mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
香型优质杂交水稻宜香1577在福建上杭种植表现及其栽培技术

2006年晚季宜香1577在福建省上杭县临城镇、中都镇、湖洋乡作双季晚稻示范20.28 hm~2,表现出丰产稳产(平均单产8.1 t/hm~2,比汕优63增产5.4%)、米质优、株型适中、剑叶直立、长势繁茂、熟期转色好等优点.介绍了其示范表现及高产栽培技术要点.
制种生态环境及发芽条件对绵2优838种子发芽率的影响

选取4种不同的生态环境生产的绵2优838种子,用强氯精浸种后纸上培养、砂床培养和温水浸种后纸上培养(CK)3种方法检测其发芽率.结果表明,不同生态条件下生产的绵2优838种子的发芽率存在显著差异,湖南新田生产的种子发芽率高于四川生产的种子;不同发芽条件下种子的发芽率存在极显著差异,强氯精浸种能提高种子发芽率,砂培方法能大大降低不正常幼苗的数量而提高其发芽率.
Novel Design for High Speed and Resolution Delta-sigma A/D Converter

The delta-sigma converter is one of the high speed and resolution analog-to-digital modulators. Its implementation needs the low oversampling technique and the multi-bit D/A converter. The noise induced by the multi-bit D/A converter becomes one of the key factors deteriorating the signal-to-noise rate of the delta-sigma A/D converter. A novel structure with signal unity transfunction, dynamic element matching(DEM) and noise-shaping is discussed. The method is investigated to design converter based on the proposed structure. The behavior simulation indicates that the structure and the design method are feasible.
A new strain Acidithiobacillus albertensis BY-05 for  bioleaching of metal sulfides ores

An acidophilic, rod-shaped Gram-negative sulfur oxidizing strain BY-05 was isolated from an acid mine drainage of copper ore in Baiyin area, Gansu Province, China. Ultrastructural studies show that the isolate has a tuft of polar flagella and possesses sulfur granules with clear membrane adhering to the cell irmermembrane. Physiological study shows that this isolate grows autotrophically and aerobically by oxidizing S~0 and reduced inorganic sulfur compounds （S_2O_3~(2-), S_2O_4~(2-), S~(2-) and ZnS） with the optimum growth at pH 3.5-4.0 and at the temperature range of 25-30 ℃. The 16S rRNA gene sequence （DQ 423683） of strain BY-05 has 100% sequence similarity to that of Acidithiobacillus albertensis （DSM 14366）. So it is identified and named as A. albertensis BY-05. Bioleaching experiments with this new strain show that it can play an important role in recovery of metals from chalcopyrite and sphalerite.
Characteristics of graphite felt electrode electrochemically oxidized for  vanadium redox battery application

The graphite felt was oxidized at a positive electrode potential in sulfuric acid solution. The electrochemical performance of the treated graphite felt served as electrode for vanadium redox battery was investigated with FT-IR, SEM, XPS, BET, cyclic voltammetry and testing VRB system, respectively. The results show that the molar ratio of O to C increases from 0.085 to 0.15 due to the increase of-COOH functional groups during electrochemical oxidation treatment, and the GF surface is eroded by electrochemical oxidation, resulting in the surface area increase from 0.33 m~2/g to 0.49 m~2/g. The VRB with modified GF electrode exhibits excellent performance under a current density of 30 mA/cm~2. The average current efficiency reaches 94% and average voltage efficiency reaches 85%. The improvement of electrochemical activity for the electrode is ascribed to the increase of the number of -COOH group and the special surface of GF.
Formation and mechanical properties of bulk Cu-Ti-Zr-Ni metallic glasses with  high glass forming ability

Bulk amorphous Cu_(52.5)Ti_30Zrl_(1.5)Ni_6 and Cu_(53.1)Ti_(31.4)Zr_(9.5)Ni_6 alloys with a high glass forming ability can be quenched into single amorphous rods with a diameter of 5 mm, and exhibit a high fracture strength of 2 212 MPa and 2 184 MPa under compressive condition, respectively. The stress-strain curves show nearly 2% elastic strain limit, yet display no appreciable macroscopic plastic deformation prior to the catastrophic fracture due to highly localized shear bands. The present work shows clearly evidence of molten droplets besides well-developed vein patterns typical of bulk metallic glasses on the fracture surface, suggesting that localized melting induced by adiabatic heating may occur during the final failure event.
农业产业化经营发展战略探析

通过安阳市农业产业化经营对实现农业经济增长方式根本转变，加速农业现代化进程的实证分析，提出了农业产业化经营实践中凸显的一些困难和问题，针对安阳农业产业化经营发展的虫际情况提出了推进改革的对策措施。
吉林省九台市农村居民点用地整理研究

农村居民点整理工作是土地整理中非常重要的一项工作，针对九台市农村居民点用地的实际情况和存在的问题，分析了影响农村居民点整理潜力的因素，并对整理潜力进行了分级，根据各个潜力类型区的不同情况，提出不同的整理模式，对开展全国性农村居民点用地整理具有一定的示范意义。
玉林三黄鸡球虫病病情调查及其综合防治

通过疾病诊断和抽样调查等方法对玉林三黄鸡球虫病发病情况进行调查。结果发现，优质三黄肉鸡球虫病发病率较低，黑羽肉鸡比黄羽肉鸡高。发病日龄较早，而在50天后较少发病，死亡率较低；2，7月是玉林三黄鸡球虫病的高发期。分析了球虫病的发病原因与感染途径．并提出了三黄鸡球虫病的综合防治措施。
恒磁场处理柞蚕卵对柞蚕幼虫血淋巴蛋白含量的影响

在不同强度的磁场及不同处理时间条件下，研究了磁场对柞蚕幼虫期蛋白含量的影响。结果表明，磁场强度在100～700mT时，对蚕体的蛋白含量影响不大，但不同处理时间对蚕体蛋白含量的影响有明显差异。
促进江西农村剩余劳动力转移的职业教育对策

在分析近年来江西农村剩余劳动力转移存在问题的基础上，剖析了阻碍农村劳动力转移与培训的职业教育方面因素，进而提出了推动农村剩余劳动力有序转移的职业教育政策建议。
肥城市烟酒与食管病变关联的多项式logistic回归分析

1970～1974年调查发现肥城市为食管癌高发区[1],1970～1974、1985～1989、1990～1992、1997～1999年4个时期食管癌死亡率分别为63.19/10万(以下略去/10万)、71.68、66.87和82.33;标化死亡率(1964年中国人口标化)分别为45.37、46.67、51.21、46.32.该地区没有医学等外来因素的"干扰",近30年来食管癌死亡率呈平稳状态,为食管癌的病因学研究提供了非常好的基地[2].
Chemical and stable isotopic geochemical characteristics of ore-forming fluid of the Shizishan copper and gold ore-field, Tongling, China

Shizishan ore-field is a nonferrous and noble metal ore-field which is most rich in copper and gold. There are many types of fluid inclusions in minerals of the deposits. The homogeneous temperatures and the salinities of the fluid inclusions in main mineralization stages have wide ranges, while the different types of the fluid inclusions existed together and their homogeneous temperatures are almost identical in the same mineralization stage, which indicates that the ore-forming process has great relation with the fluid boiling. The gas and liquid chemical compositions and the carbon, hydrogen and oxygen isotopic compositions of the fluid inclusions show that the ore-forming fluids of copper-gold deposits have the same characteristics and evolution tendency, which reflects that the ore-forming material mainly came from the magmatism. The stratigraphic component and the meteoric water may mix in oreforming fluids in the later mineralization stages. Furthermore, with the fall of the ore-forming temperature the ratios of water and rock decreased. The characteristics of chemical composition and carbon isotopic composition of fluid inclusions indicate that CH4 may play an important role for separating copper and gold in the ore-forming process.
Fluid inclusion study of carbonatite dykes/veins and ore-hosted dolostone at the Bayan Obo ore deposit

Fluid inclusion study has been carried out for the carbonatite dykes/veins and the ore-hosted dolostone of the Bayan Obo superlarge REE-Fe-Nb deposit in order to provide the evidence and constraint for their origin. Based on the detailed geological observation and mineralogical investigation, the heating and cooling stage and laser Raman spectroscopy were mainly used for the laboratory work of this study. Following results have been obtained: (1) The discovery of melt and melt-fluid inclusions from carbonatite dykes/veins in the Dulahara and Jianshan Mountains, combined with the fine-grained (aplitic) texture of rocks, as well as the types and features of fluid inclusions such as CO_2 enrichment, higher homogenization temperature, provides a direct evidence for the magmatic origin of these dykes/veins. (2) The carbonatite dykes/veins distributed in two regions, nearby the axis of the Kuangou anticline and in the east to Bayan Obo town, mainly show coarse-grained texture. No melt inclusion was found, and the fluid inclusions possess features of less CO_2, lower homogenization temperature and higher salinity. They are tentatively identified as veins formed by some carbonate-rich hydrothermal solution. (3) Bedding carbonate layers/lens within the hanging wall and foot wall of ore-hosted dolostone, previously recognized as of magmatic origin, mainly composed by dolomite. The existence of single phase pure aqueous inclusions with very low homogenization temperature indicates their sedimentary origin. (4) The ore-hosted dolostone possesses apparent bedding and laminated structures. No melt inclusion was found, but, both single phase pure aqueous inclusions and CO_2bearing multi-phase fluid inclusions coexisted in dolostones. In the direction towards ore-bodies, the homogenization temperature and CO_2 contents of fluid inclusion show an increasing tendency. It indicates the sedimentary origin of dolostone superimposed by late fluid metasomatism.
Fluid inclusion anomalies as exploration guides for granite-hosted Sn-W mineralization:prospects for the future?

Studies of the distribution and abundance of fluid inclusions in granitic quartz associated with granite-hosted Sn-W mineralization of the British Isles reveal local and regional scale anomalies. At a sampling interval of c. 5 ～ 50m, inclusion abundances increase towards zones of vein and stockwork mineralization exemplified by case history examples from exploration prospects in the Mourne Mountains of Northern Ireland and the Carrock Fell mining district of northwestern England. These steam aureoles provide a greater exploration target than the zone of visible alteration and mineralization and the lithogeochemical halo. But it is important to link them to geochemical data on fluid inclusion compositions, such as the semi-quantitative data from decrepitation-linked, ICP-AES (D-ICP) analysis, to optimize their exploration potential. Regional scale fluid inclusion anomalies, based on sampling intervals of c. 2km from the Sn-W mineralized granites of southwest England also broadly correlate with zones of intense mineralization in some areas.Regional-scale D-ICP analyses of quartz from SW England granites did not provide any convincing regional scale anomalies linked to mineralization except for positive boron anomalies around the centrally-mineralized Birch Tor area of the Dartmoor granite. Follow-up D-ICP analysis of quartz from stream sediments from this area, however, could be used to discriminate between samples related to mineralization from those draining unmineralized areas, using multivariate statistical analysis. At the present stage of development, the main contribution of fluid inclusion studies to mineral exploration is mostly limited to the conceptual stage where they continue to contribute to ore genetic theory and models. Costs and lack of knowledge transfer between research scientists and mineral explorationists limit their direct use during regional and target selection stages of exploration. Analysis of steam sediment quartz, using the more sensitive ICP-MS technique as a variant of the D-ICP method, appears to offer the greatest potential for future development as an exploration tool.
Asian Current Research On Fluid Inclusions: An introduction

ACROFI, abbreviation of the Asian Current Research on Fluid Inclusions, is a parallel of ECROFI and PACROFI. The first conference of ACROFI (ACROFI-I) was held at Nanjing University, China on 26 ～28 May 2006. ACROFI was designed as a biennial conference and aimed at providing an international forum for the exchange of latest researches and new ideas of geoscientis from academy, government and industry form Asian countries and other nations focusing on studies of both fluid and silicate inclusions.
Acoustic decrepitation as a means of rapidly determining CO_2 (and other gas) contents in fluid inclusions and its use in exploration, with examples from gold mines in the Shandong and Hebei provinces, China

The acoustic decrepitation method heats a small monomineralic sample and counts pressure impulses as the inclusions burst when they develop high internal pressures. For aqueous fluids, the decrepitation temperature is correlated with the homogenisation temperature, but gas rich fluids give a distinct and characteristic low temperature decrepitation peak which can be used to recognize gas rich fluid inclusions. This information is useful in exploration for Au deposits, which are frequently associated with CO_2 rich and sometimes CH_4 rich fluids.This distinctive decrepitation occurs because the CO_2 rich inclusion fluids expand according to the gas law and develop internal pressures high enough to burst the host mineral grain at temperatures well below their homogenisation temperatures. In contrast, aqueous fluids condense to a liquid and vapour phase during post-entrapment cooling. Upon subsequent heating their internal pressures do not increase significantly until after homogenisation to a single phase occurs and hence they do not decrepitate "prematurely" as gas rich inclusions do.This behaviour is usually regarded as an annoyance in conventional microthermometric homogenisation studies, but can readily be used as an exploration aid to find mineralisation deposited from such gas rich fluids. Decrepitation results on samples from Cowra Ck, NSW, Australia, which have also been microthermometrically measured for CO_2 content, show that amounts of less than 5 mole % CO_2are easily distinguished by decrepitation and amounts as low as 1 mole % CO_2 may be determinable.Examples of the use of acoustic decrepitation in the study of 6 gold mines in the Shandong and Hebei provinces of China are discussed.
左心室炎性假瘤1例

病人 女，47岁。胸闷，气急，胸痛1年余，晕厥4次。在外院反复住院，诊断不明转入我院。查体：心界范围正常，各瓣膜听诊区未闻及杂音。超声心动图示左室腔内实质性占位（图1）。
红头阿扁叶蜂的重要天敌——厚角跃姬蜂

报道在辽宁海城地区寄生红头阿扁叶蜂Acantholyda erythrocephala(Linnaeus)的姬蜂科1中国新记录属、新记录种:厚角跃姬蜂Xenoschesis crassicornis Uchida,1928.
松嫩平原重要湿地恢复研究进展

松嫩平原位于中国东北北部，属半湿润半干旱气候区，主要由松花江、嫩江冲积而成，湿地分布广泛。在平原西部分布有扎龙、向海、科尔沁、莫莫格等多个重要的国家级湿地自然保护区，这些湿地在均化洪水、调节区域气候、净化水质、提供珍稀物种栖息地等方面发挥着重要作用。近年来，湿地生态系统结构受到不同程度的破坏，湿地退化，生态功能趋于下降。
PVA-Based Proton Conductors and Zn+ZnSO_4· 7H_2O/PVA-NH_4NO_3-H_3PO_4/MnO_2 Electrochemical Cells

Results PVA - based proton conductors were prepared by the solution cast technique.The system 80 wt.% PVA - 20 wt.% NH4NO3 exhibited a maximum room temperature conductivity of 8.29×10-7 S·cm-1.The addition of 40 wt.% propylene carbonate (PC) increased the conductivity to 6.83×10-5 S·cm-1.With addition of 50 wt.% EC the conductivity was observed to increase to 1.19×10-5 S·cm-1.These results infer that PC and EC are equally strong in enhancing the conductivity.The maximum room temperature conductivity for the dual proton donor electrolyte system was obtained when 30 wt.% H3PO4 (of 85% strength) was added to the 80 wt.% PVA -20 wt.% NH4NO3 system.The conductivity was 2.67×10-4 S·cm-1.The best conducting sample was used as an electrolyte in Zn+ZnSO4.7 H2O/MnO2 cell.The OCV was monitored for 24 hours and showed that the voltage decreases by about 8% from the initial voltage.See Fig.1 and Fig.2.
Green Synthesis of Wax Ester by Immobilized Lipase

Results Enzyme catalysis is most attractive for the synthesis and modification of biologically relevant classes of fine organic compounds, which are difficult to prepare and to handle by conventional means[1]. In this study, commercial immobilized lipase from Candida antarctica (Novozym 435) was used in the preparation of fine organic compound with excellent properties and application as raw material for cosmetic formulation - oleyl palmitate. The effect of various reaction parameters were optimized conventionally to obtain a high yield of liquid wax ester. The optimum condition to produce oleyl palmitate was reaction time (RT),180 min; temperature (T),50 ℃; amount of enzyme (E), 0.3 g; molar ratio of substrate (N), 2∶1 and organic solvent of log P ≥2.5. Analysis of yield showed that at optimum condition, >90% of oleyl palmitate was produced. The product was then subjected to characterization using Fourier-tranform infrared (FT-IR) spectrophotometer to ensure purity.
Triphosgene as an Efficient and Electrophilic Reagent for the One-pot Synthesis of Sulfonylsemicarbazids

Results Sulfonylsemicarbazide derivatives are important compounds as blowing agents in cellular rubber and plastics[1]. Different methods for the preparation of these compounds are reported. For example, sulfonylsemicarbazides are prepared by reaction of sulfinic acid salt with azodicarbonamide in water[2] and reaction of sulfonylchloride with semicarbazide[3-4]. In these methods the yields of products are not high[3-4], the solvent such as pyridine is toxic and also the sulfinic acid salt as starting material is not commercially available[2]. Recently, triphosgene [bis(trichloromethyl)carbonate], a crystalline solid which can be easily handled, was reported as a safe stable reagent[5]. It was successfully utilized to the synthesis of large variety of organic compounds[6].
Study on the Synthesis of Octyl Acetate by Phosphotungstate Heteropolyacid with Keggin Structure

Results Octyl Acetate is an important chemical material.It is widely used as solvent in many industries,such as plasterer,artificial leather,and lacquer varnish,spice and medicine industries.At the present time,it is prepared with acetic acid and 1-octanol in industry,by using sulfuric acid as the catalyst.This technique has many shortcomings,which include erosion of facility,many side reactions and difficulties of post-treatment.The most severe problem is its pollution to the environment[1-2],so this technique should be forbidden.Those researches into etherification catalysis by solid acids have been carried out in research years for overcoming the weakness.Among these,great importance has been attached to support heteropolyacid by more and more researchers[3-4].
Catalytically Active Metal Nanoclusters Inside Cross-linked Functional Polymers:An Overview

Results Metal (0) nanoclusters (MNs), "strange morsels of matter"[1], are nanosized systems that are crucial components of industrially relevant catalysts (e. g. NH3 synthesis, catalytic reforming of alkanes, etc.). In recent years MNs have attracted an unprecedented attention among researchers acting in University, Scheme 1 Graphical model for the generation of size-controlled Pd0 nanoclusters inside metallated resins.a) PdⅡ is homogeneously dispersed inside the polymerGovernmental Institutions and Industry[2] and when MNs are to be utilized for catalytic purposes, their dispersion onto suitable supports is mandatory. We have started in the early nineties a long-prospects project aimed at supporting the choice of employing cross-linked functional polymers as supports of M0 nanoclusters to give M0/CFPs catalysts suitable to be utilized in the liquid phase (Scheme 1[3]). The major prospects offered by these catalysts are a) facile preparation, b) multi-functionality (exemplified by the current industrial synthesis of methyl isobutyl ketone from acetone and dihydrogen), c) re-usability, d) lack of pyrophoricity, e) easiness in obtaining polymetallic nanoclusters or nanoaggregates[2], f) reasonable chemical, thermal and mechanical stability[2]. A thorough account on the synthesis, chemistry and catalytic activity of M0/CFPs materials is available in Ref.[2].
Dendritic Liquid Crystals:Self-organization and Nuclear Magnetic Relaxation Investigation of Their Molecular Dynamics

Results Liquid crystalline dendrimers and structurally related multipodes are supermolecules consisting of an amorphous hyper-branched core at the periphery of which are attached mesogenic groups capable of self-organization.Two opposite tendencies compete in these systems: the internal dendrimer tends to adopt a pseudo-spherical architecture that has a disordering influence on the packing of the mesogenic parts whose tend to self-organize into partially ordered structures.These kinds of systems show a rich variety of mesophases depending on the architecture of the hyper-branched part and the chemical structure of the mesogenic units.
The Influence of Pore Structures and Degree of Cross-Linking on Catalytic Properties of Aminomethyl Polystyrene Resin Supported Dendritic Copper Complexes

Introduction Immobilization of homogeneous catalysts onto polymer supports through covalent attachment has received wide attention because these materials offer advantage features of heterogeneous catalysis to homogeneous systems.The polymer-supported catalysts enhance their thermal stability,selectivity,recyclability and easy separation from reaction products leading to the operationally flexible[1-2].Such behaviour prompted us to know the effect of pore structures of polymer supporters on catalytic properties of polymer supported complexes.
Development of Oxide Ceramics for Application in Solid Oxide Fuel Cells

Results Solid oxide fuel cells (SOFC) are ceramic fuel cells that convert chemical into electrical energy in a temperature region between 650 ℃ and 1 000 ℃.Systems are currently under development for a variety of applications e.g. for both small and large scale stationary combined heat and power systems but also for the supply of electrical energy in the automotive area. The current objectives in the development of SOFCs is to lower the operating temperature from 850 ℃ down to below 750 ℃ in order to improve durability and reduce costs of the SOFC stack.
Quaternary Ammonium Ionic Liquids as a Less Flammable Electrolyte for Lithium Batteries

Results Less-flammability is one of the most valuable properties of ionic liquids (ILs) comprised of perfluoroanions such as BF-4,TFSI-([(CF3SO2)2N]-).Recently,such a unique liquid has been expected to use as an electrolyte in order to improve thermal stability and longevity of a lithium secondary battery,which have been increasingly required for an application especially to an electric vehicle and a hybrid car.We previously reported that PI13[TFSI] (PI13: N-methyl-N-propylpiperidinium) could be used as a Li/LiCoO2 cell without any additives due to the large electrochemical window[1]. More recently,we also demonstrated that PI13[TFSI] with Li[TFSI] did not significantly react with active battery components such as a charged LiCoO2 and Li metal at 300 ℃[2]. However,the high viscosity of such aliphatic ammonium based ILs did not allow us to charge and discharge a lithium battery with a practically high current density.In this study,we would like to show our approach to decrease both the viscosity and melting point of ILs comprising aliphatic quaternary ammonium salts[3-5].
Superhydrophobicity on Micro-and Nanostructured Polyolefin Surfaces:an Experimental and Theoretical Study

Results Simultaneous micro-and nanostructuring was prepared on polyolefin surfaces by injection molding.The molds were made of electropolished aluminum foil where the micropatterns were structured with a custom made robot.Nanopatterns were subsequently created on the molds by oxidizing the aluminum surface electrochemically in polyprotic acid.The preparation technique allowed simultaneous control of the dimensions of the micro-and nanostructures.Structuring has a remarkable effect on the contact angle between the polyolefin and water.With optimized microstructure covered with nanostructure the static contact angle between polypropylene and water was found to be 165°.The sliding angle of about 2.5° proved the superhydrophobic state[1]. Molecular dynamics simulations were used to study the effect of periodic roughness of polyethylene on the hydrophobicity.Nanoscale pillars of different lateral dimensions and heights were derived from flat crystalline surfaces,and the results of simulations on the structured surfaces were compared with theoretical predictions of the Wenzel and Cassie equations~[2-3].
Nanostructured Functional Thermoplastic Polymeric Materials Based on the Molecular Control of the Blending

Results The development of the concepts of nanotechnology has given an important impact on the design of new polymer based materials which are in most cases characterized by a multiphase morphology. When at least one phase has nanometric dimension(s) the system can be considered as a nanocomposite where the interface is not only determining for the adhesion but also may play a role in some bulk properties. Indeed in nanostructured multiphase solids the interface is significant as a bulk component. Therefore the basic driving force necessary to reach such unique morphology is derived from the proper molecular design of the molecular functionality which can provide interphase interactions.