Energy Science &Engineering, EarlyView.One‐way FLAC3D‐COMSOL coupled modeling and field validation show that a 150 mm borehole radius with 5 m spacing provides the best coordination of plastic‐zone expansion, stress relief, permeability enhancement, and gas‐pressure attenuation, increasing the pure gas drainage rate by 35.4%. ABSTRACT To rationally determine the borehole radius and borehole
Yewu Bi +7 more
wiley +1 more source
Stability of surrounding rock in roadways with fractured rock mass: mechanisms and effects of layout optimization. [PDF]
Sci RepHao H +6 more
europepmc +1 more source
Energy Science &Engineering, EarlyView.This study addresses hard roof coal seam conditions by optimizing key stratum blasting‐cutting parameters through theoretical analysis, numerical simulation, and field tests. It proposes calculation methods for blast hole spacing and delay timing based on stress wave theory, controlling roadway deformation within 35 mm, thereby enhancing resource ...
Qiong Liu, Duanxiang Fu, Hongbin Li
wiley +1 more source
Effect of the Solidifiable Spacer Fluid System on Hydraulic Sealing Ability of the Cement Sheath-Formation Interface. [PDF]
ACS OmegaFeng B +9 more
europepmc +1 more source
Learning From and Through Evaluation: An Examination of Practice
New Directions for Evaluation, EarlyView.ABSTRACT In this article, we provide an analysis across the foregoing practice‐based case exemplars to understand antecedent conditions and influences, learning‐oriented evaluation strategies, estimates of strategy success or potential success, and factors that either enable or hinder the extent to which learning from and through evaluation occurs. The
J. Bradley Cousins, Jill Chouinard
wiley +1 more source
Analyzing water recharge mechanisms and predicting water inflow in deep mining based on hydrogeological structures: a case study. [PDF]
Sci RepYuan S +5 more
europepmc +1 more source
Learning as Compost: Reorienting Evaluation in an Era of Authoritarian Drift
New Directions for Evaluation, EarlyView.ABSTRACT We synthesize insights from seven cases to interrogate a central assumption of the learning function of evaluation: Learning can be strengthened through better design, integration, or alignment with accountability systems. Taking the issue's conceptual framework seriously, the essay reflects what the cases reveal about the nature of learning ...
Tiffany L. S. Tovey, Jill Anne Chouinard
wiley +1 more source
Vision-Based Detection of Large Coal Fragments in Fully Mechanized Mining Faces Using Adaptive Weighted Attention and Transfer Learning. [PDF]
Sensors (Basel)Wang Y, Lei J, Li L, Lu Z, Xu L, Zhao S.
europepmc +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 +3 more
wiley +1 more source
A Review of the Research Progress of Sensor Monitoring Technology in Harsh Engineering Environments. [PDF]
Sensors (Basel)Liu Q, Wang Y, Zhao F, Zheng C, Xie J.
europepmc +1 more source