Results 71 to 80 of about 4,848,004 (344)

Study on the Influence of Bottom Hole Confining Pressure on High-Pressure Jetting Techniques

Shiyou jixie, 2021
As the development of oil and gas resources continues to deepen, the impact of bottom hole confining pressure on high-pressure water jetting has become more and more prominent. To compare the rock-breaking performance of high-pressure water jet under the
Li Jingbin, Huang Zhongwei, Wei Xiuli, Zhang Yiqun, Zhang Hongyuan, Huang Pengpeng   +5 more
doaj  

Suppression of low-frequency pressure pulsations in an open jet wind tunnel by corner vortex generators

AIP Advances, 2021
Suppression of low-frequency pressure pulsations using vortex generators at the jet nozzle is investigated for a large low-speed open jet wind tunnel.
Ling Jin, Haisheng Sun, Yubiao Jiang, Yong Liang, Junlong Zhang   +4 more
doaj   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

Numerical modeling of fracture propagation of supercritical CO2 compound fracturing

Journal of Rock Mechanics and Geotechnical Engineering
The exploitation of shale gas is promising due to depletion of the conventional energy and intensification of the greenhouse effect. In this paper, we proposed a heat-fluid-solid coupling damage model of supercritical CO2 (SC-CO2) compound fracturing ...
Hao Chen, Yong Kang, Wanchun Jin, Changhai Li, Can Cai   +4 more
doaj   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Numerical Simulation Study on Supercritical Nitrogen Jet Flow Field

Shiyou jixie, 2021
Conventional hydraulic fracturing technology faces problems such as high fracture initiation pressure and difficult packer setting in the stimulation of hot dry rock reservoirs.
Luo Yi, Huang Zhongwei, Shi Huaizhong, Xiong Chao, Yang Ruiyue, Chen Zhenliang   +5 more
doaj  

Impinging Performance of High-Pressure Water Jets Emitting from Different Nozzle Orifice Shapes

Geofluids, 2020
The impinging pressure of a water jet is a key factor in engineering applications, and the jet shape has a great influence on this pressure. In this paper, five different nozzle shapes were designed, and impacting tests were conducted based on a self ...
Fei Huang, Jianyu Mi, Dan Li, Rongrong Wang   +3 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Development of a High Pressure Water Jet Experimental Equipment

Shiyou jixie, 2019
Aiming at the shortcomings of test equipment in the field of water jet research, a set of high-pressure water jet indoor test system integrating test and control has been developed.
Liu Hui, Zhang Huali, Zeng Lixin, Li Guo, Xiong Feng, Wen Shujiang   +5 more
doaj  

Tool wear investigation in high-pressure jet coolant assisted machining Ti2AlNb intermetallic alloys based on FEM

International Journal of Lightweight Materials and Manufacture, 2018
The excellent mechanical properties of Ti2AlNb intermetallic compounds are beneficial to improve the performance of aero-engine. However, because of their high strength ratio especially at high temperature along with the low thermal conductivity of ...
Jiuhua Xu, Linjiang He, Honghua Su, Liang Zhang   +3 more
doaj   +1 more source