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Journal articles on the topic 'Multi-stable field'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Alismail, Ayman, Haochuan Wang, Gaia Barbiero, et al. "Multi-octave, CEP-stable source for high-energy field synthesis." Science Advances 6, no. 7 (2020): eaax3408. http://dx.doi.org/10.1126/sciadv.aax3408.

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The development of high-energy, high-power, multi-octave light transients is currently the subject of intense research driven by emerging applications in attosecond spectroscopy and coherent control. We report on a phase-stable, multi-octave source based on a Yb:YAG amplifier for light transient generation. We demonstrate the amplification of a two-octave spectrum to 25 μJ of energy in two broadband amplification channels and their temporal compression to 6 and 18 fs at 1 and 2 μm, respectively. In this scheme, due to the intrinsic temporal synchronization between the pump and seed pulses, the

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Zuo, Ziwen, Junfeng Wang, Yuanping Huo, Hailong Liu, and Cong Zhang. "Stable multi-jet behavior of ethanol under an electric field." Chinese Science Bulletin 65, no. 11 (2020): 1046–54. http://dx.doi.org/10.1360/tb-2019-0758.

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Varelis, Dimitris, and Dimitris A. Saravanos. "Non-linear coupled multi-field mechanics and finite element for active multi-stable thermal piezoelectric shells." International Journal for Numerical Methods in Engineering 76, no. 1 (2008): 84–107. http://dx.doi.org/10.1002/nme.2321.

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Gan, Cai Jun, and Ya Zhou. "New Ajax Post Method for Multi-Field Data Including Rich Text." Advanced Materials Research 430-432 (January 2012): 1151–54. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.1151.

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A new Ajax (Asynchronous JavaScript And XML) post (NAP) method for multi-field data including rich text is presented. By reasonable construction of multi-field data structure and using a new server-side analytical algrithm,the method cleverly avoids abstacles which arises in a conventional Ajax post (CAP) method.Test results show that the method is more stable and reliable than CAP method and performs much better than a traditional form post (TFP) method obviously in saving network flux and reducing response time.

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Ikram, M., S. K. Singh, A. A. Usmani, and S. K. Patra. "A relativistic mean field study of multi-strange system." International Journal of Modern Physics E 23, no. 09 (2014): 1450052. http://dx.doi.org/10.1142/s0218301314500529.

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In this paper, we study the binding energies, radii, single-particle energies, spin-orbit potential and density profile for multi-strange hypernuclei in the range of light mass to superheavy mass region within the relativistic mean field (RMF) theory. The stability of multi-strange hypernuclei as a function of introduced hyperons (Λ and Σ) is investigated. The neutron, lambda and sigma mean potentials are presented for light to superheavy hypernuclei. The inclusion of hyperons affects the nucleon, lambda and sigma spin-orbit potentials significantly. The bubble structure of nuclei and correspo

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Han, Hua, Zhu Mao, Qi Zhu, Mei Su, and Aiguo Patrick Hu. "A 3D Wireless Charging Cylinder With Stable Rotating Magnetic Field for Multi-Load Application." IEEE Access 7 (2019): 35981–97. http://dx.doi.org/10.1109/access.2019.2903831.

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Sang, Xiaoyue, Zhaohui Yuan, Xiaojun Yu, et al. "Simultaneous stable control of temperature field distribution uniformity and consistency for multi-temperature zone systems." Transactions of the Institute of Measurement and Control 43, no. 9 (2021): 2069–80. http://dx.doi.org/10.1177/0142331221989849.

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As a key factor characterizing the control accuracy of multi-temperature zone systems (MTZSs), the stable control of temperature field distribution uniformity and consistency is of critical importance for MTZSs, and it largely determines the product quality and production efficiency. Due to the complicated multiple input and output properties, as well as the various external variations in practice, however, it is extremely difficult to monitor the temperature field distribution in production process. To address the uniform and consistent temperature field distribution problem in MTZSs, a multi

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Sharma, Mamta, Rameshwar Telangre, Raju Ghosh, and Suresh Pande. "Multi-environment field testing to identify broad, stable resistance to sterility mosaic disease of pigeonpea." Journal of General Plant Pathology 81, no. 3 (2015): 249–59. http://dx.doi.org/10.1007/s10327-015-0585-z.

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Du, Juan, Congxin Xia, Wenqi Xiong, Tianxing Wang, Yu Jia, and Jingbo Li. "Two-dimensional transition-metal dichalcogenides-based ferromagnetic van der Waals heterostructures." Nanoscale 9, no. 44 (2017): 17585–92. http://dx.doi.org/10.1039/c7nr06473j.

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Cerdà, Joan J., Pedro A. Sánchez, Daniel Lüsebrink, Sofia Kantorovich, and Tomàs Sintes. "Flexible magnetic filaments under the influence of external magnetic fields in the limit of infinite dilution." Physical Chemistry Chemical Physics 18, no. 18 (2016): 12616–25. http://dx.doi.org/10.1039/c6cp00923a.

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Lim, Jong Hyeuk, Kyong Nam Kim, and Geun Young Yeom. "Characteristics of Inductive Coupled Plasma with Internal Linear Antenna Using Multi-Polar Magnetic Field for FPD Processing." Solid State Phenomena 124-126 (June 2007): 271–74. http://dx.doi.org/10.4028/www.scientific.net/ssp.124-126.271.

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An internal linear inductive antenna referred to as “double comb-type antenna” was used for a large-area plasma source with the substrate area of 880mm × 660mm and the effects of multi-polar magnetic field applied by inserting permanent magnets parallel to the linear internal antennas on the plasma characteristics were investigated. By applying the multi-polar magnetic field, high density plasmas on the order of 3.2 × 1011-3 which is 50% higher than that obtained for the source without multi-polar magnetic field could be obtained at the RF power of 5000W. Also stable impedance matching with a

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von Hebel, van der Kruk, Huisman, et al. "Calibration, Conversion, and Quantitative Multi-Layer Inversion of Multi-Coil Rigid-Boom Electromagnetic Induction Data." Sensors 19, no. 21 (2019): 4753. http://dx.doi.org/10.3390/s19214753.

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Multi-coil electromagnetic induction (EMI) systems induce magnetic fields below and above the subsurface. The resulting magnetic field is measured at multiple coils increasingly separated from the transmitter in a rigid boom. This field relates to the subsurface apparent electrical conductivity (σa), and σa represents an average value for the depth range investigated with a specific coil separation and orientation. Multi-coil EMI data can be inverted to obtain layered bulk electrical conductivity models. However, above-ground stationary influences alter the signal and the inversion results can

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13

Tao, Jun, Gang Sun, Ying Hu, and Miao Zhang. "Noise Prediction for Multi-Element Airfoil Based on FW-H Equation." Applied Mechanics and Materials 52-54 (March 2011): 1388–93. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.1388.

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In this article, four observation points are selected in the flow field when predicting aerodynamic noise of a multi-element airfoil for both a coarser grid and a finer grid. Numerical simulation of N-S equations is employed to obtain near-field acoustic information, then far-field acoustic information is obtained through acoustic analogy theory combined with FW-H equation. Computation indicates: the codes calculate the flow field in good agreement with the experimental data; The finer the grid is, the more stable the calculated sound pressure level (SPL) is and the more regularly d(SPL)/d(St)

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Gu, W., P. E. Heil, H. Choi, and K. Kim. "Generation of stable multi-jets by flow-limited field-injection electrostatic spraying and their control viaI–Vcharacteristics." Journal of Physics D: Applied Physics 43, no. 49 (2010): 492001. http://dx.doi.org/10.1088/0022-3727/43/49/492001.

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15

Renard, Delphine, Jago Jonathan Birk, Bruno Glaser, et al. "Origin of mound-field landscapes: a multi-proxy approach combining contemporary vegetation, carbon stable isotopes and phytoliths." Plant and Soil 351, no. 1-2 (2011): 337–53. http://dx.doi.org/10.1007/s11104-011-0967-8.

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16

YANG, YUE, D. I. PULLIN, and IVÁN BERMEJO-MORENO. "Multi-scale geometric analysis of Lagrangian structures in isotropic turbulence." Journal of Fluid Mechanics 654 (May 17, 2010): 233–70. http://dx.doi.org/10.1017/s0022112010000571.

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We report the multi-scale geometric analysis of Lagrangian structures in forced isotropic turbulence and also with a frozen turbulent field. A particle backward-tracking method, which is stable and topology preserving, was applied to obtain the Lagrangian scalar field φ governed by the pure advection equation in the Eulerian form ∂tφ + u · ∇φ = 0. The temporal evolution of Lagrangian structures was first obtained by extracting iso-surfaces of φ with resolution 10243 at different times, from t = 0 to t = Te, where Te is the eddy turnover time. The surface area growth rate of the Lagrangian stru

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Dos Santos, D. D., S. Frey, M. F. Naccache, and P. R. de Souza Mendes. "MULTI-FIELD STABILIZED FINITE ELEMENT APPROXIMATIONS FOR OLDROYD-B FLUID FLOWS." Revista de Engenharia Térmica 12, no. 1 (2013): 61. http://dx.doi.org/10.5380/reterm.v12i1.62031.

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This work concerns with numerical simulations of creeping and inertial flows of viscoelastic fluids. The mechanical model consists of mass and momentum balance equations, coupled with the Oldroyd-B fluid. The model is approximated by a multi-field Galerkin least-squares (GLS) methodology in terms of extra-stress, velocity and pressure. The GLS method, introduced by Hughes et al. (1986) in the context of the Stokes problem for Newtonian fluidflows, allows the use of combinations of equal-order finite element interpolations and remains stable even for elastic- and inertiadominated fluid flows. S

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Cao, Jingying, Jie Chen, Liu Yang, et al. "Multi-physics coupling finite element analysis of 10kV tri-axial HTS cable." E3S Web of Conferences 118 (2019): 02056. http://dx.doi.org/10.1051/e3sconf/201911802056.

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As an important equipment of power transmission, power cable has been required better performance on cable line loss and current ampacity to achieve its high reliability. This paper proposes an advanced application of superconducting transmission technology in power grid, namely tri-axial high-temperature superconducting (HTS) cable. The corresponding simplified model is established for multi-physical field analysis, and the size of each structure is determined through structural design. The temperature distribution of the cable body is analyzed according to multi-physical field coupling, and

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Zhang, Jin. "Ground Disasters Visual Representation Based on Multi-Field Geospatial Infographics Spectra in Mining Area." Abstracts of the ICA 1 (July 15, 2019): 1–2. http://dx.doi.org/10.5194/ica-abs-1-430-2019.

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<p><strong>Abstract.</strong> Geospatial infographics spectra is a new cross research direction of cartographic theory. It combines the infographic representing geospatial information with the spectra recording spatial-temporal evolution to form geo-infographics spectra, which reflects the characteristics and dynamic changes of the object's morphological structure, mechanism, composition, and reveals the temporal and spatial variation law of regional geo-phenomena. Infographics can be a map in the form of spatial information. It also includes other graphical forms such as ima

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Kitazawa, Takafumi. "Synthesis and Applications of New Spin Crossover Compounds." Crystals 9, no. 8 (2019): 382. http://dx.doi.org/10.3390/cryst9080382.

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The spin crossover (SCO) between multi-stable states in transition metal material is one of the attractive molecular switching phenomena which is responsive to various external stimuli such as temperature, pressure, light, electromagnetic field, radiation, nuclear decay, soft-X-ray, guest molecule inclusion, chemical environments and so forth [...]

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Song, Dun Bo. "Study of a Measurement and Control System of Industrial Site." Applied Mechanics and Materials 635-637 (September 2014): 776–81. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.776.

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According to the industrial site of precision measurement and control systems, the demand for real-time monitoring and multi-task, the paper studied and designed an industrial site monitoring and control system based on Labview; overall structure of software and hardware, the system was designed system, the system platform-level and user-level using a two-stage multi-task scheduling strategy to achieve the industrial field parallel scheduling and control system to improve the operating efficiency of monitoring and control systems; practice shows that the system has high accuracy, strong and st

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He, Xiao Jun, Xiao Ping Tian, and Bo Dai. "Study on the Application of Multi-Frequency Error Test." Advanced Materials Research 433-440 (January 2012): 4802–6. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.4802.

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In order to test the characteristics of the telephone line, BER (Bit Error Rate) test is one of the most important aspects. The multi-frequency BER test is achieved using FPGA (Field Programmable Gate Array), MCU (Micro Controller Unit) and Modem chip. This design is able to exactly test the telephone line’s bit error whose frequency is between 1.2KHz and 160KHz. repeatedly experiments results show that this method is stable and reliable, and has important application values.

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Corain, Benedetto, Marco Zecca, Patrizia Canton, and Paolo Centomo. "Synthesis and catalytic activity of metal nanoclusters inside functional resins: an endeavour lasting 15 years." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 368, no. 1915 (2010): 1495–507. http://dx.doi.org/10.1098/rsta.2009.0278.

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Cross-linked functional polymers (functional resins) are versatile, designable and useful supports for metal nanoclusters that are able to provide reasonably thermally and mechanically stable multi-functional metal catalysts characterized by good activity and selectivity. The paper reviews authors’ contributions to the field from the early 1990s to the present.

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Sambas, Aceng, Sundarapandian Vaidyanathan, Talal Bonny, et al. "Mathematical Model and FPGA Realization of a Multi-Stable Chaotic Dynamical System with a Closed Butterfly-Like Curve of Equilibrium Points." Applied Sciences 11, no. 2 (2021): 788. http://dx.doi.org/10.3390/app11020788.

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This paper starts with a review of three-dimensional chaotic dynamical systems equipped with special curves of balance points. We also propose the mathematical model of a new three-dimensional chaotic system equipped with a closed butterfly-like curve of balance points. By performing a bifurcation study of the new system, we analyze intrinsic properties such as chaoticity, multi-stability, and transient chaos. Finally, we carry out a realization of the new multi-stable chaotic model using Field-Programmable Gate Array (FPGA).

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Xue, Bing, Yuuki Tamaru, Yuxi Fu, et al. "A Custom-Tailored Multi-TW Optical Electric Field for Gigawatt Soft-X-Ray Isolated Attosecond Pulses." Ultrafast Science 2021 (August 16, 2021): 1–13. http://dx.doi.org/10.34133/2021/9828026.

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Since the first isolated attosecond pulse was demonstrated through high-order harmonics generation (HHG) in 2001, researchers’ interest in the ultrashort time region has expanded. However, one realizes a limitation for related research such as attosecond spectroscopy. The bottleneck is concluded to be the lack of a high-peak-power isolated attosecond pulse source. Therefore, currently, generating an intense attosecond pulse would be one of the highest priority goals. In this paper, we review our recent work of a TW-class parallel three-channel waveform synthesizer for generating a gigawatt-sca

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Jiang, Jiaxin, Gaofeng Zheng, Xiang Wang, et al. "Arced Multi-Nozzle Electrospinning Spinneret for High-Throughput Production of Nanofibers." Micromachines 11, no. 1 (2019): 27. http://dx.doi.org/10.3390/mi11010027.

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The stable and continuous ejection of multiple jets with high densities is the key to the application of electrospinning technology. An arced multi-nozzle spinneret was designed to increase the production efficiency of electrospinning. The distribution of the electrical field was simulated to optimize the nozzles’ distribution of the spinneret. When the nozzles were arranged in an arc array, a relatively uniform electrical field could be obtained, which was beneficial for the weakening of electrical interference among the nozzles. Under the optimized electrical field, multiple jets from each n

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Nishimura, Masako, Sukehiro Itoh, and Steve Joens. "Development of a Field Emission VP-SEM and Some Initial Applications." Microscopy and Microanalysis 7, S2 (2001): 882–83. http://dx.doi.org/10.1017/s1431927600030488.

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The use of variable pressure SEMs (VP-SEMs) is increasing in various fields of science and industry, allowing microscopy in a variable pressure environment of 1 ∼ 270 Pa utilizing backscattered electrons for imaging. The VP-SEM allows microscopy of insulated samples without the need for sample preparation. Charging artifacts can be minimized as well. When the VP-SEM is operated with a cooling stage, which allows cooling of samples at −20° and above, vaporization of water from samples is reduced. This permits microscopy of wet samples at close to the natural state for extended periods of time.P

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Li, Xuanpeng, Lifeng Zhu, Qifan Xue, Dong Wang, and Yongjie Jessica Zhang. "Fluid-inspired field representation for risk assessment in road scenes." Computational Visual Media 6, no. 4 (2020): 401–15. http://dx.doi.org/10.1007/s41095-020-0190-8.

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AbstractPrediction of the likely evolution of traffic scenes is a challenging task because of high uncertainties from sensing technology and the dynamic environment. It leads to failure of motion planning for intelligent agents like autonomous vehicles. In this paper, we propose a fluid-inspired model to estimate collision risk in road scenes. Multi-object states are detected and tracked, and then a stable fluid model is adopted to construct the risk field. Objects’ state spaces are used as the boundary conditions in the simulation of advection and diffusion processes. We have evaluated our ap

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Cappelli, Andrea, Carlo A. Trugenberger, and Guillermo R. Zemba. "W1+∞ Field Theories for the Edge Extensions in the Quantum Hall Effect." International Journal of Modern Physics A 12, no. 06 (1997): 1101–11. http://dx.doi.org/10.1142/s0217751x97000827.

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We briefly review these low-energy effective theories for the quantum Hall effect, with emphasis and language familiar to field theorists. Two models have been proposed for describing the most stable Hall plateaus (the Jain series): the multi-component Abelian theories and the minimal W1+∞ models. They both lead to a-priori classifications of quantum Hall universality classes. Some experiments already confirmed the basic predictions common to both effective theories, while other experiments will soon pin down their detailed properties and differences. Based on the study of partition functions,

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Kim, Taeyoon, Jung Wook Lim, Sun Jin Yun, Seong Hyun Lee, and Kwang Hoon Jung. "Multi‐Level Long‐Term Memory Resembling Human Memory Based on Photosensitive Field‐Effect Transistors with Stable Interfacial Deep Traps." Advanced Electronic Materials 6, no. 4 (2020): 1901044. http://dx.doi.org/10.1002/aelm.201901044.

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MILLS, R. L., M. J. HOLE, and R. L. DEWAR. "Magnetohydrodynamic stability of plasmas with ideal and relaxed regions." Journal of Plasma Physics 75, no. 5 (2009): 637–59. http://dx.doi.org/10.1017/s0022377809008095.

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AbstractA unified energy principle approach is presented for analysing the magnetohydrodynamic (MHD) stability of plasmas consisting of multiple ideal and relaxed regions. The gauge a = ξ × B for the vector potential, a, of linearized perturbations is used, with the equilibrium magnetic field B obeying a Beltrami equation, ∇ × B = αB, in relaxed regions. In a region with such a force-free equilibrium Beltrami field we show that ξ obeys the same Euler–Lagrange equation whether ideal or relaxed MHD is used for perturbations, except in the neighbourhood of the magnetic surfaces where B · ∇ is sin

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Qiao, Tianbo. "Gait Control of Hexapod Robot Based on Field-Programmable Gate Array and Central Pattern Generator." Journal Européen des Systèmes Automatisés 53, no. 6 (2020): 931–37. http://dx.doi.org/10.18280/jesa.530619.

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This paper attempts to improve the terrain adaptability of hexapod robot through gait control. Firstly, the multi-leg coupling in the tripodal gait of the hexapod robot was modeled by Hopf oscillator. Then, annular central pattern generator (CPG) was adopted to simulate the leg movements of hexapod robot between signals. Furthermore, a physical prototype was designed for the gait control test on field-programmable gate array (FPGA), and the algorithm of the rhythmic output of the model was programmed in Verilog, a hardware description language. Finally, the effectiveness of our gait control me

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de Quadros, Ciro A., Peter Carrasco, and Jean-Marc Olivé. "The Desired Field-Performance Characteristics of New Improved Vaccines for the Developing World." International Journal of Technology Assessment in Health Care 10, no. 1 (1994): 65–70. http://dx.doi.org/10.1017/s0266462300013994.

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AbstractAlthough the vaccination initiatives undertaken during the past decade are the cornerstones for protecting the world's children and helping to ensure their survival and development, the vaccines currently being employed may become obstacles for further disease reduction or eradication. Their characteristics complicate or increase the burden on health care infrastructures to maintain or expand vaccine delivery systems. This paper examines an experience with the vaccine technologies that currently are being used by immunization programs in developing countries, illustrating the field pro

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Liu, Haijun, Zhanbin Guo, Lixin Zhao, Xinyu Wang, and Shan Lan. "Numerical simulation and experimental verification of stability on multi-cavity spiral cascade heat transfer system." Thermal Science, no. 00 (2020): 319. http://dx.doi.org/10.2298/tsci200625319l.

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In order to improve the insufficient effect of heat transfer in pyrolysis carbonization system and reveal the effects of velocity and temperature field of hot flue gas on heat transfer and stability in the biomass, the structure with rectangular groove combined with a spiral baffle is designed to form a multi-cavity spiral cascade heat transfer system. Numerical simulation and experimental verification of stability are carried on multi-cavity spiral cascade heat transfer system. The results show that the hot flue gas with high temperature flows fast at the inlet and outlet, while the flow spee

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Altdorff, Daniel, Kamaleswaran Sadatcharam, Adrian Unc, Manokarajah Krishnapillai, and Lakshman Galagedara. "Comparison of Multi-Frequency and Multi-Coil Electromagnetic Induction (EMI) for Mapping Properties in Shallow Podsolic Soils." Sensors 20, no. 8 (2020): 2330. http://dx.doi.org/10.3390/s20082330.

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Electromagnetic induction (EMI) technique is an established method to measure the apparent electrical conductivity (ECa) of soil as a proxy for its physicochemical properties. Multi-frequency (MF) and multi-coil (MC) are the two types of commercially available EMI sensors. Although the working principles are similar, their theoretical and effective depth of investigation and their resolution capacity can vary. Given the recent emphasis on non-invasive mapping of soil properties, the selection of the most appropriate instrument is critical to support robust relationships between ECa and the tar

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Parker, Q. A., and F. G. Watson. "A Flair for Multi-Object Spectroscopy." Symposium - International Astronomical Union 161 (1994): 85–88. http://dx.doi.org/10.1017/s0074180900047124.

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Unique in the regime of wide-field astronomy is the multi-object spectroscopy system ‘FLAIR’ developed for the UK Schmidt Telescope (UKST). The current system can perform simultaneous observations of ∼ 90 objects across 40 sq. degrees of sky. FLAIR has given a whole new platform for performing astronomical observations with a Schmidt telescope in a non-photographic role. The system is simple to operate, highly stable, easy to interchange with standard photography and outclasses single-object spectroscopy systems on 2.0 m class telescopes for many types of observation. The system has continued

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Zhang, Yi, and Dong Ming Guo. "Temperature Field of Multi-Wells Aquifer Thermal Energy Storage in Sanhejian Coal Mine." Applied Mechanics and Materials 138-139 (November 2011): 442–46. http://dx.doi.org/10.4028/www.scientific.net/amm.138-139.442.

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When production needs, the technology of aquifer thermal energy storage (ATES) can achieve cooling or heating by running the “underground cold water reservoir” or the “underground heat water reservoir”. In this paper, taking Sanhejian Coal Mine as an example, we discuss that with the same pumping and irrigation flow in multi-wells, distribution and change of temperature field in aquifers when energy storage system runs. The simulation results of aquifer temperature field show that any cold water well running can make temperature around the centerlin rise, and the rate rose from 0.4 °C to 6 °C

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Kim, Taeyoon, Jung Wook Lim, Sun Jin Yun, Seong Hyun Lee, and Kwang Hoon Jung. "Multi‐Level Memory: Multi‐Level Long‐Term Memory Resembling Human Memory Based on Photosensitive Field‐Effect Transistors with Stable Interfacial Deep Traps (Adv. Electron. Mater. 4/2020)." Advanced Electronic Materials 6, no. 4 (2020): 2070018. http://dx.doi.org/10.1002/aelm.202070018.

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Lan, Yuan-Jyh, Tai-Wen Hsu, Rafał Ostrowski, and Marek Szmytkiewicz. "Wave Transformation in a Multi-Bar Surf Zone: Case Study of Lubiatowo (Poland)." Archives of Hydro-Engineering and Environmental Mechanics 63, no. 1 (2016): 19–34. http://dx.doi.org/10.1515/heem-2016-0002.

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Abstract The paper presents results of field and theoretical investigations of wave transformation in the surf zone near the IBW PAN Coastal Research Station in Lubiatowo (Poland, the south Baltic Sea). The study site displays multi-bar cross-shore profiles that intensively dissipate wave energy, mostly induced by breaking. The main field data comprise wave heights and cross-shore bathymetric profiles.Wave transformation is modelled theoretically by two approaches, namely the IBW PAN phase-averaged wave transformation model and the approach based on the hydraulic jump model, developed by Hsu &

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Feng, Li, Ling Min An, Chang Sheng Zhu, Yang Lu, Rong Zhen Xiao, and Bo Cheng. "Phase-Field Simulation Studies of Multiple Grains Coupled with Force Flow Field." Advanced Materials Research 915-916 (April 2014): 1038–48. http://dx.doi.org/10.4028/www.scientific.net/amr.915-916.1038.

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Coupling the force flow field with the phase field model for the isothermal growth of dendrite multiple grains, Sola algorithm is used to calculate the flow speed and pressure of liquid metal, double grid numerical method was used to reduce the calculation amount of computer simulation, the space factor and time factor were introduced to improve the accuracy of double grid numerical calculation, Taking Al-2%-Cu alloy for example, the dendrite growth process of the binary alloy was simulated under forced convection environment; Simulation results can capture the real dendrite growth and interac

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Sogami, Ikuo S. "Extension of Standard Model in multi-spinor field formalism — Visible and dark sectors." International Journal of Modern Physics A 31, no. 18 (2016): 1630027. http://dx.doi.org/10.1142/s0217751x16300271.

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With multi-spinor fields which behave as triple-tensor products of the Dirac spinors, the Standard Model is extended so as to embrace three families of ordinary quarks and leptons in the visible sector and an additional family of exotic quarks and leptons in the dark sector of our Universe. Apart from the gauge and Higgs fields of the Standard Model symmetry G, new gauge and Higgs fields of a symmetry isomorphic to G are postulated to exist in the dark sector. It is the bi-quadratic interaction between visible and dark Higgs fields that opens a main portal to the dark sector. Breakdowns of the

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Xu, Guo Sheng. "Design of Data Acquisition System Based on FPGA." Advanced Materials Research 403-408 (November 2011): 1592–95. http://dx.doi.org/10.4028/www.scientific.net/amr.403-408.1592.

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A new kind of data acquisition system is introduced in this paper, in which the multi-channel synchronized real-time data acquisition under the coordinate control of field-programmable gate array(FPGA) is realized. The design uses field programmable gate arrays(FPGA) for the data processing and logic control. For high speed CCD image data processing, the paper adopts regional parallel processing based on FPGA. The FPGA inner block RAM is used to build high speed image data buffer is put into operation to achieve high speed image data integration and real-time processing. The proposed data acqu

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Jaksch, H., and J.-P. Vermeulen. "New Developments in Gemini® Fesem Technology." Microscopy Today 13, no. 2 (2005): 8–11. http://dx.doi.org/10.1017/s1551929500051397.

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The Field Emission SEM was introduced to improve imaging resolution available with conventional SEMs with a tungsten source. Thermal assisted or Schottky Field Emission SEMs were introduced in s the nineties by a number of companies as a stable source to overcome the beam instability of the cold FESEMs introduced earlier. The Gemini® based Field Emission SEM launched by Zeiss 12 years ago has been designed from the beginning as a high stability FESEM with a relatively large multi-ported chamber. The drive to develop Gemini® technology was the need for a FESEM capable of ultra-high resolution p

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Morin, J., J. F. Donati, P. Petit, et al. "Exploring the magnetic topologies of cool stars." Proceedings of the International Astronomical Union 6, S273 (2010): 181–87. http://dx.doi.org/10.1017/s1743921311015213.

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AbstractMagnetic fields of cool stars can be directly investigated through the study of the Zeeman effect on photospheric spectral lines using several approaches. With spectroscopic measurement in unpolarised light, the total magnetic flux averaged over the stellar disc can be derived but very little information on the field geometry is available. Spectropolarimetry provides a complementary information on the large-scale magnetic topology. With Zeeman-Doppler Imaging (ZDI), this information can be retrieved to produce a map of the vector magnetic field at the surface of the star, and in partic

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Lalwani, Soniya, Harish Sharma, and Kusum Deep. "An Implementation of Three-level Multi-objective ABC Algorithm for RNA Multiple Structural Alignment." Recent Advances in Computer Science and Communications 13, no. 1 (2020): 68–76. http://dx.doi.org/10.2174/2213275912666181128121104.

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Background: Structural alignment of ribose nucleic acid (RNA) is one of the most challenging multi-objective real world problems from the field of bioinformatics. Objective: RNA molecules are less stable; hence they require inclusion of most stable secondary structure during their alignment. Therefore, the structural alignment requires the consideration of similarity score and structure score, as two objectives. Trade-off between these two objectives exists since obtaining optimum similarity score at concurrent optimum structure score is not possible. This paper presents artificial bee colony

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Lu, Weiyong, and Changchun He. "Numerical simulation of the laws of fracture propagation of multi-hole linear co-directional hydraulic fracturing." Energy Exploration & Exploitation 39, no. 3 (2021): 903–26. http://dx.doi.org/10.1177/0144598721988993.

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Directional rupture is one of the most important and most common problems related to rock breaking. The goal of directional rock breaking can be effectively achieved via multi-hole linear co-directional hydraulic fracturing. In this paper, the XSite software was utilized to verify the experimental results of multi-hole linear co-directional hydraulic fracturing., and its basic law is studied. The results indicate that the process of multi-hole linear co-directional hydraulic fracturing can be divided into four stages: water injection boost, hydraulic fracture initiation, and the unstable and s

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Li, Zheng, Xuanxuan Xing, Xueting Wang, Shenhui Du, and Hexu Sun. "Analysis of flow field characteristics of multi-degree-of-freedom motor with air-floatation." Advances in Mechanical Engineering 13, no. 4 (2021): 168781402110106. http://dx.doi.org/10.1177/16878140211010642.

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In order to combine the working performance of the motor and the specific requirements for accuracy, a model combining gas bearing with multi-degree-of-freedom (MDOF) motor is invoked. The bearing structure is optimized in terms of lubrication characteristics, which makes the motor life and deflection accuracy have been significantly improved. This kind of special bearing mainly provides a certain supporting force for the motor. Its stability directly affects the output performance of the motor. It should be ensured that the bearing can be used as a stable supporting structure. This paper main

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Yuan, Yuwei, Weixing Zhang, Yongzhi Zhang, et al. "Differentiating Organically Farmed Rice from Conventional and Green Rice Harvested from an Experimental Field Trial Using Stable Isotopes and Multi-Element Chemometrics." Journal of Agricultural and Food Chemistry 66, no. 11 (2018): 2607–15. http://dx.doi.org/10.1021/acs.jafc.7b05422.

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Jiang, Shiyang. "The Large-Field Bright-Star High-Precision CCD Photometer of BAO." Symposium - International Astronomical Union 167 (1995): 325–26. http://dx.doi.org/10.1017/s007418090005662x.

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Time-series high-accuracy photometry is very important for research in stellar variability. For a long time photometry made by a photomultiplier was the only instrument for high precision stellar photometry. To overcome the atmospheric variation and instrumental problems, we must choose at least one stable star as a comparison star and move the telescope quickly between the targets. So the real efficiency is very low and one only can do it on photometric nights. To overcome this limitation, since 1989 we began to cooperate with the team of the STEPHI network. We used the Chevreton four-channel

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Choukulkar, Aditya, W. Alan Brewer, Scott P. Sandberg, et al. "Evaluation of single and multiple Doppler lidar techniques to measure complex flow during the XPIA field campaign." Atmospheric Measurement Techniques 10, no. 1 (2017): 247–64. http://dx.doi.org/10.5194/amt-10-247-2017.

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Abstract. Accurate three-dimensional information of wind flow fields can be an important tool in not only visualizing complex flow but also understanding the underlying physical processes and improving flow modeling. However, a thorough analysis of the measurement uncertainties is required to properly interpret results. The XPIA (eXperimental Planetary boundary layer Instrumentation Assessment) field campaign conducted at the Boulder Atmospheric Observatory (BAO) in Erie, CO, from 2 March to 31 May 2015 brought together a large suite of in situ and remote sensing measurement platforms to evalu

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