锂离子电池动态特性对倾转式eVTOL飞行性能的影响

为准确分析倾转式电动垂直起降飞行器(eVTOL)飞行剖面的变化和锂离子电池的动态特性对飞行性能的影响,结合锂离子电池等主要部件特性建立电动系统模型,提出考虑电池动态特性的eVTOL飞行器性能计算方法,并应用所提出的性能方法对锂离子电池动态特性的影响进行分析,提炼eVTOL飞行器对电能的需求规律。示例飞行器性能仿真表明,锂离子电池动态特性对动力系统功率产生影响,使悬停垂降时电池输出功率密度仅为垂起悬停阶段的78%;同时影响巡航性能,使巡航末段单位能耗航时和航程相比于起始段减少16%和17%。

Performance Evaluation and Pseudo-Conservation Laws in Token Ring Network with Batch Arrivals and Limited Services

This paper,using pseudo-conservation laws in cyclic-service systems, derives some expressions for the weighted sum of the mean waiting time token ring networks with exhaustive limitedservice policies on condition that messages arrived with batch Poisson, and discusses boundary conditions. At the same time, the results of the token ring network with exhaustive and non-exhaustiveservice strategy are obtained. Finally the exact expression of mean waiting time in symmetric ringnetwork with same service strategy is given.

Analysis on the Problems of Agent Performance in Administrative Law

With the rapid development of modem social politics and economy,agent performance has been a need of the People's Republic of China's administrative law enforcement and the public.Its form is relatively mild,and it is the product formed in the field of modem administrative law enforcement.The contemporary agent performance system has been playing an important role in environmental protection and traffic safety,which can save administrative costs to a certain extent,improve the efficiency of law enforcement,as well as effectively protect the legitimate rights and interests of the obligee.In spite of this,agent performance in China's administrative law has gained a lot of space for development,but there are many aspects that still need continuous development and improvement such as the subject,procedure,and cost of agent performance.This article focuses on the issue of agent performance as well as analyzes the subject,procedure,and cost of agent performance in administrative law of the People's Republic of China in aiming to promote the development of agent performance in administrative compulsory law of the People's Republic of China.

Certainty,Justice and the Law of Agency in the Chinese Civil Code:A View from England

The new Chinese rules on agency do not impose broad“fiduciary”duties on agents—instead,there are a number of specific provisions designed to protect the principal against particular abuses to which it is peculiarly vulnerable in the principal/agent relationship.Chinese law,thus,deliberately refuses to follow the lead of English law,which imposes very strict and wide-ranging fiduciary duties on agents.This paper argues that this is probably wise.English law has to be seen against a matrix of a system of commercial law which was forged on the anvil of international trade and commodity supply contracts,leading to a set of rules that prefer certainty of outcomes(and the avoidance of litigation)overachieving particular justice in individual cases(such as might have been achieved by subjecting English law to an overarching“good faith”principle).English commercial law is adversarial,not cooperative.This explains why,in a relationship that is characterized by cooperation,such as the principal/agent relationship,the general rules of English commercial law are replaced by wide,justice-oriented rules.A system that is already based on cooperation,for which Chinese law is almost paradigmatic,is likely much more adept at applying the general rules to the agency relationship than English law would be.

Fiduciary Duties in Company Law:A German Perspective

As Chinese practitioners and scholars ponder the scope of fiduciary obligations under the country’s company law,this paper offers a comparative perspective from German law.Although German corporate law has not rejected legal transplants,the common law trust has never been accepted as an organizational device for administering third-party funds or doing business.Nonetheless,the German judiciary has developed a sophisticated concept of fiduciary obligations where the statutes remain silent.This paper explores the application of fiduciary obligations to limited partnerships,limited liability companies,and stock corporations.It takes a membership perspective to ascertain the legal relationships between a corporation and its shareholder-members and among fellow-shareholders,as business entities evolve from personalistic to capitalistic settings.Fiduciary obligations also inform the relationship between the corporation and its directors and corporate officers.Although German law does not classify directors and corporate officers as the shareholders’direct trustees,shareholders stand nonetheless to benefit from the way directors and corporate offices discharge their duties towards the respective corporate entities.Moreover,criminal law rules on embezzlement operate to protect the corporation and the monies it administers from overly risky business projects.

基于Hamilton系统理论的直流配电系统镇定控制

随着分布式发电及电动汽车的大规模接入,直流配电系统中的随机因素日益增加,直流源荷设备的随机性扰动以及交流线路参数、滤波电容参数的不确定性都会影响到系统的稳定性。建立了直流配电系统随机动态模型,提出了基于Hamilton系统理论的随机稳定控制方法,设计了预反馈控制律及镇定控制器,搭建了仿真及实验系统,并对比了加入镇定控制器前后的系统动态特性及稳定性,仿真和实验结果表明,所设计的镇定控制器能够抑制随机扰动产生的振荡现象,提高系统的动态特性及稳定性。

The Relationship between Size and Performance of Palestinian Water Service Providers

Studies investigating the relationship between size and performance of water service providers are abundant. Yet, this relationship has not been fully addressed in Palestinian water sector, particularly, after the issuance of water law 2014 which calls for merging water providers into large regional utilities. This research evaluates the significant effect of the size of Palestinian water service providers on non-revenue water, staff productivity, collection efficiency, average consumption, average price, operating and maintenance cost, working ratio, and gross profit. The multivariate analysis shows that there are significant differences in working ratio, non-revenue water, staff productivity, average price, and gross profit based on the size. On the other side, no significant differences have been found in average daily consumption, operating and maintenance cost per unit, and collection efficiency based on those providers’ size. The small service providers perform better in non-revenue water, staff productivity, and collection efficiency;wherein, large service providers are more profitable than small service providers. Implications of these findings by conducting further studies will add the value for better merging of the Palestinian water providers and the reforming process.

Some Thoughts on the Characteristic Performance Test

As an approach to the interpretation of the closest connection doctrine used for years in the European continent for the choice of the law appliable to contractual relations as well as non-contractual ones,the characteristic performance test evolves with the development of international economic and trade activities.Despite criticisms on this approach as embodied in the Rome Convention,the RomeⅠRegulation retains it.This article will focus on the development of the characteristic performance theory and try to explain that this theory,as one of the interpretations and solutions to the closest connection doctrine universally accepted nowadays,has its strengths and weaknesses.

Intertextuality of Translations Into and From Judaeo-Arabic as a Transformative Platform in Jewish-Arabic Universalism:The Case of Legal Monographs of the Late Geonim

In medieval times,translators of Judaeo-Arabic literature living in Islamic lands were fluent in Arabic as this was the lingua franca and,in many cases,their mother tongue.This is only rarely the case for the contemporary scholar.This creates enormous challenges for the modern translators of their works.However,this challenge is an opportunity to bridge cultural and historical gaps by increased accuracy the hallmark of modern scholarship.This interdisciplinary discourse establishes the co-religious Dasein.The research tools which demand knowledge not only of Jewish sources but rather of Islamic texts allow for greater appreciation of contacting influences.Rav Y.al-Barceloni of the 12th century,among others,translated into Hebrew several works of the Geonim with his own halakhic interpretations,interpolations,and expansions.When scholars come today to comprehend anew,these compilations they paradoxically are more reflective of the original text than scholars of the middle ages who were contemporaneous with these texts.Nonetheless insofar as the translations are into Hebrew,they produce insular affect on the cultural product,leaving it within the Jewish fold.This fact forces scholars who desire to communicate with the broader audience to publish their results in European languages.In mediaeval studies,this is not as often as one thinks.

General Provisions of the Civil Law and Commercial Legislation: Consensus, Problems and Options——Taking Commercial Agency as an Example

In the context of the codification of China's Civil Code, the academic consensus has been to make commercial legislation systematic and establish commercial norms with proper legislative expression. Many direct and indirect commercial norms in General Provisions of the Civil Law provide evidence that civil law has been turned into commercial law. However, a general overview shows that the absence of related norms, including agency in duty, reveals that General Provisions of the Civil Law is lacking commercial law's characteristics. In addition to the Civil Code, using General Rules of Commercial Law is a relatively reasonable choice for commercial legislative arrangements, such as norms in relation to agency in duty. Taking commercial agency as an example, legislators should adopt problem-oriented and limited systematic patterns of "residue law" instead of unified patterns of codification.

Extended trajectory shaping guidance law considering a first-order autopilot lag

To satisfy the terminal position and impact angel constraints,an optimal guidance problem was discussed for homing missiles. For a stationary or a slowly moving target on the ground,an extended trajectory shaping guidance lawconsidering a first-order autopilot lag（ ETSG L-C FAL） was proposed. To derive the ETSG L-C FAL,a time-to-go- nth power weighted objection function was adopted and three different derivation methods were demonstrated while the Schwartz inequality method was mainly demonstrated.The performance of the ETSG L-C FAL and the ETSG L guidance laws was compared through simulation.Simulation results showthat although a first-order autopilot is introduced into the ETSG L-C FAL guidance system,the position miss distance and terminal impact angle error induced by the impact angle is zero for different guidance time.

On the Duty of the Government to Safeguard the Right to Water

The right to water is an emerging sort of human rights aiming to protect the right to water indispensable for the survival and development of individuals. From the perspective of International Human Rights Law, the paper analyzes the standards stipulating the international obligations to safeguard the right to water, inspects the state quo of the protection of the right to water in China and demonstrates the lawful suggestions to safeguard the right to water.

Simulation research on dynamic performance of the new type high-pressure solenoid valve

To improve energy density,the transportation,storage,and operations of hydrogen,methane,and compressed air vehicles currently require high-pressure compression.High-pressure solenoid valve becomes the vital element to above system.In order to reduce leakage and aerodynamic force influence,a new type high-pressure solenoid valve was proposed.The simulation model which included electromagnetic model,aerodynamic force model was established by means of the nonlinear mathematic models.Using the software MATLAB/Simulink for simulation,the dynamic response characteristics of high-pressure pneumatic solenoid valve were obtained under different pulse width modulation(PWM)input control signals.Results show that,first of all,the new type of high-pressure solenoid valve can meet the switch requirement.Secondly,the opening movement and closing movement of the spool lags the PWM rising signal,and the coil current fluctuates significantly during the movement of the spool.Lastly,on/off status of high-pressure valve cannot be represented by the duty cycle.This research can be referred in the design of the high-pressure solenoid valve..

公司法上信义义务的体系构成——兼评新《公司法》相关规定

信义义务起源于信托法上的受托人义务,在普通法系衡平法传统影响下,其在英美等国的适用早就超越了信托法范畴,成为公司法领域通用的原则。无论是从“委托—代理”视角,还是信托关系视角来看,公司法制度引入信义义务理论都有必要。董、监、高之所以对公司负有信义义务,是因为他们在公司担任特定职务,与公司存在特定的法律关系,“公司利益至上”是其信义义务的内核。新《公司法》构建了较为完整的信义义务规则体系。在控股股东与实际控制人实际履行董、监、高职能的情况下,他们的行为后果对于公司利益的影响与董、监、高并无差异,理应对公司负信义义务;同时完善信义义务的例外和救济条款,增加了对全资子公司的“双重股东代表诉讼”制度。

公司濒临破产时董事破产申请义务的立法建构

公司濒临破产时已经或者即将失去债务清偿能力,此时的经营风险将由股东向债权人进行转移。董事破产申请义务是助力债权人应对上述风险的重要支点,因为这一制度能够有效地遏制股东、董事以及债权人内部的机会主义行为,防止公司资产的持续恶化。在学理上,“直接义务论”和“间接义务论”都可以为其立法建构提供逻辑支持,前者强调当公司濒临破产时董事对债权人直接承担信义义务,后者则认为此时董事依然对公司整体承担信义义务,但是应在决策中重点考量债权人利益。从我国公司治理实践来看,也有推进该制度立法建构的现实需求,包括平衡认缴资本制对法定资本规则的弱化、弥补破产程序启动规制的不足、顺应董事会中心主义治理模式的发展以及填补公司法与破产法之间的制度缝隙等。无论是德国和奥地利对该制度的明确规定,还是美国的“加深破产理论”与英国的“不当交易条款”等功能性替代规定,都能够为我国的立法提供参考。就具体的本土方案而言,可以“直接义务论”为指引,将该制度嵌入破产法体系之中。同时,围绕董事破产申请义务触发条件的界定、董事破产申请义务启动主体构成边界的明晰、董事破产申请义务限制期限的规制、董事破产申请义务中重整程序的融入、董事违反破产申请义务的责任承担以及董事违反破产申请义务的债权人追诉机制等相关内容,建构系统化的具体规则。

环境规制影响企业税收规避吗?--基于新《环保法》实施的准自然实验

作为重要的命令控制型环境规制工具,新《环保法》实施对企业经营产生了广泛的影响。以2010-2020年我国A股上市公司为样本,利用新《环保法》这一外生冲击事件,采用双重差分模型检验环境规制对企业税收规避的影响。结果表明,环境规制趋严促使企业提高税收规避程度。机制检验表明,环境规制导致企业融资约束程度和经营风险增加。进一步分析发现,环境规制与税收规避的正相关关系主要存在于融资难度较高和经营压力较大的企业,新《环保法》实施情境下的企业避税行为提升了财务业绩和企业价值。研究结论提供了微观企业如何应对宏观环境规制的经验证据,为政府部门结合税收政策优化环境政策提供了参考。

能源法的法权构造及其体系展开

能源法的核心范畴界定较为模糊,亟待澄清。基于能源权利与能源权力的交互性、能源公益与能源私益的均衡性、能源监管与能源市场的协调性等需求考量,法权可作为能源法的核心范畴。能源法法权结构可从本体论、运行论和价值论三个层面予以构造,形成体系化安排。本体论上,应以公民能源权利与国家能源权力的交互为基础,强调公民能源权作为法权结构的逻辑起点、以落脚为能源普遍服务的能源权力作为法权结构的基本保障;运行论上,应以能源合同作为法权结构运行的具体承载;价值论上,应以能源正义作为法权结构价值的最终目的。由此,可仰仗能源法的法权结构构筑能源法学体系。

行政公益诉讼中行政机关履职标准判断——以安全生产领域案件为考察对象

安全生产事故引发社会各界对检察院在安全生产领域提起公益诉讼的重点关注。对安全生产领域公益诉讼行政机关履职审查基准进行专门研究具有必要性,如何判断行政机关是否依法履职是当前检察公益诉讼实践公认的难题,当前多以“行为标准”“结果标准”和“复合标准”进行讨论。鉴于安全生产事故的严重危害性,在判断行政机关是否履行职责时,应重点从其客观上是否阻碍危害结果发生或是否遏制潜在危害源的视角出发,从其是否调尽行政资源方面进行审查,以此构建修正“行为-结果”判断标准,结合安全生产领域公益诉讼法律本质、宗旨及功能,不断改进完善行政机关整体履行职责的判断基准。

信义义务体系化设计的公司法方案

新修订的《公司法》极大地完善了勤勉义务、忠实义务的内涵及外延,但仍缺乏对信义义务的一般规定,这导致信义义务的理据不足,使得司法适用中存在诸多困难,主要体现在忠实义务与勤勉义务的类型分化不足、违信责任路径紊乱以及认定标准不清晰。为厘定信义义务的基本范畴,应当构建“一般条款+具体规则”的信义义务体系。具言之,设置信义义务的一般条款统摄、充实忠实义务与勤勉义务的具体规则,整合禁止权利滥用和合规经营义务规则,以阐明信义义务体系化的必要性与正当性,实现信义义务的体系化构建。

重大职务犯罪案件审判的内在结构与法治逻辑

重大职务犯罪案件审判是当今中国反腐败工作的重要组成部分。相较于普通刑事案件审判,重大职务犯罪案件审判在办案衔接、审判权归属、审判组织综合管理和最高人民法院具体指导等方面具有独特的运行特征,由此决定这类案件内部审判结构有着以下基本特性:内部审判组织架构的综合性,审判程序规范的适度灵活性,审判运行方式的安全有效性,审判形式上的严格性。在尊重重大职务犯罪案件审判内在固有结构的基础上,仍需从审判权力结构的调整、被告人基本诉讼权利的有效保障、庭前会议和庭审要素的把握和审判方式的灵活运用等方面,建构案件审判的法治逻辑,以体现审判应有的司法属性和程序价值。