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1661
Influence and Analysis of Trapped-oil on Output Characteristic of Gear Motor
Published 2022-02-01“…To clarify characteristics of trapped-oil of gear motor and its influence on output torque and output speed, in terms of meshing and oil trapping process of motor gear pair, the medium pressure distribution on the tooth flanks and the solution model of oil trapping, the coupling calculation formulas of output torque, output speed and trapped oil pressure are established. …”
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1662
RIGID-FLEXIBLE COUPLING DYNAMIC STRESS AND FATIGUE ANALYSIS OF DRIVING WHEELS UNDER TYPICAL WORKING CONDITIONS (MT)
Published 2022-01-01“…On this basis, the fatigue life of the nine tooth driving wheel teeth was analyzed. The results show that: with the increase of the number of driving wheel teeth, the maximum stress in the root area of the driving wheel teeth will decrease; the root area of the driving wheel teeth is the weakest position of the teeth, and the fatigue life is the shortest under the steering condition. …”
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1663
DESIGN AND ANALYSIS OF A MECHANICAL INTERFACE WITH POSE ADJUSTMENT FUNCTION OF MACHINE TOOL MODULES
Published 2021-01-01“…A mechanical interface device which can micro-adjust the module pose and ensure the stiffness of the machine tool is proposed in this paper. The comb-tooth joint surface and auxiliary supports used in the interface can realize the precise positioning and improve the connection stability between the machine-tool modules. …”
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1664
THIN SEAM SHEARER RELIABILITY ANALYSIS UNDER COMPLEX COAL SEAM OCCURRENCE CONDITIONS
Published 2016-01-01“…Through the fatigue life calculation,obtained the minimum fatigue cycles of annular gear tooth surface. Put forward improvement methods on the weak area and prolong its service life. …”
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1665
EVALUATION OF KNOWLEDGE LEVEL AND APPROACHES IN TRAUMATIC DENTAL INJURIES AMONG DIFFERENT MEDICAL OCCUPATIONAL GROUPS
Published 2019-12-01“…Particularly in avulsion cases, the knowledge level of the participants was found to be low in terms of treatment procedures related to tooth replacement.Conclusions:In this study, the knowledge of pediatricians, emergency physicians and dentists on dental trauma was evaluated, and according to the results of this survey, it was concluded that the issue of emergency interventions in dental traumas should be more emphasized in the training of these occupational groups.Keywords:Trauma, child, emergency treatment, dentistry…”
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1666
NUMERICAL SIMULATION OF COAL BREAKING PROCESS OF SPIRAL DRUM UNDER COMPLEX COAL SEAM
Published 2018-01-01“…Using ANSYS/ls-dyna software to establish the complex coal seam under the condition of the spiral drum coupling model of coal and rock,different position of a cut and dirt band containing inclusions spiral drum impact load distribution and the shape of coal and rock deformation; the time history curves of the stress and strain of the alloy head and the tooth body are obtained by the dynamic analysis of the cutting teeth,and the stress distribution law of the cutting teeth in the working process was found out. …”
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1667
Boon of MTA Apexification in Young Permanent Posterior Teeth
Published 2014-01-01“…Single visit apexification using mineral trioxide aggregate (MTA) is a new boon in effective management of nonvital tooth with an open apex which has steadily gained popularity with clinicians; also it shortens the treatment period and improves patient compliance. …”
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1668
Analysis of the Influence of Gear Clamping Tilt Error on Cylindrical Gear Accuracy in Testing
Published 2019-01-01“…By using the Small Displacement Torsor( SDT) Method,the tooth surface model with error is constructed,the influence of clamping tilting error on gear deviation accuracy is analyzed. …”
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1669
Predictive Modeling of a Two-Stage Gearbox towards Fault Detection
Published 2016-01-01“…Model prediction and experimental data are compared for healthy gear operation and a seeded fault gear with a missing tooth. The comparison confirms that both the frequency content and the predicted, relative response magnitudes match with physical measurements. …”
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1670
A Proposed Model for Infant and Child Oral Health Promotion in India
Published 2013-01-01“…The model could be implemented to evaluate the oral health status of children, knowledge and knowledge gain of the community health workers, and acceptability and sustainability of the preventive programs (fluoride varnish and preschool and school tooth brushing) pragmatically.…”
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1671
Analysis of Influence of Stiffness Variation on Uniform Load Characteristics of the Planetary Gear Trains
Published 2024-02-01“…The uniform load characteristics of the transmission system is not sensitive to the change of the flexible supporting stiffness of the sun gear, but it is more sensitive to the change of the flexible supporting stiffness of the planetary gear, and the uniform load coefficient has obvious changes. The effect of gear tooth meshing stiffness changes on the uniform load characteristics of the transmission system is independent, simultaneously reducing the internal and external meshing stiffness has a more obvious uniform load effect than reducing the meshing stiffness alone.…”
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1672
Genomic data suggest parallel dental vestigialization within the xenarthran radiation
Published 2023-08-01“…Next, whereas dental regression appears to have halted in sloths, presumably a critical event that ultimately permitted adaptation to an herbivorous lifestyle, anteaters continued losing genes on the path towards complete tooth loss. Echoes of this event are recorded in the genomes of all living anteaters, being marked by a 2-bp deletion in a gene critical for dentinogenesis (DSPP) and a putative shared 1-bp insertion in a gene linked to tooth retention (ODAPH). …”
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1673
Essential Attributes of Clear Aligner Therapy in terms of Appliance Configuration, Hygiene, and Pain Levels during the Pandemic: A Brief Review
Published 2020-01-01“…Fixed orthodontic appliances by nature are not always self-limiting, which, if left unmonitored over a long period may cause undesirable side effects, pain, and discomfort. The undesired tooth movements that may occur with arch wire-guided mechanics in addition to problems with cut wires or removed brackets may be minimized with the use of aligners. …”
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1674
Variations in Aggressive and Indolent Behaviour of Central Dentinogenic Ghost Cell Tumor
Published 2020-01-01“…The first case describes an aggressive DGCT, associated with impacted tooth and odontome which showed recurrence into a large solid tumor within a year. …”
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1675
Histological Evaluation of Internal Dental Resorption: An Analysis of a Cohort of 50 Cases
Published 2024-01-01“…These histological insights provide a deeper understanding of the pathological processes involved in internal dental resorption and underscore the necessity for early detection and intervention to mitigate tooth loss and preserve dental health.…”
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1676
ANALYSIS OF INFLUENCE OF CYCLOID GEAR HOLE STRUCTURE ON THE VIBRATION CHARACTERISTIC OF CYCLOIDAL GEAR (MT)
Published 2023-01-01“…The meshing angle of each tooth pair and the comprehensive meshing stiffness were calculated. …”
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1677
Simulation Study on the Effect of Pre-cooling Quenching Process on Deformation of Half Axle Gear After Heat Treatment
Published 2018-01-01“…As for the half axle gear which studied,the taper of the deformation of the overall shaft hole after heat treatment can be reduced by 12. 9%,and the taper between the tooth end and the shaft end can be reduced by 12. 5%. …”
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1678
Plexiform Unicystic Ameloblastoma: A Rare Variant of Ameloblastoma
Published 2014-01-01“…These tumors show high incidence of cortical perforation, tooth resorption and a high rate of recurrence after simple enucleation. …”
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1679
Periosteal Pedicle Flap Harvested during Vestibular Extension for Root Coverage
Published 2015-01-01“…The present case report describes a single-stage technique for vestibular extension and root coverage in a single tooth by using the Periosteal Pedicle Flap (PPF). …”
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1680
Research on Non-inertial System Effect of Dynamic Stress of Planetary Gear System under Basic Motion
Published 2022-03-01“…Combining the modified Heywood formula and Hertz formula,a calculation model of the tooth root bending dynamic stress and contact dynamic stress of the planetary gear transmission system under the basic motion non-inertial system is constructed,and the stress non-inertial system coefficients describing the influence of the additional effects on the dynamic stress under the basic motion are defined. …”
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