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Physiological,transcriptome and gene functional analysis provide novel sights into cadmium accumulation and tolerance mechanisms in kenaf

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Journal of Environmental Sciences 2024年第3期137卷 500-514页

作者： shan Cao Meng Wang Jiao Pan Dengjie Luo Samavia Mubeen Caijin Wang Jiao yue Xia Wu Qijing Wu Hui Zhang Canni Chen Muzammal Rehman Sichen Xie Ru Li Peng Chen guangxi Key Laboratory of Agro-environment and Agric-products safety Key Laboratory of Plant Genetics and BreedingCollege of AgricultureGuangxi UniversityNanning 530004China State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of Life Science and TechnologyGuangxi UniversityNanning 530004China

Kenaf is considered to have great potential for remediation of heavy metals in ***,studies on molecular mechanisms of root Cd accumulation and tolerance are still *** this study,two differently tolerant kenaf cultivars were selected as materials and the physiological and transcriptomic effects were evaluated under Cd *** study showed that 200μmol/L CdCl_(2) treatment triggered the reactive oxygen species(ROS)explosion and membrane lipid *** with the Cd-sensitive cultivar‘Z',the Cd-tolerant cultivar‘F'was able to resist oxidative stress in cells by producing higher antioxidant enzyme activities and increasing the contents of ascorbic acid(AsA)and glutathione(GSH).The root cell wall of‘F'exhibited higher polysaccharide contents under Cd treatment,providing more Cd-binding *** were 3,439 differentially expressed genes(DEGs)that were co-regulated by Cd treatment in two *** biosynthesis and plant hormone signal transduction pathways were significantly enriched by functional annotation *** associated with pectin,cellulose,and hemi-cellulose metabolism were involved in Cd chelation of root cell wall;V-ATPases,ABCC3 and Narmp3 could participated in vacuolar compartmentalization of Cd;PDR1 was responsible for Cd effux;the organic acid transporters contributed to the absorption of Cd in *** genes might have played key roles in kenaf Cd tolerance and Cd ***,HcZIP2 was identified to be involved in Cd uptake and transport in *** findings provide a deeper understanding of the molecular pathways underlying Cd accumulation and detoxification mechanisms in kenaf.

关键词： Kenaf Cd stress Physiological Transcriptome HcZIP2

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轮毂轴承滚道成形缺陷超声相控阵检测技术

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塑性工程学报 2022年第11期29卷 61-66页

作者：李一轩汪小凯董新宇关山月武汉理工大学现代汽车零部件技术湖北省重点实验室湖北武汉430070 武汉理工大学汽车零部件技术湖北省协同创新中心湖北武汉430070 武汉理工大学材料绿色精密成形技术与装备湖北省工程中心湖北武汉430070 湖北省计量测试研究院湖北武汉430070

为解决第3代汽车轮毂轴承滚道近表面缺陷检测问题,围绕滚道曲面半径小和空间狭窄、超声换能器耦合困难、超声声束畸变与散射严重等问题,开展了检测工艺设计、曲面声场解析及人工缺陷试块检测实验验证工作。针对轮毂轴承滚道复杂曲面结构... 详细信息

为解决第3代汽车轮毂轴承滚道近表面缺陷检测问题,围绕滚道曲面半径小和空间狭窄、超声换能器耦合困难、超声声束畸变与散射严重等问题,开展了检测工艺设计、曲面声场解析及人工缺陷试块检测实验验证工作。针对轮毂轴承滚道复杂曲面结构,设计了水浸超声相控阵检测工艺。通过K-wave软件模拟了换能器声场分布规律并确定了探头参数。开展了轮毂轴承近表面缺陷超声相控阵检测实验,结果表明,该方法可实现近表面1 mm、Ф1 mm缺陷的检出,采用超声相控阵线性聚焦扫描成像算法可以提高曲面结构下的声波入射能量,减小轮毂轴承近表面盲区,提高近表面缺陷分辨率。

关键词：汽车轮毂轴承超声相控阵复杂曲面构件

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Burden of gastrointestinal cancers among working-age population over past thirty years in China

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World Journal of Gastrointestinal Oncology 2024年第9期16卷 3955-3979页

作者： Yu Dong Zhuan-Zhuan Fan Wen-Ting Li Jian Kang Yan Zhang yue guan Hui-Qing Xu Jie Yuan Fei Xu Department of Gastroenterology Nanjing First HospitalNanjing Medical UniversityNanjing 210006Jiangsu ProvinceChina Department of Primary Healthcare Management Nanjing Municipal Center for Disease Control and PreventionNanjing 210003Jiangsu ProvinceChina Department of Emergency The First Affiliated Hospital with Nanjing Medical UniversityNanjing 210029Jiangsu ProvinceChina Department of Epidemiology Nanjing Medical University School of Public HealthNanjing 211116Jiangsu ProvinceChina

BACKGROUND Although gastrointestinal(GI)cancers have been becoming a great public health concern in China,there is currently a lack of comprehensive literature on the overall burden and changing trends of GI cancers in the working-age *** To assess the burden of GI cancers and to examine the overall,age-and genderspecific trends among the working-age population in China from 1990 to *** Data were extracted from the Global Burden of Disease Study *** burden of GI cancers was indicated by incidence,mortality,disability-adjusted life-years(DALYs),age-standardized incidence rate(ASIR),age-standardized mortality rate,and age-standardized DALYs *** in the burden of GI cancers from 1990 to 2019 were examined using annual percent change and average annual percent change with Joinpoint regression *** For overall GI cancers,a declining trend was observed in the ASIR,age-standardized mortality rate,and agestandardized DALYs rate,with reductions of 0.74%,2.23%,and 2.22%,respectively,from 1999 to 2019 in the Chinese working-age ***,an increasing trend was observed in the ASIR for overall GI cancers from *** number of either incident cases,mortality cases,and DALYs was higher for colon/rectum cancer and liver cancer in younger participants but lower for esophageal,gallbladder,biliary tract,pancreatic,and stomach cancer among older ***,sex disparity in the GI cancers burden was also examined over 30 *** The total burden of GI cancers remained heavy among the working-age population in China,although declining trends were observed from 1999 to *** in the GI cancers burden existed between sexes,age groups,and cancer ***-based precision prevention strategies are needed to tackle GI cancers among working-age individuals,considering the age,sex,and cancer type disparities in China.

关键词： Gastrointestinal cancer Working-age population Disease burden Disability-adjusted life-years Chinese

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Radiative cooling for long-term building energy efficiency:An experimental comparison of seven coatings

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National Science Open 2024年第3期3卷 50-69页

作者： yue He Biao Lu Jinzhong Fang yue Lei shan Gao Chi Feng School of Architecture and Urban Planning Chongqing University Key Laboratory of New Technology for Construction of Cities in Mountain Area Ministry of EducationChongqing University

Radiative cooling coatings are widely used owing to their excellent cooling performance and energy ***,there is a lack of comprehensive research on their weather resistance,long-term performance and effects on building *** fill this research gap,seven coatings were selected for experimental observation and simulation *** results revealed noticeable differences among different coatings regarding anti-aging properties,cooling performance and building load *** coatings exhibited yellowing,cracking and peeling after weathering tests,accompanied by a decline in their radiative ***-term tests showed that the cooling performance of all coatings gradually decreased due to natural aging,and the rate of decline was proportional to the weathering of the *** load simulations revealed the potential effect of coating selection on cooling and heating loads,thereby suggesting that different coatings should be selected based on actual usage scenarios in different climatic zones.

关键词： radiative cooling coating weather resistance long-term cooling performance building load

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High-speed GaN-based laser diode with modulation bandwidth exceeding 5 GHz for 20 Gbps visible light communication

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Photonics Research 2024年第6期12卷 1186-1193页

作者： JUNFEI WANG JUNHUI HU CHAOWEN guan YUQI HOU ZENGYI XU LEIHAO SUN yue WANG YUNING ZHOU BOON S.OOI JIANYANG SHI ZIWEI LI JUNWEN ZHANG NAN CHI SHAOHUA YU CHAO SHEN School of Information Science and Technology Fudan UniversityShanghai 200433China Peng Cheng Laboratory Shenzhen 518000China ZGC Institute of Ubiquitous-X Innovation and Applications Beijing 100876China Photonics Laboratory King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia

Visible light communication(VLC)based on laser diodes demonstrates great potential for high data rate maritime,terrestrial,and aerial wireless data ***,we design and fabricate high-speed blue laser diodes(LDs)grown on c-plane gallium nitride(GaN)*** was achieved through active region design and miniaturization toward a narrow ridge waveguide,short cavity length,and single longitudinal mode Fabry–Perot laser *** fabricated mini-LD has a low threshold current of 31 mA and slope efficiency of 1.02 W/A.A record modulation bandwidth of 5.9 GHz(−3dB)was measured from the *** the developed mini-LD as a transmitter,the VLC link exhibits a high data transmission rate of 20.06 Gbps adopting the bit and power loading discrete multitone(DMT)modulation *** corresponding bit error rate is 0.003,satisfying the forward error correction *** demonstrated GaN-based mini-LD has significantly enhanced data transmission rates,paving the path for energy-efficient VLC systems and integrated photonics in the visible regime.

关键词： communication diode waveguide

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Improvement of Ga_(2)O_(3)vertical Schottky barrier diode by constructing NiO/Ga_(2)O_(3)heterojunction

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Journal of Semiconductors 2024年第4期45卷 63-68页

作者： Xueqiang Ji Jinjin Wang Song Qi Yijie Liang Shengrun Hu Haochen Zheng Sai Zhang Jianying yue Xiaohui Qi shan Li Zeng Liu Lei Shu Weihua Tang Peigang Li School of Integrated Circuits&State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and TelecommunicationsBeijing 100876China College of Integrated Circuit Science and Engineering Nanjing University of Posts and TelecommunicationsNanjing 210023China Beijing Microelectronics Technology Institute Beijing 100076China

The high critical electric field strength of Ga_(2)O_(3)enables higher operating voltages and reduced switching losses in power electronic *** Schottky metals and epitaxial films are essential for further enhancing device *** this work,the fabrication of vertical Ga_(2)O_(3)barrier diodes with three different barrier metals was carried out on an n--Ga_(2)O_(3)homogeneous epitaxial film deposited on an n+-β-Ga_(2)O_(3)substrate by metal-organic chemical vapor deposition,excluding the use of edge *** ideal factor,barrier height,specific on-resistance,and breakdown voltage characteristics of all devices were investigated at room *** addition,the vertical Ga_(2)O_(3)barrier diodes achieve a higher breakdown volt-age and exhibit a reverse leakage as low as 4.82×10^(-8)A/cm^(2)by constructing a NiO/Ga_(2)O_(3)***,Ga_(2)O_(3)power detailed investigations into Schottky barrier metal and NiO/Ga_(2)O_(3)heterojunction of Ga_(2)O_(3)homogeneous epitaxial films are of great research potential in high-efficiency,high-power,and high-reliability applications.

关键词： Ga_(2)O_(3) Schottky barrier diode NiO/Ga_(2)O_(3)heterojunction

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带有创新诊断技术的压力变送器及其应用

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中国冶金 2008年第1期18卷 47-49页

作者：关山月刘兵北京佰能电气技术有限公司工业系统部北京100096 艾默生过程控制有限公司北京办事处北京100020

研究了带有诊断技术的压力变送器的测量原理及其向用户提供诊断信息的途径;论述了罗斯蒙特压力变送器运行流程;并举例说明了带有创新诊断技术的压力变送器的应用效果。

关键词：诊断技术压力变送器过程监控罗斯蒙特

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The prognostic value of collateral circulation in coronary chronic total occlusion underwent percutaneous coronary intervention

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Journal of Geriatric Cardiology 2024年第2期21卷 232-241页

作者： Xiao-Ying HU Wei-Xian YANG Chang-Dong guan Li-Hua XIE Ke-Fei DOU Yong-Jian WU Jin-Qing YUAN Jie QIAN yue-Jin YANG Shu-Bin QIAO Lei SONG Department of Cardiology Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina National Clinical Research Center for Cardiovascular Diseases BeijingChina Catheterization Laboratories Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina

BACKGROUND The prognostic value of coronary collateral circulation(CC)in patients undergoing chronic total occlusion(CTO)percutaneous coronary intervention(PCI)is *** purpose of the study was to assess the prognostic value of current two CC grading systems and their association with long-term outcomes in patients with CTO underwent *** We consecutively enrolled patients with single-vessel CTO underwent PCI between January 2010 and *** patients were categorized into well-developed or poor-developed collaterals group according to angiographic Werner's CC(grade 2 *** 0–1)or Rentrop(grade 3 *** 0–2)grading *** primary endpoint was 5-year cardiac *** Of 2452 enrolled patients,the overall technical success rate was 74.1%.Well-developed collaterals were present in686 patients(28.0%)defined by Werner's CC grade 2,and in 1145 patients(46.7%)by Rentrop grade *** to Werner's CC grading system,patients with well-developed collaterals had a lower rate of 5-year cardiac death compared with those with poordeveloped collaterals(1.6%vs.3.3%,P=0.02),those with suboptimal recanalization was associated with higher rate of 5-year cardiac death compared with optimal recanalization(4.7%vs.0.8%,P=0.01)and failure patients(4.7%vs.1.6%,P=0.12).However,the similar effect was not shown in Rentrop grading *** In patients with the single-vessel CTO underwent PCI,well-developed collaterals by Werner's CC definition were associated with lower rate of 5-year cardiac ***'s CC grading system had a greater prognostic value than Rentrop grading system in patients with CTO underwent PCI.

关键词： coronary collateral occlusion

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Simulations of electron zebra stripes in the inner radiation belt using a composite empirical electric field model

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Science China Earth Sciences 2024年

作者： Ziyang WANG Ying LIU Qiugang ZONG Hong ZOU Yuguang YE Xuzhi ZHOU Chao yue shan WANG Institute of Space Physics and Applied Technology Peking University State Key Laboratory of Lunar and Planetary Science Macau University of Science and Technology

The phenomenon termed “zebra stripes” manifests as regular patterns in the energy-space(L shell) spectrum of energetic electrons(ranging from tens to hundreds keV) within the inner radiation belt. These structures exhibit drift-periodic behavior and commonly arise from large-scale electric field perturbations near the substorm onsets. In this study, we introduce a composite electric field model and replicate the formation, structure, and evolution of zebra stripes using a bounce-averaged test particle code under this electric field model. High-resolution measurements of energetic electrons obtained from the Van Allen Probes and the recently launched Macao Science Satellites-1 are used as initial conditions and served to validate our test particle simulations. Comparative analyses between observed data and simulations demonstrate our test particle method's efficacy in capturing zebra stripes' general behavior. Moreover, the composite model proves capable of reproducing realistic variations in the electric field within the inner radiation belt to a certain extent. Nevertheless, subtle differences emerge in the flux strength and the positions of stripes. These disparities primarily stem from limitations inherent in the electric field model and the initial conditions of the simulation. Acknowledging that the model represents an average case, it is conceivable that real-world scenarios may deviate from the average, thereby introducing variations in the observed phenomena.

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温度对广重粉蛉生长发育和繁殖的影响

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应用昆虫学报 2022年第1期59卷 142-147页

作者：梁建锋韩阅叶张龙杰关月姗王兴民广东省生物农药创制与应用重点实验室华南农业大学植物保护学院昆虫学系广州510642 中华人民共和国淮安海关淮安223001 湖南省怀化市农业综合服务中心怀化418000 岭南现代农业科学与技术广东省实验室茂名分中心茂名525099

【目的】明确温度对广重粉蛉Semidalis aleyrodiformis生长发育和繁殖的影响,为天敌昆虫广重粉蛉在生物防治领域的开发和利用提供理论依据。【方法】在不同恒定温度条件下,测定广重粉蛉的发育历期和存活率,并构建实验种群生命表。【结... 详细信息

【目的】明确温度对广重粉蛉Semidalis aleyrodiformis生长发育和繁殖的影响,为天敌昆虫广重粉蛉在生物防治领域的开发和利用提供理论依据。【方法】在不同恒定温度条件下,测定广重粉蛉的发育历期和存活率,并构建实验种群生命表。【结果】随着温度的上升,广重粉蛉幼虫各阶段的发育历期逐步缩短。在26℃,成虫前期存活率最高,达85.00%,高温和低温均降低幼虫存活率;广重粉蛉成虫寿命和产卵量随温度的上升而下降,在23℃时产卵量最高(445.00粒),且与26℃无显著差异。在26℃下,广重粉蛉实验种群的净增值力R0、内禀增长率rm和周限增长率λ均达到最大值。【结论】广重粉蛉对温度的适应范围在23-29℃,最佳温度为26℃,在我国南方有很好的生物防治应用前景。

关键词：广重粉蛉烟粉虱温度发育历期生命表生物防治

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