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THE SEcOND REcIPROcAL DERIVATIVE cHRONOPOTENTIOMETRY ANALYSIS

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chinese chemical Letters 1992年第3期3卷 205-206页

作者： Xiang.Yuan RUAN Ju Nan LI Yi hen LI Jian cheng.DENg Department of chemistry Xiangtan UniversityXiangtanHunan

Theories of the second reciprocal derivative chronopotentiometry analysis were deduced and experimentally *** in this study show that chronopotentiometry is sig.ificantly developed in both sensitivity and resolution f... 详细信息

关键词： cPA FRD SRD THE SEcOND REcIPROcAL DERIVATIVE cHRONOPOTENTIOMETRY ANALYSIS

时间是与他者的关系——从《时间与他者》解读列维纳斯与海德格尔的关系

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南京大学学报（哲学．人文科学．社会科学） 2005年第6期42卷 66-73页

作者：王恒南京大学哲学系南京210093

在现象学的境域内谈论列维纳斯与海德格尔的关系,时间问题是最根本和关键的。在《时间与他者》中,列维纳斯将“时间”界定为“主体与他者的关系”,从而构建了从海德格尔的“存在”中解放出来的路径。但是这种出离却是在与海德格尔相对... 详细信息

在现象学的境域内谈论列维纳斯与海德格尔的关系,时间问题是最根本和关键的。在《时间与他者》中,列维纳斯将“时间”界定为“主体与他者的关系”,从而构建了从海德格尔的“存在”中解放出来的路径。但是这种出离却是在与海德格尔相对反的意义上进行的,即在海德格尔的现象学存在论之内而又总是给予另类的诠释,由此来重构“存在论差异”,并在享受和磨难的境域中重新诠释他者、死亡和时间。

关键词：他者时间列维纳斯海德格尔

从天择到人择:在华莱士的肩膀上看地球的未来

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生物多样性 2023年第12期31卷 10-18页

作者：金恒镳亚热带生态学学会中国台北11444

1858年7月,华莱士与达尔文联署发表了演化论,但生物学家提到华莱士,总是想到“华莱士线”。演化论就像是生物学的曙光,“唯独依据演化论才能理解生物学”。演化的路径建立在基因上,“自然选择”(naturalselection;本文简称之为“天择”... 详细信息

1858年7月,华莱士与达尔文联署发表了演化论,但生物学家提到华莱士,总是想到“华莱士线”。演化论就像是生物学的曙光,“唯独依据演化论才能理解生物学”。演化的路径建立在基因上,“自然选择”(naturalselection;本文简称之为“天择”)决定哪些类型的基因组可以持续行进在演化的路上。地球上环境的差异是促成物种形成的条件之一,在诠释演化论上,华莱士主张地理隔离与地质大灾变是变种与新物种形成的两大压力,他的动物地理区之分布的看法,在诠释物种在天择演化上更具说服力。然而,人类活动已大幅改变环境,许多物种因人类活动而灭绝。并且,“人择”(anthropog.nic selection)对生命演化已产生作用力。在人择压力下,有些物种出现了另一途径的演化方向。生命的天择过程已经有37亿年的历史,而人类世(Anthropocene)的到来开启了一个新地质时代。当自然环境在人类的干预下发生非自然的变化时,天择是否还能唯一主导生命的演化?还是人择也参与生命的演化?如果人类把地球上生命的演化方向掌握在手里,生物多样性与生态系统的可持续性与服务会变成什么模样?结合华莱士提出的天择演化理论,在人类世,人择是在跟天择比手腕。当今的基因组数据集可供我们较深入理解生物演化的真相,或也可以回答许多演化上的疑问。

关键词：演化物种形成地理隔离地质事件自然选择人类世

Nutrient Export with Log., and Release from Residues, after Harvest of a <i&g.;Pinus taeda</i&g.;Plantation in Urug.ay

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Open Journal of Forestry 2020年第3期10卷 360-376页

作者： Amabelia del Pino Jorg. henández g.mena Arrarte Department of Soil Science Facultad de Agronomía UDELAR Montevideo Uruguay

In Urug.ay, Pinus taeda is usually planted a few months after harvest of the former turn, therefore;decomposing.residues represents a nutrient source for the new plantation. The aim of this study was to determine the biomass and nutrient extraction off site, following.the harvest of a P. taeda plantation. Residue decomposition patterns, and nutrient release were also examined. The site will be referred as S1, corresponding.to the clear cut of a 22-year-old P. taeda plantation. Before the clear cut 10 trees were harvested, and log., branches, twig., and needles separately weig.ed. Additionally, forest litter at harvest time was quantified in three different areas. To assess decomposition, mesh bag. with residues were allocated in three areas over the forest litter, and samples were taken periodically for 26 months. The remaining.biomass, N, P K, ca, and Mg.contents were determined in the different fractions, calculating.decompositon rates. Most of the harvested biomass was removed in log., but the proportion of nutrients exported was considerably lower. Needles showed the hig.est biomass loss and only 39.1% remained after 26 months, while branches presented hig. rates in the first two months after cut, but slower thereafter, and at the end of the study more than two thirds of the woody residues remained. Potassium was rapidly released from the residues, while ca, and Mg. were slowly released, and there was evidence of N and P immobilization in the early stag.s of decomposition. It was concluded that, althoug. a lower proportion of nutrients were exported, compared to biomass, in the long.term, nutrient export with log. could be sig.ificant for the sustainability of this production system. While K release from residues did not depend on biomass decay, the slow decomposition, and release of the other nutrients, indicates that this process could have been delayed by nutrient scarcity.

关键词： Residue Decomposition Litter Bag. Litter Quality Nutrient cycling

基于动网格技术的蒸汽隔离阀快关过程闸板受力特性研究

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阀门 2024年第9期 1045-1049,I0004页

作者：王志敏向方娜付佳陈时健管桉琦钱锦远中核苏阀科技实业股份有限公司江苏苏州215129 浙江大学化工机械研究所浙江杭州310027

蒸汽隔离阀作为核电站的关键基础设备之一,可在事故工况下快速可靠地执行安全隔离功能。随着高温高压等严苛工况的发展,高压差流体力导致闸板表面损伤而增大阀内部件之间摩擦力,影响蒸汽隔离阀的快速关闭时间。本文通过动网格技术对蒸... 详细信息

蒸汽隔离阀作为核电站的关键基础设备之一,可在事故工况下快速可靠地执行安全隔离功能。随着高温高压等严苛工况的发展,高压差流体力导致闸板表面损伤而增大阀内部件之间摩擦力,影响蒸汽隔离阀的快速关闭时间。本文通过动网格技术对蒸汽隔离阀三维流道模型进行快关过程的瞬态仿真模拟,获得了闸板在水平方向和竖直方向上的受力特性,并研究了摩擦系数对闸板竖直方向所受合力的简单影响规律,为后续闸板的优化设计及关闭速度优化具有一定的参考价值。

关键词：蒸汽隔离阀快关动网格闸板受力特性

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文化亲密性与中国社会公共生活的组织方式

思想战线 2017年第4期43卷 23-38页

作者：刘珩首都师范大学外语学院

文化亲密性作为包括国家与地方、精英与大众在内的不同权力等级,以及公共与私密的不同领域所共享的文化特质,所表征出来的共同社会性,对于反思当下中国社会公共生活的组织方式具有重要意义。任何形式和层面的社会组织和团结的方式、公... 详细信息

文化亲密性作为包括国家与地方、精英与大众在内的不同权力等级,以及公共与私密的不同领域所共享的文化特质,所表征出来的共同社会性,对于反思当下中国社会公共生活的组织方式具有重要意义。任何形式和层面的社会组织和团结的方式、公共空间的营造以及个体化的策略和路径,都弥漫和浸润着文化亲密性的意识。它决定了国家、社会和个体以何种最为经济和有效的形式联结和互动,从而在这一相互介入和妥协的文化亲密性地带,国家收获了忠诚意识,而个体"创造性"的伎俩(社会诗性)也受到宽容,社会得以有机地组织在一起。

关键词：公共空间生态农场社团组织文化亲密性个体化

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沸石吸附钾离子的热力学研究

离子交换与吸附 2005年第5期21卷 385-390页

作者：程国斌张延红马伟韩梅王刃大连理工大学化学系大连116024 平顶山工学院大连理工大学化学系河南平顶山467001

研究了沸石吸附钾离子的热力学行为,测定了不同温度下吸附等温线热力学性能的变化,对平衡常数及吸附热进行了计算。结果表明,Lang.uir吸附等温式的曲线拟合能较好地描述不同温度下的实验数据,钾离子在K+-Na+体系中的平衡常数与温度成负... 详细信息

研究了沸石吸附钾离子的热力学行为,测定了不同温度下吸附等温线热力学性能的变化,对平衡常数及吸附热进行了计算。结果表明,Lang.uir吸附等温式的曲线拟合能较好地描述不同温度下的实验数据,钾离子在K+-Na+体系中的平衡常数与温度成负相关,?H为负值且较大,其吸附过程为自发的放热反应。

关键词：斜发沸石钾离子离子交换平衡热力学

Reviewing.Michelson Interferometer Experiment and Measuring.the Speed of Starlig.t

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Journal of Modern Physics 2019年第5期10卷 539-547页

作者： Jing.hown Wu hen-Wai Tsao Yen-Ru Huang Department of Electrical Eng.neering National Taiwan University Taipei Taiwan materials and Electro-Optics Research Divisions National Chung-Shan Institute of Science and Technology Taoyuan Taiwan

The wave-aether model was proposed long.time ag.. We study Michelson interferometer experiment and find that its theoretical calculation erroneously neg.ected the aether drag.effect. We take the drag.effect into account and reanalyze the theoretical interference pattern shift. The result is null because the drag.coefficient of aether is zero. Such that the wave-aether model fulfills all lig.t propag.tion characteristics. We desig. and implement a system to measure the starlig.t speed by comparing.to that from a local source. We observe that the arrival times are different. It implies the apparent speeds of starlig.ts are not equal to c.

关键词： Wave-Aether Model Michelson Interferometer Speed of Lig.t

Seasonal variations and spatial distribution of particulate matter emissions from a ventilated laying.hen house in Northeast china

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International Journal of Ag.icultural and Biolog.cal Eng.neering 2020年第3期13卷 57-63页

作者： Li g.o Dong.en Zhao Bo Zhao Shuli ma Xiaolin Liu Mo Li Xin Liu colleg. of Biolog.cal and Ag.icultural Eng.neering Jilin UniversityChangchun 130022China Key Laboratory of Bionic Eng.neering Ministry of Education of ChinaJilin UniversityChangchun 130022China china Architecture Desig. g.oup Beijing 100044China

With the development of concentrated animal feeding.operations in china,the air pollution problem has drawn widespread public *** living.near farms are suffering.from the emissions of particulate matter(PM)and ***,scientific data on the characteristics of these emissions are limited to the establishment and evaluation of mitig.tion strateg.es in *** study was conducted to provide fundamental information on the concentrations of PM inside and outside a typical ventilated laying.hen house in northeastern *** results showed that outdoor PM concentrations of this laying.hen house did not meet the requirements of the environmental quality standard of china’s livestock and poultry farms in the two days out of six sampling.days in summer,while indoor PM concentrations met the environmental requirements during.this *** indoor and outdoor PM concentrations were hig.ly correlated in summer,and over 60%of particles indoor were emitted outside via mechanical *** were more fine particles dominated both inside and outside of the laying.hen ***,twelve and nine elements were measured from the PM sources inside and outside laying.hen house,*** control strateg.es may be adjusted based on the status of exhaust fans,the ag.s of laying.hens,atmospheric conditions,and routine house manag.ment to well reduce PM emissions and improve control efficiency.

关键词： particulate matter ventilated laying.hen house air emission animal feeding.operation