江东地区盐渍化土地开垦问题及其治理措施

通过对江东地区不同类型的盐渍化土地成因分析 ,指出了开垦后遇到的各种实际问题 ,并结合该区的实际情况 ,提出了具体治理措施     

金沙江中下游水流挟沙力试验研究

针对金沙江中下游河道水流泥沙特性，通过水槽浑水试验，利用冲淤平衡原则及相应的分析方法，确定水流挟能力采用张瑞瑾公式，而后确定水流挟沙力表达式中的系数Ｋ与指数ｍ的值。     

Aerosol size distribution measurement of electronic cigarette emissions using combined differential mobility and inertial impaction methods: Smoking machine and puff topography influence

A combination of a real-time high resolution aerosol differential mobility spectrometer (DMS500) and an electrical low pressure impactor (used as a traditional impactor) was applied to simultaneously collect real-time data and analyze particle size by weighing the mass of the aerosol collected on the impactor stages. Nonrefillable fixed-power as well as refillable and power adjustable e-cigarettes (e-cigs) were tested at various puffing flow rates. Two types of smoking machines were used: a smoke cycle simulator that provides instantaneous straight sample delivery to the analyzer and a Human Profile Pump that utilizes two synchronized pistons and operates by sample pull–push mode. Chemical analysis of the major components of e-liquid (propylene glycol, vegetable glycerol, water, and nicotine) was made using a proton nuclear magnetic resonance method. Limited amounts of samples collected on impactor stages were analyzed by liquid chromatography time-of-flight mass-spectrometry to find newly formed semi- or low-volatile organic compounds in e-cig aerosol and by transmission electron microscopy to check for the presence of nanoparticles in e-cig emissions. Differential mobility and inertial impaction methods showed comparable particle size results. Method of aerosol generation (type of the smoking machine) as well as puffing topography affected the e-cig particle size. Newly formed semi- or low-volatile organic compounds as well as metal nanoparticles were found in e-cig aerosol.

Copyright © 2018 American Association for Aerosol Research     

Scanning DMA data analysis II. Integrated DMA-CPC instrument response and data inversion

Analysis of scanning electrical mobility spectrometer (SEMS) or SMPS data requires coupling the scanning differential mobility analyzer (DMA) transfer function with the response functions for the instrument plumbing and the detector. In the limit of plug flow (uniform velocity) within the DMA, the scanning DMA transfer function has the same form as that for constant voltage. Most SEMS/SMPS data analysis uses this model, though previous studies have shown that boundary layers distort the transfer function during scanning DMA measurements. Part I determined the instantaneous transfer function during scanning of the TSI Model 3081 A long column DMA by modeling the flows, fields, and particle trajectories within the actual DMA geometry. This study (Part II) combines that transfer function with empirical data on the efficiencies and delay time distributions of the plumbing and detector of the SEMS/SMPS to determine the instantaneous rate at which particles are counted, and integrates the count rate over the finite counting time interval to obtain the integrated SEMS/SMPS response function. Simulations using this geometrical model are compared with those obtained using traditional, idealized DMA models for scan rates ranging from slow (240?s) to very fast (10?s), and with measurements of monodisperse calibration aerosols. Data inversion studies show that both increasing and decreasing voltage scans can be used to determine the particle size distribution, even with fast scans.

Copyright © 2018 American Association for Aerosol Research     

蒋春霖研究史述略

蒋春霖及其<水云楼词>的研究已历时120余年,经过了近代、现代、当代三个发展阶段,取得了一定的成绩,也存在着一些问题.在新世纪蒋春霖的研究将有很大的发展空间,在生平研究、文本分析、心理分析、文化分析等方面会有一个新的突破.     

措勤地区竟柱山组沉积特征及构造意义

上白垩统竟柱山组在西藏措勤地区主要沿班公湖——怒江缝合带、且坎——古昌——阿索断裂带和塔若错北——达瓦错南——秋措麦凹陷带断续分布。岩性主要为一套磨拉石性质的紫红色碎屑岩,其沉积环境以扇三角洲和三角洲为主。扇三角洲和三角洲的前积层理指示了其进积方向,表明早期物源来自北部,而晚期来自南部的陆源物质增加。竟柱山组磨拉石沉积的出现,是班公湖-怒江缝合带造山运动的证据。     

认真学习贯彻十五大精神,把我校的改革和发展推向新阶段──学习江泽民总书记在党的十五大上重要报告的体会

举目瞩目、影响深远的中国共产党第十五次全国代表大会已经闭幕，江泽民同志在这次会议上的重要报告，是邓小平理论在新时期的创造性运用，是我们党带领全国各族人民迈向新世纪的政治宣言和行动纲领，本文结合我校实际，认真学习、领会江泽民同志在党的十五大上所作的重要报告，力图全面贯彻十五大精神，从而把我校的改革和建设推向一个新的阶段。     

江泽民执政为民思想论析

本文从执政规律、党的先进性、人民利益的多样性以及坚持执政为民的根本途径等方面对江泽民执政为民思想作一论析。     

从统一战线的角度看邓滨达反蒋斗争的失败

邓演达是一位激进的平民革命家,对蒋介石的反动统治进行了艰苦的斗争。但由于未能运用统一战线策略,招致革命失败,从而表明统一战线在斗争中的重要性。     

论江泽民对毛泽东、邓小平社会发展评价尺度思想的理论创新

马克思主义经典作家把社会发展的评价尺度当作是一个综合性的范畴,强调文明是反映社会发展的综合尺度,生产力的发展是文明进步的根本动因。毛泽东、邓小平、江泽民在中国社会主义革命和建设的不同历史时期以自身的理论和行动诠释着马克思主义经典作家的思想,展现着中国共产党人对社会发展评价尺度思想的不断深入、不断完善的认识过程,也表现出江泽民同志在这一领域内对毛泽东思想、邓小平理论的发展和创新。