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An O(rL)Infeasible Interior-point Algorithm for Symmetric Cone LCP via CHKS Function

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Acta Mathematicae Applicatae Sinica 2009年第4期25卷 593-606页

作者： zi-yan luo Nai-hua xiu Department of Mathematics School of Science Beijing Jiaotong University Beijing 100044 China Department of Mathematics School of Science Beijing Jiaotong University Key Laboratory of Communication and Information System (Beijing Jiaotong University) Beijing Municipal Commission of Education Beijing 100044 China

In this paper, we propose a theoretical framework of an infeasible interior-point algorithm for solving monotone linear cornplementarity problems over symmetric cones （SCLCP）. The new algorithm gets Newton-like directions from the Chen-Harker-Kanzow-Smale （CHKS） smoothing equation of the SCLCP. It possesses the following features： The starting point is easily chosen; one approximate Newton step is computed and accepted at each iteration; the iterative point with unit stepsize automatically remains in the neighborhood of central path; the iterative sequence is bounded and possesses （9（rL） polynomial-time complexity under the monotonicity and solvability of the SCLCP.

关键词： Infeasible interior-point algorithm symmetric cone linear complementarity problem monotonicity polynomial complexity

A novel vibration modeling method for a rotating blade with breathing cracks

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Science China(Technological Sciences) 2019年第2期62卷 333-348页

作者： xIE JingSong zi YanYang ZHANG MingQuan luo QinYuan State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University

This paper proposes a vibration modeling method for a rotating blade with breathing cracks, considering the coupling of the centrifugal effects, the breathing effects and the crack effects. Firstly, considering the combined effects of the centrifugal stress and the bending stress, a crack breathing model for the rotating blade is proposed. Since the crack surface cannot provide the spanwise centrifugal tensile stress, an additional bending moment will be generated at the crack surface in the rotating ***, an additional bending moment caused by the centrifugal stress is then constructed. In addition, due to the discontinuity of the crack cross section, the additional stiffness caused by the centrifugal effects of the cracked blade will be smaller than that of the normal blade. Therefore, a correction coefficient of the centrifugal stiffness is built. Furthermore, based on the Lagrange equation and the assumed modal method, the vibration equation of the rotating blade with a breathing crack is established(RBC model), and a strategy is constructed for solving this vibration equation. Finally, taking the finite element model(FEM) as a reference, the vibration responses of the RBC model, the open crack model(OC) and the bilinear crack model(BC) are compared. The necessity of the RBC model is illustrated, and the accuracy of the RBC model is verified. The RBC model is a computationally efficient alternative to the finite element analysis for the rotating cracked blade. It can provide an important tool for the vibration modeling and the vibration analysis of the rotating shaft-disk-blade system with cracked blades.

关键词： vibration modeling rotating blade crack breathing model centrifugal effects

Local Structures and Chemical Properties of Deprotonated Arginine

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Chinese Journal of Chemical Physics 2012年第6期25卷 681-686,I0003,I0004页

作者： Hong-bao Li zi-jing Lin Yi luo Hefei National Laboratory for Physical Sciences at the Microscale and Department of Physics University of Science and Technolo&y of China Hefei 230025 China Department of Theoretical Chemistry and Biology School of BiotechnoloEy Royal Institute ofTechnoloEy S-106 91 Stockholm Sweden

The potential energy surface of gaseous deprotonated arginine has been systematically in- vestigated by first principles calculations. At the B3LYP/6-31G（d） level, apart from the identification of several stable local structures, a new global minimum is located which is about 6.56 k J/tool more stable than what has been reported. The deprotonated arginine molecule has two distinct forms with the deprotonation at the carboxylate group （COO-）. These two forms are bridged by a very high energy barrier and possess very different IR spectral profiles. Our calculated proton dissociation energy and gas-phase acidity of argi- nine molecule are found to be in good agreement with the corresponding experimental results. The predicted geometries, dipole moments, rotational constants, vertical ionization energies and IR spectra of low energy conformers will be useful for future experimental measurements.

关键词： Deprotonated arginine Energy barrier IR spectrum Gas-phase acidity

Effects of Spatial Noncommutativity on Energy Spectrum of a Trapped Bose-Einstein Condensate

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Communications in Theoretical Physics 2006年第6X期46卷 966-968页

作者： luo You-Hua GE zi-Ming Institute for Theoretical Physics and Department of Physics East China University of Science and Technology Shanghai 200237 China

In noncommutative space, we examine the problem of a noninteracting and harmonically trapped Bose- Einstein condensate, and derive a simple analytic expression for the effect of spatial noncommutatlvity on energy spectrum of the condensate, it indicates that the ground-state energy incorporating the spatial noncommutativity is reduced to a lower level, which depends upon the noncommutativity parameter 8. The gap between the noncommutative space and commutative one for the ground-state level of the condensate should be a signal of spatial noncommutativity.

关键词： spatial noncommutativity energy spectrum Bose Einstein condensate

Research on clothing patterns generation based on multi-scales self-attention improved generative adversarial network

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International Journal of Intelligent Computing and Cybernetics 2021年第4期14卷 647-663页

作者： zi-yan Yu Tian-jian luo Department of Fashion Art Design Hubei Institute of Fine ArtsWuhanChinaand College of Computer and Cyber Security Fujian Normal UniversityFuzhouChina

Purpose-Clothing patterns play a dominant role in costume design and have become an important link in the perception of costume *** clothing patterns design relies on experienced *** the quality of clothing patterns is very high on conventional design,the input time and output amount ratio is relative low for conventional *** order to break through the bottleneck of conventional clothing patterns design,this paper proposes a novel way based on generative adversarial network(GAN)model for automatic clothing patterns generation,which not only reduces the dependence of experienced designer,but also improve the input-output ***/methodology/approach-In view of the fact that clothing patterns have high requirements for global artistic perception and local texture details,this paper improves the conventional GAN model from two aspects:a multi-scales discriminators strategy is introduced to deal with the local texture details;and the selfattention mechanism is introduced to improve the global artistic ***,the improved GAN called multi-scales self-attention improved generative adversarial network(MS-SA-GAN)model,which is used for high resolution clothing patterns ***-To verify the feasibility and effectiveness of the proposed MS-SA-GAN model,a crawler is designed to acquire standard clothing patterns dataset from Baidu pictures,and a comparative experiment is conducted on our designed clothing patterns *** experiments,we have adjusted different parameters of the proposed MS-SA-GAN model,and compared the global artistic perception and local texture details of the generated clothing ***/value-Experimental results have shown that the clothing patterns generated by the proposed MS-SA-GANmodel are superior to the conventional algorithms in some local texture detail *** addition,a group of clothing design professionals is invited to evaluate the global artistic perception thr

关键词： Clothing-patterns Generative adversarial network Multi-scales discriminators Self-attention mechanism Global artistic perception

The MAP/PH/N Retrial Queue in a Random Environment

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Acta Mathematicae Applicatae Sinica 2013年第4期29卷 725-738页

作者： Gang YANG luo-gen YAO zi-sheng OUYANG School of Information Hunan University of Commerce

We consider the MAP/PH/N retrial queue with a finite number of sources operating in a finite state Markovian random environment. Two different types of multi-dimensional Markov chains are investigated describing the behavior of the system based on state space arrangements. The special features of the two formulations are discussed. The algorithms for calculating the stationary state probabilities are elaborated, based on which the main performance measures are obtained, and numerical examples are presented as well.

关键词： retrial queue Markovian arrival process (MAP) phase-type service Markovian random environ-ment finite number of sources

Protein nanoparticles as potent delivery vehicles for polycytosine RNA-binding protein one

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World Journal of Diabetes 2025年第1期16卷 222-225页

作者： zi-Yu Zhao Pei-Li luo xia Guo Zheng-Wei Huang State Key Laboratory of Bioactive Molecules and Druggability Assessment Guangdong Basic Research Center of Excellence for Natural Bioactive Molecules and Discovery of Innovative DrugsCollege of PharmacyJinan UniversityGuangzhou 511436Guangdong ProvinceChina

Ma et al recently reported in the World Journal of Diabetes that ferroptosis occurs in osteoblasts under high glucose conditions,reflecting diabetes *** condition could be protected by the upregulation of the gene encoding polycytosine RNA-binding protein 1(PCBP1).Additionally,Ma et al used a lentivirus infection system to express *** the authors’method of administration can be improved in terms of stability and cost,we propose delivering PCBP1 to treat type 2 diabetic osteoporosis by encapsulating it in protein ***,PCBP1 is small and ***,intravenous injection can help deliver PCBP1 across the mucosa while avoiding acid and enzyme-catalyzed ***,incorporating PCBP1 into nanoparticles prevents its interaction with water or oxygen and protects PCBP1’s structure and ***,the safety of the protein materials and the industrialization techniques for large-scale production of protein nanoparticles must be comprehensively investigated before clinical application.

关键词： Polycytosine RNA-binding protein 1 Protein nanoparticle Osteoblast Ferroptosis Diabetes

Recent Progresses in Liquid-Free Soft Ionic Conductive Elastomers

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Chinese Journal of Chemistry 2023年第7期41卷 835-860页

作者： Chuan luo Zhenkai Huang zi-Hao Guo Kan Yue South China Advanced Institute for Soft Matter Science and Technology School of Emergent Soft MatterSouth China University of TechnologyGuangzhouGuangdong510640 China School of Materials Science and Hydrogen Energy Foshan UniversityFoshanGuangdong528000 China Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices South China University of TechnologyGuangzhouGuangdong510640 China

Comprehensive Summary With the rapid growth of soft electronic and ionotronic devices such as artificial tissues,soft luminescent devices,soft robotics,and human-machine interfaces,there is a demanding need to accelerate the development of soft ionic conductive *** date,the first-generation ionotronic devices are mainly based on hydrogels or ***,due to their intrinsic drawbacks,such as freezing or volatilization at extreme temperatures,and the leakage problem under external mechanical forces,the reliability of ionotronic devices under harsh conditions remains a great *** advent of liquid-free ionic conductive elastomers(ICEs)has the potentials to solve the issues related to the gel-type soft conductive *** free ions shuttling within the ion-dissolvable polymer network enable liquid-free ICEs to exhibit unparalleled ionic conductivity and ***,by tuning the composition and structure of the polymeric network,it is also feasible to integrate other desirable properties,such as self-healing ability,transparency,biocompatibility,and stimulus responsiveness,into liquid-free ICE *** this review,we summarize the design strategies of recently reported liquid-free ICEs,and further explore the methods to introduce multifunctionality,which originate from the rational molecular design and/or the synergy with other ***,we highlight the representative applications of liquid-free ICEs in soft *** is believed that liquid-free ICEs might provide a unique material platform for the next-generation ionotronics.

关键词： Liquid-free Elastomer lonic conductorSoft materials lonotronics

Linear operators and positive semidefiniteness of symmetric tensor spaces

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Science China Mathematics 2015年第1期58卷 197-212页

作者： luo zi Yan QI Li Qun YE Yin Yu State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University Department of Applied Mathematics The Hong Kong Polytechnic University Department of Management Science and Engineering Stanford University

We study symmetric tensor spaces and cones arising from polynomial optimization and physical *** prove a decomposition invariance theorem for linear operators over the symmetric tensor space,which leads to several other interesting properties in symmetric tensor *** then consider the positive semidefiniteness of linear operators which deduces the convexity of the Frobenius norm function of a symmetric ***,we characterize the symmetric positive semidefinite tensor(SDT)cone by employing the properties of linear operators,design some face structures of its dual cone,and analyze its relationship to many other tensor *** particular,we show that the cone is self-dual if and only if the polynomial is quadratic,give specific characterizations of tensors that are in the primal cone but not in the dual for higher order cases,and develop a complete relationship map among the tensor cones appeared in the literature.

关键词： symmetric tensor symmetric positive semidefinite tensor cone linear operator SOS cone