Micromachines

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Quantitative Analysis to the Impacts of IMU Quality in GPS/INS Deep Integration
Micromachines - Tập 6 Số 8 - Trang 1082-1099
Xiaoji Niu, Yalong Ban, Quan Zhang, Tisheng Zhang, Hongping Zhang, Jingnan Liu
In the Global Positioning System (GPS)/Inertial Navigation System (INS) deep integration system, the pure negative effect of the INS aiding is mainly the INS navigation error that is independent with the motion dynamics, which determine whether the INS aiding is worthy. This paper quantitatively assesses the negative effects of the inertial aiding information from different grades of INS by modeli... hiện toàn bộ
Modeling and Quantitative Analysis of GNSS/INS Deep Integration Tracking Loops in High Dynamics
Micromachines - Tập 8 Số 9 - Trang 272
Yalong Ban, Xiaoji Niu, Tisheng Zhang, Quan Zhang, Jingnan Liu
To meet the requirements of global navigation satellite systems (GNSS) precision applications in high dynamics, this paper describes a study on the carrier phase tracking technology of the GNSS/inertial navigation system (INS) deep integration system. The error propagation models of INS-aided carrier tracking loops are modeled in detail in high dynamics. Additionally, quantitative analysis of carr... hiện toàn bộ
Liquid Cladding Mediated Optical Fiber Sensors for Copper Ion Detection
Micromachines - Tập 9 Số 9 - Trang 471
Vien Thi Tran, Nhu Hoa Thi Tran, Than Thi Nguyen, Won Jung Yoon, Heongkyu Ju
We present a label-free optical fiber based sensor device to detect copper ions (Cu2+) in water. A multimode optical fiber, with its polymer cladding removed along a 1-cm length, is used for the optical sensor head, where the injected Cu2+ in the liquid phase acts as a liquid cladding for the optical mode. The various Cu2+ concentrations modulate the numerical aperture (NA) of the liquid cladding ... hiện toàn bộ
Fabrication of ZnO@Ag@Ag3PO4 Ternary Heterojunction: Superhydrophilic Properties, Antireflection and Photocatalytic Properties
Micromachines - Tập 11 Số 3 - Trang 309
Huan Huan, Gongfa Li, Yijun Tang, Xin Li, Zao Yi, Xiang Gao, Xifang Chen, Jian Chen, Pinghui Wu
A ZnO seed layer was formed on the fluorine-doped tin oxide substrate by magnetron sputtering, and then a ZnO nanorod was grown on the ZnO seed layer by a hydrothermal method. Next, we prepared a single-crystal Ag seed layer by magnetron sputtering to form a ZnO@Ag composite heterostructure. Finally, Ag3PO4 crystals were grown on the Ag seed layer by a stepwise deposition method to obtain a ZnO@Ag... hiện toàn bộ
Study of Inkjet-Printed Silver Films Based on Nanoparticles and Metal-Organic Decomposition Inks with Different Curing Methods
Micromachines - Tập 11 Số 7 - Trang 677
Peng Xiao, Yicong Zhou, Liao Gan, Zhipeng Pan, Jianwen Chen, Dongxiang Luo, Rihui Yao, Jianqiu Chen, Hongfu Liang, Honglong Ning
Currently, inkjet printing conductive films have attracted more and more attention in the field of electronic device. Here, the inkjet-printed silver thin films based on nanoparticles (NP) ink and metal-organic decomposition (MOD) ink were cured by the UV curing method and heat curing method. We not only compared the electrical resistivity and adhesion strength of two types of silver films, but al... hiện toàn bộ
Numerical Computation for Gyrotactic Microorganisms in MHD Radiative Eyring–Powell Nanomaterial Flow by a Static/Moving Wedge with Darcy–Forchheimer Relation
Micromachines - Tập 13 Số 10 - Trang 1768
M. Faizan, Aurang Zaib, Farhan Ali, Omar T. Bafakeeh, Sayed M. Eldin, Kamel Guedri, Samia Elattar, M. Ijaz Khan
The intention of this study is to carry out a numerical investigation of time-dependent magneto-hydro-dynamics (MHD) Eyring–Powell liquid by taking a moving/static wedge with Darcy-Forchheimer relation. Thermal radiation was taken into account for upcoming solar radiation, and the idea of bioconvection is also considered for regulating the unsystematic exertion of floating nanoparticles. The novel... hiện toàn bộ
Significant Involvement of Double Diffusion Theories on Viscoelastic Fluid Comprising Variable Thermophysical Properties
Micromachines - Tập 12 Số 8 - Trang 951
Muhammad Sohail, Umar Nazir, Omar Bazighifan, Rami Ahmad El‐Nabulsi, Mahmoud M. Selim, Hussam Alrabaiah, Phatiphat Thounthong
This report examines the heat and mass transfer in three-dimensional second grade non-Newtonian fluid in the presence of a variable magnetic field. Heat transfer is presented with the involvement of thermal relaxation time and variable thermal conductivity. The generalized theory for mass flux with variable mass diffusion coefficient is considered in the transport of species. The conservation laws... hiện toàn bộ
A Review for Compact Model of Thin-Film Transistors (TFTs)
Micromachines - Tập 9 Số 11 - Trang 599
Nianduan Lu, Wenfeng Jiang, Quantan Wu, Di Geng, Ling Li, Ming Liu
Thin-film transistors (TFTs) have grown into a huge industry due to their broad applications in display, radio-frequency identification tags (RFID), logical calculation, etc. In order to bridge the gap between the fabrication process and the circuit design, compact model plays an indispensable role in the development and application of TFTs. The purpose of this review is to provide a theoretical d... hiện toàn bộ
Fabrication and Modeling of Matching System for Air-Coupled Transducer
Micromachines - Tập 13 Số 5 - Trang 781
Jinjie Zhou, Jia‐qi Bai, Yao Liu
The tremendous acoustic impedance difference between the piezoelectric composite and air prevents the ultrasonic transition, resulting in low amplitude for the received signal for the composite defect detection using an air-coupled transducer. The matching system, which includes the matching layers and bonding layers attached to the piezoelectric composite, can reduce the acoustic impedance differ... hiện toàn bộ
Analysis and Optimization of a Microchannel Heat Sink with V-Ribs Using Nanofluids for Micro Solar Cells
Micromachines - Tập 10 Số 9 - Trang 620
Ruijin Wang, Jiawei Wang, Weijia Yuan
It is crucial to control the temperature of solar cells for enhancing efficiency with the increasing power intensity of multiple photovoltaic systems. In order to improve the heat transfer efficiency, a microchannel heat sink (MCHS) with V-ribs using a water-based nanofluid as a coolant for micro solar cells was designed. Numerical simulations were carried out to investigate the flows and heat tra... hiện toàn bộ
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