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。

和利时SOE超时报警因素简析

和利时DCS控制系统SOE是向双网全好的最小号控制站校时,机组正常运行期间部分SOE模块存在超时报警,在没有其他厂任何经验可以借鉴的前提下,工作人员通过对主从历史站切换、重启、下装、生效,控制器和通讯卡主从切换,交换机断电重启等现场大量测试验证,最终找到SOE模块超时报警的影响因素。

Contribution of Garcinia kola to the Productivity and Economic Profitability of the Community Agricultural Area of Kedougou: Financial and Comparative Analysis of Production Factors

Inland fishing predominates in the Kedougou region, which has no coastline. This type of fishing does not yet meet the local population’s demand for fish products. In response to this concern, a Community Agricultural Estate housing an integrated fish farm was set up in the commune of Bandafassi, in the village of Itato. Since its creation, this production unit has been faced with the problem of sourcing high-quality, low-cost, monosex male Oreochromis niloticus fry. In order to overcome this constraint, the present research focuses on the contribution of Garcinia kola to the productivity and economic profitability of the Itato farm. The aim of the research is to assess fish production in the experimental set-up and the production costs of tilapia in a controlled environment. The comparative study of the various production factors shows disparities only in the input factor, where scenarios 2 and 3 use additional products. These are 17-α-methytestosterone for scenario 2 and Garcinia kola for scenario 3. These products significantly interfere with fish production, with a fairly high mortality rate for scenario 2 (25% for two production cycles/ cohort2 (B5, B6, B7 and B8) treated with 17-α-methytestosterone). As for scenarios 1 and 3, mortalities are 5% with or without recourse to additional products (G. kola). In addition, average fish production for the three (03) scenarios is estimated at 28687.5 kg/2 cycles. It varies from one scenario to another, i.e. 30937.5 kg/2 cycles for scenarios 1 and 3 and 24187.5 kg/2 cycles for scenario 2. It is therefore higher in scenarios 1 and 3 than in scenario 2. This difference is due to the fairly large losses of individuals in scenario 2. Furthermore, the analysis of the profit and loss accounts for tilapia production varies from one scenario to another depending on the type of farm: 476 Franc CFA for scenario 1, 610 Franc CFA for scenario 2 and 472 Franc CFA for scenario 3 (F CFA = franc of the French Colonies of Africa). The Average operating income for all the fish farming units is 34,726,142 Franc CFA. The highest (41,638,075 Franc CFA) and lowest (29,281,075 Franc CFA) ERs were observed in scenarios 3 and 2 respectively. It was 33,259,275 Franc CFA for scenario 1. The difference between the NERs of the three scenarios is more or less significant in terms of results. The operating result (OR) is positive in all 3 scenarios in our study. However, the scenario 3 system generates a higher rate of return (the ratio between an income and the capital employed to obtain that income) (74%) than that generated by the scenario 1 system (69%). As for the scenario 2 system, it generates a lower financial return than the two previous systems (67%). Above all, this work made it possible to construct an approach that would make it possible to answer such a question by relying successively on various methods: a typology, according to the production factors involved in the operation of the Community Agricultural Estate fish farm.

Comparative Analysis of Profit Model of Typical Pharmaceutical O2O Enterprises in China

Objective To study the profit model of Chinese pharmaceutical O2O enterprises.Methods A case study of three typical pharmaceutical O2O enterprises was conducted,and their profit models were compared.Results and Conclusion The pharmaceutical O2O enterprises in China are divided into three categories according to the profit models.It is found that the current pharmaceutical O2O enterprises have problems such as simple profit model and low corporate profits.Based on these problems,it is recommended that relevant enterprises develop various business models to increase profit channels.Besides,they should establish and improve internal cost control systems.

Study inquires into widening profit-wage gap in SOEs

This paper studies the trend in which industrial enterprises’benefits allocation pattern changed,and the reasons for those rapid changes in China from 1997 to 2007.The results reveal that the benefits allocation pattern of industrial enterprises in China changed rapidly during the periods of 1998-2000 and 2003-2007.This paper discovers that the ramifications of state-owned enterprises’three-year reform plan,aimed at getting themselves out of a dire economic predicament,are the main reasons for the rapid changes in industrial enterprises’benefits allocation pattern from 1998 to 2000.The structural changes in ex-factory price of industrial products from 2003 were the main reason benefits allocation patterns of industrial enterprises changed in favor of capital during 2003-2007.

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

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.

Key sources of SOE profitability and their implications for social welfare

An analysis of the sources of profit growth for China's state-owned industry since 1999 indicates that the key source of profit growth is not the high productivity of state-owned enterprises (SOEs) but rather their monopoly position and pricing power in some basic industries. From an overall social perspective, such high profitability means an inefficient allocation of industrial resources and a potential loss of social welfare. Therefore, further expanding and deepening the reform of SOE property rights, encouraging the development of non-SOEs and boosting the competitiveness of basic industries will significantly improve the resource allocation efficiency of the Chinese industry and enhance overall social welfare.

Profits and Costs of the Development of Rural Cooperative Economic Organizations

Through analyzing the economic profits of rural cooperative economic organizations,the following conclusions are obtained.The rural cooperative economic organizations can get the economic profits which are in accordance with the demands of market-oriented economy.The rural cooperative economic organizations can benefit from sharing the knight service provided by the government;from reducing and avoiding various kinds of risks in operation and from applying the agricultural technology and standardization production.Besides,the organizations can share the profits bought along by the standardized production of agricultural production and their members can enjoy the profits bought by socialized service system.In addition,the rural cooperative economic organizations can enjoy the profits produced by the agricultural management integration strategy.What' more,they can increase profits by reducing the transaction costs;enlarging scale and enjoying the brand advantages.The analyses of the costs of the development of rural cooperative economic organizations mainly include the organizing costs,operation costs,restriction costs and cooperation costs.We think that the slow development of rural cooperative economic organizations is caused by their high operation cost and the impediment of external environment.In the end,the countermeasures on strengthening the research on the theory,promotion,education and training of rural economic cooperative organizations and intensifying the supports on the policies of rural economic cooperative organizations are put forward.

Industrial Profits Decreased in the First Ten Months of 2019

Import and export In January-October 2019,China’s total import and export value reached USD 3.74 trillion,with a decrease of 2.5%year-on-year (the same as below).The exports were USD 2.04trillion,with a decrease of 0.2%,and the imports were USD 1.70 trillion,with a decrease of 5.1%.The trade surplus was USD 340.29 billion,increasing by 34.9%.

Risk Neutral Options Based on Maximum Profits

This study uses risk-neutral-probability(RNP,thereafter)to forecast future excepted profits in copper,gold,and platinum group metals.The RNP measures are advantageous where ones want to compare values of the same asset in different states.At the heart of this study is using future profits based on a binomial tree,which has RNPs.Overall,RNP profits converge more to the future-normal profits.And,the robustness results based on the vector autoregressive(hereon,VAR)model reveal that the profits react differently to different shocks stages from revenues,risk-free interest rates and profits.The findings of this study apply to copper,gold,and platinum mining around the globe.

Analysis on the Relationship between Degree of Fragmentation and Production Profits of Arable Landscapes upon Varying Landforms——a Case Study of Xinjian County, Jiangxi Province

The research selected five indices to measure fragmentation degrees of three landforms with GIS and analyzed the relationship with production profits of arable lands. The results showed that fragmentation degree of arable lands tends to be volatile upon landforms, For example, the fragmentation degree of mountainous area reached 0.985, followed by hills of 0.705 and the fragmentation degree of plains was the least at 0.068. Production profits of arable lands were negatively correlated with arable landscape fragmentation. Hence, it is necessary to take measures to reduce landscape fragmentation as per specific local circumstances to imorove production Drofits.

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).

Empirical Research on Accounting Profits and Net Cash Flow of Chinese Public Companies ——Analysis Based on Profitability

In traditional analysis, enterprises＇ performance evaluation largely depends on profits indices, which results in the public companies＇ strong pursuit of accounting profits and neglect of net cash flow. It is of great significance to study this phenomenon in public companies for it can help to evaluate their profitability correctly. By making an empirical research on the status quo of the medical public companies＇ accounting profits, net cash flow, receivable and prepaid items, it is found that the phenomenon that the current accounting profits and net cash flow are inconsistent universally exists in the public companies; the current growth rates of accounts receivable, notes receivable, other accounts receivable and accounts prepaid in the companies which the phenomenon exists in are higher than those in other companies and the industrial average, especially for the latter two items; this phenomenon in economically developed areas is more obvious than in other areas. How to avoid the contradiction of accounting profits and net cash flow in the public companies？ Firstly, the credit risk awareness and management should be strengthened. Secondly, cash budget management should be enhanced. Finally, the index system of evaluation of the public companies＇ operating performance should be improved.

Economic Competition for High Profits from Antarctic Living Resources in Their Protection Area

Since 1790, Antarctic living resources were becoming subjects of competition among the exploiters to be first in obtaining the maximum profit from them. This led to subsequent extinction of valuable species from fur seals and next penguins, large through small whales, industrial demersal fish, further to pelagic species and now toothfish, crabs and krill. Catch proportions of their numerous and biomass decrease. The biomass of South Georgia Icefish estimated for 40 years in spide of decreasing trend has one of the largest components-the oscillations with periods of 3 years or 4 years. Their models explain large biomass fluctuations in the years 1975 to 1981 with amplitudes ±15 × 10^3 tonnes around average 20 ×10^3 tonnes and further decline up to 2005 season with oscillation ±4 ×10^3 tonnes around average 5 × 10^3 tonnes. For future season, 2016 model predicts a little increase of the biomass oscillation at level of 8 × 10^3 tonnes with reduced amplitude 2 × 10^3 tonnes. Slowly increase density of adult fish was also reported for target similar and close related mackerel icefish. Additional references for biomass levels help reduce the risk of further depletion biomass of Pseudochaenichthys georgianus which already declined to 75%. As global warming promote phytoplankton growth, replacing krill fishery by algae farms can save unique Antarctic heritages.