提高流通人员素质,强化图书馆人文精神

图书馆的人文关怀体现在流通部工作人员的服务之中,流通人员的素质是图书馆人文精神的重要指标。根据目前我国高校图书馆流通人员素质现状,要强化图书馆人文精神,必须大力提高流通人员素质。     

EXPERIMENTAL INVESTIGATIONS ON PRESSURIZED FLUIDIZED BED COMBUSTION(PFBC)FOR HIGH ASH COAL

The first phase of the experimental investigation in our institute on pressur-ized fluidized bed combustion(PFBC)technology is introduced,and the results of fivetests are presented.The combustion efficiencies were as high as 97% 98% when high ashcontent coal was burnt in PFBC,and the sulphur retention efficiencics were 80%-85%with the Ca/S mole ratios between 1.5-1.8.The particulate content in flue gas at the out-let of high temperature gas clean-up system was 189mg/m~3(normalized).The average di-ameter of particles was 2.5-3μm and the weight fraction of particles with diameter largerthan 10μm was not greater than 3%.     

高速公路路基工程的爆破设计与施工

对广东某高速公路路基工程的爆破，提出了浅孔爆破与预裂爆破的方案，并就爆破参数、起爆网络、施工中的安全问题等进行了计算和分析。     

水生植物床去除富营养化水源水中藻毒素的机制

为净化富营养化水源水中的藻毒素,在太湖湖滨进行了水生植物床(AVB)技术试验.该技术对MC-RR和MC-LR的平均去除率分别达63.0%和66.7%.用酶联免疫吸附法检测发现水生植物根部对藻毒素的富集能力大于茎叶部位.用荧光原位杂交法在AVB的底泥中检测到2种已知的藻毒素降解细菌,证明微生物降解作用的存在.植物根系原生动物相和后生动物相丰富,盾纤虫、钟虫、旋轮虫、腔轮虫是优势种,原生动物和后生动物的捕食作用在蓝藻和藻毒素的去除中发挥着积极作用.     

河北省循环经济发展的战略思考

探讨了河北省循环经济发展的战略目标，提出了河北省发展循环经济的对策。     

长循环固体脂质纳米粒给药系统研究新进展

长循环固体脂质纳米粒是近年正在发展的一种新型毫微粒类给药系统.以固态的天然或合成的类脂,如卵磷脂、三酰甘油等为载体,将药物包裹于类脂核中,制成粒径为50~1000nm的固态胶体给药系统,静脉注射给药后,能够躲避MPS(mono nuclearphagocytic system)的摄取[1]·同时,也可对非MP     

Selection environments, flexibility and the success of the gas turbine

This paper explains the success and failure of two technologies for electricity generation. Both the combined cycle gas turbine (CCGT) and fluidised bed boiler burn fossil fuels more cleanly than more traditional technologies. Whereas the CCGT has been used for an increasing number of new power plants during the past 15 years, the fluidised bed has struggled to attract attention outside a small-scale niche. The paper examines economic, institutional and political changes in the selection environment for power plant technologies to explain this success and failure. It demonstrates how the technological flexibility of the CCGT allowed it to benefit from different selection environments to become the electricity industry's current technology of choice.     

关于循环经济的理论辨析

循环经济是人类经济发展模式的必然选择。环境和资源是循环经济的核心；循环经济是一个经济活动过程。而不是一个经济要素，这是循环经济的本质；对资源的节约、环境的保护，是循环经济的主要特征。作为一种思想或理念，循环经济与可持续发展有着密切的联系，可谓一脉相承。     

波流循环水槽教学实验平台建设与水动力模型实验方案探讨

文章介绍了一种小型波流循环水槽的池体设计方案及其控制系统和控制软件;整合波流循环水槽测试设备及测试技术资源,依托波流循环水槽搭建了创新实验教学平台;依据测量变量的不同,将波流循环水槽教学实验平台水动力模型实验归为力测量、位移测量、流场测量三个类别,并介绍了各类模型实验测试方案,给出了三类模型实验操作难点和注意事项。     

Equilibrium bed-concentration of nonuniform sediment

Knowledge of the equilibrium bed-concentration is vital to mathematical modeling of the river-bed deformation associated with suspended load but previous investigations only dealt with the reference concentration of uniform sediment because of difficulties in observation of the bed-concentration. This work is a first attempt to develop a theoretical formula for the equilibrium bed-concentration of any fraction of nonuniform sediment defined at the bed-surface. The formula is based on a stochastic-mechanistic model for the exchange of nonuniform sediment near the bed, and described as a function of incipient motion probability, non-ceasing probability, pickup probability, and the ratio of the average single-step continuous motion time to static time. Comparison of bed-concentration calculated from the proposed formula with the measured data showed satisfactory agreement, indicating the present formula can be used for solving the differential equation goverming the motion of suspended load. Project supported by the National Natural Science Foundation of China (Nos. 59779010 and 50079025)