Results 21 to 30 of about 117,724 (349)

Low-energy binding agent for stone wool-based products [PDF]

Нанотехнологии в строительстве
Introduction. The primary objective of this study is to reduce the energy consumption involved in manufacturing mineral wool products by developing an innovative binder based on modified epoxy compounds. To achieve this objective, the potential use of
Aleksey D. Zhukov, Saveliy O. Artemenko, Petr M. Zhuk, Ekaterina Yu. Bobrova, Andrey A. Medvedev   +4 more
doaj   +1 more source

Effect of Incorporation of Inhibitor Loaded Mesoporous Silica on the Corrosion Behavior of Epoxy Coatings [PDF]

Journal of Ultrafine Grained and Nanostructured Materials, 2013
In this research, mesoporous silica was applied as the host of corrosion inhibitor (molybdate). The loaded mesoporous silica was dispersed in an epoxy matrix. The composite was then coated on the mild steel plate.
Mahdi Yeganeh, Mohsen Saremi, Ahmad Keyvani   +2 more
doaj   +1 more source

Natural Products in Drug Discovery: Antibacterial and Antifungal Activity of Essential Oil of Compound Isolated from Senecio royleanus

Journal of Pure and Applied Microbiology, 2019
Natural products are an excellent source of therapeutic products which has led to the discovery of many important drugs that play an important role in the treatment of various human diseases.
Chandra Mohan Singh Bisht, S.M. Shakeel Iqubal, Aejaz A. Khan, Tasneem Mohammed, Areej Dawoud, Mohammed Gamal, S.K. Singh, Basim H. Asghar   +7 more
doaj   +1 more source

Monoterpenoid Indole Alkaloids from Alstonia yunnanensis and Their Cytotoxic and Anti-inflammatory Activities

Molecules, 2012
The 80% ethanol extract of Alstonia yunnanensis afforded five new monoterpenoid indole alkaloids: 11-hydroxy-6,7-epoxy-8-oxo-vincadifformine (1), 14-chloro-15-hydroxy- vincadifformine (2), perakine N4-oxide (3), raucaffrinoline N4-oxide (4), and vinorine
Guobiao Liang, Zhen-Quan Song, Xiao-Ming Li, Xu Gao, Yong Liang, Peng Cao   +5 more
doaj   +1 more source

The development and characteristics of a hand-held high power diode laser-based industrial tile grout removal and single-stage sealing system [PDF]

, 2002
As the field of laser materials processing becomes ever more diverse, the high power diode laser (HPDL) is now being regarded by many as the most applicable tool.
A. W. Gale, Abbott D. H., Alunovic M., Asmus J. F., Bagger C., Borodina T. I., Cooper M. I., J. Lawrence, K. Minami, L. Li, Lawrence J., Lawrence J., Lawrence J., Lawrence J., Lawrence J., Lazzarini L., Li J. G., Low D. K. Y., M. J. J. Schmidt, Petitbon A., R. E. Edwards, Schmidt M. J. J., Schmidt M. J. J., Schreiber P., Sugita K., Yoshizawa H.   +25 more
core   +1 more source

The use of amine and polyetheramine hardeners in end sealing compounds for hollow fiber membrane modules

Учёные записки Казанского университета: Серия Естественные науки
The geometry and structure of hollow fiber membranes fabricated from polysulfone by the dry-wet phase inversion method were studied with the help of scanning electron microscopy.
N. P. Bezrukov, V. P. Vasilevsky, D. N. Matveev, Yu. I. Matveeva, A. V. Vlasova, T. S. Anokhina, I. L. Borisov, S. V. Antonov   +7 more
doaj   +1 more source

Synthesis and Properties of Peroxy Oligomers Obtained by Telomerization Effects of the Presence of Bases

Eurasian Chemico-Technological Journal, 2003
New bifunctional oligomers bearing peroxy groups have been synthesized by telomerization in one step reaction. For obtaining oligoperoxides (PO) by telomerization method, epoxide compounds will react with substances containing labile hydrogen atom. Using
M. M. Bratychak, V. B. Vostres, M. J.M. Abadie   +2 more
doaj   +1 more source

Electrical conductivity of carbon nanofiber reinforced resins: potentiality of Tunneling Atomic Force Microscopy (TUNA) technique [PDF]

, 2003
Epoxy nanocomposites able to meet pressing industrial requirements in the field of structural material have been developed and characterized. Tunneling Atomic Force Microscopy (TUNA), which is able to detect ultra-low currents ranging from 80 fA to 120 ...
Raimondo1, Marialuigia, Guadagno, Liberata, Vertuccio, Luigi, Naddeo, Carlo, Barra, Giuseppina, Spinelli, Giovanni, Lamberti, Patrizia, Tucci, Vincenzo, Lafdi, Khalid   +8 more
core   +3 more sources

Comparative Analysis of the Definition of StressState of Epoxy Compoundsby Hydrostatic Shrinkage and Tenzometric Deformation

Фізика і хімія твердого тіла, 2017
The comparative analysis of definition of stress state of epoxy compounds by hydrostatic shrinkage and tensometric deformationhas been done. The results of the shrinkage coefficient depending on the selected calculation formula have been shown.Key words ...
H. O. Sirenko, M. I. Martynyuk, L. M. Soltys, I. A. Mandzyuk   +3 more
doaj   +1 more source

Studies on Epoxy Compounds

Kobunshi Kagaku, 1963
エピクロルヒドリンと, 酢酸・n-ブタノールおよびジシクロヘキシルアミンとの反応速度を種々の温度で求め, この反応の活性化エネルギーとエントロピーを求めた。反応生成物の分析と動力学的に求めた反応次数, および“Modified SN2”反応として推定されるエポキサイドの加水分解反応の活性化エントロピーと, この反応の活性化エントロピーとがかなり良く近似していることなどからエピクロルヒドリンと酢酸および酸触媒によるn-ブタノールとの反応は, さきにエポキサイドの酸触媒加水分解反応に対してP. E. Parker, N. S. Issacsが提唱した“Modified SN2”反応と同様の機構で進み, ジシクロヘキシルアミンとの反応は, N. B.
Hiroshi Kakiuchi, Yoshio Tanaka
openaire   +4 more sources