We used classification and regression tree analysis to determine the primary variables associated with the occurrence of cavity trees and the hierarchical structure among those variables. We applied that information to develop logistic models predicting cavity tree probability as a function of diameter, species group, and decay class. Inventories of cavity abundance in old-growth hardwood fores...

A 980 nm bottom-emitting vertical-cavity surface-emitting laser (VCSEL) with a p-contact diameter is reported to achieve high power and good beam quality. A numerical simulation is conducted on the current spreading in a VCSEL with oxidation between the active region and the p-type distributed Bragg reflector. It is found that, for a particular oxide aperture diameter, somewhat homogeneous curr...

in a prospective survey, 200 cases of operated chronic dacryocystitis were divided into three groups according to the kind of operation, and the respective results are as follows: group i includes 100 cases in whom the lacrimal bone was removed (8mm x 8mm) and a 6mm diameter catheter was used (as a duct between the lacrimal sac and nasal cavity). the recurrence rate within one year was 24 % . g...

Secretory otitis media (SOM) is one of the causes of permanent hearing loss. The key factor in the pathogenesis of the SOM is a chronic under-atmospheric middle ear (ME) pressure, which is assigned mainly to an altered ME gas exchange in combination to an impaired Eustachian tube (ET) function. Recent research pointed to the importance of the mastoid in the ME pressure balance related to ambien...

ABSTRACT In the process of underwater motion, trajectory projectile will be greatly disturbed due to complicated environment and cavitation effect. order study effect ice water mixture on experiments a titanium alloy slender body with truncated conical plat warhead passing through have been performed by using one-stage light gas gun loading system, an overpressure sensor measurement system high...

this paper is a computational study of the behavior of aerodynamics  characteristics of an airfoil with blunt trailing edge and  studies the effects aerodynamic performance caused by modifications made to the trailing edge. blunt trailing edge airfoils are of interest in the engineering of large wind turbine blades because they allow for a strong structure with a high aerodynamic lift to struct...

One of the key issues associated with the understanding of large scale impacts is how the observable complex crater structural features (e.g., central peaks and pits, flat floors, ring shaped ridges and depressions, tratigraphic modifications, and faults) relate to the impactor's parameters (e.g., radius, velocity, and density) and the nonobservable transient crater measures (e.g., depth of pen...

Funda TAŞTEKİN AKSU Dokuz Eylül Üniversitesi Tıp Fakültesi Anatomi Anabilim Dalı 35340 İnciraltı, İZMIR Tel: (232) 4124361 e-posta: [email protected] SUMMARY Acetabulum is a hemispherical cavity on the medial part of the hip joint. Anterior acetabular ridge’s morphology is clinically important during total hip arthroplasty. Additionally the depth and diameter of the acetabulum are impor...

Due to the interest in Alnus glutinosa as plantation species has increasesed Latvia during last years, a structural unit “LVM Sēklas un stādi” of State Stock Company “Latvijas Valsts Meži” (Latvia’s Forests) offers local market bare root seedlings with an advanced system obtained from seeds growed planting such selected cutovers and for land reforestation theorectically will allow owner increas...