|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Improved performance of UVC-LEDs by combination of high-temperature annealing and epitaxially laterally overgrown AlN/sapphire显示文摘We report on the performance of AlGaN-based deep ultraviolet light-emitting diodes(UV-LEDs)emitting at 265 nm grown on stripe-patterned high-temperature annealed(HTA)epitaxially laterally overgrown(ELO)aluminium nitride(AIN)/sapphire templates.For this purpose,the structural and electro-optical properties of ultraviolet-c light-emitting diodes(UVC-LEDs)on as-grown and on HTA planar AlN/sapphire as well as ELO AlN/sapphire with and without HTA are investigated and compared.Cathodoluminescence measurements reveal dark spot densities of 3.5×10^9 cm^-2,1.1×10^9 cm^-2,1.4×10^9 cm^-2,and 0.9×10^9 cm^-2 in multiple quantum well samples on as-grown planar AIN/sapphire,HTA planar AlN/sapphire,ELO AlN/sapphire,and HTA ELO AlN/sapphire,respectively,and are consistent with the threading dislocation densities determined by transmission electron microscopy(TEM)and high-resolution X-ray diffraction rocking curve.The UVC-LED performance improves with the reduction of the threading dislocation densities(TDDs).The output powers(measured on-wafer in cw operation at 20 mA)of the UV-LEDs emitting at 265 nm were 0.03 mW(planar AlN/sapphire),0.8 mW(planar HTA AlN/sapphire),0.9 mW(ELO AlN/sapphire),and 1.1 mW(HTA ELO AlN/sapphire),respectively.Furthermore,Monte Carlo ray-tracing simulations showed a 15%increase in light-extraction efficiency due to the voids formed in the ELO process.These results demonstrate that HTA ELO AlN/sapphire templates provide a viable approach to increase the efficiency of UV-LEDs,improving both the internal quantum efficiency and the light-extraction efficiency. | NORMAN SUSILO EVIATHAR ZIFFER SYLVIA HAGEDORN LEONARDO CANCELLARA CARSTEN NETZEL NEYSHA LOBO PLOCH SHAOJUN WU JENS RASS SEBASTIAN WALDE LUCA SULMONI MARTIN GUTTMANN TIM WERNICKE MARTIN ALBRECHT MARKUS WEYERS MICHAEL KNEISSL | 2020 | Photonics Research2020，8，4： | 4 |
| 2 | Endoscopic dilation of complete oesophageal obstructionswith a combined antegrade-retrograde rendezvoustechnique显示文摘AIM: To investigate the combined antegraderetrograde endoscopic rendezvous technique for complete oesophageal obstruction and the swallowing outcome.METHODS: This single-centre case series includes consecutive patients who were unable to swallow due to complete oesophageal obstruction and underwent combined antegrade-retrograde endoscopic dilation(CARD) within the last 10 years. The patients' demographic characteristics, clinical parameters, endoscopic therapy, adverse events, and outcomes were obtained retrospectively. Technical success was defined as effective restoration of oesophageal patency. Swallowing success was defined as either percutaneous endoscopic gastrostomy(PEG)-tube independency and/or relevant improvement of oral food intake, as assessed by the functional oral intake scale(FOIS)(≥ level 3).RESULTS: The cohort consisted of six patients [five males; mean age 71 years(range, 54-74)]. All but one patient had undergone radiotherapy for head and neck or oesophageal cancer. Technical success was achieved in five out of six patients. After discharge, repeated dilations were performed in all five patients. During follow-up(median 27 mo, range, 2-115), three patients remained PEG-tube dependent. Three of four patients achieved relevant improvement of swallowing(two patients: FOIS 6, one patient: FOIS 7). One patient developed mediastinal emphysema following CARD, without a need for surgery.CONCLUSION: The CARD technique is safe and a viable alternative to high-risk blind antegrade dilation in patients with complete proximal oesophageal obstruction. Although only half of the patients remained PEG-tube independent, the majority improved their ability to swallow. | Reto Bertolini Christa Meyenberger Paul Martin Putora Franziska Albrecht Martina Anja Broglie Sandro J Stoeckli Michael Christian Sulz | 2016 | World Journal of Gastroenterology2016，22，7： | 3 |
| 3 | Local cholinergic mechanisms mediate nitric oxide-dependent flow-induced vasorelaxation in vitro显示文摘 | Martin C M Beltran-Del-Rio A Albrecht A | 1996 | Am J Physiol1996，270，： | 1 |
| 4 | Ef- fects of ecological compensation meadows on arthropod diver- sity in adjacent intensively managed grassland显示文摘 | Albrecht Matthias Schmid Bernhard Obrist Martin K | 2010 | Biological Conservation2010，143，3： | 1 |
| 5 | Rapid exchange of large numbers of donor- and host leukocytes after human liver transplantation显示文摘 | Catharina Heerwagen Martin Schuster Albrecht Bornscheurer Lars Pape Erich Kirchner Hans-Juergen Schlitt Birgit Luettig J. Westermann | 2001 | Transplant International2001，，4： | 1 |
| 6 | Socio-economic status, growth, physical activity and fitness: The Madeira Growth Study显示文摘 | Duarte Freitas José Maia Gaston Beunen Albrecht Claessens Martine Thomis António Marques Maria Crespo Johan Lefevre | 2007 | Annals of Human Biology2007，，1： | 1 |
| 7 | Comparison of three-dimensional rotational angiography with digital subtraction angiography in the assessment of ruptured cerebral aneurysms 显示文摘 | Albrecht Hochmuth Uwe Spetzger Martin Schumacher | 2002 | American Journal of Neuroradiology2002，23，8： | 1 |
| 8 | Variation of DNA fingerprints among accessions within maize inbred lines and implications for identification of essentially derived varieties (Ⅱ) genetic and technical sources of variation in AFLP data and comparison with SSR data显示文摘 | MARTIN H JEROEN R V ALBRECHT E | | 0，，： | 1 |
| 9 | Non-invasive diagnosis of hepatic cirrhosis by transit-time analysis of an ultrasound contrast agent显示文摘 | Thomas Albrecht Martin JK Blomley David O Cosgrove Simon D Taylor-Robinson Vijay Jayaram Robert Eckersley Albrecht Urbank Jenny Butler-Barnes Nayna Patel | 1999 | The Lancet1999，，9164： | 1 |
| 10 | Effects of ecological compensation meadows on arthropod diversity in adjacent intensively managed grassland显示文摘 | Matthias Albrecht Bernhard Schmid Martin K. Obrist Beatrice Schüpbach David Kleijn Peter Duelli | 2009 | Biological Conservation2009，，： | 1 |
| 11 | Comparison of Linkage Disequilibrium in Elite European Maize Inbred Lines using AFLP and SSR Markers显示文摘 | Benjamin Stich Hans P. Maurer Albrecht E. Melchinger Matthias Frisch Martin Heckenberger Jeroen Rouppe Voort Johan Peleman Anker P. S?rensen Jochen C. Reif | 2006 | Molecular Breeding2006，，3： | 1 |
| 12 | Chemical and in vitro digestible dry matter composition of maize stalks after selection for stalk strength and stalk- rot resistance显示文摘 | ALBRECHT K A MARTIN M J RUSSEL W A | 1986 | Crop Science1986，26，： | 1 |
| 13 | Coordination Mechanisms for Supply Chain Planning 显示文摘 | Martin Albrecht | 2010 | Supply Chain Coordination Mechanisms2010，，2： | 1 |
| 14 | Effect of bacterial ice nuclei on the frequency and intensity of lightning activity inferred by the BRAMS model显示文摘 | Goncalves F L T Martins J A Albrecht R I | 2012 | Atmospheric Chemistry and Physics2012，12，13： | 1 |
| 15 | Pomegranate extracts potently suppress proliferation,xenograft growth and invasion of human prostate cancer cells显示文摘 | Lyndon M Gommersall Martin Albrecht Jiang Wenguo | 2003 | European Urology Supplements2003，2，6： | 1 |
| 16 | Protease activated receptor 2 and epidermal growth factor receptor are involved in the regulation of human sperm motility显示文摘瞄准:调查精子活动性的导致 tryptase 的减小的机制并且探索表皮的生长因素受体(EGF-R ) 和朊酶是否激活受体 2 (PAR-2 )- 联系小径被包含。方法:新鲜精液从健康施主被收集(n = 15 ) 。精液参数和质量根据世界健康组织被估计() 标准。游泳起来精子被修理并且使遭到了到 immunocy-tochemistry 和 immunoelectronmicroscopy,特定的抗体对 PAR-2 和 EGF-R 指导了。从游泳起来精子的蛋白质抽取被为两受体的与抗体的西方的弄污分析。精子的活动性被帮助计算机的精液分析评估。结果:Immunocytochemistry 在约 30% 检验人的呼喊的精子发现了 PAR-2 和 EGF-R。两受体在血浆膜是局部性的。象 tryptase 一样, PAR-2 合成收缩筋 SLIGKV 减少了精子活动性,并且这效果被二特定的 EGF-R 小径块 ers (AG1478 和 PD168393 ) 的申请禁止。结论:由通过 PAR-2 受体的 tryptase 的精子活动性的观察减小包含 EGF-R 小径。 | Karina Zitta Martin Albrecht Stephan Weidinger Artur Mayerhofer Frank Koehn | 2007 | Asian Journal of Andrology2007，9，5： | 1 |
| 17 | Non-Fusion Rates in Anterior Cervical Discectomy and Implantation of Empty Polyetheretherketone Cages显示文摘 | Ioannis Pechlivanis Theresa Thuring Christopher Brenke Marcel Seiz Claudius Thome Martin Barth Albrecht Harders Kirsten Schmieder | 2011 | Spine2011，，1： | 1 |
| 18 | Chemicaland in vitro digestible dry matter composition of maizestalks after selection for stalk strength and stalk-rot re-sistance显示文摘 | Albrecht K A Martin M J Russell W A | 1986 | Crop Science1986，26，5： | 1 |
| 19 | 耐磨涂料——含无机粒子的增强了耐划伤性的涂料:WO2005-40 289显示文摘提高了耐划伤性的涂料组合物含一种有机成膜基料(选自环氧树脂、聚氨酯、氨基树脂、丙烯酸树脂、乙烯基聚合物、本分醛树脂、苯乙烯-丁二烯共聚物、聚酯及醇酸树脂)和分散于水性或醇类溶剂中的无机粒子, | Albrecht Martin | 2005 | 涂料技术与文摘2005，26，5： | 0 |
| 20 | Jejunitis and brown bowel syndrome with multifocal carcinogenesis of the small bowel显示文摘This is the first report describing a case where prolonged,severe malabsorption from brown bowel syndrome progressed to multifocally spread small bowel adenocarcinoma. This case involves a female patient who was initially diagnosed with chronic jejunitis associated with primary diffuse lymphangiectasia at the age of 26 years. The course of the disease was clinically,endoscopically,and histologically followed for 21 years until her death at the age 47 due to multifocal,metastasizing adenocarcinoma of the small bowel. Multiple lipofuscin deposits(so-called brown bowel syndrome) and severe jejunitis were observed microscopically,and sections of the small bowel showed dense lymphoplasmacytic infiltration of the lamina propria as well as blocked lymphatic vessels. After several decades,multifocal nests of adenocarcinoma cells and extensive,flat,neoplastic mucosal proliferations were found only in the small bowel,along with a loss of the mismatch repair protein MLH1 as a long-term consequence of chronic jejunitis with malabsorption. No evidence was found for hereditary nonpolyposis colon carcinoma syndrome. This article demonstrates for the first time multifocal carcinogenesis in the small bowel in a malabsorption syndrome in an enteritis-dysplasia-carcinoma sequence. | Martin Raithel Tilman T Rau Alexander F Hagel Heinz Albrecht Thomas de Rossi Thomas Kirchner Eckhart G Hahn | 2015 | World Journal of Gastroenterology2015，21，36： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员