Results 81 to 90 of about 51,330 (256)

Strategy for resuming production of tight gas reservoirs in Qingshimao: jet pump-rod pump integrated drainage gas recovery process

open access: yesJournal of Petroleum Exploration and Production Technology
In the development of the tight gas reservoir in Qingshimao, the depth of gas well and high production of water often lead to difficulty in discharging the accumulated liquid bottomhole and a short stable production period after drainage gas recovery ...
Wanzhong Li   +4 more
doaj   +1 more source

O Radical‐Induced n‐to‐p Transition in PbS Quantum Dots Enabling Enhanced and Stable Photogating in QD/IGZO SWIR Phototransistors

open access: yesAdvanced Materials Technologies, EarlyView.
An O radical‐induced n‐to‐p transition in PbS quantum dots (QDs) is achieved via atmospheric Ar/O2 treatment, enabling favorable band alignment and stable photogating in PbS QD/IGZO phototransistors. Interfacial defect passivation and Fermi‐level modulation, confirmed by XPS and UPS analyses, effectively suppress dark current, induce a positive VTH ...
MD Redowan Mahmud Arnob   +4 more
wiley   +1 more source

Surrogate‐Optimized Flow‐Guided Miniature Condenser for Rapid Exhaled Glucose Detection

open access: yesAdvanced Materials Technologies, EarlyView.
A surrogate‐optimized miniature condenser guides humid exhaled flow toward cold surfaces to accelerate exhaled breath condensate collection. By improving vapor access within a compact footprint, the design increases sample yield. This enables post‐collection enrichment and rapid colorimetric glucose detection from dilute exhaled biomarkers within a 5 ...
Yiming Thomas Lu   +6 more
wiley   +1 more source

Amorphous IGZO, Crystalline IGO, Amorphous IGZO Triple Active Layer With 2D Electron Gas at Both Interfaces for High Performance TFTs

open access: yesAdvanced Materials Technologies, EarlyView.
The dual‐gate coplanar a‐IGZO/C‐IGO/a‐IGZO TFT is investigated, exhibiting a high filed‐effect mobility of 53.81 cm2 V−1s−1 with excellent stability. The amorphous IGZO layer provides smooth surface, which carrier scattering and high‐quality interface between gate insulator and active layer.
Solbee Lee   +4 more
wiley   +1 more source

Study on the effective drainage range of long horizontal borehole for goaf gas drainage

open access: yesEnergy Science & Engineering
AbstractLaying long horizontal borehole (LHB) in mining‐induced strata fractures for coal‐bed gas drainage in the goaf is a pivotal method for eliminating safety hazards, preventing atmospheric pollution, and realizing gas utilization. A crucial premise of this method is to determine the effective drainage range of the borehole, a key parameter ...
Mingjie Guo   +4 more
openaire   +2 more sources

Laser‐Induced Local De‐Doping in Organic Semiconductors

open access: yesAdvanced Materials Technologies, EarlyView.
The polymer PBTTT‐C14 doped with the small molecule acceptor F4TCNQ is considered as a benchmark material system. Mask‐free, microscale patterning of the doping level via laser‐induced heating and sublimation of dopant molecules is shown. Controlling laser irradiance and swath spacing allows dopant level control with laser‐limited resolution, opening ...
Christian Rainer   +5 more
wiley   +1 more source

Optimization and application of process parameters for ultra-high pressure hydraulic slotting in cross-measure boreholes

open access: yesMeikuang Anquan
Aiming at the problems of poor permeability, high gas content and inefficient gas drainage from in-seam boreholes in the No.3 coal seam of Zhaozhuang Coal Mine, ultra-high pressure hydraulic slotting combined with cross-measure boreholes was proposed to ...
Xinglin QIN   +4 more
doaj   +1 more source

Biodegradable and Edible Milli‐Fluidic Logic Circuits

open access: yesAdvanced Materials Technologies, EarlyView.
Fully biodegradable and edible fluidic circuits are developed using gelatin‐based valves that operate at low pressure. Logic gates, a one‐bit memory, and a ring oscillator are demonstrated, showing that biodegradable materials can perform computation and control.
Shuhang Zhang   +3 more
wiley   +1 more source

Analysis of typical cases and development trends of coalbed methane (coal mine gas) drainage techniques in coal mining areas

open access: yesMeitian dizhi yu kantan
Background In the coal mining areas of China, coalbed methane (coal mine gas) occurs under complex conditions, rendering it difficult to achieve its efficient resource exploitation and effective hazard control using a single technique.AdvancesAs ...
Shijun HAO   +5 more
doaj   +1 more source

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