|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 内蒙古草原挥发性有机物排放通量的研究显示文摘2 0 0 2年夏季 ,利用静态箱方法 ,对我国内蒙古草原生态系统挥发性有机物的排放进行了首次测量 ,同时观测了太阳辐射、温湿度等参数 .结果表明 ,异戊二烯是草地挥发性有机物排放中的主要成分 .异戊二烯的排放有明显的日变化、逐日变化和季节变化规律 .因子分析表明 ,可见光辐射、温度、水汽含量是影响异戊二烯排放的主要因子 ,而且可见光辐射是控制其排放过程的最主要因子 .根据相关分析 ,在考虑影响异戊二烯的排放因子时 ,不仅要考虑通常的影响因子———可见光辐射、温度 ,还要考虑水汽的作用 .箱方法的使用不可避免地造成箱内外太阳辐射、温湿度等的差别 ,因此 ,必须考虑修正采样箱对挥发性有机物排放通量带来的影响 .2 0 0 2年夏季 ,异戊二烯排放通量 (C)的最大值为 1 6 4 9 3μg/ (m2 ·h) .6、8、9月采样期间异戊二烯排放通量的日平均值分别为 886 6、70 7 0、4 2 7 2 μg/ (m2 ·h) . | 白建辉 王庚辰 任丽新 Brad Baker Patrick Zimmerman 梁宝生 | 2003 | 环境科学2003,24,6: | 21 |
| 2 | 富铁橄榄石的高温变形实验研究显示文摘利用高精度Paterson气体介质变形装置对(Mg0.5,Fe0.5)2SiO4和(Mg0.7,Fe0.3)2SiO4橄榄石集合体进行了高温三轴压缩变形试验。首先用人工合成了纯铁橄榄石Fe2SiO4,然后用合成的纯铁橄榄石与天然圣卡罗橄榄石按一定比例混合烧结合成了含铁量分别为50%和30%的富铁橄榄石集合体Fo50和Fo70。三轴压缩蠕变变形试验在温度1223-1473 K和围压 300 MPa的条件下进行,差应力为10-300 MPa,应变率为10-7-10-4s-1,每个试件的最大变形量为20%.利用三维非线性方法对蠕变数据进行拟合,得出的流动律中,Fo50应力指数为4.1,活化能为499kJ/mol;Fo70应力指数为4.3,活化能为510kJ/ mol。将实验结果与Fo90圣卡罗橄榄石集合体的强度进行对比,发现含铁量的增加使橄榄石的强度明显下降,Fo50橄榄石集合体比Fo70的粘性低一个量级,Fo70比Fo90的粘性低一个量级。从而得到了含铁量对橄榄石的粘性(强度)影响的初步试验结果。 | 赵永红 Zimmerman M Kohlstedt D L | 2005 | 岩石学报2005,21,3: | 12 |
| 3 | Planetary defense mission concepts for disrupting/pulverizing hazardous asteroids with short warning time显示文摘This paper presents an overview of space mission concepts for disrupting or pulverizing hazardous asteroids, especially with warning time shorter than approximately 10 years. An innovative mission concept, referred to as a nuclear hypervelocity asteroid intercept vehicle (HAIV) system, employs both a kinetic-energy impactor and nuclear explosive devices. A new mission concept of exploiting a multiple kinetic-energy impactor vehicle (MKIV) system that doesn’t employ nuclear explosives is proposed in this paper, especially for asteroids smaller than approximately 150 m in diameter. The multiple shock wave interaction effect on disrupting or pulverizing a small asteroid is discussed using hydrodynamic simulation results. A multi-target terminal guidance problem and a planetary defense mission design employing a heavy-lift launch vehicle are also brie y discussed in support of the new non-nuclear MKIV mission concept. The nuclear HAIV and non-nuclear MKIV systems complement to each other to effectively mitigate the various asteroid impact threats with short warning time. | Bong Wie Ben Zimmerman Joshua Lyzhoft George Vardaxis | 2017 | Astrodynamics2017,1,1: | 10 |
| 4 | 普氏野马繁殖群在组建和放归初期的争斗行为与社群等级建立显示文摘2007年5月下旬至6月下旬,针对新组群并放归于卡拉麦里有蹄类保护区第二放归点的普氏野马(Equus przewalskii)繁殖群,采用焦点动物取样法和全事件记录法,观测记录了组群和放归初期繁殖群内个体间的争斗行为(攻击行为和屈服行为),以优势指数法确定繁殖群内的个体等级序列。结果表明,新组群内个体的年龄与攻击行为发出次数不存在显著的相关性(r=0.60,t=1.62,rr0.05),攻击与屈服行为次数也无显著的相关性(r=0.56,t=1.41,rr0.05)。各个体之间从最初组群到野放争斗行为日趋减少,社群等级逐渐建立并趋于稳定。 | 张峰 胡德夫 李凯 曹杰 陈金良 WALTRAUT Zimmerman | 2009 | 动物学杂志2009,44,4: | 9 |
| 5 | APACHE II: A severity of disease classification system显示文摘 | WILLIAM A. KNAUS ELIZABETH A. DRAPER DOUGLAS P. WAGNER JACK E. ZIMMERMAN | 1985 | Critical Care Medicine1985,,10: | 8 |
| 6 | 城市交通一体化走廊管理的理念与实践显示文摘为解决城市交通量快速增长与土地、交通资源之间的突出矛盾,提高交通系统的效益与效率,有必要针对城市重要交通走廊实施一体化走廊管理。首先,对一体化走廊管理的基本概念进行阐释,指出其对于中国城市交通发展的适用性。然后,提出一体化走廊管理的方法,并分别以发达国家城市伦敦、纽约以及发展中国家城市武汉为例,对一体化走廊管理的应用进行了实证分析。最后,总结实践的经验与教训,指出城市领导者的支持、直接利益关系者间协调机制的建立、与交通使用者的双向沟通,以及方案编制的因地制宜有助于一体化走廊管理的规划与实施。 | 方可 Samuel Zimmerman 王伟 Said Dahdah Gladys Frame | 2012 | 城市交通2012,10,3: | 8 |
| 7 | Cardiac evaluation of liver transplant candidates显示文摘Physicians previously thought that heart disease was rare in patients with end stage liver disease. However, recent evidence shows that the prevalence of ischemic heart disease and cardiomyopathy is increased in transplant candidates compared to most other surgical candidates. Investigators estimate that up to 26% of all liver transplant candidates have at least one critical coronary artery stenosis and that at least half of these patients will die perioperatively of cardiac complications. Cardiomyopathy also occurs in greater frequency. While all patients with advanced cardiac disease have defects in cardiac performance, a larger than expected number of patients have classical findings of dilated, restrictive and hypertropic cardiomyopathy. This may explain why up to 56% of patients suffer from hypoxemia due to pulmonary edema following transplant surgery. There is considerable controversy on how to screen transplant candidates for the presence of heart disease. Questions focus upon, which patients should be screened and what tests should be used. This review examines screening strategies for transplant candidates and details the prognostic value of common tests used to identify ischemic heart disease. We also review the physiological consequences of cardiomyopathy in transplant candidates and explore the specific syndrome of 'cirrhotic cardiomyopathy'. | Mercedes Susan Mandell JoAnn Lindenfeld Mei-Yung Tsou Michael Zimmerman | 2008 | World Journal of Gastroenterology2008,14,22: | 8 |
| 8 | Effect of biochar amendment on sorption and leaching of nitrate, ammonium, and phosphate in a sandy soil显示文摘 | Ying Yao Bin Gao Ming Zhang Mandu Inyang Andrew R. Zimmerman | 2012 | Chemosphere2012,,11: | 6 |
| 9 | Impact of stress on solute transport in a fracture network: A comparison study显示文摘This paper compares numerical modeling of the effect of stress on solute transport (advection and matrix diffusion) in fractured rocks in which fracture apertures are correlated with fracture lengths. It is mainly motivated by the performance and safety assessments of underground radioactive waste repositories. Five research teams used different approaches to model stress/deformation, flow and transport processes, based on either discrete fracture network or equivalent continuum models. The simulation results derived by various teams generally demonstrated that rock stresses could significantly influence solute transport processes through stress-induced changes in fracture apertures and associated changes in permeability. Reasonably good agreement was achieved regarding advection and matrix diffusion given the same fracture network, while some observed discrepancies could be explained by different mechanical or transport modeling approaches. | Zhihong Zhao Jonny Rutqvist Colin Leung Milan Hokr Quansheng Liu Ivars Neretnieks Andrew Hoch Jirí Havlíek Yuan Wang Zhen Wang Yuexiu Wu Robert Zimmerman | 2013 | Journal of Rock Mechanics and Geotechnical Engineering2013,5,2: | 6 |
| 10 | Relationship between HER-2 overexpression and brain metastasis in esophageal cancer patients显示文摘AIM:To study if HER-2 overexpression by locally advanced esophageal cancers increase the chance of brain metastasis following esophagectomy.METHODS:We retrospectively reviewed the medical records of esophageal cancer patients who underwent esophagectomy at University of Iowa Hospitals and Clinics between 2000 and 2010.Data analyzed consisted of demographic and clinical variables.The brain metastasis tissue was assayed for HER-2 overexpression utilizing the FDA approved DAKO Hercept Test.RESULTS:One hundred and forty two patients were reviewed.Median age was 64 years(36-86 years).Eighty eight patients(62%) received neoadjuvant chemoradiotherapy.Pathological complete and partial responses were achieved in 17(19%) and 71(81%) patients.Cancer relapsed in 43/142(30%) patients.The brain was the first site of relapse in 9/43 patients(21%,95% CI:10%-36%).HER-2 immunohistochemistry testing of the brain metastasis tissue showed that 5/9(56%) cases overexpressed HER-2(3+ staining).CONCLUSION:HER-2 overexpression might be associated with increased risk of brain metastasis in esophageal cancer patients following esophagectomy.Further studies will be required to validate this observation. | Taher Abu Hejleh Barry R DeYoung Eric Engelman Jeremy M Deutsch Bridget Zimmerman Thorvardur R Halfdanarson Daniel J Berg Kalpaj R Parekh William R Lynch Mark D Iannettoni Sudershan Bhatia Gerald Clamon | 2012 | World Journal of Gastrointestinal Oncology2012,4,5: | 5 |
| 11 | 橄榄石集合体扭转大变形实验研究显示文摘对(Mg_(0.5),Fe_(0.5))_2SiO_4和(Mg_(0.7)、Fe_(0.3))_2SiO_4橄榄石集合体进行了高温高压扭转大变形实验研究。试验在高精度和高分辨率 Paterson 气体介质变形试验机上进行,试验温度为1473K,围压为300MPa,应变率为10^(-4)~10^(-5)S^(-1),剪切应力为82~124MPa,剪切应变为~400%,将变形后试件沿轴向切开进行了显微结构分析,确定了不同纵截面上橄榄石的颗粒尺寸。由蠕变数据拟合出的流动律中,应力指数为与三轴压缩实验给出的应力指数吻合。利用 EBSD 方法分别对变形前后试件中橄榄石的晶格最优取向(LPO)进行了测定。在富铁橄榄石样品中观测到的最优晶格取向表明滑动属于(okl)[100]滑动系统。这个结果与 Bystricky 等人在 Fo_(90)种观测到的最优晶格取向特征是一致的。 | 赵永红 綦超 李杨 M. Zimmerman D. L. Kohlstedt | 2008 | 岩石学报2008,24,6: | 5 |
| 12 | 经皮神经电刺激治疗女性纤维肌痛疗效取决于最初30分钟显示文摘前期研究表明,经皮神经电刺激(transcutaneous electrical nerve stimulation, TENS)治疗1个月可缓解纤维肌痛(fibromyalgia, FM)女性运动诱发的疼痛和疲劳。该研究再次使用前期TENS治疗FM的研究数据,进行应答者分析,以明确TENS治疗缓解疼痛和疲劳的预测因素,并使用受试者工作特征曲线验证预测模型,确定治疗所需数量(number needed to treat, NNT)和危害所需数量(number needed to harm, NNH)。FM女性病人被随机分配到TENS治疗组、TENS假治疗组和未使用TENS组。随机分组后,受试者接受治疗/假治疗1个月,接着TENS假治疗组和未使用TENS组再接受TENS治疗1个月。预测模型使用TENS治疗组(n=103)数据构建,并用TENS假治疗组和未使用TENS组(n=155)在后继TENS治疗1个月后的数据进行验证。使用逻辑回归模型筛选受试者特征、疼痛和疲劳对TENS治疗的初始反应、睡眠和心理等,以确定其与疼痛或疲劳变化之间的关系。疼痛包括TENS治疗后疼痛初始反应和病人疼痛广泛指数(AUC为0.80;95%置信区间:0.73-0.87)。疲劳改善的预测因素包括对TENS治疗的初始反应、婚姻状况和睡眠障碍(AUC为0.67;95%置信区间:0.58-0.75)。疼痛和疲劳的NNT为3.3-5.3,NNH为20-100。若最初30分钟TENS治疗有效则该FM女性病人长期使用TENS有效,而且该模型得到了后继的临床验证。NNT和NNH的结果表明TENS对管理FM女性病人的疼痛和疲劳安全有效。 | 梅相阳(译) 冯智英(校) Vance CGT Zimmerman MB Dailey DL | 2021 | 中国疼痛医学杂志2021,27,11: | 4 |
| 13 | APACHE II: A severity of disease classification system显示文摘 | WILLIAM A. KNAUS ELIZABETH A. DRAPER DOUGLAS P. WAGNER JACK E. ZIMMERMAN | 1985 | Critical Care Medicine1985,,10: | 4 |
| 14 | Self-Efficacy: An Essential Motive to Learn显示文摘 | Barry J. Zimmerman | 2000 | Contemporary Educational Psychology2000,,1: | 3 |
| 15 | Self-Regulated Learning and Academic Achievement: An Overview显示文摘 | Barry J. Zimmerman | 1990 | Educational Psychologist1990,,1: | 3 |
| 16 | 孤立性心肌致密化不全一例显示文摘 | 杜忠东 曹期龄 Frank Zimmerman Ziyad M Hijazi | 2002 | 中华儿科杂志2002,40,7: | 3 |
| 17 | 美国联邦政府在城市交通发展中的角色显示文摘简要回顾了美国联邦政府支持联邦公路项目、公共交通项目及都市交通计划的历史,并介绍了能力建设和机构建设等内容。1964年之前,美国一直认为城市公共交通是私有部门盈利行业,属于地方责任,联邦政府没有对公共交通投入资金。直到1964年《城市公共交通法》的出台,联邦政府开始认识到国家经济社会和环境的健康发展离不开城市公共交通的高效运行。2010年美国联邦陆路交通项目资金共约500亿美元,其中105亿美元用于公共交通。 | Samuel Zimmerman | 2010 | 城市交通2010,8,5: | 3 |
| 18 | Surviving Sepsis Campaign guidelines for management of severe sepsis and septic shock显示文摘 | R. Phillip Dellinger Jean M. Carlet Henry Masur Herwig Gerlach Thierry Calandra Jonathan Cohen Juan Gea-Banacloche Didier Keh John C. Marshall Margaret M. Parker Graham Ramsay Janice L. Zimmerman Jean-Louis Vincent M. M. Levy | 2004 | Intensive Care Medicine2004,,4: | 3 |
| 19 | Adventitions shoot formation on excised leaves of in vitro grown shoots of apple cultivars显示文摘 | Francesca Fasolo Richard H. Zimmerman Ingrid Fordham | 1989 | Plant Cell Tissue and Organ Culture1989,,2: | 3 |
| 20 | Corn growth and nitrogen nutrition after additions of biochars with varying properties to a temperate soil显示文摘 | Shelby Rajkovich Akio Enders Kelly Hanley Charles Hyland Andrew R. Zimmerman Johannes Lehmann | 2012 | Biology and Fertility of Soils2012,,3: | 2 |