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Getting the Most Out of Every Training Day:The Influence of Instructors on Self-Regulated Learning During Firefighter Leadership Courses

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International Journal of Disaster Risk Science 2024年第3期15卷 332-345页

作者： Stefan Röseler Micha Hilbert Guido hertel Meinald T.Thielsch Department of Psychology University of Münster48149MünsterGermany

Leadership courses in the fire services are highly challenging,and they can seriously exhaust trainees and hamper their selfregulated learning efforts(for example,setting goals,focusing attention,seeking feedback).We theorize that experiences of failure or overload can curtail trainees'available energy resources on subsequent training days,which,in turn,should affect trainees'learning *** instructors'central role in leadership courses,we hypothesize that supportive and humble instructor behaviors decrease experiences of failure and overload and,thus,increase self-regulated ***,we argue that supportive instructor behavior may amplify the positive effects of high energy resources,while humble behavior may alleviate the negative impact of low resource *** tested preregistered hypotheses with 118 firefighters participating in two-week leadership courses at a German fire *** participants completed short web-based questionnaires before and after classes each *** analyses confirmed that perceived daily supportive and humble instructor behavior predicted trainees'reports of daily self-regulated learning ***,this effect was independent from positive effects of trainees'reported energy resources in the *** and humble behavior did not moderate the eff ect of energy *** findings suggest that instructors play a crucial role in facilitating effective learning under challenging training ***,we offer implications for leaders in fire services,who often conduct trainings with their subordinates.

关键词： Diary study Fire services Instructor behavior Leadership training Resource investment

Numerical investigations of arc behaviour in gas metal arc welding using ANSYS CFX

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Frontiers of Materials Science 2011年第2期5卷 98-108页

作者： M. SCHNICK U. FUESSEL M. hertel A. SPILLE-KOHOFF A. B. MURPHY Institute of Surface and Manufacturing Technology Technische Universitat Dresden Dresden Germany CFX Berlin Software GmBH Berlin Germany CSIRO Materials Science and Engineering Lindfield NSW 2070 Australia

Current numerical models of gas metal arc welding（GMAW）are trying to combine magnetohydrodynamics （MRD） models of the arc and voiume of fluid （VoF） models of metal transfer They neglect vaporization and assume an argon atmosphere for the arc region, as it is common practice for models of gas tungsten arc welding, These models predict temperatures above 20 000K anda temperature distribution similar to tungsten inert gas （TIG） arcs： However. current spectroscopic temperature measuretemperatures. In contrast to TIG arcs temperature distrbution. The paper vapour and which is in a yery good res, Futhermore; the model is abile to predict the local central minimum in the radial temperature and the radial electric current density distributions for the first time. The axially symmetric model of the welding torch, the work piece, the wire and the arc （fluid domain） implements MHD as well as turbulent mixing and thermal demixing of metal vapour in argon. The mass fraction of iron vapour obtained from the simulation shows an accumulation in the arc core and another accumulation on the fringes of the arc at 2000 to 5000 K. The demixing effects lead to very low concentrations of iron between these two regions. Sensitive analyses demonstrate the influence of the transport and radiation properties of metal vapour, and the evaporation rate relative to the wire feed. Finally the model predictions are compared with the measuring results of Zielihska et al.

关键词： arc welding numericai simulation GMAW, ANSYS CFX

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欧洲中部刺槐种源群体等位酶变异研究

Acta Genetica Sinica 2004年第12期31卷 1439-1447页

作者：杨敏生 Heike hertel Volker Schneck 河北农业大学 Institute for Forest Genetics and Forest Tree Breeding Federal Research Centre for Forestry and Forest ProductsWaldsivers dorfD15377Germany

从欧洲中部及美国收集了 18个刺槐种源种子 ,以 2年生苗木为材料 ,采用水平切片淀粉凝胶电泳和聚丙烯酰胺凝胶电泳对 11个酶系统进行了检测 ,共发现 2 0个酶位点 ,其中 14个为多态位点 ,多态性位点百分数为70 %。在参加计算的 7个酶系统... 详细信息

从欧洲中部及美国收集了 18个刺槐种源种子 ,以 2年生苗木为材料 ,采用水平切片淀粉凝胶电泳和聚丙烯酰胺凝胶电泳对 11个酶系统进行了检测 ,共发现 2 0个酶位点 ,其中 14个为多态位点 ,多态性位点百分数为70 %。在参加计算的 7个酶系统的 12个多态性位点中 ,平均每个位点的等位基因数 (A)和平均每位点等位基因有效数 (Ae)为 2 733和 1.794 ,平均每个位点的实际杂合度 (Ho)和预期杂合度 (He)为 0 36 8和 0 4 0 0 ,固定指数 (F)为 0 0 80 ,绝大多数位点固定指数为正值。各基因位点遗传参数与 12个位点平均值进行相关分析表明 ,Fe b和Lap a的大部分群体遗传参数 (A、Ae、Ho、He等 )与平均值存在紧密的相关关系 ,其他位点各项遗传参数和总平均值相关不明显 ,这些位点的重要性可能比相关性较好的位点更大。德国 8个种源群体间遗传距离变化在 0 0 9～0 2 6之间 ,来自匈牙利的 6个种源之间遗传距离很小 ,绝大部分均在 0 11以下 ;德国的 8个种源与匈牙利和斯洛伐克的 8个种源之间的遗传距离变化在 0 0 9～ 0 2 4之间 ;来自美国的 2个种源 ,与欧洲的种源间的遗传距离在0 0 9～ 0 2 3之间 ,这一距离没有超出欧洲种源之间的差异。匈牙利和斯洛伐克的 8个种源群体的各项遗传参数均高于德国种源 ,表明这?

关键词：等位酶遗传多样性刺槐种源群体

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欧洲刺槐种源群体遗传结构和多样性

生态学报 2004年第12期24卷 2700-2706页

作者：杨敏生 Heike hertel Volker Schneck 河北农业大学保定071000 Institute for Forest Genetics and Forest Tree Breeding

对来自欧洲和美国的 18个刺槐种源子代进行了等位酶分析。可进行遗传分析的 7个酶系统 (Amy,Fe,L ap,Idh,Mdh,6 Pgd,Skd)中有 14个基因位点 ,其中 12个位点具有多态性。每个多态位点平均等位基因数 (A/L )变化在 1.5 6～ 3.6 7之间 ,平... 详细信息

对来自欧洲和美国的 18个刺槐种源子代进行了等位酶分析。可进行遗传分析的 7个酶系统 (Amy,Fe,L ap,Idh,Mdh,6 Pgd,Skd)中有 14个基因位点 ,其中 12个位点具有多态性。每个多态位点平均等位基因数 (A/L )变化在 1.5 6～ 3.6 7之间 ,平均基因型数 (G/L)变化在 1.6 1～ 7.11之间 ,平均等位基因有效数目 (Ae)变化在 1.0 2～ 2 .5 0之间 ,预期杂合度 (H e)变化在0 .0 2～ 0 .5 6之间。不同种源群体之间也存在较大的遗传差异 ,在 8个德国种源中 ,各群体的 A、Ae、和 H e等相对较小 ,但不同群体间差异较大。各位点等位基因频率在不同种源群体间变化也较大 ,表明德国各种源群体内遗传变异相对较小 ,但群体间差异较大。来自匈牙利和斯洛伐克的 8个种源群则相反 ,各群体的 A、Ae、和 H e等相对较大 ,而不同种源群体间差异则较小 ,各位点等位基因频率在种源群体间变化相对一致 ,表明这两个国家的种源群体内变异较大 ,但不同种源群体间差异较小。欧洲的刺槐种源并未形成明显的地理变异模式 ,而且欧洲的种源和来自原产地的美国种源相比 ,没有发现明显的差异。经过 Hardy-Weinberg平衡检测证明 ,88.4 1%位点符合 H- W遗传平衡 ,表明各群体基因频率和基因型频率保持较高的稳定性 ,且种源内的变异大于种源间变异 ,94 .

关键词：刺槐种源群体等位酶遗传结构遗传多样性

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压力机液压系统的发展趋势

现代制造 2004年第20期 22-23页

作者： Stefan hertel

什么都不像变化那样持续不断,日新月异。这个尽人皆知的道理也适用于液压系统领域,因为要面临气动系统、机械系统,尤其是电气系统的挑战,液压系统必须弥补自身的不足,不断创新,才能得到更广泛的应用。

关键词：压力机液压系统机械系统电气系统无泄漏连接技术

Economic and Land Use Impacts of Improving Water Use Efficiency in Irrigation in South Asia

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Journal of Environmental Protection 2016年第11期7卷 1571-1591页

作者： Farzad Taheripour Thomas W. hertel Badri Narayanan Sebnem Sahin Anil Markandya Bijon Kumer Mitra Department of Agricultural Economics Purdue University West Lafayette USA School of Environment University of Washington Seattle USA The World Bank Washington DC USA Basque Centre for Climate Change Spain and Bath University Bath UK Institute for Global Environmental Strategies Hayama Japan

This paper modifies and uses an advanced computable general equilibrium model coupled with biophysical data on land and water resources by Agro-Ecological Zone (AEZ) at the river basin level to examine the economy-wide consequences of im-provements in water use efficiency (WUE) in irrigation in South Asia. This is the first time the benefits of such improvements have been evaluated in an economy-wide context. It shows that such improvements increase production of food items, enhance food exports, and significantly improve food security in South Asia. Improvement in water use efficiency also leads to lower food prices, provides the opportunity to extend irrigated areas, decreases demand for cropland, and enhances reforestation. Im-provement in water use efficiency in irrigation also generates important net GDP gains across the South Asia region. Investments in improved WUE of up to 40% can be economically justified in Bangladesh, India, and Sri Lanka. However, in Nepal, for an improvement of more than 20% in WUE, the economic gains are smaller than costs from the associated investments. In Pakistan and rest of South Asia, an improvement in WUE of up to 30% appears to be economically profitable.

关键词： General Equilibrium Water Use Efficiency Economy Wide Impacts Irrigation Land Use Change South Asia

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工业控制中的LONWORKS

流程工业 2002年第4期 32-36页

作者： JueRGENW.hertel 欧洲埃施朗公司

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苯基氰的单光子电离与碎解

物理学报 1991年第5期40卷 698-702页

作者：王振亚 W.KAMKE B.KAMKE I.V.hertel 中国科学院安徽光学精密机械研究所合肥230031 德意志联邦共和国弗赖堡大学物理系

用同步辐射研究苯基氰分子的单光子电离与碎解,精确地测量它的电离势、在不同的飞行时间产生的自发的和亚稳态碎片离子的出峰电势(appearance potential)。利用离子能量损失扫描谱,得到亚稳态碎片离子的衰变曲线。

关键词：苯基氰光电离碎解

Automation of Ultrafast Pump Probe Spectroscopy of(6,5)Single-Walled Carbon Nanotubes

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Automation of Ultrafast Pump Probe Spectroscopy of(6,5)Singl...