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137 Results Found

  • Article
  • Open Access
28 Citations
5,385 Views
19 Pages

Numerical Study on Thermal Hydraulic Performance of Supercritical LNG in Zigzag-Type Channel PCHEs

  • Zhongchao Zhao,
  • Yimeng Zhou,
  • Xiaolong Ma,
  • Xudong Chen,
  • Shilin Li and
  • Shan Yang

11 February 2019

In this paper, we study a promising plate-type heat exchanger, the printed circuit heat exchanger (PCHE), which has high compactness and is suitable for high-pressure conditions as a vaporizer during vaporization. The thermal hydraulic performance of...

  • Article
  • Open Access
10 Citations
3,215 Views
17 Pages

24 September 2020

Charged magnetic domain walls have been visualized in soft magnetic nanostructured Fe thin films under both static and dynamic conditions. A transition in the core of these zigzagged magnetic walls from Néel-type to Bloch-type through the form...

  • Article
  • Open Access
15 Citations
2,702 Views
18 Pages

17 November 2023

Lithium-Ion Battery (LIB) manufacturers produce different cell formats (prismatic, cylindrical, pouch, etc.) with different casing materials (steel or aluminium) and cell chemistries (e.g., NMC, NCA, LFP, etc.) for application in electric vehicles. B...

  • Communication
  • Open Access
1 Citations
2,904 Views
6 Pages

Fe Atom—Mixed Edges Fractal Graphene via DFT Calculation

  • Lobna Aloui,
  • Thierry Dintzer and
  • Izabela Janowska

The stability of small fractal graphene models with two different symmetries and Fe atoms at their mixed edges is addressed by density functional theory (DFT) calculations. Four kinds of edge configurations and Fe atom localizations are determined de...

  • Article
  • Open Access
1 Citations
2,440 Views
24 Pages

28 February 2023

The present study focused on the analysis of a new geometrical modification of the conventional zig-zag channel for Printed Circuit Heat Exchangers. The research was carried out using OpenFOAM and Salome software, which were used for the CFD analysis...

  • Article
  • Open Access
2,652 Views
17 Pages

Computational Fluid Dynamics-Based Simulation of Ventilation in a Zigzag Plastic Greenhouse

  • Yu Zhang,
  • Weizhen Sun,
  • Longpeng Jin,
  • Hongbing Yang,
  • Jian Wang and
  • Sheng Shu

Zigzag plastic greenhouses are a type of greenhouse with a high natural ventilation capacity, and the number and quantities of their roof vents affect their ventilation and cooling effect. In this study, a CFD model of a greenhouse was constructed ba...

  • Article
  • Open Access
1,668 Views
8 Pages

19 December 2024

The mechanism of carbon nanotube unzipping on a Cu(111) surface was investigated using density functional theory calculations. Optimized structures of armchair and zigzag carbon nanotubes of various sizes were considered, and their energies were comp...

  • Article
  • Open Access
3 Citations
2,301 Views
14 Pages

Diameter-Change-Induced Transition in Buckling Modes of Defective Zigzag Carbon Nanotubes

  • Yoshitaka Umeno,
  • Atsushi Kubo,
  • Chutian Wang and
  • Hiroyuki Shima

29 July 2022

In general, the insertion of Stone-Wales (SW) defects into single-walled carbon nanotubes (SWNTs) reduces the buckling resistance of SWNTs under axial compression. The magnitude of reduction is more noticeable in zigzag-type SWNTs than armchair- or c...

  • Article
  • Open Access
3,811 Views
10 Pages

Zigzag Solitons and Spontaneous Symmetry Breaking in Discrete Rabi Lattices with Long-Range Hopping

  • Haitao Xu,
  • Zhelang Pan,
  • Zhihuan Luo,
  • Yan Liu,
  • Suiyan Tan,
  • Zhijie Mai and
  • Jun Xu

12 July 2018

A new type of discrete soliton, which we call zigzag solitons, is founded in two-component discrete Rabi lattices with long-range hopping. The spontaneous symmetry breaking (SSB) of zigzag solitons is also studied. Through numerical simulation, we fo...

  • Article
  • Open Access
10 Citations
5,990 Views
10 Pages

The mechanical properties of silicene nanostructures subject to tensile loading were studied via a molecular dynamics (MD) simulation. The effects of temperature on Young’s modulus and the fracture strain of silicene with armchair and zigzag types we...

  • Article
  • Open Access
1,656 Views
9 Pages

29 February 2024

Based on two-dimensional green phosphorene, we designed two molecular electronic devices with zigzag (Type 1) and whisker-like (Type 2) configurations. By combining density functional theory (DFT) and non-equilibrium Green’s function (NEGF), we...

  • Article
  • Open Access
954 Views
22 Pages

26 August 2025

Tomicus pilifer is a major pest that threatens Pinus koraiensis forests in the northeast region of China. In this study, we employed scanning electron microscopy (SEM) to observe the sensilla on the antennae, mouthparts, and legs of both male and fem...

  • Article
  • Open Access
18 Citations
5,678 Views
13 Pages

Using Zigzag Persistent Homology to Detect Hopf Bifurcations in Dynamical Systems

  • Sarah Tymochko,
  • Elizabeth Munch and
  • Firas A. Khasawneh

31 October 2020

Bifurcations in dynamical systems characterize qualitative changes in the system behavior. Therefore, their detection is important because they can signal the transition from normal system operation to imminent failure. In an experimental setting, th...

  • Article
  • Open Access
1 Citations
5,117 Views
13 Pages

Channel Shape Effects on Device Instability of Amorphous Indium–Gallium–Zinc Oxide Thin Film Transistors

  • Seung Gi Seo,
  • Seung Jae Yu,
  • Seung Yeob Kim,
  • Jinheon Jeong and
  • Sung Hun Jin

22 December 2020

Channel shape dependency on device instability for amorphous indium–gallium–zinc oxide (a-IGZO) thin film transistors (TFTs) is investigated by using various channel shape devices along with systematic electrical characterization includin...

  • Article
  • Open Access
2 Citations
2,311 Views
19 Pages

4 September 2024

Graphene nanoribbons (GNRs), categorized into zigzag and armchair types, hold significant promise in electronics due to their unique properties. In this study, optical properties of zigzag and armchair GNRs are investigated using density functional t...

  • Article
  • Open Access
7 Citations
4,206 Views
12 Pages

26 January 2019

Using first principles calculations, we explored the magnetic and optical properties of chromium(III) iodide (CrI3) nanotubes (NTs) by changing their chirality and diameter. Here, we considered six types of NTs: (5,0), (5,5), (7,0), (10,0), (10,10),...

  • Article
  • Open Access
18 Citations
11,151 Views
16 Pages

Investigating the Impact of Shifting the Brick Kiln Industry from Conventional to Zigzag Technology for a Sustainable Environment

  • Zain Bashir,
  • Muhammad Amjad,
  • Syed Farhan Raza,
  • Shafiq Ahmad,
  • Mali Abdollahian and
  • Muhammad Farooq

19 May 2023

The brick kiln industry is one of the largest and most highly unregulated industrial sectors in developing countries. Most of the kilns use low-quality coal as primary fuel along with small quantities of bagasse, rice husk, and wooden chips. As a res...

  • Article
  • Open Access
3 Citations
2,762 Views
15 Pages

19 October 2023

The maneuverability performance of a KCS with energy-saving devices was investigated. A bulb-type wavy rudder and an asymmetric pre-swirl stator were used as energy-saving devices because their use resulted in considerable efficiency gain. A validate...

  • Article
  • Open Access
638 Views
13 Pages

14 October 2025

Flat-panel-type light field displays can generate three-dimensional images viewable without glasses; however, they often suffer from a narrow viewing zone, low light efficiency, low resolution, and moiré artifacts. Previously, flat-panel-type...

  • Article
  • Open Access
4 Citations
5,753 Views
7 Pages

The interface friction characteristics of double-walled carbon nanotubes (DWCNTs) are studied using molecular dynamics simulations based on the Tersoff potential. The effects of the DWCNT type, outer shell diameter, and temperature are evaluated. The...

  • Article
  • Open Access
3 Citations
2,529 Views
11 Pages

13 May 2022

Based on first-principles calculations, we design a α-AsP/γ-AsP homojunction with minimum lattice distortion. It is found that the α-AsP/γ-AsP homojunction has an indirect bandgap with an intrinsic type-II band alignment. The proposed α-AsP/γ-AsP hom...

  • Article
  • Open Access
17 Citations
6,798 Views
11 Pages

13 November 2017

The new three-dimensional structure that the graphene connected with SWCNTs (G-CNTs, Graphene Single-Walled Carbon Nanotubes) can solve graphene and CNTs′ problems. A comprehensive study of the mechanical and electrical performance of the junctions w...

  • Article
  • Open Access
10 Citations
3,682 Views
16 Pages

13 March 2022

The zigzag channel is the uppermost channel type of an industrial printed circuit heat exchanger (PCHE). The effect of geometric properties on the flow and heat transfer performance of the channel is significant to the PCHE design and optimization. N...

  • Article
  • Open Access
1 Citations
3,837 Views
11 Pages

Magnetostructural Studies on Zigzag One-Dimensional Coordination Polymers Formed by Tetraamidatodiruthenium(II,III) Paddlewheel Units Bridged by SCN Ligands

  • Sara Moreno-Da Silva,
  • Patricia Delgado-Martínez,
  • Miguel Cortijo,
  • Rodrigo González-Prieto,
  • José Luis Priego,
  • Santiago Herrero and
  • Reyes Jiménez-Aparicio

We report herein on three zigzag one-dimensional coordination polymers of {[Ru2(μ-NHOCR)4](μ-SCN)}n (R = o-Me-C6H4 (2), m-Me-C6H4 (3), p-Me-C6H4 (4)) formula. These new compounds have been obtained by reaction of the corresponding [Ru2(μ-NHO...

  • Article
  • Open Access
8 Citations
3,079 Views
19 Pages

13 December 2021

Recent experimental studies proved the presence of the triplet spin state in atomically precise heptauthrene nanostructure of nanographene type (composed of two interconnected triangles with zigzag edge). In the paper, we report the computational stu...

  • Article
  • Open Access
359 Views
31 Pages

28 December 2025

Effective thermal management is critical for sustaining the performance, durability, and stability of a proton exchange membrane fuel cell (PEMFC). A thorough numerical investigation of six multi-fin zigzag cooling-channel geometries operating under...

  • Article
  • Open Access
8 Citations
3,617 Views
18 Pages

The aboveground parts of Trifolium medium L. (zigzag clover), a little-known representative of the family Fabaceae, collected during flowering in a wild stand (Sławin-Szerokie district, Lublin, Poland), were used in this study. Our previous inve...

  • Article
  • Open Access
10 Citations
3,367 Views
16 Pages

Structural Stability and Electronic Properties of Boron Phosphide Nanotubes: A Density Functional Theory Perspective

  • Dolores García-Toral,
  • Raúl Mendoza-Báez,
  • Ernesto Chigo-Anota,
  • Antonio Flores-Riveros,
  • Víctor M. Vázquez-Báez,
  • Gregorio Hernández Cocoletzi and
  • Juan Francisco Rivas-Silva

9 May 2022

Based on the Density Functional Theory (DFT) calculations, we analyze the structural and electronic properties of boron phosphide nanotubes (BPNTs) as functions of chirality. The DFT calculations are performed using the M06-2X method in conjunction w...

  • Article
  • Open Access
15 Citations
6,389 Views
12 Pages

30 October 2018

Recently, a project was initiated in Japan to transport a large amount of liquid hydrogen (LH2) from Australia to Japan by sea. It is important to understand the sloshing and boil-off that are likely to occur inside an LH2 tank during marine transpor...

  • Article
  • Open Access
16 Citations
3,979 Views
11 Pages

Monolayer SnI2: An Excellent p-Type Thermoelectric Material with Ultralow Lattice Thermal Conductivity

  • Qing-Yu Xie,
  • Peng-Fei Liu,
  • Jiang-Jiang Ma,
  • Fang-Guang Kuang,
  • Kai-Wang Zhang and
  • Bao-Tian Wang

26 April 2022

Using density functional theory and semiclassical Boltzmann transport equation, the lattice thermal conductivity and electronic transport performance of monolayer SnI2 were systematically investigated. The results show that its room temperature latti...

  • Article
  • Open Access
11 Citations
3,477 Views
18 Pages

1 February 2021

In this study, a strain gauge sensor based on a change of contact or network structure between conductive materials was implemented using the handle-machine embroidery technique, and the variables (embroidery shape, embroidery distance, embroidery si...

  • Short Note
  • Open Access
1 Citations
1,289 Views
5 Pages

5,10-Diiododibenzo[a,e]pentalene

  • Natsumi Ohara,
  • Chinatsu Ogiwara and
  • Takuya Kuwabara

10 December 2024

The crystal structure and the improved synthesis of the title compound (1) are presented. Treatment of 5,10-disilyldibenzo[a,e]pentalenes (2a and 2b) with iodine chloride (ICl) readily provided 1 in good yields. Recrystallization from a dichlorometha...

  • Article
  • Open Access
9 Citations
10,556 Views
19 Pages

13 July 2021

This study aimed to establish an automatic sewing process for garment production according to textile properties. An automatic feeding system and a self-made template were introduced to an industrial sewing machine. Two types of stitches were perform...

  • Article
  • Open Access
8 Citations
2,876 Views
21 Pages

16 September 2022

The excellent thermophysical properties of supercritical CO2 (sCO2) close to the pseudocritical point make it possible to replace water as the coolant of microchannels in application of a high heat flux radiator. The computational fluid dynamics (CFD...

  • Article
  • Open Access
10 Citations
3,817 Views
15 Pages

22 January 2024

Due to their unique properties, carbon nanotubes (CNTs) are finding a growing number of applications across multiple industrial sectors. These properties of CNTs are subject to influence by numerous factors, including the specific chiral structure, l...

  • Short Note
  • Open Access
3 Citations
2,966 Views
5 Pages

Bis(pyrazol-1-yl)methane-4,4′-dicarboxylic Acid

  • Elizaveta A. Pershina,
  • Dmitry I. Pavlov,
  • Nikita P. Burlutskiy and
  • Andrei S. Potapov

22 November 2021

The molecular structure of bis(pyrazol-1-yl)methane-4,4′-dicarboxylic acid (H2bpmdc) was determined by single crystal X-Ray diffraction analysis. The compound crystallizes in a monoclinic crystal system; the unit cell contains four formula unit...

  • Article
  • Open Access
2,245 Views
17 Pages

An Improved C0 FE Model for the Sandwich Lattice Composite Panel

  • Junqing Hong,
  • Chunyan Shen,
  • Weiqing Liu,
  • Hai Fang and
  • Laiyun Yang

30 November 2021

Combining the improved C0 plate element using high-order zigzag theories and the beam element degenerated from the plate element, a type of analysis model for the sandwich lattice composite panel was developed. Compared with the actual test results i...

  • Article
  • Open Access
1 Citations
7,294 Views
10 Pages

27 December 2010

Flexible and asymmetric ligand L [L = 1-((pyridin-3-yl)methyl)-1H-benzotriazole], is used as a basic backbone to construct complicated metal-organic frameworks. Two new polymers, namely, [Ag2(L)2(NO3)2]n (1) and [Ag(L)(ClO4)]n (2), were synthesized a...

  • Article
  • Open Access
5 Citations
2,651 Views
11 Pages

Molecular Cocrystals with Hydrogen-Bonded Polymeric Structures and Polarized Luminescence

  • Jing-Yi Zhao,
  • Fa-Feng Xu,
  • Zhong-Qiu Li,
  • Zhong-Liang Gong,
  • Yu-Wu Zhong and
  • Jiannian Yao

17 October 2022

Crystalline materials with appealing luminescent properties are attractive materials for various optoelectronic applications. The in situ bicomponent reaction of 1,2-ethylenedisulfonic acid with 1,4-di(pyrid-2-yl)benzene, 1,4-di(pyrid-3-yl)benzene, o...

  • Article
  • Open Access
2 Citations
1,951 Views
12 Pages

29 October 2024

The magnetic toroidal dipole moment, which is induced by a vortex-type spin texture, manifests itself in parity-breaking physical phenomena, such as a linear magnetoelectric effect and nonreciprocal transport. We elucidate that a staggered alignment...

  • Article
  • Open Access
404 Views
10 Pages

Topological Phase Transition by Tuning Central Unit in C3 Symmetric Lattice of Terahertz Photonic Crystals

  • Zhigang Yan,
  • Kangrong Deng,
  • Shuangjie Song,
  • Tingting Liu,
  • Jinhui Cai,
  • Le Zhang and
  • Bo Fang

19 November 2025

A terahertz band-switchable photonic topological insulator (PTI) composed of a C3-symmetric rod-type photonic crystal is designed. By tuning the size of the central cylinder in the lattice, a topological phase transition can occur in the PTI, and the...

  • Article
  • Open Access
4 Citations
2,951 Views
17 Pages

Deep CNN-Based Planthopper Classification Using a High-Density Image Dataset

  • Mohd Firdaus Ibrahim,
  • Siti Khairunniza-Bejo,
  • Marsyita Hanafi,
  • Mahirah Jahari,
  • Fathinul Syahir Ahmad Saad and
  • Mohammad Aufa Mhd Bookeri

Rice serves as the primary food source for nearly half of the global population, with Asia accounting for approximately 90% of rice production worldwide. However, rice farming faces significant losses due to pest attacks. To prevent pest infestations...

  • Article
  • Open Access
1,420 Views
18 Pages

28 August 2024

To solve the problem of the large size of traditional industrial frequency phase-shift transformers and the harmonic distortion of multi-pulse wave rectifier systems, this paper proposes a three-stage shunt zigzag power electronic phase-shift transfo...

  • Article
  • Open Access
2 Citations
2,272 Views
14 Pages

Topological Edge States on Different Domain Walls of Two Opposed Helical Waveguide Arrays

  • Junying Wang,
  • Zhiwei Shi,
  • Xifeng Ji,
  • Yajing Zhang,
  • Huagang Li,
  • Yaohua Deng and
  • Kang Xie

31 October 2023

Floquet topological insulators (FTIs) have richer topological properties than static systems. In this work, we designed different domain wall (DW) structures consisting of a Floquet photonic lattice with opposite helical directions. We investigated t...

  • Article
  • Open Access
8 Citations
6,023 Views
13 Pages

Synthesis of Ru2Br(μ-O2CC6H4R)4 (R = o-Me, m-Me, p-Me) Using Microwave Activation: Structural and Magnetic Properties

  • Patricia Delgado-Martínez,
  • Alejandra Elvira-Bravo,
  • Rodrigo González-Prieto,
  • José L. Priego,
  • Reyes Jimenez-Aparicio and
  • M. Rosario Torres

3 September 2014

New bromidotetracarboxylatodiruthenium(II,III) compounds of the type [Ru2Br(μ-O2CC6H4–R)4]n [R = o-Me (1), m-Me (2), p-Me (3)] have been prepared using microwave-assisted methods. Syntheses by means of solvothermal and conventional activations have a...

  • Review
  • Open Access
14 Citations
9,564 Views
49 Pages

21 May 2013

4,4′-Dithiodipyridine (dtdp), also termed 4,4′-dipyridyldisulfide, is a bridging ligand of the 4,4′-bipyridine type. The introduction of the disulfide moiety inevitably leads to a relatively rigid angular structure, which exhibits axial chirality. Mo...

  • Article
  • Open Access
13 Citations
3,379 Views
12 Pages

Synthesis and Structural Characterization of a Silver(I) Pyrazolato Coordination Polymer

  • Kiyoshi Fujisawa,
  • Takuya Nemoto,
  • Yui Morishima and
  • Daniel B. Leznoff

15 February 2021

Coinage metal(I)···metal(I) interactions are widely of interest in fields such as supramolecular assembly and unique luminescent properties, etc. Only two types of polynuclear silver(I) pyrazolato complexes have been reported, however, and no detaile...

  • Article
  • Open Access
8 Citations
2,779 Views
21 Pages

18 May 2024

This paper addresses the increasing demand for computing power and the challenges associated with adding more core units to a computer processor. It explores the utilization of System-on-Chip (SoC) technology, which integrates Terahertz (THz) wave co...

  • Article
  • Open Access
4 Citations
2,742 Views
19 Pages

Shear Strengthening of RC Beams Using Fabric-Reinforced Cementitious Matrix, Carbon Plates, and 3D-Printed Strips

  • Yasmin Zuhair Murad,
  • Hanady Al-Mahmood,
  • Ahmad Tarawneh,
  • Ahmad J. Aljaafreh,
  • Ayoub AlMashaqbeh,
  • Raghad Abdel Hadi and
  • Rund Shabbar

28 February 2023

Existing reinforced concrete (RC) structures suffer from degradation in their structural capacity. These structures require strengthening and retrofitting to integrate sustainability and improve their serviceability and durability. RC members strengt...

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