Results 21 to 30 of about 1,168,064 (316)

Keeping Environmental Enrichment Enriching

International Journal of Comparative Psychology, 2002
The use of novel objects as environmental enrichment devices is a key aspect of many environmental enrichment programs, regardless of whether the animals being enriched are housed in aquaria, zoos, or laboratories. The effectiveness of novel objects as enrichment devices depends on a number of factors, many of which are based on findings from ...
Kuczaj, Stan, Lacinak, Thad, Fad, Otto, Trone, Marie, Solangi, Moby, Ramos, Joana   +5 more
openaire   +3 more sources

Parameter Optimization Study of Gas Hydrate Reservoir Development Based on a Surrogate Model Assisted Particle Swarm Algorithm

Geofluids, 2022
Using surrogate model to assist parameter optimization of oil and gas reservoir development can greatly reduce the call times of numerical simulator and accelerate the optimization process.
Le Zhang, Xin Huang, Jiayuan He, Xueqi Cen, Yongge Liu   +4 more
doaj   +1 more source

Potential and future exploration direction of marine shale gas resources in China

Shiyou shiyan dizhi, 2023
Marine shale gas, represented by the shale gas from Wufeng-Longmaxi formations in southern China, is the main field for shale gas exploration and development in China.
Min LI, Yali LIU, Dongjun FENG, Baojian SHEN, Wei DU, Pengwei WANG   +5 more
doaj   +1 more source

Spatial learning in pigs: effects of environmental enrichment and individual characteristics on behaviour and performance [PDF]

, 2009
Contains fulltext : 77372.pdf (Publisher’s version ) (Closed access)This study investigated the effects of both environmental enrichment and individual behavioural characteristics on spatial cognitive capabilities of pigs, using a novel
Jarno Jansen, J. Elizabeth Bolhuis, Schouten, W.G.P., Spruijt, B.M., Willem G. P. Schouten, Wiegant, V.M., Bolhuis, J.E., Berry M. Spruijt, Jansen, J., Victor M. Wiegant   +9 more
core   +1 more source

Three-Dimensional Morphology and Connectivity of Organic Pores in Shale from the Wufeng and Longmaxi Formations at the Southeast Sichuan Basin in China

Geofluids, 2021
Organic pores play an important role in shale reservoirs. Organic pores occur where shale gas was produced and accumulated. However, there is little scientific understanding of the distribution and connectivity of organic pores.
Tao Jiang, Zhijun Jin, Zongquan Hu, Wei Du, Zhongbao Liu, Jianhua Zhao   +5 more
doaj   +1 more source

A partition of unity FEM for time-dependent diffusion problems using multiple enrichment functions [PDF]

, 2013
An enriched partition of unity FEM is developed to solve time-dependent diffusion problems. In the present formulation, multiple exponential functions describing the spatial and temporal diffusion decay are embedded in the finite element approximation ...
Mohamed, M.S., Seaid, Mohammed, Shadi Mohamed, M.; id_orcid, Trevelyan, Jon, Seaid, M., Laghrouche, Omar; id_orcid, Trevelyan, J., Laghrouche, O.   +7 more
core   +1 more source

Intelligent prediction and integral analysis of shale oil and gas sweet spots

Petroleum Science, 2018
Shale reservoirs are characterized by low porosity and strong anisotropy. Conventional geophysical methods are far from perfect when it comes to the prediction of shale sweet spot locations, and even less reliable when attempting to delineate ...
Ke-Ran Qian, Zhi-Liang He, Xi-Wu Liu, Ye-Quan Chen   +3 more
doaj   +1 more source

Study on Improving Condensing Capacity of 30B Container

Journal of Isotopes
Aiming at the insufficient condensation capacity of the 30B vessel in the late stage of receiving in the current uranium enrichment plant，a copper triangular heat dissipation rib was designed，and the heat dissipation performance of the 30B vessel in the ...
Ke OU, Chengming GUAN, Xiaodong JIN, Weidong ZHOU, Jinxing WANG, Juncai WANG, Jian TANG, Haijun WU, Zengzu FAN, Ling LI   +9 more
doaj   +1 more source

Evaluating Pore Structure of Shale Reservoirs through Pore Space Multifractal Characterization

Geofluids, 2023
Characteristics of pore structure are crucial to oil exploration and development in shale reservoirs, but practical evaluation of shale pore structure remains a longstanding challenge.
Quanqi Dai, Yingfu He, Da Zheng, Yangwen Zhu, Rui Wang, Hongmin Yu, Yinbang Zhou, Guiwen Wang, Yafeng Li, Hao Wu   +9 more
doaj   +1 more source

Enriched order polytopes and enriched Hibi rings [PDF]

European Journal of Mathematics, 2020
AbstractStanley introduced two classes of lattice polytopes associated to posets, which are called the order polytope $${{\mathscr {O}}}_P$$ O P and the chain polytope $${{\mathscr {C}}}_P$$ C P
Hidefumi Ohsugi, Akiyoshi Tsuchiya
openaire   +2 more sources