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Journal articles on the topic 'High-precision means'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Young, A. T. "High-Precision Photometry." International Astronomical Union Colloquium 136 (1993): 80–91. http://dx.doi.org/10.1017/s0252921100007417.

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AbstractThe current precision of differential comparisons, within a fixed instrumental system, reaches about a millimagnitude. The current accuracy of transformations between systems is on the order of 0.01 mag, but is worse in some cases. The transformation errors are due to mis-matches between instrumental and standard systems, and cannot be transformed away without further information. A simple geometric model is proposed, which illuminates the transformation problem, and suggests means of minimizing it. Misplaced band edges are the main cause; tighter specifications on filters will help to

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2

Elssner, Karl-Edmund. "High-precision surface shape testing by means of an interferometric sensor." Optical Engineering 34, no. 9 (1995): 2719. http://dx.doi.org/10.1117/12.205674.

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CAMPOSTRINI, MASSIMO, PAOLO ROSSI, ETTORE VICARI, MARTIN HASENBUSCH, and ANDREA PELISSETTO. "HIGH-PRECISION ESTIMATES OF CRITICAL QUANTITIES BY MEANS OF IMPROVED HAMILTONIANS." International Journal of Modern Physics A 16, no. 11 (2001): 2009–14. http://dx.doi.org/10.1142/s0217751x01004633.

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Three-dimensional spin models of the Ising and XY universality classes are studied by a combination of high-temperature expansions and Monte Carlo simulations applied to improved Hamiltonians. The critical exponents and the critical equation of state are determined to very high precision.

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4

Naumann, R., Ch Alexander-Weber, and F. G. K. Baucke. "High-precision pH measurement by means of electrochemical cells with transference." Fresenius' Journal of Analytical Chemistry 349, no. 8-9 (1994): 639–42. http://dx.doi.org/10.1007/bf00323470.

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Bakalyarov, A. M., and G. V. Muradian. "High-Precision Method for Revealing Hidden Substances by Means of Tagged Neutrons." Physics of Atomic Nuclei 81, no. 6 (2018): 645–55. http://dx.doi.org/10.1134/s1063778818050022.

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Allgeier, Thomas, Heinrich Höfler, and Elmar Wagner. "High precision length measurement by means of multi-sensory laser-feedback interferometry." Optics and Lasers in Engineering 32, no. 6 (1999): 507–14. http://dx.doi.org/10.1016/s0143-8166(99)00072-x.

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Tapson, J. "High precision, short range ultrasonic sensing by means of resonance mode-locking." Ultrasonics 33, no. 6 (1995): 441–44. http://dx.doi.org/10.1016/0041-624x(95)00052-5.

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Warnecke, Peter, Jurgen Niemeyer, Friedrich Wilhelm Dunschede, Lambert Grimm, G. Weimann, and W. Schlapp. "High-precision resistance ratio measurements by means of a novel Josephson potentiometer." IEEE Transactions on Instrumentation and Measurement IM-36, no. 2 (1987): 249–51. http://dx.doi.org/10.1109/tim.1987.6312679.

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Il'in, V. N., N. A. Kobets, and S. V. Leshkov. "X-ray interferometers as a means of super-high-precision metrology (review)." Journal of Applied Spectroscopy 66, no. 4 (1999): 481–92. http://dx.doi.org/10.1007/bf02675374.

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Conway, P. P., E. K. Y. Fu, K. Williams, and D. J. Williams. "Precision high temperature lead-free solder interconnections by means of high-energy droplet deposition techniques." CIRP Annals 51, no. 1 (2002): 177–80. http://dx.doi.org/10.1016/s0007-8506(07)61494-2.

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Walch, Manuel, and Alexander Wörle. "Concave Diffraction Gratings by High-Precision Injection Moulding." Proceedings 2, no. 13 (2019): 717. http://dx.doi.org/10.3390/proceedings2130717.

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As an example of the applicable process chain, a concave grating (1175 grooves/mm) with an active area of approx. 24 mm to 24 mm has been replicated by means of electroplating and further by injection moulding with polycarbonate, resulting in a surface accuracy even below 4 µm peak-to-valley (PV). The obtained moulds were further metallised with bare aluminium to obtain components for optical applications. To our knowledge, this is the first time that such a large nanostructured nonplanar surface has been manufactured by injection moulding in such an accuracy.

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Jäger, Gerd, Eberhard Manske, T. Hausotte, R. Mastylo, N. Dorozhovets, and N. Hofmann. "Traceable Nanometrology Realized by Means of Nanopositioning and Nanomeasuring Machine." Key Engineering Materials 381-382 (June 2008): 565–68. http://dx.doi.org/10.4028/www.scientific.net/kem.381-382.565.

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The today’s nanometrology limits the accuracy of the precision engineering. These limits are based on the meter definition as redefined in 1983. It is proposed to define precision mechatronics as the science and engineering of high level precision systems and machines. The paper describes a precision mechatronic machine. This device represents a long range positioning machine having a resolution of 0.1 nm over the range of 25 mm x 25 mm x 5 mm. The integration of several optical and tactile nanoprobes makes the 3D-nanopositioning suitable for various tasks. New developed nanoprobes (optical fo

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Chen, Shu Wang. "Design of High Precision Sunlight Intensity Measurement Device." Advanced Materials Research 301-303 (July 2011): 1635–38. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.1635.

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Photoelectric detection technology is a kind of new technology of non-contact measure, and it is one of the most important means and methods of modern detection technology. The design of the high precision sunlight intensity measurement device is based on photoelectric detection technology. The sunlight intensity energy is received by the photodiode, and then it is transferred into electrical energy, the current. After the filtration and amplification, the current is converted into digital signal by the ICL7106 A/D converter. Ultimately, the accurate value is displayed on the LED digital tubes

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Shevchuk, R. V., A. I. Manevich, D. Zh Akmatov, D. I. Urmanov, and A. I. Shakirov. "Modern methods, techniques and technical means of monitoring movements of the Earth crust." Mining Industry Journal (Gornay Promishlennost), no. 5/2022 (November 3, 2022): 99–104. http://dx.doi.org/10.30686/1609-9192-2022-5-99-104.

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This article gives an overview of available methods and techniques for geodynamic monitoring, such as the high-precision geometric re-leveling, high-precision linear-angular constructions, high-precision distance measurements, laser scanning, global navigation satellite systems, laser interferometers and strainmeters, radar satellite interferometry. The experience of applying these technologies in different physiographic regions is also described. The tools used in measurements, which provide the maximum achievable accuracy of methods in modern conditions, are demonstrated. A table is made wit

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Bovshin, N. A. "High-precision GNSS-positioning in GSK-2011 reference frame." Geodesy and Cartography 944, no. 2 (2019): 2–14. http://dx.doi.org/10.22389/0016-7126-2019-944-2-2-14.

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The paper deals with a high-precision geodetic network densification by means of GNSS based geodetic solutions, in the view of the fact that the initial data are represented in different reference frames. Indeed, reference station positions are represented in GSK-2011 terrestrial reference frame whereas GNSS satellites` ephemeris are represented in other reference frames, such as ITRFs, WGS84, etc. Two methods are considered in the paper to provide GNSS observations with a correct processing procedure

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Dr. Vasudeva G and Dr Bharathi Gururaj. "Floating Point Unit with High Precision Efficiency." International Journal of Soft Computing and Engineering 15, no. 2 (2025): 24–30. https://doi.org/10.35940/ijsce.b3669.15020525.

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In this paper, we dive into designing a Single Precision Floating Point Unit (FPU), a key player in modern processors. FPUs are essential for handling complex numerical calculations with high precision and a broad range, making them indispensable in scientific research, graphics rendering, and machine learning—our design centers around two main components: the Brent-Kung adder and the radix-4 Booth multiplier. The BrentKung adder is our go-to for fast addition and subtraction. Thanks to its clever parallel-prefix structure, it minimises delays even as the numbers get bigger. For multiplication

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Dr., Vasudeva G. "Floating Point Unit with High Precision Efficiency." International Journal of Soft Computing and Engineering (IJSCE) 15, no. 2 (2025): 24–30. https://doi.org/10.35940/ijsce.B3669.15020525.

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<strong>Abstract:</strong> In this paper, we dive into the design of a Single Precision Floating Point Unit (FPU), a key player in the world of modern processors. FPUs are essential for handling complex numerical calculations with high precision and a broad range, making them indispensable in areas like scientific research, graphics rendering, and machine learning. Our design centers around two main components: the Brent-Kung adder and the radix-4 Booth multiplier. The Brent-Kung adder is our go-to for fast addition and subtraction. Thanks to its clever parallel- prefix structure, it keeps del

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Dr., Vasudeva G. "Floating Point Unit with High Precision Efficiency." International Journal of Soft Computing and Engineering (IJSCE) 15, no. 2 (2025): 24–30. https://doi.org/10.35940/ijsce.B3669.15020525/.

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<strong>Abstract:</strong> In this paper, we dive into designing a Single Precision Floating Point Unit (FPU), a key player in modern processors. FPUs are essential for handling complex numerical calculations with high precision and a broad range, making them indispensable in scientific research, graphics rendering, and machine learning—our design centers around two main components: the Brent-Kung adder and the radix-4 Booth multiplier. The BrentKung adder is our go-to for fast addition and subtraction. Thanks to its clever parallel-prefix structure, it minimises delays even as the numbe

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Ishchenco, D. A., D. L. Fedorchuk, S. D. Ishchenco, and L. M. Maryshchuk. "ASSESSMENT OF THE EFFICIENCY OF USING RADIO ELECTRONIC WARFARE MEASURES FOR COUNTERING HIGH PRECISION WEAPONS AS A COMPONENT OPERATION IN THE ELECTROMAGNETIC SPECTRUM." Проблеми створення, випробування, застосування та експлуатації складних інформаційних систем, no. 23 (December 28, 2022): 62–76. http://dx.doi.org/10.46972/2076-1546.2022.23.05.

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The presence of a significant number of strike systems of high-precision weapons at the enemy causes an urgent need to create effective systems for the protection of infrastructural and military facilities. One of the elements of such systems can be the forces and means of radio-electronic warfare, which will allow to carry out protective actions in the electromagnetic spectrum. But in the current conditions of resource and time limitations, the involvement of electronic warfare means in such protection systems is a certain scientific and practical problem that needs to be solved, in particula

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Sornsuwit, N., Y. Takeuchi, T. Kawai, and K. Sawada. "114 Manufacture of High Precision Diffraction Fresnel Lens by Means of Ultraprecision Turning." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2003 (2003): 69–74. http://dx.doi.org/10.1299/jsmelem.2003.69.

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Carnera, A., and A. V. Drigo. "High precision structural measurements on thin epitaxial layers by means of ion-channeling." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 44, no. 3 (1990): 357–66. http://dx.doi.org/10.1016/0168-583x(90)90651-a.

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Gevorgjan, Roland, Konstantin Svjatokum, Serhii Grygorenko, Kiril Dehtiarenko, and Leonid Gordishevskii. "ANALYSIS OF THE STATE AND PROSPECTS OF THE DEVELOPMENT OF HIGH-PRECISION WEAPON, INCLUDING HIGH-PRECISION MUNITIONS." Collection of scientific works of Odesa Military Academy, no. 15 (September 30, 2021): 28–34. http://dx.doi.org/10.37129/2313-7509.2021.15.28-34.

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This article provides an analysis of modern high-precision armament (artillery), is standing in service with Ukraine and USA. The main specifications of high-precision munitions, the principle of their action and application are given. Modern barrel artillery, with high firepower, rate of fire, maneuverability and the ability to solve a wide range of combat tasks, retains a leading position in the armament system of militarily advanced countries. High fire properties of barrel artillery are provided by constant improvement of all components of its subsystems. In terms of combat potential, the

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Tang, Xin Rui, Miki Yoshinaga, Keiichi Nakamoto, Tohru Ishida, and Yoshimi Takeuchi. "Ultraprecision Microgrooving of Hard Material by Means of Cutting Point Swivel Machining." Key Engineering Materials 447-448 (September 2010): 36–40. http://dx.doi.org/10.4028/www.scientific.net/kem.447-448.36.

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Recently, in accordance with the technical development and miniaturization of the information equipments, the demand of optic elements with high precision and miniaturization is increased. The die is used for manufacturing the optic elements. Thus, it is needed to machine the die with high efficiency and high precision. As the material of die, hard material including cemented carbide and ceramics is used. However, when hard material is machined, there is a problem that severe tool wear occurs, and worn tool shape is transferred into the surface so that precision machining cannot be realized. I

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Cho, Moon-ki, and Yang-ha Chun. "High-Precision Position Protocol for Vehicle to Pedestrian Using 5G Networks." Webology 19, no. 1 (2022): 4648–61. http://dx.doi.org/10.14704/web/v19i1/web19309.

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In a 5G environment, it is possible to provide various services that have not been experienced before based on high-speed, ultra-low latency, high reliability, and ultra-connectivity infrastructure. In particular, intelligent convergence technology that provides high-quality services requires precise location measurement data with a very low error range. This includes high-precision data positioning in self-driving cars. Such a positioning data will enable driverless vehicles to run in a safer and more stable manner. At present, it is possible to measure the exact position of a vehicle through

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Tkachenko, Alexander. "HIGH-PRECISION IN-FLIGHT CALIBRATION USING UNKNOWN LANDMARKS." Journal of Automation and Information sciences 4 (July 1, 2021): 117–24. http://dx.doi.org/10.34229/1028-0979-2021-4-11.

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An in-flight geometric calibration (further — calibration) is interpreted here as a procedure of making more preceise mutual attitude parameters of the onboard imaging camera and the star tracker. The problem of calibration is solved with using of observations of the landmarks from the orbit. In this work, the landmarks are considered as unknown in the sense that they may be identified on the several snapshots, they may be associated with synchronous data of the star tracker and GPS, but their location in the Earth coordinate frame is unknown. While unknown markers are used, it is more complic

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Wang, Qi, Ming Deng, Qi Sheng Zhang, and Rui Yang. "High-Precision Synchronous Implementation during Seismic Data Acquisition." Advanced Materials Research 171-172 (December 2010): 764–68. http://dx.doi.org/10.4028/www.scientific.net/amr.171-172.764.

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Seismic Synchronous acquisition means the Field Digitizer Unit acquiring data of each geophone at the same time. Here we will present a method to realize synchronous data acquisition of which the synchronous process is finished at FDU. A timer will be used to precisely measure the time difference between data transmission in positive direction and that in negative direction. And then work out the delayed time needed by each FDU. In that way, when receiving the command to acquire data synchronously again, the delay time control AD transformation can be well dealt with, so as to realize the purp

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Duan, Jie, Zhi Yong An, and Xiang Yang Sun. "Ground Calibration System Design of High-Precision Star Sensor." Advanced Materials Research 694-697 (May 2013): 1068–73. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.1068.

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In order to meet the high precision calibration requirements of precision angular distance and high magnitude to the optical navigation sensor, A new style of high precision star simulator with large caliber, and long-focus, is presented. And then the main compositions of this simulator are designed in detail referring to the simulator, the steering mirror, the standard simulated targets and so on. According to the simulator characteristics of large size lens and multi lens, the structural of lens cone uses the tube sleeve and inner sleeves fixed together means. To eliminate the mirror deforma

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Vellage, Anne-Katrin, Patrick Müller, Marlen Schmicker, Jens-Max Hopf, and Notger G. Müller. "High Working Memory Capacity at the Cost of Precision?" Brain Sciences 9, no. 9 (2019): 210. http://dx.doi.org/10.3390/brainsci9090210.

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Working memory capacity (WMC) varies tremendously among individuals. Here, we investigate the possibility that subjects with high WMC use this limited resource more efficiently by reducing the precision with which they store information in demanding tasks. Task difficulty was increased by (a) presenting more objects to be memorized, (b) informing subjects only after the encoding phase about the relevant objects, and (c) delivering distracting features at retrieval. Precision was assessed by means of a continuous delayed-estimation task, in which object features had to be estimated from memory.

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Pan, Gong Yu. "Development of High Precision Position Stage and its Performance." Applied Mechanics and Materials 229-231 (November 2012): 592–96. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.592.

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This paper presents a high precision position stage which has the movement range of 0.4 micrometer and 1 nanometer precision. The piezoelectric actuator stage is composed of vertical position control part and horizontal position control part. With the three vertical piezoelectric actuators and three horizontal piezoelectric actuators, the stage can adjust the position in three directions and three angles around. The simulation and experimental results show that the first natural frequencies of the stage in three directions are bigger than 400Hz with the 600kg load, which means that the system

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Popa, Alexandru, Dan Ovidiu Glăvan, Adina Bucevschi, Doina Mortoiu, and Marcelo Calvete Gaspar. "Nonconventional Sources of Movement Used to Obtain High Level Precision Manufacturing." Applied Mechanics and Materials 809-810 (November 2015): 75–80. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.75.

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Since the beginning of industrial era it was clear that the goal of perfect machine is far away. Things become more complicated as the tool machinery branch developed in quite a fast way so things as using full production capacity of a machine or working with adaptive control become normal and frequent. Reaching a good precision in manufacturing was realized by strengthening the structure , with related weight growth and use of more material both generating supplementary costs. Probably the best idea was to create a structure not so rigid , that means lighter ,a structure predictable in the wa

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Sukafona, I. Made, and Emmy Febriani Thalib. "CONTENT BASED IMAGE RETRIEVAL DENGAN METODE COLOR MOMENT DAN K-MEANS." Jurnal RESISTOR (Rekayasa Sistem Komputer) 1, no. 2 (2018): 73–78. http://dx.doi.org/10.31598/jurnalresistor.v1i2.322.

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Content Based Image Retrieval (CBIR) is a research cluster that is very important to overcome problems related to the image search process. The development of internet technology and data communication has caused the number of multimedia images currently circulating to be very high. This study took the Color Moment method to carry out the feature extraction process. Before the feature extraction process, a segmentation process was carried out to separate the background image and the foreground image. Next, each background and front image is stored in the database. Method performance measuremen

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Fernández Velicia, F. J. "High-precision analytic approximations for the Fermi-Dirac functions by means of elementary functions." Physical Review A 34, no. 5 (1986): 4387–95. http://dx.doi.org/10.1103/physreva.34.4387.

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Rosyid, Harunur, Muhammad Modi Bin Lakulu, and Ramlah Bt. Mailok. "Hybrid ABC–K Means for Optimal Cluster Number Determination in Unlabeled Data." Mobile and Forensics 6, no. 2 (2024): 52–65. http://dx.doi.org/10.12928/mf.v6i2.11529.

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This study presents the ABC K Means GenData algorithm, an enhancement over traditional K Means clustering that integrates the Artificial Bee Colony (ABC) optimization approach. The ABC K Means GenData algorithm addresses the issue of local optima commonly encountered in standard K Means algorithms, offering improved exploration and exploitation strategies. By utilizing the dynamic roles of employed, onlooker, and scout bees, this approach effectively navigates the clustering space for categorical data. Performance evaluations across several datasets demonstrate the algorithm's superiority. For

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Vigner, Vojtech, and Jaroslav Roztocil. "Fast Comparison of High-Precision Time Scales Using GNSS Receivers." International Journal of Navigation and Observation 2017 (October 24, 2017): 1–4. http://dx.doi.org/10.1155/2017/9176174.

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Comparison of high-performance time scales generated by atomic clocks in laboratories of time and frequency metrology is usually performed by means of the Common View method. Laboratories are equipped with specialized GNSS receivers which measure the difference between a local time scale and a time scale of the selected satellite. Every receiver generates log files in CGGTTS data format to record measured differences. In order to calculate time differences recorded by two receivers, it is necessary to obtain these logs from both receivers and process them. This paper deals with automation and

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Zhao, Ping, Wen Zhen Zhao, and Zhen Yun Duan. "A Calibration Method for High Precision Vision Measurement System." Applied Mechanics and Materials 543-547 (March 2014): 1005–8. http://dx.doi.org/10.4028/www.scientific.net/amm.543-547.1005.

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In order to realize precision measurement for the computer vision measurement system, a system comprehensive calibration method based on straight line imaging characteristics is proposed. The method uses parallel straight line edges of general 00 level gauge groups to comprehensively calibrate the measurement system. It establishes the calibration function that describes the corresponding relationship between the imaging point location and space point position, and then determines the coefficient of the calibration function according to the linear characteristic of gauge block measurement surf

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Huang, Xueqi, and Jinzhu Huang. "Research and Design of Network RTK High-precision Positioning and Computer Vision Service Platform Based on Beidou." Journal of Industry and Engineering Management 2, no. 1 (2024): 1–6. http://dx.doi.org/10.62517/jiem.202403101.

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Beidou RTK (real-time kinematic) high-precision positioning is based on the Beidou Satellite Navigation System, utilizing differential processing techniques with ground-based augmentation systems, reference stations, and other means to achieve high-precision positioning. It has a wide range of application prospects. Integrating Beidou RTK high-precision positioning with computer vision, a service platform based on Beidou RTK high-precision positioning and computer vision is constructed. This will further expand the application areas of the Beidou Satellite Navigation System. This article, base

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Niichter, W., A. L. Weickenmeier, and J. Mayer. "High precision measurement of Debye-Waller factors for NiAl." Proceedings, annual meeting, Electron Microscopy Society of America 53 (August 13, 1995): 140–41. http://dx.doi.org/10.1017/s0424820100137070.

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Motivation Quantitative convergent beam electron diffraction (CBED) is increasingly appreciated as a tool to determine bonding charge densities of crystalline materials. Simulated CBED patterns are fitted to experimental ones to derive the structure factors. These are converted by means of the Mott formula to yield the total charge density. Finally a neutral atom total charge density is subtracted and the difference is interpreted as the bonding charge density. Accounting for the temperature by a Debye-Waller factor (DWF) the g-th Fourier coefficient of the bonding charge density is then given

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Ciocan, Vasile-Cătălin, Rajdeep Das, and Nicolae-Lucian Voinea. "Study Regarding the Education of Speed Through Specific Basketball Means and Methods in High School Pupils." GYMNASIUM 23, no. 2 (2022): 86–105. http://dx.doi.org/10.29081/gsjesh.2022.23.2.06.

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Basketball is one of the most important sports in the world in regards to the number of spectators, viewers, and number of players worldwide. The purpose of this study was to determine the elements influencing the speed and shooting precision in high school students that have practiced basketball as an extracurricular activity. The subjects were 25 pupils aged 16-17, from the Gheorghe Vrânceanu High School of Bacau. They practiced basketball as an extracurricular activity over the course of 4 weeks, 3 times per week, playing two dynamic games, "Left-Right-Up" and "Colors", in order to see whet

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SARUWATARI, Shogo, Yoshinobu YAMAMOTO, and Yoshiyuki TSUJI. "0508 Precision of Large-Scale Structures in High-Re Channel Flow by Means of LES." Proceedings of the Fluids engineering conference 2013 (2013): _0508–01_—_0508–02_. http://dx.doi.org/10.1299/jsmefed.2013._0508-01_.

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De Tommasi, E., G. Casa та L. Gianfrani. "High precision determinations of NH3 concentration by means of diode laser spectrometry at 2.005 μm". Applied Physics B 85, № 2-3 (2006): 257–63. http://dx.doi.org/10.1007/s00340-006-2322-y.

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Zuhanda, Muhammad Khahfi, Kelvin Leonardi Kohsasih, Pieter Octaviandy, et al. "Hybrid Deep Fixed K-Means (HDF-KMeans)." International Journal of Engineering, Science and Information Technology 5, no. 3 (2025): 102–11. https://doi.org/10.52088/ijesty.v5i3.913.

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K-Means is one of the most widely used clustering algorithms due to its simplicity, scalability, and computational efficiency. However, its practical application is often hindered by several well-known limitations, such as high sensitivity to initial centroid selection, inconsistency across different runs, and suboptimal performance when dealing with high-dimensional or non-linearly separable data. This study introduces a hybrid clustering algorithm named Hybrid Deep Fixed K-Means (HDF-KMeans) to address these issues. This approach combines the advantages of two state-of-the-art techniques: De

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Jiang, X. G., and D. Y. Zhang. "Design of High Precision Power Supply for Low-Frequency Vibration Cutting." Materials Science Forum 471-472 (December 2004): 494–97. http://dx.doi.org/10.4028/www.scientific.net/msf.471-472.494.

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The frequency of piezoelectric transducer requires high stability and can also be continuously changed. The voltage requires smooth and stable sine wave. To the two problems, a high precision power supply for vibration cutting is designed. It divides the whole frequency band into several small bands. By means of CPLD, the sine wave is digitally fitted individually at each small band. So the sine wave can be always suitable at a wide frequency band. At the power output, OCL power amplifier is adopted. The output sine voltage becomes smooth and stable by adding voltage negative feedback to the p

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LAPORTA, S. "HIGH-PRECISION CALCULATION OF MULTILOOP FEYNMAN INTEGRALS BY DIFFERENCE EQUATIONS." International Journal of Modern Physics A 15, no. 32 (2000): 5087–159. http://dx.doi.org/10.1142/s0217751x00002159.

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We describe a new method of calculation of generic multiloop master integrals based on the numerical solution of systems of difference equations in one variable. We show algorithms for the construction of the systems using integration-by-parts identities and methods of solutions by means of expansions in factorial series and Laplace transformation. We also describe new algorithms for the identification of master integrals and the reduction of generic Feynman integrals to master integrals, and procedures for generating and solving systems of differential equations in masses and momenta for mast

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Meng, Zhang, Yan Wen, Li Tao, Jiang Wei, and Wang Shuai. "Application of the Magnetostrictive Displacement Sensor in the Self-Propelled Artillery in the Performance Test." Advanced Materials Research 940 (June 2014): 99–102. http://dx.doi.org/10.4028/www.scientific.net/amr.940.99.

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Introducing the principle, which the magnetostrictive displacement sensor is based on, and the gauging to small shifting is given in this paper. These sensor possess the peculiarities of high precision, long-life and easy to assemble. The gauging to small shifting belongs to the major characteristics test to artillery. On account of the faultiness existing testing means, this method is submitted to the characteristics test of artillery. Which magnetostrictive displacement sensor is applied to the shifting measure. By means of tests, the conclusion could be given that this method is easy to ope

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Tang, Jing, Ting Zhang, Zeyu Gong, and Xianjun Huang. "High Precision Cervical Precancerous Lesion Classification Method Based on ConvNeXt." Bioengineering 10, no. 12 (2023): 1424. http://dx.doi.org/10.3390/bioengineering10121424.

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Traditional cervical cancer diagnosis mainly relies on human papillomavirus (HPV) concentration testing. Considering that HPV concentrations vary from individual to individual and fluctuate over time, this method requires multiple tests, leading to high costs. Recently, some scholars have focused on the method of cervical cytology for diagnosis. However, cervical cancer cells have complex textural characteristics and small differences between different cell subtypes, which brings great challenges for high-precision screening of cervical cancer. In this paper, we propose a high-precision cervic

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Xu, Hanwei, Zizhou Sun, Yifan Dai, Chaoliang Guan, and Hao Hu. "In Situ Measurement and Reconstruction Technology of Cylindrical Shape of High-Precision Mandrel." Micromachines 14, no. 6 (2023): 1240. http://dx.doi.org/10.3390/mi14061240.

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The technology of in situ measurement of cylindrical shapes is an important means of improving the surface machining accuracy of cylindrical workpieces. As a method of cylindricity measurement, the principle of the three-point method has not been fully studied and applied, so it is seldom used in the field of high-precision cylindrical topography measurement. Since the three-point method has the advantages of a simpler measurement structure and smaller system error compared with other multi-point methods, the research on it is still of great significance. Based on the existing research results

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АЮПОВ Б.А., АЮПОВ Б. А., БАТУРИН В. А. БАТУРИН В.А., ЛАТЫПОВ Н. И. ЛАТЫПОВ Н.И., et al. "FINANCIAL ANALYSIS OF OWNERSHIP OF HIGH-PRECISION HYPERSONIC WEAPONS." Экономика и предпринимательство, no. 4(165) (June 25, 2024): 1043–46. http://dx.doi.org/10.34925/eip.2024.165.4.208.

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Непрекращающееся развитие науки и техники способствует совершенствованию существующих и созданию новых видов вооружений и средств борьбы с ними. Высокоточное гиперзвуковое оружие - разработка, за которой сегодня гонятся ведущие мировые державы. Статья посвящена экономическому сравнению на реальных примерах затрат на разработку, создание и эксплуатацию такого вида вооружений с прямыми и косвенными выгодами от владения им. Среди прямых выгод выделяется непосредственный урон технике, инфраструктуре, живой силе противника, среди косвенных - возможность превентивного сдерживания и деморализующее во

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Wang, Fu Qiang, Zhi Yuan Rui, Dong Ping Zhao, and Chun Li Lei. "Structural Dynamic Analysis and Optimization of High-Speed Precision Machining Center Column." Advanced Materials Research 655-657 (January 2013): 48–51. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.48.

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The theory of structural dynamic analysis is put forward firstly. Then the dynamic performance of HMC80 high-speed precision machining center column is analyzed by means of finite element method. The dynamic performance of the column is analyzed using structural dynamic optimization theory and variation analysis with the thickness of wall plate and the inner rib plates as the parameters thirdly. Based on the analysis results, the structure optimization scheme of the column is obtained. The structure optimization scheme is analyzed and the analysis results show that the dynamic performance of t

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Kato, Kenichi, and Kazuya Shigeta. "High-Precision X-ray Total Scattering Measurements Using a High-Accuracy Detector System." Condensed Matter 7, no. 1 (2021): 2. http://dx.doi.org/10.3390/condmat7010002.

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The total scattering method, which is based on measurements of both Bragg and diffuse scattering on an equal basis, has been still challenging even by means of synchrotron X-rays. This is because such measurements require a wide coverage in scattering vector Q, high Q resolution, and a wide dynamic range for X-ray detectors. There is a trade-off relationship between the coverage and resolution in Q, whereas the dynamic range is defined by differences in X-ray response between detector channels (X-ray response non-uniformity: XRNU). XRNU is one of the systematic errors for individual channels,

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Seidaliev, R. S., R. D. Kurmanov, A. A. Fukala, and E. Sh Dzhemilov. "Experimental research on cutting fluids and technological means influence on contact processes during face milling." Bulletin Sukhoi State Technical University of Gomel, no. 1 (March 26, 2024): 23–28. http://dx.doi.org/10.62595/1819-5245-2024-1-23-28.

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Authors present a methodology for a comprehensive study of the drilling operation using high-precision and high-speed sensors to obtain information adequate to the ongoing process. This information allows to take readings of several parameters using cutting fluids and technological means during one pass of the tool

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