The thermal conductivity of graphene and ultrathin graphite (thickness from 1 to ∼20 layers) encased within silicon dioxide was measured using a heat spreader method. The thermal conductivity increases with the number of graphene layers, approaching the in-plane thermal conductivity of bulk graphite for the thickest samples, while showing suppression below 160 W/m-K at room temperature for sing...

background handling of upper lateral cartilages (ulcs) is of prime importance in rhinoplasty. this study presents the experiences among 2500 cases of rhinoplasty in the past 10 years for managing of ulcs to minimize unwilling results of the shape and functional problems of the nose. methods all cases of rhinoplasties were done by the same surgeon from 2002 to 2013. management of ulcs changed fr...

For comminuted shaft fracture of clavicle, the operative goal, aside from sound bone healing without complications of direct reduction, is maintenance of the original length in order to maintain the normal biomechanics of adjacent joint. Our bridge plating technique utilizing distraction through a lumbar spreader was expected to be effective for restoring clavicular length with soft tissue pres...

The use of centrifugal spreaders for application of granular fertilizers raises concern about application accuracy. These spreaders enable to distribute almost uniform deposits with regularly spaced parallel tramlines but lead over and under fertilizer application when distances separating the successive tractor trajectories are not constant or if paths are not parallel between them. The aim of...

Methods 5 fresh cadaveric specimens were connected to a dynamic gait simulator. I-scan #6900 sensors® were calibrated and surgically inserted into the subtalar (ST), naviculocuneiform (NC) calcaneocuboid (CC), and talonavicular (TN) joints using a joint spreader. Each foot was walked multiple trials across a force platform for three conditions (normal, flatfoot, flatfoot-orthotic). The flatfoot...

INTRODUCTION: Correction of the hump nose entails more than just simple elimination of the dorsal hump. Recent trend is toward conservative reduction of the hump and appropriate adjustment of the radix height. East Asians often present with pseudo-hump, due to underprojected radix or tip, which accentuates the height of the hump. This study introduces our method of pseudohump correction and ach...

Medline The Cottle maneuver is a classic technique used to diagnose an internal nasal valve disorder. While the patient inspires quietly, the cheek is pulled laterally, thus simulating widening the cross-sectional area of the internal nasal valve. If the patient notes an appreciable improvement in breathing with this maneuver, the Cottle sign is positive. This generally has been interpreted as ...

INTRODUCTION: The concept of freestyle propeller flaps provides a versatile opportunity for wound closure at any part of the body with minimal donor site morbidity. As experience and familiarity with microsurgical procedures has increased interest in identifying-harvesting perforator flaps originating from known major vessels has become more common. The “freestyle” concept developed by Wei and ...

In the search for opportunities to decrease operational costs in iron ore mining, waste disposal by conveyor belt has been considered as an alternative. In this work, this form of waste dump is investigated by means of the construction of a test pile and the assessment of geotechnical characteristics such as shear strength and in situ densities. Results were compared with two other dumps built ...

Copper-Graphite laminate material design has been analysed, and this proposed composite has the ability to enhance heat dispersing more efficiently compared to the traditional high thermal conductivity with weight associated copper and high thermal resistance graphite. A finite element analysis (FEA) is carried out using the material (Cu – Gr) properties to investigate this proof. The design, t...