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硝基苯类化合物的高效毛细管电泳的分离测定
张裕平,,袁倬
分析化学 , 2001,
Abstract: 对硝基苯甲酸一般由铬酸氧化而制得,常用于制麻醉剂和染料等的原料,其工业产品中含不少杂质,如对硝基苯甲醛等,在一般产品质量控制及污水排放过程中,常采用酸碱滴定法测定其主含量,另外,用HPLC分离测定对硝基苯甲酸也有报道,但其流动相配制较烦,柱材料昂贵.毛细管电泳以其高效、快速、进样量少、成本低的特点被广泛应用于环境样品及药物的分析,本文采用毛细管区带电泳法分离测定了3种硝基苯的化合物,方法快速、准确.
含权双调和椭圆型问题的特征值不等式
Eigenvalue Inequality for a Weighted Biharmonic Elliptic Problem
 [PDF]


Pure Mathematics (PM) , 2012, DOI: 10.12677/pm.2012.22012
Abstract: 本文主要讨论了一类含权的双调和椭圆型Dirichlet边值问题的第一和第二特征值之间的关系,通过一些变分技巧得到了相关的不等式,并在低维数空间给出了一些估计。
In this paper, we study the relation between the first and the second eigenvalue of a weighted biharmonic elliptic problem with Dirichlet boundary. By some variational technique we obtain the corresponding inequality, and some evaluations are put forward in low dimension space.
含变号权的p-Laplcean算子的特征值问题
On the Eigenvalue Problem for p-Laplcean Operator with Indefinite Weights
 [PDF]


Pure Mathematics (PM) , 2011, DOI: 10.12677/pm.2011.12012
Abstract: 本文研究含不定权的Hardy-Sobolev算子的特征值问题(不定权表示权函数 可以变号,并具有非平凡的正部),讨论了第一特征值的单一性、非第一特征值的特征函数的变号性和特征值序列的无穷性。并证明了Fu ik谱中非平凡曲线的存在性。
In this paper we study the eigenvalue problem for the -Laplcean operator with indefinite weights. The simplicity, isolation of the first eigenvalue is studied here. Furthermore, the existence of a nontrivial curve is shown in the Fu ik spectrum.
数学与科学、自然哲学的关系及其演变
Evolvement of the Relation between Mathematics, Science and Natural Philosophy
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Advances in Philosophy (ACPP) , 2013, DOI: 10.12677/ACPP.2013.23005
Abstract: 本文探讨了历史上数学与自然哲学、交叉科学、社会科学的关系,并结合历史和现代科学的发展,阐述了数学与自然哲学之间的主导与被主导关系的演变。
In the present paper, the relation between the mathematics and natural philosophy, overlapping science and social science is firstly illustrated, and then discusses the evolvement of the relation which changes from dominant to being dominated between mathematics and natural philosophy, combining with the history and the development of modern science.
关于《易经·系辞》中理想人格的探讨
Discussion on Ideal Personality in the Xici of I-ching
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Advances in Philosophy (ACPP) , 2019, DOI: 10.12677/ACPP.2019.84008
Abstract:
在《系辞》中出现的理想人格,可分为君子、贤人、圣人三层次。其中君子的境界表示一个人在道德修养上已臻于成熟,他不一定要成就功业,若治世则出仕以成业,若乱世则退隐以保身;贤人才德兼备,体乾道以成德,并行坤道辅佐君王以成业;圣人才德非凡,德高而能穷神知化、参赞天地化育,才高而能制器以利天下。从君子到圣人,越是高层次的理想人格,其德与业越是密切相关,对于修养目的与贡献社会,实现得也越彻底。
There exists three levels of the ideal personality, i.e., gentleman, sage, saint, in Xici of I-Ching. The gentleman, who has been nurtured in the moral training, doesn’t have to be a winner, but he achieves his cause if the world is in peace and prosperity, and retires if in chaos. The sage has both talent and virtue, experiences the qian-tao so as to achieve the virtue, and uses the kun-tao to help the king for achievement. The saint, who owns the extraordinarily talent-virtue such that to explore and know the mystery, has been aware of the raising of the heaven and earth, and benefit the world by his high skill. From the gentleman to the saint, the higher the level of the ideal personality is, the closer the relation between the virtue and success is, and more thorough the achievement of the train’ goal and attribution for the society will be.
《系辞》中关于修养论的哲学探讨
Philosophic Discussion on the Theory of Cultivation in Xi-Ci
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Advances in Philosophy (ACPP) , 2020, DOI: 10.12677/ACPP.2020.91005
Abstract:
《系辞》修养论的理论基础有三:一是天道下贯为人性,性善是人道德修养的动力;二是天人关系。《系辞》以阴阳变化来解释世界的运行,并认为天与人是相应的,人借助观察天地之运作而得到道德之启示,回过头来修养自己的身心;三是以趋吉避凶为基础,讨论道德修养。
The theoretical basis of the theory of cultivation in Xi-Ci is as follows: firstly, the Tao of heaven runs down to human nature, and goodness of nature is the motive force of human moral cultiva-tion; secondly, the relationship between human and nature. In Xi-Ci, the changing of Yin and Yang was used to explain the movement of the world and believed that heaven and human were cor-responding. By observing the operation of heaven and earth, human got moral enlightenment and cultivated his own body and mind. Thirdly, the moral cultivation is to be based on pursuing good fortune and avoiding disaster.
蒸发冷却技术的发展、应用和展望
顾国彪,阮琳,刘斐,
电工技术学报 , 2015,
Abstract: 电气装备与电子设备的蒸发冷却技术是拥有我国自主知识产权的创新技术,该技术从原理研究、中试验证到产业化应用历时50余年,在电工领域应用取得了诸多丰硕成果。该文重点介绍了该技术在水力发电、大科学研究装置和电力电子器件领域应用的案例。鉴于其高效换热、可靠运行和低功耗的技术特点,展望了蒸发冷却技术未来在抽水蓄能、数据中心以及高压直流输电领域应用的广阔前景。
高效毛细管电泳检测克莱保健烟贴中的尼古丁
,李向军,袁倬
分析化学 , 2001,
Abstract: 尼古丁是一种生物碱.尼古丁的检测方法有薄层色谱法、容量法、电导滴定法等.本文研究了用毛细管电泳技术分离测定克莱保健烟贴中的尼古丁,获得了比较满意的结果.2实验部分2-1仪器与试剂1229型高效毛细管电泳仪(北京新技术应用研究所),固定波长紫外检测器,ACS2000高压电源,ACS2000色谱工作站(中国科学院研究生院应用化学研究所),石英毛细管50μm(id)×60cm,有效长度约44-5cm(河北永年光导纤维厂),pH-HJ90B型酸度计(上海雷磁仪器厂).
考虑滑脱效应的低渗低压气藏的气井产能方程
张烈,,刘启国,
天然气工业 , 2009,
Abstract: ?考虑了气体在低渗低压气藏中的滑脱效应,定义了考虑滑脱效应的滑脱表皮系数(s滑脱),建立了形式简洁的气井产能方程。s滑脱介于-1~0之间,即滑脱效应可以增加气井产能。在已知其他参数的条件下,只需计算出s滑脱就可以确定出存在滑脱效应的气井产能。由于实际气藏往往会表现出其他非线性渗流特征(如启动压力梯度效应和高速非达西效应),因此实际应用时还需要考虑这些因素。现场实例分析表明:对于存在滑脱效应的低渗气藏气井而言,用该新的产能公式计算出的产能大于用常规产能公式计算出的产能,且与实际产能比较吻合,表明了公式的正确性和适用性。
葡萄糖酸溶液中三组分一锅法合成新型β-吲哚衍生物有机化学
严楠, 夏剑, 云奎, , 林春花, 廖维林
有机化学 , 2014, DOI: 10.6023/cjoc201406010
Abstract: 在生物质葡萄糖酸水溶液中,醛、吲哚和2,2-亚戊基-1,3-二噁烷-4,6-二酮通过"一锅煮"三组分反应合成了13种新型β-吲哚衍生物,产率为66.4%~98.5%.该方法具有反应条件温和、底物普适性好、收率高及对环境友好等优点,为β-取代吲哚类化合物的合成提供了一种有效的新方法.
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