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| 1 | Accountable authority key policy attribute-based encryption显示文摘We present an accountable authority key policy attribute-based encryption (A-KPABE) scheme.In this paper,we extend Goyal's work to key policy attribute-based encryption setting.We first generalize the notion of accountable authority in key policy attribute-based encryption scenario,and then give a construction.In addition,our scheme is shown to be secure in the standard model under the modified Bilinear Decisional Diffie-Hellman (mBDDH) assumption. | WANG YongTao CHEN KeFei LONG Yu LIU ZhaoHui | 2012 | Science China(Information Sciences)2012，55，7： | 6 |
| 2 | The sorption mechanisms of Th(Ⅳ) on attapulgite显示文摘The surface properties of intrinsic and activated attapulgite were studied using potentiometric titration.The sorption mechanisms of Th(IV) on intrinsic and activated attapulgite were investigated by employing surface complexation model and FITEQL 3.2 code.The results indicated that the sorption sites of intrinsic attapulgite involved in the sorption process were main ion exchange site(≡ XNa/K),strong site(≡ SsOH) and weak site(≡ SwOH),while only strong site(≡ SsOH) and weak site(≡ SwOH) were predominant for activated attapulgite.At pH < 2.5,the species of Th(IV) was main Th4+ in aqueous solution;then the hydrolysis species of Th(IV)(i.e.,Th(OH)22+,Th(OH)+3 and Th(OH)04) gradually formed as pH increasing.For the sorption of Th(IV) on intrinsic attapulgite,both ion exchange species(≡ X2Th) and inner-sphere surface complexes(≡ SsOTh) were dominant,while only inner-sphere surface complexes(i.e.,≡ SsOThOH and ≡ SwOTh) were observed for Th(IV) sorption to activated attapulgite.In the presence of humic acid(HA),the sorption of Th(IV) on activated attapulgite was obviously enhanced;and both ≡ SsOH-HA-Th and ≡ SsOTh were the predominant speciation.It was also interesting to find that the addition of HA obviously provoked the desorption behavior of Th(IV). | PAN DuoQiang FAN QiaoHui DING KeFei LI Ping LU Yan YU Tao XU Jiang WU WangSuo | 2011 | Science China Chemistry2011，54，7： | 6 |
| 3 | An efficient pairing-free certificateless signature scheme for resource-limited systems显示文摘Appendix A Introduction With the development of computation and communication,resource-limited systems have been quite widespread,such as wireless sensor networks(WSNs)[1,2],PDAs,cell phones and smartcards.However,these systems cannot execute | Liangliang Wang Kefei Chen Yu Long Huige Wang | 2017 | Science China(Information Sciences)2017，60，11： | 3 |
| 4 | Identity-based threshold key-insulated signature显示文摘 | Chen Jianhong Chen Kefei Long Yu | 2012 | High Technology Letters2012，18，3： | 3 |
| 5 | AID function in somatic hypermutation and class switch recombination显示文摘Activation-induced cytidine deaminase (AID) initiates somatic hypermutation of immunoglobulin (Ig) gene variable regions and class switch recombination (CSR) of Ig heavy chain constant regions. Two decades of intensive research has greatly expanded our knowledge of how AID functions in peripheral B cells to optimize antibody responses against infections, while maintaining tight regulation of AID to restrain its activity to protect B cell genomic integrity. The many exciting recent advances in the field include: 1) the first description of AID’s molecular structure, 2) remarkable advances in high throughput approaches that precisely track AID targeting genome-wide, and 3) the discovery that the cohesion-mediate loop extrusion mechanism [initially discovered in V(D)J recombination studies] also governs AID-medicated CSR. These advances have significantly advanced our understanding of AID’s biochemical properties in vitro and AID’s function and regulation in vivo. This mini review will discuss these recent discoveries and outline the challenges and questions that remain to be addressed. | Kefei Yu | 2022 | Acta Biochimica et Biophysica Sinica2022，54，6： | 1 |
| 6 | A dynamic threshold commercial key escrow scheme based on conic显示文摘 | LONG YU CAO XHENFU CHEN KEFEI | | 0，，02： | 1 |
| 7 | Polybenzimidazole containing ether units as electrolyte for high temperature proton exchange membrane fuel cells显示文摘 | Yu Kang Jing Zou Zhaonan Sun Fanghui Wang Hong Zhu Kefei Han Wensheng Yang Huaihe Song Qinghan Meng | 2013 | International Journal of Hydrogen Energy2013，，15： | 1 |
| 8 | Towards accountable authority attribute-based encryption显示文摘An accountable authority attribute-based encryption(A-ABE)scheme is presented in this paper.The notion of accountable authority identity-based encryption(A-IBE)was first introduced by Goyal at Crypto'07.It is a novel approach to mitigate the(inherent)key escrow problem in identity-based cryptosystems.In this work,the concept of accountable authority to attribute-based encryption(ABE)setting is generalized for the first time,and then a construction is given.The scheme non-trivially integrates an A-IBE scheme proposed by Libert et al.with an ABE scheme.In our construction,a user will be identified by a pair(id,ω),where id denotes the user's identity andωdenotes the set of attributes associated to the user.In addition,our construction is shown to be secure under some reasonable assumptions. | 王永涛 Chen Kefei Long Yu | 2013 | High Technology Letters2013，19，1： | 1 |
| 9 | Wide-field aurora imager onboard Fengyun satellite:Data products and validation显示文摘New observations of auroras based on the wide-field aurora imager(WAI)onboard Fengyun-3D(FY-3D)satellite are exhibited in this paper.Validity of the WAI data is analyzed by comparing auroral boundaries derived from WAI observations with results obtained from data collected by the Special Sensor Ultraviolet Spectrographic Imager(SSUSI)aboard the Defense Meteorological Satellite Program(DMSP F18).Dynamic variations of the aurora with the solar wind,interplanetary magnetic field(IMF)parameters,and the SYM-H index are also investigated.The comparison of auroral boundaries indicates that the WAI data are morphologically valid and suitable to the study of auroral dynamics.Effective responses to solar wind parameters indicate that the WAI data can be useful to monitor and predict the Earth’s space weather.Since the configuration of aurora is a good indicator of the solar wind–magnetosphere–ionosphere(SW-M-I)coupling system,and can reflect the disturbance of the space environment,the WAI will provide important data to help us to study the physical processes in space. | GuangXing Ding JiaWei Li XiaoXin Zhang Fei He LingPing He KeFei Song Liang Sun Shuang Dai ShiJie Liu Bo Chen Chao Yu XiuQing Hu SongYan Gu ZhongDong Yang Peng Zhang | 2021 | Earth and Planetary Physics2021，5，1： | 1 |
| 10 | Non-escaping frost tolerant QTL linked genetic loci at reproductive stage in six wheat DH populations显示文摘Reproductive stage frost poses a major constraint for wheat production in countries such as Australia.However,little progress has been made in identifying key genes to overcome the constraint.In the present study,a severe frost event hit two large-scale field trials consisting of six doubled haploid(DH)wheat populations at reproductive stage(young microspore stage)in Western Australia,leading to the identification of 30 robust frost QTL on 17 chromosomes.The major 18 QTL with the phenotype variation over 9.5%were located on 13 chromosomes including 2 A,2 B,2 D,3 A,4 A,4 B,4 D,5 A,5 D,6 D,7 A,7 B and7 D.Most frost QTL were closely linked to the QTL of anthesis,maturity,Zadok stages as well as linked to anthesis related genes.Out of those,six QTL were repetitively detected on the homologous regions on 2 B,4 B,4 D,5 A,5 D,7 A in more than two populations.Results showed that the frost damage is associated with alleles of Vrn-A1 a,Vrn-D1 a,Rht-B1 b,Rht-D1 b,and the high copy number of Ppd-B1.However,anthesis QTL and anthesis related genes of Vrn-B1 a and Ta FT3-1 B on chromosomes 5 B and 1 B did not lead to frost damage,indicating that these early-flowering phenotype related genes are compatible with frost tolerance and thus can be utilised in breeding.Our results also indicate that wild-type alleles Rht-B1 a and Rht-D1 a can be used when breeding for frost-tolerant varieties without delaying flowering time. | Jingjuan Zhang MD Shahidul Islam Yun Zhao Masood Anwar Zaid Alhabbar Maoyun She Rongchang Yang Angela Juhasz Guixiang Tang Jiansheng Chen Hang Liu Yanjie Jiang Shengnan Zhai Xin Hu Junkang Rong Yingquan Zhang Yebo Qin Qier Liu Zitong Yu Yujuan Zhang Sadegh Balotf Mirza Dowla Sonia Afrin Nandita Roy Md Resad Mallik Md Atik Us Saieed Shanjida Rahman Nigarin Sultana Sarah Al-Sheikh Ahmed Chris Florides Kefei Chen Darshan Sharma Nathan Height Ben Biddulph Meiqin Lu Jorge EMayer Wujun Ma | 2022 | The Crop Journal2022，10，1： | 0 |
| 11 | A Study of Location Plan of Public Parking Lots (Garages) for Motor Vehicles in CBD of Shanghai Municipality | Yan Kefei, Gu Zuchao, Zhang Yan* *Shanghai Urban Construction Institute Shanghai Urban Planning and Design Institute Yu Qingkang | 1992 | China City Planning Review1992，9，3： | 0 |
| 12 | Sugarcane bagasse amendment improves the quality of green waste vermicompost and the growth of Eisenia fetida显示文摘Vermicomposting is a feasible method for disposing of lignocellulosic waste while generating a useful product.The current study assessed the potential of vermicomposting green waste mixed with sugarcane bagasse in proportions of 25%,50%,and 75%(v:v,based on dry weight).The suitability was evaluated based on the agrochemical properties,earthworm biomass,and phytotoxicity.The final vermicomposts exhibited near-neutral pH values(7.1-7.6),and lower EC values(0.43-0.72 mS/cm)and C:N ratios(14.1-19.9).The content of available nutrients and CEC for all the vermicomposts exceeded those of the control compost(without earthworms).For vermicomposts,the average values of NO3-N,AP,AK,and CEC were 53,517,1362 mg/kg,and 158 cmol/kg,respectively.The total contents of heavy metals increased in all vermicompost treatments compared to control composts with the following average final percentages:Zn(2.0%),Cr(15.5%),Pb(23.4%),and Cu(44.3%),but these amounts were safe for application in agroforestry.The addition of sugarcane bagasse to green waste significantly increased the content of total humic substance,humic acid and urease activity,acid and alkaline phosphatase activity,and Eisenia fetida reproduction.The addition of 25%sugarcane bagasse to green waste decreased the toxicity to germinating seeds.These results revealed that vermicomposting is a feasible way to degrade green waste into a value-added chemical product. | Linlin Cai Xiangyang Sun Dan Hao Suyan Li Xiaoqiang Gong Hao Ding Kefei Yu | 2020 | Frontiers of Environmental Science & Engineering2020，14，4： | 0 |
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