Results 31 to 40 of about 359,262 (278)

Bulk and Surface Dual‐Modification for Stabilizing RuO2 Anode in 2 A cm−2 PEMWE Operation

open access: yesAdvanced Materials, EarlyView.
The high‐current‐density stability of the RuO2‐based anode in PEMWE could be taken care of by a bulk and surface dual modification strategy developed in this work, where Cr doping modulates the Ru valence state in the bulk phase, suppressing Ru overoxidation, whereas Si modification stabilizes the reaction interface by inhibiting catalyst ...
Jiayi Tang   +5 more
wiley   +1 more source

Energy Release Mechanism of Underwater Implosion With Different Structural Bodies

open access: yesGeofluids
Underwater implosion is typically accompanied by intense shock wave energy. The investigation of its energy release mechanism is crucial for structural safety protection, marine environmental monitoring, ocean acoustic field analysis, and energy ...
Yuhao Zhang   +5 more
doaj   +1 more source

Evolutionary pattern and a calculation method of in situ gas pressure based on pressure-retaining coal cores

open access: yesMeitian dizhi yu kantan
Objective and MethodsThe in situ gas pressure of coal seams represents a crucial parameter for the safe production of coal mines and the assessment of coalbed methane (CBM) resources.
Mingzhong GAO   +8 more
doaj   +1 more source

Arguments for a "U.S. Kamioka": SNOLab and its Implications for North American Underground Science Planning [PDF]

open access: yes, 2006
We argue for a cost-effective, long-term North American underground science strategy based on partnership with Canada and initial construction of a modest U.S. Stage I laboratory designed to complement SNOLab.
Aalseth   +22 more
core   +1 more source

Asymmetry in Skipping Enhances Viability Against Control Input Noise

open access: yesAdvanced Robotics Research, EarlyView.
Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley   +1 more source

Geopolymeric subaqueous lightweight fill material derived by waste spoil in construction: Mechanical and microstructural analysis

open access: yesCase Studies in Construction Materials
This study presents a geopolymer-based Subaqueous Foamed Lightweight Soil (SFLS), innovatively facilitating the application of Foamed Lightweight Soil (FLS) for subaqueous backfilling and enabling waste spoil (WS) recycling on a large scale. Key findings
Xiaohui Sun   +6 more
doaj   +1 more source

EXPERIMENTAL AND NUMERICAL RESEARCH OF JOINTED ROCK MASS ANISOTROPY IN A THREE-DIMENSIONAL STRESS FIELD

open access: yesRudarsko-geološko-naftni Zbornik, 2022
Joints often have a significant influence on material characteristics. The discontinuities’ coalescence mechanism and complex jointed rock mass structure as a composite need to be further explored.
Pavel Verbilo   +3 more
doaj  

Behavior of noncircular tunnels excavated in stratified rock masses – Case of underground coal mines

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
The amount of tunnels excavated along stratified/sedimentary rock masses in Quangninh coal mine area, Vietnam, is gradually increasing. Rock mass in Quangninh is characterized by beddings between rock layers.
Ngoc Anh Do   +6 more
doaj   +1 more source

Triaxial tests on frozen ground: formulation and modelling [PDF]

open access: yes, 2013
Artificial Ground Freezing (AGF) is a controllable process that can be used by engineers to stabilise temporarily the ground, provide structural support and/or exclude groundwater from an excavation until construction of the final lining provides ...
Casini, Francesca   +3 more
core  

Engineering Osteoimmune Responses with Functionalized Orthopedic Implants for Post‐Operative Osteosarcoma Treatment

open access: yesAdvanced Science, EarlyView.
Osteosarcoma is the most common primary bone tumor with limited treatment options and a terrible prognosis. This review provides a comprehensive summary of the recent development of osteoimmunomodulatory implants for post‐operative osteosarcoma treatment, of which the potential utility in evoking durable anti‐osteosarcoma immunity and accelerating bone
Yilong Dong   +6 more
wiley   +1 more source

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