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| 1 | New eolian red clay sequence on the western Chinese Loess Plateau linked to onset of Asian desertification about 25 Ma ago显示文摘The expansion of inland Asia deserts has considerably influenced the environmental, social and economic activities in Asia. Aridification of inland Asia, especially timing of the initiation of Asian desertification, is a contentious topic in paleoclimatology. Late Cenozoic eolian loess-red clay sequences on the Chinese Loess Plateau, which possess abundant paleoclimatic and paleo-environmental information, can be regarded as an indicator of inland Asia desertification. Here we present a detailed magnetostratigraphic investigation of a new red clay sequence about 654 m in Zhuanglang located at the western Chinese Loess Plateau. Sedimentological, geochemical, mineralogical, and quartz morphological lines of evidence show that the red clay is of eolian origin. Magnetostratigraphic correlations indicate that this core sequence spans from 25.6 to 4.8 Ma, and typical eolian red clay appears as early as 25 Ma. This extends the lower limit of the red clay on the Chinese Loess Plateau from the previously thought early Miocene back into the late Oligocene. This new red clay record further implies that the inland Asia desertification was initiated at least by the late Oligocene. This sequence provides a unique high-resolution geological record for understanding the inland Asia desertification process since the late Oligocene. | QIANG XiaoKe AN ZhiSheng SONG YouGui CHANG Hong SUN YouBin LIU WeiGuo AO Hong DONG JiBao FU ChaoFeng WU Feng LU FengYan CAI YanJun ZHOU WeiJian CAO JunJi XU XinWen AI Li | 2011 | Science China Earth Sciences2011,54,1: | 73 |
| 2 | Seasonal variations and sources of mass and chemical composition for PM_(10) aerosol in Hangzhou,China显示文摘Aerosol observation was conducted for four seasons from September 2001 to August 2002 at five sampling sites in Hangzhou, South China, on PM10 mass, 22 elements (Na, Mg, Al, Si, P, S, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Br, Cd, Ba, and Pb), 5 major ions (F-, Cl-, NO3-, SO42-, and NH4+), and organic and elemental carbon (OC and EC), showing that PM10 mass ranged from 46.7 to 270.8 g/m3, with an annual average of 119.2 g/m3. Na, Al, Si, S, K, Ca, and Fe were the most abundant elements in PM10, most of S being in the form of SO42-. SO42-, NO3-, and NH4+ were the major ions, which contributed to about 20% of the PM10 mass. The mean seasonal concentrations for SO42-, averaged over all sites, were found to be 18.0, 18.5, 24.7, and 21.4 g/m3, for spring, summer, autumn, and winter, respectively, while the corresponding loadings for NO3- were 7.2, 4.7, 7.1, and 11.2 g/m3, and for NH4+ were 6.0, 5.9, 8.2, and 9.3 g/m3, in the form mostly of NH4NO3 in spring, autumn, and winter, and mostly of (NH4)2SO4 in summer. The low NO3-/SO42-ratio found indicates coal combustion as the major source throughout the year. The mean annual concentrations of OC and EC in PM10 were found to be 21.4, and 4.1 g/m3, respectively. Material balance calculation indicated that fugitive dust, the secondary aerosol, and carbonaceous matter were the most abundant species in PM10 for the four seasons, as is characteristic for cities in South China. | Junji Cao Zhenxing Shen Judith C. Chow Guowei Qi John G. Watson | 2009 | Particuology2009,7,3: | 58 |
| 3 | Evolution of planetary boundary layer under different weather conditions,and its impact on aerosol concentrations显示文摘一个领域实验在天津被进行,从 2010 年 9 月 930 日的中国,在表面空气污染物质上集中了于行星的边界层(PBL ) 和它的影响的进化。实验使用了三台遥感仪器,风侧面雷达( WPR ),微波辐射计( MWR )和微脉搏的激光雷达( MPL ),到检测风,温度,和喷雾器 backscattering 系数并且到的垂直侧面测量表面污染物质的垂直侧面(喷雾器,公司, SO2 , NOx ),并且也从 255-m 收集了声音的风速表数据气象学的塔。把大小基于这些, PBL 的进化被估计。平均 PBL 高度在夜间期间在 noon/afternoon-time,和 200300 m 期间是大约 10001300 m。PBL 高度和喷雾器集中是相关反的在期间清楚并且薄雾条件。当平均喷雾器集中分别地是在薄雾和晴朗天空条件下面的 52 和 17 g/m3 时,平均最大的 PBL 高度是 1.08 和 1.70 km。太阳的放射上的喷雾器和云的影响基于从 255-m 收集的声音的风速表数据被观察气象学的塔。当 PBL 的镇压结构进一步削弱了污染物质的散开时,热流动被发现被薄雾(重污染) 或云显著地减少了,它趋于压抑 PBL 的发展,导致重污染。这个可能的积极反馈周期(更多的喷雾器降低 PBL 高度更多的喷雾器) 将在大城市为重地面污染导致一个加速过程。 | Jiannong Quan Yang Gao Qiang Zhang Xuexi Tie Junji Cao Suqin Han Junwang Meng Pengfei Chen Delong Zhao | 2013 | Particuology2013,11,1: | 51 |
| 4 | Biological and clinical aspects of HPV-related cancers显示文摘Cancer-related diseases represent the second overall cause of death worldwide.Human papilloma virus(HPV)is an infectious agent which is mainly sexually transmitted and may lead to HPV-associated cancers in both men and women.Almost all cervical cancers are HPV-associated,however,an increasing number of head and neck cancers(HNCs),especially oropharyngeal cancer,can be linked to HPV infection.Moreover,anogenital cancers,including vaginal,vulvar,penial,and anal cancers,represent a subset of HPVrelated cancers.Whereas testing and prevention of cervical cancer have significantly improved over past decades,anogenital cancers remain more difficult to confirm.Current clinical trials including patients with HPV-related cancers focus on finding proper testing for all HPV-associated cancers as well as improve the currently applied treatments.The HPV viral oncoproteins,E6 and E7,lead to degradation of,respectively,p53 and pRb resulting in entering the S phase without G1 arrest.These high-risk HPV viral oncogenes alter numerous cellular processes,including DNA repair,angiogenesis,and/or apoptosis,which eventually result in carcinogenesis.Additionally,a comprehensive analysis of gene expression and alteration among a panel of DNA double strand breaks(DSB)repair genes in HPV-negative and HPV-positive HNC cancers reveals differences pointing to HPV-dependent modifications of DNA repair processes in these cancers.In this review,we discuss the current knowledge regarding HPV-related cancers,current screening,and treatment options as well as DNA damage response-related biological aspects of the HPV infection and clinical trials. | Klaudia Anna Szymonowicz Junjie Chen | 2020 | Cancer Biology & Medicine2020,17,4: | 54 |
| 5 | Expression of vascular endothelial growth factor C and chemokine receptor CCR7 in gastric carcinoma and their values in predicting lymph node metastasis显示文摘AIM:To study the expression of vascular endothelial growth factor C (VEGF-C) and chemokine receptor CCR7 in gastric carcinoma and to investigate their associations with lymph node metastasis of gastric carcinoma and their values in predicting lymph node metastasis.METHODS:The expression of VEGF-C and CCR7 in gastric carcinoma tissues obtained from 118 patients who underwent curative gastrectomy was examined by immunohistochemisty.Among these patients,39 patients underwent multi-slice spiral CT (MSCT) examination.RESULTS:VEGF-C and CCR7 were positively expressed in 52.5 and 53.4% of patients. VEGF-C expression was more frequently found in tumors with lymph node metastasis than those without it (P<0.001).VEGF-C expression was also closely related to lymphatic invasion (P<0.001), vascular invasion (P<0.01),and TNM stage (P<0.001). However,there was no significant correlation between VEGF-C expression and age at surgery, gender, tumor size, tumor location,Lauren classification,and depth of invasion. CCR7 expression was significantly higher in patients with lymph node metastasis compared with those without lymph node metastasis (P<0.001) and was also associated with tumorsize (P<0.01), depth of invasion (P<0.001), lymphatic invasion (P<0.001),and TNM stage (P<0.001).However,the presence of CCR7 had no correlation to age at surgery,gender, tumor location, Lauren classification,and vascular invasion. Among the 39 patients who underwent MSCT examination,only CCR7 expression was related to lymph node metastasis determined by MSCT (P<0.05).In the current retrospective study,the sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of VEGF-C and CCR7 expression in the diagnosis of lymph node metastasis for patients with gastric carcinoma were 73.8%, 70.2%,72.6%,71.4% and 72.0%,and 82.0%,77.2%,79.4%,80.0% and 79.7%,respectively.After subdivision according to the combination of VEGF-C and CCR7 expression, receiver operating characteristic (ROC) analysis showed that the accuracy of the combined examination of VEGF-C and CCR7 expression in predicting lymph node metastasis was relatively high (area under ROC curve [Az]=0.83).CONCLUSION:The expression of VEGF-C and CCR7 is related to lymph node metastasis of gastric carcinoma and both of them may become new targets for the treatment of gastric carcinoma.Furthermore,the combined examination of VEGF-C and CCR7 expression in endoscopic biopsy specimens may be useful in predicting lymph node metastasis of gastric carcinoma and deciding the extent of surgical lymph node resection. | ChaoYan Zheng-GangZhu Ying-YanYu JunJi YiZhang Yu-BaoJi MinYan JunChen Bing-YaLin | 2004 | World Journal of Gastroenterology2004,10,6: | 54 |
| 6 | Aerosol pollution in China:Present and future impact on environment显示文摘With its dense population, rapid economic growth and dramatic rate of urbanization, China is experiencing extreme air pollution problems. This is particularly the case in Central-Eastern China (CEC), where the two major cities of Beijing and Tianjin are located, in the Yangtze-River Delta (YRD) with the city of Shanghai, and in the Pearl-River Delta (PRD) with the mega-city of Guangzhou. Space observations show that the atmospheric aerosol load in these three regions is considerably higher than, for example, in the urbanized regions of Europe and North America. The high aerosol concentrations in these regions have raised many environmental problems, such as impact on human health, visibility, and climate changes. In this paper, several crucial issues regarding aerosol pollution in these highly populated regions (CEC, YRD, and PRD) are discussed, including (1) when the aerosol load starts to rapidly increase in these regions; (2) how the high aerosol concentrations affects the environment; and (3) what the potential consequences are under possible low aerosol load in these regions. Discussion on these crucial issues might lead to some insight for better understanding of the characterizations of aerosol pollution due to the rapid economical development in China. | Xuexi Tie Junji Cao | 2009 | Particuology2009,7,6: | 48 |
| 7 | Effect of ginseng polysaccharides and dendritic cells on the balance of Th1/Th2 T helper cells in patients with non-small cell lung cancer显示文摘OBJECTIVE: To investigate the effect of thorascopic administration of ginseng polysaccharides(GPS)plus dendritic cells(DC) on T helper cell type 1/T helper cell type 2(Th1/Th2) balance in patients with non-small cell lung cancer(NSCLC).METHODS: A total of 96 NSCLC patients were divided evenly into two groups. The control group was treated with DCs alone and the treatment group was treated with DCs plus GPS. After DCs and GPS were administered thoracoscopically, once a week,4 times for 30 days, the patients' quality of life was measured with the Functional Assessment of Can-cer Treatment-Lung(FACT-L) questionnaire before and after treatment. Serum interferon-γ(INF-γ), interleukin-4(IL-4), IL-2 and IL-5 were examined before and after treatments.RESULTS: The level of Th1 cytokines(INF-γ, IL-2)and the ratio of Th1/Th2 cytokines(INF-γ/IL-4, IL-2/IL-5) increased in both treatment groups, while Th2cytokines(IL-4, IL-5) and FACT-L scores decreased(P<0.01). Furthermore, after treatment Th1 cytokines(INF-γ, IL-2) and the ratio of Th1/Th2 cytokines(INF-γ/IL-4, IL-2/IL-5) were higher in the DCs +GPS group than in the control group(P<0.05). Conversely, FACT-L scores and Th2 cytokines(IL-4, IL-5)were higher in the control group than in the DCs +GPS group(P<0.05).CONCLUSION: The treatment regime of DCs plus GPS had a greater effect on NSCLC patients' immune function as compared with DCs alone. This was evident by increased expression of Th1 cytokines(INF-γ, IL-2) and the ratio of Th1/Th2(INF-γ/IL-4, IL-2/IL-5), as well as by decreased FACT-L scores and the expression of Th2 cytokines(IL-4,IL-5). | Junjie Ma Huiping Liu Xiaolong Wang | 2014 | Journal of Traditional Chinese Medicine2014,34,6: | 41 |
| 8 | Lushan M_S7.0 earthquake:A blind reserve-fault event显示文摘In the epicenter of the Lushan MS7.0 earthquake there are several imbricate active reverse faults lying from northwest to southeast,namely the Gengda-Longdong,Yanjing-Wulong,Shuangshi-Dachuan and Dayi faults.Emergency field investigations have indicated that no apparent earthquake surface rupture zones were located along these active faults or their adjacent areas.Only brittle compressive ruptures in the cement-covered pavements can be seen in Shuangshi,Taiping,Longxing and Longmen Townships,and these ruptures show that a local crustal shortening occurred in the region during the earthquake.Combining spatial distribution of the relocated aftershocks and focal mechanism solutions,it is inferred that the Lushan earthquake is classified as a typical blind reverse-fault earthquake,and it is advised that the relevant departments should pay great attention to other historically un-ruptured segments along the Longmenshan thrust belt and throughout its adjacent areas. | XU XiWei WEN XueZe HAN ZhuJun CHEN GuiHua LI ChuanYou ZHENG WenJun ZHNAG ShiMin REN ZhiQun XU Chong TAN XiBin WEI ZhanYu WANG MingMing REN JunJie HE ZhongTai LIANG MingJian | 2013 | Chinese Science Bulletin2013,58,28: | 35 |
| 9 | Principles and construction of MSD adder in ternary optical computer显示文摘The two remarkable features of ternary values and a massive unit with thousands bits of parallel computation will make the ternary optical computer (TOC) with modified signed-digit (MSD) adder more powerful and e?cient than ever before for numerical calculations. Based on the decrease-radix design presented previously, a TOC can satisfy either a user requiring huge capacity for data calculations or one with a moderate amount of data, if it is equipped with a prepared adder. Furthermore, with the application of pipelined operations and the proposed data editing technique, the e?ciency of the prepared adder can be greatly improved, so that each calculated result can be obtained almost within one clock cycle. It is hopeful that by employing a MSD adder, users will be able to enter a new dimension with the creation of a new multiplier, new divider, as well as new matrix operator in a TOC in the near future. | JIN Yi SHEN YunFu PENG JunJie XU ShiYi DING GuangTai YUE DongJian YOU HaiHang | 2010 | Science China(Information Sciences)2010,53,11: | 26 |
| 10 | Antibacterial and angiogenic chitosan microneedle array patch for promoting wound healing显示文摘A patch with the capability of avoiding wound infection and promoting tissue remolding is of great value for wound healing.In this paper,we develop a biomass chitosan microneedle array(CSMNA)patch integrated with smart responsive drug delivery for promoting wound healing.Chitosan possesses many outstanding features such as the natural antibacterial property and has been widely utilized for wound healing.Besides,the microstructure of microneedles enables the effective delivery of loaded drugs into the target area and avoids the excessive adhesion between the skin and the patch.Also,vascular endothelial growth factor(VEGF)is encapsulated in the micropores of CSMNA by temperature sensitive hydrogel.Therefore,the smart release of the drugs can be controllably realized via the temperature rising induced by the inflammation response at the site of wounds.It is demonstrated that the biomass CSMNA patch can promote inflammatory inhibition,collagen deposition,angiogenesis,and tissue regeneration during the wound closure.Thus,this versatile CSMNA patch is potentially valuable for wound healing in clinical applications. | Junjie Chi Xiaoxuan Zhang Canwen Chen Changmin Shao Yuanjin Zhao Yongan Wang | 2020 | Bioactive Materials2020,5,2: | 25 |
| 11 | Recent progress in mass spectrometry proteomics for biomedical research显示文摘Proteins are the key players in many cellular processes. Their composition, trafficking, and interactions underlie the dynamic processes of life. Furthermore, diseases are frequently accompanied by malfunction of proteins at multiple levels. Understanding how biological processes are regulated at the protein level is critically important to understanding the molecular basis for diseases and often shed light on disease prevention, diagnosis, and treatment. With rapid advances in mass spectrometry(MS)instruments and experimental methodologies, MS-based proteomics has become a reliable and essential tool for elucidating biological processes at the protein level. Over the past decade, we have witnessed great expansion of knowledge of human diseases with the application of MS-based proteomic technologies, which has led to many exciting discoveries. Herein we review the recent progress in MS-based proteomics in biomedical research, including that in establishing disease-related proteomes and interactomes. We also discuss how this progress will benefit biomedical research and clinical diagnosis and treatment of disease. | Xu Li Wenqi Wang Junjie Chen | 2017 | Science China(Life Sciences)2017,60,10: | 24 |
| 12 | Principles,structures,and implementation of reconfigurable ternary optical processors显示文摘This paper discusses the principles,structures,and implementation procedures for reconfiguring a ternary optical processor (TOP).Typical structures,classifications,and naming of the TOP and basic operation units (BOUs) are described in this paper.The circuit implementations,commands,and processes for the reconfiguration are also discussed in detail.A simple analysis of the high performance and low power consumption of ternary optical computers is presented.Finally,an experiment is performed on reconfiguring a 1-bit BOU,which shows that the principles of reconfigurable TOPs are valid,and that the implementations and commands for the reconfiguration are effective. | JIN Yi WANG HongJian OUYANG shan ZHOU Yu SHEN YunPu PENG JunJie LIU XueMin | 2011 | Science China(Information Sciences)2011,54,11: | 23 |
| 13 | Chemical characteristics of PM_(2.5) during dust storms and air pollution events in Chengdu,China显示文摘每天好的微粒(PM2.5 ) 样品从 2009 年 4 月在 Chengdu 被收集到 2010 年 2 月在灰尘暴风雨(决策支持系统) 和污染事件的几种类型期间调查他们的化学侧面,包括薄雾(HD ) ,燃烧的生物资源(BB ) ,和焰火显示(FD ) 。最高的 PM2.5 集体集中在决策支持系统(283.3 g/m3 ) 期间被发现,列在后面由 FD (212.7 g/m3 ) , HD (187.3 g/m3 ) ,和 BB (130.1 g/m3 ) 。大多数元素的集中在决策支持系统和污染事件期间被提高,除了 BB。第二等的无机的离子(NO3, SO42,和 NH4+) 在 HD 期间被充实,当从 BB 的 PM2.5 显示出高 K+ 时但是低 SO42。FD 在 SO42 在 K+ 和丰富引起了增加。Ca2+ 充满 DS 样品。离子平衡计算从 HD 显示了那 PM2.5, FD 比在正常的天更酸,但是 DS 和 BB 粒子是碱的。最高器官的碳(OC ) 集中在 FD 期间是 26.1 g/m3,列在后面由 BB (23.6 g/m3 ) , HD (19.6 g/m3 ) ,和决策支持系统(18.8 g/m3 ) 。相反,元素的碳(EC ) 集中比在 BB (6.2 g/m3 ) 和决策支持系统(6.0 g/m3 ) 期间在 HD (10.6 g/m3 ) 和 FD (9.5 g/m3 ) 期间是更丰富的。最高的 OC/EC 比率在 BB 期间被获得,与在 HD 期间最低。SO42/K+ 和 TCA/SO42 比率证明了是为区分污染事件的有效指示物。集体平衡证明那有机物, SO42,和 NO3 在污染事件期间是主导的化学部件,当土壤灰尘在决策支持系统期间是主导的时。 | Qiyuan Wang Junji Cao Zhenxing Shen JunTao Shun Xiao Lei Luo Qingyang He Xinying Tang | 2013 | Particuology2013,11,1: | 23 |
| 14 | Flow Characteristics Diagnosis and Optimization for Dust Collectors Inflow Duct in Thermal Power Plants显示文摘火电厂烟风道用于输送烟气、冷风等介质,其设计优化水平不但影响火电厂烟风系统阻力的大小,而且影响与烟风道直接相连的各个设备的运行状态。某600MW机组除尘器前烟道设计不合理,存在磨损严重、进入除尘器烟气分配不均等问题,文中采用标准缸£模型,利用Fluent求解器对该部分烟道的流场进行数值计算,诊断分析其存在的主要问题,提出的3个改造方案均可使烟道阻力大幅度下降、烟道磨损减轻、进入除尘器烟气分配均匀。同时,研究了缓转半径及烟气流速对该段烟道阻力和烟气分配的影响情况,计算结果表明该段烟道缓转半径宜选在0.875以上,烟气流速对该段烟道的性能基本没有影响。 | LIU Ming MENG Guixiang YAN Junjie CHEN Weixiong LI Weidong CHONG Daotong LIU Jiping | 2013 | 中国电机工程学报2013,33,11: | 22 |
| 15 | Response of runoff in the headwater region of the Yellow River to climate change and its sensitivity analysis显示文摘在到气候变化和它的敏感的黄河的 headwater 区域的流量的反应在时期期间在四个水文学车站和十个气象站基于测量数据被分析 19592008。结果显示在这个区域的温度的那个变化与全球温暖和在在这个区域的每个分区的温度一直在介绍的年度一般水准的变化有一种明显的相应关系过去的 50 年里的一个变动、升起的状态。因为不同地理位置和环境的影响,然而,降水的变化在总体上生产流量的区域一直在介绍的年度降水的各种各样的区域,和变化是比在这个区域的温度的变化更复杂的过去的 50 年里的一个变动、减少的状态。并且在这个区域在流量和降水和温度之间有一种显著非线性的相互关系。因为,自从 1990,在这个区域的流量连续地一直在减少降水总体上生产流量的区域显然减少,年度平均温度连续地升起。总体上,当在在 Jimai 上面的分区的流量相应地在在这个区域的其它比那对温度变化更敏感时,在黄河的 headwater 区域的每个分区的流量对降水变化相当敏感。 | LAN Yongchao ZHAO Guohui ZHANG Yaonan WEN Jun HU Xinglin LIU Jinqi GU Minglin CHANG Junjie MA Jianhua | 2010 | Journal of Geographical Sciences2010,20,6: | 20 |
| 16 | Responses of ephemeral plant germination and growth to water and heat conditions in the southern part of Gurbantunggut Desert显示文摘在 Gurbantunggut 沙漠的南部的部分的短暂植物系统地从 2002 ~ 2004 被监视,气象学的数据和土壤潮湿在一样的时期期间被分析。结果证明短暂植物萌芽和生长对水和热状况的变化敏感。超过 0 的每日的温度的时间 ????????? | WANG Xueqing JIANG Jin WANG Yuanchao LUO Weilin SONG Chunwu CHEN Junjie | 2006 | Chinese Science Bulletin2006,51,A01: | 19 |
| 17 | QTL editing confers opposing yield performance in different rice varieties显示文摘Grain yield is one of the most important and complex trait for genetic improvement in crops; it is known to be controlled by a number of genes known as quantitative trait loci(QTLs). In the past decade, many yield-contributing QTLs have been identified in crops.However, it remains unclear whether those QTLs confer the same yield performance in different genetic backgrounds. Here, we performed CRISPR/Cas_9-mediated QTL editing in five widely-cultivated rice varieties and revealed that the same QTL can have diverse, even opposing, effects on grain yield in different genetic backgrounds. | Lan Shen Chun Wang Yaping Fu Junjie Wang Qing Liu Xiaoming Zhang Changjie Yan Qian Qian Kejian Wang | 2018 | Journal of Integrative Plant Biology2018,60,2: | 18 |
| 18 | PM_(2.5)-bound polycyclic aromatic hydrocarbons(PAHs) in Beijing:Seasonal variations,sources,and risk assessment显示文摘Polycyclic aromatic hydrocarbons(PAHs) have been of health concern due to its carcinogenesis and mutagenesis. In this study, we aimed to assess the variations, sources, and lifetime excessive cancer risk(ECR) attributable to PAHs bound to ambient particulate matters with aerodynamic diameter less than 2.5 μm(PM_(2.5)) in metropolitan Beijing, China. We collected24-hour integrated PM_(2.5) samples on daily basis between November 2014 and June 2015 across both central heating(cold months) and non-heating(warm months) seasons, and further analyzed the PAH components in these daily PM_(2.5) samples. Our results showed that total concentrations of PM_(2.5)-bound PAHs varied between(88.6 ± 75.4) ng/m^3 in the cold months and(11.0 ± 5.9) ng/m^3 in the warm months. Benzo[a]pyrene(Ba P), the carcinogenic marker of PAHs,averaged at 5.7 and 0.4 ng/m^3 in the cold and warm months, respectively. Source apportionment analyses illustrated that gasoline, biomass burning, diesel, coal combustion and cooking were the major contributors, accounting for 12.9%, 17.8%, 24.7%, 24.3% and 6.4% of PM_(2.5)-bound PAHs, respectively. The BaP equivalent lifetime ECR from inhalation of PM_(2.5)-bound PAHs was 16.2 cases per million habitants. Our results suggested that ambient particulate reduction from energy reconstruction and adaption of clean fuels would result in reductions PM_(2.5)-bound PAHs and its associated cancer risks. However, as only particulate phased PAHs was analyzed in the present study, the concentration of ambient PAHs could be underestimated. | Baihuan Feng Lijuan Li Hongbing Xu Tong Wang Rongshan Wu Jie Chen Yi Zhang Shuo Liu Steven Sai Hang Ho Junji Cao Wei Huang | 2019 | Journal of Environmental Sciences2019,31,3: | 17 |
| 19 | Intuitionistic fuzzy C-means clustering algorithms显示文摘Intuitionistic fuzzy sets(IFSs) are useful means to describe and deal with vague and uncertain data.An intuitionistic fuzzy C-means algorithm to cluster IFSs is developed.In each stage of the intuitionistic fuzzy C-means method the seeds are modified,and for each IFS a membership degree to each of the clusters is estimated.In the end of the algorithm,all the given IFSs are clustered according to the estimated membership degrees.Furthermore,the algorithm is extended for clustering interval-valued intuitionistic fuzzy sets(IVIFSs).Finally,the developed algorithms are illustrated through conducting experiments on both the real-world and simulated data sets. | Zeshui Xu Junjie Wu | 2010 | Journal of Systems Engineering and Electronics2010,21,4: | 17 |
| 20 | Emissions of polycyclic aromatic hydrocarbons from coking industries in China显示文摘这研究开始估计多不的芳香的烃的特征(哼) 从 coking 工业的排放,与在四典型焦炭植物进行的领域采样。为每选择植物,栈烟道气体样品在包括的进程期间是镇定的控告煤进炉(CC ) ,推焦炭(PC ) 和焦炭炉气体(CG ) 的燃烧。十六个个人在 US EPA 优先级表上哼被煤气的层析 / 团 spectrometry (GC/MS ) 分析。结果证明总数哼在烟道气体的集中从 45.776 ~ 414.874 g/m3 ,与为 CC (359.545 g/m3 ) 的最高的排放水平。集中哼在 CP1 (收费的邮票) 从 CC 过程射出从 CP3 和 CP4 (收费的顶) 是比那低的。Low-molecular-weight 哼(即,二 -- 到三戒指哼) 到总数的占优势的贡献者哼内容,和小睡, AcPy,流感, PhA,和蚂蚁被发现是最丰富的。为 CC (2.248 g/m3 ) 的全部的 BaPeq 集中比为 PC (1.838 g/m3 ) 的那些高, CG (1.082 g/m3 ) ,和 DbA 作为在从 coking 过程的排出物的 BaP 是到 carcinogenic 风险的一个重要贡献者。微粒哼比对总数的相应贡献哼的占了超过 20% 全部的 BaPeq 集中,它显著地高集体集中(5%) 。微粒并且气体哼当时,应该被考虑潜在的毒性风险哼污染在 coking 期间,过程被估计。吝啬的总数 -- 哼排放因素分别地是为 CC 和 PC 的 346.132 和 93.173 g/kg。 | Ling Mu Lin Peng Junji Cao Qiusheng He Fan Li Jianqiang Zhang Xiaofeng Liu Huiling Bai | 2013 | Particuology2013,11,1: | 17 |