Results 11 to 20 of about 15,478 (288)

Freeze–thaw fracturing in building granites [PDF]

Cold Regions Science and Technology, 2015
Peer ...
Freire, D. M., Fort González, Rafael, Varas, María José   +2 more
openaire   +4 more sources

Fractal-Based Retrieval and Potential Driving Factors of Lake Ice Fractures of Chagan Lake, Northeast China Using Landsat Remote Sensing Images

Remote Sensing, 2021
A thorough understanding of the freshwater ice process received considerable critical attention due to increasing winter recreations and ice engineering.
Xiaohua Hao, Qian Yang, Xiaoguang Shi, Xuemei Liu, Wenfeng Huang, Liwen Chen, Yue Ma   +6 more
doaj   +1 more source

Molecular Cytology of ‘Little Animals’: Personal Recollections of Escherichia coli (and Bacillus subtilis)

Life, 2023
This article relates personal recollections and starts with the origin of electron microscopy in the sixties of the previous century at the University of Amsterdam.
Nanne Nanninga
doaj   +1 more source

Electrostatically driven vacuum-encapsulated polysilicon resonators part I. design and fabrication [PDF]

, 1993
Basic design issues and a fabrication process based on surface-micromachining techniques for electrostatically driven vacuum-encapsulated polysilicon resonators are presented.
Legtenberg, Rob, Tilmans, Harrie A.C.
core   +7 more sources

Nuclear magnetic resonance study of the influence of the liquid nitrogen freeze‐thaw process on the pore structure of anthracite coal

Energy Science & Engineering, 2020
In recent years, liquid nitrogen (LN2) fracturing technology has been applied in coalbed methane (CBM) development. However, the impact of the liquid nitrogen freeze‐thaw process on the pore structure of anthracite coal has not yet been systematically ...
Yapei Chu, Haitao Sun, Dongming Zhang, Guo Yu   +3 more
doaj   +1 more source

Microstructural characterization of a Canadian oil sand [PDF]

, 2012
The microstructure of oil sand samples extracted at a depth of 75 m from the estuarine Middle McMurray formation (Alberta, Canada) has been investigated by using high resolution 3D X-Ray microtomography ($\mu$CT) and Cryo Scanning Electron Microscopy ...
Delage, Pierre, Dinh, Hong Doan, Nauroy, Jean-François, Souhail, Youssef, Tang, Anh-Minh   +4 more
core   +5 more sources

3D visualization of hydraulic fractures using micro-seismic monitoring: Methodology and application

Petroleum, 2022
In this paper, a new 3D visualization technical method was developed for hydraulic fractures using micro-seismic monitoring. This technical method consists of four steps: i. interpret the geologic hydraulic fracture model based on seismic source location
Chenghua Ou, Chenggang Liang, Zhaoliang Li, Li Luo, Xiao Yang   +4 more
doaj   +1 more source

Study on the pore evolution law of anthracite coal under liquid nitrogen freeze‐thaw cycles based on infrared thermal imaging and nuclear magnetic resonance

Energy Science & Engineering, 2019
The waterless fracturing method with liquid nitrogen (LN2) as the fracturing fluid has been proposed and successfully applied in coalbed methane (CBM) production in recent years.
Yapei Chu, Dongming Zhang
doaj   +1 more source

The Bacterial Nucleoid: From Electron Microscopy to Polymer Physics—A Personal Recollection

Life, 2023
In the 1960s, electron microscopy did not provide a clear answer regarding the compact or dispersed organization of the bacterial nucleoid. This was due to the necessary preparation steps of fixation and dehydration (for embedding) and freezing (for ...
Conrad L. Woldringh
doaj   +1 more source

Fusion of isolated myoblast plasma membranes [PDF]

, 1978
Fusion of plasma membranes isolated from myoblasts grown in culture has been investigated. 1. 1. Membrane fusion was specifically dependent on Ca2+ at physiological concentrations. However, at higher concentrations of cations, fusion could be triggered
Ahkong, Batzri, Berl, Berlin, Burwen, Croce, Dahl, Dahl, Dahl, De Camilli, Douglas, Dreifuss, Fairbanks, Gratzl, Gratzl, Gratzl, Hauser, Holtzer, Kalderon, Kantor, Kent, Lawson, Lee, Maeda, Martin, Okada, Okada, Onishi, Orci, Pagano, Papahadjopoulos, Papahadjopoulos, Papahadjopoulos, Papahadjopoulos, Pauli, Peretz, Poole, Poste, Prives, Rash, Reed, Reeves, Sanger, Satir, Schimmel, Schlessinger, Schudt, Schudt, Schudt, Schudt, Shainberg, Shainberg, Van den Bosch, Van den Bosch, Van den Bosch, Vos, Weidekamm, Weidekamm, Yanofsky, Zakai   +59 more
core   +1 more source