检索结果-南通市图书馆

Green Synthesis and Catalysis 2022年第3期3卷 298-301页

作者： Yufeng Liu linzhou wang Yingjun Li Baode Ma Gen-Qiang Chen Xumu Zhang Medi-X Pingshan Guangdong Provincial Key Laboratory of Catalysisand Department of ChemistrySouthern University of Science and TechnologyShenzhen 518000China Shenzhen Bay Laboratory Shenzhen 518132China Academy for Advanced Interdisciplinary Studies and Southern University of Science and Technology Shenzhen 518000China

A highly efficient and enantioselective method for the asymmetric reductive amination ofβ-keto phosphine de-rivatives was disclosed,and the correspondingβ-amino phosphine oxides could be obtained in high yields(up to 97%yield)and excellent enantioselectivities(up to 97%ee).Moreover,the reaction worked well on a gram scale,indicating that our protocol has potential applications in the synthesis of chiral ligands and organocatalysts.

关键词： Asymmetric reductive amination Chiralβ-amino phosphine Ruthenium-catalysed Ammonium salt

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

SQS的二次跃迁与死区的测量

核技术 1989年第6期12卷 317-322页

作者：王临洲李黎力中国科学院高能物理研究所

本文测量了正比区、饱和雪崩区和SQS区的气体放大特性曲线;测量了SQS工作模式的二次跃迁;测量了不同气体和比份时死区的大小,并对以SOS模式工作的探测器作了寿命试验。

关键词：气体探测器二次跃迁死区溅蚀

在线全文

学校读者我要写书评

暂无评论

正比室一些特性的研究

核技术 1984年第1期 26-31页

作者：王临洲李黎力中国科学院高能物理研究所

本文描述了簇射计数器中的正比室模型。研究了正比室所使用的气体CH4/Ar和Co2/Ar的特性。使用55FeX射线源研究了气体放大系数和能量分辨率与气体成份和丝直径的关系。也给出了正比室坪特性与气体成份的关系。关于55FeX射线谱的两个峰,... 详细信息

本文描述了簇射计数器中的正比室模型。研究了正比室所使用的气体CH4/Ar和Co2/Ar的特性。使用55FeX射线源研究了气体放大系数和能量分辨率与气体成份和丝直径的关系。也给出了正比室坪特性与气体成份的关系。关于55FeX射线谱的两个峰,提出了与文献[4]不同的解释。

关键词：簇射计数器正比室气体放大系数能量分辨率坪特性

偶氮胂Ⅲ—Ba(Ⅱ)共振散射光谱法测定人血清蛋白

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

广东微量元素科学 2010年第9期17卷 29-33页

作者：赵长容方芳连国军陈露茜王林洲温州医学院环境与公共卫生学院浙江温州325035

在pH 3.0~3.8的BR缓冲溶液中,偶氮胂Ⅲ-Ba（Ⅱ）与蛋白质结合形成复合物,导致体系的共振散射信号增强,据此建立了蛋白质测定的共振散射光谱法。结果表明,在优化的实验条件下,牛血清白蛋白（BSA）的线性范围为0~1.0 mg/L,检出限为21.4μg... 详细信息

在pH 3.0~3.8的BR缓冲溶液中,偶氮胂Ⅲ-Ba（Ⅱ）与蛋白质结合形成复合物,导致体系的共振散射信号增强,据此建立了蛋白质测定的共振散射光谱法。结果表明,在优化的实验条件下,牛血清白蛋白（BSA）的线性范围为0~1.0 mg/L,检出限为21.4μg/L;将该法用于人血清中蛋白质的测定,与医院测定结果基本一致;方法的批内精密度为2.8%（n=6）,批间精密度为3.5%（n=6）,回收率为96.0%~100.0%。

关键词：蛋白质共振散射偶氮胂Ⅲ-Ba(Ⅱ)

Novel Ag-AgBr decorated composite membrane for dye rejection and photodegradation under visible light

在线全文

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2021年第4期15卷 892-901页

作者： Yixing wang Liheng Dai Kai Qu Lu Qin linzhou Zhuang Hu Yang Zhi Xu State Key Laboratory of Chemical Engineering School of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China

Photocatalytic membranes have received increasing attention due to their excellent separation and photodegradation of organic contaminants in ***,we bound Ag-AgBr nanoparticles onto a synthesized polyacrylonitrile-ethanolamine(PAN-ETA)membrane with the aid of a chitosan(CS)-TiO_(2) layer via vacuum filtration and in-situ partial *** introduction of the CS-TiO_(2) layer improved surface hydrophilicity and provided attachment sites for the Ag-AgBr *** PAN-ETA/CS-Ti0_(2)/Ag-AgBr photocatalytic membranes showed a relatively high water permeation flux(〜47 L·m^(-2)·h^(-1)·bar^(-1))and dyes rejection(methyl orange:88.22%;congo red:95%;methyl blue:97.41%;rose bengal:99.98%).Additionally,the composite membranes exhibited potential long-term stability for dye/salt separation(dye rejection:-97%;salt rejection:-6.5%).Moreover,the methylene blue and rhodamine B solutions(20 mL,10 mg·L^(-1))were degraded approximately 90.75% and 96.81% in batch mode via the synthesized photocatalytic membranes under visible light irradiation for 30 *** study provides a feasible method for the combination of polymeric membranes and inorganic catalytic materials.

关键词： Ag-AgBr dye rejection photodegradation visible light

PROG1 acts upstream of LAZY1 to regulate rice tiller angle as a repressor

在线全文

学校读者我要写书评

暂无评论

The Crop Journal 2023年第2期11卷 386-393页

作者： Han Zhang Xiang Li Dajun Sang linzhou Huang Yuqi Song Mengchen Du Jiajia Cao Wenguang wang State Key Laboratory of Crop Biology College of Life SciencesShandong Agricultural UniversityTai’an 271018ShandongChina Institute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China

Rice tiller angle,as a component of plant architecture,affects rice grain yield via plant ***,the molecular mechanism underlying rice tiller angle remains *** report that the key domestication gene PROSTRATE GROWTH 1(PROG1)controls rice tiller angle by regulating shoot gravitropism and LAZY1(LA1)-mediated asymmetric distribution of *** as a transcriptional repressor,PROG1 negatively regulates the expression of LA1 in light-grown rice *** of LA1 partially rescued the larger tiller angle of the PROG1 complementation transgenic plant(prog1-D).Double-mutant analysis showed that PROG1 acts upstream of LA1 to regulate shoot gravitropism and tiller *** of Suppressors of lazy1(SOL1),encoding DWARF3(D3)acting in the strigolactone signal pathway,suppressed the large tiller angle of prog1-D by rescuing the transcription of *** discovery of a light-sensitive PROG1-LA1 transcription regulatory module controlling rice shoot gravitropism and tiller angle sheds light on the genetic control of rice tiller angle.

关键词： Rice Tiller angle Gravitropism LAZY1 PROG1

在线全文

学校读者我要写书评

暂无评论

全吸收型铅玻璃切仑柯夫计数器

核技术 1981年第5期 9-14页

作者：李焕铁王临洲李黎力周月华朱永生中国科学院高能物理研究所

本文主要叙述用ZF1型铅玻璃作的全吸收型铅玻璃切仑柯夫计数器及其性能和实验结果,同时亦找出用宇宙射线μ子进行能量刻度的经验途径。

关键词：铅玻璃厚度铅硅酸盐玻璃计数器记录仪吸收型

Retina cell atlases of multiple species and an online platform for retina cell-type markers

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Genetics and Genomics 2022年第3期49卷 262-265页

作者： Zaoxu Xu Changzheng wang Min Chen Yuting Yuan linzhou Li Zhen Huang Yue Yuan Huanming Yang Qi wang Xingliang Zhang College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China BGI-Shenzhen ShenzhenGuangdong 518083China Department of Computer Science City University of Hong KongHong Kong 999077China Tsinghua-Berkeley Shenzhen Institute(TBSI) Tsinghua UniversityShenzhenGuangdong 518055China Department of Physiology School of Basic Medical SciencesBinzhou Medical UniversityYantaiShandong 264003China Fujian Key Laboratory of Developmental and Neural Biology College of Life SciencesFujian Normal UniversityFuzhouFujian 350117China Cuiying Biomedical Research Center Lanzhou University Second HospitalLanzhouGansu 730010China Institute of Pediatrics Department of Pediatric SurgeryShenzhen Children's HospitalShenzhenGuangdong 51803&China Department of Pediatrics The Affiliated Hospital of Guangdong Medical UniversityZhanjiangGuangdong 524001China

The retina is a complex visual tissue that perceives light signals because of an exquisite orchestration of high cellular complexity(Fig. 1A). It is of great significance to explore the transcriptome diversity of each cell type for comprehensive understanding(Voigt et al.,2020b). Unlike conventional sequencing methods, single-cell RNAsequencing(scRNA-seq) and single-nucleus RNA-sequencing(snRNA-seq) accurately profile transcriptomic characterization of individual whole cells and nuclei, respectively.

关键词： cell retina

LAZY4 acts additively with the starch-statolithdependent gravity-sensing pathway to regulate shoot gravitropism and tiller angle in rice

在线全文

学校读者我要写书评

暂无评论

Plant Communications 2024年第10期5卷 154-165页

作者： Wenguang wang linzhou Huang Yuqi Song Songtao Gui Jiajia Cao Han Zhang Mengchen Du Jiaze Chen Zihao wang Jie Zhou Xiangbing Meng Dali Zeng Jiayang Li Yonghong wang National Key Laboratory of Wheat Improvement College of Life SciencesShandong Agricultural UniversityTai’an 271018China Institute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100039China Yazhouwan National Laboratory Sanya 572024China College of Advanced Agricultural Sciences Zhejiang A&F UniversityHangzhou 311300China

Rice tiller angle is a key agronomic trait that has significant effects on the establishment of a high-yield rice ***,the molecular mechanism underlying the control of rice tiller angle remains to be ***,we characterized the novel tiller-angle gene LAZY4(LA4)in rice through map-based ***4 encodes a C3H2C3-type RING zinc-finger E3 ligase localized in the nucleus,and an in vitro ubiquitination assay revealed that the conserved RING finger domain is essential for its E3 ligase *** found that expression of LA4 can be induced by gravistimulation and that loss of LA4 function leads to defective shoot gravitropism caused by impaired asymmetric auxin redistribution upon *** analysis demonstrated that LA4 acts in a distinct pathway from the starch biosynthesis regulators LA2 and LA3,which function in the starch-statolith-dependent *** genetic analysis showed that LA4 regulates shoot gravitropism and tiller angle by acting upstream of LA1 to mediate lateral auxin transport upon *** studies reveal that LA4 regulates shoot gravitropism and tiller angle upstream of LA1 through a novel pathway independent of the LA2-LA3-mediated gravity-sensing mechanism,providing new insights into the rice tiller-angle regulatory network.

关键词： auxin shoot gravitropism tiller angle LAZY4 rice

One-step In-situ Synthesis of Vacancy-rich CoFe2O4@Defective Graphene Hybrids as Bifunctional Oxygen Electrocatalysts for Rechargeable Zn-Air Batteries

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2020年第3期36卷 479-487页

作者： wang X in ZHUANG linzhou JIA Yi ZHANG Lijie YANG Qin XU Wenjia YANG Dongjiang YAN Xuecheng ZHANG Longzhou ZHU Zhonghua BROWN Christopher L YUAN Pei YAO Xiangdong School of Environment and Science ami Queensland Micro-and Nanotechnology CentreGriffith UniversityNathan CampusQueensland 4111Australia School of Chemistry Physics and Mechanical EngineeringQueensland University of TechnologyBrisbaneQueensland 4000Australia Collaborative Innovation Center for Mahne Biomass Fibers Materials ami Textiles of Shandong ProvinceInstitute of Marine Biobased MaterialsCollege of Environmental Science and EngineeringQingdao UniversityQingdao 266071P.R.China National Engineering Research Center of Chemical Fertilizer Catalyst College of Chemical EngineeringFuzhou UniversityFuzhou 350002P.R.China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin UniversityChangchun 130012P.R.China

Developing efficient catalysts toward both oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is the core task for rechargeable metal-air *** integration of two active components should be an effective method to produce the bifunctional catalysts in principle,traditional techniques still can not attain fine tunable surface structure during material-hybridization ***,we present a facile short-time in-situ argon(Ar)plasma strategy to fabricate a high-performance bifunctional hybrid catalyst of vacancy-rich CoFe2O4 synergized with defective graphence(r-CoFe2O4@DG).Reflected by the low voltage gap of 0.79V in two half-reaction measurements,the striking capability to catalyze ORR/OER endows it excellent and durable performance in rechargeable Zn-air batteries,with a maximum power density of 155.2mW/cm^2 and robust stablility(up to 60h).Further experimental and theoretical studies validate its remarkable bifunctional energetics root from plasma-induced surface vacancy defects and interfacial charge polarization between DG and CoFe2O4.

关键词： Defect CoFe2O4 Oxygen reduction Oxygen evolution Zn-air battery