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| 1 | AGRICULTURAL GREEN DEVELOPMENT TO ACHIEVE FOOD SECURITY AND CARBON REDUCTION IN THE CONTEXT OF CHINA'S DUAL CARBON GOALS显示文摘The agricultural sector,a major source of greenhouse gas emissions,and emissions from agriculture must be reduced substantially to achieve carbon(C)neutrality.Based on a literature analysis and other research results,this study investigated the effects and prospects of C reduction in agricultural systems under different scenarios(i.e.,methods and approaches)in the context of China's dual C goals,as those working in the agricultural sector have yet to reach a consensus on how to move forward.Different views,standards,and countermeasures were analyzed to provide a reference for agricultural action supporting China's C neutrality goal. | Yulong YIN Kai HE Zhong CHEN Yangyang LI Fengling REN Zihan WANG Yingcheng WANG Haiqing GONG Qichao ZHU Jianbo SHEN Xuejun LIU Zhenling CUI | 2023 | Frontiers of Agricultural Science and Engineering2023，10，2： | 2 |
| 2 | Room-Temperature Superconductivity in Yb/Lu Substituted Clathrate Hexahydrides under Moderate Pressure显示文摘Room temperature superconductivity is a dream that mankind has been chasing for a century.In recent years,the synthesis of H3S,LaH10,and C-S-H compounds under high pressures has gradually made that dream become a reality.But the extreme high pressure required for stabilization of hydrogen-based superconductors limit their applications.So,the next challenge is to achieve room-temperature superconductivity at significantly low pressures,even ambient pressure.In this work,we design a series of high temperature superconductors that can be stable at moderate pressures by incorporating heavy rare earth elements Yb/Lu into sodalite-like clathrate hexahydrides.In particular,the critical temperatures(T_(c))of Y_(3)LuH_(24),YLuH_(12),and YLu_(3)H_(24)can reach 283 K at 120 GPa,275 K at 140 GPa,and 288 K at 110 GPa,respectively.Their critical temperatures are close to or have reached room temperature,and minimum stable pressures are significantly lower than that of reported room temperature superconductors.Our work provides an effective method for the rational design of low-pressure stabilized hydrogen-based superconductors with room-temperature superconductivity simultaneously and will stimulate further experimental exploration. | Mingyang Du Hao Song Zihan Zhang Defang Duan Tian Cui | 2022 | Research2022，，4： | 1 |
| 3 | Access control scheme with attribute revocation for SWIM显示文摘Access control scheme is proposed for System Wide Information Management(SWIM) to address the problem of attribute revocation in practical applications.Based on the attribute based encryption(ABE),this scheme introduces the proxy re-encryption mechanism and key encrypting key(KEK) tree to realize fine-grained access control with attribute revocation.This paper defines the attributes according to the status quo of civil aviation.Compared with some other schemes proposed before,this scheme not only shortens the length of ciphertext(CT) and private key but also improves the efficiency of encryption and decryption.The scheme can resist collusion attacks and ensure the security of data in SWIM. | Wu Zhijun Cui Zihan Wang Caiyun Lei Jin | 2017 | The Journal of China Universities of Posts and Telecommunications2017，24，6： | 1 |
| 4 | An enlarged polygon method without binary variables for obstacle avoidance trajectory optimization显示文摘In this article,an Enlarged Polygon/Polyhedron(ELP)method without binary variables is proposed to represent the Convex Polygonal/Polyhedral Obstacle Avoidance(CPOA)constraints in trajectory optimization.First,the equivalent condition of a point outside the convex set is given and proved rigorously.Then,the ELP condition describing the CPOA constraints equivalently is given without introducing binary variables,and its geometric meaning is explained.Finally,the ELP method is used to transform the CPOA trajectory optimization problem into an optimal control problem without binary variables.The effectiveness and validity of ELP method are demonstrated through simulations with both simple linear dynamic model(unmanned aerial vehicle)and complex nonlinear dynamic model(hypersonic glide vehicle).Comparison indicates the computational time of ELP method is only 1%-20%of that of the traditional Mixed-Integer Programming(MIP)method. | Rouhe ZHANG Zihan XIE Changzhu WEI Naigang CUI | 2023 | Chinese Journal of Aeronautics2023，36，8： | 0 |
| 5 | Cubic H_(3)S stabilized by halogens:High-temperature superconductors at mild pressure显示文摘Superconductivity in compressed sulfur hydride(H_(3)S)at above 200 K has attracted great interest in the study of hydrogen-based superconductors.However,the pressure required to stabilize H_(3)S is 150 GPa,posing significant challenges for experiments.Therefore,it is essential to find a strategy to reduce this pressure.In this study,by introducing halogen atoms into the H-S system,we discovered that hydrogen-based superconductors of H_(6)SX(X=Cl and Br)can be dynamically stable at mild pressures(5 GPa for H_(6)SCl and H_(6)SBr),as confirmed by first-principles calculations.Through the analysis of the bond properties,we revealed that introducing halogen elements would strengthen the H–S covalent bonds to reduce the dynamically stable pressure of H_(3)S.Our study provides a scheme to reduce the superconducting pressure of hydrogen-based superconductors. | Zihao Huo Defang Duan Qiwen Jiang Zihan Zhang Tian Cui | 2023 | Science China(Physics,Mechanics & Astronomy)2023，66，11： | 0 |
| 6 | Blockchain-based Distributed Power Market Trading Mechanism显示文摘Distributed power market trading has the characteristics of large number of participants,scattered locations,small single trading scale,and point-to-point trading.The traditional centralized power trading model has the problems of large load,low efficiency,high cost,reliance on third parties and unreliable data.With the characteristics of decentralization and nontampering,blockchain can establish a point-to-point trusted trading environment and provide effective solutions to the above problems.Therefore,this paper proposed a distributed power market trading framework based on blockchain.In this framework,the distributed power supply characteristics and trading needs of each participant are analyzed,a complete distributed trading process based on blockchain is designed.In addition,we have studied the key technologies of distributed power market trading.With the goal of power service reputation and maximum revenue of distributed power providers,we have established a matching degree model,a distributed power market trading optimization model,and designed a smart contract-based power market trading optimization strategy and power trading settlement strategy.Finally,we designed experiments to verify the performance of the proposed framework. | Dongjun Cui Jinghan He Guofang Zhang Zihan Hou | 2022 | Computers, Materials & Continua2022，，8： | 0 |
| 7 | Diversity and independent evolutionary profiling of rodent-borne viruses in Hainan,a tropical island of China显示文摘The risk of emerging infectious diseases(EID)is increasing globally.More than 60%of EIDs worldwide are caused by animal-borne pathogens.This study aimed to characterize the virome,analyze the phylogenetic evolution,and determine the diversity of rodent-borne viruses in Hainan Province,China.We collected 682 anal and throat samples from rodents,combined them into 28 pools according to their species and location,and processed them for next-generation sequencing and bioinformatics analysis.The diverse viral contigs closely related to mammals were assigned to 22 viral families.Molecular clues of the important rodent-borne viruses were further identified by polymerase chain reaction for phylogenetic analysis and annotation of genetic characteristics such as arenavirus,coronavirus,astrovirus,pestivirus,parvovirus,and papillomavirus.We identified pestivirus and bocavirus in Leopoldoms edwardsi from Huangjinjiaoling,and bocavirus in Rattus andamanensis from the national nature reserves of Bangxi with low amino acid identity to known pathogens are proposed as the novel species,and their rodent hosts have not been previously reported to carry these viruses.These results expand our knowledge of viral classification and host range and suggest that there are highly diverse,undiscovered viruses that have evolved independently in their unique wildlife hosts in inaccessible areas. | Youyou Li Chuanning Tang Yun Zhang Zihan Li Gaoyu Wang Ruoyan Peng Yi Huang Xiaoyuan Hu Henan Xin Boxuan Feng Xuefang Cao Yongpeng He Tonglei Guo Yijun He Haoxiang Su Xiuji Cui Lina Niu Zhiqiang Wu Jian Yang Fan Yang Gang Lu Lei Gao Qi Jin Meifang Xiao Feifei Yin Jiang Du | 2023 | Virologica Sinica2023，38，5： | 0 |
| 8 | Sarcopenic obesity in liver disease: Handling both sides of the penny显示文摘Skeletal muscle and fat tissue show distinct pathophysiological roles and pivotal functions.The culmination of muscle wasting and fat accumulation represents an opposite terminal of each state.Specifically,this situation has been designated as sarcopenic obesity.However,sarcopenic obesity still lacks a unanimous definition,diagnostic criteria,and generalized modalities for assessment in the context of versatile liver diseases.Moreover,the underpinning mechanisms by which a combination of abnormal skeletal muscle and fat tissue leads to the progression of liver disease and impairs health‐related consequences are still elusive.Additionally,the interplay between skeletal muscle and fat,and the driving factors that shift different body compositions are not well understood.Therefore,in this review,we discuss skeletal muscle and fat components,with the purpose of conceptualization,as well as interpret their roles in liver diseases.We focus on the definitions,diagnostic criteria,and currently available measurements for sarcopenic obesity in the literature.We comprehensively discuss recent data and evidence regarding the potential role of sarcopenic obesity in the development and progression of numerous liver diseases and associated conditions,including nonalcoholic fatty liver disease,chronic viral hepatitis,cirrhosis,and liver transplantation.Furthermore,explicit information related to the pathogenesis of sarcopenic obesity from basic research is also provided in this narrative review.Finally,we discuss,from the clinical perspective of view,how to manage sarcopenic obesity using nutritional,physical,and pharmacological methods. | Yangyang Hui Binxin Cui Xiaoyu Wang Mingyu Sun Yifan Li Wanting Yang Gaoyue Guo Lihong Mao Zihan Yu Xiaofei Fan Chao Sun | 2022 | Portal Hypertension & Cirrhosis2022，1，1： | 0 |
| 9 | Characteristics of the vertical structure of the atmospheric turbulence in the Tibetan Plateau显示文摘The Tibetan Plateau(TP)has unique atmospheric dynamics and thermal structures that originate from its giant terrain and complex climate.High vertical-resolution thermal radiosondes were launched near the central(Lhasa,91°06′E,29°36′N,3670 m above sea level(ASL))and marginal(Da Qaidam,95°21′E,37°51′N,3180 m ASL)areas of the TP during the summers of 2018 and 2020,respectively.Atmospheric turbulence parameters were calculated,and the characteristics of the atmospheric turbulent vertical structure at sunset in these two areas were analyzed and compared.Affected by TP thermal forcing and stably controlled by the summer monsoon anticyclone,the atmospheric refractive index structure constant(C_(n)^(2))tended to increase and then decrease with increasing height,reaching a maximum at the tropopause(~18 km ASL)at the Lhasa site.Although C_(n)^(2) at the Da Qaidam site also tended to increase at the tropopause,the position of the strong turbulent band(STB)(5–7 km ASL)was below the tropopause height corresponding to the potential temperature lapse rate minimum.The vertical distribution of C_(n)^(2) at the two sites,particularly regarding the position of the STB,was highly correlated with the atmospheric stability(Ri)and the thermal mixing scale(L_(T)).The significant correlations among the three parameters(STB,Ri,and L_(T))indicated that the strong fluctuations in temperature caused by thermal mixing were the dominant factor causing the Ri to be less than its critical value of 0.25.Moreover,the suppression strength involving the upward transport of the heat sources was the main reason for the different turbulent vertical structures and STB positions at the two sites.The zonal mean thermodynamic and dynamical fields derived from the reanalysis data also showed a height difference in the heat sources transported to the troposphere at the two sites.In the marginal TP,the material and energy in the lower troposphere were transported by the turbulent atmosphere upward along the slope of the mountain and converged at the central TP(28°N–35°N)with strong thermal forcing up to the tropopause.In the STB of the Lhasa site,the turbulent dissipation rate and eddy diffusion coefficient increased sharply,indicating that the turbulent atmosphere in this central site was highly diffused,and the small-scale turbulence transported the material and energy upward. | Kun ZHANG Yang WU Feifei WANG Xuebin LI Shengcheng CUI Zihan ZHANG Xiaoqing WU Ningquan WENG Tao LUO Yinbo HUANG | 2022 | Science China Earth Sciences2022，65，7： | 0 |
| 10 | High T_(c) superconductivity in layered hydrides XH_(15) (X = Ca, Sr, Y, La) under high pressures显示文摘The theoretical predictions and experimental synthesis of H_(3)S and LaH_(10) superconductors with record high superconducting transition temperatures(T_(c))have promoted the hydrogen-based superconducors to be a research hotspot in the field of solid-state physics.Here,we predict an unprecedented layered structure CaH15,with high T_(c) of 189 K at 200 GPa using ab initio calculations.As concerns the novel structure,one layer is made of a hydrogen nonagon,the other layer consists of a Ca atom and six H_(2) molecular units surrounding the Ca atom.This layered structure was also found in SrH_(15),YH_(15),and LaH_(15) at high pressures,each materials exhibit high T_(c) especially YH_(15) can reach above 200 K at 220 GPa.It represents the second class of layered superhydrides with high value of Tc after pentagraphene like HfH10. | Yue Chen Zhengtao Liu Ziyue Lin Qiwen Jiang Mingyang Du Zihan Zhang Hao Song Hui Xie Tian Cui Defang Duan | 2022 | Frontiers of physics2022，17，6： | 0 |
| 11 | Dissecting the Contributing Role of Divergent Adipose Tissue to Multidimensional Frailty in Cirrhosis显示文摘Background and Aims:Emerging evidence has demonstrated that abnormal body composition may potentiate the development of frailty,whereas little work focuses on the role of divergent adipose tissue.Therefore,we aimed to determine the potential contribution of adipose tissue distribution to multidimensional frailty in decompensated cirrhosis.Methods:We conducted a retrospective cohort study.Divergent adipose tissues were assessed by computed tomography-derived subcutaneous adipose tissue index(SATI),visceral adipose tissue index(VATI)and total adipose tissue index(TATI),respectively.Frailty was identified by our validated self-reported Frailty Index.Multiple binary logistic models incorporating different covariates were established to assess the relationship between adipose tissue distribution and frailty.Results:The study cohort comprised 245 cirrhotic patients with 45.3%being male.The median Frailty Index,body mass index(BMI)and model for end-stage liver disease(MELD)score were 0.11,24.3 kg/m2 and 8.9 points,respectively.In both men and women,patients who were frail exhibited lower levels of SATI in comparison with nonfrail patients.SATI inversely correlated with Frailty Index in the entire cohort(rs=−0.1361,p=0.0332).Furthermore,SATI or TATI was independently associated with frail phenotype in several multiple logistic regression models adjusting for age,BMI,presence of ascites,sodium,Child-Pugh class or MELD score in isolation.Conclusions:In the context of decompensated cirrhosis,low SATI and concomitant TATI were associated with higher risk of being frail.These findings highlight the importance to further apply tissue-specific tools of body composition in place of crude metric like BMI. | Lihong Mao Chaoqun Li Xiaoyu Wang Mingyu Sun Yifan Li Zihan Yu Binxin Cui Gaoyue Guo Wanting Yang Yangyang Hui Xiaofei Fan Jie Zhang Kui Jiang Chao Sun | 2023 | Journal of Clinical and Translational Hepatology2023，11，1： | 0 |
| 12 | First-principles study on the conventional superconductivity of N-doped fcc-LuH_(3)显示文摘Recently,room-temperature superconductivity has been reported in a nitrogen-doped lutetium hydride at near-ambient pressure[Dasenbrock-Gammon et al.,Nature 615,244(2023)].The superconducting properties might arise from Fm3m-LuH_(3)−δNε.Here,we systematically study the phase diagram of Lu–N–H at 1 GPa using first-principles calculations,and we do not find any thermodynamically stable ternary compounds.In addition,we calculate the dynamic stability and superconducting properties of N-doped Fm3m-LuH_(3) using the virtual crystal approximation(VCA)and the supercell method.The R3m-Lu_(2)H_(5)N predicted using the supercell method could be dynamically stable at 50 GPa,with a T_(c) of 27 K.According to the VCA method,the highest T_(c) is 22 K,obtained with 1%N-doping at 30 GPa.Moreover,the doping of nitrogen atoms into Fm3m-LuH_(3) slightly enhances T_(c),but raises the dynamically stable pressure.Our theoretical results show that the T_(c) values of N-doped LuH_(3) estimated using the Allen–Dynes-modified McMillan equation are much lower than room temperature. | Zihao Huo Defang Duan Tiancheng Ma Zihan Zhang Qiwen Jiang Decheng An Hao Song Fubo Tian Tian Cui | 2023 | Matter and Radiation at Extremes2023，8，3： | 0 |
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