检索结果-南通市图书馆

中南石油地质科技情报 1989年第2期 56-72,13页

作者： bark.,Jf 杨爱棠

The hypoglycemic effect of Lagerstroemia indica *** Lagerstroemia indica ***(Nichols.)*** vitro and in vivo

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

未来食品学报(英文) 2023年第3期3卷 273-277页

作者： Meifang Chang Adel f.Ahmed Lili Cui National R&D Center for Edible fungus Processing Technology Henan UniversityKaifeng 475004China functional food Engineering Technology Research Center Kaifeng 475004China Medicinal and Aromatic Plants Researches Department Horticulture Research InstituteAgricultural Research CenterGiza 12619Egypt Joint International Research Laboratory of food&Medicine Resource function Henan ProvinceKaifeng 475004China

Lagerstroemia indica *** a high medicinal value,its bark,leaves and flowers can be used as *** flowers are reddish,purple,or white,thereinto,the white one is called *** ***(Nichols.)Rehd.,which is a forma of *** this paper,the hypoglycemic effects of different extracts from flowers of ***(LIf)and *** ***(Nichols.)Rehd.(LIAf)were investigated byα-glucosidase inhibitory method in vitro and alloxan-induced diabetic mice model in vivo,*** results in vitro showed that ethyl acetate extracts(EA)of LIf and LIAf(IC_(50)=4.45 and 4.09µg/mL,resepectively)had the highest inhibitory activity ofα-glucosidase,and followed by n-butyl alcohol extracts(BU)(IC_(50)=17.01 and 14.58µg/mL,respectively),and the last was petroleum ether extracts(PE)(IC_(50)=103.29 and 112.47µg/mL,respectively),the activities of all extracts were higher than that of the positive control(acarbose,IC_(50)=1278.83µg/mL).The results in vivo showed that compared with the model control group,each dose group of LIf could significantly(Pfasting blood glucose,total cholesterol(TC)level and malondialdehyde(MDA)content in diabetic mice and increase superoxide dismutase(SOD)level(Pf LIf could significantly(Pf LIAf could significantly(Pfasting blood glucose,TC level and increase SOD level in *** dose groups of LIAf could significantly(Pf and LIAf had effective prevention and treatment effects on the development for diabetes.

关键词： Lagerstroemia indica L. Lagerstroemia indica L.f.alba(Nichols.)Rehd. α-Glucosidase inhibitory activity Diabetes

一种预测多组分水—气交替注入过程中粘性指进的模型

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国外石油地质 1994年第4期16卷 39-51页

作者： bark.,JW 吴锦莲

本文介绍了作者研制的快速响应温度传感器，提出了应用该传感器测试倒拖运行柴油机缸内气体和壁面瞬态温度，进而研究局部表面瞬时气流特征速度的新方法。在此基础上，阐明确定柴油机缸内局部对流换热瞬时气波特征速度的可能性。针对标... 详细信息

本文介绍了作者研制的快速响应温度传感器，提出了应用该传感器测试倒拖运行柴油机缸内气体和壁面瞬态温度，进而研究局部表面瞬时气流特征速度的新方法。在此基础上，阐明确定柴油机缸内局部对流换热瞬时气波特征速度的可能性。针对标准管道运用激光测速法对本文提出的气流速度测量方法进行了实验验证，本文最后介绍了对倒拖运行风冷柴油机缸内气流特征速度和对流换热热流密度的研究结果。

关键词：油田水气交替注入粘性指进

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

注意力缺损式过度兴奋失调症

科学（中文版） 1998年第12期 1-6页

作者： bark.,RA 冉隆华马萨诸塞大学伍斯特医学中心

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

共线对称四极排列的探测深度

物探化探译丛 1992年第3期 7-13页

作者： bark.,RD 黄力军

Physical contact, volatiles, and acoustic signals contribute to monogamy in an invasive aggregating bark beetle

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2020年第6期27卷 1285-1297页

作者： Zhu-Dong Liu Guo-Bing Mi Kenneth f.Raffa Jiang-Hua Sun State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijingChina Erdaochuan forest Station of Guandi Mountain forest Bureau WenshuiShanxi ProvinceChina Department of Entomology University of WisconsinMadisonWlUSA University Academy of Chinese Academy of Sciences BeijingChina Center for Excellence in Biotic Interactions Chinese Academy of SciencesBeijingChina

The behavioral strategies and mechanisms by which some insects maintain monogamous mating systems are not well *** investigated the mating system of the bark beetle Dendroctonus valens,and identified several contributing *** and laboratory observations suggest the adults commonly form permanent bonds during host ***,it showed mated females that remained paired with males produced more offspring than mated females that were alone in *** bioassays,a second female commonly entered a gallery constructed by a prior *** show she commonly reached the location of the first female,but they did not engage in actual ***,the second female typically departs to form her own *** signaling likewise does not appear to influence female-female encounters,based on controlled muting *** the intruder appears to perceive the residents presence by physical *** acoustic signals and volatiles released by females during gallery constructing were shown to attract *** a male joined a female in a gallery,the male-produced aggressive sounds,which were shown by playback to deter other males from entering the *** female-female interactions,resident males use their head and rear to push intruders out of ***,volatiles released by males during feeding repelled intruding males,discouraging them from entering the *** also construct plugs that block the entrance,which may prevent subsequent males and predators from entering the ***,*** has evolved multifaceted mechanisms contributing to single pairings that confer benefits to both sexes.

关键词： acoustic signals behavioral assay Dendroctonus valens mating system pheromones rivalry