A5087438632- Drilling and Well Engineering
- Tunneling and Rock Mechanics
- Rock Mechanics and Modeling
- Hydraulic Fracturing and Reservoir Analysis
- Soil and Unsaturated Flow
- Diverse Approaches in Healthcare and Education Studies
- Advanced machining processes and optimization
- Geothermal Energy Systems and Applications
- International Law and Aviation
- Geomechanics and Mining Engineering
- Groundwater flow and contamination studies
- Doping in Sports
- Conflict of Laws and Jurisdiction
- Engineering Education and Curriculum Development
- Legal Systems and Judicial Processes
- Geoscience and Mining Technology
- International Arbitration and Investment Law
- Spacecraft and Cryogenic Technologies
- Law, logistics, and international trade
- Advanced Battery Technologies Research
- Speech Recognition and Synthesis
- Speech and dialogue systems
- Natural Language Processing Techniques
- Mechatronics Education and Applications
- Advanced Text Analysis Techniques
Southwest Petroleum University
2016-2024
Gesellschaft für Anlagen und Reaktorsicherheit
2004-2024
National Center for Nanoscience and Technology
2017
Yanshan University
2017
Southwest University of Political Science & Law
2006-2013
Wuhan University
2010-2012
Northeastern University
2009-2012
New Technology (Israel)
2012
Daqing Oilfield General Hospital
2011
University of South China
2010
Self-sealing of fractures in the indurated Callovo-Oxfordian (COX) and Opalinus (OPA) claystones, which are considered as host rocks for disposal radioactive waste, was investigated on artificially fractured samples. The samples were extracted from four lithological facies relatively rich clay mineral, carbonate quartz, respectively. self-sealing measured by fracture closure, water permeability variation, gas penetration, recovery gas-induced pathways. Most exhibited a dramatic reduction to...
As is known, high-level radioactive waste (HLW) commonly heat-emitting. Heat output from HLW will dissipate through the surrounding rocks and induce complex thermo-hydro-mechanical-chemical (THMC) processes. In highly consolidated clayey rocks, thermal effects are particularly significant because of their very low permeability water-saturated state. Thermal impact on integrity geological barriers most importance with regard to long-term safety repositories. This study focuses numerical...
Numerical simulation on rock-breaking and drilling has been developed as a novel technic for designing performance analyzing of the bit. On basis theoretical research experimental test mesh-like cutting PDC bit, numerical model bit rock, process visualization are respectively studied. 3D rock model, bit-rock system is established interaction between researched. Then, bottom-hole from scattered point cloud using reconstruction method. other hand, calculation method related parameters studied...
This paper explores the problem of content-based rating inference from online opinion-based texts, which often expresses differing opinions on multiple aspects. To sufficiently capture information various aspects, we propose an aspect-based segmentation algorithm to first segment a user review into single-aspect textual parts, and aspect-augmentation approach generate aspect-specific feature vector each aspect for inference. tackle inconsistent annotation, present tolerance-based criterion...
For improving the drilling efficiency of polycrystalline diamond compact drill bit, a novel bit is presented with new rock-breaking method named as cross-scraping. In which referred to composite cutters are mounted on rotary wheels major cutting elements, and result, mesh-like scraping tracks formed in outer radial area bottom-hole. Rock-breaking causes both shearing fracture failure bottom-hole rock, will greatly increase prolong service life. By analyzing complex motion velocity...
The maximum radial size of the conventional three-bit four-way electromagnetic cartridge valve is greater than largest containable fluid control used for downhole robots. This paper proposes two kinds solutions to reduce dimension insertion valve: one arrangement coil and increase axial coil, other diameter moving iron core winding radius coil. Using theoretical model established in following text, a simulation experiment was conducted. results show that movement spool basically completed...
Abstract The excavation damaged zone (EDZ) around a radioactive waste repository will act as potential escape route for gases produced from anoxic corrosion of containers and other metallic components within the underground facility. For assessment impact on safety, gas-flow behaviour EDZ has to be characterized, understood predicted. This issue been recently investigated Callovo-Oxfordian Opalinus claystones at GRS laboratory. Various kinds experiments were carried out by flushing nitrogen...
Abstract As a potential host rock for deep geological disposal of radioactive waste, the Callovo‐Oxfordian and Opalinus clay rocks have been extensively investigated in laboratory with respect to deformation under various thermo‐hydro‐mechanical conditions: (1) stresses covering range from initial lithostatic state redistributed levels after excavation, (2) humidity variations representing ventilation during operation tunnels as well water migration far‐field (3) heating ambient temperature...
Biogas residues (BR) containing cellulose and lignin are produced with the rapid development of biogas engineering. BR can be used to prepare filtrate reducer water-based drilling fluid in oilfields by chemi-cal modification. from anaerobically fermenting grain stillage was alkalized etherified caustic soda chloroacetic acid reducer, which named as FBR. The long-chain crystalline polysaccharides were selected dispersing agents (DA), water-soluble silicate cross-linking agent. After hot...
Speech-to-text (S2T) generation systems frequently face challenges in low-resource scenarios, primarily due to the lack of extensive labeled datasets. One emerging solution is constructing virtual training samples by interpolating inputs and labels, which has notably enhanced system generalization other domains. Despite its potential, this technique's application S2T tasks remained under-explored. In paper, we delve into utility interpolation augmentation, guided several pivotal questions....