检索结果-南通市图书馆

Restoring soil health to reduce irrigation demand and buffer the impacts of drought

Frontiers of Agricultural Science and Engineering 2020年第3期7卷 339-346页

作者： Rebecca SCHNEIDER Stephen MORREALE Zhigang LI Erin MENZIES PLUER kirsten kurtz Xilu NI Cuiping WANG Changxiao LI Harold VAN ES Department of Natural Resources Cornell UniversityIthacaNY14853USA School of Agriculture Ningxia UniversityYinchuan 750021China Modeling and Spatial Analysis Lab Department of Geography and Environmental ManagementUniversity of WaterlooWaterlooN2L 3G1Canada Cornell Soil Health Laboratory Cornell UniversityIthacaNY14853USA Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration of North-western China Ningxia UniversityYinchuan 750021China State Key Laboratory of the Seedling Bioengineering Ningxia Forestry InstituteYinchuan 750004China Collge of Life Sciences Southwest UniversityChongqing 400715China Department Soil and Crop Sciences Cornell UniversityIthacaNY14853USA

Irrigation consumes three quarters of globalwater withdrawals each year. Strategies are needed toreduce irrigationwater use, including increasingtheefficiency of transfer methods and field *** restoration of soil health, specificallythrough organic matter amendments, can substantiallyreduce irrigation demand and increase crop yield. Aprogram to restore severely degraded and desertified soilsby incorporating coarse woodchips into the soil success-fully increased rainfall capture and elevated soil moisturefor several weeks between rainfall events at both Ningxia,north-west China and North Dakota, USA. With additionof fertilizer, woodchip incorporation further increasedgrowth of wheat and alfalfa. Comprehensive soil healthassessment of remnant grasslands was used to developtarget reference soil profiles by which to guide restorationefforts. Given that most agricultural soils are degraded tosome degree, soil health restoration can provide a powerfulstrategy toward achieving global food and water security.

关键词： drought irrigation restoration soil health woodchips

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Joy of gardening: a hospital-based cooking and gardening program

引用

World Journal of Pediatrics 2020年第5期16卷 533-536页

作者： Grace Kim kirsten Thompson Department of Pediatrics University of WashingtonSeattleWA 98105USA Department of Nutrition Seattle Children's HospitalOC 7.820PO Box 5371SeattleWA 98105USA

Background Nutrition interventions aid in implementing healthy ***-enhanced nutrition intervention programs have been conducted in *** sought to assess feasibility of a hospital-based cooking and gardening *** The cohort study implemented a 3-week integrated cooking and gardening program in the United States(Seattle,WA).We recruited participants with ages 8-15 years from ambulatory *** conducted three 3-week series hospitalbased cooking and gardening *** and parents were given pre-and post-program(1 year)*** surveys assessed child participation in food preparation and gardening,strengths and weaknesses of the program,and identified parents'opinions towards sustaining healthy *** Eighteen children participated in the hospital-based cooking and gardening *** l-year follow-up,78%of participants were gardening at home and 100%of participants were cooking at *** Novel approaches to combat obesity are needed.A hospital-based cooking and gardening program is a novel intervention to consider for nutrition education.

关键词： Child nutrition Community health education Health education Healthy lifestyle Healthy nutrition

来源：

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

An assessment of the climatic suitability of Afriski Mountain Resort for outdoor tourism using the Tourism Climate Index(TCI)

引用

Journal of Mountain Science 2019年第11期16卷 2453-2469页

作者： kirsten NOOME Jennifer M.FITCHETT School of Geography Archaeology and Environmental Studies University of the Witwatersrand

Tourism Climatic Indices(TCIs)are widely used in the global North to quantify the climatic suitability of a destination for *** one such study has been conducted in southern Africa to *** is in a chronic shortage of research on tourism and climate change in the southern *** study presents the application of the TCI in Lesotho,calculated for the eastern Lesotho *** region has an emerging tourism sector,which primarily comprises outdoor *** include hiking,horse-riding,music festivals,mountain biking,cultural visits,sightseeing,and at the Afriski lodge,skiing and *** activities are reliant on climatic conditions that are conducive to the activity taking place,prolonged periods outdoors,and tourist satisfaction of the *** is a major determinant of both the length of season for these activities and the timing of peak tourist *** temperatures and changes in relative humidity and precipitation pose real threats to hiking,sightseeing and snow tourism at *** reliance of tourism in the region on specific climatic conditions for successful tourism prompted the use of the *** results classify the eastern Lesotho Highlands as having‘good'climatic conditions with an overall TCI score of 64 for the period *** TCI scores for the eastern Lesotho reveal a bimodal-shoulder,meaning the peak climatic conditions are in the regional summer months(December to February).This conflicts with the peak tourist seasons of summer and winter,which align with South African school holidays,and the timing of the most profitable tourism activity(skiing)which occurs during the winter months of June,July and *** is landlocked by South *** analysis for South Africa reveals more suitable climatic conditions for tourism than Lesotho,with significantly higher scores of 80-89.

关键词： Climate Tourism Climatic Index(TCI) Lesotho Highlands Outdoor tourism Snow tourism

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A cost-effective, simple and high-throughput method for DNA extraction from insects

引用

Insect Science 2010年第5期17卷 465-470页

作者： Malgorzata Lagisz Gordon Port kirsten Wolff School of Biology Newcastle University Newcastle upon Tyne UK

We present a high-throughput cost-effective method to extract DNA suitable for polymerase chain reaction （PCR） from insect tissue. The method uses standard 200μL- deep 96-well plates in which samples are ground, digested and subsequently purified. The test extraction using four different insect species and controlling for potential contamination showed that the method yields good-quantity and quality DNA. PCR with mitochondrial and nuclear primers was reliable. The proposed extraction protocol combines the speed of commercial 96-well plate methods with the economies associated with readily available and cheap laboratory chemicals, consumables and equipment. Therefore, this method is particularly suitable for low-budget research projects and for laboratories with only basic equipment present.

关键词： DNA extraction genetic isolation molecular technique

来源：

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

Biomimetics in Production Organization -A Literature Study and Framework

引用

Journal of Bionic Engineering 2016年第2期13卷 200-212页

作者： kirsten Reisen Ulrich Teschemacher Michael Niehues Gunther Reinhart Institute for Machine Tools and Industrial Management Technische Universitat Miinchen ( TUM) Boltzmannstrafle 15 85748 Garch ing Germany

Biomimetics is an established field in research and industry. Current approaches focus on the use of biological principles in product development, while large potentials have also been identified for transferring organisational principles from nature to production organisation. This study gives a comprehensive overview of existing literature and illustrates that only fragmented research is being conducted at present. In order to enable systematic translation into methods that are available to practitioners, a framework is developed which allows the body of literature to be structured and potential fields not being researched at present to be identified. It also points out that some biological principles receive more attention in research approaches and practical implementation in production organisation than others. Furthermore, correlations between biological principles and principles in production are identified that there have already been successful translations of biomimetic approaches to production organisation. On the other hand, it suggests that there are numerous promising approaches only described in an initial paper that need further research before they can be implemented in practice.

关键词： biomimetics framework production organisation optimization

来源：

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

Professional Learning between Past Experience and Future Work

引用

Frontiers of Education in China 2010年第3期5卷 329-346页

作者： kirsten Weber Department of Psychology and Educational Studies Roskilde UniversityDK 4000 RoskildeDenmark

This paper deals with the professionalization of human service work. It analyses learning processes and identity development in the emerging profession of child care with concrete examples from empirical research, based on a life history approach. It discusses examples of careers mainly based on students’ life experience, pointing out that their immediate success in the workplace may inhibit an even better qualification they had been spurred to critical reflection. It further follows a sample of students through their theoretical education and trainee periods, illuminating their changing identification with and understanding of their future work, and their learning of professional knowledge and competences. The conclusion is that the new 3.5 year education in child care pedagogy clearly improves the professional competences of child care, but it also identifies a set of further specific challenges to be met for the development of real professional competences.

关键词： child care pedagogy profession work identity life experience workplace learning

来源：

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

Diabetes, its impact on peripheral nerve regeneration： lessons from pre-clinical rat models towards nerve repair and reconstruction

引用

Neural Regeneration Research 2018年第1期13卷 65-66页

作者： kirsten Haastert-Talini Lars B. Dahlin Institute of Neuroanatomy and Cell Biology Hannover Medical School Hannover Germany Center for Systems Neuroscience (ZSN) Hannover Germany Department of Translational Medicine-Hand Surgery Lund University Lund Sweden Department of Hand Surgery Skane University Hospital Malmo Sweden

The global number of patients with type 1 and type 2 diabetes is about to increase substantially in the coming decades. The reasons for this are two-fold, at first there is actual increase in incidence of type 1 diabetes and at second there is global increase in living expectancy and a high prevalence of patients with type 2 diabetes among the elderly. The diabetic condition is affiliated with reduced peripheral nervous system maintenance, such as peripheral neuropathies （Juster-Switlyk and Smith, 2016） that may be more common in men.

关键词： Diabetes length

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Carbon Dioxide and Nitrous Oxide Emissions from Naturally Occurring Sulfate-Based Saline Soils at Different Moisture Contents

引用

Pedosphere 2017年第5期27卷 868-876页

作者： Resham THAPA Amitava CHATTERJEE Abbey WICK kirsten BUTCHER Department of Soil Sciences School of Natural Resources Management North Dakota State University

Soil salinization may negatively affect microbial processes related to carbon dioxide （CO2） and nitrous oxide （N20） emissions. A short-term laboratory incubation experiment was conducted to investigate the effects of soil electrical conductivity （EC） and moisture content on CO2 and N20 emissions from sulfate-based natural saline soils. Three separate 100-m long transects were established along the salinity gradient on a salt-affected agricultural field at Mooreton, North Dakota, USA. Surface soils were collected from four equally spaced sampling positions within each transect, at the depths of 0-15 and 15-30 cm. In the laboratory, artificial soil cores were formed combining soils from both the depths in each transect, and incubated at 60% and 90% water-filled pore space （WFPS） at 25 ~C. The measured depth-weighted EC of the saturated paste extract （ECe） across the sampling positions ranged from 0.43 to 4.65 dS m-1. Potential nitrogen （N） mineralization rate and CO2 emissions decreased with increasing soil ECe, but the relative decline in soil CO2 emissions with increasing ECe was smaller at 60% WFPS than at 90% WFPS. At 60% WFPS, soil N20 emissions decreased from 133 g N20-N kg-1 soil at ECe （ 0.50 dS m-1 to 72 μg N20-N kg-1 soil at ECe = 4.65 dS m-1. In contrast, at 90% WFPS, soil N20 emissions increased from 262 g N20-N kg-1 soil at ECe ： 0.81 dS m-1 to 849 g N20-N kg-1 soil at ECe ： 4.65 dS m-1, suggesting that N20 emissions were linked to both soil ECe and moisture content. Therefore, spatial variability in soil ECe and pattern of rainfall over the season need to be considered when up-scaling N20 and CO2 emissions from field to landscape scales.

关键词： electric conductivity C and N mineralization salinity sulfate salts soil salinization soil water-filled pore space

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Influence of Microstructures on Thermal Shock and Sintering Behavior of YSZ-based Thermal Barrier Coatings

引用

表面技术 2019年第4期48卷 28-33页

作者： kirsten Bobzin Lidong Zhao Mehmet ?te Tim K?nigstein Surface Engineering Institute RWTH Aachen University

In this study, two thermal barrier coatings based on YSZ were produced by using a commercially available agglomerated and sintered powder and a special spray powder prepared by high energy ball milling. Both thermal barrier coatings exhibited similar overall porosities, but significantly different microstructures. Application of the special spray powder prepared by high energy ball milling led to a microstructure with numerous inclusions of semi-molten agglomerates, which introduced a plethora of clusters of fine pores into the coating and several more microstructural defects. This microstructure resulted in a significantly better thermal shock behavior compared to the conventional thermal barrier coating. The heat treatment of both thermal barrier coatings atθ=1150℃for t=100 h led to a sintering of both coatings. The results were reduced overall porosity and significantly increased fracture toughness. A correlation between the fracture toughness of both coatings after the heat treatment and the thermal shock life time could not be identified.

关键词： thermal barrier coating ZrO2-7%Y2O3 high energy ball milling thermal shock

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Reorganization of a Large UniversityAdministration, with Emphasis onPersonnel Development

引用

中外科技信息 2001年第11期 78-79页

作者： kirsten Mallossek Chancellor’s Consultant University of Cologne

The following is a description of the administrativereorganization project at the University of Cologne. Theadministration, which is divided into six departmentsand two administrative sections, employs about 500persons not including employees of the Medical Facili-ties of the University of Cologne. The University of Co-logne has 414 professors, 2,612 employees and almost63,000 students. It is a traditional university with sev-en faculties offering 120 courses of study in about 70

关键词： Co with Emphasis onPersonnel Development Reorganization of a Large UniversityAdministration

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：