Претраживање
Приказ резултата 1-10 од 2534
Coordinating Benzenes Stack Stronger than Noncoordinating Benzenes, even at Large Horizontal Displacements
(American Chemical Society (ACS), 2016)
Stacking interactions between two benzene molecules that coordinate transition metal ions within organometallic sandwich and half-sandwich compounds were investigated by performing Cambridge Structural Database (CSD) search ...
A new class of electromagnetically coupled printed antenna arrays
(Udruženje za mikrotalasnu tehniku i tehnologiju i IEEE MTT-S Chapter-a Srbije, Beograd, 2003)
We report a new class of electromagnetically coupled microwave printed antenna arrays using three coplanar strip-TCS (CPW with finite narrow ground strips). Two versions of this antenna array are introduced. (1) Antenna ...
Non-toxic poly(vinyl alcohol)/clay composites as electrode material for detection of 4-chlorophenol and 4-nitrophenol
(Elsevier, 2019)
Development of new electrode materials is necessary for the fabrication of sensors with low detection limits, high sensitivity and broad concentration range. Beside analytical parameters, the ability to replace rare and ...
Reactions of transition metal carbonyl anions with 2-(1-bromoalkylidene)thiazolidin-4-ones: halogenophilic attack or deprotonation
(Oxford : Pergamon-Elsevier Science Ltd, 2011)
Bromophilic attack by the transition metal carbonyl anion, [Re(CO)(5)]Na (pK(a) = 21.1), on 2-(1-bromoalkylidene)thiazolidin-4-ones is significantly faster than abstraction of an acidic lactam hydrogen (pK(a) similar to ...
Further degradation product of hyperforin from Hypericum perforatum (St. John's Wort)
(Elsevier, 2003)
Repeated examination of the aerial parts of Hypericum Perfomtum yielded a new degradation product of hyperforin (1) namely deoxyfurohyperforin A (2), together with the previously identified furohyperforin (3), furoadhyperforin ...
An analysis of elementary processes of water desorption from zeolites of type aPart. I. Zeolites with monovalent counterions: undefined
(Elsevier, 1976)
Complex DSC curves of water desorption from LiA, NaA and KA zeolites were resolved into the most probable elementary curves. The activation energies and transition temperatures of corresponding elementary processes were ...
A linker of the proline-threonine repeatingmotif sequence is bimodal
(Springer Nature Switzerland AG 2020, 2020)
The linker of the endoglucanase from Xanthomonas campestris pv. campestris ((PT)12) has a specific sequence, a repeating proline-threonine motif. In order to understand its role, it has been compared to a regular sequence ...
The electrochemical reduction of trinitrotoluene on a platinum wire modified by chemisorbed acetonitrile
(Elsevier, 2010)
The electrochemical reduction of 2,4,6-trinitrotoluene (TNT) was investigated by cyclic voltammetry on a platinum electrode in aqueous sodium chloride solutions with acetonitrile containing different concentrations of TNT. ...
Polarization curves in the ohmic controlled electrodeposition of metals
(Oxford : Pergamon-Elsevier Science Ltd, 2009)
The conditions under which ohmic controlled metal electrodeposition occurs are discussed using a simple mathematical model. it is shown that ohmic controlled electrodeposition can be operative if the value of the exchange ...
Photodiode quantum efficiency optimization using spherical pits on active surfaces
(Elsevier, 1995)
A numerical model of a photodiode with etched spherical pits on an active surface has been developed. Several geometrical parameters (radius of curvature, depth and arrangement of spherical pits, sample thickness and area, ...