Results 41 to 50 of about 1,575,255 (163)
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Photocatalytic hydrogen peroxide (H2O2) production from water and oxygen driven by solar energy represents a highly promising green and sustainable strategy. Herein, lignin‐derived carbon quantum dots (LCDs) were strategically introduced at the heterojunction between a Bi‐based metal organic framework (Bi‐MOF) and ZnIn2S4 (ZIS).
Wanpeng Sun +8 more
wiley +1 more source
Gaoya dianqi, 2016 介绍了国内550 kV GIS的现状,详细说明新研制的550 kV紧凑型GIS设备的技术参数及结构特点。该550 kV GIS设备额定电流达到6 300 A,开断电流达到63 k A,隔离开关、接地开关及断路器机械寿命试验均达到M2级;其断路器灭弧室采用单断口结构,且断口间不装设并联电容器,机构为集成式油压机构;隔离开关与接地开关采用集成式、模块化设计,具备成本低、结构简单的特点。通过对关键元件及整体的仿真分析及小型化设计,实现了GCB+DS/ES+CT整体安装、调试和运输,减少了工厂内试验次数 ...
赵文强 +5 more
doaj
, 1995 国有企业一旦改造为股份制企业。企业的组织结构和运行机制将发生重大变化。由于产权结构受原来的资产存量产权的归属关系及其结构的影响,股份将主要由原有资产折股而成,而企业为了增资在市场上公开发行的股票或内部发行的股票占企业股份总额的比重并不很大,这就使得我国许多股份制企业的产权结构以国有股和法人股为主。国有企业资产是由国家无偿投入的,所有的企业产权都归属于唯一产权主体——国家。国有企业改造成股份制后,原有国有企业单一的产权主体将转变为多元产权主体,产权结构形成多元格局。从理论上讲 ...
何诚颖
core
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT The central challenge in photocatalysis is to direct photogenerated electrons and holes toward the simultaneous and efficient production of hydrogen and value‐added chemicals. To address the pronounced charge recombination and sluggish surface kinetics of ZnIn2S4 nanoflowers, we construct a ternary photocatalyst synergistically decorated with ...
Xue Men, Haiou Liang, Man Zhang, Jie Bai
wiley +1 more source
, 2002 调整农业生产结构,增加农民收入,关键是避免农业生产结构的雷同。示范户的带动将加快同类产品种植的推广,但正是这种推广方式,容易造成种植规模失控,形成生产过剩。政府在引导农民进行生产结构调整过程中,需要提倡合理分工,控制总量,拓宽农民增收渠道,提供更多的选择机会,防止社会某一农产品生产的过量投入,避免恶性竞争,达到调整结构 ...
林民书
core
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Microstructural characterization of Li0.32La0.56Fe0.01Ti0.94Sb0.06O3 (LLFeTSO) using AC‐TEM revealed that Fe3+/Sb3+ ion co‐doping induces the migration of lattice oxygen to grain boundaries (GBs), enhancing GB conductivity. However, the atomic arrangement at the GBs remains highly ordered and lacks sufficient cation vacancy carriers.
Binxuan Jiang +8 more
wiley +1 more source
, 1995 采用成对比较假设测验，通径分析及Ｓ•Ａ•Ｅｂｅｒｈａｒｔ—Ｗ•Ｌ•Ｒｕｓｓｅｌｌ方法，分析了小麦新品种川育１２在四川、云南、贵州三省４６个不同地点的产量、产量构成因素及其稳定性。结果表明：川育１２属高产稳产型品种，增产潜力大．适应性广。产量与单位面积穗数、穗粒数、千粒重的多元回归方程为：ｙ＝－１９６８．１５０＋１９５．０６３Ｘ１＋４５．２４０Ｘ２十２４．４０８Ｘ３。单位面积穗数对产量的效应最大，偏相关系数ｒ１ｙ＝０．８６６３，通径系数Ｐ０１＝０．９８００，其次是穗粒数，偏相关系数及通径系数分别为０ ...
吴瑜
core
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Multifunctional thermal protective ceramic thermal/environmental barrier coatings (T/EBCs) are of great significance for applications of various high‐temperature components, and we propose an effective strategy for designing high‐entropy ceramics (HECs) as T/EBCs for SiC ceramic matrix composites (CMCs), where low thermal expansion ...
Qinshuo Wang +7 more
wiley +1 more source
The analysis of decalin pyrolysis property under supercritical conditions(十氢萘的超临界裂解性能分析)
Zhejiang Daxue xuebao. Lixue ban, 2014 以十氢萘为吸热型碳氢燃料的模型化合物，研究其在550~610 ℃和0. 1~3. 5 MPa条件下的热裂解过程. 实验表明：不同温度（特别是相对较高的590和610 ℃）下，十氢萘在0. 1~2. 0 MPa压力下的转化率增加较为显著；十氢萘热裂解的主要气体产物有甲烷、乙烷、乙烯、丙烷、丙烯和碳原子数大于3的组分(C3+)等；在相同温度条件下，甲烷、乙烯的含量随压力增加而降低；乙烷、丙烷、丙烯和C3+的含量随压力增加而增加.裂解的气相产物中烯烃含量随温度升高而降低.液相产物主要包括环戊烷类、环戊烯类 ...
XINGYan(邢燕) +2 more
doaj +1 more source