-
401
RESEARCH ON AXIAL MODIFICATION OF CROWD REDUCER GEARS OF LARGE MINING ELECTRIC EXCAVATOR
Published 2019-01-01“…Using the thin slice gear model,statistical average load of excavator mining process is taken as the reference load of modification,the minimum contact stress of gears at the excavator mining position withmaximum statisticalcrowd force is regarded as the objective,the slope modification of the two stage pinion(driving wheel) of the crowd reducer is carried out.Further, no edge load at tooth surface in each mining location is regarded as the objective,the crown modification of the two stage pinion of the crowd reducer is carried out.In the process of excavator mining,compare with pinion without modification,the maximum stress(including contact stress of tooth surface and bending stress of tooth root)of thepinionwith modification decreases significantly,and the edge contact condition of tooth surface is obviously improved.After modification,when the gear is subjected to the statistical maximum load of excavator mining process,the stress value of the gearis still less than the allowable stress.Simulation results show that,axial modification of crowd reducer gears of large mining electric excavator has positive significance for improving carrying ability and contact condition of gears.…”
Get full text
Article -
402
Restoration of Endodontically Treated Molars Using All Ceramic Endocrowns
Published 2013-01-01“…Endocrowns represent a conservative and esthetic restorative alternative to full coverage crowns. The preparation consists of a circular equigingival butt-joint margin and central retention cavity into the entire pulp chamber constructing both the crown and the core as a single unit. …”
Get full text
Article -
403
-
404
Acute Truncal Lymphedema Secondary to Axillary Metastatic Melanoma Presenting Like Cellulitis
Published 2017-01-01Get full text
Article -
405
Clinical Evaluation of Solitary Median Maxillary Central Incisor Syndrome
Published 2019-01-01“…The SMMCI tooth differs from the normal central incisor in that the crown form is symmetric and it develops and erupts precisely in the midline of the maxillary dental arch in both primary and permanent dentitions. …”
Get full text
Article -
406
IN VITRO EXPLORATION OF BIOCOMPATIBILITY AND SURFACE PROPERTIES OF TWO DIFFERENT MATERIALS: HYBRID CERAMIC AND HYBRID RESIN
Published 2024-12-01“…Objectives: This study evaluates two dental materials—modified resin with glass fiber (Trinia) and hybrid ceramic (Vita Enamic)—for implant crown restoration, focusing on biocompatibility. …”
Get full text
Article -
407
Correction of Peri-Implant Soft Tissue Fenestration With Bony Dehiscence Associated With Intrabony Defect: A 2-Year Case Report
Published 2024-01-01“…A 51-year-old female was referred to the Periodontics and Oral Medicine Clinic with labial soft tissue fenestration at the maxillary left canine implant-supported crown. The patient complained of discomfort and malodor at the implant site. …”
Get full text
Article -
408
Study on Temperature Field Evolution and Frozen Wall Closure Judgment Criteria of Inclined Shaft under Inclined Holes Freezing Condition
Published 2022-01-01“…Affected by the arched arrangement of frozen pipes, the freezing speed in the position of arch crown and arch baseline is slower than the position of wall corner and base plate. …”
Get full text
Article -
409
Determine the Importance of Effective Factors in site selection Rainwater harvesting in the Tajerre Kashan Basin
Published 2024-09-01“…For this purpose, layers such as crown cover, litter, rock and stones, soil, curve number, rainfall, slope and depth of field as independent variable and infiltration were considered as the dependent variable. …”
Get full text
Article -
410
The structure of egg batches, number of eggs and egg hatching rates of pine processionary moth Thaumetopoea pityocampa (Denis & Schiffermüller, 1775) / Thaumetopoea wilkinsoni Tams...
Published 2018-12-01“…The average number of eggs collected in lower, middle and upper parts of tree crowns were 185,8, 167,0 and 201,7 (mean=184,8); and the rate of hatching was 67,0%, 64,7% and 69,3% (mean=66,9%), respectively. …”
Get full text
Article -
411
Contact ion-pair SN2 reactions activated by Lewis Base Phase transfer catalysts
Published 2025-01-01“…This study provides crucial evidences for the reactions of CIP metal salts facilitated by Lewis base phase transfer catalysts (PTCs) [2,2,2]-cryptand, 18-crown-6, pentaethylene glycols (pentaEGs) and BINOL–based pentaEG. …”
Get full text
Article -
412
Determination of embryotoxic and teratogenic effects of flunixin meglumine given early stage in ovo
Get full text
Article -
413
Fractal-Shaped Metamaterials and Applications to Enhanced-Performance Devices Exhibiting High Selectivity
Published 2012-01-01“…By constructing the low-impedance sections as hybrid prefractal shape and crown square, both the SITs and LPF obtained additional bandwidth enhancement and good matching. …”
Get full text
Article -
414
The study of connotation dožam Narges( The sad narcissus) in the Prologue of Rostam and Esfandiar
Published 2023-11-01“…Some of these above-mentioned constituent components and elements of the text are considered as lexical and syntactical layers (linguistic field), image: simile, metaphor, and allegory (rhetorical field), and drama (dramatic field) that are engaging in creating implemented meaning.Although the connotation is observed in different layers in Ferdowsi's poetry, insisting on the vocabulary and semantic layers this study has investigated the connotative meaning of Narges dožam (the sad narcissus) in the introduction of the Rostam and Esfandiar story finally had demonstrated this of eyes, crown, and drunkeness has three implicit meanings and the obtained results illustrate the consistency of the narrative context.…”
Get full text
Article -
415
Developmental Trends of Black Spruce Fibre Attributes in Maturing Plantations
Published 2016-01-01“…The transitional shifts in temporal correlation patterns occurring at the time of approximate crown closure where suggestive of intrinsic differences in juvenile and mature wood formation processes. …”
Get full text
Article -
416
Is Pulp Inflammation a Prerequisite for Pulp Healing and Regeneration?
Published 2015-01-01“…They slide along the root and migrate toward the crown. Due to the high alkalinity of the capping agent, pulp cells display mild inflammation, proliferate, and increase in number and size and initiate mineralization. …”
Get full text
Article -
417
Consecutive Case Series of Healed Single-Molar Sites Immediately Restored with Wide-Diameter Implants: A 1-Year Evaluation
Published 2016-01-01“…To evaluate outcomes of wide-diameter (6 mm) implants immediately provisionalized with cement-retained single crowns in posterior molar sites. Materials and Methods. …”
Get full text
Article -
418
A Theoretical Calculation Method of the Unsupported Span for the Shallow Tunnel in the Soft Stratum
Published 2020-01-01“…It was pointed out that the unsupported span is not determined by the arch crown stability or the tunnel face stability alone, but by both. …”
Get full text
Article -
419
Full Mouth Reconstruction of a Bruxer with Severely Worn Dentition: A Clinical Report
Published 2015-01-01“…After endodontic therapy, clinical crown lengthening was performed. Two short implants were inserted in the posterior mandible. …”
Get full text
Article -
420
Surgical Orthodontic Treatment of an Impacted Canine in the Presence of Dens Invaginatus and Follicular Cyst
Published 2014-01-01“…“Dens invaginatus” is a dental anomaly which originates from the invagination of the ameloblastic epithelium into the lingual surface of the dental crown during the odontogenesis. It can cause early pulpal necrosis, abscesses, retention or dislocation of contiguous elements, cysts, and internal resorptions. …”
Get full text
Article