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Analysis of dispatching rules in a stochastic dynamic job shop manufacturing system with sequence-dependentsetup times

Pankaj SHARMA,Ajai JAIN

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 380-389 doi: 10.1007/s11465-014-0315-9

Abstract:

Stochastic dynamic job shop scheduling problem with consideration of sequence-dependent setup times, maximum flow time, mean tardiness, maximum tardiness, number of tardy jobs, total setups and mean setuptimes less than processing times.The job with similar setup and modified earliest due date (JMEDD) rule provides the best performancefor makespan, maximum flow time, mean tardiness, maximum tardiness, total setups and mean setup time

Keywords： scheduling     stochastic dynamic job shop     sequence-dependent setup times     dispatching rule     simulation    

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Determination of the feasible setup parameters of a workpiece to maximize the utilization of a five-axis

Aqeel AHMED, Muhammad WASIF, Anis FATIMA, Liming WANG, Syed Amir IQBAL

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 298-314 doi: 10.1007/s11465-020-0621-3

Abstract: and machining envelope, thereby further developing an algorithm to determine the feasible workpiece setupFinally, the algorithm is validated for feasible workpiece setup parameters in a virtual environment.applicable in the industry to eliminate the number of iterations performed for the suitable workpiece setup

Keywords： workpiece setup parameter     five-axis     space utilization     setup parameters     machine tool    

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Finite element model updating of a large structure using multi-setup stochastic subspace identification

Reza KHADEMI-ZAHEDI, Pouyan ALIMOURI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 965-980 doi: 10.1007/s11709-019-0530-x

Abstract: The natural frequencies of the solar power plant structure are estimated by multi-setup stochastic subspace

Keywords： operational modal analysis     solar power plant structure     multi-setup stochastic subspace     bees optimization    

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Ant colony optimization for assembly sequence planning based on parameters optimization

Zunpu HAN, Yong WANG, De TIAN

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 393-409 doi: 10.1007/s11465-020-0613-3

Abstract: As an important part of product design and manufacturing, assembly sequence planning (ASP) has a considerabletypical NP-complete problem that requires effective methods to find the optimal or near-optimal assembly sequenceThe assembly constraints and rules guarantee to obtain a reasonable assembly sequence.SOS) and ant colony optimization (ACO) is proposed to calculate the optimal or near-optimal assembly sequenceSOS-ACO is also robust in identifying the best assembly sequence in nearly every experiment.

Keywords： assembly sequence planning     ant colony optimization     symbiotic organisms search     parameter optimization    

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Applicability of high dimensional model representation correlations for ignition delay times of n-heptane

Wang LIU, Jiabo ZHANG, Zhen HUANG, Dong HAN

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 367-376 doi: 10.1007/s11708-018-0584-9

Abstract: It is difficult to predict the ignition delay times for fuels with the two-stage ignition tendency becauseA detailed n-heptane chemical mechanism was used to calculate the fuel ignition delay times in the adiabaticBesides, the ignition delay times predicted by both types of correlations were validated against thoseshowed that both correlations had a satisfactory prediction accuracy in general for the ignition delay timesTherefore, it is concluded that HDMR correlations are capable of predicting the ignition delay times

Keywords： ignition delay     random sampling     high dimensional model representation     n-heptane     fuel kinetics    

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China’s Energy Transition Pathway in a Carbon Neutral Vision Article

Shu Zhang, Wenying Chen

Engineering 2022, Volume 14, Issue 7,   Pages 64-76 doi: 10.1016/j.eng.2021.09.004

Abstract: Here, leveraging the highly acclaimed The Integrated MARKAL-EFOM System model of China (China TIMES)consideration, four carbon-neutral scenarios are proposed and compared for different emission peak times

Keywords： Carbon neutrality     Energy transition     Climate change mitigation     China TIMES model     Synergistic effects    

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Rolling-element bearings in China: From ancient times to the 20th century

Lie SUN,Ang LI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 33-43 doi: 10.1007/s11465-016-0373-2

Abstract:

The development of rolling-element bearings in China has spanned a long period. Based on several typical and important cases, the present article reconstructs the history of rolling-element bearings in China by dividing it into four stages according to the various characteristics of the bearings. The first stage represents the origin of rolling bearings in China, which remains controversial because of several suspected races and cages that were likely the components of bearings more than a millennium ago. At the second stage, a type of simple roller bearing was used for astronomical instruments not later than the 13th century based on clear philological and physical evidence. A similar bearing was also applied to an abridged armillary in the 17th century. Another type of spherical thrust bearings with rolling elements, which is a key component of a traditional Chinese windmill, could support a rotating shaft that moves rotationally and at an angle. At the third stage, the Chinese began studying and using the so-called European-style bearing since the 17th century. Moreover, over the last 100 years, the modern rolling bearing industry was gradually established in China, particularly because of the technology transfer from the Soviet Union in the 1950s. At the fourth stage, the Chinese government initiated the relatively rapid development of bearing technology. The government launched the “bearing movement” from the 1950s to the 1960s to establish the modern bearing industry and to promote rolling bearings as replacement for traditional sliding bearings. Furthermore, a number of large professional factories and institutions in China have continually introduced advanced technology and equipment. At present, these companies and institutions play a significant role in the international bearing industry.

Keywords： bearing movement     rolling-element bearing     China     early rolling bearings     technology transfer    

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Data-driven approach to solve vertical drain under time-dependent loading

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 696-711 doi: 10.1007/s11709-021-0727-7

Abstract: , the vertical drain consolidation problem is solved by numerous analytical solutions, such as time-dependentDNN–GA prediction models with three different radial drainage patterns in the smear zone under time-dependent

Keywords： vertical drain     artificial neural network     time-dependent loading     deep learning network     genetic algorithm    

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Effect of 2,5-dimethylfuran addition on ignition delay times of n-heptane at high temperatures

Zhenhua GAO, Erjiang HU, Zhaohua XU, Geyuan YIN, Zuohua HUANG

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 464-473 doi: 10.1007/s11708-019-0609-z

Abstract: The experimental observations indicate that the ignition delay times nonlinearly increase with an increasecompetition of small radicals, which primarily leads to the nonlinear increase in the ignition delay times

Keywords： ignition delay time     shock tube     kinetic model     2     5-dimethylfuran (DMF)     n-heptane    

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Chloride binding and time-dependent surface chloride content models for fly ash concrete

S. MUTHULINGAM,B. N. RAO

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1,   Pages 112-120 doi: 10.1007/s11709-015-0322-x

Abstract: Corrosion of embedded rebars is a classical deterioration mechanism of reinforced concrete structures exposed to chloride environments. Such environments can be attributed to the presence of seawater, deicing or sea-salts, which have high concentrations of chloride ion. Chloride ingress into concrete, essential for inducing rebar corrosion, is a complex interaction between many physical and chemical processes. The current study proposes two chloride ingress parameter models for fly ash concrete, namely: 1) surface chloride content under tidal exposure condition; and 2) chloride binding. First, inconsistencies in surface chloride content and chloride binding models reported in literature, due to them not being in line with past research studies, are pointed out. Secondly, to avoid such inconsistencies, surface chloride content and chloride binding models for fly ash concrete are proposed based upon the experimental work done by other researchers. It is observed that, proposed models are simple, consistent and in line with past research studies reported in literature.

Keywords： binding isotherms     chloride ingress     concrete     fly ash     surface chloride content    

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The research of grey clustering decision of assembly sequence based on petri net

Mo Qian,Luo Yi

Strategic Study of CAE 2008, Volume 10, Issue 11,   Pages 65-68

Abstract: according to the intuitionistic graphics mode characteristics of petri net, and gets feasible assembly sequenceMost of factors influencing assembly sequence are certainly qualitative, fuzzy, non-numerical, assemblysequence is regarded as a gray system, and grey clustering decision method is adopted to evaluate feasibleassembly sequence.

Keywords： assembly sequence     petri net     grey clustering decision method    

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On the Innovative Intellects of the New Times

Gan Ziheng,Jin Youlin

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 26-34

Abstract: justify;">The paper explains the great importance of the research on the innovative talents of the new times,  and explores the connotation of the new times: taking innovation as the age spirit,  including In the paper the innovative talents of the new times are divided into four categories: the generalwith up-to-date sense of times,  the comprehension of qualities, the advantage of orientations, The paper summarizes the training pattern of innovative talents of the new times and interprets

Keywords： new times     innovative talent     top innovative talent     outstanding innovative talent     master talent    

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Transforming bacterial disease surveillance and investigation using whole-genome sequence to probe the

Biao Kan, Haijian Zhou, Pengcheng Du, Wen Zhang, Xin Lu, Tian Qin, Jianguo Xu

Frontiers of Medicine 2018, Volume 12, Issue 1,   Pages 23-33 doi: 10.1007/s11684-017-0607-7

Abstract:

Two decades have passed since the first bacterial whole-genome sequencing, which provides new opportunity for microbial genome. Consequently, considerable genetic diversity encoded by bacterial genomes and among the strains in the same species has been revealed. In recent years, genome sequencing techniques and bioinformatics have developed rapidly, which has resulted in transformation and expedited the application of strategy and methodology for bacterial genome comparison used in dissection of infectious disease epidemics. Bacterial whole-genome sequencing and bioinformatic computing allow genotyping to satisfy the requirements of epidemiological study in disease control. In this review, we outline the significance and summarize the roles of bacterial genome sequencing in the context of bacterial disease control and prevention. We discuss the applications of bacterial genome sequencing in outbreak detection, source tracing, transmission mode discovery, and new epidemic clone identification. Wide applications of genome sequencing and data sharing in infectious disease surveillance networks will considerably promote outbreak detection and early warning to prevent the dissemination of bacterial diseases.

Keywords： genome sequencing     genomic epidemiology     bacteria     surveillance     infectious diseases    

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GDF15 negatively regulates chemosensitivity via TGFBR2-AKT pathway-dependent metabolism in esophageal

Frontiers of Medicine 2023, Volume 17, Issue 1,   Pages 119-131 doi: 10.1007/s11684-022-0949-7

Abstract: resulted in the reversal of the GDF15-induced expression of UGT1A, indicating that TGFBR2-AKT pathway-dependent

Keywords： GDF15     esophageal squamous cell carcinoma     chemoresistance     cellular metabolism     TGFBR2     AKT    

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Title Author Date Type Operation

Analysis of dispatching rules in a stochastic dynamic job shop manufacturing system with sequence-dependentsetup times

Pankaj SHARMA,Ajai JAIN

Journal Article

Determination of the feasible setup parameters of a workpiece to maximize the utilization of a five-axis

Aqeel AHMED, Muhammad WASIF, Anis FATIMA, Liming WANG, Syed Amir IQBAL

Journal Article

Finite element model updating of a large structure using multi-setup stochastic subspace identification

Reza KHADEMI-ZAHEDI, Pouyan ALIMOURI

Journal Article

Ant colony optimization for assembly sequence planning based on parameters optimization

Zunpu HAN, Yong WANG, De TIAN

Journal Article

Applicability of high dimensional model representation correlations for ignition delay times of n-heptane

Wang LIU, Jiabo ZHANG, Zhen HUANG, Dong HAN

Journal Article

China’s Energy Transition Pathway in a Carbon Neutral Vision

Shu Zhang, Wenying Chen

Journal Article

Rolling-element bearings in China: From ancient times to the 20th century

Lie SUN,Ang LI

Journal Article

Data-driven approach to solve vertical drain under time-dependent loading

Journal Article

Effect of 2,5-dimethylfuran addition on ignition delay times of n-heptane at high temperatures

Zhenhua GAO, Erjiang HU, Zhaohua XU, Geyuan YIN, Zuohua HUANG

Journal Article

Chloride binding and time-dependent surface chloride content models for fly ash concrete

S. MUTHULINGAM,B. N. RAO

Journal Article

The research of grey clustering decision of assembly sequence based on petri net

Mo Qian,Luo Yi

Journal Article

On the Innovative Intellects of the New Times

Gan Ziheng,Jin Youlin

Journal Article

Transforming bacterial disease surveillance and investigation using whole-genome sequence to probe the

Biao Kan, Haijian Zhou, Pengcheng Du, Wen Zhang, Xin Lu, Tian Qin, Jianguo Xu

Journal Article

GDF15 negatively regulates chemosensitivity via TGFBR2-AKT pathway-dependent metabolism in esophageal

Journal Article

Advancing with the Times, Developing and Innovating-National Defense Science and Technology Industry

Journal Article