Results 11 to 20 of about 67,767 (140)
Use of high-thermal conductive aluminum nitride based ceramics in vacuum UHF electronic devices [PDF]
Технологія та конструювання в електронній апаратурі, 2013 Analysis of properties and characteristics of the alumina, beryllium oxide and aluminium nitride based ceramic materials used in UHF electronic devices has been made.
V. I. Chasnyk
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Revival of phonecard collection as a hobby in Brazil
Revista Brasileira de História da Mídia, 2023 Phonecards have been collected as a hobby by Brazilian people with a peak in the number of collectors (around 300 thousand people) from 1994 to the beginning of the 2010s. The objective of this study was to report the revival of phonecard collection as a
Wagner de Souza Tavares
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KAJIAN EFISIENSI PANAS KOLEKTOR PEMANAS AIR SURYA PADA MOBILE MINI BIODIESEL PLANT
Rekayasa Mesin, 2022 Integration of solar water heating system and biodiesel unit process has resulted a prototype called Mini Biodiesel Plant. The key of that unit is the effectiveness of heat transfer that occured in the solar collector.
Rinjani Rakasiwi +3 more
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About Bookstores of Ankara [PDF]
Ankara Araştırmaları Dergisi, 2013 This article deals with the bookstores established in Ankara until the year of 1960. The information about the first years of bookselling and the first bookstores in Ankara is considerably scarce because of the very limited number of written documents ...
Turan Tanyer
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Study on Flotation Separation of High Sulfur Lead-zinc Ore from Yunnan
Kuangchan zonghe liyong, 2022 Study on the mineral processing of a high sulfur lead-zinc ore in Yunnan Province were conducted. Grades of lead, zinc and silver were 2.98%, 2.79% and 114.95 g/t, respectively.
Chenqiang Hu +5 more
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Experimental Study on Flotation of the Fine Ilmenite with a New Collector TZ-1
Kuangchan zonghe liyong, 2022 In this paper, two new chelating agents were compared with three ilmenite conventional chelating agents, and it was found that the new chelating agents had more advantages in selective collection.
Weisi Li +6 more
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The significance of geological data at hydraulic fracturing planning
Мінеральні ресурси України, 2018 Scientific and methodological aspects of the development of oil and gas fields at the use of hydraulic fracturing have been considered. The causes of unsatisfactory results at hydraulic fracturing, and also factors to be taken into account when choosing ...
H. I. Rudko +4 more
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Cogent Engineering, 2020 Preservation of banana through drying is a recommended method for improving the shelf life. In this study, an experimental and theoretical evaluation of a developed forced-convection indirect solar drying system with a double-pass solar collector (DPSC ...
Philemon X. Mutabilwa, Kevin N. Nwaigwe
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Известия ТИНРО, 2021 Growth and survival rates of juveniles of pacific oyster Crassostrea gigas are estimated for the first time in conditions of Peter the Great Bay (Japan Sea). The data were collected at artificial hatchery in the Aquaculture Center located on Popov Island
A. S. Tabelskaya, G. S. Gavrilova
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Su alcuni aspetti delle attività dei collettori di beni nei testi di Ebla
Asia Anteriore Antica, 2020 The article intends to contribute to the study of the term ur4 by focusing on the attestations that show the close connection of the ur4 officials with some members of the Ebla élite. In particular, it should be noted that some officials recur constantly
Elisabetta Cianfanelli
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