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| 1 | Extraordinary evanescent field confinement waveguide sensor for mid-infrared trace gas spectroscopy显示文摘Nanophotonic waveguides are at the core of a great variety of optical sensors.These structures confine light along defined paths on photonic chips and provide light-matter interaction via an evanescent field.However,waveguides still lag behind free-space optics for sensitivity-critical applications such as trace gas detection.Short optical pathlengths,low interaction strengths,and spurious etalon fringes in spectral transmission are among the main reasons why on-chip gas sensing is still in its infancy.In this work,we report on a mid-infrared integrated waveguide sensor that successfully addresses these drawbacks.This sensor operates with a 107%evanescent field confinement factor in air,which not only matches but also outperforms free-space beams in terms of the per-length optical interaction.Furthermore,negligible facet reflections result in a flat spectral background and record-low absorbance noise that can finally compete with free-space spectroscopy.The sensor performance was validated at 2.566μm,which showed a 7 ppm detection limit for acetylene with only a 2 cm long waveguide. | Marek Vlk Anurup Datta Sebastián Alberti Henock Demessie Yallew Vinita Mittal Ganapathy Senthil Murugan Jána Jagerská | 2021 | Light(Science & Applications)2021,10,2: | 9 |
| 2 | 持续气道正压通气在预防阻塞性睡眠呼吸暂停患者心血管事件中的作用显示文摘阻塞性睡眠呼吸暂停(obstructive sleep apnea,OSA)导致阵发性低氧血症,夜间交感神经系统激活,血压、氧化应激和炎症指标的升高以及高凝血症。较大的胸内负压波动也会给心脏和大血管施加机械应力。基于人群和睡眠诊所的队列研究显示,OSA与心脑血管事件,特别是脑卒中相关。 | McEvoy RD Antic NA Heeley E Luo Y Ou Q Zhang X Mediano O Chen R Drager LF Liu Z Chen G Du B McArdle N Mukherjee S Tripathi M Billot L Li Q Lorenzi-Filho G Barbe F Redline S Wang J Arima H Neal B White DP Grunstein RR Zhong N Anderson CS 练桂丽 叶鹏 | 2016 | 中华高血压杂志2016,24,11: | 4 |
| 3 | Multiple haploids, triploids, and tetraploids found in modern-day “living fossil” Ginkgo biloba显示文摘Ginkgo biloba,the last extant representative of a lineage of Mesozoic gymnosperms,is one of the few seed plants with an exceptionally long(~300 Myr)evolutionary history free of genome-wide duplications(polyploidy).Despite this genome conservatism,we have recently found a viable spontaneous tetraploid Ginkgo sapling during routine screening of several plants,demonstrating that natural polyploidy is possible in Ginkgo.Here we provide a much wider flow cytometry survey of ploidy in some European Ginkgo collections,and own seedlings(>2200 individuals and~200 cultivars).We found a surprisingly high level of ploidy variation in modern-day Ginkgo and documented altogether 13 haploid,3 triploid,and 10 tetraploid Ginkgo plants or cultivars,most of them being morphologically distinct from common diploids.Haploids frequently produced polyploid(dihaploid)buds or branches.Tetraploids showed some genome size variation.The surveyed plants provide a unique resource for future Ginkgo research and breeding,and they might be used to accelerate the modern diversification of this nearly extinct plant lineage. | PetrŠmarda Lucie Horová Ondřej Knápek Heidi Dieck Martin Dieck Katarína Ražná Pavel Hrubík Laszlo Orlóci Laszlo Papp Kristýna Veselá Pavel Veselý Petr Bureš | 2018 | Horticulture Research2018,5,1: | 4 |
| 4 | Color 3D Reverse Engineering显示文摘This paper presents a principle and a method of col or 3D laser scanning measurement. Based on the fundamental monochrome 3D measureme nt study, color information capture, color texture mapping, coordinate computati on and other techniques are performed to achieve color 3D measurement. The syste m is designed and composed of a line laser light emitter, one color CCD camera, a motor-driven rotary filter, a circuit card and a computer. Two steps in captu ring object’s images in the measurement process: First, the color CCD camera ta kes the color picture of the object to be used for texture mapping in post proce ssing. Secondly, the monochrome data of the object is taken. The laser light emi tter is started; the light plane and the surface of the object intersect to form an undulate line, which forms an image on the CCD sensor. After the optic- electronics transformation, the electronic signals are captured and send to the computer. A new color 3D measurement model was derived, and a rapid calibra ting method to measure the system parameters was proposed--optical plane equat ion calibrating method. A calibrating drone was designed and built. 3D color sca nning system not only provides an object’s individual point information in the 3D coordinate, in the mean time, it provides the color information of each indiv idual point. This paper also advances a multi-frame auto-merging method, i.e. several frames of color 3D digital images measured are merged quickly according to their curvature characteristics and RGB information. Initial matching and fin e tune of the registration are completely performed by the computer; initial mat ching is via user interface in helping computer to find the transformation matri x. The transformation matrix is found according to the geometric characteristics chosen by hand. After the initial transformation matrix is found, fine tune of the registration is preformed to do the optimum adjustment to achieve a complete color textured 3D model. The system can be broadly used in the fields of produc t design, mold manufacture, multimedia, game development, animation, medical eng ineering, antique digitization, etc. | XU Zhi-qin 1, YE Sheng-hua 1, FAN Guang-zhao 2 (1. School of Precision Instrument and Opto-electronics Engineering, N ational Key Lab of Measurement Technology and Instrument, EMC, Tianjin University, Tianjin, China 2. Department of Mechanical Engineering, National Taiwan University, Taiwan, Chi na) | 2002 | 厦门大学学报(自然科学版)2002,41,S1: | 3 |
| 5 | 高密度脂蛋白可追踪脑卒中恢复情况显示文摘前瞻性队列研究质疑高密度脂蛋白胆固醇(high density lipoprotein cholesterol,HDL-C)在脑卒中风险预测中的价值。该文旨在探讨长期功能恢复与高密度脂蛋白(high density lipoprotein,HDL)蛋白质组和功能的关系。方法与结果:测定急性缺血性脑卒中后2个时间点(24小时,35例;96小时,20例)和35例对照组HDL蛋白组成和功能(胆固醇流出能力)的变化。 | Plubell DL Fenton AM Rosario S Bergstrom P Wilmarth PA Clark WM Zakai NA Quinn JF Minnier J Alkayed NJ Fazio S Pamir N 刘青(译) 刘莉(摘/审校) | 2020 | 中华高血压杂志2020,28,11: | 2 |
| 6 | 遗传性肥胖与心房颤动的关系显示文摘观察性研究已经确定了体质量指数(body mass index,BMI)与心房颤动之间的关联。然而,从观察性研究中推断因果关系会受到混杂因素、逆因果关系和偏倚的影响。该研究的主要目的是应用BMI的遗传学预测因子评估BMI与心房颤动之间的因果关系。方法:纳入1987-2002年期间在美国、冰岛和荷兰实施的7个前瞻性人群队列研究中基线无心房颤动的欧洲血统个体51 646人, | 刘莉 叶鹏 Chatterjee NA Giulianini F Geelhoed B Lunetta KL Misialek JR Niemeijer MN Rienstra M Rose LM Smith AV Arking DE Ellinor PT Heeringa J Lin H Lubitz SA Soliman EZ Verweij N Alonso A Benjamin EJ Gudnason V Stricker BH van der Harst P Chasman DI Albert CM | 2017 | 中华高血压杂志2017,25,2: | 2 |
| 7 | Evalu- ation of four animal models of intrarenal calcium deposition and assessment of the influence of dietary supplementation with es- sential fatty acids on calcification显示文摘 | BURGESS NA REYNOLDS TM WILLIAMS N | 1995 | Urol Res1995,23,4: | 1 |
| 8 | Abdominal aortic aneurysm surgery in a district general hospital: a 15-year experience 显示文摘 | Qureshi NA Rehman A Slater N | 2007 | Ann Vasc Surg2007,21,6: | 1 |
| 9 | Predictors of health care seeking for irritable bowel syndrome and nonulcer dyspepsia: a critieal review of the literature on symptom and psychosocial factors显示文摘 | Koloski NA Talley N J Boyce PM | 2001 | Am J Gastroenterol2001,96,5: | 1 |
| 10 | Effects of long-term NP-fertilization on abundance and diversity of arbuscular mycorrhizal fungi under a maize cropping system显示文摘 | NA BHADALUNG N SUW ANARIT A DELL B | 2005 | Plant and Soil2005,270,: | 1 |
| 11 | A2B adenosine receptor promotes mesenchymal stem cell differentiation to osteoblasts and bone formation in vivo 显示文摘 | Carroll SH Wigner NA Kulkarni N | 2012 | J Biol Chem2012,287,15: | 1 |
| 12 | Cerebral radiation necrosis 显示文摘 | Na A Haghigi N Drummond KJ | 2014 | Asia Pac J Clin Oncol2014,10,: | 1 |
| 13 | Endoretinal biopsy in establishing the diagnosis of uveitis:a clinicopathologic report of three cases显示文摘 | Cassoux N Charlotte F Rao NA | 2005 | Ocul Immunol Inflamm2005,13,1: | 1 |
| 14 | Electro- physiological correlates of respiratory failure in acute organo- phosphate poisoning: evidence for differential roles of musca- rinic and nicotinic stimulation显示文摘 | Jayawardane P Senanayake N Buekley NA | 2012 | Clin Toxicol(Phila)2012,50,4: | 1 |
| 15 | Elevated intakes of supplemental chromium improve glucose and insulin variables in individuals with type 2 diabetes显示文摘 | Anderson RA Cheng N Bryden NA | 1997 | Diabetes1997,46,: | 1 |
| 16 | A Catalytic Nanomaterial-based Optical Chemo-sensor Array 显示文摘 | Na N Zhang S C Wang S A Zhang X R | 2006 | Journal of the AmericanChemical Society2006,128,14: | 1 |
| 17 | Inhibition of TNF-alpha andIL-6 production by Aucubin through blockade of NF-kappaB acti-vation RBL-2H3 mast cells 显示文摘 | Jeong H J Koo H N Na H J | 2002 | Cytokine2002,18,: | 1 |
| 18 | Effect of intra-articu-lar hyaluronic injection on postural stability and risk of fall in pati-ents with bilateral knee osteoarthritis显示文摘 | Khalaj N Abu Osman NA Mokhtar AH | 2014 | Scientific World Journal2014,,81: | 1 |
| 19 | Antibacterial activity of chitosans and chitosan oligomers with different molecular weights显示文摘 | Hong K N Na Y P Shin H L | 2002 | International Journal of Food Microbiology2002,,74: | 1 |
| 20 | Loss of TGF-beta type Ⅱ receptor in fibroblasts promotes mammary carcinoma growth and invasion through upregulation of TGF-alpha-, MSP- and HGF- mediated signaling networks显示文摘 | Cheng N Bhowmick NA Chytil A | 2005 | Oncogene2005,24,32: | 1 |