IMPACT of Computing in Science and Engineering最新文献

{"title":"VR Is Hot, but Why?","authors":"Jim X. Chen","doi":"10.1109/MCSE.2017.3151244","DOIUrl":"https://doi.org/10.1109/MCSE.2017.3151244","url":null,"abstract":"","PeriodicalId":100659,"journal":{"name":"IMPACT of Computing in Science and Engineering","volume":"64 1","pages":"4"},"PeriodicalIF":0.0,"publicationDate":"2017-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84352960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Strengthening Options in Improving the Lateral Responses of RC Frame Building","authors":"Darpan B. Doshi, J. Amin","doi":"10.22606/MCSE.2017.11004","DOIUrl":"https://doi.org/10.22606/MCSE.2017.11004","url":null,"abstract":"","PeriodicalId":100659,"journal":{"name":"IMPACT of Computing in Science and Engineering","volume":"38 1","pages":"44-57"},"PeriodicalIF":0.0,"publicationDate":"2017-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90559960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Properties of High-Strength Concrete Filled Steel Tube Columns","authors":"K. Tan, J. Nichols","doi":"10.22606/MCSE.2017.11005","DOIUrl":"https://doi.org/10.22606/MCSE.2017.11005","url":null,"abstract":"High Strength Concrete Filled Steel tubes (CFST) provide a common construction material in China. The purpose of this research was to determine the axial load properties for CFST subjected to concentric and eccentric loading in a series of experiments. The results show that the magnitude of experimentally measured compressive strength increases for the core concrete, due to the confinement from the steel that is proportional to the ratio of the area of steel to the area of concrete. If the slenderness ratio is kept constant the columns bearing capacity and maximum strain decreases as the eccentricity to radius ratio increases. Formulas to estimate the load bearing capacity for short and for slender eccentrically loaded columns were established from the data. The results have been compared statistically to other published results to show that a general linear form of the capacity equation is warranted for High Strength Concrete Filled Steel tubes.","PeriodicalId":100659,"journal":{"name":"IMPACT of Computing in Science and Engineering","volume":"43 1","pages":"58-77"},"PeriodicalIF":0.0,"publicationDate":"2017-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90732658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improved 2D Digital Image Correlation Method for Displacement and Deflection Measurements of Structural Beams","authors":"Renee C. Oats, Qingli Dai","doi":"10.22606/MCSE.2017.11002","DOIUrl":"https://doi.org/10.22606/MCSE.2017.11002","url":null,"abstract":"Digital imaging correlation (DIC) is an innovative approach for evaluating full-field mechanical deflections and time-dependent responses of structural members. An illustration of 2D DIC is shown for a rigid body translation of a small-scale steel beam. This paper presents improvements in deployment of 2D DIC for evaluating mechanical behaviors and responses of structural beam members. Improvement considerations regarding image resolution and speckle correlation design were emphasized for observing flexural behavior of steel and timber structural beams. A suggestive guideline for focal length configuration for observing displacements with 2D DIC and a contrasting speckle design emphasizing physical pixel sizing was presented. The DIC displacements were converted to physical scale measurements capturing within 1% error differences and subpixel accuracies when compared to traditional measuring devices and numerical modeling. DIC enabled detection of mid and full span deflection distribution in addition to time-dependent displacements advocating for DIC’s versatility for structural beam evaluations.","PeriodicalId":100659,"journal":{"name":"IMPACT of Computing in Science and Engineering","volume":"57 1","pages":"13-26"},"PeriodicalIF":0.0,"publicationDate":"2017-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78857430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Finite Element Analysis of Embankment with Soft Foundation Reinforced by Geogrids","authors":"Y. Zhang, Jianhui Zhang, Xu Zhang, Xiaodong Pan, H. Lei, Hao Cui","doi":"10.22606/MCSE.2017.11006","DOIUrl":"https://doi.org/10.22606/MCSE.2017.11006","url":null,"abstract":"In order to appraise the effect on which geotechnical reinforce soft soil foundation, based on a finite element model of reinforced embankment on soft ground, the stability of soft foundation with step loading during the construction of subgrade was studied, and the influencing factors of reinforced effect were analyzed. The results show that reinforced by geogrid the lateral displacement of the foundation can be controlled effectively with little effect on the vertical displacement; with the increase of the embankment fill, the tension of geogrid is gradually increasing, and its peak is gradually moving to the middle line of subgrade; multi-layers geogrid is better, the effect of 2 layers geogrid is significantly better than 1 layer, the effect of 4 layers is not obvious compared with 2 layers; the closer the reinforcing position is to the ground, the better the effect; with lateral displacement of slope side becoming smaller with increase of the reinforced modulus, the reinforcement effect can be improved.","PeriodicalId":100659,"journal":{"name":"IMPACT of Computing in Science and Engineering","volume":"39 1","pages":"78-83"},"PeriodicalIF":0.0,"publicationDate":"2017-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74614053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of the Rotation of Exterior Bridge Girders Due to Construction Loading Using TAEG Software","authors":"Ashiquzzaman, J. Schmeltz, A. Ibrahim, W. Lindquist, R. Hindi","doi":"10.22606/MCSE.2017.11001","DOIUrl":"https://doi.org/10.22606/MCSE.2017.11001","url":null,"abstract":"An investigation was performed to assess the performance of the Torsional Analysis of Exterior Girders (TAEG) software in predicting rotation of exterior bridge girders due to eccentric construction loads associated with placement of the concrete deck. TAEG is frequently used by bridge contractors and designers to assess exterior girder rotation and design restraint systems. The primary objective was to investigate whether the program yielded consistent and reliable rotation results as compared to field measurements taken during bridge deck placements. The TAEG software was used to analyze four bridge construction projects and the results were compared to field measurements and results obtained from a finite element analysis (FEA). A secondary objective was to investigate how the program utilizes different bridge and construction parameters. Based on rotations measured in the field and determined using the finite element modeling, the program did not consistently yield accurate results which varied significantly based on the specific bridge configuration and loading conditions. This inconsistency was most likely a result of differences between field conditions and ideal conditions used by the software for analysis.","PeriodicalId":100659,"journal":{"name":"IMPACT of Computing in Science and Engineering","volume":"60 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2017-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76204711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aprismatic Beams – A Mathematical Model and Application to a One Kilometre Arch Bridge","authors":"J. Nichols","doi":"10.22606/MCSE.2017.11003","DOIUrl":"https://doi.org/10.22606/MCSE.2017.11003","url":null,"abstract":"Design engineers, like all humans, are driven by Nash game theory to maximize return and hence simplify design. A determination of the optimal shape of beams to maximize strength and minimize costs has been an area of significant research since the 1970’s. However, real cost constraints in the market place usually see the selection of standard beams with invariant inertia tensor properties being used for most buildings throughout the world. The more challenging problem is the development of a beam of varying cross sectional area, this type of beam provides savings in terms of the quantity of steel and the mass of the ultimate building or bridge without degrading safety and can when manufactured in quantity to reduce costs. The purpose of the paper is to outline the mathematical development of aprismatic beams for everyday use in engineering to reduce material usage and hence human impact on the global environment. An example is provided using a 1 km arch bridge.","PeriodicalId":100659,"journal":{"name":"IMPACT of Computing in Science and Engineering","volume":"24 1","pages":"27-43"},"PeriodicalIF":0.0,"publicationDate":"2017-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73642845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent Advances in understanding Solar Wind-Mars Interaction with Global Magnetohydrodynamic (MHD) Modeling","authors":"Yingjuan Ma, C. Russell, A. Nagy, G. Tóth","doi":"10.1109/MCSE.2017.2581305","DOIUrl":"https://doi.org/10.1109/MCSE.2017.2581305","url":null,"abstract":"This paper presents recent progress in understanding the Solar Wind-Mars interaction using a sophisticated global magnetohydrodynamic (MHD) model. Mars has only localized crustal magnetic fields, so the solar wind plasma flow interacts directly with the Mars atmosphere/ionosphere system. Such an interaction generates an induced current in the ionosphere, modifies the magnetic field environment around Mars, and more importantly, causes the erosion of the Mars atmosphere. The non-uniformly distributed crustal magnetic field also plays an important role in the interaction process, which is modulated by planetary rotation. Recent advances in computing power allow the inclusion of the continuous crustal field rotation in the simulation with a time-dependent MHD model. Model results have been validated with observations from previous and ongoing Mars missions. The validated time-dependent MHD model is useful in quantifying the variation of ion loss rates with planet rotation and the internal response time scale of the Martian ionosphere.","PeriodicalId":100659,"journal":{"name":"IMPACT of Computing in Science and Engineering","volume":"18 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2017-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82344476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fostering Integrity in Research","authors":"ProTon Europe","doi":"10.17226/21896","DOIUrl":"https://doi.org/10.17226/21896","url":null,"abstract":"Of the many interventions that might be used to improve the responsible conduct of research, educational interventions are among the most frequently employed. However, educational interventions come in many forms and have proven of varying effectiveness. Recognition of this point has led to calls for the systematic evaluation of responsible conduct of research educational programs. In the present effort, the basic principles underlying evaluation of educational programs are discussed. Subsequently, the application of these principles in the evaluation of responsible conduct of research educational programs is described. It is concluded that systematic evaluation of educational programs not only allow for the appraisal of instructional effectiveness but also allows for progressive refinement of educational initiatives. Ethics in the sciences and engineering is of concern not only because of its impact on progress in the research enterprise but also because the work of scientists and engineers impacts the lives of many people. Recognition of this point has led to a number of initiatives intended to improve the ethical conduct of investigators (National Academy of Engineering, 2009; National Institute of Medicine, 2002; National Academy of Sciences, 1992). Although a number of interventions have been proposed as a basis for improving ethical conduct, for example development of ethical guidelines, open data access, and better mentoring, perhaps the most widely applied approach has been ethics education (Council of Graduate Schools, 2012)—an intervention often referred to as training in the responsible conduct of research (RCR). When one examines the available literature on RCR training, it is apparent that a wide variety of approaches have been employed. Some RCR courses are based on a self-paced, online, instructional framework (e.g. Braunschweiger and Goodman, 2007). Other RCR courses involve face-to-face instruction over longer periods of time using realistic exercises and cases (e.g. Kligyte, Marcy, Waples, Sevier, Godfrey, Mumford, and Hougen, 2008). Some RCR courses 1 As the committee launched this study, members realized that questions related to the effectiveness of Responsible Conduct of Research education programs and how they might be improved were an essential part of the study task. A significant amount of work has been done to explore these topics. This work has yielded important insights, but additional research is needed to strengthen the evidence base relevant to several key policy questions. The committee asked one of the leading researchers in this field, Michael D. Mumford, to prepare a review characterizing the current state of knowledge and describing future priorities and pathways for assessing and improving RCR education programs. The resulting review constitutes important source material for Chapter 10 of the report. The committee also believes that the review adds value to this report a as a standalone document, and is inclu","PeriodicalId":100659,"journal":{"name":"IMPACT of Computing in Science and Engineering","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73814689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Best of RESPECT, Part 1","authors":"T. Barnes, J. Payton, G. Thiruvathukal, K. Boyer, Jeffrey Forbes","doi":"10.1109/MCSE.2016.26","DOIUrl":"https://doi.org/10.1109/MCSE.2016.26","url":null,"abstract":"The guest editors introduce best papers on broadening participation in computing from the RESPECT'15 conference. The five articles presented here are part one of a two-part series representing research on broadening participation in computing at all levels of education: from K-12 schools through graduate school, with a focus on diversity with regard to gender, race, and ethnicity.","PeriodicalId":100659,"journal":{"name":"IMPACT of Computing in Science and Engineering","volume":"41 1","pages":"6-8"},"PeriodicalIF":0.0,"publicationDate":"2016-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88903257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}