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Journal articles on the topic 'Adjustment of position'

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Published: 28 May 2022

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1

Denic, Dragan, Goran Miljkovic, Jelena Lukic, and Miodrag Arsic. "Pseudorandom position encoder with improved zero position adjustment." Facta universitatis - series: Electronics and Energetics 25, no. 2 (2012): 113–20. http://dx.doi.org/10.2298/fuee1202113d.

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Pseudorandom position encoder, which employs two code tracks for absolute position measurement, represents one of the latest trends in the development of the absolute position encoders. One sensor head is used for pseudorandom code reading and two additional sensor heads are used for generating synchronization pulses and motion direction determination. Special attention is devoted to the zero position adjustment after the installation of the encoder on the motor shaft. A novel solution for the improved zero position adjustment incorporated in the functional algorithm of the encoder is presented in this paper. The presented solution offers a reliable procedure for the zero position adjustment, taking into account possible motion direction changes during the zero position adjustment process. The algorithm for the zero position adjustment executes only once and does not participate further in the absolute position measurement process. The functioning of the proposed algorithm is described in more details considering one concrete example of the encoder.
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2

Zhang, Liang, Yaguang Zhu, Feifei Zhang, and Shuangjie Zhou. "Position-Posture Control of Multilegged Walking Robot Based on Kinematic Correction." Journal of Robotics 2020 (September 25, 2020): 1–9. http://dx.doi.org/10.1155/2020/8896396.

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Posture-position control is the fundamental technology among multilegged robots as it is hard to get an effective control on rough terrain. These robots need to constantly adjust the position-posture of its body to move stalely and flexibly. However, the actual footholds of the robot constantly changing cause serious errors during the position-posture control process because their foot-ends are basically in nonpoint contact with the ground. Therefore, a position-posture control algorithm for multilegged robots based on kinematic correction is proposed in this paper. Position-posture adjustment is divided into two independent motion processes: robot body position adjustment and posture adjustment. First, for the two separate adjustment processes, the positions of the footholds relative to the body are obtained and their positions relative to the body get through motion synthesis. Then, according to the modified inverse kinematics solution, the joint angles of the robot are worked out. Unlike the traditional complex closed-loop position-posture control of the robot, the algorithm proposed in this paper can achieve the purpose of reducing errors in the position-posture adjustment process of the leg-foot robot through a simple and general kinematic modification. Finally, this method is applied in the motion control of a bionic hexapod robot platform with a hemispherical foot-end. A comparison experiment of linear position-posture change on the flat ground shows that this method can reduce the attitude errors, especially the heading error reduced by 55.46%.
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3

Shaik, Ahmed Asif, Nkgatho Sylvester Tlale, and Glen Bright. "2 DOF resolution adjustment laser position sensor." International Journal of Intelligent Systems Technologies and Applications 8, no. 1/2/3/4 (2010): 348. http://dx.doi.org/10.1504/ijista.2010.030215.

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4

Smith, Bruce A. "Audio source position detection and audio adjustment." Journal of the Acoustical Society of America 119, no. 6 (2006): 3515. http://dx.doi.org/10.1121/1.2212572.

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5

Schultz, David. "Sensor-Driven Position-Adaptive Spinal Cord Stimulation for Chronic Pain." Pain Physician 1;15, no. 1;1 (January 14, 2012): 1–12. http://dx.doi.org/10.36076/ppj.2012/15/1.

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Background: Variation in the intensity of neurostimulation due to body position is a practical problem for many patients implanted with spinal cord stimulation (SCS) systems because positional changes may result in overstimulation or understimulation that leads to frequent need for compensatory manual programming adjustments. Objectives: The purpose of this study was to assess the safety and effectiveness of a novel type of SCS therapy designed to automatically adapt stimulation amplitude in response to changes in a patient’s position or activity. The primary objective of the study was to demonstrate that automatic position-adaptive SCS benefited patients in terms of pain relief and/or convenience compared with neurostimulation adjusted with conventional manual programming. Secondary objectives included assessment of worsened pain relief with automatic adjustment; change in pain score; and the number of manual programming adjustments with position-adaptive neurostimulation compared with manual programming. Study Design: Prospective, multicenter, open-label, randomized crossover study. Setting: Ten interventional pain management centers in the US. Methods: Patients were enrolled a minimum of one week after a successful SCS screening trial. They were then implanted with the RestoreSensorTM neurostimulation device (Medtronic, Inc., Minneapolis, MN) that could be programmed to either automatic position-adaptive stimulation (AdaptiveStimTM) or manual adjustment of stimulation parameters. After implant, all devices were programmed to conventional manual adjustment for a 4-week postoperative period. The patients were then randomized to either conventional manual programming adjustment or position-adaptive stimulation with crossover to the opposite treatment arm occurring at 6 weeks after randomization. The patients were followed for another 6 weeks after crossover. This study was conducted under an FDA-approved Investigational Device Exemption (IDE) and approval of the responsible Institutional Review Boards (IRBs) of the study centers. Results: Seventy-nine patients were enrolled in the study. In an intent-to-treat analysis, 86.5% of patients achieved the primary objective of improved pain relief with no loss of convenience or improved convenience with no loss of pain relief using automatic position-adaptive stimulation compared with using conventional manual programming adjustment alone. This was statistically significantly greater than the predefined minimum success rate of 25%, P < 0.001 (exact one-sided 97.5% lower confidence limit was 76.5%). Only 2.8% of patients reported worsened pain relief during position-adaptive stimulation compared with manual programming. There was a statistically significant reduction in the mean numeric pain rating scale score compared with baseline scores in both treatment arms. Additionally, position-adaptive stimulation demonstrated a statistically significant 41% reduction in the daily average number of programming button presses for amplitude adjustment compared with manual programming (18.2 per day versus 30.7 per day, P = 0.002). Functional improvements reported with position-adaptive stimulation included: improved comfort during position changes (80.3%); improved activity (69%); and improved sleep (47.9%). Adverse events associated with uncomfortable sensations from stimulation did not differ significantly between treatment arms. The incidence of device-related serious adverse events was 3.9%. Limitations: Patients and physicians were not blinded to whether devices were programmed to automatic position-adaptive stimulation or manual adjustment. Responses to assessment questionnaires were based on patient recall. Conclusions: The study demonstrated that automatic position-adaptive stimulation is safe and effective in providing benefits in terms of patient-reported improved pain relief and convenience compared with using manual programming adjustment alone. Key words: spinal cord stimulation, neurostimulation, position sensing, physical activity accelerometer, neuromodulation, effectiveness, pain relief, position-adaptive stimulation, posture-adaptive stimulation, AdaptiveStim Clinical Trial: NCT01106404
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6

Schade, Cristy M. "Automatic Adaptation of Neurostimulation Therapy in Response to Changes in Patient Position: Results of the Posture Responsive Spinal Cord Stimulation (PRS) Research Study." Pain Physician 5;14, no. 5;9 (September 14, 2011): 407–17. http://dx.doi.org/10.36076/ppj.2011/14/407.

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Background: Variation in the intensity of neurostimulation with body position is a practical problem for many patients implanted with a spinal cord stimulation system because positional changes may result in overstimulation or understimulation. These posture-related changes in patients’ perception of paresthesia can affect therapeutic outcomes of spinal cord stimulation therapy. An accelerometer-based algorithm that automatically adjusts spinal cord stimulation based on sensed body position or activity represents a potential solution to the problem of position-mediated variations in paresthesia perception. Objective: The objective of this study was to compare patient satisfaction ratings for manual versus automatic adjustment of spinal cord stimulation amplitude in response to positional changes. Study Design: Prospective, multicenter, open-label, randomized trial Setting: 2 pain centers in the US. Method: Twenty patients at 2 centers in the U.S. who had been implanted with a spinal cord stimulation system for low back and/or leg pain were enrolled in the study. During a 3-day run-in phase, patient position and activity changes were monitored with an ambulatory data recorder and with a research patient programmer which recorded all stimulation parameter changes. Patients who made ≥ 2 amplitude adjustments per 24- hour period were invited to participate in an in-clinic phase. During the in-clinic phase, patients’ preferred stimulation amplitude and therapy impedance measured at the preferred stimulation amplitude were determined as they performed a series of 8 physical tasks. Satisfaction ratings were determined during position transitions between the physical tasks using both manual and automatic adjustments. Results: Among the 15 patients who completed the in-clinic test protocol, overall satisfaction ratings were significantly higher for automatic adjustment of stimulation amplitudes versus manual adjustments. Patients reported statistically significant improvements with automatic versus manual adjustment for the standing to supine transition and for supine to standing transition. Approximately 74% of participants rated the paresthesia intensity of the automatic adjustment algorithm as “just right” for the physical tasks that were completed. Limitations: Small study size. Conclusion: Patients preferred automatic versus manual adjustment of stimulation amplitude in response to changes in paresthesia consequent to positional changes during in-clinic testing. Key words: spinal cord stimulation, automaticity, paresthesia, neuromodulation, neurostimulation, adaptive stimulation, posture responsive stimulation, accelerometry
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7

Suzuki, Yasushi, and Kouichi Kanzaki. "Carriage Position Adjustment of Triangular Running Skyline System." Journal of Structural Engineering 124, no. 4 (April 1998): 391–98. http://dx.doi.org/10.1061/(asce)0733-9445(1998)124:4(391).

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8

Bae, Youkyung, Jamie L. Perry, and David P. Kuehn. "Videofluoroscopic Investigation of Body Position on Articulatory Positioning." Journal of Speech, Language, and Hearing Research 57, no. 4 (August 2014): 1135–47. http://dx.doi.org/10.1044/2013_jslhr-s-12-0235.

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Purpose To quantitatively examine the effects of body position on the positioning of the epiglottis, tongue, and velum at rest and during speech. Method Videofluoroscopic data were obtained from 12 healthy adults in the supine and upright positions at rest and during speech while the participants produced 12 VCV sequences. The effects of body position, target sounds, and adjacent sounds on structural positioning and vowel formant structure were investigated. Results Velar retropositioning in the supine position was the most consistent pattern observed at rest. During speech, all structures, with varying degrees of adjustment, appeared to work against the gravitational pull, resulting in no significant narrowing in the oro- and nasopharyngeal regions while in the supine position. Minimal differences in the formant data between the body positions were also observed. Overall, structural positioning was significantly dependent on the target and adjacent sounds regardless of body position. Conclusions The present study demonstrated that structural positioning in response to gravity varied across individuals based on the type of activities being performed. With varying degrees of positional adjustment across different structures, fairly consistent articulatory positioning in the anterior–posterior dimension was maintained in different body positions during speech.
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9

Xu, Huang, Zhi Xiong Lu, Yan Dong Song, and Hong Lei Pang. "Force-Position Adjustment Design of Tractor Hitch System Based on DSP CCS." Applied Mechanics and Materials 462-463 (November 2013): 483–86. http://dx.doi.org/10.4028/www.scientific.net/amm.462-463.483.

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Tractor electro-hydraulic hitch system is designed with force-position adjustment function. The method of force-position adjustment is proposed. Under the CCS development environment in DSP, system modules are designed according to the characteristics of TMS320F2812, including raise and drop modules, force-position adjustment module. The feasibility of the design is verified by system simulation.
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10

Thyer*, N. H., J. A. R. Blais, and M. A. Chapman. "Integration of an inertial system with high-altitude photogrammetry over rugged terrain." CISM journal 43, no. 1 (April 1989): 9–19. http://dx.doi.org/10.1139/geomat-1989-0001.

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In aerial photogrammetry, information on camera position and orientation from auxiliary systems can be used to supplement or replace ground control information when the latter is inadequate. High-altiude aerial photography has experimentally been combined with inertial measurement of camera position and orientation over the Rocky Mountains west of Calgary. The inertial system output was compared with corresponding values from various photogrammetric adjustments for analysis purposes. In this experiment, it was found that the absolute position coordinates and orientation angles, as given by the inertial system without updates, were unsatisfactory. However, the changes in these quantities between consecutive stations agreed with the photogrammetry to a degree at least as close as the reliability of the photogrammetry itself, and even better agreement was obtained for rotation-invariant func-tions of these changes of position and orientation. Agreement was also improved by ignoring those perspective centers whose position coordinates gave the greatest residuals in the photogrammetric adjustment, indicating that inclusion of auxiliary information should improve the quality of the contribution of those images to the adjustment.
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11

Bryn, M. J., Yu V. Lobanova, D. A. Afonin, and G. G. Shevshenko. "Evaluating the accuracy of determining the points’ position by free stationing method." Geodesy and Cartography 971, no. 5 (June 20, 2021): 2–9. http://dx.doi.org/10.22389/0016-7126-2021-971-5-2-9.

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The accuracy of determining the points’ position through the free stationing method is estimated. At performing alignment work, surveying facades, executive surveys, and geodetic monitoring of buildings and structures, the method of free stationing with an electronic total station installed in any suitable place and determining its position by serif, and then using the polar method, defi ning the coordinates of the determined point is considered. The accuracy assessment is identifi ed using the formulas of calculating the mean square error for the direct and reverse angular serifs, as well as for linear ones. The authors propose algorithms of accuracy evaluation for the located point positions with non-fi xed stationing method based on the parametric adjustment, and searching ones, at the same time the algorithms shall provide adjustment by considering or ignoring the errors in the input data. To determine the mean square error of the standing point’s position and the determined points according to the results of adjustment by the free stationing method, fi eld experimental studies were carried out. Numerical examples of accuracy evaluation are provided. The compliance of the adjustment results and root-mean-square errors will mean the validity of the proposed algorithms and accuracy of the performed survey.
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12

Zhang, Qin, Wei Jun Huang, Gang Su, and Hisayuki Aoyama. "Experimental Research on Adjusting Cell Position and Orientation with Micro-Fluid." Key Engineering Materials 516 (June 2012): 557–62. http://dx.doi.org/10.4028/www.scientific.net/kem.516.557.

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Position and orientation adjustment is an important issue in the micromanipulation of cells. A non-contact method based on micro-fluid for cell position and orientation control was introduced in this paper. The cells were positional fixed by the pressure force of a pair of lined micro-fluids from two tiny tubes. The orientation adjustment was realized by rotating cells in swirls caused by a pair of parallel micro-fluids. By spraying fluctuant micro-fluid, cells orientation can be controlled more precisely. The experiments proved that this non-contact cell position and orientation adjustment method is feasible and secure.
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13

Predmore, C. Read. "Bundle adjustment of multi-position measurements using the Mahalanobis distance." Precision Engineering 34, no. 1 (January 2010): 113–23. http://dx.doi.org/10.1016/j.precisioneng.2009.05.003.

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14

Geiger, Emanuel V., Otto Müller, Thomas Niemeyer, and Torsten Kluba. "Adjustment of pelvispinal parameters preserves the constant gravity line position." International Orthopaedics 31, no. 2 (June 8, 2006): 253–58. http://dx.doi.org/10.1007/s00264-006-0157-0.

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15

Chu, Wenmin, and Xiang Huang. "Posture adjustment method for large components of aircraft based on hybrid force-position control." Industrial Robot: the international journal of robotics research and application 47, no. 3 (January 29, 2020): 381–93. http://dx.doi.org/10.1108/ir-10-2019-0212.

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Purpose Flexible tooling for adjusting the posture of large components of aircraft (LCA) is composed of several numerical control locators (NCLs). Because of the manufacture and installation errors of NCL, the traditional control method of NCL may cause great interaction force between NCLs and form the internal force of LCA during the process of posture adjustment. Aiming at this problem, the purpose of this paper is to propose a control method for posture adjustment system based on hybrid force-position control (HFPC) to reduce the internal force of posture adjustment. Design/methodology/approach First of all, the causes of internal force of posture adjustment were analyzed by using homogeneous transformation matrix and inverse kinematics. Then, axles of NCLs were divided into position control axle and force control axle based on the screw theory, and the dynamic characteristics of each axle were simulated by MATLAB. Finally, a simulated posture adjustment system was built in the laboratory to carry out HFPC experiment and was compared with the other two traditional control methods for posture adjustment. Findings The experiment results show that HFPC method for redundant actuated parallel mechanism (RAPM) can significantly reduce the interaction force between NCLs. Originality/value In this paper, HFPC is applied to the control of the posture adjustment system, which reduces the internal force of LCA and improves the assembly quality of aircraft parts.
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Sumanti, Rati, Ervina Yunita, and Henri Prianto Sinurat. "Strategic Aspects of Professional Position Development: Implications for Adjustment from Administrative to Professional Positions in Indonesia." Jurnal Borneo Administrator 17, no. 3 (December 28, 2021): 351–64. http://dx.doi.org/10.24258/jba.v17i3.898.

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The mandate of government policy is to flatten bureaucracy structure through transferring administrative positions to professional ones. Such policy has caused many issues. Thus, it is necessary to develop professional positions. This research analyses three strategic aspects of professional position development that include legal, technical, and welfare aspects using a systematic literature review method. It shows that the legal aspect requires certain policies to accelerate the implementation of flat bureaucracy and problem-solving in organizational structure as well as in personnel management. The government's commitment is required by the planning system related to the development of professional positions both at the central and regional levels. In the technical aspect, the analysis shows competency development become mandatory for agencies to solve the competency gap between administrative positions and professional positions. Then on the welfare aspect, there is an income gap between administrative positions and several professional positions. The government has to make a regulation about allowance to resolve the income gap.
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Li, Jingdong, and Yu Huang. "Subjective Preferences and Discomfort Ratings of Backrest and Seat Pan Adjustments at Various Speeds." Applied Sciences 11, no. 4 (February 15, 2021): 1721. http://dx.doi.org/10.3390/app11041721.

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Power seats (i.e., electrically adjustable seats that can be designed to move in several ways) have become increasingly common in airplanes, vehicles, and offices. Many studies have investigated the effects of seat attitude parameters, for example, the inclined angles of a backrest, on discomfort during the adjustment process. However, few studies have considered discomfort under different speeds during the adjustment process. In this study, we investigated discomfort with three speeds (i.e., “fast”, “median”, and “slow” corresponding to three durations of 15, 20, and 25 s, respectively) and two adjustments of a power seat, i.e., incline angle adjustment of the backrest and fore-and-aft position adjustment of the seat pan. We also investigated the effects of different physiological parameters on subjects’ discomfort. Twenty-four subjects (12 males and 12 females) completed a questionnaire to indicate their adjustment condition preferences, to rate their overall discomfort during the adjustment processes on a category-ratio scale, and to rate their local body discomfort. The majority of subjects preferred the fast speed adjustment condition and the trend was that a lower backrest adjustment speed increased discomfort during the process. The dominant local discomfort was in the upper and lower back regions during the backrest adjustment, whereas there was no obvious dominant local discomfort during the seat pan adjustment. The physiological parameters also had significant correlations with discomfort in some adjustment movements, for example, the discomfort was negatively correlated with height during the backrest adjustment.
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Xia, Xuhua. "Post-Alignment Adjustment and Its Automation." Genes 12, no. 11 (November 18, 2021): 1809. http://dx.doi.org/10.3390/genes12111809.

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Multiple sequence alignment (MSA) is the basis for almost all sequence comparison and molecular phylogenetic inferences. Large-scale genomic analyses are typically associated with automated progressive MSA without subsequent manual adjustment, which itself is often error-prone because of the lack of a consistent and explicit criterion. Here, I outlined several commonly encountered alignment errors that cannot be avoided by progressive MSA for nucleotide, amino acid, and codon sequences. Methods that could be automated to fix such alignment errors were then presented. I emphasized the utility of position weight matrix as a new tool for MSA refinement and illustrated its usage by refining the MSA of nucleotide and amino acid sequences. The main advantages of the position weight matrix approach include (1) its use of information from all sequences, in contrast to other commonly used methods based on pairwise alignment scores and inconsistency measures, and (2) its speedy computation, making it suitable for a large number of long viral genomic sequences.
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Le Coz, Camille, Arnold Heemink, Martin Verlaan, and Nick van de Giesen. "Spatial and Time Warping for Gauge Adjustment of Rainfall Estimates." Atmosphere 12, no. 11 (November 16, 2021): 1510. http://dx.doi.org/10.3390/atmos12111510.

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Many satellite-based estimates use gauge information for bias correction. In general, bias-correction methods are focused on the intensity error and do not explicitly correct possible position or timing errors. However, position and timing errors in rainfall estimates can also lead to errors in the rainfall occurrence or the intensity. This is especially true for localized rainfall events such as the convective rainstorms occurring during the rainy season in sub-Saharan Africa. We investigated the use of warping to correct such errors. The goal was to gauge-adjust satellite-based estimates with respect to the position and the timing of the rain event, instead of its intensity. Warping is a field-deformation method that transforms an image into another one. We compared two methods, spatial warping focusing on the position errors and time warping for the timing errors. They were evaluated on two case studies: a synthetic rainfall event represented by an ellipse and a rain event in southern Ghana during the monsoon season. In both cases, the two warping methods reduced significantly the respective targeted (position or timing) errors. In the southern Ghana case, the average position error was decreased by about 45 km by the spatial warping and the average timing error was decreased from more than 1 h to 0.2 h by the time warping. Both warping methods also improved the continuous statistics on the intensity: the correlation went from 0.18 to at least 0.62 after warping in the southern Ghana case. The spatial warping seems more interesting because of its positive impact on both position and timing errors.
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BRIGO, DAMIANO, ANDREA PALLAVICINI, and VASILEIOS PAPATHEODOROU. "ARBITRAGE-FREE VALUATION OF BILATERAL COUNTERPARTY RISK FOR INTEREST-RATE PRODUCTS: IMPACT OF VOLATILITIES AND CORRELATIONS." International Journal of Theoretical and Applied Finance 14, no. 06 (September 2011): 773–802. http://dx.doi.org/10.1142/s0219024911006759.

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The purpose of this paper is introducing rigorous methods and formulas for bilateral counterparty risk credit valuation adjustment (CVA) on interest-rate portfolios. In doing so, we summarize the general arbitrage-free valuation framework for counterparty risk adjustments in presence of bilateral default risk, including the default of the investor. We illustrate the symmetry in the valuation and show that the adjustment involves a long position in a put option plus a short position in a call option, both with zero strike and written on the residual net present value of the contract at the relevant default times. We allow for correlation between the default times of the investor and counterparty, and for correlation of each with the underlying risk factor, namely interest rates. We also analyze the often neglected impact of credit spread volatility. We include close-out netting rules in our examples, although other agreements, such as periodic margining or collateral posting, are left for future work.
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21

Guo, Ruolin, Danyang Qin, Min Zhao, and Xinxin Wang. "Indoor Radio Map Construction Based on Position Adjustment and Equipment Calibration." Sensors 20, no. 10 (May 15, 2020): 2818. http://dx.doi.org/10.3390/s20102818.

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The crowdsourcing-based wireless local area network (WLAN) indoor localization system has been widely promoted for the effective reduction of the workload from the offline phase data collection while constructing radio maps. Aiming at the problem of the diverse terminal devices and the inaccurate location annotation of the crowdsourced samples, which will result in the construction of the wrong radio map, an effective indoor radio map construction scheme (RMPAEC) is proposed based on position adjustment and equipment calibration. The RMPAEC consists of three main modules: terminal equipment calibration, pedestrian dead reckoning (PDR) estimated position adjustment, and fingerprint amendment. A position adjustment algorithm based on selective particle filtering is used by RMPAEC to reduce the cumulative error in PDR tracking. Moreover, an inter-device calibration algorithm is put forward based on receiver pattern analysis to obtain a device-independent grid fingerprint. The experimental results demonstrate that the proposed solution achieves higher localization accuracy than the peer schemes, and it possesses good effectiveness at the same time.
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22

Stansfeld, Stephen A., Charlotte Clark, Bryan Rodgers, Tanya Caldwell, and Chris Power. "Childhood and adulthood socio-economic position and midlife depressive and anxiety disorders." British Journal of Psychiatry 192, no. 2 (February 2008): 152–53. http://dx.doi.org/10.1192/bjp.bp.107.043208.

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SummaryThis paper investigates how childhood socio-economic position influences the risk for midlife depressive and anxiety disorders at 45 years of age, assessed by the Clinical Interview Schedule in 9377 participants of the 1958 British Birth Cohort. Socio-economic position was measured by Registrar General Social Class in childhood and adulthood. The association of paternal manual socio-economic position with any diagnosis at 45 years of age was accounted for after adjustment for adult socio-economic position. Manual socio-economic position in women at 42 years of age was associated with midlife depressive disorder and any diagnosis; these associations were diminished by adjustment for childhood psychological disorders. Effects of childhood socio-economic position on adult depressive disorders may be mediated through adult socio-economic position.
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23

Xiong, Xin, Xiaoli Yin, Fang Liu, Danqing Qin, and Yang Liu. "Magnetic resonance imaging-guided disc–condyle relationship adjustment via articulation: a technical note and case series." Journal of International Medical Research 48, no. 8 (August 2020): 030006052095105. http://dx.doi.org/10.1177/0300060520951052.

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A normal disc–condyle relationship is crucial to the health and function of the temporomandibular joint. We herein introduce a novel technique that can precisely and rapidly restore the disc–condyle relationship. An initial bite rim was made, and the patient was instructed to wear this bite rim during magnetic resonance imaging (MRI) scanning. A quick MRI scan was performed, and the disc–condyle relationship and direction and vector of the displacement was measured. Adjustments to the mandible position were made on an articulator based on the measurements, after which a second bite rim was made. A second quick preview MRI scan was immediately performed, and the images were evaluated and measured again. Additional adjustments were made as needed, and the preview scan was repeated until an ideal disc–condyle relationship was achieved. Once a good disc–condyle relationship was acquired, the mandible position was recorded as the treatment mandible position, and a splint was fabricated. MRI visualization enabled precise and very fine adjustment of the disc–condyle relationship by articulating. This technique might help to simplify the clinical process and improve treatment effectiveness.
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Kuriyama, Minoru, Shigeo Hasegawa, Takehiro Otake, Yoshihiro Tanaka, and Kenichi Kasahara. "Occlusal contacts of crown in the intercuspal position after occlusal adjustment." Journal of Japanese Society of Stomatognathic Function 4, no. 2 (1998): 153–60. http://dx.doi.org/10.7144/sgf.4.153.

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25

Dagalakis, Nicholas G., and Donald R. Myers. "Adjustment of robot joint gears using encoder velocity and position information." Journal of Robotic Systems 2, no. 2 (1985): 229–34. http://dx.doi.org/10.1002/rob.4620020205.

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26

Xu, Tongxu, Xiang Xu, Feng Bu, Dacheng Xu, and Heming Zhao. "Three-position characterization for the adjustment of MEMS accelerometer scale factor." Measurement Science and Technology 32, no. 3 (December 17, 2020): 035020. http://dx.doi.org/10.1088/1361-6501/abcbce.

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27

Fetter, Michael, David S. Zee, Douglas Tweed, and Eberhard Koenig. "Head Position Dependent Adjustment of the Three-dimensional Human Vestibuloocular Reflex." Acta Oto-Laryngologica 114, no. 5 (January 1994): 473–78. http://dx.doi.org/10.3109/00016489409126089.

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28

Zhang, Zhifei, Yi Ji, and Wenchun Jiao. "Application of intelligent position and attitude adjustment technology in AIT of the space optical remote sensor." E3S Web of Conferences 233 (2021): 04005. http://dx.doi.org/10.1051/e3sconf/202123304005.

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In this paper, we present an intelligent position and attitude adjustment technology to solve the problem that the traditional pose adjustment scheme cannot meet the requirements of AIT, which is one of the most important parts in the manufacture of space optical remote sensor. The problem we have outlined deals largely with the study of a pioneer proposed hybrid pose adjustment strategy and a reanalysed the function of spatial pose adjustment. The strategy is realized as an intelligent position and attitude adjustment platform, and its mechanical analysis and practical statistics in AIT are carried out. The results prove to be encouraging, and it shows that the stiffness of the platform meets the requirements, the complexity of manufacturing the remote sensor is reduced, the total time of a single mission is reduced by nearly 18 times, the total man-time is reduced by 21 times, and the work efficiency is increased by 44 times. This work has resulted in a solution of the manufacturing efficiency and intelligent level of the space optical remote sensor be effectively improved.
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Zhang, Ying, and Edward Oczkowski. "Exploring the potential effects of expatriate adjustment direction." Cross Cultural & Strategic Management 23, no. 1 (February 1, 2016): 158–83. http://dx.doi.org/10.1108/ccsm-05-2015-0062.

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Purpose – The expansion of the phenomenon of two-way flow expatriation due to the accelerated process of globalization has resulted in an increasing need for a better understanding of cross-cultural transitions. Given the absence of convincing a priori theoretical explanations, as part of an inductive discovery process, the purpose of this paper is to examine the relationships between cultural intelligence (CQ), job position, and cross-cultural adjustment (CCA) for expatriates. Design/methodology/approach – Explicit consideration is given to uncovering the potential importance of cultural distance asymmetry (CDA) effects. Structural equation modelling techniques are employed to analyse survey data from a two-flow sample of expatriates between Australia and China. Findings – Results indicate that motivational CQ has a statistically significant effect on CCA. CDA is found to moderate the relationship between job positions and expatriate adjustment, such that the relationship depends on the direction of cultural flow between more and less authoritarian cultural contexts. Originality/value – These findings discover and highlight the potential importance of identifying the direction of cultural flows of expatriation in understanding successful expatriates’ CCA.
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Hossain, M. "Abstracting the triad of death, existence and adjustment to death: death and adjustment hypotheses." European Psychiatry 26, S2 (March 2011): 1727. http://dx.doi.org/10.1016/s0924-9338(11)73431-9.

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Viewed from a naturalistic and scientific perspective, death appears to represent the permanent cessation of human existence, contributing to the widespread experience of death anxiety. The present argument attempts to deconstruct this argument on epistemological grounds by analyzing1)the prevailing universal concept of death in naturalistic discourse,2)the issue of our adjustment to this presumed reality, and3)the relationship between existence and death in the context of their social evolution. Integrating this conceptual analysis with empirical observations, the paper then explores the contrasting postulate, namely that death may not be the end of our existence, and the moral implications of this alternative assumption. This position, termed the death adjustment hypotheses,” would seem to offer an alternative grounding for theory and research in Thanatology.
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He, G. Y., C. X. Hu, and X. Liu. "Evaluation Modeling and Optimal Adjustment of Position Error Based on Localization Sensitivity Analysis." Materials Science Forum 697-698 (September 2011): 258–61. http://dx.doi.org/10.4028/www.scientific.net/msf.697-698.258.

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Sensitivity analysis is to evaluate how sensitive the surface deviation of a workpiece is to a geometric error of locator. With this thinking, the relationship between geometric error of locators and the position error of holes group is presented. The fixture system errors model and evaluation model of position errors are established. Furthermore with both models, a method of optimizing the position errors by adjusting the locators’ position is presented, which can get to accuracy localization. At last, a simulation study is used to verify the method.
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Cui, Zhiqiang, Longsheng Pan, Huifang Song, Xin Xu, Bainan Xu, Xinguang Yu, and Zhipei Ling. "Intraoperative MRI for optimizing electrode placement for deep brain stimulation of the subthalamic nucleus in Parkinson disease." Journal of Neurosurgery 124, no. 1 (January 2016): 62–69. http://dx.doi.org/10.3171/2015.1.jns141534.

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OBJECT The degree of clinical improvement achieved by deep brain stimulation (DBS) is largely dependent on the accuracy of lead placement. This study reports on the evaluation of intraoperative MRI (iMRI) for adjusting deviated electrodes to the accurate anatomical position during DBS surgery and acute intracranial changes. METHODS Two hundred and six DBS electrodes were implanted in the subthalamic nucleus (STN) in 110 patients with Parkinson disease. All patients underwent iMRI after implantation to define the accuracy of lead placement. Fifty-six DBS electrode positions in 35 patients deviated from the center of the STN, according to the result of the initial postplacement iMRI scans. Thus, we adjusted the electrode positions for placement in the center of the STN and verified this by means of second or third iMRI scans. Recording was performed in adjusted parameters in the x-, y-, and z-axes. RESULTS Fifty-six (27%) of 206 DBS electrodes were adjusted as guided by iMRI. Electrode position was adjusted on the basis of iMRI 62 times. The sum of target coordinate adjustment was −0.5 mm in the x-axis, −4 mm in the y-axis, and 15.5 mm in the z-axis; the total of distance adjustment was 74.5 mm in the x-axis, 88 mm in the y-axis, and 42.5 mm in the z-axis. After adjustment with the help of iMRI, all electrodes were located in the center of the STN. Intraoperative MRI revealed 2 intraparenchymal hemorrhages in 2 patients, brain shift in all patients, and leads penetrating the lateral ventricle in 3 patients. CONCLUSIONS The iMRI technique can guide surgeons as they adjust deviated electrodes to improve the accuracy of implanting the electrodes into the correct anatomical position. The iMRI technique can also immediately demonstrate acute changes such as hemorrhage and brain shift during DBS surgery.
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Liu, Yubin, Chunbo Wang, He Zhang, and Jie Zhao. "Research on the Posture Control Method of Hexapod Robot for Rugged Terrain." Applied Sciences 10, no. 19 (September 25, 2020): 6725. http://dx.doi.org/10.3390/app10196725.

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This paper proposes a hexapod robot posture control method for rugged terrain to solve the problem of difficulty in realizing the posture control of a foot robot in rough terrain. The walking gait and original position of a six-legged robot is planned, and the Layer Identification of Tracking (LIT) strategy is developed to enable the robot to distinguish mild rugged terrain and severe rugged terrains automatically. The virtual suspension dynamic model is established. In mild rugged terrain, the posture maintenance strategy is adopted to keep the stability of the torso. In severe rugged terrain, the posture adjustment strategy is adopted to ensure the leg workspace and make it more widely adapt to the changing terrain, and a gravity center position adjustment method based on foot force distribution is designed to use foot force as feedback to control the position and attitude. The experiment of posture control in rough terrain and climbing experiment in the ladder terrain shows that the hexapod robot has good posture maintenance and posture adjustment effects when traversing complex terrain through the posture maintenance strategy and the posture adjustment strategy. Combined with the terrain identification method based on LIT, the hexapod robot can successfully climb the ladder terrain through the identification of the changing ladder terrain, and the movement of the posture adjustment process is stable.
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Polyakov, Igor A., and Vladimir V. Petrov. "Special aspects of temperature adjustment in thermoelectric refrigerators." MATEC Web of Conferences 324 (2020): 02002. http://dx.doi.org/10.1051/matecconf/202032402002.

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The peculiarities of two-position temperature control circuits in thermoelectric refrigerators designed for food storage are considered. A method for the experimental determination of the so-called pause current and the results of applying a control circuit using it using the example of a thermoelectric refrigerator “ТЭХ-0.12” are presented.
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BACHYSHYN, B. "Common adjustment of the planned and high position of the free station." Modern achievements of geodesic science and industry 40, no. II (2020): 34–40. http://dx.doi.org/10.33841/1819-1339-2020-2-40-34-40.

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36

Cooney, Teresa M., and Jeong Shin An. "Women in the Middle: Generational Position and Grandmothers' Adjustment to Raising Grandchildren." Journal of Women & Aging 18, no. 2 (June 12, 2006): 3–24. http://dx.doi.org/10.1300/j074v18n02_02.

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Wu, Shuai, Chunfang Li, Xiangyu Zhao, and Zongxia Jiao. "High accuracy position adjustment and vibration isolation actuator with the controlled ferrofluid." Applied Physics Letters 111, no. 21 (November 20, 2017): 213504. http://dx.doi.org/10.1063/1.5012975.

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Liu, Zhihai, Lei Wang, Peibo Liang, Yu Zhang, Jun Yang, and Libo Yuan. "Mode division multiplexing technology for single-fiber optical trapping axial-position adjustment." Optics Letters 38, no. 14 (July 15, 2013): 2617. http://dx.doi.org/10.1364/ol.38.002617.

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Matsuoka, Tsutomu. "Functional recovery of the stomatognathic system by adjustment of the occlusal position." JOURNAL OF THE ACADEMY OF CLINICAL DENTISTRY 34, no. 3 (2014): 281–92. http://dx.doi.org/10.14399/jacd.34.281.

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Ryoo, Jung, and Tae-yong Doh. "Auto-adjustment of the Objective Lens Neutral Position in Optical Disc Drives." IEEE Transactions on Consumer Electronics 53, no. 4 (November 2007): 1463–68. http://dx.doi.org/10.1109/tce.2007.4429238.

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Jiang, Youzhi, Fuyun Liu, Qiang Wu, and Yunzhan Xu. "A method for geometric tolerance annotation and position adjustment of engineering graphics." Journal of Physics: Conference Series 1820, no. 1 (March 1, 2021): 012149. http://dx.doi.org/10.1088/1742-6596/1820/1/012149.

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Yu, Long, Wei Xu, Da-bing Zhang, Xu-ming Ma, and Yong-hong Wu. "Strain Incremental Adjustment Method of Cable Force of Composite Saddle Anchor Span of Single-Tower Single-Span Ground-Anchored Suspension Bridge." Mathematical Problems in Engineering 2021 (November 30, 2021): 1–13. http://dx.doi.org/10.1155/2021/2956496.

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To improve the efficiency of cable force adjustment of composite saddle anchor span of single-tower single-span ground-anchored suspension bridge, a strain incremental adjustment method is proposed. The analytical calculation model is established according to the relative spatial position of the cable strand and the saddle groove of the composite saddle, and the target cable force of the cable strands is calculated by the target position of the composite saddle in the cable-stayed bridge and construction phases. Considering the coupling relationship between the cable strand and the composite saddle, the calculation formula of the change in main span main cable force and anchor span cable force after the adjustment of a single cable strand is derived. Based on the condition of equilibrium of forces along the slip surface of the composite saddle, the slip amount of composite saddle after a round of cable strand adjustment is obtained, then the adjustment amount of actual construction of the cable strands is also obtained through the strain incremental adjustment method. With the help of a numerical simulation platform, the calculation program of the cable force adjustment of composite saddle anchor span is established by an iterative solution method. In this paper, taking the Jinsha River Bridge at Hutiao Gorge as a research object, the adjustment of cable force of composite saddle anchor span is analyzed and calculated. The research results indicate that the calculated cable force is obtained by the strain incremental adjustment method, and it is similar to the measured cable force. The cable strand adjustment and optimization method avoids excessive repeated stretching and relaxation of a single cable strand in the process of multiple rounds of cable strand adjustment and reduces the amount of construction adjustment. This method can effectively reduce the times of cable strand adjustment and improve the efficiency of adjusting the anchor span cable force.
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WONGLEE, S., T. TADA, H. FUKUDA, J. HASEGAWA, and Y. OGURI. "DEVELOPMENT OF A TARGET POSITIONING SYSTEM BASED ON A LASER POSITION SENSOR FOR HIGH-EFFICIENCY WAVELENGTH-DISPERSIVE PIXE ANALYSIS." International Journal of PIXE 20, no. 01n02 (January 2010): 1–9. http://dx.doi.org/10.1142/s0129083510001902.

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A precise target positioning system based on a laser position sensor was developed for a high-efficiency wavelength dispersive PIXE analysis. The absolute position and the target surface profile were clearly observed using this position sensor, which was rigidly connected to the target vacuum chamber. By using a thin proton beam ( width = 2 mm ) and a small target (width = 1 mm), the optimum target position for the measurement of chlorine ( Cl ) Kβ X-ray could be determined from X-ray detection yields measured at various target positions. We found that the relationship between the X-ray detection yield and the target position can be explained by the target size as well as the incident proton beam width. After precise adjustment of the target position using the above system, target samples with two different Cl compounds, NaCl and NH 4 Cl , were successfully distinguished from the difference in the measured profiles of Kβ X-ray spectra.
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Gao, Qiang, Wenjie Liu, Dong Li, Yalin Wang, Hongquan Gao, and Tao Xue. "Research and Implementation of the Roll Position Automatic Adjustment System Based on Roller Parameters Prediction." Journal of Advanced Manufacturing Systems 18, no. 02 (May 15, 2019): 273–92. http://dx.doi.org/10.1142/s0219686719500148.

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The traditional roll position adjustment system on the one-time forming of cold-formed steel unit is not only inefficient, but also has poor stability. Moreover, the error of the roll parameters measured by the manual experience and the caliper measured is very large, which leads to low yield of product and high cost labor. In order to solve the above problems, this paper designs a set of roll position automatic adjustment system that can predict roll parameters. The automatic control technology, sensor technology and industrial communication technology are applied to this system and the high performance PLC controller is used as control core. Three-phase asynchronous motors are controlled by PLC(S7-1500) to drive gear connected with reducer and coupling so as to drive rolls connected with the upper and lower horizontal axis to move. In this paper, the PCA-BP algorithm is used to train the roller parameters prediction model so that the roller parameters of a given model of square-tube are predicted. Then the parameters of the new type of square-tube roll distribution are predicted, and the simulation results are compared with the actual production results while the automatic adjustment was completed. The field application shows that the prediction of square-tube roller parameters based on PCA-BP algorithm is more effective than manual measurement, and the whole system is simple in operation, stable in operation and the time used is less, the maximum measuring error of the roll displacement of the system is only [Formula: see text][Formula: see text]mm. The system can predict the corresponding roller parameters according to the specifications of the new model square-tube, and automatically complete the adjustment. The system not only improves the adjustment speed and accuracy, but also avoids the waste of manpower so that business productivity has been greatly improved.
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Shelton, Nicola, Oliver Duke-Williams, Laura van der Erve, Jack Britton, and Wei Xun. "Is studying medicine good for your health? Long-term health outcomes of a cohort of clinical medicine graduates in England and Wales in the ONS Longitudinal Study." BMJ Open 11, no. 3 (March 2021): e041224. http://dx.doi.org/10.1136/bmjopen-2020-041224.

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ObjectiveTo quantify the potential protective effect on health associated with study of a clinical medicine degree.DesignProspective population-based cohort data collected at census and linked over time: cohort born before 1976 and survived to 2011. Subgroup analysis on those who reported having a degree at 1991 census.SettingEngland and Wales population-based, including institutions.Participants159 116 men and 174 062 women; 13 390 men with degrees and 8143 women with degrees.Main outcome measureSelf-reported general health in 2011 based on logistic regression analysis.ResultsMale graduates had 92% higher odds of having good or very good health than male non-graduates after adjustment for age and socioeconomic position (CI 1.82 to 2.03). Female graduates had 85% higher odds of having good or very good health than female non-graduates after adjustment for age and socioeconomic position (CI 1.73 to 1.98). Male clinical medicine graduates had 45% higher odds of having good or very good health than male humanities graduates after adjustment for age and socioeconomic position (CI 1.09 to 1.92). Male physical sciences graduates also had higher odds of having good or very good health than male humanities graduates after adjustment for age and socioeconomic position, but life sciences and social science graduates did not. There were no significant differences by degree subject for women.ConclusionsMale graduates in clinical medicine have higher odds of good self-reported health. Knowledge of medicine may confer a health advantage for men above that of other degrees.
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Zhou, L., H. B. Zhang, and Qiang Liu. "Development of Surface Image Scanning Device Measurement Head Mechanism Based on AFM." Applied Mechanics and Materials 10-12 (December 2007): 828–32. http://dx.doi.org/10.4028/www.scientific.net/amm.10-12.828.

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For the measurement of ultra smooth surface topography, a surface image scanning device measurement head mechanism based on the principle of atomic force microscope (AFM) was designed. It uses coarse adjustment, semi-delicate adjustment, delicate adjustment triple-stage adjustment mechanism, and tests the atomic force between the sample and the probe by using laser generator, position sensitive detector (PSD), cantilever and probe. This mechanism has high setting accuracy and resetting accuracy, combined with two-dimension movable table, can scan the surface topography of samples.
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Mao, Yongle, Jiaqiang Yang, Dejun Yin, and Yangsheng Chen. "Sensorless interior permanent magnet synchronous motor control with rotational inertia adjustment." Advances in Mechanical Engineering 9, no. 1 (January 2017): 168781401668474. http://dx.doi.org/10.1177/1687814016684745.

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Mechanical model is generally required in high dynamic sensorless motor control schemes for zero phase lag estimation of rotor position and speed. However, the rotational inertia uncertainty will cause dynamic estimation errors, eventually resulting in performance deterioration of the sensorless control system. Therefore, this article proposes a high dynamic performance sensorless control strategy with online adjustment of the rotational inertia. Based on a synthetic back electromotive force model, the voltage equation of interior permanent magnet synchronous motor is transformed to that of an equivalent non-salient permanent magnet synchronous motor. Then, an extended nonlinear observer is designed for interior permanent magnet synchronous motor in the stator-fixed coordinate frame, with rotor position, speed and load torque simultaneously estimated. The effect of inaccurate rotational inertia on the estimation of rotor position and speed is investigated, and a novel rotational inertia adjustment approach that employs the gradient descent algorithm is proposed to suppress the dynamic estimation errors. The effectiveness of the proposed control strategy is demonstrated by experimental tests.
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48

Chu, Wenmin, Xiang Huang, Shuanggao Li, and Peihuang Lou. "A ball head positioning method based on hybrid force-position control." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 235, no. 8 (January 18, 2021): 1433–44. http://dx.doi.org/10.1177/0959651820987903.

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In the digital aircraft assembly system, the large component of aircraft is connected with the numerical control locator through a ball joint composed of a ball head and a ball socket. To ensure the posture adjustment accuracy of large component of aircraft, the clearance between the ball head and the ball socket is very small. Therefore, it is very difficult to accurately guide the ball head of large component of aircraft into the ball socket of the numerical control locator. Aiming at this problem, this article proposes a ball head positioning method based on hybrid force-position control, so that the ball socket can approach the ball head adaptively. First, according to the technical characteristics of the ball head positioning, the axes of the numerical control locator are divided into position control axis and force control axis, and the conditions to ensure the safety of ball head positioning are analyzed. Then the control model of ball head positioning based on hybrid force-position control is established and simulated by Simulink. Finally, a simulated posture adjustment system is built in the laboratory, and a series of ball head positioning experiments based on hybrid force-position control are carried out. The experimental results show that, compared with the traditional ball head positioning method, the ball head positioning process based on hybrid force-position control is more stable and faster, and the method can significantly reduce the lateral force. Moreover, the proposed method can be easily integrated into the existing posture adjustment system without additional hardware cost.
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Zhang, Guang Feng, Yan Fang Yang, Ji Quan Hu, Yi Yang, and Hong Wei Ma. "Solidworks Engineering Drawing Automatically Adjust Technology and Implementation." Advanced Materials Research 712-715 (June 2013): 1103–6. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1103.

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Aiming at the problem of the engineering drawing after generating from parametric design including unreasonable layout, disharmonious proportions and nonstandard labeling, with VB6.0 software for the tool, combined with the Access database, the paper proposes the method of engineering drawing automatic adjustment. It realizes automatic adding of the project chart attribute, automatic adjustment of view scale, view position, annotation position and generating of material list automatically. Through this technology, it can develop automatic system of adjusting engineering drawing, which greatly improves the efficiency of parametric design and applying to actual production.
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Li, Qiang, Li Li Yi, Shi Long Wang, and Jie Zhou. "Coupled Motion Control and Adjustment in Automatic Programming System of CNC Hobbing Machines." Applied Mechanics and Materials 86 (August 2011): 552–55. http://dx.doi.org/10.4028/www.scientific.net/amm.86.552.

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The motion relationship model of all axes involved in CNC hobbing machines is established. A single pitch adjustment method based on motion coupling relationship in gear hobbing is proposed. With position adjustment of only 0 to 1 pitch, the same motion coupling relationship during the whole machining process can be guaranteed. Though automatic programming system based on SINUMERIK 840D, the coupled motion control and adjustment in CNC hobbing process is realized. And practical application in CNC hobbing machines shows that this method can reduced adjustment time effectively during process, improving processing efficiency.
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