Results 81 to 90 of about 3,513,001 (329)

Development and Application of Capsule-like Packer for Concentric Tubing

Shiyou jixie, 2017
The concentric tubing sand washing can effectively address the sand washing problems in low-pressure coefficient, easy pollution and easy lost reservoirs. The self-sealing packer is the key component for the concentric tubing sand washing operation.
Kan Changbin, Yang Jin, Yan Li, Yu Xiaocong, Fu Chao, Zhao Yihui   +5 more
doaj  

Exploring Dipolar Dynamics and Ionic Transport in Metal‐Organic Frameworks: Experimental and Theoretical Insights

Advanced Functional Materials, EarlyView.
In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund, Arthur Schulz, Peter Lunkenheimer, Maryana Kraft, Thomas Bergler, Harald Oberhofer, Dirk Volkmer   +6 more
wiley   +1 more source

Evaluation of the performance of self-healing concrete at small and large scale under laboratory conditions [PDF]

, 2017
HEALCON is an EU-FP7 project which aims to develop self-healing concrete to create durable and sustainable concrete structures. While during the first years of the project the self-healing materials (including the healing agents and suitable ...
Branco, Vanda, De Belie, Nele, Debbaut, Brenda, Erndahl Sorensen, Henrik, Grosse, Christian, Gruyaert, Elke, Kaasgaard, Martin, Krüger, Markus, Malm, Fabian, Pelto, Jani, Price, Eric   +10 more
core  

Seismic strengthening of beam-column joints with multidirectional CFRP laminates [PDF]

, 2012
An experimental program was carried out to analyse the potentialities of a technique based on the use of multidirectional CFRP laminates (MDL-CFRP) for the seismic repair and strengthening of reinforced concrete (RC) beam-column joints. This experimental
Barros, J., Coelho, M., Costa, A., Fernandes, P., Melo, J., Sena-Cruz, J., Varum, H.   +6 more
core   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Integrated prevention and control technology of unloading pressure from boreholes and high-efficiency extraction for compound power disasters

Meitan kexue jishu
Addressing the technical challenges posed by the compound disaster of intense mining pressure and high gas concentration, this study developed a novel viscous sealing material based on cellulose ether. Experimental analyses were conducted to evaluate the
Xingrun ZHANG, Bojie PAN, Yongbin ZHANG, Fuchang HAO, Baobin GAO, Zhiqi XI   +5 more
doaj   +1 more source

A miniaturized bioreactor system for the evaluation of cell interaction with designed substrates in perfusion culture [PDF]

, 2012
In tissue engineering, the chemical and topographical cues within three-dimensional (3D) scaffolds are normally tested using static cell cultures but applied directly to tissue cultures in perfusion bioreactors.
Anderson, Britland, Casey, Chen, Clark, Csaderova, Curtis, Curtis, Flemming, Gadegaard, Gadegaard, Gailit, Hubbell, Jelinek, Korin, Lakatos, Link, Lu, Massia, Mirastschijski, Mosmann, Noble, Robert, Salem, Seunarine, Stevens, Sun, Sun, Sørensen, Terai, Wojciak-Stothard, Zong   +31 more
core   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Hermetic edge sealing of photovoltaic modules [PDF]

The feasibility of using an electrostatic bonding (ESB) and ultrasonic welding process to produce hermetic edge seals on terrestrial solar cell modules was investigated.
Nowlan, M. J.
core   +1 more source

Underwater space suit pressure control regulator [PDF]

, 1973
A device is reported for regulating the pneumatic pressure in a ventilated space suit relative to the pressure imposed on the suit when being worn by a person underwater to simulate space environment for testing and experimentation. A box unit located on
Aldrich, B. R., Cooper, C. R., Rasquin, J. R.   +2 more
core   +1 more source