Perturbations of the One-Dimensional Structure in the Universe

1991 ◽  
pp. 579-580
Author(s):  
S. Bildhauer ◽  
O. Aso ◽  
M. Kasai ◽  
T. Futamase
Keyword(s):  
Dimensional Structure ◽  
One Dimensional ◽  
The One ◽  
The Universe

One-Dimensional Fluorescent Nanosized-Diamond Nanowires with Fluorescent Detection of Vitamin B12

NANO ◽  
2019 ◽  
Vol 14 (07) ◽  
pp. 1950084 ◽  
Author(s):  
Jilong Wang ◽  
Siheng Su ◽  
Jingjing Qiu ◽  
Shiren Wang
Keyword(s):  
Electron Microscopy ◽  
Photoelectron Spectroscopy ◽  
High Sensitivity ◽  
Anodic Aluminum Oxide Template ◽  
Fluorescent Detection ◽  
Dimensional Structure ◽  
Fluorescent Properties ◽  
One Dimensional ◽  
Sensitivity And Selectivity ◽  
The One

In this paper, a novel and facile method to achieve fluorescent nanosized-diamond based nanowire (NW) is reported. One-dimensional (1D) organic NW has received tremendous attention due to its superior chemical functionality and size-, shape-, and material-dependent properties. In addition, nanosized-diamond is comprehensively studied and investigated due to superior tunable fluorescent properties, cost-effectiveness, facile manufacturing and high biocompatibility. Through thermal treatment, sulfur-modified nanosized-diamond was fabricated by mixing oxidized nanosized-diamond and dibenzyl disulfide at 900∘C. Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and zeta potential were employed to characterize sulfur-modified nanosized-diamond. After that, porous anodic aluminum oxide template-assisted cathodic electrophoretic deposition method was used to achieve sulfur-modified nanosized-diamond NW. Scanning electron microscopy and transmission electron microscopy were applied to present the one-dimensional structure of the NWs. The optical properties of sulfur nanosized-diamond NW were characterized via ultraviolet-visible spectroscopy and photoluminescence spectroscopy. Finally, the as-synthesized sulfur-modified nanosized-diamond NW-based optical sensor was fabricated to detect vitamin B[Formula: see text] with high sensitivity and selectivity.

scholarly journals Optimising Matrix Product State Simulations of Shor's Algorithm

Quantum ◽  
2019 ◽  
Vol 3 ◽  
pp. 116 ◽  
Author(s):  
Aidan Dang ◽  
Charles D. Hill ◽  
Lloyd C. L. Hollenberg
Keyword(s):  
Dimensional Structure ◽  
Matrix Product ◽  
Product State ◽  
One Dimensional ◽  
Matrix Product State ◽  
Shor's Algorithm ◽  
The One ◽  
High Level ◽  
Space Requirements ◽  
Factoring Algorithm

We detail techniques to optimise high-level classical simulations of Shor's quantum factoring algorithm. Chief among these is to examine the entangling properties of the circuit and to effectively map it across the one-dimensional structure of a matrix product state. Compared to previous approaches whose space requirements depend on r, the solution to the underlying order-finding problem of Shor's algorithm, our approach depends on its factors. We performed a matrix product state simulation of a 60-qubit instance of Shor's algorithm that would otherwise be infeasible to complete without an optimised entanglement mapping.

scholarly journals Simulating the one-dimensional structure of Titan's upper atmosphere: 2. Alternative scenarios for methane escape

2010 ◽  
Vol 115 (E12) ◽  
Author(s):  
Jared M. Bell ◽  
Stephen W. Bougher ◽  
J. Hunter Waite ◽  
Aaron J. Ridley ◽  
Brian A. Magee ◽  
...  
Keyword(s):  
Upper Atmosphere ◽  
Dimensional Structure ◽  
One Dimensional ◽  
Alternative Scenarios ◽  
The One

Odhad kvality života seniorů: dotazník WHOQOL-AGE

2021 ◽  
Vol 65 (1) ◽  
pp. 60-72
Author(s):  
Lydie Tičanská ◽  
◽  
Jiří Kožený ◽  
Ladislav Csémy
Keyword(s):  
Quality Of Life ◽  
Population Sample ◽  
Dimensional Structure ◽  
Quota System ◽  
Screening Questionnaire ◽  
One Dimensional ◽  
Confirmatory Analysis ◽  
The One

Objectives. The aim of the study is to verify the structure of the WHOQOL-AGE tool on the basis of a representative group of Czech seniors older than 60 years of age. Sample and setting. The sample of participants consisted of 403 seniors (75 males, 228 females, average age 70.7 ys, SD = 7.72, range 60 – 91 ys, selected by quota system according to gender, age, and region. Results. Bifactor confirmatory analysis and the degree of agreement of data with Rasch’s model acceptably supported the one-dimensional structure of the tool and can be recommended as a screening questionnaire for estimating the quality of life of seniors older than 60 years, especially in cases where it is necessary to limit the time and cognitive burden of respondents. Study limitation. The findings are limited to a Czech general representative population sample.

The three-dimensional hydrogen-bonded structures in the ammonium and sodium salt hydrates of 4-aminophenylarsonic acid

2014 ◽  
Vol 70 (8) ◽  
pp. 738-741 ◽  
Author(s):  
Graham Smith ◽  
Urs D. Wermuth
Keyword(s):  
Hydrogen Bonding ◽  
Sodium Salt ◽  
Three Dimensional ◽  
Three Dimensions ◽  
Dimensional Structure ◽  
Water Molecules ◽  
One Dimensional ◽  
Arsanilic Acid ◽  
Hydrogen Bonding Interactions ◽  
The One

The structures of two hydrated salts of 4-aminophenylarsonic acid (p-arsanilic acid), namely ammonium 4-aminophenylarsonate monohydrate, NH4+·C6H7AsNO3−·H2O, (I), and the one-dimensional coordination polymercatena-poly[[(4-aminophenylarsonato-κO)diaquasodium]-μ-aqua], [Na(C6H7AsNO3)(H2O)3]n, (II), have been determined. In the structure of the ammonium salt, (I), the ammonium cations, arsonate anions and water molecules interact through inter-species N—H...O and arsonate and water O—H...O hydrogen bonds, giving the common two-dimensional layers lying parallel to (010). These layers are extended into three dimensions through bridging hydrogen-bonding interactions involving thepara-amine group acting both as a donor and an acceptor. In the structure of the sodium salt, (II), the Na+cation is coordinated by five O-atom donors, one from a single monodentate arsonate ligand, two from monodentate water molecules and two from bridging water molecules, giving a very distorted square-pyramidal coordination environment. The water bridges generate one-dimensional chains extending alongcand extensive interchain O—H...O and N—H...O hydrogen-bonding interactions link these chains, giving an overall three-dimensional structure. The two structures reported here are the first reported examples of salts ofp-arsanilic acid.

scholarly journals Examining Validity of the Candidate Notification Scale for Gifted Children by Mokken Scale Analysis

2020 ◽  
Vol 10 (6) ◽  
pp. 44
Author(s):  
Özge Bıkmaz Bilgen
Keyword(s):  
Factor Analysis ◽  
Item Response Theory ◽  
Confirmatory Factor Analysis ◽  
Item Response ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Gifted Children ◽  
One Dimensional ◽  
Confirmatory Factor ◽  
The One

The purpose of this study is to examine the validity of the scale for identifying gifted children, whose validity was proven by exploratory, confirmatory factor analysis, and whose reliability was proven the Cronbach alpha coefficient for identifying children in the 3-6 age group, using Mokken scaling based on nonparametric item response theory. The study group of the research consists of 253 students. As a result of the analysis of the 13-item 3-dimensional scale (above average ability, creativity and task commitment) with Monotone homogeneity Model, it is seen that a one-dimensional structure is obtained and the model fits when analyzed as a three-dimensional construct. For model data fit, when the discrimination and reliability values of the items are examined, it can be said that the one-dimensional structure of the scale is at an acceptable level, and relatively higher values are obtained for each criterion in the three-dimensional structure compared to the one-dimensional structure. Based on the findings, it can be interpreted that a parallel result was obtained in the validity study based on non-parametric item response theory of the scale, which was developed based on confirmatory factor analysis.

A new one-dimensional CdII coordination polymer incorporating 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylate)

2018 ◽  
Vol 74 (10) ◽  
pp. 1128-1132 ◽  
Author(s):  
Yan-Ju Liu ◽  
Di Cheng ◽  
Ya-Xue Li ◽  
Jun-Di Zhang ◽  
Huai-Xia Yang
Keyword(s):  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Dicarboxylic Acid ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Water Molecules ◽  
Coordination Geometry ◽  
One Dimensional ◽  
Distorted Octahedral ◽  
The One

Imidazole-4,5-dicarboxylic acid (H3IDC) and its derivatives are widely used in the preparation of new coordination polymers owing to their versatile bridging coordination modes and potential hydrogen-bonding donors and acceptors. A new one-dimensional coordination polymer, namely catena-poly[[diaquacadmium(II)]-μ3-2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylato)], [Cd(C16H6N4O8)0.5(H2O)2] n or [Cd(H2Phbidc)1/2(H2O)2] n , has been synthesized by the reaction of Cd(OAc)2·2H2O (OAc is acetate) with 2,2′-(1,2-phenylene)bis(1H-imidazole-4,5-dicarboxylic acid) (H6Phbidc) under solvothermal conditions. In the polymer, one type of Cd ion (Cd1) is six-coordinated by two N atoms and two O atoms from one H2Phbidc4− ligand and by two O atoms from two water molecules, forming a significantly distorted octahedral CdN2O4 coordination geometry. In contrast, the other type of Cd ion (Cd2) is six-coordinated by two N atoms and two O atoms from two symmetry-related H2Phbidc4− ligands and by two O atoms from two symmetry-related water molecules, leading to a more regular octahedral coordination geometry. The Cd1 and Cd2 ions are linked by H2Phbidc4− ligands into a one-dimensional chain which runs parallel to the b axis. In the crystal, the one-dimensional chains are connected through hydrogen bonds, generating a two-dimensional layered structure parallel to the ab plane. Adjacent layers are further linked by hydrogen bonds, forming a three-dimensional structure in the solid state.

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