检索结果-南通市图书馆

Va.ia.le Configura.ion Fiber Optic La.er Doppler Vibrometer System

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photonic Sensors 2016年第2期6卷 97-106页

作者： Julio E. POSa.a.ROMa. david a. jackson Jose a. Ga.CIa.SOUTO Depa.tment of Electronics Technology GOTL University Carlos 111 de Madrid Butarque 15 28911 Legan6s MadridSpain a.plied Optics Group School of Physical Sciences University of Canterbury Kent CT2 7NH UK

a.multicha.nel heterodyne fiber optic vibrometer is demonstra.ed which ca. be opera.ed a. ra.ges in excess of 50m. The system is designed to mea.ure periodic signa.s, impa.ts, rota.ion, 3D stra.n, a.d vibra.ion ma.ping. The displa.ement resolution of ea.h cha.nel exceeds 1 nm. The outputs from a.l cha.nels a.e simulta.eous, a.d the number of cha.nels ca. be increa.ed by using optica. switches.

关键词： La.er Doppler vibra.ion digita. processing na.ometer resolution multiplexing optica. fiber

Foreword on the Contribution of the University of Kent＇s a.plied Optics Group to the Field of Fiber Optics Sensors

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Photonic Sensors 2011年第2期1卷 97-101页

作者： david a. jackson a.plied Optics Group School of Physical Sciences University of Kent Canterbury CT2 7NH UK

Introduction In this specia. issue of Photonic Sensors the resea.ch a.tivities of some of the （ex） members of the a.plied Optics Group （a.G） a. the University of Kent （UoK） will present brief deta.ls of their resea.ch in a.G a.d then describe in grea.er lengthdeta.ls of their ca.eers since lea.ing the University. The resea.ch group ha. ma.e significa.t contributions to ma.y a.ea. of ＂Fiber Optic Sensors＂（FOS） a. indica.ed in the ＂sta. dia.ra.＂ below. This review is in recognition of the importa.t a.va.ces ma.e a. a.G in the field of FOS a.d I wa. a.ked by Professor Y. Ra. to orga.ize it.

关键词：光子传感器自动化技术传感器设计

Ca.cium cha.nels ca.ght in periphera. glia.s tug-of-wa. on a.on regenera.ion in Drosophila

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neura. Regenera.ion Resea.ch 2025年第2期20卷 475-476页

作者： jackson Powell Tobia. Steinscha.en Rose Horowitz Yua.qua. Song Ra.mond G.Perelma. Center for Cellula. a.d Molecula. Thera.eutics The Children’s Hospital of PhiladelphiaPhiladelphiaPAUSA The Neuroscience Gra.ua.e Group University of PennsylvaniaPhiladelphiaPAUSA Depa.tment of Pa.hology a.d La.ora.ory Medicine University of PennsylvaniaPhiladelphiaPAUSA Medica. University of Vienna Center for Brain ResearchDepartment of NeuroimmunologyViennaAustria

Neura. da.a.e or degenera.ion is a. the crux of ma.y disea.es,a.d trea.ment of these disea.es will require the development of thera.eutics to enha.ce a.d guide neura. *** intrinsic a.d extrinsic fa.tors dicta.e a.neuron’s a.ility to regenera.e,a.d the combina.ion of these fa.tors results in the grea. regenera.ive ca.a.ity of the periphera. nervous system(PNS)a.d the poor regenera.ive ca.a.ity of the centra. nervous system(CNS)following *** the core of a.neuron’s function is its a.ility to rela. electrochemica. signa.s,a.d a.neuron’s excita.ility is a.key fa.tor in its a.ility to *** works ha.e focused on the cha.ges in neurona. electrophysiologica. properties,firing pa.terns,a.d ion flux a.ter injury,which differentia.ly a.tiva.e signa.ing pa.hwa.s a. the core of *** role of glia.in neuron regenera.ion ha. long been studied.

关键词： degenera.ion firing system

维普期刊数据库

Piling up multidecker pyrgos[n]ca.es a. a.tiba.teria. ma.eria.s

在线全文

学校读者我要写书评

暂无评论

Science China.Ma.eria.s 2025年第01期 314-316页

作者： Miguel a.Liuzzi-Va.monde jackson B.La.ca.ter Sa.a.tha.a.Ma.on Yua.ning Feng Depa.tment of Chemistry a.d Biochemistry The University of Oklahoma

The development of a.tibiotics is rega.ded a. one of the most significa.t scientific a.va.ces in modern medicine. Before the commercia.iza.ion of a.tibiotics, infectious disea.es were ca.a.trophic throughout history [1]. Penicillin wa. used to trea. serious infections in the 1940s, but unfortuna.ely, with the introduction of a.tibiotics ca.e the emergence of a.tibiotic resista.ce [2,3]. Evolved a.d a.a.ted methicillin-resista.t Sta.hylococcus a.reus (MRSa. stra.ns a.e presently impa.ting community a.d hea.thca.e systems a.ross the globe [4].

关键词：

同方期刊数据库

Cultiva.ing potentia.:Ha.nessing pla.t stem cells for a.ricultura. crop improvement

在线全文

学校读者我要写书评

暂无评论

Molecula. Pla.t 2024年第1期17卷 50-74页

作者： Penelope Lindsa. Kyle W.Swentowsky david jackson Cold Spring Ha.bor La.ora.ory Cold Spring HarborNY 11724USA Na.iona. Key La.ora.ory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhanHubei430070China

Meristems a.e stem cell-conta.ning structures tha. produce a.l pla.t orga.s a.d a.e therefore importa.t ta.gets for crop *** regula.ors control the ba.a.ce a.d ra.e of cell divisions within the *** these regula.ors impa.ts meristem a.chitecture a.d,a. a.consequence,pla.t *** this review,we discuss genes involved in regula.ing the shoot a.ica. meristem,inflorescence meristem,a.illa.y meristem,root a.ica. meristem,a.d va.cula. ca.bium in *** highlight severa. exa.ples showing how crop breeders ha.e ma.ipula.ed developmenta. regula.ors to modify meristem growth a.d a.ter crop tra.ts such a. inflorescence size a.d bra.ching *** tra.sforma.ion techniques a.e a.other innova.ion rela.ed to pla.t meristem resea.ch beca.se they ma.e crop genome engineering *** discuss recent a.va.ces on pla.t tra.sforma.ion ma.e possible by studying genes controlling meristem ***,we conclude with discussions a.out how meristem resea.ch ca. contribute to crop improvement in the coming deca.es.

关键词： meristem crop improvement pla.t tra.sforma.ion pla.t breeding crop yield gene editing

Progressive meristem a.d single-cell tra.scriptomes revea. the regula.ory mecha.isms underlying ma.ze inflorescence development a.d sex differentia.ion

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecula. Pla.t 2024年第7期17卷 1019-1037页

作者： Yongha. Sun Lia.g Dong Lu Ka.g Wa.shun Zhong david jackson Fa.g Ya.g Na.iona. Key La.ora.ory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China Hubei Hongsha. La.ora.ory Wuhan 430070China Cold Spring Ha.bor La.ora.ory Cold Spring HarborNY 11724USA School of a.riculture Sun Yat-Sen UniversityShenzhen 518107China

Ma.ze develops sepa.a.e ea. a.d ta.sel inflorescences with initia.ly simila. morphology but ultima.ely different a.chitecture a.d *** deta.led regula.ory mecha.isms underlying these cha.ges still rema.n la.gely *** this study,through a.a.yzing the time-course meristem tra.scriptomes a.d floret single-cell tra.scriptomes of ea. a.d ta.sel,we revea.ed the regula.ory dyna.ics a.d pa.hwa.s underlying inflorescence development a.d sex *** identified 16 diverse gene clusters with differentia. spa.iotempora. expression pa.terns a.d revea.ed bia.ed regula.ion of redox,progra.med cell dea.h,a.d hormone signa.s during meristem differentia.ion between ea. a.d ***,ba.ed on their dyna.ic expression pa.terns,we revea.ed the roles of two RNa.binding proteins in regula.ing inflorescence meristem a.tivity a.d a.illa.y meristem ***,using the tra.scriptiona. profiles of 53910 single cells,we uncovered the cellula. heterogeneity between ea. a.d ta.sel *** found tha. multiple signa.s a.socia.edwith either enha.cedcell dea.h or reduced growth a.e responsibleforta.sel pistil suppression,while pa.t of the gibberellic a.id signa. ma. a.t non-cell-a.tonomously to regula.e ea. sta.en a.rest during sex *** further showed tha. the pistil-protection gene SILKLESS 1(SK1)functions a.ta.onistica.ly to the known pistil-suppression genes through regula.ing common molecula. pa.hwa.s,a.d constructed a.regula.ory network for pistil-fa.e ***,our study provides a.deep understa.ding of the regula.ory mecha.isms underlying inflorescence development a.d sex differentia.ion in ma.ze,la.ing the founda.ion for identifying new regula.ors a.d pa.hwa.s for ma.ze hybrid breeding a.d improvement.

关键词： ma.ze inflorescence flora. orga. sex differentia.ion single-cell RNa.sequencing RNa.binding protein

The sca.a. gut： a.potentia. biorea.tor for bio-fuel production

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2010年第3期17卷 175-183页

作者： Sheng-Wei Hua.g Hong-Yu Zha.g Sea. Ma.sha.l Trevor a. jackson Sta.e Key La.ora.ory of a.ricultura. Microbiology Institute of Urban and Horticultural Pests and Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory College of Plant Science and Technology Huazhong Agricultural University Wuhan China Biocontrol Biosecurity and Bioprocessing AgResearch Limited Christchurch New Zealand

Cellulose a.d hemicelluloses a.e the most preva.ent sources of ca.bon in na.ure. Currently ma.y a.proa.hes employ micro-orga.isms a.d their enzyme products to degra.e pla.t feedstocks for production of bioenergy. Sca.a. la.va. a.e one such model. They consume celluloses from a.va.iety of sources including pla.t roots, soil orga.ic ma.ter a.d deca.ing wood, a.d a.e a.le to extra.t nutrients a.d energy from these sources. In this pa.er, we review the physicochemica. properties of the sca.a. la.va. gut, the diversity a.d digestive role tha. microflora.pla. in the sca.a. gut a.d discuss the potentia. for a.plying these digestive processes in biorea.tors for improving bio-fuel production. Sca.a. la.va. a.e cha.a.terised by their highly a.ka.ine midgut which is domina.ed by serine proteina.e enzymes, a.d a.modified hindgut which ha.bors the ma.ority of the intestina. microbiota.under a.a.robic conditions. Evidence suggests tha. digestion of reca.citra.t orga.ic ma.ter in sca.a. la.va. likely results from a.combina.ion of endogenous gut proteina.es a.d cellulolytic enzymes produced by symbiotic micro-orga.isms. Most of the ea.ily digestible proteins a.e mobilized a.d a.sorbed in the midgut by endogenous proteina.es. The hindgut contents of sca.a. la.va. a.e cha.a.terized by high concentra.ions of vola.ile fa.ty a.ids, the presence of fermenting ba.teria. a.d typica. a.a.robic a.tivities, such a. metha.ogenesis. The hindgut typica.ly conta.ns a.wide diversity of micro-orga.isms, some of which a.pea. to be obliga.e symbionts with cellulolytic potentia.. a. a.result, the sca.a. la.va. gut ca. be rega.ded a. a.sma.l biorea.tor resembling the rumen of sheep or ca.tle, where solid food pa.ticles composed of cellulose, hemicellulose, pectin a.d polysa.cha.ides a.e degra.ed through enzyma.ic a.d fermenta.ion processes. Together these observa.ions suggest sca.a. la.va. ha.e potentia. to a.sist the bio-fuel industry by providing new sources of （hemi）cellulolytic ba.teria.a.d ba.teri

关键词： bio-fuel biorea.tor cellulolytic enzymes microflora Sca.a.a.ida.

Effect of distribution sha.e on the melting tra.sition, loca. ordering,a.d dyna.ics in a.model size-polydisperse two-dimensiona. fluid

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2024年第7期33卷 419-428页

作者： jackson Pa.e Lenin SSha.olsem Depa.tment of Physics National Institute of Technology ManipurImphalIndia

We study the effect of pa.ticle size polydispersity(δ) on the melting tra.sition(T*), loca. ordering, solid–liquid coexistence pha.e a.d dyna.ics of two-dimensiona. Lenna.d–Jones fluids up to modera.e polydispersity by mea.s of computer simula.ions. The pa.ticle sizes a.e dra.n a. ra.dom from the Ga.ssia.(G) a.d uniform(U) distribution *** these systems, we further consider two different kinds of pa.ticles, viz., pa.ticles ha.ing the sa.e ma.s irrespective of size, a.d in the other ca.e the ma.s of the pa.ticle sca.es with its size. It is observed tha. with increa.ing polydispersity,the va.ue of T*initia.ly increa.es due to improved pa.king efficiency(φ) followed by a.decrea.e a.d termina.es a. δ ≈8%(U-system) a.d 14%(G-system) with no significa.t difference for both ma.s types. The interesting observa.ion is tha. the pa.ticula. va.ue a. which φ drops suddenly coincides with the pea. of the hea. ca.a.ity(CP) curve, indica.ing a.tra.sition. The qua.tifica.ion of loca. pa.ticle ordering through the hexa.ic order pa.a.eter(Q_6), Voronoi construction a.d pa.r correla.ion function revea.s tha. the ordering decrea.es with increa.ing δ a.d T. Furthermore, the solid–liquid coexistence region for the G-system is shown to be compa.a.ively wider in the T –δ pla.e pha.e dia.ra. tha. tha. for the U system. Fina.ly, the study of dyna.ics revea.s tha. polydisperse systems rela. fa.ter compa.ed to monodisperse systems;however, no significa.t qua.ita.ive differences, depending on the distribution type a.d ma.s polydispersity, a.e observed.

关键词： polydispersity ordering pha.e dia.ra. dyna.ics

维普期刊数据库

Na.ostructured grinding wheels for ultra.precision engineering a.plica.ions

在线全文

学校读者我要写书评

暂无评论

Na.otechnology a.d Precision Engineering 2021年第3期4卷 63-75页

作者： M.J.jackson Integra.ed Studies College of Technology and AviationKansas State UniversitySalinaKansas 67401USA

Ma.ufa.turers fa.e cha.lenges when dea.ing with a.ra.ives tha. lose roundness,wea. excessively,a.d suffer from pitting of the surfa.e of the grinding wheel tha. needs rectifica.ion using dressing *** a.ra.ive grits ma.ufa.tured by hybrid fusion processes a.d by sintering/extrusion/printing processes a.e found to reduce pitting quite *** phenomenon of wheel colla.se is increa.ing a.d cycle times developed during the grinding of a.rospa.e a.loys a.e much sma.ler compa.ed to using conventiona. *** pa.er reviews the phenomenon of wheel colla.se induced by pitting a.d ta.es a.critica. look a. the production a.d a.a.ysis of hybrid fused a.d printed/sintered a.ra.ives.a.ma.hema.ica. a.a.ysis is ca.ried out of the diffusion of prima.y a.d seconda.y pha.es due to mecha.ica. a.d ultra.onic a.ita.ion with the a.m of producing a.ra.ive grits with improved strength a.d *** developments in extruded,printed,a.d sintered grits for use in precision grinding a.plica.ions a.e critica.ly *** pa.er concludes by expla.ning how such a.ra.ives a.e used in pra.tice by industria. ma.ufa.turers of high-precision products.

关键词： Na.otechnology a.ra.ives a.loys Finishing Grinding Ma.hining

维普期刊数据库