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罗红霉素的B-Z振荡行为的研究

中国科技信息 2013年第23期 201-203页

作者：赖红伟曹宏梅董顺福韩丽琴吉林医药学院

研究罗红霉素药物的B-Z振荡行为。方法将不同浓度罗红霉素加入到经典的B-Z振荡体系中,考察其对周期和振幅的影响。结果罗红霉素对振荡体系产生了明显的扰动,周期和振幅的变化率与所加入罗红霉素的浓度呈良好的线性关系,其浓度分别在6.5... 详细信息

研究罗红霉素药物的B-Z振荡行为。方法将不同浓度罗红霉素加入到经典的B-Z振荡体系中,考察其对周期和振幅的影响。结果罗红霉素对振荡体系产生了明显的扰动,周期和振幅的变化率与所加入罗红霉素的浓度呈良好的线性关系,其浓度分别在6.5×10-7;.75×10-4g/mL和4.0×10-7;.3×10-4g/mL,相关系数分别为0.9955和0.9971;检出限为3.0×10-8g/mL。结论建立了一种简便的罗红霉素化学振荡的电化学方法,对其临床用药具一定的指导意义。

关键词：振荡行为罗红霉素 B-Z振荡化学振荡

Relationship between giant magnetoresistance of NiFe/Cu multilayers and their microstructures

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Chinese Science Bulletin 1998年第15期43卷 1268-1271页

作者： hongwei Jiang Guangming Luo Zhenhong Mai Wuyan lai Chinese Acad Sci Inst Phys State Key Lab Magnetism Beijing 100080 Peoples R China

The (111)_orientated NiFe/Cu multilayers were prepared by magnetron sputtering method. At room temperature, saturation magnetoresistances of NiFe/CU multilayers oscillate as a function of Cu spacer layer thickness. Two peak GMR values of 19 4%, 11 6% and 11 2%, 1% appear, respectively, at Cu sublayer thickness of t Cu =1 0, 2 2 nm while the deposition pressures are 0 25 and 0 45 Pa. X_ray small_angle reflections and diffuse scattering at Cu K_edge (8 979 keV) by synchrotron radiation source were used to characterize the interfacial roughness. Diffraction anomalous fine_structure scattering (DAFS) was performed to investigate the local structure of NiFe and Cu sublayers. Results show that the deposition pressure has effect on interfacial roughness of the samples obviously, and the interfacial roughness also affects the GMR values of the samples strongly.

关键词： multilayer GMR synchrotron radiation interface roughness.

Aftershock sequence relocation of the 2021 M_(S)7.4 Maduo Earthquake, Qinghai, China

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Science China Earth Sciences 2021年第8期64卷 1371-1380页

作者： Weilai WANG Lihua FANG Jianping WU hongwei TU Liyi CHEN Guijuan lai Long ZHANG Institute of Geophysics China Earthquake AdministrationBeijing 100081China Key Laboratory of Earthquake Source Physics China Earthquake AdministrationBeijing 100081China Qinghai Earthquake Agency Xining 810001China

The 2021 Qinghai Maduo M_(S)7.4 earthquake was one of the strongest earthquakes that occurred in the Bayan Har block of the Tibetan Plateau during the past 30 years,which spatially filled in the gap of strong earthquake in the eastern section of the northern block *** this study,the aftershock sequence within 8 days after the mainshock was relocated by double difference *** results show that the total length of the aftershock zone is approximately 170 km;the mainshock epicenter is located in the center of the aftershock zone,indicating a bilateral *** aftershocks are mainly distributed along NWW direction with an overall strike of 285°.The focal depth profiles indicate that the seismogenic fault is nearly vertical and dips to southwest or northeast in different sections,indicating a complex *** is an aftershock gap located to the southeast of the mainshock epicenter with a scale of approximately 20 *** the eastern end of the aftershock zone,horsetaillike branch faults show the terminal effect of a large strike-slip *** is a NW-trending aftershock zone on the north side of the western section,which may be a branch fault triggered by the *** location of the aftershock sequence is close to the eastern section of the Kunlun Mountain Pass-Jiangcuo(KMPJ)*** sequence overlaps well with surface trace of the KMPJ *** speculate that the KMPJ fault is the main seismogenic fault of the M_(S)7.4 Maduo earthquake.

关键词： Maduo earthquake Aftershock sequence Double-difference location Kunlun Mountain Pass-Jiangcuo fault

膨润土复合丙烯酰胺超强吸水剂的合成与性能研究

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云南化工 2007年第3期34卷 26-30,40页

作者：赖红伟曹宏梅崔桂花朱志国崔湘浩吉林医药学院吉林吉林132013

为探讨膨润土及其添加量、交联剂量、引发剂量、共聚合温度及中和度对吸水剂吸水性能的影响,采用水溶液聚合的方法,以膨润土和丙烯酰胺为主要原料,N,N'-亚甲基双丙烯酰胺为交联剂,过硫酸铵为引发剂,合成出膨润土复合丙烯酰胺超强吸水剂... 详细信息

为探讨膨润土及其添加量、交联剂量、引发剂量、共聚合温度及中和度对吸水剂吸水性能的影响,采用水溶液聚合的方法,以膨润土和丙烯酰胺为主要原料,N,N'-亚甲基双丙烯酰胺为交联剂,过硫酸铵为引发剂,合成出膨润土复合丙烯酰胺超强吸水剂。该吸水剂吸水倍率和吸盐水倍率分别为920和85倍。

关键词：膨润土丙烯酰胺水溶液聚合超强吸水剂

Effect of Cu surface segregation on the exchange coupling field of NiFe/FeMn bilayers

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Chinese Science Bulletin 2001年第22期46卷 1934-1936页

作者： LI Minghua YU Guanghua ZHU Fengwu JIANG hongwei lai Wuyan Department of Materials Physics Beijing University of Science and TechnologyBeijing 100083China Institute of Physics Chinese Academy of SciencesBeijing 100080China

The NiFe/FeMn bilayers with different buffer layers (Ta or Ta/Cu) were prepared by magnetron sputtering. Results show that the exchange coupling field of NiFe/FeMn fllms with Ta buffer is higher than that of the films with Ta/ Cu buffer. We analysed the reasons by investigating the crystallographic texture, surface roughness and surface segregation of both fllms, respectively. We found that the decrease of the exchange coupling fields of NiFe/FeMn fllms with Ta/ Cu buffer layers was mainly caused by the Cu surface segregation on NiFe surface.

关键词： NiFe/FeMn exchange coupling field texture surface roughness surface segregation.

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腹股沟管状皮瓣移植术后病人的护理

护理研究 2000年第4期14卷 167-167页

作者：赖红卫邓慧素浙江省松阳县人民医院 323400

我科于1997年-1999年5月对6例病人行腹股沟管状皮瓣移植术,均获成功,现将术后护理介绍如下:1 临床资料本组6例,男5例,女1例,年龄10岁～39岁,拇指、食指套状撕脱各1例,拇指皮肤缺损1例,食指皮肤缺损2例,食指末节皮肤坏死1例.均行腹股沟... 详细信息

我科于1997年-1999年5月对6例病人行腹股沟管状皮瓣移植术,均获成功,现将术后护理介绍如下:1 临床资料本组6例,男5例,女1例,年龄10岁～39岁,拇指、食指套状撕脱各1例,拇指皮肤缺损1例,食指皮肤缺损2例,食指末节皮肤坏死1例.均行腹股沟管状皮瓣移植治愈出院,平均住院32 d.

关键词：腹股沟管状皮瓣移植术护理手术后

Identification and Fine Mapping of rhm1 Locus for Resistance to Southern Corn Leaf Blight in Maize

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Journal of Integrative Plant Biology 2012年第5期54卷 321-329页

作者： Yuanzeng Zhao Xiaomin Lu Chaoxian Liu Haiying Guan Mei Zhang Zhongfeng Li hongwei Cai Jinsheng lai State Key Laboratory of Agrobiotechnology and National Maize Improvement Center Department of Plant Genetics and BreedingChina Agricultural UniversityBeijing 100193China Department of Life Science and Technology Henan Institute of Science and TechnologyXinxiang 453003China Henan Academy of Agricultural Sciences Zhengzhou 450002China

rhml is a major recessive disease resistance locus for Southern corn leaf blight （SCLB）. To further narrow down its genetic position, F2 population and BCIFI population derived from the cross between resistant （H95rhm） and susceptible parents （H95） of maize （Zea mays） were constructed. Using newly developed markers, rhml was initially delimited within an interval of 2.5 Mb, and then finally mapped to a 8.56 kb interval between InDel marker IDP961-503 and simple sequence repeat （SSR） marker A194149--1. Three polymorphic markers IDP961-504, IDP B2-3 and A194149-2 were shown to be co-segregated with the rhml locus. Sequence analysis of the 8.56 kb DNA fragment revealed that it contained only one putative gene with a predicted amino acid sequence identical to lysine histidine transporter 1 （LHT1）. Comparative sequence analysis indicated that the LHT1 in H95rhrn harbors a 354 bp insertion in its third exon as compared with that of susceptible alleles in B73, H95 and Mo17. The 354 bp insertion resulted in a truncation of the predicted protein of candidate resistance allele （LHT1-H95rhm）. Our results strongly suggest LHTI as the candidate gene for rhml against SCLB. The tightly linked molecular markers developed in this study can be directly used for molecular breeding of resistance to Southern corn leaf blight in maize.

关键词： Bipolaris maydis fine-mapping maize rhml Southern corn leaf blight Zea mays.

Underlying slip/twinning activities of Mg-xGd alloys investigated by modified lattice rotation analysis

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Journal of Magnesium and Alloys 2023年第3期11卷 998-1015页

作者： Biaobiao Yang Chenying Shi Xianjue Ye Jianwei Teng Ruilin lai Yujie Cui Dikai Guan hongwei Cui Yunping Li Akihiko Chiba State Key Lab for Powder Metallurgy Central South UniversityChangsha 410083China Institute for Materials Research Tohoku UniversitySendai 980-8577Japan Department of Materials Science and Engineering University of SheffieldMappin StreetSheffield S13JDUnited Kingdom School of Materials Science and Engineering Shandong University of TechnologyZibo 255000China

The inconsistencies regarding the fundamental correlation between Gd content and slip(twinning)activities of Mg alloys appeal further ***,the traditional slip dislocations analysis by TEM is time-consuming,and that by SEM/EBSD cannot recognize the partial slip *** urge a more efficient and comprehensive approach to easily distinguish all potential slip modes occurred concurrently in alloy *** we report a modified lattice rotation analysis that can distinguish all slip systems and provide statistical results for slip activities in Mg alloy *** this method,the high ductility of Mg-Gd alloy ascribed to the enhanced non-basal slips,cross-slip,and postponed twinning activities by Gd addition is quantitatively clarified.

关键词： Mg-Gd alloy Non-basal slips Postponed twinning Grain boundary segregation Modified lattice rotation analysis

微生物降解土壤中拟除虫菊酯类农药残留研究进展

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内蒙古林业科技 2024年第3期50卷 59-64页

作者：来宏伟冉新炎樊梅娜陶宁耿娜杨美玲田佳治王丽荣山东碧蓝生物科技有限公司山东泰安271000

拟除虫菊酯类农药是目前我国使用量最大的农药之一,因不合理使用导致其在土壤中残留,并对环境造成严重污染。微生物降解技术相比其他修复方式具有降解效率高、无二次污染等优点,是目前针对土壤中拟除虫菊酯类农药残留修复的重要手段。... 详细信息

拟除虫菊酯类农药是目前我国使用量最大的农药之一,因不合理使用导致其在土壤中残留,并对环境造成严重污染。微生物降解技术相比其他修复方式具有降解效率高、无二次污染等优点,是目前针对土壤中拟除虫菊酯类农药残留修复的重要手段。本文从拟除虫菊酯类农药在土壤中的残留情况出发,概述了微生物降解土壤中拟除虫菊酯类农药的途径,分析了农药性质、土壤环境、微生物协同等影响降解效率的因素。讨论了目前微生物降解研究存在的问题,并对今后的研究方向提出了建议。

关键词：农药微生物降解影响因素途径