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Airline planning and scheduling: Models and solution methodologies

Lei ZHOU, Zhe LIANG, Chun-An CHOU, Wanpracha Art CHAOVALITWONGSE

Frontiers of Engineering Management 2020, Volume 7, Issue 1,   Pages 1-26 doi: 10.1007/s42524-020-0093-5

Abstract: on three major problems in the airline scheduling, namely, fleet assignment, aircraft routing, and crewGeneral formulation, widely used solution approaches, and important extensions are presented for each problem

Keywords： airline planning     fleet assignment problem     aircraft routing problem     crew pairing problem     crew rosteringproblem     crew scheduling problem     integrated planning    

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Airline Disruption Management: A Review of Models and Solution Methods Review

Yi Su, Kexin Xie, Hongjian Wang, Zhe Liang, Wanpracha Art Chaovalitwongse, Panos M. Pardalos

Engineering 2021, Volume 7, Issue 4,   Pages 435-447 doi: 10.1016/j.eng.2020.08.021

Abstract: Then, basic models and recently proposed extensions for aircraft recovery, crew recovery, and integrated

Keywords： Disruption management     Aircraft recovery problem     Crew recovery problem     Integrated recovery problem    

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Constructing pairing-free certificateless public key encryption with keyword search Research Articles

Yang LU, Ji-guo LI

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 8,   Pages 1049-1060 doi: 10.1631/FITEE.1700534

Abstract: It overcomes the key escrow problem in identity-based cryptosystems and the cumbersome certificate problemHowever, all of them were constructed with the costly bilinear pairing and thus are not suitable forSo, it is interesting and worthwhile to design a CLEKS scheme without using bilinear pairing.In this study, we put forward a pairing-free CLEKS scheme that does not exploit bilinear pairing.adaptive chosen-keyword attacks under the complexity assumption of the computational Diffie-Hellman problem

Keywords： Searchable public key encryption     Certificateless public key encryption with keyword search     Bilinear pairing     Computational Diffie-Hellman problem    

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Discussion on Problem-Based Engineering Management System

Qiao Xiang

Frontiers of Engineering Management 2015, Volume 2, Issue 3,   Pages 249-260 doi: 10.15302/J-FEM-2015054

Abstract: The paper puts forward the idea of problem-based engineering management, expounds its connotation and

Keywords： problem     engineering management     system    

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A solution to stochastic unit commitment problem for a wind-thermal system coordination

B. SARAVANAN,Shreya MISHRA,Debrupa NAG

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 192-200 doi: 10.1007/s11708-014-0306-x

Abstract: Unit commitment (UC) problem is one of the most important decision making problems in power system.In this paper the UC problem is solved by considering it as a real time problem by adding stochasticityaddressed is the achievement of an economic unit commitment solution after solving UC as a real time problemThis paper proposes a hybrid approach to solve the stochastic unit commitment problem considering thevolatile nature of wind and formulating the UC problem as a chance constrained problem in which the

Keywords： unit commitment (UC)     randomness     wind generation     univariate     chance constrained    

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Solving unit commitment problem using a novel version of harmony search algorithm

Roozbeh MORSALI,Tohid JAFARI,Amirhossein GHODS,Mohammad KARIMI

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 297-304 doi: 10.1007/s11708-014-0309-7

Abstract: novel structure was proposed for improving harmony search (HS) algorithm to solve the unit comment (UC) problem

Keywords： generation scheduling     harmony search (HS) algorithm     intelligent technique     unit commitment    

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Transient analysis of thermoelastic contact problem of disk brakes

Ali BELHOCINE, Mostefa BOUCHETARA

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 2,   Pages 150-159 doi: 10.1007/s11465-013-0266-6

Abstract:

The main purpose of this study is to analyze the thermomechanical behavior of the dry contact between the brake disk and pads during the braking phase. The simulation strategy is based on computer code ANSYS11. The modeling of transient temperature in the disk is actually used to identify the factor of geometric design of the disk to install the ventilation system in vehicles. The thermal-structural analysis is then used with coupling to determine the deformation established and the Von Mises stresses in the disk, the contact pressure distribution in pads. The results are satisfactory compared to those found in the literature.

Keywords： brake disks     heat flux     heat-transfer coefficient     Von Mises stress     contact pressure    

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A solution to the unit commitment problem—a review

B. SARAVANAN, Siddharth DAS, Surbhi SIKRI, D. P. KOTHARI

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 223-236 doi: 10.1007/s11708-013-0240-3

Abstract: Unit commitment (UC) is an optimization problem used to determine the operation schedule of the generatingMany algorithms have been invented in the past five decades for optimization of the UC problem, but stillresearchers are working in this field to find new hybrid algorithms to make the problem more realistic

Keywords： unit commitment (UC)     optimization     deterministic load     stochastic load     evolutionary programming (EP)     hybrid    

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Hydrocele of the canal of Nuck — an old problem revisited

John Bunni, Mark Gillam, Ian Michael Pope

Frontiers of Medicine 2013, Volume 7, Issue 4,   Pages 517-519 doi: 10.1007/s11684-013-0300-4

Abstract:

Herein the authors describe the case of a young woman presenting with a tender lump in her groin. Clinically the differential was of either a reactive lymph node or a femoral hernia. Ultrasound scan was urgently arranged and showed a cystic lesion. Surgical exploration was carried out and revealed this to be a hydrocele of the canal of Nuck. This was excised and the patient’s symptoms resolved and she was discharged home the following day. We explore the embryology, pathophysiology and management of this rare entity.

Keywords： canal of Nuck     hernia     embryology    

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Spatial channel pairing based coherent combining for relay networks Article

Feng SHU,Xiao-hui HUANG,Jin-song HU,Ting-ting LIU,Ri-qing CHEN,Xiao-hu YOU,Jun LI,Jin WANG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 9,   Pages 938-945 doi: 10.1631/FITEE.1500436

Abstract: In this paper, spatial channel pairing (SCP) is introduced to coherent combining at the relay in relay

Keywords： Spatial channel pairing     Coherent combining     Alternating iterative structure     Symbol error rate     Distributed    

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Fast determination of tobramycin by reversed-phase ion-pair high performance liquid chromatography with a refractive index detector

Liang ZHU, Jingkang WANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 3,   Pages 322-328 doi: 10.1007/s11705-013-1348-z

Abstract: A simple and direct method without a derivation step for routine analysis of tobramycin has been developed. This method used reversed-phase ion-pair high performance liquid chromatography (HPLC) with a refractive index (RI) detector and a C18 column which is stable at pH above 1.00. The presence of 4.50 mg·mL trifluoroacetic acid (TFA) in the mobile phase improved the protonation of tobramycin and the formation of ion-pairs, and thus reduced its hydrophility. This unique separation–detection combination showed good linearity with correlation coefficients 0.9996 in the concentration range of 0.25–2.50 mg·mL . The quantitation limit and detection limit were determined to be 0.23 mg·mL and 0.071 mg·mL , respectively. Tobramycin was recovered in 98.00%, 98.84% and 99.64% for tobramycin solutions at concentrations of 2.25 mg·mL , 1.50 mg·mL and 0.75 mg·mL , respectively. The relative standard deviations for six spiked samples ranged from 0.20% to 2.40%, indicating a good reproducibility of this method.

Keywords： tobramycin     aminoglycoside     refractive index detector     high-performance liquid chromatography     ion-pairing    

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A solution to unit commitment problem using invasive weed optimization algorithm

B. SARAVANAN, E. R. VASUDEVAN, D. P. KOTHARI

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 487-494 doi: 10.1007/s11708-013-0279-1

Abstract: Unit commitment (UC) is one of the most important aspect of power generation in the world today. Though, there is no method to find the exact optimized solution, there exists several meta-heuristic algorithms to determine the close to exact solution. This paper proposes a novel solution to effectively determine UC and generation cost using the technique of invasive weed optimization (IWO). The existing technique distributes the load demand among all the generating units. The method proposed here utilizes the output of UC obtained by using the Lagrangian relaxation (LR) method and calculates the required generation from only the plants that are ON discarding the OFF generator units and thereby giving a faster and more accurate response. Moreover, the results show the comparison between the LR-particle swarm optimization (PSO) and LR-IWO, and prove that the cost of generation for a 4 unit, 8 hour schedule is much less in the case of IWO when compared to PSO.

Keywords： Lagrangian relaxation (LR)     invasive weed optimization (IWO)     economic dispatch     optimization     fuel cost     seed     fitness    

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Method for solving the nonlinear inverse problem in gas face seal diagnosis based on surrogate models

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0689-z

Abstract: computational cost of inferring the input fault parameters for the observed output or solving the inverse problemThe presented work develops a surrogate-model-assisted method for solving the nonlinear inverse problem

Keywords： surrogate model     gas face seal     fault diagnosis     nonlinear dynamics     tribology    

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A new technique for solving the multi-objective optimization problem using hybrid approach

Mimoun YOUNES,Khodja FOUAD,Belabbes BAGDAD

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 490-503 doi: 10.1007/s11708-014-0311-0

Abstract: greenhouse gases and to reduce CO emissions forced the power system operators to consider the emission problemThe economic power dispatch problem has, therefore, become a multi-objective optimization problem.To achieve a good design with different solutions in a multi-objective optimization problem, fuel costand pollutant emissions are converted into single optimization problem by introducing penalty factorNow the power dispatch is formulated into a bi-objective optimization problem, two objectives with two

Keywords： economic power dispatch (EPD)     firefly algorithm (FFA)     real genetic algorithm (RGA)     hybrid method    

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Two-level uncapacitated lot-sizing problem considering the financing cost of working capital requirement

Yuan BIAN, David LEMOINE, Thomas G. YEUNG, Nathalie BOSTEL

Frontiers of Engineering Management 2020, Volume 7, Issue 2,   Pages 248-258 doi: 10.1007/s42524-019-0069-5

Abstract: However, in literatures related to lot-sizing problem, WCR has only been studied in the single-levelTo tackle this problem, we propose sequential and centralized approaches to solve the two-level caseThis property allows us to establish a dynamic programming-based algorithm, which solves the problem

Keywords： two-level ULS problem     lot-sizing     working capital requirement     ZIO property     infinite production capacity    

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Title Author Date Type Operation

Airline planning and scheduling: Models and solution methodologies

Lei ZHOU, Zhe LIANG, Chun-An CHOU, Wanpracha Art CHAOVALITWONGSE

Journal Article

Airline Disruption Management: A Review of Models and Solution Methods

Yi Su, Kexin Xie, Hongjian Wang, Zhe Liang, Wanpracha Art Chaovalitwongse, Panos M. Pardalos

Journal Article

Constructing pairing-free certificateless public key encryption with keyword search

Yang LU, Ji-guo LI

Journal Article

Discussion on Problem-Based Engineering Management System

Qiao Xiang

Journal Article

A solution to stochastic unit commitment problem for a wind-thermal system coordination

B. SARAVANAN,Shreya MISHRA,Debrupa NAG

Journal Article

Solving unit commitment problem using a novel version of harmony search algorithm

Roozbeh MORSALI,Tohid JAFARI,Amirhossein GHODS,Mohammad KARIMI

Journal Article

Transient analysis of thermoelastic contact problem of disk brakes

Ali BELHOCINE, Mostefa BOUCHETARA

Journal Article

A solution to the unit commitment problem—a review

B. SARAVANAN, Siddharth DAS, Surbhi SIKRI, D. P. KOTHARI

Journal Article

Hydrocele of the canal of Nuck — an old problem revisited

John Bunni, Mark Gillam, Ian Michael Pope

Journal Article

Spatial channel pairing based coherent combining for relay networks

Feng SHU,Xiao-hui HUANG,Jin-song HU,Ting-ting LIU,Ri-qing CHEN,Xiao-hu YOU,Jun LI,Jin WANG

Journal Article

Fast determination of tobramycin by reversed-phase ion-pair high performance liquid chromatography with a refractive index detector

Liang ZHU, Jingkang WANG

Journal Article

A solution to unit commitment problem using invasive weed optimization algorithm

B. SARAVANAN, E. R. VASUDEVAN, D. P. KOTHARI

Journal Article

Method for solving the nonlinear inverse problem in gas face seal diagnosis based on surrogate models

Journal Article

A new technique for solving the multi-objective optimization problem using hybrid approach

Mimoun YOUNES,Khodja FOUAD,Belabbes BAGDAD

Journal Article

Two-level uncapacitated lot-sizing problem considering the financing cost of working capital requirement

Yuan BIAN, David LEMOINE, Thomas G. YEUNG, Nathalie BOSTEL

Journal Article