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Polarization-robust mid-infrared carpet cloak with minimized lateral shift

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Photonics Research 2021年第6期9卷 944-949页

作者： YAO HUANG JINGJING ZHANG JINHUI ZHOU BO QIANG ZHENGJI XU LIN LIU JIFANG TAO NICOLAS KOSSOWSKI QIJIE WANG YU LUO School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore State Key Laboratory of Millimeter Waves Southeast UniversityNanjing 210096China Electrical Engineering Kulicke&Soffa Pte.Ltd.Singapore 554369Singapore School of Microelectronics Science and Technology Sun Yat-sen UniversityZhuhai 519082China School of Information and Engineering Shandong UniversityQingdao 266237China School of Physical and Mathematical Sciences Nanyang Technological UniversitySingapore 637371Singapore

With the advent and rapid development of the transformation optics and metamaterials,invisibility cloaks have captivated much attention in recent *** most cloaking schemes suffer from limited bandwidth,the carpet cloak,which can hide an object on a reflecting plane,can operate over a broadband frequency ***,the carpet cloaks experimentally realized thus far still have several *** example,the quasi-conformal mapping carpet cloak leads to a lateral shift of the reflected light ray,while the birefringent carpet cloak only works for a specific *** this work,we propose a conformal transformation scheme to tackle these two problems *** an example,we design a mid-infrared carpet cloak in a silicon platform and demonstrate its polarization-insensitive property as well as the minimized lateral shift over a broad frequency band from 24 to 28.3 THz.

关键词： polarization conformal Polarization

Intestinal type gastric adenocarcinoma with unusual synchronous metastases to the colorectum and bladder

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World Journal of Clinical Cases 2015年第6期3卷 533-537页

作者： Isaac Seow-En Francis Seow-Choen Department of General Surgery Singapore General Hospital Seow-Choen Colorectal Centre pte ltd

A 75-year-old male presented with difficult defecationand increasing urinary frequency over a few months. He had a significant history of previous partial gastrectomy for gastric carcinoma 20 years prior. Computed tomography of the abdomen and pelvis showed extensive lymphadenopathy, a gastric mass and rectal as well as bladder wall thickening with bilateral ureterohydronephrosis. Normal looking serosal surfaces of the bladder and bowel were seen on laparoscopy and a defunctioning ileostomy was created. Gastroscopy revealed a malignant mass while cystoscopy and sigmoidscopy found extensive tumour growth lining the mucosal surfaces. Biopsies from all sites were compatible with intestinal type adenocarcinoma of gastric origin with few signet ring cells. Metabolic response to palliative chemotherapy was good and the patient's symptoms have improved on follow-up four months post ileostomy. We discuss the immunohistochemical profile of the tumour and review the literature.

关键词： Gastric adenocarcinoma Intestinal-type Metastasis Colorectum Bladder

Nitric oxide synthase and heme oxygenase expressions in human liver cirrhosis

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World Journal of Gastroenterology 2006年第4期12卷 588-594页

作者： Beatrice J Goh Bee Tee Tan Wei Min Hon Kang Hoe Lee Hoon Eng Khoo Department of Biochemistry Yong Loo Lin School of Medicine National University ofSingapore Department of Medicine Yong Loo Lin School of Medicine National University of Singapore Research Biolabs pte ltd

AIM： Portal hypertension is a common complication of liver cirrhosis. Intrahepatic pressure can be elevated in several ways. Abnormal architecture affecting the vasculature, an increase in vasoconstrictors and increased circulation from the splanchnic viscera into the portal system may all contribute. It follows that endogenous vasodilators may be able to alleviate the hypertension. We therefore aimed to investigate the levels of endogenous vasodilators, nitric oxide （NO） and carbon monoxide （CO） through the expression of nitric oxide synthase （NOS） and heme oxygenase （HO）. METHOD： Cirrhotic （n = 20） and non-cirrhotic （n = 20） livers were obtained from patients who had undergone surgery. The mRNA and protein expressions of the various isoforms of NOS and HO were examined using competitive PCR, Western Blot and immunohistochemistry. RESULTS： There was no significant change in either inducible NOS （iNOS） or neuronal NOS （nNOS） expressions while endothelial NOS （eNOS） was up- regulated in cirrhotic livers. Concomitantly, caveolin-1, an established down-regulator of eNOS, was upregulated. Inducible HO-1 and constitutive HO-2 were found to show increased expression in cirrhotic livers albeit in different Iocalizations. CONCLUSION： The differences of NOS expression might be due to their differing roles in maintaining liver homeostasis and/or involvement in the pathology of cirrhosis. Sheer stress within the hypertensive liver may induce increased expression of eNOS. In turn, caveolin-1 is also increased. Whether this serves as a defense mechanism against further cirrhosis or is a consequence of cirrhosis, is yet unknown. The elevated expression of HO-1 and HO-2 suggest that CO may compensate in its role as a vasodilator albeit weakly. It is possible that CO and NO have parallel or coordinated functions within the liver and may work antagonistically in the pathophysiology of portal hypertension.

关键词： Liver cirrhosis Nitric oxide synthase Heine oxygenase Gene expression Competitive PCR

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马耳他的农药管理

新农药 2005年第1期9卷 13-14页

作者：申继忠 Zagro singapore pte ltd

马耳他位于地中海中部的岛国，国土面积316平方公里，由5个岛屿组成，其中马耳他岛最大，面积246平方公里，多天然良港，第二大岛为戈佐岛，面积67平方公里。人口39．5万人(2002年)，主要是马耳他人，占总人口的90％，其余为阿拉伯人、... 详细信息

马耳他位于地中海中部的岛国，国土面积316平方公里，由5个岛屿组成，其中马耳他岛最大，面积246平方公里，多天然良港，第二大岛为戈佐岛，面积67平方公里。人口39．5万人(2002年)，主要是马耳他人，占总人口的90％，其余为阿拉伯人、意大利人、英国人等。马耳他语和英语为官方语言。属亚热带地中海式气候。年平均气温21．3度，最高气温40度，最低气温5度。年平均降水量560毫米。

关键词：马耳他人口中部地中海国土面积农药管理意大利亚热带气候最低气温

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从电视剧《小娘惹》看新加坡土生华人文化

青年文学家 2011年第6期 224-225页

作者：蓝洁 Aveeran(singapore)pte ltd

十五世纪初,华人移居到马来半岛和印尼,与当地马来人联姻生下的混血后代称"土生华人"。他们的文化既绝大部分承继了中华,但受到马来族影响,形成了一种特有的次文化。电视剧《小娘惹》从历史,民俗及日常生活角度切入,展示了服饰、刺绣、... 详细信息

十五世纪初,华人移居到马来半岛和印尼,与当地马来人联姻生下的混血后代称"土生华人"。他们的文化既绝大部分承继了中华,但受到马来族影响,形成了一种特有的次文化。电视剧《小娘惹》从历史,民俗及日常生活角度切入,展示了服饰、刺绣、饮食、建筑和诗歌等一系列的文化元素。论文透过日常生活形态,研究中华文明在新世纪文化融合中的角色,以及文化与国籍,地域之间的关系。

关键词：峇峇娘惹华族根源马来色彩殖民传统融合传承

Effect of grain structure on the mechanical properties of a Monel alloy fabricated by laser-based directed energy deposition

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Journal of Materials Science & Technology 2023年第33期164卷 129-139页

作者： Ze Chen Wei Fan Shubo Gao Yang Qi Sastry Yagnanna Kandukuri Kun Zhou singapore Centre for 3D Printing School of Mechanical and Aerospace EngineeringNanyang Technological University50 Nanyang AvenueSingapore 639798Singapore DNV AS HøvikOslo 1363Norway

Monel K-500 is a Ni–Cu alloy widely used in the marine and offshore industry due to their superior resistance to corrosion in seawater and hence easily *** address this problem,laser-based directed energy deposition(LDED)is used to repair or refabricate these high-value worn *** optimize the mechanical properties of repaired parts,the commonly applied solution and aging is not ideal because it also changes the properties of the base ***,in situ control of the grain structures during the LDED process becomes an effective approach for high-performance *** this study,we fabricated a duplex grain structure with small grain size and low texture intensity using low laser power and scanning *** duplex microstructure consists of short columnar grains and zigzag-distributed fine equiaxed *** formation of this grain structure is dependent on both the solidification and recrystallization *** strength of this grain structure is improved to 523.5 MPa without the sacrifice of ductility,which is instead 20%higher than that of the counterpart consisting of typical columnar grains due to the grain refinement and crack *** mechanical properties of the alloy with the duplex grain structure are even comparable to heat-treated Monel K-500 fabricated by wire arc additive *** work provides valuable insights into the in situ optimization of the microstructure and mechanical properties of LDED-fabricated parts.

关键词： Additive manufacturing Directed energy deposition Monel alloy Grain structure Mechanical properties

THE FIRST CELL CYCLE CHANGES OF CLONED EMBRYOS IN A NONHU-MAN PRIMATE THE LONG TAILED MACAQUE （M. FASCICULARIS）

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THE FIRST CELL CYCLE CHANGES OF CLONED EMBRYOS IN A NONHU-MA...

第十九届国际动物学大会

作者： Soon-Chye Ng Naiqing Chen Wan-Yue Yip Swee-Lian Liow Guo-Qing Tong Paolo Martelli Dept of Obstetrics ＆ Gynaecology National University of Singapore Embryonics International pte ltd Gleneagles Hospital Singa-pore O＆G Partners Fertility Centre Gleneagles Hospital Singapore Dept of Obstetrics ＆ Gynaecology National University of Singapore Embryonics International pte ltd Gleneagles Hospital Singa-pore O＆G Partners Fertility Centre Gleneagles Hospital Singapore Dept of Obstetrics ＆ Gynaecology National University of Singapore Embryonics International pte ltd Gleneagles Hospital Singa-pore O＆G Partners Fertility Centre Gleneagles Hospital Singapore Dept of Obstetrics ＆ Gynaecology National University of Singapore Embryonics International pte ltd Gleneagles Hospital Singa-pore O＆G Partners Fertility Centre Gleneagles Hospital Singapore Dept of Obstetrics ＆ Gynaecology National University of Singapore Embryonics International pte ltd Gleneagles Hospital Singa-pore O＆G Partners Fertility Centre Gleneagles Hospital Singapore Dept of Obstetrics ＆ Gynaecology National University of Singapore Embryonics International pte ltd Gleneagles Hospital Singa-pore O＆G Partners Fertility Centre Gleneagles Hospital Singapore

＜正＞Production of genetically identical nonhuman primates through somatic cell nuclear transfer （SCNT） could accelerate medical research by providing suitable animal models for research and clarifying embryonic st...

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恋恋狮城

城市住宅 1997年第1期4卷 38-43页

作者：逸君 Jazz Inter Design pte ltd singapore

间隔:三室一厅这一两年,城市潮流彷佛有复古的趋势,人们的打扮,化妆、喇叭裤、齐膝裙,松糕鞋,闪亮亮的一身,黑漆漆的复古发型,尽是时光倒流般的重新演绎那个时代的一切。而令人惊讶的是,在看房子的经验里,在这狮城的房子里,也可嗅到怀... 详细信息

间隔:三室一厅这一两年,城市潮流彷佛有复古的趋势,人们的打扮,化妆、喇叭裤、齐膝裙,松糕鞋,闪亮亮的一身,黑漆漆的复古发型,尽是时光倒流般的重新演绎那个时代的一切。而令人惊讶的是,在看房子的经验里,在这狮城的房子里,也可嗅到怀旧的气息.复古的潮流不独是时装界的事,覆盖的层面可远超过你的想像。

关键词：室内设计室内装饰复古居室设计

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爱在异乡的季节

城市住宅 1996年第11期3卷 42-47页

作者：周静仪 Noble Design & Contracts pte ltd Singapore

介绍一些外国尤其是东南亚地区的室内设计,往往令撰稿人限前一亮;这不是崇洋媚外的心态,只是有时不禁会发牢骚。因为香港有部分设计师的作品,既重复别人,又重复自己,看得腻味,访问起来也会感觉乏味。香港有人所共知的局限,居所空间小,

关键词：住宅居室室内设计造型