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Schedule Compression Impact on Construction Project Safety

Curt Webb,Lu Gao,Ling-guang Song

Frontiers of Engineering Management 2015, Volume 2, Issue 4,   Pages 344-350 doi: 10.15302/J-FEM-2015059

Abstract: In addition, construction schedulers are frequently forced to incorporate aggressive schedule compressionAs already discussed by previous researchers, these schedule compression techniques have direct impactsResearchers have also pointed out that schedule compression will affect safety incidents such as Occupationalcompression on safety at the project level.compression and safety in construction projects.

Keywords： construction safety     schedule compression     overtime     work shift     Hurdle model    

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Influence of steel corrosion on axial and eccentric compression behavior of coral aggregate concrete

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1415-1425 doi: 10.1007/s11709-021-0786-9

Abstract: To study the behavior of coral aggregate concrete (CAC) column under axial and eccentric compression,the compression behavior of CAC column with different types of steel and initial eccentricity (eNu under axial and eccentric compression

Keywords： coral aggregate concrete column     axial compression     eccentric compression     steel corrosion     calculation    

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Behavior of dam concrete under biaxial compression-tension and triaxial compression-compression-tension

WANG Huailiang, SONG Yupu

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 323-328 doi: 10.1007/s11709-008-0043-5

Abstract: Specimens subjected to biaxial compression-tension (C-T) and triaxial compression-compression-tension

Keywords： requirement     wet-screened concrete     compression-tension     maximum aggregate     principal    

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The origins of schedule management: the concepts used in planning, allocating, visualizing and managing

Lynda M. BOURNE, Patrick WEAVER

Frontiers of Engineering Management 2018, Volume 5, Issue 2,   Pages 150-166 doi: 10.15302/J-FEM-2018012

Abstract: Getting the in the at the has always been a major organizational challenge. In ancient times this process seems to have been accomplished based on the scheme of arrangements being contained in the leader’s mind and instructions communicated verbally. Modern approaches to solving the twin challenges of first thinking through the ‘plan’ and then communicating the plan to the people who need to do ‘ ’ use sophisticated graphics, charts, diagrams, and computations. This paper traces the development of the concepts most project managers take for granted including bar charts and critical path schedules from their origins (which are far earlier than most people think) through to the modern day. The first section of the paper looks at the development of concepts that allow the visualization of time and other data. The second looks at the shift from static representations to dynamic modeling through the emergence of computers, dynamic calculations and integrated data from the 1950s to the present time.

Keywords： time management     scheduling     CPM     PERT     Gantt     Critical Path     bar chart    

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Detection of schedule delay risk of empirical construction projects

Tsegay GEBREHIWET, Hanbin LUO

Frontiers of Engineering Management 2018, Volume 5, Issue 2,   Pages 251-267 doi: 10.15302/J-FEM-2018086

Abstract: In Ethiopian construction projects, schedule delay risk is a predominant issue because it is not properlyin construction projects, limited efforts have been made to investigate the typical and the overall scheduleIn this study, our aim is to detect the typical and overall schedule delay risk throughout the construction

Keywords： fuzzy analytic hierarchy process comprehensive evaluation     construction project     detection of delay risk     relative important index    

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Effects of compression ratio on the combustion characteristics of a homogeneous charge compression ignition

SONG Ruizhi, ZHOU Longbao, LIU Shenghua, LI Wei, HU Tiegang

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 463-467 doi: 10.1007/s11708-007-0068-0

Abstract: The effects of homogeneous charge compression ignition (HCCI) engine compression ratio on its combustion

Keywords： homogeneous     cylinder     combustion     compression     dimethyl    

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Numerical study of ignition mechanism of n-heptane direct injection compression-ignition engine

Xiaoping GUO, Zhanjie WANG,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 432-439 doi: 10.1007/s11708-009-0050-9

Abstract: A detailed chemical dynamical mechanism of oxidation of n-heptane was implemented into kiva-3 code to study the ignition mechanism of a high-temperature, high-pressure, three-dimensional-space, transient turbulent, non-homogeneous, mono-component fuel in the engine. By testing the quantity of the heat released by the chemical reaction within the cylinder cell, the elementary reaction showing an obvious increase in the cell temperature was defined as ignition reaction and the corresponding cell as ignition position. The main pathway of the ignition reaction was studied by using the reverse deducing method. The result shows that the ignition in the engine can be divided into low-temperature ignition and high-temperature ignition, both of which follow the same rule in releasing heat, called the impulse heat releasing feature. Low-temperature ignition reaction, whose ignition reaction is c5h9o1-4=ch3cho+c3h5-a, follows the oxidation mechanism, while high-temperature ignition reaction, whose ignition reaction is c2h3o1-2=ch3co, follows the decomposition mechanism. No matter which ignition it is in, the chemical reaction that restrains the ignition reaction from lasting is the deoxidization reaction of alkylperoxy radicals.

Keywords： compression-ignition engine     ignition mechanism     elementary reaction     n-heptane    

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Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 74-84 doi: 10.1007/s11465-018-0490-1

Abstract:

Compared with conventional injection molding, injection-compression molding can mold optical partsmelt flow process in a closed cavity becomes more complex because of the moving cavity boundary during compressionIn this study, a 3D simulation method was developed for injection-compression molding.method, arbitrary Lagrangian-Eulerian was introduced to model the moving-boundary flow problem in the compressionreveal that the fountain flow effect becomes significant when the cavity thickness increases during compression

Keywords： injection-compression molding     simulation     injection molding     melt flow     cavity pressure    

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System Simulation for Large-scale Bridge Construction Schedule Based on 4D CAD

Zhang Zhengfeng,Fu Jinqiang,Wu Kangxin,Zhang Fayu

Strategic Study of CAE 2006, Volume 8, Issue 1,   Pages 63-66

Abstract: upon 4D CAD was presented, which linked a 3D model of a construction project with a project activity schedule

Keywords： construction schedule     system simulation     4D CAD     cable-stayed bridge    

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Improvement of engine performance with high compression ratio based on knock suppression using Miller

Haiqiao WEI, Jie YU, Lei ZHOU

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 691-706 doi: 10.1007/s11708-019-0621-3

Abstract: In theory, high compression ratio has the potential to improve the thermal efficiency and promote theHowever, the application of high compression ratio is substantially limited by the knock in practicalThe objective of this work is to comprehensively investigate the application of high compression ratioratio similar to CR10, which could eliminate the knock limits at a high compression ratio and high loadTo verify the advantages of the high compression ratio, the fuel economy and power performance of CR10

Keywords： high compression ratio     knock     Miller cycle     split injection     engine performance    

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Efficient controller area network data compression for automobile applications

Yu-jing WU,Jin-Gyun CHUNG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 1,   Pages 70-78 doi: 10.1631/FITEE.1400136

Abstract: In this paper, we present a CAN message compression method to reduce the CAN frame length.By using an embedded test board, we show that 64-bit engine management system (EMS) CAN data compression

Keywords： Controller area network (CAN)     Electronic control units (ECUs)     Data compression     Signal rearrangement    

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Performance analysis of solar absorption-subcooled compression hybrid refrigeration system in subtropical

Xiangyang YE,Liming LIU,Zeyu LI

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 185-192 doi: 10.1007/s11708-017-0452-z

Abstract: Solar absorption-subcooled compression hybrid refrigeration system is a new type of efficient and economicalsimultaneously, the variation of working process as well as performance is complicated since the absorption and compression

Keywords： solar     absorption-subcooled     compression hybrid     dynamic simulation     performance analysis    

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Primary spinal epidural non-Hodgkin’s lymphoma presented with spinal cord compression syndrome

Chunquan CAI MD, PhD, Qingjiang ZHANG BM, Changhong SHEN MD, PhD,

Frontiers of Medicine 2009, Volume 3, Issue 4,   Pages 499-502 doi: 10.1007/s11684-009-0075-9

Abstract: A boy suffered spinal cord compression syndrome caused by primary spinal epidural non-Hodgkin’s

Keywords： non-Hodgkin’     s lymphoma     primary     spinal cord compression syndrome     epidural space    

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Schedule refinement for homogeneousmulti-core processors in the presence of manufacturing-caused heterogeneity

Zhi-xiang CHEN,Zhao-lin LI,Shan CAO,Fang WANG,Jie ZHOU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 12,   Pages 1018-1033 doi: 10.1631/FITEE.1500035

Abstract: according to the actual maximum clock frequencies at which cores can run, we present a heterogeneity-aware scheduleproposed scheme can improve the performance by an average value of 22.2%, compared with the baseline schedule

Keywords： Schedule refining     Multi-core processor     Heterogeneity     Representative chip operating point    

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Research on simulation evaluation method based on duration contro-llability of network schedule

Pan Feifei,Wang Renchao and Cao Yonglei

Strategic Study of CAE 2015, Volume 17, Issue 1,   Pages 143-150

Abstract: risk events，a stochastic simulation evaluation method based on duration controllability of network scheduledistribution of project duration was simulated which was utilized to evaluate the rationality of the network schedule

Keywords： network schedule； stochastic simulation； risk reaction； duration controllability； evaluation    

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Title Author Date Type Operation

Schedule Compression Impact on Construction Project Safety

Curt Webb,Lu Gao,Ling-guang Song

Journal Article

Influence of steel corrosion on axial and eccentric compression behavior of coral aggregate concrete

Journal Article

Behavior of dam concrete under biaxial compression-tension and triaxial compression-compression-tension

WANG Huailiang, SONG Yupu

Journal Article

The origins of schedule management: the concepts used in planning, allocating, visualizing and managing

Lynda M. BOURNE, Patrick WEAVER

Journal Article

Detection of schedule delay risk of empirical construction projects

Tsegay GEBREHIWET, Hanbin LUO

Journal Article

Effects of compression ratio on the combustion characteristics of a homogeneous charge compression ignition

SONG Ruizhi, ZHOU Longbao, LIU Shenghua, LI Wei, HU Tiegang

Journal Article

Numerical study of ignition mechanism of n-heptane direct injection compression-ignition engine

Xiaoping GUO, Zhanjie WANG,

Journal Article

Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Journal Article

System Simulation for Large-scale Bridge Construction Schedule Based on 4D CAD

Zhang Zhengfeng,Fu Jinqiang,Wu Kangxin,Zhang Fayu

Journal Article

Improvement of engine performance with high compression ratio based on knock suppression using Miller

Haiqiao WEI, Jie YU, Lei ZHOU

Journal Article

Efficient controller area network data compression for automobile applications

Yu-jing WU,Jin-Gyun CHUNG

Journal Article

Performance analysis of solar absorption-subcooled compression hybrid refrigeration system in subtropical

Xiangyang YE,Liming LIU,Zeyu LI

Journal Article

Primary spinal epidural non-Hodgkin’s lymphoma presented with spinal cord compression syndrome

Chunquan CAI MD, PhD, Qingjiang ZHANG BM, Changhong SHEN MD, PhD,

Journal Article

Schedule refinement for homogeneousmulti-core processors in the presence of manufacturing-caused heterogeneity

Zhi-xiang CHEN,Zhao-lin LI,Shan CAO,Fang WANG,Jie ZHOU

Journal Article

Research on simulation evaluation method based on duration contro-llability of network schedule

Pan Feifei,Wang Renchao and Cao Yonglei

Journal Article