From a Two-Dimensional Supramolecular Network to One-Dimensional Covalent Polymer at the Liquid/Solid Interface: Insight into the Role of the Stoichiometric Ratio of the Precursors

2017 ◽  
Vol 121 (1) ◽  
pp. 593-599 ◽  
Author(s):  
Yanxia Yu ◽  
Yali Zheng ◽  
Shengbin Lei
Keyword(s):  
Supramolecular Network ◽  
Stoichiometric Ratio ◽  
Two Dimensional ◽  
One Dimensional ◽  
Solid Interface ◽  
Insight Into

Cyano-Functionalized Porphyrins on Cu(111) from One-Dimensional Wires to Two-Dimensional Molecular Frameworks: On the Role of Co-Deposited Metal Atoms

2020 ◽  
Vol 32 (5) ◽  
pp. 2114-2122
Author(s):  
Alisson Ceccatto dos Santos ◽  
Rodrigo Cezar de Campos Ferreira ◽  
Juan Carlos Moreno-López ◽  
Lucas Barreto ◽  
Michael Lepper ◽  
...  
Keyword(s):  
Two Dimensional ◽  
One Dimensional ◽  
Metal Atoms ◽  
Deposited Metal

scholarly journals Wake and wave resistance on viscous thin films

2016 ◽  
Vol 792 ◽  
pp. 829-849 ◽  
Author(s):  
René Ledesma-Alonso ◽  
Michael Benzaquen ◽  
Thomas Salez ◽  
Elie Raphaël
Keyword(s):  
Pressure Field ◽  
Finite Size ◽  
External Source ◽  
External Pressure ◽  
Wave Resistance ◽  
Two Dimensional ◽  
Pressure Source ◽  
One Dimensional ◽  
Speed Up

The effect of an external pressure disturbance, being displaced with a constant speed along the free surface of a viscous thin film, is studied theoretically in the lubrication approximation in one- and two-dimensional geometries. In the comoving frame, the imposed pressure field creates a stationary deformation of the interface – a wake – that spatially vanishes in the far region. The shape of the wake and the way it vanishes depend on both the speed and size of the external source and the properties of the film. The wave resistance, namely the force that has to be externally furnished in order to maintain the wake, is analysed in detail. For finite-size pressure disturbances, it increases with the speed, up to a certain transition value, above which a monotonic decrease occurs. The role of the horizontal extent of the pressure field is studied as well, revealing that for a smaller disturbance the latter transition occurs at a higher speed. Eventually, for a Dirac pressure source, the wave resistance either saturates for a one-dimensional geometry, or diverges for a two-dimensional geometry.

The two-dimensional coordination polymer poly[diaqua(μ2-1H-imidazo[4,5-f][1,10]phenanthroline)-μ4-sulfato-μ3-sulfato-dicadmium(II)]

2014 ◽  
Vol 70 (8) ◽  
pp. 770-772 ◽  
Author(s):  
Xiao-Min Hao ◽  
Gang Chen ◽  
Chang-Sheng Gu ◽  
Ji-Wei Liu
Keyword(s):  
Coordination Polymer ◽  
Three Dimensional ◽  
Supramolecular Network ◽  
Two Dimensional ◽  
Coordination Environment ◽  
One Dimensional ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Trigonal Prismatic ◽  
Distorted Octahedral Coordination Environment

In the title coordination polymer, [Cd2(SO4)2(C13H8N4)(H2O)2]n, there are two crystallographically independent CdIIcentres with different coordination geometries. The first CdIIcentre is hexacoordinated by four O atoms of four sulfate ligands, one water O atom and one N atom of a 1H-imidazo[4,5-f][1,10]phenanthroline (IP) ligand, giving a distorted octahedral coordination environment. The second CdIIcentre is heptacoordinated by four O atoms of three sulfate ligands, one water O atom and two N atoms of one chelating IP ligand, resulting in a distorted monocappedanti-trigonal prismatic geometry. The symmetry-independent CdIIions are bridged in an alternating fashion by sulfate ligands, forming one-dimensional ladder-like chains which are connected through the IP ligands to form two-dimensional layers. These two-dimensional layers are linked by interlayer hydrogen bonds, leading to the formation of a three-dimensional supramolecular network.

ON BEHAVIORS OF TWO-DIMENSIONAL ENDOMORPHISMS: ROLE OF THE CRITICAL CURVES

1993 ◽  
Vol 03 (01) ◽  
pp. 187-194 ◽  
Author(s):  
CHRISTIAN MIRA ◽  
TONY NARAYANINSAMY
Keyword(s):  
Critical Points ◽  
Two Dimensional ◽  
One Dimensional ◽  
Critical Curves ◽  
Dynamical Properties

Critical curves are the natural two-dimensional extension of the notion of critical points in one-dimensional endomorphisms. They play a fundamental role in determining the dynamical properties and their bifurcations. This letter demonstrates such a role for two new behaviors.

Ostwald ripening of droplets: The role of migration

2009 ◽  
Vol 20 (1) ◽  
pp. 1-67 ◽  
Author(s):  
KARL GLASNER ◽  
FELIX OTTO ◽  
TOBIAS RUMP ◽  
DEJAN SLEPČEV
Keyword(s):  
Thin Films ◽  
Mass Exchange ◽  
Ostwald Ripening ◽  
Precursor Film ◽  
Collapse Mechanism ◽  
Two Dimensional ◽  
Liquid Droplets ◽  
Single Droplet ◽  
One Dimensional

A configuration of near-equilibrium liquid droplets sitting on a precursor film which wets the entire substrate can coarsen in time by two different mechanisms: collapse or collision of droplets. The collapse mechanism, i.e., a larger droplet grows at the expense of a smaller one by mass exchange through the precursor film, is also known as Ostwald ripening. As was shown by K. B. Glasner and T. P. Witelski (‘Collision versus collapse of droplets in coarsening of dewetting thin films’, Phys. D209 (1–4), 2005, 80–104) in case of a one-dimensional substrate, the migration of droplets may interfere with Ostwald ripening: The configuration can coarsen by collision rather than by collapse. We study the role of migration in a two-dimensional substrate for a whole range of mobilities. We characterize the velocity of a single droplet immersed into an environment with constant flux field far away. This allows us to describe the dynamics of a droplet configuration on a two-dimensional substrate by a system of ODEs. In particular, we find by heuristic arguments that collision can be a relevant coarsening mechanism.

Imaging Transfer Devices Operated by PSD Mode a-Si P-I-N Junctions

1989 ◽  
Vol 149 ◽  
Author(s):  
M. Yamaguchi ◽  
S. Murakami ◽  
S. Todo ◽  
Y. Tawada
Keyword(s):  
Image Sensor ◽  
Two Dimensional ◽  
Key Factors ◽  
Large Area ◽  
One Dimensional ◽  
Display Devices ◽  
Advantages And Disadvantages ◽  
Position Sensitive ◽  
Deposition Techniques

ABSTRACTTwo types of position sensitive device (PSD) using a-Si:H thin films have been developed. One has been produced by large area plasma CVD, with usual metal deposition techniques. The other is the application of a linear image sensor as a one dimensional position sensor. There are some advantages and disadvantages in these two types of position sensitive device. Resolution of the linear image sensor is limited by the size of the elements and the pitch; in contrast, uniformity of the electrodes on the p-i-n diode and thickness of the a-Si thin film are the key factors for the resolution of one and two dimensional analogue PSDs.The analogue PSD is applicable to a digitizer which takes the role of a man-machine (computer) interface. The large area two dimensional digitizer was fabricated using the same technique as large area solar cell production, and was shown to be useful as a drawing tool on a CRT or other display devices with the aid of a micro-computer.

scholarly journals The impact of mind-body awareness training on the early learning of a brain-computer interface

TECHNOLOGY ◽  
2014 ◽  
Vol 02 (03) ◽  
pp. 254-260 ◽  
Author(s):  
Kaitlin Cassady ◽  
Albert You ◽  
Alex Doud ◽  
Bin He
Keyword(s):  
Human Subjects ◽  
Brain Computer Interface ◽  
Body Awareness ◽  
Computer Interface ◽  
Awareness Training ◽  
One Dimensional ◽  
The Impact ◽  
Insight Into ◽  
Bci System

Brain-computer interface (BCI) systems allow users to interact with their environment by bypassing muscular control to tap directly into the users' thoughts. In the present study, we investigate the role of prior experience with yoga and meditation, examples of formalized mind-body awareness training (MBAT), in learning to use a one-dimensional sensorimotor rhythm based BCI. Thirty-six human subjects volunteered to participate in two different cohorts based on past experience with MBAT — experienced MBAT practitioners and controls. All subjects participated in three BCI experiments to achieve competency in controlling the BCI system. The MBAT cohort achieved BCI competency significantly faster than the control cohort. In addition, the MBAT cohort demonstrated enhanced ability to control the system on various measures of BCI performance and improved significantly more over time when compared to control. Our work provides insight into valuable strategies for reducing barriers to BCI fluency that limit the more widespread use of these systems.

Solids Conveying in a Single Screw Extruder; the Rôle of Gravity Forces

1973 ◽  
Vol 15 (2) ◽  
pp. 114-122 ◽  
Author(s):  
J. G. A. Lovegrove ◽  
J. G. Williams
Keyword(s):  
Theoretical Analysis ◽  
Two Dimensional ◽  
Screw Extruder ◽  
Dimensional Solution ◽  
One Dimensional ◽  
Single Screw ◽  
Gravity Forces ◽  
Single Screw Extruder ◽  
Dimensional Version

A theoretical analysis is given which illustrates the rôle of gravity forces in solids conveying. A one-dimensional solution for flow in an extruder channel is used to investigate the nature of the solution and a more precise, two-dimensional, version is then developed.

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