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| 1 | An efficient method for privacy preserving location queries显示文摘最近,保存地点询问的隐私的问题吸引了许多研究。然而,有很少工作,集中于在地点隐私保藏和地点质问信息收集之间的折衷。处理这种折衷,我们建议坚持的隐私地点质问(PLQ ) ,保存地点质问处理的有效隐私框架。没有揭示用户地点信息,这个框架能启用基于地点的质问。框架能也便于基于地点的服务供应商关于基于的地点收集一些信息查询,它在实践是有用的。也就是, PLQ 由三个关键部件组成在顾客方面,在服务器方面的隐私询问处理器,和连接顾客和服务器的另外的信任第三方的地点 anonymizer。地点 anonymizer 基于一个地图层次模糊用户地点进一个 cloaked 区域。地图层次包含根据真实地形被划分的精确区域。隐私质问处理器处理请求近邻居(NN ) 地点基于质问。多角形(CHP ) 的新凸的壳算法用一个多角形 cloaked 区域为近邻居的询问被建议。我们高效地,进程地点基于的算法罐头查询的试验性的结果表演。 | Yubao LIU Xiuwei CHEN Zhan LI Zhijie LI Raymond Chi-Wing WONG | 2012 | Frontiers of Computer Science2012，6，4： | 5 |
| 2 | Genomic characterizations of H4 subtype avian influenza viruses from live poultry markets in Sichuan province of China, 2014–2015显示文摘Dear Editor,Avian influenza viruses (AIVs) have posed a serious threat to poultry production and public health. To date, more than fourteen AIV subtypes that are able to infect human beings have been documented. Also, it is suggested that new subtypes may be reported in the future, owing to the migration of wild birds and live poultry transportation (Gao, 2018).Poultry may act as a potential incubator for novel subtypes of avian influenza virus (Bi et al., 2016a; Bi et al., 2016b; Liu et al., 2014a; Su et al., 2017). Up to date, the H7N9 AIV emerged in February 2013 has caused 1,567 human cases,with a fatality rate of 39.2%(http://gffzz36b398b81f8a4a4cho6wk5wvqqv6566xu.ffgz.tsg.suse.edu.cn/influenza/ | Chuansong Quan Ting Huang Xiuwei Chen Jie Zhang Qianli Wang Cheng Zhang Tiyan Zhang Lijun Zhou Liumei Shu Chunrong Long Lei Yang Xunbo Du Yingze Zhao Peipei Liu Hao Song Weifeng Shi Yuhai Bi Qiang Lv William J.Liu George F.Gao | 2018 | Science China(Life Sciences)2018，61，9： | 4 |
| 3 | Source-to-sink of Late carboniferous Ordos Basin: Constraints on crustal accretion margins converting to orogenic belts bounding the North China Block显示文摘The Upper Carboniferous Benxi Formation of the Ordos Basin is the lowest strata overlying Middle Ordovician above the major ca.150-Myr sedimentary gap that characterizes the entire North China Block(NCB).We apply an integrated analysis of stratigraphy,petrography,and U-Pb dates and Hf isotopes on detrital zircons to investigate its provenance and relationships to the progressive collisions that formed the Xing’an-Mongolia Orogenic Belt to the north and the Qinling Orogenic Belt to the south.The results show that,in addition to regional patterns of siliciclastic influx from these new uplifted sources,the Benxi Formation is composed of two sequences corresponding to long-term glacial-interglacial cycles during the Moscovian to lower Gzhelian stages which drove global changes of eustatic sea level and weathering.The spatio-temporal distribution of sediment isopachs and facies indicate there were two sediment-infilling pulses,during which the southern and the northern Ordos Basin developed tidal-reworked deltas.The age spectra from detrital zircons,trace element patterns and εNd(t)values reveal that the siliciclastics forming the southern delta was sourced in the Qinling Orogenic Belt,whereas the northern delta was derived from the Xing’an-Mongolia Orogenic Belt.The source-to-sink evolution of this Upper Paleozoic system records the progressive development of orogenic belts and uplifts forming on the southern and northern margins of the NCB prior to its collisions with the South China and the Siberian plates,respectively. | Anqing Chen Hao Zou James G.Ogg Shuai Yang Mingcai Hou Xiuwei Jiang Shenglin Xu Xiaoxing Zhang | 2020 | Geoscience Frontiers2020，11，6： | 3 |
| 4 | NOx Emission Reduction Technology for Marine Engine Based on Tier-Ⅲ:A Review显示文摘The development of maritime trade has greatly promoted the development of diesel engines.However,with the increasingly serious environmental problems,more and more attention has been paid to the exhaust emissions of high-power marine diesel engines.The restrictions on SOx have been implemented globally,and the limitation of the NO,will be the next priority.This paper illustrates(a)Principle and research progress of NOx emissions-reduction technology of marine diesel engine;(b)Summary of advantages and disadvantages among various reduction technologies and their reduction effects;(c)The application effect of mainstream technology on board.Firstly,since exhaust gas recirculation(EGR)can achieve Tier-Ⅲ directly from Tier-Ⅰ without considering the increased fuel consumption.It is deemed as the most promising technology to reduce emissions by controlling combustion condition.However,EGR has shortcomings of excessive increase in ftiel consumption and generation of waste water,which need to be solved immediately.Secondly,selective catalytic reduction(SCR)is the most effective and straightforward means to achieve Tier-Ⅲ.Despite of the continuous optimization of SCR unit volume,the problem of scrap catalyst seriously limits its wide application.How to match the supercharger more efficiently is a key factor in choosing between high and low pressure SCR.Thirdly,nature gas(NG)engines are capable of achieving a reduction in NOx,but in order to meet the requirements of Tier-Ⅲ,it still needs to be assisted by other technologies.The emissions of hydrocarbon(HC)and CO in NG engines are huge defects that must be solved.Lastly,technologies such as the Miller cycle,Two-stage supercharging and mixed-water combustion can also reduce emissions but were rarely used alone.These technologies can be combined with EGR,SCR and NG engines to optimize the enginesJ economy and emission characteristics. | LU Xiuwei GENG Peng CHEN Yunyue | 2020 | Journal of Thermal Science2020，29，5： | 2 |
| 5 | The impact of UV treatment on microbial control and DBPs formation in full-scale drinking water systems in northern China显示文摘To manage potential microbial risks and meet increasingly strict drinking water health standards,UV treatment has attracted increasing attention for use in drinking water systems in China.However,the effects of UV treatment on microbial control and disinfection byproducts(DBPs)formation in real municipal drinking water systems are poorly understood.Here,we collected water samples from three real drinking water systems in Beijing and Tianjin to investigate the impacts of UV treatment on microbial control and DBP formation.We employed heterotrophic plate count(HPC),flow cytometry(FCM),quantitative PCR analysis,and high-throughput sequencing to measure microorganisms in the samples.Different trends were observed between HPC and total cell count(measured by FCM),indicating that a single indicator could not reflect the real degree of biological re-growth in drinking water distribution systems(DWDSs).A significant increase in the 16S rRNA gene concentration was observed when the UV system was stopped.Besides,the bacterial community composition was similar at the phylum level but differed markedly at the genera level among the three DWDSs.Some chlorine-resistant bacteria,including potential pathogens(e.g.,Acinetobacter)showed a high relative abundance when the UV system was turned off.It can be concluded that UV treatment can mitigate microbial re-growth to some extent.Finally,UV treatment had a limited influence on the formation of DBPs,including trihalomethanes,haloacetic acids,and nitrogenated DBPs.The findings of this study may help to understand the performance of UV treatment in real drinking water systems. | Xiuwei Ao Zhongyun Chen Simiao Li Chen Li Zedong Lu Wenjun Sun | 2020 | Journal of Environmental Sciences2020，32，1： | 2 |
| 6 | The Long-Term Efficacy of Neoadjuvant Chemotherapy Followed by Radical Hysterectomy Compared With Radical Surgery Alone or Concurrent Chemoradiotherapy on Locally Advanced-Stage Cervical Cancer显示文摘 | Mingzhu Yin Falin Zhao Ge Lou Haiyu Zhang Meng Sun Cong Li Yan Hou Xia Li Fanling Meng Xiuwei Chen | 2011 | International Journal of Gynecological Cancer2011，，1： | 1 |
| 7 | Dibenzoey-elooctadiene Lignans fromK, heteroelita显示文摘 | Chen Daofeng Xu Guojun Yong Xiuwei | 1992 | Phytoehemistry1992，31，2： | 1 |
| 8 | The toxicity and long‐term efficacy of nedaplatin and paclitaxel treatment as neoadjuvant chemotherapy for locally advanced cervical cancer显示文摘 | Mingzhu Yin Haiyu Zhang Huiyan Li Xia Li Yunduo Liu Xiuwei Chen Ge Lou Kang Li | 2012 | Oncol2012，，2： | 1 |
| 9 | AUXIN RESPONSE FACTOR 3 integrates the functions of AGAMOUS and APETALA 2 in floral meristem determinacy显示文摘 | Xigang Liu Thanh Theresa Dinh Dongming Li Bihai Shi Yongpeng Li Xiuwei Cao Lin Guo Yanyun Pan Yuling Jiao Xuemei Chen | 2014 | Plant J2014，，4： | 1 |
| 10 | PLANT DENSITY,IRRIGATION AND NITROGEN MANAGEMENT:THREE MAJOR PRACTICES IN CLOSING YIELD GAPS FOR AGRICULTURAL SUSTAINABILITY IN NORTH-WEST CHINA显示文摘Agriculture faces the dual challenges of food security and environmental sustainability.Here,we investigate current maize production at the field scale,analyze the yield gaps and impacting factors,and recommend measures for sustainably closing yield gaps.An experiment was conducted on a 3.9-ha maize seed production field in arid north-west China,managed with border and drip irrigation,respectively,in 2015 and 2016.The relative yield reached 70%in both years.However,drip irrigation saved 227 mm irrigation water during a drier growing season compared with traditional border irrigation,accounting for 44%of the maize evapotranspiration(ET).Yield variability under drip irrigation was12.1%,lower than the 18.8%under border irrigation.Boundary line analysis indicates that a relative yield increase of 8%to 10%might be obtained by optimizing the yield-limiting factors.Plant density and soil available water content and available nitrogen were the three major factors involved.In conclusion,closing yield gaps with agricultural sustainability may be realized by optimizing agronomic,irrigation and fertilizer management,using water-saving irrigation methods and using site-specific management. | Xiuwei GUO Manoj Kumar SHUKLA Di WU Shichao CHEN Donghao LI Taisheng DU | 2021 | Frontiers of Agricultural Science and Engineering2021，8，4： | 0 |
| 11 | LINKING CROP WATER PRODUCTIVITY TO SOIL PHYSICAL,CHEMICAL AND MICROBIAL PROPERTIES显示文摘Agriculture uses a large proportion of global and regional water resources.Due to the rapid increase of population in the world,the increasing competition for water resources has led to an urgent need in increasing crop water productivity for agricultural sustainability.As the medium for crop growth,soils and their properties are important in affecting crop water productivity.This review examines the effects of soil physical,chemical,and microbial properties on crop water productivity and the quantitative relationships between them.A comprehensive view of these relationships may provide important insights for soil and water management in arable land for agriculture in the future. | Di WU Allan AANDALES Hui YANG Qing SUN Shichao CHEN Xiuwei GUO Donghao LI Taisheng DU | 2021 | Frontiers of Agricultural Science and Engineering2021，8，4： | 0 |
| 12 | A NSZT Method for Frequency Estimation and Anti-noise Performance Analysis显示文摘Among all the frequency estimation algorithm, the spectrum zooming method has superiority for high resolution and excellent anti-noise performance,but it needs more computational resource. The typical spectrum zooming methods include Zoom fast Fourier transform(ZFFT), Chirp-Z transform(CZT) and zeropadding, which are all uniform spectrum zooming methods. A Nonuniform spectrum zooming transform(NSZT)method with higher accuracy, better anti-noise ability and higher efficiency is presented. To verify the proposed method, the Monte-Carlo simulations are performed. Results are presented and compared with the Cramer-Rao bound(CRB) method, showing that the proposed algorithm has the least Mean square error(MSE) among these algorithms. This NSZT method is used in a 24 GHz Frequency modulated continuous wave(FMCW) radar system and an experiment for the real-time ranging is conducted.The experimental results show that the ranging error of the radar system is about 5 mm in 10 m, which verifies the feasibility of our proposed method. | ZHANG Wenxin LIU Xiaojun CHEN Xiuwei LIU Qing FANG Guangyou | 2018 | Chinese Journal of Electronics2018，27，3： | 0 |
| 13 | Quantitative analysis of irrigation water productivity in the middle reaches of Heihe River Basin, Northwest China显示文摘With the growing shortage of surface water resources,it is of great significance for improving the irrigation water productivity(IWP)to ensure the water and food security.The contribution of the driving factors of the IWP and the rational regulation of the input factors of agricultural production is required.In this paper,118 and 80 sampling points were selected in Pingchuan and Liaoquan irrigation districts(PLID,the spacing of sampling point is approximately 1 km)and the middle reaches of the Heihe River basin(MHRB,the spacing of sampling point is approximately 10 km),respectively.Soil characteristics and management measures near the sampling points were obtained.Results showed that the average value of the IWP in MHRB was 1.67 kg/m3,with a moderate heterogeneity in the space.The main driving factors of IWP were irrigation,fertilization and planting density.On the PLID,the contribution rates of soil factors and management measures to IWP were 20.6%and 35.2%,respectively,and the contribution of soil factors to IWP increased to 43.8%in the MHRB,while the contribution rate of management measures decreased to 24.8%.It shows that in a small irrigation districts,from the perspective of farmers,the improvement of IWP should be mainly controlled by management measures,while in the large area of watershed scale,the spatial differences in soil factors also need to be considered by the government management departments,when they want to increase IWP through regulating management measures. | Donghao Li Taisheng Du Yue Cao Manoj Kumar Shukla Di Wu Xiuwei Guo Shichao Chen | 2019 | International Journal of Agricultural and Biological Engineering2019，12，5： | 0 |
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