Интерактивная обработка изображений, получаемых посредством лазерного монитора в режиме реального времени

В ходе исследования необходимо было создать устройство позиционирования объекта в системе лазерного монитора. В процессе исследования проводилось исследование алгоритмов определения резкости изображения. На основе выбранного метода был разработан алгоритм автоматической фокусировки изображения. Также был разработан алгоритм системы слежения за объектом на основе алгоритма нормированной кросскорреляции. В результате исследования удалось снизить искажения, вносимые оптической системой лазерного монитора и активной оптической средой, и организовать систему автоматической фокусировки изображения и систему слежения, позволяющую отслеживать перемещение объекта наблюдения с точностью до 1 пикселя.In the study, it was necessary to create a device object positioning system for the laser monitor. The study surveyed algorithms determine the sharpness of the image. Based on the selected method algorithm for automatic focus of the image was developed. There was also designeded a tracking system for the object of the algorithm based on normalized cross-correlation method. The study was able to reduce the distortions introduced by the optical system of the laser and monitor the active optical medium, and to organize a system of auto focus and image tracking system to track the movement of the object of observation up to 1 pixel

Конверсия попутных нефтяных газов С3-С4 в жидкие углеводороды на модифицированных цеолитных катализаторах

Исследованы влияние модифицирования цеолита типа MFI и активированные плазмой, на кислотные и каталитические свойства в конверсии пропан-бутановой фракции в арены.The effect of modification of MFI zeolite activated by plasma on acid and catalytic properties in the conversion of the propane-butane fraction into arenes was investigated

In vivo phase imaging of human epiphyseal cartilage at 7 T

PURPOSE: To assess the potential clinical utility of in vivo susceptibility-weighted imaging and quantitative susceptibility mapping of growth cartilage in the juvenile human knee at 7 T. METHODS: High-resolution gradient-echo images of the knees of six healthy children and adolescents aged 6 to 15 were acquired with a 28-channel coil at 7 T. Phase images from the coils were combined using a short echo-time reference scan method (COMPOSER). RESULTS: Veins oriented perpendicular to the static B0field appeared doubled in susceptibility-weighted imaging, but not quantitative susceptibility mapping. Veins and layers in the cartilage were visible in all children up to the age of 13. CONCLUSION: Phase imaging using susceptibility-weighted imaging and quantitative susceptibility mapping allows the in vivo visualization of veins and layers in human growth cartilage

Исследование влияния технологических параметров процесса селективного лазерного сплавления на макроструктуру образцов из титановых сплавов

Установлены режимы селективного лазерного сплавления, которые обеспечивают наименьшее количество макродефектов в образцах размером 5х5 мм, полученных сплавлением порошка титана ВТ1-0 и композиционного порошка TiC-Al. Установленные режимы селективного лазерного сплавления используются в рамках выполнения НИР "Исследование влияния технологических параметров процесса селективного лазерного сплавления на макроструктуру образцов из титановых сплавов", выполняемой в Научно-производственной лаборатории "Современные производственные технологии" НИ ТПУ.Modes of selective laser fusion are established, which provide the smallest number of macrodefects in samples 5 ? 5 mm in size obtained by fusion of VT1-0 titanium powder and TiC-Al composite powder. The established regimes of selective laser fusion are used as part of the R&D "Study of the influence of technological parameters of the selective laser fusion process on the macrostructure of samples made of titanium alloys", performed at the Scientific and Production Laboratory "Modern Production Technologies" of TPU

Stage-I osteochondritis dissecans versus normal variants of ossification in the knee in children

Background: Juvenile osteochondritis dissecans (OCD) has a better prognosis than the adult type. Objective : We postulated that the excellent prognosis of juvenile OCD could be explained, at least in part, by the erroneous diagnosis of some developmental variants of ossification as stage-I OCD. Materials and methods : Knee MRIs of 38 children, ages 7.5–17.7 years (mean and median age 13 years), were retrospectively reviewed to look for features that might separate normal variants of ossification from stage-I OCD. These included age, gender, site, configuration of the lesion, residual cartilaginous model and presence of edema. Results : Twenty-three patients (32 condyles) had ossification defects with intact articular cartilage suggestive of stage-I lesions. No stage-II lesions were seen in the posterior femoral condyles. Accessory ossification centers were seen in 11/16 posterior condyles and 3/16 central condyles. Spiculation of existing ossification was seen in 12/16 posterior condylar lesions and 1/16 central condyles. There was a predominance of accessory ossifications and spiculations in the patients with 10% or greater residual cartilaginous model. No edema signal greater than diaphyseal red-marrow signal was seen in the posterior condyles. Clinical follow-up ranged from 0.5 to 38 months, with clinical improvement in 22 out of 23 patients. Conclusion : Inclusion of normal variants in the stage-I OCD category might explain, in part, the marked difference in published outcome between the juvenile and adult forms of OCD. Ossification defects in the posterior femoral condyles with intact overlying articular cartilage, accessory ossification centers, spiculation, residual cartilaginous model, and lack of bone-marrow edema are features of developmental variants rather than OCD.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46719/1/247_2005_Article_1507.pd

The benefits of strength training on musculoskeletal system health: practical applications for interdisciplinary care

Global health organizations have provided recommendations regarding exercise for the general population. Strength training has been included in several position statements due to its multi-systemic benefits. In this narrative review, we examine the available literature, first explaining how specific mechanical loading is converted into positive cellular responses. Secondly, benefits related to specific musculoskeletal tissues are discussed, with practical applications and training programmes clearly outlined for both common musculoskeletal disorders and primary prevention strategies