Results 91 to 100 of about 476,835 (309)

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Testing of JTD Engine Fueled with Hemp and Rapeseed Oil Esters

Energies
Alternative fuels to fossil fuels have been a focus of research since the 1980s, due to the oil crisis. Biofuels for diesel engines are obtained from various types of fats, primarily vegetable oils.
Adam Koniuszy, Małgorzata Hawrot-Paw, Wojciech Golimowski, Tomasz Osipowicz, Konrad Prajwowski, Filip Szwajca, Damian Marcinkowski, Wojciech Andrew Berger   +7 more
doaj   +1 more source

Additively Manufactured Porous Ceramics as Tunable Dielectrics for Passive Temperature Sensing

Advanced Materials Technologies, EarlyView.
Porous ceramic lattices, 3D‐printed from a multicomponent oxide ink, are integrated with LC resonators for passive wireless temperature sensing. By tuning porosity, the dielectric properties and RF response are engineered to produce distinct resonant frequency shifts with temperature. The results establish a structure‐driven approach to customizing the
Sogol Heidarishahrivar, Aminul Islam, Chang Woo Gal, Insup Kim, Yeong‐Jin Choi, Woo Soo Kim   +5 more
wiley   +1 more source

The Co-Processing Combustion Characteristics of Municipal Sludge within an Industrial Cement Decomposition Furnace via Computational Fluid Dynamics

Mathematics
Dealing with municipal sludge in an effective way is crucial for urban development and environmental protection. Co-processing the sludge by burning it in a decomposition furnace in the cement production line has been found to be a viable solution.
Ling Zhu, Ya Mao, Kang Liu, Chengguang Tong, Quan Liu, Qiang Xie   +5 more
doaj   +1 more source

The N.A.C.A. Combustion Chamber Gas-sampling Valve and Some Preliminary Test Results [PDF]

A gas sampling valve of the inertia-operated type was designed for procuring samples of the gases in the combustion chamber of internal combustion engines at identical points in successive cycles so that the analysis of the gas samples thus procured may ...
Buckley, E C, Spanogle, J A
core   +1 more source

Record Performance in Vertically Stacked, Solution‐Processed ZTO Schottky Diodes

Advanced Materials Technologies, EarlyView.
Schottky diodes based on solution processed sustainable zinc—tin–oxide thin films present an eco‐friendly and versatile alternative to conventional CMOS based technologies. Beyond state‐of‐the‐art performance for vertically stacked solution‐based oxide diodes was achieved, including rectification ratios exceeding nine orders of magnitude, and intrinsic
Carlos Silva, Asal Kiazadeh, Raquel Azevedo Martins, António Dias, Jorge Martins, Luís Mendes, João Vaz, Rodrigo Martins, Elvira Fortunato, Emanuel Carlos, Jonas Deuermeier   +10 more
wiley   +1 more source

Numerical Analysis of Preheating Furnace Performance in Razi Petrochemical's Ammonia Processing Unit Considering the Effects of Hydraulic and Geometric Variables [PDF]

Journal of Applied and Computational Mechanics
This study investigates the combustion of natural gas within a three-dimensional preheating ammonia furnace at the Razi Petrochemical Company (RPC) in Mahshahr, Iran. The furnace geometry is modeled assuming non-premixed fuel and air.
Alireza Daneh-Dezfuli, Shiva Khamisi, Seyed Saied Bahrainian   +2 more
doaj   +1 more source

High‐Power Rapid Laser‐Induced Synthesis of Multi‐functional Cobalt Metal‐Organic Framework With an Unprecedented Synthesis Efficiency

Advanced Materials Technologies, EarlyView.
Laser‐assisted synthesis enables rapid (within 1 h) and high‐yield (≥90%) production of Co‐MOFs with mesoporous structures, tunable magnetic and optical properties, and efficient adsorption of N2, CH4, and CO2 for low‐energy gas separation. DFT calculations elucidate the electronic structure and adsorption behavior.
Saliha Mutlu, Bülend Ortaç, Ali Karatutlu, Taylan Gorkan, Engin Durgun, Dilek Soyler, Saniye Soylemez, Jelena Lillepäg, Volkan Filiz, Nergis Arsu, Sevil Savaskan Yilmaz   +10 more
wiley   +1 more source

The solid surface combustion space shuttle experiment hardware description and ground-based test results [PDF]

The Lewis Research Center is developing a series of microgravity combustion experiments for the Space Shuttle. The Solid Surface Combustion Experiment (SSCE) is the first to be completed. SSCE will study flame spreading over thermally thin fuels (ashless
Altenkirch, R. A., Sacksteder, K. R., Vento, D. M., Zavesky, R. J.   +3 more
core   +1 more source

Three‐Dimensional Printed Microarchitected Hierarchically Porous Biodegradable PLA/S/CNT Nanocomposite Electrodes for High‐Performance Lithium–Sulfur Batteries

Advanced Materials Technologies, EarlyView.
Hierarchically microarchitected PLA/S/CNT cathodes are fabricated via scalable fused filament 3D printing as high‐sulfur‐loading hosts for rechargeable lithium–sulfur batteries. The assembled Li–S cells with sulfur loadings up to 17 mg cm−2 deliver an areal capacity of 9.2 mAh cm−2 and retain 96% of their discharge capacity after 100 charge–discharge ...
Vinay Gupta, Pawan Verma, Fahad Alam, Krishnaiahnahundi Manjunathaswamy Mohan, Shanumgam Kumar   +4 more
wiley   +1 more source