电力设备质量管理的思路

针对现有电力物资管理存在的诸多问题,从设备定型管理、招投标优化管理、监造管理、运行数据收集、事故与缺陷分析、责任划定、档案管理等方面探索提高电力设备质量管理的思路,从源头上保证入网设备运行的质量,实现电力物资优化管理,大大减少电网事故隐患。

提高电力设备质量管理的思路与方法分析

文章首先对电力设备质量管理的重要性进行阐述,针对现有电力物资管理存在的诸多问题,从设备定型管理、招投标优化管理、监造管理、运行数据收集、事故与缺陷分析等方面分析提高电力设备质量管理的思路,从源头上保证电力设备投运质量,实现电力物资优化管理,大大减少电网事故隐患。

电力设备质量管理提升方法分析

我国的电力市场发展状况良好,国家非常重视电力市场的发展,人们对电力设备的质量也有更高的要求。电力设备质量管理是现代电力市场发展过程中一个重要的内容,只有提高电力设备质量管理水平,才能使我国电力事业发展得更好。文章对我国电力设备质量管理的现状进行分析,提出了质量管理过程中存在的一些问题,并在此基础上提出了具体的电力设备质量管理思路与方法,希望对我国电力事业的发展有所帮助。

探究ERP技术对电力物资管理系统的作用

ERP是一种先进的管理思想和管理工具,它在电力物资管理系统中的应用可以大大提高电力物资管理的水平,减少不必要的问题产生。在ERP管理思想的指导下,电力企业的物资管理会朝着更为科学完善的方向发展,特别是在当前电力企业体制改革不断深入的今天,它对于电力物资管理系统所起到的作用更加重要,需要管理者予以重视。

物联网背景下优化电力物资寄售管理

随着近几年我国科学技术的快速发展，物联网技术得到了飞速发展，并且已经在很多行业得到了广泛应用。基于此，本文就对物联网背景下，电力物资寄售管理的优化措施进行深入分析和研究，以便能够在最大程度上提高我国电力物资库存管理，进而为相关行业的学者和工作人员在今后研究和工作过程中提供一定的帮助。

电力物资管理中的常见问题及解决手段

在市场经济逐渐发生变革与改变的情况下,电气企业也在全力寻找全新的发展道路。根据实际情况来讲,企业的发展、稳定运营与物质管理都有着非常直接的关系。但是在目前的电力企业中,物质管理方案已经无法满足时代的需求,所以需要在日常的运行过程中对管理方案进行逐渐的完善与创新。本文首先对电力企业实际的运营状态进行观察,之后对电力物质管理方法进行了深入的研究,并且找出了符合时代发展的重要方案,希望可以为电力事业稳定发展出一份微薄之力。

Adsorption Kineties of Pb￣(2+) and Cu￣(2+) on Variable Charge Soils andMinerals V .Effects of Temperature and Ionic Strength￣*1

The study results of the effects of temperature and ionic strength on the adsorption kineties of Pb￣2+ and Cu￣2+ bylatosol, red soil and kaolinte coated with Mn oxide showed that Pb￣2+ and Cu￣2+ adsorption by all samples, as awhole, increased with missing temperature. Temperature also increased both values of X_m (the amount of ionadsorbed at equilibrium) and k (kinetica constant) of Pb￣2+ and Cu￣2+. The activation energies of Pb￣2+ adsorption werekaolin-Mn >red soil>goethite and those of Cu￣2+ were latosol> red soil > kaolin-Mn >goethite. For a given singlesample the activation energy of Cu￣2+ was greater than that of Pb￣2+. Raising ionic strength decreased the adsorptionof Pb￣2+ and Cu￣2+ by latosol, red soil and kaolinite coated with Mn oxide but increased Pb￣2+ and Cu￣2+ adsorption bygoethite. The contrary results could be explained by the different changes in ion forms of Pb￣2+ or Cu￣2+ and in surfacecbarge characteristics of latosol, red soil, kaolin-Mn and goethite. Increasing supporting electrolyte concentration in-creased X_m and k in goethite systems but decreased X_m and k in kaolin-Mn systems. All the time-dependent data fit-ted the surface second-order equation very well.

Interaction of cetyltrimethylammonium bromide with drug in aqueous/electrolyte solution:A combined conductometric and molecular dynamics method study

Interaction between beta-lactum antibiotic drug ciprofloxacin hydrochloride(CFH)and cationic surfactant cetyltrimethylammonium bromide(CTAB)was performed conductometrically in aqueous as well as in the occurrence of different salts(NaCl,KCl as well as NH_4Cl)over the temperature range of 298.15–323.15 K at the regular interval of 5 K.CFH drug has been suggested for the treatment of bacterial infections such as urinary tract infections and acute sinusitis.A clear critical micelle concentration(CMC)was obtained for pure CTAB as well as(CFH+CTAB)mixed systems.The decrease in CMC values of CTAB caused by the addition of CFH reveals the existence of the interaction between the components and therefore it is the indication of micelle formation at lower concentration of CTAB and their CMC values further decrease in attendance of salts.A nonlinear behavior in the CMC versus T plot was observed in all the cases.The ΔG_m^0 values are found to be negative in present study systems demonstrated the stability of the solution.The values of ΔH_m^0 and ΔS_m^0 reveal the existence of hydrophobic and electrostatic interactions between CFH and CTAB.The thermodynamic properties of transfer for the micellization were also evaluated and discussed in detail.Molecular dynamic simulation disclosed that environment of water and salts have impact on the hydrophobic interaction between CFH and CTAB.In water and salts,CTAB adopts spherical micelle in which charged hydrophilic groups are interacted with waters whereas hydrophobic tails form the core of the micelle.This hydrophobic core region is highly conserved and protected.In addition,micelle formation is more favorable in aqueous Na Cl solution than other solutions.

Replacement of Diesel Generator Sets in Isolated Communities with More Efficient Biomass Combustion Process

Electrical power supply to communities isolated from urban areas is typically complex and expensive. Their geographical situation and the lack of infrastructure and qualified workforce impede the provision of electricity. Many are the sources of energy available, but few are appropriate or sustainable. Combustion of diesel fuel is a good technical solution; however, it is neither economic nor environmentally tenable. This paper presents the advantages of using biomass as an energy source, along with its potential increase in efficiency when steam is generated in specific circumstances of temperature and pressure.

Electronic-Positron （Pairino＇s） Structure of Nuclear Substance （Matter）

Decrease or enlargement of the number of pairinos in nuclei and as free nucleons, pairinos, electrinos, positpinos is a factor of destabilization in the matter and or environment. For the benefit of a electronic-positron structure the representations about an annihilation of the electronic-positron pairs, formation in substance electronic-positron of pairs under activity action of a gamma radiation, electronic and positron character of a beta radiation in nuclei are worked. Terminology： positrino, electrino, pairino. The new mechanism of a physical phenomenon, well explored to the present moment, with the conventional interpretation - mechanism of an annihilation of a free positron on electrons of substance is offered. That is the conventional point of view is those, that during annihilation the electron bums down, disappears or is transmuted into a gamma-quantum. In opinion of the author any facts or the proofs of such interpretation do not exist. The following mechanism therefore is offered： an electron and positron at coming together are discharged by two gamma-quantum and form pairino （unloaded electron - positron state with gravitational mass ＂m＂ about 2 eV, with compensation by electric charge, about an electrino by positrino interaction）; that is the mechanism ＂cold＂ （low, is less than 10 KeV, energies） synthesis of pairino. The given mechanism of phenomenon of annihilation is more realistic.

Research on Hybrid Renewable Energy Systems with Fault Detection Technology

Early and accurate fault detection and diagnosis for renewable energy systems can increase their safety and ensure the continuity of their service. This paper presents a comprehensive review of different fault detection and diagnosis methods for hybrid renewable energy systems consisting of a wind turbine power generator, a PV （photovoltaic） array, a PEM （polymer electrolyte membrane） fuel cell and a battery storage system. The need of batteries to store the generated power from the solar panel, wind turbine or PEM fuel cell is also emphasized. Finally, an overview of the current methods used in the diagnosing of the lead-acid battery degradation is given.

Proof of Concept of a Novel PEM Fuel Cell Stack Design with Hydraulic Compression

In this study, a novel design concept for PEMFC （polymer electrolyte membrane fuel cell） stacks is presented with single cells inserted in pockets surrounded by a hydraulic medium. The hydraulic pressure introduces necessary compression forces to the membrane electrode assembly of each cell within a stack. Moreover, homogeneous cell cooling is achieved by this medium. First, prototypes presented in this work indicate that, upscaling of cells for the novel stack design is possible without significant performance losses. Due to its modularity and scalability, this stack design meets the requirements for large PEMFC units.

Action mechanism of octylic hydroxamic acid on diaspore

The conventional collector for diaspore mineral is oleic acid,which is highly insoluble and must be used in high dosage in bauxite flotation,that is the great drawback of oleic acid in use.Octylic hydroxamic acid was synthesized,and its collecting ability to certain minerals in bauxite:diaspore and kaolinite were studied.The collecting power of various reagents to diaspore in an incremental sequence was shown as follows:oleic acid<octylic hydroxamic acid,while the incremental sequence of the collecting power to kaolinite was like this:octylic hydroxamic acid < oleic acid.It could be seen that octylic hydroxamic acid had the capability of high collectivity and good selectivity,and octylic hydroxamic acid was chosen to use in the following experiments.Reduced zeta potential showed the adsorption of the anionic collector on the mineral.By the adsorptive capability and IR(infrared ray)tests,the adsorption of octylic hydroxamic acid on diaspore was determined to be chemical absorption,which was greater than that of oleic acid,as it was absorption by hydrogen bond.

物联网条件下的电力物资库存管理优化分析

本文首先对库存管理、物联网、物联网技术应用的供应链进行了客观的阐述,然后对电力企业中的库存管理中的问题进行了讨论,同时对信息技术在电力企业库存管理中的应用做了一定的描述,为物联网的电力企业库存管理做好的铺垫工作,希望本文给出的信息能够帮助到更多的同行学者和工作人员。

电力物资管理中的若干问题分析及对策构建

在支撑我国电力事业发展过程中,是需要对电力物资的管理问题有所分析的.从需求拉动供给的内在逻辑出发,还需要搞清楚电力施工与电物资管理之间的动态协作关系.梳理现阶段的有关文献发现,许多作者似乎忽视了在动态视域下来看待这一电力物资管理问题.

Quantum precision measurement of two-dimensional forces with 10^(-28)-Newton stability

High-precision sensing of vectorial forces has broad impact on both fundamental research and technological applications such as the examination of vacuum fluctuations and the detection of surface roughness of nanostructures.Recent years have witnessed much progress on sensing alternating electromagnetic forces for the rapidly advancing quantum technology-orders of magnitude improvement has been accomplished on the detection sensitivity with atomic sensors,whereas such high-precision measurements for static electromagnetic forces have rarely been demonstrated.Here,based on quantum atomic matter waves confined by a two-dimensional optical lattice,we perform precision measurement of static electromagnetic forces by imaging coherent wave mechanics in the reciprocal space.The lattice confinement causes a decoupling between real-space and reciprocal dynamics,and provides a rigid coordinate frame for calibrating the wavevector accumulation of the matter wave.With that we achieve a stateof-the-art sensitivity of 2.30(8)×10^(-26) N/√Hz.Long-term stabilities on the order of 10^(-28) N are observed in the two spatial components of a force,which allows probing atomic Van der Waals forces at one millimeter distance.As a further illustrative application,we use our atomic sensor to calibrate the control precision of an alternating electromagnetic force applied in the experiment.Future developments of this method hold promise for delivering unprecedented atom-based quantum force sensing technologies.

Effect of total phosphorous pollution on cavitation pressure characteristics of working water used in turbines

Many experiments have proven that with increasing silt and gas(out-of-phase media)content in water,the cavitation characteristics change and the cavitation pressure increases.Currently,many large reservoirs in China are polluted by total phosphorus(TP)and other chemical contaminants because of the use of phosphate fertilizer runoff from agriculture.However,research regarding how chemical pollutants(in the form of out-of-phase media)affect the cavitation pressure characteristics of water is sparse.In this paper,the Goupitan Hydropower Station,the largest hydropower reservoir on the Wujiang River,which is heavily polluted by TP,is taken as an example to evaluate the effects of chemical pollution on water cavitation pressure characteristics.In this study,the cavitation pressure characteristics of polluted and clean water are compared.The results show that the cavitation pressure of water polluted by chemicals is larger than that of clean water.In a hydraulic power generation system,cavitation and cavitation erosion are likely to occur earlier in runners when the fluid is polluted.These results are of great importance to further studies of cavitation theory and can directly influence the arrangement of turbines in practical engineering.

Artificial cathode solid electrolyte interphase to endow highly stable lithium storage of FeF_(2) nanocrystals

Iron difluoride(FeF_(2))is considered a highcapacity cathode material for lithium-ion batteries.However,its specific capacity and stability are limited by the poor electrochemical kinetics of conversion reactions.Herein,the conversion reaction is confined in a localized nanosized space by encapsulating FeF_(2) nanoparticles in polymer gelatin.The FeF_(2) nanocrystal-coated polyvinylidene fluoride-based layer(defined as Fe F_(2) @100%G-40%P)was synthesized by glucoseassisted in-situ gelatinization to construct an artificial cathode solid electrolyte interphase via a solvothermal process.Thanks to the improved kinetics of the localized conversion reaction,the obtained FeF_(2) @100%G-40%P electrodes show good cyclic stability(313mAhg^(-1) after 150 cycles at 100 mAg^(-1) ,corresponding to a retention of 80%)and a high rate performance(186.6 mAhg^(-1) at 500 mAg^(-1)).

Correlating gravitational waves with W-boson mass,FIMP dark matter,and Majorana seesaw mechanism

We study a minimal extension of the standard model by introducing three right-handed neutrinos and a new scotogenic scalar doublet,in which the mass splittings between neutral and charged components are responsible for the W-boson mass newly measured by the CDF Collaboration.This model can not only generate non-vanishing Majorana neutrino masses via the interaction of right-handed neutrinos and scotogenic scalars,but also explain the Universe’s missing matter in the form of FIMP dark matter.We also study the influence of the mass splitting on the first order electroweak phase transition,and find that it can further enhance the transition strength and thus induce gravitational waves during the phase transition,which may be detected in the forthcoming detectors such as U-DECIGO.