Results 1 to 10 of about 126,338 (305)

An Experimental and Quantum Chemical Calculation Study on the Performance of Different Types of Ester Collectors [PDF]

open access: yesMolecules
Ester collectors have rapidly developed into the main flotation collectors for copper sulfide minerals since they were developed. In this study, the collecting performance of four collectors, O-isopropyl-N-ethyl thionocarbamate ester (IPETC), 3-pentyl ...
Di Wu, Jianhua Chen, Yuqiong Li
doaj   +2 more sources

Collectors, Collecting and Non-collectibles. Between Everyday Aesthetics and Aestheticism

open access: yesESPES, 2021
Collecting goes beyond art collecting and seems to meet a more general need. Although it originally aided survival and has predecessors in the animal world, the gesture of collecting has complex motivations. After exploring the collector’s psychology and
Mădălina Diaconu
doaj   +3 more sources

Collecting Performance Prediction for the Rubber Collector in Horizontal Wellbore Based on AutoML [PDF]

open access: yesSensors
To objectively study the influencing factors of rubber collector performance in horizontal wellbores and identify parameter optimization directions, this paper introduces a modeling approach for rubber collectors in horizontal wellbores and develops a ...
Shaohua Li   +4 more
doaj   +2 more sources

“Ma palun saatke mulle üks erakiri…” Intersubjektiivsus Jaan Saalvergi kirjades Jakob Hurdale [PDF]

open access: yesMäetagused, 2023
Letters are a means of communication with people who are far away. As such, letters are always intended to create intersubjective space common to the sender and receiver of the letter.
Katre Kikas
doaj   +1 more source

Developing the System of Collecting, Storing and Processing Information from Solar Collectors [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2021
The article herein presents a new technique of controlling the system of collecting, storing and processing the information from the solar collectors, which might be applied to heating the industrial and domestic compartments for hot water supply.
Waldemar Wojcik   +6 more
doaj   +1 more source

Livros, objectos, manuscritos e fotografias: doação e venda [PDF]

open access: yesPessoa Plural, 2020
De forma necessariamente subjectiva, este artigo apresenta um panorama geral do actual estado do espólio do poeta português Fernando Pessoa (1888-1935).
Pizarro, Jerónimo, Filipe, Teresa
doaj   +1 more source

A Social Network Analysis of Shaoxing Book Collector Groups in Qing Dynasty

open access: yesTūzī yǔ dàng’àn xuékān, 2021
The origins of the ancient Chinese book collection activities were very early and highly developed. Because of the advanced paper-making industry in Shaoxing (the eastern part of Zhejiang in the Qing Dynasty), there were many talented people at book ...
Bo-Yi Chen, Kuan-Chih Chen
doaj   +1 more source

A colecção pessoana de Santo Tirso: adenda [PDF]

open access: yesPessoa Plural, 2019
Oferece-se nesta adenda um aprofundamento da catalogação dos livros de e sobre Fernando Pessoa em posse da família de António Júlia Miranda. Além de se apresentar um conjunto de livros que não foram devidamente assinalados no anterior contributo, são ...
Pizarro, Jerónimo   +2 more
doaj   +1 more source

En-red-ar entre redes de niebla: reflexiones sobre un dispositivo gráfico-narrativo en torno a la colecta, los colectores y las pieles de aves

open access: yesAntípoda: Revista de Antropología y Arqueología, 2021
Ornithological collections are nourished by the specimens obtained from the practice of collecting birds. A field that, far from being homogeneous, embodies multiple singularities from the experience of those who conduct it: the collectors.
Nelsy Niño-Rodríguez   +2 more
doaj   +1 more source

Influence of nocturnal thermal insulation on thermal performance improvement of solar air collector with phase-change material

open access: yesCase Studies in Thermal Engineering, 2023
Solar air collectors (SAC) are widely used for the wintery heating, but they have a mismatch shortcoming between supply and demand periods of heat quantity.
Renfei Bo   +4 more
doaj   +1 more source

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