Results 61 to 70 of about 491 (217)
Explosion Limits of Butadiene Mixed with Air
従来の研究に引きつづき,プタジエン-空気系の爆発限界を注入法で決定した。爆発反応は,普通爆発と二段爆発であり,誘導期間は通常数秒以内であるが,爆発半島内では2~3分におよぶものもあった。等圧,等温爆発限界曲線はU字型を示す。等組成曲線で,ブタジエン組成20%のものが一番爆発しやすいことがわかり,またブタジエン組成2~3%,圧力25cmHg以下において爆発半島が存在することがわかった。この爆発反応が熱爆発であるとすると反応次数は2次となり,見かけの活性化エネルギーは約33kcal/molであるが,ブタジエン濃度の増加につれて減少している。生成物や爆発の様相から判断して,ブタジエン-空気系の爆発反応においては,ブタジエン濃度の低い組成の混含ガスでは酸化反応が ...
Jiro OSUGI +2 more
openaire +2 more sources
Biodegradable and Biocompatible Functional Polymers for Biomedical Applications
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han +5 more
wiley +1 more source
A bio‐inspired biopolymeric implantable drug delivery platform enables localized and sustained release of 7‐ethyl‐10‐hydroxycamptothecin (SN‐38) in solid tumor treatment. The three‐dimensional (3D) structured crosslinked‐chitosan implants are fabricated via 3D‐printed molds and provide drug release over 3 months, significantly inhibiting tumor growth ...
Mercedes Lozano‐Garcia +12 more
wiley +1 more source
In this work, diamonds with negative charged silicon‐vacancy (SiV−) centers have been designed for use as thermometers in biomedical applications. Multiparametric analysis of the emission characteristics of the SiV− centers provides extraordinary sensitivity for temperature detection in the physiological temperature range.
María Gragera +6 more
wiley +1 more source
Models to Estimate the Lower Explosion Limits of Dusts, Gases and Hybrid Mixtures
The present paper reports on the experimental and theoretical investigations on the lower explosion limits of single dusts, gases as well of two phase mixtures such as gas/dust, vapor/dust, spray/vapor and vapor/gas.
Kwasi Addai Emmanuel +2 more
doaj +1 more source
Catalytically Enhanced Near Room‐Temperature Hydrogen Sensing Using Pd‐ZnO Colloidal Crystals
Pd‐decorated ZnO colloidal crystal monolayers demonstrate excellent performance across a wide hydrogen concentration range at 33°C, with high selectivity and reproducible device fabrication. The sensors show strong responses even at low‐ppm H2 concentrations and an ultra‐low detection limit of 82 ppb, indicating their suitability for diverse hydrogen ...
Hamidah Alluhaybi +13 more
wiley +1 more source
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen +7 more
wiley +1 more source
Limit theory for an explosive autoregressive process
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WANG, Xiaohu, YU, Jun
openaire +4 more sources
Multifunctional solid polymer electrolyte (SPE) films integrating intrinsic self‐healing, mechanical stretchability, and dual photo‐ and pH‐responsive ionic conductivity are developed. Constructed from thermoplastic polyurethane (TPU) and hydrogen‐bonded poly(thiourea triethylene glycol) (PTUEG3), these films form a dynamic supramolecular network ...
Mei‐Li Li +12 more
wiley +1 more source
An atomically dispersed Ni catalyst featuring Ni‐N4 coordination is developed as a sulfur host for nonaqueous Zn─S batteries. This configuration modulates the electronic structure to lower activation barriers during rate‐limiting steps and promotes a robust ZnF2‐rich cathode‐electrolyte interphase, thereby accelerating sulfur redox kinetics ...
Junhyuk Ji +7 more
wiley +1 more source

