WorldWideScience

Sample records for civil engineering construction

  1. Civil Engineering Construction of Underground Works

    CERN Document Server

    Rammer, H

    1999-01-01

    For the first time at CERN, new shafts and caverns will be excavated inside a surface building. The LHC civil engineering construction for the ATLAS experiment has been designed such that the experimental hall will be completed to the extent that it can provide a secure, weatherproof and sound insulated covering to the shaft excavation area. The construction of the two access shafts and the experimental cavern will follow and will be carried out inside the building. This unconventional method of working allows the excavation of the Molasse rock in the dry, which is essential for this type of rock, and ensures reduced environmental pollution by noise and dust. The paper will present the technical infrastructure required for this particular construction method, explain its advantages and disadvantages, and compare it with a conventional method of underground excavations to be used on the same work site for the construction of the service cavern.

  2. Identification & Control of Special Processes in Civil Engineering Construction

    Institute of Scientific and Technical Information of China (English)

    张怡

    2009-01-01

    @@ A lot ot special processes exist in operation of construction enterprises. Construction enterprises are categorized as of high risks in certification under the quality management system. Taking civil engineering construction of building projects as an example, the writer analyzes how construction enterprises shall identify and control the special processes.

  3. Materials for construction and civil engineering science, processing, and design

    CERN Document Server

    Margarido, Fernanda

    2015-01-01

    This expansive volume presents the essential topics related to construction materials composition and their practical application in structures and civil installations. The book's diverse slate of expert authors assemble invaluable case examples and performance data on the most important groups of materials used in construction, highlighting aspects such as nomenclature, the properties, the manufacturing processes, the selection criteria, the products/applications, the life cycle and recyclability, and the normalization. Civil Engineering Materials: Science, Processing, and Design is ideal for practicing architects; civil, construction, and structural engineers, and serves as a comprehensive reference for students of these disciplines. This book also: ·       Provides a substantial and detailed overview of traditional materials used in structures and civil infrastructure ·       Discusses properties of natural and synthetic materials in construction and materials' manufacturing processes ·  �...

  4. Construction Site Environmental Impact in Civil Engineering Education

    Science.gov (United States)

    Teixeira, Jose M. Cardoso

    2005-01-01

    The environmental impact of construction activity has gained increasing importance in the last few years and become a key subject for civil engineering education. A survey of Portuguese higher education institutions shows that concern with this topic is mostly directed at the impact of large construction projects and especially focused on their…

  5. Evolutionary algorithms and metaheuristics in civil engineering and Construction management

    CERN Document Server

    Greiner, David

    2015-01-01

    This book focuses on civil and structural engineering and construction management applications. The contributions constitute modified, extended and improved versions of research presented at the  minisymposium organized by the editors at the ECCOMAS conference on this topic in Barcelona 2014.

  6. LHC Civil Engineering Construction Contracts Cost Monitoring and Budget Forecasting

    CERN Document Server

    Skelton, K

    2000-01-01

    The Civil Engineering project for the LHC is estimated at 350 MCHF, of which about 316 MCHF is for the construction contracts. These contracts are based on a system of remeasurement whereby the consultant estimates the quantities required for the construction of each structure and the contractor commits himself to the unit price, which define the initial tender price. There are many factors that affect the final price for these contracts, from increases or decreases in quantities of the estimated amounts in the original bill of quantities to variations to the contract. This paper will look at how these factors change costs at the individual level of a structure to the overall costs of the contract. It will look at how the Civil Engineering Group monitors these changes to calculate cash flows and final costs and how this information is used as a basis for budget forecasts.

  7. Proposal for the increase of the contract amounts for LHC civil engineering construction and civil engineering consultancy contracts

    CERN Document Server

    2001-01-01

    This document concerns the increase of the contract amounts for LHC civil engineering construction contracts and civil engineering consultancy contracts. The Finance Committee is invited to agree to the increase of the contract amounts with: - the joint venture TEERAG-ASDAG (AT), C. BARESEL (DE) and LOCHER (CH) for civil engineering construction, package 1, for a revised total amount of 91 500 000 Swiss francs, subject to revision; - the joint venture EDF (FR) and KNIGHT&PIESOLD (GB) for the provision of civil engineering consultancy services, package 1, for a revised total amount of 14 400 000 Swiss francs, subject to revision; - the joint venture TAYLOR WOODROW (GB), AMEC (GB) and SPIE BATIGNOLLES (FR) for civil engineering construction, package 3a, for a revised total amount of 118 000 000 Swiss francs, subject to revision; - the joint venture BROWN&ROOT (GB), INTECSA (ES) and HIDROTECNICA (PT) for the provision of civil engineering consultancy services, package 3, for a revised total amount of 14 ...

  8. Increase of the contract amounts for LHC civil-engineering construction and civil-engineering consultancy contracts

    CERN Document Server

    2005-01-01

    This document concerns the increase of the contract amounts for LHC civil-engineering construction and civil-engineering consultancy, Package 2. The Finance Committee is invited to take note of the increase of the contract amounts with: - the joint venture DRAGADOS (ES) and SELI (IT) for civil-engineering construction, LHC Package 2, for an amount of 28 087 000 Swiss francs, subject to revision, in the amount previously announced to Finance Committee (CERN/FC/4516) of 132 200 000 Swiss francs, subject to revision, bringing the total to a maximum amount of 160 287 000 Swiss francs, subject to revision. - the joint venture GIBB (GB), GEOCONSULT (AT) and SGI (CH) for the provision of civil-engineering consultancy services, LHC Package 2, for an amount of 900 000 Swiss francs, subject to revision, in the amount previously announced to Finance Committee of 13 800 000 Swiss francs, subject to revision, bringing the total to a maximum amount of 14 700 000 Swiss francs, subject to revision

  9. Design of a System for Monitoring Reliability of Structures and Constructions in Civil Engineering

    Directory of Open Access Journals (Sweden)

    Tomislav S. Igić

    2011-07-01

    Full Text Available Monitoring of civil engineering structures and constructions requires techniques which can produce high precision and accuracy, reliable measurements and fast processing speed. The development of information and communication systems as well as of microprocessor controllers has enabled a creation of monitoring systems that can be used for tracking reliability of structures and constructions in civil engineering, with described key features. This paper describes in detail the architecture of the Civil Engineering Structures Reliability Monitoring (CERM system. The system has been designed for the purposes of the Technical Mechanics and Theory of Constructions Department at the Faculty of Civil Engineering and Architecture, University of Nis. Unlike general commercial monitoring systems, the CERM system has been specially designed for the purpose of reliability monitoring, and its potential will be further exploited in this paper. It is based on usage of universal microprocessor controllers Integraf of series 10X, along with specially designed software package. This system provides real time acquisition of measurements for observed civil engineering structures and analysis of received values based on developed mathematical models.

  10. B 150 civil engineering futures

    DEFF Research Database (Denmark)

    Foreword B150 –Civil Engineering Futures consists of interviews made, articles written, and projects presented in connection with the 150th anniversary celebrations of the study of civil engineering in Denmark. Instead of a historical retrospect, it was decided to look into the future. What...... challenges will the next 150 years bring civil engineers? Researchers and lecturers at DTU’s Department of Civil Engineering (known as DTU Byg) suggested possible events, and we also consulted civil engineers and their business partners in the building industry. In this way, a programme was put together...... theme in twentieth century architecture. Together, civil engineer Peter Rice and architect Ian Ritchie created a paradigm shift with their revolutionary ideas for glass facades supported by cables. Glued and bolted constructions made entirely of glass are now a reality in small-scale projects, yet...

  11. Job Prospects for Civil Engineers.

    Science.gov (United States)

    Basta, Nicholas

    1985-01-01

    Government programs and renewed industrial activity have combined with stable enrollments to create bright job prospects for civil engineers. Areas with good opportunities include highway reconstruction and rehabilitation, water-resource management, and new factory construction. The subspecialty of structural engineering has a growing need in…

  12. Ecological Engineering and Civil Engineering works

    OpenAIRE

    Van Bohemen, H.D.

    2004-01-01

    This thesis provides a survey of the research results of the relationship between on the one hand the construction, management and maintenance of civil engineering works, and on the other hand the environment, nature and landscape, with the main focus on motorways and coastal protection. The growing number and increase in size of civil engineering works and the growing need for protection measures of the sandy coasts have led to an ever increasing risk of adverse effects on the nature and lan...

  13. Geometric procedures for civil engineers

    CERN Document Server

    Tonias, Elias C

    2016-01-01

    This book provides a multitude of geometric constructions usually encountered in civil engineering and surveying practice.  A detailed geometric solution is provided to each construction as well as a step-by-step set of programming instructions for incorporation into a computing system. The volume is comprised of 12 chapters and appendices that may be grouped in three major parts: the first is intended for those who love geometry for its own sake and its evolution through the ages, in general, and, more specifically, with the introduction of the computer. The second section addresses geometric features used in the book and provides support procedures used by the constructions presented. The remaining chapters and the appendices contain the various constructions. The volume is ideal for engineering practitioners in civil and construction engineering and allied areas.

  14. Ecological Engineering and Civil Engineering works

    NARCIS (Netherlands)

    Van Bohemen, H.D.

    2004-01-01

    This thesis provides a survey of the research results of the relationship between on the one hand the construction, management and maintenance of civil engineering works, and on the other hand the environment, nature and landscape, with the main focus on motorways and coastal protection. The growing

  15. Inquiry on civil construction technology points of building engineering%建筑工程土建施工技术要点探究

    Institute of Scientific and Technical Information of China (English)

    赵成学

    2015-01-01

    依照建筑工程土建的施工要求,简单的总结了建筑工程土建施工的关键技术要点,主要包括混凝土施工、钢筋施工、砖砌筑施工、防水施工、模板施工五方面内容,以期达到提升建筑工程土建施工技术性能的目的。%According to civil construction demands of building engineering,the paper briefly summarizes critical civil construction technology points of building engineering,which mainly includes concrete construction,steel construction,brick masonry construction,waterproofing construc-tion and template construction,with a view to achieve the goal of improving civil construction technology performance of building engineering.

  16. Environmental Ethics and Civil Engineering.

    Science.gov (United States)

    Vesilind, P. Aarne

    1987-01-01

    Traces the development of the civil engineering code of ethics. Points out that the code does have an enforceable provision that addresses the engineer's responsibility toward the environment. Suggests revisions to the code to accommodate the environmental impacts of civil engineering. (TW)

  17. Civil Engineering Technology Needs Assessment.

    Science.gov (United States)

    Oakland Community Coll., Farmington, MI. Office of Institutional Planning and Analysis.

    In 1991, a study was conducted by Oakland Community College (OCC) to evaluate the need for a proposed Civil Engineering Technology program. An initial examination of the literature focused on industry needs and the job market for civil engineering technicians. In order to gather information on local area employers' hiring practices and needs, a…

  18. Civil engineering experiences in Portugal

    OpenAIRE

    Aguiar, J. L. Barroso de

    2009-01-01

    The good cooperation established between Universities, Laboratory National of Civil Engineering and private companies made possible the execution of a considerable number of civil engineering works by Portugueses, inside and outside the country. Some good examples are presented in this paper.

  19. 谈土建工程项目现场施工管理%On the On-site Construction Management of Civil Engineering

    Institute of Scientific and Technical Information of China (English)

    郭宜旭

    2014-01-01

    The on-site construction management of civil engineering is an important content of the construction of building engineering. This paper describes several aspects of on-site construction management, and puts forward strategies to improve and strengthen on-site construction management.%土建工程项目的现场施工管理是建筑工程建设的重要内容。文章主要阐述了施工现场管理的几个方面,并在此基础上提出改进和加强施工现场管理的策略。

  20. Evaluation of environmental management resources (ISO 14001) at civil engineering construction worksites: a case study of the community of Madrid.

    Science.gov (United States)

    Rodríguez, Gracia; Alegre, Francisco Javier; Martínez, Germán

    2011-07-01

    In recent years, significant advances have been made in business organization and management. The growing demands of clients as well as the globalization of world markets are among the many factors that have led to the establishment of systems of quality control and environmental management as a competitive strategy for businesses. When compared to other professional sectors, the construction sector has been slower to respond to environmental problems and to adopt Environmental Management Systems (EMS). In the world today the ISO 14001 standard is currently the main frame of reference used by construction companies to implement this type of management system. This article presents the results of a general study regarding the evaluation of the application of the ISO 14001 standard at civil engineering construction worksites in the Community of Madrid (Spain), specifically pertaining to requirement 4.4.1, Resources, roles, responsibilities, and authority. According to requirement 4.4.1, company executives should appoint people responsible for implementing the EMS and also specify their responsibilities and functions. The personnel designated for supervising environmental work should also have sufficient authority to establish and maintain the EMS. The results obtained were the following: - EMS supervisors did not generally possess adequate training and solid experience in construction work and in the environment. Furthermore, supervisors were usually forced to combine their environmental work with other tasks, which made their job even more difficult. - Generally speaking, supervisors were not given sufficient authority and autonomy because productivity at the construction site had priority over environmental management. This was due to the fact that the company management did not have a respectful attitude toward the environment, nor was the management actively involved in the establishment of the EMS. - Insufficient resources were allocated to the Environmental

  1. Evaluation of environmental management resources (ISO 14001) at civil engineering construction worksites: a case study of the community of Madrid.

    Science.gov (United States)

    Rodríguez, Gracia; Alegre, Francisco Javier; Martínez, Germán

    2011-07-01

    In recent years, significant advances have been made in business organization and management. The growing demands of clients as well as the globalization of world markets are among the many factors that have led to the establishment of systems of quality control and environmental management as a competitive strategy for businesses. When compared to other professional sectors, the construction sector has been slower to respond to environmental problems and to adopt Environmental Management Systems (EMS). In the world today the ISO 14001 standard is currently the main frame of reference used by construction companies to implement this type of management system. This article presents the results of a general study regarding the evaluation of the application of the ISO 14001 standard at civil engineering construction worksites in the Community of Madrid (Spain), specifically pertaining to requirement 4.4.1, Resources, roles, responsibilities, and authority. According to requirement 4.4.1, company executives should appoint people responsible for implementing the EMS and also specify their responsibilities and functions. The personnel designated for supervising environmental work should also have sufficient authority to establish and maintain the EMS. The results obtained were the following: - EMS supervisors did not generally possess adequate training and solid experience in construction work and in the environment. Furthermore, supervisors were usually forced to combine their environmental work with other tasks, which made their job even more difficult. - Generally speaking, supervisors were not given sufficient authority and autonomy because productivity at the construction site had priority over environmental management. This was due to the fact that the company management did not have a respectful attitude toward the environment, nor was the management actively involved in the establishment of the EMS. - Insufficient resources were allocated to the Environmental

  2. Teaching Mathematics to Civil Engineers

    Science.gov (United States)

    Sharp, J. J.; Moore, E.

    1977-01-01

    This paper outlines a technique for teaching a rigorous course in calculus and differential equations which stresses applicability of the mathematics to problems in civil engineering. The method involves integration of subject matter and team teaching. (SD)

  3. On management and control over construction progress in civil engineering programs%土建工程的施工进度管理和控制

    Institute of Scientific and Technical Information of China (English)

    刘斌

    2015-01-01

    The paper analyzes the factors influencing the construction progress management of civil engineering projects,and points out some sug-gestions for the preparation before the construction,compilation progress plan,and improvement of management regulations,so as to promote the construction progress management level of the civil engineering projects.%分析了影响土建工程施工进度管理的各项因素,针对施工进度管理中存在的问题,提出了做好开工前的准备工作、编制进度计划、完善项目管理法规体系等建议,以有效提高土建工程施工进度管理水平。

  4. ATLAS Civil Engineering Point 1

    CERN Multimedia

    Jean-Claude Vialis

    1999-01-01

    ATLAS Civil Engineering - Point 1 In the film you can see various stages of construction in Point 1: that is the experiment zone for ATLAS experimentation. One part of the video is filmed on the surface of Point 1. Therefore you can get the view of the hall SX 1 and the cranes. Cranes are located close to the ridge of the hall roof. The film gives you the view of the hall that covers the caps and the wells to underground cavern where the experiment will be implemented. The machinery for excavation lifts and cranes as well as the stock areas can also be seen. There are iron mounting and concrete works too

  5. Space civil engineering - A new discipline

    Science.gov (United States)

    Sadeh, Willy Z.; Criswell, Marvin E.

    1991-01-01

    Space Civil Engineering is an emerging engineering discipline that focuses on extending and expanding the Civil Engineering know-how and practice to the development and maintenance of infrastructure on celestial bodies. Space Civil Engineering is presently being developed as a new discipline within the Department of Civil Engineering at Colorado State University under a recently established NASA Space Grant College Program. Academic programs geared toward creating Space Civil Engineering Options at both undergraduate and graduate levels are being formulated. Basic ideas and concepts of the curriculum in the Space Civil Engineering Option at both undergraduate and graduate levels are presented. The role of Space Civil Engineering in the Space Program is discussed.

  6. Communication Needs of Thai Civil Engineering Students

    Science.gov (United States)

    Kaewpet, Chamnong

    2009-01-01

    This article reports on an examination of the communication needs of a group of Thai civil engineering students. Twenty-five stakeholders helped identify the communication needs of the students by participating in individual interviews. These included employers, civil engineers, civil engineering lecturers, ex-civil engineering students of the…

  7. Effects of sea water environment on glass fiber reinforced plastic materials used for marine civil engineering constructions

    International Nuclear Information System (INIS)

    Highlights: • Seawater environment over composite material that are suitable for civil applications. • Seawater intake is linked to tensile and flexural strength degradation in GFC. • Fatigue performance of glass composites is similar in seawater environment than in air. - Abstract: Glass fiber composites (GFRP) are common in civil engineering projects, but not in marine structures. One reason is that seawater effects degrade GFRP composites mechanical properties and interlaminar shear strength (ILSS). Here, influence of seawater environment is studied to determine the best composite materials for marine civil engineer applications, studying the influence of several factors in their mechanical properties. This is to determine safety factors to use in the design of structural calculations for marine applications. Glass/epoxy composites are the safest materials to use in marine civil structures as mechanical properties degradation becomes stabilized after moisture saturation level. UV and water cyclic analysis must be done to determine affection to transversal strength. Only vinylester GFRP has problems with biodegradation. GFRP fatigue performance is not influenced by seawater environment

  8. Artificial Intelligence in Civil Engineering

    Directory of Open Access Journals (Sweden)

    Pengzhen Lu

    2012-01-01

    Full Text Available Artificial intelligence is a branch of computer science, involved in the research, design, and application of intelligent computer. Traditional methods for modeling and optimizing complex structure systems require huge amounts of computing resources, and artificial-intelligence-based solutions can often provide valuable alternatives for efficiently solving problems in the civil engineering. This paper summarizes recently developed methods and theories in the developing direction for applications of artificial intelligence in civil engineering, including evolutionary computation, neural networks, fuzzy systems, expert system, reasoning, classification, and learning, as well as others like chaos theory, cuckoo search, firefly algorithm, knowledge-based engineering, and simulated annealing. The main research trends are also pointed out in the end. The paper provides an overview of the advances of artificial intelligence applied in civil engineering.

  9. Space Civil Engineering option - A progress report

    Science.gov (United States)

    Criswell, Marvin E.; Sadeh, Willy Z.

    1992-01-01

    Space Civil Engineering is an emerging engineering discipline that focuses on extending and expanding Civil Engineering to the development, operation, and maintenance of infrastructures on celestial bodies. Space Civil Engineering is presently being developed as a new discipline within the Department of Civil Engineering at Colorado State University and with support of the NASA Space Grant College Program. Academic programs geared toward creating Space Civil Engineering Options at both undergraduate and graduate levels are being formulated. Basic ideas and concepts and the current status of the curriculum in the Space Civil Engineering Option primarily at the undergraduate level are presented.

  10. CIVIL ENGINEERS' ROLES IN PUBLIC WORKS

    Science.gov (United States)

    Murata, Teruaki

    Recently, the public interests are becoming high in the way of executing public works and the future direction of infrastructure development, which raises nation-wide discussion on these issues. How should we make our country's growth strategy for sustainable development? How should we realize the grand design of infrastructure needed for the implementation of such a strategy? It is obvious that further discussions are needed for these challenging questions. With an aim to promote such discussions, this paper reviews the history of public works and the professional practices (or accomplishments) of our great civil engineers, and discusses the future of public works and the roles of civil engineers based on their origin. Further, in this paper, the author, as the chairman of the Public Works Committee of Japan Civil Engineering Contractors Association, introduces the Association's proposal of "realization of an attractive construction industry." However, for its realization, sustainable institutional arrangements under social consensus are indispensable. Also, individual engineer must establish his/her own identity based on sense of social ethics. It is the author's hope that, through these journals, the professional practices of civil engineers will be widely known to the public with objective logics and discussed to achieve social consensus.

  11. 加强软土地基施工管理,提高土木工程施工质量%Enhancing Soft Soil Foundation Construction Management and Improving Civil Engineering Construction Quality

    Institute of Scientific and Technical Information of China (English)

    王秀娟

    2014-01-01

    在土木工程中,加强软土地基施工管理,能够对整个工程施工质量进行提高。其中在软土地基施工管理中,首先要对软土地地基加固处理技术进行管理。下面本文就对土木工程软土地基施工管理技术进行探讨。%In civil engineering, enhancing soft soil foundation construction management can be helpful for improving the construction quality of the whole project. In soft soil foundation construction management, the first thing to do is supervise and control the soft soil foundation reinforcement technology. This paper discusses the soft soil foundation construction management technology in civil engineering.

  12. Biotechnologies and biomimetics for civil engineering

    CERN Document Server

    Labrincha, J; Diamanti, M; Yu, C-P; Lee, H

    2015-01-01

    Putting forward an innovative approach to solving current technological problems faced by human society, this book encompasses a holistic way of perceiving the potential of natural systems. Nature has developed several materials and processes which both maintain an optimal performance and are also totally biodegradable, properties which can be used in civil engineering. Delivering the latest research findings to building industry professionals and other practitioners, as well as containing information useful to the public, ‘Biotechnologies and Biomimetics for Civil Engineering’ serves as an important tool to tackle the challenges of a more sustainable construction industry and the future of buildings.

  13. Probability, statistics, and decision for civil engineers

    CERN Document Server

    Benjamin, Jack R

    2014-01-01

    Designed as a primary text for civil engineering courses, as a supplementary text for courses in other areas, or for self-study by practicing engineers, this text covers the development of decision theory and the applications of probability within the field. Extensive use of examples and illustrations helps readers develop an in-depth appreciation for the theory's applications, which include strength of materials, soil mechanics, construction planning, and water-resource design. A focus on fundamentals includes such subjects as Bayesian statistical decision theory, subjective probability, and

  14. History of Civil Engineering Modal Analysis

    DEFF Research Database (Denmark)

    Brincker, Rune

    2008-01-01

    techniques are available for civil engineering modal analysis. The testing of civil structures defers from the traditional modal testing in the sense, that very often it is difficult, or sometimes impossible, to artificially excite a large civil engineering structure. Also, many times, even though...

  15. 土木工程管理施工过程质量控制措施探究%Study on the Construction Process Quality Control Measures of Civil Engineering Management

    Institute of Scientific and Technical Information of China (English)

    李志刚

    2013-01-01

    This paper discusses the quality control measures of civil engineering management in construction process from the fol owing two aspects:one is the existing problems of the civil engineering management quality control in construction process; the other is the measures for construction process quality control of civil engineering management. According to the construction quality control problem in civil engineering, adopt appropriate control strategy, to improve the civil engine-ering level of construction quality control.%本文从以下两个方面探讨土木工程管理施工过程质量控制措施:一是土木工程管理施工过程质量控制中存在的问题;二是土木工程管理施工过程质量控制的措施。根据土木工程施工质量控制中存在的问题,采取有针对性的控制策略,提高土木工程施工质量控制的水平。

  16. ATLAS Civil Engineering Point 1

    CERN Multimedia

    Jean-Claude Vialis

    1998-01-01

    Different phases of realisation to Point 1 : zone of the ATLAS experiment After watching this film you can get the view of the civil engineering work at POINT1 where the ATLAS will be built. 03-11-1998 The video starts with the view of the POINT1 taken from the roof of the building 33. 04-11-1998 View of the installation of the entrance of the SDX1 18/19-11-1998 Installation of the rafters to the building PX15

  17. Civil Engineering: Improving the Quality of Life.

    Science.gov (United States)

    One Feather, Sandra

    2002-01-01

    American Indian civil engineers describe the educational paths that led them to their engineering careers, applications of civil engineering in reservation communities, necessary job skills, opportunities afforded by internship programs, continuing education, and the importance of early preparation in math and science. Addresses of 12 resource Web…

  18. Educating Civil Engineers for Developing Countries

    Science.gov (United States)

    Stanley, D.

    1974-01-01

    Based on engineering teaching experience in Africa and Asia, ideas are presented on educating civil engineers for developing countries, especially those in Africa. Some of the problems facing educational planners, teachers, and students are addressed, including responsibilities of a newly graduated civil engineer, curriculum development, and…

  19. The Small Helm Project: an academic activity addressing international corruption for undergraduate civil engineering and construction management students.

    Science.gov (United States)

    Benzley, Steven E

    2006-04-01

    This paper presents an academic project that addresses the issue of international corruption in the engineering and construction industry, in a manner that effectively incorporates several learning experiences. The major objectives of the project are to provide the students a learning activity that will 1) make a meaningful contribution within the disciplines being studied; 2) teach by experience a significant principle that can be valuable in numerous situations during an individual's career, and 3) engage the minds, experiences, and enthusiasm of the participants in a real ethical challenge that is prevalent in all of their chosen professional fields. The paper describes the full details of the project, the actual implementation of it during Winter Semester 2005, the experiences gained during the initial trial, and the modifications and improvements incorporated for future implementation.

  20. Analysis on Construction Technologies of Concrete Structure in Civil Engineering Buildings%土木工程建筑中混凝土结构的施工技术分析

    Institute of Scientific and Technical Information of China (English)

    段富振

    2015-01-01

    随着我国社会和经济的不断发展,土木工程建筑业也得到了飞速的发展与进步,土木工程建筑施工中最常采用的材料就是混凝土,为了保证土木工程施工质量,在对土木工程混凝土结构进行施工时对混凝土所具有的性能有了更高的要求.本文针对工程施工中混凝土产生裂缝的原因,对土木工程建筑混凝土结构的相关施工技术进行分析探究,提出笔者的思考和建议,仅供参考.%With the continuous development of society and economy in our country, civil engineering construction indus?try has also achievedrapid development and progress, and the material that is most commonly used in civil engineering construction is concrete, in order to ensure the quality of civil engineering construction, in the construction of concretes?tructure in civil engineering, there arehigher requirementson the performance of concrete. According to the cause of con?crete cracks in the construction, the construction technologies related to civil engineering construction concrete struc?tureareanalyzedandinvestigated, and the author's thinking and suggestions are put forward for your reference.

  1. ISIS Technologies for Smart Civil Engineering Infrastructure

    Institute of Scientific and Technical Information of China (English)

    Aftab A. Mufti; Kenneth W. Neale

    2004-01-01

    For more than a century, important civil engineering structures such as bridges, high-rise buildings, dams and marine platforms have contained iron or steel as the reinforcement for concrete or wood (ISIS Canada Strategic Plan, 2000). The useful lives of such structures have often been severely limited by the corrosion of this ferrous component. Much thought has been given in recent years to constructing structures that are lighter, stronger and non-corrosive. These innovative structures are new and for these to be accepted by the engineering community monitoring is mandatory. ISIS Canada has been developing such structures and monitoring them. In this paper, innovative bridge decks that have been implemented is described.

  2. Pluridisciplinarity vs. interdisciplinarity in civil engineering education in seismic areas

    Directory of Open Access Journals (Sweden)

    Emil-Sever GEORGESCU

    2012-12-01

    Full Text Available Civil engineers are involved in building and maintaining a built environment that meets the sustainable development requirements. This environment is interdisciplinary in its nature, as it results from an interaction between different actors (architects, city planners, authorities, clients, civil engineers. Professional formation and training of engineers is a result of the didactic and technical efforts, which later will be reflected in the way constructions are being designed and built, so that engineers are not considered simple workers. Thus, when discussing professional formation and training of engineers, one should debate the necessary steps they have to take in their relationship with other disciplines. Practicing civil engineering in seismic risk areas in Romania adds specific requirements.

  3. Competencies Framework for Civil Engineer in Thailand

    Directory of Open Access Journals (Sweden)

    Phanudej Kudngaongarm

    2012-02-01

    Full Text Available The civil engineering industry now faces with many problems such as poorly planned projects, breach of the delivery date, erroneous budget estimation, uncontrolled system functionality changes, and inappropriate documentation that all lead to the dissatisfaction of clients. One of the main concerns of civil engineering industry is to develop the talent of its human resources, since the quality and innovation of its products and services depend to a great extent on the knowledge, the ability and the talent that civil engineers apply in the development process. A competency framework defines a set of knowledge, skills, and behaviors that professionals must have to excel in their careers. A competency framework facilitates the identification of training needs and guides the design of a professional development program. In this paper we propose a competency framework for civil engineers, whose design is based on the activities and interactions that they perform during the civil development process. Thus, competency framework for civil engineers defines a set of knowledge, abilities and key behaviors, with special emphasis in the soft skills. The organization that adopts this framework must define and integrate the specific competencies needed by for civil engineers to allow them to fulfill their goals.

  4. Concrete construction engineering handbook

    CERN Document Server

    Nawy, Edward G

    2008-01-01

    Provides coverage of concrete construction engineering and technology. This work features discussions focusing on: the advances in engineered concrete materials; reinforced concrete construction; specialized construction techniques; and, design recommendations for high performance.

  5. Usage of dynamic plans in civil engineering of Serbia

    Directory of Open Access Journals (Sweden)

    Zlatanović Milorad

    2011-01-01

    Full Text Available For a successful realization of a civil engineering project, it is necessary to possess good quality dynamic plans of construction works and of resource involvement. Depending on the type and size of the structure, appropriate type of dynamic plan ought to be used. The plan realization must constantly be observed and updated in order to ensure their full effectiveness. This paper presents the results of a research through a survey of dynamic plan implementation in our civil engineering practice. The results are based on the data processed from the responses to the questions asked in the survey of 45 construction enterprises in Serbia.

  6. Competencies Framework for Civil Engineer in Thailand

    OpenAIRE

    Phanudej Kudngaongarm; Chuchai Sujivorakul

    2012-01-01

    The civil engineering industry now faces with many problems such as poorly planned projects, breach of the delivery date, erroneous budget estimation, uncontrolled system functionality changes, and inappropriate documentation that all lead to the dissatisfaction of clients. One of the main concerns of civil engineering industry is to develop the talent of its human resources, since the quality and innovation of its products and services depend to a great extent on the knowledge, the ability a...

  7. Some Basic Considerations about the Necessities and Possibilities of Cooperation between Civil Engineers and Engineering Geologists

    Science.gov (United States)

    Katzenbach, Rolf; Bachmann, Gregor

    The education of civil engineers and engineering geologists is different. While civil engineers are commonly educated and trained in mathematical and mechanical based sciences as statics, geotechnics, structural engineering etc. the education of engineering geologists is mainly based on natural science, added with some engineering courses. Nevertheless, the careers of both have in spite of their different priorities and capabilities - which all are necessary in complex building projects - several points of contact. Especially during the construction of tunnels, the cooperation of civil engineers and engineering geologists is important. For example the inhomogeneous rock and groundwater conditions have decisive importance for the bearing and deformation behaviour of those constructions. Therefore a detailed investigation program and a qualified geotechnical and geological interpretation and modelling is necessary. The typical field of a civil engineer is the examination of the structural stability (Ultimate Limit State - ULS) and the serviceability (Serviceability Limit State - SLS) of the construction due to Euro-Code (especially EC 1 and EC 7) and the corresponding national technical standards (codes, recommendations, guidelines etc.). A main activity of an engineering geologist is the assessment of the natural circumstances. The cooperation of both professions is settled in the valuation of the subsoil conditions before and during the construction process. The cooperation of engineering geologists and geotechnical engineers lies in the assessment of the subsoil conditions before and during the construction process of ambitious projects with special regard to the bearing and deformation behaviour which is highly influenced by the inhomogeneity and the variance of the subsoil conditions.

  8. Career upgradation of Civil Engineers with respect to Training and Development in M/s URC Construction (p) Ltd., India

    OpenAIRE

    Udhayakumar, R; Karthikeyan, Dr.P.

    2014-01-01

    Training is a continuous learning process that brings a relatively permanent change in an individual which in turn improves the ability of the individual to perform on a particular job. It enhances the Skills, Attitude, and Knowledge of the individual undergoing the training process. It is a continuous educational process to all level of professionals in construction industry. People can learn new information, re-learn and reinforce existing knowledge and skills, and most importantly have ti...

  9. Civil engineering applications of ground penetrating radar

    CERN Document Server

    Pajewski, Lara

    2015-01-01

    This book, based on Transport and Urban Development COST Action TU1208, presents the most advanced applications of ground penetrating radar (GPR) in a civil engineering context, with documentation of instrumentation, methods, and results. It explains clearly how GPR can be employed for the surveying of critical transport infrastructure, such as roads, pavements, bridges, and tunnels, and for the sensing and mapping of underground utilities and voids. Detailed attention is also devoted to use of GPR in the inspection of geological structures and of construction materials and structures, including reinforced concrete, steel reinforcing bars, and pre/post-tensioned stressing ducts. Advanced methods for solution of electromagnetic scattering problems and new data processing techniques are also presented. Readers will come to appreciate that GPR is a safe, advanced, nondestructive, and noninvasive imaging technique that can be effectively used for the inspection of composite structures and the performance of diagn...

  10. Opportunities in Civil Engineering. [VGM Career Horizons Series].

    Science.gov (United States)

    Hagerty, D. Joseph; Heer, John E., Jr.

    This book presents information on career opportunities in civil engineering. Chapter 1 focuses on the scope of civil engineering, discussing: role of scientist, engineer, and technologists; engineering and engineering technology; civil engineer's role and obligations; and other information. Chapter 2 considers such aspects of the education for…

  11. Civil Engineering in Primary Schools

    Science.gov (United States)

    Brown, Martin; Strong, Alan

    2010-01-01

    For many children of primary school age, an engineer is the man who comes to service the central heating system or who fixes the family car when it breaks down. Most have never met a "real" professional engineer, and have no idea of what is involved in the exciting world of engineering. Most assume that engineers are men. To try to remove these…

  12. Vibrational Based Inspection of Civil Engineering Structures

    DEFF Research Database (Denmark)

    Rytter, Anders

    at the University of Aalborg from 1988 to 1991. Secondly, a research project, In-Field Vibration Based Inspection of Civil Engineering Structures, which has been performed as a pilot project by the Consulting Engineers Rambøll, Hannemann and Højlund in cooperation with the department of Building Technology...

  13. IEMAE: mathematics & statistics applied to civil engineering & building

    OpenAIRE

    Serrat Piè, Carles

    2009-01-01

    IEMAE (Institut d’Estadística i Matemàtica Aplicada a l’Edificació - Institute of Statistics and Mathematics Applied to the Building Construction) is an academic institution interested in solving Multidisciplinary problems in the civil and building engineering area by using statistics and mathematics disciplines

  14. Retraining the Modern Civil Engineer.

    Science.gov (United States)

    Priscoli, Jerome Delli

    1983-01-01

    Discusses why modern engineering requires social science and the nature of planning. After these conceptional discussions, 12 practical tools which social science brings to engineering are reviewed. A tested approach to training engineers in these tools is then described. Tools include institutional analysis, policy profiling, and other impact…

  15. 工民建工程施工管理的现状问题与对策%Analysis of the Status Problems and Countermeasures of Civil Engineering Construction Management

    Institute of Scientific and Technical Information of China (English)

    潘海滨

    2013-01-01

    笔者长期从事建筑工程现场施工管理工作,本文首先对我国目前工民建工程施工管理的现状进行了分析,并根据现状中存在的问题提出了相应的对策,以提高工程的施工管理质量。%In this article, the author engaged in site construct-ion management of engineering construction for a long time. This article first carries out the analysis of the status quo of Chinese current civil engineering construction management and put forward the corresponding countermeasures based on the problems in the current situation in order to improve the construction management quality of project.

  16. Exploration of Quality Control Measures in the Management of Civil Engineering Construction%土木工程管理施工过程质量控制措施探究

    Institute of Scientific and Technical Information of China (English)

    杨东

    2014-01-01

    This paper mainly analyzed some common loo- pholes and problems of quality control measures in the mana- gement of civil engineering construction and elaborated, in the current situation, the importance of strengthening the constru- ction quality control of civil engineering management. At the same time, the author studied the problems existing in the civil engineering construction management and hoped it to be he- lpful to the construction personnel.%本文主要分析了土木工程管理施工过程质量控制措施中常见的一些管理漏洞和存在问题,阐述了在当前形势下,加强土木工程管理施工质量控制的重要性。同时针对目前土木工程管理施工工作中存在的问题进行了研究,希望能对施工人员有所借鉴。

  17. Optimal Vibration Control of Civil Engineering Structures

    DEFF Research Database (Denmark)

    Thesbjerg, Leo

    In designing large civil engineering structures, an important consideration is prospective dynamic loadings which may include earthquake ground motion, wind gusts, severe sea states and moving vehicles, rotating and reciprocating machinery and others. successful design of such structures requires...... providing for the safety and integrity of the structure, and in some cases also providing for a measure of comfort for the occupants during such loading which the structure and its occupants must endure. Due to these uncertainties, the civil engineering community has traditionally adopted a very...

  18. Analyzing uncertainty in civil engineering

    CERN Document Server

    Fellin, Wolfgang; Oberguggenberger, Michael; Vieider, Robert

    2005-01-01

    This volumeaddressestheissueofuncertaintyincivilengineeringfromdesign toconstruction. Failures do occur in practice. Attributing them to a residual risk or a faulty execution of the projectdoesnotproperlycover the range of causes. A closer scrutiny of the design, the engineering model, the data, the soil-structure-interactionand the model assumptions is required. Usually, the uncertaintiesininitialandboundaryconditionsaswellasmaterialparameters are abundant. Current engineering practice often leaves these issues aside, despite the factthatnewscienti?c tools have been developed in the past deca

  19. ATLAS: civil engineering Point 1

    CERN Multimedia

    2000-01-01

    The construction work at point one was a massive site including overground and underground work. Point 1 under construction is worth to see.Tools and machinery used during the construction and the multible scenes with people working in different parts of point1. Scenes from the 3D CAD office and some talking in english. Printing out drawings and later views of the empty tunnel were the LHC accelerator is installed 80m under the surface.The film gives the view to the close history in other words to the time before the installations.

  20. Construction informatics - Issues in engineering, computer science and ontology

    OpenAIRE

    Eir, Asger; Bjørner, Dines; Galle, Per

    2004-01-01

    This Ph.D. thesis studies issues in the area of construction informatics. Construction informatics is the theoretical study of formal and conceptual aspects in the domain of civil engineering and design. The thesis is a collection of papers which each treat a specific subject within domain analysis and conceptual modelling of civil engineering and design. Due to the interdisciplinary content, the first half of the study has been carried out at Department of Civil Engineering (BYG"DTU), The Te...

  1. The language of architecture and civil engineering

    CERN Document Server

    Riejos, Ana Ma Roldan

    2011-01-01

    This book not only provides unique and in-depth information to understand the language of architecture and civil engineering, it is also helpful for students and professionals who need to improve their linguistic skills. The LACE book includes plenty of

  2. Characterization of material for civil engineering

    OpenAIRE

    Cappelletto, Elisa

    2014-01-01

    Materials are the heart of engineering, which can be defined as the creative and rational use of materials for practical purposes. Materials have had an essential role in the development of civil engineering: from the beginning of human evolution, man has used many different materials to build houses, bridges, roads and countless other structures to make his life easier. Ancient populations used the raw materials at their disposal, such as stone, clay and timber. Over the centuries, the searc...

  3. Passive control of civil engineering structures

    OpenAIRE

    Braz-César, M.T.; Barros, Rui

    2013-01-01

    Structural control has been a major research area i n aerospace engineering aimed at solving very complex problems related with analysis and des ign of flexible structures. The efficiency of these strategies to improve the performance of s everal structural systems suggests its potential to reduce damage and control earthquake4i nduced response in civil structures. Therefore, this technology has been well accepted b y structural engineers as a feasible approach t...

  4. Research onthe Construction of Campus-based Innovative Practice Base for Civil Engineering Majors---Taking Civil Engineering Majors of Beijing City University as an Example%城建类专业校内创新实践基地建设初探--以北京城市学院城建类专业为例

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    城建类专业学生的创新精神和实践能力必须通过一系列高质量的实践性教育教学环节的训练,才能够得到有效的培养。本文以北京城市学院城建类校内创新实践基地建设为例,阐述了基地“三平台”功能定位,从基地的组织管理、基地资源的配置完善、“三平台”的建设成效等方面,对基地建设情况进行了分析总结。%Only by taking part in a series of practice can the civil engineering majors’innovative spirit and practical ability be effectively trained.Taking the construction of campus-based innovative practice base for civil engineering majors of Beijing City University as an example,this paper describes “three platforms”function of innovative practice base and analyzes the base construction situation through the organization management of innovative practice base,the improvement of resources allocation and the construction of“three platforms”.

  5. Risk Analysis in Civil Engineering

    DEFF Research Database (Denmark)

    Thoft-Christensen, Palle

    Until fairly recently there has been a tendency for structural engineering to be dominated by deterministic thinking, characterised in design calculations by the use of specified minimum material properties, specified load intensities and by prescribed procedures for computing stresses...... of strength are generally not known, In contrast in the field of hydraulic systems, much more is known about the actual performance of, say, pipe networks, weirs, spillways, ect., as their performance in service can be relatively easily observed or determined....

  6. The Language of Civil Engineering: Descriptive, Prescriptive, and Persuasive.

    Science.gov (United States)

    Machauf, Liora

    1990-01-01

    Focuses on the language of civil engineering as manifested in the professional journal "Civil Engineering ASCE." Articles are analyzed, both syntactically and lexically, in terms of three major rhetorical functions: description, prescription, and persuasion. (17 references) (GLR)

  7. Virginia Tech's Michael Duncan receives civil engineering award

    OpenAIRE

    Nystrom, Lynn A.

    2010-01-01

    J. Michael Duncan, Virginia Tech University Distinguished Professor Emeritus of the Via Department of Civil and Environmental Engineering, is the 2010 recipient of the G. Brooks Earnest Award and Lecture from the American Society of Civil Engineers' Cleveland Section.

  8. ATLAS Civil Engineering Point 1

    CERN Multimedia

    Jean-Claude Vialis

    2000-01-01

    Point 1 -the zone for the ATLAS experiment. The film includes various stages of construction, especially from the pit of UX 15. Underground work includes the excavation work of the cavern, demolishing the central pillars and posing the support bars for the pit. The UX 15 - will shelter the detector itself. The cavern is located about 100 m below the surface and it is 53 m long, 30 m wide and 34.90 m high.

  9. A Strategic Approach for Supporting the Future of Civil Engineering Education in Europe

    Science.gov (United States)

    Angelides, Demos C.; Loukogeorgaki, Eva

    2005-01-01

    A new strategic vision of the extensively debated European higher education is proposed with focus on civil engineering. Civil engineering education for the future is considered with relevance to potential world-wide trends and anticipated societal requirements and, therefore, required employee qualifications of the construction-related providers…

  10. Are Quantity Surveyors Competent to Value for Civil Engineering Works? Evaluating QSs' Competencies and Militating Factors

    Science.gov (United States)

    Olawumi, Timothy Oluwatosin; Ayegun, Olaleke Amos

    2016-01-01

    The role of the quantity surveyor is one that is often unclear amongst the general public. This study discussed the competencies of the quantity surveyor in measuring and managing civil engineering works and also carrying out the financial management for civil engineering construction projects; also outlined the various competencies and skills…

  11. HKU's double professional civil engineering and law programme

    OpenAIRE

    Yeung, AT; Ng, ST; Tham, LG; Lee, PKK

    2010-01-01

    The scale and complexity of civil engineering projects are increasing exponentially. Coupled with the growing trend of globalisation, the demand for high-calibre civil engineers who are also knowledgeable in legal matters is increasing. Driven by an aspiration to prepare civil engineering graduates with a solid foundation in both civil engineering and law, The University of Hong Kong has developed the first 5-year credit-based double professional degree programme in Hong Kong, which leads to ...

  12. William Knocke receives 2008 Virginia Outstanding Civil Engineer Award

    OpenAIRE

    Daniilidi, Christina

    2008-01-01

    William R. Knocke, W.C. English Professor and head of the Charles E. Via, Jr. Department of Civil and Environmental Engineering at Virginia Tech, was awarded the 2008 Virginia Outstanding Civil Engineer Award at the Virginia Section of the American Society of Civil Engineers' (ASCE) banquet, held recently in Williamsburg, Va.

  13. Proceedings [of the] 1994 annual conference [of the] Canadian Society for Civil Engineering. Comptes rendus [du] congres annuel 1994 [de la] Societe Canadienne de Genie Civil

    Energy Technology Data Exchange (ETDEWEB)

    1994-01-01

    The first of four volumes of a conference on civil engineering presented papers on hydrotechnical engineering, construction, transportation, cold regions, history, and sustainable development. Separate abstracts have been prepared for 15 papers from the volume.

  14. ATLAS: civil engineering Point 1

    CERN Multimedia

    1998-01-01

    Different phases of the SX 15 realisation to Point 1 : zone of the ATLAS experiment 00:13:43 Realization of the concrete floor 19-10-1998 00:29:26 Putting up the metal rails for the roof 19-10-1998 00:33:42 Road alignment entering to POINT1 and in Bollot wood 27-10-1998 00:41:53 General sight of the buildings in construction Building SX gives the cover for the work at the experiment It is used to shelter the Pit and the work for the underground cavern as well as for covering the ground work with big cranes that allows the lowering of the components belonging to the detector. The hall is also used as a detector part storage and cover during the assembly. It shelters small workshops of mechanics and electronics necessary for the assembly and the maintenance of the ATLAS experiment.

  15. Civil Engineer Corps accessions: forecasting interview requirements and travel budgets

    OpenAIRE

    Sisson, Max

    2008-01-01

    MBA Professional Report The purpose of this MBA Project is to provide insight into interview requirements and travel budgets for the Civil Engineer Corps accessions team through the use of forecasting. The goal of this project is to provide a forecasting model that can predict interview requirements and form the basis for constructing travel budgets and estimates. The primary tool utilized is spreadsheet modeling to include extensive linear regression analysis. Additional insight is pr...

  16. International Civil and Infrastructure Engineering Conference 2014

    CERN Document Server

    Yusoff, Marina; Alisibramulisi, Anizahyati; Amin, Norliyati; Ismail, Zulhabri

    2015-01-01

    The special focus of this proceedings is to cover the areas of infrastructure engineering and sustainability management. The state-of-the art information in infrastructure and sustainable issues in engineering covers earthquake, bioremediation, synergistic management, timber engineering, flood management and intelligent transport systems. It provides precise information with regards to innovative research development in construction materials and structures in addition to a compilation of interdisciplinary finding combining nano-materials and engineering.

  17. International Civil and Infrastructure Engineering Conference 2013

    CERN Document Server

    Yusoff, Marina; Ismail, Zulhabri; Amin, Norliyati; Fadzil, Mohd

    2014-01-01

    The special focus of this proceedings is to cover the areas of infrastructure engineering and sustainability management. The state-of-the art information in infrastructure and sustainable issues in engineering covers earthquake, bioremediation, synergistic management, timber engineering, flood management and intelligent transport systems. It provides precise information with regards to innovative research development in construction materials and structures in addition to a compilation of interdisciplinary finding combining nano-materials and engineering.

  18. Civil Engineering Feasibility Studies for Future Ring Colliders at CERN

    CERN Document Server

    Bruning, O; Myers, S; Osborne, J; Rossi, L; Waaijer, C; Zimmermann, F

    2013-01-01

    CERN civil engineers are studying the feasibility of several potential ring colliders to complement the LHC: an 80km circular tunnel to house the TLEP and VHE-LHC, and the ring-ring and linac-ring options for the LHeC. The feasibility of these projects is largely dependent on civil design and geotechnical and environmental risks. As civil infrastructure works typically represent one third of the cost of major physics projects, it is critical that the construction costs are well understood from the conceptual stage. This proceeding presents the first results of the feasibility studies for the 80km tunnel and the linac-ring LHeC. Presented at IPAC'13 Shanghai, 12-17 May 2013

  19. Applied statistics for civil and environmental engineers

    CERN Document Server

    Kottegoda, N T

    2009-01-01

    Civil and environmental engineers need an understanding of mathematical statistics and probability theory to deal with the variability that affects engineers'' structures, soil pressures, river flows and the like. Students, too, need to get to grips with these rather difficult concepts.This book, written by engineers for engineers, tackles the subject in a clear, up-to-date manner using a process-orientated approach. It introduces the subjects of mathematical statistics and probability theory, and then addresses model estimation and testing, regression and multivariate methods, analysis of extreme events, simulation techniques, risk and reliability, and economic decision making.325 examples and case studies from European and American practice are included and each chapter features realistic problems to be solved.For the second edition new sections have been added on Monte Carlo Markov chain modeling with details of practical Gibbs sampling, sensitivity analysis and aleatory and epistemic uncertainties, and co...

  20. Image processing for safety assessment in civil engineering.

    Science.gov (United States)

    Ferrer, Belen; Pomares, Juan C; Irles, Ramon; Espinosa, Julian; Mas, David

    2013-06-20

    Behavior analysis of construction safety systems is of fundamental importance to avoid accidental injuries. Traditionally, measurements of dynamic actions in civil engineering have been done through accelerometers, but high-speed cameras and image processing techniques can play an important role in this area. Here, we propose using morphological image filtering and Hough transform on high-speed video sequence as tools for dynamic measurements on that field. The presented method is applied to obtain the trajectory and acceleration of a cylindrical ballast falling from a building and trapped by a thread net. Results show that safety recommendations given in construction codes can be potentially dangerous for workers.

  1. Metaheuristics and optimization in civil engineering

    CERN Document Server

    Bekdaş, Gebrail; Nigdeli, Sinan

    2016-01-01

    This timely book deals with a current topic, i.e. the applications of metaheuristic algorithms, with a primary focus on optimization problems in civil engineering. The first chapter offers a concise overview of different kinds of metaheuristic algorithms, explaining their advantages in solving complex engineering problems that cannot be effectively tackled by traditional methods, and citing the most important works for further reading. The remaining chapters report on advanced studies on the applications of certain metaheuristic algorithms to specific engineering problems. Genetic algorithm, bat algorithm, cuckoo search, harmony search and simulated annealing are just some of the methods presented and discussed step by step in real-application contexts, in which they are often used in combination with each other. Thanks to its synthetic yet meticulous and practice-oriented approach, the book is a perfect guide for graduate students, researchers and professionals willing to applying metaheuristic algorithms in...

  2. Vascularised Tissue Engineering Construct

    Directory of Open Access Journals (Sweden)

    Irza Sukmana

    2012-01-01

    Full Text Available The guidance of endothelial cell organization into a capillary network has been a long-standing challenge in tissue engineering. Some research efforts have been made to develop methods to promote capillary networks inside engineered tissue constructs. Capillary and vascular networks that would mimic blood microvessel function can be used to subsequently facilitate oxygen and nutrient transfer as well as waste removal. Vascularization of engineering tissue construct is one of the most favorable strategies to overpass nutrient and oxygen supply limitation, which is often the major hurdle in developing thick and complex tissue and artificial organ. This paper addresses recent advances and future challenges in developing three-dimensional culture systems to promote tissue construct vascularization allowing mimicking blood microvessel development and function encountered in vivo. Bioreactors systems that have been used to create fully vascularized functional tissue constructs will also be outlined.

  3. Active IR-applications in civil engineering

    Science.gov (United States)

    Wiggenhauser, H.

    2002-06-01

    Applications of IR-thermography in civil engineering are not limited to the identification of heat losses in building envelopes. As it is well known from other areas of non-destructive testing, active IR-thermographic methods such as cooling down or lock-in thermography improves the results in many investigations. In civil engineering these techniques have not been used widely. Mostly thermography is used in a quasi-static manner. The interpretation of moisture measurements with thermography on surfaces can be very difficult due to several overlapping effects: emissivity changes due to composition, heat transfer through wet sections of the specimen, cooling through air flow or reflected spurious radiation sources. These effects can be reduced by selectively measuring the reflection in two wavelength windows, one on an absorption band of water and another in a reference band and then combining the results in a moisture index image. Cooling down thermography can be used to identify subsurface structural deficiencies. For building materials like concrete these measurements are performed on a much longer time scale than in flash lamp experiments. A quantitative analysis of the full cooling down process over several minutes can reliably identify defects at different depths. Experiments at BAM have shown, that active thermography is capabale of identifying structural deficiencies or moist areas in building materials much more reliable than quasi-static thermography.

  4. Teaching reform of civil engineering construction course in application- oriented colleges and universities%应用型本科院校土木工程施工技术课程教学改革

    Institute of Scientific and Technical Information of China (English)

    涂劲松; 戈海玉

    2012-01-01

    Civil engineering construction technology is a very practical professional course. Combing theoretical teaching with practical teaching is important to train students' application abilities. Based on the current situation and teaching practice of civil engineering construction course teaching, we proposed suggestions on teaching methods, teaching modes and teaching means. We also introduced the production practice, technical seminars of specific engineering topics, and video and pictures of cases into classroom teaching, which stimulated students' interest in learning, improved the teaching quality, and provided a reference for innovative teaching programs.%土木工程施工技术是一门实践性很强的专业课程,该课程在整个课程体系中起着承前启后的作用,因此把理论与实践教学相结合,使学生具备应用知识的能力成为值得深思的问题。文章从目前土木工程施工技术课程教学现状出发,结合当前土木工程应用型本科院校教学改革实践,对该课程教学方法、教学模式和教学手段等提出了一些改革建议,并把生产实习实践、具体工程专题技术讲座、视频图片案例教学等手段贯穿于课堂教学,这既激发了学生学习兴趣,提高了教学质量,也为该课程的创新教学模式提供参考。

  5. Consolidation on civil engineering and technical infrastructure

    CERN Document Server

    Alves, P; Pepinster, P; van Baaren, W; CERN. Geneva. ST Division

    2003-01-01

    The use and age of the civil engineering structure (office buildings, halls, tunnels) and of tertiary technical equipment (mainly HVAC and electricity) at CERN is such that their renovation must be considered in the near future. Due to the large number of buildings and equipment in these conditions, and the restricted budget available it is extremely important to define priorities. The aim of this paper is to give an overview of the current conditions and the related problems, based on data analysis of CERN database and confronting it with the inventory made at CERN by an external company. After having identified the most frequent problems and repairs to carry out, a planning for intervention is therefore presented optimizing the safety aspects, maintenance costs and comfort for the users. The timescale of this intervention is related to the money that will be available in the coming years.

  6. Structural Control Systems Implemented in Civil Engineering

    Directory of Open Access Journals (Sweden)

    Cristian Pastia

    2005-01-01

    Full Text Available Over the past three decades, a great interest has been generated by the use of protection systems to mitigate the effects of dynamic environmental hazards on civil engineering structures, such as earthquakes and strong wind. These control systems develop controllable forces to add or dissipate energy in a structure, or both, due to specific devices integrated with sensors, controllers and real – time process to operate. The paper includes the advantages of these technologies consisting of the following sections: 1 represents an introduction, 2 deals with passive control system, 3 regards some control techniques, 4 concerns hybrid control techniques, 5 contains semi – active control techniques, and 6 is dedicated to general conclusions.

  7. Geotechnical information as an important element when planning and designing civil engineering work Bogotá

    OpenAIRE

    Denisse Cangrejo Aljure; Carlos Gustavo Infante

    2010-01-01

    The city of Bogota provides a dynamic scenario re civil construction work; it is thereby essential to have relevant information available for the suitable planning and evaluation of engineering work from both the structural and budgetary points of view. The moisture content of soil has become a most important variable, given its great impact on placing structures in Bogota. This is why this work on city zoning aimed at orientating planning and designing civil engineering work has been done a...

  8. M.Sc. in Civil and Structural Engineering

    DEFF Research Database (Denmark)

    The following pages contain a list of project ideas proposed by the scientific staff at the Department of Civil Engineering, Aalborg University, and a number of companies. Most of the project ideas in this catalogue may form the basis for long and short master projects as well as regular 3rd...... semester projects at the M.Sc. programme in Civil and Structural Engineering....

  9. M.Sc. in Civil and Structural Engineering

    DEFF Research Database (Denmark)

    This catalogue contains a list of project ideas proposed by the scientific staff at the Department of Civil Engineering, Aalborg University, and a number of companies. Most of the project ideas in this catalogue may form the basis for long and short candidate projects as well as regular 3rd...... semester projects at the M.Sc. programme in Civil and Structural Engineering....

  10. M.Sc. in Civil and Structural Engineering

    DEFF Research Database (Denmark)

    The catalogue contain a list of project ideas proposed by the scientific staff at the Department of Civil Engineering, Aalborg University, and a number of companies. Most of the project ideas in this catalogue may form the basis for long and short candidate projects as well as regular 3rd semester...... projects at the M.Sc. programme in Civil and Structural Engineering....

  11. M.Sc. in Civil and Structural Engineering

    DEFF Research Database (Denmark)

    Clausen, Johan

    The report contain a list of project ideas proposed by the scientific staff at the Department of Civil Engineering, Aalborg University, and a number of companies. Most of the project ideas in this catalogue may form the basis for long and short candidate projects as well as regular 3rd semester...... projects at the M.Sc. programme in Civil and Structural Engineering....

  12. The role of CERN in the large construction contracts for LHC civil works

    CERN Document Server

    D'Aça-Castel-Branco, P

    1998-01-01

    The contracts for the civil engineering construction of the LHC are based upon the standard FIDIC (Fédération Internationale des Ingénieurs Conseils) document entitled "Conditions of Contract for Works of Civil Engineering Construction". FIDIC is a reputable supra-national and world-wide Federation of Consulting Engineers focused on the definition and regulation of the role of many parties involved with the International Construction Industry. An overview of FIDIC's and other Organizations', such as the World Bank, standard documents is presented. The difference between standard Contract documents and standard Bidding documents is pointed out. In view of CERN's status as an intergovernmental Organization, the original FIDIC standard documents needed to be adapted. The modifications are identified and explained. A concise definition of the role of each party concerned by the LHC construction Contracts, i.e. the Contractor, the Engineer and the Client (CERN), is made. Finally, a brief cost-benefit analysis o...

  13. Reflections on Post Model Construction of Civil Engineering Speciahy in Higher Vocational Colleges%高职建筑工程技术专业“后示范”建设的思考

    Institute of Scientific and Technical Information of China (English)

    徐广舒

    2012-01-01

    The model construction of Civil Engineering Specialty of higher vocational colleges is reviewed, which is followed by a discussion on the post model construction. Combined with the national medium and long-term educational reform and development planning as well as the twelfth Five-Year plan of the construction industry, the paper put forward strategies and specific ways to strengthen connotation construction of the specialty and ways to improve the quality of higher vocational talent training.%在总结高职建筑工程技术专业示范性建设的基础上,结合国家中长期教育改革和发展规划、建筑业"十二五规划",对专业的"后示范"建设问题进行了思考,提出了加强专业内涵建设,提高高职人才培养质量的具体建设策略和思路。

  14. Construction site management and civil construction%施工现场管理与文明施工

    Institute of Scientific and Technical Information of China (English)

    陈作优

    2009-01-01

    Requirements on construction site management and civil construction are introduced as well as major supervision measures for civil construction control. Author points out in order to increase rnanagement level of civil construction "innovation" should be well studied to strengthen construction site management to realize investment return and ensure engineering quality.%介绍了施工现场管理和文明施工的要求,提出了文明施工控制的主要监理措施,指出提高文明施工管理水平关键要在创建两字上下功夫,以加强施工现场管理,达到提高投资效益和保证工程质量的目的.

  15. Civil engineering status report for the CMS worksite

    CERN Document Server

    Osborne, J

    2004-01-01

    Civil engineering construction started at Point 5 in 1998 using a contract based upon the standard FIDIC model (Fédération Internationale des Ingénieurs Conseils). The new surface buildings and underground structures are necessary to accommodate the CMS detector for the LHC Project. The principal underground works at Point 5 consist of two new shafts, two caverns along with a number of small connection tunnels and galleries. At Point 5, the works are now 90% complete. Three surface buildings are due to be completed in 2004, namely the SX extension over the PX56 shaft, including the "Bouchon", and also the SCX and SDX buildings. Underground, the USC55 cavern secondary lining is now complete and the UXC55 cavern lining due for completion in the summer of 2004. The aim of this paper is to present the status of the civil engineering on this worksite and in particular the challenges encountered during construction and experience gained using a FIDIC based contract.

  16. Advances in Structural Control in Civil Engineering in China

    Directory of Open Access Journals (Sweden)

    Hongnan Li

    2010-01-01

    Full Text Available In the recent years, much attention has been paid to the research and development of structural control techniques with particular emphasis on alleviation of wind and seismic responses of buildings and bridges in China. Structural control in civil engineering has been developed from the concept into a workable technology and applied into practical engineering structures. The aim of this paper is to review a state of the art of researches and applications of structural control in civil engineering in China. It includes the passive control, active control, hybrid controland semiactive control. Finally, the possible future directions of structural control in civil engineering in China are presented.

  17. Building Management and ICT Learning in Civil Engineering Education

    DEFF Research Database (Denmark)

    Christiansson, Per Lennart

    2005-01-01

    of ICT in construction courses are reported with particular emphasis on the Aalborg University Project Oriented Problem Based learning model, PPBL. Experiences from present and possible future use of virtual learning spaces and ICT tools to support teaching, learning, and (meta) information handling......The paper presents structures of the learning domains of building informatics exemplified with experiences from building management civil engineering and open education in Industrial IT at Aalborg University. The courses cover areas such as; object oriented programming and relational database...... design, human computer interface, user environment design and usability engineering, computer supported collaborative working, knowledge management, virtual buildings, intelligent buildings, and building systems simulation. Experiences from many years involvement in ICT supported learning and development...

  18. Learning by Seeing: The TEMAS Multimedia Learning Objects for Civil Engineers

    Science.gov (United States)

    Cadoni, Ezio; Botturi, Luca; Forni, Daniele

    2008-01-01

    A goal of engineering and architecture bachelor and master's programs is to provide students with practical and technical preparation in the mechanical characterization of materials and structures: future architects and civil engineers should be able to recognize and describe different construction materials and their behavior when used for…

  19. Automated Modal Parameter Estimation of Civil Engineering Structures

    DEFF Research Database (Denmark)

    Andersen, Palle; Brincker, Rune; Goursat, Maurice;

    In this paper the problems of doing automatic modal parameter extraction of ambient excited civil engineering structures is considered. Two different approaches for obtaining the modal parameters automatically are presented: The Frequency Domain Decomposition (FDD) technique and a correlation...

  20. Ideas in Practice: The Mississippi River: Humanities and Civil Engineering.

    Science.gov (United States)

    Vonalt, Larry; And Others

    1980-01-01

    Describes a course offered for the freshman civil engineering major at the University of Missouri-Rolla. The rationale of developing the course which focuses on the symbolic, social, and technological aspects of the Mississippi River is included. (HM)

  1. Analysis on concrete structure construction technologies in civil engineering%土木工程中混凝土结构的施工技术分析

    Institute of Scientific and Technical Information of China (English)

    李冰冰

    2016-01-01

    Starting from four aspects of concrete grade,construction time,construction supervision and post maintenance,the paper analyzes problems existing in concrete construction,and explores concrete structure construction points and mixing proportion design methods,so as to guarantee concrete structure stability and durability.%从混凝土标号、施工时间、施工监管、后期维护四方面,分析了混凝土施工中存在的问题,并探讨了混凝土结构的施工要点及配比设计方法,保证了混凝土结构的稳定性及耐久性。

  2. Review for dynamic researches in civil engineering in recent years

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    Structure dynamic research is a hot field in civil engineering.It involves in many challenge topics,such as dynamic analysis and tests under earthquake,wind or other dynamic excitations.This paper introduces main dynamic researches in civil engineering in recent years,which will be classified into five aspects,especially for researches published in Science in China Series E:Technological Sciences.

  3. Morphological Characteristics of the Language used in Civil Engineering

    OpenAIRE

    Liliana RICINSCHI

    2014-01-01

    This paper aims at investigating the particular features of civil engineering written discourse. A first assumption is made that the language employed in civil engineering is a subcategory of English for Specific Purposes. As part of ESP, it is thus bound to have a set of specialized lexical and grammatical features which are not in the repertoire of the non-users of that particular domain: complex noun phrases, special use of articles, special use of modal verbs, frequency of the passive voi...

  4. Mechanical Modelling and Computational Issues in Civil Engineering

    OpenAIRE

    FREMOND, M; MACERI, F

    2005-01-01

    In this edited book various novel approaches to problems of modern civil engineering are demonstrated. Experts associated within the Lagrange Laboratory present recent research results in civil engineering dealing both with modelling and computational aspects. Many modern topics are covered, such as monumental dams, soil mechanics and geotechnics, granular media, contact and friction problems, damage and fracture, new structural materials, and vibration damping -presenting the state of the ar...

  5. CER: A Handy Tool for the Civil Engineer

    OpenAIRE

    Klein, Helena

    1998-01-01

    Because of the dynamic developments in information technology, the role of the libraries is also changing dramatically. Access to electronic resources, as a service, has become more common for all those working in libraries. This paper focuses on the Civil Engineering Resources (CER), an electronic resource service available on the World Wide Web. It was developed within the library of Civil Engineering at Lund Institute of Technology, compiling about 500 selected Internet Resour...

  6. Advances in Structural Control in Civil Engineering in China

    OpenAIRE

    Hongnan Li; Linsheng Huo

    2010-01-01

    In the recent years, much attention has been paid to the research and development of structural control techniques with particular emphasis on alleviation of wind and seismic responses of buildings and bridges in China. Structural control in civil engineering has been developed from the concept into a workable technology and applied into practical engineering structures. The aim of this paper is to review a state of the art of researches and applications of structural control in civil enginee...

  7. Applications of Statistics and Probability in Civil Engineering

    DEFF Research Database (Denmark)

    Faber, Michael Havbro

    contains the proceedings of the 11th International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP11, Zürich, Switzerland, 1-4 August 2011). The book focuses not only on the more traditional technical issues, but also emphasizes the societal context...... and reliability in engineering; to professionals and engineers, including insurance and consulting companies working with natural hazards, design, operation and maintenance of civil engineering and industrial facilities; and to decision makers and professionals in the public sector, including nongovernmental...

  8. Characterization of organic materials in civil engineering by chemical and physicochemical methods, chapter 25 In : Yves Mouton (Eds), Organic Materials for Sustainable Construction

    OpenAIRE

    FARCAS, Fabienne

    2013-01-01

    From the domain of roads to the domain of construction, the organic materials used are very diverse (bitumens, paints, cements, etc), but studying their chemical structure and their composition generally uses the same analysis techniques. Without claiming to be exhaustive, this chapter completes and brings up to date the presentation of chemical, physicochemical, physicomechanical and thermomechanical properties previously offered through research studying the chemical structure of basic orga...

  9. 土木工程专业博士研究生模块化课程体系构建研究%Research on the construction of modular curriculum system for PhD of civil engineering specialty

    Institute of Scientific and Technical Information of China (English)

    陈进; 刘元雪; 曾祥蓉; 王仲刚; 张力; 张蕾; 孙涛; 周凌

    2016-01-01

    文章以后勤工程学院为例,针对土木工程专业博士研究生普遍存在的“重论文研究,轻课程学习”的倾向,提出以未来岗位需求为牵引,以创新能力提高为主导,以人才培养为目标,改革传统层次化课程体系,采用模块化课程设计,形成基础课程模块、专业课程模块、拓展课程模块、研究课程模块等四大模块课程结构,加大教学内容创新力度,使模块化课程的教学内容凸显前沿性、动态性、实践性三种特性。同时探索“硬规定、活模块”的模块化课程教学实施模式,以及任课教师授课质量和博士研究生学习成绩两方面模块化课程评价体系的构建,为创建科学合理的土木工程专业博士研究生模块化课程体系打下基础。%Aiming at the tendency of emphasis on thesis research, ignoring courses for the current PhD in civil engineering of our university, we proposed that taking requirements of future job as traction, enhance of innovation capability as leading , and talent training as the goal, reform the traditional hierarchical course system by modular design, and form four modules structure including basis curriculum modules, specialty curriculum modules, expanding curriculum modules, research curriculum modules. And we increase innovation of teaching content which highlight three properties of cutting-edge, dynamic and practical, and explore the modular curriculum teaching implementation mode of hard stipulates living module, as well as construction of two modular curriculum evaluation system including classroom teaching quality and PhD students academic evaluation , so as to build a scientific and rational PhD modular curriculum system in civil engineering.

  10. Importance of Nanotechnology in Civil Engineering

    Directory of Open Access Journals (Sweden)

    Kaizar Hossain

    2015-02-01

    Full Text Available Nanotechnology is an extremely wide term, the definition of which varies from field to field. Most commonly, nanotechnology is defined as “…the understanding, control, and restructuring of matter on the order of nanometers (i.e., less than 100 nm to create materials with fundamentally new properties and functions” [1]. Nanotechnology refers to the manipulation of individual atoms and molecules, by engineering matter at the atomic level.  At the nanoscale, familiar materials can have dramatically different properties: changes can affect color, elasticity, strength, conductivity, and other properties. Nanoparticles also have an increased surface area relative to their volume, making them especially reactive and useful in energy storage, for making composite materials, or as drug delivery devices. Nano materials are also able to be integrated with biological materials, producing new structures that have properties of both types of materials. There are two main types of approaches to nanotechnology: The “top-down” approach and the “bottom-up” approach. The “top-down” approach involves taking larger structures that are either reduced down in size until they reach the nano-scale, or are deconstructed into their composite parts. On the other hand, the “bottom-up” approach is where materials are constructed from the atomic or molecular components.Key Words: materials, structures, nanoparticles, Titanium dioxide,

  11. The Attitude of Civil Engineering Students towards Health and Safety Risk Management: A Case Study

    Science.gov (United States)

    Petersen, A. K.; Reynolds, J. H.; Ng, L. W. T.

    2008-01-01

    The highest rate of accidents and injuries in British industries has been reported by the construction industry during the past decade. Since then stakeholders have recognised that a possible solution would be to inculcate a good attitude towards health and safety risk management in undergraduate civil engineering students and construction…

  12. Blade containment evaluation of civil aircraft engines

    Institute of Scientific and Technical Information of China (English)

    Yang Bin

    2013-01-01

    The potential hazard resulting from uncontained turbine engine rotor blade failure has always been the long-term concern of each aero engine manufacturer,and to fully contain the failed blades under critical operating conditions is also one of the most important considerations to meet the rotor integrity requirements.Usually,there are many factors involving the engine containment capability which need to be reviewed during the engine design phases,such as case thickness,rotor support structure,blade weight and shape,etc.However,the premier method to demonstrate the engine containment capability is the fan blade-off test and margin of safety (MS) analysis.Based on a concrete engine model,this paper aims to explain the key points of aero engine containment requirements in FAR Part 33,and introduces the implementation of MS analysis and fan blade-off test in the engine airworthiness certification.Through the introduction,it would be greatly helpful to the industrial community to evaluate the engine containment capability and prepare the final test demonstration in engine certification procedure.

  13. Utilization of washery waste as secondary raw materials in civil engineering and other industries

    Energy Technology Data Exchange (ETDEWEB)

    Leonhard, J.; Schieder, T.

    1990-02-01

    Specific demands are put on waste from hardcoal production when used as a substitute for scarcening conventional construction materials such as sand, gravel and road stone. Untreated washery refuse is not useful, in general, except as bulk material for subsoil improvement as well as for the construction of embankments and dikes. By subjecting minestone to appropriate mechanical or thermal treatment aggregates it to serve as construction materials in civil engineering and in other industries can be obtained. Face bricks, compact and perforated blocks as well as large hollow blocks either with a calcareous or a cement binder were manufactured for civil engineering. Crushed coarse minestone proved its usefulness as a concrete aggregate. Utilization of ashes from fluidized bed firing systems yielded construction materials whose low density made them particularly fit for thermal insulation pruposes.

  14. Structural and Topology Optimization of Complex Civil Engineering Structures

    DEFF Research Database (Denmark)

    Hald, Frederik; Kirkegaard, Poul Henning; Andersen, Lars Vabbersgaard

    2013-01-01

    This paper shows the use of topology optimization for finding an optimized form for civil engineering structures. Today topology optimization and shape optimization have been integrated in several commercial finite element codes. Here, the topology of two complex civil engineering structures...... patterns and dynamic loading lead to implantation of constraints of the optimization. These constraints will influence and change the final topology....... will be optimized using the commercial code Abaqus CAE. The structures are: a bucket foundation for an off-shore submarine structure for a wind turbine, and a pedestrian footbridge over a freeway. The topology optimization method used is the SIMP method, based on minimizing the structures' compliance. Complex load...

  15. 土木工程施工课程半自助式三阶段教学方法%Semi-self-help Three Period Teaching Method of Civil Engineering Construction Course

    Institute of Scientific and Technical Information of China (English)

    王尧鸿; 侯永利; 吴安利

    2016-01-01

    针对土木工程施工课程的特点,提出半自助式三阶段教学方法。该方法以学生半自助学习为主线,将每个授课内容单元分为3个阶段完成,重视实践环节,突出自主学习,注重培养学生的创新意识,教师由原来在讲台上单纯传道授业解惑的“演员”转变为教学活动的“导演”和学生身边的“教练”,而学生则由原来讲台下被动接受的“观众”转变为教学活动中积极主动的参与者,从而显著提高教学效果。%aiming at the characteristics of civil engineering construction course, this paper put forward semi-self-help three period teaching method. This teaching method takes the semi-self-help study of students as the main line and divides every teaching content unit into three period. The method pays great attention to the practice link, highlights autonomous learning and cultivates creative consciousness of students. The role of teacher is changed from the"actor"on the podium to the"director"of teaching activities and the"coach"around students. Meanwhile the role of students is changed from the passive"audiences"under platform to active participants in teaching activities. So this teaching method can signiifcantly improve the teaching effect.

  16. The Research on the Construction of Extrude Teaching Material for Civil Engineering Major%土建类专业立体化教材建设的研究

    Institute of Scientific and Technical Information of China (English)

    苏德利; 任大鹏; 宋殿文

    2012-01-01

    高校土建类专业传统教材已无法适应当前我国高校创新型和技能型培养人才的需要,在教学实践中,应建立与之配套的广义教材,即立体化教材。它是基于一体化设计的教学系统,它以传统纸质教材为基础,以数字技术为平台,以项目课程为导向,以实践能力教育为目标,并将当前最新三维可视化控制技术与智能化网络技术应用于教学各环节中,形成融“教、学、练、考”为一体的理实一体化课程教学体系。立体化教材构建了土建类专业学生理论学习与生产实际相结合的教学平台,弥补了教学手段、实训条件及时间、空间上的限制,在课堂上实现教学项目与施工项目、教学过程与施工过程、在校学习与实际工作的一致性,达到事半功倍的效果。%The traditional teaching material for civil engineering major has not adapted to current requirement for creative and skilled talents, so the construction of matching extrude teaching material in practical teaching process is necessary. It is one kind of teaching system based on integrated designs, it is based on the traditional paper material. Makes digital techniques as platform, makes project curriculums as guidance, makes practical a- bility education as goal and then applies the latest three-dimensional visual control techniques and intelligent network techniques to each teaching link.Thereby form one type of integrated curriculums teaching system fusing teaching, learning, practicing, examining'together. Extrude teaching material builds one type of teaching plat- form that combines theoretical learning with production practice closely for the students majoring in civil engi- neering. Remedy the restrict existing in teaching methods, practical training condition, time and space. And real- ize the consistency between teaching project and construction project, between teaching process and construction process and

  17. Situated learning methodologies and assessment in civil engineering structures education

    Science.gov (United States)

    Bertz, Michael Davis

    This thesis describes an overarching study of civil engineering undergraduate structural education through student performance in recalling and applying basic structural engineering knowledge, and the viability of alternative situated learning environments for more effectively supporting the learning of this knowledge. To properly ground this study, a thorough investigation of related work in assessment, cognitive science, educational technology, and design education was completed, with connections and applications to civil engineering education highlighted. The experimental work of the thesis is organized into three parts: an assessment of civil engineering undergraduates' fundamental structural engineering knowledge and abilities; the development and testing of a software support environment for situated learning, the Civil Engineering Learning Library (CELL); and, the implementation and evaluation of the design studio, a pedagogical model for situated learning in the classroom. The results of the assessment study indicate that civil engineering seniors (and also students earlier in the curriculum) have difficulty retaining and applying basic knowledge of structural behavior, especially doing so in a flexible fashion in design situations. The survey also suggests that visualization plays an important role in understanding structural behavior. Tests with the CELL system show that a cognitively-flexible multimedia environment can support structural learning, but were inconclusive about whether the computer-based system helped the students to learn better than conventional classroom lecture. Two trial implementations of the design studio indicate that the studio model can serve as a powerful situated learning environment, and that it can be scaled up to reasonable class sizes. Significant requirements are associated with this model, however, primarily in faculty involvement, but also in physical resources and student time. In addition to these conclusions about the

  18. Developing Research Skills for Civil Engineers: A Library Contribution.

    Science.gov (United States)

    Bruce, C. S.; Brameld, G. H.

    1990-01-01

    A library instruction program has been instituted in civil engineering at the Queensland University of Technology (Australia) in an effort to improve the research skills of fourth year students working on research projects. Students with extended library instruction were found to have better information-seeking behavior than others. (Author/MSE)

  19. State Space identification of Civil Engineering Structures from Output Measurements

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning; Andersen, P.

    1997-01-01

    for identification of civil engineering structures. The SST is compared with the stochastic realization estimator Matrix Block Hankel (MBH) and a prediction error method (PEM). The results show that the investigated techniques give good results in terms of estimated modal parameters and mode shapes. Especially...

  20. State Space identification of Civil Engineering Structures from Output Measurements

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning; Andersen, P.

    for identification of civil engineering structures. The SST is compared with the stochastic realization estimator Matrix Block Hankel (MBH) and a prediction error method (PEM). The results show that the investigated techniques give good results in terms of estimated modal parameters and mode shapes. Especially...

  1. The potential of biobased materials in the civil engineering sector

    OpenAIRE

    Venema, Anne

    2012-01-01

    SUMMARY Large quantities of materials are used in the Dutch civil engineering sector every year. Many of these materials have a significant impact on the environment because these materials are based on non-renewable resources and the production is often

  2. Predicaments and Expectations of Civil Engineering Education in China.

    Science.gov (United States)

    Liu, Xila; Fang, Dongping

    2002-01-01

    Explains the goals of civil engineering in China which include integrated knowledge structure and multi-level knowledge and abilities of innovation, adaptation, cooperation, communication, and organization. Discusses the challenges of student-centered education, dynamics of education organization, and open education. (Author/YDS)

  3. Severity estimation and shop visit prediction of civil aircraft engines

    OpenAIRE

    Hanumanthan, Hariharan

    2009-01-01

    To sustain in the vibrant field of civil aviation, the aircraft and engine manufacturers are in the pursuit of delivering efficient systems with the best economics. In umpteen scenarios of growing interest, engine maintenance cost due to scheduled maintenance is of importance. The current research is focused on estimation of the maintenance factors, such as severity and shop visit rate to study the operational scenarios and concurrent technologies. The severity, defined as r...

  4. ATLAS Civil Engineering at Point 1

    CERN Multimedia

    2002-01-01

    Views of ATLAS cavern under the construction, many views also from the Pit where all the parts and machines will be lowered in the future. This film includes views that are taken partly from the tunnel side also. Please note that the video is partly in form of seguence pictures on photo style.

  5. Civil Engineering in the ATLAS cavern

    CERN Multimedia

    Laurent Guiraud

    2000-01-01

    Ghostly figures can be seen wandering the cavern that will eventually house the ATLAS experiment, part of the LHC at CERN. Quite fitting since the detector will hunt the illusive 'ghostly' particles, such as the Higgs boson and dark matter. These engineers are excavating the huge cavern that has to be anchored from above as the detector will fill so much space that there is no room for support pillars.

  6. The Challenges of LHC Civil Engineering

    CERN Multimedia

    CERN-ETT-EC-MM Team

    2003-01-01

    A mosaic of works, structures and workers of differents crafts and origins. Three consulting consortia for the engineering and the follow-up of the works. Four industrial consortia for doing the job. A young team of 25 CERN staff, 30 surface buildings, 32 caverns of all sizes, 170 000 m3 of concrete, 420 000 m3 excavated.1998-2004 : six years of work and 340 millions Swiss Francs.

  7. Importance of Nanotechnology in Civil Engineering

    OpenAIRE

    Kaizar Hossain; Shaik Rameeja

    2015-01-01

    Nanotechnology is an extremely wide term, the definition of which varies from field to field. Most commonly, nanotechnology is defined as “…the understanding, control, and restructuring of matter on the order of nanometers (i.e., less than 100 nm) to create materials with fundamentally new properties and functions” [1]. Nanotechnology refers to the manipulation of individual atoms and molecules, by engineering matter at the atomic level.  At the nanoscale, familiar materials can have dramatic...

  8. Studying civil engineering alumni from a Mexican university

    Directory of Open Access Journals (Sweden)

    Rómel G Solís Carcaño

    2010-04-01

    Full Text Available The present study was aimed at knowing the opinion of graduates from a Mexican university’s Civil Engineering department about several aspects related to their first years as professionals. The study explored aspects such as graduation index, the difficulty of inserting themselves into the labour market, their opinion about the civil engi- neering programme and their interest in continuing their studies. A questionnaire was prepared for gathering the information based on various international, national and local criteria. The results revealed that the graduates had experienced little difficulty in becoming inserting into the local labour market; however, their professional performance had not been as satisfactory as they had expected.

  9. Hydrogels Constructed from Engineered Proteins.

    Science.gov (United States)

    Li, Hongbin; Kong, Na; Laver, Bryce; Liu, Junqiu

    2016-02-24

    Due to their various potential biomedical applications, hydrogels based on engineered proteins have attracted considerable interest. Benefitting from significant progress in recombinant DNA technology and protein engineering/design techniques, the field of protein hydrogels has made amazing progress. The latest progress of hydrogels constructed from engineered recombinant proteins are presented, mainly focused on biorecognition-driven physical hydrogels as well as chemically crosslinked hydrogels. The various bio-recognition based physical crosslinking strategies are discussed, as well as chemical crosslinking chemistries used to engineer protein hydrogels, and protein hydrogels' various biomedical applications. The future perspectives of this fast evolving field of biomaterials are also discussed.

  10. Hydrogels Constructed from Engineered Proteins.

    Science.gov (United States)

    Li, Hongbin; Kong, Na; Laver, Bryce; Liu, Junqiu

    2016-02-24

    Due to their various potential biomedical applications, hydrogels based on engineered proteins have attracted considerable interest. Benefitting from significant progress in recombinant DNA technology and protein engineering/design techniques, the field of protein hydrogels has made amazing progress. The latest progress of hydrogels constructed from engineered recombinant proteins are presented, mainly focused on biorecognition-driven physical hydrogels as well as chemically crosslinked hydrogels. The various bio-recognition based physical crosslinking strategies are discussed, as well as chemical crosslinking chemistries used to engineer protein hydrogels, and protein hydrogels' various biomedical applications. The future perspectives of this fast evolving field of biomaterials are also discussed. PMID:26707834

  11. FOREWORD: Cultural heritage and civil engineering Cultural heritage and civil engineering

    Science.gov (United States)

    Masini, Nicola; Soldovieri, Francesco; Alvarez de Buergo, Monica; Dumoulin, Jean

    2012-08-01

    This special issue of Journal of Geophysics and Engineering offers a diverse panorama of approaches and technologies that aim to characterize and analyse the state of conservation and health of cultural heritage and civil infrastructure. In particular, it provides a significant overview not only of the effectiveness but also of the limitations of single diagnostic techniques, which can be overcome through the integration of different methods and technologies and/or the use of robust and novel data processing techniques. The choice of diagnostic strategy depends on the material (concrete, masonry), the spatial characteristics of the objects or sites, the value of the objects to be investigated (cultural or not), the aim of the investigation (knowledge, conservation, restoration) and the issues to be addressed (monitoring, decay assessment, etc). The paper by Fornaro et al reports an important technological advance in the field of slow deformation monitoring of civil infrastructure by means of differential interferometric synthetic aperture radar (SAR) from satellite platforms. The paper shows how the joint exploitation of the last generation of X-band SAR sensors, such as TerraSAR-X, and novel tomographic approaches makes possible advanced multi-dimensional imaging of real structures such as the Las Vegas Monorail. Within the same SAR-based applications, Tapete et al tested the capability of persistent scatterer interferometry (PSI) techniques in the preventative diagnosis of deformation threatening the structural stability of archaeological monuments and buried structures in the Roman Forum, Palatino Hill and Oppio Hill in the centre of Rome. A PSInSAR processing approach, based on the use of the SqueeSAR algorithm, has been shown to be highly suitable for retrieving not only information about displacements of the archaeological remains, but also evidence of criticalities affecting partially or totally buried structures, such as those discovered at Nero's Golden

  12. M.Sc. in Civil and Structural Engineering

    DEFF Research Database (Denmark)

    Clausen, Johan Christian

    The following pages contain a list of project ideas proposed by the scientific staff at the Department of Civil Engineering, Aalborg University, and a number of companies. Most of the project ideas in this catalogue may form the basis for long and short master projects as well as regular 3rd...... semester projects at the M.Sc. programme in Civil and Structural Engineering. Each project description provides a brief overview of the purpose as well as the main activities. Further, a weighting between theoretical analysis, experimental work and computer modelling has been proposed. Usually...... page. Furthermore, other ideas for projects may be discussed with a potential supervisor. Many private engineering companies have a homepage on which they state that they would like to collaborate with students on a master project....

  13. Assessment and Countermeasures of Ecological Civilization Construction in Changsha,Zhuzhou and Xiangtan

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    [Objective] The aim was to assess the ecological civilization construction in urban agglomeration composed of Changsha,Zhuzhou and Xiangtan synthetically.[Method] By means of analytic hierarchy process,the assessment system of ecological civilization in Changsha,Zhuzhou and Xiangtan was established firstly,and then the ecological civilization construction in Changsha,Zhuzhou and Xiangtan was evaluated comprehensively,and the existing problems and causes of ecological civilization construction were analyzed,...

  14. Impact of Past Project on the Educational Experience of Civil Engineering Students

    OpenAIRE

    Leong Lau Teck; Elleithy Wael

    2016-01-01

    Civil engineering lecturers need to develop effective early emphasis and educational challenges in order to prepare the current students with in-depth fundamental principles, applicable technical knowledge, and realistic appreciation on challenges faced by practicing civil engineers. In view of its importance, the use of past civil engineering projects as case studies have been integrated into the existing civil engineering curriculum at the University of Nottingham Malaysia Campus. In order ...

  15. A Study of the Relationship Between the Practice of Civil Engineering and Student Courses: Volume 1.

    Science.gov (United States)

    Bull, A. J. U.; Richardson, E.

    Australian civil engineers were surveyed for a study intended to establish a model for development based on a list of the basic stock of knowledge and techniques that need to be mastered by the graduate civil engineer. Following a brief introduction and summary, chapters 3-7 review the survey objectives, civil engineering definitions and…

  16. Information systems for civil engineering; Sistemas de informacion para ingenieria civil

    Energy Technology Data Exchange (ETDEWEB)

    De Buen R, Pablo R; Alvarado G, Alonso; Alaniz Q, Felipe de J; Guerrero F, Vicente A. [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2004-07-01

    Since its beginnings, in the Gerencia de Ingenieria Civil (GIC) of the Instituto de Investigaciones Electricas (IIE) the interest has existed to take advantage of and to promote the advantages that the appropriate use of the computerizing systems in the different tasks of civil engineering in the power sector represent. Either as a part of its infrastructure or at the request of their clients, at the GIC have been developed calculation systems for the analysis and design of special structures such as turbo-generators foundations, poles for transmission and distribution and transmission towers, in addition the information systems for the consultation and the analysis of diverse information, such as the related to the Manuals of Civil Works of the Comision Federal de Electricidad (CFE) or the relative to the existing instruments in the large dams of our country. In this article are briefly described some of the computer systems developed by the GIC in recent years. [Spanish] Desde sus inicios, en la Gerencia de Ingenieria Civil (GIC) del Instituto de Investigaciones Electricas (IIE) ha existido el interes por aprovechar y promover las ventajas que representa el uso adecuado de los sistemas de computo en las diferentes tareas de ingenieria civil en el sector energetico. Ya sea como parte de su infraestructura o a solicitud de sus clientes, en la GIC se han desarrollado sistemas de calculo para el analisis y diseno de estructuras especiales como lo son las cimentaciones de turbogeneradores, los postes para transmision y distribucion y las torres de transmision, ademas de sistemas de informacion para la consulta y el analisis de informacion diversa, como es la relacionada con los manuales de obras civiles de la Comision Federal de Electricidad (CFE) o a la relativa a los instrumentos existentes en las grandes presas de nuestro pais. En este articulo se describen brevemente algunos de los sistemas de computo desarrollos por la GIC en anos recientes.

  17. Role of Academic & Research Libraries and International Collaboration on Civil Engineering Education and Its Continuous Professional Development

    OpenAIRE

    Itoh, Yoshito

    2008-01-01

    Proceedings of the 2nd International Civil Engineering Conference on Civil Engineering and Sustainable Development, "modernizing our infrastructure", 23rd-25th September, 2008, Mombasa, Kenya (CE2008)

  18. Construction informatics - Issues in engineering, computer science and ontology

    DEFF Research Database (Denmark)

    Eir, Asger

    2004-01-01

    . With origin in civil engineering and design issues, the study was directed towards computer science oriented theories in an attempt to introduce such theories in modelling and clarification of the domain. This strategy turned out to be a strength for the study and this thesis. However, it also discovered some...... problems in carrying out such a truly interdisciplinary Ph.D. study. Per Galle s and Dines Bjørner's common background in computer science has been essential for the success of this study. The original title of the Ph.D. project was Design and application of a civil engineering ontology. However, it became....... The issues of the thesis are treated from three angles: from computer science, from civil engineering and design theory, and from philosophy. It is characteristic for the thesis that these angles are all present in analysis and argumentation. The philosophical aspect is a natural ingredient as construction...

  19. Organization and management of the LHC civil-engineering contracts

    CERN Document Server

    Watson, T

    1999-01-01

    Since July 1994, the CERN Civil Engineering group within the ST division has been preparing and engaging contracts related to the Large Hadron Collider (LHC) project. Several of these contracts have values in excess of 10 MCHF and will be executed over a number of years; as such they represent an important part of the infrastructure works required for the LHC. To date, in excess of two hundred and fifty companies have been consulted in relation to these contracts. Contracts or orders have been placed with over thirty companies or joint ventures of companies from nearly all the CERN Member States. This paper aims to show the inter-relationships between these contracts and how the Civil Engineering group is carrying out the management of these important LHC contracts. The organization of the group will be explained along with the roles of individual members within the group.

  20. Outsourced design services lessons learned from LHC civil engineering

    CERN Document Server

    Watson, T

    2003-01-01

    In April 1996 CERN awarded three contracts for the provision of civil engineering design and site supervision services associated with the LHC Project. These three contracts with an average value at signature of 12MCHF were placed using the “two envelope” award system. Eight firms from six member states were integrated into three Joint Ventures. For Projects prior to the LHC, CERN would have carried out the design and supervision using in-house staff. The change to out-sourced services represented a major step for CERN. After seven years, the contracts are now coming to their conclusion. This paper aims to discuss the reasons why these contracts were originally implemented, the lessons than have been learnt over the last seven years and conclusions on how CERN could approach the need for civil engineering design services in the future.

  1. Contract Management of LHC Civil Engineering at Point 5

    CERN Document Server

    Osborne, J A

    1999-01-01

    Civil engineering work commenced in August 1998 at LEP Point 5 for the underground and surface works necessary to accommodate the CMS detector for the LHC project. The principal underground works consist of two parallel caverns, separated by a support pillar, two new shafts, a number of smaller connection and service galleries and tunnel enlargements on the existing LEP tunnel. The surface works consist of the 140 m long SX building for the detector assembly and numerous other steel and concrete structures necessary for the installation and operation of CMS. The civil engineering design and supervision has been awarded to a joint venture of Gibb (UK), SGI (Switzerland) and Geoconsult (Austria), and the contracting to a joint venture of Dragados (Spain) and Seli (Italy) for 112 MCHF. The aim of this paper is to discuss the management of this contract and in particular how the various parties interact in order to work most efficiently.

  2. Special issue on non-destructive testing in civil engineering

    OpenAIRE

    DEROBERT, Xavier; Abraham, Odile; Wiggenhauser, H.

    2012-01-01

    This special issue of the Journal of Infrastructure Systems aims to provide an overview on advances of advanced Non Destructive Testing applied to civil engineering structures. Indeed we are at a stage where a substantial part of the infrastructure is entering a critical age. Dams, bridges, tunnels, pavements, nuclear power plants, etc. require sustainable maintenance to qualify for extension of their service life in good condition and safely with appropriate service level. NDT methods hav...

  3. Civil Engineering/ Graduate Students/ Johnston & Jeffryes/ University of Minnesota/ 2012

    OpenAIRE

    Johnston, Lisa; Jeffryes, Jon

    2015-01-01

    From the University of Minnesota, this case study describes the seven modules that comprise their data information literacy program for students in Civil Engineering. The modules include: data management, organization and documentation, data access and ownership, data sharing and re-use, and preservation. Materials include a book chapter describing the case study, the syllabus for the program, a template for developing a data management plan and the evaluation forms that were used.

  4. Introduction to biotechnologies and biomimetics for civil engineering

    OpenAIRE

    Torgal, Fernando Pacheco

    2015-01-01

    This chapter starts with an overview on the sustainable development crucial challenges. The ones directly or indirectly related to the field of civil engineering are highlighted. These include greenhouse gas emissions (GHG) related to the energy consumption of the built environment, aggravated by urbanization forecast expansion, and the recent increase in building cooling needs due to climate change. It also includes the depletion of nonrenewable raw materials and mining-rel...

  5. Zdravko Kapović: Geodesy in Civil Engineering

    Directory of Open Access Journals (Sweden)

    Gorana Novaković

    2010-06-01

    Full Text Available The textbook titled Geodesy in Civil Engineering by Zdravko Kapović was presented to the professional public at the Faculty of Geodesy of the University of Zagreb on May 6, 2010. The book is recognised as a university textbook, it is written in Croatian, hardbound, in B5 format, with ISBN 978-93-6082-13-1. The textbook contains 185 pages, 148 pictures and 6 tables, and its content is divided into nine chapters.

  6. Development of a Civil Engineer Corps community portal prototype

    OpenAIRE

    Rader, Neil Christopher.

    2002-01-01

    Approved for public release; distribution is unlimited The Civil Engineer Corps (CEC) is a relatively small Navy community consisting of approximately 1300 officers. Billets for the CEC are located around the world, and the community requires the ability to disseminate information as efficiently as possible to all corners of the world. Currently, information resources are available in both print and electronic forms in numerous locations. This thesis explores the concept of providing a sin...

  7. Integrating Sustainability into Civil Engineering Education: Curriculum Development & Implementation

    OpenAIRE

    SINNOTT, DEREK; Thomas, Ken

    2012-01-01

    The role of the civil engineer as a specialist, expert or generalist in society is constantly evolving to meet the changing demands of government and industry to achieve a global sustainable world. Consequently, it is imperative that third level institutions meet the challenge of embedding sustainability into curriculum, providing students with generic competencies required for future employment. This paper describes the development and implementation of a curriculum for a new level 8 d...

  8. Civil Engineering for the SHiP facility

    CERN Document Server

    Osborne, John Andrew

    2015-01-01

    The enlarged scope of the recently proposed experiment to search for Heavy Neutral Leptons, SPSC-EOI-010, is a general purpose fixed target facility which in the initial phase is aimed at a general Search for Hidden Particles (SHiP) as well as tau neutrino physics. This report represents an annex to the SHiP Technical Proposal summarizing the civil engineering considerations for SHiP.

  9. WORKERS’ SALARY ACCOUNTING IN COST OF CIVIL ENGINEERING WORKS

    OpenAIRE

    O. S. Goloubova; U. V. Sosnovskaya

    2014-01-01

    A normative method for price formation established in civil engineering determines a procedure of cost formation in respect of any work. However, main problems are still pending in spite of introduction of new estimate-normative РСН-2007-base. The paper considers problems concerning inclusion of workers’ salary in the cost of works, tendencies of the 2008-legislation alterations, their effect on growth of work cost. 

  10. The Brazilian experience in the civil construction of nuclear power plants

    International Nuclear Information System (INIS)

    The processes and phases of technology absorption, together with the resultant Experience-Factor Model for civil Works, considering philosophy of operation of the civil contractor, design aspects and some structural influences for constructing nuclear power plants are presented. (Author)

  11. Development of Digital Computation of Building and Civil Engineering Quantities

    Directory of Open Access Journals (Sweden)

    Aderinola, O.S

    2014-06-01

    Full Text Available The work of Building and Civil engineering demands a greater knowledge, skill and precision in quantity estimation.The manual method of estimating quantities for building and civil engineering works has posed potential problem areas on work that is undertaken. The low reliability of manual estimation indicates discrepancies in the accuracy of quantities computed manually,hence,the introduction of a digital computation.It is envisaged that this method will greatly reduce the complexities of different aspects when computing quantities for projects, as well as reduce the time to complete the computation and therefore projects can be started earlier.The paper reviewed the procedures involved in the development of a computer program for the digital computation of Building and Civil engineering quantities.The program was developed using Microsoft Visual C SHARP (C# programming language and Microsoft Visual studio. The steps/procedure used in achieving the development of the computer program was (1.designing the application interface,(2 adding controls to the window and (3writing codes behind the interface.The digital computation was tested using a proposed Road project and a proposed administrative buildingand the results showed an average of 100% of the items has 0 to 10 percentage difference for the road and 92% for the building in the final outputs of the quantities obtained through the manual computation and the digital computation and the software could therefore be said to be accurate and reliable.

  12. 3rd International Civil and Infrastructure Engineering Conference

    CERN Document Server

    Hamid, Nor; Arshad, Mohd; Arshad, Ahmad; Ridzuan, Ahmad; Awang, Haryati

    2016-01-01

    The special focus of these proceedings is on the areas of infrastructure engineering and sustainability management. They provide detailed information on innovative research developments in construction materials and structures, in addition to a compilation of interdisciplinary findings combining nano-materials and engineering. The coverage of cutting-edge infrastructure and sustainability issues in engineering includes earthquakes, bioremediation, synergistic management, timber engineering, flood management and intelligent transport systems.

  13. CDIO Projects in Civil Engineering Study Program at DTU

    DEFF Research Database (Denmark)

    Krogsbøll, Anette; Simonsen, Claus; Christensen, Jørgen Erik;

    2011-01-01

    or a design build project on each of the first four semesters. In this paper the four projects in the civil engineering study program are described along with a brief description of the entire study program. The aim is to provide additional information and documentation to accompany an exposition where......In 2008 all Bachelor of engineering study programs at the Technical University of Denmark (DTU) have been adopted to the “Conceive – Design – Implement – Operate” approach. As part of the necessary changes it was decided that all seven study programs should have a cross disciplinary project...... students present their projects. Learning outcomes, training and assessment of personal, professional and social engineering skills are described from a project point of view. Progression of engineering skills is discussed from a study program perspective. The interrelation between the various elements...

  14. Application of the Energy Saving Construction Technology in Architectural Engineering of Industrial and Civil Building%工民建建筑工程中节能施工技术的应用

    Institute of Scientific and Technical Information of China (English)

    刘艳

    2014-01-01

    The rapid development of the construction industry has brought the huge consumption of energy for our country, serious impact on the development of our economical society. China is stil in the exploration stage in the industrial and civil construction energy saving technology field, so in reinforcing the application of energy saving construction technology at the same time also should actively learn from foreign advanced energy-saving construction techniques, to promote the develo-pment of China's economy society.%建筑业的高速发展给我国的能源带来了巨大的消耗,严重影响了我国节约型社会的发展理念。我国在工民建筑节能施工技术领域还处于探索的阶段,所以在加强节能施工技术应用的同时还要积极的借鉴国外先进的节能施工技术,促进我国节约型社会的发展。

  15. Cost control management strategies of civil engineering%土建工程造价控制管理策略

    Institute of Scientific and Technical Information of China (English)

    刘斌

    2015-01-01

    介绍了土建工程造价管理的重要性,从工程决策、设计、施工、决算四个阶段,阐述了土建工程造价管理的策略,指出工程造价管理贯穿于施工全过程,只有严格控制施工各环节,才能实现企业成本的节约与积累。%The article introduces the importance of civil engineering cost management,describes civil engineering cost management strategies from four phases of engineering decision,design,construction and computation,and finally points out that engineering cost management penetrates the whole construction process. Therefore,it is necessary for strictly controlling construction points so as to save and accumulate enterprise cost.

  16. Construction of Evaluation System of Provincial Ecological Civilization - A Case of Shangong Province, China

    OpenAIRE

    Liu, Yanjun; Zhang, Baohua; Cao, Jianrong; Chen, Wei

    2009-01-01

    According to the connotation of ecological civilization, construction principle of ecological civilization index system is expatiated, including integrity principle, applicability and feasibility principle, quantification principle and purposefulness principle. Based on this, a total of 23 single factors are selected from four aspects of ecological environmental protection, economic development, social progress and environmental protection consciousness. Ecological civilization index system i...

  17. Grouting applications in civil engineering. Volume I and II

    International Nuclear Information System (INIS)

    A comprehensive description of grouting applications in civil engineering is presented that can serve as a basis for the selection of grouting methods in the borehole sealing problem. The breadth and depth of the study was assured by conducting the main part of the review, the collection and evaluation of information, without specifically considering the borehole sealing problem (but naturally incorporating any aspect of civil engineering applications that could be of potential use). Grouting is very much an art and not a science. In most cases, it is a trial and error procedure where an inexpensive method is initially tried and then a more expensive one is used until the desired results are obtained. Once a desired effect is obtained, it is difficult to credit any one procedure with the success because the results are due to the summation of all the methods used. In many cases, the method that proves successful reflects a small abnormality in the ground or structure rather than its overall characteristics. Hence, successful grouting relies heavily on good engineering judgement and experience, and not on a basic set of standard correlations or equations. 800 references

  18. Engineering of vascularized adipose constructs.

    Science.gov (United States)

    Wiggenhauser, Paul S; Müller, Daniel F; Melchels, Ferry P W; Egaña, José T; Storck, Katharina; Mayer, Helena; Leuthner, Peter; Skodacek, Daniel; Hopfner, Ursula; Machens, Hans G; Staudenmaier, Rainer; Schantz, Jan T

    2012-03-01

    Adipose tissue engineering offers a promising alternative to the current surgical techniques for the treatment of soft tissue defects. It is a challenge to find the appropriate scaffold that not only represents a suitable environment for cells but also allows fabrication of customized tissue constructs, particularly in breast surgery. We investigated two different scaffolds for their potential use in adipose tissue regeneration. Sponge-like polyurethane scaffolds were prepared by mold casting with methylal as foaming agent, whereas polycaprolactone scaffolds with highly regular stacked-fiber architecture were fabricated with fused deposition modeling. Both scaffold types were seeded with human adipose tissue-derived precursor cells, cultured and implanted in nude mice using a femoral arteriovenous flow-through vessel loop for angiogenesis. In vitro, cells attached to both scaffolds and differentiated into adipocytes. In vivo, angiogenesis and adipose tissue formation were observed throughout both constructs after 2 and 4 weeks, with angiogenesis being comparable in seeded and unseeded constructs. Fibrous tissue formation and adipogenesis were more pronounced on polyurethane foam scaffolds than on polycaprolactone prototyped scaffolds. In conclusion, both scaffold designs can be effectively used for adipose tissue engineering. PMID:21850493

  19. Multi-hazard approaches to civil infrastructure engineering

    CERN Document Server

    LaFave, James

    2016-01-01

    This collection focuses on the development of novel approaches to address one of the most pressing challenges of civil engineering, namely the mitigation of natural hazards. Numerous engineering books to date have focused on, and illustrate considerable progress toward, mitigation of individual hazards (earthquakes, wind, and so forth.). The current volume addresses concerns related to overall safety, sustainability and resilience of the built environment when subject to multiple hazards: natural disaster events that are concurrent and either correlated (e.g., wind and surge); uncorrelated (e.g., earthquake and flood); cascading (e.g., fire following earthquake); or uncorrelated and occurring at different times (e.g., wind and earthquake). The authors examine a range of specific topics including methodologies for vulnerability assessment of structures, new techniques to reduce the system demands through control systems; instrumentation, monitoring and condition assessment of structures and foundations; new te...

  20. Chemical characterisation of dredged sediments in relation to their potential use in civil engineering.

    Science.gov (United States)

    Zuliani, Tea; Mladenovič, Ana; Ščančar, Janez; Milačič, Radmila

    2016-04-01

    During capital and/or maintenance dredging operations, large amounts of material are produced. Instead of their discharge, dredged sediments may be a valuable natural resource if not contaminated. One of the possible areas of application is civil engineering. In the present work, the environmental status of seaport dredged sediment was evaluated in order to investigate its potential applicability as a secondary raw material. Sediments were analysed for element concentrations in digested samples, aqueous extracts and fractions from sequential extraction; for fluoride, chloride and sulphate concentrations in aqueous extracts; and for tributyltin (TBT). Granulometric and mineralogical compositions were also analysed. The elemental impact was evaluated by calculation of the enrichment factors. The total element concentrations determined showed moderate contamination of the dredged sediments as was confirmed also by their moderate enrichment factors, presumably as a result of industrial and port activities. Elemental concentrations in the aqueous extract were very low and therefore do not represent any hazard for the environment. The water-soluble element concentrations were under the threshold levels set by the EU Directive on the landfill of waste, on the basis of which the applicability of dredged sediments in civil engineering is evaluated, while the content of chloride and sulphate were above the threshold levels. It was found out that due to the large amounts of sediment available, civil engineering applications such as the construction of embankments and backfilling is the most beneficial recycling solution at present.

  1. Estimating Modal Parameters of Civil Engineering Structures subject to Ambient and Harmonic Excitation

    DEFF Research Database (Denmark)

    Andersen, Palle; Brincker, Rune; Ventura, Carlos;

    In this paper addresses the problems of separating structural modes and harmonics arising from sinusoidal excitation. Though the problem is mostly know in mechanical engineering applications such as rotating machinery, some civil engineering applications experiences the same challenges. A robust...... and fast harmonic detection procedure is presented and illustrated on a civil engineering case....

  2. A Case Study: Problem-Based Learning for Civil Engineering Students in Transportation Courses

    Science.gov (United States)

    Ahern, A. A.

    2010-01-01

    This paper describes two case studies where problem-based learning (PBL) has been introduced to undergraduate civil engineering students in University College Dublin. PBL has recently been put in place in the penultimate and final year transport engineering classes in the civil engineering degree in University College Dublin. In this case study,…

  3. George Filz named Charles E. Via Jr. Professor of Civil and Environmental Engineering

    OpenAIRE

    Crumbley, Liz

    2007-01-01

    George M. Filz of Blacksburg, professor of civil and environmental engineering in the College of Engineering at Virginia Tech, was appointed the Charles E. Via Jr. Professor of Civil and Environmental Engineering by the Virginia Tech Board of Visitors during the board's quarterly meeting August 27.

  4. REALIZATION OF COMPETENCE-BASED APPROACH IN THE TEACHING OF FOREIGN LANGUAGES TO CIVIL ENGINEERING STUDENTS

    OpenAIRE

    Kruchinina, G.; Patyaeva, N.

    2008-01-01

    The article deals with the problems of improving the quality of teaching foreign languages to civil engineering students when competence-based approach is used to setting teaching objectives and planning the results of education. The authors describe the model of the didactic system for developing foreign language competence of civil engineering students in their professional domain. The results of the experiment carried out to develop foreign language competence of civil engineering students...

  5. The Application of Prestressed Concrete Technology in Industrial and Civil Engineering Construction%预应力混凝土技术在工民建施工中的应用

    Institute of Scientific and Technical Information of China (English)

    郝玉通

    2014-01-01

    随着大跨度的需求越来越大,普通混凝土已经不能满足要求,预应力混凝土应运而生。预应力混凝土构件抗裂度及刚度大大提高、耐久性增加、节约混凝土、自重较轻等优点,让大跨度跨江大桥,高强度、超高层建筑成为可能。本文主要阐述预应力混凝土在工民建中的广泛应用。%Along with the demand of large span is more and more big, the ordinary concrete has been unable to meet the requirements prestressed concrete emerged as the times require. Advantages of prestressed concrete structure crack and stif ne-ss greatly increased, increased durability, concrete saving, ligh-ter weight, let the big span bridge across the river, high streng-th and super high-rise buildings become possible. This paper mainly discusses applications of prestressed concrete in indus-trial and civil engineering.

  6. Benchmarking effective service delivery drivers in the South African civil construction industry / by Ernest Venter

    OpenAIRE

    Venter, Ernest Nordin

    2010-01-01

    Identifying and prioritising effective service delivery drivers' in selected civil construction companies are more than merely satisfying customers' need. By successfully identifying and prioritising effective service delivery drivers within the selected civil construction companies, the companies will be able to achieve competitive advantage above their competitors. This study, by using a questionnaire as a measurement instrument, established that a gap currently exist betw...

  7. Discovery Mondays: 'The civil engineering genius of the 100-metre deep underground caverns'

    CERN Multimedia

    2004-01-01

    CERN is first and foremost a place where physicists study particle collisions. But to be able to observe the infinitely small, they need huge pieces of equipment, the accelerators and detectors, whose construction, some 100 metres below the earth's surface calls on the services of other fascinating disciplines. Take civil engineering, for example. For the construction of the LHC some 420 000 cubic metres of rock have had to be excavated for the 6500 metres of tunnel, 6 new shafts and 32 underground chambers and caverns. To avoid disrupting other experiments in progress, the work on these exceptional structures has had to be done without creating vibrations. The ATLAS experiment hall, a huge cathedral-like structure 100 metres below ground, is another mind-blowing feat of civil engineering. Its construction involved the use of ground-breaking technology, such as the system for suspending the ceiling put in place during the excavation work. At the next Discovery Monday, the specialists responsible for...

  8. A TOTAL QUALITY MANAGEMENT APPROACH TO CIVIL ENGINEERING CONSULTING

    Directory of Open Access Journals (Sweden)

    G.A.L. Ambrose

    2012-01-01

    Full Text Available

    ENGLISH ABSTRACT: The article describes the development of a framework for the implementation of a Total Quality Management (TQM approach in the civil consulting industry through the five phases of the typical civil engineering project. For any project to be successful the project team members must take collective and individual responsibility for their role in the project implementation. The organisational goal is “to make money now and in the future”. To achieve this goal the organization must provide value to its clientele. The clients are searching for the silver bullet; double the performance at half the price. TQM provides a means to achieve this goal.

    AFRIKAANSE OPSOMMING: Die artikel beskryf die ontwikkeling van 'n raamwerk vir die implementering van 'n gehaltebestuurstelsel vir die siviele raadgewende bedryf soos dit deelneem aan die vyf fases van 'n tipiese siviele ingenieursprojek. Vir die suksesvolle afhandeling van 'n projek is dit noodsaaklik dat alle projekspanlede gesamentlik en afsonderlik verantwoordelikheid moet aanvaar vir hulle eie betrokkenheid by die projekimplementering. Die organisasie se oogmerk is om “nou en in die toekoms geld te maak”. Ten einde hierdie oogmerk te bereik moet die organisasie waarde vir sy kliënte bied. 'n Gehaltebestuurstelsel voorsien die gereedskap om hierdie doelwit te bereik.

  9. 土木工程虚拟仿真实验教学体系探索与构建%The Exploration and Construction on Virtual Simulation Experiment Teaching System of Civil Engineering

    Institute of Scientific and Technical Information of China (English)

    李彬彬; 苏明周

    2015-01-01

    The Virtual Simulation Experimental Teaching Center of Civil Engineering in Xi'an University of Architecture and Technology upholds the student-centered concept and makes an overall plan to coordinate theoretical and experimental teaching, virtual and real teaching, and virtual and reality technology with a multi-leveled, three-dimensional, open and virtual-real teaching system of virtual simulation experiment. It also renews the idea of virtual simulation experiment teaching, expands the thinking of three-dimensional teaching and promotes the comprehensive development of students' knowledge, ability and quality with a view to the new development and the realization of the virtual simulation experimental teaching.%西安建筑科技大学土木工程虚拟仿真实验教学中心坚持以学生为主体,统筹协调理论教学和实验教学、虚拟教学与实体教学、虚拟技术与现实技术的结合,构建多层次、立体化、开放式、虚实结合的虚拟仿真实验教学体系.创新虚拟仿真实验教学新理念,开拓虚拟仿真实验教学的三维立体教学思路,促进了学生知识、能力、素质的全面发展,实现虚拟仿真实验教学的新发展,为实验教学的发展做出新的贡献.

  10. Experimental, Numerical and Virtual Tools for Civil Engineering Students

    Directory of Open Access Journals (Sweden)

    José Couto Marques

    2011-04-01

    Full Text Available Three sets of teaching tools developed for Civil Engineering students are presented in this paper. The first is a didactic test frame for structural mechanics and its virtual replica. The second is an outfit for small scale seepage studies. The third is a set of portable devices for visual demonstration of several phenomena of interest for introductory soil mechanics classes.

  11. Applications of distributed fiber Bragg grating sensors in civil engineering

    Science.gov (United States)

    Nellen, Philipp M.; Broennimann, Rolf; Sennhauser, Urs J.; Askins, Charles G.; Putnam, Martin A.

    1995-09-01

    We report on civil engineering applications of wavelength multiplexed optical-fiber Bragg grating arrays produced directly on the draw tower for testing and surveying advanced structures and material like carbon fiber reinforced concrete elements and prestressing tendons. We equipped a 6 m X 0.9 m X 0.5 m concrete cantilever beam reinforced with carbon fiber lamellas with fiber Bragg grating sensors. Static and dynamic strain levels up to 1500 micrometers /m were measured with a Michelson interferometer used as Fourier spectrometer with resolutions of about 10 micrometers /m for all sensors. Comparative measurements with electrical resistance strain gauges were in good agreement with the fiber optic results. We used the fiber sensors in two different arrangements: some Bragg grating array elements measured the local strain while others were configured in an extensometric way to measure moderate strain over 0.1-1 m.

  12. Modelling of Electrokinetic Processes in Civil and Environmental Engineering Applications

    DEFF Research Database (Denmark)

    Paz-Garcia, Juan Manuel; Johannesson, Björn; Ottosen, Lisbeth M.;

    2011-01-01

    increases the understanding of the main physicochemical aspects affecting the process. Results from simulations of some test examples are presented, showing the versatility of the model. Two types of enhanced methods are compared: The electrokinetic desalination of a brick sample, using carbonated clay......A mathematical model for the electrokinetic phenomena is described. Numerical simulations of different applications of electrokinetic techniques to the fields of civil and environmental engineering are included, showing the versatility and consistency of the model. The electrokinetics phenomena...... the porous materials undergoes an electroosmotic flow subject to externally applied electric fields. Electroosmotic transport makes electrokinetic techniques suitable for the mobilization of non-charged particles within the pore structure, such as the organic contaminants in soil. Chemical equilibrium...

  13. Compressor Study to Meet Large Civil Tilt Rotor Engine Requirements

    Science.gov (United States)

    Veres, Joseph P.

    2009-01-01

    A vehicle concept study has been made to meet the requirements of the Large Civil Tilt Rotorcraft vehicle mission. A vehicle concept was determined, and a notional turboshaft engine system study was conducted. The engine study defined requirements for the major engine components, including the compressor. The compressor design-point goal was to deliver a pressure ratio of 31:1 at an inlet weight flow of 28.4 lbm/sec. To perform a conceptual design of two potential compressor configurations to meet the design requirement, a mean-line compressor flow analysis and design code were used. The first configuration is an eight-stage axial compressor. Some challenges of the all-axial compressor are the small blade spans of the rear-block stages being 0.28 in., resulting in the last-stage blade tip clearance-to-span ratio of 2.4 percent. The second configuration is a seven-stage axial compressor, with a centrifugal stage having a 0.28-in. impeller-exit blade span. The compressors conceptual designs helped estimate the flow path dimensions, rotor leading and trailing edge blade angles, flow conditions, and velocity triangles for each stage.

  14. IMPORTANCE OF GEOTECHNICS IN TODAY'S AND FUTURE CIVIL ENGINEERING - Public image, risks and responsibilities and future aspects of civil/geotechnical engineering

    OpenAIRE

    Brandl, Heinz

    2011-01-01

    This contribution is dedicated to the public image of the civil engineer and geotechnical engineer, respectively, seen from an ethical and philosophical point of view. Discrepancies between professional opinions, the gap between theory and practice, pros and cons of codes or regulations, and the lifelong learning society are discussed on the basis of the author's nearly fifty years of comprehensive professional experience. Furthermore, the environmental challenge to civil/geotechnical enginee...

  15. Research on moral construction of double-professionally-titled teachers in civil engineering of vocational colleges%高职院校土木类“双师型”教师队伍师德师风建设问题研究

    Institute of Scientific and Technical Information of China (English)

    李晓琳

    2016-01-01

    社会主义荣辱观对高校师德师风建设有着极其重要的意义,因此要从社会主义荣辱观的角度来认识和理解师德师风建设。针对高职院校土木类双师型教师队伍建设,重点研究了土木类双师型教师队伍师德师风建设问题,始终坚持树立社会主义荣辱观,不断地去探索推进师德师风建设。%The socialist concept of honor has extremely importance for college teachers' morality construction, so we should recognize and understand teachers' morality construction from the perspective of the socialist concept of honor and disgrace. Aiming at the construction of double-professionally-titled teaching staff, this paper focused on the issues of teachers' morality construction in major of civil engineering, proposed that we should always adhere to establish the socialist concept of honor and disgrace, and continuously advance teachers' morality construction.

  16. Identification of Civil Engineering Structures using Multivariate ARMAV and RARMAV Models

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning; Andersen, P.; Brincker, Rune

    This paper presents how to make system identification of civil engineering structures using multivariate auto-regressive moving-average vector (ARMAV) models. Further, the ARMAV technique is extended to a recursive technique (RARMAV). The ARMAV model is used to identify measured stationary data....... The results show the usefulness of the approaches for identification of civil engineering structures excited by natural excitation...

  17. What Are the Perceptions of Lecturers towards Using Cooperative Learning in Civil Engineering?

    Science.gov (United States)

    Ahern, Aoife

    2007-01-01

    The objective of the current paper is to examine how group learning and cooperative learning are used in civil engineering courses. The paper defines group learning and cooperative learning in the first section. It is hypothesized that group learning is used in civil engineering courses to build teamwork skills and communication skills among civil…

  18. Developing a Dynamics and Vibrations Course for Civil Engineering Students Based on Fundamental-Principles

    Science.gov (United States)

    Barroso, Luciana R.; Morgan, James R.

    2012-01-01

    This paper describes the creation and evolution of an undergraduate dynamics and vibrations course for civil engineering students. Incorporating vibrations into the course allows students to see and study "real" civil engineering applications of the course content. This connection of academic principles to real life situations is in…

  19. Knowledge, attitude and practices for design for safety: A study on civil & structural engineers.

    Science.gov (United States)

    Goh, Yang Miang; Chua, Sijie

    2016-08-01

    Design for safety (DfS) (also known as prevention through design, safe design and Construction (Design and Management)) promotes early consideration of safety and health hazards during the design phase of a construction project. With early intervention, hazards can be more effectively eliminated or controlled leading to safer worksites and construction processes. DfS is practiced in many countries, including Australia, the UK, and Singapore. In Singapore, the Manpower Ministry enacted the DfS Regulations in July 2015, which will be enforced from August 2016 onwards. Due to the critical role of civil and structural (C&S) engineers during design and construction, the DfS knowledge, attitude and practices (KAP) of C&S engineers have significant impact on the successful implementation of DfS. Thus, this study aims to explore the DfS KAP of C&S engineers so as to guide further research in measuring and improving DfS KAP of designers. During the study, it was found that there is a lack of KAP studies in construction management. Therefore, this study also aims to provide useful lessons for future applications of the KAP framework in construction management research. A questionnaire was developed to assess the DfS KAP of C&S engineers. The responses provided by 43 C&S engineers were analyzed. In addition, interviews with experienced construction professionals were carried out to further understand perceptions of DfS and related issues. The results suggest that C&S engineers are supportive of DfS, but the level of DfS knowledge and practices need to be improved. More DfS guidelines and training should be made available to the engineers. To ensure that DfS can be implemented successfully, there is a need to study the contractual arrangements between clients and designers and the effectiveness of different implementation approaches for the DfS process. The questionnaire and findings in this study provided the foundation for a baseline survey with larger sample size, which is

  20. Knowledge, attitude and practices for design for safety: A study on civil & structural engineers.

    Science.gov (United States)

    Goh, Yang Miang; Chua, Sijie

    2016-08-01

    Design for safety (DfS) (also known as prevention through design, safe design and Construction (Design and Management)) promotes early consideration of safety and health hazards during the design phase of a construction project. With early intervention, hazards can be more effectively eliminated or controlled leading to safer worksites and construction processes. DfS is practiced in many countries, including Australia, the UK, and Singapore. In Singapore, the Manpower Ministry enacted the DfS Regulations in July 2015, which will be enforced from August 2016 onwards. Due to the critical role of civil and structural (C&S) engineers during design and construction, the DfS knowledge, attitude and practices (KAP) of C&S engineers have significant impact on the successful implementation of DfS. Thus, this study aims to explore the DfS KAP of C&S engineers so as to guide further research in measuring and improving DfS KAP of designers. During the study, it was found that there is a lack of KAP studies in construction management. Therefore, this study also aims to provide useful lessons for future applications of the KAP framework in construction management research. A questionnaire was developed to assess the DfS KAP of C&S engineers. The responses provided by 43 C&S engineers were analyzed. In addition, interviews with experienced construction professionals were carried out to further understand perceptions of DfS and related issues. The results suggest that C&S engineers are supportive of DfS, but the level of DfS knowledge and practices need to be improved. More DfS guidelines and training should be made available to the engineers. To ensure that DfS can be implemented successfully, there is a need to study the contractual arrangements between clients and designers and the effectiveness of different implementation approaches for the DfS process. The questionnaire and findings in this study provided the foundation for a baseline survey with larger sample size, which is

  1. Civil Engineering Applications of Ground Penetrating Radar in Finland

    Science.gov (United States)

    Pellinen, Terhi; Huuskonen-Snicker, Eeva; Olkkonen, Martta-Kaisa; Eskelinen, Pekka

    2014-05-01

    Ground penetrating radar (GPR) has been used in Finland since 1980's for civil engineering applications. First applications in this field were road surveys and dam inspections. Common GPR applications in road surveys include the thickness evaluation of the pavement, subgrade soil evaluation and evaluation of the soil moisture and frost susceptibility. Since the 1990's, GPR has been used in combination with other non-destructive testing (NDT) methods in road surveys. Recently, more GPR applications have been adopted, such as evaluating bridges, tunnels, railways and concrete elements. Nowadays, compared with other countries GPR is relatively widely used in Finland for road surveys. Quite many companies, universities and research centers in Finland have their own GPR equipment and are involved in the teaching and research of the GPR method. However, further research and promotion of the GPR techniques are still needed since GPR could be used more routinely. GPR has been used to evaluate the air void content of asphalt pavements for years. Air void content is an important quality measure of pavement condition for both the new and old asphalt pavements. The first Finnish guideline was released in 1999 for the method. Air void content is obtained from the GPR data by measuring the dielectric value as continuous record. To obtain air void content data, few pavement cores must be taken for calibration. Accuracy of the method is however questioned because there are other factors that affect the dielectric value of the asphalt layer, in addition to the air void content. Therefore, a research project is currently carried out at Aalto University in Finland. The overall objective is to investigate if the existing GPR technique used in Finland is accurate enough to be used as QC/QA tool in assessing the compaction of asphalt pavements. The project is funded by the Finnish Transport Agency. Further research interests at Aalto University include developing new microwave asphalt

  2. Civil engineering work to raise the level of Route Goward

    CERN Multimedia

    2013-01-01

    Civil engineering work to raise the level of Route Goward will take place during Long Shutdown 1. The work will begin on 18 March 2013 and is expected to last around 5 months.   Route Goward runs over the top of the PS tunnel and is the only access route to the inside of the ring. The layer of shielding backfill beneath this road is the thinnest anywhere on the PS ring. As the purpose of this shielding is to protect against the ionising radiation emitted by the accelerator when in operation, this road has been classified as a “supervised radiation area” according to radiation protection regulations. This classification was merely a temporary solution and, on the recommendation of the PS Radiation Working Group (PSRWG), the decision has been taken to raise the surface level permanently by around 2 m in order to increase the thickness of the shielding and thus lower the dose rate to that of a non-designated area. As the PS tunnel itself is unable to withstand the weight of t...

  3. Fiber-optic sensor applications in civil and geotechnical engineering

    Science.gov (United States)

    Habel, Wolfgang R.; Krebber, Katerina

    2011-09-01

    Different types of fiber-optic sensors based on glass or polymeric fibers are used to evaluate material behavior or to monitor the integrity and long-term stability of load-bearing structure components. Fiber-optic sensors have been established as a new and innovative measurement technology in very different fields, such as material science, civil engineering, light-weight structures, geotechnical areas as well as chemical and high-voltage substations. Very often, mechanical quantities such as deformation, strain or vibration are requested. However, measurement of chemical quantities in materials and structure components, such as pH value in steel reinforced concrete members also provides information about the integrity of concrete structures. A special fiber-optic chemical sensor for monitoring the alkaline state (pH value) of the cementitious matrix in steel-reinforced concrete structures with the purpose of early detection of corrosion-initiating factors is described. The paper presents the use of several fiber-optic sensor technologies in engineering. One example concerns the use of highly resolving concrete-embeddable fiber Fabry-Perot acoustic emission (AE) sensors for the assessment of the bearing behaviour of large concrete piles in existing foundations or during and after its installation. Another example concerns fiber Bragg grating (FBG) sensors attached to anchor steels (micro piles) to measure the strain distribution in loaded soil anchors. Polymer optical fibers (POF) can be — because of their high elasticity and high ultimate strain — well integrated into textiles to monitor their deformation behaviour. Such "intelligent" textiles are capable of monitoring displacement of soil or slopes, critical mechanical deformation in geotechnical structures (dikes, dams, and embankments) as well as in masonry structures during and after earthquakes.

  4. MANUAL. Fly ash in civil engineering, Gravel roads; HANDBOK. Flygaska i mark- och vaegbyggnad, Grusvaegar

    Energy Technology Data Exchange (ETDEWEB)

    Munde, Hanna; Svedberg, Bo; Macsik, Josef; Maijala, Aino; Lahtinen, Pentti; Ekdahl, Peter; Neren, Jens [Vattenfall AB, Stockholm (Sweden). Vaerme Norden

    2006-01-15

    Fly ash based on biofuels or coal has been used as construction material for a long time in roads and other civil engineering applications. Some example, where it has been used in roadbase and subbase of gravel roads, are in the counties of Uppsala, Soedermanland, Vaestmanland and in Finland. The use of fly ash has contributed to good function for example as bearing capacity, thaw and frost capacity and good durability. This has also reduced costs for maintenance. The objective of this project was to develop a manual to provide a base for contemporary use of fly ash in road constructions. In the manual experience from studies, field tests and regulations has been compiled. The manual handles fly ash as base for products to be used in base and subbase in gravel roads. Future user of the guidelines are mainly consultant engineers and contractors. However the aim of the manual is to also support road administrators, environmental authorities and industry. The project has been carried out parallel to another ongoing national project titled 'Guidelines, Use of alternative materials in civil engineering'. The objective of that project is to establish a base for handling of alternative materials in Sweden. Fly ash in gravel roads are mainly used in two typical applications, one without any additive in a single layer and one with fly ash mixed with gravel. The use of flyash provides functional properties such as increased stiffness, stability and enhanced frost and thaw capacity for the road construction in total. Furthermore the products based on fly ash will have low permeability and good frost and thaw durability. These properties are for example related to fly ash quality, design and construction and are in general expected to be better than for traditional constructions using, for example, sand or gravel. The properties can be enhanced further by using binders such as cement and Merit. Fly ash should always be used above the ground water table with

  5. A preliminary study on the integral relationship between critical thinking and mathematical thinking among practicing civil engineers

    Science.gov (United States)

    Osman, Sharifah; Mohammad, Shahrin; Abu, Mohd Salleh

    2015-05-01

    Mathematics and engineering are inexorably and significantly linked and essentially required in analyzing and accessing thought to make good judgment when dealing in complex and varied engineering problems. A study in the current engineering education curriculum to explore how the critical thinking and mathematical thinking relates to one another, is therefore timely crucial. Unfortunately, there is not much information available explicating about the link. This paper aims to report findings of a critical review as well as to provide brief description of an on-going research aimed to investigate the dispositions of critical thinking and the relationship and integration between critical thinking and mathematical thinking during the execution of civil engineering tasks. The first part of the paper reports an in-depth review on these matters based on rather limited resources. The review showed a considerable form of congruency between these two perspectives of thinking, with some prevalent trends of engineering workplace tasks, problems and challenges. The second part describes an on-going research to be conducted by the researcher to investigate rigorously the relationship and integration between these two types of thinking within the perspective of civil engineering tasks. A reasonably close non-participant observations and semi-structured interviews will be executed for the pilot and main stages of the study. The data will be analyzed using constant comparative analysis in which the grounded theory methodology will be adopted. The findings will serve as a useful grounding for constructing a substantive theory revealing the integral relationship between critical thinking and mathematical thinking in the real civil engineering practice context. The substantive theory, from an angle of view, is expected to contribute some additional useful information to the engineering program outcomes and engineering education instructions, aligns with the expectations of

  6. Practical Applications of Semi-active Control Systems to Civil Engineering Structures

    OpenAIRE

    Florentina Chira; Cristian Pastia; Septimiu-George Luca

    2007-01-01

    During the last few years, it has been paid a considerable attention to the searching and developing of some procedures and mechanisms of structural control to mitigate the effects of dynamic environmental hazards on civil engineering structures. In this paper we review some full-scale applications of semi-active control systems for the protection of the civil structures under dynamic actions.

  7. Recent Applications of Some Active Control Systems to Civil Engineering Structures

    OpenAIRE

    Cristian Pastia; Septimiu-George Luca; Florentina Chira

    2007-01-01

    The application of control systems to civil engineering structures has been investigated in recent years to demonstrate the efficiency of these systems during exceptional natural events such as earthquakes and severe winds. In this paper, a review of some full-scale implementations of active and hybrid control systems for the protection of the civil structures to dynamic actions is performed.

  8. ADVANCED NICKEL-BASED AND NICKEL-IRON-BASED SUPERALLOYS FOR CIVIL ENGINEERING APPLICATIONS

    Institute of Scientific and Technical Information of China (English)

    U. Brill

    2005-01-01

    The use of high-temperature materials is especially important in power station construction,heating systems engineering, furnace industry, chemical and petrochemical industry, waste incineration plants, coal gasification plants and for flying gas turbines in civil and military aircrafts and helicopters. Particularly in recent years, the development of new processes and the drive to improve the economics of existing processes have increased the requirements significantly so that it is necessary to change from well-proven materials to new alloys. Hitherto, heat resistant ferritic steels sufficed in conventional power station constructions for temperatures up to 550℃ newly developed ferritic/martensitic steels provide sufficient strength up to about 600-620℃. In new processes, e.g. fiuidized-bed combustion of coal, process temperatures up to 900℃ occur. However, this is not the upper limit, since in combustion engines, e.g. gas turbines. Material temperatures up to 1100℃ are reached locally. Similar development trends can also be identified in the petrochemical industry and in the heat treatment and furnace engineering. The advance to ever higher material temperatures now not only has the consequence of having to use materials with enhanced high-strength properties, considerable attention now also has to be given to their chemical stability in corrosive media. Therefore not only examples of the use of high-temperature alloys for practical applications will be given but also be contributed to some general rules for material selection with regard to their high-temperature strength and corrosion resistance.

  9. The Use of Mini-projects in the Teaching of Geotechnics to Civil Engineering Undergraduates.

    Science.gov (United States)

    Anderson, W. F.; And Others

    1985-01-01

    Geotechnics (which encompasses soil and rock mechanics, engineering geology, foundation design, and ground engineering methods) is a major component of virtually all civil engineering courses. Show how mini-projects are used to teach this subject. Format of projects, development of presentation skills, and assessment considerations are discussed.…

  10. Infrared emissivity measurements of building and civil engineering materials: a new device for measuring emissivity

    OpenAIRE

    Monchau, Jean-Pierre; Marchetti, Mario; Ibos, Laurent; Dumoulin, Jean; Feuillet, Vincent; Candau, Yves

    2014-01-01

    The knowledge of the infrared emissivity of materials used in buildings and civil engineering structures is useful for two specific approaches. First, quantitative diagnosis of buildings or civil engineering infrastructures by infrared thermography requires emissivity values in the spectral bandwidth of the camera used for measurements, in order to obtain accurate surface temperatures; for instance, emissivity in the band III domain is required when using cameras with uncooled detectors (such...

  11. Using discrete-event simulation to design reliable and cost-efficient civil engineering structures

    OpenAIRE

    Juan Pérez, Angel Alejandro; Ferrer Biosca, Alberto; Serrat Piè, Carles; Faulín, Javier; Hester, J; López Brosa, Pere

    2009-01-01

    In this paper the topic of Structural Reliability Analysis and its importance in modern Civil Engineering is introduced. Throughout the paper, some advantages that simulation-based approaches offer with respect to other classical approaches are discussed. After a review of the most relevant literature on the subject, a simulation-based approach is described. Our methodology makes use of discrete-event simulation techniques to help the civil engineer design more reli...

  12. EVALUATION OF THE AFFECTING FACTORS ON MOTIVATION OF CIVIL ENGINEERING STUDENTS IN ISTANBUL

    OpenAIRE

    MISTIKOĞLU, Gülgün

    2012-01-01

    There are interior and exterior factors affecting on motivation. Exterior effects depens on environment conditions and possibilties. In this study, universitys civil engineering students in İstanbul were administered a questionnaire to determine the (exterior) factor affecting their motivation.Prepared questionnaire for civil engineers students are asked to two groups questions.The first group of questions are consist of questions that directly affected the student`s achievement and motivati...

  13. Development of a prototype detailing management system for the Civil Engineer Corps

    OpenAIRE

    Weinstein, Brian Louis

    2002-01-01

    Approved for public release; distribution is unlimited The Civil Engineer Corps (CEC) is a small group of naval officers totaling approximately 1250 officers. Being a small community, the CEC attempts to capture the location and other relevant information of every CEC Officer at a given time and publis h that information in the Chief of Civil Engineers Directory (P-1). The CEC detailers also produce and work off a Staffing Plan to help them manage the movement of officers. The current proc...

  14. Ideology and Poetics in Public Issue Construction: Thatcherism, Civil Liberties, and "Terrorism" in Northern Ireland.

    Science.gov (United States)

    Parry-Giles, Trevor

    1995-01-01

    Examines the rhetoric of Margaret Thatcher, indicating how Thatcherism intensified existing ideological tensions within the British context; how Thatcherism constructed the public issue of "terrorism" in Northern Ireland as an "epic tragedy"; and how such a construction materially shifted and ensnared commitments to "freedom" and civil liberties.…

  15. Practical Guide to Engineering and Construction Contracts

    Directory of Open Access Journals (Sweden)

    Philip Davenport

    2010-12-01

    Full Text Available Book ReviewPractical Guide to Engineering and Construction Contracts Philip Loots and Donald Charrett, CCH Australia Limited, Sydney 2009, 439 pages plus index, ISBN 9781921593529 (hardback AUD 95

  16. Designing educational software for analysing pressurised hydraulic systems in civil engineering

    Directory of Open Access Journals (Sweden)

    Myriam Rocío Pallares Muñoz

    2010-04-01

    Full Text Available New information technologies have opened up a world of inexhaustible possibilities in teaching. Using such technologies in technical teaching has become indispensable due to the nature of current resources in industrial design and production. This work consists of preparing didactic material (educational software aimed at tea- ching fluid mechanics, particularly analysing tube, tank and pumping systems, initially aimed at civil engineering students from the Universidad Santo Tomás in Bogotá. Such materials have been successfully developed and used in their formal programmes by several universities around the world during the last few years. The didactic software mentioned in this work was constructed using Visual Basic programming language. This has resulted in a very useful educational tool, leading to effective teacher—student communication which is suitable for both the classroom and students’ personal work (Angel y Bautista, 2001; Aguiar, 2002.

  17. Discovery Mondays - 'The civil engineering genius of the 100-metre deep underground caverns'

    CERN Multimedia

    2004-01-01

    CERN is first and foremost a place where physicists study particle collisions. But to be able to observe the infinitely small, they need huge pieces of equipment, the accelerators and detectors, whose construction, some 100 metres below the earth's surface, calls on the services of other fascinating disciplines. Take civil engineering, for example. At the next Discovery Monday, come and find out about the machines involved in the large-scale excavation and concreting work. Everyone is welcome at Microcosm, which will be specially transformed into a worksite for the occasion! Come along to Microcosm (Reception Building 33, Meyrin site) on Monday 6 September from 7:30 p.m. to 9:00 p.m. Entrance Free http://www.cern.ch/microcosm

  18. Civil-engineering work for Linac 4 and related roadworks - information for drivers

    CERN Multimedia

    TS Department

    2008-01-01

    The civil-engineering work for the construction of the Linac 4 accelerator has started on 22 October on the Mont Citron, the mound just opposite Restaurant No. 2 between the Computer Centre and the PS complex. Initially the work will involve excavating the mound and transporting the spoil to the area in front of Building SM18. This first phase of work will last for about five months until April 2009. The large number of lorries will cause disruption to traffic on the Route Rutherford, part of the Route Einstein and in the transfer tunnel between the two sites. Traffic lights for alternating traffic will be in operation at each end of the tunnel since there is insufficient room for two lorries travelling in opposite directions to use it at the same time. Consequently, users are strongly recommended not to use the tunnel except for transporting equipment between the two sites. Users not transporting equipment are strongly recommended ...

  19. Civil engineering: EDF needs for concrete modelling; Genie civile: analyse des besoins EDF en modelisation du comportement des betons

    Energy Technology Data Exchange (ETDEWEB)

    Didry, O.; Gerard, B.; Bui, D. [Electricite de France (EDF), Direction des Etudes et Recherches, 92 - Clamart (France)

    1997-12-31

    Concrete structures which are encountered at EDF, like all civil engineering structures, age. In order to adapt the maintenance conditions of these structures, particularly to extend their service life, and also to prepare constructions of future structures, tools for predicting the behaviour of these structures in their environment should be available. For EDF the technical risks are high and consequently very appropriate R and D actions are required. In this context the Direction des Etudes et Recherches (DER) has developed a methodology for analysing concrete structure behaviour modelling. This approach has several aims: - making a distinction between the problems which refer to the existing models and those which require R and D; - displaying disciplinary links between different problems encountered on EDF structures (non-linear mechanical, chemical - hydraulic - mechanical coupling, etc); - listing of the existing tools and positioning the DER `Aster` finite element code among them. This document is a state of the art of scientific knowledge intended to shed light on the fields in which one should be involved when there is, on one part a strong requirement on the side of structure operators, and on the other one, the present tools do not allow this requirement to be satisfactorily met. The analysis has been done on 12 scientific subjects: 1) Hydration of concrete at early ages: exothermicity, hardening, autogenous shrinkage; 2) Drying and drying shrinkage; 3) Alkali-silica reaction and bulky stage formation; 4) Long term deterioration by leaching; 5) Ionic diffusion and associated attacks: the chlorides case; 6) Permeability / tightness of concrete; 7) Concretes -nonlinear behaviour and cracking (I): contribution of the plasticity models; 8) Concretes - nonlinear behaviour and cracking (II): contribution of the damage models; 9) Concretes - nonlinear behaviour and cracking (III): the contribution of the probabilistic analysis model; 10) Delayed behaviour of

  20. Bridge engineering handbook construction and maintenance

    CERN Document Server

    Chen, Wai-Fah

    2014-01-01

    Over 140 experts, 14 countries, and 89 chapters are represented in the second edition of the Bridge Engineering Handbook. This extensive collection highlights bridge engineering specimens from around the world, contains detailed information on bridge engineering, and thoroughly explains the concepts and practical applications surrounding the subject.Published in five books: Fundamentals, Superstructure Design, Substructure Design, Seismic Design, and Construction and Maintenance, this new edition provides numerous worked-out examples that give readers step-by-step design procedures, includes c

  1. Engineering Accomplishments in the Construction of NCSX

    Energy Technology Data Exchange (ETDEWEB)

    G. H. Neilson; P.J. Heitzenroeder; B.E. Nelson; W.T. Reiersen; A. Brooks; T.G. Brown; J.H. Chrzanowski; M.J. Cole; F. Dahlgren; T. Dodson; L.E. Dudek; R.A. Ellis; H.M. Fan; P.J. Fogarty; K.D. Freudenberg; P.L. Goranson; J.H. Harris; M.R. Kalish; G. Labik; J.F. Lyon; N. Pomphrey; C.D. Priniski; S. Raftopoulos; D.J. Rej; W.R. Sands; R.T. Simmons; B.E. Stratton; R.L. Strykowsky; M.E. Viola; D.E. Williamson; M.C. Zarnstorff

    2008-09-01

    The National Compact Stellarator Experiment (NCSX) was designed to test a compact, quasiaxisymmetric stellarator configuration. Flexibility and accurate realization of its complex 3D geometry were key requirements affecting the design and construction. While the project was terminated before completing construction, there were significant engineering accomplishments in design, fabrication, and assembly. The design of the stellarator core device was completed. All of the modular coils, toroidal field coils, and vacuum vessel sectors were fabricated. Critical assembly steps were demonstrated. Engineering advances were made in the application of CAD modeling, structural analysis, and accurate fabrication of complex-shaped components and subassemblies. The engineering accomplishments of the project are summarized

  2. Impact of Past Project on the Educational Experience of Civil Engineering Students

    Directory of Open Access Journals (Sweden)

    Leong Lau Teck

    2016-01-01

    Full Text Available Civil engineering lecturers need to develop effective early emphasis and educational challenges in order to prepare the current students with in-depth fundamental principles, applicable technical knowledge, and realistic appreciation on challenges faced by practicing civil engineers. In view of its importance, the use of past civil engineering projects as case studies have been integrated into the existing civil engineering curriculum at the University of Nottingham Malaysia Campus. In order to enhance our undergraduate students’ understanding, cognitive learning desire, and overall learning experience, an additional module has been incorporated in the past five years to investigate major past civil engineering projects. Students are free to choose any of past projects as their case studies and are required to find, sort, synthesize, and present critical elements that contributed to the overall success of the past projects in the form of discussion essays. In this paper, the universal consensus between the lecturers and the students on the effectiveness of past civil engineering projects as case studies to enhance students’ lifelong learning desire and aspiration towards ethical practice are investigated. The lecturers’ and students’ views on the extent of coverage of the key elements and the preferred disciplines from the past projects are furthermore evaluated. The outcomes indicate that the use of past projects as case studies enhanced students’ educational experiences that conduce for cognitive learning desires (73% of lecturers & 81% of students, motivated for future ethical practice (82% of lecturers & 86% of students, and reassured aspiration (100% of lecturers & 97% of students in becoming practicing civil engineers upon graduation. A common view derives from this study is that the curriculum needs to further its extent of coverage on the industry practices.

  3. 19 CFR 10.183 - Duty-free entry of civil aircraft, aircraft engines, ground flight simulators, parts, components...

    Science.gov (United States)

    2010-04-01

    ... Duty-free entry of civil aircraft, aircraft engines, ground flight simulators, parts, components, and... aircraft, aircraft engines, and ground flight simulators, including their parts, components, and... United States (HTSUS) by meeting the following requirements: (1) The aircraft, aircraft engines,...

  4. Hybrid structure in civil engineering construction. Recent examples of composite structures of railways; Doboku bun`ya ni okeru fukugo kozo. Tetsudo ni okeru saikin no fukugo kozo no tekiyo rei

    Energy Technology Data Exchange (ETDEWEB)

    Tsuyoshi, T.; Yamauchi, T.; Takano, H. [East Japan Railway Co., Tokyo (Japan); Kurihara, H.

    1995-03-30

    With priority given to the multistory work of the Chuo (central) Line now under construction at the Tokyo Station, applied cases of composite structures to railroads are reported. The Chuo Line is scheduled to run on a viaduct. The experiment performed in relation to the application of RC columns wound by steel pipes with high density reinforcement bars and the outline of the design and execution of works are described. The outline of the design and execution of works of rigidly framed R9 block including bridge is given together with report on the experiments, design, and execution of works. The tensile stress of the cross section of steel pipes used on the outside of members is designed to be born by reinforcement bars. The overbridge in the yard of the Kinshicho Station crosses the Station under the railroad track in the north-south direction. Steel is used for the elements above the ridge frame columns, and RC composite structure is employed for parts lower than the footing. At the new Kamishiki Station in the Musashino Line, embankment is removed to construct the viaduct while trains are running on the line at the same time. Night works are decreased, terms of works are shortened, efficient and safe operation become possible, but columns and beams are required to be constructed under the ground. 8 refs., 27 figs., 3 tabs.

  5. Fundamentals of civil engineering an introduction to the ASCE body of knowledge

    CERN Document Server

    McCuen, Richard H; Wong, Melanie K

    2011-01-01

    While the ASCE Body of Knowledge (BOK2) is the codified source for all technical and non-technical information necessary for those seeking to attain licensure in civil engineering, recent graduates have notoriously been lacking in the non-technical aspects even as they excel in the technical. Fundamentals of Civil Engineering: An Introduction to the ASCE Body of Knowledge addresses this shortfall and helps budding engineers develop the knowledge, skills, and attitudes suggested and implied by the BOK2. Written as a resource for all of the non-technical outcomes not specifically covered in the

  6. Computational mechanics in civil engineering (CMC). Fire - Heat transfer - Stress analysis

    NARCIS (Netherlands)

    Hendriks, M.A.N.; H¢iseth, K.V.; Hynne, T.; ¥verli, J.A.

    1999-01-01

    engineering, especially related to integrated analysis [1]. That is, analysis where two or more interacting effects or phenomena are analysed either staggered or simultaneously. CMC contains five main projects where frequently encountered problems in civil engineering will be treated by an integrate

  7. Boundaries - US Army Corps of Engineers - St. Paul District (MVP) Civil Works

    Data.gov (United States)

    Army Corps of Engineers, Department of the Army, Department of Defense — The US Army Corps of Engineers - St. Paul District Civil Works boundary. Boundary is based on 1:24k watershed data and coordination with MVR to determine shared...

  8. Incorporating civil-defense shelter space in new underground construction

    International Nuclear Information System (INIS)

    At the present time, the population of the US is approximately ten times more vulnerable to nuclear weapons than the Soviet population. This vulnerability can be reduced rapidly by urban evacuation in a crisis. However, the need to keep the essential economy running in a crisis, as well as coping with attacks on short warning, makes the construction of shelter space where people live very desirable. This can be done most economically by slightly modifying underground construction intended for peacetime use. The designer must consider all elements of the emergency environment when designing the space. Provisions must be made for emergency egress, light and ventilation (without elecric power), blast closures, water, sanitation, and food. The option of upgrading the space in a crisis should be considered. An example is given

  9. New eco-friendly hybrid composite materials for civil construction

    OpenAIRE

    Eires, R.; Nunes, J. P.; Fangueiro, Raúl; Jalali, Said; Camões, Aires

    2006-01-01

    This paper concerns the development of new hybrid composite materials using granulated cork, a by-product of cork industry, cellulose pulp, from recycling of paper residues, and hemp fibres. The binder used is either cellulose pulp or lime-pozzolan mixture. Such materials may be used as composite boards and mortars for non structural elements of construction, such as dry walls and ceiling or floor levelling and filling. The possibility of using these composites in conjugation with light st...

  10. New eco-friendly gypsum materials for civil construction

    OpenAIRE

    Eires, R.; Camões, Aires; Jalali, Said

    2007-01-01

    The sustainable world’s economic growth and people’s life improvement greatly depend on the use of alternative products in the architecture and construction, such as industrial wastes conventionally called “green materials”. This paper concerns the main results of an experimental work carried out with the objective of developing new composite materials based on gypsum and incorporating waste material as granulated cork, a by-product of cork industry, and cellulose fibres, a waste of pap...

  11. Conceptual Design Report. Footprint Gallery Upgrade - Civil Construction, May 1988

    Energy Technology Data Exchange (ETDEWEB)

    None

    1988-05-01

    The Footprint Gallery Complex will be enlarged and modified. The basic outline of the project will be to add 68,100 square feet of new construction, remodel 20,600 square feet of existing space, and retire by removal 17 ,500 square feet. The principal items to be addressed are: the creation of larger Main Control Rooms and Central Control Computer Rooms, the replacement of several temporary structures with permanent facilities, the provision for a growth in population of 132 people, and the creation of an intermediate sized meeting/lecture room facility. Disjointed second floor areas will be connected and made accessible to the handicapped, secure and informative viewing for visitors will be provided, and parking will be increased to match the expected growth. The new construction will provide for a more centralized concentration of systems and support personnel of the Fermilab Accelerator Division, reflecting the growth of these organizations during the last 15 years. Experiments, such as the D-Zero detector and antiproton deceleration (E760), have been assigned to the Accelerator Division for support. The associated physicists and experimenters make up the most significant component of the growth in population for which this construction will provide additional space.

  12. Applications and issues of GIS as tool for civil engineering modeling

    Science.gov (United States)

    Miles, S.B.; Ho, C.L.

    1999-01-01

    A tool that has proliferated within civil engineering in recent years is geographic information systems (GIS). The goal of a tool is to supplement ability and knowledge that already exists, not to serve as a replacement for that which is lacking. To secure the benefits and avoid misuse of a burgeoning tool, engineers must understand the limitations, alternatives, and context of the tool. The common benefits of using GIS as a supplement to engineering modeling are summarized. Several brief case studies of GIS modeling applications are taken from popular civil engineering literature to demonstrate the wide use and varied implementation of GIS across the discipline. Drawing from the case studies, limitations regarding traditional GIS data models find the implementation of civil engineering models within current GIS are identified and countered by discussing the direction of the next generation of GIS. The paper concludes by highlighting the potential for the misuse of GIS in the context of engineering modeling and suggests that this potential can be reduced through education and awareness. The goal of this paper is to promote awareness of the issues related to GIS-based modeling and to assist in the formulation of questions regarding the application of current GIS. The technology has experienced much publicity of late, with many engineers being perhaps too excited about the usefulness of current GIS. An undoubtedly beneficial side effect of this, however, is that engineers are becoming more aware of GIS and, hopefully, the associated subtleties. Civil engineers must stay informed of GIS issues and progress, but more importantly, civil engineers must inform the GIS community to direct the technology development optimally.

  13. Landsat 8 Multispectral and Pansharpened Imagery Processing on the Study of Civil Engineering Issues

    Science.gov (United States)

    Lazaridou, M. A.; Karagianni, A. Ch.

    2016-06-01

    Scientific and professional interests of civil engineering mainly include structures, hydraulics, geotechnical engineering, environment, and transportation issues. Topics included in the context of the above may concern urban environment issues, urban planning, hydrological modelling, study of hazards and road construction. Land cover information contributes significantly on the study of the above subjects. Land cover information can be acquired effectively by visual image interpretation of satellite imagery or after applying enhancement routines and also by imagery classification. The Landsat Data Continuity Mission (LDCM - Landsat 8) is the latest satellite in Landsat series, launched in February 2013. Landsat 8 medium spatial resolution multispectral imagery presents particular interest in extracting land cover, because of the fine spectral resolution, the radiometric quantization of 12bits, the capability of merging the high resolution panchromatic band of 15 meters with multispectral imagery of 30 meters as well as the policy of free data. In this paper, Landsat 8 multispectral and panchromatic imageries are being used, concerning surroundings of a lake in north-western Greece. Land cover information is extracted, using suitable digital image processing software. The rich spectral context of the multispectral image is combined with the high spatial resolution of the panchromatic image, applying image fusion - pansharpening, facilitating in this way visual image interpretation to delineate land cover. Further processing concerns supervised image classification. The classification of pansharpened image preceded multispectral image classification. Corresponding comparative considerations are also presented.

  14. The Use of MIVES as a Sustainability Assessment MCDM Method for Architecture and Civil Engineering Applications

    Directory of Open Access Journals (Sweden)

    Oriol Pons

    2016-05-01

    Full Text Available Environmental and sustainability assessment tools have an important role in moving towards a better world, bringing knowledge and raising awareness. In the architecture and civil engineering sector, these assessment tools help in moving forward to constructions that have less economic, environmental and social impacts. At present, there are numerous assessment tools and methods with different approaches and scopes that have been analyzed in numerous technical reviews. However, there is no agreement about which method should be used for each evaluation case. This research paper synthetically analyzes the main sustainability assessment methods for the construction sector, comparing their strengths and weaknesses in order to present the challenges of the Spanish Integrated Value Model for Sustainability Assessment (MIVES. MIVES is a Multi-Criteria Decision Making method based on the value function concept and the Seminars of experts. Then, this article analyzes MIVES advantages and weak points by going through its methodology and two representative applications. At the end, the area of application of MIVES is described in detail along with the general application cases of the main types of assessment tools and methods.

  15. Welding engineering manual for constructing engineers. Pt. 2

    International Nuclear Information System (INIS)

    The manual is a real treasure trove of knowledge and experience for the statics expert, the constructing engineer, and the welding engineer, who have to do with design and dimensioning of welding engineering work for steel structures, bridges, boilers, vessels, and pipes. Many practical examples are given together with numerous data that provide helpful information for the task of technical and economic design and dimensioning. Determination of efficient and appropriate cross-sectional dimensions and materials is the main goal of the manual. Structural steel engineering and installations subject to monitoring and inspection such as boilers, pipings, pressure vessels, and nuclear installations are the subject fields dealt with in separate chapters. The dimensioning rules presented are based on the regulations and technical codes valid in the GDR and the FRG. The catalogue of technical rules of the FRG concerning structural steel engineering and installations as above are given in supplementary chapters. (orig./HP)

  16. Quality Assessment Survey at the School of Civil Engineering at Aalborg University

    DEFF Research Database (Denmark)

    Brohus, Henrik

    2008-01-01

    As part of an improved quality assessment procedure at the School of Civil Engineering at Aalborg University, an online survey has been undertaken among all students. Due to external requirements and a wish for more structured feedback, an online questionnaire was presented to all students under...... the study board of civil engineering. The questionnaire was jointly developed for all study boards at Aalborg University. The questionnaire forms an investigation of students' satisfaction and evaluation of the overall structure of the education including self-reported performance assessment. The paper...

  17. Civil Engineering Applications of Ground Penetrating Radar: Research Perspectives in COST Action TU1208

    Science.gov (United States)

    Pajewski, Lara; Benedetto, Andrea; Loizos, Andreas; Slob, Evert; Tosti, Fabio

    2013-04-01

    . Protocols and guidelines for European Standards will be developed, for an effective application of GPR in civil engineering. A novel GPR will be designed and realized: a multi-static system, with dedicated software and calibration procedures, able to construct real-time lane three-dimensional high resolution images of investigated areas. Advanced electromagnetic-scattering and data-processing techniques will be developed. The understanding of relationships between geophysical parameters and civil-engineering needs will be improved. Freeware software will be released, for inspection and monitoring of structures and infrastructures, buried-object localization, shape reconstruction and estimation of useful parameters. A high level training program will be organized. Mobility of early career researchers will be encouraged. The scientific work-plan of the Action is open, to ensure that experts all over the world, who did not participate in the preparation of the proposal but are interested in the project, may join the Action and participate in its activities. More information about the project can be found at http://www.cost.eu/domains_actions/tud/Actions/TU1208.

  18. Identification of Civil Engineering Structures using Vector ARMA Models

    DEFF Research Database (Denmark)

    Andersen, P.

    The dissertation treats the matter of systems identification and modelling of load-bearing constructions using Auto-Regressive Moving Average Vector (ARMAV) models.......The dissertation treats the matter of systems identification and modelling of load-bearing constructions using Auto-Regressive Moving Average Vector (ARMAV) models....

  19. Computer aided system engineering for space construction

    Science.gov (United States)

    Racheli, Ugo

    1989-01-01

    This viewgraph presentation covers the following topics. Construction activities envisioned for the assembly of large platforms in space (as well as interplanetary spacecraft and bases on extraterrestrial surfaces) require computational tools that exceed the capability of conventional construction management programs. The Center for Space Construction is investigating the requirements for new computational tools and, at the same time, suggesting the expansion of graduate and undergraduate curricula to include proficiency in Computer Aided Engineering (CAE) though design courses and individual or team projects in advanced space systems design. In the center's research, special emphasis is placed on problems of constructability and of the interruptability of planned activity sequences to be carried out by crews operating under hostile environmental conditions. The departure point for the planned work is the acquisition of the MCAE I-DEAS software, developed by the Structural Dynamics Research Corporation (SDRC), and its expansion to the level of capability denoted by the acronym IDEAS**2 currently used for configuration maintenance on Space Station Freedom. In addition to improving proficiency in the use of I-DEAS and IDEAS**2, it is contemplated that new software modules will be developed to expand the architecture of IDEAS**2. Such modules will deal with those analyses that require the integration of a space platform's configuration with a breakdown of planned construction activities and with a failure modes analysis to support computer aided system engineering (CASE) applied to space construction.

  20. Safety engineering in handling fuels and lubricants in civil aviation

    Science.gov (United States)

    Protoereiskii, Aleksandr Stepanovich

    The book is concerned with methods of improving working conditions, work hygiene, safety engineering, and fire and explosion prevention during the storage and handling of petroleum products at fuel and lubricant storage facilities. The discussion covers methods of protection against static and atmospheric discharges, lightning protection, safety engineering in fuel and lubricant laboratories, and methods of fire prevention and fire extinction. Attention is also given to methods for administering first aid in case of accidents and poisoning.

  1. Utilization of electromigration in civil and environmental engineering - Processes, transport rates and matrix changes

    DEFF Research Database (Denmark)

    Ottosen, Lisbeth M.; Christensen, Iben Vernegren; Rörig-Dalgaard, Inge;

    2008-01-01

    Electromigration (movement of ions in an applied electric field) is utilized for supply or extraction of ions from various porous materials within both civil and environmental engineering. In civil engineering, most research has been conducted on the removal of chlorides from concrete to hinder...... reinforcement corrosion while in environmental engineering remediation of heavy metal polluted soil is the issue most studied. Never the less, experiments have been conducted with utilization for several other materials and purposes within both engineering fields. Even though there are many topics of common...... interest in the use of electromigration for the two fields, there is no tradition for collaboration. The present paper is a review with the aim of pointing out areas of shared interest. Focus is laid on the purposes of the different processes, transport rates of various ions in different materials...

  2. 75 FR 2463 - Continuing Contract for Civil Works Project Managed by the United States Army Corps of Engineers...

    Science.gov (United States)

    2010-01-15

    ... Corps of Engineers, may be used in solicitations and contracts for civil works water resource projects... Department of the Army 48 CFR Parts 5132, 5136, and 5152 RIN 0710-AA69 Continuing Contract for Civil Works Project Managed by the United States Army Corps of Engineers Clauses AGENCY: U.S. Army Corps of...

  3. M.Sc. in Civil and Structural Engineering:3rd Semester and Master’s Thesis Ideas 2014

    OpenAIRE

    2014-01-01

    The following pages contain a list of project ideas proposed by the scientific staff at the Department of Civil Engineering, Aalborg University, and a number of companies. Most of the project ideas in this catalogue may form the basis for long and short master projects as well as regular 3rd semester projects at the M.Sc. programme in Civil and Structural Engineering.

  4. M.Sc. in Civil and Structural Engineering:3rd Semester and Master’s Thesis Ideas 2011

    OpenAIRE

    2011-01-01

    This catalogue contains a list of project ideas proposed by the scientific staff at the Department of Civil Engineering, Aalborg University, and a number of companies. Most of the project ideas in this catalogue may form the basis for long and short candidate projects as well as regular 3rd semester projects at the M.Sc. programme in Civil and Structural Engineering.

  5. Vibration Based Damage Assessment of a Civil Engineering Structures using a Neural Networks

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning; Rytter, A.

    In this paper the possibility of using a Multilayer Perceptron (MLP) network trained with the Backpropagation Algorith as a non-destructive damage assessment technique to locate and quantify a damage in Civil Engineering structures is investigated. Since artificial neural networks are proving...

  6. CIVIL ENGINEERING TECHNOLOGY CONSULTANTS' WORKSHOP, REPORT OF PROCEEDINGS (ATLANTA, MAY 17-20, 1967).

    Science.gov (United States)

    DOBROVOLNY, JERRY S.

    THIS REPORT ATTEMPTS TO SHOW ADMINISTRATORS OF JUNIOR COLLEGES, TECHNICAL INSTITUTES, AND GOVERNMENT OR INDUSTRIAL TRAINING PROGRAMS CERTAIN CRITICAL PROBLEMS IN THE TRAINING OF CIVIL ENGINEERING TECHNICIANS. THE PHILOSOPHY OF TECHNICAL EDUCATION REQUIRES ATTENTION AS DOES THE IDENTIFICATION OF STUDENTS WHO CAN BENEFIT FROM AND SUCCESSFULLY…

  7. Optimal Design of Experiments for Parametric Identification of Civil Engineering Structures

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning

    Optimal Systems of experiments for parametric identification of civil engineering structures is investigated. Design of experiments for parametric identification of dynamic systems is usually done by minimizing a scalar measure, e.g the determinant, the trace ect., of an estimated parameter...

  8. Identification of Time Varying Civil Engineering Structures using Multivariate Recursive Time Domain Models

    DEFF Research Database (Denmark)

    Andersen, P.; Skjærbæk, P. S.; Kirkegaard, Poul Henning

    with the smoothed quanties which have been obtained from SARCOF. The results show the usefulness of the technique for identification of a time varying civil engineering structure. It is found that all the techniques give reliable estiates of the frequencies of the two lowest modes and the first mode shape. Only...

  9. On the Uncertainty of Identification of Civil Engineering Structures Using ARMA Models

    DEFF Research Database (Denmark)

    Andersen, Palle; Brincker, Rune; Kirkegaard, Poul Henning

    1995-01-01

    In this paper the uncertainties of modal parameters estimated using ARMA models for identification of civil engineering structures are investigated. How to initialize the predictor part of a Gauss-Newton optimization algorithm is put in focus. A backward-forecasting procedure for initialization...

  10. On the Uncertainty of Identification of Civil Engineering Structures using ARMA Models

    DEFF Research Database (Denmark)

    Andersen, P.; Brincker, Rune; Kirkegaard, Poul Henning

    In this paper the uncertainties of modal parameters estimated using ARMA models for identification of civil engineering structures are investigated. How to initialize the predictor part of a Gauss-Newton optimization algorithm is put in focus. A backward-forecasting procedure for initialization...

  11. Assessment by Employers of Newly Graduated Civil Engineers from the Islamic University of Gaza

    Science.gov (United States)

    Enshassi, Adnan; Hassouna, Ahmed

    2005-01-01

    The evaluation process is very important to identify and recognize the strengths and the weaknesses of graduated students. The purpose of this paper is to evaluate the performance of the newly graduated civil engineers from the Islamic University of Gaza in Palestine. The methodology was based on questionnaires and informal interview. The…

  12. Report for Working Group 1: Design Research in Civil and Environmental Engineering

    DEFF Research Database (Denmark)

    Thompson, Mary Kathryn; Paradisi, Irene

    2013-01-01

    The first 2013 DCEE working group meeting focused on issues associated with design research in civil and environmental engineering. It addressed some of the motivation for establishing design as a research discipline in CEE and some of the challenges and outstanding questions about how to do so....

  13. Use of Statistical Information for Damage Assessment of Civil Engineering Structures

    DEFF Research Database (Denmark)

    Kirkegaard, Poul Henning; Andersen, P.

    This paper considers the problem of damage assessment of civil engineering structures using statistical information. The aim of the paper is to review how researchers recently have tried to solve the problem. It is pointed out that the problem consists of not only how to use the statistical...

  14. Non-destructive testing in civil engineering (NDT-CE). Vol. 2. Posters

    Energy Technology Data Exchange (ETDEWEB)

    Schickert, G. [ed.; Wiggenhauser, H. [ed.

    1995-12-31

    This volume contains about more than 80 posters which were presented at the International Symposium on Non-Destructive Testing in Civil Engineering from September 26 to 28, 1995 in Berlin. The topics on NDT methods are: Acoustic emission, impact echo; Building dynamics, soils; Case studies; IR-thermography; Material properties; Moisture; Monitoring, sensors; Radar, electromagnetic methods; Reinforcements, corrosion; Ultrasonics; Special interest. (MM) (MM)

  15. Free Fall Misconceptions: Results of a Graph Based Pre-Test of Sophomore Civil Engineering Students

    Science.gov (United States)

    Montecinos, Alicia M.

    2014-01-01

    A partially unusual behaviour was found among 14 sophomore students of civil engineering who took a pre test for a free fall laboratory session, in the context of a general mechanics course. An analysis contemplating mathematics models and physics models consistency was made. In all cases, the students presented evidence favoring a correct free…

  16. Embedded optical fiber sensors for continuous health monitoring of civil engineering structures in composite materials

    OpenAIRE

    Chapeleau, Xavier; Drissi Habti, Monssef; Tomiyama, Tomonori

    2010-01-01

    Embedding optical fibre-based sensors into composite structures in civil engineering is a promising alternative for structural health monitoring (SHM). This article is a review of the main sensing techniques based on optical fibres. Localized and multiplexed measurements as well as distributed measurements techniques are presented.

  17. Information management in civil engineering infrastructural development: with focus on geological and geotechnical information

    NARCIS (Netherlands)

    Tegtmeier, W.; Zlatanova, S.; Van Oosterom, P.J.M.; Hack, H.R.G.K.

    2009-01-01

    In civil engineering infrastructural projects, information exchange and (re-) use in and between involved parties is difficult. This is mainly caused by a lack of information harmonization. Various specialists are working together on the development of an infrastructural project and are all using th

  18. Assessing efficiency of road contracts can lead to less risk, more innovation says civil engineer

    OpenAIRE

    Nystrom, Lynn A.

    2008-01-01

    The most recent survey of the nation's highway infrastructure, conducted by the American Society of Civil Engineers in 2005, indicated that the U.S. road system is in poor condition, a marked contrast from the 1988 survey by the National Council on Public Works Improvement. At that time, the nation's roads were cited to be in better than fair condition.

  19. Air Force Institute of Technology, Civil Engineering School: Environmental Protection Course.

    Science.gov (United States)

    Air Force Inst. of Tech., Wright-Patterson AFB, OH. School of Engineering.

    This document contains information assembled by the Civil Engineering School to meet the initial requirements of NEPA 1969 and Executive Orders which required the Air Force to implement an effective environmental protection program. This course presents the various aspects of Air Force environmental protection problems which military personnel…

  20. A Sustainable Cohort of Professional Civil Engineering Graduates? Uncovering the United Kingdom Graduate Crisis

    Science.gov (United States)

    Edwards, David J.; Dainty, Andrew R. J.; Love, Peter E. D.

    2004-01-01

    Undergraduate applications to civil engineering courses have been declining at an alarming rate despite the industry's healthy economic activity. Concerns abound as to the long-term impact of this decline as the sector is already suffering skills shortages across virtually all of its occupations. This paper investigates the likely future trends in…

  1. Case Study of a Project-Based Learning Course in Civil Engineering Design

    Science.gov (United States)

    Gavin, K.

    2011-01-01

    This paper describes the use of project-based learning to teach design skills to civil engineering students at University College Dublin (UCD). The paper first considers the development of problem-based leaning (PBL) as a tool in higher education. The general issues to be considered in the design of the curriculum for a PBL module are reviewed.…

  2. Efforts to Manage Disputes in the Construction Industry: A Comparison of the New Engineering Contract and the Dispute Review Board

    OpenAIRE

    Thompson, Roxene Marie II

    1998-01-01

    The construction industry has been plagued with an increasing number of claims and high litigation costs. How do we reduce conflict and litigation in the construction process? On one hand, leaders of the construction industry in the United States (US) focused their efforts on improving alternative dispute resolution mechanisms. For instance, the American Society of Civil Engineers has introduced the Dispute Review Board (DRB) as a complementary provision to standard US construction practic...

  3. Linking Civil Engineering Education And Research With Industry (Session Keynote)

    DEFF Research Database (Denmark)

    Virdi, Kuldeep

    Linking engineering education with industry has been a basic aim of educators almost from the beginning of modern degree programmes. In the USA, reference is often made to ‘co-operative education’, where students spend periods in industry within the duration of their stay in a university. Indeed...

  4. Identification of Civil Engineering Structures using Vector ARMA Models

    DEFF Research Database (Denmark)

    Andersen, Palle; Brincker, Rune; Kirkegaard, Poul Henning

    1998-01-01

    This paper describes the work which have been carried out in the project B.1: Damage Detection in Structures under Random Loading. The project is a part of the research programme Dynamics of Structures founded by the Danish Technical Research Council. The planned contents of and the requirements ...... Dept. of Building Technology and Structural Engineering, Aalborg University....

  5. Measured Engine Installation Effects of Four Civil Transport Airplanes

    Science.gov (United States)

    Senzig, David A.; Fleming, Gregg G.; Shepherd, Kevin P.

    2001-01-01

    The Federal Aviation Administration's Integrated Noise Model (INM) is one of the primary tools for land use planning around airports. The INM currently calculates airplane noise lateral attenuation using the methods contained in the Society of Automotive Engineer's Aerospace Information Report No. 1751 (SAE AIR 1751). Researchers have noted that improved lateral attenuation algorithms may improve airplane noise prediction. The authors of SAE AIR 1751 based existing methods on empirical data collected from flight tests using 1960s-technology airplanes with tail-mounted engines. To determine whether the SAE AIR 1751 methods are applicable for predicting the engine installation component of lateral attenuation for airplanes with wing-mounted engines, the National Aeronautics and Space Administration (NASA) sponsored a series of flight tests during September 2000 at their Wallops Flight Facility. Four airplanes, a Boeing 767-400, a Douglas DC-9, a Dassault Falcon 2000, and a Beech KingAir, were flown through a 20 microphone array. The airplanes were flown through the array at various power settings, flap settings, and altitudes to simulate take-off and arrival configurations. This paper presents the preliminary findings of this study.

  6. Doublet III construction and engineering test

    International Nuclear Information System (INIS)

    Progress during FY-78 on the construction and operation of the Doublet III is reported. Detailed discussions about the installation and testing of various components and subsystems, including the B-coil, E-coil, F-coils and support structure, vacuum vessel, vacuum pumping system, limiter, thermal insulation blanket, control system, B-coil power system, E-coil power system, F-coil power system, and motor-generator, are presented. A brief review of the engineering test operation is given

  7. Proceedings [of the] 1994 annual conference [of the] Canadian Society for Civil Engineering. Comptes rendus [du] congres annuel 1994 [de la] Societe Canadienne de Genie Civil

    Energy Technology Data Exchange (ETDEWEB)

    1994-01-01

    The third of four volumes of a conference on civil engineering presented papers on environmental engineering, including water and wastewater treatment, water quality management, solid and liquid waste treatment, non-point source pollution and hydraulics, urban drainage problems, and soil and groundwater contamination. Separate abstracts have been prepared for 6 papers from the volume.

  8. Civil-engineering work for Linac 4 and related roadworks - information for drivers

    CERN Multimedia

    TS Department

    2008-01-01

    The civil-engineering work for the construction of the Linac 4 accelerator will start on 22 October on the Mont Citron, the mound just opposite Restaurant No. 2 between the Computer Centre and the PS complex. Initially the work will involve excavating the mound and transporting the spoil to the area in front of Building SM18. This first phase of work will last for about five months until April 2009. The large number of lorries will cause disruption to traffic on the Route Rutherford, part of the Route Einstein and in the transfer tunnel between the two sites. Traffic lights for alternating traffic will be in operation at each end of the tunnel since there is insufficient room for two lorries travelling in opposite directions to use it at the same time. Consequently, users are strongly recommended not to use the tunnel except for transporting equipment between the two sites. Users not transporting equipment are strongly recommended to use Gates A and B. In parallel, a temporary roundabout will be installed ...

  9. [Civil engineering education at the Imperial College of Engineering in Tokyo: an analysis based on Ayahiko Ishibashi's memoirs].

    Science.gov (United States)

    Wada, Masanori

    2014-01-01

    The Imperial College of Engineering (ICE or Kobu-Daigakko) in Tokyo, founded in 1873 under the auspices of the Ministry of Public Works, was one of the most prominent modern institutions of engineering education in early Meiji Japan. Previous studies have revealed that the ICE offered large scale practical training programs at enterprises of the Ministry, which sometimes lasted several months, and praised their ideal combination of theory and practice. In reality, it has been difficult to evaluate the quality of education at the ICE mainly because of scarcity of sources. ICE students published a collection of memoirs for alumni members, commemorating the fiftieth-year of the history of the Tokyo Imperial University. Drawing on the previously neglected collection of students' memoires, this paper appraises the education of civil engineering offered by the ICE. The paper also compares this collection with other official records of the college, and confirms it as a reliable source, even though it contains some minor errors. The author particularly uses the memoirs by Ayahiko Ishibashi, one of the first graduates from its civil engineering course, who left sufficient reminiscences on education that he received. This paper, as a result, illustrates that the main practical training for the students of civil engineering was limited to designing process, including surveying. Furthermore, practical training that Ishibashi received at those enterprises often lacked a plan, and its effectiveness was questionable.

  10. Challenges and Opportunities for Establishing Design as a Research Discipline in Civil and Environmental Engineering

    DEFF Research Database (Denmark)

    Thompson, Mary Kathryn

    2013-01-01

    faculty, research and education communities, conferences, and journals. However, design remains an emerging sub-discipline in civil and environmental engineering – practiced, valued, and taught but not subject to rigorous academic research. This paper presents some of the challenges associated...... with the establishment of design as a research discipline within civil and environmental engineering, some of the benefits and opportunities that will come from that establishment, and some evidence for the fact that this process has already begun.......There are a number of fields including architecture, industrial design, and urban planning and design, where design is the discipline upon which all research and teaching activities are based. In other fields such as aerospace and mechanical engineering, design is a sub-discipline with its own...

  11. Investigation of low NOx staged combustor concept in high-speed civil transport engines

    Science.gov (United States)

    Nguyen, Hung Lee; Bittker, David A.; Niedzwiecki, Richard W.

    1989-01-01

    Levels of exhaust emissions due to high temperatures in the main combustor of high-speed civil transport (HSCT) engines during supersonic cruise are predicted. These predictions are based on a new combustor design approach: a rich burn/quick quench/lean burn combustor. A two-stage stirred reactor model is used to calculate the combustion efficiency and exhaust emissions of this novel combustor. A propane-air chemical kinetics model is used to simulate the fuel-rich combustion of jet fuel. Predicted engine exhaust emissions are compared with available experimental test data. The effect of HSCT engine operating conditions on the levels of exhaust emissions is also presented. The work described in this paper is a part of the NASA Lewis Research Center High-Speed Civil Transport Low NO(x) Combustor program.

  12. EVALUATION FOR JUDGMENT CRITERIA OF REPAIR ON CIVIL ENGINEERING STRUCTURE BY SUPPORT VECTOR MACHINE

    Science.gov (United States)

    Yuki, Kazunori; Kobayashi, Hiroki; Ohishi, Hiroyuki; Sugimoto, Hiroyuki; Iida, Takeshi; Furukawa, Kohei

    In this study, setting method for judgment criteria for repair of civil engineering structures is analyzed by the use of inspection and repair record of expansion joint of bridges with the Support Vector Machine. The Support Vector Machine is a technique used to apply for setting of risk degree of disasters on natural slopes. However it is needed that effective exclusion method of noise data has to be considered to apply for the analysis of the setting method. Therefore the noise data is excluded objectively in order that high confidence data can be extracted from the record. In this way setting the method can be developed. As a result of this study, it can be shown that the setting method by Support Vector Machine is effective as a tool for maintenance management plan of civil engineering structures since the method has a high integrity with evaluation by professional engineer.

  13. Engine oil as a construction element; Das Motoroel als Konstruktionselement

    Energy Technology Data Exchange (ETDEWEB)

    Luther, R. [Fuchs Europe Schmierstoffe GmbH, Mannheim (Germany)

    2005-07-01

    Engine oil as parameter for the development of engines; lowering of internal friction by coordination of lubricant, materials, geometry of engine components and load, reduction of critical additives in engine oils for lower impact on engine emissions and after-treatment systems - changes of additive systems; new viscosities; actual requirements with regard to oil change intervals; influence of modern engine constructions. (orig.)

  14. Proceedings [of the] 1994 annual conference [of the] Canadian Society for Civil Engineering. Comptes rendus [du] congres annuel 1994 [de la] Societe Canadienne de Genie Civil

    Energy Technology Data Exchange (ETDEWEB)

    1994-01-01

    The fourth of four volumes of a conference on civil engineering presented papers on engineering mechanics, including dynamics and vibrations, computational modelling, porous media, geomechanics, fluid mechanics, finite element methods, structural dynamics, mechanics of materials, computer-aided engineering and optimization, boundary element methods, stress analysis, mechanics of composites and damage, and structural stability. Separate abstracts have been prepared for 12 papers from the volume.

  15. PERFORMANCE OF PROJECTN MANAGEMENT IN CIVIL CONSTRUCTION AT SUGAR AND ALCOHOL PLANTS

    Directory of Open Access Journals (Sweden)

    Leandro Parras Meleiro

    2014-04-01

    Full Text Available This article reports a study case on performance of project management in civil construction at sugarcane and alcohol plants. The survey was conducted in sugarcane and alcohol plant in Barra Bonita, São Paulo state, Brazil, which is a joint venture formed by the world´s largest sugar cane processor as well as one of the largest world´s fuel distributors. Brazil is the world's largest sugarcane producer and the second one of bioethanol. São Paulo state is the biggest national producer with approximately 60% of production. This fact boosted the investment of foreign groups in this sector. Historically, civil projects were managed by employees themselves sometimes with no experience in project management and without the use of adequate criteria, tools and methods. With the arrival of investors, improvement projects have become indispensable, teams sought for improvement and project managers have gained strength. This paper aims at showing the performance of a management at sugarcane and alcohol plant in civil construction projects, demonstrating the relationship between involved parties and the benefits achieved with the implementation of established management methods for the conducting these projects.

  16. Sustainable Development Strategy of Civil Engineering%土木工程可持续发展战略浅析

    Institute of Scientific and Technical Information of China (English)

    杨跃

    2013-01-01

      伴随着社会经济的发展,现代科学日益进步,土木工程得到了长足的发展,在快速的发展过程中,不可避免的对经济发展环境造成了相当大的影响。通过对土木工程发展的审视,我们发现,我们正面临着一个伴随着国民经济飞跃的土木工程大发展的大好时期。而且这样一个优良的发展环境已经受到并将继续受到世界所有国家的关注。但是我们需要注意的是要实现人类同环境的协调发展,创造美好家,就要走可持续发展的道路。随着国家对以基础设施建设力度的加大,工业与民用建筑,矿山建设,公路建设得到迅猛发展,造成的对环境的影响越来越受到社会的关注。基础建设对社会和经济的发展有着非常重要的带动作用,但它同时产生对破坏环境产生严重影响。此,如何在土木工程建设发展的同时,保护生态环境,节约土地,并处理好同社会、经济的关系,进而实现可持续发展,是一个值得我们仔细研究的课题。%With the social and economic development and modern science and technology increasingly advanced, civil engineering has been considerable development. In the process of rapid development, it is inevitable to bring huge influence on the environment of economic development. Through reviewing the development of civil engineering, we find that now it is a good time that the civil engineering develops with the development of national economy. The good development environment has attracted the attention from the globe. To realize the harmonious development of human being and environment and build beautiful homes, we should adhere to the path of sustainable development. With the increase of the state of infrastructure construction, industrial and civil construction, mine construction, and highway construction has obtained the rapid development, the impact on the environment attracts more and more

  17. Buffer mass test - Rock drilling and civil engineering

    International Nuclear Information System (INIS)

    The buffer mass test (BMT) is being run in the former 'ventilation drift' in which a number of rock investigations were previously conducted. A number of vertical pilot holes were drilled from the tunnel floor to get information of the water inflow in possible heater hole position. The final decision of the location of the heater holes was then made, the main principle being that much water should be available in each hole with the possible exception of one of the holes. Thereafter, the diameter 0.76 m heater holes were drilled to a depth of 3-3.3 m. Additional holes were then drilled for rock anchoring of the lids of the four outer heater holes, for the rock mechanical investigation, as well as for a number of water pressure gauges. The inner, about 12 m long part of the tunnel, was separated from the outer by bulwark. The purpose of this construction was to confine a backfill, the requirements of the bulwark being to withstand the swelling pressure as well as the water pressure. Outside the bulwark an approximately 1.5-1.7 m thick concrete slab was cast on the tunnel floor, extending about 24.7 m from the bulwark. Boxing-outs with the same height as the slab and with the horizontal dimensions 1.8 x 1.8 m, were made and rock-anchored concrete lids were cast on top of them after backfilling. The slab which thus represents 'rock', also forms a basal support of the bulwark. The lids permits access to the backfill as well as to the underlying, highly compacted bentonite for rapid direct determination of the water distributin at the intended successive test stops. The construction of the slab and lids will be described in this report. (Author)

  18. A new experience: the course of ethics in engineering in the Department of Civil Engineering, University of Granada.

    Science.gov (United States)

    Gil-Martín, Luisa María; Hernández-Montes, Enrique; Segura-Naya, Armando

    2010-06-01

    A course in professional ethics for civil engineers was taught for the first time in Spain during the academic year 2007/08. In this paper a survey on the satisfaction and expectation of the course is presented. Surprisingly the students sought moral and ethical principles for their own ordinary lives as well as for their profession. Students were concerned about the law, but in their actions they were more concerned with their conscience, aware that it can be separate from the law.

  19. Laser ultrasonics for civil engineering : some applications in development for concrete non destructive testing

    International Nuclear Information System (INIS)

    Non destructive testing of civil engineering infrastructures is becoming of primary importance for their diagnosis, residual time life estimation and/or structural health monitoring. A particularity of civil engineering application is the large size of the survey zones and the expected low cost of inspection. In this context non contact ultrasonics may offer the possibility to built robots that can automatically scan large areas (or eventually be integrated in moving vehicles) to recover mechanical properties of material or to perform imagery for geometrical information recovery. In this paper we present two possible applications of in situ laser ultrasonics : one is the detection of voids in tendon duct with the impact echo method, the other is the use of surface waves to recover mechanical properties of the first centimetres of concrete structures (here after called cover concrete).

  20. Standard Practice for Evaluating Material Property Characteristic Values for Polymeric Composites for Civil Engineering Structural Applications

    CERN Document Server

    American Society for Testing and Materials. Philadelphia

    2006-01-01

    1.1 This practice covers the procedures for computing characteristic values of material properties of polymeric composite materials intended for use in civil engineering structural applications. The characteristic value is a statistically-based material property representing the 80 % lower confidence bound on the 5th-percentile value of a specified population. Characteristic values determined using this standard practice can be used to calculate structural member resistance values in design codes for composite civil engineering structures and for establishing limits upon which qualification and acceptance criteria can be based. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

  1. Non-destructive testing in civil engineering (NDT-CE). Vol. 1. Lectures

    Energy Technology Data Exchange (ETDEWEB)

    Schickert, G. [ed.; Wiggenhauser, H. [ed.

    1995-12-31

    This volume contains about 100 lectures which were presented at the International Symposium on Non-Destructive Testing in Civil Engineering in Berlin. The topical sessions on NDT methods are dealing with: Structures, bridges; Simulation; Corrosion; Moisture; Magnetic and electrical methods; Interferometry; Quality control; Ultrasound; Building dynamics; Building inspection; Soils, piles, subsurface detection; Case studies; Impact echo; Materials; Monitoring; Acoustic emission, Electro acoustics; Historical monuments, masonry; Radar; IR-thermography, radiation; Reinforcements. (MM) (MM)

  2. A review on smart self-sensing composite materials for civil engineering applications

    OpenAIRE

    Sohel Rana; Subramani P; Raul Fangueiro; Antonio Gomes Correia

    2016-01-01

    Self-sensing composites are becoming highly attractive for civil engineering applications to improve the safety and performance of structures. These smart composites show a detectable change in their electrical resistivity with applied stress or strain and this unique characteristic make them useful for health monitoring of structures. Till date, different forms of carbon composites, i.e. short fibre, continuous fibre, particles, nano fibres, nanotubes, etc. have been utilized for this purpos...

  3. Polymer adhesives in civil engineering : effect of environmental parameters on thermomechanical properties

    OpenAIRE

    BENZARTI, K; Pastor, M.; CHAUSSADENT, T; THAVEAU, MP

    2002-01-01

    In this work, aging of two ambient curing thermoset polymers (an epoxy system and a plyester based mortar), commonly used for civil engineering applications, has been investigated. In a first part, microstructural evolutions of the adhesives in a standard environment (50% relative humidity, 20°C) were studied. The polymerization kinetics of the epoxy system was monitored by infrared spectroscopy and differential scanning calorimetry (DSC). These experiments showed that the crosslinking proces...

  4. Airborne remote sensors applied to engineering geology and civil works design investigations

    Science.gov (United States)

    Gelnett, R. H.

    1975-01-01

    The usefulness of various airborne remote sensing systems in the detection and identification of regional and specific geologic structural features that may affect the design and location of engineering structures on major civil works projects is evaluated. The Butler Valley Dam and Blue Lake Project in northern California was selected as a demonstration site. Findings derived from the interpretation of various kinds of imagery used are given.

  5. The Post Cold War Civil Engineer Corps : what has changed and why

    OpenAIRE

    Ammons, Tony L

    1997-01-01

    Approved for public release; distribution is unlimited With the end of the Cold War the military services have experienced significant cuts in endstrength. Within the Navy, the Civil Engineer Corps (CEC) has also experienced some reductions. This thesis sought to determine how CEC endstrength is derived and whether it declined commensurate with overall naval officer endstrength. The command and billet structures for the CEC in 1986 and 1996 were used to represent the Cold War and Post Cold...

  6. Virtual Placements to Develop Employability Skills for Civil and Environmental Engineering Students

    OpenAIRE

    Parneet Paul

    2015-01-01

    This project work addresses the crucial need to encourage undergraduate civil and environmental engineering students to gain employment skills and training right from the start of their studies so that their overall employability increases; their confidence level in networking with industry and within the workplace increases; and so that they are successfully able to obtain employment after finishing their studies. This initiative is a stepping-stone employability exercise which focuses sp...

  7. A review of distributed optical fiber sensors for civil engineering applications

    OpenAIRE

    António Barrias; Casas, Joan R.; Sergi Villalba

    2016-01-01

    The application of structural health monitoring (SHM) systems to civil engineering structures has been a developing studied and practiced topic, that has allowed for a better understanding of structures’ conditions and increasingly lead to a more cost-effective management of those infrastructures. In this field, the use of fiber optic sensors has been studied, discussed and practiced with encouraging results. The possibility of understanding and monitor the distributed behavior of extensive s...

  8. Web-based Peer Assessment: A Case Study with Civil Engineering Students

    OpenAIRE

    Gonçalo Cruz; Caroline Dominguez; Ana Maia; Daniela Pedrosa; Gordon Grams

    2013-01-01

    Peer-assessed online collaborative writing is of growing importance for higher education. Based on the quantitative and qualitative analysis of collected data, this work presents the results of a case study in a graduate civil engineering course at the University of Trás-os-Montes e Alto Douro, Vila Real, Portugal. After an overall presentation of the learning activity, it examines students’ attitudes towards web-based peer assessment and identifies which factors are rela...

  9. Civil engineering at the crossroads in the twenty-first century.

    Science.gov (United States)

    Ramírez, Francisco; Seco, Andres

    2012-12-01

    The twenty-first century presents a major challenge for civil engineering. The magnitude and future importance of some of the problems perceived by society are directly related to the field of the civil engineer, implying an inescapable burden of responsibility for a group whose technical soundness, rational approach and efficiency is highly valued and respected by the citizen. However, the substantial changes in society and in the way it perceives the problems that it considers important call for a thorough review of our structures, both professional and educational; so that our profession, with its undeniable historical prestige, may modernize certain approaches and attitudes in order to continue to be a reliable instrument in the service of society, giving priority from an ethical standpoint to its actions in pursuit of "the public good". It possesses important tools to facilitate this work (new technologies, the development of communications, the transmission of scientific thought.···); but there is nevertheless a need for deep reflection on the very essence of civil engineering: what we want it to be in the future, and the ability and willingness to take the lead at a time when society needs disinterested messages, technically supported, reasonably presented and dispassionately transmitted.

  10. Civil engineering at the crossroads in the twenty-first century.

    Science.gov (United States)

    Ramírez, Francisco; Seco, Andres

    2012-12-01

    The twenty-first century presents a major challenge for civil engineering. The magnitude and future importance of some of the problems perceived by society are directly related to the field of the civil engineer, implying an inescapable burden of responsibility for a group whose technical soundness, rational approach and efficiency is highly valued and respected by the citizen. However, the substantial changes in society and in the way it perceives the problems that it considers important call for a thorough review of our structures, both professional and educational; so that our profession, with its undeniable historical prestige, may modernize certain approaches and attitudes in order to continue to be a reliable instrument in the service of society, giving priority from an ethical standpoint to its actions in pursuit of "the public good". It possesses important tools to facilitate this work (new technologies, the development of communications, the transmission of scientific thought.···); but there is nevertheless a need for deep reflection on the very essence of civil engineering: what we want it to be in the future, and the ability and willingness to take the lead at a time when society needs disinterested messages, technically supported, reasonably presented and dispassionately transmitted. PMID:21380736

  11. Radiation control aspects of the civil construction for a high power free electron laser (FEL) facility

    Energy Technology Data Exchange (ETDEWEB)

    Dunn, T.; Neil, G.; Stapleton, G.

    1996-12-31

    The paper discusses some of the assumptions and methods employed for the control of ionizing radiation in the specifications for the civil construction of a planned free electron laser facility based on a 200 MeV, 5 mA superconducting recirculation electron accelerator. Consideration is given firstly to the way in which the underlying building configuration and siting aspects were optimized on the basis of the early assumptions of beam loss and radiation goals. The various design requirements for radiation protection are then considered, and how they were folded into an aesthetically pleasing and functional building.

  12. Propaganda and the construction of a war culture in Spain during the Civil War

    Directory of Open Access Journals (Sweden)

    Francisco SEVILLANO CALERO

    2015-03-01

    Full Text Available This article analyses the war propaganda during the Civil War and the first years of the Francoist “New State». Recent work has addressed the construction of the image of the enemy on the basis of the prevailing stereotypes, and how General Franco’s persona was transfigured symbolically through the development of a charismatic image within the rhetoric, rites and liturgies of the ‘New State». This propaganda helped spread a culture of war from 1936 to 1939 and beyond.

  13. Long-term lining performance - Civil engineering problem of potential retrieval of buried spent nuclear fuel

    Energy Technology Data Exchange (ETDEWEB)

    Vasicek, Radek, E-mail: radek.vasicek@fsv.cvut.c [Czech Technical University in Prague, Faculty of Civil Engineering, Centre of Experimental Geotechnics, Thakurova 7, 16629 Prague 6 (Czech Republic); Svoboda, Jiri, E-mail: jiri.svoboda@seznam.c [Czech Technical University in Prague, Faculty of Civil Engineering, Centre of Experimental Geotechnics, Thakurova 7, 16629 Prague 6 (Czech Republic)

    2011-04-15

    The current solution for the spent fuel, high-level and long-lived radioactive waste is to store them at surface facilities from which they will be subsequently moved to a deep repository. No such repositories are in operation currently but several such facilities are close to the construction phase. A deep repository can be situated in several types of geological conditions including clay formations, salt sediments, argillites and tuffitic and granitic rocks. The character of the host rock is the key factor determining the design and specific requirements of individual components of such a facility. The future potential retrieval of canisters containing nuclear waste from the repository is a further influential factor. The reason for retrieval of containers lies in the development of fast reactors and increased interest for spent fuel reprocessing. Naturally, the decision as to whether retrievability is technically feasible must be made before finalising the design and construction process of the repository. If the decision is made to retrieve, a design which will include all the relevant safety aspects for the potential retrieval of canisters must be determined. The lay-out of the repository, the materials to be used and the design of the various structures of the facility (e.g. access tunnels, disposal shafts, buffer and backfill) are not the only issues to be addressed. The long-term stability of the system as a whole, i.e. of all the components, is crucial. Depending on the disposal concept chosen, the thermal load generated by the waste in the disposal container, saturation by water from the surrounding environment and the loading of the host rock massif will constitute the main processes which will affect the behaviour, safety and future functioning of the repository from the civil engineering point of view. The long-term stability of the lining of disposal galleries is a basic precondition for the safe removal of spent nuclear waste from deep underground

  14. Defining Gas Turbine Engine Performance Requirements for the Large Civil TiltRotor (LCTR2)

    Science.gov (United States)

    Snyder, Christopher A.

    2013-01-01

    Defining specific engine requirements is a critical part of identifying technologies and operational models for potential future rotary wing vehicles. NASA's Fundamental Aeronautics Program, Subsonic Rotary Wing Project has identified the Large Civil TiltRotor (LCTR) as the configuration to best meet technology goals. This notional vehicle concept has evolved with more clearly defined mission and operational requirements to the LCTR-iteration 2 (LCTR2). This paper reports on efforts to further review and refine the LCTR2 analyses to ascertain specific engine requirements and propulsion sizing criteria. The baseline mission and other design or operational requirements are reviewed. Analysis tools are described to help understand their interactions and underlying assumptions. Various design and operational conditions are presented and explained for their contribution to defining operational and engine requirements. These identified engine requirements are discussed to suggest which are most critical to the engine sizing and operation. The most-critical engine requirements are compared to in-house NASA engine simulations to try to ascertain which operational requirements define engine requirements versus points within the available engine operational capability. Finally, results are summarized with suggestions for future efforts to improve analysis capabilities, and better define and refine mission and operational requirements.

  15. Analysis of the acquired subject-specific competences at the university studies of civil engineering in communal course

    OpenAIRE

    Leban, Kaja

    2015-01-01

    The purpose of the thesis is to analyze the acquired subject-specific competences at the study of university level of civil engineering – communal course. We are interested in particular if the subject-specific competences which the graduates acquire are appropriate, have enough depth and if they meet their expectations and also meet the demands and expectations of the job market. The assumed working hypothesis is that graduates at the university level of civil engineering – communal course –...

  16. Civil Engineering Applications of Ground Penetrating Radar Recent Advances @ the ELEDIA Research Center

    Science.gov (United States)

    Salucci, Marco; Tenuti, Lorenza; Nardin, Cristina; Oliveri, Giacomo; Viani, Federico; Rocca, Paolo; Massa, Andrea

    2014-05-01

    -set-based optimization have been developed for the qualitative reconstruction of multiple and disconnected homogeneous scatterers [5]. Finally, the real-time detection and classification of subsurface scatterers has been investigated by means of learning-by-examples (LBE) techniques, such as Support Vector Machines (SVM) [6]. Acknowledgment - This work was partially supported by COST Action TU1208 'Civil Engineering Applications of Ground Penetrating Radar' References [1] M. Salucci, D. Sartori, N. Anselmi, A. Randazzo, G. Oliveri, and A. Massa, 'Imaging Buried Objects within the Second-Order Born Approximation through a Multiresolution Regularized Inexact-Newton Method', 2013 International Symposium on Electromagnetic Theory (EMTS), (Hiroshima, Japan), May 20-24 2013 (invited). [2] A. Giannopoulos, 'Modelling ground penetrating radar by GprMax', Construct. Build. Mater., vol. 19, no. 10, pp.755 -762 2005 [3] L. Poli, G. Oliveri, P. Rocca, and A. Massa, "Bayesian compressive sensing approaches for the reconstruction of two-dimensional sparse scatterers under TE illumination," IEEE Trans. Geosci. Remote Sensing, vol. 51, no. 5, pp. 2920-2936, May. 2013. [4] L. Poli, G. Oliveri, and A. Massa, "Imaging sparse metallic cylinders through a Local Shape Function Bayesian Compressive Sensing approach," Journal of Optical Society of America A, vol. 30, no. 6, pp. 1261-1272, 2013. [5] M. Benedetti, D. Lesselier, M. Lambert, and A. Massa, "Multiple shapes reconstruction by means of multi-region level sets," IEEE Trans. Geosci. Remote Sensing, vol. 48, no. 5, pp. 2330-2342, May 2010. [6] L. Lizzi, F. Viani, P. Rocca, G. Oliveri, M. Benedetti and A. Massa, "Three-dimensional real-time localization of subsurface objects - From theory to experimental validation," 2009 IEEE International Geoscience and Remote Sensing Symposium, vol. 2, pp. II-121-II-124, 12-17 July 2009.

  17. Handling Low-Density LiDAR Data: Calculating the Heights of Civil Constructions and the Accuracy Expected

    OpenAIRE

    Rubén Martínez Marín; Elena Lianes Revilla; Juan Carlos Ojeda Manrique; Miguel Marchamalo Sacristán

    2013-01-01

    During the last years, in many developed countries, administrations and private companies have devoted considerable amounts of money to obtain mapping data using airborne LiDAR. For many civil activities, we can take advantage of it, since those data are available with no cost. Some important questions arise: Are those data good enough to be used for determining the heights of the civil constructions with the accuracy we need in some civil work? What accuracy can we expect when using low-dens...

  18. Problems in Civil Engineering Cost Management and Measures%土建工程造价管理存在的问题及措施分析

    Institute of Scientific and Technical Information of China (English)

    阮立娟

    2014-01-01

    At present, accompanied by an expansion of the scale in civil engineering and construction, civil engineering cost management has gradually been put on the agenda. This paper discusses the main problems in cost management in the current period, and puts forward the corresponding measures to solve the problem accordingly.%现阶段,伴随土木建筑工程规模的日益扩大,土建工程的造价管理逐渐被提上议事日程。本文主要针对当前一个时期内造价管理的主要问题进行论述,据此提出相应的解决问题的措施。

  19. Surface Engineering Construction of Sichuan Natural Gas Industry

    Institute of Scientific and Technical Information of China (English)

    You Kaicheng

    1995-01-01

    @@ The Present Status of Surface Engineering Construction A comparatively integrate and systematic surface engineering system, including gas gathering, purification transportation and distribution facilities, which approaches the international technical level, has been established. (Fig. 1)

  20. News in engineering education in Spain effective from 2010 in presence of external changes and mixed crisis, looking mostly to agro and civil engineers.

    OpenAIRE

    Antón Corrales, José Manuel; Grau Olive, Juan Bautista; Tarquis Alfonso, Ana Maria; Andina de la Fuente, Diego; Sanchez Oreja, Maria Elena

    2012-01-01

    The engineering careers models were diverse in Europe, and are adopting now in Spain the Bolonia process for European Universities. Separated from older Universities, that are in part technically active, Civil Engineering (Caminos, Canales y Puertos) started at end of 18th century in Spain adopting the French models of Upper Schools for state civil servants with exam at entry. After 1800 intense wars, to conserve forest regions Ingenieros de Montes appeared as Upper School, and in 1855 also t...

  1. Construction of Tissue Engineering Artificial Cornea with Skin Stem Cells

    Institute of Scientific and Technical Information of China (English)

    Yuan LIU; Yan JIN

    2005-01-01

    @@ 1 Introduction The clinical need for an alternative to donor corneal tissue has encouraged much interests in recent years. An artificial cornea must fulfill the functions of the cornea it replaces. More recently, the idea of a bio-engineered cornea has risen. Corneal equivalents have been reconstructed by tissue engineering method. Aim of this study is to construct an artificial rabbit cornea by employing tissue engineering method and to determine if skin stem cells have a role in tissue engineered cornea construction.

  2. Exploring Advanced Technology Gas Turbine Engine Design and Performance for the Large Civil Tiltrotor (LCTR)

    Science.gov (United States)

    Snyder, Christopher A.

    2014-01-01

    A Large Civil Tiltrotor (LCTR) conceptual design was developed as part of the NASA Heavy Lift Rotorcraft Systems Investigation in order to establish a consistent basis for evaluating the benefits of advanced technology for large tiltrotors. The concept has since evolved into the second-generation LCTR2, designed to carry 90 passengers for 1,000 nautical miles at 300 knots, with vertical takeoff and landing capability. This paper explores gas turbine component performance and cycle parameters to quantify performance gains possible for additional improvements in component and material performance beyond those identified in previous LCTR2 propulsion studies and to identify additional research areas. The vehicle-level characteristics from this advanced technology generation 2 propulsion architecture will help set performance levels as additional propulsion and power systems are conceived to meet ever-increasing requirements for mobility and comfort, while reducing energy use, cost, noise and emissions. The Large Civil Tiltrotor vehicle and mission will be discussed as a starting point for this effort. A few, relevant engine and component technology studies, including previous LCTR2 engine study results will be summarized to help orient the reader on gas turbine engine architecture, performance and limitations. Study assumptions and methodology used to explore engine design and performance, as well as assess vehicle sizing and mission performance will then be discussed. Individual performance for present and advanced engines, as well as engine performance effects on overall vehicle size and mission fuel usage, will be given. All results will be summarized to facilitate understanding the importance and interaction of various component and system performance on overall vehicle characteristics.

  3. Detonation Jet Engine. Part 2--Construction Features

    Science.gov (United States)

    Bulat, Pavel V.; Volkov, Konstantin N.

    2016-01-01

    We present the most relevant works on jet engine design that utilize thermodynamic cycle of detonative combustion. Detonation engines of various concepts, pulse detonation, rotational and engine with stationary detonation wave, are reviewed. Main trends in detonation engine development are discussed. The most important works that carried out…

  4. Infrared Emissivity Measurements of Building and Civil Engineering Materials: A New Device for Measuring Emissivity

    Science.gov (United States)

    Monchau, Jean-Pierre; Marchetti, Mario; Ibos, Laurent; Dumoulin, Jean; Feuillet, Vincent; Candau, Yves

    2014-10-01

    The knowledge of the infrared emissivity of materials used in buildings and civil engineering structures is useful for two specific approaches. First, quantitative diagnosis of buildings or civil engineering infrastructures by infrared thermography requires emissivity values in the spectral bandwidth of the camera used for measurements, in order to obtain accurate surface temperatures; for instance, emissivity in the band III domain is required when using cameras with uncooled detectors (such as micro-bolometer arrays). Second, setting up accurate thermal balances by numerical modeling requires the total emissivity value for a large wavelength domain; this is, for instance, the case for computing the road surface temperature to predict ice occurrence. Furthermore, periodical surveys of emissivity variations due to aging or soiling of surfaces could be useful in many situations such as thermal mapping of roads or building insulation diagnosis. The use of portable emissivity measurement devices is required for that purpose. A device using an indirect measurement method was previously developed in our lab; the method uses measurement of the reflectivity from a modulated IR source and requires calibration with a highly reflective surface. However, that device uses a low-frequency, thermal modulation well adapted to laboratory measurements but unfit for fast and in situ measurements. Therefore, a new, portable system which retains the principle of an indirect measurement but uses a faster-frequency, mechanical modulation more appropriate to outdoor measurements was developed. Both devices allow measurements in the broad m to m) and narrow m to m) bands. Experiments were performed on a large number of materials commonly used in buildings and civil engineering structures. The final objective of this work is to build a database of emissivity of these materials. A comparison of laboratory and on-site measurements of emissivity values obtained in both spectral bands will be

  5. Nanosensors for structural monitoring in civil engineering: New insight on promising carbon nanotubes devices

    OpenAIRE

    LEBENTAL, Bérengère; Norman, Evgeny; Gorintin, Louis; Renaux, Philippe; BONDAVALLI, Paulo; COJOCARU, Costel-Sorin; Ghis, Anne

    2011-01-01

    In recent years, requirements in terms of service-life of civil engineering structures have become more and more stringent, so that the focus of designers and owners is now set on structural durability. Foreseeing structural failures and repairing damaged structures at an early stage has become a major stake. This approach calls for an accurate knowledge of the state of the structure at any point in its lifetime. This is the incentive for the world-wide development of various in-situ monitori...

  6. STRATEGY FOR IMPROVEMENT OF SAFETY AND EFFICIENCY OF COMPUTER-AIDED DESIGN ANALYSIS OF CIVIL ENGINEERING STRUCTURES ON THE BASIS OF THE SYSTEM APPROACH

    Directory of Open Access Journals (Sweden)

    Zaikin Vladimir Genrikhovich

    2012-12-01

    Full Text Available The authors highlight three problems of the age of information technologies and proposes the strategy for their resolution in relation to the computer-aided design of civil engineering structures. The authors express their concerns in respect of globalization of software programmes designated for the analysis of civil engineering structures and employed outside of Russia. The problem of the poor quality of the input data has reached Russia. Lately, the rate of accidents of buildings and structures has been growing not only in Russia. Control over efficiency of design projects is hardly performed. This attitude should be changed. Development and introduction of CAD along with the application the efficient methods of projection of behaviour of building structures are in demand. Computer-aided calculations have the function of a logical nucleus, and they need proper control. The system approach to computer-aided calculations and technologies designated for the projection of accidents is formulated by the authors. Two tasks of the system approach and fundamentals of the strategy for its implementation are formulated. The study of cases of negative results of computer-aided design of engineering structures was performed and multi-component design patterns were developed. Conclusions concerning the results of researches aimed at regular and wide-scale implementation of the strategy fundamentals are formulated. Organizational and innovative actions concerning the projected behaviour of civil engineering structures proposed in the strategy are to facilitate: safety and reliability improvement of buildings and structures; saving of building materials and resources; improvement of labour efficiency of designers; modernization and improvement of accuracy of projected behaviour of buildings and building standards; closer ties between civil and building engineering researchers and construction companies; development of competitive environment to boost

  7. ORNL engineering design and construction reengineering report

    Energy Technology Data Exchange (ETDEWEB)

    McNeese, L.E.

    1998-01-01

    A team composed of individuals representing research and development (R and D) divisions, infrastructure support organizations, and Department of Energy (DOE)-Oak Ridge Operations was chartered to reengineer the engineering, design, and construction (ED and C) process at Oak Ridge National Laboratory (ORNL). The team recognized that ED and C needs of both R and D customers and the ORNL infrastructure program have to be met to maintain a viable and competitive national laboratory. Their goal was to identify and recommend implementable best-in-class ED and C processes that will efficiently and cost-effectively support the ORNL R and D staff by being responsive to their programmatic and infrastructure needs. The team conducted process mapping of current and potential ED and C approaches, developed idealized versions of ED and C processes, and identified potential barriers to an efficient ED and C process. Eight subteams were assigned to gather information and to evaluate the significance of potential barriers through benchmarking, surveys, interviews, and reviews of key topical areas in order to determine whether the perceived barriers were real and important and whether they resulted from laws or regulations over which ORNL has no control.

  8. Design of the Curriculum for a Second-Cycle Course in Civil Engineering in the Context of the Bologna Framework

    Science.gov (United States)

    Gavin, K. G.

    2010-01-01

    This paper describes the design of the curriculum for a Master of Engineering programme in civil engineering at University College Dublin. The revised programme was established to meet the requirements of the Bologna process and this paper specifically considers the design of a new, second-cycle master's component of the programme. In addition to…

  9. Operational modal analysis of civil engineering structures an introduction and guide for applications

    CERN Document Server

    Rainieri, Carlo

    2014-01-01

    This book covers all aspects of operational modal analysis for civil engineering, from theoretical background to applications, including measurement hardware, software development, and data processing. In particular, this book provides an extensive description and discussion of OMA methods, their classification and relationship, and advantages and drawbacks. The authors cover both the well-established theoretical background of OMA methods and the most recent developments in the field, providing detailed examples to help the reader better understand the concepts and potentialities of the technique. Additional material is provided (data, software) to help practitioners and students become familiar with OMA. Covering a range of different aspects of OMA, always with the application in mind, the practical perspective adopted in this book makes it ideal for a wide range of readers from researchers to field engineers; graduate and undergraduate students; and technicians interested in structural dynamics, system iden...

  10. Solving Civil Engineering Problems by Means of Fuzzy and Stochastic MCDM Methods: Current State and Future Research

    Directory of Open Access Journals (Sweden)

    Jurgita Antucheviciene

    2015-01-01

    Full Text Available The present review examines decision-making methods developed for dealing with uncertainties and applied to solve problems of civil engineering. Several methodological difficulties emerging from uncertainty quantification in decision-making are identified. The review is focused on formal methods of multiple criteria decision-making (MCDM. Handling of uncertainty by means of fuzzy logic and probabilistic modelling is analysed in light of MCDM. A sensitivity analysis of MCDM problems with uncertainties is discussed. An application of stochastic MCDM methods to a design of safety critical objects of civil engineering is considered. Prospects of using MCDM under uncertainty in developing areas of civil engineering are discussed in brief. These areas are design of sustainable and energy efficient buildings, building information modelling, and assurance of security and safety of built property. It is stated that before long the decision-making in civil engineering may face several methodological problems: the need to combine fuzzy and probabilistic representations of uncertainties in one decision-making matrix, the necessity to extend a global sensitivity analysis to all input elements of a MCDM problem with uncertainties, and an application of MCDM methods in the areas of civil engineering where decision-making under uncertainty is presently not common.

  11. MULTIMEDIA TECHNOLOGIES FOR TRAINING FOR "DESCRIPTIVE GEOMETRY AND ENGINEERING GRAPHICS" COURSE FOR STUDENTS OF THE FACULTY OF CIVIL ENGINEERING IN KUBGAU

    Directory of Open Access Journals (Sweden)

    Serga G. V.

    2015-03-01

    Full Text Available The article examines the teaching descriptive geometry and engineering graphics on Faculty of Civil Engineering, higher-motivation of students to obtain needed competence to adopt competently compensation-drawings. The article describes the basic methods of conducting classes on the subject "Descriptive Geometry and Engineering Graphics" for students enrolled in the specialty 08.05.01 "Construction of unique buildings and structures." For lectures and laboratory classes in the department of descriptive geometry and graphics were developed multimedia courses with animation for all studied subjects, educational presentations that reveal the specifics of the discipline into account peculiarities of the educational process of learning in the Kuban State Agricultural university. Multimedia courses using enables us to model a situation that forces students to analyze, compare the solves of the task. Students develop an algorithmic way of thinking, formed the ability to think and act optimally variability. The use of multimedia development at the Department of Descriptive Geometry and Graphics showed an increase of performance results compared to the previous years of employment without presentation. It indicates that the use of multimedia lectures and laboratory exercises improves the efficiency and quality of education, as well as gives an opportunity to a greater extent to explain the learning material for students

  12. Image-based dynamic deformation monitoring of civil engineering structures from long ranges

    Science.gov (United States)

    Ehrhart, Matthias; Lienhart, Werner

    2015-02-01

    In this paper, we report on the vibration and displacement monitoring of civil engineering structures using a state of the art image assisted total station (IATS) and passive target markings. By utilizing the telescope camera of the total station, it is possible to capture video streams in real time with 10fps and an angular resolution of approximately 2″/px. Due to the high angular resolution resulting from the 30x optical magnification of the telescope, large distances to the object to be monitored are possible. The laser distance measurement unit integrated in the total station allows to precisely set the camera's focus position and to relate the angular quantities gained from image processing to units of length. To accurately measure the vibrations and displacements of civil engineering structures, we use circular target markings rigidly attached to the object. The computation of the targets' centers is performed by a least squares adjustment of an ellipse according to the Gauß-Helmert model from which the parameters of the ellipse and their standard deviations are derived. In laboratory experiments, we show that movements can be detected with an accuracy of better than 0.2mm for single frames and distances up to 30m. For static applications, where many video frames can be averaged, accuracies of better than 0.05mm are possible. In a field test on a life-size footbridge, we compare the vibrations measured by the IATS to reference values derived from accelerometer measurements.

  13. A Review of Distributed Optical Fiber Sensors for Civil Engineering Applications

    Directory of Open Access Journals (Sweden)

    António Barrias

    2016-05-01

    Full Text Available The application of structural health monitoring (SHM systems to civil engineering structures has been a developing studied and practiced topic, that has allowed for a better understanding of structures’ conditions and increasingly lead to a more cost-effective management of those infrastructures. In this field, the use of fiber optic sensors has been studied, discussed and practiced with encouraging results. The possibility of understanding and monitor the distributed behavior of extensive stretches of critical structures it’s an enormous advantage that distributed fiber optic sensing provides to SHM systems. In the past decade, several R & D studies have been performed with the goal of improving the knowledge and developing new techniques associated with the application of distributed optical fiber sensors (DOFS in order to widen the range of applications of these sensors and also to obtain more correct and reliable data. This paper presents, after a brief introduction to the theoretical background of DOFS, the latest developments related with the improvement of these products by presenting a wide range of laboratory experiments as well as an extended review of their diverse applications in civil engineering structures.

  14. A Review of Distributed Optical Fiber Sensors for Civil Engineering Applications.

    Science.gov (United States)

    Barrias, António; Casas, Joan R; Villalba, Sergi

    2016-05-23

    The application of structural health monitoring (SHM) systems to civil engineering structures has been a developing studied and practiced topic, that has allowed for a better understanding of structures' conditions and increasingly lead to a more cost-effective management of those infrastructures. In this field, the use of fiber optic sensors has been studied, discussed and practiced with encouraging results. The possibility of understanding and monitor the distributed behavior of extensive stretches of critical structures it's an enormous advantage that distributed fiber optic sensing provides to SHM systems. In the past decade, several R & D studies have been performed with the goal of improving the knowledge and developing new techniques associated with the application of distributed optical fiber sensors (DOFS) in order to widen the range of applications of these sensors and also to obtain more correct and reliable data. This paper presents, after a brief introduction to the theoretical background of DOFS, the latest developments related with the improvement of these products by presenting a wide range of laboratory experiments as well as an extended review of their diverse applications in civil engineering structures.

  15. Application of fiber optic distributed sensor for strain measurement in civil engineering

    Science.gov (United States)

    Kurashima, Toshio; Usu, Tomonori; Tanaka, Kuniaki; Nobiki, Atsushi; Sato, Masashi; Nakai, Kenji

    1997-11-01

    We report on civil engineering applications of a fiber optic distributed strain sensor. It consists of a sensing fiber and a high performance optical time domain reflectometer (OTDR), for measuring both strain and optical loss distribution along optical fibers by accessing only one end of the fiber. The OTDR can measure distributed strain with an accuracy of better than +/- 60 X 10-6 and a high spatial resolution of up to 1 m over a 10 km long fiber. In model experiments using the OTDR, we measured the strain changes in fibers attached to the surface of a concrete test beam. The performance of the fiber strain sensor was tested by measuring the strain distribution in optical fibers and comparing the results with resistance strain gage measurements for several loads. We found that the two sets of results were similar, and in addition, we demonstrated experimentally that the sensor was able to measure an induced strain change of less than 100 by 10-6, which is nearly the elastic limit of the concrete material. These results show the potential of the OTDR to extend the application of monitoring systems to such areas as large building diagnostics for civil engineering.

  16. A Review of Distributed Optical Fiber Sensors for Civil Engineering Applications.

    Science.gov (United States)

    Barrias, António; Casas, Joan R; Villalba, Sergi

    2016-01-01

    The application of structural health monitoring (SHM) systems to civil engineering structures has been a developing studied and practiced topic, that has allowed for a better understanding of structures' conditions and increasingly lead to a more cost-effective management of those infrastructures. In this field, the use of fiber optic sensors has been studied, discussed and practiced with encouraging results. The possibility of understanding and monitor the distributed behavior of extensive stretches of critical structures it's an enormous advantage that distributed fiber optic sensing provides to SHM systems. In the past decade, several R & D studies have been performed with the goal of improving the knowledge and developing new techniques associated with the application of distributed optical fiber sensors (DOFS) in order to widen the range of applications of these sensors and also to obtain more correct and reliable data. This paper presents, after a brief introduction to the theoretical background of DOFS, the latest developments related with the improvement of these products by presenting a wide range of laboratory experiments as well as an extended review of their diverse applications in civil engineering structures. PMID:27223289

  17. Utilization of electromigration in civil and environmental engineering--processes, transport rates and matrix changes.

    Science.gov (United States)

    Ottosen, Lisbeth M; Christensen, Iben V; Rorig-Dalgård, Inge; Jensen, Pernille E; Hansen, Henrik K

    2008-07-01

    Electromigration (movement of ions in an applied electric field) is utilized for supply or extraction of ions from various porous materials within both civil and environmental engineering. In civil engineering, most research has been conducted on the removal of chlorides from concrete to hinder reinforcement corrosion while in environmental engineering remediation of heavy metal polluted soil is the issue most studied. Never the less, experiments have been conducted with utilization for several other materials and purposes within both engineering fields. Even though there are many topics of common interest in the use of electromigration for the two fields, there is no tradition for collaboration. The present paper is a review with the aim of pointing out areas of shared interest. Focus is laid on the purposes of the different processes, transport rates of various ions in different materials and on changes in the matrix itself. Desorption and dissolution of the target elements into ionic form is a key issue to most of the processes, and can be the limiting step. The removal rate is generally below 1 cm day(- 1), but it can be much less than 1 mm day(- 1) when desorption is slow and insufficient. Matrix changes occurs under the action of the applied electric field and it includes both physico-chemical and hydrological changes. Some of the solid phases is weathered and new can be formed. Increased fundamental understanding of the effects and side effects, when applying the electric field to a porous material, can lead to improvement of the known technologies and possibly to new applications.

  18. A PARTNERSHIP OF LECTURERS AS A NEW ORGANIZATIONAL FORM OF CIVIL ENGINEERING EDUCATION IN MOSCOW IN THE EARLY 20th CENTURY

    OpenAIRE

    Panteleeva Tatyana Leonidovna

    2012-01-01

    The article based on unpublished archived documents deals with the history of the first civil engineering colleges in Moscow. They served as the foundation of professional training in civil engineering. Many distinguished persons, well-known as the founders of academic schools started their careers there. The first civil engineering college in Moscow, founded by M.K. Priorov in 1905, enjoyed high enrolment rates due to the growing needs in skilled builders. However, officers of...

  19. Study on the Construction of Eco-security System in China under the Ecological Civilization Concept——Based on the Ecological Civilization Construction in Qingzhen City of Guizhou Province

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    The construction of eco-security system was a complicated systematic project, included the comprehensive construction and collaborative propulsion of eco-environment system, eco-economy system, eco-culture system, eco-society system and eco-law system. The comprehensive, coordinated and sustainable development of ecology, economy and society only could be achieved under the guidance of ecological civilization concept by the integrated consideration, comprehensive planning and multi-coordination.

  20. 生态文明建设的科学内涵与基本路径%Ecological Civilization Construction:Scientific Connotation and Basic Paths

    Institute of Scientific and Technical Information of China (English)

    谷树忠; 胡咏君; 周洪

    2013-01-01

    生态文明建设是我国今后发展的重要方向、重大领域和重大任务.在十八大报告提出“大力推进生态文明建设”的基础上,从人与自然的关系、生态文明与现代文明的关系、生态文明与时代发展的关系三个方面系统阐释了生态文明建设的科学内涵,并从建设主体、建设地域、建设内容、建设手段四个方面,构建生态文明建设的分类体系.对生态文明建设的基本路径进行设计,明确生态文明建设的目标和依据,提出生态文明建设的四条基本路径,其中资源保护与节约是生态文明建设的重中之重,环境保护与治理是生态文明建设的关键所在,生态保护与修复为生态文明建设提供重要载体,国土开发与保护是生态文明建设的空间规制.最后从全民参与、科学规划和制度创新三个方面针对基本路径提出生态文明建设的具体政策建议.%Ecological civilization construction is a major direction, a key field and an important mission of Chinese future development. Some academics studied on the concept, feature and status of ecological civilization, which are mainly surrounded the theory but provide few values for the practices. Under the background of the 18th (the Communist Party of China) CPC national Congress proposing "Promote the construction of ecological civilization", this paper systematically expounds the scientific connotation of ecological civilization from three kinds of relations: man and nature, ecological civilization and modern civilization, ecological civilization and development. Then it constructs the classification system of ecological civilization construction from four aspects: body, area, content and means. The body of ecological civilization construction includes the governments, the entrepreneurs, the families, NGOs and mixed bodies. The area of ecological civilization construction is divided into five levels: global scale, national scale, district

  1. An analysis on ecological civilization construction in Gansu based on a quantified SWOT framework

    Institute of Scientific and Technical Information of China (English)

    LiLi Li; HongLang Xiao; SongBing Zou; Juan Ren

    2014-01-01

    Ecological civilization (EC) construction has become one of the key elements of China’s reform and development process, since it was put forward at the 17th National People’s Congress (NPC) in 2007 and improved at the 18th NPC in 2012, and stressed at the third plenary session of the 18th NPC. The provincial areas are the most important pilot units of EC strategy. Therefore, research on EC at the provincial level can meet the practical demand for EC in China. Based on the existing provincial circumstances in Gansu and its significant position as an ecological barrier in northwestern China, and aiming at the core issue of why and how to build EC in Gansu, this paper employs SWOT (strengths, weaknesses, opportunities, threats) analysis, the Delphi method, and a combined quantitative analysis and coordinate method, and then calculates the relevant strategic orientation angle (θ=1.4605) and strength coefficient (ρ=0.53). The results show that Gansu should take an opportunities-dominated strategy, and choose opportunity-strength measures, so the province can increase its in-ternal strengths and decrease its weaknesses with external opportunities. Specific measures are recommended to actively promote an EC construction strategy.

  2. Technical measures for management of Construction Engineering

    Institute of Scientific and Technical Information of China (English)

    于泽东; 王英明

    2014-01-01

    the production of improved quality of life, cannot do without the construction, in recent years, the construction quality of the increasingly stringent requirements, how to ef ectively carry out the technical management of building construction is worthy of discussion. This paper wil discuss from the fol owing aspects.

  3. Acting Smart: An Investigation of Assumptions and Principles Which Underpin Training and Assessment Within One Civil Construction Company.

    Science.gov (United States)

    Searle, Jean; Kelly, Ann

    This report focuses on an investigation of assumptions and principles underpinning training and assessment programs offered by a civil construction company in Australia. Section 1 is an introduction. To conceptualize the new workplace and consider the role of literacy and numeracy in it, Section 2 addresses changing work conditions, features of a…

  4. A Study on the Engineering Construction Schedule Control

    Institute of Scientific and Technical Information of China (English)

    Song Shihai

    2014-01-01

    In the whole process of engineering construction,its schedule control is a very important part,which not only directly affects the quality of the whole project,but also plays a very important role in the economic effect of the entire project. Meanwhile,in the particular process of engineering construction,since construction is a dynamic process,coupled with the numerous factors that involved in the engineering construction schedule control and the program is quite complex,it is so imperative to put the factors and program involved in order;and from a dynamic point of view,the construction schedule control can be studied and analyzed in a comprehensive way. The paper begins with the study of relative definitions of engineering construction schedule control and illustrates the involved factors and the corresponding influence of them on the engineering construction schedule control based on the case study of real estate project construction schedule control at Fuyuan Jiayuan of Tai'an City. And some related suggestions are put forward on the base and the author expects to make an active theoretical guidance effect on engineering construction.

  5. 土木工程质量管理研究%Study on Quality Management of Civil Engineering

    Institute of Scientific and Technical Information of China (English)

    戚甘红

    2012-01-01

    本文主要结合笔者多年来从事土木工程工作的工作经验,首先对土木工程的质量管理内涵做了简要的阐述,在此基础上,对土木工程相关阶段的质量管理进行探讨,以期能提高工程的整体质量.%This paper combines author's many years' working experience in civil engineering, expounds the meaning of quality management in civil engineering briefly, on this basis, explores the quality management of related stage in civil engineering, so as to improve the overall quality of project.

  6. GPR applications in Civil Engineering in Spain - state-of-the-art

    Science.gov (United States)

    Pérez Gracia, Vega; Solla, Mercedes; Santos-Assunçao, Sonia; Lorenzo, Henrique

    2014-05-01

    GPR was introduced in Spain in 1990, and the first significant work was the PhD thesis of H. Lorenzo in 1994. Due to its versatile applicability, the employ has been increased and actually, GPR is extensively used in detection of pipes, wiring and urban services mainly. During the last years, this method was also widely utilized in the detection of graves from the civil war and in forensic studies, with irregular results. It was also commonly applied in archaeology. Actually exists more than 20 private companies offering geotechnical services by means of GPR. Also, several public institutions as Universities and Research Institutes base part of their research in GPR or in GPR applications. Notwithstanding, no training courses of specific formation on GPR is offered, but in several doctorate programs it is possible to work with GPR. Also, in many schools, GPR is part of the geophysical formation of graduate students. However, no national guidelines and rules exist, and each company defines the investigation protocols. Nevertheless, one of the aims of the Comisión Española de Geodesia y Geofísica (Spanish Committee for Geodesy and Geophysics) is to define guidelines for the GPR studies. Probably, the existence of national guidelines or perhaps European guidelines could be the most effective way to promote the responsible use of GPR in different domains. On the other hand, perhaps recommendations on the use of combined methodologies could be a practical way to persuade in the application of geophysical non-destructive technologies. The CEDEX, Centro de Estudios y Experimentación de Obras Públicas (Center for Studies and Experimentation in Civil Engineering), which is a civil engineering research agency in Spain, offers different test sites to calibrate and evaluate the method. It is an autonomous organization, organically ascribed at present to the Ministry of Fomento, and functionally ascribed to the Ministries of Fomento and Medioambiente of Spain, giving

  7. Strain properties analysis and wireless collection system of PVDF for structural local health monitoring of civil engineering structures

    Science.gov (United States)

    Yu, Yan; Wang, Yang; Dong, Weijie; Jin, Yajing; Ou, Jinping

    2009-07-01

    For large civil engineering structures and base establishments, for example, bridges, super-high buildings, long-span space structures, offshore platforms and pipe systems of water & gas supply, their lives are up to a few decades or centuries. Damaged by environmental loads, fatigue effects, corrosion effects and material aging, these structures experience inevitably such side effects as damage accumulation, resistance reduction and even accidents. The traditional civil structure is a kind of passive one, whose performance and status are unpredictable to a great extent, but the informatics' introduction breaks a new path to obtain the status of the structure, thus it is an important research direction to evaluate and improve reliability of civil structures by the use of monitoring and health diagnosis technique, and this also assures the security of service for civil engineering structures. Smart material structure, originated from the aerospace sector, has been a research hotspot in civil engineering, medicine, shipping, and so on. For structural health monitoring of civil engineering, the research about high-performance sensing unit of smart material structure is very important, and this will possibly push further the development and application of monitoring and health diagnosis techniques. At present, piezoelectric materials are one of the most widely used sensing materials among the research of smart material structures. As one of the piezoelectric materials, PVDF(Polyvinylidene Fluoride)film is widely considered for the advantages of low cost, good mechanical ability, high sensibility, the ability of being easily placed and resistance of corrosion. However, only a few studies exit about building a mature monitoring system using PVDF. In this paper, for the sake of using PVDF for sensing unit for structural local monitoring of civil engineering, the strain sensing properties of PVDF are studied in detail. Firstly, the operating mechanism of PVDF is analyzed

  8. 生态文明视域下公民的生态责任建设%Civil Construction of Ecological Responsibility from the View of Ecological Civilization

    Institute of Scientific and Technical Information of China (English)

    李玉明

    2014-01-01

    Since the 18th party congress of the communist party of China proposed strategic conception of“beautiful chi-na”,the central government has actively developed the construction of ecological civilization,which got height response and support from the whole society.Of course,we will face a question that is how to implement the central government's policy of ecological construction and realize rational utilization and protection of the ecological environment and natural re-sources.One of the keys is to promote ecological civilization construction of citizen consciousness and increase it as the bounden duty.However,based on the analysis of the current Chinese citizen ecological civilization construction practice situation,the paper points out that China’s citizens are lack of responsibility,such as responsibility cognition deficien-cy,responsibility behavior disorder and so on.To a certain extent,those are not conducive for promoting the construction of ecological civilization in China.Therefore,the paper comes up with four dimensions,including conceptual level,be-havior level,the legislative level and system level,in order to strengthen civil construction of ecological responsibility and have the important practical significance for constructing ecological “beautiful Chinese”.%自党的十八大提出建设“美丽中国”战略构想以来,中央积极部署推进生态文明建设,得到了全社会的高度拥护和响应。对于如何贯彻落实中央的生态建设方针,实现生态环境和自然资源的合理保护和利用,一个关键性的要素就是要提升社会公民的生态文明建设自觉,并上升为义不容辞的责任。然而,通过对当下中国公民生态文明建设践行情况的分析,得出我国公民存在着责任认知不足、履责能力不强以及生态行为失序等诸多责任缺失问题的结论,这些问题在一定程度上不利于我国生态文明建设的全面推进。为此,提出

  9. Effective control of engineering cost measures

    Institute of Scientific and Technical Information of China (English)

    郑虹; 戚悦

    2013-01-01

    the civil engineering cost function mainly lies in the calculation of the required for the construction cost to the sum of al. Civil engineering cost throughout the project, the efective use of human, financial weakness, can beter benefit our investment, so the control of civil engineering cost measures is very necessary.

  10. Ten Engineers Reading: Disjunctions between Preference and Practice in Civil Engineering Faculty Responses

    Science.gov (United States)

    Taylor, Summer Smith; Patton, Martha D.

    2006-01-01

    Previous research has indicated that engineering faculty do not follow best practices when commenting on students' technical writing. However, it is unclear whether the faculty prefer to comment in these ineffective ways, or whether they prefer more effective practices but simply do not enact them. This study adapts a well known study of response…

  11. The Urban Sustainability From the Perspective of Civil Construction: A Study in the Construction Companies in Campina Grande, in the State of Paraíba

    OpenAIRE

    Arlan Teodódio Macêdo; Maria de Fatima Martins

    2015-01-01

    The present urban sustainability issues involve urban aspects that show the actual conditions of these spaces, from the quest for harmony between the natural and built environments. The civil construction as an active agent in an active way in urban areas, whose activity is focused on building projects, is a driver of impacts that may affect the quality of cities. This paper aims to analyze the aspects of urban sustainability considered by the construction companies in Campina Grande, in the ...

  12. Digital fabrication in architecture, engineering and construction

    CERN Document Server

    Caneparo, Luca

    2014-01-01

    Digital technologies are changing the relationship between design and construction: with computer models, CAD/CAM, and prototyping, designers can gain direct control of building and construction processes. The ability to digitally model designs, and thus to use those models directly in the context of production, creates a synthesis between design and construction in keeping with the tradition of the close relationship between design and craftsmanship, between the quality of the design and the rules of the craft. The evolution of the culture of design and construction is the underlying theme of this book. The aim is to discuss the direction that innovation is now taking, with a particular focus on today’s cutting-edge architectures. The method addresses the ways in which different societies have dealt with the issues of their age regarding design and construction, the different contributions provided by various techniques, and with them the meanings expressed by the architecture. As building design using dig...

  13. ON THE PHENOMENON OF HYPOTHETIC FUNCTION-CIVILIZATIONS

    OpenAIRE

    Yazev, S.

    2006-01-01

    Extrapolation of tendencies of development of the terrestrial civilization into the field of nanotechnology and genetic engineering leads to a hypothesis of a principal possibility of creation of artificial civilizations with functions specified a priori. Existence of many artificial function-civilizations is assumed. Any spiritual values can be laid in their constructed genomes. When elaborating SETI programs it should be kept in mind that civilizations developing according to the programs o...

  14. Methodology to improve design of accelerated life tests in civil engineering projects.

    Directory of Open Access Journals (Sweden)

    Jing Lin

    Full Text Available For reliability testing an Energy Expansion Tree (EET and a companion Energy Function Model (EFM are proposed and described in this paper. Different from conventional approaches, the EET provides a more comprehensive and objective way to systematically identify external energy factors affecting reliability. The EFM introduces energy loss into a traditional Function Model to identify internal energy sources affecting reliability. The combination creates a sound way to enumerate the energies to which a system may be exposed during its lifetime. We input these energies into planning an accelerated life test, a Multi Environment Over Stress Test. The test objective is to discover weak links and interactions among the system and the energies to which it is exposed, and design them out. As an example, the methods are applied to the pipe in subsea pipeline. However, they can be widely used in other civil engineering industries as well. The proposed method is compared with current methods.

  15. Two-Word Combinations as English and Lithuanian Terms of Building and Civil Engineering

    Directory of Open Access Journals (Sweden)

    Laimutė Kitkauskienė

    2011-04-01

    Full Text Available This paper studies English and Lithuanian two-word terms of building and civil engineering with respect to their grammatical and semantic structures. By means of a comparative analysis common and diverse structures of the terms under discussion have been considered, and some main two-word parallel term structures are distinguished in these languages. Structural differences are characterized by the grammatical peculiarities of the two languages. Semantic equivalence or non-equivalence of some components of such terms is discussed, and the adequacy of the meaning of the terms compared is explained. The comparative study of such terms should add to quick recognizing of certain structures and to facilitating comprehension and use of the terms. The adequacy of the English and Lithuanian terms means the identity of their meaning, and namely, this is what matters in special-subject communication.

  16. Experience within the CERN Civil Engineering Group with Outsourced Design Services

    CERN Document Server

    Watson, T

    1998-01-01

    In April 1996, CERN awarded three contracts for civil engineering design services associated with the LHC project. The three contracts were awarded to three different joint ventures of firms from five member states. The total bid price for these services was in excess of 35 MCHF and the contracts will run for up to seven years. This paper aims to discuss and analyze the experience gained to date in the management of these contracts. In particular, the paper will address the issues of conditions of contract and specification for this form of contract. Current experience with each of the three consultants will be presented with the areas of difficulty highlighted. Conclusions will be made regarding future use of such contracts and in particular the way in which CERN must change in order to work efficiently with external designers.

  17. Use of Time- and Frequency-Domain Approaches for Damage Detection in Civil Engineering Structures

    Directory of Open Access Journals (Sweden)

    V. H. Nguyen

    2014-01-01

    Full Text Available The aim of this paper is to apply both time- and frequency-domain-based approaches on real-life civil engineering structures and to assess their capability for damage detection. The methodology is based on Principal Component Analysis of the Hankel matrix built from output-only measurements and of Frequency Response Functions. Damage detection is performed using the concept of subspace angles between a current (possibly damaged state and a reference (undamaged state. The first structure is the Champangshiehl Bridge located in Luxembourg. Several damage levels were intentionally created by cutting a growing number of prestressed tendons and vibration data were acquired by the University of Luxembourg for each damaged state. The second example consists in reinforced and prestressed concrete panels. Successive damages were introduced in the panels by loading heavy weights and by cutting steel wires. The illustrations show different consequences in damage identification by the considered techniques.

  18. Human engineering analysis for the high speed civil transport flight deck

    Science.gov (United States)

    Regal, David M.; Alter, Keith W.

    1993-01-01

    The Boeing Company is investigating the feasibility of building a second generation supersonic transport. If current studies support its viability, this airplane, known as the High Speed Civil Transport (HSCT), could be launched early in the next century. The HSCT will cruise at Mach 2.4, be over 300 feet long, have an initial range of between 5000 and 6000 NM, and carry approximately 300 passengers. We are presently involved in developing an advanced flight deck for the HSCT. As part of this effort we are undertaking a human engineering analysis that involves a top-down, mission driven approach that will allow a systematic determination of flight deck functional and information requirements. The present paper describes this work.

  19. Web-based Peer Assessment: A Case Study with Civil Engineering Students

    Directory of Open Access Journals (Sweden)

    Gonçalo Cruz

    2013-02-01

    Full Text Available Peer-assessed online collaborative writing is of growing importance for higher education. Based on the quantitative and qualitative analysis of collected data, this work presents the results of a case study in a graduate civil engineering course at the University of Trás-os-Montes e Alto Douro, Vila Real, Portugal. After an overall presentation of the learning activity, it examines students’ attitudes towards web-based peer assessment and identifies which factors are related to students’ use and appreciation of feedback. In addition, an analysis of the type of feedback is presented in an attempt to evaluate students’  written communication skills. The results of this study provide indications on how to improve the design and implementation of future web-based peer assessment tasks and raise questions on the effectiveness of peer/teacher grading in the use of feedback.

  20. Consolidation on civil engineering and technical infrastructure at CERN from now to 2010

    CERN Document Server

    Alves, P; Pepinster, P; CERN. Geneva. ST Division

    2003-01-01

    The age of the civil engineering structure (office buildings, halls) and of tertiary technical equipment (mainly HVAC and electricity) at CERN is such that their renovation must be considered in the near future. Due to the large number of buildings and equipment in these conditions, and the restricted budget available, it is extremely important to define priorities. The aim of this note is to give the picture of the current conditions and the related problems, based on the backlog of CERN database (MP5) and confronting it with the inventory made at CERN by an external company. After having identified the most frequent problems and repairs to carry out, a planning for intervention is therefore presented optimizing the safety aspects, maintenance costs and comfort for the users. The timescale of this intervention is related to the money that will be available in the coming years.

  1. Low-coherence interferometry for the monitoring of civil engineering structures

    Science.gov (United States)

    Inaudi, Daniele; Elamari, Adil; Vurpillot, Samuel

    1994-09-01

    A measuring system adapted to the needs of civil engineering structural monitoring is presented. It is based on low coherence interferometry in standard singlemode fibers and has a resolution of 5 micrometers , an operational range of 7 cm, stability over long periods (at least 1 year) and insensitivity to variations of the fiber losses. The portable reading unit doesn't need to be connected to the sensing fibers permanently and can thus be used to monitor multiple structures reducing the costs of the instrumentation. This paper presents the operating principle of this system and different techniques used to install the sensing fibers in large concrete structures, timber and mixed timber-concrete structures as well as on metals.

  2. Methodology to improve design of accelerated life tests in civil engineering projects.

    Science.gov (United States)

    Lin, Jing; Yuan, Yongbo; Zhou, Jilai; Gao, Jie

    2014-01-01

    For reliability testing an Energy Expansion Tree (EET) and a companion Energy Function Model (EFM) are proposed and described in this paper. Different from conventional approaches, the EET provides a more comprehensive and objective way to systematically identify external energy factors affecting reliability. The EFM introduces energy loss into a traditional Function Model to identify internal energy sources affecting reliability. The combination creates a sound way to enumerate the energies to which a system may be exposed during its lifetime. We input these energies into planning an accelerated life test, a Multi Environment Over Stress Test. The test objective is to discover weak links and interactions among the system and the energies to which it is exposed, and design them out. As an example, the methods are applied to the pipe in subsea pipeline. However, they can be widely used in other civil engineering industries as well. The proposed method is compared with current methods.

  3. Application of CAD Marking and Query in Civil Engineering%CAD的标注和查询功能在土木工程中的应用

    Institute of Scientific and Technical Information of China (English)

    王继成; 林清辉; 柳爱

    2012-01-01

    It is difficult to calculate in construction measurement. Mistakes are often made in manual calculations and it's not intuitive to manual calculation. In this article, construction measurement with CAD marking and querying is presented and it is applied to automatically implement construction measurement in civil engineering. CAD marking and querying has high accuracy as well as implementation easily, quickly and directly.%针对施工放线内业计算繁琐、手工计算易出差错且不直观等问题,介绍了利用CAD程序的标注工具和查询功能,并将其应用于土木工程自动完成施工放线的内业计算,标注、查询的参数精度高、简单、直观、快捷.

  4. 高层建筑钢结构在土建工程中的应用分析%The Application Analysis of High-rise Steel Structure in Civil Engineering

    Institute of Scientific and Technical Information of China (English)

    彭卓维

    2014-01-01

    近年来,随着城市和效区大规模的土建施工,高层建筑越来越多,钢结构施工成为高层建筑中不可缺少的一部分。本文针对高层建筑钢结构在土建工程中的应用进行了简要分析。%In recent years, with the large-scale civil engine-ering construction of urban and suburban, more and more high-rise buildings have been built and the steel structure construction become an indispensable part of in high-rise buildings. This article carries on the briefly analysis of the High-rise building steel structure in civil engineering.

  5. 土木工程大类复合型人才培养模式探讨%Compound talent training mode for civil engineering specialty

    Institute of Scientific and Technical Information of China (English)

    刘荣桂; 蔡东升

    2012-01-01

    Mode of compound talents training for civil engineering specialty is a systematic project;this paper discussed how to cultivate compound talents for civil engineering specialty from training aim,teaching plan,curriculum system,teaching content,practice teaching and teacher's team construction.Under the framework of professional guidance committee of the Ministry of Education,proposed that specialized talents needs must be combined with the social development;professional content of civil engineering majors must be reformed;cultivating aim must be cleared;corresponding reforms in teaching plan,curriculum system,teaching content,teaching book construction,sources of teacher etc must be carried out in order to foster multi-skilled compound talents.%土木工程大类复合型人才培养模式是一个系统工程,文章在专业培养目标、教学计划、课程体系、课程内容、实践教学及师资队伍建设等方面对如何培养土木工程大类复合型人才进行了一定的探讨,提出土木工程大类复合型人才培养模式应在教育部专业指导委员会的总框架下,结合社会发展对专业人才的需求,改革专业的内涵,明确土木工程大类复合型人才培养目标,在教学计划、课程体系、课程内容、教材建设、师资来源等方面进行相应的改革,以培养出一专多能的土木工程大类复合型人才。

  6. Point 5 - civil engineering : SX5, SX, travelling cranes, trucks, CMS modules, surface views, pit PX

    CERN Multimedia

    1995-01-01

    > de 00:00 à 14:00 le 09 décembre 1995 Forage et carottage du sous-sol pour connaître l’état du terrain pour les futurs travaux souterrains de Génie Civil > de 14:01 à 19:15mn le 03 février 1997 Sondage et carottage dans le tunnel LEP/LHC vers le point2 > de 19 :16 à 38 :00mn le 13 juin 1997 Construction d’une galerie souterraine de liaison et du nouveau bâtiment de ventilation SU ?? sur le site du Point5 Vues du point5 avant l’agrandissement du site pour CMS

  7. Incorporating a Systems Approach into Civil and Environmental Engineering Curricula: Effect on Course Redesign, and Student and Faculty Attitudes

    Science.gov (United States)

    Hayden, Nancy J.; Rizzo, Donna M.; Dewoolkar, Mandar M.; Neumann, Maureen D.; Lathem, Sandra; Sadek, Adel

    2011-01-01

    This paper presents a brief overview of the changes made during our department level reform (DLR) process (Grant Title: "A Systems Approach for Civil and Environmental Engineering Education: Integrating Systems Thinking, Inquiry-Based Learning and Catamount Community Service-Learning Projects") and some of the effects of these changes on…

  8. An Analysis of Female Lecturers' Participation in Civil Engineering Research and Development Activities at One Polytechnic in Zimbabwe

    Science.gov (United States)

    Chikuvadze, Pinias; Matswetu, Vimbai Sharon; Mugijima, Samuel

    2015-01-01

    This study sought to explore female lecturers' participation in civil engineering research and development activities at one polytechnic in Zimbabwe. Case study design was chosen for this study to make predictions, narration of events, comparisons and drawing of conclusions. The female lecturers were purposively sampled to participate in the…

  9. Winning the Popularity Contest: Researcher Preference When Selecting Resources for Civil Engineering, Computer Science, Mathematics and Physics Dissertations

    Science.gov (United States)

    Dotson, Daniel S.; Franks, Tina P.

    2015-01-01

    More than 53,000 citations from 609 dissertations published at The Ohio State University between 1998-2012 representing four science disciplines--civil engineering, computer science, mathematics and physics--were examined to determine what, if any, preferences or trends exist. This case study seeks to identify whether or not researcher preferences…

  10. Proceedings of the Department of Civil and Structural Engineering, University of Sheffield – The Annual Postgraduate Research Student Conference 2015

    OpenAIRE

    aa, vv

    2015-01-01

    The ten papers which appear in this proceedings were contributed by current research students studying in the Department of Civil & Structural Engineering at the University of Sheffield. The papers which have been included provide a flavour of the breadth of the research currently being undertaken in the Department. The Department has a long history of undertaking research in the field of structural engineering and mechanics, and the area is represented in the proceedings by five papers. Two ...

  11. The Engineering Process in Construction & Design

    Science.gov (United States)

    Stoner, Melissa A.; Stuby, Kristin T.; Szczepanski, Susan

    2013-01-01

    Recent research suggests that high-impact activities in science and math classes promote positive attitudinal shifts in students. By implementing high-impact activities, such as designing a school and a skate park, mathematical thinking can be linked to the engineering design process. This hands-on approach, when possible, to demonstrate or…

  12. Identifying Indicators Related to Constructs for Engineering Design Outcome

    Science.gov (United States)

    Wilhelmsen, Cheryl A.; Dixon, Raymond A.

    2016-01-01

    This study ranked constructs articulated by Childress and Rhodes (2008) and identified the key indicators for each construct as a starting point to explore what should be included on an instrument to measure the engineering design process and outcomes of students in high schools that use the PLTW and EbDTM curricula in Idaho. A case-study design…

  13. Conceptual Design of a Two Spool Compressor for the NASA Large Civil Tilt Rotor Engine

    Science.gov (United States)

    Veres, Joseph P.; Thurman, Douglas R.

    2010-01-01

    This paper focuses on the conceptual design of a two spool compressor for the NASA Large Civil Tilt Rotor engine, which has a design-point pressure ratio goal of 30:1 and an inlet weight flow of 30.0 lbm/sec. The compressor notional design requirements of pressure ratio and low-pressure compressor (LPC) and high pressure ratio compressor (HPC) work split were based on a previous engine system study to meet the mission requirements of the NASA Subsonic Rotary Wing Projects Large Civil Tilt Rotor vehicle concept. Three mean line compressor design and flow analysis codes were utilized for the conceptual design of a two-spool compressor configuration. This study assesses the technical challenges of design for various compressor configuration options to meet the given engine cycle results. In the process of sizing, the technical challenges of the compressor became apparent as the aerodynamics were taken into consideration. Mechanical constraints were considered in the study such as maximum rotor tip speeds and conceptual sizing of rotor disks and shafts. The rotor clearance-to-span ratio in the last stage of the LPC is 1.5% and in the last stage of the HPC is 2.8%. Four different configurations to meet the HPC requirements were studied, ranging from a single stage centrifugal, two axi-centrifugals, and all axial stages. Challenges of the HPC design include the high temperature (1,560deg R) at the exit which could limit the maximum allowable peripheral tip speed for centrifugals, and is dependent on material selection. The mean line design also resulted in the definition of the flow path geometry of the axial and centrifugal compressor stages, rotor and stator vane angles, velocity components, and flow conditions at the leading and trailing edges of each blade row at the hub, mean and tip. A mean line compressor analysis code was used to estimate the compressor performance maps at off-design speeds and to determine the required variable geometry reset schedules of the

  14. Pedagogies to Achieve Sustainability Learning Outcomes in Civil and Environmental Engineering Students

    Directory of Open Access Journals (Sweden)

    Angela R. Bielefeldt

    2013-10-01

    Full Text Available The civil and environmental engineering disciplines have identified the levels of knowledge about sustainability that are desirable for students to achieve as they graduate with a bachelor’s degree, as well as sustainability-related competencies to be obtained during a master’s degree, and on-the-job, prior to professional licensure. Different pedagogies are better suited to help students attain these levels of cognitive ability, while also developing affective outcomes. This paper provides examples of different methods that have been used at one institution to educate engineering students about sustainability, supported with data that indicates whether the method successfully achieved the targeted learning outcomes. Lectures, in-class active learning, readings, and appropriately targeted homework assignments can achieve basic sustainability knowledge and comprehension by requiring students to define, identify, and explain aspects of sustainability. Case studies and the application of software tools are good methods to achieve application and analysis competencies. Project-based learning (PBL and project-based service-learning (PBSL design projects can reach the synthesis level and may also develop affective outcomes related to sustainability. The results provide examples that may apply to a wider range of disciplines and suggest sustainability outcomes that are particularly difficult to teach and/or assess.

  15. GIS-Based Simulation of Engineering Construction Schedule

    Institute of Scientific and Technical Information of China (English)

    ZHANG Jing; ZHONG Denghua; HU Chengshun

    2005-01-01

    For its complexity, engineering construction schedule design is limited by various factors.Simulation-based engineering construction schedule takes critical path method (CPM) network as frame and calls complex cyclic operation network (CYCLONE) simulation model enclosed in advance for its simulation nodes. CYCLONE simulation model takes charge of simulating stochastic duration of activity and efficiency of resources, while CPM model performs project scheduling. This combination avoids the shortcomings of both models. Furthermore, geographic information system (GIS) technique is utilized to visualize the construction processes which are otherwise difficult to be understood by static results described. Application in practical project verifies the feasibility and advantage of the technique.

  16. Optimization and control methods in industrial engineering and construction

    CERN Document Server

    Wang, Xiangyu

    2014-01-01

    This book presents recent advances in optimization and control methods with applications to industrial engineering and construction management. It consists of 15 chapters authored by recognized experts in a variety of fields including control and operation research, industrial engineering, and project management. Topics include numerical methods in unconstrained optimization, robust optimal control problems, set splitting problems, optimum confidence interval analysis, a monitoring networks optimization survey, distributed fault detection, nonferrous industrial optimization approaches, neural networks in traffic flows, economic scheduling of CCHP systems, a project scheduling optimization survey, lean and agile construction project management, practical construction projects in Hong Kong, dynamic project management, production control in PC4P, and target contracts optimization.   The book offers a valuable reference work for scientists, engineers, researchers and practitioners in industrial engineering and c...

  17. Summary of the Large Civil Tiltrotor (LCTR2) Engine Gearbox Study

    Science.gov (United States)

    Snyder, Christopher A.; Robuck, Mark; Wilkerson, Joseph; Nordstrom, Carl

    2010-01-01

    In support of the Fundamental Aeronautics Program, Subsonic Rotary Wing Project, NASA is continuing to study the Large Civil Tiltrotor (LCTR) concept to help define/refine vehicle, system and subsystem attributes. These attributes can then be used to define performance requirements and identify new or advanced technologies to achieve an operational vehicle class. As part of this goal, NASA contracted with The Boeing Company and its subcontractor Rolls-Royce to perform an investigation of different combinations of engine and gearbox variability to achieve a maximum of 50 percent rotor tip speed reduction from hover to cruise conditions. Previous NASA studies identified the 50 percent rotor speed reduction minimized vehicle gross weight and fuel burn. The LCTR2 (LCTR-iteration 2) was the contracted study baseline for initial sizing. Rotor tip speed ratios (cruise to hover) of 100, 77, and 54 percent were analyzed for each combination of engine and gearbox speed reduction to achieve the chosen rotor tip speed ratio. Three different engine and gearbox technology levels were assumed; commercial off-the-shelf (COTS), entry-in-service (EIS) in 2025 and EIS in 2035. These technology levels were applied to determine each particular effect on vehicle gross weight and fuel burn, while other vehicle technologies were assumed constant. This report summarizes the work performed that is being put together into a comprehensive NASA contractor report. Some background on the LCTR concept and baseline vehicle will be given and then a discussion concerning the technical approach utilized. Major study assumptions and results will be presented and discussed. Finally conclusions will be drawn as well as suggestions provided for future efforts.

  18. Curricular Reform: Systems Modeling and Sustainability in Civil and Environmental Engineering at the University of Vermont

    Science.gov (United States)

    Rizzo, D. M.; Hayden, N. J.; Dewoolkar, M.; Neumann, M.; Lathem, S.

    2009-12-01

    Researchers at the University of Vermont were awarded a NSF-sponsored Department Level Reform (DLR) grant to incorporate a systems approach to engineering problem solving within the civil and environmental engineering programs. A systems approach challenges students to consider the environmental, social, and economic aspects within engineering solutions. Likewise, sustainability requires a holistic approach to problem solving that includes economic, social and environmental factors. Our reform has taken a multi-pronged approach in two main areas that include implementing: a) a sequence of three systems courses related to environmental and transportation systems that introduce systems thinking, sustainability, and systems analysis and modeling; and b) service-learning (SL) projects as a means of practicing the systems approach. Our SL projects are good examples of inquiry-based learning that allow students to emphasize research and learning in areas of most interest to them. The SL projects address real-world open-ended problems. Activities that enhance IT and soft skills for students are incorporated throughout the curricula. Likewise, sustainability has been a central piece of the reform. We present examples of sustainability in the SL and modeling projects within the systems courses (e.g., students have used STELLA™ systems modeling software to address the impact of different carbon sequestration strategies on global climate change). Sustainability in SL projects include mentoring home schooled children in biomimicry projects, developing ECHO exhibits and the design of green roofs, bioretention ponds and porous pavement solutions. Assessment includes formative and summative methods involving student surveys and focus groups, faculty interviews and observations, and evaluation of student work.

  19. Validation of the GPU-Accelerated CFD Solver ELBE for Free Surface Flow Problems in Civil and Environmental Engineering

    Directory of Open Access Journals (Sweden)

    Christian F. Janßen

    2015-07-01

    Full Text Available This contribution is dedicated to demonstrating the high potential and manifold applications of state-of-the-art computational fluid dynamics (CFD tools for free-surface flows in civil and environmental engineering. All simulations were performed with the academic research code ELBE (efficient lattice boltzmann environment, http://www.tuhh.de/elbe. The ELBE code follows the supercomputing-on-the-desktop paradigm and is especially designed for local supercomputing, without tedious accesses to supercomputers. ELBE uses graphics processing units (GPU to accelerate the computations and can be used in a single GPU-equipped workstation of, e.g., a design engineer. The code has been successfully validated in very different fields, mostly related to naval architecture and mechanical engineering. In this contribution, we give an overview of past and present applications with practical relevance for civil engineers. The presented applications are grouped into three major categories: (i tsunami simulations, considering wave propagation, wave runup, inundation and debris flows; (ii dam break simulations; and (iii numerical wave tanks for the calculation of hydrodynamic loads on fixed and moving bodies. This broad range of applications in combination with accurate numerical results and very competitive times to solution demonstrates that modern CFD tools in general, and the ELBE code in particular, can be a helpful design tool for civil and environmental engineers.

  20. Design of the curriculum for a second-cycle course in civil engineering in the context of the Bologna framework

    Science.gov (United States)

    Gavin, K. G.

    2010-05-01

    This paper describes the design of the curriculum for a Master of Engineering programme in civil engineering at University College Dublin. The revised programme was established to meet the requirements of the Bologna process and this paper specifically considers the design of a new, second-cycle master's component of the programme. In addition to considering the content required to meet the learning outcome specified by the professional accreditation body, the paper presents details of attempts to move from a traditional instructor-centred model to a student-centred model of education in order to promote reflective (deep) learning. Although the paper presents a model curriculum for a civil engineering programme, the holistic approach to curriculum design outlined, which considers the organisation, sequence and evaluation strategies adopted, is applicable to all subject areas in higher education.

  1. Construction of Tissue Engineering Artificial Cornea with Skin Stem Cells

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    1 IntroductionThe clinical need for an alternative to donor corneal tissue has encouraged much interests in recent years. An artificial cornea must fulfill the functions of the cornea it replaces. More recently, the idea of a bio-engineered cornea has risen. Corneal equivalents have been reconstructed by tissue engineering method. Aim of this study is to construct an artificial rabbit cornea by employing tissue engineering method and to determine if skin stem cells have a role in tissue engineered cornea co...

  2. Learning about Environmental Issues in Engineering Programmes: A Case Study of First-Year Civil Engineering Students' Contextualisation of an Ecology Course

    Science.gov (United States)

    Lundholm, Cecilia

    2004-01-01

    Describes how first-year civil engineering students interpreted the content and structure of an ecology course. Students' learning processes were analysed from an intentional perspective, i.e. a perspective that takes into account the students' educational aims and conceptions of the study situation. Interviews were carried out with six civil…

  3. Adoption of value engineering: an attribute study for construction

    International Nuclear Information System (INIS)

    For economic reasons, engineers are compelled to explore low cost methods in construction industry to reduce the overall cost of a project. Research studies have been conducted in this regard throughout the world and value engineering is one of such approaches. Its effective use and applications reduces the project cost without compromising the project quality. Project cost, and efficient design alternatives can be identified using this technique, which will ultimately reduce the overall project cost. Client satisfaction, project reliability and quality can also be improved by the application of value engineering. It is also used for improving managerial performance, project schedule and reduced risks in a project. It is a powerful tool used to identify problems and recommend solutions. This paper highlights the importance of value engineering in general and with specific perspective of Construction Industry in Pakistan. Questionnaire based survey has been conducted by construction managers (i.e. project engineers, construction engineers, project managers, architects, etc.) through online web based system, as a result, random data sampling is achieved. The attributes are mapped to obtain goals for the project. The data has been analyzed through reliability and linear regression using SPSS while Z-Score and Average Index are conducted using MS Excel. The results showed that there is ample need to apply such techniques in initial phases of any project to get project benefits. (author)

  4. Advanced plant engineering and construction of Japanese ABWRs

    International Nuclear Information System (INIS)

    Remarkable improvement has been made in recent nuclear power plant design and construction in Japan. These many improved engineering technologies has been made a good use in the lately commercial operated two world's first 1,356MWe ABW's (Advanced Boiling Water Reactors), and made a great contribution to the smooth progress and the completion of a highly reliable plant construction. Especially, two engineering technologies, (1), three-dimensional computer aided design system through engineering data-base, and (2), large scale modularising construction method, have been successfully applied as the integrated engineering technologies of the plant construction. And two integrated reviews, 'integrated design review, confirmation of new and changed design and prevention of failure recurrence' in the design stage, and 'constructing plant review' at the site, have been widely and systematically conducted as a link in the chain of steady reliability improvement activities. These advanced and/or continuous and steady technologies are one of most important factors for high reliability through the entire lifetime of a nuclear plant, including planning, design, construction, operation and maintenance stages. (author)

  5. Multi-Sensing system for outdoor thermal monitoring: Application to large scale civil engineering components

    Science.gov (United States)

    Crinière, Antoine; Dumoulin, Jean; Manceau, Jean-Luc; Perez, Laetitia; Bourquin, Frederic

    2014-05-01

    Aging of transport infrastructures combined with traffic and climatic solicitations contribute to the reduction of their performances. To address and quantify the resilience of civil engineering structure, investigations on robust, fast and efficient methods are required. Among research works carried out at IFSTTAR, methods for long term monitoring face an increasing demand. Such works take benefits of this last decade technological progresses in ICT domain. The present study follows the ISTIMES European project [1], which aimed at demonstrate the ability of different electromagnetic sensing techniques, processing methods and ICT architecture, to be used for long term monitoring of critical transport infrastructures. Thanks to this project a multi-sensing techniques system, able to date and synchronize measurements carried out by infrared thermography coupled with various measurements data (i.e. weather parameters), have been designed, developed and implemented on real site [2]. Among experiments carried out on real transport infrastructure, it has been shown, for the "Musmesci" bridge deck (Italy), that by using infrared thermal image sequence with weather measurements during sevral days it was possible to develop analysis methods able to produce qualitative and quantitative data [3]. In the present study, added functionalities were designed and added to the "IrLAW" system in order to reach full autonomy in term of power supply, very long term measurement capability (at least 1 year) and automated data base feeding. The surveyed civil engineering structures consist in two concrete beams of 16 m long and 21 T weight each. One of the two beams was damage by high energy mechanical impact at the IFSTTAR falling rocks test station facilities located in the French Alpes [4]. The system is composed of one IR uncooled microbolometric camera (FLIR SC325) with a 320X240 Focal Plane Array detector in band III, a weather station VAISALA WXT520, a GPS, a failover power supply

  6. Advanced spatio-temporal filtering techniques for photogrammetric image sequence analysis in civil engineering material testing

    Science.gov (United States)

    Liebold, F.; Maas, H.-G.

    2016-01-01

    The paper shows advanced spatial, temporal and spatio-temporal filtering techniques which may be used to reduce noise effects in photogrammetric image sequence analysis tasks and tools. As a practical example, the techniques are validated in a photogrammetric spatio-temporal crack detection and analysis tool applied in load tests in civil engineering material testing. The load test technique is based on monocular image sequences of a test object under varying load conditions. The first image of a sequence is defined as a reference image under zero load, wherein interest points are determined and connected in a triangular irregular network structure. For each epoch, these triangles are compared to the reference image triangles to search for deformations. The result of the feature point tracking and triangle comparison process is a spatio-temporally resolved strain value field, wherein cracks can be detected, located and measured via local discrepancies. The strains can be visualized as a color-coded map. In order to improve the measuring system and to reduce noise, the strain values of each triangle must be treated in a filtering process. The paper shows the results of various filter techniques in the spatial and in the temporal domain as well as spatio-temporal filtering techniques applied to these data. The best results were obtained by a bilateral filter in the spatial domain and by a spatio-temporal EOF (empirical orthogonal function) filtering technique.

  7. Engine Installation Effects of Four Civil Transport Airplanes: Wallops Flight Facility Study

    Science.gov (United States)

    Fleming, Gregg G.; Senzig, David A.; McCurdy, David A.; Roof, Christopher J.; Rapoza, Amanda S.

    2003-01-01

    The National Aeronautics and Space Administration (NASA), Langley Research Center (LaRC), the Environmental Measurement and Modeling Division of the United States Department of Transportation s John A. Volpe National Transportation Systems Center (Volpe), and several other organizations (see Appendix A for a complete list of participating organizations and individuals) conducted a noise measurement study at NASA s Wallops Flight Facility (Wallops) near Chincoteague, Virginia during September 2000. This test was intended to determine engine installation effects on four civil transport airplanes: a Boeing 767-400, a McDonnell-Douglas DC9, a Dassault Falcon 2000, and a Beechcraft King Air. Wallops was chosen for this study because of the relatively low ambient noise of the site and the degree of control over airplane operating procedures enabled by operating over a runway closed to other uses during the test period. Measurements were conducted using a twenty microphone U-shaped array oriented perpendicular to the flight path; microphones were mounted such that ground effects were minimized and low elevation angles were observed.

  8. Optimising a modified free-space permittivity characterisation method for civil engineering applications

    Science.gov (United States)

    Muller, Wayne; Scheuermann, Alexander

    2016-04-01

    Measuring the electrical permittivity of civil engineering materials is important for a range of ground penetrating radar (GPR) and pavement moisture measurement applications. Compacted unbound granular (UBG) pavement materials present a number of preparation and measurement challenges using conventional characterisation techniques. As an alternative to these methods, a modified free-space (MFS) characterisation approach has previously been investigated. This paper describes recent work to optimise and validate the MFS technique. The research included finite difference time domain (FDTD) modelling to better understand the nature of wave propagation within material samples and the test apparatus. This research led to improvements in the test approach and optimisation of sample sizes. The influence of antenna spacing and sample thickness on the permittivity results was investigated by a series of experiments separating antennas and measuring samples of nylon and water. Permittivity measurements of samples of nylon and water approximately 100 mm and 170 mm thick were also compared, showing consistent results. These measurements also agreed well with surface probe measurements of the nylon sample and literature values for water. The results indicate permittivity estimates of acceptable accuracy can be obtained using the proposed approach, apparatus and sample sizes.

  9. Self-monitoring fiber reinforced polymer strengthening system for civil engineering infrastructures

    Science.gov (United States)

    Jiang, Guoliang; Dawood, Mina; Peters, Kara; Rizkalla, Sami

    2008-03-01

    Fiber reinforced polymer (FRP) materials are currently used for strengthening civil engineering infrastructures. The strengthening system is dependant on the bond characteristics of the FRP to the external surface of the structure to be effective in resisting the applied loads. This paper presents an innovative self-monitoring FRP strengthening system. The system consists of two components which can be embedded in FRP materials to monitor the global and local behavior of the strengthened structure respectively. The first component of the system is designed to evaluate the applied load acting on a structure based on elongation of the FRP layer along the entire span of the structure. Success of the global system has been demonstrated using a full-scale prestressed concrete bridge girder which was loaded up to failure. The test results indicate that this type of sensor can be used to accurately determine the load prior to failure within 15 percent of the measured value. The second sensor component consists of fiber Bragg grating sensors. The sensors were used to monitor the behavior of steel double-lap shear splices tested under tensile loading up to failure. The measurements were used to identify abnormal structural behavior such as epoxy cracking and FRP debonding. Test results were also compared to numerical values obtained from a three dimensional shear-lag model which was developed to predict the sensor response.

  10. Virtual Placements to Develop Employability Skills for Civil and Environmental Engineering Students

    Directory of Open Access Journals (Sweden)

    Parneet Paul

    2015-04-01

    Full Text Available This project work addresses the crucial need to encourage undergraduate civil and environmental engineering students to gain employment skills and training right from the start of their studies so that their overall employability increases; their confidence level in networking with industry and within the workplace increases; and so that they are successfully able to obtain employment after finishing their studies. This initiative is a stepping-stone employability exercise which focuses specifically on first year students to help them engage with industry right from the start of their course. It is proposed that they would gain some realistic work experience both individually and as part of group within a virtual work environment using an action learning approach. The virtual environment used was based on SecondLife, a popular virtual reality programme. A pilot scheme was set up and run at Brunel University during the summer of 2014 using eight self-selecting first year students. The scheme’s outputs were extensively monitored and evaluated to assess its impact on the development of employability skills. This approach may prove a cost effective way of letting students gain an insight into the workplace whilst improving these skills. It may also prove a way for employers to select from a large range of students the best to actually undertake their real work-based internships.

  11. 探讨土建施工的现场管理及解决对策%Discussion on the Civil Construction Site Management and Countermeasures

    Institute of Scientific and Technical Information of China (English)

    吴俊

    2014-01-01

    目前,我国土建工程在施工过程中,由于受原材料控制、管理、施工技术水平、施工工艺、地质条件等因素的影响,经常会发生一些问题,给群众的财产和生命安全造成了威胁。本文主要针对土建施工过程中的现场管理问题,探讨了相应的解决对策。%At present, in the construction process of civil eng-ineering in our country, because of suffering the effects of raw material control, management, the level of construction techn-ology, construction technology, geological conditions and oth-er factors, there are some problems posing a threat to people’s property and life safety. This paper mainly aimed at the prob-lems in the process of construction site management, discuss-ing the corresponding solving countermeasures.

  12. In the Ruins of Civilizations: Narrative Structures, World Constructions, and Physical Realities in the Post-Apocalyptic Novel [Reseña de libro

    OpenAIRE

    Weidner, Chad

    2014-01-01

    Reseña de libro: Sibylle Machat, In the Ruins of Civilizations: Narrative Structures, World Constructions, and Physical Realities in the Post-Apocalyptic Novel (Trier: Wissenschaftlicher Verlag Trier, 2013), 330pp.

  13. Skeletal muscle tissue engineering: strategies for volumetric constructs

    OpenAIRE

    Cittadella Vigodarzere, Giorgio; Mantero, Sara

    2014-01-01

    Skeletal muscle tissue is characterized by high metabolic requirements, defined structure and high regenerative potential. As such, it constitutes an appealing platform for tissue engineering to address volumetric defects, as proven by recent works in this field. Several issues common to all engineered constructs constrain the variety of tissues that can be realized in vitro, principal among them the lack of a vascular system and the absence of reliable cell sources; as it is, the only succes...

  14. Skeletal muscle tissue engineering: strategies for volumetric constructs

    OpenAIRE

    Giorgio eCittadella Vigodarzere; Sara eMantero

    2014-01-01

    Skeletal muscle tissue is characterized by high metabolic requirements, defined structure and high regenerative potential. As such, it constitutes an appealing platform for tissue engineering to address volumetric defects, as proven by recent works in this field.Several issues common to all engineered constructs constrain the variety of tissues that can be realized in vitro, principal among them the lack of a vascular system and the absence of reliable cell sources; as it is, the only success...

  15. Skeletal muscle tissue engineering: strategies for volumetric constructs

    Directory of Open Access Journals (Sweden)

    Giorgio eCittadella Vigodarzere

    2014-09-01

    Full Text Available Skeletal muscle tissue is characterized by high metabolic requirements, defined structure and high regenerative potential. As such, it constitutes an appealing platform for tissue engineering to address volumetric defects, as proven by recent works in this field.Several issues common to all engineered constructs constrain the variety of tissues that can be realized in vitro, principal among them the lack of a vascular system and the absence of reliable cell sources; as it is, the only successful tissue engineering constructs are not characterized by active function, present limited cellular survival at implantation and possess low metabolic requirements.Recently, functionally competent constructs have been engineered, with vascular structures supporting their metabolic requirements. In addition to the use of biochemical cues, physical means, mechanical stimulation and the application of electric tension have proven effective in stimulating the differentiation of cells and the maturation of the constructs; while the use of co-cultures provided fine control of cellular developments through paracrine activity. This review will provide a brief analysis of some of the most promising improvements in the field, with particular attention to the techniques that could prove easily transferable to other branches of tissue engineering.

  16. Value engineering awareness study for sustainable construction in Malaysia

    Science.gov (United States)

    U, Fathoni; M, Zakaria C.; O, Rohayu C.

    2013-06-01

    Construction process has often been described as a highly complex process because of the number of disciplines involved during the conceptual, design and construction stage. With the emergence of latest technology and concern for environment, increasing attention in construction industry is given on sustainability. Balance in quality and sustainability has become a major challenge to the construction industry. This paper presents a study that has conducted to determine the acceptance and application of Value Engineering (VE) and Life Cycle Cost Analysis (LCCA) in Malaysia construction industry. A set of questionnaire have distributed to different practitioners in construction industry and the result has reflect the fact that the application of VE and LCCA are still very low.

  17. Image restoration for civil engineering structure monitoring using imaging system embedded on UAV

    Science.gov (United States)

    Vozel, Benoit; Dumoulin, Jean; Chehdi, Kacem

    2013-04-01

    Nowadays, civil engineering structures are periodically surveyed by qualified technicians (i.e. alpinist) operating visual inspection using heavy mechanical pods. This method is far to be safe, not only for civil engineering structures monitoring staff, but also for users. Due to the unceasing traffic increase, making diversions or closing lanes on bridge becomes more and more difficult. New inspection methods have to be found. One of the most promising technique is to develop inspection method using images acquired by a dedicated monitoring system operating around the civil engineering structures, without disturbing the traffic. In that context, the use of images acquired with an UAV, which fly around the structures is of particular interest. The UAV can be equipped with different vision system (digital camera, infrared sensor, video, etc.). Nonetheless, detection of small distresses on images (like cracks of 1 mm or less) depends on image quality, which is sensitive to internal parameters of the UAV (vibration modes, video exposure times, etc.) and to external parameters (turbulence, bad illumination of the scene, etc.). Though progresses were made at UAV level and at sensor level (i.e. optics), image deterioration is still an open problem. These deteriorations are mainly represented by motion blur that can be coupled with out-of-focus blur and observation noise on acquired images. In practice, deteriorations are unknown if no a priori information is available or dedicated additional instrumentation is set-up at UAV level. Image restoration processing is therefore required. This is a difficult problem [1-3] which has been intensively studied over last decades [4-12]. Image restoration can be addressed by following a blind approach or a myopic one. In both cases, it includes two processing steps that can be implemented in sequential or alternate mode. The first step carries out the identification of the blur impulse response and the second one makes use of this

  18. COST Action TU1208 "Civil Engineering Applications of Ground Penetrating Radar": ongoing research activities and third-year results

    Science.gov (United States)

    Pajewski, Lara; Benedetto, Andrea; Loizos, Andreas; Tosti, Fabio

    2016-04-01

    This work aims at disseminating the ongoing research activities and third-year results of the COST (European COoperation in Science and Technology) Action TU1208 "Civil Engineering Applications of Ground Penetrating Radar." About 350 experts are participating to the Action, from 28 COST Countries (Austria, Belgium, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Ireland, Italy, Latvia, Malta, Macedonia, The Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom), and from Albania, Armenia, Australia, Colombia, Egypt, Hong Kong, Jordan, Israel, Philippines, Russia, Rwanda, Ukraine, and United States of America. In September 2014, TU1208 has been recognised among the running Actions as "COST Success Story" ("The Cities of Tomorrow: The Challenges of Horizon 2020," September 17-19, 2014, Torino, IT - A COST strategic workshop on the development and needs of the European cities). The principal goal of the COST Action TU1208 is to exchange and increase scientific-technical knowledge and experience of GPR techniques in civil engineering, whilst simultaneously promoting throughout Europe the effective use of this safe and non-destructive technique in the monitoring of infrastructures and structures. Moreover, the Action is oriented to the following specific objectives and expected deliverables: (i) coordinating European scientists to highlight problems, merits and limits of current GPR systems; (ii) developing innovative protocols and guidelines, which will be published in a handbook and constitute a basis for European standards, for an effective GPR application in civil- engineering tasks; safety, economic and financial criteria will be integrated within the protocols; (iii) integrating competences for the improvement and merging of electromagnetic scattering techniques and of data- processing techniques; this will lead to a novel freeware tool for the localization of

  19. Time Delay Estimation algorithms adapted to dispersive media - Application to the NDT&E of civil engineering materials

    OpenAIRE

    CHAHINE, Khaled

    2010-01-01

    Time delays are generally estimated for NDT&E purposes, under the assumption of dispersion free media. As opposed to the latter, this work intends to adapt the subspace and MPM family algorithms to the dispersive nature of civil engineering materials (hydraulic concrete, soils) for which the dispersion obeys to the Q-constant model (Jonscher). Two solutions are proposed to jointly estimate the time delay, T, and the Q factor attached to each layer. The performance of algorithms is assessed ag...

  20. Validation of the GPU-Accelerated CFD Solver ELBE for Free Surface Flow Problems in Civil and Environmental Engineering

    OpenAIRE

    Christian F. Janßen; Dennis Mierke; Micha Überrück; Silke Gralher; Thomas Rung

    2015-01-01

    This contribution is dedicated to demonstrating the high potential and manifold applications of state-of-the-art computational fluid dynamics (CFD) tools for free-surface flows in civil and environmental engineering. All simulations were performed with the academic research code ELBE (efficient lattice boltzmann environment, http://www.tuhh.de/elbe). The ELBE code follows the supercomputing-on-the-desktop paradigm and is especially designed for local supercomputing, without tedious accesses t...

  1. Conditions of contract for construction for building and engineering works designed by the employer : general conditions : guidance for the preparation of particular conditions forms of letter of tender, contract agreement and dispute adjudication agreement

    CERN Document Server

    1999-01-01

    Conditions of Contract for Construction, which are recommended for building or engineering works designed by the Employer or by his representative, the Engineer. Under the usual arrangements for this type of contract, the Contractor constructs the works in accordance with a design provided by the Employer. However, the works may include some elements of Contractor-designed civil, mechanical, electrical and/or construction works.

  2. Education and training requirements for a practicing civil engineer to qualify for registration in Australasia and the United Kingdom

    OpenAIRE

    Yeung, ATC

    2013-01-01

    The making a qualified and competent engineer requires education, practical training, and a professional assessment. Obtaining a professional registration is an indication of competence and willingness to shoulder the legal and social responsibilities required to be an engineer. It also gives the general public the sense of confidence for engineering works designed and constructed by engineers. The requirements and procedure of registration can be stipulated in law, and/or controlled by profe...

  3. Contracting Economics of Large Engineering and Construction Projects

    NARCIS (Netherlands)

    Berends, T.C.

    2007-01-01

    Large Engineering and Construction Projects (LECPs) form an important area of economic activity, covering a range of different artefacts. These projects have in common that they are massive undertakings, spanning long time periods and they involve large capital investments. Uncertainty and risk are

  4. New Technological Charts for Concreting Operations on Site for Civil Constructions

    OpenAIRE

    René Antonio Puig Martínez; Juan José Howland Albear

    2014-01-01

    The on site concreting of constructions, require some regulations to guide the construction companiesto execute the concreting operations according to the status and potential of existing technologies.In Cuba were used for a long time many regulations and construction technical standards issued bythe Ministry of Construction and relating companies, and was published in 1990 the only one versionof Technological Charts for concreting operations on site, about the existing constructions in Cuba,...

  5. Evaluation of GPR techniques for civil-engineering applications: study on a test site

    Science.gov (United States)

    Grandjean, G.; Gourry, J. C.; Bitri, A.

    2000-10-01

    Different ground-penetrating radar (GPR) techniques have been tested on the same site in order to establish the performance and reliability of this method when applied to civil-engineering problems. The Laboratoire Central des Ponts et Chaussées (LCPC) test site at Nantes, France, was selected because it includes most of the underground heterogeneities commonly found in urban contexts, such as pipes, small voids, etc. The GPR survey consisted in recording measurements in tomographic (surface to horizontal borehole measurements), monostatic (2D surface profiling) and bistatic (Common Mid Point [CMP]) modes above various buried heterogeneities. Different processing techniques were also performed, such as tomographic inversion, 2D and 3D migration, velocity analysis, as well as numerical simulations, the results of which can be summarized in three points. (1) Although the different filling materials of the site can be distinguished by velocity and attenuation tomography, the buried heterogeneities are more difficult to identify because of limited resolution related to angular aperture and Fresnel zone. (2) 2D surface profiling can detect the different shallow heterogeneities, such as pipes and voids, down to a depth of several meters. Additional processing, such as forward modeling and attenuation curve analysis, provides more quantitative information related to the medium. A comparison between 2D and 3D migrated data highlights the error introduced when the structures are considered to be perfectly cylindrical. (3) CMP analysis gives relatively good estimations of vertical velocity contrasts when the medium is layered. A lithologic log can be derived assuming that the velocity changes are related to material variations.

  6. 我国生态文明建设中政府的职能%Research of Government Functions in the Construction of Ecological Civilization in China

    Institute of Scientific and Technical Information of China (English)

    崔小杰; 鲁敏

    2014-01-01

    s:Ecological civilization is a new stage in the development of civilization .Ecological civilization is a social mode of production and lifestyle revolutionary change .The ecological functions of our government are arising with the development of ecological civilization .This paper analyzes the important role of government in ecological civiliza-tion construction .Clarify the functions of government in the process of building ecological civilization and responsi -bilities.Explore an effective way for the government to build an ecological civilization ,and promote ecological civili-zation construction decision-making reference for the government .%生态文明是人类文明发展的一个新阶段,生态文明建设是社会生产方式、生活方式的革命性变革。我国政府的生态职能是随着我国生态文明建设的发展而产生的。分析了政府在生态文明建设中的重要作用,明确了政府在生态文明建设过程中的职能与责任,探索了政府建设生态文明的有效途径,为政府推进生态文明建设的决策提供参考。

  7. Early ceremonial constructions at Ceibal, Guatemala, and the origins of lowland Maya civilization.

    Science.gov (United States)

    Inomata, Takeshi; Triadan, Daniela; Aoyama, Kazuo; Castillo, Victor; Yonenobu, Hitoshi

    2013-04-26

    The spread of plaza-pyramid complexes across southern Mesoamerica during the early Middle Preclassic period (1000 to 700 BCE) provides critical information regarding the origins of lowland Maya civilization and the role of the Gulf Coast Olmec. Recent excavations at the Maya site of Ceibal, Guatemala, documented the growth of a formal ceremonial space into a plaza-pyramid complex that predated comparable buildings at other lowland Maya sites and major occupations at the Olmec center of La Venta. The development of lowland Maya civilization did not result from one-directional influence from La Venta, but from interregional interactions, involving groups in the southwestern Maya lowlands, Chiapas, the Pacific Coast, and the southern Gulf Coast.

  8. Knowledge creation and innovation in a civil engineering course for the first-year university students

    Science.gov (United States)

    Salmisto, Alpo; Nokelainen, Petri

    2015-09-01

    This article examines the application of knowledge creation learning and innovation to higher education in construction. The objectives are to demonstrate the application of the course based on knowledge creation learning to mass teaching and to analyse whether knowledge creation learning improves student motivation and learning. The empirical data (n = 120) consist of the results of a student survey from two university-level courses. The first course, Basics of Construction Management and Economics (n = 79), was developed on the basis of knowledge creation, and the second course, Building Project (n = 41), was implemented using the case-based learning method. The results, based on student self-assessments, showed that case-based learning supported the learning process more effectively than did the course based on knowledge creation. On the other hand, the results showed the relevance of applying knowledge creation-based learning to the mass teaching of construction in higher education. The findings of this empirical study suggest that more attention should focus on developing students' metacognitive skills in engineering education.

  9. Current State of Numerical Simulations and Testing for the Blast and Impact Protection of the Build Civil Engineering Infrastructure

    Institute of Scientific and Technical Information of China (English)

    GEBBEKEN Norbert

    2006-01-01

    The identification of the critical infrastructure has shown that the build civil engineering infrastructure is almost involved everywhere,even with the IT-infrastructure.Therefore,the passive safety of structures is demanded.Security associations have analysed that most assaults came along with explosion and impact scenarios,which amount in 80% of assaults.Consequently,these are the extraordinary loads the structures have to be planned and designed for.To carry out such an engineering job,the engineer has to be educated in multiple disciplines as physics,material science,continuum mechanics,numerical mechanics,testing,structural engineering and related specific fields as wave propagation etc.In this paper we will concentrate on the subjects of numerical simulation and testing.

  10. Study of reuse drill cuttings as aggregate in the civil construction industry; Estudo para reaproveitamento do cascalho de perfuracao como agregado na industria da construcao civil

    Energy Technology Data Exchange (ETDEWEB)

    Neder, L.T.C. [PETROBRAS, Rio de Janeiro, RJ (Brazil). Exploracao e Producao. Seguranca, Meio Ambiente e Saude; Santos, E.; Bezerra, M.T.A.; Farias, J.G.; Felizardo, A.; Santos, A.S.; Ribeiro, J.C. [PETROBRAS, Natal/Fortaleza, RN/CE (Brazil). Unidade de Negocio; Curti, R.; Suto, A.J. [Associacao Brasileira de Cimento Portland, Jaguare, SP (Brazil)

    2004-07-01

    This study was conducted to verify technical feasibility in reusing drill cuttings originated in oil and gas exploration and production to produce concrete or mortar elements. It consisted of physical and chemical characterization of all items used to build field-cured cement samples - drill cuttings, cement and used aggregates; evaluation of resistance; environmental behavior and classification of the resultant materials. The results had demonstrated the reuse of drill cuttings is possible from both technical and environmental perspective and the ratio of concrete or mortar can be customized according to physical and mechanical needs of end products. In the civil construction elements can be built and used as road basis, ground-cement base, blocks and bricks and other non-structural elements. The application of these elements in E and P operations include containment walls for onshore wells, collecting stations, pipeline brackets, supports and hold-down anchors as well as road pavement and access. From the standpoint of chemical safety, the resultant elements made-up from drill cuttings had demonstrated no potential risk for hydrocarbon leaching (TPH), Polycyclic Aromatic Hydrocarbons (PAH's), Volatile Organic Compounds (BTEX), Phenols nor Metals. From these results many improvements in the E and P waste management can be established, bringing both economy and greater environment protection measures for the Oil and Gas Exploration and Production operations. (author)

  11. STRATEGY FOR IMPROVEMENT OF SAFETY AND EFFICIENCY OF COMPUTER-AIDED DESIGN ANALYSIS OF CIVIL ENGINEERING STRUCTURES ON THE BASIS OF THE SYSTEM APPROACH

    OpenAIRE

    Zaikin Vladimir Genrikhovich; Valuyskikh Viktor Petrovich

    2012-01-01

    The authors highlight three problems of the age of information technologies and proposes the strategy for their resolution in relation to the computer-aided design of civil engineering structures. The authors express their concerns in respect of globalization of software programmes designated for the analysis of civil engineering structures and employed outside of Russia. The problem of the poor quality of the input data has reached Russia. Lately, the rate of accidents of buildings and s...

  12. Engineered human vascularized constructs accelerate diabetic wound healing.

    Science.gov (United States)

    Shen, Yu-I; Cho, Hongkwan; Papa, Arianne E; Burke, Jacqueline A; Chan, Xin Yi; Duh, Elia J; Gerecht, Sharon

    2016-09-01

    Stem cell-based therapy is emerging as a promising approach for chronic diabetic wounds, but strategies for optimizing both cellular differentiation and delivery remain as major obstacles. Here, we study bioengineered vascularized constructs as a therapeutic modality for diabetic wound healing. We developed a wound model in immunodeficient rodent and treated it with engineered vascularized constructs from endothelial progenitors or early vascular cells-derived from human induced pluripotent stem cells (hiPSCs) reprogrammed either from healthy donor or type-1 diabetic patient. We found that all vascularized constructs expedited wound closure and reperfusion, with endothelial progenitor constructs having the earliest maximum closure rate followed closely by healthy and diabetic hiPSC-derivative constructs. This was accompanied by rapid granulation layer formation and regression in all vascularized construct groups. Macrophage infiltration into the hydrogel matrix occurred during early stages of healing, seeming to facilitate rapid neovascularization of the wound that could then better persist in the vascularized constructs. Blood perfusion of the human vasculature could be detected after three days, indicating rapid integration with the host vasculature. Overall, we propose a potential therapeutic strategy using allograft or autologous vascularized constructs to treat type-1 diabetic wounds. This approach highlights the unprecedented prospects of designing patient-specific stem cell therapy. PMID:27328431

  13. The Effect of Rotor Cruise Tip Speed, Engine Technology and Engine/Drive System RPM on the NASA Large Civil Tiltrotor (LCTR2) Size and Performance

    Science.gov (United States)

    Robuck, Mark; Wilkerson, Joseph; Maciolek, Robert; Vonderwell, Dan

    2012-01-01

    A multi-year study was conducted under NASA NNA06BC41C Task Order 10 and NASA NNA09DA56C task orders 2, 4, and 5 to identify the most promising propulsion system concepts that enable rotor cruise tip speeds down to 54% of the hover tip speed for a civil tiltrotor aircraft. Combinations of engine RPM reduction and 2-speed drive systems were evaluated. Three levels of engine and the drive system advanced technology were assessed; 2015, 2025 and 2035. Propulsion and drive system configurations that resulted in minimum vehicle gross weight were identified. Design variables included engine speed reduction, drive system speed reduction, technology, and rotor cruise propulsion efficiency. The NASA Large Civil Tiltrotor, LCTR, aircraft served as the base vehicle concept for this study and was resized for over thirty combinations of operating cruise RPM and technology level, quantifying LCTR2 Gross Weight, size, and mission fuel. Additional studies show design sensitivity to other mission ranges and design airspeeds, with corresponding relative estimated operational cost. The lightest vehicle gross weight solution consistently came from rotor cruise tip speeds between 422 fps and 500 fps. Nearly equivalent results were achieved with operating at reduced engine RPM with a single-speed drive system or with a two-speed drive system and 100% engine RPM. Projected performance for a 2025 engine technology provided improved fuel flow over a wide range of operating speeds relative to the 2015 technology, but increased engine weight nullified the improved fuel flow resulting in increased aircraft gross weights. The 2035 engine technology provided further fuel flow reduction and 25% lower engine weight, and the 2035 drive system technology provided a 12% reduction in drive system weight. In combination, the 2035 technologies reduced aircraft takeoff gross weight by 14% relative to the 2015 technologies.

  14. A review of factors influencing underground construction quality and the performance of engineered features

    International Nuclear Information System (INIS)

    This report describes research to identify and rank the factors that should be considered for an assessment of the radioactive containment capability of repository engineered features. Containment is to be achieved through the use of multiple barriers to radionuclide movement, including the waste, waste container, repository structures and backfill, and repository seals. A review of the literature is used to identify radionuclide mobilisation and transport processes for the anticipated environmental conditions, and to compile a data base of repository design features, functional requirements, and design objectives. For selected design components, the report identifies alternative designs and factors contributing to design, focusing on the requirements for a design process, design specifications, construction requirements, and quality assurance requirements for the both design and construction. Existing practice in large, underground civil construction projects is used as a part of comparison, in conjunction with reported performance assessments, to determine those areas in which the repository developer will need to provide additional data, justification, and documentation prior to construction to ensure that performance requirements can be achieved. (Author)

  15. Modelling a Global EPCM (Engineering, Procurement and Construction Management Enterprise

    Directory of Open Access Journals (Sweden)

    Sekhar Chattopadhyay

    2010-03-01

    Full Text Available This paper investigates the applicability of enterprise architectures in the context of current business environment by examining the application of Purdue Enterprise Reference Architecture to WorleyParsons, a global engineering, procurement and construction management enterprise, under the backdrop of a similar study carried out on Fluor Daniel during mid-nineties of the last century. The outcome of this study recommends the need for new enterprise architecture, the People-Centric Enterprise Architecture that not only focuses on human dimension in modern enterprises as the central thread, but also includes more business characteristics of the enterprise other than engineerings.

  16. Relacionamento interorganizacional na cadeia de suprimentos: um estudo de caso na indústria da construção civil The interorganizational relationship in the supply chain: a case study in the civil construction industry

    Directory of Open Access Journals (Sweden)

    Renata Albergaria de Mello Bandeira

    2009-01-01

    Full Text Available O escopo deste trabalho consiste em promover uma discussão sobre os mecanismos de coordenação das relações interorganizacionais - poder e cooperação - na cadeia de suprimentos da indústria da construção civil. O poder, como um construto de relações interorganizacionais, tem recebido um tratamento irregular e conflitante por parte dos analistas. No entanto, esta abordagem ignora relações existentes que são muito apropriadas para certos contextos do relacionamento interfirmas. Logo, foi desenvolvido um estudo de caso em um elo da indústria da construção civil com o intuito de identificar suas relações como sendo baseadas em dominação ou cooperação. São analisadas, ainda, as implicações dos resultados da pesquisa na gestão da cadeia de suprimentos da construção civil.The article discusses the relationship in the supplier chain in the civil construction industry. The main objective is to define if it is a cooperative relation among the intervenients or if the most powerful dictates the rules. Power as an interorganizational construct has been observed by analysts with an irregular and conflictive point of view. However, these analysts ignore completely existing relationships that are very appropriate in some existing relationships among enterprises. Due to that, it was verified het type of relationship developed by two intervenients in one step of the supply chain of a civil construction company to determine if it is cooperative or if, otherwise, the main actor uses its power to lead the chain. The researchers also analyze what are the implications of this study in the civil construction industry's supply management.

  17. Complex engineering objects construction using Multi-D innovative technology

    International Nuclear Information System (INIS)

    Multi-D technology is an integrated innovative project management system for a construction of complex engineering objects based on a construction process simulation using an intellectual 3D model. Multi-D technology includes: • The unified schedule of E+P+C; • The schedule of loading of human resources, machines & mechanisms; • The budget of expenses and the income integrated with the schedule; • 3D model; • Multi-D model; • Weekly-daily tasks (with 4th level schedules); • Control system of interaction of Customer-EPC(m) company - Contractors; • Change and configuration management system

  18. FacilitatingIndustrial Placement in the Construction Engineering Curriculum

    DEFF Research Database (Denmark)

    Wandahl, Søren; Ussing, Lene Faber

    2016-01-01

    outset in the hypothesis that external effectiveness (industry readiness) is better in those modes of education that, at least in part, are based on the world of work itself, and several sources highlight the necessity of strong links between engineering education and industry. Hence, it becomes central......There is often a claim that there is a disconnection between theory and practice, which raises questions on student’s readiness for employment and the extent that higher education responds effectively to the evolving needs of the construction industry. Industrial placements schemes can facilitate...... student learning from construction practice whereby students can reflect on their learning experience at the university. The interplay between traditional engineering curriculum and the context-based learning is important for securing the right skills and competencies among the graduates. This paper takes...

  19. Facilitating Industrial Placement in the Construction Engineering Curriculum

    DEFF Research Database (Denmark)

    Wandahl, Søren; Faber, Lene

    2016-01-01

    outset in the hypothesis that external effectiveness (industry readiness) is better in those modes of education that, at least in part, are based on the world of work itself, and several sources highlight the necessity of strong links between engineering education and industry. Hence, it becomes central......There is often a claim that there is a disconnection between theory and practice, which raises questions on student’s readiness for employment and the extent that higher education responds effectively to the evolving needs of the construction industry. Industrial placements schemes can facilitate...... student learning from construction practice whereby students can reflect on their learning experience at the university. The interplay between traditional engineering curriculum and the context based learning is important for securing the right skills and competencies among the graduates. This paper takes...

  20. On the Estimate Method of Construction Engineering Cost Based on the RS-GA-NNA Model

    Directory of Open Access Journals (Sweden)

    Xie Zheng

    2012-07-01

    Full Text Available Given the low intelligent level and the low accuracy of valuation of civil architecture projects, we put forward in the study a constructional engineering assessment method based on Artificial Intelligence which taking advantage of data-calculation from rough set theory, genetic algorithm and neural network algorithm. First, the rough set theory is used to reduce the discrete attributes to optimize the input variables of BP neural network. And then use the global search feature of genetic algorithm to optimize the initial weight and the threshold value of BP neural network. The new algorithm covers both the global random search capability of genetic algorithm and the learning ability and robustness of neural network, thus the computational speed and accuracy have been more significantly improved than the traditional methods. To empirically analyze a case selected from a city in Hunan Province, the results show that the new algorithm model can rely on the engineering features, assess the construction costs scientifically and objectively and have high practical value.

  1. Analysis of the Civil Servants' Professional Ethics Construction%浅析我国公务员职业伦理建设

    Institute of Scientific and Technical Information of China (English)

    唐文婷

    2012-01-01

    Civil level of professional ethics is an important benchmark to measure the ethical standards of a society as a whole,and how to strengthen the civil servants professional ethics is a topic of great value.This article focuses on the connotation of the civil servants professional ethics,the difficulties faced by China's civil servants professional ethics construction,as well as explore the developed countries,civil servants professional ethics construction of useful experience and enlightenment for China's national conditions,to make some suggestions for the civil servants professional ethics construction,in order to be able to provide a reference.%公务员职业伦理水平是衡量一个社会整体道德水平的重要标杆,如何加强公务员职业伦理建设,是具有重要价值的课题。本文主要阐述公务员职业伦理的内涵,我国公务员职业伦理建设面临的困境,以及探讨发达国家公务员职业伦理建设对我国的有益经验和启示,从而针对中国国情,为公务员职业伦理建设的构建提出一些建议,以期能够提供参考。

  2. Two-phase repository construction concept: Engineering feasibility study

    International Nuclear Information System (INIS)

    As part of the Conceptual Design of a High Level Nuclear Waste Repository in Salt, and Engineering Feasibility Study was performed to evaluate the validity of the proposed two-phase repository construction concept as described in the Mission Plan. As a result of this study, the two-phase repository construction concept can be considered valid. The uncertainty associated with the site-related permitting and licensing process remains the major element of risk to the program schedule. With the application of the two-phase approach, surface and subsurface construction activities can be removed from the critical path. For this study, the Davis Canyon, Utah site was used. The study includes preliminary designs of the two-phase repository, surface and subsurface layouts, an overall integrated schedule, and cost estimates and evaluations regarding schedule and technical issues. 4 refs., 19 figs., 21 tabs

  3. SMC Concrete funds new undergraduate scholarship in College of Engineering

    OpenAIRE

    Gilbert, Karen

    2006-01-01

    Chris Houpos of Suffolk, Va., a junior majoring in civil and environmental engineering in the College of Engineering at Virginia Tech, is the recipient of the university's first SMC Concrete Scholarship. The scholarship is directed towards civil engineering students focusing on structural engineering and construction.

  4. MR elastography monitoring of tissue-engineered constructs.

    Science.gov (United States)

    Othman, Shadi F; Curtis, Evan T; Plautz, Sarah A; Pannier, Angela K; Butler, Stephanie D; Xu, Huihui

    2012-03-01

    The objective of tissue engineering (TE) is to create functional replacements for various tissues; the mechanical properties of these engineered constructs are critical to their function. Several techniques have been developed for the measurement of the mechanical properties of tissues and organs; however, current methods are destructive. The field of TE will benefit immensely if biomechanical models developed by these techniques could be combined with existing imaging modalities to enable noninvasive, dynamic assessment of mechanical properties during tissue growth. Specifically, MR elastography (MRE), which is based on the synchronization of a mechanical actuator with a phase contrast imaging pulse sequence, has the capacity to measure tissue strain generated by sonic cyclic displacement. The captured displacement is presented in shear wave images from which the complex shear moduli can be extracted or simplified by a direct measure, termed the shear stiffness. MRE has been extended to the microscopic scale, combining clinical MRE with high-field magnets, stronger magnetic field gradients and smaller, more sensitive, radiofrequency coils, enabling the interrogation of smaller samples, such as tissue-engineered constructs. The following topics are presented in this article: (i) current mechanical measurement techniques and their limitations in TE; (ii) a description of the MRE system, MRE theory and how it can be applied for the measurement of mechanical properties of tissue-engineered constructs; (iii) a summary of in vitro MRE work for the monitoring of osteogenic and adipogenic tissues originating from human adult mesenchymal stem cells (MSCs); (iv) preliminary in vivo studies of MRE of tissues originating from mouse MSCs implanted subcutaneously in immunodeficient mice with an emphasis on in vivo MRE challenges; (v) future directions to resolve current issues with in vivo MRE in the context of how to improve the future role of MRE in TE.

  5. Construction of Civil and Public Facilities of Chinese Cities in 2006

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    <正>In 2006, by adopting the Scientific View of Development to guide the urban con-struction, the municipal governments of different levels in China continued to carry out the policies and measures issued by the Central Government con-

  6. New Technological Charts for Concreting Operations on Site for Civil Constructions

    Directory of Open Access Journals (Sweden)

    René Antonio Puig Martínez

    2014-03-01

    Full Text Available The on site concreting of constructions, require some regulations to guide the construction companiesto execute the concreting operations according to the status and potential of existing technologies.In Cuba were used for a long time many regulations and construction technical standards issued bythe Ministry of Construction and relating companies, and was published in 1990 the only one versionof Technological Charts for concreting operations on site, about the existing constructions in Cuba,that are in obsolescence in this moment. During more than two decades, the country has experimentedvery rapidly develop of on site concreting technologies according with the development achieved bythe construction industry, importing or producing new efficient and productive equipments. The newtechnological charts are the result of the authors research project. They have proposed the suitableprocedures for the preparation, transportation, pouring, compaction and curing of the concrete mix incorrespondence with the country "state of the art", and the consumption normative of workers,equipments, time and costs of these activities, using the "concreting flow" as a regulator of theconcreting system.

  7. How Much Is Enough? Examining Computer Science and Civil Engineering Citation Data to Inform Collection Development and Retention Decisions in Three Large Canadian University Libraries

    Science.gov (United States)

    Spence, Michelle; Mawhinney, Tara; Barsky, Eugene

    2012-01-01

    Science and engineering libraries have an important role to play in preserving the intellectual content in research areas of the departments they serve. This study employs bibliographic data from the Web of Science database to examine how much research material is required to cover 90% of faculty citations in civil engineering and computer…

  8. Tunnel Engineering Construction Schedule Analysis and Management Based on Visual Simulation

    Institute of Scientific and Technical Information of China (English)

    SONG Yang; ZHONG Wei

    2007-01-01

    The methodology of visual simulation for a tunnel engineering construction schedule is presented. Visualization of simulation model, calculation and result of construction schedule simulation is realized, and the construction simulation and the resource optimization of tunnel engineering are made. A risk analysis and a decision-making method of tunnel engineering construction schedule based on visual simulation are presented. Furthermore, using S curve theory and schedule management method, the real-time management and control method of tunnel engineering construction based on visual simulation is presented. The application to the tunnel engineering construction schedule analysis and management shows the feasibility and effectiveness of the method presented in this paper.

  9. COST Action TU1208 "Civil Engineering Applications of Ground Penetrating Radar:" ongoing research activities and mid-term results

    Science.gov (United States)

    Pajewski, Lara; Benedetto, Andrea; Loizos, Andreas; Slob, Evert; Tosti, Fabio

    2015-04-01

    This work aims at presenting the ongoing activities and mid-term results of the COST (European COoperation in Science and Technology) Action TU1208 'Civil Engineering Applications of Ground Penetrating Radar.' Almost three hundreds experts are participating to the Action, from 28 COST Countries (Austria, Belgium, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Ireland, Italy, Latvia, Malta, Macedonia, The Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom), and from Albania, Armenia, Australia, Egypt, Hong Kong, Jordan, Israel, Philippines, Russia, Rwanda, Ukraine, and United States of America. In September 2014, TU1208 has been praised among the running Actions as 'COST Success Story' ('The Cities of Tomorrow: The Challenges of Horizon 2020,' September 17-19, 2014, Torino, IT - A COST strategic workshop on the development and needs of the European cities). The principal goal of the COST Action TU1208 is to exchange and increase scientific-technical knowledge and experience of GPR techniques in civil engineering, whilst simultaneously promoting throughout Europe the effective use of this safe and non-destructive technique in the monitoring of infrastructures and structures. Moreover, the Action is oriented to the following specific objectives and expected deliverables: (i) coordinating European scientists to highlight problems, merits and limits of current GPR systems; (ii) developing innovative protocols and guidelines, which will be published in a handbook and constitute a basis for European standards, for an effective GPR application in civil- engineering tasks; safety, economic and financial criteria will be integrated within the protocols; (iii) integrating competences for the improvement and merging of electromagnetic scattering techniques and of data- processing techniques; this will lead to a novel freeware tool for the localization of buried objects

  10. Characterization studies for the reuse of phosphogypsum as a raw material in the civil construction industry of Brazil

    International Nuclear Information System (INIS)

    NORM stands for 'naturally occurring radioactive material', which is a material that naturally contains one or more radionuclides, mainly, uranium, thorium and potassium-40, and their radioactive decay products, such as radium and radon. An example of this material is the Phosphogypsum (PG), which results from the processing of phosphate ore into phosphoric acid for fertilizer production. In order to support regulation of the reuse of phosphogypsum as a raw material of the Brazilian civil construction industry, a characterization study was performed. The physical and chemical properties of PG and natural gypsum were determinate by evaluating the results of thermal (DTA and TG), X-ray fluorescence (XRF), X-ray diffraction (XRD) and laser granulometric analyses. The radioactivity concentration of each sample was measured by gamma spectrometry analyses. The results of thermal analyses demonstrated that phosphogypsum must be treated (initially heated in an electrical oven at 60 deg. C for 24 hours, then sieved and heated again at 160 deg. C for one hour) to obtain the same mineralogical properties of the gypsum used in the civil construction industry. The X- ray fluorescence analysis showed that PG and natural gypsum are similar with both being composed mainly of S, O, Ca, P and small quantities of trace elements (Ce, Ti, La, Sr, Zr, and Pr). The main crystalline compounds found in PG samples were gypsita (CaSO4.2H2O) and in natural gypsum were bassanite (CaSO4.0.5H2O). The concentration of Ra-226, Ra-228 and Pb-210 present in PG samples was 467 Bq/kg, 224 Bq/kg and 395 Bq/kg, respectively. The levels of radioactivity in natural gypsum samples were much lower (around 3 Bq/kg). The same behavior was observed for the uranium and thorium content. The results of all the analyses showed that phosphogypsum can be a viable substitute for gypsum, after certain, beneficial processes. (authors)

  11. Environmental guidelines for reuse of ash in civil engineering applications - phase 2; Miljoeriktlinjer foer askanvaendning i anlaeggningsbyggande - etapp 2

    Energy Technology Data Exchange (ETDEWEB)

    Bendz, David; Wik, Ola; Elert, Mark; Haakansson, Karsten

    2006-07-15

    Producers, authorities and users have acknowledged the need for common environmental guidelines for residues. The objective of this project has been to develop a proposal for common environmental guidelines for reuse of ash in civil engineering applications. The project has a narrow risk assessment perspective and focus on a set of substances where a well developed environmental policy and knowledge are available. Health aspects for construction workers are not covered in the project. The starting point in the risk assessment is the assumption that ashes may be used just like any conventional construction material. Special requirements or regulations regarding precautionary actions in the handling of ashes, regarding the site or surroundings will be avoided. The guiding principle has been the precautionary principle: reuse of ash is acceptable only if it constitute an insignificant risk to health and environment. The calculations are based on defined emission- and exposure scenarios. The concept of insignificant risk imply that the impact in the defined points of compliance does not exceed established health- and environmental criteria. The model address health risks associated with spreading of particles and exposure by dust, oral intake, dermal contact and intake by vegetables or wild grown berries and consumption of ground water. Off-site environmental effects in surface waters and in soil as well as health- and environmental risks in the post use phase are also considered. Exposure by dust is addressed in the same way as in the Swedish Environmental Protection Agency's guidelines for contaminated soil. The guidelines values for exposure by dust, oral intake, dermal contact and intake by vegetables or wild grown berries are total content, whereas the guidelines for exposure by consumption of ground water or environmental effects in surface waters are based on leaching properties of the ash. The guidelines rely on a conceptual model, defined emissions and

  12. 论马克思的生态观与生态文明建设%Analyzing the ecological view of Marx and the construction of ecological civilization

    Institute of Scientific and Technical Information of China (English)

    高爽

    2013-01-01

    After the 18 times the national congress of the communist in China, the importance of construction of ecological civilization is highlighted, the construction of ecological civilization is people's well-being, concerns national future long term relationship. Faced with resource constraints tightening, the serious situation of serious environmental pollution, ecosystem degradation, must set up the respect for nature, comply with the nature, protect the natural ecological civilization concept, the ecological civilization construction in a prominent position, blend in economic construction, political construction, cultural construction, social construction and the whole process, all aspects in this article, through a review of the ecological view in marxist classic textbook, introduces the core content of marxist ecological view and the eighteenth big report related to the construction of ecological civilization of spirit, and analyzes the Marx's ecological view and ecological civilization construction of the internal relations, illustrates the ecological civilization construction thought is the inheritance and development of marxist ecological view.%  在党的十八大胜利召开之后,建设生态文明的重要性被重点提及,生态文明建设是关系人民福祉、关乎民族未来的长远大计。面对资源约束趋紧、环境污染严重、生态系统退化的严峻形势,必须树立尊重自然、顺应自然、保护自然的生态文明理念,把生态文明建设放在突出地位,融入经济建设、政治建设、文化建设、社会建设各方面和全过程,文章通过对马克思经典巨著中生态观的回顾,介绍了马克思生态观的核心内容和十八大报告中关于生态文明建设的相关精神,并分析了马克思生态观与生态文明建设的内在关系,说明了生态文明建设思想是马克思生态观的继承和发展。

  13. Petrophysical properties and durability of the Touro amphibolite s (A Coruna, Spain) used in civil engineering; Petrofisica y durabilidad de las anfibolitas de Touro (A Coruna, Espana) para su uso en obra civil

    Energy Technology Data Exchange (ETDEWEB)

    Perez Foretes, A. P.; Varas Muriel, M. J.; Cano Linares, H.; Castineiras Garcia, P.; Pardo Santayana, F.

    2013-09-01

    Nowadays, Touro amphibolites (La Coruna, Spain) are exploited as crushed-rock aggregates in civil engineering. These materials are mainly used as ballast for road construction. Therefore, it is interesting to study these materials in function of several parameters obtained directly in quarry faces. For this purpose, the same techniques and tests previously applied in other fields such as natural stone have been used. The aim of this work is to study the quality and durability of Touro amphibolites when subjected to extreme temperature, water and salt (NaCl) actions. The NaCl is included in this study because it is commonly used as fluxing material in pavements and roads. The quality of these amphibolites, a classification based on the concrete and road tests and the techniques applied, is good. The best properties of these materials are their low porosity and high ability to compact. They also have a high durability under the action of extreme temperatures, salts and water. These results also indicate that these amphibolites can better support high temperature rather than low temperature degradation. (Author)

  14. Computer-aided dental prostheses construction using reverse engineering.

    Science.gov (United States)

    Solaberrieta, E; Minguez, R; Barrenetxea, L; Sierra, E; Etxaniz, O

    2014-01-01

    The implementation of computer-aided design/computer-aided manufacturing (CAD/CAM) systems with virtual articulators, which take into account the kinematics, constitutes a breakthrough in the construction of customised dental prostheses. This paper presents a multidisciplinary protocol involving CAM techniques to produce dental prostheses. This protocol includes a step-by-step procedure using innovative reverse engineering technologies to transform completely virtual design processes into customised prostheses. A special emphasis is placed on a novel method that permits a virtual location of the models. The complete workflow includes the optical scanning of the patient, the use of reverse engineering software and, if necessary, the use of rapid prototyping to produce CAD temporary prostheses.

  15. Interactive Simulator Training in Civil Construction: Evaluation from the Trainer's Perspective

    Science.gov (United States)

    Tichon, Jennifer; Diver, Phil

    2012-01-01

    The popularity of simulators to augment training programs for operators of heavy machinery has been growing across several industries including mining, rail and more recently construction. High-fidelity, interactive simulation is typically achieved through complete immersion in brief, stressful and complex VR scenarios. The use of simulation…

  16. TECHNICAL SOLUTIONS TO CREATE ESTHETICAL CIVIL ENGINEERING STRUCTURES USING THE GEOSYNTHETICS MATERIALS

    Directory of Open Access Journals (Sweden)

    Teodor Eugen Man

    2010-01-01

    Full Text Available Geosynthetics is the term used to describe a range of generally polymeric products used to solve some civil engineeringproblems. The term is generally regarded to encompass eight main product categories: geotextiles, geogrids, geonets,geomembranes, geosynthetic clay liners, geofoam, geocells (cellular confinement and geocomposites. The syntheticpolymeric nature of these products makes them suitable for use in the ground where high levels of durability arerequired. Not only because, properly formulated, they can also be used in exposed applications. Geosynthetics areavailable in a wide range of forms and materials, each to suit a slightly different end use. These products have a widerange of applications and are currently used in many civil, geotechnical, transportation, geoenvironmental, hydraulic,and private development applications including roads, airfields, railroads, embankments, retaining structures,reservoirs, canals, dams, erosion control, sediment control, landfill liners, landfill covers, mining, aquaculture andagriculture. The paper presents basic aspects of geotextiles, drainage, geocomposite designissues and technicalsolutions of their use.

  17. COST Action TU1208 "Civil Engineering Applications of Ground Penetrating Radar": first-year activities and results

    Science.gov (United States)

    Pajewski, Lara; Benedetto, Andrea; Loizos, Andreas; Slob, Evert; Tosti, Fabio

    2014-05-01

    This work aims at presenting the first-year activities and results of COST (European COoperation in Science and Technology) Action TU1208 "Civil Engineering Applications of Ground Penetrating Radar". This Action was launched in April 2013 and will last four years. The principal aim of COST Action TU1208 is to exchange and increase scientific-technical knowledge and experience of GPR techniques in civil engineering, whilst simultaneously promoting throughout Europe the effective use of this safe and non-destructive technique in the monitoring of infrastructures and structures. Moreover, the Action is oriented to the following specific objectives and expected deliverables: (i) coordinating European scientists to highlight problems, merits and limits of current GPR systems; (ii) developing innovative protocols and guidelines, which will be published in a handbook and constitute a basis for European standards, for an effective GPR application in civil- engineering tasks; safety, economic and financial criteria will be integrated within the protocols; (iii) integrating competences for the improvement and merging of electromagnetic scattering techniques and of data- processing techniques; this will lead to a novel freeware tool for the localization of buried objects, shape-reconstruction and estimation of geophysical parameters useful for civil engineering needs; (iv) networking for the design, realization and optimization of innovative GPR equipment; (v) comparing GPR with different NDT techniques, such as ultrasonic, radiographic, liquid-penetrant, magnetic-particle, acoustic-emission and eddy-current testing; (vi) comparing GPR technology and methodology used in civil engineering with those used in other fields; (vii) promotion of a more widespread, advanced and efficient use of GPR in civil engineering; and (viii) organization of a high-level modular training program for GPR European users. Four Working Groups (WGs) carry out the research activities. The first WG

  18. Imagerie par résonance magnétique appliquée aux matériaux du génie civil Magnetic Resonance Imaging Applied to Civil Engineering Materials

    Directory of Open Access Journals (Sweden)

    Coussot P.

    2006-12-01

    Full Text Available Un imageur par résonance magnétique dédié aux matériaux du génie civil et de la construction est actuellement en cours d'acquisition par le LCPC (Laboratoire Central des Ponts et Chaussées. Il sera géré par le LMSGC à Champs-sur-Marne et installé dans les locaux de l'IFI (Institut francilien d'Ingénierie. De nombreuses collaborations avec des laboratoires et des entreprises sont envisagées et certaines déjà mises en place. D'un point de vue général, les recherches concerneront les transferts et changements de phase dans les milieux granulaires et poreux. Une série de dispositifs de recherche complémentaire est à l'étude. Ceux-ci permettront de solliciter les échantillons (chauffage, refroidissement, écoulement, transfert, fissuration tout en réalisant des images de la structure interne. Ceci nous permettra de mettre en relation les propriétés macroscopiques des matériaux et leurs évolutions au niveau mésoscopique. A magnetic resonance imager for use with civil engineering and construction materials is being acquired by the LCPC (Laboratoire Central des Ponts et Chaussées. It will be managed by the LMSGC at Champs-sur-Marne and will be installed on the premises of the IFI (Institut francilien d'Ingénierie. Numerous joint projects between laboratories and industry are contemplated and some are already under way. The general outlook for these research projects is to study transfers and phase changes in granular porous media. A number of supplementary research devices are being studied. These devices will make it possible to submit samples to heating, cooling, flow, transfer and fissuring while recording images of their internal structure. This will allow us to discover the relationship between the macroscopic properties of materials and mesoscopic changes.

  19. Including the people with disabilities at work: a case study of the job of bricklayer in civil construction in Brazil.

    Science.gov (United States)

    Martins, L B; Barkokébas Junior, B; Guimarães, B M

    2012-01-01

    The aim of this paper is to present the results of the evaluation of the job of bricklayer in the construction industry to determine the profile of workers with disabilities who could perform this function and what adjustments are needed. The methods and techniques used in the field study were: direct observation of the activities and the environment, interviews with bricklayers on building sites, a video and photographic record of tasks being carried out to analyze the job of bricklayer, software resources were used. This study set out the disabilities most commonly caused by work accidents in the civil construction industry and simulated the conditions of the individuals to determine whether they could perform the activities of this function and what adaptations are needed. It was observed that workers with hearing impairments could perform activities without any change in the workplace and individuals who had had a leg or foot amputated need to use appropriate prostheses to perform the activities of the function. Thus, it was shown that the activity of professionals with experience in Ergonomics is essential since, by the activity of gathering data and analysing the physical, cognitive and organizational requirements of jobs and by collecting data on and analysing the functional capabilities of the worker with a disability, adaptations to jobs can be adequately defined. PMID:22317447

  20. Constructal Theory Of Design In Engineering And Nature

    Directory of Open Access Journals (Sweden)

    Adrian Bejan

    2005-02-01

    Full Text Available This is a brief introduction to an engineering theory on the origin and generation of geometric form in all flow systems: the animate, the inanimate and the engineered. The theory is named constructal, and is based on the thought that it is natural for currents to construct for themselves in time paths of greater flow access. It is shown that this process of flow path optimization can be reasoned on the basis of principle: the maximization of global performance subject to finite-size constraints. One example is the generation of tree-shaped flow patterns, as paths of least resistance between one point (source, sink and an infinity of points (area, volume, as in the circulatory, respiratory and nervous systems. An other is the generation of regular spacings in heat generating volumes, such as swarms of honeybees. The optimized tree-flow geometries account for allometric laws, e. g., the relationship between the total tube contact area and the body size, the proportionality between metabolic rate and body size raised to the power 3/4, the proportionality between breathing and heartbeating times and body size raised to the power 1/4, and the proportionality between the cruising speed of flying bodies (insects, birds, airplanes and body mass raised to the power 1/6. The optimized flow structures constitute robust designs, and robustness improves as the complexity of the system increases. Flow architectures that are more efficient look more natural.

  1. Climate Change and Construction of Ecological Civilization%气候变化与生态文明建设

    Institute of Scientific and Technical Information of China (English)

    王典; 范广洲

    2015-01-01

    全球气候变化是当今世界的焦点问题。全球变暖导致极端天气和气候事件频发,威胁着人类生存发展。中国作为最大的发展中国家,国家与国民安全受到气候变化的严重影响。为了应对严峻的形势,需要社会和民众大力推进生态文明建设,树立生态文明理念,提高科学技术水平,科学应对气候变化,积极完成节能减排、环境保护等重要任务,使中华民族更加繁荣昌盛。%Nowadays, global climate change as a serious issue causes a lot of attention, bring a significant impact on society and people around the world.Global warming causes frequent extreme weather and climate events, threatening human survival and development.As the biggest developing country, China and its national security are seriously affected by the climate change.To face such a tense situation, Chinese society and people need to greatly promote the construction of ecological civilization, set up the concept of ecological civilization, improve the levels of science and technology, scientifically response to the climate change, positively complete the important tasks, such as, energy conservation, emissions reduction and protection for the environment etc., so as to make China more thriving and prosperous.

  2. 气候变化与生态文明建设%Climate Change and Construction of Ecological Civilization

    Institute of Scientific and Technical Information of China (English)

    王典; 范广洲

    2015-01-01

    全球气候变化是当今世界的焦点问题。全球变暖导致极端天气和气候事件频发,威胁着人类生存发展。中国作为最大的发展中国家,国家与国民安全受到气候变化的严重影响。为了应对严峻的形势,需要社会和民众大力推进生态文明建设,树立生态文明理念,提高科学技术水平,科学应对气候变化,积极完成节能减排、环境保护等重要任务,使中华民族更加繁荣昌盛。%Nowadays, global climate change as a serious issue causes a lot of attention, bring a significant impact on society and people around the world.Global warming causes frequent extreme weather and climate events, threatening human survival and development.As the biggest developing country, China and its national security are seriously affected by the climate change.To face such a tense situation, Chinese society and people need to greatly promote the construction of ecological civilization, set up the concept of ecological civilization, improve the levels of science and technology, scientifically response to the climate change, positively complete the important tasks, such as, energy conservation, emissions reduction and protection for the environment etc., so as to make China more thriving and prosperous.

  3. News in engineering education in Spain effective from 2010 in presence of external changes and mixed crisis, looking mostly to agro and civil engineers

    Science.gov (United States)

    Anton, J. M.; Sanchez, M. E.; Grau, J. B.; Andina, D.

    2012-04-01

    The engineering careers models were diverse in Europe, and are adopting now in Spain the Bolonia process for European Universities. Separated from older Universities, that are in part technically active, Civil Engineering (Caminos, Canales y Puertos) started at end of 18th century in Spain adopting the French models of Upper Schools for state civil servants with exam at entry. After 1800 intense wars, to conserve forest regions Ingenieros de Montes appeared as Upper School, and in 1855 also the Ingenieros Agrónomos to push up related techniques and practices. Other Engineers appeared as Upper Schools but more towards private factories. These ES got all adapted Lower Schools of Ingeniero Tecnico. Recently both grew much in number and evolved, linked also to recognized Professions. Spanish society, into European Community, evolved across year 2000, in part highly well, but with severe discordances, that caused severe youth unemployment with 2008-2011 crisis. With Bolonia process high formal changes step in from 2010-11, accepted with intense adaptation. The Lower Schools are changing towards the Upper Schools, and both that have shifted since 2010-11 various 4-years careers (Grado), some included into the precedent Professions, and diverse Masters. Acceptation of them to get students has started relatively well, and will evolve, and acceptation of new grades for employment in Spain, Europe or outside will be essential. Each Grado has now quite rigid curricula and programs, MOODLE was introduced to connect pupils, some specific uses of Personal Computers are taught in each subject. Escuela de Agronomos centre, reorganized with its old name in its precedent buildings at entrance of Campus Moncloa, offers Grados of Agronomic Engineering and Science for various public and private activities for agriculture, Alimentary Engineering for alimentary activities and control, Agro-Environmental Engineering more related to environment activities, and in part Biotechnology also

  4. 将生态文明贯穿于绿色矿山建设全过程%The ecological civilization throughout the green mine construction process

    Institute of Scientific and Technical Information of China (English)

    乔繁盛

    2013-01-01

    本文在阐明生态文明建设的重要内涵、意义及其在绿色矿业发展中的重要基础作用的基础上,围绕绿色矿山建设基本条件,提出了如何贯彻落实生态文明建设的一些意见和看法,以利于推进绿色矿山建设向深层次发展.%Based on the ecological civilization construction to clarify the important connotation, significance and the important basic role in the green mining development, on the basis of green mine construction around the basic conditions, puts forward how to implement the ecological civilization construction of the some opinions and views, in order to promote the construction of green mine to in-depth development.

  5. Sociedade civil e construção democrática: do maniqueísmo essencialista à abordagem relacional Civil society and democratic construction: from essentialist manichaeism to the relational approach

    Directory of Open Access Journals (Sweden)

    Marcelo Kunrath Silva

    2006-12-01

    Full Text Available Este artigo tem como objetivo problematizar um "objeto" pouco abordado quando se analisam as características tradicionais e autoritárias que bloqueiam a construção democrática no Brasil: a "sociedade civil". A partir do suporte teórico-metodológico da "sociologia relacional" de Norbert Elias e da fundamentação empírica fornecida pela análise comparativa das relações entre sociedade civil e governos municipais em duas cidades da Região Metropolitana de Porto Alegre, questiona-se uma apreensão essencialista e unificadora dos atores sociais, que deixa de perceber a sociedade civil como um espaço de diversidade, de relações de poder e de conflitos, no qual se encontram e intervêm atores marcados por diversas orientações e mantendo diferentes relações com a democracia.This article aims at debating an "object" that has deserved little attention when traditional and authoritarian traits that block democratic construction in Brazil are examined: "civil society". Based on the theoretical-methodological support of Norbert Elias' "relational sociology" and the empirical foundation provided by comparative analysis between civil society and municipal governments in two cities of Porto Alegre's metropolitan area, we question an essentialist and unifying approach of social actors that sees civil society as a space for diversity, power relations and conflict, where actors marked by several orientations meet and keep distinct relations to democracy.

  6. Re-engineering organizations for optimal deployment of smart materials and intelligent devices in civil infrastructure

    Science.gov (United States)

    El-Diraby, Tamer E.; Beheshti, Arzhang

    2002-06-01

    Smart materials and intelligent devices are promising to revolutionize data collection in civil infrastructure. However, their application has so far been very limited in scope. So far, there is no comprehensive mechanisms to integrate data generated by smart materials and intelligent devices into the overall IT systems of user organizations. This article outlines a framework for reengineering organizations for optimal utilization of smart materials and intelligent devices in the infrastructure development domain. The aim is to integrate data collection and management into the organizational culture. The framework includes three basic modules: assessing current practice, identifying level of deployment, and defining the needed actions.

  7. 以制度创新推动生态文明建设%Promote Ecological Civilization Construction by System Innovation

    Institute of Scientific and Technical Information of China (English)

    孙忠英

    2016-01-01

    生态文明制度建设涉及到文化理念、价值观念、生活方式和生产方式等方面的深刻变革。从近几年的实践看,生态文明建设“硬件”投入较大,效果比较明显;而生态文明建设“软件”相对不足,主要表现为生态文明制度不完善,生态文明价值观不够强烈,决策程序不够科学民主,考核方法和制度滞后,生态文明制度体系不健全,环境执法监管不到位。建立和完善生态文明制度,应该从文化制度、决策制度、评价制度、考核制度、协调制度和监管制度等方面着手,以制度建设和创新发展推进生态文明建设。%The construction of ecological civilization system relates to the profound changes in the aspects of cultural idea, value idea, life style and production mode. From the practice in recent years, the "hardware" investment in ecological civilization construction was larger, the effect was more obvious, and the "software" investment in ecological civilization construction was relatively insufficient, the main ecological civilization system was not perfect. The values of ecological civilization was not strong enough, the decision-making process was not scientific and democratic, the assessment methods and system lagged, the system of ecological civilization was not perfect, environmental law enforcement supervision was not in place. Establishing and improving the system of ecological civilization should start from the cultural system, decision-making system, evaluation system, evaluation system, coordination system and regulatory system, to promote ecological civilization construction by system construction and innovating development.

  8. Use of the Colorado SURGE System for Continuing Education for Civil Engineers.

    Science.gov (United States)

    Fead, J. W. N.

    The Colorado State University Resources in Graduate Education (SURGE) program is described in this report. Since it is expected that not all the participants in a graduate engineering program will be able to attend university-based lectures, presentations are video-taped and transported to industrial plants, engineering offices, and other…

  9. Fly Ash in Civil Engineering Stage 1: Inventory/Application; Flygaska i geotekniska anlaeggningar Etapp 1: Inventering/Tillaemplighet

    Energy Technology Data Exchange (ETDEWEB)

    Macsik, Josef; Svedberg, Bo; Lenstroemer, Stina; Nilsson, Thomas [Scandiaconsult, Stockholm (Sweden)

    2004-01-01

    The project presented below is the first phase of a broader project named FACE 'Fly Ash in Civil Engineering'. The objective of the project is to identify environmentally friendly products based on fly ash to be used in geotechnical applications such as road bases etc. In this phase of the project, named 'Inventory/Applicability', different fly ashes have been grouped according to their technical properties and potential applications. The objective of grouping fly ashes is to identify key-properties in order to make future investigations less extensive and also to make it easier to assess potential applications in the future. A total of nine different fly ashes from incineration of bio fuels (Heating Plants and Forest Industry Boilers) were investigated. The investigated fly ashes were all fresh and dry apart from two which originated from landfill. Properties such as grain-size distribution, water content, void-ratio, loss on ignition, compaction properties, increase of shear strength, have been investigated. Analyses of the results indicate that fly ashes can be divided into three main groups A, B and C, where: Group A fly ashes have poor curing properties and need stabilisation agents such as other fly ashes with higher curing capacity or cement (Portland cement, Merit 5000 etc.). Fly ash which has been stored in landfill and has a low content of quick lime is also part of this group. These fly ashes are not appropriate for use without addition of stabilising agent if they are to be used in applications where percolating water and frost-thaw cycles occur. After stabilisation with fresh fly ash and cement, fly ashes from this group can be used in sub-base in roads. Group B fly ashes have medium-high to high content of quick lime and good development of shear strength. These fly ashes can be used without being stabilised with cement. In fact, adding cement can reduce properties of compaction thus reducing the strength of a construction. The

  10. Stem Cells and Scaffolds for Vascularizing Engineered Tissue Constructs

    Science.gov (United States)

    Luong, E.; Gerecht, S.

    The clinical impact of tissue engineering depends upon our ability to direct cells to form tissues with characteristic structural and mechanical properties from the molecular level up to organized tissue. Induction and creation of functional vascular networks has been one of the main goals of tissue engineering either in vitro, for the transplantation of prevascularized constructs, or in vivo, for cellular organization within the implantation site. In most cases, tissue engineering attempts to recapitulate certain aspects of normal development in order to stimulate cell differentiation and functional tissue assembly. The induction of tissue growth generally involves the use of biodegradable and bioactive materials designed, ideally, to provide a mechanical, physical, and biochemical template for tissue regeneration. Human embryonic stem cells (hESCs), derived from the inner cell mass of a developing blastocyst, are capable of differentiating into all cell types of the body. Specifically, hESCs have the capability to differentiate and form blood vessels de novo in a process called vasculogenesis. Human ESC-derived endothelial progenitor cells (EPCs) and endothelial cells have substantial potential for microvessel formation, in vitro and in vivo. Human adult EPCs are being isolated to understand the fundamental biology of how these cells are regulated as a population and to explore whether these cells can be differentiated and reimplanted as a cellular therapy in order to arrest or even reverse damaged vasculature. This chapter focuses on advances made toward the generation and engineering of functional vascular tissue, focusing on both the scaffolds - the synthetic and biopolymer materials - and the cell sources - hESCs and hEPCs.

  11. 生态文明建设中的企业责任%Enterprise Responsibility in Ecological Civilization Construction

    Institute of Scientific and Technical Information of China (English)

    周菡潇

    2014-01-01

    Enterprise responsibility in ecological civilization construction is an important part of enterprise social responsibility, which refers to the ecological obligations of environmental protection, social care a nd dialectical unity of man and nature in the construction of ecological civilization affordably undertaken by the enterprise. In recent years, the growth of pollutant emissions has basically been contained in China. However, due to the defect of administrative system and law enforcement as well as the lack of enterprise self-discipline, the pollution control situation is still grim. This article put forwa rd some reasonable suggestions respectively from three aspects of government, enterprise and public through learning from the advanced experience of the US and Japan, such as improving ecological environment protection laws and regulations system, building enterprise responsibility performance evaluation index system, strengthening enterprise's ecological responsibility training, developing new public responsibility and consumption concept, etc.%生态文明建设中的企业责任是企业社会责任的重要组成部分,是指企业力所能及地承担起环境保护、社会关爱、人与自然辩证统一的生态义务。近年来我国污染物排放增长态势基本得到遏制,但因行政体制与执法存在缺陷、企业自律性不足,污染治理形势依然严峻。通过借鉴美国、日本两国的先进经验,分别从政府、企业、公众层面提出完善生态环境保护法律法规体系,构建企业责任绩效评价指标体系,强化企业生态责任培训,树立公众新的责任感和消费观念等合理建议。

  12. The Construction Contract Management of Constructional Engineering%浅析建筑工程施工合同管理

    Institute of Scientific and Technical Information of China (English)

    周休平; 邱长勇; 唐勇明

    2013-01-01

      本文针对目前建筑工程施工合同管理存在的具体问题,提出了相应的施工合同管理方案,为建筑工程施工合同的管理提供良好的管理措施。%In view of the present specific problems existing in the construction contract management of constructional engineering, this article puts forward the corresponding solutions of the construction contract management, and provides good management measures on construction contract management of constructional engineering.

  13. Management for Construction Materials and Control of Construction Waste in Construction Industry: A Review

    OpenAIRE

    A. A. Gulghane; Prof P. V. Khandve

    2015-01-01

    In recent treads a wide range of building materials is available for the construction of civil engineering structures. The total cost of materials may be up to 60% or more of the total cost incurred in construction project dependent upon the type of project. Effective construction materials management is a key to success for a construction project. Construction waste is another serious problem in construction industry. A large and various types of construction waste with different...

  14. Conceptual Design Report: Fermilab Upgrade. Main Injector. Technical Components and Civil Construction, January, 1989

    Energy Technology Data Exchange (ETDEWEB)

    None

    1989-01-12

    This report contains a description of the design and cost estimate of a new 150 GeV accelerator, designated the Main Injector, which will be required to support the upgrade of the Fermilab Collider. The construction of this accelerator will simultaneously result in significant enhancements to the Fermilab fixed target program. The Main Injector (MI) is to be located south of the Antiproton Source and tangent to the Tevatron ring at the FO straight section as shown in Figure 1-1. The MI will perform all duties currently required of the existing Main Ring. Thus, operation of the Main Ring will cease following commissioning of the MI, with a concurrent reduction in background rates as seen in the colliding beam detectors. The performance of the MI, as measured in terms of protons per second delivered to the antiproton production target or total protons delivered to the Tevatron, is expected to exceed that of the Main Ring by a factor of two to three. In addition the MI will provide high duty factor 120 GeV beam to the experimental areas during collider operation, a capability which does not presently exist in the Main Ring.

  15. Conceptual Design Report: Fermilab Upgrade: Main Injector - Technical Components and Civil Construction, January 1990 (Rev. 2)

    Energy Technology Data Exchange (ETDEWEB)

    none,

    1990-01-10

    This report contains a description of the design and cost estimate of a new 150 GeV accelerator, designated the Main Injector, which will be required to support the upgrade of the Fermilab Accelerator Complex. The construction of this accelerator will simultaneously result in significant enhancements to both the Fermilab collider and fixed target programs. The Main Injector (MI) is to be located south of the Antiproton Source and tangent to the Tevatron ring at the FO straight section as shown in Figure 1-1. The MI will perform all duties currently required of the existing Main Ring. Thus, operation of the Main Ring will cease following commissioning of the MI, with a concurrent reduction in background rates as seen in the colliding beam detectors. The performance of the MI, as measured in terms of protons per second delivered to the antiproton production target or total protons delivered to the Tevatron, is expected to exceed that of the Main Ring by a factor of two to three. In addition the MI will provide high duty factor 120 GeV beam to the experimental areas during collider operation, a capability which does not presently exist in the Main Ring.

  16. Safety analysis report for the Cold Vacuum Drying Facility, phase 1, supporting civil/structural construction

    International Nuclear Information System (INIS)

    The US Department of Energy established the K Basins Spent Nuclear Fuel Project to address safety and environmental concerns associated with deteriorating spent nuclear fuel presently stored under water in the Hanford Site's K Basins, which are located near the Columbia River. Recommendations for a series of aggressive projects to construct and operate systems and facilities to manage the safe removal of K Basins fuel were made in WHC-EP-0830, Hanford Spent Nuclear Fuel Recommended Path Forward,' and its subsequent update, WHC-SD-SNF-SP-005, Hanford Spent Nuclear Fuel Project Integrated Process Strategy for K Basins Fuel. The integrated process strategy recommendations include the following process steps: fuel preparation activities at the K Basins, including removing the fuel elements from their K Basin canisters, separating fuel particulate from fuel elements and fuel fragments greater than 0.6 cm (0.25 in.) in any dimension, removing excess sludge from the fuel and fuel fragments by means of flushing, as necessary, and packaging the fuel into multicanister overpacks; removal of free water by draining and vacuum drying at the Cold Vacuum Drying Facility (CVDF), a new facility in the 100 K Area of the Hanford Site. This report is contains the safety analysis for the Cold Vacuum Drying Facility, Phase 1

  17. Successfully Managing the Experimental Area of a Large Physics Experiment from Civil Engineering to the First Beams

    CERN Document Server

    Butin, F

    2010-01-01

    The role of "Experimental Area Manager" supported by a well organized, charismatic and motivated team is absolutely essential for managing the huge effort needed for a multi-cultural, multi-disciplinary installation of cathedral-size underground caverns housing a billion dollar physics experiment. Between the years 2002 and 2008, we supervised and coordinated the ATLAS work site at LHC, from the end of the civil engineering to the first circulating beams, culminating with 240 workers on the site, 24 hours a day, 7 days a week, with activities taking place simultaneously on the surface, in the 60 m shafts and in the 100 m underground experimental cavern. We depict the activities preparation scheme (including tasks ranging from the installation of 280 ton cranes to super-delicate silicon detectors), the work-site organization method, the safety management that was a top priority throughout the whole project, and the opencommunication strategy that required maintaining permanent public visits. The accumulation o...

  18. Research on Ecological Civilization Evaluation Index System

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    Ecological civilization, which refers to the harmonious development of man and the nature, has the connotation of the ecological material civilization, ecological consciousness civilization, ecological institutional civilization and ecological behavior civilization. The research on ecological civilization evaluation index system is important in that it can provide the guidance for the construction of ecological civilization, and besides it can improve public recognition of the importance of ecological civil...

  19. 7 CFR 1717.604 - Long-range engineering plans and construction work plans.

    Science.gov (United States)

    2010-01-01

    ... construction work plans. (a) All borrowers are required to maintain up-to-date long-range engineering plans and construction work plans (CWPs) in form and substance as set forth in 7 CFR part 1710, subpart F. (b... 7 Agriculture 11 2010-01-01 2010-01-01 false Long-range engineering plans and construction...

  20. Construction of new media and civil society%新媒体与公民社会的构建

    Institute of Scientific and Technical Information of China (English)

    李娜

    2013-01-01

      新媒体正以星星燎原之势迅速发展,现代快节奏的生活使许多人已经抛弃传统媒体,转身投向更加快节奏的新媒体时代。新媒体在构建公民社会中发挥的作用是不容小觑的,一方面新媒体与公民社会间正发生着日益紧密的双向互动联系,另一方面公民在新媒体中的议程设置功能正渐渐显著起来,新媒体也给了公民充分的话语表现权。%The new media are developing rapidly, the fast pace of modern life makes many people abandon the traditional media, and turn toward to accelerate the pace of new media era. The role of new media in constructing the civil society should not be underestimated, on the one hand, new media and citizen society is undergoing more closely linked, on the other hand, the agenda setting function of citizens in the new media is gradually obvious, new media also gives a full citizen discourse right.

  1. 塑料模板在建筑工程中的应用研究%Study on the Application of Plastic Formwork in Civil Engineering

    Institute of Scientific and Technical Information of China (English)

    余少乐; 张其林; 陈海洲; 王国欣; 张晓勇

    2014-01-01

    塑料模板作为一种新型的绿色建筑模板,不仅可以进行多次建筑施工周转,加快工程进度,提高工程质量,降低劳动强度,减少投入,还具有质量小、耐腐蚀性好等优点,作为节能环保产品被广泛推广使用。针对目前国内外塑料模板的使用现状,对塑料模板的性能进行了力学研究,提出了可以改进的几种使用功能,这些功能拓宽了塑料模板在建筑工程中的应用。%As a green construction formwork, the plastic formwork can increase the turnover rate of formwork, speed up construction progress, improve construction quality, lower working strength and reduce input. Moreover, it has the advantages of light quality and good anti-corrosion property. It has been widely popularized and applied in our country as energy saving and environmental protection products . It is introduced in brief that the domestic and foreign employed situation of plastic formwork, and its mechanical performance was investigated and a number of ways in which the use function could be improved were suggested. These new functions would broaden the application of plastic formwork in civil engineering.

  2. Perceptions of Academic Staff towards Accommodating Students with Disabilities in a Civil Engineering Undergraduate Program in a University in South Africa

    Science.gov (United States)

    Mayat, Nafisa; Amosun, Seyi Ladele

    2011-01-01

    This study explored the perceptions of academic staff towards admission of students with disabilities, and their accommodation once accepted into an undergraduate Civil Engineering program in a South African university. Qualitative responses relating to the perceptions of five academic staff were obtained through semi-structured interviews. The…

  3. "At the Head of the Aboriginal Remnant": Cherokee Construction of a "Civilized" Indian Identity during the Lakota Crisis of 1876

    Science.gov (United States)

    Kelton, Paul

    2003-01-01

    In 1876 the bilingual Cherokee diplomat and lawyer William Penn Adair expressed great pride in the level of "civilization" that his nation had achieved. Defining civilization as commercial agriculture, literacy, Christianity, and republican government, Adair believed that his society has reached a sophistication that equaled and in certain areas…

  4. Stabilization of sand dunes with oil residue:Application to civil engineering construction and environmental implications

    Institute of Scientific and Technical Information of China (English)

    Esmail Aflaki; Alborz Hajiannia

    2015-01-01

    The present work ascertains the feasibility of oil residue treatment for stabilizing wind-blown sand dunes. Various combinations of natural collapsible saline from the Jandaq desert of Iran and oil residue from distillation towers of Iranian refineries were tested in laboratory experiments. Stabilized sands were evaluated in terms of geotechnical properties, permeability, and oil retention characteristics (i.e. bonding mechanisms, leaching and migrating behaviour of oil residue from the stabilized sands). Since the presence of oil residue in soils can pose an environmental threat, the optimum retention capacity of the stabilized sands is of critical concern. Relative to sand that was not augmented with oil residue, specimens made of 7% oil residues had the highest compressive strength, significantly higher cohesion and load bearing capacity, and considerably lower permeability. The effect of distilled water, saline water and municipal sewage on prepared specimens were also evaluated.

  5. Civil engineer explains how one insures all right of way issues are found before construction commences

    OpenAIRE

    Nystrom, Lynn A.

    2008-01-01

    When a potential public agency buyer conducts a title search in the state of Texas, as many as six different countries of origin may appear on the deed: the United States, the Confederate States of America, the Republic of Texas, Mexico, France, and Spain.

  6. Study and installation of concrete shielding in the civil engineering of nuclear construction (1960)

    International Nuclear Information System (INIS)

    The object of this report is to give technical information about high density concretes which have become very important for radiation biological shielding. The most generally used heavy aggregates (barytes, ilmenite, ferrophosphorus, limonite, magnetite and iron punching) to make these concretes are investigated from the point of view prospecting and physical and chemical characteristics. At first, a general survey of shielding concretes is made involving the study of components, mixing and placing methods, then, a detailed investigation of some high density concretes: barytes concrete, with incorporation of iron punching or iron shot, ferrophosphorus concrete, ilmenite concrete and magnetite concrete, more particularly with regard to grading and mix proportions and testing process. To put this survey in concrete form, two practical designs are described such as they have been carried out at the Saclay Nuclear Station. Specifications are given for diverse concretes and for making the proton-synchrotron 'Saturne' shielding blocks. (author)

  7. 浅析土建工程设计概算的编制与审查要点%Discussion on the Points of Establishment and Audit of Budgetary Estimate of Civil Engineering

    Institute of Scientific and Technical Information of China (English)

    吴春玲

    2014-01-01

    土建工程的设计概算作为控制建设投资的重要依据,对设计方案是否具有经济性、合理性、可行性进行考核来说有重要意义。本文主要介绍了土建工程设计概算编制的科学依据与方法,指出了设计概算审核中需要注意的重点问题,为保证设计概算质量提出了建设性意见。%Budget for the design of civil engineering, as an important basis for the control of construction investment, is important for the economic, rational, feasible assessment of design scheme. This paper mainly introduces the scientific ba-sis and method of design budget estimate of civil engineering;points out the key problems need to be paid at ention to in the design of budget audit, put ing forward constructive sugges-tions to ensure the quality of design budget estimate.

  8. Knowledge Creation and Innovation in a Civil Engineering Course for the First-Year University Students

    Science.gov (United States)

    Salmisto, Alpo; Nokelainen, Petri

    2015-01-01

    This article examines the application of knowledge creation learning and innovation to higher education in construction. The objectives are to demonstrate the application of the course based on knowledge creation learning to mass teaching and to analyse whether knowledge creation learning improves student motivation and learning. The empirical…

  9. On the Term of 'Working Papers' in Russian law of Civil Engineering

    Directory of Open Access Journals (Sweden)

    Igor N. Polovtsev

    2012-04-01

    Full Text Available The article examines the term of 'working papers' and their role in the construction process. The term of 'working papers' is analysed as applied in laws and other legal acts. The author thinks it necessary for the legislators to give a precise definition of the term

  10. The implementation of a multimedia learning environment for graduate civil engineers

    Directory of Open Access Journals (Sweden)

    Peter Jagodzinski

    1995-12-01

    Full Text Available Underlying our approach to the development of a Multimedia Learning Environment (MLE is the proposition that conventional learning needs analysis, for Computer-Based Learning does not address the richness of delivery possible with MLEs. We propose that knowledge-engineering techniques (from the field of Artificial Intelligence can provide a richer understanding of the domain, thus enabling a better MLE to be produced. The knowledge-engineering approach we have used, outlined in this paper, involved acquiring knowledge from a range of sources, then analysing this knowledge so that individual knowledge items could be categorized according to identified underlying knowledge-representation paradigms which each imply their own, most suitable, presentation style. This knowledge engineering analysis was then used to select an instructional model capable of conveying all the acquired types of knowledge in their paradigmatic styles, and detailed and adaptable enough to be implemented on a computer. The chosen model, the Cognitive Apprenticeship Model (CAM, was explicitly used as the basis for the architecture of the MLE.

  11. 工程教育背景下土木工程专业设计类课程探讨%Study on engineering design curriculums in civil engineering based-on engineering education

    Institute of Scientific and Technical Information of China (English)

    蔡靖; 赵方冉

    2012-01-01

    Based on the engineering education, five reform measures aiming at engineering design curriculums in civil engineering are proposed. They are setting up introductory lectures about engineering design curriculums, core knowledge integration, connection of practice curriculums, abiding by specifications and inspiring innovation and establishment of the curriculum group.%在工程教育背景下,针对土木工程建筑工程方向的工程设计类课程提出5项改革措施:开设专业设计类课程导论讲座,整合核心知识点,集中实践课程承上启下,遵循规范、鼓励创新,成立工程设计类课程小组.

  12. A Brief Discuss on the Application of Calculus in Civil Engineering%浅谈微积分在土木工程上的应用

    Institute of Scientific and Technical Information of China (English)

    蔡颢

    2012-01-01

    In this Article, Based on briefly introduced the basic knowledge ofthe two disciplines of "calculus" and "civil en- gineering", comprehensive analysis of the intrinsic link between the two, and proposed the main application of the calculus in civil engineering subject area.%文章在简要介绍了微积分和土木工程两个学科基本知识的基础上,全面分析了两者的内在联系,并提出了微积分在土木工程学科领域的主要方面应用。

  13. A comparative study of oral health attitudes and behavior using the Hiroshima University-Dental Behavioral Inventory (HU-DBI) between dental and civil engineering students in Colombia.

    Science.gov (United States)

    Jaramillo, Jorge A; Jaramillo, Fredy; Kador, Itzjak; Masuoka, David; Tong, Liyue; Ahn, Chul; Komabayashi, Takashi

    2013-03-01

    The aim of this study was to use the Hiroshima University - Dental Behavioral Inventory (HU-DBI) to compare oral health attitudes and behavior of dental and civil engineering students in Colombia. The HU-DBI's survey consisting of twenty dichotomous responses (agree-disagree) regarding tooth brushing, was completed at University Antonio Narino for the dental students and the University of Cauca for the civil engineering students. The Spanish version of the HU-DBI questionnaire was taken by 182 of 247 dental students and 411 of 762 engineering students. The data was-statistically analyzed by the chi-square test and backward logistic regression. Compared to the engineering students, the dental students were more likely to agree with questions such as "I am bothered by the color of my gums"(OR = 2.2, 95% CI: 1.3-3.7),"I think I can clean my teeth well without using toothpaste" (OR = 3.0, 95% CI: 1.5-5.9), "I have used a dye to see how clean my teeth are" (OR = 2.9, 95% CI: 1.9-4.3), and "I have had my dentist tell me that I brush very well" (OR = 2.0, 95% CI: 1.3-3.1). The dental education curriculum in a dental school compared to a civil engineering school in Colombia indicated that a three-phase curriculum in didactics and clinics increased oral health attitudes and behavior from entry to graduation.

  14. APPLICATION OF MULTICRITERIA METHODS TO PLANNING OF INVESTMENT PROJECTS IN THE FIELD OF CIVIL ENGINEERING

    Directory of Open Access Journals (Sweden)

    Nikša Jajac

    2012-12-01

    Full Text Available In this paper we present a new approach for the planning of an investment project in the field of building construction. The focus is in shaping of the concept that serves to facilitate decision making about investments through providing support to investors’ when they are dealing with a problem - selection of a solution for investment project. The concept is based on the combined use of several different criteria, conventional methods for the evaluation of investment projects and multicriteria methods (PROMETHEE and AHP. Selected criteria encompassed economic, social-administrative, construction-functional and spatial aspects of selection problem. The determining criteria weights process is carried out in two steps. In the first step the AHP method is used to obtain the primary weights. The second step allows interactive involvement of investor in the process of solution selection (an investor-subjective approach to the problem. Presented approach is tested on the planning of nvestment project in Croatia.

  15. Dynamic Comparison and Trend analysis of Southeast Guizhou's Experimental Area of Eco-civilization Construction and the National Eco-efficiency

    OpenAIRE

    Yang, Ting-feng; Zhao, Yong-Xu; Xu, Xiao-Chao

    2012-01-01

    In order to better understand the development level of eco-efficiency in Southeast Guizhou's experimental area of eco-civilization construction, we conduct dynamic comparison research of its eco-efficiency and the national eco-efficiency, using single ratio method based on the ecological footprint model, to grasp the gap between its eco-efficiency and the national eco-efficiency, so that we can take appropriate countermeasures to improve eco-efficiency. The results show that in the period 197...

  16. Dynamic Comparison and Trend analysis of Southeast Guizhou’s Experimental Area of Eco-civilization Construction and the National Eco-efficiency

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    In order to better understand the development level of eco-efficiency in Southeast Guizhou’s experimental area of eco-civilization construction,we conduct dynamic comparison research of its eco-efficiency and the national eco-efficiency,using single ratio method based on the ecological footprint model,to grasp the gap between its eco-efficiency and the national eco-efficiency,so that we can take appropriate countermeasures to improve eco-efficiency. The results show that in the period 1978-2010,the eco-efficiency in Southeast Guizhou’s experimental area of eco-civilization construction was always lower than the national eco-efficiency; the long-time average annual value of its eco-efficiency was less than one half of that of the national eco-efficiency,with the absolute gap of 1 630. 095 yuan /hm 2 ,and the gap tended to widen year by year in the period 1978-2002 ( the gap increased from 276. 551 yuan /hm 2 in 1978 to peak of 3 227. 713 yuan /hm 2 in 2002,with an average annual increase of 118. 047 yuan /hm 2 ,and especially after 1992,the gap was particularly evident,with an average annual increase of 194.771 yuan/hm 2 ) ,but from 2003,the gap between the two tended to decrease. Based on the prediction results of grey system,in the period 2011-2025,the gap between the eco-efficiency in Southeast Guizhou’s experimental area of eco-civilization construction and the national eco-efficiency will gradually narrow,and from 2019, the eco-efficiency in Southeast Guizhou’s experimental area of eco-civilization construction will be higher than the national eco-efficiency.

  17. Redesigning the Student Learning Approach through Personality Types and Pedagogies, A Case Study in an Undergraduate Engineering Course

    Science.gov (United States)

    Fleischmann, Corinna; Nakagawa, Elizabeth; Kelley, Tyler

    2016-01-01

    As the National Science Foundation and engineers throughout the world seek to strengthen the future of the engineering profession, the Civil Engineering (CE) program at the United States Coast Guard Academy embodies this initiative with a student focused approach. One course in particular, Materials for Civil and Construction Engineers (CE…

  18. Educational Horsepower: Engine Design and Construction in the Classroom

    Science.gov (United States)

    Christensen, Brad

    2007-01-01

    Engines, in their many forms and functions, have had a tremendous impact on society and the environment. It is hard for the contemporary student to fathom a world without trains, cars, trucks, powerboats, and airplanes. With the fascination, history, impacts, and importance of engines to modern society, it is only natural that engine technology…

  19. Construction of an Engineer's Notebook Rubric

    Science.gov (United States)

    Kelley, Todd R.

    2014-01-01

    It is evident that there is a need for assessment instruments that measure design and engineering design skills, knowledge, and ways of design thinking. These student assessments must be authentic to engineering design practices and measure key elements of the engineering design process. Kelley (2011) presented a rationale to include…

  20. Monitoring trends in civil engineering and their effect on indoor radon.

    Science.gov (United States)

    Ringer, W

    2014-07-01

    In this paper, the importance of monitoring new building concepts is discussed. The effect of energy-efficient construction technologies on indoor radon is presented in more detail. Comparing the radon levels of about 100 low-energy and passive houses in Austria with radon levels in conventional new houses show that, in energy-efficient new houses, the radon level is about one-third lower than in conventional new houses. Nevertheless, certain features or bad practice may cause high radon levels in energy-efficient new houses. Recommendations to avoid adverse effects were set up. Furthermore, the paper deals with the effect of thermal retrofitting on indoor radon. Results from a Swiss study where 163 dwellings were measured before and after thermal retrofit yield an increase of the radon level of 26% in average. Among the various retrofit measures, replacing windows has the greatest impact on the indoor radon level.

  1. Application of a moment tensor inversion code developed for mining-induced seismicity to fracture monitoring of civil engineering materials

    Science.gov (United States)

    Linzer, Lindsay; Mhamdi, Lassaad; Schumacher, Thomas

    2015-01-01

    A moment tensor inversion (MTI) code originally developed to compute source mechanisms from mining-induced seismicity data is now being used in the laboratory in a civil engineering research environment. Quantitative seismology methods designed for geological environments are being tested with the aim of developing techniques to assess and monitor fracture processes in structural concrete members such as bridge girders. In this paper, we highlight aspects of the MTI_Toolbox programme that make it applicable to performing inversions on acoustic emission (AE) data recorded by networks of uniaxial sensors. The influence of the configuration of a seismic network on the conditioning of the least-squares system and subsequent moment tensor results for a real, 3-D network are compared to a hypothetical 2-D version of the same network. This comparative analysis is undertaken for different cases: for networks consisting entirely of triaxial or uniaxial sensors; for both P and S-waves, and for P-waves only. The aim is to guide the optimal design of sensor configurations where only uniaxial sensors can be installed. Finally, the findings of recent laboratory experiments where the MTI_Toolbox has been applied to a concrete beam test are presented and discussed.

  2. Experimental Investigation of the Effects of Reverse Bending and Straightening Process on Carbon Steel Bars used for Civil Engineering Applications

    Directory of Open Access Journals (Sweden)

    Adewole, K. K.

    2014-01-01

    Full Text Available This paper presents an experimental investigation of the effects of reverse bending and straightening process on the mechanical properties of a typical carbon steel bar used for civil engineering applications. Twenty four specimens each were used for the metallogarphy, microhardness and tensile tests. The investigation revealed that the reverse bending and straightening process has no significant effect on the bars’ through-thickness microstructure and hardness. However, the reverse bending and straightening process reduces the yield load, ultimate load, and displacement at fracture of the bars by 4.27%, 2.58%, and 18.62% respectively. These results highlight the need to take into consideration the effects of the previous loading history of the bars/wires, particularly the reduction in the displacement at fracture and consequently, the ductility of the bars/wires in the design and fitness for purpose assessment of components made from them, since the bars/wires could experience high strain during installation and in service due to overloads.

  3. Academic Training Lecture Regular Programme: How Large-Scale Civil Engineering Projects Realise the Potential of a City

    CERN Multimedia

    2012-01-01

    How Large-Scale Civil Engineering Projects Realise the Potential of a City (1/3), by Bill Hanway (Excecutive Director of Operations, AECOM Europe).   Wednesday, June 6, 2012 from 11:00 to 12:00 (Europe/Zurich) at CERN ( 80-1-001 - Globe 1st Floor ) In this series of three special lectures, leading experts from AECOM would explore the impact of a trio of major projects on a single city. In common with every metropolis, London has run-down districts and infrastructure in need of upgrading. The lectures propose to cover three of the biggest challenges: regenerating run-down areas; reducing congestion and transporting people more efficiently; and improving water and wastewater systems. Each project contributes to a collective public aim - to realise the potential of a growing city, and ensure its healthy, sustainable and competitive future. Lecture 1: Into the lecture series and The London 2012 Olympic Games Most cities share a group of common complex challenges – growing populations, agei...

  4. Genetically engineered multivalent single chain antibody constructs for cancer therapy

    Energy Technology Data Exchange (ETDEWEB)

    Surinder Batra, Ph D

    2006-02-27

    its tumor: normal tissue ratio for improved therapeutic index, we engineered a variety antibody constructs. These constructs were evaluated using novel approaches like special radionuclides, pretargeting and optimization. Due to the smaller size, the engineered antibody molecules should penetrate better throughout a tumor mass, with less dose heterogeneity, than is the case with intact IgG. Multivalent scFvs with an appropriate radionuclide, therefore, hold promising prospects for cancer therapy and clinical imaging in MAb-based radiopharmaceuticals. In addition, the human anti-mouse antibodies (HAMA) responses in patients against antibody-based therapy are usually directed against the immunoglobulin constant regions; however, anti-idiotypic responses can also be detected. The HAMA responses reduce the efficacy of treatment by removing the circulating antibody molecules, fragments, and possibly scFvs by altering the pharmacokinetic properties of the antibody. HAMA responses against divalent IgG, divalent Ig fragments, and possibly multimeric scFvs could cause immune complex formation with hypersensitivity or allergic reactions that could be harmful to patients. The use of small molecules, such as scFvs (monomeric as well as multimeric), with their shorter biological half-lives and the lack of the constant regions and humanized variable (binding regions) performed in our studies should reduce the development of HAMA. The generation of humanized and fully human scFvs should further reduce the development of HAMA. Specific accomplishments on the project are the production of large amounts of recombinant antibodies as they are required in large amounts for cancer diagnosis and therapy. A variety of single-chain Fv (scFv) constructs were engineered for the desired pharmacokinetic properties. Tetrameric and dimeric scFvs showed a two-fold advantage: (1) there was a considerable gain in avidity as compared to smaller fragments, and (2) the biological half-life was more

  5. Genetically engineered multivalent single chain antibody constructs for cancer therapy

    International Nuclear Information System (INIS)

    increase its tumor: normal tissue ratio for improved therapeutic index, we engineered a variety antibody constructs. These constructs were evaluated using novel approaches like special radionuclides, pretargeting and optimization. Due to the smaller size, the engineered antibody molecules should penetrate better throughout a tumor mass, with less dose heterogeneity, than is the case with intact IgG. Multivalent scFvs with an appropriate radionuclide, therefore, hold promising prospects for cancer therapy and clinical imaging in MAb-based radiopharmaceuticals. In addition, the human anti-mouse antibodies (HAMA) responses in patients against antibody-based therapy are usually directed against the immunoglobulin constant regions; however, anti-idiotypic responses can also be detected. The HAMA responses reduce the efficacy of treatment by removing the circulating antibody molecules, fragments, and possibly scFvs by altering the pharmacokinetic properties of the antibody. HAMA responses against divalent IgG, divalent Ig fragments, and possibly multimeric scFvs could cause immune complex formation with hypersensitivity or allergic reactions that could be harmful to patients. The use of small molecules, such as scFvs (monomeric as well as multimeric), with their shorter biological half-lives and the lack of the constant regions and humanized variable (binding regions) performed in our studies should reduce the development of HAMA. The generation of humanized and fully human scFvs should further reduce the development of HAMA. Specific accomplishments on the project are the production of large amounts of recombinant antibodies as they are required in large amounts for cancer diagnosis and therapy. A variety of single-chain Fv (scFv) constructs were engineered for the desired pharmacokinetic properties. Tetrameric and dimeric scFvs showed a two-fold advantage: (1) there was a considerable gain in avidity as compared to smaller fragments, and (2) the biological half-life was more

  6. On how to do construction management communications engineering

    Institute of Scientific and Technical Information of China (English)

    Zhang Zhi

    2014-01-01

    In the communication construction projects, improving the efectivenes of project management is an important part of the quality asurance program. The efectivenes of the communication and construction project management is afected by many factors. Therefore, the discusion of communication construction project management efectivenes is good for improving the quality of projects of great significance. This paper analyzes the characteristics and problems of communication construction projects, reflecting the importance of project management; then discused the factors afecting the efectivenes of project management; finaly targeted to improve the communication of construction project management efectivenes propose specific methods to ensure communication quality of construction projects.

  7. Dynamic investigations of various civil engineering structures due to ambient and mining tremors

    Directory of Open Access Journals (Sweden)

    Kuzniar Krystyna

    2015-01-01

    Full Text Available The first part of the study deals with evaluation of dynamic characteristics of selected typical industrial facilities, such as the extraction steel tower, reinforced concrete tower skips. These structures are located in the coal mine area. The constructions of the test items are varied and complicated, which causes difficulties in the research in situ. In the investigation we used normal and emergency operation of lifting equipment, the effect of wind gusts and rhythmic man swaying. The second part of the study involves the determination of the dynamic characteristics of tailing dam. In this case mining tremors were used as the sources of vibration excitations. By using natural vibration excitation source it was possible to determine the lowest frequency of free vibration of the tailing dam. The third part of the paper focuses on the results of measurements of mine-induced ground vibrations and vibrations of residential buildings of various types. Typical one-family masonry houses as well as 5 and 12 storey reinforced prefabricated buildings were examined. The studies were conducted to determine the transmission of free-field vibrations to the building foundations. According to the significant differences between the simultaneously measured ground and building foundation vibrations, results of experimental tests obtained by means of response spectra are essential for the proper adoption of kinematic loads for dynamic models of these structures. The results of experimental studies were the basis for the verification of dynamic models of investigated structures.

  8. Civil engineering innovations in the Traun river power station project Lambach; Bautechnische Innovationnen beim Traunkraftwerk Lambach

    Energy Technology Data Exchange (ETDEWEB)

    Wicke, M. [Innsbruck Univ. (Austria). Inst. fuer Betonbau; Lindorfer, J. [Oberoesterreichische Kraftwerke AG (Austria); Scheuringer, A. [Planungsgesellschaft m.b.H., Linz (Austria)

    2000-04-01

    Hydroelectric power stations are built for a long term of service and must have a high degree of reliability. The liberalization of the electricity market has increased the economic optimization pressure with a concurrent increase of the quality of the structures. In the construction of Lambach power station these requirements have been met by application of Eurocode Standards in conjunction with the latest findings of concrete technology. Concrete quantities were reduced under consideration of stability requirements. Just outward saving of reinforcing steel was omitted in favour of bearing capacity, serviceability and durability. (orig.) [German] Wasserkraftwerksanlagen werden fuer eine lange Nutzungsdauer gebaut und muessen ein hohes Mass an Zuverlaessigkeit aufweisen. Mit der Liberalisierung des Strommarktes ist der wirtschaftliche Optimierungsdruck bei gleichzeitiger Erhoehung der Bauwerksqualitaet gestiegen. Beim Bau des Kraftwerkes Lambach wurden diese Vorgaben durch Anwendung der Eurocode-Regeln gemeinsam mit den aktuellen Erkenntnissen der Betontechnologie umgesetzt. Betonmassen wurden unter Beruecksichtigung der Standsicherheitserfordernisse eingespart. Auf eine vordergruendige Einsparung von Bewehrungsmassen wurde zugunsten der Tragsicherheit, Gebrauchstauglichkeit und Dauerhaftigkeit verzichtet. (orig.)

  9. Biocalcification using B. pasteurii for strengthening brick masonry civil engineering structures.

    Science.gov (United States)

    Raut, Supriya H; Sarode, D D; Lele, S S

    2014-01-01

    Microbiologically induced calcite precipitation in bricks by bacterium Bacillus pasteurii (NCIM 2477) using a media especially optimized for urease production (OptU) was demonstrated in this study. Effect of biocalcification activity on compressive strength and water absorption capacity of bricks was investigated. Various other parameters such as pH, growth profile, urease activity, urea breakdown and calcite precipitated were monitored during the 28 days curing period. Efficiency of B. pasteurii to form microbial aided calcite precipitate in OptU media resulted into 83.9% increase in strength of the bricks as compared to only 24.9% with standard media, nutrient broth (NB). In addition to significant increase in the compressive strength, bricks treated with B. pasteurii grown in OptU media resulted in 48.9 % reduction in water absorption capacity as compared to control bricks immersed in tap water. Thus it was successfully demonstrated that microbial calcification in optimized media by Bacillus pasteurii has good potential for commercial application to improve the life span of structures constructed with bricks, particularly structures of heritage importance.

  10. “现实的个人”与生态文明建设%"Reality of the Individual"and Ecological Civilization Construction

    Institute of Scientific and Technical Information of China (English)

    刘浏

    2016-01-01

    生态文明不是脱离人的文明,以人为本是生态文明建设理应坚持的原则。马克思关于“现实的个人”的概念,从哲学角度详细阐述了人的本质问题,以此理论为出发点,深化对以人为本原则的认识,从而把握以人为本的生态文明建设的实质,生态文明建设实质就是对于人的本质的重塑,实现“现实的个人”的自然和社会双重属性的协调,彰显劳动自由自觉的特性。立足现实,生态文明建设就是要通过树立绿色消费理念、集体主义观念,通过全面深化改革实现人的本质的重塑。%Ecological civilization is not the one separated from human beings,but people-orientedness is the principle eco-logical civilization construction should adhere to.Marx concept on the"realistic individual"expounded the essence of human na-ture from a philosophical point of view.Based on this concept,deepening the understanding of the principle of people-orienta-tion and grasping the essence of the construction of ecological civilization.The essence of the construction of ecological civiliza-tion is the reconstruction of human nature,the coordination of the nature and the social nature of the"realistic individual",the formation of the characteristics of the free and conscious labor.Based on reality,the construction of ecological civilization is to establish the concept of green consumption,the concept of collectivism,through the comprehensive deepening of reform to a-chieve the essence of the remodeling.

  11. Investigation on the civil engineer society in USA%关于美国土木工程师学会的调研

    Institute of Scientific and Technical Information of China (English)

    中国土木工程学会

    2003-01-01

    @@ 一、ASCE的创立 美国土木工程师学会(the American Society of Civil Engineering,ASCE)是一个代表了123,000多名工程师的专业组织.1852年11月5日,James Laurie(18111875)等12名工程师在Croton Aqueduct建立了美国土木工程师学会的前身--美国土木工程师与建筑师学会(the American Societyof Civil Engineer and Architects),为ASCE奠定了坚实的基础.今天ASCE已经成为世界上最杰出的工程学会之一,在2002年,ASCE将迎来150周年庆典.

  12. Study on Measures of Environmental Audit Promoting Ecological Civilization Construction%环境审计促进生态文明建设的措施研究

    Institute of Scientific and Technical Information of China (English)

    韩德静

    2014-01-01

    加强和完善环境审计是促进生态文明建设,保障我国经济社会可持续发展的重要举措之一。本文以加强环境审计,服务生态文明建设为主旨,在对环境审计所面临的问题进行分析的基础上,从如何开展符合中国国情的环境审计、环境审计队伍建设、机制建设和服务意识等方面,探讨解决问题的对策。%To strengthen and improve the environmental audit is an important measure to promote the construction of ecological civilization and ensure our country's economic and social sustainable development. In this thesis, aiming to strengthen environmental auditing services for the subject construction of ecological civilization, the solutions based on the analysis of problems in environmental audit are discussed in respect of the environmental audit suited to China's national conditions, environmental audit team construction, mechanism construction and service awareness, etc.

  13. The frequency-dependent elements in the code SASSI: A bridge between civil engineers and the soil-structure interaction specialists

    Energy Technology Data Exchange (ETDEWEB)

    Tyapin, Alexander [Atomenergoproject, 7/1 Bakuninskaya Str., Moscow 105005 (Russian Federation)]. E-mail: Atyapin@bvcp.ru

    2007-07-15

    After four decades of the intensive studies of the soil-structure interaction (SSI) effects in the field of the NPP seismic analysis there is a certain gap between the SSI specialists and civil engineers. The results obtained using the advanced SSI codes like SASSI are often rather far from the results obtained using general codes (though match the experimental and field data). The reasons for the discrepancies are not clear because none of the parties can recall the results of the 'other party' and investigate the influence of various factors causing the difference step by step. As a result, civil engineers neither feel the SSI effects, nor control them. The author believes that the SSI specialists should do the first step forward (a) recalling 'viscous' damping in the structures versus the 'material' one and (b) convoluting all the SSI wave effects into the format of 'soil springs and dashpots', more or less clear for civil engineers. The tool for both tasks could be a special finite element with frequency-dependent stiffness developed by the author for the code SASSI. This element can represent both soil and structure in the SSI model and help to split various factors influencing seismic response. In the paper the theory and some practical issues concerning the new element are presented.

  14. Energy cogeneration contributions in the wood quality as civil construction material; Contribuicoes da cogeracao de energia na qualidade da madeira como material de construcao civil

    Energy Technology Data Exchange (ETDEWEB)

    Lima, Carlos Roberto de

    1993-07-01

    This work presents the practicable technical alternative for the improvement of solid wood quality used in the building construction. Through the reality of the solid wood Amazon Region's production and actual generation conception; cogeneration, economy and efficiency on the energy application; the alternative displayed proposes the modification on the lay-out production and production process seeking the best quality obtention of the solid wood; the replace of the petroleum derived energetics by biomass (residues) and the introduction on the production site, the solid wood drying process. The production alternatives proposed can contribute for the solid wood production cost reduction, through the fuel economy, the imperfect number piece reduction and transportation cost production reduction. Contributing significantly for the cost/benefit/quality wood relations, enabling its placement of the consuming market on the Northeast, Southeast, South and Middle west Regions and so on the international market with competitive costs. (author)

  15. Influence of chemical composition of civil construction waste in the cement paste; Influencia da composicao quimica dos residuos da construcao civil a pasta de cimento

    Energy Technology Data Exchange (ETDEWEB)

    Cunha, G.A.; Andrade, A.C.D.; Souza, J.M.M.; Evangelista, A.C.J.; Almeida, V.C., E-mail: valeria@eq.ufrj.b [Universidade Federal do Rio de Janeiro (EQ/UFRJ), RJ (Brazil). Escola de Quimica

    2009-07-01

    The construction and demolition waste when disposed inappropriately might cause serious public health problems. Its reutilization focusing on the development of new products using simple production techniques, assuring a new product life cycle and not damaging the environment is inserted in sustainable concept. The aim of this work was identifying the characteristics of types of waste generated in a residential reform (glassy ceramic and fill dirt leftovers) verifying separately its influence on cement pastes mechanical behavior. Cement pastes + wastes were prepared in 25% and 50% proportions with an approximately 0,35 water/cement relation and, glue time determination, water absorption, resistance to compression and X-ray fluorescence assays were taken. The results indicate that the chemical composition of the waste causes changes in the behavior of cement pastes, reflecting on their resistance to compression. (author)

  16. The role of surveying engineering in less demanding construction works

    OpenAIRE

    Goršič, Janez; Breznikar, Aleš; Savšek, Simona

    2006-01-01

    The role of surveying in the construction of less demanding construction works was defined in more detail with the adoption of the new legislation. The surveyor is present in all stages, i.e. before, during and after the construction of a building, which is actually from the time the land is purchased and until the operating permit is obtained and the building is entered into official records. The paper presents in detail the surveying procedures, from parcelling, sett...

  17. Some Reflections on Contemporary Eco-civilization Construction in China%对当代中国生态文明建设的几点思考

    Institute of Scientific and Technical Information of China (English)

    刘广全

    2013-01-01

    建设生态文明是关系人民福祉、关乎民族未来的长远大计。“生态文明”理念是继中国特色社会主义“物质文明、精神文明、政治文明和社会文明”之后提出的第五个文明,是顺应人类社会文明进程、实现永续发展、传承马克思主义和弘扬华夏优秀传统的必然,也是中国特色社会主义文明体系中不可缺少的重要组成部分。党的十八大和十八届三中全会把生态文明建设提升到与经济、政治、文化、社会四大建设并列的高度,列入“五位一体”建设的总布局,凸显生态文明建设的地位。中国面对资源约束趋紧、环境污染严重、生态系统退化的严峻形势,用不到世界10%的耕地和6%的淡水养活了超过全球21%的人口,用不到30%的世界人均资源占有率创造了约世界10.0%的GDP ,为世界和平发展做出了杰出贡献,要维持中国社会经济快速稳步发展。到2020年实现 GDP比2000年的翻两番,全面建成小康社会,为实现这一目标,必须坚守“一个”目的,实现永续发展;尊重自然规律,推进“两个”转变;坚持“三项”原则,维护公平正义;做好顶层设计,实施“四大”战略;处好“五种”关系,统筹协调发展。最终实现天蓝、地绿、水净生态文明的繁荣富强美丽中国。%The ecological civilization construction in China is the relationship between the welfare of the people, in relation to the nation’s future long-term plan.“Ecological civilization”concept proposed is following the fifth civilization after“material civilization, spiritual civilization, political civilization and civilized society”with Chinese socialism characteristics;is inevitable to follow the progress of human civilization, to achieve sustainable development, to promote the heritage of Marxism, to raise excellent Chinese tradition, and also is indispensable important part of Chinese

  18. 基于界面管理的土建与电梯工程技术配合%Coordination of civil engineering and elevator engineering technology based on interface management

    Institute of Scientific and Technical Information of China (English)

    范新宇

    2011-01-01

    分析了工程各阶段土建工程与电梯安装的技术界面,提出了暂定厂家,土建条件检查,电梯确认图转换为配合条件设计图等解决方法,以期指导实践,确保各技术界面相容,从而实现电梯安装工程顺利进行。%This paper analyzes the civil engineering phases and technological interface of elevator installation, and proposes solutions, such as temporary determining manufacture, civil engineering check, elevator drawing converting into coordinating design drawing etc, with a view to guide practice, to ensure the cooperation of each interface, and to realize smooth elevator installation engineering.

  19. An Analysis of the Dual Dimension of Eco-civilization Construction%生态文明建设的双重维度探析

    Institute of Scientific and Technical Information of China (English)

    张炜丽

    2014-01-01

    The Report of the 18th NCCPC proposes the five-in-one strategy,that is,the combination of eco-civilization construction,economic construction,political construction,cultural construction and social construction.However,the conscious lack of environmental protection impairs the sustainable develop-ment of China.Therefore,it is necessary to popularize the concept of eco-civilization construction,put it into practice,develop eco-protection tech in the mode of production,and establish a system of laws and regulations.%党的十八大报告把生态文明建设提到了前所未有的高度,与经济建设、政治建设、文化建设、社会建设共同构成了“五位一体”的总布局。然而,要真正实现“美丽中国,永续发展”的目标,就必须正视目前我国存在的环境保护意识缺失和狭隘的环境保护意识盛行的现象。因而,在宣传生态文明建设理念的同时,更要把这种理念付诸于实践,通过改变生产方式、研发生态保护技术、建立健全法律法规体系,使生态文明建设的理念和实践有机地结合。

  20. A comparative study of oral health attitudes and behavior using the Hiroshima University - Dental Behavioral Inventory (HU-DBI) between dental and civil engineering students in Colombia

    Science.gov (United States)

    Jaramillo, Jorge A.; Jaramillo, Fredy; Kador, Itzjak; Masuoka, David; Tong, Liyue; Ahn, Chul; Komabayashi, Takashi

    2014-01-01

    The aim of this study was to use the Hiroshima University - Dental Behavioral Inventory (HU-DBI) to compare oral health attitudes and behavior of dental and civil engineering students in Colombia. The HU-DBI's survey consisting of twenty dichotomous responses (agree-disagree) regarding tooth brushing, was completed at University Antonio Narino for the dental students and the University of Cauca for the civil engineering students. The Spanish version of the HU-DBI questionnaire was taken by 182 of 247 dental students and 411 of 762 engineering students. The data was-statistically analyzed by the chi-square test and backward logistic regression. Compared to the engineering students, the dental students were more likely to agree with questions such as “I am bothered by the color of my gums”(OR = 2.2, 95% CI: 1.3-3.7),“I think I can clean my teeth well without using toothpaste” (OR = 3.0, 95% CI: 1.5-5.9), “I have used a dye to see how clean my teeth are” (OR = 2.9, 95% CI: 1.9-4.3), and “I have had my dentist tell me that I brush very well” (OR = 2.0, 95% CI: 1.3-3.1). The dental education curriculum in a dental school compared to a civil engineering school in Colombia indicated that a three-phase curriculum in didactics and clinics increased oral health attitudes and behavior from entry to graduation. PMID:23485597

  1. 高校精神文明建设与社会环境的关系研究%A Research on the Relationships of Spiritual Civilization Construction and Social Environment

    Institute of Scientific and Technical Information of China (English)

    肖曦

    2012-01-01

    Spiritual civilization construction is an important benchmark measure of socialist spiritual civilization, is also an important area of socialist spiritual civifization. This paper describes the relationships of spiritual civilization construction and social environment, and proposed measures for spiritual civilization construction in the new era.%高校精神文明建设是衡量社会主义精神文明的重要标尺,也是社会主义精神文明建设的重要阵地。本文阐述了高校精神文明建设与社会环境的关系,并提出了新时期高校精神文明建设的措施。

  2. On Civility and Civilizations

    Institute of Scientific and Technical Information of China (English)

    DAVID GOSSET

    2010-01-01

    @@ At a time when misunderstand-ings between cultures run rampant, when walls of fear, prejudice and hatred divide the members of the human family, it is urgent to intensify the dialogue between civilizations. Under the new leadership of its Director General lrina Bokova, the United Nations Educational, Scientific and Cultural Organization (UNESCO) declared 2010 as the "Year for the Rapprochement of Cultures." In this context, the concerted reflections and actions of Europe and China can be highly meaningful.

  3. Environmental guidelines for reuse of ash in civil engineering applications - including criteria for Sb and As; Miljoeriktlinjer foer askanvaendning i anlaeggningsbyggande - inklusive haltkriterier foer Sb och As

    Energy Technology Data Exchange (ETDEWEB)

    Bendz, David; Wik, Ola (Swedish Geotechnical Inst., Linkoeping (Sweden)); Jones, Celia; Pettersson, Michael; Elert, Mark (Kemakta, Stockholm (Sweden))

    2009-07-15

    Swedish producers, authorities and users have acknowledged the need for common environmental guidelines for residues. The objective of this project has been to develop a proposal for common environmental guidelines for reuse of ash in civil engineering applications. The project has a narrow risk assessment with application on an strictly nearfield, local perspective and focus on a limited set of substances. Health aspects for construction workers are not covered in the project. The starting point in the risk assessment is the assumption that ashes may be used just like any conventional construction material. Special requirements or regulations regarding precautionary actions in the handling of ashes, regarding the site or surroundings will be avoided. The guiding principle has been the precautionary principle: reuse of ash is acceptable only if it constitute an insignificant risk to health and environment. The calculations are based on defined emission- and exposure scenarios. The concept of insignificant risk imply that the impact in the defined points of compliance does not exceed established health- and environmental criteria. The model address health risks associated with spreading of particles and exposure by dust, oral intake, dermal contact and intake by vegetables or wild grown berries and consumption of ground water. Off-site environmental effects in surface waters and in soil as well as health- and environmental risks in the post use phase are also considered. Exposure by dust is addressed in the same way as in the Swedish Environmental Protection Agency's guidelines for contaminated soil [12]. The guidelines values for exposure by dust, oral intake, dermal contact and intake by vegetables or wild grown berrys are total content, whereas the guidelines for exposure by consumption of ground water or environmental effects in surface waters are based on leaching properties of the ash. The guidelines rely on a conceptual model, defined emissions and

  4. Atlas civil engineering

    CERN Multimedia

    2002-01-01

    The first things lowered to the cavern were not parts of the new detector or parts for the accelerator rather than the machines digging the cavern bigger and lifts that transport stones and other excess material up to the surface. This work was very demanding already.

  5. A Brief Talk on Construction of Chinese Modern Civil Culture%中国现代性公民文化的构建

    Institute of Scientific and Technical Information of China (English)

    全家悦

    2012-01-01

    China' s practice in recent years shows that modern construction of civic culture is an urgent requirement of the construction of socialist political civilization with Chinese characteristics.Citizenship,diversity of cultural forms,ordering of political participation,is the contemporary practice of Chinese citizen culture built on value,form,scale of basic requirements.Citizens ' cultural is a long process of history,strengthening the construction of socialist market economy,making great efforts to train citizens,actively cultivating civil society,combining ideological and political education and civic culture construction,is the choice of constructing contemporary Chinese citizen's culture.%中国近几年的实践表明,现代性公民文化的构建是中国特色社会主义政治文明建设的迫切要求。对象的公民性,文化形式的多元性,政治参与的有序性,是当代中国公民文化构建在价值、形式、实践尺度方面的基本要求。公民文化的培养是一个长期的历史积淀过程,加强社会主义市场经济建设,努力培养公民性,积极培育公民社会,把思想政治教育和公民文化建设相结合,是构建当代中国公民文化的路径选择。

  6. 人民群众是生态文明建设的主体--习近平关于生态文明建设的重要论述之启示%The People are the Main Body of Ecological Civilization Construction:Inspired by Xi Jinping’s Important Speech of Construction of Ecological Civilization

    Institute of Scientific and Technical Information of China (English)

    韩风春

    2015-01-01

    党的十八大以来,习近平总书记就生态文明建设发表了一系列重要讲话,强调人民群众是社会实践的主体,是生态文明建设的驱动力和监督者;在生态文明建设的过程中,需要人民群众的智慧、力量和积极参与;充分发挥人民群众在生态文明建设中的主体作用,必须推动生态民主与生态法治建设,必须运用党的群众路线理论与方法及建立健全人民群众参与生态文明建设的机制,才能加快我国生态文明建设的步伐。%Xi Jinping has delivered series of important speech on ecological civilization since the 18th Na-tional Congress of CPC,which emphasizes the people are the main body of social practice,driving force and supervisors of ecological civilization construction.The ecological civilization construction calls for their intelligence,energy and participation.It is requested to exercise the role of main body,promote construc-tion of ecological democracy and rule of law,carry out the theories and practice of mass line and establish a sound mechanism of the people involvement so as to speed up the ecological civilization construction in China.

  7. Discursive Constructions of Design and Implications for Engineering Education

    DEFF Research Database (Denmark)

    Petersen, Rikke Premer

    on the discourses discussed, three key elements of design are highlighted: the materiality, the social, and the reflective sides of designing. All of these elements are represented in the issues of communication, which can be a central focus area when taking a designerly turn in engineering practice.......Recognition of design discourses at play in professional practice is key when discussing ways to reintroduce designerly ways in engineering education. This paper outlines three design discourses discussed in literature and mirroring contemporary design practice: Viewing ‘design as art’ upholds...

  8. Ecological Civilization Construction of Beautiful China Dream%美丽中国的生态文明建设探析

    Institute of Scientific and Technical Information of China (English)

    张硕; 高九江

    2014-01-01

    现实中国的环境生态状况面临较大挑战,而美丽中国的建设给中国人民以极大的动力和希望。美丽中国梦是建设中国特色社会主义的重要组成部分,是马克思主义中国化的最新成果的主要内容;生态马克思主义是一种以马克思主义自然观为基础探索生态危机形成的社会制度根源,探求既能解决生态危机又能走向社会主义道路的社会思潮。要实现“美丽中国”目标,首先须建设社会主义生态文明。马克思主义中国化应当关注马克思恩格斯生态文明思想的中国化问题,他们的生态文明思想博大精深,对中国的生态文明建设很有指导意义,另外中国传统文化中的自然生态意识对现代社会的生态文明建设也有启迪作用。%China's ecological state of the environment faces great challenges ,and building a beautiful China gives the Chinese people great power and hope .Beautiful China dream is an important part of constructing socialism with Chinese characteristics , and it's the main content of the latest achievements of the Sinicism of Marxism ;Ecological Marxism is the essence of social sys-tem based on Marxist natural view ,searching for ecological crisis and the way to solve the crisis and at the same time sticking to the socialist road .To build the "beautiful China",we must first build a socialist ecological civilization .Sinicism of Marxism must focus on Marx and Engels ecological civilization thought ,which is broad and profound ,and instructive to the construction of ecological civilization in China .In addition ,the natural ecological consciousness in China traditional culture also is inspiring to modern society's ecological civilization construction .

  9. AUTOMOTIVE DIESEL MAINTENANCE 1. UNIT XXIX, REVIEWING THE CONSTRUCTION OF ENGINE COMPONENTS.

    Science.gov (United States)

    Human Engineering Inst., Cleveland, OH.

    THIS MODULE OF A 30-MODULE COURSE IS DESIGNED TO PROVIDE A REVIEW OF THE CONSTRUCTION AND OPERATION OF DIESEL ENGINE COMPONENTS. TOPICS ARE STATIONARY PARTS, ENGINE MOVING PARTS, PISTON RINGS, AND CONNECTING RODS AND PISTON PINS. THE MODULE CONSISTS OF AN INSTRUCTOR'S GUIDE, TRANSPARENCIES, A LIST OF SUGGESTED SUPPLEMENTARY MATERIALS, AND TRAINEE…

  10. Improving Construction Process through Integration and Concurrent Engineering

    OpenAIRE

    Malik Khalfan; Naveed Raja

    2012-01-01

    In an increasingly competitive business environment, improvedtime-to-market, reduced production cost, quality of the productand customer involvement are rapidly becoming the key successfactors for any product development process. Consequently, mostorganisations are moving towards the adoption of latest technologyand new management concepts and philosophies such as totalquality management and concurrent engineering (CE) to bringimprovement in their product development process. This paperdiscus...

  11. Problem-Based Project-Oriented Learning: Educating and evaluating for new disciplines emerging in the interplay between the professions of civil engineering and architecture

    DEFF Research Database (Denmark)

    Mullins, Michael

    2006-01-01

    advantages in a search for solutions of which integrate these approaches. The Department of Architecture and Design (A&D) at Aalborg University has been intiated with the explicit aim to educate for new disciplines emerging in the interplay between the professions of civil engineering and architecture......University curricula are traditionally based on specialised discipline-specific subjects, which like engineering and architecture approach solutions to design problems with methods suited to their specific view of the issues. Problem-based learning models (PBL) offer a number of potential......, and uses PBL and project-oriented models for its educational form. There is a distinct difference between engineering and architecture in their evolutionary backgrounds and their varying degree of emphasis on natural science. Both present different forms of problem solving that appeal to different learning...

  12. China Aluminum International Engineering Corporation Limited Signed Strategic Cooperation Agreement With Changsha Urban Construction

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    On September 9,China Aluminum International Engineering Corporation Limited(China Aluminum International)and Changsha Urban Public Utility Construction&Development; Company("Changsha Urban Construction")formally signed strategic cooperation agreement in Beijing.Fan Yanbin,Secretary and Director of Changsha Municipal

  13. A Private Cloud Environment for Teaching Search Engine Construction

    OpenAIRE

    Eisuke, Ito; Brendan, Flanagan; Chengjiu, Yin; Tetsuya, Nakatoh; Tetsuya, Nakato; Sachio, Hirokawa

    2013-01-01

    Kyushu University installed a private cloud system, named “campus cloud system”, using VCL and CloudStack. For a graduate school exercise course on web search engine, the authors prepared a virtual machine on VCL, which had apache web server and GETA indexer preinstalled. This paper introduces an outline of the cloud system, the exercise, and also reports advantages and disadvantages of cloud based education.

  14. Ethics review of the civil ecological personality missing and the construction of civil ecological personality%公民生态人格缺失的伦理审视与建构

    Institute of Scientific and Technical Information of China (English)

    高雁

    2015-01-01

    生态人格作为生态文明时代公民应该呈现出的伦理主体形态和生存范式,是对工业社会人与自然关系扭曲观念的反思,也是对生态危机下人类可持续生存发展困境以及传统人格精神危机的觉解与回应。当前公民生态人格缺失主要表现为:自然信仰的虚无、生命意义感迷失、受物欲的支配和生态利己主义倾向等方面。公民生态人格的建构需要从融合人与自然裂隙的角度实现价值观、伦理情感、生活方式和责任承担等方面的整体转向。%Ecological personality is the main ethical form and life paradigm of citizens which supposes to show in the era of ecological civilization .It is the reflection of the distorted concept on the relationship between man and nature in industrial society and also the awareness and response on the ecological crisis of sustainable survival and development dilemma and spiritual crisis of the traditional personality .The civil ecological personality deficiencies are shown as follows: natural faith nihility , life sense lost, material control and eco-egoism.The construction of ecological personality of citizens needs people to make adjustments and changes in the values , ethical emotion , life style and responsibility undertaken from the perspective of the integration of human and nature .

  15. Web application to access U.S. Army Corps of Engineers Civil Works and Restoration Projects information for the Rio Grande Basin, southern Colorado, New Mexico, and Texas

    Science.gov (United States)

    Archuleta, Christy-Ann M.; Eames, Deanna R.

    2009-01-01

    The Rio Grande Civil Works and Restoration Projects Web Application, developed by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers (USACE) Albuquerque District, is designed to provide publicly available information through the Internet about civil works and restoration projects in the Rio Grande Basin. Since 1942, USACE Albuquerque District responsibilities have included building facilities for the U.S. Army and U.S. Air Force, providing flood protection, supplying water for power and public recreation, participating in fire remediation, protecting and restoring wetlands and other natural resources, and supporting other government agencies with engineering, contracting, and project management services. In the process of conducting this vast array of engineering work, the need arose for easily tracking the locations of and providing information about projects to stakeholders and the public. This fact sheet introduces a Web application developed to enable users to visualize locations and search for information about USACE (and some other Federal, State, and local) projects in the Rio Grande Basin in southern Colorado, New Mexico, and Texas.

  16. Web Application to Access U.S. Army Corps of Engineers Civil Works and Restoration Projects Information for the Rio Grande Basin, Southern Colorado, New Mexico, and Texas

    Science.gov (United States)

    Archuleta, Christy-Ann M.; Eames, Deanna R.

    2009-01-01

    The Rio Grande Civil Works and Restoration Projects Web Application, developed by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers (USACE) Albuquerque District, is designed to provide publicly available information through the Internet about civil works and restoration projects in the Rio Grande Basin. Since 1942, USACE Albuquerque District responsibilities have included building facilities for the U.S. Army and U.S. Air Force, providing flood protection, supplying water for power and public recreation, participating in fire remediation, protecting and restoring wetlands and other natural resources, and supporting other government agencies with engineering, contracting, and project management services. In the process of conducting this vast array of engineering work, the need arose for easily tracking the locations of and providing information about projects to stakeholders and the public. This fact sheet introduces a Web application developed to enable users to visualize locations and search for information about USACE (and some other Federal, State, and local) projects in the Rio Grande Basin in southern Colorado, New Mexico, and Texas.

  17. 谈建筑工程造价管理%Discussion on construction engineering cost management

    Institute of Scientific and Technical Information of China (English)

    屈瑞花

    2015-01-01

    This paper introduced the necessity of whole process control of construction enterprise engineering cost, elaborated the cost control and management of engineering cost in bidding stage, signing construction contract stage, construction stage, completion settlement stage, pointed out the role of engineering cost to engineering cost control.%介绍了施工企业工程造价全过程控制的必要性,阐述了工程造价在投标报价阶段、签订施工合同阶段、工程施工阶段、竣工结算阶段的造价控制管理,指出了工程造价对控制工程成本的作用。

  18. Constructing an Efficient Self-Tuning Aircraft Engine Model for Control and Health Management Applications

    Science.gov (United States)

    Armstrong, Jeffrey B.; Simon, Donald L.

    2012-01-01

    Self-tuning aircraft engine models can be applied for control and health management applications. The self-tuning feature of these models minimizes the mismatch between any given engine and the underlying engineering model describing an engine family. This paper provides details of the construction of a self-tuning engine model centered on a piecewise linear Kalman filter design. Starting from a nonlinear transient aerothermal model, a piecewise linear representation is first extracted. The linearization procedure creates a database of trim vectors and state-space matrices that are subsequently scheduled for interpolation based on engine operating point. A series of steady-state Kalman gains can next be constructed from a reduced-order form of the piecewise linear model. Reduction of the piecewise linear model to an observable dimension with respect to available sensed engine measurements can be achieved using either a subset or an optimal linear combination of "health" parameters, which describe engine performance. The resulting piecewise linear Kalman filter is then implemented for faster-than-real-time processing of sensed engine measurements, generating outputs appropriate for trending engine performance, estimating both measured and unmeasured parameters for control purposes, and performing on-board gas-path fault diagnostics. Computational efficiency is achieved by designing multidimensional interpolation algorithms that exploit the shared scheduling of multiple trim vectors and system matrices. An example application illustrates the accuracy of a self-tuning piecewise linear Kalman filter model when applied to a nonlinear turbofan engine simulation. Additional discussions focus on the issue of transient response accuracy and the advantages of a piecewise linear Kalman filter in the context of validation and verification. The techniques described provide a framework for constructing efficient self-tuning aircraft engine models from complex nonlinear

  19. 论我国生态文明建设的政治制度优势%On the Advantage of Political System for the Ecological Civilization Construction of Our Country

    Institute of Scientific and Technical Information of China (English)

    胡长生; 王雄青

    2012-01-01

    The Marxist theory of ecological repudiation against capitalism discloses that socialism has an advantage in political system for promoting ecological civilization construction,and this advantage is systematic and all-around.The political advantage of our country in ecological civilization construction is mainly embodied in the following aspects:the socialist system provides the institutional precondition for ecological civilization construction,the governance of the CPC provides the political guarantee for ecological civilization construction,and the socialist moral system provides the moral basis for ecological civilization construction.%马克思主义的生态资本主义制度批判理论昭示了社会主义对于推进生态文明建设的政治制度优势,且这种制度优势是系统而全面的。我国生态文明建设的政治制度优势主要体现在,社会主义制度为生态文明建设提供了制度前提,中国共产党执政为生态文明建设提供了政治保障,社会主义道德体系为生态文明建设提供了道德基础。

  20. Engineering of forged products of microalloyed constructional steels

    OpenAIRE

    J. Adamczyk; M. Opiela

    2006-01-01

    Purpose: Effect of the thermo-mechanical treatment conditions on the structure and mechanical properties of the forged elements of constructional C-Mn steels with Ti, V, B and N microadditions.Design/methodology/approach: Metallography, electron microscopy, tensile test, hardness measurements, hardenability calculations, Charpy-V tests have been used.Findings: The thermo-mechanical treatment allows to obtain the fine-grained austenite structure during hot plastic deformation, and gives forged...

  1. Dual-Scale Polymeric Constructs as Scaffolds for Tissue Engineering

    Directory of Open Access Journals (Sweden)

    Federica Chiellini

    2011-03-01

    Full Text Available This research activity was aimed at the development of dual-scale scaffolds consisting of three-dimensional constructs of aligned poly(ε-caprolactone (PCL microfilaments and electrospun poly(lactic-co-glycolic acid (PLGA fibers. PCL constructs composed by layers of parallel microsized filaments (0/90° lay-down pattern, with a diameter of around 365 μm and interfilament distance of around 191 μm, were produced using a melt extrusion-based additive manufacturing technique. PLGA electrospun fibers with a diameter of around 1 μm were collected on top of the PCL constructs with different thicknesses, showing a certain degree of alignment. Cell culture experiments employing the MC3T3 murine preosteoblast cell line showed good cell viability and adhesion on the dual-scale scaffolds. In particular, the influence of electrospun fibers on cell morphology and behavior was evident, as well as in creating a structural bridging for cell colonization in the interfilament gap.

  2. Methodology discourses as boundary work in the construction of engineering education.

    Science.gov (United States)

    Beddoes, Kacey

    2014-04-01

    Engineering education research is a new field that emerged in the social sciences over the past 10 years. This analysis of engineering education research demonstrates that methodology discourses have played a central role in the construction and development of the field of engineering education, and that they have done so primarily through boundary work. This article thus contributes to science and technology studies literature by examining the role of methodology discourses in an emerging social science field. I begin with an overview of engineering education research before situating the case within relevant bodies of literature on methodology discourses and boundary work. I then identify two methodology discourses--rigor and methodological diversity--and discuss how they contribute to the construction and development of engineering education research. The article concludes with a discussion of how the findings relate to prior research on methodology discourses and boundary work and implications for future research.

  3. Research on Geographic Information System Teaching in Civil Engineering%土木工程专业地理信息系统课程教学研究

    Institute of Scientific and Technical Information of China (English)

    赵健赟

    2013-01-01

    Based on the introduction of GIS, this paper analyzes the necessity of opening GIS course to civil engineering personnel training, and discusses contents of the courses combining with specialties of the modern civil engineering. The paper researches the theory didactical methods of GIS, and indicates using various kinds of teaching methods and modem education technologies to improve the teaching effect, in allusion to the characteristics of civil engineering students'knowledge structures. The paper discusses the signif icance of GIS experiment teaching, and puts forward that different hierarchical experiment items and approach should be used to im prove students'application abilities combining with the applications teaching methods. Finally, the paper analyzes the evaluation meth ods for the purpose of emphasizing the application and usual study, and the effective ways to ensure the GIS teaching quality of civil engineering.%在介绍GIS在土木工程应用的基础上,结合现代土木工程特点,分析了在土木工程人才培养中开设GIS课程的必要性,探讨了其教学内容.针对土木工程专业学生知识面的特点研究了GIS理论教学的方法,提出综合应用各种教学方法和现代教育技术,以改善教学效果.阐述了GIS实验教学的重要性,结合应用型GIS教学方法,提出了不同层次的实验项目和提高学生应用能力的途径.论述了以突出应用能力培养和平时学习效果为目的的考核方法,研究了针对土木专业GIS教学质量保障的有效途径.

  4. Imagerie par résonance magnétique appliquée aux matériaux du génie civil Magnetic Resonance Imaging Applied to Civil Engineering Materials

    OpenAIRE

    Coussot P.

    2006-01-01

    Un imageur par résonance magnétique dédié aux matériaux du génie civil et de la construction est actuellement en cours d'acquisition par le LCPC (Laboratoire Central des Ponts et Chaussées). Il sera géré par le LMSGC à Champs-sur-Marne et installé dans les locaux de l'IFI (Institut francilien d'Ingénierie). De nombreuses collaborations avec des laboratoires et des entreprises sont envisagées et certaines déjà mises en place. D'un point de vue général, les recherches concerneront les transfert...

  5. Application of Mixed-Language Programming of FORTRAN and C# in Calculating of Civil Engineering%利用混编技术对土木工程计算程序的改造

    Institute of Scientific and Technical Information of China (English)

    周涛; 汪金辉; 郭向荣

    2009-01-01

    Considering the characteristics of FORTRAN、C# language and OpenGL graphic library individually,this paper brings forward the concepts and methods of how to combining FORTRAN、C# and OpenGL together in reconstructing program when developing the interactive software of calculating of civil engineering.And this method is based on the technology of DLL (Dynamic Link Library).Through an example,in which the source code of FORTRAN was slightly transformed,this paper illustrates the process of the exploitation of the method.Examples prove this hybrid technology can greatly exert the advantages of all languages,and also make the classical source code of FORTRAN in existence refresh.In this way,not only the workload of the developing of the calculating program about civil engineering can be cut down,but also the efficiency of the Constructing the Software of civil engineering can be improved.%从FORTRAN、C#语言和OpenGL图形库各自的特点出发,提出了将三种技术通过动态链接库DLL(Dynamic Link Library)技术混合在一起,实现对传统土木工程计算程序的交互式界面化改造.并通过改造现有的GSAP(中南大学郭向荣教授开发的桥梁结构分析专用程序)计算程序FORTRAN源代码的实例阐述了这种开发方法的过程.实例证明,利用这种混合编程的技术可以充分发挥各种语言或标准的优势,使得现有的经典FORTRAN计算程序源码可以焕发出新的活力,既可以减轻土木工程计算程序的开发的工作量,又能够大大提高土木工程专业软件开发的效率.

  6. 企业生态文明建设的伦理视阈%The Ecological Civilization Construction of Enterprise from the Ethical View

    Institute of Scientific and Technical Information of China (English)

    李长亮

    2015-01-01

    The construction of ecological civilization is to build environment friendly society on the basis of resource environmental bearing capacity, taking natural law as the criterion and sustainable development as the goal of resource saving. Enterprise, as the main polluters of the environment, the main consumption of resources and ecological destroyer, should bear the responsibility of the construction of ecological civilization. From the ethical perspective of enterprise ecology civilization construction, companies are required to establish a correct concept of production and operation philosophy and ecological ethics, in order to realize economic benefit, social benefit and ecological benefit optimization. It should adhere to the principle of ecological friendly, environment-friendly, and resource-conserving society, and to develop circular economy and clean production, to save resources, to protect the environment, and to set up the sustainable development.%建设生态文明,就是要建设以资源环境承载力为基础、以自然规律为准则、以可持续发展为目标的资源节约型、环境友好型社会。企业作为环境的主要污染者、资源的主要消耗者和生态的主要破坏者,理应承担起生态文明建设的责任。从伦理的视角审视企业生态文明建设,要求企业树立科学的生产经营理念和生态伦理观念,注重生态效益;坚持生态友好原则,建设环境友好型、资源节约型社会;发展循环经济,推行清洁生产;节约资源,保护环境,树立可持续发展观。

  7. Engineering of forged products of microalloyed constructional steels

    Directory of Open Access Journals (Sweden)

    J. Adamczyk

    2006-02-01

    Full Text Available Purpose: Effect of the thermo-mechanical treatment conditions on the structure and mechanical properties of the forged elements of constructional C-Mn steels with Ti, V, B and N microadditions.Design/methodology/approach: Metallography, electron microscopy, tensile test, hardness measurements, hardenability calculations, Charpy-V tests have been used.Findings: The thermo-mechanical treatment allows to obtain the fine-grained austenite structure during hot plastic deformation, and gives forged elements obtaining: yield point Rp0,2 over 690 MPa, UTS over 770 MPa, hardness 220 up to 250 HB and breaking energy KV over 180J after high tempering.Research limitations/implications: It is predicted TEM investigations on structure of the forged elements after thermo-mechanical treatment.Practical implications: Investigations carried out showed full usability of micro-alloyed steels for producing forged machine parts with the high strength and cracking resistance, using the energy-saving thermo-mechanical treatment method.Originality/value: Production conditions of energy-saving thermo-mechanical treatment of forged elements of HSLA constructional steels – with the diversified hardenability, were presented.

  8. Construction of an environmental safe Bacillus thuringiensis engineered strain against Coleoptera.

    Science.gov (United States)

    Yu, Yajun; Yuan, Yihui; Gao, Meiying

    2016-05-01

    Cloning of new toxic genes from Bacillus thuringiensis (Bt) and construction of Bt engineered strains are two key strategies for bio-control of coleopteran pests in agriculture and forestry. In this study, we cloned a new cry3Aa-type gene, cry3Aa8, from wild Bt strain YC-03 against coleopteran, and constructed a Bt engineered strain, ACE-38, containing insecticidal protein-encoding gene cry3Aa8. The engineered strain, with almost four times of Cry3Aa yield compared with strain YC-03, was an antibiotic marker-free strain. Though no selective pressure was presented in the medium, cry3Aa8 in the engineered strain ACE-38 remained stable. The yield of Cry3Aa by strain ACE-38 reached 2.09 mg/ml in the optimized fermentation medium. The activity of strain ACE-38 against Plagiodera versicolora was tested, and the LC50 of ACE-38 cultures in the optimized fermentation medium was 1.13 μl/ml. Strain ACE-38 is a non-antibiotic Bt engineered strain with high Chrysomelidae toxicity and exhibits good fermentation property. The modified indigenous site-specific recombination system constructed in this study might be useful for the construction of Bt engineered strains containing genes that cannot be expressed in the indigenous site-specific recombination system using plasmid pBMB1205R. PMID:26767987

  9. Construction of an environmental safe Bacillus thuringiensis engineered strain against Coleoptera.

    Science.gov (United States)

    Yu, Yajun; Yuan, Yihui; Gao, Meiying

    2016-05-01

    Cloning of new toxic genes from Bacillus thuringiensis (Bt) and construction of Bt engineered strains are two key strategies for bio-control of coleopteran pests in agriculture and forestry. In this study, we cloned a new cry3Aa-type gene, cry3Aa8, from wild Bt strain YC-03 against coleopteran, and constructed a Bt engineered strain, ACE-38, containing insecticidal protein-encoding gene cry3Aa8. The engineered strain, with almost four times of Cry3Aa yield compared with strain YC-03, was an antibiotic marker-free strain. Though no selective pressure was presented in the medium, cry3Aa8 in the engineered strain ACE-38 remained stable. The yield of Cry3Aa by strain ACE-38 reached 2.09 mg/ml in the optimized fermentation medium. The activity of strain ACE-38 against Plagiodera versicolora was tested, and the LC50 of ACE-38 cultures in the optimized fermentation medium was 1.13 μl/ml. Strain ACE-38 is a non-antibiotic Bt engineered strain with high Chrysomelidae toxicity and exhibits good fermentation property. The modified indigenous site-specific recombination system constructed in this study might be useful for the construction of Bt engineered strains containing genes that cannot be expressed in the indigenous site-specific recombination system using plasmid pBMB1205R.

  10. A cost-minimization analysis of tissue-engineered constructs for corneal endothelial transplantation.

    Directory of Open Access Journals (Sweden)

    Tien-En Tan

    Full Text Available Corneal endothelial transplantation or endothelial keratoplasty has become the preferred choice of transplantation for patients with corneal blindness due to endothelial dysfunction. Currently, there is a worldwide shortage of transplantable tissue, and demand is expected to increase further with aging populations. Tissue-engineered alternatives are being developed, and are likely to be available soon. However, the cost of these constructs may impair their widespread use. A cost-minimization analysis comparing tissue-engineered constructs to donor tissue procured from eye banks for endothelial keratoplasty was performed. Both initial investment costs and recurring costs were considered in the analysis to arrive at a final tissue cost per transplant. The clinical outcomes of endothelial keratoplasty with tissue-engineered constructs and with donor tissue procured from eye banks were assumed to be equivalent. One-way and probabilistic sensitivity analyses were performed to simulate various possible scenarios, and to determine the robustness of the results. A tissue engineering strategy was cheaper in both investment cost and recurring cost. Tissue-engineered constructs for endothelial keratoplasty could be produced at a cost of US$880 per transplant. In contrast, utilizing donor tissue procured from eye banks for endothelial keratoplasty required US$3,710 per transplant. Sensitivity analyses performed further support the results of this cost-minimization analysis across a wide range of possible scenarios. The use of tissue-engineered constructs for endothelial keratoplasty could potentially increase the supply of transplantable tissue and bring the costs of corneal endothelial transplantation down, making this intervention accessible to a larger group of patients. Tissue-engineering strategies for corneal epithelial constructs or other tissue types, such as pancreatic islet cells, should also be subject to similar pharmacoeconomic analyses.

  11. 我国公务员职业伦理构建的路径分析%An Analysis of Professional Ethical Construction of Civil Servants in China

    Institute of Scientific and Technical Information of China (English)

    殷宁

    2015-01-01

    文章基于职业伦理的概念,分析了目前我国公务员职业伦理失范的表现,从深层和具体两个角度分别阐释了其失范产生的原因,并在此基础上为我国公务员职业伦理的构建提出了三种路径:一是政治性的分权与自治;二是结构性的主观责任和客观责任的平衡;三是基于反思装置和伦理基因的制度性设计。%In this paper, based on the concept of professional ethics, we analyzed professional ethics anomie of civil servants in China at present and explained the cause of the anomie from deep and specific angles. Therefore, we put forward three paths to the construction of professional ethics of civil servants of our country. The first is the decentralization and autonomy of politics; the second is the balance of subjective and objective responsibility in structure; the third is institutional design with the reflection of structure and occupational habits.

  12. Analysis of the Soft Soil Foundation Construction Technology in Civil Construction%对房建中软土地基施工技术的分析

    Institute of Scientific and Technical Information of China (English)

    汪勇军

    2014-01-01

    随着我国经济水平的全面提升,房屋建筑工程的管理水平也相对提高了。本文主要结合房屋建筑工程施工的需要,对房屋建筑施工工程中加强软土地基处理的施工技术进行了分析。%With the comprehensive level of Chinese economy, the management level housing construction project is relatively improved. This article mainly combines with the needs of the housing construction project construction and analyzes the housing construction project of strengthening the construction of soft soil foundation treatment technology.

  13. Management for Construction Materials and Control of Construction Waste in Construction Industry: A Review

    Directory of Open Access Journals (Sweden)

    A. A. Gulghane

    2015-04-01

    Full Text Available In recent treads a wide range of building materials is available for the construction of civil engineering structures. The total cost of materials may be up to 60% or more of the total cost incurred in construction project dependent upon the type of project. Effective construction materials management is a key to success for a construction project. Construction waste is another serious problem in construction industry. A large and various types of construction waste with different characteristics are created at all the stages of construction. Construction industries have a larger part in contributing environmental problems. The economic and environmental benefits must be gained from construction waste minimization. This paper presents a review on systematically investigation of the management of construction materials and construction waste, material management techniques, control of construction waste and existing situation of construction management and construction waste in the industry.

  14. 生态文明建设主体因素分析--基于公共选择视角%Analysis on the main factors of ecological civilization construction from the perspective of public choice theory

    Institute of Scientific and Technical Information of China (English)

    刘芳

    2015-01-01

    公共选择理论使用分析经济活动的方法来分析政治过程为分析生态文明建设主体因素提供了新的视角。政府、企业、个人是生态文明的建设中最主要三个主体。文章以公共选择理论相关观点为理论支柱,认为在生态文明建设中,政府应充分发挥其主导作用,完善政府生态职能,避免“政府失灵”;企业应提高生态文明意识,落实文明生态责任,履行生态文明义务;公众应提高主人翁意识,积极参与生态文明建设,避免“搭便车”行为。%The theory of public choice uses the way of analyzing economic activities to analysis of the political process, which provide a new perspective for the analysis of main bodys of ecological civilization construction. Government, enterprise, individual are the most important body of the construction of ecological civilization. This article chooses the public choice as its theory, and think that the government should play its leading role in ecological civilization construction in order to avoid “government failure”; The enterprises should improve the consciousness of ecological civilization, carry out the responsibility of civilization ecological, fulfill the obligations of ecological civilization; The public should enhance the sense of ownership, participate in the the construction of ecological civilization, avoid the "free rider" behavior.

  15. The Development and Use of Economic Value concerning Urban Landscape Plants in Shijiazhuang City in the Context of Ecological Civilization Construction

    Institute of Scientific and Technical Information of China (English)

    Chenxia; HAN

    2015-01-01

    Many landscape plants have edible,medicinal,forage,industrial and other economic value,which has not been fully exploited.Effective development and utilization of the economic value of city landscape plant,conforms to the need of sustainable development and economical society,which is of great significance to the development of urban ecological civilization construction. In this paper,the landscape plant species in Shijiazhuang City and their economic value are investigated and analyzed,the principle and scheme of economic development and utilization of landscape plants in Shijiazhuang city value are put forward,which provides the reference for full and sustainable utilization of landscape plant resources in Shijiazhuang City.

  16. Study on protective facility information price management of civil air defense engineering%人防工程防护设备信息价格管理研究

    Institute of Scientific and Technical Information of China (English)

    张桂萍

    2015-01-01

    论述了人防工程防护设备价格信息管理存在的主要问题,对产生各种问题的原因进行了分析,提出了进一步开放市场、建立全国性的人防工程防护设备信息价网络系统、加强质量监督等对策,以维护防护设备市场的稳定性。%The paper discusses protective facility information price management problems of civil air defense engineering,analyzes various cau-ses,puts forward a series of countermeasures,such as opening market,establishing national civil air defense engineering protecting facility infor-mation price network system,and strengthening quality supervision and so on,with a view to maintain the stability of protective facility market.

  17. The influences of scientific information on the growing in opinion for high level waste repository. Focusing on education in civil engineering course

    International Nuclear Information System (INIS)

    In this research, survey of awareness and attitude to high level radioactive waste (HLW) disposal on 36 students of a postgraduate course was conducted. They have been studying civil and rock engineering, so they belong to 'the Group' that acquires high education, culture and faculty to understand the science in geological disposal of HLW. First of all the awareness of danger or safety to HLW disposal was examined. Some 23% regard HLW disposal as safe, on the contrary 60% feel danger. This is similar to the awareness of the average public. And some 72% think that HLW should be disposal, but only 6% agree the repository in their town. It shows that the Group of high education has a tendency of calmly understand the necessity of disposal, but they also have a nature so-called 'not in my back yard (NIMBY)'. After that, the students were divided in two groups. Then, one group received information from the promoter, and another received information from opponents. The result of second questionnaire shows that the awareness of danger is affected strongly by given information even in this Group, but they become thoughtful and prudent in their opinion and decision-making as increasing information. Finally in this paper it is studied that 'what is the role of education of civil engineering?' and 'what is key issue in R and D of HLW disposal?' considering Public Acceptance. (author)

  18. Estudo da influência de cimentos na fluência em concretos para a construção civil Study of the influence of cements on creep in concretes used in civil construction

    Directory of Open Access Journals (Sweden)

    M. A. Coimbra

    2006-03-01

    Full Text Available O objetivo deste trabalho consistiu em um estudo da influência de dois tipos diferentes de cimento Portland na propriedade fluência em concretos, em equipamento específico, uma propriedade viscoelástica que se origina na pasta endurecida de cimento e presume-se que esteja relacionada principalmente à remoção da água adsorvida. As causas da fluência no concreto são complexas. Normalmente concorda-se que, além dos movimentos da umidade, há outras causas que contribuem para o fenômeno de fluência. A não-linearidade da relação tensão-deformação no concreto, especialmente em níveis de tensão maiores do que 30 a 40 por cento da última tensão, mostra claramente a contribuição das microfissuras da zona de transição à fluência, um fenômeno bem conhecido nas engenharias civil e materiais. A técnica de formação de uma microestrutura controlada vem sendo apontada como uma promissora alternativa para o entendimento do mecanismo de fluência. A avaliação do estudo bibliográfico procurou apontar os principais parâmetros e variáveis envolvidas nesta propriedade, de maneira a incentivar o seu desenvolvimento e pesquisa.This paper reports on a study of the influence of two different types of Portland cement on the creep property of concretes, a viscous elastic property originating in the hardened cement paste and presumably related mainly to the removal of adsorbed water. The causes of creep in concrete are complex. It is a generally accepted fact that, in addition to the movement of moisture, other causes contribute to the creep phenomenon. The nonlinearity of the stress-deformation relation in concrete, especially at levels of stress exceeding 30 to 40 per cent of the ultimate stress, clearly indicates the contribution of transition zone microcracks to creep, a phenomenon well known in civil and materials engineering. The controlled microstructure formation technique has been indicated as a promising alternative for

  19. GOVERNMENT EXPENDITURE ON ENGINEERING CONSTRUCTION, COMMUNICATION AND TRANSPORTATION: EVALUATION OF IMPACT ON ECONOMIC GROWTH IN NIGERIA

    Directory of Open Access Journals (Sweden)

    ALAMEZIEM KELECHI STANLEY

    2012-04-01

    Full Text Available This work tries to assess the impact of government investment in engineering construction, communication technology and transportation on economic growth in Nigeria. One null hypothesis guided the study and data was collected from 1977 to 2008 from Central Bank of Nigeria statistical bulletin. Data were analysed using regression, F and t tests, stationary and co-integration tests. Results revealed that increases in government expenditure in engineering construction impacted more significantly on economic growth than their expenditureon transport and communication. Increased expenditure on all sectors was recommended especially on engineering construction. In addition policy modifications are needed to ensure that government expenditure on the transportation and communication sector achieve greater impacts on economic growth.

  20. Realização de processos verbais em textos científicos da área de engenharia civil Realization of verbal processes in scientific texts in the field of civil engineering

    Directory of Open Access Journals (Sweden)

    Cristiane Fuzer

    2012-01-01

    Full Text Available O presente trabalho, vinculado ao projeto SAL, apresenta um estudo da realização de processos verbais em língua portuguesa do Brasil em textos da área de Engenharia Civil. O objetivo é analisar quais formas linguísticas realizam processos verbais, com que frequência são usados e que significados produzem em textos científicos dessa área. O corpus de análise constitui-se de 51 textos que compõem os volumes 1 e 2 do livro "Concreto: ciência e tecnologia", publicada pelo IBRACON (Instituto Brasileiro do Concreto. Para a compilação do corpus, seguiram-se princípios da Linguística de Corpus (Sardinha, 2004; Almeida & Correia, 2008. A identificação das formas linguísticas e o tratamento quantitativo dos dados foram realizados com auxílio das ferramentas WordListe Concord do WordSmith Tools (SCOTT, 2008. A análise das formas linguísticas foi realizada com base nos critérios da Gramática Sistêmico-Funcional (Halliday & Matthiessen, 2004 para descrição e classificação de processos verbais. Os resultados apontam que os verbos mais frequentes do corpus, recomendar e especificar, funcionam como processos de semiose do tipo comando e podem ser consideradas características do discurso científico na área de Engenharia Civil.Formas linguísticas em terceira pessoa do presente e no particípio servem como recurso de impessoalização no discurso científico.This paper, linked to the SAL project, presents a study on the realization of verbal processes in Brazilian Portuguese in Civil Engineering texts. Its aim is to analyse the linguistic forms that realize verbal processes, how often they are used and what meanings they produce in texts in that field. The corpus consists of the 51 texts in the 2 volumes of the book Concreto: ciência e tecnologia, published by IBRACON (InstitutoBrasileiro do Concreto. To compile the corpus we followed the principles of Corpus Linguistics (Sardinha, 2004; Almeida & Correia, 2008. The