检索结果-南通市图书馆

Physiology of medicinal and aromatic plants under drought stress

在线全文

学校读者我要写书评

暂无评论

Agronomy, Nutritional value, and Medicinal Application of Faba Bean(vicia faba L.)

The Crop Journal 2024年第2期 330页

作者： Zohreh Emami Bistgani allen v.barker Masoud Hashemi

来源：博看期刊评论

在线全文

博看期刊

学校读者我要写书评

暂无评论

Horticultural Plant Journal 2019年第4期5卷 170-182页

作者： Fatemeh Etemadi Masoud Hashemi allen v.barker Omid Reza Zandvakili Xiaobing Liu Stockbridge School of Agriculture University of Massachusetts AmherstMA01003USA Northeast Institute of Geography and Agroecology Chinese Academy of SciencesHarbin150081China

Faba bean(vicia faba L.) is a cool season grain legume crop with the potential to be grown as multi-purpose crop in areas with short growing season. Faba bean is grown in many regions in the world due to its high nutritional value, medicinal effect, and effective biological nitrogen fixation. Diverse ecosystem benefits are expected from integrating faba bean in cropping systems. This paper specifically reviews the published work covering agronomic practices, nutritional values, medicinal benefits, and faba bean’s capacity for nitrogen fixation.

关键词： Biomass Faba bean L-Dopa Nitrogen fixation Nutrient

Stand dynamics of old-growth hemlock forests in central Bhutan are shaped by natural disturbances

在线全文

学校读者我要写书评

暂无评论

Forest Ecosystems 2024年第4期11卷 434-447页

作者： Karma Tenzin Craig R.Nitschke Kathryn J.allen Raphael Trouve Thiet v.Nguyen Patrick J.Baker School of Agriculture Foodand Ecosystem SciencesUniversity of Melbourne500 Yarra BlvdRichmondVictoriaAustralia School of Geography Planningand Spatial SciencesUniversity of TasmaniaSandy BayTasmaniaAustralia Forest Science Institute of South vietnam 1 Pham Van Hai StreetTan Binh DistrictHo Chi Minh CityViet Nam

Understanding how past disturbances have influenced the development of forests is critical for deciphering their current structure and composition and forecasting future *** this study,dendrochronological methods were applied to uncover the disturbance history of old-growth hemlock-dominated forests in central *** of tree-ring samples from two old-growth hemlock stands,located in two different topographic settings,identified the importance of gap-phase dynamics in facilitating recruitment and growth releases and producing complex,multi-aged structure s over *** site showed evidence of a near stand-replacing disturbance in the late 1700s,while the other showed no evide nce of high-severity disturbance at any time over the last 400 *** both sites low-to medium-severity disturbances,some of which appear to be associated with cyclones originating in the Bay of Bengal,dominated the disturbance *** hemlock stands exhibited a significant positive association between cyclone occurrence and growth release events and between recruitment pulses and growth release *** 1800 to 1970 there was an increase in recruitment of angiosperm tree species at most sites and a corresponding decline in conifer *** the past 50 years there has been little new recruitment;this may be due to light limitation in the understory from shade-tolerant angiosperms and bamboo in the lower strata of these *** variations in disturbance dynamics and recruitment were observed across the study sites,suggesting that other factors,such as topography and climate,may be influencing long-term stand development *** study highlights the complex interplay between historical disturbance regimes and tree recruitment in shaping the age and size structures of old-growth hemlock forests in central *** also provides new insights into the dynamics of these forests that can be used to support effective forest conservation and management i

关键词： Forest structure Hemlock forest Himalaya Natural disturbance

Reviewing the Safe Shipping of Lithium-Ion and Sodium-Ion Cells:A Materials Chemistry Perspective

在线全文

学校读者我要写书评

暂无评论

Energy Material Advances 2021年第1期2021卷 1-12页

作者： Ashish Rudola Christopher J.Wright Jerry barker Faradion Limited The Innovation Centre217 PortobelloSheffield S14DPUK

High energy density lithium-ion(Li-ion)batteries are commonly used *** decades’worth of intense research has led to a good understanding on several aspects of such ***,the issue of their safe storage and transportation is still not widely understood from a materials chemistry *** international regulations require Li-ion cells to be shipped at 30%SOC(State of Charge)or *** this article,the reasons behind this requirement for shipping Li-ion batteries are firstly reviewed and then compared with those of the analogous and recently commercialized sodium-ion(Na-ion)*** such alkali-ion batteries,the safest state from their active materials viewpoint is at 0v or zero energy,and this should be their ideal state for storage/***,a“fully discharged”Li-ion cell used most commonly,composed of graphitebased anode on copper current collector,is not actually at 0v at its rated 0%SOC,contrary to what one might expect—the detailed mechanism behind the reason for this,namely,copper dissolution,and how it negatively affects cycling performance and cell safety,will be summarized *** will be shown that Na-ion cells,capable of using a lighter and cheaper aluminum current collector on the anode,can actually be safely discharged to 0v(true 0%SOC)and beyond,even to reverse polarity(negative voltages).It is anticipated that this article spurs further research on the 0v capability of Na-ion systems,with some suggestions for future studies provided.

关键词： cycling summarized alkali

A RECONSIDERATION OF THE ACCURACY OF THE REISNER CATEGORISATION SYSTEM OF EGYPTIAN WATERCRAFT HULL TYPES Ⅵ–Ⅷ

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Ancient Civilizations 2019年第1期34卷 1-19,125页

作者： Michael allen Stephens Monash University

In 2012,I proposed an expansion of the accepted range of hull types utilized by the Egyptians during the Old and Middle Kingdoms,a range based initially on the models and surviving hulls published by Reisner.1 This series expansion ceased at Type v,as Type vI were“Solar”and vII“Divine”vessels,while Type vIII was known only from the New *** v,identifiable as the Manedjet(mand.t),the Day Boat,was included in this expansion due to the discovery and re-assembly of the Old Kingdom vessel of this type,found buried alongside the Great Pyramid,suggestive of its having been a functioning craft,and not *** the hull types Reisner had not categorized,being known only from iconographic depictions,I allocated temporary typological labels–ETH,an abbreviation for“Expedient Type Hull,”with a category and/or a sub category number or *** both the Reisner and the ETH forms,sub categories were developed,utilizing variations of such features as bow and stern finials or variations in hull shape,within the context of their category.

关键词： utilizing expansion abbreviation

Comparison of ArcGIS and SAS Geostatistical Analyst to Estimate Population-Weighted Monthly Temperature for US Counties

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Resources and Ecology 2012年第3期3卷 220-229页

作者：戚晓鹏魏良 Laurie barker Akaki LEKIACHvILI 张兴有中国科学院地理科学与资源研究所北京100101 中国疾病预防控制中心公共卫生监测与信息服务中心北京102206 美国疾病预防控制中心慢性病预防与健康促进中心信息技术与信息资源管理办公室美国佐治亚州亚特兰大市30333 美国疾病预防控制中心慢性病预防与健康促进中心口腔卫生部门美国佐治亚州亚特兰大市30333 美国疾病预防控制中心慢性病预防与健康促进中心成人与社区健康部门美国佐治亚州亚特兰大市30333

Temperature changes are known to have significant impacts on human health. Accurate estimates of population-weighted average monthly air temperature for US counties are needed to evaluate temperature＇s association with health behaviours and disease, which are sampled or reported at the county level and measured on a monthly--or 30-day--basis. Most reported temperature estimates were calculated using ArcGIS, relatively few used SAS. We compared the performance of geostatistical models to estimate population-weighted average temperature in each month for counties in 48 states using ArcGIS v9.3 and SAS v 9.2 on a CITGO platform. Monthly average temperature for Jan-Dec 2007 and elevation from 5435 weather stations were used to estimate the temperature at county population centroids. County estimates were produced with elevation as a covariate. Performance of models was assessed by comparing adjusted R2, mean squared error, root mean squared error, and processing time. Prediction accuracy for split validation was above 90% for 11 months in ArcGIS and all 12 months in SAS. Cokriging in SAS achieved higher prediction accuracy and lower estimation bias as compared to cokriging in ArcGIS. County-level estimates produced by both packages were positively correlated （adjusted R2 range=0.95 to 0.99）; accuracy and precision improved with elevation as a covariate. Both methods from ArcGIS and SAS are reliable for U.S. county-level temperature estimates; However, ArcGIS＇s merits in spatial data pre-processing and processing time may be important considerations for software selection, especially for multi-year or multi-state projects.

关键词： temperature estimation county data ArcGIS SAS cokriging

拉萨市乡村卫生人员儿童发热、腹泻综合管理的培训效果评价研究

在线全文

学校读者我要写书评

暂无评论

中国儿童保健杂志 2011年第2期19卷 187-189页

作者：王继红 Jean allen Cath barker 咸阳市第一人民医院陕西咸阳712000 西藏卫生支持项目西藏拉萨850000

【目的】本研究通过了解拉萨市乡村医生培训前后诊疗行为变化的程度,探讨儿童疾病综合管理(inte-grated management of childhood illness,IMCI)课程的设置与提供的有效性与适宜性,为今后制定拉萨市乡村医生能力建设适宜的途径提供建议... 详细信息

【目的】本研究通过了解拉萨市乡村医生培训前后诊疗行为变化的程度,探讨儿童疾病综合管理(inte-grated management of childhood illness,IMCI)课程的设置与提供的有效性与适宜性,为今后制定拉萨市乡村医生能力建设适宜的途径提供建议。【方法】西藏卫生支持项目对拉萨市的258名乡村医生进行了IMCI的培训,采用问卷调查、实践技能操作的研究方法,分析学员对发热、腹泻患儿的诊断、治疗疗行为在培训前后改变的倾向与程度。【结果】学员们对儿童发热、腹泻诊疗的知识和技能在培训前后差异有统计学意义(P<0.05)。【结论】西藏卫生支持项目为拉萨市乡村医生提供的IMCI课程培训效果显著,有效地改变了拉萨市乡村医生对儿童发热、腹泻的诊疗行为,可为制定当地乡村卫生人员能力建设的方案提供依据。

关键词：乡村医生 IMCI培训效果评价

A green synthesis of carbon nanoparticles from honey and their use in real-time photoacoustic imaging

在线全文

学校读者我要写书评

暂无评论

Nano Research 2013年第5期6卷 312-325页

作者： Lina Wu Xin Cai Kate Nelson Wenxin Xing Jun Xia Ruiying Zhang allen J. Stacy Micah Luderer Gregory M. Lanza Lihong v. Wang Baozhong Shen Dipanjan Pan C-TRAIN and Division of Cardiology Washington University School of Medicine 4320 Forest Park Avenue Saint Louis MO 63108 USA Key Laboratory of Molecular Imaging in College of Heilongjiang Province Department of Radiology the 4th Affiliated Hospital of Harbin Medical University Harbin 1S0001 China Optical Imaging Laboratory Department of Biomedical Engineering Washington University in St. Louis Campus Box 1097 One Brookings Drive St. Louis MO 63130 USA Nano Research Facility (NNIN-NSF) Washington University in St. Louis St. Louis MO 63130 USA

Imaging sentinel lymph nodes （SLN） could provide us with critical information about the progression of a cancerous disease. Real-time high-resolution intrao- perative photoacoustic imaging （PAI） in conjunction with a near-infrared （NIR） probe may offer opportunities for the immediate imaging for direct identification and resection of SLN or collecting tissue samples. In this work a commercially amenable synthetic methodology is revealed for fabricating luminescent carbon nanoparticles with rapid clearance properties. A one-pot ＂green＂ technique is pursued, which involved rapid surface passivation of carbon nanopartides with organic macromolecules （e.g., polysorbate, polyethyleneglycol） in solvent-free conditions. Interestingly, the naked carbon nanoparticles are derived for the first time, from commercial food grade honey. Surface coated particles are markedly smaller （-7 nm） than previously explored particles （gold, single-walled carbon nanotubes, copper） for SLN imaging. The results indicate an exceptionally rapid signal enhancement （-2 min） of the SLN. Owing to their strong optical absorption in the NIR region, tiny size and rapid lymphatic transport, this platform offers great potential for faster resection of SLN and may lower complications caused in axillary investigation by mismarking with dyes or low-resolution imaging techniques.

关键词： carbon nanoparticle honey,contrast agents photoacoustictomography real-time imaging

Elevated temperature intensity,timing,and duration of exposure affect soybean internode elongation,mainstem node number,and pod number per plant

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Crop Journal 2018年第2期6卷 148-161页

作者： Leon Hartwell allen Jr. Lingxiao Zhang Kenneth J.Boote Bernard A.Hauser U.S.Department of Agriculture-Agricultural Research Service GainesvilleFL 32608USA Department of Agronomy University of FloridaGainesvilleFL 32611USA Department of Biology University of FloridaGainesvilleFL 32611USA

A study was conducted in four compartments of a polycarbonate greenhouse at Gainesville,FL, USA to investigate how a soybean(Glycine max L. Merr.) cultivar, Maverick(maturity group III, indeterminate), responded to three elevated temperatures, ELT,(day/night of 34/26 °C, 38/30 °C, and 42/34 °C) in comparison to a control growth temperature(30/22 °C).Carbon dioxide(CO_2) concentration was maintained at 700 μmol mol^(-1) in each compartment by a processor controlled air-sampling and CO_2-injection system. Three sequential experiments were conducted at different times of year(summer, autumn, and early spring)to investigate the effect of intensity, timing, and duration of ELT on soybean node number,internode elongation, mainstem length, and number of pods set per plant. At the control temperature, the soybean plants grown in the polycarbonate greenhouse were taller than field-grown plants. When plants were grown under continuous ELT applied soon after sowing or at initial flowering, the number of nodes increased with increasing ELT intensity,whereas the length of individual internodes decreased. When ELT treatment was applied during the beginning of flowering stage(R1–R2) or earlier, more nodes were produced and the length of affected internodes was decreased. When the ELT was imposed later at reproductive stage R5+ just before the beginning of seed filling, effects on node numbers and internode lengths were negligible. Short-term(10-day) duration of ELT applied at four stages from v3 to R5+ did not significantly affect final mean numbers of nodes or mean mainstem lengths. Possible mechanisms of elevated temperature effects on soybean internode elongation and node number(internode number) are discussed. Total pod numbers per plant increased linearly with mainstem node numbers and mainstem ***, total pod numbers per plant were greatest at 34/26 °C rather than at the control temperature of 30/22 °C(and remained high at 38/30 °C). Mild increases in temperatu

关键词： Elevated temperature Internode elongation Node number Pod yield Soybean phenology