Results 41 to 50 of about 181,059 (277)

Convex Polytopes and Quasilattices from the Symplectic Viewpoint [PDF]

, 2007
We construct, for each convex polytope, possibly nonrational and nonsimple, a family of compact spaces that are stratified by quasifolds, i.e. each of these spaces is a collection of quasifolds glued together in an suitable way.
D. Shechtman, E. Abe, E. Lerman, E. Prato, F. Battaglia, F. Battaglia, Fiammetta Battaglia, K. Karu, M. Goresky, P. Bressler, R. Penrose, R. Sjamaar, R.M. Robinson, T. Delzant, V. Guillemin   +14 more
core   +2 more sources

Sensitivity Analysis of Different Hydrothermal Characteristics in the Variable Thermodynamic Processes of Soft Clay Rock

Applied Sciences
Artificial ground freezing technology is the most important construction method of complex water-bearing soft clay rock. The thermodynamic properties of soft clay rock are important evidence for the design and construction of space resources development,
Tao Wang, Huixi Lin, Kexiong Ren, Jian Gao, Di Wang   +4 more
doaj   +1 more source

The Influence of Mining Height on Combinational Key Stratum Breaking Length

Procedia Engineering, 2011
AbstractMining height of coal seams plays a major role in the failure of the key stratum as well as combinational key stratum. Based on analyzing the relevant parameters of combinational key stratum, applying numerical analysis, the influence of mining height on combinational key stratum fracture, which is also the influence on the main roof weighting ...
openaire   +1 more source

Purification and Characterization of the Endoglycosidase Heparanase 1 from Human Plantar Stratum Corneum: a Key Enzyme in Epidermal Physiology? [PDF]

Journal of Investigative Dermatology, 2001
A protein exhibiting endoglycosidase activity was purified from plantar stratum corneum to apparent homogeneity in two sequential column chromatographic steps. Protein sequencing revealed its identity with the recently cloned human heparanase 1, an enzyme, the expression of which is reported to be related to the metastasic potential of tumor cells.
Bernard, Dominique, Méhul, Bruno, Delattre, Caroline, Simonetti, Lucie, Thomas-Collignon, Agnès, Schmidt, Rainer   +5 more
openaire   +2 more sources

Geochemical characterization and evaluation of shale oil bearing characteristics of Permian Pingdiquan Formation in eastern Junggar Basin

Unconventional Resources
Of the Permian Pingdiquan Formation in eastern Junggar Basin, western China, the continental shale oil is the principal prospective unconventional resources target. Our research described the analysis on core samples from the Permian Pingdiquan Formation
Yuchen Liu, Weibiao Zhang, Xin Yang, Huixi Lin   +3 more
doaj   +1 more source

Research on Key Technologies of Construction Of Tunnel in Aeolian Stratum: A Case Study of Shenmu No. 1 Tunnel [PDF]

, 2021
Abstract The naturally formed aeolian sand dunes in northern Shaanxi have unique engineering characteristics. Several difficulties restrict the construction of road tunnels under this stratum, such as the poor self-stabilization ability of the surrounding rock, difficultly in injecting grout, and insufficient construction experience. Therefore,
Fei YE, Xing Liang, Xiaoming Liang
openaire   +1 more source

Adherence to Protocol Recommendations for Children With Wilms Tumour in Two Consecutive Studies in the United Kingdom and Ireland—Does Variation Matter?

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Wilms tumour (WT) has excellent event‐free and overall survival (OS). However, small differences exist between countries participating in the same international study. This led us to examine variation in adherence to protocol recommendations as a potential contributing factor.
Suzanne Tugnait, R. Al‐Saadi, A. Lopez‐Cortes, K. Dzhuma, M. Oostveen, J. Brok, S. Irtan, M. Weeks, J. Bate, S. Baker, R. Williams, M. Powis, D. Saunders, O. Olsen, T. Watson, S. Shelmerdine, S. Vaidya, L. Howell, C. Duncan, G. M. Vujanic, C. Stiller, G. P. Balchin, T. Chowdhury, K. Pritchard‐Jones   +23 more
wiley   +1 more source

Thermal evolution of deeply buried lower Paleozoic strata and its influence on hydrocarbon accumulation in the Tarim Basin, Northwest China

Energy Exploration & Exploitation
The Ordovician carbonate reservoirs in the Tarim Basin are hotspots for oil and gas exploration in recent years. However, due to the lack of effective paleo-geothermometers in carbonate formations, thermal history studies have been greatly restricted. In
Yuchen Liu, Jian Gao, Huili Li, Anlai Ma
doaj   +1 more source

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior, Edmara Bazoni Soares Maia, Soad Fuentes‐Alabí, Courtney E. Sullivan, Monnie Abraham, Mauricio Maza, Liliana Vásquez Ponce, Regina Aparecida Garcia Lima   +7 more
wiley   +1 more source

Study on coal and gas outburst prediction technology based on multi-model fusion

Frontiers in Big Data
The rapid advancement of artificial intelligence (AI) and machine learning (ML) technologies has opened up novel avenues for predicting coal and gas outbursts in coal mines.
Qian Xie, Qian Xie, Qian Xie, Junsheng Yan, Junsheng Yan, Junsheng Yan, Junsheng Yan, Zhenhua Dai, Zhenhua Dai, Zhenhua Dai, Wengang Du, Wengang Du, Wengang Du, Xuefei Wu   +13 more
doaj   +1 more source