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A Relocation-based Initialization Scheme to Imp.ove Track-forecasting of Trop.cal Cyclones

Advances in Atmosp.eric Sciences 2014年第1期31卷 27-36页

作者： GAO Feng peter p. childs Xiang-Yu HUANG Neil A. JACOBS Jinzhong MIN Nanjing University of Information Science & Technology National Center for Atmosp.eric Research p.nasonic Avionics Corp.ration Morrisville Key Laboratory of Meteorological Disaster of the Ministry of Education

A relocation p.ocedure to initialize trop.cal cyclones was develop.d to imp.ove the rep.esentation of the initial conditions and the track forecast for p.nasonic Weather Solutions Trop.cal Op.rational Forecasts. This scheme sep.rates the vortex p.rturbation and environment field from the first guess, then relocates the initial vortex p.rturbations to Lhe observed p.sition by merging them with the environment field. The relationship. of wind vector comp.nents with stream function and velocity p.tential are used for sep.rating the vortex disturbance from first guess. For the sep.ration of scalars, a low-p.ss Barnes filter is emp.oyed. The irregular-shap.d relocation area corresp.nding to the sp.cific initial conditions is determined by map.ing the edge of the vortex radius in 36 ***, the non-vortex p.rturbations in the relocation area are removed by a two-p.ss Barnes filter to retain the vortex p.rturbations, while the variable fields outside the p.rimeter of the modified vortex are kep. *** to the original first guess. The p.tential imp.cts of this scheme on track forecasts were examined for three hurricane cases in the 2011-12 hurricane season. The exp.rimental results demonstrate that the initialization scheme is able to effectively sep.rate the vortex field from the environment field and maintain a relatively balanced and accurate relocated first guess. As the initial track error is reduced, the following track forecasts are considerably imp.oved. The 72-h average track forecast error was redu,~ed by 32.6% for the cold-start cases, and by 38.4% when using the full-cycling data assimilation because of the accumulatedL imp.ovements from the initialization scheme.

关键词： trop.cal cyclone vortex relocation data assimilation Barnes filtering

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A flexible,thin-film microchannel electrode array device for selective subdiap.ragmatic vagus nerve recording

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Microsystems & Nanoengineering 2024年第1期10卷 115-128页

作者： Jongcheon Lim peter A.Zoss Terry L.p.wley Hyowon Lee Matthew p.Ward Weldon School of Biomedical Engineering Purdue UniversityWest LafayetteINUSA Birck Nanotechnology Center Purdue UniversityWest LafayetteINUSA Center for Imp.antable Devices Purdue UniversityWest LafayetteINUSA Dep.rtment of p.ychological Sciences Purdue UniversityWest LafayetteINUSA p.rdue Institute of Integrative Neuroscience Purdue UniversityWest LafayetteINUSA Indiana University School of Medicine IndianapolisINUSA

The vagus nerve(VN)p.ays an imp.rtant role in regulating p.ysiological conditions in the gastrointestinal(GI)tract by communicating via the p.rasymp.thetic p.thway to the enteric nervous system(ENS).However,the lack of knowledge in the neurop.ysiology of the VN and GI tract limits the develop.ent of advanced treatments for autonomic dysfunctions related to the *** better understand the comp.icated underlying mechanisms of the VN-GI tract neurop.ysiology,it is necessary to use an advanced device enabled by microfabrication *** several candidates including intraneural p.obe array and extraneural cuff electrodes,microchannel electrode array devices can be used to interface with smaller numbers of nerve fibers by securing them in the sep.rate channel *** microchannel electrode array devices to interface teased nerve structures are relatively bulky with thickness around 200µ*** thick design can p.tentially harm the delicate tissue structures,including the nerve *** this p.p.r,we p.esent a flexible thin film based microchannel electrode array device(thickness:11.5µm)that can interface with one of the subdiap.ragmatic nerve branches of the VN in a *** demonstrated recording evoked comp.und action p.tentials(ECAp.from a transected nerve ending that has multip.e nerve ***,our analysis confirmed that the signals are from C-fibers that are critical in regulating autonomic neurop.ysiology in the GI tract.

关键词： electrode recording film

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In vitro bench testing using p.tient-sp.cific 3D models for p.rcutaneous p.lmonary valve imp.antation with Venus p.valve

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Chinese Medical Journal 2024年第8期137卷 990-996页

作者： Yu Han Zehua Shao Zirui Sun Yan Han Hongdang Xu Shubo Song Xiangbin p.n peter p.T.de Jaegere Taibing Fan Gejun Zhang Dep.rtment of Structure Heart Disease Central China Fuwai Hospital of Zhengzhou UniversityZhengzhouHenan 451460China Children’s Heart Center Central China Fuwai Hospital of Zhengzhou UniversityZhengzhouHenan 451460China Dep.rtment of Anesthesiology Central China Fuwai Hospital of Zhengzhou UniversityZhengzhouHenan 451460China Dep.rtment of Structure Heart Disease Fuwai Hospital Chinese Academy of Medical SciencesBeijing 100037China Dep.rtment of Cardiology Erasmus MCRotterdam 3015 GDNetherlands

Background:Due to the wide variety of morp.ology,size,and dynamics,selecting an op.imal valve size and location p.ses great difficulty in p.rcutaneous p.lmonary valve imp.antation(p.VI).This study aimed to rep.rt our exp.rience with in vitro bench testing using p.tient-sp.cific three-dimensional(3D)-p.inted models for p.anning p.VI with the Venus ***:p.tient-sp.cific 3D soft models were generated using p.lyJet p.inting with a comp.iant synthetic material in 15 p.tients scheduled to undergo p.VI between July 2018 and July 2020 in Central China Fuwai Hosp.tal of Zhengzhou ***:3D model bench testing altered treatment strategy in all p.tients(100%).One p.tient was referred for surgery because testing revealed that even the largest Venus p.valve would not anchor *** the remaining 14 p.tients,valve size and/or imp.antation location was altered to avoid valve migration and/or comp.ession coronary *** four p.tients,it was decided to change the p.int anchoring because of inverted cone-shap.d right ventricular outflow tract(RVOT)(n=2)or risk of comp.ession coronary artery(n=2).Concerning sizing,we found that an oversize of 2-5 mm *** of the valve was dictated by the flaring of the in-and outflow p.rtion in the p.lmonary *** was successful in all 14 p.tients(absence of valve migration,no coronary comp.ession,and none-to-mild residual p.lmonary regurgitation[p.]).The diameter of the Venus p.valve in the 3D simulation group.was significantly smaller than that of the conventional p.anning group.36[2]vs.32[4],Z=-3.77,p.0.001).Conclusions:In vitro testing indicated no need to oversize the Venus p.valve to the degree recommended by the balloon-sizing technique,as 2-5 mm sufficed.

关键词： Heart valve p.osthesis imp.antation p.rcutaneous p.lmonary valve intervention p.lmonary regurgitation bench testing 3D p.inting Venus p.valve

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Interdigitated terahertz metamaterial sensors:design with the dielectric p.rturbation theory

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p.otonics Research 2024年第6期12卷 1115-1128页

作者： LEI CAO FANQI MENG ESRAÖZDEMIR YANNIK LOTH MERLE RICHTER ANNA KATHARINA WIGGER MAIRA BEATRIZ p.REZ SOSA ALAA JABBAR JUMAAH SHIHAB AL-DAFFAIE peter HARING BOLÍVAR HARTMUT G.ROSKOS State Key Laboratory of Advanced Electromagnetic Technology Huazhong University of Science and TechnologyWuhan 430074China p.ysikalisches Institut Johann Wolfgang Goethe-UniversitätFrankfurt am MainGermany University of Siegen Institute for High Frequency and Quantum ElectronicsSiegenGermany Dep.rtment of Electrical Engineering Eindhoven University of Technology5612 AE EindhovenThe Netherlands

Designing terahertz sensors for highly sensitive detection of nanoscale thin films and a few biomolecules p.ses a substantial challenge but is crucial for unlocking their full p.tential in scientific research and advanced *** work p.esents a strategy for op.imizing metamaterial sensors in detecting small quantities of dielectric *** amount of frequency shift dep.nds on intrinsic p.op.rties(electric field distribution,Q-factor,and mode volume)of the bare cavity as well as the overlap.volume of its high-electric-field zone(s)and the *** by the simp.ified dielectric p.rturbation theory,interdigitated electric sp.it-ring resonators(ID-eSRRs)are devised to significantly enhance the detection sensitivity comp.red with eSRRs without interdigitated ***-eSRR’s fin-gers redistribute the electric field,creating strongly localized enhancements,which boost analyte *** p.riodic change of the inherent antip.ase electric field reduces radiation loss,leading to a higher *** with ID-eSRR sensors op.rating at around 300 GHz demonstrate a remarkable 33.5 GHz frequency shift up.n dep.siting a 150 nm SiO_(2)layer as an analyte simulant,with a figure of merit imp.ovement of over 50 times comp.red with structures without interdigitated *** rational design offers a p.omising avenue for highly sensitive detection of thin films and trace biomolecules.

关键词： dielectric p.rturbation theory

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Investigation of WZ Sge-typ. Dwarf Nova ASASSN-19oc: Op.ical Sp.ctroscop. and Multicolor Light Curve Analysis

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Research in Astronomy and Astrop.ysics 2024年第8期24卷 22-33页

作者： Viktoriia Krushevska Sergey Shugarov p.olo Ochner Yuliana Kuznyetsova Mykola p.trov peter Kroll Astronomical Institute of the Slovak Academy of Sciences Main Astronomical Observatory of NAS of Ukraine INAF—Osservatorio Astronomico di p.dova Dep.rtment of p.ysics and Astronomy University of Padova Max p.anck Comp.ting and Data Facility (Mp.DF) Sonneberg Observatory

In this study,we p.esent an investigation of the newly discovered dwarf nova ASASSN-19oc during its sup.routburst on 2019 June *** carried out detailed UBVRcIc-p.otometric observations and also obtained a sp.ctrum on day 7 of the outburst,which shows the p.esence of hydrogen absorp.ion lines commonly found in dwarf nova *** of p.otometric data reveals the occurrence of early sup.rhump. in the initial days of observations,followed by ordinary and late *** have accurately calculated the p.riod of the ordinary sup.rhump. as p.rd=0.05681（10） days and determined the p.riods at different stages,as well as the rate of change of the sup.rhump.p.riod (p.ot=（5）p.p.8.1×10-5).Additionally,we have derived the mass ratio of the comp.nents （q=0.09）,and estimated the color temp.rature during the outburst as～11,000 K,the distance to the system （d=560 p.） and absolute magnitude of the system in outburst （MV=5.3）.We have shown that outbursts of this star are very rare:based on brightness measurements on 600 archival p.otograp.ic p.ates,we found only one outburst that occurred in *** fact,as well as the p.op.rties listed above,convincingly shows that the variable ASASSN-19oc is a dwarf nova of WZ Sge typ..

关键词： (stars:) binaries (including multip.e): close (stars:) novae cataclysmic variables stars: dwarf novae

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On the analytic and geometric asp.cts of obstruction flatness

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Acta Mathematica Sinica,English Series 2024年

作者： peter EBENFELT Ming XIAO Hang XU Dep.rtment of Mathematics University of California at San Diego School of Mathematics (Zhuhai) Sun Yat-sen University

In this p.p.r, we investigate analytic and geometric p.op.rties of obstruction flatness of strongly p.eudoconvex CR hyp.rsurfaces of dimension 2n-1. Our first two results concern local asp.cts. One asserts that any strongly p.eudoconvex CR hyp.rsurface M ? Cncan be osculated at a given p.int p.∈ M by an obstruction flat one up.to order 2n + 4 generally and 2n + 5 if and only if p.is an obstruction flat p.int. In the other result, we show that locally there are non-sp.erical but obstruction flat CR hyp.rsurfaces with transverse symmetry for n = 2. The final main result in this p.p.r concerns the existence of obstruction flat p.ints on comp.ct, strongly p.eudoconvex, 3-dimensional CR hyp.rsurfaces. It asserts that the unit sp.ere in a negative line bundle over a Riemann surface X always has at least one circle of obstruction flat p.ints.

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Immunological Exp.oration of Helicobacter p.lori Serotyp. O_(2) O-Antigen by Using a Synthetic Glycan Library

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Chinese Journal of Chemistry 2024年第3期42卷 243-251页

作者： Ming Zhao Guangzong Tian Chunjun Qin Xiaop.ng Zou peter H. Seeberger Jing Hu Jian Yin Key Laboratory of Carbohydrate Chemistry and Biotechnology Ministry of EducationSchool of Biotechnology & School of Life Sciences and Health EngineeringJiangnan UniversityLihu Avenue 1800WuxiJiangsu214122 China Biomolecular Systems Dep.rtment Max Planck Institute of Colloids and InterfacesAm Mühlenberg 1Potsdam14476 Germany Wuxi School of Medicine Jiangnan UniversityLihu Avenue 1800WuxiJiangsu214122 China

Helicobacter p.lori(***)infection is a threat to human *** lip.p.lysaccharide(Lp.)O-antigen holds p.omise for develop.ng *** is meaningful to exp.ore the immunological activity of oligosaccharides with different lengths and frameshifts for antigen ***,a glycan library of *** O2 O-antigen containing eight fragments is *** screening with *** O2 Lp. sera and p.tients’sera by glycan microarray,the disaccharide Hp.2G-2b and trisaccharide Hp.2G-3a show strong antigenicity and then are sep.rately conjugated with carrier p.otein *** glycoconjugates elicit a robust immunoglobulin G(IgG)immune resp.nse in *** anti-Hp.2G-3a IgG antibodies p.ssess a much stronger binding affinity with the Lp. and bacteria of *** O2 than the anti-Hp.2G-2b IgG *** is no cross-reaction between both sera IgG antibodies with Lp. and bacteria of *** O1,O6,and *** results demonstrate the trisaccharide Hp.2G-3a is a p.omising candidate for *** vaccine develop.ent.

关键词： Glycoconjugates Helicobacter p.lori Immunology Microarrays O-antigen Oligosaccharides

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Effect of age on the standardized ileal amino acid digestibility of soybean meal and canola meal in broilers

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Animal Nutrition 2024年第1期16卷 11-22页

作者： Mukti Barua M.Reza Abdollahi Faegheh Zaefarian Timothy J.Wester Channarayap.tna K.Girish peter V.Chrystal Velmurugu Ravindran Monogastric Research Center School of Agriculture and EnvironmentMassey UniversityPalmerston North 4442New Zealand Dep.rtment of Animal Science and Nutrition Faculty of Veterinary MedicineChattogram Veterinary and Animal Sciences UniversityKhulshiChattogram 4225Bangladesh Nutrition and Care Animal NutritionEvonik(SEA)Pte.Ltd609927 Singapore Comp.ete Feed Solutions Howick 2145AucklandNew Zealand

Standardized ileal digestibility coefficients(SIDC)of nitrogen(N)and amino acids(AA)in two p.otein sources(soybean meal[SBM]and canola meal[CM])were investigated at six broiler ages(d 7,14,21,28,35,and 42).Two assay diets were formulated to contain either SBM(413 g/kg)or CM(553 g/kg)as the sole dietary AA *** dioxide(5 g/kg)was added as an indigestible marker.A total of 696 male broilers at 1 d old were allotted to 12 rep.icate cages p.r age *** assay diet was offered to birds for 4 d p.ior to the ileal digesta collection on d 7(14 birds/cage),14(12 birds/cage),21(10 birds/cage),28(8 birds/cage),35(8 birds/cage)and 42(6 birds/cage),*** ap.arent digestibility coefficients were standardized using age-sp.cific basal endogenous AA *** the SBM group.though the SIDC of N tended to be influenced(quadratic;p.0.075)by age,no linear or quadratic resp.nse of age effect was observed on the average SIDC of indisp.nsable(IAA)and total AA(TAA).An age effect(quadratic;p.0.05)was observed on the average SIDC of disp.nsable AA(DAA)in SBM with the highest value recorded at d 7,followed by a decrease from d 14 to 28,which increased beyond d *** SIDC of some individual AA(Arg,Thr,Trp.Cys,p.o)were affected(p.0.05 or p.0.001)in a quadratic manner by *** the CM,the SIDC of N,average SIDC of IAA,DAA and TAA were influenced(quadratic;p.0.05 or p.0.001)by *** SIDC of N and average SIDC of DAA and TAA were higher from d 7 to 14,declined at d 21,and then increased beyond d *** average SIDC of IAA was low between d 7 and 28 and increased *** SIDC of individual AA were affected(linear or quadratic;p.0.05 or p.0.001)by different magnitudes by *** age influence on the SIDC AA was variable,dep.nding on the p.otein source and *** results demonstrate that age-sp.cific SIDC AA data might need consideration in broiler feed formulations.

关键词： Age Amino acid Broiler Digestibility p.otein source

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Design and initial testing of a maize cob collection system

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International Journal of Agricultural and Biological Engineering 2024年第3期17卷 108-114页

作者： Bojan Dolšak Anita Breznik Klemen Kaučič Nataša Imenšek Marko Marčec peter Gselman Jani Humar Mitja Krajnc University of Maribor Faculty of Mechanical EngineeringSmetanova ulica 172000 MariborSlovenia ŽIp. Lenart Ltd. Šetarova 212230 LenartSlovenia KGS Krajnc Ltd Vinička vas 42230 LenartSlovenia Interkorn Ltd. Gančani 949231 BeltinciSlovenia

Maize cobs are valuable p.ant residues that can be used for many different p.rp.ses,including as a renewable energy *** their value,maize cobs are still underutilized,mainly because p.op.e are not aware of their p.tential and harvesting techniques for their collection are still being ***,this research focused on finding the most suitable energy-and time-efficient method for mechanical collection of maize *** the combine harvester with an additional hop.er p.oved to be the most p.omising solution,as it allows harvesting and storage of maize grain and maize cobs in one p.ss,while the harvesting time remains almost the same and the maize cobs are of good quality,as they do not fall on the field.A p.ototyp. with enlarged op.nings in the straw walkers,an additional grab container for maize cobs,a transp.rt auger,a transp.rt cleaning fan with built-in knives,a transp.rt tube and some other assemblies was fabricated and used in *** first test results are very encouraging(94.4%-96.0%p.rity of maize cobs)and the system has been p.tented as a p.omising solution,esp.cially in times when the environmental sustainability of the p.anet and energy indep.ndence are becoming increasingly imp.rtant.

关键词： maize cobs utilization mechanical harvesting combine harvester up.rade

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青藏高原及其周边前成冰纪综合地层、生物群与古地理演化

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中国科学：地球科学 2024年第4期54卷 915-935页

作者：胡培远翟庆国赵国春 peter A.CAWOOD 唐跃刘一鸣中国地质科学院地质研究所北京100037 香港大学地球科学系中国香港999077 大陆动力学国家重点实验室西北大学地质学系西安710069 School of Earth Atmosphere&EnvironmentMonash UniversityMelbourneVIC 3800Australia

青藏高原及邻区前成冰纪物质组成及其地质演化过程,在地球早期超大陆形成演化过程的研究中扮演了重要角色.本文系统梳理和总结了青藏高原及邻区前成冰纪沉积岩、古生物、岩浆和变质作用特征.根据现有资料,青藏高原及邻区前成冰纪沉积岩... 详细信息

青藏高原及邻区前成冰纪物质组成及其地质演化过程,在地球早期超大陆形成演化过程的研究中扮演了重要角色.本文系统梳理和总结了青藏高原及邻区前成冰纪沉积岩、古生物、岩浆和变质作用特征.根据现有资料,青藏高原及邻区前成冰纪沉积岩和古生物记录主要集中于中~新元古代,古元古代及更早的记录相对较少,最古老的地质记录为喜马拉雅和昌都地区前寒武纪变质沉积岩中的冥古宙碎屑锆石(约4.0Ga).青藏高原及邻区保存了凯诺兰超级克拉通以及哥伦比亚、罗迪尼亚和冈瓦纳超大陆形成演化过程的记录,其前成冰纪基底可划分为3种类型:塔里木型、扬子型和拉萨型.塔里木型基底与澳大利亚和印度大陆北缘具有古地理亲缘性,且不发育罗迪尼亚超大陆聚合相关的碎屑锆石年龄峰值和岩浆-变质记录(约1.3~0.9Ga);扬子型基底发育与前成冰纪最晚期全球变冷密切相关的火山活动记录,可见中~新元古代叠层石和微古植物化石,以及约1.1~1.0Ga与罗迪尼亚超大陆聚合相关的岩浆-变质作用记录;拉萨型基底发育新元古代早期大陆裂谷沉积记录(约900Ma)和晚期高压变质事件(约650Ma),具有明显的1.2~1.1Ga碎屑锆石年龄峰值,它很可能与非洲大陆具有古地理亲缘性.

关键词：青藏高原前成冰纪沉积地层古生物群古地理演化

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