GROUND WATER/SURFACE WATER INTERACTIONS AWRA SUMMER SPECULLTP CONF~NCR CZ-I PDG- ANALYSIS OF INFILTRATED STREAM WATER TO A PUMPING WELL

Size: px
Start display at page:

Download "GROUND WATER/SURFACE WATER INTERACTIONS AWRA SUMMER SPECULLTP CONF~NCR CZ-I PDG- ANALYSIS OF INFILTRATED STREAM WATER TO A PUMPING WELL"

Transcription

1 JULY 1-3 GROUND WATER/SURFACE WATER NTERACTONS AWRA SUMMER SPECULLTP CONF~NCR CZ- PDG- ANALYSS OF NFLTRATED STREAM WATER TO A PUMPNG WELL Xunhong Chen' and Xi Chen' ABSTRACT: Pumping of groundwater near a stream indues the infiltration of stream water into the nearby aquifers, and this indued stream infiltration may result in onems about water quality at the well. This paper analyzes the migration proess of the infiltrated stream water toward a pumping well. MODFLOW is used to simulate the surfae water infiltration from a shallow stream to an alluvial aquifer, and MODPATH is used to reord the loations of the infiltrated water partiles during their movement to the well. Pathelines were plotted over a ross-setion, whih is perpendiular to the stream and ontains the pumping well, to show the hydrauli onnetivity between the pumping well and the stream. The area of influene zone, as well as the travel time, was used to haraterize the migration proesses of the stream water partiles. Generally, the movement of the infiltrated stream water in the nearby aquifer is very slow, and it often takes more than six months for the infiltrated stream water to arrive at the pumping well loated only several hundred meters from the stream. A number of variables redue the hydrauli onnetivity and thus the migration proess between the stream and the well. They inlude a deep pumping well, a short pumping duration and small pumping rate, a larger distane between the stream and the pumping well, a smaller vertial hydrauli ondutivity, a low-permeability streambed, an aquitard loated below the stream but above the top of the well sreen, and a regional hydrauli gradient toward the stream. KEY TERMS: Stream infiltration; partile traking; pathlines; influene zone. NTRODUCTON When groundwater withdrawal ours in an aquifer near a stream, the one of depression generated an interept the stream after a suffiiently long period of pumping. As soon as a hydrauli gradient from the stream to the aquifer is established, the stream begins to disharge surfae water to the aquifer. When water quantity is onemed, it is an issue of streamflow depletion; if the stream water has been polluted, it is also an issue of aquifer ontamination. For areas where the pumping well is for water supplies, analysis of the migration proess for the infiltrated stream water, as well as its arrival time to the well, is neessary for well head protetion. Although Wilson (1993) and Conrad and Beljin (1996) reognized the important assoiation of stream depletion to water quality issues, detailed analyses of the migration proess of the infiltrated stream water in the aquifer were not provided. Chen (21) evaluated the travel time and pathlines of the infiltrated water for stream-aquifer systems where a fully penetrating stream and pumping well, as well as an isotropi aquifer, must be assumed. His analysis learly demonstrated that although a slow proess, the infiltrated water will eventually arrive at the pumping well for a given period. His analysis foused on the migration proess over the x-y areal plane that does not haraterize the vertial features of the partile movement. Vertial flow omponents ommonly exist around the streams that partially penetrate aquifers. ' Conservation and Survey Division and Shool of Natural Resoure Sienes, University of Nebraska- Linoln, Linoln, NE 65, xhen2@unl.edu. 511

2 The objetive of this study is to analyze the movement of stream water partiles over a vertial ross-setion where the vertial and horizontal features of the migration proesses an be losely examined. A three-dimensional stream-aquifer model is designed to simulate the stream water infiltration and migration; pathlines are onstruted to show the hydrauli onnetivity between the pumping well and the stream. The effet of a number of hydrologi parameters on the migration proess of the infiltrated stream water in the nearby aquifers will be evaluated. These parameters inlude three groups: aquifer features, well plaement and operation, and regional hydrauli gradients. METHOD The groundwater flow in the area of the pumping well and the stream an be expressed suh that,, where h is the hydrauli head; K,, K,, and K, are the hydrauli ondutivity along the x, y, and z diretions; S, is the speifi storage of the aquifer; and R is a general sink/soure term that is intrinsially positive and defines the volume of inflow to the systems per unit volume of aquifer per unit time (Anderson and Woessner 1992). To simulate pumping R = -Wp. Numerial solutions of equation (1) an be seen from MDonald and Harbaugh (19). The rate of the flow from the stream to the aquifer is alulated from the differene of hydrauli heads in the stream and the adjaent aquifer ell (MDonald and Harbaugh 19): = C,#,. (H,,,.- h) (2) where Q,,, is the flow between the stream and the aquifer, H,,, is the head in the stream, h is the head at the node in the ell underlying the stream reah, C,,, is the hydrauli ondutane of the stream-aquifer interonnetion: where K,i,, is the hydrauli ondutivity of the streambed material, Lr,,, is the length of the stream hannel in the ell, W is the width of the stream hannel in the ell, and M is the thikness of the riverbed material. t is apparent that the volume of stream water infiltrating the aquifer is the funtion of streambed ondutane C,i, and (Hriv- h). After the stream water enters the aquifer, it moves toward the pumping well. The migration proesses is ontrolled by aquifer properties and other hydrologi variables. n this study, the movement of water partiles in the nearby aquifer was traed out using MODPATH (Pollok, 199a, 199b, 1994). Partiles were plaed in the stream-aquifer interfae to represent the stream water that will first enter the aquifer as soon as a hydrauli gradient from the stream to the aquifer is produed by the pumping well. These stream water partiles will then migrate toward the pumping well under the influene of the veloity field. MODPATH reords the oordinates of the partile moving paths until the partile reahes the well. Pathlines are plotted using the oordinates to show the onnetivity between the stream and the well. The part of aquifers where the pathlines have passed through is onsidered to be replaed by stream water, and if the stream water has been polluted, the part of aquifer is onsidered ontaminated. A 3-D stream-aquifer model was built using MODFLOW. The domain dimension is 1 m in length (x diretion) and 1 m in width (y diretion), and 3 m in thikness (z diretion). 512

3 The aquifer is unonfined. n the x diretion, spaing of nodes is from 2.5 m for the area between the stream and the well to 1 m for the area near the boundary; in the y diretion, spaing of nodes is from 5 m near the well to 1 m near the boundary; and in the z diretion, a onstant spaing of nodes (3 m) is used. The numbers of olumns in the x diretion varies from 163 to 21 depending on the distane between the well and stream. The numbers of rows in y diretion and in z diretion are onstant for eah simulation senario and they are 15 and 1, respetively. The stream is 5 m wide and 3 m deep. RESULTS Simulations were onduted to analyze the effets of aquifer properties, well plaement and operation, and regional hydrauli gradient on the migration of the infiltrated stream water in the nearby aquifer. The pathlines were plotted to show the influene area between the stream and the well. A larger influene area indiates a better hydrauli onnetion between the stream and well. The travel time is alulated for eah pathline. The pathlines were onstruted only over a vertial profile that ontains the pumping well and intersets the stream perpendiularly. A total of 36 water partiles were distributed along the stream-aquifer interfae in this ross-setion. Partiles moving over this profile take a shorter time arriving at the pumping well than those of other profiles. Effets of the Aquifer Properties Alluvial aquifers often have a strong anisotropy with a larger horizontal hydrauli ondutivity than the vertial one. Pumping test results suggest that the ratio of Kx/K, an he from 1 to 1 (Chen, 199; Chen et al., 1999; Ayers et al., 199; MGuire and Kilpatrik, 199). A number of simulations were onduted to analyze the effets of aquifer anisotropy on the migration of infiltrated stream water. The pathlines for K,/K, = 1 and 1 are plotted in Figures la and lb. The area overed by the pathlines is the influene zone where the infiltrated stream water has replaed the groundwater. As indiated by the two figures, a stronger vertial anisotropy leads to a redution in the vertial extension of the influene zone. The pumping ontinued for 365 days at a onstant rate of 4 m3/d. Additional simulations were onduted to analyze the role of an aquitard in ontrolling the migration of the infiltrated stream water. The aquitard layer is loated at the elevation below the stream but above the sreen of the pumping well. Figure 2 shows the pathlines of the stream water for two aquifers with a layer of aquitard. The hydrauli ondutivity values (K2) of the aquitard used for the two simulations were.1 and 1 m/d. t is believed that the layer of aquitard redues the hydrauli onnetivity between the stream and the well, and thus results in a smaller rate of stream infiltration. As indiated by Figure 2, rarely have any water partiles arrived at the pumping well after a period of 365-day pumping at a onstant rate of 4 m3/d. The infiltrated stream water did not penetrate the aquitard of K2 =.1 d d. (Figure 2a). The values of K, and K, in other layers of the model were 1 d d. Effets of the Well Operations and Plaement The well operations are referred to as the pumping rate and pumping duration; the well plaement inludes the depth of the well sreen loated in the aquifer and the distane from the 513

4 ._ ;E T WE $ 1 = B - g Figure 1. Pathlines of nfiltrated Stream Water Affeted by Aquifer Anisotropy E._ 2 g x 2 2 m - D 5 W ii 1 - E 1 3 E a Figure 2. Pathlines of nfiltrated Stream Water Affeted by An Aquitard. - 3 E ; ii 2-1 = E.g 2 m D ii 1 z b Figure 3. Pathlines of nfiltrated Stream Water Affeted by Pumping Rates 3._._ 2 : 2 z 1 = 3.e! ix Figure 4. Pathlines of nfiltrated Stream Water Affeted by Well Loations. a 51 4

5 stream. Both the well operations and the well plaement affet hydrauli gradients between the stream and the well, and therefore affet the geometry of the influene zone. t is apparent that a higher pumping rate and a shorter distane between stream and the pumping well will shorten the arrival time of the infiltrated stream water to the well. Figure 3 shows the pathlines of two pumping rates, Q = 12 and 24 m3/d, respetively. After a 365- day period of pumping, no infiltrated stream water has arrived at the pumping well for the smaller pumping rate (Figure 3a); in ontrast, some stream water partiles that migrate in the shallow part of the aquifer have arrived at the pumping well for the larger pumping rate (Figure 3b). The earliest arrival time for this pumping rate is 3 15 days. The values of K, and K, are 1 m/d and KJK, = 1. Figure 4 shows the pathlines of the infiltrated stream water for two loations of pumping well, L = 3 and 15 m from the stream, respetively. After a ontinuous pumping of 365 days at a rate of Q = 4 m3/d, no stream water gets to the pumping well loated 3 m from the stream (Figure 4a). However, when L is only 15 m, 34 out of 36 water partiles that were released from the stream reahed the pumping well (Figure 4b). Effets of Regional Hydrauli Gradients Simulations were onduted to analyze the role of regional hydrauli gradient toward the stream. A gradient of.1 m/m was assumed in the model and thus the stream gained water from the aquifer before pumping began. The well pumped water for 365 days at rate of 4, m3/d. Pathlines in Figure 5 demonstrate that, during the pumping period, the partiles only in the right-hand side of the-stream (1 6 partiles) leak into the aquifer and move toward the well. However, the other 2 partiles are inapable of infiltrating into the aquifer, apparently beause the reversal of hydrauli gradients from the stream to the well has not been formed during the pumping period. As a result, the extension of the influene zone in Figure 5 is restrited in the upper layers of the aquifer. The hydrologi onditions used for this simulation were the same as those used in the simulation for Figure 1 b exept for there was regional hydrauli gradient. g Figure 5. Pathlines of Stream Water Affeted by Regional Hydrauli Gradient. CONCLUSONS Generally, in the part of aquifer just under the stream-aquifer interfae, the infiltrated water migrates primarily downward where a vertial flow omponent is dominant and ontrols the path of the water partiles. For the area between the stream and the well, the migration path of the stream water is mainly in the horizontal diretions. A three-dimensional flow field is also signifiant near a partially sreened well. The migration proess is generally very slow, partiularly in the area near the stream; it speeds up when the water partiles get loser to the pumping well. The required time for a water partile to arrive at the well varies signifiantly and 515

6 is dependent on the initial loations along the stream-aquifer interfae. t often requires more than six months for the water partile, whih moves along the pathlines of the largest veloity, to arrive at a well that is loated only a ouple of hundred meters from the stream and is pumped at a high rate (for example, gallons per minute). When the horizontal hydrauli ondutivity is onstant, a derease in the vertial hydrauli ondutivity generally redues the hydrauli ondutivity between the well and the stream. That is beause a vertial flow omponent exits under the stream and the vertial hydrauli ondutivity plays a role in affeting the veloity field. An aquitard ourring in the layer below the stream but above the well sreen an redue the stream infiltration signifiantly. Well plaement and operation have a strong impat on the migration proess of the infiltrated stream water. For stream-aquifer systems where there is a regional hydrauli gradient toward the stream, the hydrauli onnetivity from the stream to the well is weaker than those systems where the river stage and the groundwater level are the same before pumping. Only when a reversal of hydrauli gradient from the stream to the aquifer is established does the stream begin to disharge water to the aquifer. REFERENCES Anderson, M. P., and W. M. Woessner, Applied Ground Water Modeling, Simulation of Flow and Advetive Transport. Aademi Press, n. San Diego, 31 p. Ayers, J. F., X. H. Chen, and D. Gosselin, 199. Behavior of nitrate-nitrogen movement around a pumping high-apaity well: a field example. Ground Water 6(2): Chen, X. H., 199. Assessment of hydrauli properties from an alluvial aquifer near Grand sland, Nebraska. Journal of Amerian Water Resoures Assoiation 24(3): Chen, X.H, J. Goeke, and S. Summerside, Hydrauli properties and unertainty analysis for an unonfined alluvial aquifer. Ground Water 37 (6): Chen, X. H. 21. Migration of indued-infiltrated stream water into nearby aquifers due to seasonal ground water withdrawal. Ground Water 39(5): Conrad, L. P., and M. S. Beljin, Evaluation of an indued infiltration model as applied to glaial aquifer systems. Water Resoures Bulletin 32(6): MDonald, M. G., and A. W. Harbaugh, 19. Modular three-dimensional finite-differene groundwater flow model. Tehniques of water-resoures investigations of U. S. Geologial Survey. Book 6, CH. A, 576p. MGuire, V. L., and J. M. Kilpatrik, 199. Hydrogeology in the viinity of the Nebraska Management Systems Evaluation Area (MSEA) site, entral Nebraska, U. S. Geologial Survey Water-Resoures nvestigations Report ,25 p. Pollok, D. W., 199a. Doumentation of omputer programs to ompute and display pathlines using results from the U.S. Geologial Survey modular three-dimensional finite-differene ground-water flow model, US. Geologial Survey Open-File Report Pollok, D. W., 199b. Doumentation of GKS-based MODPATH-PLOT, US. Geologial Survey Open-File Report Pollok, D. W., User's Guide for MODPATHMODPATH-PLOT, Version 3: A Partile Traking Post-proessing Pakage for MODFLOW, the U. S. Geologial Survey Finite Differene Ground-water Flow Model, Reston, Virginia. Wilson, J. L., ndued infiltration in aquifers with ambient flow. Water Resoures Researh 29 (1):

1 INTRODUCTION. Akbar Haghinejad Mahdi Nematzadeh *

1 INTRODUCTION. Akbar Haghinejad Mahdi Nematzadeh * 916 Three-Dimensional Finite Element Analysis of Compressive Behavior of Cirular Steel Tube-Confined Conrete Stub Columns by New Confinement Relationships Abstrat This paper presents a nonlinear analysis

More information

MODELING FLEXIBLE PACKAGE/GRANULAR MATERIAL INTERATION THROUGH COMBINATION OF DISCRETE ELEMENT METHOD (DEM) AND FINITE ELEMENT METHOD (FEM)

MODELING FLEXIBLE PACKAGE/GRANULAR MATERIAL INTERATION THROUGH COMBINATION OF DISCRETE ELEMENT METHOD (DEM) AND FINITE ELEMENT METHOD (FEM) MODELING FLEXIBLE PACKAGE/GRANULAR MATERIAL INTERATION THROUGH COMBINATION OF DISCRETE ELEMENT METHOD (DEM) AND FINITE ELEMENT METHOD (FEM) Wenbo Xu, Pavan Valavala, Mark Mirgon, Sam Crabtree, Lori Kardos,

More information

Buildup Factors Calculation for a 1-MeV Point Isotropic Source in Iron, Concrete, and. Water. Skyler Butler, Maria Pinilla

Buildup Factors Calculation for a 1-MeV Point Isotropic Source in Iron, Concrete, and. Water. Skyler Butler, Maria Pinilla Buildup Fators Calulation for a 1-MeV Point Isotropi Soure in Iron, Conrete, and Water Skyler Butler, Maria Pinilla Abstrat This experiment alulates the buildup fators for 1-MeV point isotropi soure of

More information

Feed-Time Distribution in Pneumatic Feeding of Softwood Seedlings

Feed-Time Distribution in Pneumatic Feeding of Softwood Seedlings Journal of Forest Engineering 49 FeedTime Distribution in Pneumati Feeding of Softwood Seedlings Ulf Hallonborg The Forestry Researh Institute of Sweden Uppsala, Sweden ABSTRACT Long seedling feed times

More information

PROPOSAL OF A STANDARD FOR SEISMIC DESIGN OF CONFINED MASONRY BUILDINGS

PROPOSAL OF A STANDARD FOR SEISMIC DESIGN OF CONFINED MASONRY BUILDINGS Institute of Industrial Siene, University of Tokyo Bulletin of ERS, No. 37 PROPOSAL OF A STANDARD FOR SEISMIC DESIGN OF CONFINED MASONRY BUILDINGS Angel SAN BARTOLOME 1, Daniel QUIUN 1 and Paola MAYORCA

More information

Continuous temperature measurements on the pouring stand for casting moulds

Continuous temperature measurements on the pouring stand for casting moulds ARCHIVES of FOUNDRY ENGINEERING Published quarterly as the organ of the Foundry Commission of the Polish Aademy of Sienes ISSN (897-330) Volume 8 Issue /008 75 80 5/ Continuous temperature measurements

More information

Permanent Link:

Permanent Link: Citation: Boswell, Brian and Chandratilleke, Tilak. 2009. Sustainable Metal Cutting, in TIC-STH ommittee (ed), 2009 IEEE Toronto International Conferene Siene and Tehnology for Humanity, Sep 26 2009. Ryerson

More information

BPSC Main Exam 2019 ASSISTANT ENGINEER

BPSC Main Exam 2019 ASSISTANT ENGINEER DETAILED OLUTION Test Centres: Delhi, Noida, yderabad, Bhopal, Jaipur, Luknow, Bhubaneswar, Indore, Pune, Kolkata, Patna BPC Main Exam 09 AITANT ENGINEER CIVIL ENGINEERING Test Objetive Paper-II ANWER

More information

Impacts of Fire on Hydrology and Erosion in Steep Mountain Big Sagebrush Communities

Impacts of Fire on Hydrology and Erosion in Steep Mountain Big Sagebrush Communities mpats of Fire on Hydrology and Erosion in Steep Mountain Big Sagebrush Communities Frederik B. Pierson, Peter R. Robihaud, Kenneth E. Spaeth, Corey A. Moffet Abstrat ntrodution Wildfire is an important

More information

Finite Element Modeling of Pre-Stressed Hollow Core Slabs

Finite Element Modeling of Pre-Stressed Hollow Core Slabs Current Siene International Volume : 04 Issue : 04 Ot.-De. 2015 Pages :596-603 Finite Element Modeling of Pre-Stressed Hollow Core Slabs 1 Ali N. Deeb, 2 M. Abou Zeid Tarkhan and 3 E. M. El-Tehewy 1 Syrian

More information

FINITE ELEMENT MODELLING OF STEEL-CONCRETE COMPOSITE BEAMS STRENGTHENED WITH PRESTRESSED CFRP PLATE

FINITE ELEMENT MODELLING OF STEEL-CONCRETE COMPOSITE BEAMS STRENGTHENED WITH PRESTRESSED CFRP PLATE FINITE ELEMENT MODELLING OF STEEL-CONCRETE COMPOSITE BEAMS STRENGTHENED WITH PRESTRESSED CFRP PLATE H.Y. Omran 1, P. Zangeneh 2, and R. EL-Haha 3 1 PhD student, Department of Civil Engineering, University

More information

Simulation of Transient Thermal Behaviors of the System Consisting of Aluminum Plate and Phase Change Material

Simulation of Transient Thermal Behaviors of the System Consisting of Aluminum Plate and Phase Change Material Journal of Materials Sienes and Appliations 2017; 3(4): 53-57 http://www.aasit.org/journal/jmsa ISSN: 2381-0998 (Print); ISSN: 2381-1005 (Online) Simulation of Transient Thermal Behaviors of the System

More information

An Analysis of Baffles Designs for Limiting Fluid Slosh in Partly Filled Tank Trucks

An Analysis of Baffles Designs for Limiting Fluid Slosh in Partly Filled Tank Trucks The Open Transportation Journal, 21, 4, 23-32 23 Open Aess An Analysis of Baffles Designs for Limiting Fluid Slosh in Partly Filled Tank Truks T. Kandasamy, S. Rakheja * and A.K.W. Ahmed CONCAVE Researh

More information

Project Summary Determination of Capillary Pressure-Saturation Curves Involving TCE, Water and Air for a Sand and a Sandy Clay Loam

Project Summary Determination of Capillary Pressure-Saturation Curves Involving TCE, Water and Air for a Sand and a Sandy Clay Loam United States Environmental Protetion Ageny Researh and Development Robert S. Kerr Environmental Researh Laboratory Ada, OK 70 EPA/00/SR-9/005 Marh 99 Projet Summary Determination of Capillary Pressure-Saturation

More information

EXPERIMENTAL INVESTIGATION OF ECCENTRIC REINFORCED CONCRETE BEAM-COLUMN-SLAB CONNECTIONS UNDER EARTHQUAKE LOADING

EXPERIMENTAL INVESTIGATION OF ECCENTRIC REINFORCED CONCRETE BEAM-COLUMN-SLAB CONNECTIONS UNDER EARTHQUAKE LOADING 13 th World Conferene on Earthquake Engineering Vanouver, B.C., Canada August 1-6, 24 Paper No. 215 EXPERIMENTAL INVESTIGATION OF ECCENTRIC REINFORCED CONCRETE BEAM-COLUMN-SLAB CONNECTIONS UNDER EARTHQUAKE

More information

~ Early Life

~ Early Life Measurements and reporting systems are established Suessful validation of the deployment triggers the launh of Early Life Support (ELS). 6.0 Deploy & Verify - Q)... E Q) t1 Ol Change.r::: t1 0 t1 (jj Ol

More information

STUDY ON THE SEISMIC BEHAVIOR OF SELF-ANCHORED SUSPENSION BRIDGES

STUDY ON THE SEISMIC BEHAVIOR OF SELF-ANCHORED SUSPENSION BRIDGES 384 Journal of Marine Siene and Tehnology, Vol., No. 4, pp. 384-39 () DOI:.69/JMST--34- STUDY ON THE SEISMIC BEHAVIOR OF SELF-ANCHORED SUSPENSION BRIDGES Wen-Liang Qiu, Chang-Huan Kou, Chin-Sheng Kao 3,

More information

Camber Variability in Prestressed Concrete Bridge Beams

Camber Variability in Prestressed Concrete Bridge Beams CONCRETE BRIDGE TECHNOLOGY Camber Variability in Prestressed Conrete Bridge Beams by Dr. Maher Tadros, econstrut Beams ast with extra amber in storage yard at Conrete Tehnology Corporation; amber shown

More information

7001 Diamond Snap-Form ICF Code Considerations With the multitude of lightweight onrete forming systems in the onstrution market, building offiials are raising questions about ode ompliane and/or ode evaluation

More information

The influence of pallets on the behaviour and design of steel drive-in storage racks - Part II Design

The influence of pallets on the behaviour and design of steel drive-in storage racks - Part II Design University of Wollongong Researh Online Faulty of Engineering and Information Sienes - Papers: Part A Faulty of Engineering and Information Sienes 2013 The influene of pallets on the behaviour and design

More information

ModuSec. Secure and efficient IT room solutions Composite Panel Systems Compared. Panel Systems are not all the same!

ModuSec. Secure and efficient IT room solutions Composite Panel Systems Compared. Panel Systems are not all the same! ModuSe Seure and effiient IT room solutions Composite Panel Systems Compared Panel Systems are not all the same! When it omes to aommodating ritial IT systems, the first issue to look at is the environment

More information

Keywords: Greenhouse; Thermal performance; Water pipes heating; Infrared radiation; Energy balance; Heating efficiency

Keywords: Greenhouse; Thermal performance; Water pipes heating; Infrared radiation; Energy balance; Heating efficiency International Symposium Greensys 7 "High Tehnology for Greenhouse system Management" Naples Italy, 4-6 Otober 7 Investigation of the Potential of Infrared-radiation (IR) to Redue Energy Consumption in

More information

Corrosion of reinforcing steel is widely accepted as the

Corrosion of reinforcing steel is widely accepted as the Strength eterioration of Reinfored Conrete Columns Exposed to Chloride Attak R. Greo, G.C. Marano Abstrat This paper fouses on reinfored onrete olumns load arrying apaity degradation over time due to hloride

More information

Energy Savings from Increased Preventive Maintenance on Indiana Highways

Energy Savings from Increased Preventive Maintenance on Indiana Highways TRANSPORTATION RESEARCH RECORD 112 27 Energy Savings from Inreased Preventive Maintenane on Indiana Highways EssAM A. SHARAF AND KuMARES C. SINHA In this paper are desribed the development of trade-off

More information

Characterization of Cranberry Decline in British Columbia Cranberry Beds RESEARCH REPORT, December 2015

Characterization of Cranberry Decline in British Columbia Cranberry Beds RESEARCH REPORT, December 2015 Charaterization of Cranberry Deline in British Columbia Cranberry Beds RESEARCH REPORT, Deember 201 Projet Coordinator: Dr. Rebea Harbut, KPU CO-PIs: Dr. Peter Oudemons, Rutgers University Dr. Les Lavkulih,

More information

PHASE TRANSFORMATIONS IN STEEL DURING RAPID HEAT TREATMENT

PHASE TRANSFORMATIONS IN STEEL DURING RAPID HEAT TREATMENT PHASE TRANSFORMATONS N STEEL DURNG RAPD HEAT TREATMENT 1. PROHASZKA nstitute of Mehanial Tehnology and Materials Siene, Tehnial University, H-1521 Budapest Reeived April 19, 1987 Abstrat Phase transformations

More information

Proposal for a new shear design method

Proposal for a new shear design method Chapter 6 Proposal for a new shear design method The behaviour of beams failing in shear has been studied in the previous hapters, with speial attention paid to high-strength onrete beams. Some aspets

More information

Optimizing Traffic Diversion Around Bottlenecks

Optimizing Traffic Diversion Around Bottlenecks 22 Optimizing Traffi Diversion Around Bottleneks YI-CHIN HU and PAUL SCHONFELD ABSTR.CT A traffi simulation and optimization model has been developed to analyze traffi flow in large networks with severe

More information

Mechanical Properties of High-Strength Concrete Manish Kumar 1, A.M. ASCE; Zhaoyu Ma 2 ; Moses Matovu 2

Mechanical Properties of High-Strength Concrete Manish Kumar 1, A.M. ASCE; Zhaoyu Ma 2 ; Moses Matovu 2 1.1 Introdution Mehanial Properties of High-Strength Conrete Manish Kumar 1, A.M. ASCE; Zhaoyu Ma 2 ; Moses Matovu 2 Mehanial properties of High-Strength Conrete (HSC) an be divided in two groups as shortterm

More information

Comparison of Water Balance Predictions Made with HYDRUS-2D and Field Data From the Alternative Cover Assessment Program (ACAP)

Comparison of Water Balance Predictions Made with HYDRUS-2D and Field Data From the Alternative Cover Assessment Program (ACAP) MODFlOW and More 2003: UndefStaning hrough Modeling - Conferene ProeedingS PoeW Zheng H. & Qd'8rty -_.mines.eduligwml Comparison of Water Balane Preditions Made with HYDRUS-2D and Field Data From the Alternative

More information

A study on local stresses of corrugated steel webs in PC bridges under prestressing

A study on local stresses of corrugated steel webs in PC bridges under prestressing A study on loal stresses of orrugated steel webs in PC bridges under prestressing Shogo MORI *, Takao MIYOSHI **, Hisato KATOH *** Nobuo NISHIMURA ****, Satoshi NARA ***** Abstrat Generally, seldom orrugated

More information

Strength of Glass from Hertzian Line Contact

Strength of Glass from Hertzian Line Contact Strength of Glass from Hertzian Line Contat Wenrui Cai, Brian Cuerden, Robert E. Parks, James H. Burge College of Optial Sienes, University of Arizona, Tuson, AZ USA 85721 Phone: 52-626-486, 52-621-8182

More information

WATER WITHIN LIGHTWEIGHT AGGREGATE CONCRETE AND ITS RELATION TO AUTOGENOUS SHRINKAGE

WATER WITHIN LIGHTWEIGHT AGGREGATE CONCRETE AND ITS RELATION TO AUTOGENOUS SHRINKAGE WATER WITHIN LIGHTWEIGHT AGGREGATE CONCRETE AND ITS RELATION TO AUTOGENOUS SHRINKAGE S.A. Kristiawan Department of Civil Eng.Sebelas Maret University, e-mail: sa_kristiawan@uns.a.id Senot Sangadji Department

More information

Dimensions of propulsion shafts and their permissible torsional vibration stresses

Dimensions of propulsion shafts and their permissible torsional vibration stresses (Feb 2005) (orr.1 Mar 2012) (orr.2 Nov 2012) (Rev.1 Aug 2014) (Rev.2 Apr 2015) Dimensions of propulsion shafts and their permissible torsional vibration stresses.1 Sope This UR applies to propulsion shafts

More information

Finite Element Analysis of sustainable and deconstructable semi-rigid beam-tocolumn. composite joints

Finite Element Analysis of sustainable and deconstructable semi-rigid beam-tocolumn. composite joints ICCM214 28-3 th July, Cambridge, England Finite Element Analysis of sustainable and deonstrutable semi-rigid beam-toolumn omposite joints *Abdolreza Ataei 1, Mark A. Bradford 2 1,2 Centre for Infrastruture

More information

Tests on Reinforced Concrete Slabs with Pre-stressing and with Transverse Reinforcement under Impact Loading

Tests on Reinforced Concrete Slabs with Pre-stressing and with Transverse Reinforcement under Impact Loading 20th International Conferene on Strutural Mehanis in Reator Tehnology (SMiRT 20) Espoo, Finland, August 9-14, 2009 SMiRT 20-Division 5, Paper 2015 Tests on Reinfored Conrete Slabs with Pre-stressing and

More information

Pore-level Influence of Contact Angle on Fluid Displacements In Porous Media

Pore-level Influence of Contact Angle on Fluid Displacements In Porous Media Pore-level Influene of Contat Angle on Fluid Displaements In Porous Media H.A. Akhlaghi Amiri * University of Stavanger (UiS), Department of Petroleum Engineering, 4036 Stavanger, Norway *Corresponding

More information

Detection of empty grate regions in firing processes using infrared cameras

Detection of empty grate regions in firing processes using infrared cameras 11 th International Conferene on Quantitative InfraRed Thermography Detetion of empty grate regions in firing proesses using infrared ameras by J. Matthes*, P. Waibel* and H.B. Keller* *Institute for Applied

More information

Fatigue and Creep-Fatigue Testing of Bellows at Elevated Temperature

Fatigue and Creep-Fatigue Testing of Bellows at Elevated Temperature S. Yamamoto K. Isobe S. Ohte Mehanial Engineering Laboratory, Researh and Development Center. N. Tanaka S. Ozaki Nulear Engineering Laboratory, Nulear Energy Group. K. Kimura Advaned Reator Engineering

More information

CHAPTER 3 FABRICATION AND EXPERIMENTS OF MICROCHANNEL HEAT SINKS

CHAPTER 3 FABRICATION AND EXPERIMENTS OF MICROCHANNEL HEAT SINKS 66 CHAPTER 3 FABRICATION AND EXPERIMENTS OF MICROCHANNEL HEAT SINKS 3.1 OVERVIEW In this hapter, fabriation of slitting saw type plain milling utters (of various dimensions) and form type slotter shaping

More information

BEHAVIOR OF PRESTRESSED SIMPLE AND CONTINUOUS PARTIALLY COMPOSITE STEEL-CONCRETE BEAMS

BEHAVIOR OF PRESTRESSED SIMPLE AND CONTINUOUS PARTIALLY COMPOSITE STEEL-CONCRETE BEAMS ACTA TECHNICA CORVINIENSIS Bulletin of Engineering Tome IX [2016], Fasiule 3 [July September] ISSN: 2067 3809 1.Mohamed A. A. EL-SHAER, 2. Shymaa M. MUKHTAR BEHAVIOR OF PRESTRESSED SIMPLE AND CONTINUOUS

More information

Suggested Changes to NZS3101:2006 with Amendments 1 and 2

Suggested Changes to NZS3101:2006 with Amendments 1 and 2 1 Suggested Changes to NZS3101:2006 with Amendments 1 and 2 Rihard Fenwik and Dene Cook Introdution NZS 3101: 2006 Conrete Strutures Standard is a design ode published by Standards New Zealand. Sine the

More information

Supplementary Materials for

Supplementary Materials for advanes.sienemag.org/gi/ontent/full/3/4/e1602629/dc1 Supplementary Materials for Single-layer nanosheets with exeptionally high and anisotropi hydroxyl ion ondutivity Pengzhan Sun, Renzhi Ma, Xueyin Bai,

More information

Resilient Properties of Laboratory Compacted Subgrade Soils

Resilient Properties of Laboratory Compacted Subgrade Soils TRANSPORTATON RESEARCH RECORD 154 87 Resilient Properties of Laboratory Compated Subgrade Soils LOUAY N. MOHAMMAD, ANAND J. PUPPALA, AND PRASAD ALAVLL The subgrade of road bed soils is generally onstruted

More information

Analysing effects of climate change and forestry management on water yield using conceptual models

Analysing effects of climate change and forestry management on water yield using conceptual models Man's Influene on Freshwater Eosystems and Water Use (Proeedings of a Boulder Symposium, July 1995). IAHS Publ. no. 230, 1995. 237 Analysing effets of limate hange and forestry management on water yield

More information

Laboratory Investigation of Properties of Asphalt-Rubber Concrete Mixtures

Laboratory Investigation of Properties of Asphalt-Rubber Concrete Mixtures TRANSPORTATION RESEARCH RECORD 1417 93 Laboratory Investigation of Properties of Asphalt-Rubber Conrete Mixtures TAISIR S. l

More information

Steel. Members. in medium to. composite. provisions for. the available. b) strength of. design,

Steel. Members. in medium to. composite. provisions for. the available. b) strength of. design, Chapter 13 Steel Conrete Composite Strutural Members 13.1 General Provisions for Steel Conrete Composite Strutural Members This setion states the sope of the speifiation, summarizess referened speifiations,

More information

Experiment Station. Department of Soil and Crop Sciences

Experiment Station. Department of Soil and Crop Sciences Tehnial Bulletin TB06-03 August 2006 Ag riultural Experiment Station College of Agriultural Sienes Department of Soil and Crop Sienes Western Colorado Researh Center Organi Alternatives for Weed Control

More information

Numerical Modeling and Experimental Investigation of the Failure Modes of the Cellular Foam Sandwich Structures

Numerical Modeling and Experimental Investigation of the Failure Modes of the Cellular Foam Sandwich Structures Journal of Metals, Materials and Minerals, Vol.18 No.2 pp.111-115, 2008 Numerial Modeling and Experimental Investigation of the Failure Modes of the Cellular Foam Sandwih Strutures Jörg FELDHUSEN 1, Sirihai

More information

Seismic Fragility Assessment of Transmission Towers via Performance-based Analysis

Seismic Fragility Assessment of Transmission Towers via Performance-based Analysis Seismi Fragility Assessment of Transmission Towers via Performane-based Analysis Liyu XIE, Jue TANG, Hesheng TANG & Qiang XIE Institute of Strutural Engineering and Disaster Redution, College of Civil

More information

LOW FREQUENCY BUCKETS FOR INDUSTRIAL STEAM TURBINES by

LOW FREQUENCY BUCKETS FOR INDUSTRIAL STEAM TURBINES by LOW FREQUENCY BUCKETS FOR INDUSTRIAL STEAM TURBINES by Firm L. Weaver Engineering Consultant Sun City Center, Florida Firm L. Weaver graduated from Roanoke Coll ege, in Salem, Virginia, with a B.S. degree

More information

Nano and microhardness testing of heterogeneous structures

Nano and microhardness testing of heterogeneous structures 85 ISSN 1392 1207. MECANIKA. 2016 Volume 22(2): 85 89 Nano and mirohardness testing of heterogeneous strutures S. Baskutis*, V. Vasauskas**, A. Žunda*** *Kaunas University of Tehnology, Studentų str. 56,

More information

Post-Tensioned Two-Way Slab

Post-Tensioned Two-Way Slab The Medial Oie Building Malvern, PA 13 Post-Tensioned Two-Way Slab Introdution The Filigree beam system reates a thin lightweight loor system that leaves plenty o open plenum spae or mehanial and eletrial

More information

International Journal of Research (IJR) e-issn: , p- ISSN: X Volume 3, Issue 01, January 2016

International Journal of Research (IJR) e-issn: , p- ISSN: X Volume 3, Issue 01, January 2016 International Journal of Researh (IJR) Available at http://internationaljournalofresearh.org Study of failure probability by deterministi method reliability-strength applied to metal ables intended for

More information

Alternative Skid Trail Retirement Options for Steep Terrain Logging

Alternative Skid Trail Retirement Options for Steep Terrain Logging 2001 Counil on Forest Engineering (COFE) Conferene Proeedings: Appalahian Hardwoods: Managing Change Alternative Skid Trail Retirement Options for Steep Terrain Logging Mathew F. Smidt Assistant Professor

More information

Energy Saving Opportunities through Heat Recovery from Cement Processing Kilns: A Case Study

Energy Saving Opportunities through Heat Recovery from Cement Processing Kilns: A Case Study Energy Saving Opportunities through Heat Reovery from Cement Proessing Kilns: A Case Study I. I. AL-HINTI a, A. AL-GHANDOOR b, A. AL-NAJI, M. ABU-KHASHABEH, M. JOUDEH, M. AL-HATTAB a Department of Mehanial

More information

APPLICATION OF BASE ISOLATION IN HIGH VOLTAGE ELECTRICAL EQUIPMENT.

APPLICATION OF BASE ISOLATION IN HIGH VOLTAGE ELECTRICAL EQUIPMENT. The th World Conferene on Earthquake Engineering Otober 7, 8, Beijing, China APPLICATION OF BASE ISOLATION IN HIGH VOLTAGE ELECTRICAL EQUIPMENT ABSTRACT: Han Junke, Zhang Chunlei, Yang Fengli, Cao Meigen

More information

Effect of Variation of Fuel Composition on Gas Turbine Off-Design Performance

Effect of Variation of Fuel Composition on Gas Turbine Off-Design Performance Applied Mehanis and Materials Submitted: 2014-08-28 ISSN: 1662-7482, Vol. 666, pp 194-198 Aepted: 2014-08-28 doi:10.4028/www.sientifi.net/amm.666.194 Online: 2014-10-20 2014 Trans Teh Publiations, Switzerland

More information

Yield curvature for seismic design of circular reinforced concrete columns

Yield curvature for seismic design of circular reinforced concrete columns University of Wollongong Researh Online Faulty of Engineering - Papers (Arhive) Faulty of Engineering and Information Sienes 1 Yield urvature for seismi design of irular reinfored onrete olumns M Neaz

More information

A Capillary Pressure Model for Geothermal Reservoirs

A Capillary Pressure Model for Geothermal Reservoirs Geothermal Resoures Counil Transations, Vol. 26, September 2002 A Capillary ressure Model for Geothermal Reservoirs Kewen Li and Roland N. Horne Stanford Geothermal rogram, Stanford University (kewenli@stanford.edu)

More information

High Rate-Dependent Interaction Diagrams for Reinforced Concrete Columns

High Rate-Dependent Interaction Diagrams for Reinforced Concrete Columns Amerian J. of Engineering and Applied Sienes 4 (1): 1-9, 2011 ISSN 1941-7020 2010 Siene Publiations High Rate-Dependent Interation Diagrams for Reinfored Conrete Columns 1 Taher Abu-Lebdeh, 1 Sameer Hamoush,

More information

Conditioned defensive burying in rats free to escape

Conditioned defensive burying in rats free to escape Animal Learning & Behavior 1980, 8(3),447-451 Conditioned defensive burying in rats free to esape JOHN P. J. PINEL, DALLAS TREIT, FERIAL LADAK, and A. J. MaLENNAN University ofbritish Columbia, Vanouver,

More information

Topp, Claus; Nielsen, Peter V.; Heiselberg, Per; Sparks, L. E. ; Howard, E. M. ; Mason, M.

Topp, Claus; Nielsen, Peter V.; Heiselberg, Per; Sparks, L. E. ; Howard, E. M. ; Mason, M. Downloaded from vbn.aau.dk on: Marh 8, 219 Aalborg Universitet Experiments on Evaporative Emissions in Ventilated Rooms Topp, Claus; Nielsen, Peter V.; Heiselberg, Per; Sparks, L. E. ; Howard, E. M. ;

More information

Composite Steel Floor Deck-Slabs

Composite Steel Floor Deck-Slabs AMERICAN NATIONAL STANDARDS / STEEL DECK C - 2017 Standard for Composite Steel Floor Dek-Slabs opyright 2017 steel dek institute 1. General AMERICAN NATIONAL STANDARDS / STEEL DECK 1.1 Sope: A. This Standard

More information

NUMERICAL SIMULATION OF BEHAVIOUR OF REINFORCED CONCRETE STRUCTURES CONSIDERING CORROSION EFFECTS ON BONDING

NUMERICAL SIMULATION OF BEHAVIOUR OF REINFORCED CONCRETE STRUCTURES CONSIDERING CORROSION EFFECTS ON BONDING 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 NUMERICAL SIMULATION OF BEHAVIOUR OF REINFORCED CONCRETE STRUCTURES CONSIDERING CORROSION EFFECTS ON BONDING C.Q. Li 1, S.T. Yang 2 and M. Saafi 3 ABSTRACT

More information

EITF ABSTRACTS. To take advantage of new capabilities in electronic commerce and advances in computer

EITF ABSTRACTS. To take advantage of new capabilities in electronic commerce and advances in computer EITF ABSTRACTS Issue No. 97-13 Title: Aounting for Costs Inurred in Connetion with a Consulting Contrat or an Internal Projet That Combines Business Proess Reengineering and Information Tehnology Transformation

More information

Production Cost Optimization Model Based on CODP in Mass Customization

Production Cost Optimization Model Based on CODP in Mass Customization IJCSI International Journal of Computer Siene Issues, Vol. 0, Issue, No, January 03 www.ijcsi.org 60 Prodution Cost Optimization Model Based on CODP in Mass Customization Yanhong Qin, Yuanfang Geng Shool

More information

Finite Element Modelling of Steel/Concrete Bond for Corroded Reinforcement

Finite Element Modelling of Steel/Concrete Bond for Corroded Reinforcement Finite Element Modelling of Steel/Conrete Bond for Corroded einforement By Qixin Du A thesis Presented to the University of Ottawa in fulfillment of the requirements for Master of Applied Siene in Civil

More information

RESILIENT INFRASTRUCTURE June 1 4, 2016

RESILIENT INFRASTRUCTURE June 1 4, 2016 RESILIENT INFRASTRUCTURE June 1 4, 2016 PUNCHING SHEAR BEHAVIOUR OF HIGH STRENGTH CONCRETE SLAB-COLUMN CONNECTIONS REINFORCED WITH GFRP BARS Ahmed M. Hussein MS Student, University o Manitoba, Canada Ehab

More information

Draft Indian Standard TEST PROCEDURE FOR THERMOSYPHON TYPE DOMESTIC SOLAR HOT WATER HEATING SYSTEMS ICS ; ;

Draft Indian Standard TEST PROCEDURE FOR THERMOSYPHON TYPE DOMESTIC SOLAR HOT WATER HEATING SYSTEMS ICS ; ; Draft for Comments Only Do: MED 04(1050)C Draft Indian Standard ES PROCEDURE FOR HERMOSYPHON YPE DOMESIC SOLAR HO WAER HEAIN SYSEMS ICS 27.160; 91.140.65; 97.100.99 Not to be reprodued without the permission

More information

Full Scale Load Testing of Selected RG4 Supporting Beam

Full Scale Load Testing of Selected RG4 Supporting Beam Full Sale Load Testing of Seleted RG4 Supporting Beam BPEX PROJECT Maptaphut, Rayong Final Report by Civil and Environmental Engineering Design and Consulting Servie Mahidol University Applied and Tehnologial

More information

WAER QUALITY CAPTURE VOLUME FOR STORMWATER BMP and LID DESIGNS

WAER QUALITY CAPTURE VOLUME FOR STORMWATER BMP and LID DESIGNS Guo, James C. Y. Urbonas, B. and MaKenzie K. (2012) Water Quality Capture Volume for LID and BMP Designs, HEENG- 1539, aepted for publiation on ASCE J of Hydrologi Engineering, Ot, 2012 WAER QUALITY CAPTURE

More information

Generating Light from Stoves using a Thermoelectric Generator

Generating Light from Stoves using a Thermoelectric Generator Generating Light from Stoves using a Thermoeletri Generator Dan Mastbergen, dmast@engr.olostate.edu Dr. Bryan Willson, Bryan.Willson@olostate.edu Engines and Energy Conversion Laboratory Department of

More information

A WIND-DRIVEN HYDRODYNAMIC AND POLLUTANT TRANSPORT MODEL

A WIND-DRIVEN HYDRODYNAMIC AND POLLUTANT TRANSPORT MODEL Global NEST Journal, Vol 9, No, pp 117-131, 7 Copyright 7 Global NEST Printed in Greee. All rights reserved A WIND-DRIVEN HYDRODYNAMIC AND POLLUTANT TRANSPORT MODEL IOANNIS K. TSANIS* USAMA SAIED Department

More information

Fracture of soft elastic foam

Fracture of soft elastic foam Frature of soft elasti foam Zhuo Ma Department of Aerospae Engineering, Iowa State University, Ames, IA 50011 zhuoma@iastate.edu Xianghao Feng Department of Aerospae Engineering, Iowa State University,

More information

Prediction of Temperature and Aging Effects on the Properties of Concrete

Prediction of Temperature and Aging Effects on the Properties of Concrete Predition of Temperature and Aging Effets on the Properties of Conrete Jin-Keun Kim 1* and Inyeop Chu 1 1 KAIST, Republi of Korea * E-mail: kimjinkeun@kaist.a.kr ABSTRACT For the sustainable onrete strutures,

More information

Waste Shell Husks Concrete: Durability, Permeability and Mechanical Properties

Waste Shell Husks Concrete: Durability, Permeability and Mechanical Properties Journal of Building Constrution and Planning Researh, 2013, 1, 61-66 http://dx.doi.org/10.4236/jbpr.2013.13009 Published Online September 2013 (http://www.sirp.org/journal/jbpr) 61 Waste Shell Husks Conrete:

More information

ENVIRONMENTAL IMPACT ASSESSMENT OF A METRO INFRASTRUCTURE FACILITY CONSTRUCTION BY MODELLING WATER AND SOIL POLLUTION

ENVIRONMENTAL IMPACT ASSESSMENT OF A METRO INFRASTRUCTURE FACILITY CONSTRUCTION BY MODELLING WATER AND SOIL POLLUTION Global NEST Journal, Vol 16, No X, pp XX-XX, 2014 Copyright 2014 Global NEST Printed in Greee. All rights reserved ENVIRONMENTAL IMPACT ASSESSMENT OF A METRO INFRASTRUCTURE FACILITY CONSTRUCTION BY MODELLING

More information

Published in: 20th International ESAFORM Conference on Material Forming: Proceedings. Document Version: Peer reviewed version

Published in: 20th International ESAFORM Conference on Material Forming: Proceedings. Document Version: Peer reviewed version Investigation on Thermomehanial Properties of Poly (l-lati aid) for the Streth Blow Moulding Proess of Bioresorbable Vasular Saffold Wei, H., & Menary, G. (017). Investigation on Thermomehanial Properties

More information

The Effect of Texture on the Serrated Flow in Peak-Aged 2090 Al-Li Alloy

The Effect of Texture on the Serrated Flow in Peak-Aged 2090 Al-Li Alloy Solid State Phenomena Vol. 105 (2005) pp. 227-232 online at http://www.sientifi.net 2005 Trans Teh Publiations, Switzerland The Effet of Texture on the Serrated Flow in Peak-Aged 2090 Al-Li Alloy Y.Z.

More information

ESTIMATION OF FRACTURE TOUGHNESS OF THE OXIDE SCALES. Jozef HRABOVSKÝ, Petr LOŠÁK, Jaroslav HORSKÝ

ESTIMATION OF FRACTURE TOUGHNESS OF THE OXIDE SCALES. Jozef HRABOVSKÝ, Petr LOŠÁK, Jaroslav HORSKÝ ESTIMATION OF FRACTURE TOUGHNESS OF THE OXIDE SCALES Jozef HRABOVSKÝ, Petr LOŠÁK, Jaroslav HORSKÝ Heat Transfer and Fluid Flow Laboratory, Faulty of Mehanial Engineering, VUT Brno, Tehniká 2, 616 69 Brno,

More information

J. A. Avila Institute of Engineering, National University of Mexico (UNAM), Mexico. Abstract. 1 Introduction

J. A. Avila Institute of Engineering, National University of Mexico (UNAM), Mexico. Abstract. 1 Introduction High Performane Strutures and Materials V 99 Prinipal results of the inelasti seismi performane of a 17-story RC building loated in the soft-soil area in Mexio City with normal-strength onrete and with

More information

Shear Transfer Strength Evaluation for Ultra-High Performance Fiber Reinforced Concrete

Shear Transfer Strength Evaluation for Ultra-High Performance Fiber Reinforced Concrete Shear Transfer Strength Evaluation for Ultra-High Performane Fiber Reinfored Conrete Ji-hyung Lee, and Sung-gul Hong Abstrat Ultra High Performane Fiber Reinfored Conrete (UHPFRC) is distinguished from

More information

WATER USE EFFICIENCY OF IRRIGATED SUGARCANE AS AFFECTED BY ROW SPACING AND VARIETY

WATER USE EFFICIENCY OF IRRIGATED SUGARCANE AS AFFECTED BY ROW SPACING AND VARIETY WATER USE EFFICIENCY OF IRRIGATED SUGARCANE AS AFFECTED BY ROW SPACING AND VARIETY F OLIVIER and A SINGELS South Afrian Sugar Assoiation Experiment Station, P/Bag X02, Mount Edgeombe, 4300, South Afria

More information

Strategic Choice of Network Externality and its Impact on Digital Piracy

Strategic Choice of Network Externality and its Impact on Digital Piracy From the SeletedWorks of Sougata Poddar Summer 06 Strategi Choie of Network Externality and its Impat on Digital Piray Sougata Poddar, University of Redlands Yuanzhu u, Central University of Finane and

More information

Performances of Landfill Liners Under Optimum Moisture Conditions

Performances of Landfill Liners Under Optimum Moisture Conditions Performanes of Landfill Liners Under Optimum Moisture Conditions Saravanan Mariappan Post Dotoral Researh Fellow, Department of Civil Engineering, University Malaya Kuala Lumpur, Malaysia vanan.nexus@gmail.om

More information

ENHANCEMENT OF MASS TRANSFER IN SOLID-LIQUID EXTRACTION BY PULSED ELECTRIC FIELD

ENHANCEMENT OF MASS TRANSFER IN SOLID-LIQUID EXTRACTION BY PULSED ELECTRIC FIELD Journal of the University of Chemial Niola Tehnology Shoilevand Metallurgy, 40, 4, 2005, 329-334 ENHANCEMENT OF MASS TRANSFER IN SOLID-LIQUID EXTRACTION BY PULSED ELECTRIC FIELD M. Savova 1, H. Bart 2,

More information

DEVELOPMENT AND INVESTIGATION OF A SYMMETRIC INDUCTION HEATING UNIT FOR SPHERICAL SHAPE METAL WARE

DEVELOPMENT AND INVESTIGATION OF A SYMMETRIC INDUCTION HEATING UNIT FOR SPHERICAL SHAPE METAL WARE Journal of Chemial Sergey Tehnology S. Titov, Vitor and Metallurgy, N. Meshheryakov 53, 5, 2018, 1009-1016 DEVELOPMENT AND INVESTIGATION OF A SYMMETRIC INDUCTION HEATING UNIT FOR SPHERICAL SHAPE METAL

More information

An Evaluation of Environmental Impacts of Different Truck Sizes in Last Mile Distribution in the city of São Paulo, Brazil

An Evaluation of Environmental Impacts of Different Truck Sizes in Last Mile Distribution in the city of São Paulo, Brazil An Evaluation of Environmental Impats of Different Truk Sizes in Last Mile Distribution in the ity of São Paulo, Brazil Nathalia C. Zambuzi 1, Claudio B. Cunha 1, Edgar Blano 2, Hugo Yoshizaki 1, Carla

More information

SDI-C-2011 Standard for Composite Steel Floor Deck-Slabs 30 November General

SDI-C-2011 Standard for Composite Steel Floor Deck-Slabs 30 November General 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 1. General SDI-C-2011 Standard for Composite Steel Floor Dek-Slabs 30 November

More information

Numerical analysis of Masonry Spandrels with Shallow Arches

Numerical analysis of Masonry Spandrels with Shallow Arches Numerial analysis of Masonry Spandrels with Shallow Arhes Sujith Mangalathu Rose Programme, UME Shool, IUSS Pavia, Italy. Eole Polytehnique Fédérale de Lausanne (EPFL), Switzerland Katrin Beyer Eole Polytehnique

More information

A Novel and More Efficient Way to Grind Punching Tools

A Novel and More Efficient Way to Grind Punching Tools A Novel and More Effiient Way to Grind Punhing Tools P. Krajnik 1,, R. Drazumeri, J. A. Badger 3, C. M. Niolesu 1, J. Kopa 1 KTH Royal Institute of Tehnology, Prodution Engineering, Stokholm, Seden University

More information

Implementation of Structures in the CMS: Part III, Culvert

Implementation of Structures in the CMS: Part III, Culvert Implementation of Strutures in the CMS: Part III, Culvert by Honghai Li, Alejandro Sanhez, Weiming Wu, and Christopher Reed PURPOSE: This Coastal and Hydraulis Engineering Tehnial Note (CHETN) desribes

More information

THE ENERGY DISSIPATION EFFECTS OF REDUNDANT MEMBERS IN SILOS UNDER EARTHQUAKES

THE ENERGY DISSIPATION EFFECTS OF REDUNDANT MEMBERS IN SILOS UNDER EARTHQUAKES 269 THE ENEGY DISSIPATION EFFECTS OF EDUNDANT MEMBES IN SILOS UNDE EATHQUAKES Li Zhiming 1 and Geng Shujiang 1 SUMMAY An analytial study is made the response to strong base motion reinfored onrete silo

More information

Department of Economics. Strategic Choice of Network Externality

Department of Economics. Strategic Choice of Network Externality Department of Eonomis Working Paper Series Strategi Choie of Network Externality Yuanzhu u & Sougata Poddar 05/03 Strategi Choie of Network Externality Yuanzhu u Sougata Poddar China Eonomis and Management

More information

EXPERIMENTAL INVESTIGATION ON RECTANGULAR SRC COLUMNS WITH MULTI-SPIRAL CONFINEMENTS

EXPERIMENTAL INVESTIGATION ON RECTANGULAR SRC COLUMNS WITH MULTI-SPIRAL CONFINEMENTS 4th International Conferene on Earthquake Engineering Taipei, Taiwan Otober 12-13, 26 Paper No. 49 EXPERIMENTL INVESTIGTION ON RECTNGULR SRC COLUMNS WITH MULTI-SPIRL CONFINEMENTS C.C. Weng 1, Y.L. Yin

More information

Computational Fluid Dynamics and Building Energy Performance Simulation Nielsen, Peter Vilhelm; Tryggvason, Tryggvi

Computational Fluid Dynamics and Building Energy Performance Simulation Nielsen, Peter Vilhelm; Tryggvason, Tryggvi Aalborg Universitet Computational Fluid Dynamis and Building Energy Performane Simulation Nielsen, Peter Vilhelm; Tryggvason, Tryggvi Publiation date: 1998 Doument Version Publisher's PDF, also known as

More information

CREEP BEHAVIOUR OF GEOMETRICALLY NONLINEAR SOFT CORE SANDWICH PANELS

CREEP BEHAVIOUR OF GEOMETRICALLY NONLINEAR SOFT CORE SANDWICH PANELS 20 th International Conferene on Composite Materials CRP BHAVIOUR OF GOMTRICALLY NONLINAR SOFT COR SANDWICH PANLS hab Hamed 1 and Yeoshua Frostig 2 1 Centre for Infrastruture ngineering and Safety, Shool

More information

VARYING WIDTH PLANTING STRIP (MIN 8' WIDE) (TYP.) TYPE II MODIFIED DRIVEWAY (TYP.) 10' SIDEWALK "A"

VARYING WIDTH PLANTING STRIP (MIN 8' WIDE) (TYP.) TYPE II MODIFIED DRIVEWAY (TYP.) 10' SIDEWALK A VIINITY MAP SETION "A-A" NOT TO SALE TREE @ 40' O.. PROTET EXISTING 30" AND 36" OAK IN TING STRIP VARYING WIDTH TING STRIP (MIN 8' WIDE) TYPE II MODIFIED DRIVEWAY SAWUT EXISTING ONRETE PAVEMENT PATIO/PLAZA

More information

INVESTIGATION OF THE SIZE EFFECT IN SHEAR OF STEEL FIBER REINFORCED CONCRETE (SFRC) SLENDER BEAMS

INVESTIGATION OF THE SIZE EFFECT IN SHEAR OF STEEL FIBER REINFORCED CONCRETE (SFRC) SLENDER BEAMS High Performane Fiber Reinfored Cement Composites (HPFRCC7), INVESTIGATION OF THE SIZE EFFECT IN SHEAR OF STEEL FIBER REINFORCED CONCRETE (SFRC) SLENDER BEAMS M. Zarrinpour (1), J.-S. Cho (2) and S.-H.

More information