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浅谈“摇表”在电子测量中的扩展应用 被引量:2
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作者 刘玲 谢喜民 《家电检修技术》 2003年第7期36-37,共2页
“摇表”是电工应用中必不可少的工具。广泛应用于电机等各种绝缘电阻的测量,很少有人想到它在电子测量方面的应用。其实,在电子测量方面特别是在业余条件下如果我们能将万用表和“摇表”配合使用,将如虎添翼,它们能模拟“晶体管图示特... “摇表”是电工应用中必不可少的工具。广泛应用于电机等各种绝缘电阻的测量,很少有人想到它在电子测量方面的应用。其实,在电子测量方面特别是在业余条件下如果我们能将万用表和“摇表”配合使用,将如虎添翼,它们能模拟“晶体管图示特性仪”等专业贵重仪器,完成以前单独使用万用表不能完成的电子元件测试实验。下面,笔者将多年来在此方面的扩展应用总结成文,供大家互相交流探讨。 展开更多
关键词 电子测量 携带式兆欧 万用 “摇表” 彩电 保护电路 电路元件
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The Genus Stenochironomus Kieffer(Diptera:Chironomidae) with Three Newly Recorded Species from China 被引量:2
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作者 齐鑫 施时迪 +1 位作者 林晓龙 王新华 《Entomotaxonomia》 CSCD 北大核心 2011年第3期220-230,共11页
The genus Stenochironomus from China,including 10 species,is reviewed.Three species,S.koreanus Borkent,S.maculatus Borkent,and S.totifuscus Sublette are re-described and recorded from China for the first time.One spec... The genus Stenochironomus from China,including 10 species,is reviewed.Three species,S.koreanus Borkent,S.maculatus Borkent,and S.totifuscus Sublette are re-described and recorded from China for the first time.One species misidentification is corrected.A key to the males of Stenochironomus in China is given. 展开更多
关键词 DIPTERA CHIRONOMIDAE Stenochironomus new record key China
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First report of the genus Endotribelos Grodhaus, 1987 (Diptera: Chironomidae) from China, with description of a new species
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作者 齐鑫 施时迪 +1 位作者 林晓龙 王新华 《Entomotaxonomia》 CSCD 北大核心 2013年第4期284-289,共6页
Endotribelos Grodhaus, 1987 is recorded for the first time in China. The adult male of E. redimiculum sp. nov. is described and illustrated based on specimens collected from Zhejiang Province. A key to the males of th... Endotribelos Grodhaus, 1987 is recorded for the first time in China. The adult male of E. redimiculum sp. nov. is described and illustrated based on specimens collected from Zhejiang Province. A key to the males of this genus worldwide is given. 展开更多
关键词 NEMATOCERA CHIRONOMIDAE key TAXONOMY
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Trefoil factors:Tumor progression markers and mitogens via EGFR/MAPK activation in cholangiocarcinoma 被引量:16
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作者 Kanuengnuch Kosriwong Trevelyan R Menheniott +3 位作者 Andrew S Giraud Patcharee Jearanaikoon Banchob Sripa Temduang Limpaiboon 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第12期1631-1641,共11页
AIM:To investigate trefoil factor(TFF) gene copy number,mRNA and protein expression as potential biomarkers in cholangiocarcinoma(CCA).METHODS:TFF mRNA levels,gene copy number and protein expression were determined re... AIM:To investigate trefoil factor(TFF) gene copy number,mRNA and protein expression as potential biomarkers in cholangiocarcinoma(CCA).METHODS:TFF mRNA levels,gene copy number and protein expression were determined respectively by quantitative reverse transcription polymerase chain reaction(PCR),quantitative PCR and immunohistochemistry in bile duct epithelium biopsies collected from individuals with CCA,precancerous bile duct dysplasia and from disease-free controls.The functional impact of recombinant human(rh) TFF2 peptide treatment on proliferation and epidermal growth factor receptor(EGFR) /mitogenactivated protein kinase(MAPK) signaling was assessed in the CCA cell line,KMBC,by viable cell counting and immunoblotting,respectively.RESULTS:TFF1,TFF2 and TFF3 mRNA expression was significantly increased in CCA tissue compared to disease-free controls,and was unrelated to gene copy number.TFF1 immunoreactivity was strongly increased in both dysplasia and CCA,whereas TFF2 immunoreactivity was increased only in CCA compared to diseasefree controls.By contrast,TFF3 immunoreactivity was moderately decreased in dysplasia and further decreased in CCA.Kaplan-Meier analysis found no association of TFF mRNA,protein and copy number with age,gender,histological subtype,and patient survival time.Treatment of KMBC cells with rhTFF2 stimulated proliferation,triggered phosphorylation of EGFR and downstream extracellular signal related kinase(ERK),whereas co-incubation with the EGFR tyrosine kinase inhibitor,PD153035,blocked rhTFF2-dependent proliferation and EGFR/ERK responses.CONCLUSION:TFF mRNA/protein expression is indicative of CCA tumor progression,but not predictive for histological sub-type or survival time.TFF2 is mitogenic in CCA via EGFR/MAPK activation. 展开更多
关键词 CHOLANGIOCARCINOMA Trefoil factors Liver fluke Epidermal growth factor receptor Mitogen-activated protein kinase
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Nostocoladius, a newly recorded subgenus of Cricotopus van der Wulp(Diptera: Chironomidae) from Oriental Region
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作者 李杏 林晓龙 王新华 《Entomotaxonomia》 CSCD 北大核心 2014年第3期201-205,共5页
The subgenus Nostocoladius of Cricotopus is recorded in Oriental China for the first time. The detail redeseription of Cricotopus (Nostocoladius) lygropis Edwards is presented. C. (N..) seiryuabeus Sasa, Suzuki &... The subgenus Nostocoladius of Cricotopus is recorded in Oriental China for the first time. The detail redeseription of Cricotopus (Nostocoladius) lygropis Edwards is presented. C. (N..) seiryuabeus Sasa, Suzuki & Sakai is treated as a junior synonym of C. (N.) lygropis. A key to the known male imagines in the world of the subgenus Nostocoladius is given. 展开更多
关键词 NEMATOCERA CULICOIDEA Orthocladiinae taxonomy key
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