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浅海声学和信号处理

声学技术 1975年第1期6卷 193-202页

作者： R.S.Thomas j.C.Moldon j.M ross 雷良颖加拿大大西洋防御研究中心(DREA)

一、引言在过去几年中,DREA 研究了水下声信道的统计性质。对于在声纳和水下通讯中使用的有效的信号处理系统,这些性质对它的结构和性能有很大的影响。对这些水下信道的描述,主要是考虑信号传播和混响特性。前者影响到所接收的信号或回... 详细信息

一、引言在过去几年中,DREA 研究了水下声信道的统计性质。对于在声纳和水下通讯中使用的有效的信号处理系统,这些性质对它的结构和性能有很大的影响。对这些水下信道的描述,主要是考虑信号传播和混响特性。前者影响到所接收的信号或回波的形状,而表面、海水和海底产生的混响或不希望有的反向散射是检测回波时的背景干扰。在许多情况下。

关键词：海底混响归一化自协方差互相关性标准方差扩散函数海面反射频率展宽信号处理反向散射强度空间相干性背景干扰多普勒频移填充脉冲声学混响强度

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Prediction of Impending Drought Scenarios Based on Surface and Subsurface Parameters in a Selected Region of Tropical Queensland, Australia

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j.urnal of Water Resource and Protection 2021年第8期13卷 605-631页

作者： Bithin Datta Dilip Kumar Roy j.nathan j. Kelley Bradley Stevens Discipline of Civil Engineering College of Science and Engineering James Cook University Townsville Australia Irrigation and Water Management Division Bangladesh Agricultural Research Institute Joydebpur Bangladesh

Droughts occur in all climatic regions around the world costing a large expense to global economies. Reasonably accurate prediction of drought events helps water managers proper planning for utilization of limited water resources and distribution of available waters to different sectors and avoid catastrophic consequences. Therefore, a means to create a simplistic approach for forecasting drought conditions with easily accessible parameters is highly desirable. This study proposes and evaluates newly developed accurate prediction models utilizing various hydrologic, meteorological, and geohydrology parameters along with the use of Artificial Neural Network (ANN) models with various forecast lead times. The present study develops a multitude of forecasting models to predict drought indices such as the Standard Precipitation Index with a lead-time of up to 6 months, and the Soil Moisture Index with a lead-time of 3 months. Furthermore, prediction models with the capability of approximating surface and groundwater storage levels including the ross River Dam level have been developed with relatively high accuracy with a lead-time of 3 months. The results obtained from these models were compared to current values, revealing that ANN based approach can be used as a simple and effective predictive model that can be utilized for prediction of different aspects of drought scenarios in a typical study area like Townsville, North Queensland, Australia which had suffered severe recent drought conditions for almost six recent years (2014 to early 2019).

关键词： Drought Prediction Artificial Neural Network Prediction Model Dam Levels Aquifer Salinity Water Storage Townsville Queensland

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解剖生理学修订本

1983～1998年间加拿大不列颠哥伦比亚海岸大蓝鹭(Ardea herodias)卵内多氯二苯并-p-二恶英(PCDDs)和二苯并呋喃(PCDFs)的时空趋势监测

1989年

作者：罗斯（ross j.S.）威尔森（Wilson K.j.W.）洪茂雄译

本书介绍了解剖生理学

ISBN: (纸本)7506204789

本书介绍了解剖生理学

关键词：人体解剖学∶人体生理学人体生理学∶人体解剖学

来源：汇雅图书（南通市图书馆... 评论

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AMBIO－人类环境杂志 2001年第7期30卷 416-427页

作者： j.hn E. Elliott Megan L. Harris Laurie K. Wilson Philip E. Whitehead ross j. Norstrom 李康民加拿大野生动物保护机构 Lorax Environmental 196 Spencer Rd.RD5 Lake TaraweraRotorua New Zealand

从1983～1998年,沿加拿大不列颠哥伦比亚海岸,我们监测了21处大蓝鹭(Ardea herodias)结巢处卵内多氯二苯并-p-二恶英(PCDDs)、二苯并呋喃(PCDFs)和多氯联苯(PCBs)的污染情况。20世纪90年代早期,主要的同类物如1,2,3,7,8-PnCDD、1,2,3,6,... 详细信息

从1983～1998年,沿加拿大不列颠哥伦比亚海岸,我们监测了21处大蓝鹭(Ardea herodias)结巢处卵内多氯二苯并-p-二恶英(PCDDs)、二苯并呋喃(PCDFs)和多氯联苯(PCBs)的污染情况。20世纪90年代早期,主要的同类物如1,2,3,7,8-PnCDD、1,2,3,6,7,8-HxCDD、2,3,7,8-TCDD、2,3,7,8-TCDF、1,2,3,7,8,9-HxCDD和2,3,4,7,8-PnCDF在纸浆厂分子氯漂白技术被新的漂白技术替代以及氯基酚类木材保存剂和抗木材变色剂的使用被严格地限制之后有显著下降。被捕食的鱼与大蓝鹭卵内污染物水平之间的强正线性回归说明,每天在本地摄食的食物是大蓝鹭暴露于污染物的一个重要路径。从1985年到1991年,在某些栖居地的大蓝鹭卵内所测到的毒当量浓度(TEQs)足以在小鹭体内产生胚胎毒性。尽管PCDD/Fs有所减少,但估计整个80年代有些城市中苍鹭栖居地的毒当量浓度由于多氯联苯的作用而居高不下。

关键词： 1983-1998年加拿大不列颠哥伦比亚海岸大蓝鹭多氯二苯并-p-二恶英二苯并呋喃趋势监测鸟卵动物监测海洋监测

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Clinical outcomes of patients with two small hepatocellular carcinomas

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World j.urnal of Hepatology 2021年第10期13卷 1439-1449页

作者： Anh Duy Pham Karl Vaz Zaid S Ardalan Marie Sinclair ross Apostolov Sarah Gardner Ammar Maj.ed Gauri Mishra Ning Mao Kam Kurvi Patwala Numan Kutaiba Niranj.n Arachchi Sally Bell Anouk T Dev j.hn S Lubel Amanda j.Nicoll Siddharth Sood William Kemp Stuart K Roberts Michael Fink Adam G Testro Peter W Angus Paul j.Gow The Victorian Liver Transplant Unit Austin HealthHeidelberg 3084VictoriaAustralia Department of Gastroenterology Alfred HealthMelbourne 3000VictoriaAustralia The Melbourne Liver Group Melbourne 3000VictoriaAustralia The University of Melbourne Parkville 3010VictoriaAustralia Central Clinical School Monash UniversityMelbourne 3004VictoriaAustralia Department of Gastroenterology and Hepatology Monash HealthClayton 3168VictoriaAustralia Department of Radiology Austin HealthHeidelberg 3084VictoriaAustralia Department of Radiology Eastern HealthBox Hill 3128VictoriaAustralia Department of Gastroenterology Western HealthFootscray 3011VictoriaAustralia Department of Gastroenterology Eastern HealthBox Hill 3128VictoriaAustralia Department of Gastroenterology Royal Melbourne HospitalParkville 3050VictoriaAustralia

BACKGROUND Management of single small hepatocellular carcinoma(HCC)is straightforward with curative outcomes achieved by locoregional therapy or *** transplantation is often considered for multiple small or single large *** of two small HCC whether presenting synchronously or sequentially is less *** To define the outcomes of patients presenting with two small *** Retrospective review of HCC databases from multiple institutions of patients with either two synchronous or sequential HCC≤3 cm between j.nuary 2000 and March *** outcomes were overall survival(OS)and transplant-free survival(TFS).RESULTS 104 patients were identified(male n=89).Median age was 63 years(interquartile range 58-67.75)and the most common aetiology of liver disease was hepatitis C(40.4%).59(56.7%)had synchronous HCC and 45(43.3%)had sequential.36 patients died(34.6%)and 25 were transplanted(24.0%).1,3 and 5-year OS was 93.0%,66.1% and 62.3% and 5-year post-transplant survival was 95.8%.1,3 and 5-year TFS was 82.1%,45.85% and 37.8%.When synchronous and sequential groups were compared,OS(1,3 and 5 year synchronous 91.3%,63.8%,61.1%,sequential 95.3%,69.5%,64.6%,P=0.41)was similar but TFS was higher in the sequential group(1,3 and 5 year synchronous 68.5%,37.3% and 29.7%,sequential 93.2%,56.6%,48.5%,P=0.02)though this difference did not remain during multivariate *** TFS in patients presenting with two HCC≤3 cm is poor regardless of the timing of the second *** patients presenting with two small HCC should be considered for transplantation.

关键词： Hepatocellular carcinoma Liver cancer Prognosis Transplantation Transplant-free survival

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用于ESM系统设计的压缩接收机

电子信息对抗技术 1987年第4期 18-27页

作者： Klaus D.Breuer j.mes j.Whelehan Kenneth ross 李振初

自从1958年伊顿公司的 W·怀特发明压缩接收机以来,它一直被视为电子战系统中的一种有很大潜力的信号分析手段。它能工作在较宽的射频频带上,并能提供每个存在的辐射源的有关数据,例如频率和幅度。

关键词：压缩接收机微扫接收机色散延迟线 ESM 接收机带宽输出脉冲电子战系统电子对抗系统信道化接收机非搜索式接收机射频脉冲电磁脉冲

Assessing Relative Dispersion

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Applied Mathematics 2017年第11期8卷 1572-1589页

作者： Thomas C. Redd Amal El Moghraby Tyler j. Tillman Department of Mathematics North Carolina A & T State University Greensboro NC USA Department of Mathematics Davidson County Community College Winston-Salem NC USA

We assess the four point method of relative dispersion proposed by j.nes and Winkler to identify the hyperbolic traj.ctories of a system. We sample a discrete analog to a quasi-geostrophic, single layered flow field and perform a comparison of the dispersion of neighboring points after iteration. We evaluate our method by performing a transformation to (x, y) space and comparing the traj.ctories corresponding to maximum dispersion with the (x, y) values of traj.ctories of the Standard map, derived from traditional techniques. We perform a similar evaluation using a 2D ross by wave. We show that the method of relative dispersion is able to generate 2nd order accurate (on the scale of the discretization) hyperbolic traj.ctories.

关键词： Relative Dispersion Finite Strain Hyperbolic Traj.ctories Standard Map rossby Wave

Utilization of Extracorporeal Membrane Oxygenation for Pulmonary Toxicity Caused by Inhaled Synthetic Cannabinoid. A Harbinger of Future Complications Associated with Inhaled Cannabinoid Products

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International j.urnal of Clinical Medicine 2020年第2期11卷 53-61页

作者： Robert March Paul Guentert Elizabeth Kloska-Kearney David Kwak Cody Yerger Michael McBride j. R. Maj.wski ross McCauley j.rdan Hatch j.cob Speybroeck Allen Betts Mat Marsee Sufyan Zackariya Faisal Shariff Shivani Patel Ali Sualeh Anthony Thomas Edward Evans Donald Westerhausen Mark Walsh Saint j.seph Regional Medical Center Mishawaka IN USA Indiana University School of Medicine—South Bend South Bend IN USA Department of Pulmonary and Critical Care Medicine Methodist Hospital Indianapolis IN USA

There has been a dramatic increase in medical complications related to synthetic cannabinoid (SC) use either by water pipe or vaping. The legalization of marij.ana in an increasing number of states has also resulted in an increase in a number of complications related not j.st to marij.ana, but in particular, to SC. As a result, there have been recent increased reports of acute pulmonary inj.ry related to inhaled SC products. We describe that rarely endotracheal intubation with mechanical ventilation has been required to treat the acute respiratory distress syndrome (ARDS) and the diffuse alveolar hemorrhage (DAH) associated with the acute toxicity of SC inhalation. We describe the second reported case of successful utilization of mechanical ventilation and extracorporeal membrane oxygenation (ECMO) in order to treat acute pulmonary toxicity caused by SC inhalation by a water pipe. While the exact pathophysiology of these interesting and recent pulmonary complications is unknown, the recent increase in exposure to SC via water pipe systems and vaping suggests that there will be many more cases of patients that will require ECMO as a form of life-saving therapy.

关键词： Synthetic Cannabinoid Extracorporeal Membrane Oxygenation Mechanical Ventilation Water Pipe Vaping Pulmonary Toxicity

Blunt Trauma to the Penis Post Penile Augmentation Surgery: Case Report

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Open j.urnal of Urology 2014年第11期4卷 132-136页

作者： j.mes j. Elist Vaheh Shirvanian Alireza Hosseini Omead Mirgoli Attending Staff Cedars Sinai Medical Center Los Angeles CA USA Midtown Medical Center Columbus GA USA Iran University of Medical Sciences Tehran Iran ross University School of Medicine Roseau Commonwealth of Dominica

Introduction: Blunt trauma to the penis is a rare but potentially serious inj.ry that can occur by various mechanisms (e.g., kicks, accidents, sexual activity, and falls). The most common clinical presentation is sudden pain, swelling, and discoloration. Depending on the type and severity of inj.ry, management can include conservative treatment or surgery, with the ultimate goal being the prevention of delayed complications. Case presentation: A 30-year-old male presented with penile pain, swelling, and redness as a result of blunt trauma to his penis 1 week after penile enhancement surgery using a subcutaneous soft silicone implant. Once the patient’s blood pressure was stabilized, surgical management consisted of exploration with evacuation of a large hematoma and removal of the subcutaneous penile implant to avoid further perioperative and postoperative bleeding. Discussion: Postoperative bleeding is a risk factor associated with almost all types of surgical procedures, and its prevention is best achieved by identification and elimination of potential causes pre- and postoperatively. Hypertension is another risk factor for excessive postsurgical bleeding, particularly bleeding associated with prosthetic implant surgeries, and should be considered for any potential surgical patient. Conclusion: With penile prosthesis and implant surgery, hypertension is an especially serious risk factor. Early surgical management is warranted in cases involving a maj.r hematoma and swelling. Even cases with minimal bleeding should be evaluated in a timely manner, with surgical treatment indicated, rather than watchful waiting, to prevent further damage to the penis.

关键词： Penile Hematoma Hypertension Penile Implant Penile Enlargement Penile Enhancement