Results 91 to 100 of about 316,599 (309)

Pilot Optimization and Channel Estimation for Multiuser Massive MIMO Systems

, 2014
This paper proposes novel pilot optimization and channel estimation algorithm for the downlink multiuser massive multiple input multiple output (MIMO) system with $K$ decentralized single antenna mobile stations (MSs), and time division duplex (TDD ...
Bogale, Tadilo Endeshaw, Le, Long Bao
core   +1 more source

From Green Governance to Biodiversity Strategy: The Role of Environmentally Experienced Directors in Chinese Firms

Business Strategy and the Environment, EarlyView.
ABSTRACT This study investigates how directors with environmental protection (EP) backgrounds influence corporate biodiversity concern (BIO) among Chinese A‐share listed firms from 2008 to 2023. Drawing on Upper Echelons Theory, we argue that directors' environmental expertise shapes firms' biodiversity strategies.
Chengming Huang, Sultan Sikandar Mirza, Chengwei Zhang   +2 more
wiley   +1 more source

Evaluation of SIR-A (Shuttle Imaging Radar) images from the Tres Marias region (Minas Gerais State, Brazil) using derived spatial features and registration with MSS-LANDSAT images [PDF]

Two image processing experiments are described using a MSS-LANDSAT scene from the Tres Marias region and a shuttle Imaging Radar SIR-A image digitized by a vidicon scanner.
Dutra, L. V., Kux, H. J. H., Parada, N. D. J.   +2 more
core   +1 more source

CFD simulation of modified solar still for effective condensation and evaporation: energy and exergy analysis

Frontiers in Water
Water scarcity is a global challenge, underscoring the importance of efficient water resource management. Solar stills offer a cost-effective method to convert brackish water into potable water but face productivity limitations.
Rajesh Kumar, Laveet Kumar, Nayyar Hussain Mirjat, Khanji Harijan   +3 more
doaj   +1 more source

Optimally Carbonized Mangrove Wood–Derived Hard Carbon with a Soft Carbon Coating for High‐Performance Sodium‐Ion Battery Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
High‐performance SIB anodes are developed using mangrove wood–derived hard carbon, optimized through controlled carbonization temperatures and pitch‐derived soft carbon coatings. The resulting PC‐10 composite achieves a superior reversible capacity of 297.5 mAh g−1 and an 82% ICE by suppressing irreversible reactions and enhancing interfacial stability
Hyung‐Keun Shin, Gyoo‐Rin Kim, Seong‐Ju Han, Jeong Mi Yeon, Hyun‐Kyung Kim   +4 more
wiley   +1 more source

Macroscopic superposition states of ultracold bosons in a double-well potential

, 2011
We present a thorough description of the physical regimes for ultracold bosons in double wells, with special attention paid to macroscopic superpositions (MSs).
A. Collin, A. I. Streltsov, A. Isacsson, A. J. Leggett, A. J. Leggett, A. Smerzi, B. Brezger, B. Julia-Diaz, B. V. Hall, B. Wu, B. Wu, C. Lee, C. Lee, C. Lee, C. Menotti, C. Xu, D. A. R. Dalvit, D. Ananikian, D. Masiello, D. R. Dounas-Frazer, D. W. Hallwood, E. A. Ostrovskaya, F. Dalfovo, F. Piazza, F. W. Strauch, G. F. Wang, G. Ferrini, G. J. Milburn, G. Mazzarella, G. Watanabe, G. Wirth, H. J. Lipkin, H. Pichler, I. E. Mazets, I. Zapata, J. A. Dunningham, J. Higbie, J. I. Cirac, J. Javanainen, J. Liu, J. Sebby-Strabley, J. Vidal, K. Sakmann, K. W. Mahmud, L. D. Carr, M. A. Garcia-March, M. Albiez, M. Arndt, M. J. Steel, M. Lewenstein, M. Olshanii, N. W. Ashcroft, O. E. Alon, R. Gati, R. Kanamoto, R. W. Spekkens, S. Dusuel, S. G. Kalosakas, S. Giovanazzi, S. Levy, S. Zollner, T. Calarco, T. Müller, T. Schumm, U. Schollwoeck, V. W. Scarola, W. D. Li, W. V. Liu, X. X. Yang, Y. P. Huang, Z. F. Xu, Z. Idziaszek   +71 more
core   +1 more source

Exploring the Influence of Economic and Environmental Knowledge on Fish Production in Rural-Bangladesh

Social Development & Security
Purpose: is to investigate the impact of economic and environmental knowledge on fish production in rural Bangladesh. The research seeks to determine how various factors, such as human labor costs, feed costs, manure, fingerlings, water supply, and ...
Linda Bairagi, Tanbir Hossain, Sk. Mahrufur Rahman, Tanjila Sheikh   +3 more
doaj   +1 more source

Rational design of Ni‐based catalysts for methane dry reforming: Recent advances and future perspectives

FlexMat, EarlyView.
Addressing the challenges inherent in dry reforming of methane (DRM), this paper focuses on the structural design and performance optimization of Ni‐based catalysts. The modulation strategies for DRM are systematically reviewed across four dimensions: the micromorphology of active metals, metal‐support interactions, electronic modifications by ...
Bowei Cao, Junlei Zhang, Wanglei Wang
wiley   +1 more source

CNPq/INPE-LANDSAT system [PDF]

The current status of the Brazilian LANDSAT facilities operated by Instituto de Pesquisas Espaciais (INPE) and the results achieved during the period from October 1, 1984 to August 31, 1985 are presented.
Debarrosaguirre, J. L.
core   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source