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| 1 | Pervasive intelligent endogenous 6G wireless systems:Prospects,theories and key technologies显示文摘The worldwide large-scale commercial deployment of 5G has commenced in 2020 for supporting enhanced Mobile BroadBand(eMBB),ultra-Reliable and Low-Latency Communications(uRLLC),and massive Machine-Type Communications(mMTC)services.Nevertheless,the upsurge of Artificial Intelligence(AI)-powered applications,the developmental law of one-decade-one-generation of wireless communications and the inherent limitations of 5G have also been spurring the industry and academia to dedicate their efforts to the research of future 6G wireless systems.6G will be a disruptive,pervasive,intelligent,and endogenous wireless system,which will revolutionize all walks of life and accelerate the transformation and innovation of the global society.In this paper,we present a forward-looking,comprehensive and in-depth analysis and technical identification of 6G.Specifically,we firstly introduce the fundamental theories of 6G in terms of potential requirements.Then,we focus our attention on the discussion of promising key technologies in terms of spectrum,air interface,delay,access,energy consumption,coverage,AI,electromagnetism,interaction,etc. | Yun Chen Wenfeng Liu Zhiang Niu Zhongxiu Feng Qiwei Hu Tao Jiang | 2020 | Digital Communications and Networks2020，6，3： | 3 |
| 2 | Parallel Spectral Clustering Based on MapReduce显示文摘Clustering is one of the most widely used techniques for exploratory data analysis.Spectral clustering algorithm,a popular modern clustering algorithm,has been shown to be more effective in detecting clusters than many traditional algorithms.It has applications ranging from computer vision and information retrieval to social science and biology.With the size of databases soaring,clustering algorithms have scaling computational time and memory use.In this paper,we propose a parallel spectral clustering implementation based on MapReduce.Both the computation and data storage are distributed,which solves the scalability problems for most existing algorithms.We empirically analyze the proposed implementation on both benchmark networks and a real social network dataset of about two million vertices and two billion edges crawled from Sina Weibo.It is shown that the proposed implementation scales well,speeds up the clustering without sacrificing quality,and processes massive datasets efficiently on commodity machine clusters. | Qiwei Zhong Yunlong Lin Junyang Zou Kuangyan Zhu Qiao Wang Lei Hu | 2013 | ZTE Communications2013，11，2： | 3 |
| 3 | PEG-mediated solvothermal synthesis of NaYF 4 :Yb/Er superstructures with efficient upconversion luminescence显示文摘 | Zhigang Chen Qiwei Tian Yuelin Song Jianmao Yang Junqing Hu | 2010 | Journal of Alloys and Compounds2010，，2： | 2 |
| 4 | A gene that underwent adaptive evolution, LAC2 (LACCASE), in Populus euphratica improves drought tolerance by improving water transport capacity显示文摘Drought severely limits plant development and growth;accordingly,plants have evolved strategies to prevent water loss and adapt to water deficit conditions.However,experimental cases that corroborate these evolutionary processes are limited.The LACCASEs(LACs)family is involved in various plant development and growth processes.Here,we performed an evolutionary analysis of LACs from Populus euphratica and characterized the functions of LACs in Arabidopsis and poplar.The results showed that in PeuLACs,multiple gene duplications led to apparent functional redundancy as the result of various selective pressures.Among them,PeuLAC2 underwent strong positive selection.Heterologous expression analyses showed that the overexpression of PeuLAC2 alters the xylem structure of plants,including thickening the secondary cell wall(SCW)and increasing the fiber cell length and stem tensile strength.Altogether,these changes improve the water transport capacity of plants.The analysis of the physiological experimental results showed that PeuLAC2-OE lines exhibited a stronger antioxidant response and greater drought tolerance than WT.Three genes screened by transcriptome analysis,NAC025,BG1,and UGT,that are associated with SCW synthesis and drought stress were all upregulated in the PeuLAC2-OE lines,implying that the overexpression of PeuLAC2 thickened the SCW,improved the water transport capacity of the plant,and further enhanced its drought tolerance.Our study highlights that genes that have undergone adaptive evolution may participate in the development of adaptive traits in P.euphratica and that PeuLAC2 could be a candidate gene for molecular genetic breeding in trees. | Zhimin Niu Guiting Li Hongyin Hu Jiaojiao Lv Qiwei Zheng Jianquan Liu Dongshi Wan | 2021 | Horticulture Research2021，8，1： | 2 |
| 5 | Warhead power assessment based on double hierarchy hesitant fuzzy linguistic term sets theory and gained and lost dominance score method显示文摘Warhead power assessment of the anti-ship missile plays a vital role in determining the optimal design of missile, thus having important strategic research significance. However, in the assessment process, expert’s judgement will directly affect the assessment accuracy. In addition,there are many criteria involved in the missile design alternatives. Some criteria with poor performance may be compensated by other criteria with excellent performance, and then it is impossible to find the truly optimal alternative. Aimed at solving these problems, this paper proposes a synthetical assessment process based on fuzzy hesitant linguistic term set and the Gained and Lost Dominance Score(GLDS) method. In order to improve the assessment accuracy of experts and solve the problem that experts generate different opinions, combined with the advantages of fuzzy hesitant sets and linguistic term sets, the double hierarchy hesitant fuzzy linguistic term sets are used in this paper to improve the accuracy of expert’s judgement. In order to effectively combine expert’s experience with the data of criteria, the evidence theory and entropy weight method are used to transfer the expert’s judgement to the weight. In order to avoid selecting defective alternative of missile design, the GLDS is used to fuse expert information and criteria information. Sensitivity analysis shows that the assessment process has sensitivity to some extent. However, when the fluctuation of expert’s assessment makes the fluctuation of θ in the range of-5% to 5%, the impact on the results is not quite conspicuous. The analysis of calculation result and comparative analysis show that the assessment process proposed in this paper is accurate enough, has great advantage in selecting the current and potential optimal alternative of missile design, and avoids the alternatives with low criteria performance that cannot be compensated by other criteria being selected. | Tianle YAO Weili WANG Run MIAO Qiwei HU Jun DONG Xuefei YAN | 2022 | Chinese Journal of Aeronautics2022，35，4： | 2 |
| 6 | Genetic Research and Utilization Reference of Saccharum spontaneum L.显示文摘[Objectives]The genetic characteristics of wild germplasm resources of Saccharum spontaneum L.were further investigated to provide a scientific theoretical basis for the improved hybridization of sugarcane varieties.[Methods]The first flowering date data of 112 wild resources were statistically analyzed by broad heritability for 3 consecutive years,and pollen quantity and yield were investigated to provide reference for hybridization.[Results]The broad heritability of the first flowering date of S.spontaneum was 0.079.The differences in the first flowering date between the S.spontaneum resources were in the range of 4-49 d,with an average of 13.65 d.The inter-annual changes within 20 d accounted for 90 %,and only 4.5% exceeded 30 d.The first flowering dates of some S.spontaneum resources were obviously postponed after being treated.[Conclusions]In the hybridization season,the hybridization plan must be adjusted according to the actual situation of the flowering period to make full use of it. | Jiale JI Qinnan WANG Yongsheng QIU Cheng FU Qiwei WU Houxiang HU Feng ZHOU Chuiming ZHANG Huanying XU Jing XIE | 2019 | Agricultural Biotechnology2019，8，3： | 1 |
| 7 | Control of Fusarium wilt disease of cucumber plants with the application of a bioorganic fertilizer显示文摘 | Shusheng Zhang Waseem Raza Xingming Yang Jiang Hu Qiwei Huang Yangchun Xu Xinghai Liu Wei Ran Qirong Shen | 2008 | Biology and Fertility of Soils2008，，8： | 1 |
| 8 | Joint optimization of inspection-based and age-based preventive maintenance and spare ordering policies for single-unit systems显示文摘This paper presents a joint optimization policy of preventive maintenance(PM)and spare ordering for single-unit systems,which deteriorate subject to the delay-time concept with three deterioration stages.PM activities that combine a non-periodic inspection scheme with age-replacement are implemented.When the system is detected to be in the minor defective stage by an inspection for the first time,place an order and shorten the inspection interval.If the system has deteriorated to a severe defective stage,it is either repaired imperfectly or replaced by a new spare.However,an immediate replacement is required once the system fails,the maximal number of imperfect maintenance(IPM)is satisfied or its age reaches to a pre-specified threshold.In consideration of the spare’s availability as needed,there are three types of decisions,i.e.,an immediate or a delayed replacement by a regular ordered spare,an immediate replacement by an expedited ordered spare with a relative higher cost.Then,some mutually independent and exclusive renewal events at the end of a renewal cycle are discussed,and the optimization model of such a joint policy is further developed by minimizing the long-run expected cost rate to find the optimal inspection and age-replacement intervals,and the maximum number of IPM.A Monte-Carlo based integration method is also designed to solve the proposed model.Finally,a numerical example is given to illustrate the proposed joint optimization policy and the performance of the Monte-Carlo based integration method. | MA Weining ZHAO Fei LI Xin HU Qiwei SHANG Bingcong | 2022 | Journal of Systems Engineering and Electronics2022，33，5： | 1 |
| 9 | Malformations of the endangered Chinese sturgoon,Acipenser sinensis,and its causal agent显示文摘 | HU Jianying ZHANG Zhaobin WEI Qiwei | 2009 | Proceedings of the National Academy of Sciences of the United States of America2009，106，23： | 1 |
| 10 | Control of Fusarium wilt disease of cucumber plants with the application of a bioorganic fertilizer显示文摘 | Shusheng Zhang Waseem Raza Xingming Yang Jiang Hu Qiwei Huang Yangchun Xu Xinghai Liu Wei Ran Qirong Shen | 2008 | Biology and Fertility of Soils2008，，8： | 1 |
| 11 | A Secure Adaptive Routing Strategy Using Immune Mechanism in MANET显示文摘 | HU Yiqing XIONG Yah LU Qiwei GONG Xudong HUANG Wenchao | 2013 | Chinese Journal of Electronics2013，22，4： | 1 |
| 12 | RNA的poly(A)化修饰为真核细胞提供能量代谢稳态调控的便捷通道显示文摘文章简介本研究首次论证了poly(A)化可作为一个标签,实现真核细胞蛋白质合成的整体把控,而且首次把RNA转运引入到能量代谢稳态调控领域,为能量代谢紊乱相关疾病防治及药物研发提供了新研究视野。 | Peipei Shan Guangjian Fan Lianhui Sun Jinqin Liu Weifang Wang Chen Hu Xiaohong Zhang Qiwei Zhai Xiaoyu Song Liu Cao Yongping Cui 张胜萍 王传贵 | 2018 | 科学新闻2018，0，4： | 0 |
| 13 | Detector development at the Back-n white neutron source显示文摘Purpose Back-n is a white neutron beamline at China spallation neutron source,which was established in the year of 2018.It is a powerful facility for nuclear data measurement,neutron detector calibration,and radiation effect research.Method A series of detectors were built for different experiments,including beam monitoring,beam profile measurement,neutron induced secondaries(fission fragments,light charged particles and gamma)cross section measurement,and neutron resonance radiography,etc.A common digitization electronics and a cluster-based DAQ were developed for these detector systems.Most detectors have been employed at Back-n and serviced for experiments from the beginning of the beamline running.Results and conclusion As an overview of detectors of Back-n,the details of the detector design and the experiment performing are described in this paper.Some developing systems,e.g.,MTPC and B-MCP,are also included. | Fan Ruirui Li Qiang Bao Jie Li Yang Liu Rong Jiang Wei Ren Jie Zhang Qiwei Cao Ping Gu Minhao Ren Zhizhou Yi Han Tang Jingyu An Qi Bai Haofan Bai Jiangbo Chen Qiping Chen Yonghao Chen Zhen Cui Zengqi Fan Anchuan Feng Changqing Feng Fanzhen Gao Keqing Han Changcai Han Zijie He Guozhu He Yongcheng Hong Yang Hu Yiwei Huang Hanxiong Jia Weihua Jiang Haoyu Jiang Zhijie Jin Zhengyao Kang Ling Li Bo Li Chao Li Gong Li Jiawen Li Xiao Liu Jie Liu Shubin Luan Guangyuan Ning Changjun Qi Binbin Ruan Xichao Song Zhaohui Sun Kang Tan Zhixin Tang Shengda Wang Pengcheng Wang Zhaohui Wen Zhongwei Wu Xiaoguang Wu Xuan Xie Likun Yang Yiwei Yu Yongji Zhang Guohui Zhang Linhao Zhang Mohan Zhang Xianpeng Zhang Yuliang Zhang Yue Zhang Zhiyong Zhao Maoyuan Zhou Luping Zhou Zhihao Zhu Kejun The CSNS Back-n Collaboration | 2023 | Radiation Detection Technology and Methods2023，7，2： | 0 |
| 14 | Organ-specific alterations in circadian genes by vertical sleeve gastrectomy in an obese diabetic mouse model显示文摘Current therapies for obesity and related complications have been shown to have limited benefits,including unsatisfactory weight loss and poor metabolic improvement.With recent developments in bariatric surgery,promising advancements have been made in clinical and scientific research,particularly in the management of obesity and diabetes.Vertical sleeve gastrectomy(VSG)has become increasingly popular due to its safety,simplicity, | Qiwei Shen Yeping Yang Wenjuan Liu Meng Wang Yikai Shao Bo Xu Xiaolong Zhao Jinxing Zhu Rong Hua Wanzhu Jin Zhiyu Hu Jae Bum Kim Qinghua Wang Yiming Li Mengwei Zang Qiyuan Yao Zhaoyun Zhang | 2017 | Science Bulletin2017，62，7： | 0 |
| 15 | Seasonal Variations in Fishery Resources in Shenzhen Sea Area显示文摘Seasonal variations and causes for these were elaborated for fishery resources in Shenzhen sea area,to provide scientific basis for sustainable utilization and management of fishery resources in typical fisheries of South China Sea coasts. Based on the data of fishery resources collected through trawl surveys in Egong Bay fisheries area,Shenzhen,from August( autumn) and December( winter) of 2012 to March(spring) and May(summer) of 2013,seasonal variation of nekton species composition,stock density,dominant species composition,size spectra and biodiversity were studied. Results showed that there were 113 species of nekton in Shenzhen sea area,which belonged to 78 genus,50 families,14 orders and 3 classes. The number of species was the largest in summer(61 species) and smallest in autumn(53 species). In spring and winter,there was 56 species. The stock density and individual density of nekton were the minimum in summer(5950. 20 kg/km2 and 356. 45 ind/km2,respectively),whereas the percentage of fish stock density and individual density were the highest in summer(51. 99%and 42. 19%). The seasonal variations of size spectra indicated that fishing intensity was the highest in autumn,and was the lowest in summer. Additionally,biodiversity index presented significant seasonal variations,including Shannon-Wiener diversity index( H '),Margalef richness index( D') and Pielou evenness index( J'),with the same trend as summer > spring > autumn > winter. In conclusion,there are clear seasonal variations in the nekton species,biomass and structure in Egong Bay fisheries area in Shenzhen. Due to the difference in fishing intensity in different seasons( low intensity in summer and high intensity in autumn),community structure and function in summer are more stable than that in autumn and winter. Particularly,with the increase in the fishing intensity in autumn,k selection species will be replaced by r selection species. | Jiangmei MAO Huarong YUAN Jing YU Pimao CHEN Qiwei HU | 2017 | Asian Agricultural Research2017，9，9： | 0 |
| 16 | SARS-CoV-2 N protein enhances the anti-apoptotic activity of MCL-1 to promote viral replication显示文摘Viral infection in respiratory tract usually leads to cell death,impairing respiratory function to cause severe disease.However,the diversity of clinical manifestations of SARS-CoV-2 infection increases the complexity and difficulty of viral infection prevention,and especially the high-frequency asymptomatic infection increases the risk of virus transmission.Studying how SARS-CoV-2 affects apoptotic pathway may help to understand the pathological process of its infection.Here,we uncovered SARS-CoV-2 imployed a distinct anti-apoptotic mechanism via its N protein.We found SARS-CoV-2 virus-like particles(trVLP)suppressed cell apoptosis,but the trVLP lacking N protein didn’t.Further study verified that N protein repressed cell apoptosis in cultured cells,human lung organoids and mice.Mechanistically,N protein specifically interacted with anti-apoptotic protein MCL-1,and recruited a deubiquitinating enzyme USP15 to remove the K63-linked ubiquitination of MCL-1,which stabilized this protein and promoted it to hijack Bak in mitochondria.Importantly,N protein promoted the replications of IAV,DENV and ZIKV,and exacerbated death of IAV-infected mice,all of which could be blocked by a MCL-1 specific inhibitor,S63845.Altogether,we identifed a distinct anti-apoptotic function of the N protein,through which it promoted viral replication.These may explain how SARS-CoV-2 effectively replicates in asymptomatic individuals without cuasing respiratory dysfunction,and indicate a risk of enhanced coinfection with other viruses.We anticipate that abrogating the N/MCL-1-dominated apoptosis repression is conducive to the treatments of SARS-CoV-2 infection as well as coinfections with other viruses. | Pan Pan Weiwei Ge Zhiwei Lei Wei luo Yuqing Liu Zhanwen Guan Lumiao Chen Zhenyang Yu Miaomiao Shen Dingwen Hu Qi Xiang Wenbiao Wang Pin Wan Mingfu Tian Yang Yu Zhen Luo Xulin Chen Heng Xiao Qiwei Zhang Xujing Liang Xin Chen Yongkui Li Jianguo Wu | 2023 | Signal Transduction and Targeted Therapy2023，8，6： | 0 |
| 17 | Effect Evaluation of Summer Fishing Moratorium (SFM)in Daya Bay Based on Remote Sensing and Survey Data显示文摘[Objective] The paper was to quantitatively evaluate the maintenance effect of summer fishing moratorium(SFM) in Daya Bay. [Method]Based on satellite remote sensing and trawl surveys, the changes in sea surface temperature(SST), chlorophyll a(Chl-a) concentration, catch per unit effort(CPUE), biodiversity, species composition, body length and weight of total catch in Daya Bay before SFM(May 2015) and after SFM(August 2015) were comparatively analyzed. [Result] The CPUE of total catch mainly distributed from 0-10 kg/h before SFM to 0-40 kg/h after SFM. The average body length and weight of catches increased, indicating that the growth rate of catches was accelerated. The indices of Shannon-Wiener diversity index(H′) and Pielou evenness index(J′) increased by 0.36 and 0.14, respectively, indicating that the community structure was improved. The biomass spectra of fishery resources community suggested that the slopes of normalized biomass spectra after SFM was greater than -1, and the biomass of fishery resources increased with the increase of individual body weight after SFM. SFM reduced offshore fishing intensity,recovered and conserved the fishery resources in Daya Bay. [Conclusion] In order to improve the SFM system and promote the sustainable development of coastal fishery resources, it is suggested to prolong the time of SFM appropriately, reduce the number of coastal fishing boats, and strength-en the conservation of fish resources. | yu jing hu qiwei chen pimao mang qi | 2018 | Animal Husbandry and Feed Science2018，10，4： | 0 |
| 18 | An optimization of ultra-sonication-assisted extraction from flowers of Apocynum venetum in targeting to amount of free amino acids determined by UPLC-MS/MS显示文摘Amino acids are naturally occurring compounds in many edible or medicinal plants,which possess a variety of nutraceutical effects in human.Here,a method of ultrasound-assisted extraction was optimized using Box-Behnken design of response surface methodology in maximizing the yield of free amino acids deriving from flowers of Apocynum venetum L.Under the optimal condition of ultrasound-assisted extraction,i.e.187.5 W of ultrasonic power,31.93 min of extraction time,and 0.47 mg/ml of solid-liquid ratio,the experimental yield of extractive was 287.17±0.205 mg/g,which was in close agreement with the value,as predicted by the established model.In addition,a hydrophilic interaction ultra-high performance liquid chromatography coupled with QqQ-MS/MS method was developed and validated for simultaneous quantification of 20 types of amino acids without derivatization contained in A.venetum flowers.The analytical method was validated by matrix effect,linearity,limit of detection,limit of quantification,precision,repeatability,stability,and recovery.The analysis results showed that A.venetum flower was rich in free amino acids of~3%of total dried weight,and which contained leucine(13.7 g/mg),isoleucine(7.9 g/mg),and lysine(2.2 g/mg)as the most abundant amino acids.Thus,A.venetum flower could provide beneficial nutrient values for human health,e.g.adult weight maintenance or glucose homeostasis. | Yan Jin Caroline Yang Wang Weihui Hu Yun Huang Miranda Li Xu Huaiyou Wang Xiangpeng Kong Yicun Chen Tina Tingxia Dong Qiwei Qin Karl Wah Keung Tsim | 2019 | Food Quality and Safety2019，3，1： | 0 |
| 19 | Condition-based Maintenance Optimization for Gamma Deteriorating Systems under Performance-based Contracting显示文摘With the further development of service-oriented,performance-based contracting(PBC)has been widely adopted in industry and manufacturing.However,maintenance optimization problems under PBC have not received enough attention.To further extend the scope of PBC’s application in the field of maintenance optimization,we investigate the condition-based maintenance(CBM)optimization for gamma deteriorating systems under PBC.Considering the repairable single-component system subject to the gamma degradation process,this paper proposes a CBM optimization model to maximize the profit and improve system performance at a relatively low cost under PBC.In the proposed CBM model,the first inspection interval has been considered in order to reduce the inspection frequency and the cost rate.Then,a particle swarm algorithm(PSO)and related solution procedure are presented to solve the multiple decision variables in our proposed model.In the end,a numerical example is provided so as to demonstrate the superiority of the presented model.By comparing the proposed policy with the conventional ones,the superiority of our proposed policy is proved,which can bring more profits to providers and improve performance.Sensitivity analysis is conducted in order to research the effect of corrective maintenance cost and time required for corrective maintenance on optimization policy.A comparative study is given to illustrate the necessity of distinguishing the first inspection interval or not. | Xi Zhu Liang Wen Juan Li Mingchang Song Qiwei Hu | 2023 | Chinese Journal of Mechanical Engineering2023，36，1： | 0 |
| 20 | Asyncflow: A visual programming tool for game artificial intelligence显示文摘Visual programming tools are widely applied in the game industry to assist game designers in developing game artificial intelligence(game AI)and gameplay.However,testing multiple game engines is a time-consuming operation,which degrades development efficiency.To provide an asynchronous platform for game designers,this paper introduces Asyncflow,an open-source visual programming solution.It consists of a flowchart maker for game logic explanation and a runtime framework integrating an asynchronous mechanism based on an event-driven architecture.Asyncflow supports multiple programming languages and can be easily embedded in various game engines to run flowcharts created by game designers.©2021 The Authors. | Zhipeng Hu Changjie Fan Qiwei Zheng Wei Wu Bai Liu | 2021 | Visual Informatics2021，5，4： | 0 |
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