OBJECTIVE A previous pilot series described a hybrid mastoidectomy technique, canal wall window (CWW), which substituted for the canal wall down (CWD) procedure and involved slitting the posterior canal wall. The current, larger series compares the results of the CWW procedure with conventional surgical techniques. STUDY DESIGN Retrospective analysis of 78 pediatric ears. SETTING Academic t...

This paper uses SketchUp and OpenStudio to design optimize the multiperformance parameters of near-zero energy consumption residential building scheme stage. By establishing a basic model, performance such as insulation thickness, typical outer window, window-to-wall ratio, their contribution rates within threshold range are optimized for conservation; simulate determined parameter combination ...

Energy modeling is a crucial tool for taking decisions related to the building stock. To achieve this, urban models need information ensure good-quality simulations. Automated image analysis has shown potential in many fields but lacked appear works aiming improve energy analysis. Thus, objective of this study provide methodology extraction window-to-wall ratio from façade images. The proposed ...

The aim of this paper is to optimize the building shape parameters and envelope parameters influencing the rural building energy consumption in cold winter and hot summer climate. Several typical models are established and optimized by integrated TRNSYS and GenOpt. Single-objective optimization has provided guidance to the multi-dimensional optimization. Building shape and envelope parameters a...

abstract many studies have been conducted on the characteristics of hydraulic jump over gradually expanding cross sections, but comparatively few have been carried out on basins with convergent wall. in the present research, the hydraulic jump characteristic of the stilling basin with convergent wall has been investigated. the main objective of this research is evaluation of conjugate depths ra...

With the high density point clouds obtained with terrestrial laser scanning, detailed building facade structures, such as windows, can be recovered. There are usually only a few laser points available for windows, because window frames are small parts on walls, and window glass reflects no laser beam. Insufficient raw laser information makes it very difficult to recover reliable geometry of a w...

large capacity cylindrical tanks are used to store a variety of liquids. their satisfactoryperformance during earthquake is crucial for modern facilities. in present paper, the behavior of cylindricalconcrete tanks under harmonic excitation is studied using the finite element method. liquid sloshing, liquidviscosity and wall flexibility are considered and additionally excitation frequency, liqu...