Results 161 to 170 of about 790,307 (296)

SADQN-Based Residual Energy-Aware Beamforming for LoRa-Enabled RF Energy Harvesting for Disaster-Tolerant Underground Mining Networks. [PDF]

Sensors (Basel)
Anabi HK, Frimpong S, Madria S.
europepmc   +1 more source

A Social Entrepreneurship Perspective of De‐Carbonising the Footprint through Recycling Compensation: A Case Study of the NGO Madre Coraje

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This research analyses the carbon footprint of the NGO Madre Coraje, using an integrated methodology that combines the calculator provided by REAS (Red de Economía Alternativa y Solidaria) Navarra and the Life Cycle Assessment (LCA). It quantifies emissions across the three scopes of the Greenhouse Gas Protocol, evaluating both direct and ...
José Fernandez‐Serrano, Juan A. Hueso, Orlando Vega‐Galeano   +2 more
wiley   +1 more source

A method for detecting safety helmets underground based on the YOLOv11-SRA model. [PDF]

Sci Rep
Wang L, Wan X, Shi X, Wang A.
europepmc   +1 more source

Man Underground

Journal of the Royal College of Physicians of London, 1969
openaire   +2 more sources

Breaking Down Online and Digital Reporting Practices: A Research Map From Websites to Social Media

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This paper adopts a mixed research methodology, integrating bibliometric and systematic literature review (SLR) tools, to systematise the academic contributions and the different bodies of knowledge generated over the last decades on online and digital reporting practices, ranging from websites to social media.
Giuseppe Nicolò, Serena Santis, Alberto Incollingo, Paolo Tartaglia Polcini   +3 more
wiley   +1 more source

A New Strategy to Design Reconfigurable Rivest–Shamir–Adleman (RSA) Accelerators

International Journal of Circuit Theory and Applications, EarlyView.
A reconfigurable FPGA‐based RSA accelerator is proposed using compression‐based modular multipliers combined with pseudomoduli arithmetic. The approach maps modular exponentiation to low‐cost arithmetic domains and applies a correction stage, achieving significant improvements in delay, operating frequency, and delay–area efficiency compared with ...
Augusto C. B. Vassoler, Gabriel B. M. Fernandes, Lucas R. Kieslich, Eduardo A. Bezerra, Hector Pettenghi   +4 more
wiley   +1 more source

Arbuscular mycorrhizal fungi regulate mineral element distribution in grapevines under pH stress. [PDF]

Front Plant Sci
Sun D, Du W, Wang Y, Wang Y, Wei S, Qin J, Gao Z, Sun Q, Dua Y.   +8 more
europepmc   +1 more source

Effect of Reaction Time and Temperature on the Impurity Profile of Amphetamine in the Leuckart Method

Drug Testing and Analysis, EarlyView.
This study investigates the effect of the reaction temperature (step 1) and reaction time (step 1 and 2) on the conversion efficiency and impurity profile of amphetamine synthesized via the Leuckart method. Conversion efficiency and impurity profile were assessed using gas chromatography–flame ionization detection (GC–FID) and GC–mass spectrometry (GC ...
Maartje C. M. Verhoeven, Robert C. Huls, Nelly W. van der Stelt, Jelle C. de Koning, Marco van Grol, Ruben F. Kranenburg, Arian C. van Asten, Janneke W. Hulshof   +7 more
wiley   +1 more source

Impact of Fire and Heat Stress on Soil Microorganisms: A Review of Community Changes, Molecular Responses and Plant-Beneficial Roles. [PDF]

Environ Microbiol Rep
Orozco-Mosqueda MDC, Flores-Piña A, Kumar A, Parra-Cota FI, de Los Santos-Villalobos S, Mitra D, Babalola OO, Santoyo G.   +7 more
europepmc   +1 more source

Probability prediction of true‐triaxial compressive strength of intact rocks based on the improved PSO‐RVM model

Deep Underground Science and Engineering, EarlyView.
In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang, Maohui Wang, Ning Wang, Yixin Shen, Xuzhen He   +4 more
wiley   +1 more source