Results 81 to 90 of about 6,942,124 (246)

Engine Design Study for Free Double Piston Integrated Composite Cycle Engine

Aerospace
The Composite Cycle Engine (CCE) enhances the conventional Joule/Brayton cycle by replacing the high-pressure compressor with a high-quality piston-based gas generator that enables extremely high compression, combustion, and expansion of the working ...
Yu-Hsuan Lin, Gregory Uhl, Florian Winter, Alexandros Lessis, Fabio Witzgall, Arne Seitz   +5 more
doaj   +1 more source

Driving Drugs Deeper: Force-Driven Microneedle Systems for Active Therapy and Their Road Towards Clinical Implementation. [PDF]

Small
Force‐driven microneedles are presented as active therapeutic microdevices that overcome the diffusion limits of conventional patches. By integrating gas generation, magnetic actuation, cavitation, or iontophoresis, these systems drive payloads deeper into tissue, enabling faster, more controlled delivery and highlighting key design principles and ...
Amini M, Li P, Shahsavan H, Poudineh M.
europepmc   +2 more sources

Development and Validation of a Cellulose‐Coated Stir Bar Sorptive Extraction Method for a Simple, Environmentally Friendly Approach to Measuring Free Glycerol in Biodiesel

Journal of the American Oil Chemists' Society, EarlyView.
Preparation of a highly porous cellulose‐coated stir bar for the selective, environmentally friendly extraction of free glycerol from biodiesel using the SBSE method, followed by HPLC‐DAD analysis of the extract after derivatization with benzoyl chloride.
Caroline Lopes da Silva, Maria Aparecida Barros, Antônio Carlos Ferreira Batista, Anizio Marcio de Faria   +3 more
wiley   +1 more source

Low‐Field MRI as a Multiparametric Tool for Large Engineered Tissue Characterization

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Advances in 3D bioprinting have enabled the fabrication of large and complex engineered tissues, but their increasing size demands non‐invasive tools for monitoring structure, maturation, and perfusion. Magnetic Resonance Imaging (MRI) offers unique multiparametric capabilities, yet high‐field systems remain costly and inaccessible for most ...
Yilbert Gimenez, Valernst Martial Gilmus, Elliott Cowles, Lucie Essayan, Vincent Semet, Michel Cabrera, Christophe A. Marquette, Simon A. Lambert, Emma Petiot   +8 more
wiley   +1 more source

Development and Experimental Validation of a Tubular Permanent Magnet Linear Alternator for Free-Piston Engine Applications

Machines
The ongoing rise in global electricity demand highlights the need for advanced, efficient, and environmentally responsible energy conversion technologies.
Parviz Famouri, Jayaram Subramanian, Fereshteh Mahmudzadeh-Ghomi, Mehar Bade, Terence Musho, Nigel Clark   +5 more
doaj   +1 more source

Impact of Trace Water on the Macroscopic Activity of Commercial Ammonia Cracking Catalysts Under Process‐Relevant Conditions

Chemie Ingenieur Technik, EarlyView.
This study evaluates how small water impurities—typical in ammonia cracking feedstock—affect catalyst performance at elevated pressures and temperatures. By decoupling permanent degradation from reversible inhibition, the findings highlight trace water as a significant factor for reliable catalyst screening and industrial ammonia cracking scale‐up ...
Bruno V. P. Lago, Sebastian Wodak, Marianne Ponceau, Axel Behrens, Jan‐Peter Bohn, Sebastian Rehfeldt, Harald Klein   +6 more
wiley   +1 more source

Fault Recovery Control Strategy of a Two-Stroke Free-Piston Linear Generator

, 2016
This paper proposes a recovery control strategy of a two-stroke free-piston linear generator. The recovery process is implemented through switching the linear electric machine into motoring mode once certain unstable operation like misfire occurs during ...
Chi Zhang, Chen, Jinhua, Zeng, Dequan, Dequan Zeng, Sun, Peng, Zhao, Fei, Fei Zhao, Jinhua Chen, Lianlian Mao, Zhang, Chi, Peng Sun, Chi, Z, Mao, Lianlian   +12 more
core   +1 more source

A Review of Syngas-Fueled Free Piston Linear Engine Generators: Efficient Fuel Opportunities

INTI Journal
As global energy consumption continues to rise and conventional fuel sources become scarcer, the need for efficient and sustainable technologies is becoming more urgent. Free piston linear engine generators (FPLGs) are emerging as a viable alternative to conventional engines, offering benefits such as lower friction losses and enhanced efficiency. This
Saraban Salsabila, Md Abu Hasan Al Askary   +1 more
openaire   +2 more sources

Study of the Injection Control Strategies of a Compression Ignition Free Piston Engine Linear Generator in a One-Stroke Starting Process

Energies, 2016
For a compression ignition (CI) free piston engine linear generator (FPLG), injection timing is one of the most important parameters that affect its performance, especially for the one-stroke starting operation mode.
Huihua Feng, Yuyao Guo, Yu Song, Chendong Guo, Zhengxing Zuo   +4 more
doaj   +1 more source

Methanol With Increased Water Content in Internal Combustion Engines

Chemie Ingenieur Technik, EarlyView.
This study investigates the potential to improve overall Well‐to‐Wheel efficiency by using low‐purity methanol from synthesis of hydrogen and furnace gas as CO2‐source. Combustion efficiency is comparable to pure methanol, while distillation energy could be saved.
Maximilian Dobberkau, Ronny Werner, Frank Atzler, Johannes Voß   +3 more
wiley   +1 more source