Results 141 to 150 of about 5,423 (259)

Optimization of Blasting‑Induced Roof Cutting Parameters in Key Stratum and Its Application in Gob‑Side Entry Retention Technology

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

Next-gen geothermal could bring clean power to much more of the planet. [PDF]

Proc Natl Acad Sci U S A
Battersby S.
europepmc   +1 more source

Damage Characteristics and Stress Distribution Law of Overburden Rock in Multiple Mining of Close Coal Seams

Energy Science &Engineering, EarlyView.
This study on close coal seams shows that multi‐seam mining increases the height of the fractured zone from approximately 26 m (single upper‐seam mining) to about 49 m. When the lower seam is mined after the extraction of the upper seam, the heights of both the caved zone and the fractured zone increase by approximately two times.
Xiaoyu Wu, Lei Guo, Zedong Sun, Xiaowei Wu, Nan Zhang   +4 more
wiley   +1 more source

Research and application of quantitative model for optimal well trajectory selection. [PDF]

Sci Rep
Xiao Y, Zhou T, Su H, Li J, Song L, Kong X, Qian F.   +6 more
europepmc   +1 more source

Nutritional, Functional, and Anti‐Hypercholesterolemic Properties of Sourdough Breads From Unripe Plantain, Tiger Nut, and Fenugreek Flours

Food Chemistry International, EarlyView.
Composite sourdough breads were developed from blends of unripe plantain, tiger nut, and fenugreek flours. Optimized formulations improved pasting stability and enhanced texture, producing softer more elastic crumbs. The enriched breads contained higher dietary fiber and bioactive compounds, and significantly reduced serum cholesterol markers ...
Mary T. Ademosun, Olufunmilayo S. Omoba, Ganiyu Oboh, Adedamola I. Akinyede, Rukayat O. Awolola   +4 more
wiley   +1 more source

Extrapolating rock physicochemical properties from discrete sample data using computer vision. [PDF]

PNAS Nexus
Grant LJC, Lington J, Carter EJ, Teagle DAH, Belgrano TM, Coggon RM.   +5 more
europepmc   +1 more source

Multiphase Tectonic Process With Slab Dynamics in the Northern East China Sea Shelf Basin

Geological Journal, EarlyView.
Megasequence 1 characterised by Palaeocene extension and differential subsidence driven by the rollback of the subducting Izanagi Plate. Megasequence 2 records a kinematic reorganisation of the East Asian margin, transition from a rifting to a compressional regime.
Juhwan Woo, Won‐Ki Kim, Chul Woo Rhee, Seungyeol Lee   +3 more
wiley   +1 more source

Investigating ancient human DNA preservation on cave walls and in rock art. [PDF]

Nat Commun
Bossoms Mesa A, Essel E, Jáuregui L, Galtier A, Zavala EI, Nota K, Szymanski M, Zorn J, Gomes H, Nash GH, Rosina P, Lattao V, Oosterbeek L, Carpetudo C, Almeida NA, de Las Heras C, Fatás P, Prada A, Díaz-González LM, Sánchez-Moral ME, Martínez Villa A, Menéndez Fernández M, García Arranz JJ, von Petzinger G, Cantalejo P, Fernández LE, Ramos-Muñoz J, Fernández Sánchez DS, Mira HA, Muñoz Fernández E, Montes-Barquín R, Ontañón R, Kelso J, Prüfer K, Vernot B, Hajdinjak M, Shao Q, Garcês S, Collado Giraldo H, Meyer M.   +39 more
europepmc   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Composite filter-based detection of rock joints from drilling parameters. [PDF]

Sci Rep
Tong J, Zhang Y, Huang H, Xiong J, Luo Y.   +4 more
europepmc   +1 more source