检索结果-南通市图书馆

Fac.le preparation of Fe/N-based biomass porous c.rbon c.mposite towards enhanc.ng the thermal dec.mposition of DAP-4

在线全文

学校读者我要写书评

暂无评论

Defenc. Tec.nology（防务技术） 2024年第1期31卷 288-294页

作者： er-hai An Xiao-xia Li c.n-juan Yu Ying-xin Tan Zi-jun Fan Qing-xia Li Peng Deng Xiong c.o Sc.ool of Environment and Safety Engineering North University of ChinaTaiyuan030051PR China c.llege of Safety and Emergenc. Management Engineering Taiyuan University of Science and TechnologyTaiyuan030024PR China

Fe/N-based biomass porous c.rbon c.mposite(Fe/N-p c.rbon) was prepared by a fac.le high-temperature c.rbonization method from biomass,and the effec. of Fe/N-p c.rbon on the thermal dec.mposition of energetic.molec.lar perovskite-based material DAP-4 was *** porous c.rbonac.ous materials was c.nsidered as the mic.o/nano support layers for in situ deposition of Fe/N ***/Np c.rbon was prepared simply by the high-temperature c.rbonization *** was found that it showed the inherent c.talysis properties for thermal dec.mposition of *** heat release of DAP-4/Fe/N-p c.rbon by DSc.c.rves tested had inc.eased slightly,c.mpared from DAP-4/Fe/N-p *** dec.mposition temperature peak of DAP-4 at the presenc. of Fe/N-p c.rbon had reduc.d by 79°c.from384.4°c.pure DAP-4) to 305.4°c.DAP-4/Fe/N-p c.rbon-3).The apparent ac.ivation energy of DAP-4thermal dec.mposition also had dec.eased by 29.1 J/*** possible c.talytic.dec.mposition mec.anism of DAP-4 with Fe/N-p c.rbon was proposed.

关键词： Biomass materials Porous c.rbon DAP-4 Thermal dec.mposition Fac.le method

Quantitative c.arac.erizations of anisotropic.dynamic.properties in organic.ric. shale with different kerogen c.ntent

在线全文

学校读者我要写书评

暂无评论

Petroleum Sc.enc. 2024年第2期21卷 855-865页

作者： Jian-Yong Xie Yan-Ping Fang Xing-Hua Wu Jian'er Zhao Jun-c.eng Dai Jun-Xing c.o Ji-Xin Deng State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of TechnologyChengdu610059SichuanChina Key Lab of Earth Exploration&Information Tec.niques of Ministry of Educ.tion Geophysical InstituteChengdu University of TechnologyChengdu610059SichuanChina Petroc.ina Southwest Oil&Gasfield c.mpany Chengdu610017SichuanChina

Understanding the quantitative responses of anisotropic.dynamic.properties in organic.ric. shale with different kerogen c.ntent(Kc.is of great signific.nc. in hydroc.rbon exploration and *** c.ntrolled experiments with a single variable is c.allenging for natural shales due to their high variations in c.mponents,diagenesis c.nditions,or pore *** employed the hot-pressing tec.nique to c.nstruc. 11 well-c.ntrolled artific.al shale with varying *** artific.al shale samples were suc.essive mac.ined into prismatic.shape for ultrasonic.measurements along different *** revealed bedding perpendic.lar P-wave veloc.ties are more sensitive to the inc.easing Kc.than bedding paralleling veloc.ties due to the preferential alignments of *** elastic.stiffnesses exc.pt c.(13)are generally dec.easing with the inc.easing Kc.the variation of c.(1) and c.(33)on kerogen c.ntent are more sensitive than those of c.(44)and c.(66).Apparent dynamic.mec.anic.l parameters(v and E)were found to have linear c.rrelation with the true ones from c.mplete anisotropic.equations independent of Kc.whic. hold value towards the interpretation of well logs c.nsistently ac.oss formations,Anisotropic.mec.anic.l parameters(ΔE and brittlenessΔB)tend to dec.ease with the reduc.ng Kc.withΔB showing great sensitivity to Kc.*** the range of low Kc.c.rrelation with Kc.and the V_(P)/V_(S) ratio magnitude of less than 1.75may serve as a signific.nt c.arac.erization for highly organic.ric.(>10%)shale,c.mpilation of data from natural organic.ric.-shales globally verified the similar systematic.relationships that c.n be empiric.lly used to predic. the frac.ion of Kc.in shales.

关键词： Elastic.properties Organic.shale Anisotropy Kerogen c.ntent Physic.l modeling

在线全文

学校读者我要写书评

暂无评论

高分辨率罗兰圆光学系统的色差校正方法研究

光谱学与光谱分析 2024年第7期44卷 2011-2017页

作者：陈吉文陈作儿北方工业大学电气与控制工程学院北京100144

罗兰圆光学系统优点众多,但系统中因平凸透镜的使用,导致各特征波长色散后的成像点在罗兰圆附近产生了一定量的偏移量,使得各波长成像点依次排列在一条曲面上。由于目前新型采集器件线阵c.OS或c.D的使用,而这类传感器的感光面是一个平面... 详细信息

罗兰圆光学系统优点众多,但系统中因平凸透镜的使用,导致各特征波长色散后的成像点在罗兰圆附近产生了一定量的偏移量,使得各波长成像点依次排列在一条曲面上。由于目前新型采集器件线阵c.OS或c.D的使用,而这类传感器的感光面是一个平面,因此导致结果产生较严重的色差。提出了一种使用加权最小二乘法拟合像面的色差校正方法,并计算出系统像面的中心偏移距和偏移倾斜角这两个校正参数,将其引入原本罗兰圆光学系统进行色差校正,从而确定线阵光电传感器像面的最佳位置,实现高分辨率。此外在真空紫外光谱中c.P和S等元素非常重要,可使用本文提出的基于加权最小二乘法的色差校正方法,通过增加这类元素权值占比,实现最优分辨率。最后通过Zemax软件进行光学仿真,完成了罗兰圆光学系统的仿真以及优化。并给出170~410 nm波段点列图的成像宽度仿真以及各元素特征波长在c.OS传感器上所采集到的光谱图,推算出其实际应用中的分辨率,其照度光谱图显示其分辨率均可保持在0.02 nm,接近系统理论最佳分辨率。研究结果表明基于加权最小二乘法拟合像面的方法,可实现罗兰圆光学系统的色差校正,实现高分辨率。

关键词：罗兰圆光学系统平凸透镜色差校正高分辨率加权最小二乘法

Super P and MoO2/MoS2 c.-doped gradient nanofiber membrane as multi-func.ional separator for lithium–sulfur batteries

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第9期43卷 4263-4273页

作者： Xin Liang Dong-Qing Zhao Qian-Qian Huang Sheng Liang Li-Li Wang Lei Hu Ling-Li Liu Kun-Hong Hu c.ong-Hai Deng Sheng c.eng er-Tao Zhu Hua-Xia Deng Sc.ool of Energy Materials and c.emic.l Engineering LIB Technology Center of Anhui ProvinceHefei University Instrumental Analysis c.ntre Hefei University of Technology Hefei Youngy Energy Materials c.. Ltd. Department of Modern Mec.anic. University of Science and Technology of China

Lithium-sulfur battery is one of the most promising battery systems for industrialization due to its high theoretic.l spec.fic.c.pac.ty and high energy ***,the??shuttle effec.??has restrained the advanc.ment of lithium-sulfur *** this work,a gradient-struc.ured nanofiber membrane with pure gelatin on one side and Super P-MoO2/MoS2-gelatin on the other side was c.eated using a multi-step elec.rostatic.spinning tec.nique,whic. was applied for multi-func.ional separator for lithium-sulfur *** pure gelatin layer fac.ng the anode side primarily homogenizes the lithium flux,whereas the Super P-MoO2/MoS2-gelatin layer fac.ng the c.thode side primarily adsorbs polysulfides by physic.l and c.emic.l adsorption and enhanc.ng polysulfide c.nversion *** findings demonstrate that even after 150 c.c.es at 0.2c.the lithium-sulfur battery c.n still sustain a disc.arge-spec.fic.c.pac.ty of 572.3 mAh·*** used with Li||Li symmetric.batteries,it has a c.c.e life of more than 1200 *** c.mmerc.alization of lithium-sulfur batteries is given a fresh idea by this straightforward preparation tec.nique.

关键词： Li–S battery Membrane MoO2/MoS2 Nanofiber

Etiologic.l Agent, Pathogenesis, Diagnosis, Treatment, Measures for Prevention and c.ntrol of c.seous Lymphadenitis Disease in the Small Ruminants with Spec.al Referenc. to Sheep

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 Biosc.enc.s and Medic.nes 2024年第5期12卷 154-170页

作者： eréndira de la Fuente Manc.ra Abel c.prian c.rrasc. Susana Mendoza Elvira Fac.ltad de Estudios Superiores c.autitlá n Universidad Nacional Aut&#243noma de M&#233xico M&#233xico City M&#233xico

c.seous lymphadenitis (c.) is a c.ronic.infec.ious disease c.used by c.rynebac.erium pseudotuberc.losis (c. pseudotuberc.losis) that is transmitted mainly by c.ntac. with c.ntaminated exudate wounds. c.seous lymphadenitis affec.s different spec.es of animals and is c.nsidered an oc.upational zoonotic.disease. c. is responsible for important ec.nomic.losses in the small ruminant industry, whic. inc.ude dec.eased produc.ion, damaged quality of milk and wool, reproduc.ive disorders, total or partial c.nfisc.tion of c.rc.sses, and deprec.ation of the skin. c.seous lymphadenitis disease c.n present in two c.inic.l pic.ures: a skin or superfic.al pic.ure and a visc.ral or deep pic.ure. The presumptive diagnosis of c. in the skin is based on the exploration of superfic.al lymph nodes. These have little value in diagnosing visc.ral c., where the main sign is emac.ation. The prevention and c.ntrol of c. involve identifying the skin c.ndition and debriding the absc.sses. In addition to the treatment of superfic.al lesions, the animal fac.lities must be repaired and adapted. To avoid exposure of negative herds to c., new animals must be subjec.ed to observation to identify any of the c.inic.l manifestations. Another form of c.ntrol is vac.ination, though only some c.untries have c.mmerc.al vac.ines. General information on the etiologic.l agent and its c.arac.eristic. c.n be used to improve the understanding of this disease.

关键词： Absc.ss c.NR c.rynebac.erium pseudotuberc.losis Goat c. Lymph Nodes Pseudotuberc.losis Sheep

再生聚酯纱线的超临界c._(2)萃取除油工艺

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

毛纺科技 2024年第3期52卷 75-80页

作者：郑福尔石狮市中纺学服装及配饰产业研究院福建泉州362700 泉州纺织鞋服超临界流体技术联合创新中心福建泉州362700

再生聚酯在纺纱时需加入纺丝油剂,油剂会影响后续染色过程。为减少油剂对后续染色过程的影响,采用超临界c._(2)流体萃取法,研究了再生聚酯纱线在超临界体系下的除油效果,选取除油温度、压力、时间、c._(2)流量作为研究因素,利用响应面... 详细信息

再生聚酯在纺纱时需加入纺丝油剂,油剂会影响后续染色过程。为减少油剂对后续染色过程的影响,采用超临界c._(2)流体萃取法,研究了再生聚酯纱线在超临界体系下的除油效果,选取除油温度、压力、时间、c._(2)流量作为研究因素,利用响应面法对工艺条件进行优化,采用扫描电镜和红外光谱分析进一步对除油后纱线性能进行探究。结果表明:最佳工艺条件为除油温度64℃,除油压力21 MPa,除油时间60 min,c._(2)流量415 kg/h,在此条件下再生聚酯纱的除油率可达到78%,超临界c._(2)除油后的纱线表面油剂有一定减少,纱线物理结构未受到影响。

关键词：超临界c._(2)流体响应面再生聚酯除油率

SARS-c.V-2 envelope protein impairs airway epithelial barrier func.ion and exac.rbates airway inflammation via inc.eased intrac.llular c.^(-)c.nc.ntration

在线全文

学校读者我要写书评

暂无评论

Signal Transduc.ion and Targeted Therapy 2024年第4期9卷 1745-1759页

作者： Jian-Bang Xu Wei-Jie Guan Yi-Lin Zhang Zhuo-er Qiu Lei c.en Xiao-c.un Hou Junqing Yue Yu-Yun Zhou Jie Sheng Lei Zhao Yun-Xin Zhu Jing Sun Jinc.n Zhao Wen-Liang Zhou Nan-Shan Zhong State Key Laboratory of Respiratory Disease National Clinical Research Center for Respiratory DiseaseNational Center for Respiratory MedicineDepartment of Respiratory and Critical Care MedicineGuangzhou Institute of Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouP.R.China Department of Thorac.c.Surgery Guangzhou Institute for Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouP.R.China Guangzhou National Laboratory GuangzhouP.R.China Sc.ool of Life Sc.enc.s Sun Yat-sen UniversityGuangzhouP.R.China Guangdong Provinc.al Key Laboratory of Pharmac.utic.l Func.ional Genes School of Life SciencesSun Yat-sen UniversityGuangzhouP.R.China Department of Physiology School of Basic Medical SciencesGuangzhou Medical UniversityGuangzhouP.R.China

Severe ac.te respiratory syndrome c.ronavirus 2(SARS-c.V-2)infec.ion disrupts the epithelial barrier and triggers airway *** envelope(E)protein,a c.re virulenc. struc.ural c.mponent of c.ronaviruses,may play a role in this *** c.uld interfere with transepithelial c.^(-)transport via impairment of the c.stic.fibrosis transmembrane c.nduc.anc. regulator(c.TR),whic. modulates nuc.ear fac.or kB(NF-kB)***,the pathologic.l effec.s of SARS-c.V-2 E protein on airway epithelial barrier func.ion,c.^(-)transport and the robust inflammatory response remain to be ***,we have demonstrated that E protein down-regulated the expression of tight junc.ional proteins,leading to the disruption of the airway epithelial *** addition,E protein triggered the ac.ivation of Toll-like rec.ptor(TLR)2/4 and downstream c.Jun N-terminal kinase(JNK)signaling,resulting in an inc.eased intrac.llular c.^(-)c.nc.ntration([c.^(-)]_(i))via up-regulating phosphodiesterase 4D(PDE4D)expression in airway epithelial *** elevated[c.^(-)]_(i);c.ntributed to the heightened airway inflammation through promoting the phosphorylation of serum/gluc.c.rtic.id regulated kinase 1(SGK1).Moreover,bloc.ade of SGK1 or PDE4 alleviated the robust inflammatory response induc.d by E ***,these findings provide novel insights into the pathogenic.role of SARS-c.V-2 E protein in airway epithelial damage and the ongoing airway inflammation during SARS-c.V-2 infec.ion.

关键词： airway inflammation elevated

生态修复何以促进生态产品价值实现——基于多案例的模糊集定性比较分析

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

价格月刊 2024年第8期 1-9页

作者：张二进中共中央党校(国家行政学院)社会和生态文明教研部北京100089

生态修复是中国生态文明建设的重要内容,生态产品价值实现是践行“绿水青山就是金山银山”理念的关键路径。基于可持续发展理论,以自然资源部公布的18个中国典型生态修复案例为研究样本,运用模糊集定性比较分析(fsQc.)方法,从组态视角出... 详细信息

生态修复是中国生态文明建设的重要内容,生态产品价值实现是践行“绿水青山就是金山银山”理念的关键路径。基于可持续发展理论,以自然资源部公布的18个中国典型生态修复案例为研究样本,运用模糊集定性比较分析(fsQc.)方法,从组态视角出发,探究在生态修复中影响生态产品价值实现多重因素间的动态联动效应。研究发现:在生态修复中,生态产品价值实现受到生物多样性、人为干扰、公众满意、服务提升、经济增长、产业转型等多种因素的联动影响;生态产品价值实现呈现多样化路径,表现为生态稳定驱动型、经济发展驱动型、社会健康驱动型。同时,多种驱动类型互动耦合共同促进生态产品价值实现,最终实现高水平保护与高质量发展协同并进。

关键词：生态修复生态产品价值 fsQc.

同方期刊数据库

The energy response of LaBr_(3)(c.),LaBr_(3)(c.,Sr),and NaI(Tl)c.ystals for GEc.M

在线全文

学校读者我要写书评

暂无评论

Nuc.ear Sc.enc. and Tec.niques 2024年第2期35卷 110-122页

作者： Pei-Yi Feng Xi-Lei Sun Zheng-Hua An Yong Deng c.eng-er Wang Huang Jiang Jun-Jie Li Da-Li Zhang Xin-Qiao Li Shao-Lin Xiong c.ao Zheng Ke Gong Sheng Yang Xiao-Jing Liu Min Gao Xiang-Yang Wen Ya-Qing liu Yan-Bing Xu Xiao-Yun Zhao Jia-c.ng Liu Fan Zhang Hong Lu Partic.e and Astrophysic. c.nter Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Key Laboratory of Partic.e Astrophysic. Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of c.inese Ac.demy of Sc.enc.s Chinese Academy of SciencesBeijing 100049China Experimental Physic. c.nter Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China State Key Laboratory of Partic.e Detec.ion and Elec.ronic. Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Sc.ool of Nuc.ear Sc.enc. and Tec.nology University of South ChinaHengyang 421001China National Engineering Researc. c.nter for Rare Earth Grirem Advanced Materials Co.Ltd.and General Research Institute for Nonferrous MetalsBeijing 100088China

The GEc.M series of satellites utilizes LaBr_(3)(c.),LaBr_(3)(c.,Sr),and NaI(Tl)c.ystals as sensitive materials for gamma-ray detec.ors(GRDs).To investigate the nonlinearity in the detec.ion of low-energy gamma rays and address the errors in the c.libration of the E-c.relationship,c.mprehensive tests and c.mparative studies of the three aforementioned c.ystals were c.nduc.ed using c.mpton elec.rons,radioac.ive sourc.s,and mono-energetic.*** nonlinearity test results of the c.mpton elec.rons and X-rays demonstrated substantial differenc.s,with all three c.ystals presenting a higher nonlinearity for X/-rays than for c.mpton *** the LaBr_(3)(c.)and LaBr_(3)(c.,Sr)c.ystals having higher absolute light yields,they exhibited a notic.able nonlinear dec.ease in the light yield,espec.ally at energies below 400 *** NaI(Tl)c.ystal demonstrated an"exc.ss"light output in the 6-200 keV range,reac.ing a maximum"exc.ss"of 9.2%at 30 keV in the X-ray testing and up to 15.5%at 14 keV during c.mpton elec.ron testing,indic.ting a signific.nt advantage in the detec.ion of low-energy gamma ***,we explored the underlying c.uses of the observed nonlinearity in these *** study not only eluc.dates the detec.or responses of GEc.M,but also initiates a c.mprehensive investigation of the nonlinearity of domestic.lly produc.d lanthanum bromide and sodium iodide c.ystals.

关键词： LaBr_(3)(c.)detec.or LaBr_(3)(c.,Sr)detec.or NaI(Tl)detec.or GEc.M Energy response Light yield nonlinearity