Results 101 to 110 of about 55,418 (298)

Inertial dynamics of air bubbles crossing a horizontal fluid–fluid interface [PDF]

, 2012
The dynamics of isolated air bubbles crossing the horizontal interface separating two Newtonian immiscible liquids initially at rest are studied both experimentally and computationally.
Duval, Fabien, Piar, Bruno, Magnaudet, Jacques, Bonhomme, Romain   +3 more
core   +1 more source

Positive and negative pressure distributions and gas migration mechanisms under gas drainage from coal seams using ultra-long directional boreholes

Meitian dizhi yu kantan
BackgroundGas drainage via ultra-long directional boreholes plays a significant role in gas control in coal mines. To ensure safe and efficient gas drainage using these boreholes, it is critical to determine the mechanisms behind positive- negative ...
Quanxin LI, Yuechen ZHAO, Quanbin MOU, Liang WANG, Jun FANG, Chenghao WANG   +5 more
doaj   +1 more source

Barrier‐Assisted Plasma Doping for Spatially Selective Resistance Engineering in MoS2 Transistors

Advanced Materials, EarlyView.
Barrier‐assisted NH3 plasma doping enables damage‐free, spatially selective carrier modulation in monolayer MoS2 transistors. An ultrathin pV3D3/Al2O3 protective‐dielectric stack acts as a chemical filter that allows NHx radicals to reach the MoS2 surface while blocking plasma damage. This process achieves a high electron concentration of 4.3 × 1013 cm−
Inseong Lee, Joonho Park, Seungsun Yoo, Seunghyun Yu, Mingu Kang, Seohak Park, Min Kyu Lee, Hyeongjin Lim, Dongyoung Kim, Kunwoo Roh, Sejin Kim, Kihyuk Kim, Wonbae Ahn, Kibum Kang, Yong‐Hoon Kim, Sung‐Yool Choi   +15 more
wiley   +1 more source

Greenhouse gas emissions from integrated urban drainage systems: where do we stand? [PDF]

, 2017
Integrated urban drainage systems (IUDS) (i.e., sewer systems, wastewater treatment plants and receiving water bodies) contribute to climate change being sources of greenhouse gas emissions (GHG).
Deletic, A., Patrick Willems, Luca Vezzaro, Manfred Kleidorfer, Fu, G., Yuan, Z., Ana Deletic, Willems, P., Rauch, W., Mannina Giorgio, David Butler, Butler, D., Fowder, H., Kleidorfer, M., McCarthy, D., Vezzaro, Luca, Guangtao Fu, David McCarthy, Zhiguo Yuan, Mikkelsen, Peter Steen, Lorenzo Benedetti, Harsha Fowdar, Peter Steen Mikkelsen, Wolfgang Rauch, Mannina, Giorgio   +24 more
core  

Energy Band Alignment and Electro‐Optical Behavior of Nearly Unstrained Monolayer MoS2 Heterostructures With GaN

Advanced Materials Interfaces, EarlyView.
Large size (∼100 µm) monolayer MoS2 grown by LPI‐CVD on n‐GaN exhibit a high n‐type doping, very low strain, and a type‐I band alignment at MoS2/GaN interface. Photocurrent measurements under illumination with photon energies from ∼2 to ∼5 eV show superior electro‐optical performances of these MoS2/n‐GaN heterojunctions as compared to Ni/n‐GaN devices ...
Salvatore Ethan Panasci, Emanuela Schilirò, Giuseppe Greco, Patrick Fiorenza, Fabrizio Roccaforte, Fiorenza Esposito, Igor Píš, Federica Bondino, Antonino Madonia, Marco Cannas, Simonpietro Agnello, Luca Seravalli, Filippo Giannazzo   +12 more
wiley   +1 more source

High Quality MoS2 Layered Thin Films Obtained by Ionized Jet Deposition Investigated by X‐ray Absorption Spectroscopy at S L2,3 and Mo M2,3 Edges

Advanced Materials Interfaces, EarlyView.
Soft x‐ray absorption spectroscopy at the S L2,3 and Mo M2,3 edges reveals synthesis‐dependent electronic and structural order in MoS2. Bulk, exfoliated, and CVD samples show well‐resolved 2D features, while as‐deposited IJD films appear amorphous but crystallize into ordered 2H‐MoS2 upon moderate annealing, confirming IJD as a viable low‐temperature ...
Giulia Giovanelli, Alessandro Lodi, Angelo Giglia, Nicola Mahne, Rahul Kesarwani, Jana Vejpravova, Steffen Rühl, Giovanni Ligorio, Emil J. W. List‐Kratochvil, Lucia Nasi, Melanie Timpel, Marco V. Nardi, Luca Pasquali   +12 more
wiley   +1 more source

Gas Drainage Practices and Challenges in Coal Mines of China [PDF]

, 2008
A number of gas drainage techniques are developed and practiced in many coal mines of China mainly to minimize outburst risk and reduce gas emission. Dependent upon local geological and mining conditions, one or more techniques may be practiced in a coal
K Wang (7724678), S Xue (9877931)
core  

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

Journal 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, Pengbo Huo, Zhengyan Zhao, Jinlong Fan, Zhenyu Zhang   +4 more
doaj   +1 more source

Numerical simulation of hydraulic fracturing in coal seam for enhancing underground gas drainage

Energy Exploration & Exploitation, 2019
Hydraulic fracturing is an efficiency approach to improve underground gas drainage. Although the interaction of fluid and coal has been comprehensively investigated in fracturing process and gas drainage process, fewer scholars have combined these two ...
Chaojun Fan, Sheng Li, Mingkun Luo, Zhenhua Yang, Tianwei Lan   +4 more
doaj   +1 more source

Conjugated Metal‐Organic Frameworks on Laser‐Induced‐Graphene Scaffold Enable Picomolar Sensitivity in Electrical Biosensors

Advanced Materials Interfaces, EarlyView.
A controlled layer‐by‐layer growth process integrates conjugated metal‐organic framework thin films onto a hierarchical 3D laser‐induced graphene scaffold. When incorporated into an extended‐gate field‐effect transistor configuration, this synergistic hybrid platform achieves robust aptamer immobilization, driving highly selective, picomolar‐level ...
Khanh T. M. Le, Tuan‐Khoa Nguyen, Nam‐Trung Nguyen   +2 more
wiley   +1 more source