Quality Standards of Carpesium lipskyi

[Objectives]The paper was to establish the quality standard of Carpesium lipskyi,and to provide a scientific reference for its quality control and rational development and utilization.[Methods]Morphological identification,microscopic identification and thin layer chromatography(TLC)identification of the herbal samples were performed.The contents of moisture,total ash,acid-insoluble ash and alcohol-soluble extract of the herbal samples were determined,and their total flavonoid content was determined by UV-spectrophotometry.[Results]The average contents of moisture,total ash,acid-insoluble ash and alcohol-soluble extracts of 10 batches of C.lipskyi were 10.38%-12.27%,8.03%-14.72%,1.01%-3.06%and 20.84%-26.82%,respectively.The total flavonoids content ranged from 4.60%to 5.63%.[Conclusions]The established standard can provide a reference for the quality control of C.lipskyi.The tentative regulations stipulate that the moisture content of C.lipskyi shall not exceed 13.0%;the total ash content shall not exceed 15.0%;the acid-insoluble ash content shall not exceed 4.0%;the alcohol-soluble extract shall not be less than 16.0%;and the total flavonoids shall not be less than 3.0%.

抗滑桩全桩计算的有限差分法

有限差分法求解分析抗滑桩(或预应力锚索抗滑桩)常采用Winkle弹性地基梁法。在对有限差分法分析的基础上,文章改进了有限差分法求解抗滑桩全桩内力和变形的计算方法。对全桩整体采用有限差分方法求解其内力,避免了将桩身分为受荷段和锚固段及利用滑面处连续条件求解的复杂过程。该方法对滑坡推力与地基系数取值,可依据实际情况假定为广义形式来模拟土体对抗滑桩的作用工况。能很好地求解预应力锚索作用于桩身或桩身设多道锚索工况下的锚索拉力值。并利用Excel对该方法编程,能便捷地计算抗滑桩内力。分析计算结果,当差分节点单元长度适当时,计算结果能够较好地满足工程应用。对比有限元计算分析结果,相同节点单元长度下两者计算相差较小,且节点长度越小,越接近有限元结果。

用有限差分法计算Winkle梁的一种方法

介绍了一种用有限差分法计算Winkle弹性基础梁的简单实用的方法,此方法中Excel软件、Matlab软件联合使用,优势互补,组成一个开放的、易修改的、具有软件性质的计算模块。

Dame Van Winkle形象辨析

华盛顿.欧文创作的短篇小说RipVan Winkle曾被誉为美国早期文学的精品。作者在刻画与主人公Rip相对的女性人物Dame Van Winkle的形象时,则使用消极的、侮辱性的、极端偏见的言辞,把她列入不足挂齿的"妇道人家",甚至贬低为"泼妇"、"悍妇"、"妖妇"。如今重读这篇经典我们发现:小说的男主人公Rip是个十足的懒汉懦夫、现实生活的逃避者和时代的落伍者,而他的妻子Dame Van Winkle则是一个含辛茹苦的善良母亲、一个兢兢业业的持家能手、一个敢于向男权社会怒吼和呐喊的伟大女性,同时也是父权社会的牺牲品和受害者。她的唠叨和抱怨,实际上是对女性艰难生活和不公命运的合理申诉,也是对性别歧视的严正宣战,更是对妇女自由、平等、尊严、幸福的正义呐喊,应该引起男人的理解、女人的同情以及社会的重视和关注。

W inkle地基上的弹性薄板的MRM

目的 研究 Winkle地基上的弹性薄板的 MRM(Multiple Reciprocity Method) .方法 利用重调和算子的基本解 ,定义一基本解系列 ,进行理论推导 .结果与结论 给出了

Eternal Nature: Spiritual Haven——The Function of Nature in Rip Van Winkle

Rip Van Winkle is one of the most enduring stories of Washington Irving. It is a fantasy tale about a man who somehow "stepped outside of the mainstream of life" (Chang Yao-xin, 1991: 62). Rip Van Winkle lived in a village near the Hudson River north of New York City. He was a simple, good-natured man; he was, moreover, a kind neighbor and an obedient hen-pecked husband. Yet Rip was lazy and this kept him in constant trouble with his wife. His two favorite past-times were sitting in front of the inn, chatting with his friends, and wandering through the mountains with his dog, Wolf. On one of these trips he met a strange dwarf who invited him to join him and other strange-looking dwarfs in a drinking party and a game called nine-pins, in a remote valley. Rip drank too much of beverage and fell asleep. When he woke up, he found that during just one night, twenty years had vanished and strangers were everywhere. His scolding wife had died, and his son, every bit his counterpart in appearance and personality had grown up to replace him. At last he was reunited with a married daughter and began to live a life the same as before.

Humors in Rip Van Winkle

Humor is widely employed in Irving's Rip Van Winkle. There are several kinds of humors in this short story, for example: irony, satire, farce, mockery, etc. Different humors indicate different attitudes the writer adopts toward his subject matter.This essay aims at grasping the main idea of the story through the analyses of various uses of humor.

A Brief Talk about Some of Translation Skills Used in the Two Chinese Versions of Rip Van Winkle

Rip Van Winkle is one of the short novels written in the earliest American history.Its author Washington Irving(1783-1859)is celebrated as the father of American literature.The novel has strong local flavor and romantic conceit.This paper will analyze thetranslation technique of Linshu and Wanzi,Yuning's versions.It will take some examples to analyze the translation techniques of twoversions based on the translations of Linshu and Wan Zi,Yu Ning.

Population differences in susceptibility to stress in Littorina saxatilis from metal contaminated and uncontaminated sites in the Isle of Man

The population of the intertidal gastropod Littorina saxcailis from Laxey estuary in the Isle of Man is exposed to mine-related contamination of Zn （and is tolerant to Zn and Pb） compared to those of Castletown, Derbyhaven, Peel and Ramsey. Tolerances to salinity and desiccation stress were assayed to test how metal tolerance could affect tolerance to general stress. The winkles were experimentally exposed to salinities of 0, 17 and 60 practical salinity units （psu） with 34 psu as control. Desiccation stress was determined by aerial exposure of the winkles at 24℃. No control mortalities were recorded and mortalities in 17 psu were less than 50% for all populations over a 24-day exposure period. LT50 values （mean±SD, n=5） at 0 psu ranged from 6.6 ± 0.6 to 7.5 ± 1.3 d for winkles from Ramsey and Laxey respectively. The values for 60 psu ranged from 7.0±0.7 to 8.4±0.9 d. No significant differences in LT50 values were obtained for the salinity exposurcs（ANOVA,P〉0.05） but there was a significant difference in tolerance to desiccation （P〈0.01）. The winkles from Laxey showed very high susceptibility to desiccation stress probably indicating a physiological trade-off to metal tolerance.

Washington Irving and His“Rip Van Winkle”

Washington Irving,the first American writer to win an international reputation,isregarded as the pioneer of American literture.His first important success was“Historyof New York”,which appeared in1809,and in this book aod the later publishedfamous work “The Sketcc Book”,he drew upon the enchanting wilderness of his nativeNew York for his artistic material.He also made wide use of legends and folk

Irving's Ambivalence toward the “New” America in “Rip VanWinkle”

Set in the years before and after the American Revolutionary War, Irving's short story"Rip Van Winkle"is frequently read as a mythic escape from history; however, Irving's vision of history is far more complicated than what it appears to be in the sense that Irving presents his ambivalent attitudes toward the new America the Revolution created by hiding his discourse of implicitly criticizing the American Revolution's legacy under the cover of his explicit or public celebration of the Revolution.

Literature Review of Rip Van Winkle

Rip Van Winkle is a one of the classics in American literature history. The researches on this text are mainly from feminism, deconstruction, escapism and historicism point of view.

下穿高速公路顶进框架桥工作坑滑板设计计算方法

针对目前下穿高速公路顶进框架桥工作坑滑板设计基于经验,无法根据地质条件、框架桥规模、斜交角度进行针对性设计的缺点,基于框架桥受力特点,分区域考虑荷载集度,将工作坑滑板简化为支承在Winkle地基模型上的梁格体系,有效解决了前述问题。提供的思路可供工作坑滑板设计和监测提供参考。

Atom-economic macrocyclic amphiphile based on guanidinium-functionalized selenacrown ether acting as redox-responsive nanozyme

Control of self-assembly is significant to the preparation of supramolecular materials, but the control of hydration, responsiveness, dimension, catalysis of macrocyclic amphiphiles in an atom-economic manner is still a great challenge. The herein presented 527 Da low-molecular-weight macrocyclic amphiphile was fabricated by utilizing the selenium-containing crown ether as a hydrophobic motif together with guanidinium group as the hydrophilic moiety. The resulting benzo[21]crown-7 based macrocyclic amphiphile readily forms a redox-responsive solid nanoparticles in water, which can further interconnect into wrinkled pattern on-surface, as well as exhibits as a nanozyme for catalyzing disulfid bond formation. The present work highlights the great potential of guanidinium-and selenium-containing crown ethers for the control of functional assemblies.

光皮桦在杉木采伐迹地中试种初报

2014年开始，在海拔900-950m高的杉木（Cunninghamia lanceolata）纯林采伐迹地中引种光皮桦（Betula luminifera H.Winkl），栽植后对其生长量在不同山体坡位条件下进行对比试验。结果表明：光皮桦造林成活率平均达91.77%；保存率平均达87.50%，中坡的成活率、保存率为最高，不同坡位对光皮桦的造林成活率影响极显著、保存率影响显著。造林第3年的胸径生长量平均达2．13cm,树高生长量平均达432.53cm，不同坡位胸径、树高生长量是山体下坡最高，不同坡位之间的胸径和高生长量影响均达极显著水平。因此，光皮桦可考虑作为杉木人工纯林采伐迹地更新的树种加以推广，但应选择中、下坡位，土层深厚的地段为好。