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Journal articles on the topic 'Shift correction'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Delhaye, Robert, Volker Rath, Alan G. Jones, Mark R. Muller, and Derek Reay. "Correcting for static shift of magnetotelluric data with airborne electromagnetic measurements: a case study from Rathlin Basin, Northern Ireland." Solid Earth 8, no. 3 (2017): 637–60. http://dx.doi.org/10.5194/se-8-637-2017.

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Abstract. Galvanic distortions of magnetotelluric (MT) data, such as the static-shift effect, are a known problem that can lead to incorrect estimation of resistivities and erroneous modelling of geometries with resulting misinterpretation of subsurface electrical resistivity structure. A wide variety of approaches have been proposed to account for these galvanic distortions, some depending on the target area, with varying degrees of success. The natural laboratory for our study is a hydraulically permeable volume of conductive sediment at depth, the internal resistivity structure of which can

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Hou, Yujian, Qiyun Jiang, Yan Qiao, Yunsheng Zhao, and Zhanxiang He. "Static Shift Correction and Fractal Characteristic Analysis of Time-Frequency Electromagnetic Data." Fractal and Fractional 9, no. 4 (2025): 240. https://doi.org/10.3390/fractalfract9040240.

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The static shift effect is a distortion in electromagnetic data that severely impacts exploration results. Traditional static effect correction methods are often ineffective, prone to overcorrection or undercorrection, and make it difficult to accurately assess the applicability of the correction. Furthermore, some correction processes require additional data, which increases correction costs. This paper first presents the theoretical foundation for correcting static shift effects in the electric field components using magnetic field component information. Based on time-frequency electromagnet

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Hikmat, N. Abdullah, R. Saeed Thamir, and H. Sahar Asaad. "Efficient error correcting scheme for chaos shift keying signals." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 5 (2019): 3550–57. https://doi.org/10.11591/ijece.v9i5.pp3550-3557.

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An effective error-correction scheme based on normalized correlation for a non coherent chaos communication system with no redundancy bits is proposed in this paper. A modified logistic map is used in the proposed scheme for generating two sequences, one for every data bit value, in a manner that the initial value of the next chaotic sequence is set by the second value of the present chaotic sequence of the similar symbol. This arrangement, thus, has the creation of successive chaotic sequences with identical chaotic dynamics for error correction purpose. The detection symbol is performed prio

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Abdullah, Hikmat N., Thamir R. Saeed, and Asaad H. Sahar. "Efficient error correcting scheme for chaos shift keying signals." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 5 (2019): 3550. http://dx.doi.org/10.11591/ijece.v9i5.pp3550-3557.

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An effective error-correction scheme based on normalized correlation for a non coherent chaos communication system with no redundancy bits is proposed in this paper. A modified logistic map is used in the proposed scheme for generating two sequences, one for every data bit value, in a manner that the initial value of the next chaotic sequence is set by the second value of the present chaotic sequence of the similar symbol. This arrangement, thus, has the creation of successive chaotic sequences with identical chaotic dynamics for error correction purpose. The detection symbol is performed prio

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Piotrowski, Tomasz, Krzysztof Kaczmarek, Agata Jodda, et al. "Image guidance procedures in radiotherapy for prostate cancer and the influence of body mass index." Journal of Radiotherapy in Practice 13, no. 4 (2014): 410–17. http://dx.doi.org/10.1017/s1460396914000193.

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AbstractPurposeTo investigate possible optimisation of the image guidance procedure for the prostate cancer patients with respect to imaging frequency and patient body mass index (BMI).MethodsThe 6,085 setup correction shifts and BMI for 216 prostate cancer patients treated on tomotherapy units in two centres were analysed. Margins needed to account for inter-fraction target motion with daily only automatic correction and with automatic and manual corrections during one, three or five first fractions as a reference for further treatment without imaging were calculated.ResultsThe planning targe

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Reichenbach, Alexandra, Angela Costello, Peter Zatka-Haas, and Jörn Diedrichsen. "Mechanisms of responsibility assignment during redundant reaching movements." Journal of Neurophysiology 109, no. 8 (2013): 2021–28. http://dx.doi.org/10.1152/jn.01052.2012.

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When the two hands act together to achieve a goal, the redundancy of the system makes it necessary to distribute the responsibility for error corrections across the two hands. In an experiment in which participants control a single cursor with the movements of both hands, we show that right-handed individuals correct for movement errors more with their nondominant left hand than with their right hand, even though the dominant right hand corrects the same errors more quickly and efficiently when each hand acts in isolation. By measuring the responses to rapid cursor and target displacements usi

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Jalilov, Ya R., V. Q. Verdiyev, and T. Y. Jalilov. "Application of Cross-Section Corrective («Translation») Forces at Surgical Treatment for Scoliosis." N.N. Priorov Journal of Traumatology and Orthopedics 19, no. 3 (2012): 14–19. http://dx.doi.org/10.17816/vto20120314-19.

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Surgical treatment results for 53 patients with III—IV stage of scoliosis are presented. In all patients original endocorrector has been applied. Endocorrector is based on the application of cross-section corrective («translation effect») forces that enable to shift the vertebrae of the main scoliotic arch to the median line of the trunk. Endocorrector was the most effective in curvature arch under 75° and provided 35—45° correction. Mathematic modeling of a situation «endocor- rector—curved spine» was performed as well as the pattern of forces created by endocorrector and participated in the

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Martin, David, Rui Xu, and Meaghan O'Reilly. "Simulation-corrected focusing to the vertebral canal." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A248. http://dx.doi.org/10.1121/10.0027389.

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Phased arrays have long been used to deliver focused ultrasound to the brain, but applications in the spinal cord remain comparatively unexplored. This is largely due to the aberrating effect of vertebral bone on the incoming wavefront, where variable density and complex geometry distort the pressure field in the canal. For controlled focusing, phase and amplitude corrections must therefore be calculated in advance. Here, we validate a previously-developed ray acoustics model for transvertebral focusing with a bilateral spine-specific array. Benchtop trials were conducted with ex vivo human ve

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Wu, Jinfei, Juan Zhai, Wanchang Lai, et al. "Nonlinear Correction Methods of Temperature-Caused Peak Shift for a NaI(Tl) Gamma-Ray Spectrometer." Journal of Spectroscopy 2023 (February 13, 2023): 1–10. http://dx.doi.org/10.1155/2023/1590667.

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NaI(Tl) detectors are frequently operated under unstable temperature conditions when used in an open environment. Temperature changes would result in a peak shift and spectral distortion during measurement. Two easy-to-implement methodologies are proposed to stabilize the measured spectrum without the necessity of adjusting the gain, which are a correction algorithm for temperature-caused peak-shift based on multiple characteristic peak area weighting factors and an interpolation correction algorithm based on multicharacteristic peak sequence. Both of them can be used when the relative channel

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10

Schilling, Jim, Seung-Taek Lim, and Eunjae Lee. "Correcting Postural Deviations: An Evidence- Supported Shift in Paradigm." Asian Journal of Kinesiology 24, no. 4 (2022): 16–24. http://dx.doi.org/10.15758/ajk.2022.24.4.16.

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Somatic syndromes of the spinal region may develop secondary to postural dysfunction. Traditionally, emphasis has been placed on correcting postural asymmetries by attempting to change muscle-tendon unit length. The effectiveness of this approach in providing prolonged muscle-tendon unit length changes and optimal postural outcomes has met with controversy. The time has come for a redirection of goals in conservative care for postural dysfunction of the spinal regions. An emphasis needs to be placed on continuous, self-awareness training of postural correction that will facilitate lasting neur

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Milewski, Andrew, and Guang Li. "Stability and Reliability of Enhanced External-Internal Motion Correlation via Dynamic Phase-Shift Corrections Over 30-min Timeframe for Respiratory-Gated Radiotherapy." Technology in Cancer Research & Treatment 21 (January 2022): 153303382211115. http://dx.doi.org/10.1177/15330338221111592.

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To assess the stability of patient-specific phase shifts between external- and internal-respiratory motion waveforms, the reliability of enhanced external–internal correlation with phase-shift correction, and the feasibility of guiding respiratory-gated radiotherapy (RGRT) over 30 min. In this clinical feasibility investigation, external bellows and internal-navigator waveforms were simultaneously and prospectively acquired along with two four-dimensional magnetic resonance imaging (4DMRI) scans (6–15 m each) with 15–20 m intervals in 10 volunteers. A bellows was placed 5 cm inferior to the xi

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Liu, Yong Gang, Da Tong Qin, Zhen Zhen Lei, and Rui Ding. "Intelligent Correction of Shift Schedule for Dual Clutch Transmissions Based on Different Driving Conditions." Applied Mechanics and Materials 121-126 (October 2011): 3982–87. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.3982.

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This paper focuses on intelligent correction of shift schedule for dual clutch transmissions based on different driving conditions. The problem of standard shift schedule has been presented, and the strategy has also been proposed to avoid shift hunting and unexpected shift. The driver’s intention and driving environment have been unified recognized as different driving conditions. A fuzzy logic technology has been used in driver’s attention recognition based on the throttle opening and its derivative. The standard shift schedule has been intelligently corrected at different driving condition

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Stieglitz, Lennart Henning, Christian Ayer, Kaspar Schindler, Markus Florian Oertel, Roland Wiest, and Claudio Pollo. "Improved Localization of Implanted Subdural Electrode Contacts on Magnetic Resonance Imaging With an Elastic Image Fusion Algorithm in an Invasive Electroencephalography Recording." Operative Neurosurgery 10, no. 4 (2014): 506–13. http://dx.doi.org/10.1227/neu.0000000000000473.

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Abstract BACKGROUND: Accurate projection of implanted subdural electrode contacts in presurgical evaluation of pharmacoresistant epilepsy cases by invasive electroencephalography is highly relevant. Linear fusion of computed tomography and magnetic resonance images may display the contacts in the wrong position as a result of brain shift effects. OBJECTIVE: A retrospective study in 5 patients with pharmacoresistant epilepsy was performed to evaluate whether an elastic image fusion algorithm can provide a more accurate projection of the electrode contacts on the preimplantation magnetic resonan

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14

Li, Wenlei. "Comparative Analysis of Channel Coding in Communication Technology." Highlights in Science, Engineering and Technology 97 (May 28, 2024): 14–20. http://dx.doi.org/10.54097/04ym7q90.

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The performance analysis of Binary Phase Shift Keying (BPSK) and Quadrature Phase Shift Keying (QPSK) employing error-correcting code is highlighted in this work. Several error-correcting code types were employed via an Additive White Gaussian Noise (AWGN) channel to determine the bit error rate. Two techniques were utilized as encoders and decoders: hamming code and cyclic code. Source coding used Huffman coding. Essentially, signal energy to noise power density ratio (Eb/No) and the bit rate error (BER) were used to measure performance. Comparisons were also made between BPSK and QPSK in ter

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Admon, Uri. "Specimen shift correction in tilting experiments." Ultramicroscopy 21, no. 3 (1987): 297. http://dx.doi.org/10.1016/0304-3991(87)90156-2.

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Reinertsen, Ingerid, Frank Lindseth, Christian Askeland, Daniel Høyer Iversen, and Geirmund Unsgård. "Intra-operative correction of brain-shift." Acta Neurochirurgica 156, no. 7 (2014): 1301–10. http://dx.doi.org/10.1007/s00701-014-2052-6.

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17

Black, James L., and Matthew A. Brzostowski. "Systematics of time‐migration errors." GEOPHYSICS 59, no. 9 (1994): 1419–34. http://dx.doi.org/10.1190/1.1443699.

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Even if the correct velocity is used, time migration mispositions events whenever the velocity changes laterally. These errors increase with lateral velocity variation, depth of burial, and dip angle θ. Our analyses of two model types, one with an implicit gradient and one with an explicit gradient, yield simple “rules of thumb” for these errors to first order in the lateral gradient. The x error is [Formula: see text], and the z error is [Formula: see text], where the quantity A = A(x, z) contains the information about depth of burial and magnitude of lateral gradient. These rules can be used

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18

Kruzhilko, Oleg, Natalia Volodchenkova, and Oleksii Polukarov. "Scientific Substantiation of the Work Shift Structure Correction of Granite Quarry Workers." Trends in Ecological and Indoor Environmental Engineering 1, no. 1 (2023): 35–40. http://dx.doi.org/10.62622/teiee.023.1.1.35-40.

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In Ukraine, more than 70 % of mining operations are carried out in quarries. The mining industry has negative impacts on society, especially workers in the industry. The International Labour Organization states that the mining sector is one of the most dangerous sectors in the world. The current study was designed to understand the occupational safety and health situation in the mining industry at the granite quarries in Ukraine, because the exceeding accepted standards for factors of the production environment and labour process contributes to the development of occupational diseases. The stu

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Sternberg, Ben K., James C. Washburne, and Louise Pellerin. "Correction for the static shift in magnetotellurics using transient electromagnetic soundings." GEOPHYSICS 53, no. 11 (1988): 1459–68. http://dx.doi.org/10.1190/1.1442426.

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Shallow inhomogeneities can lead to severe problems in the interpretation of magnetotelluric (MT) data by shifting the MT apparent resistivity sounding curve by a scale factor, which is independent of frequency on the standard log‐apparent‐resistivity versus log‐frequency display. The amount of parallel shift, commonly referred to as the MT static shift, can not be determined directly from conventionally recorded MT data at a single site. One method for measuring the static shift is a controlled‐source measurement of the magnetic field. Unlike the electric field, the magnetic field is relative

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20

Yang, Mou, Hai-Yan Li, and Rui-Qiang Wang. "Negative group delay of reflected Weyl quasiparticles." New Journal of Physics 23, no. 11 (2021): 113024. http://dx.doi.org/10.1088/1367-2630/ac3443.

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Abstract When an electron is incident from a Weyl material to an insulator and totally reflected, it suffers a reflection group delay and a reflection shift (Goos–Hänchen and/or Imbert–Fedorov shifts). We found the group delay is negative for half of the incident states. The negative group delay does not mean the electron is bounced back before its injection, but is an effective acceleration of the electron near the interface induced by self-interference. The reflection shift orients circulating the points at which the surface-bulk state transition occurs. The reflection shift and the group de

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21

Jiao, Weijian, and Stefano Gonella. "Wavenumber-space band clipping in nonlinear periodic structures." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 477, no. 2251 (2021): 20210052. http://dx.doi.org/10.1098/rspa.2021.0052.

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In weakly nonlinear systems, the main effect of cubic nonlinearity on wave propagation is an amplitude-dependent correction of the dispersion relation. This phenomenon can manifest either as a frequency shift or as a wavenumber shift depending on whether the excitation is prescribed as an initial condition or as a boundary condition, respectively. Several models have been proposed to capture the frequency shifts observed when the system is subjected to harmonic initial excitations. However, these models are not compatible with harmonic boundary excitations, which represent the conditions encou

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Leonard, Julia A., Valeriya Gritsenko, Ryan Ouckama, and Paul J. Stapley. "Postural adjustments for online corrections of arm movements in standing humans." Journal of Neurophysiology 105, no. 5 (2011): 2375–88. http://dx.doi.org/10.1152/jn.00944.2010.

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The aim of this study was to investigate how humans correct ongoing arm movements while standing. Specifically, we sought to understand whether the postural adjustments in the legs required for online corrections of arm movements are predictive or rely on feedback from the moving limb. To answer this question we measured online corrections in arm and leg muscles during pointing movements while standing. Nine healthy right-handed subjects reached with their dominant arm to a visual target in front of them and aligned with their midline. In some trials, the position of the target would switch fr

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Pachucki, K., D. Leibfried, and T. W. Hänsch. "Nuclear-structure correction to the Lamb shift." Physical Review A 48, no. 1 (1993): R1—R4. http://dx.doi.org/10.1103/physreva.48.r1.

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Pachucki, Krzysztof. "Radiative recoil correction to the Lamb shift." Physical Review A 52, no. 2 (1995): 1079–85. http://dx.doi.org/10.1103/physreva.52.1079.

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Lee, Soo‐Y. "Energy shift correction for the reflection approximation." Journal of Chemical Physics 82, no. 10 (1985): 4588–94. http://dx.doi.org/10.1063/1.448716.

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MAZIASHVILI, MICHAEL, and ZURAB SILAGADZE. "QUANTUM GRAVITATIONAL CORRECTIONS TO THE HYDROGEN ATOM AND HARMONIC OSCILLATOR." International Journal of Modern Physics D 19, no. 02 (2010): 137–51. http://dx.doi.org/10.1142/s0218271810016348.

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It is shown that the rate of corrections to the hydrogen atom and harmonic oscillator energy levels due to the profound quantum gravitational effect of space–time dimension running/reduction coincides well with those obtained by means of minimum-length-deformed quantum mechanics. The rate of corrections is pretty much the same within the accuracy with which we can judge the quantum gravitational corrections at all. Such a convergence of results makes the concept of space–time dimension running more appreciable. As a remarkable distinction, the energy shift due to dimension reduction has the op

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Dong, C., F. Wu, and H. Chen. "Correction of zero shift in powder diffraction patterns using the reflection-pair method." Journal of Applied Crystallography 32, no. 5 (1999): 850–53. http://dx.doi.org/10.1107/s0021889899007396.

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Zero shifts of 2θ usually represent one of the most serious systematic errors in powder patterns obtained by diffractometers, and they cannot be readily diagnosed and corrected. Frequently, large zero shifts hinder indexing of the patterns. Programs exist to refine the lattice constants and calculate the zero shift, but they need the indexing results. We have derived an equation, based on the reflection-pair method, to calculate and correct the zero shift before indexing. The equation has been tested on many experimental data and the effectiveness of the method has been confirmed. The method i

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Nyska, Meir, Hans-Jörg Trnka, Brent G. Parks, and Mark S. Myerson. "Proximal Metatarsal Osteotomies: A Comparative Geometric Analysis Conducted on Sawbone Models." Foot & Ankle International 23, no. 10 (2002): 938–45. http://dx.doi.org/10.1177/107110070202301009.

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We evaluated the change in position of the first metatarsal head using a three-dimensional digitizer on sawbone models. Crescentic, closing wedge, oblique shaft (Ludloff 8° and 16°), reverse oblique shaft (Mau 8° and 16°), rotational “Z” (Scarf), and proximal chevron osteotomies were performed and secured using 3-mm screws. The 16° Ludloff provided the most lateral shift (9.5 mm) and angular correction (14.5°) but also produced the most elevation (1.4 mm) and shortening (2.9 mm). The 8° Ludloff provided lateral and angular corrections similar to those of the crescentic and closing wedge osteot

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Ash, Konstantin, and Kevin Mazur. "Identifying and Correcting Signal Shift in DMSP-OLS Data." Remote Sensing 12, no. 14 (2020): 2219. http://dx.doi.org/10.3390/rs12142219.

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Defense Meteorological Satellite Program Operational Linescan System (DMSP-OLS) nighttime light data has become a key tool of the environmental and social scientific fields, but suffers from several validity problems. We highlight one such problem—shifts in the digital number position in DMSP-OLS composites in the same satellite. We present techniques for identifying the problem, using moving window raster correlation and visual inspection, and for solving the problem, by assigning control points and manually shifting raster positions. To illustrate the importance of accounting for signal shif

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CASTELLANOS, E., and T. MATOS. "KLEIN–GORDON FIELDS AND BOSE–EINSTEIN CONDENSATES: THERMAL BATH CONTRIBUTIONS." International Journal of Modern Physics B 27, no. 11 (2013): 1350060. http://dx.doi.org/10.1142/s0217979213500604.

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We analyze the consequences caused by a thermal bath upon the properties associated to the symmetry breaking of scalar fields with one-loop correction potential. Concerning the nonrelativistic regime associated with the aforementioned system, we calculate the shift in the condensation temperature caused by the thermal bath, assuming a harmonic oscillator type potential. We prove that the shift in the condensation temperature depends on the associated scale of the system. In addition, we obtain bounds associated to the scale that could lead to relevant corrections on the condensation temperatur

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Pellerin, Louise, and Gerald W. Hohmann. "Transient electromagnetic inversion: A remedy for magnetotelluric static shifts." GEOPHYSICS 55, no. 9 (1990): 1242–50. http://dx.doi.org/10.1190/1.1442940.

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Surficial bodies can severely distort magnetotelluric (MT) apparent resistivity data to arbitrarily low frequencies. This distortion, known as the MT static shift, is due to an electric field generated from boundary charges on surficial inhomogeneities, and persists throughout the entire MT recording range. Static shifts are manifested in the data as vertical, parallel shifts of log‐log apparent resistivity sounding curves, the impedance phase being unaffected. Using a three‐dimensional (3-D) numerical modeling algorithm, simulated MT data with finite length electrode arrays are generated. Sig

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Peubey, Carole, and William Bell. "The Influence of Frequency Shifts in Microwave Sounder Channels on NWP Analyses and Forecasts." Journal of Atmospheric and Oceanic Technology 31, no. 4 (2014): 788–807. http://dx.doi.org/10.1175/jtech-d-13-00016.1.

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Abstract The sensitivity of numerical weather prediction (NWP) analysis and forecast accuracies with respect to frequency shifts in microwave passbands is quantified through a series of observing system experiments using the ECMWF Integrated Forecast System. First, a parameterization is developed to describe the form and magnitude of the brightness temperature errors arising from frequency shifts in Advanced Microwave Sounding Unit-A (AMSU-A) channels 4–10 and Microwave Humidity Sounder (MHS) channels 3–5. Observing system experiments are then run in which realistic synthetic brightness temper

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Chen, Peixuan, Yiting Liu, Rutao Chen, Sitao Huo, and Tianyi Wu. "30‐2: Global color correction of micro‐LED display at high temperature." SID Symposium Digest of Technical Papers 56, S1 (2025): 275–78. https://doi.org/10.1002/sdtp.18782.

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Micro‐LED displays have demonstrated significant potential due to their high brightness, high contrast ratio, and low power consumption. However, noticeable color shifts occur in Micro‐LED displays under elevated temperatures. To address this issue, we propose a color correction method utilizing a temperature‐dependent compensation algorithm. Experimental validation indicates that the color shift can be reduced to below 2 JNCD within the temperature range of 35°C to 75°C. Furthermore, the smoothness of color correction is enhanced through an interpolation algorithm.

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Stavek, Jiri. "On the Trigonometric Description of the Michelson-Morley Experiment." Applied Physics Research 8, no. 4 (2016): 134. http://dx.doi.org/10.5539/apr.v8n4p134.

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<p class="1Body">One formula with two trigonometric corrections describing the round trip of the beams in the Michelson-Morley experiment is presented. The first trigonometric correction describes the round trip path of those beams, while the second trigonometric correction describes the trigonometric geometric mean of the two-way speed of those beams. This formula gives the null fringe shift result for the first order experiments (Fizeau experiment, Hoek experiment), the null fringe shift result for the second order experiment (Michelson-Morley experiment), and predicts a measurable fri

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Kormos, Donald, Hong-Nin Yeung, and Henry S. Dewhurst. "4661775 Chemical shift imaging with field inhomogeneity correction." Magnetic Resonance Imaging 5, no. 5 (1987): VI. http://dx.doi.org/10.1016/0730-725x(87)90153-6.

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Metzler, S. D., R. J. Jaszczak, K. L. Greer, and J. E. Bowsher. "Angular-Dependent Axial-Shift Correction for Pinhole SPECT." IEEE Transactions on Nuclear Science 54, no. 1 (2007): 124–29. http://dx.doi.org/10.1109/tns.2006.887470.

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Clark, A. P., and A. Aftelak. "Doppler-shift correction for a UQPSK satellite modem." International Journal of Satellite Communications 8, no. 5 (1990): 337–47. http://dx.doi.org/10.1002/sat.4600080503.

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Ginzinger, Simon W., Fabian Gerick, Murray Coles, and Volker Heun. "CheckShift: automatic correction of inconsistent chemical shift referencing." Journal of Biomolecular NMR 39, no. 3 (2007): 223–27. http://dx.doi.org/10.1007/s10858-007-9191-5.

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Gao, Guxue, Huicheng Lai, and Zhenhong Jia. "Two-Step Unsupervised Approach for Sand-Dust Image Enhancement." International Journal of Intelligent Systems 2023 (May 13, 2023): 1–17. http://dx.doi.org/10.1155/2023/4506331.

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In sand-dust environments, light is scattered and absorbed, and sand-dust images thus suffer from severe image degradation problems, such as color shifts, low contrast, and blurred details. To address these problems, we propose a two-step unsupervised sand-dust image enhancement algorithm. In the first step, a convenient and competent color correction method is put forward to solve the color shift problem. Considering the wavelength attenuation features of sand-dust images, a linear stretching and blue channel compensation method is designed, and an adaptive color shift correction factor is de

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Sterzing, Florian, Jörn Kalz, Gabriele Sroka-Perez, et al. "Megavoltage CT in Helical Tomotherapy — Clinical Advantages and Limitations of Special Physical Characteristics." Technology in Cancer Research & Treatment 8, no. 5 (2009): 343–52. http://dx.doi.org/10.1177/153303460900800504.

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Helical tomotherapy is a form of image-guided intensity-modulated radiotherapy that introduces the ring gantry concept into radiation oncology. The system is a combination of a therapeutic linear accelerator and a megavoltage CT-scanner. This work describes the clinical experience with megavoltage CT with 456 patients in more than 11000 fractions. It also provides a review of the current literature of the possibilities and limitations of megavoltage CT. Between July 2006 and October 2008 456 patients were treated with helical tomotherapy and a pretreatment megavoltage CT was performed in 98.1%

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Novikov-Borodin, Andrey. "Experimental Data Processing Using Shift Methods." EPJ Web of Conferences 226 (2020): 03014. http://dx.doi.org/10.1051/epjconf/202022603014.

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The numerical methods of step-by-step and combined shifts are proposed for correction and reconstruction the experimental data convolved with different blur kernels. Methods use a shift technique for the direct deconvolution of experimental data, they are fast and effective for data reconstruction, especially, in the case of discrete measurements. The comparative analysis of proposed methods is presented, inaccuracies of reconstruction with different blur kernels, different volumes of data and noise levels are estimated. There are presented the examples of using the shift methods in processing

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Kovačević, Mladen. "Runlength-Limited Sequences and Shift-Correcting Codes: Asymptotic Analysis." IEEE Transactions on Information Theory 65, no. 8 (2019): 4804–14. https://doi.org/10.1109/TIT.2019.2907979.

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This work is motivated by the problem of error correction in bit-shift channels with the so-called (d,k) input constraints (where successive 1's are required to be separated by at least d and at most k zeros, 0 \leq d < k \leq \infty). Bounds on the size of optimal (d,k)-constrained codes correcting a fixed number of bit-shifts are derived, with a focus on their asymptotic behavior in the large block-length limit. The upper bound is obtained by a packing argument, while the lower bound follows from a construction based on a family of integer lattices.

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Popovici, Alexander Mihai. "Prestack migration by split‐step DSR." GEOPHYSICS 61, no. 5 (1996): 1412–16. http://dx.doi.org/10.1190/1.1444065.

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The double‐square‐root (DSR) prestack migration equation, though defined for depth variable velocity, can be used to image media with strong velocity variations using a phase‐shift plus interpolation (PSPI) or split‐step correction. The split‐step method is based on applying a phase‐shift correction to the extrapolated wavefield—a correction that attempts to compensate for the lateral velocity variations. I show how to extend DSR prestack migration to lateral velocity media and exemplify the method by applying the new algorithm to the Marmousi data set. The split‐step DSR migration is very fas

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Repp, Bruno H., Justin London, and Peter E. Keller. "Phase Correction in Sensorimotor Synchronization with Nonisochronous Sequences." Music Perception 26, no. 2 (2008): 171–75. http://dx.doi.org/10.1525/mp.2008.26.2.171.

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PHASE CORRECTION, WHICH IS NECESSARY for synchronization of movements with a rhythm, has been studied primarily with isochronous sequences.We used a phase perturbation method to examine phase correction in synchronization with nonisochronous sequences (3:2 interval ratios), using musically trained participants. In isochronous control sequences, the phase correction response (PCR) of the tap following a small phase shift was larger when the intervals were long (600 ms) than when they were short (400 ms). In nonisochronous cyclic two-interval patterns, we found a similar dependence of the PCR on

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Chen, Xi, Andrey Smelter, and Hunter N. B. Moseley. "BaMORC: A Software Package for Accurate and Robust 13C Reference Correction of Protein NMR Spectra." Natural Product Communications 14, no. 5 (2019): 1934578X1984914. http://dx.doi.org/10.1177/1934578x19849142.

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We describe Bayesian Model Optimized Reference Correction (BaMORC), a software package that performs 13C chemical shifts reference correction for either assigned or unassigned peak lists derived from protein NMR spectra. BaMORC provides an intuitive command line interface that allows non-nuclear magnetic resonance (NMR) experts to detect and correct 13C chemical shift referencing errors of unassigned peak lists at the very beginning of NMR data analysis, further lowering the bar of expertise required for effective protein NMR analysis. Furthermore, BaMORC provides an application programming in

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Alkhalifah, Tariq. "Prestack phase‐shift migration of separate offsets." GEOPHYSICS 65, no. 4 (2000): 1179–94. http://dx.doi.org/10.1190/1.1444811.

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Prestack phase‐shift migration is implemented by evaluating the offset‐wavenumber ([Formula: see text]) integral using the stationary‐phase method. Thus, the stationary point along [Formula: see text] must be calculated prior to applying the phase shift. This type of implementation allows for migration of separate offsets, as opposed to migration of the whole prestack data when using the original formulas. For zero‐offset data, the stationary point ([Formula: see text]) is known in advance, and, therefore, the phase‐shift migration can be implemented directly. For nonzero‐offset data, we first

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Agafonov, A. I. "Hydrogen energy-level shifts induced by the atom motion: Crossover from the Lamb shifts to the motion-induced shifts." Modern Physics Letters B 32, no. 23 (2018): 1850273. http://dx.doi.org/10.1142/s0217984918502731.

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When the hydrogen atom moves, the proton current generates a magnetic field which interacts with the hydrogen electron. A simple analysis shows that for the hydrogen velocity [Formula: see text] the dominant interaction between the hydrogen momentum and the electron is of order of [Formula: see text], where [Formula: see text] is the fine structure constant, v is the atom velocity, c is the speed of light and m is the electron mass. Using the Bethe–Salpeter equation, the two velocity-dependent operators of this order are derived. As is well known, the degeneracy of the energy levels with the s

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Sudaryanto, Sudaryanto, Arpandjam’an Arpandjam’an, Ainun Ainun, Rahmat Nugraha, and Virny Dwiya Lestari. "PENERAPAN SHORTWAVE DIATHERMY, MANUAL CORRECTION LATERAL SHIFT DAN CORE STABILITY PADA LUMBAR RADICULOPATHY." Media Fisioterapi Politeknik Kesehatan Makassar 14, no. 2 (2023): 9. http://dx.doi.org/10.32382/mf.v14i2.3148.

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Penelitian ini bertujuan untuk mengetahui Penerapan Shortwave Diathermy, Manual Correction Lateral Shift dan Core Stability pada Lumbar Radiculopathy di RSAD TK II Pelamonia Makassar. Jenis penelitian ini adalah studi kasus yaitu penelitian yang mendalam pada 1 jenis kasus terhadap 2 sampel. Modalitas yang digunakan adalah shortwave diathermy, manual correction lateral shift dan core stability, sedangkan evaluasi yang digunakan untuk melihat kemajuan terapi adalah nyeri (VAS), Derajat SLR (goniometer), dan kemampuan aktivitas fungsional Oswestry Disability Indeks(ODI). Hasil penelitian berdasa

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Sudaryanto, Sudaryanto, Arpandjaman Arpandjaman, Ainun Ainun, Rahmat Nugraha, and Virny Dwiya Lestari. "PENERAPAN SHORTWAVE DIATHERMY, MANUAL CORRECTION LATERAL SHIFT DAN CORE STABILITY PADA LUMBAR RADICULOPATHY." Media Fisioterapi Politeknik Kesehatan Makassar 14, no. 2 (2022): 23–30. http://dx.doi.org/10.32382/fis.v14i2.48.

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Penelitian ini bertujuan untuk mengetahui Penerapan Shortwave Diathermy, Manual Correction Lateral Shift dan Core Stability pada Lumbar Radiculopathy di RSAD TK II Pelamonia Makassar. Jenis penelitian ini adalah studi kasus yaitu penelitian yang mendalam pada 1 jenis kasus terhadap 2 sampel. Modalitas yang digunakan adalah shortwave diathermy, manual correction lateral shift dan core stability, sedangkan evaluasi yang digunakan untuk melihat kemajuan terapi adalah nyeri (VAS), Derajat SLR (goniometer), dan kemampuan aktivitas fungsional Oswestry Disability Indeks(ODI). Hasil penelitian berdasa

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Sakaguchi, Keisuke, Courtney Napoles, Matt Post, and Joel Tetreault. "Reassessing the Goals of Grammatical Error Correction: Fluency Instead of Grammaticality." Transactions of the Association for Computational Linguistics 4 (December 2016): 169–82. http://dx.doi.org/10.1162/tacl_a_00091.

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The field of grammatical error correction (GEC) has grown substantially in recent years, with research directed at both evaluation metrics and improved system performance against those metrics. One unvisited assumption, however, is the reliance of GEC evaluation on error-coded corpora, which contain specific labeled corrections. We examine current practices and show that GEC’s reliance on such corpora unnaturally constrains annotation and automatic evaluation, resulting in (a) sentences that do not sound acceptable to native speakers and (b) system rankings that do not correlate with human jud

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