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Increased contribution of microbial necromass to soil organic carbon in solar farms on the Tibetan Plateau

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Journal of Mountain Science 2025年第1期22卷 184-197页

作者： ZHANG Xiyu zhou Jun CHEN Yang FAN jianrong Institute of Mountain Hazards and Environment Chinese Academy of SciencesChengdu 610299China

Solar farms have been rapidly expanding on the Qinghai-Tibetan ***,the effects of photovoltaic arrays on the contribution of microbial necromass carbon(MNC)to soil organic carbon(SOC),along with the underlying mechanisms,remain *** address this,we collected soil samples from the top 20 cm in under-panel,inter-panel and control plots at five solar farms constructed between 2012 and 2014 in the dry Yarlung Tsangpo and Lhasa River valleys on the Qinghai-Tibetan *** determined SOC,fungal and bacterial necromass and relevant soil *** found that the concentration of MNC in the under-panel plots(3.93±0.79 mg g-1)was significantly higher compared to the control plots(2.28±0.79 mg g-1)across all five solar *** proportion of MNC to SOC in the under-panel plots(34.7±2.4%)was also significantly higher than that in the control plots(27.5±1.4%).Specifically,the contribution of fungal necromass to SOC in the under-panel plots(26.4±2.2%)was significantly larger than that in the control plots(19.7±1.6%),while the increase in the bacterial necromass proportion was *** least squares structural equation modeling(PLS-SEM)indicated a significant and positive effect of increased soil moisture in the under-panel plots on the proportion of fungal necromass to *** results highlight that beyond their economic benefits,solar farms in the arid regions on the Qinghai-Tibetan Plateau can enhance soil C sequestration by improving soil moisture and promoting microbial necromass accumulation.

关键词： Photovoltaic power station Fungal necromass Bacterial necromass Microbial residues Yarlung Tsangpo Arid river valley

Simulation study on the boron-coated GEM neutron beam monitor

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Science China(Physics,Mechanics & Astronomy) 2013年第10期56卷 1897-1902页

作者： WANG YanFeng SUN ZhiJia zhou jianrong YANG GuiAn XU Hong WANG Tuo CHEN YuanBo State Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of Sciences College of Science China University of Petroleum

A Monte Carlo method of the 3D GEM simulation is *** physical process of the neutron detection is described with the Geant4 code and the Garfield *** results of the optimized electric-fields,the emitted ions spectrum,the electrons transverse diffusion and the signal width are ***,the preliminary result with a CF-252 neutron source is *** are useful in designing detector structures and to provide an optimized option for the development of the boron-coated GEM neutron beam monitor.

关键词： GEM neutron beam monitor Garfield code Geant4 code

Cerebral furin deficiency causes hydrocephalus in mice

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Genes & Diseases 2024年第3期11卷 438-451页

作者： Shiqi Xie Xiaoyong Xie Jing Tang Biao Luo Jian Chen Qixin Wen jianrong zhou Guojun Chen Nursing College Chongqing Medical UniversityChongqing 400016China Department of Neurology The First Affiliated Hospital of Chongqing Medical UniversityChongqing Key Laboratory of Major Neurological and Mental DisordersChongqing Key Laboratory of NeurologyChongqing 400016China

Furin is a pro-protein convertase that moves between the trans-Golgi network and cell surface in the secretory *** have previously reported that cerebral overexpres-sion of furin promotes cognitive functions in ***,by generating the brain-specific furin conditional knockout(ckO)mice,we investigated the role of furin in brain *** found that furin deficiency caused early death and growth *** resonance im-aging showed severe *** the brain of furin cko mice,impaired ciliogenesis and the derangement of microtubule structures appeared along with the down-regulated expres-sion of RAB28,a ciliary vesicle *** line with the widespread neuronal loss,ependymal cell layers were *** proteomics analysis revealed that cell adhesion molecules including astrocyte-enriched ITGB8 and BCAR1 were altered in furin cKO mice;and astrocyte overgrowth was accompanied by the reduced expression of sox9,indicating a disrupted differ-entiation into ependymal ***,whereas alteration of RAB28 expression correlated with the role of vesicle trafficking in ciliogenesis,dysfunctional astrocytes might be involved in ependymal damage contributing to hydrocephalus in furin ckO *** structural and mo-lecular alterations provided a clue for further studying the potential mechanisms of furin.

关键词： Astrocyte Ciliogenesis Conditionalknockout Ependymal Furin Hydrocephalus Proteomics

The Synthesis of Single Crystals of Manganese Aluminophosphate Molecular Sieve and Studies on Their Properties

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Chemical Research in Chinese Universities 1989年第1期5卷 1-7页

作者： Han Shuyun and zhou jianrong(Department of Chemistry, Jilin University, Changchun)

Single crystals of the molecular sieve, MnAPO-5, were synthesized by hydrothermal synthesis in the presence of fluoride ions. It was shown by X-ray diffraction, infrared spectroscopy, electron paramagnetic resonance spectroscopy, electron probe analysis and chemical composition analysis that the structure of MnAPO-5 is of the A1PO-5 type, and manganese(Ⅱ) is incorporated into the framework. Adsorption properties, thermal stability and surface acidity were also investigated.

关键词： Single crystal Synthesis Molecular sieve

A stopping layer concept to improve the spatial resolution of gas-electron-multiplier neutron detector

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Chinese Physics B 2022年第5期31卷 225-230页

作者： Jianjin zhou jianrong zhou Xiaojuan zhou Lin Zhu Jianqing Yang Guian Yang Yi Zhang Baowei Ding Bitao Hu Zhijia Sun Limin Duan Yuanbo Chen School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China Spallation Neutron Source Science Center Dongguan 523803China State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China

In recent years,gas electron multiplier(GEM)neutron detectors have been developing towards high spatial resolution and high dynamic counting *** propose a novel concept of an Al stopping layer to enable the detector to achieve sub-millimeter(sub-mm)spatial *** neutron conversion layer is coated with the Al stopping layer to limit the emission angle of ions into the drift *** short track projection of ions is obtained on the signal readout board,and the detector would get good spatial *** spatial resolutions of the GEM neutron detector with the Al stopping layer are simulated and optimized based on Geant4 Garfield *** spatial resolution of the detector is 0.76 mm and the thermal neutron detection efficiency is about 0.01%when the Al stopping layer is 3.0μm thick,the drift region is 2 mm thick,the strip pitch is 600μm,and the digital readout is ***,the GEM neutron detector with a simple detector structure and a fast readout mode is developed to obtain a high spatial resolution and high dynamic counting *** could be used for the direct measurement of a high-flux neutron beam,such as Bragg transmission imaging,very small-angle scattering neutron detection and neutron beam diagnostic.

关键词： high spatial resolution Al stopping layer GEM neutron detector spallation neutron source

Study on the imaging ability of the 2D neutron detector based on MWPC

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Science China(Physics,Mechanics & Astronomy) 2013年第10期56卷 1882-1886页

作者： TIAN LiChao CHEN YuanBo TANG Bin zhou jianrong QI HuiRong LIU RongGuang ZHANG Jian YANG GuiAn XU Hong CHEN DongFeng SUN ZhiJia State Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of Sciences University of Chinese Academy of Sciences Key Laboratory of Neutron Detection and Electronics China Institute of Atomic Energy

A 2D neutron detector based on 3He convertor and MWPC with an active area of 200 mmx200 mm has been successfully designed and fabricated. The detector has been tested with Am/Be neutron source and with collimated neutron beam with the wavelength of λ=1.37A. The best spatial resolution of 1.18 mm （FWHM） and good linearity were obtained. This is in good agreement with theoretical calculations.

关键词： thermal neutron detector imaging detector two dimensional position resolution

Regioselective radical alkylation of heterocycles and carbocycles using palladium catalysts

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Regioselective radical alkylation of heterocycles and carboc...

Genome-wide identification and expression profiling reveal the diverse role of Methyl-CpG-binding domain proteins in tea plant Camellia sinensis

中国化学会第九届全国有机化学学术会议

作者： zhou jianrong（Steve） Nanyang Technological University

＜正＞In 1970s Osborn reported that palladium（0）complexes of phosphines underwent single electron transfer processes with alkyl halides and generated alkyl *** harnessed this fundamental,yet under-utlilized reactivi...

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Beverage Plant Research 2021年第1期1卷 76-87页

作者： Yao Chen Yuteng Li Hengze Ren jianrong zhou Lu Wang Yajun Yang Xinyuan Hao Xinchao Wang Tea Research Institute Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Biology and Resources UtilisationMinistry of Agriculture and Rural AffairsHangzhouZhejiang 310008China College of Horticulture Fujian Agriculture and Forestry UniversityFuzhouFujian 350002China

Methyl-CpG-binding domain(MBD)proteins are important DNA methylation readers that recognise methylated CpG sites and recruit histone deacetylase(HDAC)complexes and chromatin remodelling factors,leading to chromatin compaction,gene transcription,and genome ***,MBD genes have only been identified in a few plant species and their structure and function in tea plants(Camellia sinensis)are *** this study,16 *** MBD genes(CsMBD)were identified on a genome-wide level and classified into eight *** CsMBD genes were mapped on nine chromosomes in tea plants,and nine pairs of CsMBD genes *** on conserved domain analysis,all of the identified CsMBD proteins contained at least one MBD *** analyses showed that CsMBD genes were expressed in tissue-and organ-specific *** investigated the expression patterns of CsMBD genes in response to abiotic and biotic stresses and during different plant growth and development *** pthytohormone and stress-related cis-acting was evaluated in their promoter region,such as GGTCA,TGACG,ABRE and *** CsMBD genes were associated with environmental stresses and developmental stages,with little ***,our findings reveal the diverse roles of CsMBD genes under different stress and developmental conditions,highlighting candidate genes for further functional studies on tea plants.

关键词： sinensis CpG diverse

First neutron Bragg-edge imaging experimental results at CSNS

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Chinese Physics B 2021年第9期30卷 45-48页

作者： Jie Chen Zhijian Tan Weiqiang Liu Sihao Deng Shengxiang Wang Liyi Wang Haibiao Zheng Huaile Lu Feiran Shen Jiazheng Hao Xiaojuan zhou jianrong zhou Zhijia Sun Lunhua He Tianjiao Liang Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center(SNSSC) Dongguan 523803China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

The neutron Bragg-edge imaging is expected to be a new non-destructive energy-resolved neutron imaging technique for quantitatively two-dimensional or three-dimensional visualizing crystallographic information in a bulk material,which could be benefited from pulsed neutron *** we build a Bragg-edge imaging system on the General Purpose Powder Diffractometer at the China Spallation Neutron *** residual strain mapping of a bent Q235 ferrite steel sample has been achieved with a spectral resolution of 0.15%by the time-of-flight neutron Bragg-edge imaging on this *** results show its great potential applications in materials science and engineering.

关键词： neutron Bragg-edge imaging China Spallation Neutron Source