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IMPACTS OF CONSTRUCTION RISKS ON COSTS IN LEED-CERTIFIED PROJECTS

Journal of Green Building 2016年第4期11卷 163-181页

作者： Asli Pelin Gurgun David Arditi Pablo Casals Vilar Department of Civil Engineering Yildiz Technical UniversityDavutpasa Campus34220IstanbulTurkey. Construction Engineering and management program Illinois Institute of TechnologyDepartment of CivilArchitectural and Environmental EngineeringAlumni Memorial HallRoom 229ChicagoIL 60616USA. Construction Engineering and management program Illinois Institute of TechnologyDepartment of CivilArchitectural and Environmental Engineering IL60616USA

Construction according to green principles rather than traditional methods poses a new set of risks to project *** risks should be appropriately identified and managed in order to prevent cost *** study aims to identify construction risks and their cost impacts in LEED-certified *** this purpose,thirteen risks were identified based on a literature survey and were categorized under four groups of issues:(i)consultant,contractor and subcon-tractor,(ii)material,product and process,(iii)legal,regulatory and contractual,and(iv)financial and economic.A survey was then administered to green build-ing design and construction practitioners in the *** assess the likelihood of occurrence of these risks and their respective impacts on project *** to the survey results,the risks associated with consultant,contractor and subcon-tractor issues have the highest expected impact on *** top five risk factors were determined as(1)contractors and subcontractors agreeing to standards that are not within their expertise and competence,(2)high cost of certification,(3)lack of expertise in new products/technologies,(4)doubts about the long-term viability and performance of new and untested products,materials and tech-nologies,and(5)inadequate definition of project parties’contractual roles and *** the cost impact of risks is of great value to owners and designers and *** the risks associated with LEED-certified projects and their cost impacts can be of benefit to all practitioners.

关键词： green construction LEED certification risk cost green risk management

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Physical Examination Data Based Cataract Risk Analysis

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Journal of Systems Science and Systems Engineering 2021年第2期30卷 198-214页

作者： Jianqiao Hao Yongbo Xiao Shudi Du Research Center for Contemporary management School of Economics and ManagementTsinghua UniversityBeijing 100084China

Cataract is a very common eye disease and the most significant cause of *** consideration of its burden on society,the focus was put on testing the risk factors of cataract and building robust machine learning models in which these factors can be utilized to predict the risk of *** data used herein was collected by a Chinese physical examination center located in *** contains more than 120,000 examinees and about 500 physical examination ***,association rules were adopted to filter 39 abnormalities which are more likely to incur the risk of cataract,and the significance of these abnormalities was tested with univariate analysis and multivariate *** test results indicate that age,diabetes,refractive error,retinal arteriosclerosis,thyroid nodules,and incomplete mammary gland degeneration significantly increase the possibility of *** machine learning models were compared in terms of their performance in predicting the risk of cataract based on these six factors,among which the logistic regression model and the decision-tree based ensemble methods outperform *** test set A U C of these models can reach 0.84.

关键词： Cataract risk factors physical examination data machine learning

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Depth to the apparent redox potential discontinuity(aRPD)as a parameter of interest in marine benthic habitat quality models

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International Journal of Sediment Research 2018年第2期33卷 149-156页

作者： Travis G.Gerwing Kieran Cox Alyssa M.Allen Gerwing Charmaine N.Carr-Harris Sarah E.Dudas Francis Juanes Ecosystem Science and management program University of Northern British Columbia Department of Biology University of Victoria Skeena Fisheries Commission 4. Department of Biology Vancouver Island University

The usefulness of the apparent redox potential discontinuity(aRPD) in assessments of marine benthic habitat quality was explored at two intertidal mudflats along the north Pacific coast of Canada. Two transects were established at each intertidal site, with three sediment biogeochemistry cores collected from each transect four times over the summer of 2016. Measurements of the sediment pore water dissolved oxygen(DO) content and redox(Eh) conditions were taken at the surface of the core(measured vertically), as well as at increasing depths(1 cm between readings) into the sediment(measured horizontally through predrilled holes in the biogeochemistry corer). While oxic, anoxic, oxidized, and reduced sediment pore water was observed above and below the aRPD, in general, sediment above the aRPD had higher DO content, and higher Eh values than sediment below the aRPD. Therefore, the aRPD depth can be used as a relative indicator of sediment pore water DO and Eh conditions: sediment with a deeper aRPD depth has more available DO, and the pore water has higher Eh values(more oxidized or less reduced) than sediment with a shallower aRPD depth. As such, the aRPD depth is a useful parameter to include in models that assess the quality of marine benthic habitats.

关键词： Anoxia Apparent redox potential discontinuity(aRPD) Dissolved oxygen Habitat quality Hypoxia Intertidal Marine benthos Sediment pore water

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Expression of matrix metalloproteinases 2 and 9 in human gastric cancer and superficial gastritis

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World Journal of Gastroenterology 2010年第12期16卷 1500-1505页

作者： Clara Luz Sampieri Sol de la Pea Mariana Ochoa-Lara Roberto Zenteno-Cuevas Kenneth León-Córdoba Institute of Public Health Veracruzana University Biomedical Sciences doctoral program Institute of Health SciencesVeracruzana University Dr.Miguel Dorantes Mesa Hospital

AIM:To assess expression of matrix metalloproteinases 2(MMP2)and MMP9 in gastric cancer,superficial gastritis and normal mucosa,and to measure metalloproteinase ***:MMP2 and MMP9 mRNA expression was determined by quantitative real-time polymerase chain *** was carried out using three different *** were analyzed by quantitative gelatin zymography(qGZ).RESULTS:18S ribosomal RNA(18SRNA)was very highly expressed,while hypoxanthine ribosyltransferase-1(HPRT-1)was moderately ***2 was highly expressed,while MMP9 was not detected or lowly expressed in normal tissues,moderately or highly expressed in gastritis and highly expressed in *** expression of 18SRNA and HPRT-1 showed no significant *** differences in MMP2 and MMP9 were found between cancer and normal tissue,but not between gastritis and normal *** quantification of MMP9 echoed this pattern,but differential expression of MMP2 proved *** by qGZ indicated significant differences between cancer and normal tissue in MMP-2,total MMP-9,250 and 110 kDa ***:MMP9 expression is enhanced in gastric cancer compared to normal mucosa;interpretation of differential expression of MMP2 is difficult to establish.

关键词： Gastric cancer Superficial gastritis Matrix metalloproteinases Quantitative real-time polymerase chain reaction Quantitative zymography

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Benefits and Challenges of Resilience and Vulnerability for Disaster Risk management

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International Journal of Disaster Risk Science 2014年第1期5卷 3-20页

作者： Alexander Fekete Gabriele Hufschmidt Sylvia Kruse Risk and Crisis management Section Cologne University of Applied Sciences50679 CologneGermany Department of Geography Master Program Disaster Management and Risk GovernanceUniversity of Bonn53115 BonnGermany Economics and Social Science Swiss Federal Institute for ForestSnowand Landscape Research WSL8903 BirmensdorfSwitzerland

This article addresses resilience and vulnerability as two prominent concepts within disaster risk science. The authors provide an overview of current uses and bene?ts of and challenges to resilience and vulnerability concepts for disaster risk management(DRM). The article summarizes the evolution of these concepts and of attempts to de?ne them precisely,and addresses the potential bene?ts of conceptual *** usage and conception of resilience and vulnerability within a selection of strategies and legislations in DRM are compared. Complementing this analysis of disaster risk research and management practice, a survey identi?es some of the bene?ts of and challenges to the concepts of resilience and vulnerability as seen by a peer-community. Synthesizing the three approaches, we conclude that a certain conceptual and methodological ‘‘haze’’ prevails, which hampers the transfer of information and ?ndings within disaster risk science, from science to practice, and vice versa. But this vagueness offers opportunities for communication between disaster risk science, policy, and practice. Overall, evaluations of the resilience and vulnerability concepts are lacking, which demands the development of criteria to identify and assess the challenges to and bene?ts of resilience and vulnerability for DRM.

关键词： Boundary object Disaster risk Policy-science-practice interaction Risk assessment Resilience Vulnerability

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Scheduling optimization of task allocation in integrated manufacturing system based on task decomposition

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Journal of Systems Engineering and Electronics 2016年第2期27卷 422-433页

作者： Aijun Liu Michele Pfund John Fowler Department of management Engineering School of Economics & Management Xidian University Department of Supply Chain management W.P. Carey School of Business Arizona State University

How to deal with the collaboration between task decomposition and task scheduling is the key problem of the integrated manufacturing system for complex products. With the development of manufacturing technology, we can probe a new way to solve this problem. Firstly, a new method for task granularity quantitative analysis is put forward, which can precisely evaluate the task granularity of complex product cooperation workflow in the integrated manufacturing system, on the above basis; this method is used to guide the coarse-grained task decomposition and recombine the subtasks with low cohesion coefficient. Then, a multi-objective optimieation model and an algorithm are set up for the scheduling optimization of task scheduling. Finally, the application feasibility of the model and algorithm is ultimately validated through an application case study.

关键词： integrated manufacturing system optimization task decomposition task scheduling

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Comparison of lipid extraction methods for the microalgae Acutodesmus obliquus

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International Journal of Agricultural and Biological Engineering 2018年第5期11卷 211-217页

作者： Diana Ximena Hurtado Claudia Lorena Garzón-Castro Jhon Cortés-Romero Edisson Tello Camacho Bioprospecting and CAPSAB Research Groups Faculty of EngineeringUniversidad de La SabanaCundinamarca 53753Colombia Biosciences doctoral program Faculty of EngineeringUniversidad de La SabanaCundinamarca 53753Colombia Department of Electrical and Electronic Engineering Universidad Nacional de ColombiaBogotá53753Colombia

Microalgae are widely used in the pharmaceutical and energy industries,therefore the conditions for their cultivation and extraction methods play an important role in the profiling and acquisition of *** efficiency of lipid extraction from microalgae has attracted great interest from industry because of the wide variety of lipids and amounts that can be *** obliquus(Scenedesmus obliquus UTEX 393)was used in this *** was cultivated in Bold 3N medium modified with 75%nitrogen at 25℃,pH 6.8,125 r/min and a photoperiod of 18/6 h and illuminated with white light provided by a Light-Emitting Diode Surface Mount Device extensions(LED SMD)with an intensity of 1200μE/(m^(2)·s).The cells were stained with the Red Nile(RN)technique to indicate lipid *** extraction methods were compared,classical,microwave(MW),Soxhlet,and ultrasound(US),using the same solvent proportions(hexane:chloroform:methanol=1:2:3).All samples were analyzed with Fourier Transform Infrared Spectroscopy(FTIR)and Gas Chromatography coupled to Mass Spectrometry(GC-MS).The results showed:1)lipid production detected by RN was consistent with microalgal growth;2)the MW technique was the best extraction method,according to the statistical analysis through Randomized Complete Block(RCB)design and performance of 4.6%;and 3)the presence of saturated and unsaturated acids was indicated by FTIR ***-MS was able to identify palmitic and linoleic acids as the likely major constituents of the sample.

关键词： Acutodesmus obliquus lipid extraction trans-esterification Red Nile(RN)

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What factors explain anger and mental health during the COVID-19 pandemic? The case of Israeli society

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World Journal of Psychiatry 2021年第10期11卷 864-875页

作者： Orna Braun-Lewensohn Sarah Abu-Kaf Tehila Kalagy Department of Interdisciplinary Studies Conflict Management&Resolution ProgramBen-Gurion University of the NegevBeer Sheva 8410501IsraelIsrael Department of Public Policy and management Ben-Gurion University of the NegevBeer Sheva 8410501IsraelIsrael

BACKGROUND What factors affected the levels of anger and emotional distress experienced during the coronavirus disease 2019(COVID-19)pandemic?We hypothesized that(1)sociodemographic factors and resiliency factors would partially explain psychological distress and anger,with stronger resiliency associated with lower levels of distress and anger;(2)women would report more trust in national leadership,as well as more psychological problems;(3)individuals of low socioeconomic status would report less resiliency,less trust in national leadership,and greater distress than individuals of higher socioeconomic status;and(4)hope would mediate the relationships between the other resiliency factors and both anger and *** To explore whether community resilience,hope,and trust in leaders were associated with lower levels of anger and emotional distress during the COVID-19 *** For this observational study,data were gathered in Israel during the second wave of the COVID-19 pandemic,just before the Jewish New Year(mid-September 2020),as a second lockdown was *** were gathered from 636 Israeli adults,who were recruited by the Midgam research *** participants filled out self-reported questionnaires including one on state anger,the Brief Symptom Inventory as a measure of mental-health problems(i.e.,somatization,depression,and anxiety),and questionnaires about trust in the state’s leaders,community resilience(CCRAM),and hope as measures of coping resources and resiliency.t-tests were used to explore differences between men and women and between those of lower and higher socioeconomic status.A hierarchical multiple regression analysis was then used to examine whether and how the sociodemographic and resiliency variables explained state anger and psychological distress.A Sobel test was used to evaluate the possible effects of hope on community resilience and trust in leadership in the context of both distress and *** Our results revealed di

关键词： Community resilience Hope Trust in government Anger Mental health Pandemic

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Wrinkle-crease interaction behavior simulation of a rectangular membrane under shearing

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Acta Mechanica Sinica 2011年第4期27卷 550-558页

作者： C.-G.Wang.H.-F.Tan.X.-D.He Center for Composite Materials,Harbin Institute of Technology,150080 Harbin,China Post-doctoral Research Center in Material Science and Engineering,Harbin Institute of Technology,150001 Harbin,China Center for Composite Materials Harbin Institute of Technology Harbin China Post-doctoral Research Center in Material Science and Engineering Harbin Institute of Technology Harbin China

Wrinkling analysis of a rectangular membrane with a single crease under shearing is performed to understand the wrinkle-crease interaction behaviors. The crease is considered by introducing the residual stresses from creasing and the effective modulus into the baseline configuration with assumed circular cross-sectional crease geometry. The wrinkling analysis of the creased membrane is then performed by using the direct perturb-force （DP） simulation technique which is based on our modified displacement components （MDC） method. Results reveal that the crease may influence the stress transfer path in the membrane and further change the wrinkling direction. The crease appears to improve the bending stiffness of the membrane which has an effective resistance on the wrinkling evolution. The effects of the crease orientation on wrinkle-crease interaction are studied toward the end of this paper. The results show that the wrinkling amplitude, wavelength, and direction increase as the crease orientation increases, and the wrinkling number decreases with the increasing crease orientation. These results will be of great benefit to the analysis and the control of the wrinkles in the membrane structures.

关键词： Membrane structure - Wrinkle-crease interac-tion Membrane wrinkling Creased membrane

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Urban green resilience: Experience from post-industrial cities in Poland

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Geoscience Frontiers 2023年第4期14卷 160-172页

作者： Tomasz Starczewski Krzysztof Rogatka Anita Kukulska-Kozie Tomasz Noszczyk Katarzyna Cegielska Nicolaus Copernicus University Doctoral School of Social Sciences1 Bojarskiego Street87-100 TorunPoland Nicolaus Copernicus University Faculty of Earth Sciences and Spatial ManagementDepartment of Urban and Regional Development Studies1 Lwowska Street87-100 TorunPoland University of Agriculture in Krakow Faculty of Environmental Engineering and Land SurveyingDepartment of Land Management and Landscape Architecture21 Mickiewicza Avenue31-120 KrakowPoland

De-industrialisation triggered economic,spatial and environmental changes in ***,this study identifies whether there has been a reorientation of spatial development in post-industrial cities towards the creation of green *** aim of the study is to analyse and evaluate the transformation of green spaces in 32 major cities in Poland,including 12 post-industrial *** sources were vector land cover data models from the Urban Atlas for 2006 and 2018,administrative boundaries from the National Boundary Register and building layers from the Topographic Objects *** research procedure was carried out using the GIS environment,through spatial analysis,geoprocessing algorithms,and spatial *** results have shown that post-industrial cities do not develop their urban resi-lience based on the expansion of green spaces and,consequently,do not build green urban *** addition,the research has proven that the greatest loss of green spaces is noticeable in parts of post-industrial cities with medium and high development intensity,where there is an intensification of con-struction *** dominant direction of the transformation of green spaces has been the conversion of agricultural areas into green spaces(87.79%).In contrast,the main direction of loss in green space has been the creation of new industrial units(24.80%)and the expansion of the urban fabric(23.53%).The article is original due to the fact that there is a gap in the literature regarding the study of green spaces in post-industrial cities with regard to the concept of green urban resilience.

关键词： Green spaces Spatial analysis Land cover transformation Development Anthropopressure Degradation

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