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LONg-TERM VARIABILITY OF THE INDIAN SUMMER MONSOON AND RELATED PARAMETERS

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Advances in Atmospheric Sciences 1988年第4期5卷 469-481页

作者： g. B. Pant,K. Rupa Kumar,B. Parthasarathy,H. P. Borgaonkar Indian Institute of Tropical Meteorology Pune-411005 India Indian Institute of Tropical Meteorology Pune-411005 India Indian Institute of Tropical Meteorology Pune-411005 India Indian Institute of Tropical Meteorology Pune-411005 India

The long-term variability of the Indian summer monsoon rain-fall and related regional and global parameters are studied. The cubic spline is used as a digital filter to smooth the high frequency signals in the time series of the various parameters. The length of the data series varies from 95 to 115 years during the period 1871-1985. The parameters studied within the monsoon system are: (a) monsoon rainfall of the country as a whole; (b) number of break-monsoon days during July and August; (c) number of storms/ depressions in Bay of Bengal and Arabian Sea during summer monsoon season; and (d) dates of onset of summer monsoon over South Kerala Coast. The parameters studied outside the monsoon system are: (a) the wright's Southern Oscillation Index (June-July-August); (b) the January mean Northern Hemispheric surface air temperature anomaly; and (c) the East-equatorial Pacific sea surface temperature *** order to examine the variability under various degrees of the smoothing, the series are filtere

关键词：口口 LONg-TERM VARIABILITY OF THE INDIAN SUMMER MONSOON AND RELATED PARAMETERS VRF Bay

CT灌注评价家兔肝肿瘤模型经动脉输注递增剂量血管紧张素Ⅱ后肿瘤组织血流动力学变化

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国际医学放射学杂志 2011年第6期 578-579页

作者： K.C.wright M.K.Ravoori K.A.Dixon S.P.Singh 陈斌 Department of Diagnostic Radiology The University of Texas MD Anderson Cancer Center1515 Holcombe BlvdHoustonTX 77030-USA

目的用动态对比剂增强CT灌注成像评价家兔正常肝脏和VX2肿瘤模型肝脏在输注递增剂量的血管紧张素Ⅱ后组织血流动力学的变化。材料与方法本研究经动物保护和利用委员会正式批准。12只家兔分别种植单个肝VX2肿瘤。每只家兔均经肝动脉输注... 详细信息

目的用动态对比剂增强CT灌注成像评价家兔正常肝脏和VX2肿瘤模型肝脏在输注递增剂量的血管紧张素Ⅱ后组织血流动力学的变化。材料与方法本研究经动物保护和利用委员会正式批准。12只家兔分别种植单个肝VX2肿瘤。每只家兔均经肝动脉输注不同剂量(0.1～50.0μg/mL)

关键词：血管紧张素Ⅱ 递增剂量 BV MTT 正常肝组织血流动力输注肿瘤模型 CT

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尼日利亚儿童铅中毒的原因

世界核心医学期刊文摘（儿科学分册） 2005年第7期1卷 6-7页

作者： wright N.J. Thacher T.D. Pfitzner M.A. P.R.Fischer 李开 Dept.of Pediat.and Adol.Medicine Mayo Clinic 200 First Street SW Rochester MN 55905 United States Dr.

Background: Up to 70%of young Nigerian children have been reported to have blood lead concentrations ≥10 μg/***: To better elucidate risk factors for lead toxicity among Nigerian families with children at risk for lead ***: Two geographic wards in Jos, Nigeria were selected for study, one previously reported to have a high mean blood lead level (37 (SD 13) μg/dl) and one with a lower mean blood lead level (17 (SD 10) μg/dl) in young *** pertaining to potential risk factors for lead exposure were collected from children and adults in 34 ***: The mean (SD) blood lead concentration of 275 subjects, aged 3 weeks to 90 years, was 8.7 (5.7) μg/dl (range 1-34 μg/dl); 92 (34%) had concentrations ≥10 μg/*** multivariate analysis, an age of 5 years and under, flaking house paint, residence near a gasoline seller, male gender, increasing maternal and paternal education, and use of a lead ore eye cosmetic were independently associated with greater blood lead *** ownership was associated with reduced lead *** with the low-lead ward, residence in the high-lead ward remained significantly associated with greater lead values, indicating that additional factors likely contribute to lead ***: Although the cause of increased lead levels in Jos appears to be multi-factorial, several remediable sources contribute to lead exposure in Nigeria.

关键词：儿童铅中毒儿科病房血铅浓度铅接触铅暴露浓度值多变量分析血铅水平

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一种解析和预测分子筛结构的新颖方法

一种解析和预测分子筛结构的新颖方法

Knowledge of radiation exposure associated with common trauma imaging modalities among orthopaedic surgeons,emergency medicine physicians,and general surgeons in the United States

第18届全国分子筛学术大会

作者：郭鹏苏婕刘磊峰 Jiho Shin Jung gi Min Hyun June Choi Suk Bong Hong Alex g.greenaway Paul A.wright Paul A.Cox Zou Xiaodong 斯德哥尔摩大学 Centre for Ordered Nanoporous Materials Synthesis School of Environmental Science and EngineeringPOSTECH School of Pharmacy and Biomedical Sciences University of Portsmouth

我们报道了一种结合了结构解析和结构预测分子筛的新方法,并且成功合成出预测的分子筛结构。通过旋转电子衍射(Rotation Electron Diffraction,RED),我们发现未知分子筛ZSM-25和己知分子筛PAU(属于立方晶系,a=34.34 A)结构的强衍射点分... 详细信息

我们报道了一种结合了结构解析和结构预测分子筛的新方法,并且成功合成出预测的分子筛结构。通过旋转电子衍射(Rotation Electron Diffraction,RED),我们发现未知分子筛ZSM-25和己知分子筛PAU(属于立方晶系,a=34.34 A)结构的强衍射点分布相同(见图1a-d)。利用ZSM-25实验结构因子的振幅和PAU结构因子的相角成功解析出ZSM-25的结构(见图1e,f)。我们称这种方法为强点衍射法(Strong Reflection Approach)。ZSM-25属于立方晶系(a=44.22A),一个晶胞含有1440个四面体原子和2880个氧原子。通过对比PAU和ZSM-25的结构(见图1g,h),我们发现利用强点衍射法可以建立更加复杂的,具有相同结构单元的立方结构(a值分别为54.07A和63.87A)。最后,我们成功合成出这两个更加复杂的结构,分别命名为PST-20和PST-25(见图1i,j)。这份工作己经被国际知名期刊《自然》接收。

关键词：旋转电子衍射结构解析结构预测强点衍射法分子筛

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World Journal of Emergency Medicine 2023年第4期14卷 294-301页

作者： Fady Y.Hijji Andrew D.Schneider Matthew D.Thomas Joseph g.Lyons Daniel D.Bohl Jennifer L.Jerele Michael J.Prayson Department of Orthopaedic Surgery Wright State University Boonshoft School of MedicineDayton OH 45409USA Department of Orthopaedic Surgery Rush University Medical CenterChicago IL 60612USA

BACKgROUND:Few contemporary studies have assessed physicians’knowledge of radiation exposure associated with common imaging studies,especially in trauma *** purpose of this study was to assess the knowledge of physicians involved in caring for trauma patients regarding the effective radiation doses of musculoskeletal(MSK)imaging studies routinely utilized in the trauma ***:An electronic survey was distributed to United States orthopaedic surgery,general surgery,and emergency medicine(EM)residency *** were asked to estimate the radiation dose for common imaging modalities of the pelvis,lumbar spine,and lower extremity,in terms of chest X-ray(CXR)*** estimates were compared to the true effective radiation ***,participants were asked to report the frequency of discussing radiation risk with ***:A total of 218 physicians completed the survey;102(46.8%)were EM physicians,88(40.4%)wereorthopaedicsurgeons,and28(12.8%)*** underestimated the effective radiation doses of nearly all imaging modalities,most notably for pelvic computed tomaography(CT)(median 50 CXR estimation vs.162 CXR actual)and lumbar CT(median 50 CXR estimation vs.638 CXR actual).There was no difference between physician specialties regarding estimation accuracy(P=0.133).Physicians who regularly discussed radiation risks with patients more accurately estimated radiation exposure(P=0.007).CONCLUSION:The knowledge among orthopaedic and general surgeons and EM physicians regarding the radiation exposure associated with common MSK trauma imaging is *** investigation with larger scale studies is warranted,and additional education in this area may improve care.

关键词： Radiation dosage Radiation exposure Radiation protection X-ray Emergency department

根据厄瓜多尔通古拉瓦火山1999～2006年喷发产生的火山灰颗粒结构估算减压速率

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世界地震译丛 2012年第6期43卷 67-73页

作者： H. M. N. wright K. V. Cashman P. A. Mothes M. L. Hall A. g. Ruiz J, L. Pennec 于红梅(译) 罗浩(校) 吕春来(复校) 不详中国地震局地球物理研究所中国科学院地质与地球物理研究所

岩浆供给率的小变化可能引起喷发类型突然转变,所以很难监测安山质火山持续低到中等程度的喷发活动。因为无法直接测量岩浆补给,所以必须发展间接测量的健全技术。在此我们证实,厄瓜多尔通古拉瓦火山1999～2006年武尔卡诺式和斯特隆博... 详细信息

岩浆供给率的小变化可能引起喷发类型突然转变,所以很难监测安山质火山持续低到中等程度的喷发活动。因为无法直接测量岩浆补给,所以必须发展间接测量的健全技术。在此我们证实,厄瓜多尔通古拉瓦火山1999～2006年武尔卡诺式和斯特隆博利式喷发的火山碎屑的晶体结构能提供关于岩浆上升和喷发动力学的定量信息,而这是利用其他监测手段很难获得的。我们说明喷发碎屑的结晶程度受岩浆补给率(MSR)的控制;相比低岩浆补给阶段,高岩浆补给阶段喷发的火山灰结晶程度明显偏低。该关系用低压下(50MPa)有效的脱气和由喷发前有效时间控制的脱气驱动的结晶作用最容易解释。我们的数据还表明,观察到的从低岩浆补给率时的间歇性武尔卡诺式喷发到高岩浆补给率时的相对连续的斯特隆博利式喷发和熔岩喷泉之间的转变,可以用气泡通过(斯特隆博利式)覆盖火山口不同黏度(和结晶度)的岩浆上升或气泡在该岩浆之下(武尔卡诺式)捕获来解释。

关键词：喷发类型厄瓜多尔火山灰颗粒结构拉瓦速率减压估算

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南极洲赖特谷万达盐湖中铬的垂直迁移

海洋与湖沼 1992年第6期23卷 591-598页

作者：于昇松 W.J.green g.A.Delanoy 中国科学院盐湖研究所西宁810008 School of Interdisciplinary studies Miami University OhioU.S.A. Department of Chemistry Miami UniversityOhioU.S.A.

南极洲万达湖湖水上部为氧化环境,铬浓度较低,Cr^(6+)占主导地位,主要以CrO_4^(2-)形式存在;下部为还原环境,铬浓度高,Cr^(3+)为主,以Cr(OH)_2^+和Cr(OH)^(2+)形式存在。湖水中锰、铁的氧化物及氢氧化物颗粒对铬离子的吸附和释放过程,... 详细信息

南极洲万达湖湖水上部为氧化环境,铬浓度较低,Cr^(6+)占主导地位,主要以CrO_4^(2-)形式存在;下部为还原环境,铬浓度高,Cr^(3+)为主,以Cr(OH)_2^+和Cr(OH)^(2+)形式存在。湖水中锰、铁的氧化物及氢氧化物颗粒对铬离子的吸附和释放过程,控制了湖水铬浓度的变化。

关键词：铬盐湖万达湖南极洲

A database of experimentally measured lithium solid electrolyte conductivities evaluated with machine learning

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npj Computational Materials 2023年第1期9卷 2265-2278页

作者： Cameron J.Hargreaves Michael W.gaultois Luke M.Daniels Emma J.Watts Vitaliy A.Kurlin Michael Moran Yun Dang Rhun Morris Alexandra Morscher Kate Thompson Matthew A.wright Beluvalli-Eshwarappa Prasad Frédéric Blanc Chris M.Collins Catriona A.Crawford Benjamin B.Duff Jae Evans Jacinthe gamon guopeng Han Bernhard T.Leube Hongjun Niu Arnaud J.Perez Aris Robinson Oliver Rogan Paul M.Sharp Elvis Shoko Manel Sonni William J.Thomas Andrij Vasylenko Lu Wang Matthew J.Rosseinsky Matthew S.Dyer Department of Chemistry University of LiverpoolLiverpool L697ZDUK Leverhulme Research Centre for Functional Materials Design Materials Innovation FactoryUniversity of LiverpoolLiverpool L73NYUK Department of Computer Science University of LiverpoolLiverpool L693BXUK Stephenson Institute for Renewable Energy University of LiverpoolLiverpool L697ZFUK

The application of machine learning models to predict material properties is determined by the availability of high-quality *** present an expert-curated dataset of lithium ion conductors and associated lithium ion conductivities measured by *** *** dataset has 820 entries collected from 214 sources;entries contain a chemical composition,an expert-assigned structural label,and ionic conductivity at a specific temperature(from 5 to 873°C).There are 403 unique chemical compositions with an associated ionic conductivity near room temperature(15–35°C).The materials contained in this dataset are placed in the context of compounds reported in the Inorganic Crystal Structure Database with unsupervised machine learning and the Element Movers *** dataset is used to train a CrabNet-based classifier to estimate whether a chemical composition has high or low ionic *** classifier is a practical tool to aid experimentalists in prioritizing candidates for further investigation as lithium ion conductors.

关键词： spectroscopy lithium classifier

Application of the Alpha Shape Method to Visualize and Analyze Surgical Motion

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Surgical Science 2017年第11期8卷 464-480页

作者： Mohammad R. Maddah Caroline g. L. Cao Department of Biomedical Industrial and Human Factors Engineering Wright State University Dayton OH USA

Simulators play an important role in training surgery residents to perform laparoscopy surgery. Some of these simulators have the capability to track tool motion to assess performance. However, most have not utilized the data to analyze trainee performance in a meaningful way. The alpha shape method can be used to construct a geometric surface based on motion data to enable visualization of the performance, while the surface derivative (surface/time to completion)—efficiency—can be used as a metric to evaluate complex surgical performance. The utility of the alpha shape method was demonstrated in a pick-and-place task, where the motion path of laparoscopic graspers was recorded by a position sensor, miniBIRD 500?. An alpha shape method was used to measure the surface area of the 3D points in space occupied by the tool tips during task performance. Results show that the surface derivative measure alone may be able to model the speed-accuracy tradeoff function, thereby simplifying the analysis and evaluation of complex motion in surgical performance.

关键词： Surface Alpha Shape Motion Visualization Performance Assessment