Relevant bibliographies by topics / Axial tilt / Journal articles
To see the other types of publications on this topic, follow the link: Axial tilt.

Journal articles on the topic 'Axial tilt'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Axial tilt.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Sunil, P. S. "Earth’s Axial Tilt: The Specifics." Journal Of The Geological Society Of India 100, no. 10 (2024): 1502. http://dx.doi.org/10.17491/jgsi/2024/174008.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Cui, Jintai, Huifang Li, Caifu Qian, and Zhiwei Wu. "Study on the Stress Intensity Factor of Tilt Crack on the Inner Surface of Pipeline." Journal of Physics: Conference Series 2845, no. 1 (2024): 012051. http://dx.doi.org/10.1088/1742-6596/2845/1/012051.

Full text
Abstract:
Abstract Cracking is one of the key factors jeopardizing the safe operation of pipelines, and Stress Intensity Factor (SIF) is an important parameter for evaluating the degree of crack danger. Cracks on engineering pipelines often appear in irregular patterns. In this paper, with FRANC3D crack analysis software, SIFs of the circumferential tilt cracks and axial tile cracks on the inner wall surface of a pipe under internal pressure were studied with concentration on the effects of the crack tilt angles. Mode I stress intensity factor weakening effect KI/K0 was defined and influences of the cra
APA, Harvard, Vancouver, ISO, and other styles
3

Leighton, Matthew P., Laurent Kreplak, and Andrew D. Rutenberg. "Chiral phase-coexistence in compressed double-twist elastomers." Soft Matter 17, no. 19 (2021): 5018–24. http://dx.doi.org/10.1039/d1sm00181g.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Howard, Robert F. "Axial tilt angles of sunspot groups." Solar Physics 136, no. 2 (1991): 251–62. http://dx.doi.org/10.1007/bf00146534.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Shinshi, Tadahiko, Daisuke Shimizu, Kazuhide Kodeki, and Kazuhiko Fukushima. "A Fast Steering Mirror Using a Compact Magnetic Suspension and Voice Coil Motors for Observation Satellites." Electronics 9, no. 12 (2020): 1997. http://dx.doi.org/10.3390/electronics9121997.

Full text
Abstract:
Fast steering mirrors (FSMs) are used to correct images observed by satellites. FSMs need to have large apertures and realize high precision and the positioning of the mirror in the tip-tilt and axial directions needs to be highly precise and highly responsive in order to capture large-scale, high-resolution images. An FSM with a large-diameter mirror supported by a compact magnetic suspension and driven by long-stroke voice coil motors (VCMs) is proposed in this paper. The magnetic suspension and VCM actuators enable the mirror to be highly responsive and to have long-range movement in the ti
APA, Harvard, Vancouver, ISO, and other styles
6

Isildak, R. Suat, H. Asuman Küçüközer, and Hakan Isik. "Measuring Earth’s axial tilt with a telescope." Physics Education 52, no. 3 (2017): 033003. http://dx.doi.org/10.1088/1361-6552/aa5ee9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

SUMINO, Masayuki, and Satoshi UENO. "Tilt control with axial self-bearing motor." Transactions of the JSME (in Japanese) 80, no. 815 (2014): DR0207. http://dx.doi.org/10.1299/transjsme.2014dr0207.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Rubincam, D. P. "Mars: Change in Axial Tilt Due to Climate?" Science 248, no. 4956 (1990): 720–21. http://dx.doi.org/10.1126/science.248.4956.720.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

P.S., Krasil'nikov. "On the exo-planet precession under torqes due to three celestial bodies with the evolution of the satellite's orbit." Vestnik Udmurtskogo Universiteta. Matematika. Mekhanika. Komp'yuternye Nauki 32, no. 2 (2022): 319–37. http://dx.doi.org/10.35634/vm220210.

Full text
Abstract:
We investigate the non-resonant evolution of the axial tilt of hypothetical exo-Earth in the gravitational field of a star, planet's satellite (exo-Moon) and outer planet (exo-Jupiter). The exo-Earth is assumed to be rigid, axially symmetric ($A=B$) and almost spherical. We assume the orbits of the both exo-planets to be Keplerian ellipses with focus in the star, the orbit of exo-Moon to be an evolving Keplerian ellipse with slowly changing of ascending node longitude and periapsis argument. Assuming the frequencies of the unperturbed orbital elliptical motion to be of the order of unity, we o
APA, Harvard, Vancouver, ISO, and other styles
10

Miyake, J., T. Murase, Y. Yamanaka, H. Moritomo, K. Sugamoto, and H. Yoshikawa. "Three-dimensional deformity analysis of malunited distal radius fractures and their influence on wrist and forearm motion." Journal of Hand Surgery (European Volume) 37, no. 6 (2012): 506–12. http://dx.doi.org/10.1177/1753193412443644.

Full text
Abstract:
Little information exists about three-dimensional (3-D) deformity patterns of malunited distal radius fractures including axial deformity. The current study aimed to clarify the 3-D deformity pattern of malunited distal radius fractures and reveal the influence of osseous deformities, including axial rotation deformity, on wrist and forearm motion. The deformity of 20 dorsally tilted malunions were evaluated using 3-D computer models created from CT data, and correlations between deformity components and range of motion were assessed. The 3-D deformity analysis showed that axial malalignment i
APA, Harvard, Vancouver, ISO, and other styles
11

Seo, Jeong Hyun, and Seung Hyen Lee. "Variability in Optic Nerve Head Morphology in High Axial Myopia and Its Association with Glaucoma." Journal of the Korean Ophthalmological Society 65, no. 10 (2024): 665–74. http://dx.doi.org/10.3341/jkos.2024.65.10.665.

Full text
Abstract:
Purpose: To investigate optic disc morphology in high axial myopia and its associations with the deep-layer structure of the optic disc using optical coherence tomography and glaucoma.Methods: We retrospectively reviewed the medical records of 69 eyes (33 normal and 36 glaucomatous eyes) with an axial length of 26-27 mm. The eyes were categorized into two groups based on the optic disc tilt ratio (≥ 1.3 or < 1.3). Characteristics of optic disc morphology, including lamina cribrosa depth, peripapillary atrophy width, and Bruch’s membrane opening area, were compared between the two groups. Fu
APA, Harvard, Vancouver, ISO, and other styles
12

Kim, Minha, Euntak Hong, and Eun Ji Lee. "Optic Disc Morphology and Paracentral Scotoma in Patients with Open-Angle Glaucoma and Myopia." Journal of Clinical Medicine 12, no. 9 (2023): 3295. http://dx.doi.org/10.3390/jcm12093295.

Full text
Abstract:
This study’s aim was to investigate the association between optic disc morphology and the occurrence of paracentral scotoma in eyes with open-angle glaucoma (OAG) and myopia. Two-hundred and eleven myopic eyes with OAG were classified into three groups according to the location of visual field (VF) defect (99 paracentral scotoma, 65 peripheral scotoma, and 47 no VF defect). Optic disc morphology was assessed based on the tilt ratio and eccentricity of the central retinal vessel trunk (CRVT). Clinical characteristics of the three groups were compared, and factors affecting the occurrence of par
APA, Harvard, Vancouver, ISO, and other styles
13

Zhang, Penghai, and Yaolong Chen. "Analysis of error motions of axial locking-prevention hydrostatic spindle." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 233, no. 1 (2018): 3–17. http://dx.doi.org/10.1177/1350650118769769.

Full text
Abstract:
Hydrostatic spindles are widely used in precision optical grinder and lathe. Their high precision comes from the error averaging effect of oil film. The purpose of this paper is to give the quantitative analysis of the error averaging effect for a newly developed axial locking-prevention hydrostatic spindle. An approximate error motion model of the hydrostatic spindle is established to analyze the internal relationship between the geometric errors of the shaft and the error motions of the spindle including radial, tilt and axial error motions. The theoretical analysis shows that, the roundness
APA, Harvard, Vancouver, ISO, and other styles
14

Ha, J. M., and G. P. Peterson. "Capillary Performance of Evaporating Flow in Micro Grooves: An Analytical Approach for Very Small Tilt Angles." Journal of Heat Transfer 120, no. 2 (1998): 452–57. http://dx.doi.org/10.1115/1.2824270.

Full text
Abstract:
The axial flow of an evaporating thin film through a V-shaped micro channel was investigated for the case of a grooved plate inclined with a very small tilt angle. For this problem, the addition of the gravity term caused by the tilt angle alters the form of the governing equation from linear to nonlinear. Because the effect of the tilt angle is very small, a perturbation method was applied to obtain a first order perturbation solution of R = R0 + εR1, where R0 is the undisturbed solution caused by the tilt angle. A generalized graph of the nondimensional radius of curvature as a function of t
APA, Harvard, Vancouver, ISO, and other styles
15

BOULANGER, NICOLAS, PATRICE MEUNIER, and STÉPHANE LE DIZÈS. "Tilt-induced instability of a stratified vortex." Journal of Fluid Mechanics 596 (January 17, 2008): 1–20. http://dx.doi.org/10.1017/s0022112007009263.

Full text
Abstract:
This experimental and theoretical study considers the dynamics and the instability of a Lamb–Oseen vortex in a stably stratified fluid. In a companion paper, it was shown that tilting the vortex axis with respect to the direction of stratification induces the formation of a rim of strong axial flow near a critical radius when the Froude number of the vortex is larger than one.Here, we demonstrate that this tilt-induced flow is responsible for a three-dimensional instability. We show that the instability results from a shear instability of the basic axial flow in the critical-layer region. The
APA, Harvard, Vancouver, ISO, and other styles
16

Haigh, S. J., H. Sawada, and Angus I. Kirkland. "Optimal tilt magnitude determination for aberration-corrected super resolution exit wave function reconstruction." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 367, no. 1903 (2009): 3755–71. http://dx.doi.org/10.1098/rsta.2009.0124.

Full text
Abstract:
Transmission electron microscope (TEM) images recorded under tilted illumination conditions transfer higher spatial frequencies than axial images. This super resolution information transfer is highly directional in a single image, but can be extended in all directions through the use of complementary beam tilts during exit wave function reconstruction. We have determined the optimal experimental tilt magnitude for aperture synthesis in an aberration-corrected TEM. It is shown that electron-optical aberration correction allows the use of larger tilt angles and reduces the constraints that are i
APA, Harvard, Vancouver, ISO, and other styles
17

Honda, Hideki, Naomi Kobayashi, Emi Kamono, et al. "Effect of 3-Dimensional Versus Single-Plane Changes in Pelvic Dynamics on Range of Motion in Hips With Femoroacetabular Impingement: A Computer Simulation Analysis." Orthopaedic Journal of Sports Medicine 10, no. 9 (2022): 232596712211236. http://dx.doi.org/10.1177/23259671221123604.

Full text
Abstract:
Background: Femoroacetabular impingement (FAI) is primarily caused by bony impingement between the acetabulum and femoral neck during hip motion. Increasing posterior pelvic tilt improves hip range of motion in patients with FAI. Purpose: To use computer simulation analysis to compare the effects of 3-dimensional (3D) changes in pelvic tilt (sagittal tilt [St], axial rotation, and coronal tilt) with changes in a single plane (St), with the aim of improving range of motion in patients with FAI. Study Design: Controlled laboratory study. Methods: We evaluated 43 patients with FAI treated by arth
APA, Harvard, Vancouver, ISO, and other styles
18

Nakahara, Hisashi, Kentaro Emoto, and Takeshi Nishimura. "Extending the formulation of the spatial autocorrelation (SPAC) method to strain, rotation and tilt." Geophysical Journal International 227, no. 1 (2021): 287–302. http://dx.doi.org/10.1093/gji/ggab217.

Full text
Abstract:
SUMMARY The spatial autocorrelation (SPAC) method has been applied to ambient seismic noise measured by arrays of translational seismometers for inverting phase-velocity dispersion curves of Rayleigh or Love waves for shallow S-wave velocity structure. Recently, it is becoming possible to observe wave spatial gradients such as strain, rotation and tilt owing to the development of dense seismic networks and improving measurement technologies. Therefore, it is desirable to extend the formulation of the SPAC method to strain, rotation and tilt. This study presents analytical expressions of cross-
APA, Harvard, Vancouver, ISO, and other styles
19

Bakhtiari, Majid, and Kamran Daneshjou. "Long-term evaluation of orbital dynamics in the Sun-planet system considering axial-tilt." Modern Physics Letters A 33, no. 15 (2018): 1850083. http://dx.doi.org/10.1142/s0217732318500839.

Full text
Abstract:
In this paper, the axial-tilt (obliquity) effect of planets on the motion of planets’ orbiter in prolonged space missions has been investigated in the presence of the Sun gravity. The proposed model is based on non-simplified perturbed dynamic equations of planetary orbiter motion. From a new point of view, in this work, the dynamic equations regarding a disturbing body in elliptic inclined three-dimensional orbit are derived. The accuracy of this non-simplified method is validated with dual-averaged method employed on a generalized Earth–Moon system. It is shown that the neglected short-time
APA, Harvard, Vancouver, ISO, and other styles
20

Cordrey, Keith J., Magda Stanczyk, Charlotte A. L. Dixon, et al. "Structural and dielectric studies of the phase behaviour of the topological ferroelectric La1−xNdxTaO4." Dalton Transactions 44, no. 23 (2015): 10673–80. http://dx.doi.org/10.1039/c4dt03721a.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Kyung, Min Gyu, Yun Jae Cho, Junpyo Lee, et al. "Relationship between talofibular impingement and increased talar tilt in incongruent varus ankle osteoarthritis." Journal of Orthopaedic Surgery 29, no. 3 (2021): 230949902110452. http://dx.doi.org/10.1177/23094990211045219.

Full text
Abstract:
Purpose This study aimed to evaluate the relationship between talofibular impingement and increased talar tilt in incongruent varus ankle osteoarthritis. Methods: Incongruent varus ankle osteoarthritis was defined as a talar tilt of more than 4° on standard ankle anteroposterior radiographs. We retrospectively reviewed 30 patients with unilateral incongruent varus ankle osteoarthritis with normal alignment of the contralateral ankle. All patients underwent bilateral weightbearing computed tomography and standing plain radiographs. The talar tilt and the distance between the talar lateral proce
APA, Harvard, Vancouver, ISO, and other styles
22

Howard, Robert F. "Axial tilt angles of active regions and their polarity separations." Solar Physics 145, no. 1 (1993): 105–9. http://dx.doi.org/10.1007/bf00627986.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Xiong, Ran, Cheng Chen, Li Yin, et al. "How Do Axial Scan Orientation Deviations Affect the Measurements of Knee Anatomical Parameters Associated with Patellofemoral Instability? A Simulated Computed Tomography Study." Journal of Knee Surgery 31, no. 05 (2017): 425–32. http://dx.doi.org/10.1055/s-0037-1604141.

Full text
Abstract:
AbstractThe purpose of this study was to detect the correlation between axial scan orientation discrepancy and the knee anatomical parameters associated with patellofemoral instability during computed tomography (CT) scanning. CT scan data of 16 knees from 16 healthy subjects were retrieved. The reslicing processes were performed to simulate different axial scan orientations generated due to leg adduction/abduction during CT scanning. Eight parameters (tibial tubercle to trochlear groove [TT-TG], tibial tubercle to posterior cruciate ligament [TT-PCL], patellar tilt, lateral trochlear inclinat
APA, Harvard, Vancouver, ISO, and other styles
24

Dahmen, Tim, Jean-Pierre Baudoin, Andrew R. Lupini, Christian Kübel, Philipp Slusallek, and Niels de Jonge. "Combined Scanning Transmission Electron Microscopy Tilt- and Focal Series." Microscopy and Microanalysis 20, no. 2 (2014): 548–60. http://dx.doi.org/10.1017/s1431927614000075.

Full text
Abstract:
AbstractIn this study, a combined tilt- and focal series is proposed as a new recording scheme for high-angle annular dark-field scanning transmission electron microscopy (STEM) tomography. Three-dimensional (3D) data were acquired by mechanically tilting the specimen, and recording a through-focal series at each tilt direction. The sample was a whole-mount macrophage cell with embedded gold nanoparticles. The tilt–focal algebraic reconstruction technique (TF-ART) is introduced as a new algorithm to reconstruct tomograms from such combined tilt- and focal series. The feasibility of TF-ART was
APA, Harvard, Vancouver, ISO, and other styles
25

Raghuprasad, Puthalath Koroth. "Synchronous, Nonsynchronous and Negative Rotations: How Spin and Gravity Orchestrate Planetary Motions." Applied Physics Research 12, no. 2 (2020): 1. http://dx.doi.org/10.5539/apr.v12n2p1.

Full text
Abstract:
This study identifies the unique features accompanying the phenomenon of synchronous rotation of the major (proximal) satellites of the gas giants and the earth’s moon, and the special features leading to the ‘negative’ rotation of Venus, Uranus and Pluto, as well as the most peripheral small satellites of the gas giants. Such features help us understand how these phenomena occur but also, by combining all of the observations help explain other (regular) planetary motions as well. In the synchronously rotating satellites, the salient features are the satellites&am
APA, Harvard, Vancouver, ISO, and other styles
26

Yoon, Youngsik, Min Gyu Kyung, Yun Jae Cho, Dong-Oh Lee, Dong Yeon Lee, and HyeSun Park. "Relationship Between Talofibular Impingement and Increased Talar Tilt in Incongruent Varus Ankle Osteoarthritis." Foot & Ankle Orthopaedics 7, no. 4 (2022): 2473011421S0101. http://dx.doi.org/10.1177/2473011421s01014.

Full text
Abstract:
Category: Ankle; Ankle Arthritis Introduction/Purpose: Recently, talofibular bony impingement has been postulated to be a source of ankle pain. This study aimed to evaluate the relationship between talofibular impingement and increased talar tilt in incongruent varus ankle OA patients using bilateral weightbearing CT. Methods: Incongruent varus ankle osteoarthritis was defined as a talar tilt of more than 4° on standard ankle anteroposterior radiographs. We retrospectively reviewed 30 patients with unilateral incongruent varus ankle osteoarthritis with normal alignment of the contralateral ank
APA, Harvard, Vancouver, ISO, and other styles
27

Jost, Gregory F., Jonas Walti, Luigi Mariani, and Philippe Cattin. "A novel approach to navigated implantation of S-2 alar iliac screws using inertial measurement units." Journal of Neurosurgery: Spine 24, no. 3 (2016): 447–53. http://dx.doi.org/10.3171/2015.6.spine1594.

Full text
Abstract:
OBJECT The authors report on a novel method of intraoperative navigation with inertial measurement units (IMUs) for implantation of S-2 alar iliac (S2AI) screws in sacropelvic fixation of the human spine and its application in cadaveric specimens. METHODS Screw trajectories were planned on a multiplanar reconstruction of the preoperative CT scan. The pedicle finder and screwdriver were equipped with IMUs to guide the axial and sagittal tilt angles of the planned trajectory, and navigation software was developed. The entry points were chosen according to anatomical landmarks on the exposed spin
APA, Harvard, Vancouver, ISO, and other styles
28

Yang, Yongsheng, Minzhen Wang, Xinheng Wang, Cheng Li, Ziwen Shang, and Liying Zhao. "A Novel Monocular Vision Technique for the Detection of Electric Transmission Tower Tilting Trend." Applied Sciences 13, no. 1 (2022): 407. http://dx.doi.org/10.3390/app13010407.

Full text
Abstract:
Transmission lines are primarily deployed overhead, and the transmission tower, acting as the fulcrum, can be affected by the unbalanced force of the wire and extreme weather, resulting in the transmission tower tilt, deformation, or collapse. This can jeopardize the safe operation of the power grid and even cause widespread failures, resulting in significant economic losses. Given the limitations of current tower tilt detection methods, this paper proposes a tower tilt detection and analysis method based on monocular vision images. The monocular camera collects the profile and contour feature
APA, Harvard, Vancouver, ISO, and other styles
29

Holub, Michal, Jan Vetiska, Josef Knobloch, and Petr Minar. "Analysis of Machine Tool Spindles under Load." Applied Mechanics and Materials 821 (January 2016): 608–13. http://dx.doi.org/10.4028/www.scientific.net/amm.821.608.

Full text
Abstract:
This paper deals with a new experimental approach to the analysis of radial, axial, and tilt error movements of machine tool spindles under load. The main focus is on the identification of error spindle movements under different machine operation conditions between 500 - 5000 rev / min and loads in the range of 50 - 500 N. Errors of the spindle movements are measured on the cylindrical workpiece using capacitance sensors for different loads. The analysis of measurements of radial, axial, and tilt error movements of machine tool spindle indicates a dependency of loads and measured errors. The i
APA, Harvard, Vancouver, ISO, and other styles
30

Soto, Gabriel E., Stephen J. Young, Maryann E. Martone, et al. "Tomographic methods for detailed examination of large structures in the nervous system." Proceedings, annual meeting, Electron Microscopy Society of America 51 (August 1, 1993): 96–97. http://dx.doi.org/10.1017/s0424820100146321.

Full text
Abstract:
One of the limitations of electron microscopy has been the requirement for very thin samples to allow penetration of the electron beam. It is often the case that structures of interest are not contained within a single thin section. In these cases, serial sectioning techniques are required to reconstruct the object in its entirety. The use of higher voltage electron microscopes has allowed researchers to examine specimens up to fifty times thicker than those suitable for a conventional TEM. However, images from thick sections are often difficult to interpret as the electron micrograph is essen
APA, Harvard, Vancouver, ISO, and other styles
31

Malovic, Miodrag, Ljiljana Brajovic, and Tomislav Sekara. "Twenty-four position tilt test for accelerometer cross-axial sensitivity compensation." Vojnotehnicki glasnik 65, no. 3 (2017): 651–61. http://dx.doi.org/10.5937/vojtehg65-13137.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Yanagihara, Ryan T., Priscilla Nobrega, and Philip P. Chen. "Pseudophakic adult with progressive optic disc tilt and axial length elongation." American Journal of Ophthalmology Case Reports 19 (September 2020): 100814. http://dx.doi.org/10.1016/j.ajoc.2020.100814.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Li, Zhongqiu, Qi Wang, and Tingting Wang. "Analysis of Axial-Flow and Tilt Aerodynamic Characteristics of Ducted Propellers." Open Journal of Applied Sciences 15, no. 03 (2025): 700–714. https://doi.org/10.4236/ojapps.2025.153045.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Testoni, Nicola, Federica Zonzini, Alessandro Marzani, Valentina Scarponi, and Luca De Marchi. "A Tilt Sensor Node Embedding a Data-Fusion Algorithm for Vibration-Based SHM." Electronics 8, no. 1 (2019): 45. http://dx.doi.org/10.3390/electronics8010045.

Full text
Abstract:
This work describes a miniaturized sensor network based on low-power, light-weight and small footprint microelectromechanical (MEMS) sensor nodes capable to simultaneously measure tri-axial accelerations and tri-axial angular velocities. A real-time data fusion algorithm based on complementary filters is applied to extract tilt angles. The resulting device is designed to show competitive performance over the whole frequency range of the inertial units. Besides the capability to provide accurate measurements both in static and dynamic conditions, an optimization process has been designed to eff
APA, Harvard, Vancouver, ISO, and other styles
35

Kim, Young Soo, Ji Hun Kim, Je Heon Song, et al. "Tip-Tilt Tests by Using Eddy Current Measuring Sensors." Applied Mechanics and Materials 870 (September 2017): 73–78. http://dx.doi.org/10.4028/www.scientific.net/amm.870.73.

Full text
Abstract:
Fast-steering Secondary Mirror (FSM) will be installed to the Giant Magellan Telescope (GMT) as a first generation secondary mirror. The FSM implements a tip-tilt mechanism which compensates image degradations caused by wind turbulence and structure jitter. A prototype segment of the FSM has been developed, which comprised of a dummy mirror, a mirror cell, axial and lateral supports, vacuum devices, etc. Several test-bed frames have been developed to hang the segment and to test tip-tilt functionalities. They have been designed, manufactured, assembled, and verified successfully step by step.
APA, Harvard, Vancouver, ISO, and other styles
36

Merkle, K. L., and L. J. Thompson. "Hrem Of General And Twist Grain Boundaries." Microscopy and Microanalysis 5, S2 (1999): 108–9. http://dx.doi.org/10.1017/s1431927600013866.

Full text
Abstract:
The observation of atomic-scale structures of grain boundaries (GBs) via axial illumination HREM has been largely restricted to tilt GBs, due to the requirement that the electron beam be parallel to a low-index zone axis on both sides of the interface. This condition can be fulfilled for all tilt GBs with misorientation about a low-index direction. The information obtained through HREM studies in many materials has brought important insights concerning the atomic-scale structure of such boundaries. However, it is well known that tilt GBs occupy only an infinitesimally small fraction of the 5-d
APA, Harvard, Vancouver, ISO, and other styles
37

Keeley, David W., Gretchen D. Oliver, Christopher P. Dougherty, and Michael R. Torry. "Lower Body Predictors of Glenohumeral Compressive Force in High School Baseball Pitchers." Journal of Applied Biomechanics 31, no. 3 (2015): 181–88. http://dx.doi.org/10.1123/jab.2011-0229.

Full text
Abstract:
The purpose of this study was to better understand how lower body kinematics relate to peak glenohumeral compressive force and develop a regression model accounting for variability in peak glenohumeral compressive force. Data were collected for 34 pitchers. Average peak glenohumeral compressive force was 1.72% ± 33% body weight (1334.9 N ± 257.5). Correlation coefficients revealed 5 kinematic variables correlated to peak glenohumeral compressive force (P < .01, α = .025). Regression models indicated 78.5% of the variance in peak glenohumeral compressive force (R2 = .785, P < .01) was exp
APA, Harvard, Vancouver, ISO, and other styles
38

Zhao, Bo, Xinqing Hu, Haifeng Li, Yonghui Liu, Baocheng Zhang, and Qingbing Dong. "A New Approach for Modeling Mixed Lubricated Piston-Cylinder Pairs of Variable Lengths in Swash-Plate Axial Piston Pumps." Materials 14, no. 19 (2021): 5836. http://dx.doi.org/10.3390/ma14195836.

Full text
Abstract:
The swash-plate axial piston pump is one of the most widely used pumps due to its simplicity and compactness in structure. In such a pump, the piston-cylinder system plays a crucial role, with its lubrication characteristics greatly affecting the overall pumping performance. A new numerical approach is proposed in this study for modeling mixed lubricated piston-cylinder interfaces of variable lengths in swash-plate axial piston pumps in the framework of multibody dynamics. The approach couples the hydrodynamic mixed lubrication model of the piston-cylinder interface with the multibody dynamics
APA, Harvard, Vancouver, ISO, and other styles
39

Baba, Norio, Norihiko Ichise, and Syunya Watanabe. "Experimental study on the restoration from a tilt-azimuth series for improvement in resolution." Proceedings, annual meeting, Electron Microscopy Society of America 53 (August 13, 1995): 636–37. http://dx.doi.org/10.1017/s042482010013955x.

Full text
Abstract:
The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-fre
APA, Harvard, Vancouver, ISO, and other styles
40

Łuczak, Sergiusz, Robert Grepl, and Maciej Bodnicki. "Selection of MEMS Accelerometers for Tilt Measurements." Journal of Sensors 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/9796146.

Full text
Abstract:
In order to build a tilt sensor having a desired sensitivity and measuring range, one should select an appropriate type, orientation, and initial position of an accelerometer. Various cases of tilt measurements are considered: determining exclusively pitch, axial tilt, or both pitch and roll, where Cartesian components of the gravity acceleration are measured by means of low-g uni-, bi-, tri-, or multiaxial micromachined accelerometers. 15 different orientations of such accelerometers are distinguished (each illustrated with respective graphics) and related to the relevant mathematical formula
APA, Harvard, Vancouver, ISO, and other styles
41

Zhu, He, Yuhao Du, Hong Nie, Zhiyang Xin, and Xi Geng. "Experimental Investigation of Aerodynamic Interaction in Non-Parallel Tandem Dual-Rotor Systems for Tiltrotor UAV." Drones 9, no. 5 (2025): 374. https://doi.org/10.3390/drones9050374.

Full text
Abstract:
The distributed electric tilt-rotor Unmanned Aerial Vehicle (UAV) combines the vertical take-off and landing (VTOL) capability of helicopters with the high-speed cruise performance of fixed-wing aircraft, offering a transformative solution for Urban Air Mobility (UAM). However, aerodynamic interference between rotors is a new challenge to improving their flight efficiency, especially the dynamic interactions during the transition phase of non-parallel tandem dual-rotor systems, which require in-depth investigation. This study focuses on the aerodynamic performance evolution of the tilt-rotor s
APA, Harvard, Vancouver, ISO, and other styles
42

Yamada, Tsuyoshi, Ryo Inada, and Kazuhisa Ito. "Designing a Model Predictive Controller for Displacement Control of Axial Piston Pump." International Journal of Automation Technology 18, no. 1 (2024): 113–27. http://dx.doi.org/10.20965/ijat.2024.p0113.

Full text
Abstract:
Variable displacement hydraulic pumps are widely used for energy efficiency, and they often have a mechanical feedback mechanism to ensure target tracking control performance and stability of tilt angle control. Furthermore, there are many examples which add electronic control to realize higher tracking control performance. However, in such cases, the control performance is significantly affected by the dynamic characteristics of the mechanical feedback mechanism, and this problem prevent its widespread use. Additionally, tilt angle control is susceptible to changes in dynamic characteristics
APA, Harvard, Vancouver, ISO, and other styles
43

Gatot, Albert, Ilan Shelef, Michael Nash, Jacob T. Cohen, and Dan M. Fliss. "30° tilt axial computed tomography imaging of the facial skeleton: Normal anatomy." Operative Techniques in Otolaryngology-Head and Neck Surgery 11, no. 4 (2000): 271–75. http://dx.doi.org/10.1053/otot.2000.19700.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Gatot, Albert, Ilan Shelef, Micheal Nash, Jacob T. Cohen, and Dan M. Fliss. "30° tilt axial computed tomography imaging of the facial skeleton: Pathologic conditions." Operative Techniques in Otolaryngology-Head and Neck Surgery 11, no. 4 (2000): 276–78. http://dx.doi.org/10.1053/otot.2000.19703.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Zarei, M. "Closed loop configuration in the axial flux tilt control of a PWR." Annals of Nuclear Energy 134 (December 2019): 47–53. http://dx.doi.org/10.1016/j.anucene.2019.05.059.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Howard, Robert F. "How growth and decay of sunspot groups depend on axial tilt angles." Solar Physics 145, no. 1 (1993): 95–103. http://dx.doi.org/10.1007/bf00627985.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Lee, O.-Sung, Soyeon Ahn, and Yong Lee. "Changes of Sagittal and Axial Alignments of Patella after Open- and Closed-Wedge High-Tibial Osteotomy: A Systematic Review and Meta-Analysis." Journal of Knee Surgery 31, no. 07 (2017): 625–34. http://dx.doi.org/10.1055/s-0037-1605561.

Full text
Abstract:
AbstractThe present systematic review and meta-analysis were aimed to verify the effect of open-wedge (OW) and closed-wedge (CW) high-tibial osteotomy (HTO) on sagittal and axial alignments of the patella. A vigorous search was performed for studies that compared the changes of sagittal and axial alignments of patella after OW and CW HTO. After evaluating publication bias and heterogeneity, we aggregated variables by using the random-effects model. The weighted mean differences in sagittal and axial alignment of patella were estimated with 95% confidence intervals. Also, we analyzed the change
APA, Harvard, Vancouver, ISO, and other styles
48

Li, Guo Ping, Yan Bin Gao, Ting Jun Wang, and Lian Wu Guan. "Error Auto-Compensation Methods of Improved Single-Axial Rotation INS." Advanced Materials Research 791-793 (September 2013): 1046–49. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.1046.

Full text
Abstract:
An Auto-Compensation of inertial navigation system (INS) based on improved single-axis rotation has been proposed in the paper. Inertial Measurement Unit (IMU) is tilt mounted, e.g. neither perpendicularly, nor coaxially, with the rotation axis. Analysis and derivation show that this angle arrangement of IMU can restrain the expansion of the system errors caused by IMU. Simulations demonstrated the coincidence of the theoretical analysis and the system performances
APA, Harvard, Vancouver, ISO, and other styles
49

Liu, Hong, Zeng Xiong Peng, and Chu Jing Shen. "Film Shape Research of Slipper Bearing in Axial Piston Pump Based on Genetic Algorithms." Advanced Materials Research 301-303 (July 2011): 1533–38. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.1533.

Full text
Abstract:
In the process of axial piston pump working, centrifugal moment causes slipper bearing to tilt and wedge oil film could be formed between the slipper and swashplate. The film shape corresponds with its pressure field. By force equilibrium analysis, the calculation of film shape can be simplified as a single objective optimization problem with two decision variables, which uses the normal force balance and the flow equilibrium as equality constraints and treats the slipper tilt angle and the azimuth angle as inequality constraints.The Niche Genetic Algorithm was applied to solve this problem. T
APA, Harvard, Vancouver, ISO, and other styles
50

Howard, Robert F. "The Development of Sunspot Groups." International Astronomical Union Colloquium 141 (1993): 492–94. http://dx.doi.org/10.1017/s0252921100029699.

Full text
Abstract:
AbstractIt is shown that the growth and decay rates of sunspot groups are both a function of the axial tilt angles of the groups. Both of these rates reach a maximum near the average tilt angle, which is around +5°, not 0°. (A positive tilt angle represents the situation where the leading spots are equatorward of the following spots). The fact that this peak angle is close to the average tilt and not 0° suggests that this may be the orientation of the subsurface toroidal flux tube(s) from which the sunspot groups form. In general, spot groups with positive tilt angles show faster average perce
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography