Results 61 to 70 of about 24,482,153 (293)

Propylene glycol monomethyl ether isomers in workplace air determined by solvent desorption-gas chromatography

环境与职业医学
BackgroundPropylene glycol monomethyl ether (PGME) is a widely used organic solvent. It exists in the form of two isomers in the workplace, which will cause adverse effects such as eye and upper respiratory tract irritation in workers.
Junyu PAN, Mengmeng LIU, Qiang ZENG
doaj   +1 more source

Explosion Characteristics of Propanol Isomer–Air Mixtures

Energies, 2019
This paper describes a series of experiments performed to study the explosion characteristics of propanol isomer (1-propanol and 2-propanol)−air binary mixtures. The experiments were conducted in two different experimental arrangements—a 0.02
Jan Skřínský, Tadeáš Ochodek
doaj   +1 more source

Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes

Advanced Materials, EarlyView.
Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti, Sergio Martínez‐Saiz, Morena Cervino, Edoardo Stanzani, Sandra Jenatsch, Qingsen Zeng, Joo Sung Kim, Dong‐Hyeok Kim, Eojin Yoon, Tae‐Woo Lee, Daniel Tordera, Henk J. Bolink   +11 more
wiley   +1 more source

Research of Effect on Gasoline-2-Propanol Blends on Exhaust Emission of Gasoline Engine with Direct Enjection Using Taguchi Approach

European Mechanical Science, 2021
Internal combustion engines are quite widely used today. Much work is being done to reduce the environmental damage of internal combustion engines, reduce fuel consumption and improve engine performance values.
Ekrem Taşören, Hasan Aydoğan, Mehmet Selman Gökmen   +2 more
doaj   +1 more source

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

Advanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler, Pau Ferri, Francisco Javier Escobar‐Bedia, Álvaro Mayoral, Alejandro Vidal‐Moya, Richard Kendra, Chen Lei, Miguel Palomino, Fernando Rey, Lukáš Grajciar, Christopher James Heard, Pedro Serna, Mercedes Boronat, Cristina Martínez, Manuel Moliner   +14 more
wiley   +1 more source

Pervaporative Dehydration of Organic Solvents Using High-Silica CHA-Type Zeolite Membrane

Membranes, 2021
A high-silica chabazite (CHA) type zeolite membrane was prepared on the porous α-Al2O3 support tube by the secondary growth of seed particles. The dehydration performances of the membrane were determined using methanol, ethanol, 2-propanol, acetone ...
Yasuhisa Hasegawa, Chie Abe, Ayumi Ikeda
doaj   +1 more source

Gold‐Stabilized Copper Enables Anodic Hydrogen Evolution for Ultralow‐Voltage CO‐to‐Ethylene Electrolysis

Advanced Materials, EarlyView.
Gold‐stabilized copper suppresses hydroxide‐driven deactivation during anodic hydrogen evolution from furfural. Pairing this low‐potential anode with CO‐to‐ethylene electroreduction enables sub‐1 V operation at 400 mA cm−2, high single‐pass CO conversion, and co‐production of ethylene, furoic acid, and a separate hydrogen stream.
Sungjin Park, Hengzhou Liu, Heejong Shin, Hafiz Ghulam Abbas, Loann Bonnenfant, Ke Xie, Hyeon Seok Lee, Fatemeh Arabyarmohammadi, Jianan Erick Huang, Panos Papangelakis, Peiying Wang, Ali Shayesteh Zeraati, Jiheon Kim, Roham Dorakhan, David Sinton, Xiaopeng Liu, Wenzhen Li, Byoung‐hoon Lee, Edward H. Sargent   +18 more
wiley   +1 more source

Anisotropic Masked Mycobacterium Potentiates Amplified Antitumor Trained Immunity via Spleen Targeting and Myelopoiesis Conversion

Advanced Materials, EarlyView.
An engineered Trojan Mycobacterium, developed via a “peeling‐off and masking‐up” strategy, functions as a powerful splenic myelopoiesis converter. This spleen‐targeted nanomedicine induces trained immunity to reprogram immunosuppressive myeloid reservoirs into antitumoral effectors.
Jin‐Ho Choi, Sang Nam Lee, Jang Hun Heo, Soyoung Park, Sei Hyun Park, Yong Taik Lim   +5 more
wiley   +1 more source

General Hydroamination of Allenamides: Mechanistic Insights with an Acetate Adduct and 1,1,1,3,3,3-Hexafluoro-2-propanol

The 1,1,1,3,3,3-hexafluoro-2-propanol-assisted allenamide activation enables metal-free regioselective intermolecular interception of amines, constituting a general C–N bond formation process for accessing value-added 1,3-diamines.
Abdikani Omar Farah (14228295), Henry R. Wise (14228298), Malempati Srimannarayana (611754), Jin Kyoon Park (1626877), Paul Ha-Yeon Cheong (1642720), Bhailal C. Merja (16647593), Kadiyala Sagar (16647590), Tapas R. Pradhan (8604540)   +7 more
core   +1 more source

Síntese de ésteres catalisada por lipase de pseudomonas sp. imobilizada em filmes de caseinato de sódio/glicerol [PDF]

, 2003
TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Físicas e Matemáticas. Curso de Química.Nos últimos anos as lipases vêm sendo empregadas com sucesso em processos biocatalíticos.
SEBRÃO, Damianni
core