Results 61 to 70 of about 489,293 (298)

Adjustment of Coatings Morphology and Particle Distribution of Layered Silicates by Freeze‐Drying for Improved Gas Barriers

open access: yesAdvanced Engineering Materials, EarlyView.
Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes   +4 more
wiley   +1 more source

A Dynamic Reserve Evaluation Method for an Ultra-Deep Fractured Tight Sandstone Gas Reservoir

open access: yesEnergies
Dynamic reserves evaluation is crucial for the development and assessment of gas reservoirs. However, ultra-deep fractured tight sandstone gas reservoirs pose unique challenges due to their abnormally high pressure, tight matrix, and complex fracture ...
Xinxing He   +4 more
doaj   +1 more source

Gas-dynamic Analyzer of Nitrogen-hydrogen Mixture for Industrial Application

open access: yesEnergy Engineering and Control Systems, 2015
Mathematical model of gas-dynamic analyzer of nitrogen-hydrogen mixture built on bridge throttle scheme using laminar-turbulent and turbulent-laminar throttle dividers is developed in the paper.
Halyna Matiko, Yevhen Pistun
doaj   +1 more source

Dynamic structure factor of ultracold Bose and Fermi gases in optical lattices [PDF]

open access: yes, 2004
We investigate the dynamic structure factor of atomic Bose and Fermi gases in one-dimensional optical lattices at zero temperature. The focus is on the generic behaviour of S(k,omega) as function of filling and interaction strength with the aim of ...
Burnett, K., Roth, R.
core   +2 more sources

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai   +2 more
wiley   +1 more source

Dynamic Reserve New Calculation Model for Fracture-Vuggy Reservoirs Considering the Effect of Dissolved Gas Precipitation

open access: yesCejing jishu
The internal spatial structure of fractured-karst reservoirs is complex, and the fluid distribution forms are diverse. The existence of water bodies and dissolved gases in the fracture-karst reservoir collective has a significant impact on dynamic ...
WANG Hongpeng   +5 more
doaj   +1 more source

A dynamic evaluation technique for assessing gas output from coal seams during commingling production within a coalbed methane well: a case study from the Qinshui Basin

open access: yesInternational Journal of Coal Science & Technology, 2020
Gas drainage is carried out based on output from each coal bed throughout commingling production of coalbed methane (CBM). A reasonable drainage process should therefore initially guarantee main coal bed production and then enhance gas output from other ...
Chuan Wu   +4 more
doaj   +1 more source

The gas dynamics of H II regions. II - Two-dimensional axisymmetric calculations

open access: yesThe Astrophysical Journal, 1979
The evolution of H II regions is calculated with a two-dimensional hydrodynamic numerical procedure under the assumption that the exciting star is born within a cool molecular cloud whose density is about 10/sup 3/ particles cm/sup -3/. As the ionization of the cloud's edge is completed, a large pressure gradient is set up and ionized cloud material ...
P. Bodenheimer   +2 more
openaire   +1 more source

Чисельний розрахунок потоку в решітці аеродинамічних профілів з газодинамічним управлінням обтіканням [PDF]

open access: yes, 2011
Представлено результати чисельного розрахунку параметрів потоку в компресорній решітці з газодинамічним управлінням обтіканням та проведено порівняльний аналіз отриманих результатів з результатами експериментальних досліджень.The results of numerical ...
Дорошенко, К. В.   +1 more
core  

Spontaneous imbibition in a slit pore: a lattice-gas dynamic mean field study [PDF]

open access: yes, 2010
We present a theoretical study of spontaneous imbibition in a slit pore using a lattice-gas model and a dynamic mean-field theory. Emphasis is put on the influence of the precursor films on the speed of the imbibition front due to liquid mass ...
E. Kierlik   +4 more
core   +4 more sources

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