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| 1 | A complete sequence and comparative analysis of a SARS-associated virus(Isolate BJ01)显示文摘The genome sequence of the Severe Acute Respiratory Syndrome (SARS)-associated virus provides essential information for the identification of pathogen(s), exploration of etiology and evolution, interpretation of transmission and pathogenesis, development of diagnostics, prevention by future vaccination, and treatment by developing new drugs. We report the complete genome sequence and comparative analysis of an isolate (BJ01) of the coronavirus that has been recognized as a pathogen for SARS. The genome is 29725 nt in size and has 11 ORFs (Open Reading Frames). It is composed of a stable region encoding an RNA-dependent RNA polymerase (composed of 2 ORFs) and a variable region representing 4 CDSs (coding sequences) for viral structural genes (the S, E, M, N proteins) and 5 PUPs (putative uncharacterized proteins). Its gene order is identical to that of other known coronaviruses. The sequence alignment with all known RNA viruses places this virus as a member in the family of Coronaviridae. Thirty putative substitutions have been identified by comparative analysis of the 5 SARS- associated virus genome sequences in GenBank. Fifteen of them lead to possible amino acid changes (non-synonymous mutations) in the proteins. Three amino acid changes, with predicted alteration of physical and chemical features, have been detected in the S protein that is postulated to beinvolved in the immunoreactions between the virus and its host. Two amino acid changes have been detected in the Mprotein, which could be related to viral envelope formation. Phylogenetic analysis suggests the possibility of non-human origin of the SARS-associated viruses but provides noevidence that they are man-made. Further efforts should focus on identifying the etiology of the SARS-associated virus and ruling out conclusively the existence of otherpossible SARS-related pathogen(s). | QIN E'de ZHU Qingyu YU Man FAN Baochang CHANG Guohui SI Bingyin YANG Bao PENG Wenming JIANG Tao LIU Bohua DENG Yongqiang LIU Hong ZHANG Yu WANG Cui LI Yuquan GAN Yonghua LI Xiaoyu L Fushuang TAN Gang CAO Wuchun, YANG Ruifu Institute of Microbiology and Epidemiology, Chinese Academy of Military Medical Sciences, Beijing 100071, China WANG Jian, LI Wei, XU Zuyuan, LI Yan, WU Qingfa, LIN Wei, CHEN Weijun, TANG Lin, DENG Yajun, HAN Yujun, LI Changfeng, LEI Meng, LI Guoqing, LI Wenjie, L Hong, SHI Jianping, TONG Zongzhong, ZHANG Feng, LI Songgang, LIU Bin, LIU Siqi, DONG Wei, WANG Jun, Gane K-S Wong, YU Jun & YANG Huanming* Beijing Genomics Institute, Chinese Academy of Sciences, Beijing 101300 National Center for Genome Information, Beijing 101300, China | 2003 | Chinese Science Bulletin2003，48，10： | 121 |
| 2 | A huge oceanic-type UHP metamorphic belt in southwestern Tianshan, China: Peak metamorphic age and P-T path显示文摘Recent progress in the study of the UHP metamorphic belt in southwestern Tianshan,China,is summarized in this paper.This about 80-km-long and over 10-km-wide UHP belt has been recognized by the discovery of coesite,coesite pseudomorphs and other UHP minerals.It is the largest oceanic-type UHP metamorphic belt reported so far.It has formed due to northward subduction of the Tianshan Paleo-Ocean.U-Pb dating of metamorphic rims of zircons from a coesite-bearing garnet-phengite schist yields a peak UHP metamorphic ages of 320±3.7 Ma.Combined with ages of 233–226 Ma obtained from rims of zircons from retrograded eclogites,a long retrograde metamorphic evolution(>70 Ma)has been revealed.According to phase equilibria modeling,the P-T paths of both coesite-bearing eclogites and garnet-phengite schists are characterized by thermal relaxation,i.e.,the metamorphic temperature peak lags behind the pressure peak,indicating that the UHP rocks experienced slow and long heating and decompression during exhumation in the subduction channel.On the basis of the field observation that a small amount of eclogite lenses is wrapped in large volumes of metapelites,and the similar P-T paths of both rock types,we propose that the exhumation of the UHP eclogites from southwestern Tianshan,China,may have resulted from the exhumation of large volumes of low-density metapelites,which carried the denser eclogites to the Earth’s surface. | ZHANG LiFei DU JinXue Lü Zeng YANG Xin GOU LongLong XIA Bin CHEN ZhenYu WEI ChunJing SONG ShuGuang | 2013 | Chinese Science Bulletin2013，58，35： | 19 |
| 3 | Identification of fruit and branch in natural scenes for citrus harvesting robot using machine vision and support vector machine显示文摘With the decrease of agricultural labor and the increase of production cost,the researches on citrus harvesting robot(CHR)have received more and more attention in recent years.For the success of robotic harvesting and the safety of robot,the identification of mature citrus fruit and obstacle is the priority of robotic harvesting.In this work,a machine vision system,which consisted of a color CCD camera and a computer,was developed to achieve these tasks.Images of citrus trees were captured under sunny and cloudy conditions.Due to varying degrees of lightness and position randomness of fruits and branches,red,green,and blue values of objects in these images are changed dramatically.The traditional threshold segmentation is not efficient to solve these problems.Multi-class support vector machine(SVM),which succeeds by morphological operation,was used to simultaneously segment the fruits and branches in this study.The recognition rate of citrus fruit was 92.4%,and the branch of which diameter was more than 5 pixels,could be recognized.The results showed that the algorithm could be used to detect the fruits and branches for CHR. | Lü Qiang Cai Jianrong Liu Bin Deng Lie Zhang Yajing | 2014 | International Journal of Agricultural and Biological Engineering2014，7，2： | 17 |
| 4 | Operating principles and detection characteristics of the Visible and Near-Infrared Imaging Spectrometer in the Chang'e-3显示文摘The Visible and Near-Infrared Imaging Spectrometer(VNIS), using two acousto-optic tunable filters as dispersive components, consists of a VIS/NIR imaging spectrometer(0.45–0.95 μm), a shortwave IR spectrometer(0.9–2.4 μm) and a calibration unit with dust-proofing functionality. The VNIS was utilized to detect the spectrum of the lunar surface and achieve in-orbit calibration, which satisfied the requirements for scientific detection. Mounted at the front of the Yutu rover, lunar objects that are detected with the VNIS with a 45° visual angle to obtain spectra and geometrical data in order to analyze the mineral composition of the lunar surface. After landing successfully on the Moon, the VNIS performed several explorations and calibrations, and obtained several spectral images and spectral reflectance curves of the lunar soil in the region of Mare Imbrium. This paper describes the working principle and detection characteristics of the VNIS and provides a reference for data processing and scientific applications. | Zhi-Ping He Bin-Yong Wang Gang Lü Chun-Lai Li Li-Yin Yuan Rui Xu Bin Liu Kai Chen Jian-Yu Wang | 2014 | Research in Astronomy and Astrophysics2014，14，12： | 12 |
| 5 | CeCl_3·7H_2O as an efficient catalyst for one-pot synthesis of β-amino ketones by three-component Mannich reaction显示文摘Cerium trichloride heptahydrate(CeCl_3·7H_2O) was found to be an efficient and recyclable catalyst for the three-component direct Mannich reaction of anilines and benzaldehydes with acetophenone.This protocol has advantages of high yield,no environmental pollution,mild condition,and simple work-up procedure. | Yan Dai Chun Xu Lü | 2010 | Chinese Chemical Letters2010，21，1： | 10 |
| 6 | Indirect mineral carbonation of blast furnace slag with(NH4)2SO4 as a recyclable extractant显示文摘Large quantities of CO_2 and blast furnace slag are discharged in the iron and steel industry. Mineral carbonation of blast furnace slag can offer substantial CO_2 emission reduction and comprehensive utilisation of the solid waste. In this study, a recyclable extractant,(NH_4)_2SO_4, was used to extract calcium and magnesium from blast furnace slag(main phases of gehlenite and akermanite) by using low-temperature roasting to fix CO_2 through aqueous carbonation. The process parameters and efficiency of the roasting extraction, mineralisation, and Al recovery were investigated in detail. The results showed that the extractions of Ca, Mg, and Al can reach almost 100% at an(NH4)_2SO_4-to-slag mass ratio of 3:1 and at 370°C in 1 h. Adjusting the p H value of the leaching solution of the roasted slag to 5.5 with the NH_3 released during the roasting resulted in 99% Al precipitation, while co-precipitation of Mg was lower than 2%. The Mg-rich leachate after the depletion of Al and the leaching residue(main phases of CaSO_4 and SiO_2) were carbonated using(NH_4)_2CO_3 and NH_4HCO_3 solutions, respectively, under mild conditions. Approximately 99% of Ca and 89% of Mg in the blast furnace slag were converted into CaCO_3 and(NH_4)_2 Mg(CO_3)_2·4 H_2O,respectively. The latter can be selectively decomposed to magnesium carbonate at 100-200 °C to recover the NH_3 for reuse. In the present route, the total CO_2 sequestration capacity per tonne of blast furnace slag reached up to 316 kg, and 313 kg of Al-rich precipitate, 1000 kg of carbonated product containing CaCO_3 and SiO_2, and 304 kg of carbonated product containing calcium carbonate and magnesium carbonate were recovered simultaneously. These products can be used, respectively, as raw materials for the production of electrolytic aluminium, cement, and light magnesium carbonate to replace natural resources. | Jinpeng Hu Weizao Liu Lin Wang Qiang Liu Fang Chen Hairong Yue Bin Liang Li Lü Ye Wang Guoquan Zhang Chun Li | 2017 | Journal of Energy Chemistry2017，26，5： | 9 |
| 7 | Decomposition behavior of CaSO_4 during potassium extraction from a potash feldspar-CaSO_4 binary system by calcination显示文摘The extraction of potassium from a tablet mixture of K-feldspar ore and CaSO_4by roasting was studied with a focus on the effects of the decomposition behavior of CaSO_4on the potassium extraction process.The roasted slags were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),energy-dispersive X-ray spectroscopy,and thermogravimetric(TG)analysis.The XRD analysis revealed that hydrosoluble mischcrystal K_2Ca_2(SO_4)_3was obtained by ion exchange of Ca^(2+)in CaSO_4and K^+in KAlSi_3O_8.Meanwhile,the intermediate product,SiO_2,separated from KAl Si_3O_8and reacted with CaSO_4to decompose CaSO_4.The SEM results showed that some blowholes emerged on the surface of the CaSO_4particles when they reacted with SiO_2at 1200°C,which indicates that SO_2and O_2gases were released from CaSO_4.The TG curves displayed that pure CaSO_4could not be decomposed below 1200°C,while the mixture of K-feldspar ore and CaSO_4began to lose weight at 1000°C.The extraction rate of potassium and decomposition rate of CaSO_4were 62%and 44%,respectively,at a mass ratio of CaSO_4to K-feldspar ore of 3:1,temperature of 1200°C,tablet-forming pressure of6 MPa,and roasting time of 2 h.The decomposition of CaSO_4reduced the potassium extraction rate;therefore,the required amount of CaSO_4was more than the theoretical amount.However,excess CaSO_4was also undesirable for the potassium extraction reaction because a massive amount of SO_2and O_2gas were derived from the decomposition of CaSO_4,which provided poor contact between the reactants.The SO_2released from CaSO_4decomposition can be effectively recycled. | Li Lü Chun Li Guoquan Zhang Xiaowei Hu Bin Liang | 2018 | Chinese Journal of Chemical Engineering2018，26，4： | 7 |
| 8 | The magnetic properties of Serbian loess and its environmental significance显示文摘This paper reports a loess-paleosol sequence located in the Danube River basin,Serbia,which formed at least since the latest part of the early Pleistocene,and before the paleomagnetic B/M boundary.Various magnetic parameters of the Serbian V-L1-V-S4 loess-paleosol sequence have been measured and analyzed in the Titel Loess Plateau.These parameters show a very similar magnetic behavior compared with that of the Chinese loess.There is a general positive relationship between magnetic susceptibility() and pedogenesis.The main contributors to are the magnetic grains of SP(superparamagnetic) and SD(single domain) magnetic domains,while MD(multi domain) contributes only a small percentage.The difference in between loess and paleosol mainly is caused by pedogenesis.The very fine magnetic minerals increase gradually with increasing soil development(from loess to soil),and they lead to higher.The thermomagnetic curves show thatmagnetic minerals in the loess layers are magnetite and maghemite,both providing a major contribution to.In contrast the paleosol layers mainly are composed of magnetite,with almost no or a very small amount of maghemite,as implied by a reversible thermomagnetic behavior.This indicates that pedogenic conditions during V-S3 and V-S4 strong soil development have resulted in maghemite that is no longer stable,and has been resolved or converted to other stable phase minerals.This likely indicates that soil moisture during V-S3 and V-S4 development exceeded a critical condition of maghemite stability. | LIU XiuMing LIU Zhi Lü Bin MARKOVI S B CHEN JiaSheng GUO Hui MA MingMing ZHAO GuoYong FENG Hua | 2013 | Chinese Science Bulletin2013，58，3： | 7 |
| 9 | Surgical treatment for primary angle closure-glaucoma: a Meta analysis显示文摘AIM:To evaluate the efficacy and safety of trabeculectomy,phacotrabeculectomy plus intraocular lens implantation(phacotrab+IOL group) and phacoemulsification with IOL(phaco+IOL) in primary angle-closure glaucoma(PACG).METHODS: It was a systematic review and meta-analysis,randomized controlled trials(RCT) and clinical controlled trials(CCT) were collected through electronic searches of the Cochrane Library,PubMed,EMbase,Wanfang Database online,Chinese journal Full-text Database,Chinese Scientific Journals Full-text Database (from the date of building the database to October 2010) We also checked the bibliographies of retrieved articles.All the related data that matched our standards were abstracted.The quality of included trials was evaluated according to the Dutch Cochrane Centre.RevMan 5.0 software was used for Meta-analysis.RESULTS: A total of 5 RCT and 11 CCT involving 1495 eyes were included.The results of meta-analysis showed that phacotrab+IOL group was superior than trabeculectomy(trab group) (MD -3.93,95%CI [-7.31,-0.54]) which was also superior than phaco+IOL group(MD 0.52,95%CI [0.10,0.95]) in decreasing Intraocular Pressure(IOP).Phacotrab group(MD -1.45,95%CI [-1.68,-1.22])and phaco group (MD-1.12,95%CI [-1.87,-0.37])are both deeper than trab group in the anterior chamber depth.In increasing the coefficient of outflow facility of aqueous humor(C values) there was no statistical difference in the three groups.And there was no statistical difference between phacotrab groups and phaco groups in visual acuity but phacotrab group was superior than phaco group (MD 1.07,95%CI [0.73,1.40])in the use of IOP-lowering drugs.There was no statistical difference among three groups.CONCLUSION: Current evidence suggests that phacotrab+ IOL group was superior than trab group which was also superior than phaco+IOL group in decreasing IOP.Phacotrab group and phaco group are both deeper than trab group in the anterior chamber depth.Phacotrab group was superior than phaco group in the use of IOP-lowering drugs. | Bo-Lin Deng, Jing Tian | 2011 | International Journal of Ophthalmology(English edition)2011，4，3： | 5 |
| 10 | Geographic scenario:a possible foundation for further development of virtual geographic environments显示文摘It has been two decades since virtual geographic environments(VGEs)were initially proposed.While relevant theories and technologies are evolving,data organization models have always been the foundation of VGE development,and they require further exploration.Based on the comprehensive consideration of the characteristics of VGEs,geographic scene is proposed to organize geographic information and data.We empirically find that geographic scene provides a suitable organization schema to support geo-visualization,geo-simulation,and geo-collaboration.To systematically investigate the concept and method of geographic scene,Geographic Scenario is proposed as the theory on developing geographic scene,and corresponding key issues of the Geographic Scenario are illustrated in this article.Prospects of the proposed method are discussed with the hope of informing future studies of VGEs. | Guonian Lü Min Chen Linwang Yuan Liangchen Zhou Yongning Wen Mingguan Wu Bin Hu Zhaoyuan Yu Songshan Yue Yehua Sheng | 2018 | International Journal of Digital Earth2018，11，4： | 4 |
| 11 | Spacelike Mobius Hypersurfaces in Four Dimensional Lorentzian Space Form显示文摘In this paper, we first set up an alternative fundamental theory of M?bius geometry for any umbilic-free spacelike hypersurfaces in four dimensional Lorentzian space form, and prove the hypersurfaces can be determined completely by a system consisting of a function W and a tangent frame {E_i}. Then we give a complete classification for spacelike M?bius homogeneous hypersurfaces in four dimensional Lorentzian space form. They are either M?bius equivalent to spacelike Dupin hypersurfaces or to some cylinders constructed from logarithmic curves and hyperbolic logarithmic spirals. Some of them have parallel para-Blaschke tensors with non-vanishing M?bius form. | Yan Bin LIN Ying Lü Chang Ping WANG | 2019 | Acta Mathematica Sinica,English Series2019，35，4： | 4 |
| 12 | Effect of Tongxieyaofang decoction on colonic mucosal protein expression profiles in rats with visceral hypersensitivity显示文摘OBJECTIVE: To explore the underlying mechanism of action of Tongxieyaofang decoction in rats with visceral hypersensitivity using proteomics technology.METHODS: Twenty-four female Sprague-Dawley rats were randomly divided into three groups: control group, irritable bowel syndrome(IBS) group and Tongxieyaofang treatment group. An IBS model, characterized as visceral hypersensitivity, was established using the odour of mothballs as conditional stimulation and colorectal distension combined with classic physical restraint as non-conditional stimulation. Rats were intragastrically treated with Tongxieyaofang(2 or 4 m L · kg^(-1)· d^(-1))for 4 weeks. On the 45 th day, the rats were dissected and the colonic mucosal proteins were extracted. Differential protein spots were screened by fluorescent two-dimensional differential gel electrophoresis(2 D-DIGE), and identified by matrix-assisted laser desorption/ionisation time of flight mass spectrometry(MALDI-TOF-MS). Western blotting experiments were performed to verify the changes observed in 2 D-DIGE and MALDI-TOF-MS.RESULTS: It was found that the visceral sensitivity of rats in the Tongxieyaofang treatment group(4 m L/kg) was lower than that in the IBS group(P <0.01). Sixty-one protein spots were differentially expressed between the IBS group and the Tongxieyaofang treatment group. Of these, 23 spots were upregulated in the Tongxieyaofang treatment group, while 38 spots were downregulated. Three specific proteins were successfully identified from the five protein spots with the most obvious changes. The two upregulated proteins were transgelin(TAGLN) and acetaldehyde dehydrogenase 2(Aldh2) and the downregulated protein was cytokeratin 8(CK8).CONCLUSION: Tongxieyaofang can dose-dependently ameliorate visceral hypersensitivity in rats and the mechanism of action may involve the upregulation of TAGLN and Aldh2 and the downregulation of CK8. | Lin Yongjun Ding Ying Lü Bin Liu Nan | 2020 | Journal of Traditional Chinese Medicine2020，40，2： | 4 |
| 13 | Preparation of synthetic rutile via selective sulfation of ilmenite with(NH4)2SO4 followed by targeted removal of impurities显示文摘This paper describes a novel, facile chemical pathway for preparing synthetic rutile from ilmenite. The pathway consists of two primary units, i.e., selectively sulfating ilmenite, which was realized via roasting ilmenite with(NH_4)_2SO_4followed by selective thermal decomposition of the sulfated ilmenite, and targeted leaching of the impurities. The effects of the process parameters were systematically investigated. The results showed that the optimum sulfation conditions were a mass ratio of(NH_4)_2SO_4to ilmenite of 14, temperature of 360 °C, and time of 120 min with a sulfation ratio of ~ 95%. The optimum thermal decomposition conditions were480 °C in N_2 atmosphere, and nearly all Ti OSO_4 were decomposed with co-decomposition of Fe SO_4 of 23%. For acid leaching, the optimum conditions were 2.5 wt% HCl, 98 °C and 120 min. Under those conditions, 94.2% iron was removed with a Ti O_2 dissolution loss b 1%. For alkali leaching, 67% Si O_2 was removed in 5 wt% Na OH at102 °C for 1 h. A synthetic rutile with a Ti O_2 content N 92 wt% and total Mg O + Ca O b 1.5 wt% was obtained.Based on these results, a schematic flowsheet was proposed. Additionally, it was found that the decomposition of Fe SO_4 mixed with Ti OSO_4 under N_2was inhibited due to its oxidation to a higher thermal stability Fe_2(SO_4)_3by oxygen emitted from the decomposition of Ti OSO_4. At the same time, Ti OSO_4 decomposition was promoted due to the immediate in situ consumption of oxygen by Fe SO_4. The synergetic effect might be responsible for the enhanced selectivity of sulfated ilmenite thermal decomposition. | Weizao Liu Xiaomei Wang Zhenpu Lu Hairong Yue Bin Liang Li Lü Chun Li | 2017 | Chinese Journal of Chemical Engineering2017，25，6： | 3 |
| 14 | Initial Rifting Process and Dynamics Mechanism of Huaguang Sag: Evidence from a Numerical Modeling Method显示文摘Huaguang Sag is located in the deep seawater area of Qiongdongnan Basin, and its tectonic position belongs to the intersection of NE-trending, SN-trending and NW-trending tectonic systems in the continental margin of the Northwest South China Sea. To investigate the initial rifting process and further more the dynamics mechanism of Huaguang Sag, this paper sets up the structure model of basement which mainly makes up with several depression-controlling faults, and simulates the initial rifting process of Huaguang Sag by the FLAC software. The simulation results show that only affected by the S-N trending extensional stress, the rifting center appears in northern boundary basement faults(two NEE-trending and NWW-trending faults) of Huaguang Sag while does not take place at the NNE-trending and NE-trending basement fault zone in the middle sag, and doesn't match the current pattern that the basement fault plays a main role in controlling the sediment. In the other case, affected by the S-N trending and E-W trending extensional stress at the same time, the areas of the northern boundary faults zone and internal NNE-trending basement faults zone come to be rifting center quickly, the sedimentary is controlled by the main basement faults to different degrees, and is consistent with the tectonic-sedimentary framework of Huaguang Sag which obtained by the data of geophysical interpretation. In combination with the analysis of regional tectonic background, the paper proposes that two remote tectonic effects occurred by the collision of India-Eurasian Plate: One remote effect was the rotational extrusion of Indo China Block, which led to form a series of NE-trending and NNE-trending basement faults, as well as the E-W trending tensile stress field in Huaguang Sag. The other remote effect was that the deep mantle material of South China Block flowed southward, which resulted in the S-N trending extensional rifting of the lithosphere in northern South China Sea, and finally formed a series of EW-trending and NEE-trending basement faults and the S-N trending tensile stress field in Huaguang Sag. Affected by the above tensile stress fields and the basement faults, the initial rifting occurred in E-W and nearly S-N directions along the pre-existed basement faults(the weak structural zones) in Huaguang Sag. | Zhourong Cai Bin Xia Baofeng Lü Weiqi Yao Jianfeng Li | 2015 | Journal of Earth Science2015，26，3： | 3 |
| 15 | Study on reactions of gaseous P_2O_5 with Ca_3(PO_4)_2 and SiO_2 during a rotary kiln process for phosphoric acid production显示文摘In a rotary kiln process for phosphoric acid production,the reaction between gaseous phosphorus pentoxide(P_2O_5)and phosphate ore and silica contained in feed balls(the so-called P_2O_5'absorption')not only reduces phosphorous recovery but also generates a large amount of low melting-point side products.The products may give rise to formation of kiln ring,which interferes with kiln operation performance.In this study,the reactions of gaseous P_2O_5with solid calcium phosphate(Ca_3(PO_4)_2),silica(SiO_2)and their mixture,respectively,were investigated via combined chemical analysis and various characterizations comprised of X-ray diffraction(XRD),Fourier-transform infrared(FT-IR)spectroscopy,thermogravimetric analysis and differential scanning calorimeter(TG&DSC),and scanning electron microscopy and energy dispersive spectrometer(SEM&EDS).Attentions were focused on apparent morphology,phase transformation and thermal stability of the products of the P_2O_5'absorption'at different temperatures.The results show that the temperature significantly affected the'absorption'.The reaction between pure Ca_3(PO_4)_2 and P_2O_5 occurred at 500°C.Calcium metaphosphate(Ca(PO_3)_2)was the primary product at the temperatures≤900°C with its melting point≤900°C while calcium pyrophosphate(Ca_2P_2O_7)was obtained over 1000°C,which has a melting point≤1200°C.The'absorption'by pure SiO_2 started at 800°C and the most significant reaction occurred at 1000°C with formation of silicon pyrophosphate(SiP_2O_7)product of melting point≤1000°C.Using mixed Ca_3(PO_4)_2and SiO_2as raw material,the'absorption'by Ca_3(PO_4)_2 was enhanced due to existence of silica.At 600–700°C,silica was inert to P_2O_5and thus formed a porous structure in the raw material,which accelerated diffusion of gaseous P_2O_5inside the mixture.At higher temperatures,the combined'absorption'by calcium phosphate and reaction between silicon dioxide and the'absorption'product calcium pyrophosphate,reinforced the'absorption'by the mixture.Besides,it was found that both Ca(PO_3)_2and SiP_2O_7were unstable at high temperatures and would decompose to Ca_2P_2O_7and SiO_2,respectively,at over 1000°C and 1100°C with the release of gaseous P_2O_5at the same time. | Qiang Liu Weizao Liu Li Lü Ruhu Li Bin Liang Hairong Yue Shengwei Tang Chun Li | 2018 | Chinese Journal of Chemical Engineering2018，26，4： | 3 |
| 16 | Direct amination of benzene to aniline with several typical vanadium complexes显示文摘液体阶段到苯胺的苯的直接催化的胺化作用用一系列钒在醋酸水溶剂被执行(III, IV, V ) 有 N, O-ligands 或 O 的建筑群, O-ligands 作为催化剂和氢氧根胺水疗院氯化物作为 aminating 代理人。钒建筑群比 NaVO 3 或 VOSO 4 向苯胺的生产展出了许多更高的选择。在优化条件, 42.5% 的苯胺收益和有上面的一种高选择的 48 的一吨下面, 99.9% 用 0.2 mmol 被获得[VO (OAc )2] 作为催化剂。 | Yu Fen Lü Liang Fang Zhu Qiu Yuan Liu Bin Guo Xiao Ke Hu Chang Wei Hu | 2009 | Chinese Chemical Letters2009，20，2： | 2 |
| 17 | Arg462Gln and Asp541Glu polymorphisms in ribonuclease L and prostate cancer risk:a meta-analysis显示文摘Objective:The association between ribonuclease L(RNASEL)gene polymorphisms and prostate cancer risk has been widely reported,but the results of these studies remained controversial and underpowered.We performed a meta-analysis of 28 studies to evaluate the association between Arg462Gln and Asp541Glu polymorphisms in the RNASEL gene and prostate cancer risk.Methods:Odds ratios(ORs)with 95%confidence intervals(CIs) were estimated to assess the association between RNASEL polymorphisms and prostate cancer risk.Results:A significantly increased prostate cancer risk was found for the Arg462Gln polymorphism in Africans(Gln/Gln vs Arg/Arg:OR=2.50,95%CI=1.28-4.87;Gln/Gln vs Gln/Arg+Arg/Arg:OR=2.54,95%CI=1.30-4.95),but not in Europeans and Asians.Additionally,the Asp541Glu polymorphism was associated with increased total prostate cancer risk(Glu-allele vs Asp-allele:OR=1.04,95%CI=1.01-1.07;Glu/Glu vs Asp/Asp:OR=1.22,95%CI= 1.03-1.46;Glu/Glu vs Glu/Asp+Asp/Asp:OR=1.09,95%CI=1.02-1.16).In the stratified analysis for the Asp541Glu polymorphism,there was a significantly increased prostate cancer risk in Africans and Europeans,and in hospital-based prostate cancer cases.Conclusion:The meta-analysis results showed evidence that RNASEL Arg462Gln and Asp541Glu polymorphisms are associated with prostate cancer risk and could be low-penetrance prostate cancer susceptibility biomarkers. | Yuanyuan Mi Qianqian Yu Zhichao Min Bin Xu Lifeng Zhang Wei Zhang Ninghan Feng L ixin Hua | 2010 | The Journal of Biomedical Research2010，24，5： | 2 |
| 18 | Crustal S-wave velocity structure of the Yellowstone region using a seismic ambient noise method显示文摘The Yellowstone volcano is one of the largest active volcanoes in the world,and its potential hazards demand detailed seismological and geodetic studies.Previous studies with travel time tomography and receiver functions have revealed a low-velocity layer in the crust beneath the Yellowstone volcano,suggesting the presence of a magma chamber at depth.We use ambient seismic noise from regional seismic stations to retrieve short-period surface waves and then study the shallow shear velocity structure of the Yellowstone region by surface wave dispersion analysis.We first obtained a crustal model of the area outside of the Yellowstone volcano and then constructed an absolute shear wave velocity structure in combination with receiver function results for the crust beneath the Yellowstone volcano.The velocity model shows a low-velocity layer with shear velocity at around1.3 km/s,suggesting that a large-scale magma chamber exists at shallow levels within the crust of the Yellowstone volcanic region. | Yan Lü Sidao Ni Jun Xie Yingjie Xia Xiangfang Zeng Bin Liu | 2013 | Earthquake Science2013，26，5： | 2 |
| 19 | Androgens and esophageal cancer: What do we know?显示文摘Significant disparities exist between genders for the development and progression of several gastrointestinal(GI) diseases including cancer. Differences in incidence between men vs women for colon, gastric and hepatocellular cancers suggest a role for steroid sex hormones in regulation of GI carcinogenesis. Involvement of intrinsic gender-linked mechanisms is also possible for esophageal adenocarcinoma as its incidence is disproportionally high among men. However, the cause of the observed gender differences and the potential role of androgens in esophageal carcinogenesis remains unclear, even though the cancer-promoting role of androgen receptors(AR) shown in other cancers such as prostate and bladder suggests this aspect warrants exploration. Several studies have demonstrated expression of ARs in esophageal cancer. However, only one study has suggested a potential link between AR signaling and outcome- poorer prognosis. Two groups have analyzed data from cohorts with prostate cancer and one of these found a decreased incidence of esophageal squamous and adenocarcinoma after androgen deprivation therapy. However, very limited information is available about the effects of androgen and AR-initiated signaling on esophageal cancer cell growth in vitro and in vivo. Possible mechanisms for androgens/AR involvement in the regulation of esophageal cancer growth are considered, and the potential use of AR as a prognostic factor and clinical target is highlighted, although insufficient evidence is available to support clinical trials of novel therapies. As esophageal adenocarcinoma is a gender linked cancer with a large male predominance further studies are warranted to clarify the role of androgens and ARs in shaping intracellular signaling and genomic responses in esophageal cancer. | Olga A Sukocheva Bin Li Steven L Due Damian J Hussey David I Watson | 2015 | World Journal of Gastroenterology2015，21，20： | 2 |
| 20 | The removal of heavy metals from aqueous solutions by sawdust adsorption — removal of lead and comparison of its adsorption with copper显示文摘 | Bin Yu Y Zhang Alka Shukla Shyam S Shukla Kenneth L Dorris | 2001 | Journal of Hazardous Materials2001，，1： | 2 |
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