Results 61 to 70 of about 3,587 (209)

Ground Stress Distribution and Dynamic Pressure Development of Shallow Buried Coal Seam Underlying Adjacent Room Gobs

Shock and Vibration, 2021
The condition of the coal pillars remained in the room-and-pillar gobs is complicated. The stresses loaded on the pillar floor may be transmitted and overlapped.
Ming Zhang, Chen Cao, Bingjie Huo
doaj   +1 more source

Shaping Manager Well‐Being and Functioning in Declining Nonprofit Organizations: The Critical Role of Strategy Implementation

Nonprofit Management and Leadership, EarlyView.
ABSTRACT Under the roof of Christian churches in Central Europe, some nonprofit organizations (NPOs) grow, while others are in marked decline. Our study in this context extends a previous focus on financial indicators to NPO managers' experiences, their role clarity and job satisfaction, during phases of organizational growth and decline. Specifically,
Max Niehoff, Johannes Stark
wiley   +1 more source

Burial-Related Compaction Modifies Intrusion-Induced Forced Folds: Implications for Reconciling Roof Uplift Mechanisms Using Seismic Reflection Data

Frontiers in Earth Science, 2019
Space for shallow-level sills and laccoliths is commonly generated by bending and uplift of overlying rock and sediment. This so-called “roof uplift” produces forced folds, the shape and amplitude of which reflect the geometry of underlying intrusions ...
Craig Magee, Craig Magee, Murray Hoggett, Christopher A.-L. Jackson, Stephen M. Jones   +4 more
doaj   +1 more source

Mental health benefits of urban green—A systematic review and meta‐analysis of 56 pre‐post control experiments

People and Nature, EarlyView.
Abstract Background. Fostering healthy urban living conditions is a critical public health objective. One efficient approach lies in the contact to nature, as numerous studies have shown that urban and peri‐urban natural elements both indoors and outdoors carry a large potential in buffering typical urban threats to mental health.
Marilisa Herchet, Marek Venený, Lukas Kauls, Clara Mentzel, Timon Krause, Caroline Surrey, Mathias Hofmann   +6 more
wiley   +1 more source

Nondestructive Quantification of Water Ingress in PV Modules via Spectroscopic and Chemical Analysis for Enhanced Quality Assurance and On‐Site Inspection

Progress in Photovoltaics: Research and Applications, EarlyView.
This study presents a novel, nondestructive in situ method to quantify water ingress using near‐infrared absorption (NIRA) spectroscopy, calibrated with absolute water content via Karl–Fischer titration (KFT). The presented approach offers a powerful quality assurance and inspection tool for module manufacturers and solar developers, supporting ...
Daniel Schüsler, Michael Wendt, Oleksandr Mashkov, Dylan Clark, Oleksandr Stroyuk, Bengt Jäckel, Ian Marius Peters, Claudia Buerhop‐Lutz, Anton Mordvinkin   +8 more
wiley   +1 more source

Mechanical Response Analysis of Semi-Detached Movable Roof and Optimization of Subrail Foundation Reinforcement

Buildings
Ground-based movable roof construction offers advantages such as flexible adjustment, energy conservation, environmental protection, improved comfort, structural stability, and high space utilization.
Ziguang Zhang, Ankang Hu, Xiaopeng Li, Shuai Kang, Cheng Zhang   +4 more
doaj   +1 more source

A Self‐Supervised Machine Learning Approach for the Estimation of Open‐Circuit Voltage Degradation in Photovoltaic Systems

Progress in Photovoltaics: Research and Applications, EarlyView.
This study introduces a self‐supervised machine learning approach integrating physics‐based principles to estimate open‐circuit voltage (voc$$ {v}_{oc} $$) degradation in photovoltaic systems using SCADA data. By combining clustering and regression algorithms, our method detects performance deviations without labelled datasets.
Sandra Riaño, Jose‐Domingo Santos, Miguel Esteras, Amaia Abanda, Javier Del Ser   +4 more
wiley   +1 more source

Characterization of fissure distribution of overburden rock under roof cutting and entry retaining based on key strata theory

Meitan kexue jishu
Aiming at the problem of changing the distribution of overburden fissures in the overhead mining area due to the cutting and retaining roadway process, the stress distribution, overburden transport and mining fissure distribution law in the mining zone ...
Haiqing SHUANG, Yueqiang XIN, Shugang LI, Haifei LIN, Bin ZHOU, Yingzhi SHANG, Sibo LIU   +6 more
doaj   +1 more source

Trial comparison of the medieval malt-kilns from Polish and Czech territories on selected examples

Kvasný průmysl, 2016
Malt kilns with complex and specialized construction became popular in Central Europe in the XIVth century. They consisted of two basic elements: heating unit and supported on it the grid (drying floor). Depending on the kind of the construction of these
Dobiesław Karst
doaj   +1 more source

Three‐Year Propagation Experiment at Ku‐, Ka‐, and Q‐Band in French West Indies

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT From January 2021 to December 2023, the Office National d'Etudes et de Recherches Aérospatiales (ONERA) and the Centre National d'Etudes Spatiales (CNES) conducted a three‐year Earth‐space propagation measurement campaign in Guadeloupe. The experiment used beacon receivers deployed in Pointe‐à‐Pitre airport to record signals at 11.2, 19.7, and
Jean‐Pascal Monvoisin, Laurent Castanet, Laurent Féral, Xavier Boulanger   +3 more
wiley   +1 more source