The unilateral external fixator has become a quick and easy application for fracture stabilization of the extremities; main value evaluation mechanical stability is stiffness. stiffness property affects local biomechanical environment fractured bone.In this study, theoretical model with changing Young's modulus callus established by using Castigliano's theory, investigating compression stiffness, torsional bending fixator-bone system during healing process. effects pin deviation angle on...

Diamond has the highest thermal conductivity of any natural material. It can be used to integrate with GaN dissipate heat from AlGaN/GaN high electron mobility transistor (HEMT) channels. Much past work investigated properties GaN-on-diamond devices, especially boundary resistance between diamond and (TBReff,Dia/GaN). However, effect SiNx interlayer structure on devices is less investigated. In this work, we explore role different interfaces in contributing layers, specifically using 100 nm...

Unilateral external fixators are widely used in orthopedics to stabilize fractured bones and treat limb deformities. One of the main problems is that it difficult detect healing status. In addition, whether load transfer progress between fixator bone model same under axial, torsional, bending loads has not been studied.Therefore purpose this study was process a by measuring strains on fixator-bone system during four states using experimental finite element methods. method, 20 strain gauges...

Steel cable plays an important role in modern infrastructure due to its special characteristics. Because most of structure load is transformed the tension stayed structures, it very monitor tension. Being a slender element, Fiber Grating Strain Sensor sensitive axial strain and regarded as prospective way The paper reviews series problems FBG when embedded into cable, introduced five different sensors. Principle, characteristics, application states these sensor has been discussed details....

The proposed desensitized encapsulation structure solved the problem that more than 5500με test range for FBG sensor. single steel wire with sensor tension in laboratory before and after fatigue experiment showed rationality reliability of structure. A scheme using to fabricate smart cable which was compatible production process parallel wires designed. specimen verified sensors high survival rate design good long-term precision experiment. Also actual application tested by one bridge during...

Dry block furnaces are widely used in on-site measurement and calibration of food, petrochemical, pharmaceutical, semiconductor, other manufacturing enterprises. The accuracy dry-block furnace temperature has always been a problem for calibrator. research on the mainly focuses stability measurement, method, distribution uniformity so on. Therefore, axial is an important factor affecting its accuracy. In this study, (Const 660 produced China) selected as object to study relationship between...

Dry block furnaces are widely used in on-site measurement and calibration of food, petrochemical, pharmaceutical, semiconductor, other manufacturing enterprises for their advantages such as pollution-free, simple operation, easy to carry, fast rise fall, wide usable temperature range. The accuracy dry-block furnace is always a problem calibrator. stability an important factor affecting its accuracy. In conventional dry calibrators, the drift internal reference thermometer gradients...

BACKGROUND:Unilateral external fixators are widely used in orthopedics to stabilize fractured bones and the treatment of limb deformities. The main value for evaluation mechanical stability fixator is stiffness. stiffness an important factor as it will i nfluence biomechanical environment which regenerating tissues exposed. OBJECTIVE:The objective this work was monitor transmission stress change displacement generated fixator-bone system under three loading conditions during healing process....

Thermocouple thermometers are widely used in laboratories and industry, the ice-water mixture is usually as cold end compensation for thermocouple thermometer measurement. However, has disadvantages, such complex manufacturing process, short use time, unstable internal temperature field. The zero-temperature thermostat can replace traditional ice water to provide a stable field environment. there no suitable measurement method that evaluate zero-degree meet requirements of thermometer....

Infrared temperature measurement technology has been widely used in industry and agriculture to predict maintenance of electrical equipments due its advantages noncontact, harm-free, quick measurement. However, many factors cause errors infrared thermal measurements, especially the existence angle view causes serious error. Therefore, this study, based on experimental data, one model related error are established by multiple regression method. Meanwhile, optimal values measuring temperature,...

Unilateral external fixator is commonly used to stabilize initial fractured bone for polytraumatised patients, which simple and effective method. The stiffness property of the has a great influence on local biomechanical environment tissue. In order investigate rigidity characteristics novel with serrated structure through comparing Sarafix in experimental measurement. Polyacetal tubes simulating human tibia were fixed fixator. Axial stiffness, torsional bending measured universal material...

Infrared temperature measurement has attracted great attention because of these unique advantages for low cost and expanded applications, especially with the development computer technology semiconductor technology, performance parameters manufacturing level infrared thermal imager have been obviously improved. However, in practice, tested object measured by cannot be guaranteed to real object. Therefore, this study provides a new experimental method improving accuracy under condition...

Abstract With the wide application and rapid development of infrared temperature measurement, which has attracted spread interest in field non-contact measurement due to its unique advantages. Measurement real measured object is an important task many disciplines, especially critical difficult for measurement. However, accuracy thermography technique reach a satisfactory level, cannot meet requirements high accuracy, emissivity be determined outdoor environments. It very meaningful...

Infrared temperature measurement has a wide range and more applications, due to infrared does not need contact with the object under test. However, accuracy of is difficult reach satisfactory degree, which limits development application method. This study explores how atmospheric transmittance affects thermal imager. Based on composition atmosphere, major reason affecting have been found. Meanwhile, according influence water vapor carbon dioxide absorption, aerosol, molecule other suspended...

<p>The working status of bridge cables is one important indications which inflect security state. The cable force an parameter to be monitored. There are different kinds external strain measurement ways adopted monitor the force. However, can not always identified in real time. If sensor integrated with during fabrication process, smart monitored at any time process service. A system Fiber Bragg Grating (FBG) sensors was proposed. To protect FBG against damage cable, were firstly...

We investigate the temperature dependence of CrossTalk (CT) for PANDA Polarization maintaining fiber (PMF). The test ranges from −55 to 85 °C, and tested was loose wound. mismatch in thermal expansion coefficient between boron-doped parts core can be varied by controlling doping concentration stress regions. whole CT variation optimized PMF would reduced <2.3dB. This characteristic is important real application PMFs temperature-insensitive interferometers, sensors, optical gyroscopes.

Fracture correction is important orthopedics operation and can be performed by unilateral external fixator. Due to pin deviations being inevitable during the operation, searching impacts of deviation on fracture fixator joint adjustment are important. This study puts forward evaluation index with sensitivity analysis for investigating impact three orientation position correction. Meanwhile, based a clinical case from 28-year-old female, influence joints was analyzed inverse kinematic method....

Unilateral external fixators are widely used in orthopedics to stabilize fractured bones and the treatment of limb deformities. Vivo mechanical environment inside around fixator may influence healing bone. Due existence pin deviation affect biomechanical callus fracture gap. Finite element analysis was investigating stress deformation fixator-bone system under axial load, torsional load bending comparing properties two structures: one has angle, other no angle. These results reveal that...

Unilateral external fixators are commonly used to stabilize the fractured tibia bone. Compared static fixation, axial dynamization has been shown in previous studies promote callus formation, improve bone healing at fracture sites, and non-axial movements not conductive remodeling. In later stage of correction, patients can bear a certain load realize walking other movements. Gait motion is active dynamic motion. However, it still unknown how displacement change site during gait movement So...