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| 1 | In situ boron isotope measurements of natural geological materials by LA-MC-ICP-MS显示文摘There are two main methods to determine boron isotopic composition.One is the solution method,in which boron is purified after the samples are dissolved in solution and the boron isotope ratios are determined by thermal ionization mass spectrometry(P-TIMS and N-TIMS) or multicollector inductively coupled plasma mass spectrometry(MC-ICP-MS).The other is an in-situ analysis method,in which the in-situ boron isotopic ratios in minerals are analyzed directly using secondary ion mass spectrometry(SIMS) or laser ablation multicollector inductively coupled plasma mass spectrometry(LA-MC-ICP-MS).In the in-situ analysis method for boron isotopes,the multifarious chemical purification and separation processes of the solution method are avoided,with increased work efficiency.In addition,the microzones and microbeddings of minerals can be analyzed in-situ to reveal the fine processes and conditions of mineral formation.In this study,using the standard-sample-bracketing(SSB) method,mass bias of the instrument and the fractionation of isotopes were calibrated,and the in-situ determination method of LA-MC-ICP-MS for boron isotopes was established.Through detailed analyses on a series of boron isotope standards and samples,a matrix effect was assessed but not detected,and the analysis results were in accordance with the formerly reported values or P-TIMS determined values,within the error range.The analytical results for IAEA B4 and IMR RB1 with relatively high boron contents were δ 11B =-(8.36±0.58)‰(2σ,n=50) and δ 11B =-(12.96±0.97)‰(2σ,n=57),respectively;the analytical result for IAEA B6 with rela-tively low boron content was δ 11B =-(3.29±1.12)‰(2σ,n=35).In-situ measurements for B isotopes were performed on geo-logical samples such as tourmaline,ulexite,ludwigite,inyoite and ascharite,with the results consistent with those determined by P-TIMS,within the error range. | HOU KeJun LI YanHe XIAO YingKai LIU Feng TIAN YouRong | 2010 | Chinese Science Bulletin2010，55，29： | 13 |
| 2 | Helium Isotope Geochemistry of Ultrahigh-Pressure Metamorphic Eclogites From the Dabie-Sulu Terrane in East China显示文摘The 3He/4He ratios of most eclogites from the Dabie-Sulu terrane range from 0.056 to 0.67 Ra; the data points fall into the mixing part of the crust and the mantle in the 3He-4He diagram. The 3He/4He ratios of eclogites are obviously correlated with the types of their surrounding rocks. The helium isotope composition of the eclogites from the Bixiling complex possesses characters of mantle-derived rocks with the 3He/4He ratio being 5.6 Ra. The 4He concentration of the eclogites exhibits visible inverse correlation with the δ18O value of the quartz in the eclogites from the Sulu area. The δ18O values of the eclogites change synchronously with those of the country rocks. Those results suggest that protoliths of the eclogites were basic-ultrabasic rock bodies or veins intruding into the continental crust in the early stage; strong exchange and hybridization between the basic-ultrabasic rocks and continental rocks and the atmospheric water during the intrusion led to abrupt increase of the 3He/4He ratios, | LI Yanhe LI Jincheng SONG Hebin LIU Xiaochun | 2000 | Acta Geologica Sinica(English Edition)2000，74，1： | 12 |
| 3 | Oil–water pre-separation with a novel axial hydrocyclone显示文摘A novel hydrocyclone with guide vanes, named as axial hydrocyclone(AHC), is designed to tackle the problem of oil–water separation faced by most mature oilfields. Optimal design of the AHC is carried out by using numerical methods. The effects of guide vanes, cone angle, tapered angle and overflow pipe on the oil–water separation are discussed in this paper. The results show that a double swirling flow is generated in the tapered section where oil–water separation occurs. Both the cylindrical and the tapered section have important influences on AHC performance. On the basis of single factor results, response surface methodology is employed to optimize the AHC design. The experimental results indicate that the novel AHC has an excellent performance for the oil–water separation. | Meili Liu Jiaqing Chen Xiaolei Cai Yanhe Han Si Xiong | 2018 | Chinese Journal of Chemical Engineering2018，26，1： | 12 |
| 4 | Late Mesozoic Ore-forming Events in the Ningwu Ore District, Middle-Lower Yangtze River Polymetallic Ore Belt, East China: Evidence from Zircon U-Pb Geochronology and Hf Isotopic Compositions of the Granodioritic Stocks显示文摘Late Mesozoic volcanic-subvolcanic rocks and related iron deposits, known as porphyry iron deposits in China, are widespread in the Ningwu ore district (Cretaceous basin) of the middle-lower Yangtze River polymetallic ore belt, East China. Two types of Late Mesozoic magmatic rocks are exposed: one is dioritic rocks closely related to iron mineralization as the hosted rock, and the other one is granodioritic (-granitic) rocks that cut the ore bodies. To understand the age of the iron mineralization and the ore-forming event, detailed zircon U-Pb dating and Hf isotope measurement were performed on granodioritic stocks in the Washan, Gaocun-Nanshan, Dongshan and Heshangqiao iron deposits in the basin. Four emplacement and crystallization (typically for zircons) ages of granodioritic rocks were measured as 126.1±0.5 Ma, 126.8±0.5 Ma, 127.3±0.5 Ma and 126.3±0.4 Ma, respectively in these four deposits, with the LA-MC-ICP-MS zircon U-Pb method. Based on the above results combined with previous dating, it is inferred that the iron deposits in the Ningwu Cretaceous basin occurred in a very short period of 131-127 Ma. In situ zircon Hf compositions of εHf(t) of the granodiorite are mainly from -3 to -8 and their corresponding 176Hf/177Hf ratio are from 0.28245 to 0.28265, indicating similar characteristics of dioritic rocks in the basin. We infer that granodioritic rocks occurring in the Ningwu ore district have an original relationship with dioritic rocks. These new results provide significant evidence for further study of this ore district so as to understand the ore-forming event in the study area. | DUAN Chao LI Yanhe HOU Kejun YUAN Shunda LIU Jialin ZHANG Cheng | 2012 | Acta Geologica Sinica(English Edition)2012，86，3： | 11 |
| 5 | Sedimentary Characteristics and Paleoenvironmental Records of Zabuye Salt Lake,Tibetan Plateau,since 128 ka BP显示文摘This paper for the first time reveals high-resolution core records of Zabuye Salt Lake in the interior of the Qinghai-Tibet Plateau.According to 1346 samples taken continuously,relatively accurate ^(14)C,U-series disequilibrium and ESR ages have been obtained,thus revealing that the lake core ages from 0 to 83.63m of hole SZK02 are~800 to over 128 ka.In the paper,the lake core sedimentary characteristics(including the lithologies and mineral assemblages)are analyzed in detail and correlated with ostracod assemblages I to XX and sporopollen zones A to I,and on the basis of an integrated analysis of theδ^(18)0 values of authigenic calcium-magnesium carbonate and environmental proxies of minerals,sporopollen and microfossils in the lake core,a correlation has been made of oxygen isotope change between this lake core and the Greenland GISP2 and GRIP and Guliya ice cores,and the climate of Zabuye Salt Lake since 128 ka BP is divided into the last interglacial stage (including substages e,d,c,b and a)of oxygen isotope stage(OIS)5,early glacial stadial of the last glacial stage of OIS 4,interglacial stadial of the last glacial stage of OIS 3,late glacial stadial of the last glacial stage or Last Glacial Maximum of OIS 2 and postglacial state of OIS 1;in addition,6 Heinrich (H_6-H_1)events,Younger Dryas event and 8.2 ka BP cold event have been recognized. | ZHENG Mianping YUAN Heran LIU Junying LI Yanhe MA Zhibang SUN Qing | 2007 | Acta Geologica Sinica(English Edition)2007，81，5： | 10 |
| 6 | Separation and Precise Measurement of Lithium Isotopes in Three Reference Materials Using Multi Collector-Inductively Coupled Plasma Mass Spectrometry显示文摘Lithium separation technique for three reference materials has been established together with precise determination of lithium isotope using a Neptune multi collector-inductively coupled plasma mass spectrometry (MC-ICP-MS). The solutions of lithium element standard reference materials, potassium, calcium, sodium, magnesium and iron single element, were used to evaluate analytical methods applied. Three separate stages of ion-exchange chromatography were carried out using organic cation-exchange resin (AG 50W-X8). Lithium was enriched for the three stages using different eluants, which are 2.8 M HCl, 0.15 M HCl and 0.5 M HCl in 30% ethanol, respectively. The columns for the first and second stages are made of polypropylene, and those for the third stage are made of quartz. Total reagent volume for the entire chemical process was 35 mL for three reference materials. The recovery yielded for the three stages is 98.9-101.2% with an average of 100.0%, 97.6- 101.9% with an average of 99.9%, and 99.8-103.3% with an average of 100.6%, respectively. The precision of this technique is conservatively estimated to be ±0.72-1.04‰ (2σ population), which is similar to the precision obtained by different authors in different laboratories with MC-ICP-MS. The δ 7 Li values ( 7 Li/ 6 Li relative to the IRMM-016 standard) determined for andesite (AGV-2) and basalt (BHVO-2) are 5.68‰ (n=18), 4.33‰ (n=18), respectively. The δ 7 Li value ( 7 Li/ 6 Li relative to the L-SVEC standard) determined for IRMM-016 is -0.01‰ (n=15). All these analytical results are in good agreement with those previously reported. In addition, the results for the same kinds of samples analyzed at the MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, are consistent with those obtained at the Plasma Laboratory, University of Maryland, within analytical uncertainty. According to these experiment results, it is concluded that this proposed procedure is a suitable method for determining the lithium isotopic composition of natural samples. | TIAN Shihong HOU Zengqian SU Aina HOU Kejun HU Wenjie LI Zhenzhen ZHAO Yue GAO Yanguang LI Yanhe YANG Dan YANG Zhusen | 2012 | Acta Geologica Sinica(English Edition)2012，86，5： | 9 |
| 7 | S, C, O, H Isotope Data and Noble Gas Studies of the Maoniuping LREE Deposit, Sichuan Province, China: A Mantle Connection for Mineralization显示文摘Maoniuping REE 存款,定位了大约 22 km 到 Mlanning 的西南,四川省,是在中国的第二最大的轻 REE 存款,对 Bayan OboFe-Nfo-REE 存款 inihe 随后内部蒙古自治区域。构造地,它位于在 Panxi 裂缝之间的过渡地区和 Longmenshan-Jinpingshan orogenic 地区。它是在碱的复合岩石招待的 acarbonatite 静脉类型沉积物。bastnaesite 重晶石, bastnaesite 方解石,和 bastnaesite-microcline 矿脉是主要 REE 矿石矿脉的三种类型。在这些之中,第一条矿脉最广泛地被散布,它的 REE 矿化作用最强壮。在存款的矿石的 barltes 的 DELTA^(34 )S_(V-CDT ) 价值每千条 Inthe bastnaesite 重晶石矿脉在 bastnaesite 方解石矿脉和 +33 每千在 +5.0 的一个狭窄的范围变化到 +5.1 到 +5.9,显示出导出岩浆的硫的同位素的特征。分别地,O_(V降雪)在bastnaesite方解石矿脉珍视的TheDELTA^( 13 )C_( V-PDB )价值和DLETA^( 18 )每千每千并且从 +7.3 从 -3.9 到 -6.9 到 +9.7 它掉进“主要 carbonatites ”的范围,在 Maoniupingdeposit 的矿石显示出那碳和氧主要从深来源被导出。液包体的 DELTA^(13 )C_(V-PDB ) 价值每千从 -3.0 变化到 -5.6,与到在 bastnaesite 方解石矿脉的每千的 -4.0 的 -3.0 和到在 bastnaesite 重晶石矿脉的每千的 -5.6 的 -3.0,它显示出特征导出 ofmantle 的碳。detla^(18O_((H_2OV ) 液包体的 -SMOW)) 价值每千从 -57 to-88 ,与到 -86 的 -63 每千在到 -88 的 bastnaesite 方解石矿脉和 -57 每千在 bastnaesite 重晶石矿脉,它导出披风的氢的表演特征。TheDELTA^(18 )O_(H_2OV 降雪) 价值每千从 +7.4 变化到 +8.6 在。bastnaesite-calcitelode,和 +6.7 到 +7.8 每千在 bastnaesite 重晶石矿脉,几乎重叠范围 of+5.5 到 +9.5 每千为 magmatic。~ 4He 内容, R/Ra 比率是(13.95 to119.58 )X10^(-6)(cm^3/g )_(STP ) 并且 0.02 ~ 0.11,分别地并且 ^(40 )Ar/^(36 ) Ar 是 313 +- 1 to437 +- 2。就放射性元素的高内容引起的 4He 增加而言,导出 amantle 的液体可能在 fluorlte,方解石和 bastnaesitesamples 在包括存在。Maoniuping 存款和它的联系 carbonatite 碱的建筑群在 40.3to 被形成 12.2 妈根据 K-Ar 和 U-Pb 数据。所有这些数据建议披风液体的大数量通过一个差错系统涉及 Maoniuping REE 存款的 metallogenic 进程。 | TIAN Shihong DING Tiping MAO Jingwen LI Yanhe YUAN Zhongxin | 2006 | Acta Geologica Sinica(English Edition)2006，80，4： | 6 |
| 8 | Chromosome-level genome of Himalayan yew provides insights into the origin and evolution of the paclitaxel biosynthetic pathway显示文摘Taxus,commonly known as yew,is a well-known gymnosperm with great ornamental and medicinal value.In this study,by assembling a chromosome-level genome of the Himalayan yew(Taxus wallichiana)with 10.9 Gb in 12 chromosomes,we revealed that tandem duplication acts as the driving force of gene family evolution in the yew genome,resulting in the main genes for paclitaxel biosynthesis,i.e.those encoding the taxadiene synthase,P450s,and transferases,being clustered on the same chromosome.The tandem duplication may also provide genetic resources for the nature to sculpt the core structure of taxoids at different positions and subsequently establish the complex pathway of paclitaxel by neofunctionalization.Furthermore,we confirmed that there are two genes in the cluster encoding isoenzymes of a known enzyme in the paclitaxel biosynthetic pathway.The reference genome of the Himalayan yew will serve as a platform for decoding the complete biosynthetic pathway of paclitaxel and understanding the chemodi-versity of taxoids in gymnosperms. | Jian Cheng Xiao Wang Xiaonan Liu Xiaoxi Zhu Zihe Li Huanyu Chu Qian Wang QianQian Lou Bijun Cai Yiqun Yang Xiaoyun Lu Kai Peng Dingyu Liu Yuwan Liu Lina Lu Huan Liu Ting Yang Qijin Ge Chengcheng Shi Guichun Liu Zhiwei Dong Xun Xu Wen Wang Huifeng Jiang Yanhe Ma | 2021 | Molecular Plant2021，14，7： | 6 |
| 9 | Crystal structures of D-psicose 3-epimerase from Clostridium cellulolyticum H10 and its complex with ketohexose sugars显示文摘D-Psicose 3-epimerase(DPEase)is demonstrated to be useful in the bioproduction of D-psicose,a rare hexose sugar,from D-fructose,found plenty in nature.Clostridium cellulolyticum H10 has recently been identified as a DPEase that can epimerize D-fructose to yield D-psicose with a much higher conversion rate when compared with the conventionally used DTEase.In this study,the crystal structure of the C.cellulolyticum DPEase was determined.The enzyme assembles into a tetramer and each subunit shows a(β/α)8 TIM barrel fold with a Mn2+metal ion in the active site.Additional crystal structures of the enzyme in complex with substrates/products(D-psicose,D-fructose,D-tagatose and D-sorbose)were also determined.From the complex structures of C.cellulolyticum DPEase with D-psicose and D-fructose,the enzyme has much more interactions with D-psicose than D-fructose by forming more hydrogen bonds between the substrate and the active site residues.Accordingly,based on these ketohexosebound complex structures,a C3-O3 proton-exchange mechanism for the conversion between D-psicose and D-fructose is proposed here.These results provide a clear idea for the deprotonation/protonation roles of E150 and E244 in catalysis. | Hsiu-Chien Chan Yueming Zhu Yumei Hu Tzu-Ping Ko Chun-Hsiang Huang Feifei Ren Chun-Chi Chen Yanhe Ma Rey-Ting Guo Yuanxia Sun | 2012 | Protein & Cell2012，3，2： | 6 |
| 10 | HCV NS5A abrogates p53 protein function by interfering with p53-DNA binding显示文摘AIM: To evaluate the inhibition effect of HCV NS5A on p53 transactivation on p21 promoter and explore its possible mechanism for influencing p53 function.METHODS: p53 function of transactivation on p21 promoter was studied with a luciferase reporter system in which the luciferase gene is driven by p21 promoter, and the p53-DNA binding ability was observed with the use of electrophoretic mobility-shift assay (ENSA). Lipofectin mediated p53 or HCV NS5A expression vectors were used to transfecthepatoma cell lines to observe whether HCV NS5A could abrogate the binding ability of p53 to its specific DNA sequence and p53 transactivation on p21 promoter.Western blot experiment was used for detection of HCVNS5A and p53 proteins expression.RESULTS: Relative luciferase activity driven by p21 promoter increased significantly in the presence of endogenous p53 protein. Compared to the control group, exogenous p53 protein also stimulated p21 promoter driven luciferase gene expression in a dose-dependent way. HCV NS5Aprotein gradually inhibited both endogenous andexogenous p53 transactivation on p21 promoter withincrease of the dose of HCV NS5A expression plasmid. By the experiment of ErVlSA, we could find p53 binding to its specific DNA sequence and, when co-transfected with increased dose of HCV NS5A expression vector, the p53binding affinity to its DNA gradually decreased and finally disappeared. Between the Huh 7 cells transfected with p53 expression vector alone or co-transfected with HCV NS5A expression vector, there was no difference in thep53 protein expression.CONCLUSION: HCV NS5A inhibits p53 transactivation onp21 promoter through abrogating p53 binding affinity toits specific DNA sequence. It does not affect p53 proteinexpression. | Guo-ZhongGong Yong-FangJiang YanHe Li-YingLai Ying-HuaZhu Xian-ShiSu | 2004 | World Journal of Gastroenterology2004，10，15： | 5 |
| 11 | Rutile TiO2 Microspheres with Exposed Nano-Acicular Single Crystals for Dye-Sensitized Solar Cells显示文摘有暴露的 nano 针状的单个晶体的特别地结构化的金红石 TiO2 microspheres 成功地经由一个灵巧的热水的方法被综合了。在在 450 点的锻烧以后? | Haimin Zhang Hua Yu Yanhe Han Porun Liu Shanqing Zhang Peng Wang Yibing Cheng Huijun Zhao | 2011 | Nano Research2011，4，10： | 5 |
| 12 | Occurrence of the Iron–rich Melt in the Heijianshan Iron Deposit, Eastern Tianshan, NW China: Insights into the Origin of Volcanic Rock–hosted Iron Deposits显示文摘Long-standing controversy persists over the presence and role of iron–rich melts in the formation of volcanic rock-hosted iron deposits. Conjugate iron–rich and silica–rich melt inclusions observed in thin-sections are considered as direct evidence for the presence of iron-rich melt, yet unequivocal outcrop-scale evidence of iron-rich melts are still lacking in volcanic rock-hosted iron deposits. Submarine volcanic rock-hosted iron deposits, which are mainly distributed in the western and eastern Tianshan Mountains in Xinjiang, are important resources of iron ores in China, but it remains unclear whether iron-rich melts have played a role in the mineralization of such iron ores. In this study, we observed abundant iron-rich agglomerates in the brecciated andesite lava of the Heijianshan submarine volcanic rock–hosted iron deposit, Eastern Tianshan, China. The iron-rich agglomerates occur as irregular and angular masses filling fractures of the host brecciated andesite lava. They show concentric potassic alteration with silicification or epidotization rims, indicative of their formation after the wall rocks. The iron-rich agglomerates have porphyritic and hyalopilitic textures, and locally display chilled margins in the contact zone with the host rocks. These features cannot be explained by hydrothermal replacement of wall rocks(brecciated andesite lava) which is free of vesicle and amygdale, rather they indicate direct crystallization of the iron-rich agglomerates from iron-rich melts. We propose that the iron-rich agglomerates were formed by open-space filling of volatile-rich iron-rich melt in fractures of the brecciated andesite lava. The iron-rich agglomerates are compositionally similar to the wall-rock brecciated andesite lava, but have much larger variation. Based on mineral assemblages, the iron-rich agglomerates are subdivided into five types, i.e., albite-magnetite type, albite-K-feldsparmagnetite type, K-feldspar–magnetite type, epidote-magnetite type and quartz-magnetite type, representing that products formed at different stages during the evolution of a magmatic-hydrothermal system. The albite-magnetite type represents the earliest crystallization product from a residual ironrich melt; the albite-K-feldspar-magnetite and K-feldspar-magnetite types show features of magmatichydrothermal transition, whereas the epidote-magnetite and quartz-magnetite types represent products of hydrothermal alteration. The occurrence of iron-rich agglomerates provides macroscopic evidence for the presence of iron-rich melts in the mineralization of the Heijianshan iron deposit. It also indicates that iron mineralization of submarine volcanic rock-hosted iron deposits is genetically related to hydrothermal fluids derived from iron-rich melts. | LI Houmin LI Lixing DING Jianhua LI Yanhe SONG Zhe MENG Jie MA Yubo | 2018 | Acta Geologica Sinica(English Edition)2018，92，2： | 5 |
| 13 | Discovery of Mass Independent Oxygen Isotopic Compositions in Superscale Nitrate Mineral Deposits from Turpan-Hami Basin,Xinjiang,China and Its Significance显示文摘在东方 Xinjiang 的 Turpan-Hami 盆是在地球上的最干燥的区域和首要的环境之一形成并且保存硝酸盐。在这盆的大硝酸盐矿石域最近被发现。它在那里被估计是硝酸盐的大约 25 亿个大量资源,并且数量像在智利的 Atacama 荒芜的超级规模的硝酸盐沉积物一样。硝酸盐是有团无关的分别(MIF ) 的一些矿物质之一,并且氧同位素 MIF 是一个有效方法决定硝酸盐的来源。17O,硝酸盐的 18O 被氟化作用和热分解方法测量。日期显示这是氧同位素 MIF 位于内陆硝酸盐矿物质的第一次。结果由二个方法获得了是类似的, 17O=17O0.52 映杯吗? | LI Yanhe QIN Yan LIU Feng HOU Kejun WAN Defang | 2010 | Acta Geologica Sinica(English Edition)2010，84，6： | 5 |
| 14 | N and O isotopes and the ore-forming mechanism of nitrate deposits in the Turpan-Hami Basin,Xinjiang,China显示文摘The recently discovered nitrate ore field in the Turpan-Hami Basin of western China represents an estimated resource of 2.5 billion tons, and is comparable in scale to the Atacama Desert super-scale nitrate deposit in Chile. The research on this area is rarely carried out, and the origin of the deposits remains uncertain. In this study, new methods were used to systematically analyze N and O isotopes in nitrate minerals collected from the Kumutage, Xiaocaohu, Wuzongbulak, Dawadi, Tuyugou, and Shaer ore deposits in the Turpan-Hami Basin. The data showed that the δ15NAir value ranges from 0.7‰ to 27.6‰, but mostly between 2‰ and 6‰, which was similar to atmospheric NO3-. The 18O was highly enriched with δ18OV-SMOW varying from 30.2‰ to 46.7‰. This differs from levels in deposits derived from microbial nitrogen fixation, but is similar to those in atmospheric nitrates. N and O isotopes data indicated that nitrate deposits in Turpan-Hami Basin must be the result of deposition of atmospheric nitrate particles. Although atmospheric nitrate particles are common, the nitrate deposits could form only under the condition of long-term extreme drought climate and very limited biological activity. This paper summarized the ore-forming mechanism of different types nitrate deposits based on their geological setting. | QIN Yan LI YanHe LIU Feng HOU KeJun WAN DeFang ZHANG Cheng | 2012 | Science China Earth Sciences2012，55，2： | 5 |
| 15 | Precise temporal regulation of Dux is important for embryo development显示文摘Dear Editor,Zygotic genome activation(ZGA)following fertilization is accomplished through a process termed the maternal-to-zygotic transition,during which the maternal RNAs and proteins are degraded and zygotic genome is transcriptionally activated.In mice,minor ZGA occurs from S phase of the zygote to G1 phase of the two-cell(2C)embryo,while major ZGA takes place during the middle-to-late 2C stage with a burst of transcription of totipotent cleavage stage-specific genes and retrotransposons. | Mingyue Guo Yanping Zhang Jianfeng Zhou Yan Bi Junqin Xu Ce Xu Xiaochen Kou Yanhong Zhao Yanhe Li Zhifen Tu Kuisheng Liu Jiaming Lin Peng Yang Shaorong Gao Yixuan Wang | 2019 | Cell Research2019，29，11： | 5 |
| 16 | Risk Factors for Age-Related Macular Degeneration in Elderly Chinese Population in Shenyang of China显示文摘Objective The paper aims to evaluate the risk factors for age‐related macular degeneration (AMD) in elderly Chinese population in Shenyang,a northeast city of China.Methods A case‐control study was conducted to investigate the risk factors for the prevalence of AMD.Ninety three AMD patients diagnosed by a complete ophthalmic examination were recruited as cases from the outpatient departments of two eye hospitals in Shenyang,while 108 normal subjects of similar age and sex were recruited as controls.A questionnaire was administered among both cases and controls.Results AMD patients aged 60 years and older accounted for 75.3%.There were significantly higher educational levels,shorter smoking history,less sunlight exposure and cataract,and higher proportion of antioxidants intake in controls than in AMD patients.The frequency of intake of fruits,legumes,fish and shrimps was significantly higher in controls than in AMD patients.In a binary logistic regression analysis,smoking and cataract were the risk factors for AMD (OR:4.44,95% CI:2.27‐8.69;OR:4.47,95% CI:2.26‐8.85 respectively).The high educational background was a protective factor for AMD (OR:0.761,95% CI:0.51‐0.98).Conclusion A low educational background,smoking and cataract are associated with a higher prevalence of AMD. | JIA LiHong SHEN XueLi FAN Rui SUN Yan PAN XingYue YANH HongMei LIU Lu | 2011 | Biomedical and Environmental Sciences2011，24，5： | 4 |
| 17 | Photoelectrocatalytic activity of an ordered and vertically aligned TiO2 nanorod array/BDD heterojunction electrode显示文摘Rutile TiO_2 nanorod(TiNR) arrays were fabricated on a boron-doped diamond(BDD) substrate by a simple hydrothermal synthesis method. A fluorine-doped tin oxide(FTO) electrode grown with TiNR arrays was also prepared using the same technology for comparison. Field-emission scanning electron microscopy results show that oriented TiNR arrays can grow vertically on the surface of BDD and FTO electrodes. TiNR arrays grown on both electrodes had the same length(3 μm). In comparison with the TiNR/FTO electrode, the TiNR/BDD electrode demonstrated a higher photoelectrocatalytic activity for the degradation of water and organic compounds, which is mostly attributed to the formation of a p-n heterojunction between the TiNR arrays and BDD at high potential, apart from the density of TiNR. A linear relationship between the photoelectrocatalytic current and the organic concentration can be observed on both electrodes. However, the linear range between net photoelectrocatalytic current values and organic compound concentrations for the TiNR/BDD electrode are much greater than those for the TiNR/FTO electrode, which makes the TiNR/BDD electrode a versatile material for the photocatalytic degradation and sensing of organic compounds. | Yanhe Han Lei Zhang Yafei Wang Haimin Zhang Shanqing Zhang | 2017 | Science Bulletin2017，62，9： | 4 |
| 18 | Kinetics of enhanced adsorption by polarization for organic pollutants on activated carbon fiber显示文摘The adsorption kinetics for model pollutants on activated carbon fiber(ACF)by polarization was investigated in this work.Kinetics data obtained for the adsorption of these model pollutants at open-circuit,400 mV,and−400 mV polarization were applied to the Lagergren equation,and adsorption rate constants(Ka)were determined.With the anodic polarization of 400 mV,the capacity of sodium phenoxide was increased from 0.0083 mmol/g at open-circuit to 0.18 mmol/g,and a 17-fold enhancement was achieved;however,the capacity of p-nitrophenol was decreased from 2.93 mmol/g at open-circuit to 2.65 mmol/g.With the cathodal polarization of−400 mV,the capacity of aniline was improved from 3.60 mmol/g at open-circuit to 3.88 mmol/g;however,the capacity of sodium dodecylben-zene sulfonate was reduced from 2.20 mmol/g at open-circuit to 1.59 mmol/g.The enhancement for electrosorption changed with dif ferent groups substituting.Anodic polarization enhances the adsorption of benzene with the electron-donating group.But whether anodic or not,cathodal polariza-tion had less effect on the adsorption of electron-accepting aromatic compounds,and decreased the adsorption capacity of benzene-bearing donor-conjugate bridge-acceptor,while increasing its adsorption rate.Electrostatic interaction played a very important role in the electrosorption of ion-pollutants. | HAN Yanhe QUAN Xie ZHAO Huimin CHEN Shuo ZHAO Yazhi | 2007 | Frontiers of Environmental Science & Engineering2007，1，1： | 4 |
| 19 | Structural parameter optimization for novel internal-loop iron–carbon micro-electrolysis reactors using computational fluid dynamics显示文摘It is generally recognized that internal-loop reactors are well-developed mass and heat-transfer multiphase flow reactors. However, the internal flow field in the internal-loop reactor is influenced by the structure parameter of the reactor, which has a great effect on the reaction efficiency. In this study, the computational fluid dynamics simulation method was used to determine the influence of reactor structure on flow field, and a volume-offluid model was employed to simulate the gas–liquid, two-phase flow of the internal-loop micro-electrolysis reactor. Hydrodynamic factors were optimized when the height-to-diameter ratio was 4:1, diameter ratio was9:1, draft-tube axial height was 90 mm. Three-dimensional simulations for the water distributor were carried out, and the results suggested that the optimal conditions are as follows: the number of water distribution pipes was four, and an inhomogeneous water distribution was used. According to the results of the simulation,the suitable structure can be used to achieve good fluid mechanical properties, such as the good liquid circulation velocity and gas holdup, which provides a good theoretical foundation for the application of the reactor. | Lei Zhang Mengyu Wu Yanhe Han Meili Liu Junfeng Niu | 2019 | Chinese Journal of Chemical Engineering2019，27，4： | 3 |
| 20 | Extreme Enrichment of Tellurium in Deep-Sea Sediments显示文摘Tellurium is a sort of scattered rare element on the earth. Its concentration is very low in earth’s crust, only 1.0 ng/g. However, it has extremely high abundance in Co-rich crusts, marine polymetallic nodules, deep-sea sediments and aerolites. To find out the origin of tellurium enrichment in deep-sea sediments, we analyzed and compared tellurium concentrations and helium isotope compositions in the magnetic parts and those in the bulk parts of deep-sea sediments. The result indicates that the helium content, 3He/4He ratio and tellurium concentration are obviously higher in the magnetic parts than those in the bulk parts. The 3He abundance varies synchronously with the tellurium concentration. 3He and Te have a distinct positive correlation with each other. It is the first time that the paper brings forward that the extreme enrichment of tellurium in deep-sea sediments, like helium isotope anomalies, probably results from the input of interplanetary dust particles (IDPs). Similarly, the extreme enrichment of tellurium in marine polymetallic nodules and Co-rich crusts is possibly related to IDPs. | LI Yanhe WANG Yimin SONG Hebin YUE Guoliang | 2005 | Acta Geologica Sinica(English Edition)2005，79，4： | 3 |
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