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Octave-spanning coherent supercontinuum generation in silicon on insulator from 1.06μm to beyond 2.4μm

Light(Science & Applications) 2017年第1期6卷 235-242页

作者： Neetesh Singh Ming Xin Diedrik Vermeulen Katia Shtyrkova Nanxi Li Patrick T Callahan emir Salih Magden Alfonso Ruocco Nicholas Fahrenkopf Christopher Baiocco Bill P-P Kuo Stojan Radic Erich Ippen Franz X Kärtner Michael R Watts Research Laboratory of Electronics Massachusetts Institute of TechnologyCambridgeMA 02139USA John A.Paulson School of Engineering and Applied Science Harvard UniversityCambridgeMA 02138USA College of Nanoscale Science and Engineering SUNY Polytechnic InstituteAlbanyNY 12203USA Department of Electrical and Computer Engineering University of California San DiegoLa JollaCA 92039USA Centre for Free Electron Laser Science(CFEL)-DESY and University of Hamburg Hamburg 22607Germany

Efficient complementary metal-oxide semiconductor-based nonlinear optical devices in the near-infrared are in strong *** to two-photon absorption in silicon,however,much nonlinear research is shifting towards unconventional photonics *** this work,we demonstrate the generation of an octave-spanning coherent supercontinuum in a silicon waveguide covering the spectral region from the near-to *** input pulses of 18 pJ in energy,the generated signal spans the wavelength range from the edge of the silicon transmission window,approximately 1.06 to beyond 2.4μm,with a−20 dB bandwidth covering 1.124–2.4μ*** octave-spanning supercontinuum was also observed at the energy levels as low as 4 pJ(−35 dB bandwidth).We also measured the coherence over an octave,obtaining|g_()12^(1)(λ)>90%,in good agreement with the *** addition,we demonstrate optimization of the third-order dispersion of the waveguide to strengthen the dispersive wave and discuss the advantage of having a soliton at the long wavelength edge of an octave-spanning signal for nonlinear *** research paves the way for applications,such as chip-scale precision spectroscopy,optical coherence tomography,optical frequency metrology,frequency synthesis and wide-band wavelength division multiplexing in the telecom window.

关键词： coherence integrated photonics silicon supercontinuum

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消失的海岸线

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世界建筑导报 2016年第1期31卷 49-49页

作者： emir Tigrel

乌黑的墙壁,蓝领工业区,布鲁克林的海军船坞,丰富的带有象征性元素的工业遗址遍布在这块基地。该方案采用先进的成像技术尝试去＂补全＂这些失落的人工制品和空间,使这里变成一个新的曼哈顿＂硅谷＂,改造旧建筑的组装码头,高科技企业的... 详细信息

乌黑的墙壁,蓝领工业区,布鲁克林的海军船坞,丰富的带有象征性元素的工业遗址遍布在这块基地。该方案采用先进的成像技术尝试去＂补全＂这些失落的人工制品和空间,使这里变成一个新的曼哈顿＂硅谷＂,改造旧建筑的组装码头,高科技企业的聚集地。通过构建一个没有墙壁的博物馆,建筑结构上的再生来重现已经消失的美国工业发电站的记忆,对比华尔街的＂铜牛＂,布鲁克林海军船坞将会是一个＂芭蕾舞者＂。历史影像的分析被小心谨慎地映射在基地上,从而实现一个连贯且感情强烈的叙事体,蔓延在破碎的基地环境上。

关键词：海岸线布鲁克林高科技企业工业区人工制品成像技术建筑结构基地环境

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Training and learning curves in minimally invasive pancreatic surgery:from simulation to mastery

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Journal of Pancreatology 2020年第2期3卷 101-110页

作者： Haney Caelán M. Karadza emir Limen Eldridge F. de Santibanes Martin Kinny-Köster Benedict Müller Philip C. Bintintan Vasile V. Kulu Yakub Hackert Thilo Müller-Stich Beat-Peter Nickel Felix Department of General Visceral and Transplantation SurgeryHeidelberg University HospitalHeidelbergGermany Department of Surgery Hospital Italiano de Buenos AiresBuenos AiresArgentina Department of Surgery Clinic Beau-SiteBernSwitzerland Department of Surgery University Hospital Cluj NapocaCluj NapocaRomania

Background:Minimally invasive pancreatic surgery(MIPS)has developed over the last 3 decades and is nowadays experiencing an increased interest from the surgical *** increasing awareness of both the public and the surgical community on patient safety,optimization of training has gained *** implementation of MIPS we propose 3 training *** first phase focuses on developing basic skills and procedure specific skills with the help of simulation,biotissue drills,video libraries,live case observations,and training *** second phase consists of index procedures,fellowships,and proctoring programs to ensure patient safety during the first *** the third phase the surgeons aim is to safely implement the procedure into standard practice while minimizing learning curve related excess morbidity and *** selection,skills assessment,feedback,and mentoring are important methods to optimize this *** residual learning curve can reach up to 100 cases depending on the surgeons’previous experience,selection of cases,and definition of the parameters used to assess the learning *** training and high procedural volume are key to implementing MIPS safely.

关键词： Laparoscopic surgery Minimally invasive surgery Robotic surgery Training

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博尔赫斯传第一版

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1994年

作者：（美）埃米尔·罗德里格斯·莫内加尔（emir Rodriguez Monegal）陈舒李点译

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Functional Copolymer/Organo-MMT Nanoarchitectures. X. Synthesis and Characterization of Preintercalated MMT-Octadecyl Amide/Imides of Maleic and Itaconic Acids and Their Nanocomposites

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材料科学与工程（中英文版） 2011年第4期5卷 363-377页

作者： Zakir M.O. Rzayev A. Emur Soylemez Burhan Davarcioglu emir B. Denktas Institute of Science ＆ Engineering Division of Nanoscienee and Nanomedieine Hacettepe University Beytepe Ankara 06800Turkey Department of Physics Faculty of Science ＆ Art Aksaray University Aksaray 68100 Turkey

Functional copolymer/organo-silicate [octadecyl amine (ODA) surface modified montmorillonite (MMT)] layered nanocomposites have been synthesized by interlamellar complex-radical copolymerization of preintercalated complexes of maleic anhydride (MA)... ODA-MMT and itaconic acid (IA)... ODA-MMT as ‘nano-reactors’ with n-butyl methacrylate (BMA) as an internal plasticization comonomer in the presence of radical initiator. It was demonstrated that intercalation and exfoliation in situ processes are accompatied by physical (H-bonding) and chemical (amidization/imidization) interfacial interactions of monomers with ODA-MMT which are responsible for the formation of nanostructural hybrid architectures. The synthesized copolymers and their nanocomposites were investigated by X-ray diffraction, TGA-DSC, SEM and TEM methods. It was found that nanocomposites’ crystallinity, thermal properties and morphology strongly depended on the force of interfacial monomer... ODA-MMT complex-formation and the amount of flexible n-butyl ester linkages. An increase in both of these parameters leads to enhanced intercalation and exfoliation in situ processes of copolymer chains and the formation of hybrid nanocomposites.

关键词：纳米复合材料有机蒙脱土十八烷基胺共聚合成共聚物衣康酸马来酰胺甲基丙烯酸丁酯

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Pentamidine in Pneumocystis jirovecii prophylaxis in heart transplant recipients

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World Journal of Transplantation 2016年第1期6卷 193-198页

作者： Adem Ilkay Diken Ozlem Er?en Diken Onur Hanedan Seyhan Y?lmaz Ata Niyazi Ecevit emir Erol Adnan Yal??nkaya Department of Cardiovascular Surgery Hitit University Faculty of Medicine Department of Chest Diseases Hitit University Faculty of Medicine Department of Cardiovascular Surgery Turkiye Yuksek Ihtisas Hospital

Despite advances in transplantation techniques and the quality of post-transplantation care, opportunistic infections remain an important cause of complications. Pneumocystis jirovecii(P. jirovecii) is an opportunistic organism, represents an important cause of infections in heart transplantation patients. Almost 2% to 10% of patients undergoing cardiac transplantation have Pneumocystis pneumonia. Prophylaxis is essential after surgery. Various prophylaxis regimes had been defined in past and have different advantages. Trimethoprim/sulfamethoxazole(TMP/SMX) has a key role in prophylaxis against P. jirovecii. Generally, although TMP/SMX is well tolerated, serious side effects have also been reported during its use. Pentamidine is an alternative prophylaxis agent when TMP/SMX cannot be tolerated by the patient. Structurally, pentamidine is an aromatic diamidine compound with antiprotozoal activity. Since it is not effectively absorbed from the gastrointestinal tract, it is frequently administered via the intravenous route. Pentamidine can alternatively be administered through inhalation at a monthly dose in heart transplant recipients. Although, the efficiency and safety of this drug is well studied in other types of solid organ transplantations, there are only few data about pentamidine usage in heart transplantation. We sought to evaluate evidence-based assessment of the use of pentamidine against P. jirovecii after heart transplantation.

关键词： Pentamidine Prophylaxis Trimethoprim Heart transplantation Pneumocystis pneumonia Pneumocystis jirovecii Pneumocystis carinii

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