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表面波器件制造工艺(下)

现代雷达 1979年第2期 114-129页

作者： henry i.smith 陈恩霖

三、刻蝕和剝离大多数表面波器件有金属薄膜的叉指结构。有时电极达几百甚至几千条,而且通常要求线条间不短路。在下节,我们将讨论形成这种金属电极结构的化学腐蚀法、离子轰击刻蚀法和剝离技术等并试图对各种技术的优点作出估价。化学... 详细信息

三、刻蝕和剝离大多数表面波器件有金属薄膜的叉指结构。有时电极达几百甚至几千条,而且通常要求线条间不短路。在下节,我们将讨论形成这种金属电极结构的化学腐蚀法、离子轰击刻蚀法和剝离技术等并试图对各种技术的优点作出估价。化学腐蝕相当于所需金属图形的光致抗蚀图形经曝光和显影后,通常需要烘烤

关键词：电子束光刻器件聚合物膜法向入射电子束加工表面波波浪基片衬底

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4000埃线宽掩模图形的光刻接触曝光

微纳电子技术 1975年第9期 45-48页

作者： henry i.smith 许义光

采用适当的掩模和AZ1350H抗蚀剂,用光刻接触曝光的方法已做出具有4000埃线宽的指状电极的表面声波换能器。曝光时间可在三倍范围变化,这表明:由于衍射引起的线条变宽是受光的非线性或光致抗蚀剂的曝光显影特性或两者兼而有之的影响。

关键词：光致抗蚀剂厚度指状电极 AZ 光刻胶抗腐蚀线宽光刻掩模

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Si芯片表面纳米粒子的粘结力及其干法清除

纳米科技 2007年第3期4卷 4-8页

作者：戴剑锋王青李维学李杨 henry i.smith 兰州理工大学有色金属新材料国家重点实验室甘肃兰州730050 美国麻省理工学院纳米结构与制造实验室 CambridgeMA02139

系统地研究了纳米粒子在硅芯片表面的各种附着力，如范德瓦耳斯力、塑性形变吸附力、毛细现象凝聚力、静电力和重力附加力，以及高速流体对它的拖动力和提拉力，并简单计算了在各种情况下这些力的大小。介绍了干法清除纳米污染物的几种... 详细信息

系统地研究了纳米粒子在硅芯片表面的各种附着力，如范德瓦耳斯力、塑性形变吸附力、毛细现象凝聚力、静电力和重力附加力，以及高速流体对它的拖动力和提拉力，并简单计算了在各种情况下这些力的大小。介绍了干法清除纳米污染物的几种新方法，如超临界流体清除法、高速气凝胶清除法、激光清除法、气相化学清除法和光化学清除法。

关键词：附着清除纳米粒子干法清洗

Combatting anthrax outbreaks across Nigeria's national land borders: need to optimize surveillance with epidemiological surveys

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infectious Diseases of Poverty 2024年第1期13卷 100-100页

作者： Hammed O.Mogaji Babatunde Adewale Stella i.smith Ehimario U.igumbor Chidumebi J.idemili Andrew W.Taylor-Robinson Yale School of Public Health Yale University New Haven USA Parasitology and Epidemiology Unit Federal University Oye-Ekiti Oye-Ekiti Nigeria Department of Public Health and Epidemiology Nigerian Institute of Medical Research Lagos Nigeria Department of Molecular Biology and Biotechnology Nigerian Institute of Medical Research Lagos Nigeria Centre for infectious Disease Research Nigerian Institute of Medical Research Lagos Nigeria Department of Public Health Walter Sisulu University Mthatha South Africa institute of Health Policy Management and Evaluation University of Toronto Toronto Canada College of Health Sciences Vin University Hanoi Vietnam Center for Global Health Perelman School of Medicine University of Pennsylvania Philadelphia USA

Background Anthrax is a non-contagious zoonotic disease caused by the Gram-positive,spore-forming bac-terium Bacillus *** is common in livestock and wild animals such as cattle,goats,sheep,camels,and *** humans,anthrax may occur after contact with contaminated carcasses or animal products like milk and *** best method to prevent anthrax in people is to ensure livestock are vaccinated,which significantly limits the risk of zoonotic spread to ***,the rate of vaccination of domesticated animals kept by nomadic pastoralists in West Africa is *** groups regularly cross over national boundaries with their grazing *** is a country that historically has done comparatively well to contain this public health ***,in 2023 several outbreaks of human disease appear linked to the consumption of anthrax-contaminated animal products brought into Nigeria by pastoralists from neighboring *** manifestations include skin sores or ulcers,nausea,vomiting,and *** article aims to raise awareness of recent outbreaks of anthrax in West Africa and to callfor a renewed focus on measures to combat this neglected public health concern to the *** body The imperative to pinpoint pivotal issues relating to the ongoing emergence of anthrax cases in Nigeria cannot be *** delving into the prevalence of anthrax in both livestock and human populations residing along Nigeria's borders,unraveling the genetic diversity and potential sources of *** strains,and identify-ing the primary animal host(s)responsible for transmission,we stand to enhance our understanding of this critical ***,investigating the multifaceted factors contributing to anthrax transmission,assessing community knowledge and practices,mapping common migratory routes of pastoralists,and formulating targeted interven-tion strategies tailored to the challenges of border communities,are each crucial steps towards eff

关键词： border Combat doubt

A step forward in breeding for ratooning ability in rice

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Molecular Plant 2024年第3期17卷 368-369页

作者： Amelia henry Rice Breeding innovations Department International Rice Research InstituteLos BanosLagunaPhilippines

Rice ratoon cropping,or the cultivation of tillers that have regrown from existing stem nodes of a harvested crop,is currently a hot topic in agriculture,and record-high ratoon crop yields have been achieved in China(Xu et al.,2021).Although rice ratoon cropping is most appropriate for certain agro-ecosystems with a suitable climate and cropping schedule,it is a promising strategy to simultaneously increase productivity while reducing inputs and *** ratoon cropping may thereby contribute to global food security and agro-ecosystem sustainability.

关键词： breeding cropping thereby

Harnessing endothelial cells and vascularization strategies for nerve regeneration

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Neural Regeneration Research 2024年第11期19卷 2337-2338页

作者： Papon Muangsanit Poppy smith Virology and Cell Technology Research Team National Center for Genetic Engineering and Biotechnology(BIOTEC)National Science and Technology Development Agency(NSTDA)PathumthaniThailand UCL Centre for Nerve Engineering UCLLondonUK Department of Pharmacology UCL School of PharmacyUCLLondonUK

Peripheral nerves are essential components of the human body’s communication system,transmitting signals between the central nervous system and various body *** resulting from trauma or disease can result in debilitating sensory and motor *** injuries,particularly those resulting in significant gaps in the nerve tissue,pose a formidable challenge for clinicians and *** their limitations,including limited availability and donor site morbidity,nerve autografts remain the clinical gold standard for treating nerve injuries.

关键词： injuries nerves donor

Advanced brain organoids for neuroinflammation disease modeling

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Neural Regeneration Research 2024年第1期19卷 154-155页

作者： Sonia Sabate-Soler henry Kurniawan Jens Christian Schwamborn Luxembourg Centre for Systems Biomedicine University of LuxembourgEsch-sur-AlzetteLuxembourg

Brain organoids mimic closely the embryonic human brain:Over the last decade,the development of human organoid systems has evolved *** tissues have been modeled with organoids,such as the gut,lung,liver,kidney retina and *** systems have a high cellular heterogeneity,with many cell types integrated into the same ***'cellular populations interact between and amongst each other in a cellular and molecular level,which represents an advantage with respects to monolayer 2D cell culture systems.

关键词： inflammation lung kidney

Hepatocardiorenal syndrome in liver cirrhosis:Recognition of a new entity?

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World Journal of Gastroenterology 2024年第2期30卷 128-136页

作者： henry H L Wu Amina Rakisheva Arvind Ponnusamy Rajkumar Chinnadurai Renal Research Kolling Institute of Medical ResearchRoyal North Shore Hospital&The University of SydneySt.Leonards(Sydney)2065New South WalesAustralia Department of Cardiology City Cardiological CenterAlmaty 050000Kazakhstan Department of Renal Medicine Royal Preston HospitalPreston PR29HTUnited Kingdom Donal O’Donoghue Renal Research Centre&Department of Renal Medicine Northern Care Alliance National Health Service Foundation TrustSalford M68HDUnited Kingdom

Emerging evidence and perspectives have pointed towards the heart playing an important role in hepatorenal syndrome(HRS),outside of conventional understanding that liver cirrhosis is traditionally considered the sole origin of a cascade of pathophysiological mechanisms directly affecting the kidneys in this *** the absence of established heart disease,cirrhotic cardiomyopathy may occur more frequently in those with liver cirrhosis and kidney *** is a specific form of cardiac dysfunction characterized by blunted contractile responsiveness to stress stimuli and altered diastolic relaxation with electrophysiological *** the clinical description of these potential cardiac-related complications of the liver,the role of the heart has traditionally been an overlooked aspect of circulatory dysfunction in *** from a physiological sense,temporality(prior onset)of cardiorenal interactions in HRS and positive effects stemming from portosystemic shunting demonstrated an important role of the heart in the development and progression of kidney dysfunction in cirrhotic *** this review,we discuss current concepts surrounding how the heart may influence the development and progression of HRS,and the role of systemic inflammation and endothelial dysfunction causing circulatory dysfunction within this *** temporality of heart and kidney dysfunction in HRS will be *** a subgroup of patients who receive portosystemic shunting,the dynamics of cardiorenal interactions following treatment is *** research to determine the unknowns in this topic is anticipated,hopefully to further clarify the intricacies surrounding the liver-heart-kidney connection and improve strategies for management.

关键词： Hepatorenal syndrome Cardiorenal syndrome Cirrhosis Cardiac dysfunction Circulatory dysfunction

Handheld bedside ultrasound in the diagnosis of myocarditis

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World Journal of Emergency Medicine 2024年第1期15卷 73-74页

作者： Frank Wheeler Robin Lahr James Espinosa Alan Lucerna henry Schuitema Department of Emergency Medicine Rowan University School of Osteopathic MedicineStratford 08084USA Emergency Medicine Residency Program Jeff erson HealthStratford 08084USA Department of Emergency Medicine and Associate Chief Medical Offi cer Stratford 08084USA

Myocarditis is a disease process that every emergency physician fears *** severity can be mild to life-threatening,and many cases are likely undetected because they are subclinical with nonspecifi c signs.[1]Subtle cardiac signs may be overshadowed by systemic symptoms of the underlying infectious ***,myalgias,lethargy,symptoms commonly associated with viral syndrome,can mask the life-threatening myocarditis that may be *** fact,in the United States Myocarditis Treatment Trial,almost 90%of patients reported symptoms consistent with a viral prodrome.[2]Ammirati et al[3]reported that 27%of patients with myocarditis had either reduced left ventricular ejection fraction,ventricular arrhythmias,or low cardiac ***,we present a case report,in which handheld point-of-care ultrasound was utilized at the bedside to aid in the critical diagnosis of *** the additional information provided through this imaging modality,this patient was able to be transferred to the appropriate tertiary care facility in an expeditious manner and receive possible defi nitive treatment.

关键词： diagnosis myocarditis Fever