Results 91 to 100 of about 6,355,244 (249)

基于蒙特卡罗法的行星齿轮机构稳健性分析

open access: yesJixie chuandong, 2008
A math model on planar gear mechanism is built.The minimum volume of planar gear mechanism is chosen as optimization objective,and teeth number,face width,module of sun gear and planetary gear number are chosen as design variable,and tooth contact stress,
张蕾, 董恩国, 申焱华
doaj  

Operational optimization of water distribution networks using hybrid algorithms

open access: yes, 2010
Operation of water system distribution involves utilisation of pumps, tanks, and storages for the purpose of providing good quality water to costumers at a reasonable flow and pressure. Optimal operation of a water distribution system aims
Ngandu, B.
core  

Developmental Morphometry of the Paranasal Sinuses in Subjects Aged 1–25 Years: A Computed Tomography Study

open access: yesClinical Anatomy, EarlyView.
ABSTRACT The present study aimed to evaluate the developmental morphometry of the paranasal sinuses using computed tomography (CT) in subjects aged 1–25 years and to characterize age‐related changes in sinus dimensions, volume, and surface area throughout childhood, adolescence, and young adulthood.
Ceyda Şevval Çetin   +4 more
wiley   +1 more source

Structural optimization based on internal energy distribution

open access: yes, 2013
Structural optimization is a valuable tool to improve the performance of products, but it is in general expensive to perform due to the required extensive number of function evaluations.
Oman, Michael,, Nilsson, Larsgunnar,
core   +1 more source

Long‐term outcomes of microsurgical interdental papilla reconstruction: 13‐year and 18‐year case follow‐ups

open access: yesClinical Advances in Periodontics, EarlyView.
Abstract Background Loss of the interdental papilla compromises esthetics, speech, and hygiene, significantly affecting quality of life and psychological well‐being. Reconstruction has long been considered unpredictable, particularly in Cairo RT3 cases with advanced interproximal bone loss.
Katsuhiko Akiyama
wiley   +1 more source

Tooth autotransplantation following extraction of periodontally hopeless teeth in a periodontitis patient

open access: yesClinical Advances in Periodontics, EarlyView.
Abstract Background The aim of the study is to report clinical outcomes of autogenous tooth transplantation (ATT) of fully developed third molars following the extraction of periodontally hopeless teeth as a part of the treatment of a stage III, grade C, molar‐incisor pattern (MIP) periodontitis case.
Alessandro Rizzi   +3 more
wiley   +1 more source

Subperiosteal tunnel assisted graft (STAG) technique: Report of two cases

open access: yesClinical Advances in Periodontics, EarlyView.
Abstract Background This case report describes the clinical application of the subperiosteal tunnel‐assisted graft (STAG) technique, a novel approach for peri‐implant phenotype modification and keratinized tissue augmentation. Although free gingival grafts remain the gold standard for increasing keratinized tissue width, their effectiveness may be ...
Seiko Min
wiley   +1 more source

Mechanical properties and rock-breaking effects of ridge-shaped PDC teeth

open access: yesJin'gangshi yu moliao moju gongcheng
Objectives: With the depletion of easily recoverable oil reservoirs, the focus of oil and gas exploration and development in China has shifted to "two deeps and non-conventional" oil and gas fields.
Zhitao XIE   +4 more
doaj   +3 more sources

Intelligent Detection For Food Impaction With Interpretable Fusion Network

open access: yesInternational Dental Journal
Aim or purpose: To develop an intelligent acoustic detection method for food impaction with an interpretable time-frequency domain dual-feature fusion model and to verify the effectiveness of the method internally and externally.
Hongyan Wang   +4 more
doaj   +1 more source

Non‐Invasive Estimation of Systemic Drug Exposure Using Exhaled Breath Metabolomics in Humans: A Translational Proof‐of‐Concept Study

open access: yesClinical Pharmacology &Therapeutics, EarlyView.
Accurate assessment of systemic drug exposure in humans remains challenging, as conventional approaches rely on intermittent blood sampling and laboratory‐based assays that are invasive and provide limited temporal resolution. Exhaled breath contains volatile and semi‐volatile compounds arising from drug metabolism and downstream biological processes ...
Kai Fricke   +12 more
wiley   +1 more source

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