基于AUKF的可穿戴式设备用锂离子电池SOE在线估计方法

可穿戴式设备(wearable devices,WDs)体积小、工作时间长,在工业监测等领域应用越来越广泛。锂离子电池为WD上电子设备提供能量,其准确的能量状态(state of energy,SOE)在线估算对WDs的电源实时管理与延长设备寿命有重要影响。传统的基于模型的估算方法需要离线获取SOE与开路电压(open circuit voltage,OCV)的关系,实验时间长,不能适应实际工况变化,难以在线实施,本工作提出一种基于开路电压(opencircuit voltage,OCV)在线辨识的可穿戴式设备用锂离子电池SOE在线估算方法。首先基于锂离子电池的一阶RC模型,采用带遗忘因子的递推最小二乘法(forgetting factor recursive least squares,FFRLS)在线辨识电池OCV等参数。分析了WDs运行负载变化特征,构建了WD运行工况和参数辨识工况,并开展锂离子电池实验。结合WDs工作负载特性,研究了开路电压和端电压的关系,在线获得OCV与SOE的关系曲线。采用无迹卡尔曼滤波(adaptive unscented Kalman filter,AUKF)算法实现SOE的在线估计,与传统通过离线实验获得OCVSOE关系的方法进行了对比。研究结果表明,所提的SOE在线估算方法具有较好的精度,并在不同的SOE初始值时具有较好的鲁棒性。

How ＂New SOEs＂ Come of Age： Four Decades of China＇s SOE Reform

China＇s complex and twisted journey of SOE reform over the past four decades is an unprecedented transformation in its history and is at the center stage of its economic reforms. Over the past four decades, SOEs transitioned from being affiliates of a planned economy to ＂new SOEs＂ as modern enterprises under the market economic system. This journey can be roughly divided into the following four stages： the reform to expand SOE autonomy during 1978-1993, the reform to create a modern enterprise system during 1993- 2003, the reform to create a new system for the administration of state assets during 2003- 2013, and the new era of classified SOE reform since 2013. After the four stages, China＇s SOE reform has made tremendous achievements, particularly since the 18th CPC National Congress. V~th policy readiness for SOE reform in the new era, reform should be carried out in a comprehensive and systematic manner for different types of SOEs in the future.

基于ArcGIS SOE的GPS与高速公路里程桩号转换服务实现

GIS技术是高速公路管理工作向现代化、科学化、智能化发展的必要辅助手段之一,GPS定位坐标与高速公路里程桩号之间的转换是高速公路可视化管理的重要基础内容^([1])。利用ArcMap的线性参考工具实现对高速公路空间数据的处理与修正,并基于ArcGIS SOE开发了GPS与高速公路里程桩号的转换服务。利用该服务,用户通过手机定位即可快速准确地转换为里程桩号(细化至车道),也可将里程桩号转换为空间数据叠加至地图中进行数据展示,在高速公路管理信息系统中具有广泛的应用空间。

New Restructuring Model for Chinese M&S SOEs:A Case of Executive Holding Major Capital Stock

The reform for Chinese state-owned enterprises (SOEs)during the past twenty years selected several ways which couldn't solve essential problems and improve the performance of the SOEs in China. The reason is that traditional ownership instituton wasn't changed at all,the institution reach an impasse in market system which resulted in the fact that SOEs couldn't get used to keen competition. This paper analyses an ownership restructuring case in which an executive holds major capital stock in a state textile institute restructured and therefore the state ownership was withdrawn from it completely, it expounds the rationality of the model selected and points out that the model is currently a very effective way by which M & S SOEs would withdraw from competitive business field successfully.

Effective Incentive and Discipline Mechanisms for Top manage-ment in SOEs

Key to energize State-Owned-Enterprises (hereinafter SOEs) is to set up effective incentive and discipline mechanisms. First of all, the paper analyses the problems existing in the current incentive and discipline mechanism system in SOEs, including low transparency income and considerable covert income, insider control,corporate governance nominalization and so on; next,the paper explores the causes behind these problems,such as incomplete corporate governance and imperfect market mechanism; finally, the paper proposes a series of solutions from the aspects of incentive mechanism and discipline mechanism.

The Claim that “SOEs Are Inefficient” Is Unfounded

This paper paints out that historical factors and ’high withdrawal barriers’ are to blame for some low indices of SOEs.Supposing SOEs can withdraw freely as non.SOEs do,their indices will not necessarily be lower than the non-SOEs.If we take into account the input of the current period,the efficiency of SOEs is actually higher than that of non-SOEs.The author concludes that the notion that"SOEs are inefficient"is ungrounded and instead that historical factors and ’high withdrawal barriers’ are to blame for some low indices of SOEs.

The Steel Backbone of China’s SOEs

ANSTEEL,one of the largest iron and steel producers in China,is a pioneer of high-quality development of China’s iron and steel industry,a spearhead of the rejuvenation of old industrial bases in the country’s northeastern provinces,and a pacesetter in the reform of state-owned enterprises(SOEs).

Analysis on auditing problems in SOEs joint share system reform

At the present stage of the SOEs joint share system reform, the problem of distorted accounting information, the failed financial audit and the ensuing erosion of the state： Owned assets, have severely impeded the process of the SOEs reform. This paper conducts an in-depth analysis on auditing problems in the process of the SOEs reform from managerial points of view, makes the suggestion that we should introduce governmental audit into the auditing supervision of the SOEs reform, and discusses its methods, approaches, contents and procedures in detail. This paper also indicates the possible obstacles of implementing this suggestion.

China’s Central SOEs’ Corporate Social Responsibility Performance under the BRI

How are central SOEs driven by external context and internal value chain to perform their corporate social responsibility(CSR)?What is the relationship between various types of CSR?This paper divides CSR into strategic and responsive CSR,and uses case studies to discuss how central SOEs should fulfill their CSR commitments under the Belt and Road Initiative(BRI).This paper finds that under the BRI,China’s central SOEs face a host of challenges in their cross-border operations with respect to the legal environment,political risks,workforce competence,and supports to industries in host countries,and extend the value chain through industrial chain integration.All the above internal and external attributes may drive central SOEs to perform their strategic and responsive CSR initiatives,and responsive CSR could also reinforce strategic CSR initiatives.Finally,this study offers advice on how Chinese companies should perform CSR under the BRI.

Central SOEs and State-owned Assets Management System Witness Great Reform&Development

Since the beginning of 2005, the central SOEs (state-owned enterprises) earnestly carried out and put into effect various strategies and policies as well as work plans of the Central Committee of the Party and the State Council.They kept forging ahead and carved out in an innovative spirit, and made great achievements worth celebrating in their various work.Both sales revenue and total profits of the central SOEs have been growing rapidly and synchronously, and the quality of the stateowned assets have been further improved and appeared a good momentum.……

SOEs to Face Market Competition

ACCORDING to an Economic Information Daily report on January 11, notable progress has been made in this classification process, which will be made public in the near future. A corresponding assessment scheme has also been formulated, Consequently, mixed ownership reform based on SOE classification will be accelerated.

基于HIL仿真平台的电动汽车SOE在线估计研究

本文基于硬件在环(HIL)仿真对电动汽车SOE在线估计进行研究。首先基于dSPACE平台搭建了以锂电池为硬件的HIL仿真平台。然后分析了电动汽车动力电池剩余能量(SOE)的计算方法,并为此在Simulink环境下建立了2阶Thevenin等效电路电池模型和包含汽车动力学模型、驾驶员模型、电机模型三部分的整车模型。接下来借助RTW和RTI软件平台完成编译和代码的转换,将上述Simulink仿真模型作为HIL平台的控制逻辑上传到dSPACE实验系统中。综合以上工作,实现了由HIL平台控制真实锂电池在电动汽车NEDC和WLTP混合工况下作为电池组电芯进行充放电,并实时采集和监控真实电池的电流电压数据。最后基于该HIL仿真平台的在线运行,以均方根误差(RMSE)为评价标准实时地调试优化动态参数模型、算法,完成了对电池SOE在线估计的研究。

债务展期、期限结构与企业创新

企业创新需要持续稳定的资金支持,但中国企业融资主要依赖的银行贷款却是以短期贷款为主,故债务展期对企业创新的影响尤其值得关注。利用2007年银行贷款展期政策调整的准自然实验,本文实证研究发现:(1)银行收紧贷款展期政策后,原本更依赖短期贷款的企业创新活动不仅未有减少,反而明显增加,专利申请和发明专利申请数量平均增长了近28%。(2)渠道检验显示,银行收紧贷款展期后,原本更依赖短期贷款的企业显著增加了长期贷款且债务融资成本并未显著提高,面临的融资约束程度明显降低,无形资本投资明显增加。(3)异质性检验结果显示,上述现象仅出现在大企业和国有企业,这可能是因为大企业和国有企业有较强的贷款谈判能力。总之,本文的研究结论表明,银行收紧贷款展期使企业从短期贷款转向长期贷款,融资稳健性的提升有利于企业创新,但在此过程中要特别重视可能对民营中小企业的不利冲击。

国有企业负责人经营业绩考核:制度特征分析与指标维度优化

业绩考核制度是落实企业责任、激发企业活力,并由此推动经济社会运行的重要机制。在对比股东主导和市场主导两种业绩考核逻辑,分析、认知国有企业负责人经营业绩考核制度的基础上,探究了业绩考核制度的本质特征,即国有企业负责人经营业绩考核制度是一项以考核为抓手的产权管理体系,是以目标设定与过程管理为核心的“自驱式”机制设计。强调应唯经营(而非考核)出业绩,并且正向激励与风险容错是业绩考核赋能企业发展的重要属性。现行业绩考核指标体系还难以引导国有企业高质量发展,建议围绕“产业布局、经营生态、创新驱动、风险管理、财务收益”五个维度进一步优化国有企业负责人经营业绩考核指标,且以年度考核为核心,形成导向明确、相对稳定、可预期的考核指标体系,并赋予企业负责人一定的自由裁量权,以提高考核制度效果,助力中国经济高质量发展。

SOEs’ performance to be evaluated by profitability and social contributions

The global financial crisis has brought stateowned enterprises (SOEs) into the spotlight. Even Western countries like the U.S. have been forced to take some measures of nationalization, a departure

SOEs urged not to profit by crowding out private economy

Hu Deping,68,is the oldest son of Hu Yaobang,a late Party secretary general. His name has recently appeared in the press not because of his father’s reputation but for his own

国企混改、公司治理与企业绩效研究

发展混合所有制经济是深化新时期国企改革的重点。基于公司治理视角,系统分析国企混改对企业绩效的影响机制,以2010—2022年全部沪深上市国有企业数据为样本,采用固定效应模型、中介效应模型及双重差分模型分析引入战略投资者这一混改方式对国有企业公司治理和企业绩效的影响。实证结果表明:国企混改有利于提升企业绩效;公司治理在国企混改对企业绩效的影响中能够起到部分中介传导作用。进一步研究发现,国企混改政策的推行本身对于企业绩效有积极的政策效应;国企混改对企业绩效的影响效果在央企和地方国企、竞争性行业和垄断性行业里均有所不同。因此,政府应发挥引导和监管作用,深化国资国企改革,推动国有企业与民营资本合作共赢,战略投资者也应积极响应国家政策,助力国资民企合作共赢。

国有企业工资溢价与形成机制

本文基于三轮中国企业雇主—雇员匹配数据追踪调查(CMEELS)数据,采用分位数回归和反事实分解方法,对2017—2021年国有企业工资溢价及其形成机制进行探究。研究发现:这段时期国企相对于非国企存在工资溢价,工资溢价主要集中在中高收入层次上,形成国企工资溢价的主要原因是国企和非国企间的劳动力市场分割。进一步分析表明,在高工资水平上,女性和农村户口持有者等群体在非国有企业受到了工资歧视,因此上述群体中存在较大的国企工资溢价。据此本文建议未来应坚持劳动力市场化改革方向,有针对性地打破国企和非国企之间的劳动力市场分割,加强对就业歧视行为的约束,提高中国劳动力市场运行效率。

能源型央企青年科技人才队伍建设的路径与建议

能源型央企是国家战略科技力量的重要组成部分,迫切需要发挥科技引领能源高质量发展作用,亟须培养一批具有旺盛科研精力和高度创新力的青年科技人才队伍。本文深入分析新时代加强能源型央企青年科技人才队伍建设的重要意义,以某一能源型央企下属科研单位作为调研对象,深刻剖析能源型央企青年科技人才培养存在的问题,进而提出加强青年科技人才队伍建设的系统性思路以及可以采取的管理创新和激励措施。

SOE-PCR法合成狂犬病毒单链抗体基因Fv57

目的:通过一系列短引物拼接合成狂犬病毒糖蛋白单链抗体基因Fv57。方法:采用SOE-PCR的方法,利用多条短的寡核苷酸引物,经过6轮PCR,拼接合成800bp左右的狂犬病毒糖蛋白单链抗体基因Fv57,并利用此方法修正了上述PCR过程中产生的多处突变,从而获得正确的单链抗体基因序列。结果:采用SOE-PCR法合成的基因序列经测序及酶切鉴定,与预期结果一致。结论:成功地利用SOE-PCR法合成了狂犬病毒糖蛋白单链抗体基因Fv57,为其下一步构建原核表达载体,在大肠杆菌中进行表达奠定基础。