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| 1 | Infrared upconversion imaging in nonlinear metasurfaces显示文摘Infrared imaging is a crucial technique in a multitude of applications,including night vision,autonomous vehicle navigation,optical tomography,and food quality control.Conventional infrared imaging technologies,however,require the use of materials such as narrow bandgap semiconductors,which are sensitive to thermal noise and often require cryogenic cooling.We demonstrate a compact all-optical alternative to perform infrared imaging in a metasurface composed of GaAs semiconductor nanoantennas,using a nonlinear wave-mixing process.We experimentally show the upconversion of short-wave infrared wavelengths via the coherent parametric process of sum-frequency generation.In this process,an infrared image of a target is mixed inside the metasurface with a strong pump beam,translating the image from the infrared to the visible in a nanoscale ultrathin imaging device.Our results open up new opportunities for the development of compact infrared imaging devices with applications in infrared vision and life sciences. | Rocio Camacho-Morales Davide Rocco Lei Xu Valerio Flavio Gili Nikolay Dimitrov Lyubomir Stoyanov Zhonghua Ma Andrei Komar Mykhaylo Lysevych Fouad Karouta Alexander Dreischuh Hark Hoe Tan Giuseppe Leo Costantino De Angelis Chennupati Jagadish Andrey E.Miroshnichenko Mohsen Rahmani Dragomir N.Neshev | 2021 | Advanced Photonics2021，3，3： | 11 |
| 2 | Risk factors for colonoscopic perforation: A population-based study of 80118 cases显示文摘AIM: To assess the incidence and risk factors associated with colonic perforation due to colonoscopy. METHODS: This was a retrospective cross-sectional study. Patients were retrospectively eligible for inclusion if they were 18 years and older and had an inpatient or outpatient colonoscopy procedure code in any facility within the Geisinger Health System during the period from January 1, 2002 to August 25, 2010. Data are presented as median and inter-quartile range, for continuous variables, and as frequency and percentage for categorical variables. Baseline comparisons across those with and without a perforation were made using the two-sample t -test and Pearson's χ2 test, as appropriate.RESULTS: A total of 50 perforations were diagnosed out of 80118 colonoscopies, which corresponded to an incidence of 0.06% (95%CI: 0.05-0.08) or a rate of 6.2 per 10000 colonoscopies. All possible risk factors associated with colonic perforation with a P -value < 0.1 were checked for inclusion in a multivariable logbinomial regression model predicting 7-d colonic perforation. The final model resulted in the following risk factors which were significantly associated with risk of colonic perforation: age, gender, body mass index, albumin level, intensive care unit (ICU) patients, inpatient setting, and abdominal pain and Crohn's disease as indications for colonoscopy. CONCLUSION: The cumulative 7 d incidence of colonic perforation in this cohort was 0.06%. Advanced age and female gender were significantly more likely to have perforation. Increasing albumin and BMI resulted in decreased risk of colonic perforation. Having a colonoscopy indication of abdominal pain or Crohn's disease resulted in a higher risk of colonic perforation. Colonoscopies performed in inpatients and particularly the ICU setting had substantially greater odds of perforation. Biopsy and polypectomy did not increase the risk of perforation and only three perforations occurred with screening colonoscopy. | Uzair Hamdani Raza Naeem Fyeza Haider Pardeep Bansal Michael Komar David L Diehl H Lester Kirchner | 2013 | World Journal of Gastroenterology2013，19，23： | 9 |
| 3 | 长大桥梁工程的先进节段预制技术及其应用显示文摘桥梁,作为基础设施的核心部分之一,在高速铁路、高速公路、城市地铁或轻轨国家交通网络的发展中扮演了重要角色。在中国高速铁路、高速公路或客运专线交通基础设计建设中,桥梁的设计和施工经常成为决定性因素。在过去的几十年中,桥梁设计者和建造者把节段预制技术(例如,小节段混凝土精确预制、大尺寸混凝土预制和大尺度钢结构预制)推进到了一个新高度,为交通领域的决策者提供了坚实的技术平台。本文简要介绍了这种先进的预制节段技术及其在世界范围内的著名应用范例。 | John J. Sun Gernot Komar | 2009 | 公路2009，54，5： | 6 |
| 4 | 中国湖南舜皇山和大围山夏末鸟类显示文摘于2002年8月21日至9月14日对位于湖南省西南部的舜皇山自然保护区和位于湖南省东北部的大围山自然保护区的鸟类区系进行了调查. 在舜皇山自然保护区记录到58种鸟类, 在大围山自然保护区则记录到43种鸟类. 在两个保护区内共采集51种186号标本, 这些标本现保存在美国堪萨斯大学自然历史博物馆和生物多样性研究中心; 还对另外8种保护鸟类进行了拍照. 调查期间发现大部分种类于近期刚完成繁殖; 有14种古北界迁徙种类把两个保护区作为停留地或作为越冬地. 还对灰喉山淑鸟、小燕尾、斑背燕尾在水平和垂直分布范围的扩张进行了报道. | Oliver KOMAR Brett W.BENZ 陈国君 | 2005 | Zoological Research2005，26，1： | 3 |
| 5 | Transforming bilayer MoS2 into single-layer with strong photoluminescence using UV-ozone oxidation显示文摘在射出设备的光的单个层的瞬间 2 的使用要求创新方法提高它的低光致发光(PL ) 量产量。在这个工作,我们报导有强壮的 PL 的单个层的瞬间 2 能被氧化准备用紫外臭氧的氧化的 bilayer 瞬间 2 。当与剥落得机械地的单个层的瞬间 2, 相比紫外臭氧的氧化准备的单个层的瞬间 2 的 PL 紧张到 2030 次被提高,我们显示出那。我们证明中立激子和 trions (控告的激子) 的 PL 紧张能极大地在氧化瞬间 2 样品被提高。这些结果提供新奇卓见进单个层的瞬间 2 的 PL 改进。 | Weitao Su Naresh Komar Steve J. Spencer Ning Dai Debdulal Roy | 2015 | Nano Research2015，8，12： | 2 |
| 6 | High performance waterborne coatings based on dispersions of a solid epoxy resin and an amine-functional curing agent 显示文摘 | Galgoei E C P Komar C Elmore J D | 1999 | Journal of Coatings Technology1999，71，891： | 1 |
| 7 | A fem that hyperaccumulates arsenic显示文摘 | Ma L Q Komar K M Tu C Zhang W H Cai Y Kennelley E D | 2001 | Nature2001，409，： | 1 |
| 8 | Acute pancreatitis显示文摘 | Dubagunta S Still CD Komar MJ | 2001 | J Am Osteopath Assoc2001，，： | 1 |
| 9 | Waterborne epoxy protectivecoatings for metal显示文摘 | Elmore J D Kincaid D S Komar P C | 2002 | Journal of Coatings Technology2002，74，931： | 1 |
| 10 | Waterborne ep- oxy protective coatings for metal显示文摘 | ELMORE J D KINCAID D S KOMAR P C | 2002 | Journal of Coatings Technolo- gy2002，74，931： | 1 |
| 11 | Clinical and histopathological aspects of cutaneous mastocytosis显示文摘 | Wolff K Komar M Petzelbauer P | 2001 | Leuk Res2001，25，7： | 1 |
| 12 | A fern that hyperaccumulates arsenic 显示文摘 | MA L Q KOMAR K M TU C | 2001 | Nature2001，409，： | 1 |
| 13 | Finite element description of nonlinear viscoelastic behaviour of technical fabric显示文摘 | KLOSOWSKI P KOMAR W WOZNICA K | 2009 | Construction and Building Materials2009，23，2： | 1 |
| 14 | Beach processes and sedimentation 显示文摘 | Komar P D | 1976 | Prentice-Hall Englewood Cliffs New Jersey1976，1976，： | 1 |
| 15 | Waterborne epoxy protective coatings for metal显示文摘 | Jim D Elmore Derek S Kincaid Pratap C Komar | 2002 | Journal of Coatings Technology2002，74，931： | 1 |
| 16 | Nutrition and enterocutaneous fistulas显示文摘 | Makhdoom ZA Komar MJ Still CD | | 0，，03： | 1 |
| 17 | Pure and Ce-doped KMg F3-scintillators显示文摘 | Gektin A Komar V Shlyahturov V | 1996 | IEEE Transactions on Nuclear Science1996，43，3： | 1 |
| 18 | Beach process and sedimentation 显示文摘 | Komar P D | 1998 | Prentice-Hall Inc1998，1544，： | 1 |
| 19 | The transformation suppressor Pdcd4 is a novel eukaryotic translation initiation factor 4A binding protein that inhibits translation显示文摘 | Yang HS Jansen AP Komar AA | 2003 | Mol Cell Biol2003，23，1： | 1 |
| 20 | A prospective diag- nostic accuracy study of lSF-fluorodeoxyglucose positron emission tomography/eomputed tomography, muhidetector row computed tomography, and magnetie resonance imaging in primary diagnosis and staging of pancreatic cancer 显示文摘 | Kauhanen SP Komar G Seppanen MP | 2009 | Ann Surg2009，250，6： | 1 |
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