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Horizontal Mergers between Asymmetric Low-Carbon Manufacturers

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Journal of Systems Science and Systems Engineering 2022年第5期31卷 619-647页

作者： Xiaogang lin Kangning Jin Wenhui fu Qiang lin School of Management Guangdong University of Technology Guangzhou 510520China School of Economics and Management South China Normal UniversityGuangzhou 510006China

Mergers have become an important means for low-carbon manufacturers to improve their efficiency and *** paper studies the impact of horizontal mergers between asymmetric low-carbon manufacturers on product diversity,profits,consumer surplus,and the *** the premerger model,we consider two asymmetric manufacturers in terms of market potential that produce two products and compete on prices and carbon *** the postmerger model,the two asymmetric manufacturers merge into one *** merged manufacturer can either continue to produce two products and collude on both products'prices and carbon emissions or enjoy both production and green technology investment cost savings to produce only one *** result suggests that when the merged manufacturer produces two products,the merger does not necessarily lead to higher prices,which stands in sharp contrast to the conventional ***,the merger always benefits the manufacturer but harms *** the merged manufacturer chooses to produce only one product,however,we confirm that the merger can lead to a win-win-win outcome,i.e.,the manufacturer,customers,and environment all become better off if either the production or investment savings are *** conventional wisdom shows that salient costing savings lead to price ***,we show that the merged manufacturer can charge consumers higher prices to provide lower-emission *** addition,we show that improving investment(production)cost savings is more effective for the merged manufacturer if these two cost savings are salient(not salient).Finally,the merged manufacturer should not reduce diversity if these two cost savings are relatively low because the profit and consumer surplus may be simultaneously *** also extend our base model to the case where there exist three manufacturers in the premerger model and the merged firm still operates in a competitive market.

关键词： Game theory asymmetric horizontal merger low-carbon manufacturing price and emission collusions productionand investmentcost synergies

Quasi-periodically Forced Logistic Map with Weak Liouvillean Frequency

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Acta Mathematica Sinica,English Series 2024年第10期40卷 2411-2435页

作者： Jin Hao LIANG lin lin fu Department of Applied Mathematics Nanjing Forestry UniversityNanjing 210037P.R.China School of Mathematics and Statistics Shaoguan UniversityShaoguan 512005P.R.China

Consider a class of quasi-periodically forced logistic maps T×[0,1]■:(θ,x)→(θ+ω,c(θ)x(1-x))(T=R/Z),whereωis an irrational frequency and c(θ)is a specific bimodal *** prove that under weak Liouvillean condition on frequency,the strange non-chaotic attractor occurs with negative Lyapunov *** extends the result in[Bjerklov,CMP,2009].

关键词： Quasi-periodically forced logistic map strange non-chaotic attractor weak Liouvillean frequency Lyapunov exponent

Joint Continuity of Lyapunov Exponent for Finitely Smooth Quasi-periodic Schrodinger Cocycles

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Acta Mathematica Sinica,English Series 2021年第7期37卷 1131-1142页

作者： Jin Hao LIANG lin lin fu Department of Applied Mathematics Nanjing Forestry UniversityNanjing 210037P.R.China Department of Mathematics Sun Yat-sen UniversityGuangzhou 510275P.R.China

We prove the joint continuity of Lyapunov exponent in the energy and the Diophantine frequency for quasi-periodic Schrodinger cocycles with the C^(2)cos-type *** particular,the Lyapunov exponent is log-Holder continuo... 详细信息

关键词： Schrodinger cocycle Lyapunov exponent C^(2)cos-type potential

The Existence of a Meridional Curve in Closed Incompressible Surfaces in fully Alternating link Complements

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Chinese Annals of Mathematics,Series B 2024年第1期45卷 73-80页

作者： wei lin School of Mathematical Sciences Dalian University of TechnologyDalian 116024LiaoningChina

Menasco showed that a closed incompressible surface in the complement of a non-split prime alternating link in S^(3) contains a circle isotopic in the link complement to a meridian of the *** on this result,he was able to argue the hyperbolicity of non-split prime alternating links in *** et *** that if F■S×I\L is an essential torus,then F contains a circle which is isotopic in S×I\L to a meridian of *** author generalizes his result as follows:Let S be a closed orientable surface,L be a fully alternating link in S×I\If F ■ S×I\L is a closed essential surface,then F contains a circle which is isotopic in S×I\L to a meridian of L.

关键词： fully alternating Incompressible surfaces Meridionally incompressible

General mechanism of spider toxin family I acting on sodium channel Nav1.7

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Zoological Research 2022年第5期43卷 886-896页

作者： fu-Chu Yuan fu-De Sun lin Zhang Biao Huang Hai-Long An Ming-Qiang Rong Can-wei Du National&Local Joint Engineering Laboratory of Animal Peptide Drug Development College of Life SciencesHunan Normal UniversityChangshaHunan 410006China Key Laboratory of Molecular Biophysics Hebei ProvinceInstitute of BiophysicsSchool of Health Science&Biomedical EngineeringHebei University of TechnologyTianjin 300401China Chengdu Pepbiomedical Co. Ltd.ChengduSichuan 610219China

Various peptide toxins in animal venom inhibit voltage-gated sodium ion channel Nav1.7, including Nav-targeting spider toxin(NaSpTx) Family I. Toxins in NaSpTx Family I share a similar structure, i.e., Nterminal, loops 1–4, and C-terminal. Here, we used Mu-theraphotoxin-Ca2a(Ca2a), a peptide isolated from Cyriopagopus albostriatus, as a template to investigate the general properties of toxins in NaSpTx Family I. The toxins interacted with the cell membrane prior to binding to Nav1.7 via similar hydrophobic residues. Residues in loop 1, loop 4,and the C-terminal primarily interacted with the S3–S4 linker of domain II, especially basic amino acids binding to E818. We also identified the critical role of loop 2 in Ca2a regarding its affinity to *** results provide further evidence that NaSpTx Family I toxins share similar structures and mechanisms of binding to Nav1.7.

关键词： Spider Nav1.7 Peptide toxin ICK motif

Time-resolved ESI-MS Investigation on Reduction and Alkylation in Unfolding Process of Lysozyme

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Chemical Research in Chinese Universities 2001年第4期17卷 387-393页

作者： SONG Hao-wei XU Chong-feng fu Yun-lin YANG Peng-yuan WANG Hong-hai Department of Chemistry State Key Laboratory of Genetic Engineering Fudan UniversityShanghai 200433P.R.China

The kinetic procedure of the unfolding of lysozyme induced by the reduction of disulfide was monitored by the time-resolved ESI-MS with a sheath liquid assistant electrospray interface. It was found that the reduction process for the eight disulfides had a less difference in the reaction time after denatured treatment. In addition, the alkylation of the reduced free thiols was much slower than the reduction procedure. An artifact peak produced by the CID fragmentation in the mass spectra was identified and the possible mechanism of the Hofmann elimination reaction was proposed.

关键词： Unfolding Lysozyme Reduction and alkylation Time-resolved ESI-MS

Preparation and Rheological Characterization of Long Chain Branching Polyglycolide

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Chinese Journal of Polymer Science 2024年第8期42卷 1177-1184页

作者： wei-lin Liu Ming-fu Lyu Heng-Yuan Zhang Jian-Ye Liu Shi-Jun Zhang Beijing University of Chemical Technology Beijing 100029China SINOPEC(Beijing)Research Institute of Chemical Industry Co. Ltd.Beijing 100013China

The long chain branching(LCB)polyglycolide(PGA)was successfully prepared by the successive reactions of the terminal hydroxyl groups of PGA with triglycidyl isocyanurate(TGIC)and pyromellitic dianhydride(PMDA).The influence of LCB produced by functional group reaction on rheological and crystallization behavior was studied and discussed through linear rheology,uniaxial elongation and DSC(differential scanning calorimetry).The much higher viscosity and the more notable strain hardening behavior of modified PGA indicates the LCB with high degree of entanglements are *** melt strength of PGA is finally improved greatly and can make su re that the supercritical CO_(2)foaming can be carried out successfully.

关键词： Polyglycolide(PGA) Long chain branching(LCB) Rheology

A Survey on Distributed Network Localization from a Graph Laplacian Perspective

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Journal of Systems Science & Complexity 2024年第1期37卷 273-293页

作者： HAN Zhimin lin Zhiyun fu Minyue Artificial Intelligence Institute School of AutomationHangzhou Dianzi UniversityHangzhou 310018China Shenzhen Key Laboratory of Control Theory and Intelligent Systems School of System Design and Intelligent ManufacturingSouthern University of Science and TechnologyShenzhen 518055China Peng Cheng Laboratory Shenzhen 518000China

Network localization serves as a fundamental component for enabling various position based operations in multi-agent systems,facilitating tasks like target searching and formation control by providing accurate position information for all nodes in the *** localization focuses on the challenge of determining the positions of nodes within a network,relying on the known positions of anchor nodes and internode relative *** the past few decades,distributed network localization has garnered significant attention from *** paper aims to provide a review of main results and advancements in the field of distributed network localization,with a particular focus on the perspective of graph *** to its favorable characteristics,graph Laplacian unifies various network localization,even when dealing with diverse types of internode relative measurements,into a unified protocol framework,which can be constructed by a linear method and ensure the global convergence.

关键词： Distributed network localization graph Laplaian sensor network

Asymptotic Tracking Control for Wind Turbines in Variable Speed Mode

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IEEE/CAA Journal of Automatica Sinica 2017年第3期4卷 569-576页

作者： wei lin Zongtao Lu wei wei Dongguan University of Technology Dongguan 523808China Department of Electrical Engineering and Computer Science Case Western Reserve University

This paper presents a variable speed control strategy for wind turbines in order to capture maximum wind *** turbines are modeled as a two-mass drive-train system with generator torque *** on the obtained wind turbine model,variable speed control schemes are *** tracking controllers are designed to achieve asymptotic tracking for a prescribed rotor speed reference signal so as to yield maximum wind power *** to the difficulty of torsional angle measurement,an observer-based control scheme that uses only rotor speed information is further developed for global asymptotic output *** effectiveness of the proposed control methods is illustrated by simulation results.

关键词： Asymptotic tracking partial-state and output feedback two-mass drive-train model variable speed control wind turbines