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Anomalies in Special Permutation Flow Shop Scheduling Problems

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Chinese Journal of Mechanical Engineering 2020年第3期33卷 53-59页

作者： Lin gui Liang Gao Xinyu Li State Key Laboratory of Digital Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhan 430074China

Recent researches show that there are some anomalies,which are not satisfied with common sense,appearing in some special permutation flow shop scheduling problems(PFSPs).These anomalies can be divided into three different types,such as changing the processing time of some operations,changing the number of total jobs and changing the number of total *** paper summarizes these three types of anomalies showing in the special PFSPs and gives some examples to make them better *** extended critical path is proposed and the reason why these anomalies happen in special PFSPs is given:anomalies will occur in these special PFSPs when the time of the operations on the reverse critical path *** that,the further reason for these anomalies is presented that when any one of these three types of anomalies happens,the original constraint in the special PFSPs is destroyed,which makes the anomalies ***,the application of these anomalies in production practice is given through examples and also with the possible research *** main contribution of this research is analyzing the intial reason why the anomalies appear in special PFSPs and pointing out the application and the possible research directions of all these three types of anomalies.

关键词： Scheduling Permutation flow shop Anomaly

Robust Feedback Set Stabilization of Logic Networks with State-Dependent Uncertain Switching and Control Constraints

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Journal of Systems Science & Complexity 2024年第2期37卷 629-646页

作者： DAI Chaoqun GUO Yuqian gui Weihua School of Automation Central South UniversityChangsha 410083China

This study investigates the robust feedback set stabilization of switched logic control networks(SLCNs)with state-dependent uncertain switching and control ***,based on the properties of the semi-tensor product of matrices and the vector representation of logic,an SLCN with state-dependent uncertain switching and control constraints is expressed in algebraic ***,an input transformation and a switching model are constructed to transfer the original SLCN into one with a free control input and arbitrary *** equivalence between the set stabilizability of the original SLCN and that of the resulting SLCN is *** on such equivalence,the authors propose a necessary and sufficient condition for robust feedback set ***,an example is presented to demonstrate the application of the results obtained.

关键词： Input transformation robust control invariant subset robust feedback set stabilizability semi-tensor product state-dependent constraints switched logic control network

Pseudo-invariant Eigen-operator of a System About Three-Level Atom in Presence of a Kerr-Like Medium

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Communications in Theoretical Physics 2008年第11期50卷 1093-1095页

作者： gui Wei-Jun Department of Science Nanchang Institute of Technology Nanchang 330099 China

A system of a three-level atom interacting with single mode cavity field through multi-photon transition in the presence of a Kerr-like medium is proposed, and its pseudo-invariant eigen-operator （PIEO） and energy-l... 详细信息

关键词： pseudo-invariant eigen-operator Kerr-like medium

Trajectory clustering for arrival aircraft via new trajectory representation

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Journal of Systems Engineering and Electronics 2021年第2期32卷 473-486页

作者： gui Xuhao ZHANG Junfeng PENG Zihan College of Civil Aviation Nanjing University of Aeronautics and AstronauticsNanjing 211106China

Trajectory clustering can identify the flight patterns of the air traffic,which in turn contributes to the airspace planning,air traffic flow management,and flight time *** paper presents a semantic-based trajectory clustering method for arrival aircraft via new proposed trajectory *** proposed method consists of four significant steps:representing the trajectories,grouping the trajectories based on the new representation,measuring the similarities between different trajectories through dynamic time warping(DTW)in each group,and clustering the trajectories based on k-means and densitybased spatial clustering of applications with noise(DBSCAN).We take the inbound trajectories toward Shanghai Pudong International Airport(ZSPD)to carry out the case *** corresponding results indicate that the proposed method could not only distinguish the particular flight patterns,but also improve the performance of flight time estimation.

关键词： air traffic management trajectory clustering trajectory representation flight pattern

Static and dynamic studies of adsorption by four macroporous resins to enrich oridonin from Rabdosia rubescens

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Chinese Journal of Chemical Engineering 2021年第4期34卷 151-158页

作者： Ling Meng Xia gui Zhi Yun College of Chemical Engineering Nanjing Tech UniversityNanjing 211816China State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine Lunan Pharmaceutical Group Co.Ltd.Linyi 273400China

Oridonin,one of the active ingredients in Rabdosia rubescens(***),has been reported to induce cell apoptosis and cell cycle arrest in many *** extraction methods tend to result in unsatisfied enrichment and poor quality of oridonin present in a given *** paper aims to evaluate the performance and separation characteristics of four different macroporous resins to arrive at the most suitable methodology for the isolation and purification of highquality *** absorption kinetics,thermodynamic and dynamic adsorption were ***20 was selected for further study due to its high adsorption capacity of 32 mgg 1 and desorption ratio with 98.5%.The pseudosecondorder model was considered to be the most suitable for kinetic results,and Langmuir model was chosen to better describe the absorption *** optimum conditions(flow rate of 4 ml min 1,bed depth with 6 cm and initial concentration of 2.15 mg·ml^1),the effective content of oridonin increased from 33.9%to 79.1%in the dry extract with a recovery of 81%and the purity of oridonin improved from 76%to 93%.The results confirm that HP20 provides an efficient method to purify most oridonin from ***.

关键词： Rabdosia rubescens Oridonin Macroporous resin Adsorption Kinetics Thermodynamics

Highly conjugated water soluble CdSe quantum dots to multiwalled carbon nanotubes

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Chinese Chemical Letters 2009年第3期20卷 356-357页

作者： gui Zheng Zou School of Chemistry and Chemical Engineering Shandong University Jinan 250100 China

Highly conjugated multiwalled carbon nanotube-quantum dot heterojunctions were synthesized by ethylene carbodiimide coupling procedure. The functional multiwalled carbon nanotube with carboxylic groups on sidewall could react with the amino group of L-cysteine capped CdSe quantum dots and then resulted in nanotube-quantum dot heterojunctions. Scanning electron microscopy was used to characterize the heterojunctions.

关键词： Multiwalled carbon nanotubes Quantum dots Heterojunctions

Frustrated Ferromagnetic Spin Chain near the Transition Point

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Chinese Physics Letters 2011年第9期28卷 229-232页

作者： ZHU Ren-gui College of Physics and Electronic Information Anhui Normal UniversityWuhu 241000

The one-dimensional quantum spin-1/2 model with nearest-neighbor ferromagnetic and next-nearest-neighbor antiferromagnetic interaction is *** Hamiltonian is firstly rewritten in a form with rotated spin operators,then bosonized by using the linear spin wave approximation and then treated by using the Green function *** integral expression of the quantum correction to the classical ground state energy is *** critical behavior of the ground state energy in the vicinity of the transition point from the ferromagnetic to the singlet ground state is analyzed by numerical calculation and the result is−8γ^(2).

关键词： ferromagnetic quantum Transition

Bi-Hamiltonian Structure and Liouville Integrablity for a Gerdjikov-Ivanov Equation Hierarchy

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Chinese Physics Letters 2001年第1期18卷 1-3页

作者： FAN En-gui Institute of Mathematics Fudan UniversityShanghai 200433

A new spectral problem is introduced and the associated hierarchy of nonlinear evolution equations is derived with the help of the zero curvature equation as well as recursive *** is found that the Gerdjikov-Ivanov(GI)equation,which is one of three important derivative nonlinear Schrodinger equations,exactly belongs to the hierarchy as a special reduction.A powerful tool of the trace identity is used to establish the bi-Harniltonian structure for the whole GI ***,it is shown that GI hierarchy admits an infinite common set of conserved quantities which are in involution in pairs under Poisson's *** indicates that the whole GI hierarchy is completely integrable in Liouville's sense.

关键词： Liouville hierarchy equation

What is the wave function in quantum mechanics？

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Science Bulletin 2017年第20期62卷 1355-1356页

作者： gui-Lu Long State Key Laboratory of Low-dimensional Quantum Physics and Department of Physics Tsinghua University Beijing 100084 China The Innovative Center of Quantum Matter Beijing 100084 China Tsinghua National Laboratory of Information Science and Technology Beijing 100084 China

Quantum mechanics, is a pillar of modern science and technology, and has benefited human society for a century. Quantum mechanics works well, its predictions agree amazingly well with experiments, and its mathematical... 详细信息

关键词： quantum mechanics function