Results 91 to 100 of about 4,310 (220)

Marine Isotope Stage 4 glaciation in northern England, UK: Evidence from Victoria Cave, North Yorkshire

Journal of Quaternary Science, EarlyView.
ABSTRACT Victoria Cave, north Yorkshire, England, contains a long sequence of Pleistocene clastic sediments and calcite flowstones. Earlier work, using U–Th dating, established that the flowstone units formed in interglacial stages corresponding to Marine Isotope Stages (MIS) 13, 11, 9, 7 and 5.
Tom C. Lord, Peter Wilson, Joyce Lundberg, Adrian P. Palmer, Matt W. Telfer, Rhiannon E. Stevens, Phillip J. Murphy, Mark Lewis   +7 more
wiley   +1 more source

Hydraulic reconstruction of catastrophic drainage from the Late Glacial, Lake Fraser, British Columbia, Canada

Journal of Quaternary Science, EarlyView.
ABSTRACT Glacial Lake Fraser, which formed in British Columbia against the retreating Cordilleran Ice Sheet, stored ~520 km3 of water before its near‐total drainage into the Salish Sea during an outburst flood event. Despite the impact of the outburst flood on sediment transport and landscape evolution in the Fraser River valley, its peak discharge and
Sean M. Loeffler, John J. Clague, Brendan G. N. Miller, Sophie L. Norris   +3 more
wiley   +1 more source

Study on Key Parameters of Hard Roof Cutting and Pressure Release and Roadway Retaining in Medium Thick Coal Seam

, 2020
Based on the engineering geological conditions of the hard roof of the medium thick coal seam in Dadougou Coal Mine, in order to implement the non-pillar mining technology of roof cutting and pressure release, the key parameters of roof cutting and ...
LIU Dajiang, XU Xuhui, ZHU Hengzhong, OUYANG Feng
core   +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

Key technologies for intelligent, efficient, and safe mining of impact thick coal seams due to hard roof [PDF]

To address the challenges of source-based rock burst elimination and efficient mining in ultra-thick coal seams prone to rock bursts due to hard roofs, a safety assurance technology was developed to create a favorable environment for intelligent and ...
Xiangbin MENG, Feilong GUO, Tiejun KUANG, Shibo WANG, Dongyin LI, Yang TAI, Ziyu SHANG, Mingxian PENG, Bin YU   +8 more
core   +1 more source

Nature, nature connection, and well‐being: A review of conceptual issues and opportunities

People and Nature, EarlyView.
Abstract Nature connection plays an important role in the relationship between nature contact and well‐being, but explanations of how this occurs are sometimes ambiguous while evidence is conflicting. Philosophical tensions in the way we study nature connection make it difficult to clarify these matters: while the idea of nature connection is grounded ...
Kathryn Williams, Rose Macaulay, Katherine Johnson, Cullan Joyce, Dianne Vella‐Brodrick   +4 more
wiley   +1 more source

Clinical periodontal diagnosis

Periodontology 2000, EarlyView., 2023
Abstract Periodontal diseases include pathological conditions elicited by the presence of bacterial biofilms leading to a host response. In the diagnostic process, clinical signs such as bleeding on probing, development of periodontal pockets and gingival recessions, furcation involvement and presence of radiographic bone loss should be assessed prior ...
Giovanni E. Salvi, Andrea Roccuzzo, Jean‐Claude Imber, Alexandra Stähli, Björn Klinge, Niklaus P. Lang   +5 more
wiley   +1 more source

Study on disaster mechanism of thick and hard overhanging roof and top cutting control technology

Gong-kuang zidonghua
To address the challenges of significant deformation and high instability risks in the surrounding rock of unsupported roadways beneath a laterally thick and hard overhanging roof, this study focused on the 3810 working face transport roadway in ...
GENG Ming, SUN Jing
doaj   +1 more source

Development of Cost‐Effective and Highly Transparent Melamine Formaldehyde Resin Modified With Sodium Chloride for Enhancing Glossiness and Abrasion Resistance of Melamine Impregnated Paper

Polymer Engineering &Science, EarlyView.
An eco‐friendly melamine‐formaldehyde was produced by the addition of sodium chloride as a modifier. Modified MF resin improved surface gloss and abrasion resistance of decorative paper and decreased the formaldehyde emission. Curing time of the MF resin decreased with the addition of sodium chloride.
Saeed Kamrani, Antonio Pizzi, Peyman Ahmadi, Nadir Ayrilmis, Ali Dorieh, Adam Sikora, Štěpán Hýsek, Kateřina Hájková, Meysam Mehdinia   +8 more
wiley   +1 more source

Initial weighting strength control of thick and hard roof based on pre-splitting blasting of whole roadway roof: numerical model and engineering verification

Thick and hard roof poses safety hazards to initial mining and caving of the working face due to its good integrity and large modulus. Taking the initial mining of No.
Yuxuan Wang, Chenyang Liu, Jingkun Zhu, Hui Li, Yiyi Wu   +4 more
core   +1 more source