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基于增强MRI的肿瘤3D定量技术的影像-病理学分析:一篇关于兴趣区选择放置的研究

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国际医学放射学杂志 2016年第2期 202-203页

作者： A.Chockalingam R.Duran j.H.Sohn R.Schernthaner j.chapiro H.Lee 王艾博 Russell H.Morgan Department of Radiology and Radiological Science Division of Vascular and Interventional Radiology The Johns Hopkins Hospital Sheikh Zayed Tower

摘要目的应用肿瘤增强3D定量分析技术[欧洲定量协会肝脏研究(q EASL)]对肝细胞癌经导管动脉化学栓塞(TACE)术后进行评价,分析兴趣区(ROI)设置对于结果的影响。方法阶段1:由阅片者AC利用系统方法对40例肝癌病人分别设置9个ROI(3个位于病... 详细信息

摘要目的应用肿瘤增强3D定量分析技术[欧洲定量协会肝脏研究(q EASL)]对肝细胞癌经导管动脉化学栓塞(TACE)术后进行评价,分析兴趣区(ROI)设置对于结果的影响。方法阶段1:由阅片者AC利用系统方法对40例肝癌病人分别设置9个ROI(3个位于病变的同侧肝叶,3个位于病

关键词：兴趣区病变同侧肝叶 MRI

新的血管造影成像平台可减低肝癌病人经动脉化学栓塞治疗时的辐射

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国际医学放射学杂志 2016年第1期 87-88页

作者： R.E.Schernthaner R.Duran j.chapiro Z.Wang j.F.H.Geschwind M.Lin 刘松 Russell H. Morgan Department of Radiology and Radiological Science Division of Vascular and Interventional Radiology The Johns Hopkins Hospital

摘要目的使用一种新C型臂成像平台,在保持诊断影像质量前提下,量化减少肝癌病人经动脉化学栓塞(TACE)时的辐射。方法该前瞻性研究符合HIPAA并经伦理审查委员会(IRB)批准。在双臂试验中,连续78例原发或继发肝癌病人在升级整合优化采集参... 详细信息

摘要目的使用一种新C型臂成像平台,在保持诊断影像质量前提下,量化减少肝癌病人经动脉化学栓塞(TACE)时的辐射。方法该前瞻性研究符合HIPAA并经伦理审查委员会(IRB)批准。在双臂试验中,连续78例原发或继发肝癌病人在升级整合优化采集参数和提高实时图像处理算法前后,采用一种C型臂成像平台行TACE。记录剂量面积乘积(DAP)和每个数字透视(DF)、数字减影血管造影(DSA)和锥形束CT(CBCT)的曝光时间。DSA影像质量由2名阅片者在4-等级量表上双盲、独立评估。结果 2组队列在病人特征和肿瘤负荷方面无显著差异。和旧平台相比,新系统显著减少

关键词：化学栓塞肝癌病人 TACE 动脉

Error field penetration in j-TEXT tokamak based on two-fluid drift-MHD model

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Chinese Physics B 2024年第4期33卷 545-551页

作者：王文徐涛张仪 the j-TEXT team State Key Laboratory of Advanced Electromagnetic Technology International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma PhysicsSchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China

An externally generated resonant magnetic perturbation can induce complex non-ideal MHD responses in their resonant *** have studied the plasma responses using Fitzpatrick's improved two-fluid model and program *** calculated the error field penetration threshold for *** addition,we find that the island width increases slightly as the error field amplitude increases when the error field amplitude is below the critical penetration ***,the island width suddenly jumps to a large value because the shielding effect of the plasma against the error field disappears after the *** scanning the natural mode frequency,we find that the shielding effect of the plasma decreases as the natural mode frequency ***,we obtain the m/n=2/1 penetration threshold scaling on density and temperature.

关键词： plasma responses drift-MHD model error field penetration

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Storing Freshwater Versus Storing Electricity in Power Systems with High Freshwater Electric Demand

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journal of Modern Power Systems and Clean Energy 2024年第2期12卷 323-333页

作者： Mubarak j.Al-Mubarak Antonio j.Conejo Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOHUSA Department of Electrical Engineering Kuwait UniversityP.O.Box 5969Safat 13060Kuwait Department of Integrated Systems Engineering and the Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOH 43210USA IEEE

We consider a power system whose electric demand pertaining to freshwater production is high(high freshwater electric demand),as in the Middle East,and investigate the tradeoff of storing freshwater in tanks versus storing electricity in batteries at the day-ahead operation *** storing freshwater and storing electricity increase the actual electric demand at valley hours and decrease it at peak hours,which is generally beneficial in term of cost and ***,to what extent?We analyze this question considering three power systems with different generation-mix configurations,i.e.,a thermal-dominated mix,a renewable-dominated one,and a fully renewable *** generation-mix configurations are inspired by how power systems may evolve in different countries in the Middle *** production uncertainty is compactly modeled using chance *** draw conclusions on how both storage facilities(freshwater and electricity)complement each other to render an optimal operation of the power system.

关键词： Power system operation freshwater production and transportation coordination day-ahead scheduling

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Analysis of ancient mass extinction recoveries in marine environments: generating strategies for managing outcomes of the current mass extinction

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National Science Review 2024年第1期11卷 8-10页

作者： David j.Bottjer Department of Earth Sciences University of Southern California

The defining feature of a mass extinction and its associated recovery is the global amount of extinction that occurred[1]. However, there is finer-scale detail to the story, as seen in the ongoing modern mass extinction(the sixth mass extinction), which exhibits variable effects among marine ecosystems and environments, and hence geographic areas [1].

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Global weirding at mass extinction horizons

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National Science Review 2024年第1期11卷 10-12页

作者： Gregory j.Retallack Department of Earth Sciences University of Oregon

A strong motivation for studying mass extinctions is understanding how current climatic and biodiversity crises will affect creatures living on land such as ourselves. Perhaps the question is: how bad can it get? In that case, terrestrial Permian-Triassic mass extinctions are an irresistible worst-case scenario [1].

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Necrotic enteritis and antibiotic-free production of broiler chickens:Challenges in testing and using alternative products

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Animal Nutrition 2024年第1期16卷 288-298页

作者： Robert j.Moore School of Science RMIT University

The global trend towards raising broiler chickens without the use of in-feed antibiotics(IFAs) means that there is an ongoing need to develop alternative treatments capable of delivering the benefits that IFAs previously provided. IFAs supported the productivity performance of chickens and played a key role in maintaining their health. Necrotic enteritis(NE) is an important disease of broilers that affects health,productivity, and welfare, and was previously well controlled by IFAs. However, with the reduction in IFA use, NE is resurgent in some countries. Vaccines and various feed additives, including pre-, pro-, and postbiotics, phytobiotics, fatty acids, and phage therapies have been introduced as alternative methods of NE control. While some of these feed additives have specific activity against the NE pathogen, Clostridium perfringens, most have the more general goal of reinforcing gut health. Extensive reviews of the effects of many of these feed additives on gut health have been published recently. Hence, rather than cover previously well reviewed areas of research this review focuses on the challenges and pitfalls in undertaking experimental assessment of alternative NE treatments and translating laboratory research to real world commercial production settings. The review is based on the author's particular experience,reading, thoughts, and analysis of the available information and inevitably presents a particular understanding that is likely to be at odds with others thinking on these issues. It is put forward to stimulate thinking and discussion on the issues covered.

关键词： Necrotic enteritis Clostridium perfringens Vaccines Feed additive Farm management

Decoding the genetic program of micronucleus formation: linking chromosomal instability to human disease

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Signal Transduction and Targeted Therapy 2024年第7期9卷 2840-2842页

作者： jörg Fahrer Division of Food Chemistry and Toxicology Department of ChemistryRPTU Kaiserslautern-Landau67663 KaiserslauternGermany

A recent study by Adams and colleagues published in Nature unveiled more than one hundred genes that are involved in micronucleus formation,1 which is a biomarker for genomic instability and associated with aging,cancer,and other disorders.2 As an outstanding achievement,the authors identified DSCC1(DNA Replication And Sister Chromatid Cohesion 1)as a critical gene protecting against early developmental defects,genomic instability,reduced proliferative capacity,cohesinopathy-related phenotypes,and tumor development in vivo.

关键词： chromosomal linking Replication

Water Vapor Information from Satellite and Its Applications

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Advances in Atmospheric Sciences 2024年第1期41卷 188-189页

作者： B.j.SOHN School of Earth and Environmental Sciences Seoul National UniversitySeoul 08826Korea

Water vapor is a critical component of the hydrological cycle because it plays a vital role in transporting water from one part of the cycle to *** vapor evaporated from surfaces such as oceans,lakes,and rivers conden... 详细信息

关键词： motion oceans lakes

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