Results 91 to 100 of about 2,185,082 (309)

Spatially resolved physical and chemical properties of the planetary nebula NGC 3242

, 2013
Optical integral-field spectroscopy was used to investigate the planetary nebula NGC 3242. We analysed the main morphological components of this source, including its knots, but not the halo.
Corradi, R. L. M., Gonçalves, D. R., Leal-Ferreira, M. L., Monteiro, H.   +3 more
core   +1 more source

Dipteryx lacunifera seed oil: characterization and thermal stability Óleo de sementes de fava de morcego: caracterização e estabilidade térmica

Ciência e Agrotecnologia, 2009
The Dipteryx lacunifera Ducke is an oleaginous legume with high oil and protein content that can be used in human nutrition. The specie is a native of the Piauí and Maranhão state in the north east of Brazil.
Vicente Queiroga Neto, Pushkar Singh Bora, Zeomar Nitão Diniz, José Marcelino Oliveira Cavalheiro, Karine Formiga Queiroga   +4 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Rice Fields Chemical and Physical Properties and the Implications on Breeding Strategie [PDF]

, 2019
Soil related constraints are major limiting factors in crop production in the Sahel. The objective of this study was to assess the properties of farmer's fields soil and irrigation water in Niger and the implications in rice improvement.
Danquah, E., Joseph, B.T.B., Manneh, B., Nartey, E., Ofori, K., Souleymane, O.   +5 more
core  

Features of the vegetative state and arterial pressure level in children with chronic gastroduodenal pathology

Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2018
Introduction. Heterocyclic compounds are the foundation on which the creation of medicines is successfully carried out. One such system is 1,2,4-triazole and 3-methylxanthine.
A. S. Hotsulia
doaj   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

Advanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer, Eric R. Hoglund, Anton V. Ievlev, Patrick E. Hopkins   +3 more
wiley   +1 more source

Exploratory study of hypergolic ignition spike phenomena, phase 2, part 2, July 1 to September 30, 1966 [PDF]

Chemical analysis, physical properties, and combustion characteristics of hydrazine ...
Christos, T., James, H., Miron, Y., Perlee, H. E.   +3 more
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Nasa developments in cobalt-base superalloys [PDF]

Chemical, mechanical and physical properties of cobalt-refractory-metal superalloys for high temperature aerospace ...
Ashbrook, R. L., Freche, J. C., Sandrock, G. D.   +2 more
core   +1 more source