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| 1 | Terrestrial carbon sinks in China and around the world and their contribution to carbon neutrality显示文摘Enhancing the terrestrial ecosystem carbon sink(referred to as terrestrial C sink) is an important way to slow down the continuous increase in atmospheric carbon dioxide(CO_(2)) concentration and to achieve carbon neutrality target.To better understand the characteristics of terrestrial C sinks and their contribution to carbon neutrality,this review summarizes major progress in terrestrial C budget researches during the past decades,clarifies spatial patterns and drivers of terrestrial C sources and sinks in China and around the world,and examines the role of terrestrial C sinks in achieving carbon neutrality target.According to recent studies,the global terrestrial C sink has been increasing from a source of (-0.2±0.9) Pg C yr^(-1)(1 Pg=1015g)in the 1960s to a sink of (1.9±1.1) Pg C yr^(-1) in the 2010s.By synthesizing the published data,we estimate terrestrial C sink of 0.20–0.25 Pg C yr^(-1) in China during the past decades,and predict it to be 0.15–0.52 Pg C yr^(-1) by 2060.The terrestrial C sinks are mainly located in the mid-and high latitudes of the Northern Hemisphere,while tropical regions act as a weak C sink or source.The C balance differs much among ecosystem types:forest is the major C sink;shrubland,wetland and farmland soil act as C sinks;and whether the grassland functions as C sink or source remains unclear.Desert might be a C sink,but the magnitude and the associated mechanisms are still controversial.Elevated atmospheric CO_(2) concentration,nitrogen deposition,climate change,and land cover change are the main drivers of terrestrial C sinks,while other factors such as fires and aerosols would also affect ecosystem C balance.The driving factors of terrestrial C sink differ among regions.Elevated CO_(2) concentration and climate change are major drivers of the C sinks in North America and Europe,while afforestation and ecological restoration are additionally important forcing factors of terrestrial C sinks in China.For future studies,we recommend the necessity for intensive and long-term ecosystem C monitoring over broad geographic scale to improve terrestrial biosphere models for accurately evaluating terrestrial C budget and its dynamics under various climate change and policy scenarios. | Yuanhe Yang Yue Shi Wenjuan Sun Jinfeng Chang Jianxiao Zhu Leiyi Chen Xin Wang Yanpei Guo Hongtu Zhang Lingfei Yu Shuqing Zhao Kang Xu Jiangling Zhu Haihua Shen Yuanyuan Wang Yunfeng Peng Xia Zhao Xiangping Wang Huifeng Hu Shiping Chen Mei Huang Xuefa Wen Shaopeng Wang Biao Zhu Shuli Niu Zhiyao Tang Lingli Liu Jingyun Fang | 2022 | Science China(Life Sciences)2022，65，5： | 32 |
| 2 | Responses of soil respiration to simulated precipitation pulses in semiarid steppe under different grazing regimes显示文摘Aims Precipitation pulses and different land use practices(such as grazing)play important roles in regulating soil respiration and carbon balance of semiarid steppe ecosystems in Inner Mongolia.However,the interactive effects of grazing and rain event magnitude on soil respiration of steppe ecosystems are still unknown.We conducted a manipulative experiment with simulated precipitation pulses in Inner Mongolia steppe to study the possible responses of soil respiration to different precipitation pulse sizes and to examine how grazing may affect the responses of soil respiration to precipitation pulses.Methods Six water treatments with different precipitation pulse sizes(0,5,10,25,50 and 100 mm)were conducted in the ungrazed and grazed sites,respectively.Variation patterns of soil respiration of each treatment were determined continuously after the water addition treatments.Important Findings Rapid and substantial increases in soil respiration occurred 1 day after the water treatments in both sites,and the magnitude and duration of the increase in soil respiration depended on pulse size.Significantly positive relationships between the soil respiration and soil moisture in both sites suggested that soil moisture was the most important factor responsible for soil respiration rate during rain pulse events.The ungrazed site maintained significantly higher soil moisture for a longer time,which was the reason that the soil respiration in the ungrazed site was maintained relatively higher rate and longer period than that in the grazed site after a rain event.The significant exponential relationship between soil temperature and soil respiration was found only in the plots with the high water addition treatments(50 and 100 mm).Lower capacity of soil water holding and lower temperature sensitivity of soil respiration in the grazed site indicated that degraded steppe due to grazing might release less CO_(2) to the atmosphere through soil respiration under future precipitation and temperature scenarios. | Shiping Chen Guanghui Lin Jianhui Huang Mao He | 2008 | Journal of Plant Ecology2008，1，4： | 24 |
| 3 | The discovery of Palaeoproterozoic volcanic rocks in the Bulunkuoler Group from the Tianshuihai Massif in Xinjiang of Northwest China and its geological significance显示文摘In the Dabudaer region of the Tianshuihai Massif (Xinjiang, Northwest China), metavolcanic rocks within the mainly meta-sedimentary Bulunkuoler Group are basalt, basaltic andesite, and rhyolite. In situ zircon U-Pb LA-ICP-MS dating on rhyolite magmatic zircons yielded an age of 2481±14 Ma, interpreted as the eruption age of the Bulunkuoler Group volcanic rocks. The basalt and basaltic andesite are low-Al tholeiite series and the rhyolite is low-Al calc-alkaline series. All of rocks are charac-terized by enrichment of LREE and LILE (Rb, Th and Ba), depletion of P, Nb, Ta and Ti, and absence of Eu anomalies. The εNd(t) of basalts ranges from 3.14 to 4.88 indicating a depleted mantle source. The trace element signatures show that these magmas experienced intense crustal contamination during their ascent. Direct evidence for crustal contamination is the xenocrystic zircons in the ryholite, with ages back to ca. 3300 Ma. The primitive-mantle normalized and Zr/Y-Zr diagrams for the basic volcanic rocks show that they formed in an intra-continental tectonic setting. Combined with the previous studies and compared with North China Craton Neoarchean basic volcanic rocks, it is supposed that the Bulunkuoler Group volcanic rocks reflect the Palaeoproterozoic mantle magma underplating and interaction with felsic crust. | JI WenHua LI RongShe CHEN ShouJian HE ShiPing ZHAO ZhenMing BIAN XiaoWei ZHU HaiPing CUI JiGang REN JuanGang | 2011 | Science China Earth Sciences2011，54，1： | 22 |
| 4 | Whole-genome sequencing of 508 patients identifies key molecular features associated with poor prognosis in esophageal squamous cell carcinoma显示文摘Esophageal squamous cell carcinoma(ESCC)is a poor-prognosis cancer type with limited understanding of its molecular etiology.Using 508 ESCC genomes,we identified five novel significantly mutated genes and uncovered mutational signature clusters associated with metastasis and patients’outcomes.Several functional assays implicated that NFE2L2 may act as a tumor suppressor in ESCC and that mutations in NFE2L2 probably impaired its tumor-suppressive function,or even conferred oncogenic activities.Additionally,we found that the NFE2L2 mutations were significantly associated with worse prognosis of ESCC.We also identified potential noncoding driver mutations including hotspot mutations in the promoter region of SLC35E2 that were correlated with worse survival.Approximately 5.9%and 15.2%of patients had high tumor mutation burden or actionable mutations,respectively,and may benefit from immunotherapy or targeted therapies.We found clinically relevant coding and noncoding genomic alterations and revealed three major subtypes that robustly predicted patients’outcomes.Collectively,we report the largest dataset of genomic profiling of ESCC useful for developing ESCC-specific biomarkers for diagnosis and treatment. | Yongping Cui Hongyan Chen Ruibin Xi Heyang Cui Yahui Zhao Enwei Xu Ting Yan Xiaomei Lu Furong Huang Pengzhou Kong Yang Li Xiaolin Zhu Jiawei Wang Wenjie Zhu Jie Wang Yanchun Ma Yong Zhou Shiping Guo Ling Zhang Yiqian Liu Bin Wang Yanfeng Xi Ruifang Sun Xiao Yu Yuanfang Zhai Fang Wang Jian Yang Bin Yang Caixia Cheng Jing Liu Bin Song Hongyi Li Yi Wang Yingchun Zhang Xiaolong Cheng Qimin Zhan Yanhong Li Zhihua Liu-Show | 2020 | Cell Research2020，30，10： | 19 |
| 5 | Plant phenological responses to climate change on the Tibetan Plateau: research status and challenges显示文摘Phenology studies the cycle of events in nature that are initiated and driven by an annually recurring environment. Plant phenology is expected to be one of the most sensitive and easily observable natural indicators of climate change. On the Tibetan Plateau(TP), an accelerated warming since the mid-1980 s has resulted in signiicant environmental changes. hese new conditions are accompanied by phenological changes that are characterized by considerable spatiotemporal heterogeneity. Satellite remote sensing observed widespread advance in the start of the plant growing season across the plateau during the 1980 s and 1990 s but substantial delay over 2000–2011 in the southwest although it continued to advance in the northeast regions of the TP. Both observational studies and controlled experiments have revealed, to some extent, the positive role of higher preseason temperature and even more precipitation in advancing the leaf onset and irst lowering date of the TP. However, a number of rarely visited research issues that are essential for understanding the role of phenology in ecosystem responses and feedback processes to climate change remain to be solved. Our review recommends that addressing the following questions should be a high priority. How did other phenological events change, such as lowering and fruiting phenology? What are the inluences from environmental changes other than temperature and precipitation, including human activities such as grazing? What are the genetic and physiological bases of plants phenological responses?How does phenological change inluence ecosystem structure and function at diferent scales and feedback to the climate system? Investigating these research questions requires, irst of all, new data of the associated environmental variables, and consistent and reliable phenological observation using diferent methodologies(i.e. in situ observations and remote sensing). | Miaogen Shen Shilong Piao Tsechoe Dorji Qiang Liu Nan Cong Xiaoqiu Chen Shuai An Shiping Wang Tao Wang Gengxin Zhang | 2015 | National Science Review2015，2，4： | 13 |
| 6 | Internet of Things to network smart devices for ecosystem monitoring显示文摘Smart, real-time, low-cost, and distributed ecosystem monitoring is essential for understanding and managing rapidly changing ecosystems. However, new techniques in the big data era have rarely been introduced into operational ecosystem monitoring, particularly for fragile ecosystems in remote areas.We introduce the Internet of Things(IoT) techniques to establish a prototype ecosystem monitoring system by developing innovative smart devices and using IoT technologies for ecosystem monitoring in isolated environments. The developed smart devices include four categories: large-scale and nonintrusive instruments to measure evapotranspiration and soil moisture, in situ observing systems for CO2 and d13 C associated with soil respiration, portable and distributed devices for monitoring vegetation variables, and Bi-CMOS cameras and pressure trigger sensors for terrestrial vertebrate monitoring. These new devices outperform conventional devices and are connected to each other via wireless communication networks. The breakthroughs in the ecosystem monitoring IoT include new data loggers and longdistance wireless sensor network technology that supports the rapid transmission of data from devices to wireless networks. The applicability of this ecosystem monitoring IoT is verified in three fragile ecosystems, including a karst rocky desertification area, the National Park for Amur Tigers, and the oasis-desert ecotone in China. By integrating these devices and technologies with an ecosystem monitoring information system, a seamless data acquisition, transmission, processing, and application IoT is created. The establishment of this ecosystem monitoring IoT will serve as a new paradigm for ecosystem monitoring and therefore provide a platform for ecosystem management and decision making in the era of big data. | Xin Li Ning Zhao Rui Jin Shaomin Liu Xiaomin Sun Xuefa Wen Dongxiu Wu Yan Zhou Jianwen Guo Shiping Chen Ziwei Xu Mingguo Ma Tianming Wang Yonghua Qu Xinwei Wang Fangming Wu Yuke Zhou | 2019 | Science Bulletin2019，64，17： | 10 |
| 7 | Pathogenic mechanisms and control strategies of Botrytis cinerea causing post-harvest decay in fruits and vegetables显示文摘Botrytis cinerea is a significant necrotrophic plant pathogen causing devastating diseases on more than 500 plant species,especially on fresh fruits and vegetables,resulting in the economic losses ranging from$10 billion to$100 billion worldwide.This fungal pathogen invades nearly all parts of plants including stems,leaves,flowers,fruits,and seeds at both pre-harvest and post-harvest stages.Due to its wide host range and the huge economic losses that it causes,extensive investigations have been carried out to effectively control this plant pathogen.It is beneficial for exploring the pathogenic mechanisms of B.cinerea to provide fundamental basis for control strategies.In recent years,tremendous progress has been made in understanding these pathogenic genes and regulatory pathways,as well as the control strategies of B.cinerea.Here,the current knowledge will be summarized in this review. | Li Hua Chen Yong Zhang Zhanquan Li Boqiang Qin Guozheng Tian Shiping | 2018 | Food Quality and Safety2018，2，3： | 8 |
| 8 | Fabrication of metal-organic framework-based nanofibrous separator via one-pot electrospinning strategy显示文摘Metal-organic framework(MOF)/polymer composites have attracted extensive attention in the recent years.However,it still remains challenging to efficiently and effectively fabricate these composite materials.In this study,we propose a facile one-pot electrospinning strategy for preparation of HKUST-1/polyacrylonitrile(PAN)nanofibrous membranes from a homogeneous stock solution containing HKUST-1 precursors and PAN.MOF crystallization and polymer solidification occur simultaneously during the electrospinning process,thus avoiding the issues of aggregation and troublesome multistep fabrication of the conventional approach.The obtained HKUST-1/PAN electrospun membranes show uniform MOF distribution throughout the nanofibers and yield good mechanical properties.The membranes are used as separators in Li-metal full batteries under harsh testing conditions,using an ultrathin Li-metal anode,a high mass loading cathode,and the HKUST-1/PAN nanofibrous separator.The results demonstrate significantly improved cycling performance(capacity retention of 83.1%after 200 cycles)under a low negative to positive capacity ratio(N/P ratio of 1.86).The improvement can be attributed to an enhanced wettability of the separator towards electrolyte stemmed from the nanofibrous structure,and a uniform lithium ion flux stabilized by the open metal sites of uniformly distributed HKUST-1 particles in the membrane during cycling. | Congcong Chen Weidong Zhang He Zhu Bo-Geng Li Yingying Lu Shiping Zhu | 2021 | Nano Research2021，14，5： | 4 |
| 9 | miR395-regulated sulfate metabolism exploits pathogen sensitivity to sulfate to boost immunity in rice显示文摘MicroRNAs (miRNAs) play important roles in plant physiological activities. However, their roles and molecular mechanisms in boosting plant immunity, especially through the modulation of macronutrient metabolism in response to pathogens, are largely unknown. Here, we report that an evolutionarily conserved miRNA, miR395, promotes resistance to Xanthomonas oryzae pv. oryzae (Xoo) and X. oryzae pv. oryzicola (Xoc), two destructive bacterial pathogens, by regulating sulfate accumulation and distribution in rice. Specifically, miR395 targets and suppresses the expression of the ATP sulfurylase gene OsAPS1, which functions in sulfate assimilation, and two sulfate transporter genes, OsSULTR2;1 and OsSULTR2;2, which function in sulfate translocation, to promote sulfate accumulation, resulting in broad-spectrum resistance to bacterial pathogens in miR395-overexpressing plants. Genetic analysis revealed that miR395-triggered resistance is involved in both pathogen-associated molecular pattern-triggered immunity and R gene-mediated resistance. Moreover, we found that accumulated sulfate but not S-metabolites inhibits proliferation of pathogenic bacteria, revealing a sulfate-mediated antibacterial defense mechanism that differs from sulfur-induced resistance. Furthermore, compared with other bacteria, Xoo and Xoc, which lack the sulfate transporter CysZ, are sensitive to high levels of extracellular sulfate. Accordingly, miR395-regulated sulfate accumulation impaired the virulence of Xoo and Xoc by decreasing extracellular polysaccharide production and biofilm formation. Taken together, these results suggest that rice miR395 modulates sulfate metabolism to exploit pathogen sensitivity to sulfate and thereby promotes broad-spectrum resistance. | Zeyu Yang Shugang Hui Yan Lv Miaojing Zhang Dan Chen Jingjing Tian Haitao Zhang Hongbo Liu Jianbo Cao Wenya Xie Changyin Wu Shiping Wang Meng Yuan | 2022 | Molecular Plant2022，15，4： | 3 |
| 10 | printed electrode immunosensors for Schistosoma japonicum显示文摘 | ZENG Shaohua TIAN Zhi CHE Hongli YANG Huihui CHEN Xiuchun FENG Qimei ZHOU Yunfei ZHANG Shuju WU Zhaoyang WANG Shiping | 2012 | 中南大学学报(医学版)2012，37，6： | 3 |
| 11 | The rice Raf-like MAPKKK OsILA1 confers broad-spectrum resistance to bacterial blight by suppressing the OsMAPKK4-OsMAPK6 cascade显示文摘Mitogen-activated protein kinase kinase kinase(MAPKKK)are the first components of MAPK cascades,which play pivotal roles in signaling during plant development and physiological processes.The genome of rice encodes 75 MAPKKKs,of which 43 are Raf-like MAPKKKs.The functions and action modes of most of the Raf-like MAPKKKs,whether they function as bona fide MAPKKKs and which are their downstream MAPKKs,are largely unknown.Here,we identified the osmapkkk43 mutant,which conferred broad-spectrum resistance to Xanthomonas oryzae pv.oryzae(Xoo),the destructive bacterial pathogen of rice.Oryza sativa(Os)MAPKKK43 encoding a Raf-like MAPKKK was previously known as Increased Leaf Angle 1(OsILA1).Genetic analysis indicated that OsILA1 functioned as a negative regulator and acted upstream of the OsMAPKK4-OsMAPK6 cascade in rice-Xoo interactions.Unlike classical MAPKKKs,OsILA1 mainly phosphorylated the threonine 34 site at the N-terminal domain of OsMAPKK4,which possibly influenced the stability of OsMAPKK4.The N-terminal domain of OsILA1 is required for its homodimer formation and its full phosphorylation capacity.Taken together,our findings reveal that OsILA1 acts as a negative regulator of the OsMAPKK4-OsMAPK6 cascade and is involved in rice-Xoo interactions. | Jie Chen Lihan Wang Zeyu Yang Hongbo Liu Chuanliang Chu Zhenzhen Zhang Qinglu Zhang Xianghua Li Jinghua Xiao Shiping Wang Meng Yuan | 2021 | Journal of Integrative Plant Biology2021，63，10： | 3 |
| 12 | Complex Helmholtz Coils for Producing Uniform Magnetic Fields显示文摘In imaging experiments in ion-atom collisions, due to its small mass, the electron is easy to escape from the extraction electrostatic field, and this makes the complete collection difficult. In order to improve the solid angle for imaging of electrons, a uniform magnetic field is needed to restrict the electron trajectories .Usually, a pair of same coils, called Helmholtz coils, is employed to produce magnetic field. In | Feng Wentian, Ma Xinwen, Liu Huiping, Chen Lanfang, Li Bin and Cao Shiping | 2005 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2005，，1： | 3 |
| 13 | Comparative analysis of gene expression at early seedling stage between a rice hybrid and its parents using a cDNA microarray of 9198 uni-sequences显示文摘Using a cDNA microarray consisting of 9198 expressed sequence tags,we surveyed the gene expression profiles in shoots and roots of a rice hybrid,Liangyoupei 9 and its parents Peiai 64s and 93-11 at 72 h after germination. A total of 8587 sequences had detectable signals in both shoots and roots of the three genotypes. A total of 1571 sequences exhibited significant (P<0.01) expression differences in shoots or roots among the three genotypes,of which 121 showed expression poly-morphisms in both shoots and roots,and 870 revealed significant expression differences between the hybrid and one of the parents. The expression polymorphism of the sequences was associated with the functional categories of the sequences. They occurred more frequently in categories of carbohy-drate,energy and lipid metabolisms and stress response than expected,while less frequently in categories of amino acid metabolism,transcription and translation regulation,and signal transduction. A total of 214 sequences exhibited significant (P<0.05) mid-parent heterosis in expression,of which 117 had homology to genes with known functions,assigned in the categories of basic metabolism,genetic information processing,cell growth and death,signal transduction,transportation and stress response. The results may provide useful information for exploring the relationship between gene expression polymorphism and phenotypic variation,and for characterizing the molecular mechanism of seedling development and heterosis in rice. | HUANG Yi LI Lihua CHEN Ying LI Xianghua XU Caiguo WANG Shiping ZHANG Qifa | 2006 | Science China(Life Sciences)2006，49，6： | 2 |
| 14 | A Preliminary Investigation on Phenotypic Characteristics of Phytophthora infestans from Guizhou Province显示文摘[Objective] This study aimed to investigate the phenotypic characteristics of Phytophthora infestans from Guizhou Province.[Method] The metalaxyl resistance,mating type and isozyme genotype of 292 P. infestans strains isolated from Guizhou Province were analyzed.[Result] Metalaxyl-resistant P. infestans strains were found in different areas of Guizhou Province. Resistant,moderately resistant and susceptible strains accounted for 35. 62%,33. 90% and 30. 48%,respectively. Both mating types A1 and A2 were found,which accounted for 65. 38% and 34. 62%,respectively. P. infestans strains isolated from Guizhou Province mainly belonged to Gpi genotypes 100 /100 and 100 /100 /111,accounting for 50. 68% and 43. 84%,respectively.[Conclusion]This study provides the theoretical basis for the prevention and control of potato late blight in Guizhou Province. | Lu HUANG Xiaojun CHEN Haiyong HE Xuehui LIU Shiping WU | 2016 | Agricultural Biotechnology2016，5，3： | 2 |
| 15 | Molecular basis for optimizing sugar metabolism and transport during fruit development显示文摘Sugars are fundamental metabolites synthesized in leaves and further delivered to fruit in fruit crops.They not only provide'sweetness'as fruit quality traits,but also function as signaling molecules to modulate the responses of fruit to environmental stimuli.Therefore,the understanding to the molec-ular basis for sugar metabolism and transport is crucial for improving fruit quality and dissecting responses to abiotic/biotic factors.Here,we provide a review for mol ecular components involved in sugar metabolism and transport,crostalk with hormone signaling and the roles of sugars in responses to abiotic and biotic stresses.Moreover,we also envisage the strategies for optimizing sugar metabolism during fruit quality maintenance. | Tong Chen Zhanquan Zhang Boqiang Li Guozheng Qin Shiping Tian | 2021 | aBIOTECH2021，2，3： | 2 |
| 16 | Revealing the surface electronic structures of AIGaN deep-ultraviolet multiple quantum wells with lateral polarity domains显示文摘We report on the carrier dynamic and electronic structure investigations on AlGaN-based deep-ultraviolet multiple quantum wells (MQWs)with lateral polarity domains.The localized potential maximum is predicted near the domain boundaries by first-principle calculation,suggesting carrier localization and efficient radiative recombination.More importantly,lateral band diagrams of the MQWs are proposed based on electron affinities and valance band levels calculated from ultraviolet(UV)photoelectron spectroscopy.The proposed lateral band diagram is further demonstrated by surface potential distribution collected by Kelvin probe microscopy and the density-of-state calculation of energy bands.This work illustrates that lateral polarity structures are playing essential roles in the electronic properties of II nitride photonic devices and may provide novel perspective in the realization of high-efficiency UV emitters. | WEI GUO LI CHEN HOUQIANG XU YINGDA QIAN MOHEB SHEIKHI JASON HOO SHIPING GUO LIANG XU JIANZHE LU FERAS ALQATARI XIAOHANG LI KAIYAN HE ZHE CHUAN FENG JICHUN YE | 2020 | Photonics Research2020，8，6： | 2 |
| 17 | Natural variations of ZmSRO1d modulate the trade-off between drought resistance and yield by affecting ZmRBOHC-mediated stomatal ROS production in maize显示文摘While crop yields have historically increased,drought resistance has become a major concern in the context of global climate change.The trade-off between crop yield and drought resistance is a common phenomenon;however,the underlying molecular modulators remain undetermined.Through genome-wide association study,we revealed that three non-synonymous variants in a drought-resistant allele of ZmSRO1d-R resulted in plasma membrane localization and enhanced mono-ADP-ribosyltransferase activity of ZmSRO1d toward ZmRBOHC,which increased reactive oxygen species(ROS)levels in guard cells and promoted stomatal closure.ZmSRO1d-R enhanced plant drought resilience and protected grain yields under drought conditions,but it led to yield drag under favorable conditions.In contrast,loss-of-function mutants of ZmRBOHC showed remarkably increased yields under well-watered conditions,whereas they showed compromised drought resistance.Interestingly,by analyzing 189 teosinte accessions,we found that the ZmSRO1d-R allele was present in teosinte but was selected against during maize domestication and modern breeding.Collectively,our work suggests that the allele frequency reduction of ZmSRO1d-R in breeding programs may have compromised maize drought resistance while increased yields.Therefore,introduction of the ZmSRO1d-R allele into modern maize cultivars would contribute to food security under drought stress caused by global climate change. | Huajian Gao Junjun Cui Shengxue Liu Shuhui Wang Yongyan Lian Yunting Bai Tengfei Zhu Haohao Wu Yijie Wang Shiping Yang Xuefeng Li Junhong Zhuang Limei Chen Zhizhong Gong Feng Qin | 2022 | Molecular Plant2022，15，10： | 2 |
| 18 | Structure and magnetic properties of a novel heterospin 1-D chain complex containing both Cu(Ⅱ) and nitroxide radicals as spin branches显示文摘A novel heterospin one-dimensional (1-D) chain complex containing both Cu(Ⅱ) and nitroxide radical ligands, {[Cu(tcph)(H2O)4][Cu(tcph)(NIT3Py)2]·2H2O}n (1) (H2tcph = tetrachloro-phthalic acid, NIT3Py = 2-(3′-pyridyl)-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxide), has been synthesized and structurally characterized. The structure consists of neutral chains of copper(Ⅱ) ions bridged by tcph and coordinated alternatively by nitroxide radicals as spin branches and solvated water as co-ligand. The magnetic data were fitted using an approximate theoretical model based on population analysis to obtain the coupling parameter values of JCu2-Rad = 22.4 cm-1 and J′Cu1-Cu2 = -2.4 cm-1, indicating the intramolecular ferromagnetic interaction between Cu(Ⅱ) and NIT3Py and weak antiferromagnetic interaction between Cu1 and Cu2 linked by tcph. | MA Yue, CHEN XiaoPing, CAO Dong, YAN ShiPing & LIAO DaiZheng Department of Chemistry, Nankai University, Tianjin 300071, China | 2009 | Science China Chemistry2009，52，9： | 2 |
| 19 | Effect of Cu on the boron segregation at grain boundaries and vacancy-type defects in ultra-low carbon micro-alloy steels显示文摘By thermal neutron irradiation particle tracking autoradiography(PTA)technique,the development of boron segregation at grain boundaries in ultra-low carbon micro-alloy steels was investigated during cooling from 1150°C to 850°C,and the effect of Cu on boron segregation at grain boundaries was discussed.By positron annihilation lifetime(PAL)technique,the changes of vacancy-type defects with temperatures and the effect of Cu on vacancy-type defects in the cooling process were discussed.Results show that,the concentration of boron at grain boundaries increases rapidly at the beginning of the cooling;after that,it begins to decrease;and then,it increases gradually again.The addition of Cu not only increases the concentration of boron at grain boundaries but also speeds up the development process of boron segregation at grain boundaries.During the continuous cooling process,the addition of Cu significantly affects the change of vacancy-type defects with temperatures in ultra-low carbon micro-alloy steels. | YANG RuiJie WU Ping LI XiangLong ZHANG ShiPing CHEN Sen WANG BaoYi JU Xin | 2014 | Science China(Technological Sciences)2014，57，6： | 2 |
| 20 | Direct demonstration of carrier distribution and recombination within step-bunched UV-LEDs显示文摘AlGaN-based solid state UV emitters have many advantages over conventional UV sources. However, UV-LEDs still suffer from numerous challenges, including low quantum efficiency compared to their blue LED counterparts. One of the inherent reasons is a lack of carrier localization effect inside fully miscible AlGaN alloys. In the pursuit of phase separation and carrier localization inside the active region of AlGaN UV-LED, utilization of highly misoriented substrates proves to be useful, yet the carrier distribution and recombination mechanism in such structures has seldom been reported. In this paper, a UV-LED with step-bunched surface morphology was designed and fabricated, and the internal mechanism of high internal quantum efficiency was studied in detail. The correlation between microscale current distribution and surface morphology was provided, directly demonstrating that current prefers to flow through the step edges of the epitaxial layers. Experimental results were further supported by numerical simulation. It was found that efficient radiative recombination centers were formed in the inclined quantum well regions. A schematic three-dimensional energy band structure of the multiple quantum wells(MQWs) across the step was proposed and helps in further understanding the luminescence behavior of LEDs grown on misoriented substrates. Finally, a general principle to achieve carrier localization was proposed, which is valid for most ternary Ⅲ-Ⅴ semiconductors exhibiting phase separation. | HOUQIANG XU JIEAN JIANG LI CHEN JASON HOO LONG YAN SHIPING GUO CAI SHEN YANPING WEI HUA SHAO ZI-HUI ZHANG WEI GUO JICHUN YE | 2021 | Photonics Research2021，9，5： | 2 |
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