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汉黄芩素与铜(Ⅱ)、钴(Ⅱ)、镍(Ⅱ)固体配合物的合成、表征及抑菌活性研究 被引量:7
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作者 胡道道 房喻 +2 位作者 马宁 孙作民 曹治权 《陕西师大学报(自然科学版)》 CSCD 1994年第1期31-34,共4页
报道了汉黄芩素(H2L)与Cu(Ⅱ),Co(Ⅱ)和Ni(Ⅱ)固体配合物的合成,并对其进行了表征.考察了配体与各配合物的抑菌活性.
关键词 汉黄芩素 配合物 抗微生物性
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三维标测系统在右室流出道室性早搏射频消融中的应用 被引量:1
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作者 崔海明 张家友 廖德宁 《第二军医大学学报》 CAS CSCD 北大核心 2014年第8期910-914,共5页
目的探讨使用三维电解剖指导右室流出道室性早搏(室早)射频消融方法的可行性及效果。方法选择连续入院行射频消融的频发室早患者共49例,分为两组,一组使用CARTO3三维电解剖系统指导消融(三维组,n=29),一组使用常规X线指导消融(常规组,n=... 目的探讨使用三维电解剖指导右室流出道室性早搏(室早)射频消融方法的可行性及效果。方法选择连续入院行射频消融的频发室早患者共49例,分为两组,一组使用CARTO3三维电解剖系统指导消融(三维组,n=29),一组使用常规X线指导消融(常规组,n=20)。比较两组手术时间、X线透视时间、X线用量、手术费用、并发症、成功率和复发率等差异。结果三维组即刻成功率为100%(29/29),常规组为95%(19/20);常规组有3例并发症,三维组无明显并发症;随访6个月,常规组复发3例(15.0%),三维标测组无复发。三维组X线透视时间少于常规组[(1.3±3.6)min vs(44.2±28.2)min,P<0.01],相应的X线用量也大为减少[(93±242)mGy vs(3 919±2 309)mGy,P<0.01],但手术费用较高(P<0.01)。两组手术总时间差异无统计学意义。三维组29例患者中,有20例(69.0%)完全无X线透视。结论三维电解剖指导右室流出道室早射频消融是安全和有效的,可以显著减少X线透视时间和X线曝光量,部分可实现完全无X线透视完成消融手术。 展开更多
关键词 右室流出道 室性早搏复合征 导管消融术 电解剖标测 X线
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溶剂对异丙醇锆的改性作用 被引量:1
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作者 王晶 翟玉春 高宏 《化工冶金》 CSCD 北大核心 1998年第2期154-156,共3页
将异丙醇锆溶于非母液醇中或添加络合剂形成可溶产物均可提高异丙醇锆在醇中的溶解度.其实质都是改变了异丙醇锆的结构,使之转变成为锆异丙醇盐的可溶性衍生物,从而提高了异丙醇锆的溶解度.此外添加络合剂亦改变了异丙醇锆的溶胶-... 将异丙醇锆溶于非母液醇中或添加络合剂形成可溶产物均可提高异丙醇锆在醇中的溶解度.其实质都是改变了异丙醇锆的结构,使之转变成为锆异丙醇盐的可溶性衍生物,从而提高了异丙醇锆的溶解度.此外添加络合剂亦改变了异丙醇锆的溶胶-凝胶行为. 展开更多
关键词 溶剂改性 异丙醇锆 络合物 醇盐水解 溶解度
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复杂性前沿探索Ⅱ:综述和展望——以2007《涌现》文献分析为例 被引量:1
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作者 吴彤 《系统科学学报》 2008年第4期1-8,共8页
论文以2007年《涌现》杂志发表物为分析对象,讨论了当今复杂性科学探索的若干特征,对2007复杂性研究的境况做了综述,对未来的复杂性研究做了进一步的展望。
关键词 复杂性 前沿 综述 展望 《涌现》
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对堆排序的改进算法 被引量:1
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作者 朱凤春 《洛阳大学学报》 2001年第4期6-8,共3页
提出一种堆排序的改进算法 ,与传统的算法相比 ,可明显降低基本操作的次数 。
关键词 堆排序 时间复杂度 常数因子 算法 堆重建
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两个新型的杂多酸喹啉电荷转移配合物的合成(英文) 被引量:1
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作者 周瑞文 曲小妹 +5 位作者 王琨 祝波 张宏 杨振芳 刘延磊 漆小燕 《吉林化工学院学报》 CAS 2005年第3期3-4,共2页
首次报道了两个新型杂多酸喹啉电荷转移配合物[(C9H7NH)3]·[PMo12O40]和[(C9H7NH)6]·[P2Mo18O62]的合成方法,并用元素分析和红外光谱等手段对其进行了表征、对配合物1和2的结构分析表明这些化合物中的多阴离子仍保留其Keggin... 首次报道了两个新型杂多酸喹啉电荷转移配合物[(C9H7NH)3]·[PMo12O40]和[(C9H7NH)6]·[P2Mo18O62]的合成方法,并用元素分析和红外光谱等手段对其进行了表征、对配合物1和2的结构分析表明这些化合物中的多阴离子仍保留其Keggin和Dawson结构,但其特征振动谱带有一定的红移蓝移,表明在配体和受体之间存在着较强的相互作用和电荷转移. 展开更多
关键词 电荷转移配合物 合成 杂多酸喹啉
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GEOLOGICAL EVOLUTION AND OROGENY OF EAST KUNLUN TERRAIN ON THE NORTHERN QINGHAI—TIBET PLATEAU 被引量:2
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作者 Xu Zhiqin, Yang Jingsui, Li Haibing(Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037,China) 《地学前缘》 EI CAS CSCD 2000年第S1期234-235,共2页
The East Kunlun terrain is located on the northern Qinghai—Tibet plateau, composed of the East Kunlun Mountain and the Qaidam Basin and bounded by the Qilian terrain on the north and Bayanhar—Songpan Ganze terrain o... The East Kunlun terrain is located on the northern Qinghai—Tibet plateau, composed of the East Kunlun Mountain and the Qaidam Basin and bounded by the Qilian terrain on the north and Bayanhar—Songpan Ganze terrain on the south. It is regarded as a composite orogenic belt characterized by having developed superimposed ductile tectonic regimes reflecting the collision orogeny during Early Paleozoic and Triassic periods. It has also experienced transformation from ductile to brittle deformation caused by the post orogeny, since Jurassic after the formation of the East Kunlun Mountain and the Qaidam Basin. A Paleozoic subduction complex zone was recently recognized along the north border of the East Kunlun terrain from Da Qaidam to Dulan (Xu,et al, 1 999). It is composed of ophiolite (of Early Paleozoic age?), tectonic melange and very high\|pressure metamorphic rocks with eclogite (\%p\%=2 2GPa, \%t\%=720℃) (Yang,et al.,1998) and garnet\|peridotite (\%p\%=2 5GPa, t =837℃). The Anyemaqin Triassic subduction complex zone trending in NWW\|SEE was developed along the eastern segment of the south border of the East Kunlun terrain. It is mainly composed of ultramafic and mafic rocks, pillow basalt, radiolaria\|bearing clastic rocks, tectonic melange and mylonite. The subduction complex zone contains a series of the southward overthrusting imbricated slices. Instead of this subduction complex zone, a 2 km\|wide sinistral strike\|slip ductile shear zone trending in E\|W was developed along the western segment. On the basis of macroscopic and microscopic studies on a series of structural sections, we divide the East Kunlun Mountain into four tectonic units as follows: (1) North Proterozoic Metamorphic Basement Zone; (2) South Early Paleozoic—Triassic Superimposed Fold Zone; (3) South Triassic Transpression Zone; (4) Anyemaqin Back\|Arc Decollement\|Thrust Zone. 展开更多
关键词 EAST KUNLUN TERRAIN composite orogenic belt subduction compl ex ZONE TRANSPRESSION shear ZONE
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DYNAMICS ON NONCOMMUTATIVE ORLICZ SPACES
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作者 L.E.LABUSCHAGNE W.A.MAJEWSKI 《Acta Mathematica Scientia》 SCIE CSCD 2020年第5期1249-1270,共22页
Quantum dynamical maps are defined and studied for quantum statistical physics based on Orlicz spaces.This complements earlier work[26]where we made a strong case for the assertion that statistical physics of regular ... Quantum dynamical maps are defined and studied for quantum statistical physics based on Orlicz spaces.This complements earlier work[26]where we made a strong case for the assertion that statistical physics of regular systems should properly be based on the pair of Orlicz spaces(Lcosh-1,L log(L+1)),since this framework gives a better description of regular observables,and also allows for a well-defined entropy function.In the present paper we"complete"the picture by addressing the issue of the dynamics of such a system,as described by a Markov semigroup corresponding to some Dirichlet form(see[4,13,14]).Specifically,we show that even in the most general non-commutative contexts,completely positive Markov maps satisfying a natural Det ailed Balance condition canonically admit an action on a large class of quantum Orlicz spaces.This is achieved by the development of a new interpolation strategy for extending the action of such maps to the appropriate intermediate spaces of the pair(L∞,L1).As a consequence,we obtain that completely positive quantum Markov dynamics naturally extends to the context proposed in[26]. 展开更多
关键词 det ailed balance Orlicz space Markov semigroup comple tely positive
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ON THE POWER OF STANDARD INFORMATION FOR APPROXIMATION IN RANDOMIZED SETTING
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作者 黄仿伦 《Numerical Mathematics A Journal of Chinese Universities(English Series)》 SCIE 2004年第1期31-41,共11页
This article considers weighted approximation of multivariate function in reproducing kernel Hilbert space, and gives a relation between nth minimal errors for standard and linear information in the randomized setting... This article considers weighted approximation of multivariate function in reproducing kernel Hilbert space, and gives a relation between nth minimal errors for standard and linear information in the randomized setting. Using this relation we can estimate the nth minimal error for standard information by the nth minimal error for linear information, and study the tractability and strong tractability for these two classes of information. 展开更多
关键词 信息基复杂度 多元近似 易处理性 HILBERT空间 蒙特卡罗方法 随机设置
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Applied Energy
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《建筑节能(中英文)》 CAS 2021年第6期56-56,共1页
https://www.sciencedirect.com/journal/applied-energy/vol/291/suppl/C Volume 291,1 June 2021(1) Identification of key performance indicators and complimentary load profiles for 5th generation district energy networks,b... https://www.sciencedirect.com/journal/applied-energy/vol/291/suppl/C Volume 291,1 June 2021(1) Identification of key performance indicators and complimentary load profiles for 5th generation district energy networks,by Michael-Allan Millar,Zhibin Yu,Neil Burnside,Greg Jones,Bruce Elrick,Article 116672. 展开更多
关键词 compl Burnside suppl
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修饰语形容词
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作者 朱涌河 《丽水学院学报》 1988年第Z1期115-117,共3页
在英语中,形容词属于“开放体系”(Open Set),即人们在运用语言过程中可以创造出新的词项。形容词使用非常广泛、灵活。从句法功能上看,它可以分成三类:a、中心形容词(Central Adiective)b、修饰语形容词(Attributive Adjective)c、补... 在英语中,形容词属于“开放体系”(Open Set),即人们在运用语言过程中可以创造出新的词项。形容词使用非常广泛、灵活。从句法功能上看,它可以分成三类:a、中心形容词(Central Adiective)b、修饰语形容词(Attributive Adjective)c、补语形容词(Predictive Adjcctive) 展开更多
关键词 句法功能 修饰名词 词项 系动词 compl 最高级形式 positional 修饰作用 looking 词派
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科技英语中的分隔式定语初探
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作者 周文仪 《湖北师范学院学报(哲学社会科学版)》 1988年第3期107-110,共4页
翻译是一种别具风格的艰难再创作,无论是语言文学翻译,还是科技文献翻译均如此。翻译的前提在于理解,在科技英语阅读和翻译过程中,我们首先会遇到如何正确理解原文的某些障碍,例如,词语含义,语法关系,修辞色彩,专业词汇,科技用语等,对... 翻译是一种别具风格的艰难再创作,无论是语言文学翻译,还是科技文献翻译均如此。翻译的前提在于理解,在科技英语阅读和翻译过程中,我们首先会遇到如何正确理解原文的某些障碍,例如,词语含义,语法关系,修辞色彩,专业词汇,科技用语等,对其中的句子结构的判断与分析则是很关键的一环,因为这直接影响到译文能否晓畅, 展开更多
关键词 科技英语 文献翻译 修辞色彩 语言文学 关系代词 先行词 语法关系 things 中所 compl
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I Was Touched
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作者 任珂仪 赖梦婷(指导) 《疯狂英语(双语世界)》 2022年第4期72-73,共2页
In a science class of the second semester on the third grade,I received four silkworms from my science teacher.At first,I looked at the caterpillars like black baby silkworms,and I didn’t dare to touch them.However,w... In a science class of the second semester on the third grade,I received four silkworms from my science teacher.At first,I looked at the caterpillars like black baby silkworms,and I didn’t dare to touch them.However,when I saw them in the humble box I built,not minding the humbleness and the narrow space of the“house”and living hard;when I saw them not afraid of food mulberry leaves in huge contrast of their body size,and tirelessly willing to be“foodie”;when I saw them clumsily crawling forward in spite of their slow footsteps;when I saw their diligent efforts to grow plump at an amazing speed and still not complacent wanting to grow further,I didn’t fear them anymore.I found that they were very cute,and I affectionately called them Silkworm Babies. 展开更多
关键词 STEPS NARROW compl
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Continuous Midwifery Nursing Measures and Effect of Vaginal Trial Delivery in Pregnant Women with Scar Uterus
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作者 TU Xinyi 《外文科技期刊数据库(文摘版)医药卫生》 2021年第10期495-497,共5页
Objective: to analyze the effect of continuous midwifery nursing and routine nursing on vaginal trial labor. Methods: the sample size was 90 cases, all of which were pregnant women with scar uterus. They were randomly... Objective: to analyze the effect of continuous midwifery nursing and routine nursing on vaginal trial labor. Methods: the sample size was 90 cases, all of which were pregnant women with scar uterus. They were randomly divided into control group and observation group. Routine intervention was applied in the control group, and continuous midwifery intervention was applied in the whole process of observation group. Results: observation group were significantly better, P < 0.05. Conclusion: the whole process of continuous midwifery nursing effect is better. 展开更多
关键词 scar uterus vaginal trial delivery the whole process of continuous midwifery nursing LABOR compl
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Polydatin-Mediated Inhibition of HSP90α Disrupts NLRP3 Complexes and Alleviates Acute Pancreatitis
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作者 Jiashu Yang Chenyang Jiao +6 位作者 Nannan Liu Wen Liu Yueyao Wang Ying Pan Lingdong Kong Wenjie Guo Qiang Xu 《Research》 2025年第3期652-671,共20页
The NLRP3 inflammasome plays a critical role in various inflammatory conditions.However,despite extensive research in targeted drug development for NLRP3,including MCC950,clinical success remains elusive.Here,we disco... The NLRP3 inflammasome plays a critical role in various inflammatory conditions.However,despite extensive research in targeted drug development for NLRP3,including MCC950,clinical success remains elusive.Here,we discovered that the activated NLRP3 inflammasome complex(disc-NLRP3)and the activating mutation L351P exhibited resistance to MCC950.Through investigations using the small-molecule compound polydatin,HSP90αwas found to stabilize both the resting(cage-NLRP3)and activated state(disc-NLRP3)of NLRP3 complexes,sustaining its activation.Our mechanistic studies revealed that polydatin specifically targets HSP90α,binding to it directly and subsequently interfering with the HSP90α-NLRP3 interaction.This disruption leads to the dissipation of cage-NLRP3,disc-NLRP3 complexes and NLRP3 L351P.Importantly,genetic and pharmacological inactivation of HSP90αeffectively reduced NLRP3 inflammasome activation and alleviated cerulein-induced acute pancreatitis.These therapeutic effects highlight the clinical potential of HSP90αinhibition.Our findings demonstrate that HSP90αis crucial for the stability of both the resting and activated states of the NLRP3 inflammasome during its sustained activation,and targeting HSP90αrepresents a promising therapeutic strategy for diseases driven by the NLRP3 inflammasome. 展开更多
关键词 activating mutation l p activated nlrp inflammasome Acute pancreatitis nlrp compl targeted drug development nlrp inflammasome POLYDATIN HSP
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Nd(EDTA)与酸性媒介黄2G的混配络合反应动力学和反应机理
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作者 张旭 张华麟 《复旦学报(自然科学版)》 CAS CSCD 北大核心 1994年第1期105-108,共4页
研究了NdY(Y=EDTA)与酸性媒介黄2G[2-羟基-5-(4-苯磺基)偶氮基苯甲酸的钠盐,NaH2L·2H2O]在pH7.2~9.2及离子强度0.25mol/kg(NaNO3)时混配络合物的生成反应动力学.实... 研究了NdY(Y=EDTA)与酸性媒介黄2G[2-羟基-5-(4-苯磺基)偶氮基苯甲酸的钠盐,NaH2L·2H2O]在pH7.2~9.2及离子强度0.25mol/kg(NaNO3)时混配络合物的生成反应动力学.实验求得NdY与HL及L的反应速率常数(k1,k-1及k2,k-2).混配给合物生成常数的计算值KNdYL(等于k2/k-2)与分光光度法求得的数值基本一致.还研究了混配给合物NdYL的酸水解动力学行为. 展开更多
关键词 络合物 反应机理 酸性媒介黄
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Limit Theorems for Chaitin Complexity
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作者 杨恩辉 《Chinese Science Bulletin》 SCIE EI CAS 1993年第5期361-365,共5页
1 Statement of Limit Theorems Let A={a<sub>1</sub>,…, a<sub>|A|</sub>} be a finite alphabet, B={0, 1}, and N={0, 1,…}. By A<sup>n</sup>(A<sup>∞</sup>, resp.), we de... 1 Statement of Limit Theorems Let A={a<sub>1</sub>,…, a<sub>|A|</sub>} be a finite alphabet, B={0, 1}, and N={0, 1,…}. By A<sup>n</sup>(A<sup>∞</sup>, resp.), we denote the set of words with the length n(∞, resp.) from the alphabet A; let A<sup>*</sup>= A<sup>n</sup>. B<sup>n</sup>, B<sup>∞</sup> and B<sup>*</sup> are defined similarly. A<sup>n</sup>(A<sup>∞</sup>, resp.) is also considered to be the n-fold (infinite, resp.) Cartesian product of A. If x=(x<sub>i</sub>) is a finite or infinite 展开更多
关键词 Chaitin complesity Shamon ENTROPY RATE of SOURCES UNIVERSAL noiseless coding.
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法语被动态中引出施动者补语的介词par与de
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作者 张来 《法语学习》 2015年第5期20-22,共3页
被动态是法语语法中非常重要的一部分。与英语不同的是,法语被动态中引出施动者补语的介词并不是唯一的,而是par和de这两个介词中的一个。这在无形之中将此语法点一定程度地复杂化,并且加大了初学者学习被动态的难度。
关键词 被动态 DE PAR 施动者 语法点 选择问题 compl usage 无形之中 positions
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A RESULT ON ZEROES OF EXPONENTIAL SYSTEMS
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作者 高堂安 王则柯 《Chinese Science Bulletin》 SCIE EI CAS 1989年第23期2016-2017,共2页
Let E: C^n→C^n be an exponential system, where C^n is an n-dimensional complex space. By an exponential system we mean that each term in every equation is of the
关键词 EXPONENTIAL assume tenne compl CONTINUATION WRITE LETTER
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ON AN INEQUALITY OF SEMI-HYPONORMAL OPERATOR SPECTRUM
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作者 李绍宽 《Chinese Science Bulletin》 SCIE EI CAS 1981年第4期293-296,共4页
The operator T=UP on ttilbert space is called ψ-quasi-hyponormal, if it satisfies ψ(P)—U_ψ(P)U=D_ψ≥0. For the invertible ψ-quasi-hyponormal operator T and the scale function ψ satisfying the condition that the... The operator T=UP on ttilbert space is called ψ-quasi-hyponormal, if it satisfies ψ(P)—U_ψ(P)U=D_ψ≥0. For the invertible ψ-quasi-hyponormal operator T and the scale function ψ satisfying the condition that the function t/ψ(t) is 展开更多
关键词 satisfying QUASI OPERATORS UNITARY 圣一 气户 compl decom noted 二甲
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