ATP车载设备型式管理体系及方法研究

ATP车载设备型式试验涉及到从系统设计到商业运营前的所有测试,包括功能试验、接口型式试验、互联互通试验3个阶段。对每个阶段出现的问题需要进行闭环跟踪,及时制定整改措施,在上一个阶段的问题回归后可进行下一阶段的型式试验测试。ATP车载设备在通过所有测试项后具备全功能要求,满足全路运行的条件。通过对ATP车载设备型式管理需求的分析,搭建管理信息系统,使用基于V-型回归方法实现不同阶段功能测试的分步监控,实现不同类型车载设备型式试验的闭环管理。

电子计价秤的型式控制和型式管理研究

本文结合电子计价秤产品质量的现状、型式控制和型式管理的重要性以及当前型式管理中存在的一些问题,提出如何进一步做好电子计价秤的型式控制和型式管理的一些设想,旨在提高我国电子计价秤的产品质量,供同行参考。

ATP车载设备型式管理体系及方法研究

ATP车载设备型式试验包含的内容众多,涵盖从系统设计到商业运营前所有的测试内容。测试工作开展过程中,必定会受到众多不良因素的影响,导致测试结果的准确性较差。相关技术人员需要对测试中存在的不良问题进行深入分析,积极的找寻有效的措施进行改善,为后续测试工作的有效开展奠定良好基础。ATP车载设备在经过测试之后,设备的功能更加俱全,运行更加具备稳定性。本文就是对ATP车载设备型式管理体系及方法进行深入研究,希望对相关技术人员有所启示。

ATP车载设备型式管理体系及方法研究

ATP车载设备型式试验包含的内容众多,涵盖从系统设计到商业运营前所有的测试内容。测试工作开展过程中,必定会受到众多不良因素的影响,导致测试结果的准确性较差。相关技术人员需要对测试中存在的不良问题进行深入分析,积极的找寻有效的措施进行改善,为后续测试工作的有效开展奠定良好基础。ATP车载设备在经过测试之后,设备的功能更加俱全,运行更加具备稳定性。本文主要对ATP车载设备型式管理体系及方法进行深入研究,希望对相关技术人员有所启示。

Logistics Cost Management Models and Their Usability for Purchasing

In many compames, cost management models are abandoned due to their complexity and because of this, the academic literature has experienced a downturn in publications regarding cost management. This paper deepens the understanding regarding the practical usability of cost management models for purchasing decisions, and provides a framework for determining a desired complexity of cost management in different purchasing environments. The complexity is defined along three dimensions identified in literature and the different purchasing environments stem from an adaptation of Kraljic＇s （1983） matrix.

Developing a mathematical assessment model for blasting patterns management: Sungun copper mine

Blasting is one of the most important operations in the mining projects that has effective role in the whole operation physically and economically. Unsuitable blasting pattern may lead to unwanted events such as poor fragmentation, back break and fly rock. Multi attribute decision making(MADM) can be useful method for selecting the most appropriate blasting pattern among previously performed patterns. In this work, initially, from various already performed patterns, efficient and inefficient patterns are determined using data envelopment analysis(DEA). In the second step, after weighting impressive attributes using experts' opinion, elimination Et choice translating reality(ELECTRE) was used for ranking the efficient patterns and recognizing the most appropriate pattern in the Sungun Copper Mine, Iran. According to the obtained results, blasting pattern with the hole diameter of 15.24 cm, burden of 3 m, spacing of 4 m and stemming of 3.2 m has selected as the best pattern and has selected for future operation.

Full 2D Hydrodynamic Modelling of Rainfall-induced Flash Floods

Mountain catchments are prone to flash flooding due to heavy rainfall. Enhanced understanding of the generation and evolution processes of flash floods is essential for effective flood risk management. However, traditional distributed hydrological models based on kinematic and diffusion wave approximations ignore certain physical mechanisms of flash floods and thus bear excessive uncertainty. Here a hydrodynamic model is presented for flash floods based on the full two-dimensional shallow water equations incorporating rainfall and infiltration. Laboratory experiments of overland flows were modelled to illustrate the capability of the model. Then the model was applied to resolve two observed flash floods of distinct magnitudes in the Lengkou catchment in Shanxi Province, China. The present model is shown to be able to reproduce the flood flows fairly well compared to the observed data. The spatial distribution of rainfall is shown to be crucial for the modelling of flash floods. Sensitivity analyses of the model parameters reveal that the stage and discharge hydrographs are more sensitive to the Manning roughness and initial water content in the catchment than to the Green-Ampt head. Most notably, as the flash flood augments due to heavier rainfall, the modelling results agree with observed data better, which clearly characterizes the paramount role of rainfall in dictating the floods. From practical perspectives, the proposed model is more appropriate for modelling large flash floods.

Attack Resistant Trust Management Model Based on Beta Function for Distributed Routing in Internet of Things

With the rapid development of Internet of Things (IoT),the issue of trust in distributed routing systems has attracted more research attention.The existing trust management frameworks,however,suffer from some possible attacks in hostile environments,such as false accusation,collusion,on-off,and conflicting behavior.Therefore,more comprehensive models should be proposed to predict the trust level of nodes on potential routes more precisely,and to defeat several kinds of possible attacks.This paper makes an attempt to design an attack-resistant trust management model based on beta function for distributed routing strategy in IoT.Our model can evaluate and propagate reputation in distributed routing systems.We first describe possible attacks on existing systems.Our model is then proposed to establish reliable trust relations between self-organized nodes and defeat possible attacks in distributed routing systems.We also propose a theoretical basis and skeleton of our model.Finally,some performance evaluations and security analyses are provided to show the effectiveness and robustness of our model compared with the existing systems.

The factors that affect the participation of social organizations in pension service are analyzed

At present, the aging situation of China＇s population is becoming more and more serious. By the end of 2016, there were 231 million people over the age of 60 in China, accounting for 16.7% of the total population. About 150 million people aged 65 and over make up 10.8 percent of the total population. China is expected to enter the peak period of population aging by 2035. Therefore, the government as a single pension service main body management pattern already can not adapt to our country entered the aging society, mobilize and fostering social organizations to participate in the pension services is to build perfect endowment service system, satisfy people pension service demand model of a kind of indispensable. In view of the development of social organizations has just started in our country, there exist many problems and difficulties, so this article USES the ISM method, for social organizations to participate in research and analyze influence factors of pension services, and then find out the social organization in the process of participation in pension service problems, put forward effective solutions.

Dynamic Modeling of Tubular SOFC for Marine Power System

Solid oxide fuel cell (SOFC) has been identified as an effective and clean alternative choice for marine power system.This paper emphasizes on the dynamic modeling of SOFC power system and its performance based upon marine operating circumstance.A SOFC power system model has been provided considering thermodynamic and electrochemical reaction mechanism.Subcomponents of lithium ion battery, power conditioning unit, stack structure and controller are integrated in the model.The dynamic response of the system is identified according to the inertia of its subcomponent and controller.Validation of the whole system simulation at steady state and transit period are presented, concerning the effects of thermo inertia, control strategy and seagoing environment.The simulation results show reasonable accuracy compare with lab test.The models can be used to predict performance of a SOFC power system and identify the system response when part of the component parameter is adjusted.

Discussion on Application of Green Financial Management in the Enterprise

In this new century, the new green economy growth development pattern is gradually raised. As the expanding of development background, green management pattern has gradually been listed in many enterprises. This allows companies to conduct exploration deeply, and takes advantage of sustainable development of the green economy plans; so as to make the call of national energy-saving emission to be responded, environment-friendly and resource-saving society to be constructed, also can make the healthy and green corporate culture to be created.

The Practical Application of Lean Management Model to the Production and Operation of China＇s Small and Medium- sized Apparel Enterprises

In this paper, the prospect and advantages of applying prospect and advantages to the production and operation of China＇ s small and medimn-sized apparel enterprises, the main waste parts in the apparel production and operation process are systematically analyzed, an efficient production, management, and operation model meeting the characteristics of the small and medium-sized apparel enterprises is explored according to the solutions in lean management, and also the technical transformation in the key positions is fully implemented, so that the production efficiency of the sewing workshop is improved, the bottlenecks of the backward production management way to restrict the development of enterprises are broken, the vitality of the enterprises is restored, and also significant economic and social benefits are achieved.

Research on Training Mode and Mechanism of Economic Management Talents of ＂Innovation-Entrepreneurship Type＂

Innovation is an inexhaustible motive force for the prosperity of a country. Only make full use of creative thinking, can society have a substantial development. Cultivating innovative and entrepreneurial talents for the society is an inescapable mission of colleges and universities. Entrepreneurship and innovation are conducive to China’s enterprises in many aspects of structural optimization. Talents with certain innovation ability can meet the requirements of social development. The colleges and universities are important bases for cultivating innovative talents which take it as a strategic task to cultivate innovation-entrepreneurship type talents. Nevertheless, most of the colleges and universities do not pay attention to innovation and entrepreneurship education and the teaching institutions should actively reform, and make full use of advanced information technology and train innovative talents. In this paper, we discuss the importance of training mode and mechanism of economic management talents with innovation-entrepreneurship type, and we put forward the direction of innovation and entrepreneurship education, at the same time, an innovative management mechanism should be established.

Development Research of Zhejiang Small and Medium Enterprises＇ Management mode

Zhejiang Small and medium enterprises have had major achievements adapting to the trend of economic development and it encountered bottlenecks. During the development process, there are malpractices, such as the parent wind, system＇s lacking of science, epitaxial growth, excessive dependence on the international market, and ineffective management mode. Based on the central economic work conference, changing management and enterprise strategy adjustment are inevitable choices of Zhejiang small and medium-sized enterprises＂ management mode development.

Tourism Human Resources Development and Management Model Analysis

Human resources are the core of business development, the competition of modem enterprises, in the final analysis is the talent competition, which is the human development level of competition. Scenic spot enterprise view service quality as their development lifeline, rely entirely on high-quality staff to achieve, tourist attractions enterprise has its particularity industry： labor-intensive enterprises, but different from other manufacturing and other labor-intensive enterprises, They have high quality requirements for comprehensive employee quality, and therefore human resource development, compared with other enterprises, is more important and more challenging.

Internet of Things for Demand Side Management

The introduction of new kinds of energy mixes to the electricity grid is a challenging environmental task for present and future generations as they fight the pollution and global warming issues associated with urbanization. Individual appliances and whole buildings that continuously incorporate local intelligence which originates from the new technologies of Internet of Things are the new infrastructure that this integration is based on. Smart Electricity Grids are becoming more intensively integrated with tertiary building energy management systems and distributed energy generators such as wind and solar. This new smart network type harnesses the loT （lnternet of Things） principles by generating a new network made of active elements combined with the necessary control and distributed coordination mechanisms. This new self-organized overlay network of connected DER （distributed energy resources） allows for the seamless management and control of the active grid as well as the efficient coordination and exploration of single and aggregated technical prosumer potential （generation and consumption） to participate in energy balancing and other distributed grid related services, applying energy management strategies based on control and predict of the DERs behavior for facing demand side management issues.

JJG 443-2023《燃油加油机检定规程(试行)》解读(一)

文章对JJG 443-2023《燃油加油机检定规程(试行)》的修订背景、修订的主要技术依据和原则、修订的主要内容进行了详细阐述,旨在指导检定人员正确理解并执行该规程。

Detector control system for Daya Bay Reactor Neutrino Experiment

The Daya Bay Reactor Neutrino Experiment is to measure the smallest mixing angle θ13.The experiment contains three major experiment halls,Daya Bay near site,Linao near site and far site,and two major kinds of detectors,antineutrino detector which is to detect the antineutrinos by the inverse beta-decay reaction in Gd-LS,and muon detector which is to study and reject cosmogenic backgrounds.The goal of the detector control system(DCS)is to operate and detect the detectors and keep them running in safety.In consideration of the limited fund of this system and manpower of working on this system,the LabVIEW is chosen to develop the detector control system.The architecture of DCS adopts the distributed data management which is based on client-server model.The server part is to detect and operate parameters from hardware,save data to database and release data to clients,the client is to receive data from the server.The detector control system contains three parts:the hardware part,the local control system and the global control part.The local control system includes high voltage supply system,low voltage supply system,VME crate system,temperature and humidity system,gas pressure system,and so on.

River management system development in Asia based on Data Integration and Analysis System(DIAS) under GEOSS

This paper introduces the process of development and practical use implementation of an advanced river management system for supporting integrated water resources management practices in Asian river basins under the framework of GEOSS Asia water cycle initiative （AWCI）. The system is based on integration of data from earth observation satellites and in-situ networks with other types of data, including numerical weather prediction model outputs, climate model outputs, geographical infor- mation, and socio-economic data. The system builds on the water and energy budget distributed hydrological model （WEB-DHM） that was adapted for specific conditions of studied basins, in particular snow and glacier phenomena and equipped with other functions such as dam operation optimization scheme and a set of tools for climate change impact assess- ment to be able to generate relevant information for policy and decision makers. In situ data were archived for 18 selected ba- sins at the Data Integration and Analysis System （DIAS） of Japan and demonstration projects were carded out showing poten- tial of the new system. It included climate change impact assessment on hydrological regimes, which is presently a critical step for sound management decisions. Results of such three case studies in Pakistan, Philippines, and Vietnam are provided here.

A two-dimensional subthreshold current model for strained-Si MOSFET

An analytical model for the subthreshold current of a strained-Si metal-oxide-semiconductor field-effect transistor (MOSFET) is developed by solving the two-dimensional (2D) Poisson equation and the conventional drift-diffusion theory. Model verification is carried out using the 2D device simulator ISE. Good agreement is obtained between the model's calculations and the simulated results. By analyzing the model, the dependence of current on the strained-Si layer strain, doping concentration, source/drain junction depths and substrate voltage is studied. This subthreshold current model provides valuable information for strained-Si MOSFET design.