Results 271 to 280 of about 1,890,470 (317)

Structures of Novel Diselenadiazolyls

Phosphorus, Sulfur, and Silicon and the Related Elements, 2001
A series of fluorinated diselenadiazolyls (p-XC6F4CNSeSeN, X = NC, F, Cl, Br) have been synthesised and show an unusual mode of association (X = Cl, Br) in the solid state which has been investigated by Density Functional Theory. Their magnetic behaviour has also been investigated and have been shown to be essentially diamagnetic.
Neil Feeder, Robert J. Less, Jeremy M. Rawson, Fernando Palacio, Juan Novoa, Patricia Oliete   +5 more
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A Novel Structure Digital Receiver

2018
This paper studies a novel structure digital receiver to demodulate signal with large frequency offset. When the carrier frequency offset is large, the matched filter will filter out part of the in-band signal, resulting in decrease of SNR and deterioration of BER. Different from traditional receiver structure, the novel receiver put a coarse frequency
Zijian Zhang 0001, Dongxuan He, Yulei Nie   +2 more
openaire   +1 more source

Reconstruction for novel sampling structures

1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2002
We examine the problem of reconstructing a signal from periodic non-uniform samples, i.e. a uniform train from which samples are deleted in some periodic fashion. We develop a condition previously derived by Herley and Wong (see Proc. IEEE Int. Conf. Image Proc., 1996) and examine its implications.
openaire   +1 more source

A Novel Hybrid Structure for Clustering

2008
Conventional clustering methods such as k-means or subtractive clustering need some information include the optimal number of clusters, otherwise, they lead to the poor results. However in many practical situations it is often so difficult to determine the best number of clusters.
Mahdi Yazdian Dehkordi, Reza Boostani, Mohammad Tahmasebi   +2 more
openaire   +1 more source

Novel polyhydronaphthalenic structures

Tetrahedron Letters, 1981
Abstract Novel 1,7-dihydro- or 1,2,6,7-tetrahydronaphthalene derivatives were obtained from naphthalene through a polysilylation/oxidation process as well as 1,4,6,7-tetrakis(trimethylsily)naphthalene, a regiospecific precursor of 1,4,6,7-tetrafunctional naphthalenes.
Michel Laguerre, Jacques Dunoguès, Raymond Calas   +2 more
openaire   +1 more source

Structure of a novel polyimide

Journal of Polymer Science Part A-2: Polymer Physics, 1968
AbstractThe product of the thermal polymerization of ß‐carboxymethyl caprolactam has been identified as a poly[(2,6‐dioxo‐1,4‐piperidinediyl)trimethylene]. An indication of various chain conformations has been explained by the possible existence of two different conformations of the dioxopiperidine moiety.
H. K. Reimschuessel, L. G. Roldan, J. P. Sibilia   +2 more
openaire   +1 more source

Novel micromolded structures

SPIE Proceedings, 2003
Current deep trench etch systems are able to etch two micron wide features ten’s of microns deep into a silicon substrate. Conformal chemical vapor deposition (CVD) processes are readily able to fill the trenches with reasonable deposition thickness by growing from the sidewalls in.
James G. Fleming, Seethambal S. Mani, Michael S. Baker   +2 more
openaire   +1 more source

A novel structural motif and structural trees for proteins containing it

Biochemistry (Moscow), 2010
In the present study, a novel structural motif that can be represented as a combination of the known betaalphabeta-unit and psi-motif is described and analyzed. In theory, there are four possible combinations of the motifs since each of them can exist in two forms, left-handed and right-handed.
A M, Kargatov, A V, Efimov
openaire   +2 more sources

Targeting novel folds for structural genomics

Proteins: Structure, Function, and Bioinformatics, 2002
Abstract The ultimate goal of structural genomics is to obtain the structure of each protein coded by each gene within a genome to determine gene function. Because of cost and time limitations, it remains impractical to solve the structure for every gene product experimentally.
Liam J, McGuffin, David T, Jones
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A Novel Photonic Bandgap (PBG) Structure

2001 31st European Microwave Conference, 2001
A novel one-dimensional (1-D) photonic bandgap (PBG) structure for microstrip lines is proposed. This new circuit is consisting of cross-gaps and base-to-base triangles etched in the ground plane of microstrip line. The PBG structures were designed and fabricated with different dimensions.
Gorur, Adnan, Karpuz, Ceyhun, Yalcin, Kursat   +2 more
openaire   +1 more source