Results 81 to 90 of about 1,733 (262)

Research on Optimal Width of Coal Pillars in Both Sides of Abandoned Mining Areas and Tunnel Control Technology

Energy Science &Engineering, EarlyView.
This study primarily investigates the optimal width for coal pillar retention in both sides of the worked‐out face section. Taking the 42201 haulage roadway of the 42201 working face at Shengxin Coal Mine as the primary research target, it analyses the optimum width for coal pillar retention through theoretical calculations, numerical simulations, and ...
Shuaifeng Yin, Kanglei Han, En Wang, Yitao Yan, Xubo Zhao   +4 more
wiley   +1 more source

Paperless mapping and cave archaeology: A review on the application of DistoX survey method in archaeological cave sites [PDF]

Journal of Archaeological Science: Reports, 2018
Geodetic Stations and Differential Global Positioning Systems are the dominant instruments for mapping in archaeological contexts. However, there are not equal counterparts for cave archaeology survey. There is no way for DGPSs to work inside a cave and use of geodetic station is limited only in relatively dry and wide parts of the caves. This paper is
openaire   +2 more sources

Practice adoption in MNCS: A multi‐level interactionist model of trait activation

Global Strategy Journal, EarlyView.
Abstract Research Summary Sharing knowledge through organizational practices is an important source of advantage for multinational corporations (MNCs). While prior research on practice adoption by subsidiaries of MNCs has identified several individual and organizational factors, this study examines their interplay in the context of HQ‐mandated ...
Sven Kunisch, Ulrich Leicht‐Deobald, Tomi Laamanen, Adrian Schulte Steinberg, Björn Ambos   +4 more
wiley   +1 more source

Investigating mechanical and geometrical effects of joints on minimum caving span in mass caving method

International Journal of Mining and Geo-Engineering, 2023
This paper investigates the effect of jointed rock mass properties on the Minimum Required Caving Span (MRCS) in the block caving method using numeric and heuristic approaches. To do so, the effects of five parameters of jointed rock mass, namely joint set number, joint spacing, joint inclination angle, joint surface friction angle, and undercut depth ...
Behnam Alipenhani, Abbas Majdi, Hassan Bakhshandeh Amnieh   +2 more
openaire   +1 more source

Oral Cryptococcosis due to Naganishia diffluens in a Patient With Thalassemia: A Case Report and a Literature Review

Journal of Clinical Laboratory Analysis, EarlyView.
Naganishia diffluens, a rare non‐neoformans cryptococcal species, was identified by PCR sequencing as the causative agent of oral cryptococcosis in a 31‐year‐old Iranian man with β‐thalassemia. This case represents the first documented instance of oral infection by N.
Zahra Yahyazadeh, Zeynab Haseli, Javad Javidnia, Mahdi Abastabar, Eisa Nazar, Hosein Jalali, Mohamad Taghi Hedayati, Hossein Karami, Mohsen Nosratabadi, Lotfollah Davoodi, Seyyed Reza Aghili, Maryam Moazeni, Iman Haghani, Hamid Badali   +13 more
wiley   +1 more source

Theory and key technologies for intelligent fully-mechanized top-coal caving faces of annual production of millions of tons

Meitan kexue jishu
The research focused on addressing various challenges in intelligent top caving theory, intelligent perception and recognition key technology, intelligent caving comprehensive decision-making technology, and remote caving intelligent control technology ...
Bin YU, Yang TAI, Gang XU, Yong LI, Dongyin LI, Shibo WANG, Tiejun KUANG, Ercun MENG   +7 more
doaj   +1 more source

Automated Profiling of Social Behaviors to Assess the Genetic Basis of Evolution of Aggressive Behaviors in Astyanax mexicanus

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Across the animal kingdom, social behaviors such as aggression are critical for survival and reproductive success. While there is significant variation in social behaviors within and between species, the genetic mechanisms underlying natural variation in social behaviors are poorly understood.
Renee Mapa, Stefan Choy, Solomia Lapko, Allison Kimmel, Isabel Carino‐Bazan, Johanna E. Kowalko   +5 more
wiley   +1 more source

Application of Finite Element Method for Simulation of Rock Mass Caving Processes in Block Caving Method

International Journal of Engineering, 2023
B. Alipenhani, H. Bakhshandeh Amnieh, A. Majdi   +2 more
openaire   +1 more source

Deglaciation of the Burren glacio‐karst, western Ireland, during Termination 1: Implications for North Atlantic climate and karstification

Journal of Quaternary Science, EarlyView.
Abstract The Burren uplands in western Ireland form one of the most extensive and best‐preserved examples of glacio‐karst in Europe. Subsumed by the Irish ice sheet during the Late Pleistocene, granite erratic boulders and in situ silica veins in the limestone bedrock provide a rare opportunity to reconstruct the timing and rate of deglaciation ...
Gordon Bromley, Colin Bunce, Brenda Hall, Aaron Putnam, Frank McDermott   +4 more
wiley   +1 more source

Insights into Red Deer Ecology during the Late Epigravettian: New isotopic evidence from Riparo Tagliente (Italian Prealps)

Journal of Quaternary Science, EarlyView.
Abstract The transition from the Last Glacial Maximum to the Late Glacial marked a shift from the cold conditions of Greenland Stadial‐2 (GS‐2) to the warmer phases of Greenland Interstadial‐1 (GI‐1), enabling the reoccupation of Alpine regions by Late Palaeolithic hunter‐gatherers.
Mahym Amanova, Dorothée G. Drucker, Federica Fontana   +2 more
wiley   +1 more source