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杂交玉米新品种锋登玉7号的选育及栽培技术

南方农业 2024年第6期18卷 8-10页

作者：喻文智雷应勇王星李娇织金县农业农村局贵州织金552100

毕节市位于贵州省西北部,该地区山地多,生态条件复杂,是国家生态开发示范区,为促进当地农业生产发展,促进农民增收致富,织金县锋登农业科学研究所以外引系DT16311为母本、自选系41502为父本育成了高产优质的杂交玉米新品种锋登玉7号。

关键词：玉米锋登玉7号选育栽培技术

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Interface and surface engineering of black phosphorus: a review for optoelectronic and photonic applications

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Materials Futures 2022年第1期1卷 52-75页

作者： Haoran Mu wenzhi yu Jian yuan Shenghuang Lin Guangyu Zhang Songshan Lake Materials Laboratory DongguanGuangdong 523808People’s Republic of China

Since being rediscovered as an emerging 2D material,black phosphorus(BP),with an extraordinary energy structure and unusually strong interlayer interactions,offers new opportunities for optoelectronics and ***,due to the thin atomic body and the ease of degradation with water and oxides,BP is highly sensitive to the surrounding ***,high-quality engineering of interfaces and surfaces plays an essential role in BP-based *** this review,begun with a review of properties of BP,different strategies of interface and surfaces engineering for high ON-OFF ratio,enhanced optical absorption,and fast optical response are reviewed and highlighted,and recent state-of-the-art advances on optoelectronic and photonic devices are ***,the opportunities and challenges for future BP-related research are considered.

关键词： black phosphorus interface engineering surface engineering optoelectronics photonics

Growth of large-area atomically thin MoS2 film via ambient pressure chemical vapor deposition

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Photonics Research 2015年第4期3卷 110-114页

作者： Caiyun Chen Hong Qiao yunzhou Xue wenzhi yu Jingchao Song Yao Lu Shaojuan Li Qiaoliang Bao Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devicesand Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow UniversitySuzhou 215123China Department of Materials Engineering Monash UniversityClaytonVictoria 3800Australia

Atomically thin MoS2 films have attracted significant attention due to excellent electrical and optical *** development of device applications demands the production of large-area thin film which is still an *** this work we developed a facile method to directly grow large-area MoS2 thin film on Si O2 substrate via ambient pressure chemical vapor deposition method. The characterizations by spectroscopy and electron microscopy reveal that the as-grown MoS2 film is mainly bilayer and trilayer with high quality. Back-gate field-effect transistor based on such MoS2 thin film shows carrier mobility up to 3.4 cm2V-1s-1 and on/off ratio of 105. The large-area atomically thin MoS2 prepared in this work has the potential for wide optoelectronic and photonic device applications.

关键词： Mo Growth of large-area atomically thin MoS2 film via ambient pressure chemical vapor deposition area

Highly responsive broadband black phosphorus photodetectors

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Chinese Optics Letters 2018年第2期16卷 3-7页

作者： Yan Liu Tian Sun Weiliang Ma wenzhi yu Shivananju B.Nanjunda Shaojuan Li Qiaoliang Bao Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devicesand Collaborative Innovation Center of Suzhou Nano Science and TechnologySoochow UniversitySuzhou 215123China Department of Materials Science and Engineering Monash UniversityClayton 3800Australia

Black phosphorus(BP)is a promising material for ultrafast and broadband photodetection because of its narrow bandgap from 0.35 eV(bulk)to 1.8 eV(monolayer)and high carrier *** photodetectors based on BP with different configurations have been reported,high photosensitivity was mostly observed in the visible range.A highly efficient BP-based infrared photodetector operated in the telecom spectral range,especially at 1550 nm,has not been ***,we report a Schottky-type photodetector based on thin BP flakes,operating in a broad spectral range from visible(635 nm)to infrared(1550 nm).A responsivity as high as 230 A·W^(-1)was achieved at 1550 nm with a source-drain bias of 1 *** rise time is 4.8 ms,and the fall time is 6.8 *** light illumination and external bias,the Schottky barrier between the BP and metal was reduced,leading to efficient photocurrent *** unprecedented performance of the BP photodetector indicates intriguing potential for sensing,imaging,and optical communication.

关键词： Atomic force microscopy Infrared imaging Light beams Photodetectors Raman spectroscopy Scanning electron microscopy

Wafer-scale patterned growth of type-II Dirac semimetal platinum ditelluride for sensitive room-temperature terahertz photodetection

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InfoMat 2023年第5期5卷 17-27页

作者： Zhuo Dong wenzhi yu Libo Zhang Liu Yang Luyi Huang Yan Zhang Zeqian Ren Haoran Mu Cheng Chen Junrong Zhang Jie Li Lin Wang Kai Zhang CAS Key Laboratory of Nanophotonic Materials and Devices&Key Laboratory of Nanodevices and Applications i-LabSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhouJiangsuthe People's Republic of China School of Nano-Tech and Nano-Bionics University of Science and Technology of ChinaHefeiAnhuithe People's Republic of China Songshan Lake Materials Laboratory DongguanGuangdongthe People's Republic of China State Key Laboratory for Infrared Physics Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghaithe People's Republic of China

As the lastly unexplored electromagnetic wave,terahertz(THz)radiation has been exploited in a plenty of contexts such as fundamental research,military and civil *** recently,representative two-dimensional(2D)topological semimetal,platinum ditelluride(PtTe_(2))has attracted considerable research interest in THz detection due to its unique physical ***,to achieve practical applications,the low-cost,large-scale,controllable synthesis and efficient patterning of 2D materials are key requirements,which remain a challenge for PtTe_(2)and its photodetectors(PDs).Herein,a facile approach is developed to obtain waferscale(2-inches)patterned PtTe_(2)arrays using one-step tellurium-vapor transformation method and micro-Nano ***_(2)PD arrays are fabricated with the as-grown PtTe_(2)arrays evenly distributed on a 2-inch wafer,exhibiting high conductivity(~2.7×105 S m^(-1))and good electrical *** by the Dirac fermions,PtTe_(2)PDs achieve a broadband(0.02-0.3 THz)response with a fast response speed(~4.7μs),a high sensitivity(~47 pW Hz^(-1/2))and high-resolution transmission THz-imaging capability,which displays the potential of large-area THz array *** results are one step towards the practical applications of integrated PD arrays based on 2D materials.

关键词： patterned growth photodetection platinum ditelluride terahertz wafer-scale

Deficiency of betaine-homocysteine methyltransferase activates glucose-6-phosphate dehydrogenase(G6PD)by decreasing arginine methylation of G6PD in hepatocellular carcinogenesis

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Science China(Life Sciences) 2024年第8期67卷 1648-1665页

作者： Jie Gao Xiaoyi Shi Yaohui Sun Xudong Liu Feng Zhang Chengcheng Shi Xiao yu Zhiping Yan Long Liu Shizhe yu Jiacheng Zhang Xiaodan Zhang Shuijun Zhang wenzhi Guo Department of Hepatobiliary and Pancreatic Surgery The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China Henan Diagnosis&Treatment League for Hepatopathy The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China Henan Innovative Research Group for Hepatobiliary&Pancreatic Surgery and Digestive Organ Transplantation Zhengzhou 450052China Henan Organ Transplantation Quality Control Centre Zhengzhou 450052China Henan Engineering Technology Research Center for Organ Transplantation Zhengzhou 450052China Department of Pharmacy The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China Department of General Surgery Huashan HospitalFudan University Shanghai 200040China Cancer Metastasis Institute Fudan UniversityShanghai 200040China

Betaine-homocysteine methyltransferase(BHMT)regulates protein methylation and is correlated with tumorigenesis;however,the effects and regulation of BHMT in hepatocarcinogenesis remain largely ***,we determined the clinical significance of BHMT in the occurrence and progression of hepatocellular carcinoma(HCC)using tissue samples from 198 *** was to be frequently found(86.6%)expressed at relatively low levels in HCC tissues and was positively correlated with the overall survival of patients with *** overexpression effectively suppressed several malignant phenotypes in hepatoma cells in vitro and in vivo,whereas complete knockout of Bhmt(Bhmt^(−/−))produced the opposite *** combined proteomics,metabolomics,and molecular biological strategies and detected that Bhmt^(−/−)promoted hepatocarcinogenesis and tumor progression by enhancing the activity of glucose-6-phosphate dehydrogenase(G6PD)and PPP metabolism in DEN-induced HCC mouse and subcutaneous tumor-bearing *** contrast,restoration of Bhmt with an AAV8-Bhmt injection or pharmacological inhibition of G6PD attenuated ***,coimmunoprecipitation identified monomethylated modifications of the G6PD,and BHMT regulated the methylation of *** sequence analysis,generation and application of specific antibodies,and site-directed mutagenesis indicated G6PD methylation at the arginine residue ***,we established bidirectionally regulated BHMT cellular models combined with methylation-deficient G6PD mutants to demonstrate that BHMT potentiated arginine methylation of G6PD,thereby inhibiting G6PD activity,which in turn suppressed *** together,this study reveals a new methylation-regulatory mechanism in hepatocarcinogenesis owing to BHMT deficiency,suggesting a potential therapeutic strategy for HCC treatment.

关键词： HCC BHMT arginine methylation G6PD PPP metabolism

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商周原始瓷产地研究

中国陶瓷 2014年第5期50卷 90-92页

作者：余文质广西医科大学基础医学院南宁530021

商周原始瓷的产地问题一直是学术界研究的一个热点。通过搜集大量由中子活化分析法测定的商周原始瓷的微量元素,以及对其进行主成分分析和基于案例推理分析,对南北出土原始瓷的烧制地区进行了探讨。认为在殷墟中期以前我国南、北方原始... 详细信息

商周原始瓷的产地问题一直是学术界研究的一个热点。通过搜集大量由中子活化分析法测定的商周原始瓷的微量元素,以及对其进行主成分分析和基于案例推理分析,对南北出土原始瓷的烧制地区进行了探讨。认为在殷墟中期以前我国南、北方原始瓷的主要产地可能是江西吴城及其周围地区,在殷墟晚期商王室可能改变了原始瓷的供应来源,出现两个新的供应地。该工作为原始瓷产地研究探索了一条新的途径。

关键词：商周原始瓷中子活化分析主成分分析灰色关联分析案例推理

农民工教育与职业的匹配及其工资效应——基于城市规模视角

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中国农村经济 2020年第1期 48-64页

作者：屈小博余文智中国社会科学院人口与劳动经济研究所上海大学上海研究院

农民工教育与职业的匹配状况对提高劳动力资源利用、增加劳动供给质量具有重要意义。本文使用中国流动人口动态监测调查2011~2016年微观数据,基于城市规模视角分析了农民工教育与职业的匹配状况对工资效应的差别。研究发现:人口规模越... 详细信息

农民工教育与职业的匹配状况对提高劳动力资源利用、增加劳动供给质量具有重要意义。本文使用中国流动人口动态监测调查2011~2016年微观数据,基于城市规模视角分析了农民工教育与职业的匹配状况对工资效应的差别。研究发现:人口规模越大的城市,农民工教育与职业的错配比例越高;中小城市农民工教育过度对工资的影响呈现工资嘉赏效应,大城市农民工教育过度对工资的影响以工资惩罚为主;而教育不足对农民工工资则普遍存在负向影响。农民工教育与职业不匹配对工资影响的理论机制表明,中小城市支持人力资本理论模型,而大城市和特大城市则支持分配理论模型。这意味着,农民工在中小城市表现出学历越高人力资本回报越高的特点;而在大城市,教育与职业适配则更为重要。因此,改善城市层面的教育-职业的适配性,让农民工在城市劳动力市场上自由流动和工作转换,进一步增强城市间劳动力资源的流动是相关政策调节的重点。

关键词：农民工教育职业适配城市规模 V-V模型 D-H模型

Infrared imaging of magnetic octupole domains in non-collinear antiferromagnets

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National Science Review 2024年第06期11卷 197-205页

作者： Peng Wang Wei Xia Jinhui Shen yulong Chen wenzhi Peng Jiachen Zhang Haolin Pan Xuhao yu Zheng Liu Yang Gao Qian Niu Zhian Xu Hongtao Yang Yanfeng Guo Dazhi Hou International Center for Quantum Design of Functional Materials(ICQD) School of Emerging TechnologyUniversity of Science and Technology of China College of Mathematics and Physics Qingdao University of Science and Technology School of Physical Science and Technology Shanghai Tech University Shanghai Tech Laboratory for Topological Physics Shanghai Tech University Department of Physics University of Science and Technology of China CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics University of Science and Technology of China Xi'an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences

Magnetic structure plays a pivotal role in the functionality of antiferromagnets（AFMs）, which not only can be employed to encode digital data but also yields novel phenomena. Despite its growing significance,visualizing the antiferromagnetic domain structure remains a challenge, particularly for non-collinear AFMs. Currently, the observation of magnetic domains in non-collinear antiferromagnetic materials is feasible only in Mn3Sn, underscoring the limitations of existing techniques that necessitate distinct methods for in-plane and out-of-plane magnetic domain imaging. In this study, we present a versatile method for imaging the antiferromagnetic domain structure in a series of non-collinear antiferromagnetic materials by utilizing the anomalous Ettingshausen effect（AEE）, which resolves both the magnetic octupole moments parallel and perpendicular to the sample surface. Temperature modulation due to AEE originating from different magnetic domains is measured by lock-in thermography, revealing distinct behaviors of octupole domains in different antiferromagnets. This work delivers an efficient technique for the visualization of magnetic domains in non-collinear AFMs, which enables comprehensive study of the magnetization process at the microscopic level and paves the way for potential advancements in applications.

关键词： non-collinear antiferromagnet domain structure infrared imaging anomalous Ettingshausen effect