Results 151 to 160 of about 5,960 (305)

Fraternal Twins: Syntheses and Crystal Structures of Yb11O2(OH)[AsO3]8[As2O5] and Lu6O[AsO3]4[As2O5]

European Journal of Inorganic Chemistry, EarlyView.
The complex triclinic structure of Yb11O2(OH)[AsO3]8[As2O5] crystallizes in P1 (a = 843.81(6), b = 841.32(6), c = 1236.40(8) pm, α = 76.759(2), β = 71.726(2), γ = 85.347(2)°; Z = 1). The triclinic Lu6O[AsO3]4[As2O5] (P1¯$\overline{1}$; a = 836.72(6), b = 849.45(6), c = 1344.51(9) pm, α = 81.078(2), β = 85.289(2), γ = 86.034(2)°; Z = 2) can also be ...
Ralf J. C. Locke, Frank C. Zimmer, Thomas Schleid   +2 more
wiley   +1 more source

Lithium Diisopropylamide‐Mediated Ring‐Opening of Tetrahydrofuran in the Synthesis of Polyhydroxylated Indolizidines

European Journal of Organic Chemistry, EarlyView.
Chiral tri‐ and pentahydroxy spirocyclopentane‐indolizidines were synthesized using lithium diisopropylamide “LDA” promoted diallylation and tetrahydrofuran “THF” ring‐opening in a one‐pot procedure as a key step. The sequence leading to the targeted hydroxy‐spiroindolizidines was achieved by cis‐dihydroxylation followed by reduction of the enamine and
Paula Fraňová, Peter Šafář, Marchalín Štefan, Petra Pažitná, Ivana Žídeková, Ján Moncol, Adam Daïch   +6 more
wiley   +1 more source

The Distributive Consequences of Active Welfare Policies in Europe

European Policy Analysis, EarlyView.
ABSTRACT This article examines the distributive consequences of active welfare policies in Europe by analysing tier‐specific investments in individualised employment services across four European welfare states: Denmark, Germany, the Netherlands and the United Kingdom.
Deborah Jackwerth‐Rice, Katharina Zimmermann   +1 more
wiley   +1 more source

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

Energy Science &Engineering, EarlyView.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen, Hongchuan Dai, Guixin Zhang, Pengzhe Li, Tong Yang, Cang Gong, Renbo Gao   +6 more
wiley   +1 more source

Collocation and Galerkin Time-Stepping Methods

, 2011
We study the numerical solutions of ordinary differential equations by one-step methods where the solution at tn is known and that at t(sub n+1) is to be calculated.
Huynh, H. T.
core  

Recovery Factor of Pure Helium Injection in Depleted Gas Reservoirs and Its Influencing Factors

Energy Science &Engineering, EarlyView.
This study employs compositional numerical simulation to systematically investigate the effects of injection rate, production rate, storage duration, and injection‐production scheme on pure helium recovery in depleted gas reservoirs. Low injection rates reduce viscous fingering while high production rates maximize near‐wellbore helium extraction ...
Shijie Zhu, Danlin Chen, Yang Wang, Zuping Xiang, Zhijun Li, Mengna Yang, Da Li   +6 more
wiley   +1 more source

Mechanistic Understanding of Nickel Catalyzed Urea Oxidation Reaction to Cyanate and Nitrite

Exploration, EarlyView.
The urea oxidation reaction (UOR) is a promising alternative to oxygen evolution reaction (OER) for energy efficient hydrogen production, yet its reaction mechanism remains controversial because many proposed pathways have not been directly correlated with experimentally verified products and intermediates.
Kyu In Shim, Jiseon Kim, Miyeon Kim, Kangwoo Cho, Jeong Woo Han   +4 more
wiley   +1 more source

Keeping their powder dry: Purity, pollution, and handgun ownership among Jewish women in Israel

Feminist Anthropology, EarlyView.
Abstract This article examines the gendered practices through which Jewish women in Israel experience and negotiate personal handgun ownership in everyday life. Drawing on interviews, participant observation in gun‐related spaces, and analysis of women‐only online forums, we explore the expanding participation of Jewish women in civilian gun ownership,
Maya Maor, Nehemia Stern, Guy Nagar, Uzi Ben Shalom   +3 more
wiley   +1 more source

Integrating General and Vocational Education to Sustain and Renew Traditional Chinese Culture: A Case Study of Chongqing Three Gorges Vocational College

Future in Educational Research, EarlyView.
ABSTRACT This study investigates how a Chinese higher vocational college can align skills training with the inheritance and innovative development of fine traditional Chinese culture. Grounded in perspectives that view vocational education as cultural transmission and identity work and informed by the lenses of general‐vocational integration and ...
Yuchang Xu, Dequan Zhu, Jiancheng Tan, Xue Pan, Fukui Zhao, Dufan Cao, Ning Wang, Ying Tang   +7 more
wiley   +1 more source

Borophene‐based sensing platforms: Pioneering ultrasensitive detection

FlexMat, EarlyView.
Schematic Diagram of Performance Optimization Strategies and Sensing Application Characteristics of Two‐Dimensional Boron‐Based Materials in Novel Sensors. Abstract Borophene is an emerging two‐dimensional (2D) material. Since significant breakthroughs were achieved in the experimental synthesis of borophene, the exploration and development of ...
Chi Yuan, Yanpeng Ji, Yi Liu, Guoan Tai
wiley   +1 more source