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Journal articles on the topic 'Instrumentation scheme'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Turgut, Melih, and Paul Drijvers. "Instrumentation Schemes for Solving Systems of Linear Equations with Dynamic Geometry Software." International Journal for Technology in Mathematics Education 28, no. 2 (2021): 65–80. http://dx.doi.org/10.1564/tme_v28.2.01.

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In this paper we focus on the link between the use of dynamic geometry software and student understanding for the solution of systems of linear equations from an instrumental genesis perspective. Three task-based interviews were conducted with an undergraduate linear algebra student majoring in mathematics education and proficient in using dynamic geometry software. Data included video recordings, student written work and screen recordings. The data analysis was guided by the theoretical lens of instrumental genesis, to elaborate on how student thinking was shaped by the use of the digital art

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Chong, Zhi Lin, Shuo Huang, Amitava Mukherjee, and Jun Yang. "Performance comparisons of distribution-free Shewhart-type Lepage and Cucconi schemes in monitoring complex process distributions." Transactions of the Institute of Measurement and Control 42, no. 14 (2020): 2787–811. http://dx.doi.org/10.1177/0142331220932466.

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In recent years, researchers introduced several distribution-free schemes for simultaneously monitoring the location and scale parameters of distribution in the literature related to process monitoring and control. To this end, the Shewhart-Lepage (SL) and Shewhart-Cucconi (SC) schemes are two fundamental distribution-free schemes. These schemes are primarily designed to monitor the location-scale family of densities. In practice, apart from the location and scale parameters, we often encounter the presence of a shape (or skewness) parameter. In this article, we investigate the performance of

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Li, Chen-Long, Xiao-Shuang Ma, and Jiao-Jun Zhang. "Nonlinear system predictive control using a multi-dimensional Taylor network." Transactions of the Institute of Measurement and Control 41, no. 12 (2019): 3396–405. http://dx.doi.org/10.1177/0142331219826656.

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A predictive control scheme on the basis of multi-dimensional Taylor network (MTN), named as MTN predictive compensation control, is proposed for single-input single-output nonlinear systems in this paper. We consider the MTN model as a one-step-ahead predictive model and train it by back-propagation (BP) algorithm with a momentum term, and then control the system by the predictive control law. Furthermore, to improve the anti-disturbance performance of the system, another MTN model is considered as the compensator and trained by a recursive least-squares algorithm to counteract the disturbanc

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Ghosh, G. "Characterization of Interfacial Microstructure in Joints Between Pb-Sn Eutectic Solder and Pd/Ni/Pd-Ni/Ni/Cu Metallization." Microscopy and Microanalysis 5, S2 (1999): 870–71. http://dx.doi.org/10.1017/s1431927600017670.

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In electronic packaging, it is very important to understand and control the interfacial microstructure formed due to the reaction between the metallization scheme and solders. Often, the interfacial reaction is exploited/controlled to obtain an optimum properties of the joints. The strength and interfacial properties of the solder joints are determined by the interfacial microstructure. The evolution of interfacial microstructure in solder joints is governed by the diffusion path during processing and in service. Even though the semiconductor industry uses a wide variety of complex metallizati

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Li, Kejing, Chen Wang, Jingjing Li, Lei Wang, Zongji Li, and Chuanlong Zhang. "Experimental Investigation into the Performance of PEMFCs with Three Different Hydrogen Recirculation Schemes." Inventions 9, no. 2 (2024): 33. http://dx.doi.org/10.3390/inventions9020033.

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Hydrogen recirculation systems (HRSs) are vital components of proton exchange membrane fuel cells (PEMFCs), and it is necessary to investigate different HRS schemes to meet the needs of high-power PEMFCs. PEMFCs are developing in the direction of low cost, high power, wide working conditions, low noise, compact structure, etc. Currently, it is difficult for hydrogen recirculation pumps (HRPs) to meet the flow requirements of high-power PEMFCs. HRPs inevitably have high parasitic energy consumption, loud noise output, high cost, easy leakage, and high failure rates. Therefore, it is necessary t

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Sun, Zhenxing, Shihua Li, Jiegao Wang, Xinghua Zhang, and Xiaohui Mo. "Adaptive composite control method of permanent magnet synchronous motor systems." Transactions of the Institute of Measurement and Control 40, no. 11 (2017): 3345–57. http://dx.doi.org/10.1177/0142331217719956.

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With the development of digital signal processes, the relative differences of PMSM single loop in control periods between the speed loop and current loops are becoming smaller or even vanishing. Therefore, cascade control schemes seem to be unnecessary. In addition, considering the effects of disturbances and the variety of moments of inertia, this paper proposes a scheme using an adaptive non-cascade control method to design the controller, which merges speed loop and q-axis current loop into one single loop. First, an extended state observer (ESO) is employed to estimate the disturbances of

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Zheng, Zewei, Keyu Yan, Shuaixian Yu, Bing Zhu, and Ming Zhu. "Path following control for a stratospheric airship with actuator saturation." Transactions of the Institute of Measurement and Control 39, no. 7 (2016): 987–99. http://dx.doi.org/10.1177/0142331215625770.

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This paper proposes two different path following control schemes for a stratospheric airship with actuator saturation. Each of the control schemes consists of a guidance loop and an attitude control loop. In both schemes, guidance laws are designed according to the line-of-sight guidance-based path following principle. In the first control scheme, a robust H∞ controller without constraints is designed based on the planar model of a stratospheric airship to stabilize path-following errors. The input constraints are then addressed by using a regional [Formula: see text]-based model recovery anti

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Zheng, Hongyu, Jinghuan Hu, and Yahui Liu. "A bilateral control scheme for vehicle steer-by-wire system with road feel and steering controller design." Transactions of the Institute of Measurement and Control 41, no. 3 (2017): 593–604. http://dx.doi.org/10.1177/0142331217734502.

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Steer-by-wire (SBW) system replaces the mechanical linkages in a conventional steering system with electronic actuators. However, such a steering system has problems regarding how to harmonize angle and torque close loop control strategy whilst guaranteeing SBW system stability. Towards this problem, a bilateral control scheme is proposed for SBW system with steering and road feel feedback control. A new torque and angle feedback deviation type bilateral control scheme is designed based on the analysis of several typical bilateral control schemes. In this bilateral control scheme, it only need

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9

Zhao, Kean, Mengjie Hu, and Yaoqing Chen. "Development and application of pressure transmitter based on IMC chip." Journal of Physics: Conference Series 2815, no. 1 (2024): 012019. http://dx.doi.org/10.1088/1742-6596/2815/1/012019.

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Abstract This paper proposes a design scheme for an FF bus pressure transmitter with a domestic IMC chip, using an ECS-700 instrumentation control system to apply the pressure transmitter in refining and chemical projects. Through planning and designing, configuration, and debugging, it improves the convenience and accuracy of the instrumentation system operation.

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Zhang, Bei, Haozhe Tian, Tianyu Xiao, and Jing Zhang. "Instrumentation of Surface Plasmon Microscopy: Complete Scheme of Signal Extractions." IEEE Transactions on Instrumentation and Measurement 70 (2021): 1–10. http://dx.doi.org/10.1109/tim.2021.3072137.

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11

Li, Qingbo, and Edward S. Yeung. "Simple Two-Color Base-Calling Schemes for DNA Sequencing Based on Standard Four-Label Sanger Chemistry." Applied Spectroscopy 49, no. 10 (1995): 1528–33. http://dx.doi.org/10.1366/0003702953965470.

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Two base-calling schemes for DNA sequencing are evaluated. Both are based on data collected from two broad-band emission channels derived from either one- or two-excitation channels. Standard four-dye Sanger reaction products are used in conjunction with capillary electrophoretic separation in a polymer matrix. Data acquisition is compatible with high light-throughput imaging and minimal data storage. In one scheme, commercial chromatographic software provides peak recognition and peak heights. The peak-height ratios from the two channels provide base-calling accuracies of 99.3% and 97.1% thro

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Scott, R. D., D. J. Turcke, and W. F. Baird. "A UNIQUE INSTRUMENTATION SCHEME FOR MEASURING LOADS IN MODEL DOLOS UNITS." Coastal Engineering Proceedings 1, no. 20 (1986): 163. http://dx.doi.org/10.9753/icce.v20.163.

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An instrumentation scheme for the measurement of the structural response of dolos units in a physical model due to static and quasistatic forces is presented. This was achieved by the development of a specialized armour unit "load cell". The load cell was tested under a variety of loading conditions ranging from static point loads to the complex forces arising from simulated prototype wave action. In the final stage of testing, a model breakwater was constructed and analyzed. The results of these tests demonstrated the accuracy of the developed instrumentation and the feasibility of its use fo

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Wang, Xing-Jue, Jun-Hong Zhou, Heng-Chao Yan, and Chee Khiang Pang. "Quality monitoring of spot welding with advanced signal processing and data-driven techniques." Transactions of the Institute of Measurement and Control 40, no. 7 (2017): 2291–302. http://dx.doi.org/10.1177/0142331217700703.

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As resistance spot welding is a crucial and widely used metal joining technique nowadays, a cheap and highly accurate online quality monitoring scheme is strongly demanded in industry. In this paper, a novel framework for welding quality examination is proposed by using advanced signal processing and artificial intelligence techniques. Our proposed framework consists of two objective schemes, a general welding quality classification scheme and a more detailed and advanced welding quality estimation scheme. To achieve a fast, convenient and cheap monitoring strategy, only the easily obtained el

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Harms, B. K., J. B. Park, and S. A. Dyer. "On the Use of Fast Hadamard Transforms for Spectrum Recovery in Hadamard Transform Spectroscopy." Applied Spectroscopy 46, no. 9 (1992): 1358–61. http://dx.doi.org/10.1366/0003702924123700.

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The spectrum-recovery step in Hadamard transform spectroscopy is commonly implemented with a fast Hadamard transform (FHT). When the Hadamard or simplex matrix corresponding to the mask does not have the same ordering as the Hadamard matrix corresponding to the FHT, a modification is required. When the two Hadamard matrices are in the same equivalence class, this modification can be implemented as a permutation scheme. This paper investigates permutation schemes for this application. The investigation clarifies inaccurate claims about the applicability of existing methods; reveals a new, more

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15

Chen, Hui, Min Xiang, Bingjie Guan, and Weijie Sun. "Composite nonlinear feedback–based adaptive integral sliding mode control for a servo position control system subject to external disturbance." Transactions of the Institute of Measurement and Control 44, no. 9 (2021): 1794–801. http://dx.doi.org/10.1177/01423312211063696.

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This paper presents a composite nonlinear feedback–based adaptive integral sliding mode controller with a reaching law (CNF-AISMRL) for fast and accurate control of a servo position control system subject to external disturbance. The proposed controller exploits the advantages of composite nonlinear feedback (CNF) and sliding mode control (SMC) schemes to improve the transient performance and increase the robustness of the closed-loop system. An integral sliding mode combined with a quick reaching law is designed to eliminate the effect of disturbances, which mitigates chattering and achieves

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Luy, Nguyen Tan. "Robust adaptive dynamic programming based online tracking control algorithm for real wheeled mobile robot with omni-directional vision system." Transactions of the Institute of Measurement and Control 39, no. 6 (2016): 832–47. http://dx.doi.org/10.1177/0142331215620267.

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This paper proposes a new method to design an online robust adaptive dynamic programming algorithm (RADPA) for a wheeled mobile robot which is equipped with an omni-directional vision system. To integrate kinematic and dynamic controllers into the unique controller, we transform the strict feedback system dynamics into tracking error dynamics. Then, we propose a control scheme which uses only one neural network rather than three proposed in the actor-critic-based control schemes for the two-player zero-sum game problem. A neural network weight update law is designed for approximating the solut

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17

Meaburn, A., and F. M. Hughes. "Pre-Scheduled PID Control of a Solar Thermal Power Plant." Transactions of the Institute of Measurement and Control 17, no. 3 (1995): 132–42. http://dx.doi.org/10.1177/014233129501700305.

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Efficient operation of a distributed solar collector field requires effective regulation of the outlet temperature. Control schemes utilising PI-based controllers, whether adaptive or fixed parameter, have been shown to be unsuitable for this application with a stable well-damped response only obtained at the expense of an unacceptably low speed of response. The reason for this is that collector fields possess low-frequency resonance dynamics which tend to restrict the bandwidth of such controllers. This paper examines the suitability and capability of PID controllers in this application area.

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18

Wang, Gang, Jiayin Feng, Guolin Li, Jinling Song, and Dongyan Jia. "Energy Consumption and QoS Optimization Coverage Mechanism in Wireless Sensor Networks Based on Swarm Sensing Algorithm." Journal of Sensors 2022 (September 28, 2022): 1–11. http://dx.doi.org/10.1155/2022/4908978.

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Objective. To study energy consumption and QoS optimization coverage mechanism in wireless sensor networks based on swarm sensing algorithm. Methods. The swarm sensor algorithm is reported to optimize the configuration of wireless sensor nodes, improve network service performance, and provide feedback on effective sensor placement. Results. Two WSN coverage optimization schemes were proposed in this essay. The first scheme applied drosophila intelligent algorithm to WSN coverage optimization, and the second scheme integrated particle swarm optimization algorithm and improved firefly algorithm

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19

Choi, Hojong. "A Doherty Power Amplifier for Ultrasound Instrumentation." Sensors 23, no. 5 (2023): 2406. http://dx.doi.org/10.3390/s23052406.

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The ultrasound instrumentation uses linear power amplifiers with low power efficiency, generating unwanted heat and resulting in the deterioration of the echo signal quality of measured targets. Therefore, this study aims to develop a power amplifier scheme to increase power efficiency while maintaining appropriate echo signal quality. In communication systems, the Doherty power amplifier has shown relatively good power efficiency while producing high signal distortion. The same design scheme cannot be directly applied to ultrasound instrumentation. Therefore, the Doherty power amplifier needs

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20

Abid, Muhammad, Hafiz Zafar Nazir, Muhammad Riaz, and Zhengyan Lin. "In-control robustness comparison of different control charts." Transactions of the Institute of Measurement and Control 40, no. 13 (2017): 3860–71. http://dx.doi.org/10.1177/0142331217734302.

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Control charts are widely used to monitor the process parameters. Proper design structure and implementation of a control chart requires its in-control robustness, otherwise, its performance cannot be fairly observed. It is important to know whether a chart is sensitive to disturbances to the model (e.g. normality under which it is developed) or not. This study, explores the robustness of Mixed EWMA-CUSUM (MEC) control chart for location parameter under different non-normal and contaminated environments and compares it with its counterparts. The robustness of the MEC scheme and counterparts is

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21

Bayrak, Abdurrahman, Handan Gürsoy, and Mehmet Önder Efe. "A novel robust fuzzy control of an uncertain system." Transactions of the Institute of Measurement and Control 39, no. 3 (2016): 324–33. http://dx.doi.org/10.1177/0142331216668394.

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This paper presents a robust control method combining the conventional proportional–integral–derivative (PID) scheme and the sliding mode fuzzy control scheme for a second-order non-linear system having uncertainties in the system dynamics. The goal of the proposed scheme is to force the response of the uncertain plant to follow that of the nominal model. The first phase of the design approach is to obtain a nominal PID controller for the nominal plant model. The poor performance of the sole PID scheme on the uncertain non-linear system motivates the proposal of the technique discussed here. T

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Li, Xianqiang, and Jun Zhou. "A sliding mode control design for mismatched uncertain systems based on states transformation scheme and chattering alleviating scheme." Transactions of the Institute of Measurement and Control 40, no. 8 (2017): 2509–16. http://dx.doi.org/10.1177/0142331216680351.

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In this paper, a class of mismatched uncertain systems is investigated. And a novel sliding mode control design is presented. During the design process of the proposed control, a transformation scheme is proposed, which can easily transform the mismatched uncertain systems into matched systems. Based on the matched systems, a novel full order sliding mode surface is designed, which can avoid the singular issue of terminal sliding mode control. And a chattering alleviating scheme is also proposed, which can ensure that the sliding mode control is chattering free regardless of whether the conven

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23

Shi, Jing, Dong Yue, and Shengxuan Weng. "Distributed event-triggered mechanism for secondary voltage control with microgrids." Transactions of the Institute of Measurement and Control 41, no. 6 (2018): 1553–61. http://dx.doi.org/10.1177/0142331218770715.

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This paper presents a secondary voltage control scheme with a distributed event-triggered mechanism for multiple distributed generators in droop-controlled microgrids. First, considering the issue of limited bandwidth of a communication network in a practical application, two types of distributed event-triggered mechanisms are proposed to reduce the information transmission pressure, while preserving the desired control performance. Then, based on the proposed triggering schemes, distributed secondary controllers are designed for distributed generators. Finally, simulation results demonstrate

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Scott, R. D., D. J. Turcke, and W. F. Baird. "A device for measuring forces in a rubble-mound breakwater." Canadian Journal of Civil Engineering 16, no. 6 (1989): 886–94. http://dx.doi.org/10.1139/l89-131.

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An improved instrumentation scheme has been designed and tested for measuring the generalized forces occurring within armour units in a physical model of a breakwater subjected to wave action. The fundamental change is centered around the concept of a load cell. Compared with previous devices developed by the authors, this new unit has improved sensitivity, full protection from all environmental influences, and a wider range of applicability. These improvements were substantiated by a number of static and hydraulic tests. Key words: breakwaters, armour, model, analysis, instrumentation.

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Basha, A. M., P. P. Gervadis, and R. Sudha Sadanand. "Microcomputer-based instrumentation and protection scheme for a slip-ring induction motor." Journal of Microcomputer Applications 15, no. 2 (1992): 147–56. http://dx.doi.org/10.1016/0745-7138(92)90056-b.

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Dash, PK, and DK Panda. "Software technique for a microcomputer-based digital instrumentation scheme using functional expansion." Microprocessors and Microsystems 9, no. 5 (1985): 218–25. http://dx.doi.org/10.1016/0141-9331(85)90268-6.

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27

Zhu, X. D., E. K. Ko, G. Kimbell, and J. Robinson. "An optimized scheme for detecting magneto-optic effects in ultrathin films with Sagnac interferometry." Review of Scientific Instruments 93, no. 9 (2022): 093101. http://dx.doi.org/10.1063/5.0090061.

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Sagnac interferometry is advantageous in measuring time-reversal-symmetry breaking effects in ferromagnetic and antiferromagnetic materials as it suppresses time-reversal symmetric birefringent effects that are ubiquitous and often overwhelming in optical detection systems. When its sensitivity is limited only by the amplifier noise in the photo-detector, one needs to optimize the optical power that returns to the detector. We demonstrate an experimental scheme that maximizes the returning optical power in a Sagnac interferometry when detecting the magneto-optic effect in ultrathin films. In t

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Gao, Xudong, and Mingcong Deng. "Operator-based robust nonlinear control of an uncertain wireless power transfer system using sliding mode technology." Transactions of the Institute of Measurement and Control 40, no. 16 (2018): 4397–406. http://dx.doi.org/10.1177/0142331217750224.

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In this paper, a mathematical modelling of a wireless power transfer system with a buck circuit is presented. Based on this modelling, an operator-based robust nonlinear control design scheme using sliding mode technology is proposed to consider the uncertain coupling coefficient, which results from an inaccurate distance between the transmit coil and receive coil in the wireless power transfer system. The proposed control design scheme has two advantages. First, in order to tackle the uncertain coupling coefficient, operator-based right coprime factorization is applied to guarantee robust sta

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Shahriari-kahkeshi, Maryam, and Sanaz Rahmani. "Adaptive interval type-2 fuzzy dynamic surface control for uncertain nonlinear systems with unknown asymmetric dead-zone input." Transactions of the Institute of Measurement and Control 41, no. 2 (2018): 516–31. http://dx.doi.org/10.1177/0142331218765618.

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In this study, an adaptive dynamic surface control (DSC) scheme based on the interval type-2 fuzzy systems is proposed for uncertain nonlinear systems with unknown asymmetric dead-zone input and unknown control gains. The dead-zone nonlinearity is represented as a time-varying system with a bounded disturbance. The proposed approach invokes the interval type-2 fuzzy system to approximate the unknown nonlinear dynamics that appears in the virtual and actual control inputs. Also, it proposes adaptive terms to compensate the effect of the disturbance-like term in the dead-zone constraint. Then, t

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Szatmári, S., and J. Bohus. "Differential pumping scheme for discharge pumped excimer lasers." Review of Scientific Instruments 77, no. 4 (2006): 045105. http://dx.doi.org/10.1063/1.2188335.

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Okamura, M., T. Kanesue, T. Yamamoto, and Y. Fuwa. "Iron beam acceleration using direct plasma injection scheme." Review of Scientific Instruments 85, no. 2 (2014): 02B907. http://dx.doi.org/10.1063/1.4825163.

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Zhou, Jun, Hao Yuan, Min Kong, and Gang Zhang. "Bidirectional quantum operation teleportation with a six-qubit composite Bell-GHZ state." Laser Physics Letters 19, no. 10 (2022): 105203. http://dx.doi.org/10.1088/1612-202x/ac89f1.

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Abstract A bidirectional quantum operation teleportation scheme is proposed by utilizing a six-qubit composite Bell-GHZ state. In which, two users Anne and Benson can perform their respective concerned single-qubit operations on each other’s target states. Compared with the other existing schemes of quantum operation teleportation (QOT), the present scheme can realize the remote implement of the positive and negative two-way quantum operations, which not only improves the communication capacity, but also expands the application scenarios of QOT. Additionally, it is deterministic and feasible w

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Yang, B., L. Jiang, CK Zhang, YY Sang, T. Yu, and QH Wu. "Perturbation observer-based adaptive passive control for nonlinear systems with uncertainties and disturbances." Transactions of the Institute of Measurement and Control 40, no. 4 (2016): 1223–36. http://dx.doi.org/10.1177/0142331216678313.

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In this paper, a perturbation observer-based adaptive passive control scheme is developed to provide great robustness of nonlinear systems against the unpredictable uncertainties and disturbances therein. The proposed scheme includes a high-gain perturbation observer and a robust passive controller. The high-gain perturbation observer is designed to estimate online the perturbation aggregated from the combinatorial effect of system nonlinearity, parameter uncertainty, unmodelled dynamics and fast time-varying external disturbances. Then the robust passive controller, using the estimated pertur

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Lee, Jeongpyo, Kyungeun Park, and Youngok Kim. "Deep Learning-Based Device-Free Localization Scheme for Simultaneous Estimation of Indoor Location and Posture Using FMCW Radars." Sensors 22, no. 12 (2022): 4447. http://dx.doi.org/10.3390/s22124447.

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Indoor device-free localization (DFL) systems are used in various Internet-of-Things applications based on human behavior recognition. However, the usage of camera-based intuitive DFL approaches is limited in dark environments and disaster situations. Moreover, camera-based DFL schemes exhibit certain privacy issues. Therefore, DFL schemes with radars are increasingly being investigated owing to their efficient functioning in dark environments and their ability to prevent privacy issues. This study proposes a deep learning-based DFL scheme for simultaneous estimation of indoor location and pos

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Wang, Xiangyu, Guipu Li, Shihua Li, and Aiguo Song. "Finite-time output feedback control for a pneumatic servo system." Transactions of the Institute of Measurement and Control 38, no. 12 (2016): 1520–34. http://dx.doi.org/10.1177/0142331216671389.

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In this paper, the position tracking control problem of pneumatic servo systems is investigated. These systems usually have high nonlinearities and unmeasurable piston velocities. Firstly, by using adding a power integrator technique, a global finite-time state feedback controller is proposed. Secondly, based on homogeneous theory, a nonlinear observer is developed to estimate the piston velocity. Finally, the corresponding output feedback controller is derived, which local finite-time stabilizes the position tracking error system. Compared with the conventional backstepping output feedback co

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Fausser, Clément, Nicolas Thiollay, Christophe Destouches, et al. "CEA-JSI Experimental Benchmark for validation of the modeling of neutron and gamma-ray detection instrumentation used in the JSI TRIGA reactor." EPJ Web of Conferences 253 (2021): 04018. http://dx.doi.org/10.1051/epjconf/202125304018.

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Constant improvements of the computational power and methods as well as demands of accurate and reliable measurements for reactor operation and safety require a continuous upgrade of the instrumentation. In particular, nuclear sensors used in nuclear fission reactors (research or power reactors) or in nuclear fusion facilities are operated under intense mixed neutron and gamma-ray fields, and need to be calibrated and modeled to provide selective and accurate neutron and gamma-ray measurements. The French Atomic Energy and Alternative Energies Commission (CEA) and the Jožef Stefan Institute (J

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Kisała, Piotr. "Metrological conditions of strain measurement optoelectronic method by the use of fibre bragg gratings." Metrology and Measurement Systems 19, no. 3 (2012): 471–80. http://dx.doi.org/10.2478/v10178-012-0040-9.

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Abstract This article presents a linear strain measurement method insensitive to temperature variations and using fibre Bragg gratings. Two Bragg gratings were applied with periods selected to obtain partial coverage of their spectrum characteristics. One of the gratings was subjected to a tension strength. Placing both gratings in one thermal chamber allowed - through ensuring the same thermal conditions - to obtain insensitivity of the entire scheme to temperature variations. The gratings were recorded on the same optical fibre and reacted to temperature variations in the same degree. Value

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Wei, Guo-heng, Yan-lin Qin, and Wei Fu. "An Improved Security Authentication Protocol for Lightweight RFID Based on ECC." Journal of Sensors 2022 (February 8, 2022): 1–6. http://dx.doi.org/10.1155/2022/7516010.

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The security, privacy, and operation efficiency of radio frequency identification (RFID) must be fully measured in practical use. A few RFID authentication schemes based on elliptic curve cryptography (ECC) have been proposed, but most of them cannot resist the existing attacks. The scheme presented by Qian et al. could not resist impersonation attack according to our security analysis. Then, we propose a novel lightweight RFID authentication scheme, which is proved that it can resist server spoofing attack, tag masquerade attack, and provide other security properties of a RFID authentication

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Zhang, Xiaoyu, Yanhui Wei, Yuntao Han, Tao Bai, and Kemao Ma. "Design and comparison of LQR and a novel robust backstepping controller for supercavitating vehicles." Transactions of the Institute of Measurement and Control 39, no. 2 (2016): 149–62. http://dx.doi.org/10.1177/0142331215607614.

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Traditional underwater vehicles are limited in speed due to dramatic friction drag on the hull. Supercavitating vehicles exploit supercavitation as a means to reduce drag and increase their underwater speed. Compared with fully wetted vehicles, the non-linearity in the modelling of cavitator, fin and in particular the planing force make the control design of supercavitating vehicles more challenging. Dominant non-linearities associated with planing force are taken into account in the model of supercavitating vehicles in this paper. Two controllers are proposed to realize stable system dynamics

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Ji, Ning, and Jinkun Liu. "Vibration control for the payload at the end of a nonlinear three-dimensional Euler–Bernoulli beam with input constraints." Transactions of the Institute of Measurement and Control 40, no. 10 (2017): 3088–94. http://dx.doi.org/10.1177/0142331217714524.

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In this paper, the vibration control problem for the payload at the end of a three-dimensional Euler–Bernoulli beam in the presence of input constraints and input disturbances is addressed. Disturbance observers are designed to estimate the disturbances on the tip payload. Based on the disturbance observers, a boundary control scheme is designed to suppress elastic vibration for the payload at the end of the beam. The smooth hyperbolic function is applied for the proposed control scheme, which can satisfy physical conditions and input constraints. It is proved that the proposed control scheme

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Lin, Zhonglin, Tianhong Zhang, and Qi Xie. "Intelligent real-time pressure tracking system using a novel hybrid control scheme." Transactions of the Institute of Measurement and Control 40, no. 13 (2017): 3744–59. http://dx.doi.org/10.1177/0142331217730886.

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In this paper, a novel hybrid control scheme is proposed to improve the control performance in a real-time pressure tracking system using fast on-off solenoid valves. In this novel hybrid control scheme, an original approach named Time Interlaced Modulation (TIM) is developed to replace the traditional Pulse Width Modulation (PWM) approach. Besides using TIM, a new switching method which is referred as seven possible control modes is designed to ensure the proper switching states of the valves. Moreover, a controller with field programmable gate array (FPGA) is chosen to guarantee the real-tim

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Wang, Yingxun, Yan Ma, Zhihao Cai, and Jiang Zhao. "Quadrotor trajectory tracking and obstacle avoidance by chaotic grey wolf optimization- based backstepping control with sliding mode extended state observer." Transactions of the Institute of Measurement and Control 42, no. 9 (2020): 1675–89. http://dx.doi.org/10.1177/0142331219894401.

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In this paper, a new swarm intelligent-based backstepping control scheme is proposed for quadrotor trajectory tracking and obstacle avoidance. First, the sliding mode extended state observer (SMESO) is used to estimate different disturbances, and the tracking differentiator (TD) is integrated to enhance the performance of backstepping control scheme. Then, the chaotic grey wolf optimization (CGWO) is developed with chaotic initialization and chaotic search to optimize the parameters of attitude and position controllers. Further, the virtual target guidance approach is proposed for quadrotor tr

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Liu, Wen-Wu, and Chun-Ling Zhang. "Fast excitation fluctuation transfer between two membranes based on transitionless quantum driving." Laser Physics Letters 19, no. 3 (2022): 035202. http://dx.doi.org/10.1088/1612-202x/ac4cc8.

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Abstract In this paper, we introduce a feasible scheme for implementing excitation fluctuation transfer between two membranes in a cavity optomechanical system. The transitionless tracking algorithm allows the system to evolve along a single path, and the process is sped up. Numerical simulations are shown to indicate that, compared with the schemes based on conventional adiabatic passage and Lewis–Riesenfeld invariants, the proposed scheme not only shortens the evolution time but also significantly decreases the negative effects of dissipation arising from membrane damping and cavity decay wi

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Zheng, Shihui, Yuan Tian, Lei Jin, and Yu Yang. "A Portable Random Key Predistribution Scheme for Distributed Sensor Network." Journal of Sensors 2014 (2014): 1–14. http://dx.doi.org/10.1155/2014/394147.

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A distributed sensor network (DSN) can be deployed to collect information for military or civilian applications. However, due to the characteristics of DSNs such as limited power, key distribution for a distributed sensor network is complex. In this paper, a neighbor-based path key establishing method and a seed-based algorithm are put forward to improve the original random key pre-distribution scheme. The new scheme is portable because it is independent of the routing protocol. Moreover, the connectivity of the entire network also approaches 1. In particular, the new scheme can keep high conn

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Kim, Minsu, and Kwangsue Chung. "Reinforcement Learning-Based Adaptive Streaming Scheme with Edge Computing Assistance." Sensors 22, no. 6 (2022): 2171. http://dx.doi.org/10.3390/s22062171.

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Dynamic Adaptive Streaming over HTTP (DASH) is a promising scheme for improving the Quality of Experience (QoE) of users in video streaming. However, the existing schemes do not perform coordination among clients and depend on fixed heuristics. In this paper, we propose an adaptive streaming scheme with reinforcement learning in edge computing environments. The proposed scheme improves the overall QoE of clients and QoE fairness among clients based on a state-of-the-art reinforcement learning algorithm. Edge computing assistance plays a role in providing client-side observations to the mobile

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Kim, Jiye, Jongho Moon, Jaewook Jung, and Dongho Won. "Security Analysis and Improvements of Session Key Establishment for Clustered Sensor Networks." Journal of Sensors 2016 (2016): 1–17. http://dx.doi.org/10.1155/2016/4393721.

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WSN (wireless sensor network) is one of the main technologies in IoT (Internet of Things) applications or services. To date, several schemes have been proposed to establish a pair-wise key between two nodes in WSN, and most of them are designed to establish long-term keys used throughout the network lifetime. However, in the near future, if WSN will be used for information infrastructures in various fields such as manufacturing, distribution, or public facilities management and its life cycle can be as long as that of other common networks, it will definitely be advantageous in terms of securi

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Azimifar, Farhad, Kamran Hassani, Amir Hossein Saveh, and Farhad Tabatabai Ghomshe. "Performance analysis in delayed nonlinear bilateral teleoperation systems by force estimation algorithm." Transactions of the Institute of Measurement and Control 40, no. 5 (2017): 1637–44. http://dx.doi.org/10.1177/0142331216688751.

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This paper establishes a novel control strategy for a nonlinear bilateral teleoperation system with time delay. Besides position and velocity signals, force signals are additionally utilized in the control scheme. This modification significantly improves the poor transparency during contact with the environment. To eliminate the external force measurement, a force estimation algorithm is proposed for the master and slave robots. The closed loop stability of the nonlinear teleoperation system with the proposed control scheme is investigated through the Lyapunov theory. Furthermore, it is theore

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Tomassini, Paolo, Vojtech Horny, and Domenico Doria. "Attosecond Pulses from Ionization Injection Wakefield Accelerators." Instruments 7, no. 4 (2023): 34. http://dx.doi.org/10.3390/instruments7040034.

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High-quality ionization injection methods for wakefield acceleration driven by lasers or charged beams (LWFA/PWFA) can be optimized so as to generate high-brightness electron beams with tuneable duration in the attosecond range. We present a model of the minimum bunch duration obtainable with low-emittance ionization injection schemes by spotting the roles of the ionization pulse duration, of the wakefield longitudinal shape and of the delay of the ionization pulse position with respect to the node of the accelerating field. The model is tested for the resonant multi-pulse ionization injection

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Iwazumi, T. "High-speed ultrasensitive instrumentation for myofibril mechanics measurements." American Journal of Physiology-Cell Physiology 252, no. 2 (1987): C253—C262. http://dx.doi.org/10.1152/ajpcell.1987.252.2.c253.

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A novel instrument for measuring the mechanics of a single myofibril is described. The principle of the transducer operation is to attach a myofibril to a very fine wire suspended in a magnetic field. Feedback circuits pass current through the wire to maintain the length constant when the myofibril contracts. The wire position is measured optoelectronically at a resolution below 1 A. The myofibril measurement system consists of two independent transducers and is capable of resolving tension down to 0.5 ng/square root Hz and controlling the myofibril length with a 10-microseconds rise time. Opt

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Talha, Syed Muhammad Umar, Tariq Mairaj, Waleed Bin Yousuf, and Jawwad Ali Zahed. "Region-Based Segmentation and Wiener Pilot-Based Novel Amoeba Denoising Scheme for CT Imaging." Scanning 2020 (December 13, 2020): 1–12. http://dx.doi.org/10.1155/2020/6172046.

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Computed tomography (CT) is one of the most common and beneficial medical imaging schemes, but the associated high radiation dose injurious to the patient is always a concern. Therefore, postprocessing-based enhancement of a CT reconstructed image acquired using a reduced dose is an active research area. Amoeba- (or spatially variant kernel-) based filtering is a strong candidate scheme for postprocessing of the CT image, which adapts its shape according to the image contents. In the reported research work, the amoeba filtering is customized for postprocessing of CT images acquired at a reduce

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