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Boron Application Improves Growth,Yield and Net Economic Return of Rice

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Rice science 2012年第3期19卷 259-262页

作者： mubshar HUSSAIN m.Ayaz KHAN m.Bismillah KHAN muhammad FAROOQ Shahid FAROOQ University College of Agriculture Bahauddin Zakariya University Department of Agronomy University of Agriculture

A field trial was conducted to evaluate the role of boron （B） application at different growth stages in improving the growth,yield and net economic return of rice at farmer＇s fields during summer season,*** was soil applied （1.5 kg/hm2） at the transplanting,tillering,flowering and grain formation stages of rice;foliar applied （1.5% B solution） at the tillering,flowering and grain formation stages of rice,and dipped seedling roots in 1.5% B solution before transplanting;while control plots did not apply any *** application （except dipping of seedling roots in B solution,which caused toxicity and reduced the number of tillers and straw yield than control） substantially improved the rice growth and ***,soil application was better in improving the number of grains per panicle,1000-grain weight,grain yield,harvest index,net economic income and ratio of benefit to cost compared with the rest of ***,for improving rice performance and maximizing the net economic returns,B might be applied as soil application at flowering.

关键词： boron application economics rice yield

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Corex和Finex工艺的发展及现状

Corex和Finex工艺的发展及现状

Propagation of Low Temperature-Adapted Hepatitis A Virus in BSC-1 Cell Culture

2007中国钢铁年会

作者： C.Bhm D.Siuka J.Schenk J.Kriechmair 西门子奥钢联金属技术有限公司

中国宝钢集团浦东钢铁公司签订了建设一座年产能力为150万 t 铁水的COREXC-3000厂的合同,这是 COREX 技术发展的一座新的里程碑。这一型号是现有 COREX 生产设备的升级,充分借鉴了现有生产厂的经验。原材料方面的变化(焦炭、焦煤、热力... 详细信息

中国宝钢集团浦东钢铁公司签订了建设一座年产能力为150万 t 铁水的COREXC-3000厂的合同,这是 COREX 技术发展的一座新的里程碑。这一型号是现有 COREX 生产设备的升级,充分借鉴了现有生产厂的经验。原材料方面的变化(焦炭、焦煤、热力煤等的价格),能源(天然气、电力等等)成本的普遍上涨,再加上操作方面积累的宝贵经验,这些都使得现在有必要对 COREX 技术和高炉技术进行认真的分析比较。另外一项新技术 FINEX也有新发展。目前,FINEX 示范厂正在运行,年产能力为150万 t 铁水的 FINEX 1．5m 厂正在浦项钢铁公司的浦项厂进行建设。本文的重点之一是描述 COREX 技术的发展,介绍 COREX 生产厂的现状,展示 COREX 工艺的新进展和特点;另外一个重点是介绍 FINEX 工艺的现状和进一步发展的方向。

关键词：铁水炼铁 COREX FINEX 西门子奥钢联浦项钢铁公司

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中国医科大学学报 1989年第S2期18卷 54-59页

作者：王兆荃 Stanley m Lemon Infectious Disease Research Unit The Third Affiliated Hospital China Medical University Division of Infectious Diseases University of North Carolina USA.

Hepatitis A virus, hm-175 strain, adapted to low temperature was cultivated in BSC-1 cell *** of the virus was detected by radioimmunoassay(RIA), radioimmunofocus assay (RIFA) and dot blot hybridization. The results showed that, of the 7 low temperature-adapted(LTA) strains studied, strain E, F and D gave the highest titer in BSC-1 cell culture. This culture system was proved to be suitable for the study of the characteristic of temperature mutants of HAV.

关键词： titer Replication adapted cultivated supernatant supplemented enterovirus instead labeled elevated

Phosphorus export by runoff from agricultural field plots with different crop cover in Lake Taihu watershed

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Journal of Environmental Sciences 2001年第4期13卷 502-507页

作者： Yan, W.-j. Huang, m.-x. Zhang, S. Tang, Y.-j. Dept. of Envrn. Biogeochemistry Inst.Geographic Sci./Nat. Rsrc. Res. Chinese Academy of Sciences Beijing 100101 China

Runoff and soil losses from agricultural fields are investigated as major nonpoint sources of phosphorus (P) entering lakes of Eastern China. There is relatively little information on P transport from ricefield and cropland of Lake Taihu watershed in Eastern China. Soil and P in surface runoff from a series of plots in the watershed were evaluated under simulated rainfall conditions. The objectives of this study were to evaluate the effects of crop cover, slope, and fertilizer application on P concentrations in surface runoff and eroded soil. Accumulated sediment yields varied from 7.1 to 300 g/m2 for croplands, depending on management practices. For all experiment plots, weighted average concentrations of total-P (TP), dissolved P (DP) and particulate P (PP) are much higher than 0.02 mg/L, the limiting concentration for lake water. This result showed the potential contamination of lake water from agricultural surface runoff. Accumulated TP losses were 3.8 and 18.8 mg/m2 for ricefield and cropland, respectively. The estimated annual loss of TP was 0.74 kg/(hm2 · a) for cropland. most of P loss is in the PP form, which accounts for more than 90% of TP loss for cropland.

关键词： Concentration (process) Crops Lakes Phosphorus Sediments Soils Watersheds

Short-and long-term behaviors of drifts in the Callovo-Oxfordian claystone at the meuse/Haute-marne Underground Research Laboratory

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Journal of Rock mechanics and Geotechnical Engineering 2013年第3期5卷 221-230页

作者： G.Armand A.Noiret J.Zghondi D.m.Seyedi ANDRA R&D Meuse/Haute-Marne Underground Research Laboratory ANDRA R&D

Since 2000, the French National Radioactive Waste management Agency （ANDRA） has been constructing an Underground Research Laboratory （URL） at Bure （east of the Paris Basin） to perform experiments in order to obtain in situ data necessary to demonstrate the feasibility of geological repository in the Callovo- Oxfordian claystone. An important experimental program is planned to characterize the response of the rock to different drift construction methods, Before 2008, at the main level of the laboratory, most of the drifts were excavated using pneumatic hammer and supported with rock bolts, sliding steel arches and fiber shotcrete. Other techniques, such as road header techniques, stiff and flexible supports, have also been used to characterize their impacts. The drift network is developed following the in situ major stresses. The parallel drifts are separated enough so as they can be considered independently when their hydromechanical （hm） behaviors are compared. mine-by experiments have been performed to measure the hm response of the rock and the mechanical loading applied to the support system due to the digging and after excavation. Drifts exhibit extensional （mode I） and shear fractures （modes II and III） induced by excavation works. The extent of the induced fracture networks depends on the drift orientation versus the in situ stress field. This paper describes the drift convergence and deformation in the surrounding rock walls as function of time and the impact of different support methods on the rock mass behavior. An observation based method is finally applied to distinguish the instantaneous and time-dependent parts of the rock mass deformation around the drifts.

关键词： Field experiments Claystone Tunnel convergence Induced fractures Short- and long-term behaviors

CRISPR/Cas9-mediated genome editing reveals 12 testis-enriched genes dispensable for male fertility in mice

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Asian Journal of Andrology 2022年第3期24卷 266-272页

作者： Yuki Oyama Haruhiko miyata Keisuke Shimada Yoshitaka Fujihara Keizo Tokuhiro Thomas X Garcia martin m matzuk masahito Ikawa Graduate School of Pharmaceutical Sciences Osaka UniversitySuitaOsaka 565-0871Japan Department of Experimental Genome Research Research Institute for Microbial DiseasesOsaka UniversitySuitaOsaka 565-0871Japan Department of Bioscience and Genetics National Cerebral and Cardiovascular CenterSuitaOsaka 564-8565Japan Department of Genome Editing Institute of Biomedical ScienceKansai Medical UniversityHirakataOsaka 573-1191Japan Center for Drug Discovery Baylor College of MedicineHoustonTX 77030USA Department of Pathology and Immunology Baylor College of MedicineHoustonTX 77030USA Department of Biology and Biotechnology University of Houston-Clear LakeHoustonTX 77058USA The Institute of medical Science The University of TokyoMinato-kuTokyo 108-8639Japan

Gene expression analyses suggest that more than 1000–2000 genes are expressed predominantly in mouse and human *** functional analyses of hundreds of these genes have been performed,there are still many testis-enriched genes whose functions remain *** gene function using knockout(KO)mice is a powerful tool to discern if the gene of interest is essential for sperm formation,function,and male fertility in *** this study,we generated KO mice for 12 testis-enriched genes,1700057G04Rik,4921539E11Rik,4930558C23Rik,Cby2,Ldhal6b,Rasef,Slc25a2,Slc25a41,Smim8,Smim9,Tmem210,and Tomm20l,using the clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9(CRISPR/Cas9)*** designed two gRNAs for each gene to excise almost all the protein-coding regions to ensure that the deletions in these genes result in a null *** tests of KO mice reveal that these 12 genes are not essential for male fertility,at least when individually ablated,and not together with other potentially compensatory paralogous *** results could prevent other laboratories from expending duplicative effort generating KO mice,for which no apparent phenotype exists.

关键词： CRISPR/Cas9 knockout mice male infertility spermatozoa testis

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早产儿成年后的动态血压及其变异

中华高血压杂志 2015年第3期23卷 299-299页

作者： Sipola-Lepp?nen m Karvonen R Tikanm?ki m matinolli hm martikainen S Pesonen AK R?ikk?nen K J?rvelin mR Hovi P Eriksson JG V??r?sm?ki m Kajantie E 赵狄练桂丽

早产儿成年后血压高于足月产儿成年后的血压。许多研究针对早产,但很少研究评估作为心血管病独立危险因素的血压变异。该研究在42例孕早期（〈34周）早产青年成人,72例孕晚期（34～36周）早产及103例对照（≥37周）中探讨早产与24h动态... 详细信息

早产儿成年后血压高于足月产儿成年后的血压。许多研究针对早产,但很少研究评估作为心血管病独立危险因素的血压变异。该研究在42例孕早期（〈34周）早产青年成人,72例孕晚期（34～36周）早产及103例对照（≥37周）中探讨早产与24h动态血压的关系。72.4%的研究对象的睡眠经加速度传感器睡眠监测证实。

关键词： 24h动态血压血压变异早产儿成年独立危险因素加速度传感器睡眠监测心血管病

Simulating long-term effect of Hyrcanian forest loss on phosphorus loading at the sub-watershed level

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Journal of Arid Land 2018年第3期10卷 457-469页

作者： Fatemeh RAJAEI Abbas E SARI Abdolrassoul SALmANmAHINY Timothy O RANDHIR majid DELAVAR Reza D BEHROOZ Alireza m BAVANI Department of Environment Faculty of Natural Resources and Marine Science Tarbiat Modares University Department of Environmental Gorgan University of Agricultural Science & Natural Resources Department of Environmental Conservation University of Massachusetts Department of Water Resources Agriculture Faculty Tarbiat Modares University Department of Environmental Sciences Faculty of Natural Resources University of Zabol Department of Irrigation and Drainage Engineering Faculty of Abouraihan University of Tehran

Conversion of forest land to farmland in the Hyrcanian forest of northern Iran increases the nutrient input, especially the phosphorus（P） nutrient, thus impacting the water quality. modeling the effect of forest loss on surface water quality provides valuable information for forest management. This study predicts the future impacts of forest loss between 2010 and 2040 on P loading in the Tajan River watershed at the sub-watershed level. To understand drivers of the land cover, we used Land Change modeler（LCm） combining with the Soil Water Assessment Tool（SWAT） model to simulate the impacts of land use change on P loading. We characterized priority management areas for locating comprehensive and cost-effective management practices at the sub-watershed level. Results show that agricultural expansion has led to an intense deforestation. During the future period 2010–2040, forest area is expected to decrease by 34,739 hm^2. And the areas of pasture and agriculture are expected to increase by 7668 and 27,071 hm^2, respectively. In most sub-watersheds, P pollution will be intensified with the increase in deforestation by the year 2040. And the P concentration is expected to increase from 0.08 to 2.30 mg/L in all of sub-watersheds by the year 2040. It should be noted that the phosphorous concentration exceeds the American Public Health Association′s water quality standard of 0.2 mg/L for P in drinking water in both current and future scenarios in the Tajan River watershed. Only 30% of sub-watersheds will comply with the water quality standards by the year 2040. The finding of the present study highlights the importance of conserving forest area to maintain a stable water quality.

关键词： phosphorus land use change modeling forest loss prioritizing management area Tajan River Iran

Effect of icosahedral clusters on β-relaxations in metallic glasses

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Chinese Physics B 2017年第1期26卷 86-90页

作者： X Q Gao Y T Sun Z Wang m Z Li H Y Bai Institute of Physics Chinese Academy of Sciences Beijing 100190 China Department of Physics Renmin University of China Beijing 100872 China

The most pronounced β-relaxation was found in the Y-based binary metallic glasses（mGs）. The correlation betweenβ-relaxation and local atomic structure was studied. The dynamic mechanical measurements were performed for three chosen binary systems： Zr-, Ti-, and Y-based mGs. The experimental results show that, in each system,the larger negative enthalpy of mixing（？hm） between the component elements makes β-relaxation become more pronounced. The less negative value of ？hm facilitates the formation of icosahedral clusters, which have a pinning effect on the excitation of β-relaxations and correspondingly make the β-relaxation become less pronounced. These chemical effects on β-relaxations can only be compared in the same mG system, and it is not suitable for the comparison between different systems due to the different features of the major metallic elements.

关键词： metallic glass β-relaxation enthalpy of mixing icosahedral clusters