Results 41 to 50 of about 455,290 (303)

Tunable Coordination Number in Non‐Metal‐Introduced Copper Catalysts Enables High‐Performance Electrochemical CO2 Reduction to C2 Products

Advanced Functional Materials, EarlyView.
Copper catalysts introduced with different non‐metallic elements regulating the coordination number of Cu are prepared by magnetron sputtering. Reducing the Cu coordination number enhances C─C coupling and boosts C2+ product selectivity, by lowering the energy barrier for the *CO → *CHO conversion step. The optimized Si‐doped Cu catalyst achieves a C2+
Xiaoye Du, Bo Gao, Yixuan Yang, Young In Jo, Dan Qian, Chunhui Xiao, Shujiang Ding, Zhongxiao Song, Ki Tae Nam   +8 more
wiley   +1 more source

Reforms, entry and productivity: Some evidence from the Indian manufacturing sector [PDF]

, 2006
It is now stylized that, while the impact of ownership on firm productivity is unclear, product market competition can be expected to have a positive impact on productivity, thereby making entry (or contestability of markets) desirable.
Aghion, Alvarez, Aw, Baldwin, Barro, Besley, Bhagwati, Bhaumik, Bhaumik, Botero, Chari, de Soto, Djankov, Geroski, Hoover, Joshi, Jovanovic, Klapper, Kochhar, Krugman, Liu, Muller, Nickell, Pesaran, Pourgerami, Rodrik, Stasavage, Stennek, Tybout   +28 more
core   +1 more source

Complex Cryptographic and User‐Centric Physically Unclonable Functions Enabled by Strain‐Sensitive Nanocrystals via Selective Ligand Exchange

Advanced Functional Materials, EarlyView.
This study investigates electromechanical PUFs that improve on traditional electric PUFs. The electron transport materials are coated randomly through selective ligand exchange. It produces multiple keys and a key with motion dependent on percolation and strain, and approaches almost ideal inter‐ and intra‐hamming distances.
Seungshin Lim, Hanseok Seo, Taesung Park, Byung Ku Jung, Junhyeok Park, Young Kyun Choi, Dae Yang Oh, Soong Ju Oh   +7 more
wiley   +1 more source

Curved Nanographene–Graphite Hybrid Anodes with Sequential Li+ Insertion for Fast‐Charging and Long‐Life Li‐Ion Batteries

Advanced Functional Materials, EarlyView.
A hybrid anode composed of Cl‐functionalized curved nanographene and graphite enables ultra‐fast charging and long cycle life through an engineered morphology and sequential Li+ insertion. It delivers 100 mAh g−1 at 5 C with 70% capacity retention after 1000 cycles and maintains stable performance over 2000 cycles in pouch cells, providing a practical ...
Hyunji Cha, Minsung Kang, Seung Hak Oh, Jee Ho Ha, Jeongmi Joo, Dae Hyeon Kwon, Sang Kyu Kwak, Seokhoon Ahn, Seok Ju Kang   +8 more
wiley   +1 more source

Investigation of Electric Field Tunable Optical and Electrical Characteristics of Zigzag and Armchair Graphene Nanoribbons: An Ab Initio Approach

Nanomaterials
Graphene nanoribbons (GNRs), categorized into zigzag and armchair types, hold significant promise in electronics due to their unique properties. In this study, optical properties of zigzag and armchair GNRs are investigated using density functional ...
Recep Emir, Cagatay Tuncsiper, Dilek Surekci Yamacli, Serhan Yamacli, Sezai Alper Tekin   +4 more
doaj   +1 more source

Covalent Organic Frameworks for Water Sorption: The Importance of Framework Physical Stability

Advanced Functional Materials, EarlyView.
This study explores the water‐vapor stability of 2D covalent organic frameworks (COFs) with varying pore sizes. Results reveal microporous COFs demonstrate superior stability compared to mesoporous ones, despite lower water uptake. Mesoporous keto‐enamine‐linked COFs show enhanced stability due to intralayer hydrogen bonds, confirmed by simulations and
Wei Zhao, He Li, Bui Duc Thuan, Weidong Chen, Qiang Zhu, Mounib Bahri, Boyu Li, Kexin Yu, Chengjun Kang, Ting Chen, Zekun Wang, Nigel D. Browning, Kian Jon Chua, Dan Zhao   +13 more
wiley   +1 more source

Levantes urbanos na França Urban uprisings in France

Tempo Social, 2006
A onda de violência que atingiu a França em novembro de 2005 não pode ser explicada apenas como reflexo da crise de suas periferias urbanas. Dois outros níveis de análise devem ser também considerados: o da nação como limite da democracia, que a ...
Angelina Peralva
doaj   +1 more source

Ultrahigh Strength with Suppressed Flow Instability at Liquid Helium Temperature via Coherent Nanoprecipitation in a Medium‐Entropy Alloy

Advanced Functional Materials, EarlyView.
It is demonstrated that severe lattice distortion and coherent nanoprecipitates overcome the strength–ductility dilemma and mitigate discontinuous plastic flow (DPF) at 4.2 K. Such microstructural design enhances both thermal and athermal stress components, leading to exceptional mechanical performance.
Min Young Sung, Tae Jin Jang, Sang Yoon Song, Chang‐Gi Lee, Jun Ho Lee, Young‐Kyun Kim, Sang‐Ho Oh, Byeong‐Joo Lee, Alireza Zargaran, Se‐Ho Kim, Young‐Sang Na, Seok Su Sohn   +11 more
wiley   +1 more source

Democracy, Development and Industrial Policy in Nigeria [PDF]

, 2021
Abel B.S. Gaiya, F Aremu, P Kwaghe, D Agbiboa, S Jijji, G Austin, J Ayoade, M Bateman, S Beaulier, R Subrick, L Blaydes, E Chaney, K Chafe, C Clapham, S Crowley, M Stanojevic, L De La Escosura, T Dickovick, R Doner, B Ritchie, D Slater, C Ehret, D Enweremadu, Financial Times, L Gaeta, A Gaiya, E Green, J Gregor, M Chang, S Haggard, B-K Kim, C Moon, G Huan, E Ita, M Khan, M Khan, D Klnolu, M Kopsidis, D Bromley, M Lange, S Malevi, L Mann, M Berry, H Marwah, N Munshi, O Oduntan, O Owen, Z Usman, C Perrota, D Puga, D Trefler, S Ray, E Reinert, S Reinert, D Rodrik, V Grossman, Norman, A Rosser, N Rudra, R Sandbrook, M Somos, K Stapelbroek, A Trampus, S Stockwell, G Tridimas, Z Usman, C Vasillopulos, T Von Laue   +67 more
openalex   +1 more source

Maya Blue‐Inspired Hybrid Coating for Robust and Superhydrophilic Solar Evaporators Using Commercial Black Acrylic Paint

Advanced Functional Materials, EarlyView.
This study demonstrates a Maya blue‐inspired hybrid solar evaporator using commercial black acrylic paint, achieving 98% solar‐thermal conversion efficiency and 2.39 kg m−2 h−1 water evaporation rate through a durable, hydrophilic organic–inorganic structure that enables scalable, cost‐effective desalination and wastewater purification.
Dao Thi Dung, Do Van Lam, Young Kim, Wonzee Jung, Kanghoon Yim, Seung‐Mo Lee   +5 more
wiley   +1 more source