螺旋板稳定性分析和计算

基于经典线弹性稳定理论建立了有定距柱支承螺旋板稳定性分析的力学模型,推导了计算临界压力的理论公式并给出了工程算例,提出了一些对工程设计有益的结论。     

喷射器一维设计理论的研究进展

主要概述气体喷射器一维设计理论研究的近期进展,分别介绍了定压混合理论、定常面积混合理论及其实验研究情况,最后提出了作者的一些展望。     

浅谈煤炭生产企业消耗量定额的编制与应用

从企业定额概念出发分析了当前煤炭生产企业定额编制的现状,从企业定额编制的理论分析与实务探索两方面进行了研究,进而对煤炭企业定额编制的作用及管理提出了一些建议,希望能对以后企业定额的编制及管理提供一些借鉴.     

浅谈燃气轮机的控制

结合现代控制理论对燃气轮机控制过程中的一些问题进行了阐述,并对今后的发展提出了看法。分别讨论了燃气轮机的控制问题,频域设计方法,开环最优控制和自适应控制等。     

内燃机振动的隔离

本文对内燃机振动的单层隔振、双层隔振以及主动控制隔振做了详细理论综述和较全面地技术评价，并提出了主动隔振控制的一些措施。     

内燃机振动的隔离

本文对内燃机振动的单层隔振、双层隔振以及主动控制隔振做了详细理论综述和较全面地技术评价，并提出了主动隔振控制的一些措施。     

中国规划环境影响评价发展现状与存在问题分析

分析当前规划环境影响评价发展现状并着重对其存在的一些问题进行探讨,从理论技术方法和人才队伍建设方面提出建议.     

汽轮发电机组振动故障诊断应用技术的发展现状

介绍了当今汽轮发电机组振动故障诊断技术在诊断理论、方法、实际系统的研制、开发和应用方面的国内外概况,并对国内在这项技术发展中的一些具体问题进行了讨论,提出了相关的建议.参17.     

FMS中加工误差智能建模与预报技术

针对柔性加工过程的特征，提出了基于神经网络的加工误差智能在线建模预报的方案和一些关键技术，并对其进行了初步研究，同时，对小波变换和分形理论在预报建模中的应用作了分析和探讨。     

关于静压复得法的理论探讨

针对传统静压复得法在理论及应用上存在的问题，进行了较为深入的理论探讨，从而不仅获得了一些有价值的结论，而且提出了静压复得新算法，还给出计算例题。     

亚临界锅炉集箱水压试验工艺

本文主要阐述了亚临界锅炉集箱水压试验的难度及解决方案 ,如集箱上小管接头、大管接头密封问题 ,集箱上三通、弯头、敞口集箱的密封问题 ,水压试验场地问题 ,集箱水压后三通、弯头、敞口集箱的机加问题 ,制造成本和生产周期问题。此项研究的成功 ,使我公司的集箱制造水平有了很大的提高 ,保证了所有集箱焊缝不泄露 ,使我公司的产品质量进一步得到用户的认可     

静电纺丝法制备硅碳纳米纤维及其在锂钠离子电池中的应用

静电纺丝法由于具有工艺简单、功能多样等优点,是一种重要的制备一维锂钠离子电池纳米结构电极材料的方法。目前,已有大量利用静电纺丝技术制备高性能电极材料的研究报道,但具有系统性和针对性的综述论文尚十分有限。碳材料是最早被研究且已实现商业化的锂离子电池负极材料,硅材料则是理论容量最高的负极材料,因此,两者一直是学术界和工业界关注的重点;但碳材料理论容量低和硅材料体积变化大的问题严重阻碍了各自更广泛的实际应用。静电纺丝技术被证明是一种可以解决上述问题的十分有效的方法。因此,本文系统地综述了静电纺丝法制备的硅基和碳基纳米纤维在锂钠离子电池负极材料上的应用和发展,重点从静电纺丝原理、硅碳材料的设计及合成、结构的调控与优化、复合材料的制备到电化学性能的提高等方面作了详细介绍和讨论,同时也指出静电纺丝法在大规模生产中的不足及未来可能的发展方向。希望此综述可以为先进储能材料（尤其是硅基和碳基纳米电极材料）的设计和制备提供一些有益的指导和帮助。     

The energy ecology derived from thermodynamic mass equivalence reveals critical energy reliability faults

The recent articulation of the thermodynamic mass-enthalpy equation on the basis of natural law was generalized and found to be compatible with observed wave-particle duality. Original causal derivations of premiere energy equations were obtained in a compact, interlocked manner, an energy ecology, which unifies historically disjointed physical concepts. The popular perception of the vacuo velocity of light was demoted to subconsequence status as a manifestation of the universal constant velocity found by extracting the square root of the universal proportionality constant between enthalpy and mass, the natural registry of which is given by the thermodynamic equivalence statement. All relationships with explicit vacuo light velocity connotations are affected. In particular, the classic formulae of Einstein, Planck, De Broglie and Compton are too. For the first time, an unambiguous natural law based method for performing absolute and coordinated mass and enthalpy balances is described. The methodology reveals the general presence of unexpected mass and enthalpy shortfalls in well studied systems wholly consistent with the existence of a novel fundamental particle. Dubbed the Avogadron, it has properties beyond and can function as both a companion to and a constituent of the entire inventory of known particles. As such, it represents a supraparticle, the first discovered, which appears to be the ultimate parcel of energy and matter with a universal presence in all processes and conversions. A sampling of the Avogadron's importance and applications is presented. The overall study revealed an enormous run of energy reliability conundrums which affect current science, technology and general practice. Popular expositions of thermodynamic law are shown to be misleading and prone to error. The fields of nuclear energy, medicine, genetics and weights and measures seem to be critically impacted. An international program for establishing definitive hierarchical energy codes, re-educating and re-qualifying personnel, conducting in-depth reliability assessments and implementing indicted correctives constitutes an immediate and dire imperative.     

克拉玛依百口泉油田地层水化学特征与油气成藏关系

石油（天然气）与地层水是一对孪生姐妹，油气的生成、运移、聚集、保存和散失都是在地层水的环境里或是在地层水的参与下进行的。地层水运动是油气运移聚散的动力和载体，其化学成分直接或间接地反映出油气赋存的环境与条件。地层水与油气在地质历史进程中的活动是相瓦依存、制约的因果关系。从水文地质观点和角度研究油气水的演化．剖析水一油相互作用的关系，掌握地层水对油气藏形成和分布的作用，同时利用地层水的某些离子特征和特征系数来反映油气的保存条件、地层的封闭程度、油气的运移规律。研究油田水文地球化学的目的在于寻找不同水文地质条件下油气运聚的水化学特征及其变化规律，而后利用水化学的变化特征来寻找有利的油气聚集带。因此研究不同地区不同层系的油田水文地质。也是寻找油气藏的一种方法，可为油气勘探提供依据，直接为生产服务。同时也是进行含油气远景评价的必备基础。     

加氢工艺对异构基础油性质的影响

在微反装置中,考察了反应温度和液时空速(LHSV)对加氢裂化尾油(HTO)、减四线油(VGO)加氢异构基础油性质的影响。通过气相色谱(GC)/质谱联用仪(MS)方法,对HTO、VGO加氢异构产品的族组成和碳数分布进行表征,结果表明:HTO和VGO均可作为通过加氢异构工艺生产APIⅡ+类基础油的原料。基础油的黏度指数随空速的降低而降低,随反应温度的升高而降低。基础油馏分中正构烷烃基本消失,说明所用催化剂具有良好的异构性能,基础油倾点随空速的降低而降低,随反应温度的升高而降低。原料的裂化反应程度随空速的降低而升高,随反应温度的升高而升高。通过族组成分析,推断出对基础油的产品性质发生影响的主要因素有:正构烷烃的异构化反应,异构烷烃的二次异构反应,单、双环化合物的支链异构反应,单、双环化合物的环压缩异构反应,多环烷烃化合物部分开环反应,芳烃化合物加氢饱和和开环反应。此外,加氢裂化反应也可改善产品的低温流动性能,但会损失目的产品收率。     

Effects of poly(vinyl alcohol) and poly(acrylic acid) on interfacial properties and stability of compound droplets

Polymer shells, as the container of deuterium and tritium fuels, are indispensable parts for preparing the target in the inertial fusion experiments and the future inertial fusion energy plants. It is important to ensure the stability of the corresponding compound droplets, the precursor of these polymer shells. The selection of surfactants is crucial in the preparation of the compound droplets due to their important role on the stability of the compound droplets. In this paper, the effects of the concentrations of the poly (vinyl alcohol) (PVA) and the poly (acrylic acid) (PAA), and their molecular weights on the bulk and interfacial properties, as well as the relationship between the properties and the stability of the compound droplets were investigated. Moreover, the mechanisms of the PVA and the PAA preventing the coalescence and the rupture of the compound droplets were also discussed. Lower interfacial tension and higher bulk viscosity benefited reducing the risk of the rupture and the coalescence. The interfacial dilational viscoelasticity (elastic modulus, viscous modulus and phase angle) also showed an important influence on the rupture and the coalescence. This work provides a more comprehensive understanding of the coalescence and the rupture, and gives some practical advices on selecting optimal concentration of the surfactant and its molecular weight, benefiting the preparation of stable compound droplets.     

Recent progress in alkaline water electrolysis for hydrogen production and applications

Alkaline water electrolysis is one of the easiest methods for hydrogen production, offering the advantage of simplicity. The challenges for widespread use of water electrolysis are to reduce energy consumption, cost and maintenance and to increase reliability, durability and safety. This literature review examines the current state of knowledge and technology of hydrogen production by water electrolysis and identifies areas where R&D effort is needed in order to improve this technology. Following an overview of the fundamentals of alkaline water electrolysis, an electrical circuit analogy of resistances in the electrolysis system is introduced. The resistances are classified into three categories, namely the electrical resistances, the reaction resistances and the transport resistances. This is followed by a thorough analysis of each of the resistances, by means of thermodynamics and kinetics, to provide a scientific guidance to minimising the resistance in order to achieve a greater efficiency of alkaline water electrolysis. The thermodynamic analysis defines various electrolysis efficiencies based on theoretical energy input and cell voltage, respectively. These efficiencies are then employed to compare different electrolysis cell designs and to identify the means to overcome the key resistances for efficiency improvement. The kinetic analysis reveals the dependence of reaction resistances on the alkaline concentration, ion transfer, and reaction sites on the electrode surface, the latter is determined by the electrode materials. A quantitative relationship between the cell voltage components and current density is established, which links all the resistances and manifests the importance of reaction resistances and bubble resistances. The important effect of gas bubbles formed on the electrode surface and the need to minimise the ion transport resistance are highlighted. The historical development and continuous improvement in the alkaline water electrolysis technology are examined and different water electrolysis technologies are systematically compared using a set of the practical parameters derived from the thermodynamic and kinetic analyses. In addition to the efficiency improvements, the needs for reduction in equipment and maintenance costs, and improvement in reliability and durability are also established. The future research needs are also discussed from the aspects of electrode materials, electrolyte additives and bubble management, serving as a comprehensive guide for continuous development of the water electrolysis technology.     

The pyrolysis of canteen waste and oak mixtures in various ratios

Batch pyrolysis experiments of canteen waste and oak wood mixtures in various weight ratios were carried out, and the quantities of the products were determined. The experiments included the analysis of the elemental composition, the ash and moisture content and the high heating value of the base materials and the pyrolysis coke, and the particle size distribution and specific surface of the ground coke. The produced syngas, the kinetics of gas production and its changes over time, and the high heating value of the gas were determined.     

徐深气田深层气井温度压力分布计算

徐深气田井深3500～4000m,地层压力30～40MPa,井底温度可达150℃,各生产井不同程度含有CO2,给井下管柱安全带来挑战。气井井筒中流体的温度和压力分布是影响井下管柱受力、变形的重要因素,准确进行温度、压力分布的计算,对气井的生产动态分析和管柱优化具有重要意义。针对徐深气田深层气井的流体性质和井身结构,根据传热学理论和质量、能量守恒原理,将井筒分成若干个节点,考虑油管、套管、水泥环及地层之间的传热性质,建立温度、压力耦合模型,并运用迭代法对模型进行求解。分析计算显示,气井产量、CO2含量、油管直径等参数对井筒温度、压力分布具有重要影响:产量越高,井筒温度下降越慢,而压力下降越快;CO2含量越高,温度下降越慢,而压力下降越快;油管直径越大,温度下降越快,压力下降越慢。实例计算表明,所建立的耦合模型简单方便,具有较高的精度,适合深层气井的温度、压力分布计算,计算结果可为气井的生产动态分析和管柱优化提供依据。     

Three-field synergy of solar energy for induced the enhancement of the oxidation of acrylonitrile in coordination with the production of hydrogen

In the review of the successful solar thermal electrochemical process (STEP) of acrylonitrile oxidation for the effective wastewater treatment, the process was actually driven by solar two fields - thermofield and electrofield, essentially activated and motivated for both thermochemistry and electrochemistry. In this paper, the synergistic system of solar three fields, induced by the primary photofield, and sub-thermofield and sub-electrofield, was designed and employed firstly for promoted the efficiency of the solar utilization and pollutant oxidation plus hydrogen production. With the correlative action, the three sub-chemical processes were induced by the solar three fields. The action actually conducted a three-field synergy of solar energy with a combination of the thermo-activation, photocatalysis and electrochemistry of the pollutant oxidation. Exemplified by acrylonitrile, the solar oxidation plus hydrogen production was theoretically and experimentally investigated by the single-field, coupled two-fields and coupled three-fields patterns. The results indicated that the coupled three-field pattern achieved high efficiencies in the solar utilization and oxidative reaction plus the hydrogen production, which was superior to ones of the single or two fields. The solar thermofield enables that the activated acrylonitrile was apt to be thermally decomposed, greatly in favor of the subsequent photo- and electrooxidation. The photocatalytic efficiency driven by the single photofield was reached at a rate of 31.01%. The electrolysis efficiency powered by single electrofield gained a rate of 24.56%. For the combination of the solar three-field pattern, the oxidation efficiencies run up to a rates of 32.74%, 38.06%, 55.01% and 76.01% during 60 min at the 25 °C, 40 °C, 60 °C, 75 °C, respectively. Especially, a joint of the coupled field realized the 6.38 times of the COD removal rate of acrylonitrile in comparison with the single field pattern. Due to the easy anodic oxidation of acrylonitrile and operation under the high temperature, the cathodic reduction of water was enhanced for the production of hydrogen in the electrolysis of the less potential plus an addition of photocatalysis. The experimental data and mechanistic analysis significantly revealed that the system achieved such a synergetic action. The full mineralization plus the hydrogen production was attributed to a coupling and matching integration of the solar three fields and subchemistries.