Results 71 to 80 of about 723,239 (309)

Helium ionization detection apparatus [PDF]

In a gas chromatograph apparatus comprising a gas supply (He carrier gas), a sample injection apparatus, a chromatograph column, a He ion detector, and connecting tubes, a foreign gas (other than He) injection apparatus is installed between the sample ...
Nagai, R.
core   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Gravity drainage during gas injection

Petroleum Geoscience, 1995
The drainage of oil under gravitational forces has been an important mechanism in the production of many oil fields. In order to extend the economic implementation of gas injection into more marginal fields, a reduction in the uncertainties associated with gravity drainage is required.
P. Naylor, N. C. Sargent, A. J. Crosbie, A. P. Tilsed, S. G. Goodyear   +4 more
openaire   +2 more sources

A Surface‐engineered Microfluidic Device for Antibody‐Mediated Negative Selection of High‐Quality Sperm for Assisted Reproduction

Advanced Functional Materials, EarlyView.
This study reports a microfluidic device with a functionalized surface utilizing a polyoxazoline coating and covalently immobilized gold nanoparticles and anti‐phosphatidylserine antibody. The device efficiently eliminates pre‐apoptotic and apoptotic spermatozoa and yields sperm with substantially improved quality and low DNA damage, offering a simple ...
Soraya Rasi Ghaemi, David J. Sharkey, Nicole O. McPherson, Markos Negash Alemie, Krasimir Vasilev, Sarah A. Robertson   +5 more
wiley   +1 more source

Feedback from galactic stellar bulges and hot gaseous haloes of galaxies [PDF]

, 2008
We demonstrate that the feedback from stellar bulges can play an essential role in shaping the halo gas of galaxies with substantial bulge components by conducting 1-D hydrodynamical simulations.
Birnboim, Blumenthal, Bond, Brighenti, Bryan, Bullock, Cappellaro, Choi, Ciotti, Cox, Croton, David, David, Davé, Fryxell, Fujita, Fukugita, Gnedin, Greggio, H. J. Mo, Hernquist, Hoeft, Jing, Kaufmann, Kereš, Kroupa, Li, Li, Li, Loewenstein, Lu, Lu, Mac Low, Maller, Mannucci, Maraston, Maraston, Mathews, McGaugh, Miller, Mo, Mo, Mo, Mo, Moore, Navarro, O'Sullivan, O'Sullivan, Pellegrini, Poole, Press, Q. Daniel Wang, Quinn, Revnivtsev, Revnivtsev, Schaerer, Sembach, Shankar, Sheth, Shikui Tang, Shirey, Silk, Sommer-Larsen, Strickland, Sutherland, Takahashi, Tang, Toft, Voit, Wechsler, White, White, White, Wyithe, Yu Lu, Zhao, Zhao   +76 more
core   +3 more sources

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source

Study on the Stabilization Mechanism of Gas Injection Interface in Fractured-Vuggy Reservoirs

Energies
Due to the fracture caverns in fractured-vuggy reservoirs, channeling frequently occurs during water injection or gas injection. The stability of the oil–water/oil–gas interface during water injection or gas injection in fractured-vuggy reservoirs ...
Yi Pan, Xinyu Liu, Zhicheng Yang, Yang Sun, Chong Chen, Lei Sun   +5 more
doaj   +1 more source

Atomic‐Scale Light Coupling Control in Ultrathin Photonic Membranes

Advanced Functional Materials, EarlyView.
Ultrathin photonic nanomembranes provide atomic‐scale control over the coupling between incident light and high‐Q photonic modes, enabling angstrom‐level resonance tuning and strong field confinement. When integrated with TMD monolayers, they further yield enhanced light–matter interactions, offering a versatile platform for advancing quantum photonics,
Chih‐Zong Deng, Chun‐Hao Chiang, Sunhao Shi, Jui‐Han Fu, Yen‐Ju Wu, Kuniaki Konishi, Vincent Tung, Chun‐Wei Chen, Ya‐Lun Ho   +8 more
wiley   +1 more source

Datta-Das transistor: Significance of channel direction, size-dependence of source contacts, and boundary effects

, 2006
We analyze the spin expectation values for injected spin-polarized electrons (spin vectors) in a [001]-grown Rashba-Dresselhaus two-dimensional electron gas (2DEG).
B. Jusserand, Ching-Ray Chang, E. I. Rashba, J. J. Sakurai, Ming-Hao Liu, R. Winkler, Yu. A. Bychkov   +6 more
core   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source