Wyniki wyszukiwania - BazTech

1

The construction of Mazovian furniture from 17th - 19th century

Lange J., Wiaderek K.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2018

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No. 104

202--206

EN

The objective of the research is to introduce and gain knowledge on Mazovian furniture, which were produced between the 17th and 19th centuries. 119 research objects were selected following preliminary source and local surveys. The author determined their type of construction and finishing. The study included 85 cabinet furniture. They were measured and inventoried in situ. On this basis, author prepared descriptive documentation. The aim of the article is to enrich the information about Mazovian furniture. These results can be used also in the works related to the identification of furniture in this area.

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Wykorzystanie elektroforezy kapilarnej do oznaczania azotanów w próbkach żywności

Lange J., Polubiec E., Biesaga M.

Analityka : nauka i praktyka

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2007

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nr 3

4-7

3

Bicyclic [b]-Heteroannulated Pyridazine Derivatives. 10. Acid Cleavage of Some Beta-Keto Esters in the Reaction with 4,4-Dimethyl- and 4-Penyltetrahydropyridazine-3,6-dione 3-Hydrazones

Wejroch K., Karolak-Wojciechowska J., Lange J., Sośnicki J. G.

Polish Journal of Chemistry

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2002

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Vol. 76 / nr 11

1577-1586

EN

4,4-Dimethyltetrahydropyridazine-3,6-dione 3-hydrazone (1) reacted with _-keto esters in refluxing ethanol to give the acid cleavage products: 7,8-dihydro-3,8,8-trimethyltriazolo[ 4,3-b]pyridazin-6(5H)-one (7) and esters 9. The yield of the reaction in most cases was nearly quantitative. At room temperature mostly the simple condensation products 4 were isolated. In analogous reactions, 4-phenyltetrahydropyridazine-3,6- dione 3-hydrazone (2) was found to be much less reactive. The hydrazone-ester condensation products 4 and some 5 were converted into the corresponding pyrazolylpyridazine derivatives 10 and 11, respectively, by heating above their melting points; the formation of 7 was noted in the reactions with 4. The results support the concept of different tautomeric preferences in 1 and 2.

4

DISAMATIC w odlewniach aluminium

Andersen U., Hansen P., Lange J., Rasmussen N., Wanzeck M.

Przegląd Odlewnictwa

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1998

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Vol. 48, z. 11

390-392

PL

W artykule przedstawiono zalety i korzyści wynikające se stowowania urządzeń DISAMATIC do produkcji wysokojakościowych odlewów ze stopów aluminium. Tendencje wzrostu popytu na odlewy wykonane z tych stopów stanowiły podstwową motywację do opracowania nowej metodyki i urządzeń zapewniających otrzymywanie odlewów pozbawionych porów gazowych, jam skurczowych oraz zanieczyszczeń w postaci tlenków metali.

EN

In the article, the advantages of using DISAMATIC installations in the production of high quality aluminium alloys castings are presented. Trends showing an increase in the demand for castings made of these alloys were the basic motivation to elaborate a new methodology and installations which ensure the production fo castings without gas porosities, contraction cavities and impurities in the form of metal oxides.