Results 121 to 130 of about 11,408 (310)

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source

A Parametric Numerical Study of Mixing in a Cylindrical Duct [PDF]

The interaction is described of some of the important parameters affecting the mixing process in a quick mixing region of a rich burn/quick mix/lean burn (RQL) combustor.
Holdeman, J. D., Mongia, H. C., Oechsle, V. L.   +2 more
core   +1 more source

PEMILIHANKOMPRESOR DENGAN KAPASITAS 15 MMSCFD, TEKANAN SUCTION 175 PSIG DAN TEKANAN DISCHARGE 425 PSIG DI NFG SPU-A FIELDJATIBARANG PT PERTAMINA EP ASSET 3 [PDF]

, 2016
PT Pertamina EP field jatibarang merupakan salah satu lapangan eksplorasi produksi minyak dan gas di Indonesia yang banyak menggunakan metode gaslift untuk mengangkat minyak ke permukaan yang memanfaatkan kompresor untuk mendapatkan gas bertekanan ...
Agus Sentana, DS, ARIYADI LENGGAR SATRIYO, Alumni, Syahbardia, Ds   +2 more
core  

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

Experimental investigation into transient operating strategies of a turbocharged lean-burn hydrogen ICE and comparison to diesel performance

Automotive and Engine Technology
Hydrogen fuelled internal combustion engines (H2-ICEs) are a promising zero-carbon propulsion solution. Although their steady-state performance has been investigated widely, sufficient transient performance is still challenging, especially for lean-burn,
Paul Christoforetti, Peter Kappacher, Eberhard Schutting, Helmut Eichlseder   +3 more
doaj   +1 more source

Catalytic converters or lean-burn? [PDF]

Nature, 1985
openaire   +1 more source

Propulsion technology challenges for turn-of-the-century commercial aircraft [PDF]

This paper highlights the efforts being performed or sponsored by NASA, in cooperation with the U.S. civil aviation industry, to address the propulsion system technological challenges that must be met in order to ensure a viable future for the industry ...
Ball, Calvin L., Ziemianski, Joseph A.
core   +1 more source

Biotechnology in food properties and processing : series 1 [PDF]

, 2017
The food biotechnology industry is continually adopting new and improved technologies for increasing processing efficiency, improving existing products, producing new products and reducing environmental effects.

core  

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

Advanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler, Jean‐Paul P.M. de Vries, Sarthak Misra, Venkatasubramanian Kalpathy Venkiteswaran   +3 more
wiley   +1 more source

Combustor technology for future aircraft [PDF]

The continuing improvement of aircraft gas turbine engine operating efficiencies involves increases in overall engine pressure ratio increases that will result in combustor inlet pressure and temperature increases, greater combustion temperature rises ...
Tacina, Robert R.
core   +1 more source