Results 121 to 130 of about 64,106 (285)

Flow through reactors for organic chemistry: directly electrically heated tubular mini reactors as an enabling technology for organic synthesis

Beilstein Journal of Organic Chemistry, 2009
Until recently traditional heating in organic chemistry has been done with oil heating baths or using electric heat exchangers. With the advent of microwave equipment, heating by microwaves was rapidly introduced as standard method in organic chemistry ...
Ulrich Kunz, Thomas Turek
doaj   +1 more source

Automated Additive Construction (AAC) for Earth and Space Using In-situ Resources [PDF]

, 2016
Using Automated Additive Construction (AAC), low-fidelity large-scale compressive structures can be produced out of a wide variety of materials found in the environment.
Ali, Hisham, Andersen, Christian, Burgoyne, Hayden, Chambers, Wesley, Clinton, Raymond, De Kestellier, Xavier, Ebelt, Keye, Gerner, Shai, Hofmann, Douglas, Hogstrom, Kristina, Howe, Scott, Ilves, Erika, Jerves, Alex, Keenan, Ryan, Keravala, Jim, Khoshnevis, Behrokh, Kochmann, Dennis, Lim, Sungwoo, Metzger, Philip, Meza, Lucas, Mueller, Robert P., Nakamura, Takashi, Nelson, Andrew, Partridge, Harry, Pettit, Donald, Pyle, Rod, Reiners, Eric, Shapiro, Andrew, Singer, Russell, Tan, Wei-Lin, Vazquez, Noel, Wilcox, Brian, Zelhofer, Alex   +32 more
core  

The influence of power and frequency on the filamentary behavior of a flowing DBD-application to the splitting of CO2

, 2016
In this experimental study, a flowing dielectric barrier discharge operating at atmospheric pressure is used for the splitting of CO2 into O2 and CO. The influence of the applied frequency and plasma power on the microdischarge properties is investigated
Bogaerts, Annemie, Britun, Nikolay, Dufour, Thierry, Ozkan, Alp, Reniers, François, Silva, Tiago, Snyders, Rony   +6 more
core   +3 more sources

From Hemp Bast to Lyocell Fiber: Sustainable Process Optimization for Lyocell‐Grade Dissolving Pulp

Journal of Applied Polymer Science, EarlyView.
This study presents a sustainable method to produce lyocell‐grade dissolving pulp from Canadian hemp bast fibers. A simplified alkali‐chelation‐bleaching process, free from sulfur and chlorine, yielded high α‐cellulose pulp with low lignin and hemicellulose content. The pulp was successfully spun into continuous hemp‐based lyocell fibers, demonstrating
Md Abu Sayed, Lelia Lawson, Bernardo Araujo Souto, K. M. Abdun Noor, Dagem Z. Haddis, Frehiwot T. Hailu, Jane Batcheller, David C. Bressler, Patricia I. Dolez   +8 more
wiley   +1 more source

Effective acetalization of furfural catalyzed by Fe‐ and Co‐oxalates: impact of alcohols structure on products composition

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Fe‐, Co‐, and FeCo‐oxalates supported on silica gel (5 wt% metal load) were synthesized, characterized, and tested for the first time in solvent‐free furfural (FF) acetalization with C1–C8 alcohols at 70–170 °C under both conventional and microwave (MW)‐assisted conditions. The interaction of FF with linear C1–C4 alcohols yielded pincer‐shaped
Alexander Pokutsa, Katarzyna Rydel‐Ciszek, Alina M. Balu, Rafael Luque   +3 more
wiley   +1 more source

Simplified Procedure for General Synthesis of Monosubstituted Piperazines-From a Batch Reaction Vessel to a Flow (Microwave) Reactor. [PDF]

Molecules, 2020
Němečková D, Havránková E, Šimbera J, Ševčík R, Pazdera P.   +4 more
europepmc   +1 more source

Valorization of fishing industry by‐products for biodiesel production: Unlocking the potential of residual fish oil

Biofuels, Bioproducts and Biorefining, EarlyView.
Abstract Fishing waste and its by‐products, whether naturally occurring or generated by the processing industry, represent a significant opportunity for producing high‐value products. These often discarded or underutilized residues can be converted into various valuable products through advanced processing technologies. Among the potential products are
Patrick da Silva Sousa, Francisco Simão Neto, Paulo Gonçalves de Sousa Junior, Francisco Izaias da Silva Aires, Calebe da Rocha Silva, Kaiany Moreira dos Santos, Viviane de Castro Bizerra, Maria Alexsandra Sousa Rios, José Cleiton Sousa dos Santos   +8 more
wiley   +1 more source

Microwave-assisted heating in a novel thin film-liquid spinning coaxial reactor

AIMS Electronics and Electrical Engineering
This paper introduces a novel rotating reactor designed for microwave-assisted heating and chemical processes. It consists of a sealed coaxial waveguide with a dielectric hollow mixer that rotates along the length of the central conductor.
Guennadi A. Kouzaev
doaj   +1 more source

Focal plane arrays for submillimeter waves using two-dimensional electron gas elements: A grant under the Innovative Research Program [PDF]

This final report describes a three-year research effort, aimed at developing new types of THz low noise receivers, based on bulk effect ('hot electron') nonlinearities in the Two-Dimensional Electron Gas (2DEG) Medium, and the inclusion of such ...
Lau, Kei-May, Yngvesson, K. Sigfrid
core   +1 more source

Layered double hydroxides‐based nanozymes for effective biomedical applications: A review and future perspectives

BMEMat, EarlyView.
In this review, we introduced the preparation methods of LDHzymes and discussed their catalytic activity and mechanisms. Subsequently, the applications of LDHzymes in biomedical were discussed. Finally, potential future work on LDHzymes was proposed to better design these new types of nanozymes.
Jiawei Cui, Lu Zhang, Junyi Li, Yue Chen, Sheng Dai, Manfred F. Maitz, Ansha Zhao, Ping Yang   +7 more
wiley   +1 more source