Results 91 to 100 of about 1,130,240 (351)

https://rie.cujae.edu.cu/index.php/RIE/article/view/545/602

Revista Científica de Ingeniería Energética, 2018
Los procesos de transferencia de energía térmica son problemas importantes a resolver en el campo de la ingeniería. En este ámbito, los intercambiadores de calor son uno de los equipos más usados en la industria.
Andres Adrian Sánchez Escalona, Ever Góngora Leyva   +1 more
doaj  

Design of Multiphase Compositionally Complex Alloys for Enhanced Hardness at Elevated Temperatures and Machinability: Comparative Study with Inconel 718

Advanced Engineering Materials, EarlyView.
This study compares the mechanical properties of Inconel 718 with two newly developed compositionally complex alloys (CCAs). Inco‐like‐H alloy demonstrates significantly improved wear resistance, surface finish, and hardness, notably at high temperatures. This CCA requires no heat treatment and is well suited for additive manufacturing. Its performance
Laurent Peltier, Gaël Le Coz, Fodil Meraghni, Jérome Slowensky   +3 more
wiley   +1 more source

Efficient and Scalable Radiative Cooling for Photovoltaics Using Solution‐Processable and Solar‐Transparent Mesoporous Nanoparticles

Advanced Functional Materials, EarlyView.
Graded refractive index (GRI) structures are prepared from the layer‐by‐layer spray coating of the mesoporous SiO2 nanoparticles, showing high solar transparency and thermal emissivity. Under outdoor conditions, after 50 days, the GRI‐coated photovoltaics show on average 6.65 ± 1.48 °C lower than that of the non‐coated references, maintaining 80.9 ± 8 ...
Heesuk Jung, Sung Yoon Min, Byungsoo Kang, Yongseok Yoo, Jihun Jang, Yeoun‐Woo Jang, Hyojeong Choi, Hyeong Won Lee, Swarup Biswas, Yongju Lee, Mansoo Choi, Phillip Lee, Min Seok Jang, Hyeok Kim, Shu Yang   +14 more
wiley   +1 more source

The Effects of Additives on the Physical Properties of Electroformed Nickel and on the Stretch of Photoelectroformed Nickel Components

, 2006
The process of nickel electroforming is becoming increasingly important in the manufacture of MST products, as it has the potential to replicate complex geometries with extremely high fidelity.
Allen, D., Dhum, Ch., Duclos, N., Garbutt, I., Hoffmann, J. E., Saumer, M., Schmitt, M.   +6 more
core  

Several new catalysts for reduction of oxygen in fuel cells [PDF]

, 1970
Test results prove nickel carbide or nitride, nickel-cobalt carbide, titanium carbide or nitride, and intermetallic compounds of the transition or noble metals to be efficient electrocatalysts for oxygen reduction in alkaline electrolytes in low ...
Cattabriga, R. A., Cohn, E. M., Giner, J. D., Makrides, A. C., Swette, L. L.   +4 more
core   +1 more source

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

BOOK REVIEW: Wachmann E., Melber A. & Deckert J.: Cimicomorpha: Microphysidae (Flechtenwanzen), Miridae (Weichwanzen). Neubearbeitung der Wanzen Deutschlands, Österreichs und der deutschsprachigen Schweiz. Die Tierwelt Dutschlands. Wanzen. Band 2 [in German].

European Journal of Entomology, 2005
Goecke & Evers, Keltern, 2004, 288 pp., 266 colour photographs.
H. NICKEL
doaj   +1 more source

Progress in the development of lightweight nickel electrode [PDF]

The use of the lightweight nickel electrode, in place of the heavy-sintered state-of-the-art nickel electrode, will lead to improvements in specific energy and performance of the nickel-hydrogen cell. Preliminary testing indicates that a nickel fiber mat
Britton, Doris L.
core   +1 more source

Stable and Dendrite‐Free Zinc Metal Anodes Via Interface Nanoarchitectonics for Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
This review explores Zn anode challenges in aqueous ZIBs, including dendrites, corrosion, and side reactions, and discusses strategies for improvement through Zn anode, electrolyte, and separator modifications to enhance stability and efficiency. Abstract Aqueous rechargeable zinc‐ion batteries (ZIBs) are emerging as promising candidates for next ...
Pragati A. Shinde, Nilesh R. Chodankar, Lok Kumar Shrestha, Amal Al Ghaferi, Ebrahim Alhajri, Katsuhiko Ariga   +5 more
wiley   +1 more source

Caracterización de fases por procesamiento digital de imágenes en un aluminio soldado con gas y tungsteno

Ciencia & Futuro
Se realizó la caracterización de fases por procesamiento digital de imágenes en una aleación de aluminio del tipo AA 6061 obtenida mediante proceso de soldadura de gas y tungsteno (GTAW). Se realizó una junta a tope sin preparación de bordes, en planchas
Erlán De la Rosa Barthelemy, Adriana González Pérez, Rodney E. Correa Suárez   +2 more
doaj