|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 采用有限元分析法量化不同中空玻璃边缘密封的热位移显示文摘间隔条和玻璃板片之间的相对热位移是中空玻璃边缘密封乃至中空玻璃(IGU)本身老化的主要原因之一。作者采用有限元分析法(FEA),建立了发生在大尺寸(1.5 m×2.1 m)的中空玻璃边缘密封的热位移与温差变化之间的模型,这是三种商业化的、不同材质的、不同设计的间隔条,在温度变化为-30^+60℃范围内的模型。此模型是基于铝间隔条和镀锌钢间隔条与尼龙插角的搭配,不锈钢间隔条和弯曲插角的搭配。尼龙插角假定为实心的并稳固地固定于间隔条上;弯曲插角被建模成实心弯曲的金属插角,并同样稳固地固定于间隔条上。由于实际的弯曲插角是空心的,模型可能高估了这种转角设计的应力。正如预期那样,在低温时,插角会被向内拉,导致弯曲角度大于90°;在高温下,插角会被向外推,导致弯曲角度小于90°。通过检测发生在中空玻璃周边第一道密封的聚异丁烯密封胶厚度的变化,作者发现,到目前为止,不锈钢间隔条对于截面积的变化影响最小;铝制间隔条的影响最大。这个发现与基于间隔条材料与浮法玻璃之间热膨胀系数差异而预期的性能一致。因此,热位移引起的第一道密封的有效扩散横截面变化,可以解释为何具有不同间隔条材料的中空玻璃之间的性能差异。 | James E.Stewart William R.O’Brien Andreas T.Wolf 李宏伟 周文亮 王文开 范琴 马作栋 | 2007 | 玻璃2007,34,2: | 3 |
| 2 | 对国际互联网上音乐治疗信息的描述性分析显示文摘该研究包含两个调查。主要目的1、了解、描述和分析国际互联网上所出现的有关音乐治疗的信息及其特征;2、指导一个对音乐医疗不熟悉的人在国际互联网上收集和准确地找到关于音乐医疗的有意义的信息。调查1对20个搜索引擎中的201个网站进行了调查。结果显示,美国音乐治疗协会(AMTA)的网站以最高的出现频率排列在所有网站的最前面。教育机构和商业机构的网站也有很高的使用率。大多数排位靠前的网站对音乐医疗下了较传统的定义(与美国音乐医疗协会AMTA一样),这些网站与相关网站的链接也很方便。一年以后再次重复了这一调查过程(调查2)。调查2使用的搜索关键词为“什么是音乐医疗?”结果,145个网站在这次调查中出现。其中,美国音乐医疗协会的网站又一次以最高的使用率排列在所有网站的最前面。教育机构和商业机构的网站虽有很高的使用率,但这些排列靠前的网站中只有一半对音乐医疗下了传统的定义。调查结果显示,用”音乐医疗”作为关键词出现在A M T A网站的可能性比用“什么是音乐医疗”高。这表明,搜索引擎对简单明了的问题更容易识别。也许AMTA可以在这方面作改进。调查还表明,商业网站的“音乐治疗”信息缺乏可靠性,个人在参考时应谨慎。 | Christopher M.Johnson John M.Geringer Euin E.Stewart 周世斌 胡秋霞 | 2006 | 中国音乐2006,,1: | 2 |
| 3 | AN IMPLICIT TIME‐STEPPING SCHEME FOR RIGID BODY DYNAMICS WITH INELASTIC COLLISIONS AND COULOMB FRICTION显示文摘 | D. E.STEWART J. C.TRINKLE | 1998 | Engng1998,,15: | 1 |
| 4 | The effect of periodontal treatment on glycemic control in patients with type 2 diabetes mellitus显示文摘 | James E.Stewart Karen A.Wager Arthur H.Friedlander Homayoun H.Zadeh | 2002 | Journal of Clinical Periodontology2002,,4: | 1 |
| 5 | Category interference in translation and picture naming:Evidence for asymmetric connections between bilingual memory representations显示文摘 | Kroll J.F E.Stewart | | 0,,: | 1 |
| 6 | Category interference in translation and picture naming:Evidence for asymmetric connections between bilingual memory representations显示文摘 | Kroll J.F E.Stewart | | 0,,: | 1 |
| 7 | Discrimination and goodness of fit of multiresponse mechanistic models显示文摘 | W. E.Stewart Y.Shon G. E. P.Box | 2004 | AIChE J2004,,6: | 1 |
| 8 | Towards predicting biochar impacts on plant-available soil nitrogen content显示文摘Biochars can improve soil health but have been widely shown to reduce plant-available nitrogen(N)owing to their high carbon(C)content,which stimulates microbial N-immobilization.However,because biochars contain large amounts of C that are not microbially available,their total elemental C:N ratio does not correspond well with impacts on soil N.We hypothesized that impacts on soil plant-available N would relate to biochar mineralizable-C(C_(min))content,and that C:N ratios of the mineralizable biochar component could provide a means for predicting conditions of net soil N-mineralization or-immobilization.We conducted two laboratory experiments,the first measuring biochar C_(min)from respiration of isotopically labeled barley biochars manufactured at 300,500,and 750℃,and the second characterizing C_(min)by proxy measurements for ten biochars from six feedstocks at several temperatures.For both experiments,soils were incubated with 2%biochar by mass to determine impacts to soil N-mineralization.Contrary to expectation,all the biochars increased soil N-mineralization relative to unamended soils.Also unexpected,higher temperature(500 and 700℃)barley biochars with less C_(min)stimulated more soil decomposition and more soil N-mineralization than a 350℃barley biochar.However,across diverse biochar feedstocks and production methods,none of the biochar characteristics correlated with soil N-mineralization.The finding of improved soil N-mineralization adds complexity to the range of soil N responses that can be expected in response to biochar amendment.Because of the limited ability to predict soil N responses from biochar properties,users should monitor soil N to manage soil fertility. | Claire L.Phillips Kylie M.Meyer Manuel Garcia-Jaramillo Clara S.Weidman Catherine E.Stewart Thomas Wanzek Michael A.Grusak Donald W.Watts Jeff Novak Kristin M.Trippe | 2022 | Biochar2022,4,1: | 0 |
| 9 | A New Perspective of the Physical Processes Associated with the Clear-Sky Greenhouse Effect over High Latitudes显示文摘The physical processes associated with the clear-sky greenhouse effect in the presence of water vapor are examined by including surface emissivity in the greenhouse effect formulation, and by introducing a new way to partition physical processes of the greenhouse effect. In this new framework, it is found that the clear-sky greenhouse effect is governed by three physical processes associated with (1) the temperature contrast between the surface and the atmosphere, (2) the interaction between the surface emissivity and the temperature contrast, and (3) the surface emissivity. The importance of the three physical processes is assessed by computing their vertical and spectral variations for the subarctic winter and summer standard atmosphere using the radiation model MODTRAN3 (Moderate Resolution Transmittance code Version 3). The results show that the process associated with the temperature contrast between the surface and the atmosphere dominates over the other two processes in magnitude. The magnitude of this process has substantial variations in the spectral region of 1250 to 1880 cm-1 and in the far infrared region. Due to the low-level temperature inversion over the subarctic winter, there exists a negative contribution to the greenhouse trapping. The seasonal variations are, however, dominated by the processes associated with the interaction between the surface emissivity and the temperature contrast as well as the surface emissivity itself. The magnitudes of these two physical processes contributing to the greenhouse trapping over the subarctic winter are about 7 to 10 times of those over the subarctic summer, whereas the magnitude of the processes associated with the temperature contrast in the subarctic summer is only about 2 times of that in the subarctic winter. | Zuohao CA0 Ronald E.STEWART M.K.YAU | 2004 | Advances in Atmospheric Sciences2004,21,2: | 0 |