نتایج جستجو برای: reuseable catalysts

تعداد نتایج: 32969  

Journal: :Physical Chemistry Chemical Physics 2023

Heterogenisation of homogeneous catalysts onto solid supports represents a potential strategy to make the catalytic function recyclable and reuseable. Yet, it is usually case that immobilised have...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1994
mohammad m. hashemi dadkhoda chazanfari

para-aminobenzoic acid is supported on silica gel via reaction of activated silica gel and p-aminobenzoic acid which is then converted to its manganese and cobalt salts. a mixture of the manganese and cobalt salts of the acid is used to catalyze allylic and benzylic alcohols to their corresponding carbonyl compounds in reasonable yields using oxygen or air. reactions are clean and the catalysts...

2007
Jens Bräuer Henning Kleinwechter Andreas Leicher

Today, development and implementation of automotive embedded systems is based on a model-based process. A major problem of respective model-based toolchains can be traced back to inadequate testing tools, which often are not standardized, incomplete and cumbersome in usage. Due to these shortcomings, test specifications are neither exchangeable nor reuseable. In this paper, we propose μTTCN for...

1988
Ralph E. Johnson Brian Foote

Object-oriented programming is as much a di erent way of designing programs as it is a di erent way of designing programming languages. This paper describes what it is like to design systems in Smalltalk. In particular, since a major motivation for object-oriented programming is software reuse, this paper describes how classes are developed so that they will be reuseable.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده علوم 1388

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...

Journal: :Aerotecnica Missili & Spazio 2022

Abstract With regard to the space field, number of sensors has grown for a middle-sized spacecraft from more than 500 at beginning twenty-first century [1] several thousands nowadays applications. Meanwhile, Reusable Launch Vehicles (RLVs) moved their steps demonstrators commercial working systems. As result, Health Monitoring (HM) is conquered its own in field and are primary elements required...

Journal: :Mycologia 2006
Kurt Lamour Ledare Finley

We present a strategy to recover high molecular weight genomic DNA from large numbers of isolates of Phytophthora. Included are steps for generating mycelial mass in 24-well reuseable deep well plates, efficient lyophilization and disruption of the mycelium and genomic DNA extraction with 96-well glass fiber filter plates. The resulting DNA is consistently high molecular weight and is suitable ...

Journal: :Jurnal Pengabdian Masyarakat Indonesia 2023

Pada saat berbelanja, umumnya masyarakat menggunakan kantong berbahan plastik untuk membawa barang-barang belanja. Hal ini menjadi problem karena akan menambah sampah yang sulit terurai. Berdasar hal tersebut, maka dilakukan kegiatan sosialisasi Tas LiPanKu (LIpat simPAN di saKU) sebagai upaya mengurangi plastik. terbuat dari bahan polyester didesain mudah dilipat, praktis dibawa, dapat dicuci,...

Journal: :polyolefins journal 0
natalya n. chumachenko boreskov institute of catalysis, siberian branch, russian academy of sciences, prospect akademika lavrentieva 5, novosibirsk 630090 , russian federation vladimir a. zakharov boreskov institute of catalysis, siberian branch, russian academy of sciences, prospect akademika lavrentieva 5, novosibirsk 630090 , russian federation sergey a. sergeev boreskov institute of catalysis, siberian branch, russian academy of sciences, prospect akademika lavrentieva 5, novosibirsk 630090 , russian federation svetlana v. cherepanova boreskov institute of catalysis, siberian branch, russian academy of sciences, prospect akademika lavrentieva 5, novosibirsk 630090 , russian federation

supported catalysts synthesized via the interaction of mg(oet)2 with ticl4 in the presence or absence of an internal stereoregulating donor (di-n-butyl phthalate), with different solvents (chlorobenzene, n-undecane, n-heptane) at different titanation temperatures have been studied by a set of physicochemical methods. data on the chemical composition, x-ray structure and pore structure of these ...

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