Results 31 to 40 of about 37,547 (266)

Measurements of flame propagation in a rotary engine using rotor-installed ionization gaps

Nihon Kikai Gakkai ronbunshu, 2018
The combustion in a rotary engine has been investigated in terms of the flame propagation on the rotor flank and the information obtained simultaneously from the working chamber pressure.
Kenji MATSUURA
doaj   +1 more source

Defect‐Engineered Microwave‐Responsive Ni@C Composites From Waste PET for Catalytic Plastic Upcycling

Advanced Materials, EarlyView.
A circular upcycling strategy transforms waste poly(ethylene terephthalate) bottles into microwave‐responsive Ni@C catalyst featuring lattice‐distorted nickel cores and defective carbon shells. These strain‐rich heterointerfaces enhance dielectric loss and promote localized microwave hotspots, accelerating peroxymonosulfate activation and polymer‐chain
Xiao Lu, Shiying Ren, Jingkai Lin, Kunsheng Hu, Yalan Mo, Shaobin Wang, Wenjie Tian, Xiaoguang Duan   +7 more
wiley   +1 more source

Portable flame ionization gas analyzer

Технологія та конструювання в електронній апаратурі, 2004
The principle of operation, functional diagram, design, and performance of the portable flame ionization gas analyzer 623PI05, developed at the Ukrainian Research Institute of Analytical Instrument Engineering, are described.
V. F. Ryzhkov
doaj  

Mechanisms of air breakdowns for aluminum conductors steel reinforced wire-wire gaps induced by propane jet flames

Frontiers in Earth Science, 2023
In recent years, events of transmission line tripping caused by wildfires have occurred frequently in many mountain areas. In order to understand the mechanism of such events, an experimental system for simulating breakdown discharge processes of model ...
Siyi Chen, Siyi Chen, Fei You, Fei You, Jixiang Xu, Zhenhua Wang, Zhenhua Wang, Yun Zhang, Yaopeng Zhao, Yaopeng Zhao, Haoyuan Yang, Haoyuan Yang, Zhiqiang Jiang, Zhiqiang Jiang   +13 more
doaj   +1 more source

Aggregation‐Controlled Vat Dyeing of Meta‐Aramid Fibers: Mechanistic Insights and Suppression of Surface Dye Deposition

Advanced Materials Interfaces, EarlyView.
Supramolecular aggregation governs the interfacial adsorption, diffusion, and fixation of anthraquinone‐based vat dyes in meta‐aramid fibers. By correlating reduction chemistry, aggregate formation, and fiber microstructure, a multiscale mechanism for aggregation‐controlled dyeing is established, providing an effective strategy to suppress surface dye ...
Jisiyuan Qin, Yahui Xia, Shiqi Hu, Yongmin Wu, Mohammad Raza Miah, Ruizhe Lu, Yunhan Tang, Genyang Cao, Sakil Mahmud   +8 more
wiley   +1 more source

Chemical Composition of the Essential Oil From Schmidt-Leb. Grown in the Peruvian Andes

Natural Product Communications, 2019
The chemical composition of the essential oil from aerial parts of Minthostachys acris Schmidt-Leb. grown in Cuzco was studied. A total of 59 volatile compounds were identified by gas-chromatography-flame ionization detector and gas chromatography-mass ...
Jorge A. Pino, María Milagros Dueñas-Mendoza, Leoncio Solís-Quispe   +2 more
doaj   +1 more source

Determination of fatty acids in beer by fast routine analyse.

Kvasný průmysl, 2013
Fatty acids in beer originate not only from raw materials but their content depends also on the duration of fermentation. An increased content of fatty acids during fermentation of wort can influence the quality of final beer.
Tomáš HORÁK, Jiří ČULÍK, Marie JURKOVÁ, Pavel ČEJKA, Jana OLŠOVSKÁ   +4 more
doaj   +1 more source

Tailoring Amine Substitution in Fluorene and Dibenzothiophene: A Molecular Strategy for Ultralong Organic Phosphorescence

Advanced Optical Materials, EarlyView.
Tailored amine substitution in fluorene and dibenzothiophene derivatives enables systematic control of excited‐state properties and triplet population. Combined photophysical studies, TD‐DFT calculations and time‐resolved EPR reveal how charge‐transfer character, sulfur‐induced spin–orbit coupling and triplet manifold engineering cooperate to promote ...
Francesco Ruighi, Gianluca Accorsi, Eduardo Fabiano, Lorenzo Franco, Alessandro Agostini, Samuel Zatta, Leonard E. Cleve, Federica Angilè, Francesco Paolo Fanizzi, Gustavo Fernández, Agostina L. Capodilupo   +10 more
wiley   +1 more source

In Situ Photopolymerization of Smectic B Liquid‐Crystalline Electrolytes from Mesogenic Phosphate–Diacrylate/Ionic Liquid Complexes for High‐Performance Soft Ionic Actuators

Advanced Robotics Research, EarlyView.
A flexible liquid‐crystalline electrolyte membrane via in situ photopolymerization of a phosphate‐functionalized mesogen, ionic liquid, and diacrylate monomer is developed. The resulting smectic B (SmB)‐phase structure enables 2D ion transport with high conductivity (10−4 S cm−1).
Chengyang Liu, Masafumi Yoshio
wiley   +1 more source

Faster gas chromatography and its utilization in brewing. Part 3. - The determination of some low volatile beer flavours.

Kvasný průmysl, 2009
Shortening of gas chromatography run time without losing of separation efficiency is available by using of silica capillary columns with new size of internal diameter - 0.18 mm.
Tomáš HORÁK, Jiří ČULÍK, Marie JURKOVÁ, Pavel ČEJKA, Vladimír KELLNER, Josef DVOŘÁK, Danuša HAŠKOVÁ   +6 more
doaj   +1 more source