检索结果-南通市图书馆

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2006年第3期7卷 215-220页

作者： rao c.g.p. SESHAgIRI S.V. RAMESH c. IBRAHIM BASHA K. NAgARAJU H. cHANDRASHEKARAIAH Andhra pradesh State Sericulture Research and Development Institute (APSSRDI) Kirikera Hindupur-515 211 India

In the present study, polyvoltine germplasm stock ofAndhra pradesh State Sericulture Research and Development, Institute （ApSSRDI） was evaluated for its performance based on quantitative and qualitative traits. Twenty-one oval and 10 peanut cocoon shaped lines were reared in different seasons of the year. Since the polyvoltines are non-diapausing, six generations were reared and evaluated for various economically important traits based on evaluation index and sub-ordinate function statistical methods. Ten top ranked lines obtained by using both the methods were identified as potential parental strains. Among oval lines, ApMI4, ApMI 1, ApMIS, ApMW9, and ApMI9, and among peanut lines ApMD5, ApMDI, ApMD3, ApMD9 and ApMD8 were selected as base material. The identified high yielding lines will be used in various breeding programmes as initial parents for the synthesis of superior polyvoltine breeds/hybrids.

关键词： polyvoltine Silkworm germplasm performance Evaluation

Extreme Weather Disruptions and Emergency preparedness Among Older Adults in Ohio: An Eight-county Assessment

在线全文

学校读者我要写书评

暂无评论

International Journal of Disaster Risk Science 2024年第2期15卷 213-225页

作者： Smitha rao Fiona c.Doherty Anthony Traver Marisa Sheldon Emma Sakulich Holly Dabelko‑Schoeny college of Social Work The Ohio State UniversityColumbusOH 43210USA Age Friendly Innovation center College of Social WorkThe Ohio State UniversityColumbusOH 43210USA college of public Health The Ohio State UniversityColumbusOH 43210USA

The disproportionate risks and impacts of climate change and extreme weather on older adults are increasingly evident. While especially true in disaster-prone areas, human-caused climate change introduces an element of uncertainty even in previously identified “safe” regions such as the Midwestern United States. Using a cumulative disadvantage and vulnerability-informed framework and descriptive statistics from multiple data sources, this article provides an overview of climate impacts, vulnerabilities, and county-level characteristics, focusing on older adults living in central Ohio. A comparative multiple-case study methodology was used to triangulate regionally representative primary and secondary data sources to examine state and county-level measures of vulnerability, emergency preparedness, and disruptions caused by extreme weather among older adults across eight counties in central Ohio. Seventy-eight percent of older adults in the sample reported being prepared for emergencies per Federal Emergency Management Agency guidelines. Older adults in Union county reported the highest rates of preparedness, while those in Fayette county reported the lowest. county-level rates of disruption of life activities by extreme weather ranged widely. Among the most rural in the region, Fayette county emerged as uniquely disadvantaged, with the lowest median income, the most vulnerable across multiple social vulnerability dimensions, and the most reported disruptions to life activities from extreme weather. county profiles offer a snapshot of existing vulnerabilities, socioeconomic conditions, special needs, preparedness, and current disruptions among older adults in the region and can inform resource mobilization across community and policy contexts.

关键词： Disaster preparedness Extreme weather Midwestern United States Older adults Regional assessment Social vulnerability

Enhancing lithium-sulfur battery performance with In_(2)O_(3)-In_(2)S_(3)@NSc heterostructures:Synergistic effects of double barrier and catalytic transformation

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2024年第2期169卷 105-114页

作者： Deqing He chunyu Zhu Yutao Huo Zhonghao rao School of Energy and Environmental Engineering Hebei University of TechnologyTianjin 300401China Hebei Key Laboratory of Thermal Science and Energy clean Utilization Hebei University of TechnologyTianjin 300401China School of Low-carbon Energy and power Engineering China University of Mining and TechnologyXuzhou 221116China

The sluggish redox reaction kinetics of lithium polysulfides(LipSs)are considered the main obstacle to the commercial application of lithium-sulfur(Li-S)*** accelerate the conversion by catalysis and inhibit the shuttling of soluble LipSs in Li-S batteries,a solution is proposed in this *** solution involves fabrication of N,S co-doped carbon coated In_(2)O_(3)/In_(2)S_(3)heterostructure(In_(2)O_(3)-In_(2)S_(3)@NSc)as a multifunctional host material for the *** In_(2)O_(3)-In_(2)S_(3)@NSc composite can reduce the gibbs free energy for the conversion reactions of LipSs,which results in superior *** synergy between different components in In_(2)O_(3)-In_(2)S_(3)@NSc and the unique 3D structure facilitate ion and electron transport in Li-S *** In_(2)O_(3)-In_(2)S_(3)@NSc/Li 2 S 6 cathode exhibits excellent rate capacity,with a capacity of 599 mAh g−1 at 5.5 c,and good cycle stability,with a capacity of 436 mAh g^(−1)after 1000 cycles at 1 ***,this study proposes a promising solution to improve the energy storage properties of Li-S batteries,which could potentially facilitate the commercialization of Li-S batteries.

关键词： Li-S battery Multifunctional host material Synergy Heterostructures Energy storage properties

Exploring one material for dual applications:A red-emitting Mg2geO4:Eu3+ nanophosphor for future generation energy efficient WLEDs and dosimetric applications

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Rare Earths 2024年第10期42卷 1835-1845页

作者： Akshay Arjun g.p.Darshan S.c.Sharma H.Nagabhushana D.V.Sunitha H.B.premkumar Department of physics Faculty of Mathematical and Physical SciencesM.S.Ramaiah University of Applied Sciences Jain University c.N.R.rao centre for Advanced Materials Tumkur University School of Applied Sciences (physics) REVA University

The envisaged design and developme nt of individual mate rials to excavate a broader spectrum of desired properties and offer multiple applications are highly *** this in mind,a series of forsterite-structured Mg2geO4:Eu3+（1 mol%-9 mol%） nanophosphors was synthesized via a solution combustion method using oxalyl dihydrazide as a *** X-ray diffraction patterns confirm the orthorhombic crystal system with a puma space *** results clearly show irregularly shaped cluster-like structures with aggregation of the *** diffuse reflectance spectra,the optical energy band gap of the Mg2geO4:Eu3+（1 mol%-9 mol%） nanophosphors was estimated and obtained to be～4.12-4.32 *** photoluminescence emission spectra exhibit intense peaks at ～579,589,610,661,and 707 nm,which are due to characteristic5D0→7F0,5D0→7F1,5Do→7F2,5D0→7F3and5D0→7F4transitions of Eu3+ions,*** commission International de L'Eclairage color coordinates are gradually tuned from pale red（0.5980,0.4012） to a pure red（0.6385,0.3611） *** glow peaks showcase excellent super-linear response at low doses of γ-irradiations,indicating that the prepared phosphor can be used in thermoluminescent personal dosimetry which is a biological tissue *** aforementioned results demonstrate that the prepared Mg2geO4:Eu3+（1 mol%-9 mol%） nanophosphors are considered an excellent candidate for dual applications,i.e.,red component in future generation white-light-emitting diodes（WLEDs） and personal dosimetric applications.

关键词： Dosimetry Nanophosphors photoluminescence photometric properties Rare earths Thermoluminescence

cu,N codoped carbon nanosheets encapsulating ultrasmall cu nanoparticles for enhancing selective 1,2-propanediol oxidation

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy chemistry 2024年第4期91卷 27-35页

作者： Yonghai Feng Min Yu Minjia Meng Lei Liu Dewei rao Institute for Advanced Materials School of Materials Science and EngineeringJiangsu UniversityZhenjiang 212013JiangsuChina School of chemistry and chemical Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

In the selective oxidation of biomass-based 1,2-propanediol(pDO)with oxygen as the terminal oxidant,it is challenging to improve the lactic acid(LA)selectivity for nonnoble metal nanoparticles(Nps)due to their limited oxygen reduction rate and easy c-c *** the high economic feasibility of nonnoble metals,i.e.,cu,in this work,copper and nitrogen codoped porous carbon nanosheets encapsulating ultrafine cu nanoparticles(cu@cu-N-c)were developed to realize highly selective of pDO oxidation to *** carbon-encapsulated ultrasmall cu^(0)Nps in cu@cu-N-c have high pDO dehydrogenation activity while N-coordinated cu(cu-N)sites are responsible for the high oxygen reduction ***,the performance of catalytic pDO conversion to LA is optimized by a proposed pathway of pDO→hydroxylacetone→lactaldehyde→***,the enhanced LA selectivity is 88.5%,and the pDO conversion is up to 75.1%in an O_(2)-pressurized reaction system(1.0 Mpa O_(2)),superior to other cu-based catalysts,while in a milder nonpressurized system(O_(2)flow rate of 100 mL min-1),a remarkable LA selectivity(94.2%)is obtained with 39.8%pDO conversion,2.2 times higher than that of supported Au nanoparticles(1%Au/c).Moreover,carbon encapsulation offers cu@cu-N-c with strong leaching resistance for better recycling.

关键词： Selective oxidation copper and nitrogen doped carbon 1,2-propanediol Ultrasmall cu nanoparticles Lactic acid

Injury Mortality of children and Adolescents Aged 0–19 Years—china,2010–2021

在线全文

学校读者我要写书评

暂无评论

china cDc weekly 2024年第14期6卷 294-299,I0001-I0006页

作者： Jingtao Zhou Min Zhao Hao Huang David c.Schwebel peishan Ning Zhenzhen rao peixia cheng Li Li guoqing Hu Department of Epidemiology and Health Statistics Hunan Provincial Key Laboratory of Clinical EpidemiologyXiangya School of Public HealthCentral South UniversityChangsha CityHunan ProvinceChina Department of psychology University of Alabama at BirminghamBirminghamALUSA Department of child Adolescent and Women’s HealthSchool of Public HealthCapital Medical UniversityBeijingChina National clinical Research center for geriatric Disorders Xiangya HospitalCentral South UniversityChangsha CityHunan ProvinceChina

Introduction:To examine the recent trends in child injury mortality in ***:Injury mortality data of 2010–2021 for children and adolescents aged 0–19 years were from the china Health Statistics *** mortality disparities across urban *** locations,gender,and age groups were *** percent change(Apc),average annual percent change(AApc),and their 95%confidence intervals(95%cI)were estiamted usimg Joinpoint regression ***:The age-standardized injury mortality significantly dropped from 21.87 to 9.41 per 100,000 population among children and youth aged 0–19 years during 2010–2021,with an AApc of−6.7%(95%cI:−8.2%,−5.2%).The urban-rural disparity and gender gap in injury mortality reduced *** 2021,drowning and road traffic crashes were the top two causes of child injury deaths,explaing 31.1%and 27.9%of total injury deaths,*** accounted for 62.3%of injury deaths among infants younger than a ***,the suicide mortality rate rose from 2.16 to 3.42 per 100,000 population between 2010 and 2021 among teenagers aged 15–19 *** analyses yielded similar ***:During 2010–2021,the injury mortality decreased significantly among chinese children and adolescents,and the responding urbanrural disparities narrowed.

关键词： injury younger narrow

ground-layer Adaptive Optics for the 2.5 m Wide-field and High-resolution Solar Telescope

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2024年第3期24卷 224-236页

作者： Ying Yang Lan-Qiang Zhang Nan-Fei Yan Jin-Sheng Yang Zhen Li Teng-Fei Song Xue-Jun rao chang-Hui rao Key Laboratory on Adaptive Optics Chinese Academy of SciencesChengdu 610209China Institute of Optics and Electronics Chinese Academy of SciencesChengdu 610209China School of Electronic Electrical and Communication Engineering of the University of Chinese Academy of SciencesBeijing 100049China University of chinese Academy of Sciences Beijing 100049China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Key Laboratory of Modern A&A Ministry of EducationNanjing 210023China Yunnan Observatories Chinese Academy of SciencesKunming 650216.China

The 2.5 m wide-field and high-resolution solar telescope(WeHoST)is currently under developing for solar *** aims to achieve high-resolution observations over a super-wide field of view(FOV)of5′×5′,and a desired resolution of 0.3″.To meet the scientific requirements of WeHoST,the ground-layer adaptive optics(gLAO)with a specially designed wave front sensing system is as the primary *** introduce the gLAO configuration,particularly the wave front sensing *** analytic method,we simulate the performance of both classical AO and gLAO systems,optimize the wave front sensing system,and evaluate gLAO performance in terms of pSF uniformity and correction improvement across whole *** results indicate that,the classical AO will achieve diffraction-limited resolution;the suggested gLAO configuration will uniformly improve the seeing across the full 5′×5′FOV,reducing the FWHM across the axis FOV to less than0.3″(λ≥705 nm,r0≥11 cm),which is more than two times *** specially designed wave front sensor schedule offers new potential for WeHoST’s gLAO,particularly the multi-FOV gLAO and the flexibility to select the detected *** capabilities will significantly enhance the scientific output of the telescope.

关键词： instrumentation adaptive optics-instrumentation detectors-instrumentation high angular resolution-methods numerical-telescopes-Sun activity

Simulation Study on constraining gravitational Wave propagation Speed by gravitational Wave and gamma-ray Burst Joint Observation on Binary Neutron Star Mergers

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2024年第8期24卷 42-51页

作者： Jin-Hui rao Shu-Xu Yi Lian Tao Qing-Wen Tang Department of physics School of Physics and Materials ScienceNanchang UniversityNanchang 330031China Institute of High Energy physics Chinese Academy of SciencesBeijing 100049China

Theories of modified gravity suggest that the propagation speed of gravitational waves(gW)v_gmay deviate from the speed of light c.A constraint can be placed on the difference between c and v_gwith a simple method that uses the arrival time delay between gW and electromagnetic wave simultaneously emitted from a burst *** simulated the joint observation of gW and short gamma-ray burst signals from binary neutron star merger events in different observation campaigns,involving advanced LIgO(aLIgO)in design sensitivity and Einstein Telescope(ET)joint-detected with Fermi/*** a result,the relative precision of constraint on v_gcan reach~10~(-17)(aLIgO)and~10^(-18)(ET),which are one and two orders of magnitude better than that from gW170817,*** continue to obtain the bound of graviton mass m_g≤7.1(3.2)×10~(-20)eV with aLIgO(ET).Applying the Standard-Model Extension test framework,the constraint on v_gallows us to study the Lorentz violation in the nondispersive,nonbirefringent limit of the gravitational *** obtain the constraints of the dimensionless isotropic coefficients S_(00)^(4)at mass dimension d=4,which are-1×10^(-15)gO and-4×10^(-16)

关键词： gravitational waves-(stars)gamma-ray burst general-stars neutron

Strong ferroelectric and luminescence properties of 0-3 type 0.8BaTiO_(3)-0.2caTiO_(3):pr^(3+)composite ceramics prepared by cold sintering process

在线全文

学校读者我要写书评

暂无评论

Journal of Advanced ceramics 2024年第7期13卷 1002-1010页

作者： Xiaocui rao Xueling Yang Renbing Sun peng Du Hai Jiang Yao Huang Laihui Luo Department of Microelectronics Science and Engineering School of Physical Science and TechnologyNingbo UniversityNingbo 315211China college of Materials Science and Engineering Ningbo University of TechnologyNingbo 315016China

0-3 type ferroelectric-phosphor composite ceramics cannot be prepared by the traditional solid-state sintering(SSS)method due to the strong chemical reaction between ferroelectrics and phosphors during high-temperature *** cold sintering process(cSp)may solve this issue by densifying ceramics at ultralow sintering *** this work,dense 0-3 type 0.8BaTiO_(3)-0.2caTiO_(3):pr^(3+)(0.8BT-0.2cT:pr^(3+))binary composite ceramics were fabricated at an ultralow temperature of 225℃via cSp with the Ba(OH)2·8H2O hydrated *** effects of the Ba(OH)_(2)·8H2O content,sintering temperature,and sintering time on the microstructure and densification of the ceramics were *** density of the composite ceramics prepared by the optimized sintering parameters reaches 89%.Both energy-dispersive X-ray(EDX)spectroscopy and X-ray diffraction(XRD)confirm the existence of BT and cT:pr^(3+)phases in the prepared ceramics.A strong ferroelectric performance is obtained,and the luminescent properties of cT:pr^(3+)are preserved for the ***,the 0.8BT-0.2cT:pr^(3+)composite ceramics prepared by cSp have stronger photoluminescence and photo-stimulated luminescence than their counterparts prepared by cold sintering assistance(cSA)and SSS ***,cSp is a promising method for combining luminescent and ferroelectric properties into 0-3 type composite ceramics.

关键词： single-step densification cold sintering composite ceramics ferroelectric luminescence

Jurassic integrative stratigraphy,biotas,and paleogeographical evolution of the Qinghai-Tibetan plateau and its surrounding areas

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science china Earth Sciences 2024年第4期67卷 1195-1228页

作者： Jianguo LI Xin rao Lin MU Xiaohui cUI Xin LI Hui LUO peixue LIU center for Excellence in Life and paleoenvironment Nanjing Institute of Geology and PalaeontologyChinese Academy of SciencesNanjing 210008China Nanjing college University of Chinese Academy of SciencesNanjing 211135China

The Qinghai-Tibetan plateau experienced a unique geological evolution during the Jurassic,driven by the termination of the palaeotethys and the reduction of the *** Indian plate separated from the northern margin of gondwana and drifted northward from the Southern *** that the timing of strata serves as the basis for reconstructing geological history,the present work aimed to develop a new multiple stratigraphic and chronologic framework for the Jurassic strata of the Qinghai-Tibetan plateau region via a synthesis of the material on lithostratigraphy,palaeontology,iso-radiometric dating,magnetostratigraphy,and other techniques with an emphasis on recent progress and *** new framework included the Jurassic System from the four major subdivisions of the plateau:the Baryan Har,Qiangtang,Lhasa-gandise,and Southern Xizang(Himalaya).Ultimately,a more complete,refined biostratigraphic sequence was proposed,comprising the most common fossils in the plateau and those that are stratigraphically significant for the Jurassic stratigraphy,including ammonites,bivalves,brachiopods,foraminifera,radiolarians,and dinoflagellate cysts for the marine strata,and pollen and spores,and charophytes for the terrestrial *** biostratigraphic framework was correlated with the Jurassic international standard zonation of the geological Time Scale 2020 via standard or representative species or genera of *** on this framework,we constructed a lateral correlation of the Jurassic strata between different basins of the *** palaeontologic correlation in the present work shows that the Lhasa-gandise Block had a closer relationship with the Qiangtang Block than with the Southern Xizang Himalaya during the Jurassic ***,the Lhasa-gandise Block and Qiangtang Block shared similar marine fauna features of the north marginal East *** contrasts the opinion suggesting that the Yarlung Zangbo Tethys was a small back-arc basin.A c

关键词： Biostratigraphy chronostratigraphy correlation Yarlung Zangbo suture Bangong co-Nujiang suture Tethys