Results 41 to 50 of about 271,344 (218)

Steam channeling control in the steam flooding of super heavy oil reservoirs, Shengli Oilfield

Petroleum Exploration and Development, 2012
In view of the severe steam channeling in the steam flooding of super heavy reservoir, lab experiment on steam channeling control were carried out. The combination of nitrogen foam and thermoset blocking agent was tested to seal steam channeling, in ...
Yanbin CAO, Dongqing LIU, Zhongping ZHANG, Shantang WANG, Quan WANG, Daohong XIA   +5 more
doaj   +1 more source

High-Expansion Foam: A Risk Control Option to Increase Passenger Ship Safety during Flooding

Applied Sciences, 2022
In naval architecture, the standard way adopted to reduce the risk of potential loss of life for passenger ships after an accident is via regulations.
Dracos Vassalos, Donald Paterson, Francesco Mauro, George Atzampos, Peter Assinder, Adam Janicek   +5 more
doaj   +1 more source

Toward Perception‐Native Electronic Skin: Bio‐Inspired In‐/Near‐Sensor and Neuromorphic Computing for Humanoid Robots

Advanced Materials Technologies, EarlyView.
Dense tactile streams from across the humanoid body converge on collide in a central wiring and data bottleneck. By relocating computation closer to and then into the skin itself, near‐ and in‐sensor architectures, together with neuromorphic computing, chart a path toward perception‐native electronic skin, in which the conversion of stimulus into ...
Mijin Kim, Chang‐Jae Beak, Jiyoung Park, Youngdo Jung, Sunjong Oh, Sin‐Hyung Lee, Bo‐Yeon Lee   +6 more
wiley   +1 more source

Experimental Study of Foam Flooding in Low Permeability Sandstones: Effects of Rock Permeability and Microscopic Heterogeneity [PDF]

Journal of Petroleum Science and Technology, 2019
Foam flooding (or injection of foam) is a common technology to enhance oil recovery. Although the effects of permeability on foam flooding were well studied in many laboratory experiments, little research has been focused on the specificity of low ...
Lin Sun, Daibo Li, Fanqi Zhao, Xiao Zhang, Di Wang, Ximing Tang   +5 more
doaj   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Experimental study on channeling plugging with in-situ generating foam in CO2 displacement process

Youqi dizhi yu caishoulu
In order to solve the problem of channeling in the process of CO2 displacement， a technique of the in-situ generating foam system carried by CO2 for formation flow and foam plugging was studied. The law of channeling plugging with in-situ generating foam
LU Xiaobing, LÜ Wei, ZHANG Man, QU Xiao, YAN Ruoqin, LIU Liang, DANG Faqiang, LI Songyan   +7 more
doaj   +1 more source

WorMa: An Undulatory Robot With Center of Mass Regulation via Internal Fluid Redistribution for Amphibious Locomotion

Advanced Robotics Research, EarlyView.
WorMa is an amphibious undulatory robot that uses Center of Mass redistribution as the sole terrain adaptation mechanism. This mechanism is based on internal fluid mass redistribution through a pump‐driven latex balloon system that creates three profiles: head‐biased, balanced, and tail‐biased.
Daniil Filimonov, Nana Obayashi
wiley   +1 more source

Study on Oil Displacement Effect of Air Foam Flooding in Heterogeneous Reservoir

Shiyou huagong gaodeng xuexiao xuebao
In the development process of Block G in Dagang Oilfield, the air foam flooding system exhibits favorable oil displacement performance. However, affected by factors such as foam preparation technology, gas injection volume, gas injection rate and ...
Jiaxin CHENG, Jinxiang LIU, Wenjing HUANG, Weijia CAO, Xiaoyan WANG, Wei WANG, Xianpei YIN   +6 more
doaj   +1 more source

Diastereomeric Monomers Enable Anion‐Exchange Membranes With Controlled Local Polymer Backbone Flexibility and High Conductivity

Advanced Science, EarlyView.
Stereochemistry enables control of ion‐exchange membrane properties via local backbone flexibility without altering the polymer composition. Syn‐enriched membranes show higher water uptake and improved water‐electrolysis performance, whereas anti‐enriched membranes exhibit higher hydration efficiency and improved mechanical properties.
Si Chen, Xuchen Lyu, Triet Nguyen Dai Luong, Patric Jannasch   +3 more
wiley   +1 more source

Atmospheric Water Harvesting Through Polymer Hydrogel Sorbents: Materials Chemistry, Design Strategies, and Applications

Advanced Science, EarlyView.
Polymer‐based hydrogels have emerged as promising materials for atmospheric water harvesting (AWH) due to their high water affinity, tunable network structure, and excellent moisture adsorption‐desorption performance. Functional hydrogel systems enable efficient water capture and controlled release under low‐energy conditions, offering a sustainable ...
Swagata Datta, Sushmit Sen, Nilanjan Dey, Amrita Chatterjee, Ananya Sadhu, Sudipta Sarkar, Pradip K. Maji   +6 more
wiley   +1 more source