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Pla.ma.Science a.d Technology 2012年第12期14卷 1084-1090页

作者： S. PRa.a. Vivek singh a. K. singh Depa.tment of Physics Faculty of ScienceBanaras Hindu University

a. a.a.ytica. study is presented on the moda. dispersion cha.a.teristics, group velocity, a.d effective group, a. well a. the pha.e index of a.terna.y one dimensiona. pla.ma.photonic crysta. for a. obliquely incident electroma.netic wa.e considering the effect of collisions in pla.ma.la.ers. The dispersion rela.ion is derived by using the tra.sfer ma.rix method a.d the bounda.y conditions ba.ed on electroma.netic theory. The dispersion curves a.e plotted for both the norma. photonic ba.d ga. structure a.d the a.sorption photonic ba.d ga. structure. It is found tha. the increa.e in the a.gle of incidence shifts the photonic ba.d ga. towa.d higher frequencies. a.so, the cutoff frequency is independent of collisions.

关键词： terna.y pla.ma.photonic crysta. dispersion curves group a.d pha.e velocities,obliquely incident collision effect

Study on the Reflection Spectra.of One Dimensiona. Pla.ma.Photonic Crysta.s Ha.ing Exponentia.ly Gra.ed Ma.eria.s

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Pla.ma.Science a.d Technology 2013年第5期15卷 443-447页

作者： S. PRa.a. Vivek singh a. K. singh Depa.tment of Physics Faculty of Science Banaras Hindu University

The tra.sfer ma.rix method is used to study the effect of the permittivity profile on the reflectivity of a.one dimensiona. pla.ma.photonic crysta. ha.ing exponentia.ly gra.ed ma.eria.. The a.a.ysis shows tha. the proposed structure works a. a.perfect mirror within a.certa.n frequency ra.ge. These frequency ra.ges ca. be completely controlled by the permittivity profile of a.gra.ed dielectric la.er. a. expected we observed tha. these frequency ra.ges a.e a.so controlled by pla.ma.pa.a.eters.

关键词： gra.ed dielectric la.er pla.ma.photonic crysta. reflectivity tra.sfer ma.rixmethod

Effect of Derma. Exposure to Pa.a.henylenedia.ine a.d Linea. a.kylbenzene Sulphona.e in Guinea.Pigs

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Biomedica. a.d Environmenta. Sciences 2005年第4期18卷 238-240页

作者： a. K. Ma.HUR R. B. Ra.Za.a.M. K. SRIVa.Ta.a.a. singh Industria. Toxicology Resea.ch Centre P. B. No. 80 Mahatma Gandhi Marg Lucknow-226001 (U. P.) IndiaIndustrial Toxicology Research Centre P. B. No. 80 Mahatma Gandhi Marg Lucknow-226001 (U. P.) IndiaIndustrial Toxicology Research Centre P. B. No. 80 Mahatma Gandhi Marg Lucknow-226001 (U. P.) IndiaIndustrial Toxicology Research Centre P. B. No. 80 Mahatma Gandhi Marg Lucknow-226001 (U. P.) India

To study the effects of pa.a.henylenedia.ine （PPD） a.d linea. a.kylbenzene sulphona.e （La.） a.one a.d in combina.ion on the skin. Methods Forty-eight guinea.pigs were divided equa.ly into 4 groups a.d exposed to PPD （4 mg/kg）, La. （12 mg/kg） a.d PPD （4 mg/kg） plus La. （12 mg/kg） for 30 da.s. The biochemica. pa.a.eters such a. a.id phospha.a.e, gtuta.hione-s-tra.sfera.e, gluta.hione peroxida.e, gluta.hione, lipid peroxida.ion a.d hista.ine contents in exposed skin were estima.ed. The histopa.hologica. exa.ina.ion of the exposed skin wa. a.so ca.ried out. Results The skin enzymes, lipid peroxida.ion, a.d hista.ine increa.ed while gluta.hione decrea.ed in skin. The simulta.eously exposed group showed a.ditive toxic effects. The histopa.hologica. exa.ina.ion showed severe hyperkera.osis, thickening of colla.en fibres a.d va.uolisa.ion of epiderma. cells in PPD plus La. exposed skin. Conclusion The findings of the present study suggest tha. simulta.eous exposure to PPD a.d La. ha. a.ditive toxic effects.

关键词： Derma. Pa.a.henylenedia.ine Linea. a.kylbenzene sulphona.e Enzymes Histopa.hology

Improving Rice-Ba.ed Cropping Pa.tern Through Soil Moisture a.d Integra.ed Nutrient Ma.a.ement in Mid-Tropica. Pla.n Zone of Tripura. India

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Rice science 2014年第5期21卷 299-304页

作者： a. K. singh M. CHa.Ra.ORTI M. Da.TA Krishi Vigya. Kendra Indian Council of Agriculture Research Complex for North Eastern Hill RegionBirchandra ManuManpather South Tripura 799144 Tripura India

a. experiment wa. conducted in three fa.low pa.dy fields situa.ed on the mid-tropica. pla.n zone of a.northea.tern India. sta.e （Tripura. to provide rice fa.low ma.a.ement options using leftover soil moisture a.d nutrients. The three experimenta. fields were ma.a.ed by growing rice under the system of rice intensifica.ion a. the ra.ny sea.on crop a.d then groundnut, lentil, ra.eseed a.d pota.o a. the post-ra.ny sea.on crops. Fertiliza.ion under the integra.ed nutrient ma.a.ement system a.d lifesa.ing irriga.ion a. critica. sta.es of ea.h post-ra.ny sea.on crop were provided. Results showed tha. the field wa.er use efficiency va.ues were 5.93, 2.39, 2.37 a.d 59.76 kg/（***） a.d tha. the yield of these crops increa.ed by a.proxima.ely 20%, 34%, 40% a.d 20% a.ter a.plying two lifesa.ing irriga.ions in groundnut, lentil, ra.eseed a.d pota.o, respectively. Therefore, fa.low pa.dy field ca. provide possible profita.le crops during the post-ra.ny sea.on by utilizing the residua. moisture a.d minimum supplementa. irriga.ion under improved nutrient ma.a.ement pra.tices.

关键词： rice wa.er-use efficiency post-ra.ny sea.on crop integra.ed nutrient ma.a.ement yield net return

Insights into the interfa.e of NiCo_(2)O_(4) spinel/La.oO_(3) perovskite na.o-composite for CO a.d soot oxida.ion

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Journa. of Environmenta. Sciences 2024年第4期138卷 339-349页

作者： Neha.Ha.shita.singh Sa.ya.Vir singh Depa.tment of Chemica. Engineering Indian Institute of Technology(BHU)Varanasi221005India Depa.tment of Bota.y Institute of ScienceBanaras Hindu UniversityVaranasi221005India

In the quest for the development of therma.ly sta.le,highly a.tive a.d low-cost ca.a.ysts for use in ca.a.yzed diesel pa.ticula.e filter,na.o-composites a.e new a.ea. of ***,we reported the ea.y synthesis of spinel NiCo_(2)O_(4)/perovskite La.oO_(3) na.o-composite,a.d its individua. oxides NiCo_(2)O_(4)a.d La.oO_(3) for *** deta.led insights into the physio-chemica. cha.a.teristics of formed NiCo_(2)O_(4)/La.oO_(3) na.o-composite were done ba.ed on va.ious cha.a.teriza.ion a.a.ysis such a. X-ra. diffra.tion(XRD),Fourier tra.sform infra.ed(FT-IR),N_(2) physiosorption,sca.ning electron microscopy-energy dispersive spectroscopy(SEM-EDX),tra.smission electron microscopy(TEM),a.d X-ra. photoelectron spectroscopy(XPS).The cha.a.teriza.ion a.a.ysis of NiCo_(2)O_(4)/La.oO_(3) revea.ed the successful forma.ion of a.chemica. interfa.e possessing strong interfa.ia. intera.tion,resulting in desira.le physicochemica. cha.a.teristics such a. sma.l crysta.lite size,a.unda.t mesoporosity,high specific surfa.e a.ea.a.d a.tiva.ion of surfa.e la.tice *** to the desira.le cha.a.teristics,the a.tivity results over NiCo_(2)O_(4)/La.oO_(3) na.o-composite showed the excellent CO oxida.ion performa.ce a.d high soot oxida.ion a.tivity,recycla.ility a.d therma. *** work ma.nly a.tempts to empha.ize the effectiveness of the fa.ile,inexpensive a.d conventiona.ly used precipita.ion method for the successful forma.ion of highly efficient na.o-composites.

关键词： La.oO_(3) NiCo_(2)O_(4) Spinel/perovskite CO oxida.ion Soot oxida.ion Chemica. interfa.e

Snow a.d regolith a.bedo va.ia.ions using CRISM da.a.a. McMurdo cra.er,Ma.s

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Ea.th a.d Pla.eta.y Physics 2024年第2期8卷 338-355页

作者： Seha.pa. singh Deepa. singh Centre of Studies in Resources Engineering Indian Institute of Technology BombayMumbaiIndia

The cryosphere component provides the most relia.le a.d insightful indica.ions of a.y pla.et’s clima.e *** da.a.from the Compa.t Reconna.ssa.ce Ima.ing Spectrometer for Ma.s(CRISM),we develop a.novel a.proa.h to determining the broa.ba.d Visible a.d Nea. Infra.ed(VNIR)a.bedo of the Ma.tia. *** study focuses on a.bedo cha.ges in the McMurdo cra.er,pa.t of Ma.s’s south pola. la.er *** compa.e sea.ona. a.d intera.nua. va.ia.ions of the McMurdo surfa.e a.bedo before,during,a.d a.ter the Globa. Dust Storm(GDS)of Ma.tia. Yea.(MY)*** the sea.ons progressed from spring to summer,the mea. a.bedo in MY 32 a.d 34 plunged by over 40%,by a.out 35%in MY 33,a.d by slightly more tha. 30%in MY *** intera.nua.ly,however,mea. a.bedo va.ues within both sea.ons(spring a.d summer)exhibited no significa.t differences in those sa.e ***,intera.nua. a.bedo difference ma.s revea. a.bedo va.ia.ion of more tha.±0.3 in certa.n regions of the *** only snow-covered pixels,intera.nua. a.bedo differences suggest tha. Ma.s dust ha. a.perva.ive impa.t on Ma.s’s *** in ma.imum a.d minimum a.bedo va.ues a. high a. 0.5 were observed,depending upon differences in the dust levels in Ma.tia. snow/*** ma.imum a.d the minimum snow a.bedo va.ues were lowest in MY 34,indica.ing the effect of the intense dust storm event tha. *** a.era.e snow a.bedo decrea.ed from 0.45 in MY 32 to 0.40 in MY 33 a.d to 0.33 in MY 34,a.d then rose ba.k to 0.40 in MY *** tra.ectory suggests a.tempora.y deposition of dust,pa.tia.ly reversed a.ter the GDS by self-clea.ing mecha.isms(loca. a.olia. process a.d CO_(2)sublima.ion/deposition cycle).

关键词： Ma.s Ma.tia. ice a.bedo dust storm Ma.s surfa.e Ma.tia. clima.e

Geo-Hydrodyna.ics of Ba.ja.a.a.ea.a.d its Significa.ce with Respect to Sea.ona. Fluctua.ion of Groundwa.er

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Journa. of Wa.er Resource a.d Protection 2010年第7期2卷 683-689页

作者： Bija. singh a. S. singh 不详

Ba.ja.a.a.ea.is a.pa.t of singhbhum Shea. Zone (SSZ) fa.ling within Survey of India.Toposheets No. 73J/6, J/7, J/10 a.d J/11. The Suba.na.ekha.River, Sa.kh Na.a.a.d Goha.a.fa.lts a.e ma.or disconti-nuities in the a.ea. a. a.tempt ha. been ma.e to simula.e the regiona. groundwa.er hydrodyna.ics. Few dug-wells were monitored for more tha. a.yea. to find out the sea.ona. fluctua.ion cha.ges in the dra.na.e pa.tern a.d groundwa.er level. Groundwa.er sa.ples were a.a.yzed for physica. a.d chemica. a.a.ysis. Results show tha. one of the ma.or discontinuities in the a.ea.the Goha.a.Fa.lt controls la.gely the geohydrodyna.ics of the a.ea. Discha.ge of groundwa.er is of effluence type during a.l the three sea.ons. The wa.er is sa.e for drinking a. most of the conta.ina.ions a.e much below the permissible limits. No such previous work ha. been a.tempted in this a.ea.to investiga.e the groundwa.er dyna.ics a.d hence the selection of few pa.a.eters were a.sumed a.d ta.en from simila. surrounding a.uifer systems for modeling. The groundwa.er flow wa. a.so a.sumed to be in stea.y sta.e. The present pa.er dea.s with some importa.t a.pects rela.ed to the hydrologica. significa.ce of the Ba.ja.a.Ura.ium mining a.ea.a.d its rela.ionship with the loca. clima.e, physiogra.hy a.d meteorology. a. a.tempt is a.so ma.e to simula.e the sta.us of groundwa.er conditions of ha.d rock a.uifers in the region. Further it envisa.es the necessity of such study being underta.en in the entire SSZ belt to secure precise informa.ion a.out the surfa.e ma.ifesta.ions which govern the groundwa.er recha.ge potentia.ity a. well a. its qua.ity.

关键词： Geo-hydrodyna.ics Ba.ja.a Groundwa.er singhbhum Shea. Zone (SSZ) Goha.a Fa.lt Effluence Ura.ium-Copper Minera.iza.ion

Estima.ion of a. a.d Cu Conta.ina.ion in a.ricultura. Soils a.ound a.Mining a.ea.by Reflecta.ce Spectroscopy:a.Ca.e Study

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Pedosphere 2009年第6期19卷 719-726页

作者： REN Hong-Ya. ZHUa.G Da.Fa.g a. N. singh Pa. Jia.-Jun QIU Dong-Sheng SHI Run-He College of Resource a.d Environmenta. Sciences Nanjing Agricultural University Nanjing 210095 (China) Resource a.d Environmenta. Science Da.a.Center Chinese Academy of Sciences Beijing 100101 (China) Key La.ora.ory of Resources Remote Sensing & Digita. a.riculture Ministry of Agriculture Beijing 100081 Depa.tment of Bota.y Pa.ja. University Chandigarh-160014 (India) Key La.ora.ory of Geogra.hic Informa.ion Science for Ministry of Educa.ion East China Normal University Shanghai 200062 (China)

Concentra.ions of Iron (Fe), a., a.d Cu in soil sa.ples from the fields nea. the Ba.sha. Mine in Huna. Province, China. were a.a.yzed a.d soil spectra. reflecta.ce wa. mea.ured with a. a.D FieldSpec FR spectrora.iometer (a.a.ytica. Spectra. Devices, Inc., USa. under la.ora.ory condition. Pa.tia. lea.t squa.e regression (PLSR) models were constructed for predicting soil meta. concentra.ions. The da.a.pre-processing methods, first a.d second deriva.ives (FD a.d SD), ba.eline correction (BC), sta.da.d norma. va.ia.e (SNV), multiplica.ive sca.ter correction (MSC), a.d continuum remova. (CR), were used for the spectra. reflecta.ce da.a.pretrea.ments. Then, the prediction results were eva.ua.ed by rela.ive root mea. squa.e error (RRMSE) a.d coefficients of determina.ion (R 2 ). a.cording to the criteria.of minima. RRMSE a.d ma.ima. R 2 , the PLSR models with the FD pretrea.ment (RRMSE = 0.24, R 2 = 0.61), SNV pretrea.ment (RRMSE = 0.08, R 2 = 0.78), a.d BC-pretrea.ment (RRMSE = 0.20, R 2 = 0.41) were considered a. the fina. models for predicting a., Fe, a.d Cu, respectively. Wa.eba.ds a. a.ound 460, 1 400, 1 900, a.d 2 200 nm were selected a. importa.t spectra. va.ia.les to construct fina. models. In conclusion, concentra.ions of hea.y meta.s in conta.ina.ed soils could be indirectly a.sessed by soil spectra.a.cording to the correla.ion between the spectra.ly fea.ureless components a.d Fe; therefore, spectra. reflecta.ce would be a. a.terna.ive tool for monitoring soil hea.y meta.s conta.ina.ion.

关键词： da.a.pre-processing hea.y meta. regression models soil iron spectra. reflecta.ce

The Dispersion Cha.a.teristics of a.One Dimensiona. Pla.ma.Photonic Crysta. Ha.ing Inhomogeneous Pla.ma.Density Profiles

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Optics a.d Photonics Journa. 2012年第3期2卷 222-229页

作者： Surendra.Pra.a. Vivek singh a. K. singh Depa.tment of Physics Banaras Hindu University Varanasi India

The dispersion cha.a.teristics of bina.y 1D-PPCs ha.ing inhomogeneous pla.ma.in the unit cell a.e studied. Using the tra.sfer ma.rix method the required dispersion rela.ions a.e obta.ned. Here the linea. a.d exponentia. pla.ma.density profiles a.e considered a.d compa.ed with the homogeneous pla.ma.ha.ing uniform density profile. It is observed tha. the inhomogeneity in pla.ma.la.er highly a.fect dispersion curves. By compa.ing the dispersion curves obta.ned in a.l considered ca.es, it is found tha. the widths of ba.d ga.s a.d pha.e velocities a.e a.wa.s la.ger for exponentia. density profile tha. the linea. uniform density profiles in the considered frequency ra.ge.

关键词： Pla.ma Photonic Crysta. Inhomogeneous Pla.ma Density Dispersion Cha.a.teristics Linea. Pla.ma Density Profile Exponentia.ly Pla.ma Density Profile

Tra.sfer Lea.ning-Ba.ed Cla.s Imba.a.ce-a.a.e Shoulder Impla.t Cla.sifica.ion from X-Ra. Ima.es

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Journa. of Bionic Engineering 2024年第2期21卷 892-912页

作者： Ma.ut Jinda. Birmoha. singh Depa.tment of Computer Science a.d Engineering Sant Longowal Institute of Engineering and TechnologySangrur148106PunjabIndia

Tota. shoulder a.thropla.ty is a.sta.da.d restora.ive procedure pra.ticed by orthopedists to dia.nose shoulder a.thritis in which a.prosthesis repla.es the whole joint or a.pa.t of the *** is often cha.lenging for doctors to identify the exa.t model a.d ma.ufa.turer of the prosthesis when it is *** pa.er proposes a.tra.sfer lea.ning-ba.ed cla.s imba.a.ce-a.a.e prosthesis detection method to detect the impla.t’s ma.ufa.turer a.toma.ica.ly from shoulder X-ra. *** fra.ework of the method proposes a.novel tra.ning a.proa.h a.d a.new set of ba.ch-norma.iza.ion,dropout,a.d fully convolutiona. la.ers in the hea. *** employs cyclica. lea.ning ra.es a.d weighting-ba.ed loss ca.cula.ion *** modifica.ions a.d in fa.ter convergence,a.oid loca.-minima.sta.na.ion,a.d remove the tra.ning bia. ca.sed by imba.a.ced *** proposed method is eva.ua.ed using seven well-known pre-tra.ned models of VGGNet,ResNet,a.d DenseNet *** is performed on a.shoulder impla.t benchma.k da.a.et consisting of 597 shoulder X-ra. *** proposed method improves the cla.sifica.ion performa.ce of a.l pre-tra.ned models by 10–12%.The DenseNet-201-ba.ed va.ia.t ha. a.hieved the highest cla.sifica.ion a.cura.y of 89.5%,which is 10%higher tha. existing ***,to va.ida.e a.d genera.ize the proposed method,the existing ba.eline da.a.et is supplemented to six cla.ses,including sa.ples of two more impla.t *** results ha.e shown a.era.e a.cura.y of 86.7%for the extended da.a.et a.d show the preeminence of the proposed method.

关键词： Biomedica. engineering a.tificia. intelligence Tota. shoulder a.thropla.ty Prosthesis identifica.ion Biomedica. ima.e cla.sifica.ion