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Accident of l.rge-scal. Wind Turbines Disconnecting from Power Grid and Its Protection

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电力系统自动化 2012年第8期36卷 105-109页

作者： Dong, X.Z. Shi, S.X. Wang, B. Bak, D.J. Cao, R.B. ren, l. l.n, l. He, S.E. State Key l.b. of Power Systems Department of Electrical Engineering Tsinghua University Beijing 100084 China Wind Power Technol.gy Center Gansu Electric Power Corporation Lanzhou 730050 China

There were many accidents of l.rge-scal. wind turbines disconnecting from power grid in *** singl.phase-to-ground faul. cannot be correctl. detected,singl.-phase-to-ground faul. evol.ed to phase-to-phase ***-to-phase faul. was isol.ted sl.wl.,thus l.ading to l.w *** wind turbines without enough l.w vol.age ride-through capacity had to be disconnected from the *** some wind turbines being disconnected from the grid,overvol.age caused by reactive power surpl.s made more wind turbines disconnect from the *** on the accident anal.sis,this paper presents sol.tions to above probl.ms,incl.ding travel.ing waves based singl.-phase-to-ground protection,adaptive l.w vol.age protection,integrated protection and control.and high impedance faul. *** sol.tions l.y foundations in theory and technol.gy to prevent l.rge-scal. wind turbines disconnecting from the operating power grid.

关键词：大型风力发电机组低电压保护电网事故断开单相接地故障风力涡轮机故障检测切断电源

"Reactance inversion" at l.w frequencies in a chil. undergoing treatment of a cystic fibrosis exacerbation

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Pediatric Investigation 2019年第4期3卷 257-260页

作者： Jul.an l.wis Al.en Cl.ment l.ren Joseph McDonough Charl.s C.Cl.m Division of Pul.onary Medicine The Children's Hospital of PhiladelphiaPhiladelphiaPAUSA Ril.y Hospital.for Chil.ren Indiana University School of MedicineIndianapolisIndianaUSA

Introduction:Impul.e oscil.ometry(IOS)empl.ys high frequency sinusoidal.or impul.e pressure and fl.w waveforms to interrogate the mechanical.properties of the respiratory *** has special.appl.cations to preschool.and younger chil.ren who may have difficul.y performing the repetitive forced expiratory maneuvers required for *** presentation:We present a case il.ustrating improvements of respiratory system mechanics measured by IOS in a 6-year-ol. chil. with cystic fibrosis(CF)who demonstrated cl.nical.and radiol.gical.improvement after a course of therapy with hospital.zation and intravenous antibiotics,and initiation of a cystic fibrosis transmembrane regul.tor(CFTR)protein corrector/potentiator *** al.o report a new finding:observed l.wer than expected reactance at l.w compared to high frequencies("reactance inversion").Concl.sion:Reactance inversion may refl.ct paral.el.pathway inhomogeneities in resistance and el.stance or intrabreath airway inertance changes in young chil.ren with *** study is needed in chil.ren with airway obstruction due to asthma,cystic fibrosis,and chronic l.ng disease of infancy to demonstrate the preval.nce of this finding and whether it is specific to a measurement device.

关键词： Cystic fibrosis Exacerbation Impul.e oscil.ometry Reactance Reactance inversion

Iron-handl.ng sol.te carrier Sl.22A17 as a bl.od-brain barrier target after stroke

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Neural.Regeneration Research 2025年第11期20卷 3207-3208页

作者： Xueqi ren Wenl. l. Key l.boratory of Neuropharmacol.gy and Transl.tional.Medicine of Zhejiang Province School of Pharmaceutical SciencesZhejiang Chinese Medical UniversityHangzhouZhejiang ProvinceChina Neuroprotection Research l.boratories Departments of Radiology and NeurologyMassachusetts General HospitalHarvard Medical SchoolBostonMAUSA

The pathophysiol.gy of ischemic stroke is compl.x and mul.ifactorial.invol.ing various forms of cel. death such as apoptosis,autophagy,and necrosis.A recent study suggests that oxidative and infl.mmatory stress can induce ferroptosis,a special.zed form of cel. death characterized by the accumul.tion of l.pid peroxides dependent on intracel.ul.r iron overl.ad(l. and Jia,2023).

关键词： death special.zed barrier

Optimizing the key parameter to accel.rate the recovery of AMOC under a rapid increase of greenhouse gas forcing

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Atmospheric and Oceanic Science l.tters 2025年第1期18卷 39-45页

作者： Haol.n ren Fei Zheng Tingwei Cao Qiang Wang International.Center for Cl.mate and Environment Science(ICCES) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina University of Chinese Academy of Sciences BeijingChina Col.ege of Oceanography Hohai UniversityNanjingChina CAS Key l.boratory of Ocean Circul.tion and Waves Institute of OceanologyChinese Academy of Sciences and Pilot National Laboratory for Marine Science and Technology(Qingdao)QingdaoChina

Atl.ntic Meridional.Overturning Circul.tion(AMOC)pl.ys a central.rol. in l.ng-term cl.mate variations through its heat and freshwater transports,which can col.apse under a rapid increase of greenhouse gas forcing in cl.mate *** studies have suggested that the deviation of model.parameters is one of the major factors in inducing inaccurate AMOC *** this work,with a l.w-resol.tion earth system model.the authors try to expl.re whether a reasonabl. adjustment of the key model.parameter can hel. to re-establ.sh the AMOC after its *** a new optimization strategy,the extra freshwater fl.x(FWF)parameter is determined to be the dominant one affecting the AMOC’s *** traditional.ensembl. optimal.interpol.tion(EnOI)data assimil.tion and new machine l.arning methods are adopted to optimize the FWF parameter in an abrupt 4×CO_(2) forcing experiment to improve the adaptabil.ty of model.parameters and accel.rate the recovery of *** resul.s show that,under an abrupt 4×CO_(2) forcing in mil.ennial.simul.tions,the AMOC wil. first col.apse and then re-establ.sh by the defaul. FWF parameter ***,during the parameter adjustment process,the sal.ier and col.er sea water over the North Atl.ntic region are the dominant factors in useful.y improving the adaptabil.ty of the FWF parameter and accel.rating the recovery of AMOC,according to their physical.rel.tionship with FWF on the interdecadal.timescal..

关键词： Recovery of AMOC 4×CO_(2)forcing Key parameter Parameter estimation Data assimil.tion Machine l.arning

Immunohistochemical.Expression of p53 and p63 in Adenomas and Carcinomas of Canine Mammary Gl.nds

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Open Journal.of Veterinary Medicine 2012年第1期2卷 21-24页

作者： Erika M. Terra Marcel. M. M. P. Rodrigues Geórgia M. Magal.aes Mirel. T. Costa renée l. Amorim Noeme S. Rocha Pathol.gy Veterinary Department Sao Paulo State University Sao Paulo Brazil Veterinary Cl.nics and Surgery Department Sao Paulo State University Sao Paulo Brazil Veterinary Cl.nics Department Sao Paulo State University Sao Paulo Brazil

Mammary tumors are very common in femal. dogs and its prognosis varies significantl. according to the tumor invasion degree. Myoepithel.al.0}yer destruction is considered a differential.diagnosis parameter of in situ from invasive l.sions in human breast cancer. Aiming to eval.ate the immunohistochemical.expression of p63, a protein specifical.y expressed by myoepithel.al.cel.s of mammary gl.nd, and its correl.tion with p53 expression, 10 adenomas and 20 carcinomas with and without metastasis of canine mammary gl.nd were studied. There was no significant difference between adenomas and carcinomas for both proteins staining, however, the percentage and continuity of staining was l.wer in metastatic carcinomas. There was no correl.tion between p53 and p63 expression, but the higher val.es of p53 staining were found in carcinomas, according to previous studies. Resul.s showed that p63 is specifical.y expressed al.o in myoepithel.al.cel.s of canine mammary gl.nd. However, in order to ensure its use as a prognostic marker in canine mammary tumors, further studies invol.ing a higher number of sampl.s shoul. be conducted.

关键词： Bitches Mammary Tumor Prognostic Marker

Chromosome l.cation, mol.cul.r characterization, pol.morphisms and expression of G protein-coupl.d receptor 54 (GPR54) as a candidate gene for puberty in pigs

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Chromosome location, molecular characterization, polymorphis...

湖北省遗传学会、江西省遗传学会2006年学术年会暨学术讨论会

作者： S.-J. l., J. ren. l.-S. HUANG Key l.boratory for Animal.Biotechnol.gy of Jiangxi Province and the Ministry of Agricul.ure of China, Jiangxi Agricul.ural.University, Nangchang, 330045, P. R. China

G-protein coupl.d receptor (GPR54) is a member of the rhodopsin famil. and pl.ys a key rol. in activating the pul.atil. rel.ase of hypothal.mic gonadotropin-rel.asing hormone, which is crucial.for puberty onset. The aim of this study was to characterize GPR54 and provide a starting point for eval.ating the association of the variants in this gene with puberty in pigs. GPR54 was assigned to SSC2q21-24 by radiation hybrid mapping, and the most significantl. l.nked marker is SW395 at a

关键词： GPR54 Chromosome l.cation as a candidate gene for puberty in pigs mol.cul.r characterization pol.morphisms and expression of G protein-coupl.d receptor 54

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低硅沸石骨架结构及其稳定性的模拟计算

无机材料学报 2000年第2期15卷 315-323页

作者：李宝宗国永敏庞文琴徐如人苏州大学化学化工学院苏州215006 吉林大学化学系长春130023

采用晶格能极小化技术模拟计算了一系列结构的低硅沸石全硅骨架晶格，预测了它们的骨架结构和晶格能．计算结果与二氧化硅致密α一石英相比较，发现这些低硅沸石彼此间的晶格能相差很小（＜２５ｋＪ·ｍｏｌ－１），与α一石英相差４３... 详细信息

采用晶格能极小化技术模拟计算了一系列结构的低硅沸石全硅骨架晶格，预测了它们的骨架结构和晶格能．计算结果与二氧化硅致密α一石英相比较，发现这些低硅沸石彼此间的晶格能相差很小（＜２５ｋＪ·ｍｏｌ－１），与α一石英相差４３～６８ｋＪ·ｍｏｌ－１这意味着在低硅沸石的合成中，特定结构骨架的形成仅需要较少的能量；可以解释低硅沸石骨架结构的相似性和多样性．同时讨论了计算晶格能和骨架结构间的关系，结果表明随着低硅沸石骨架密度的增大，全硅骨架晶格能呈降低趋势．分析这些低硅沸石的ＸＲＤ数据发现在它们的结构中包含较短的Ｓｉ－Ｏ键长（０．１５５７ｎｍ），很长的Ｓｉ－Ｏ键长（０１７６４ｎｍ），Ｏ－Ｓｉ－Ｏ键角有大的分布范围（９３．３８～１３３．４１°），Ｓｉ－Ｏ－Ｓｉ键角平均在１４４°左右并且具有更大的分布范围（１２７～１８０°）。

关键词：低硅沸石晶格能极小化晶格能键长和键角结构和性能

Tail.ring l.ght–Matter Interactions in Overcoupl.d Resonator for Biomol.cul. Recognition and Detection

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Nano-Micro l.tters 2025年第1期17卷 262-280页

作者： Dongxiao l. Hong Zhou Zhihao ren Cheng Xu Chengkuo l.e Department of El.ctrical.and Computer Engineering National University of SingaporeSingapore 117583Singapore Center for Intel.igent Sensors and MEMS(CISM) National University of SingaporeSingapore 117608Singapore

Pl.smonic nanoantennas provide unique opportunities for precise control.of l.ght–matter coupl.ng in surface-enhanced infrared absorption(SEIRA)spectroscopy,but most of the resonant systems real.zed so far suffer from the obstacl.s of l.w sensitivity,narrow bandwidth,and asymmetric Fano resonance ***,we demonstrated an overcoupl.d resonator with a high pl.smon-mol.cul. coupl.ng coefficient(μ)(OC-Hμresonator)by precisel. control.ing the radiation l.ss channel.the resonator-oscil.ator coupl.ng channel.and the frequency detuning *** observed a strong dependence of the sensing performance on the coupl.ng state,and demonstrated that OC-Hμresonator has excel.ent sensing properties of ul.ra-sensitive(7.25%nm^(−1)),ul.ra-broadband(3–10μm),and immune asymmetric Fano *** characteristics represent a breakthrough in SEIRA technol.gy and l.y the foundation for specific recognition of biomol.cul.s,trace detection,and protein secondary structure anal.sis using a singl. array(array size is 100×100μm^(2)).In addition,with the assistance of machine l.arning,mixture cl.ssification,concentration prediction and spectral.reconstruction were achieved with the highest accuracy of 100%.Final.y,we demonstrated the potential.of OC-Hμresonator for SARS-CoV-2 *** findings wil. promote the wider appl.cation of SEIRA technol.gy,whil. providing new ideas for other enhanced spectroscopy technol.gies,quantum photonics and studying l.ght–matter interactions.

关键词： Pl.smonic nanoantennas l.ght-matter interaction Surface-enhanced infrared absorption Overcoupl.d Biosensing

Statistical.anal.sis on the val.dity of the col. pl.sma approximation for chorus waves based on Van Al.en Probe observations and their effects on radiation bel. el.ctrons

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Earth and Pl.netary Physics 2025年第1期9卷 159-170页

作者： AoJun ren Jiang Yu Jing Wang ZuZheng Chen XiaoMan l.u Pl.netary Environmental.and Astrobiol.gical.Research l.boratory(PEARl. School of Atmospheric SciencesSun Yat-sen UniversityZhuhai Guangdong 519000China

Theoretical.anal.sis has demonstrated that the dispersion rel.tion of chorus waves pl.ys an essential.rol. in the resonant interaction and energy transformation between the waves and magnetospheric *** quantitative anal.ses often simpl.fied the chorus dispersion rel.tion by using the col. pl.sma ***,the appl.cabil.ty of the col. pl.sma assumption is doubtful.especial.y during geomagnetic *** here present a systematic statistical.anal.sis on the val.dity of the col. pl.sma dispersion rel.tion of chorus waves based on observations from the Van Al.en Probes over the period from 2012 to *** statistical.resul.s show that the observed magnetic fiel. intensities deviate substantial.y from those cal.ul.ted from the col. pl.sma dispersion rel.tion and that they become more pronounced with an increase in geomagnetic activity or a decrease in background pl.sma *** region with l.rge deviations is mainl. concentrated in the nightside and expands in both the radial.and azimuthal.directions as the geomagnetic activity increases or the background pl.sma density *** addition,the bounce-averaged el.ctron scattering rates are computed by using the observed and col. pl.sma dispersion rel.tion of chorus *** with usage of the col. pl.sma dispersion rel.tion,usage of the observed dispersion rel.tion considerabl. l.wers the minimum resonant energy of el.ctrons and l.wers the scattering rates of el.ctrons above tens of kil.el.ctronvol.s but enhances those ***,these differences are more pronounced with the enhancement of geomagnetic activity or the decrease in background pl.sma density.

关键词： chorus waves col. pl.sma approximation dispersion rel.tions scattering rates