239 research outputs found
ΠΠ½ΡΠ΅ΡΠ°ΠΊΡΠΈΠ²Π½Π°Ρ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠ° ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΠΉ, ΠΏΠΎΠ»ΡΡΠ°Π΅ΠΌΡΡ ΠΏΠΎΡΡΠ΅Π΄ΡΡΠ²ΠΎΠΌ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΌΠΎΠ½ΠΈΡΠΎΡΠ° Π² ΡΠ΅ΠΆΠΈΠΌΠ΅ ΡΠ΅Π°Π»ΡΠ½ΠΎΠ³ΠΎ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ
Π Ρ
ΠΎΠ΄Π΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΠΎ Π±ΡΠ»ΠΎ ΡΠΎΠ·Π΄Π°ΡΡ ΡΡΡΡΠΎΠΉΡΡΠ²ΠΎ ΠΏΠΎΠ·ΠΈΡΠΈΠΎΠ½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΎΠ±ΡΠ΅ΠΊΡΠ° Π² ΡΠΈΡΡΠ΅ΠΌΠ΅ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΌΠΎΠ½ΠΈΡΠΎΡΠ°.
Π ΠΏΡΠΎΡΠ΅ΡΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π°Π»Π³ΠΎΡΠΈΡΠΌΠΎΠ² ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠ΅Π·ΠΊΠΎΡΡΠΈ ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΡ. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π΅ Π²ΡΠ±ΡΠ°Π½Π½ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π° Π±ΡΠ» ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½ Π°Π»Π³ΠΎΡΠΈΡΠΌ Π°Π²ΡΠΎΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΎΠΊΡΡΠΈΡΠΎΠ²ΠΊΠΈ ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΡ. Π’Π°ΠΊΠΆΠ΅ Π±ΡΠ» ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½ Π°Π»Π³ΠΎΡΠΈΡΠΌ ΡΠΈΡΡΠ΅ΠΌΡ ΡΠ»Π΅ΠΆΠ΅Π½ΠΈΡ Π·Π° ΠΎΠ±ΡΠ΅ΠΊΡΠΎΠΌ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π°Π»Π³ΠΎΡΠΈΡΠΌΠ° Π½ΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ ΠΊΡΠΎΡΡΠΊΠΎΡΡΠ΅Π»ΡΡΠΈΠΈ. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ΄Π°Π»ΠΎΡΡ ΡΠ½ΠΈΠ·ΠΈΡΡ ΠΈΡΠΊΠ°ΠΆΠ΅Π½ΠΈΡ, Π²Π½ΠΎΡΠΈΠΌΡΠ΅ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΠΎΠΉ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΠΌΠΎΠ½ΠΈΡΠΎΡΠ° ΠΈ Π°ΠΊΡΠΈΠ²Π½ΠΎΠΉ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΠ΅Π΄ΠΎΠΉ, ΠΈ ΠΎΡΠ³Π°Π½ΠΈΠ·ΠΎΠ²Π°ΡΡ ΡΠΈΡΡΠ΅ΠΌΡ Π°Π²ΡΠΎΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΎΠΊΡΡΠΈΡΠΎΠ²ΠΊΠΈ ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΡ ΠΈ ΡΠΈΡΡΠ΅ΠΌΡ ΡΠ»Π΅ΠΆΠ΅Π½ΠΈΡ, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡΡΡ ΠΎΡΡΠ»Π΅ΠΆΠΈΠ²Π°ΡΡ ΠΏΠ΅ΡΠ΅ΠΌΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΎΠ±ΡΠ΅ΠΊΡΠ° Π½Π°Π±Π»ΡΠ΄Π΅Π½ΠΈΡ Ρ ΡΠΎΡΠ½ΠΎΡΡΡΡ Π΄ΠΎ 1 ΠΏΠΈΠΊΡΠ΅Π»Ρ.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
ΠΠΎΠ½Π²Π΅ΡΡΠΈΡ ΠΏΠΎΠΏΡΡΠ½ΡΡ Π½Π΅ΡΡΡΠ½ΡΡ Π³Π°Π·ΠΎΠ² Π‘3-Π‘4 Π² ΠΆΠΈΠ΄ΠΊΠΈΠ΅ ΡΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Ρ Π½Π° ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΡΡ ΡΠ΅ΠΎΠ»ΠΈΡΠ½ΡΡ ΠΊΠ°ΡΠ°Π»ΠΈΠ·Π°ΡΠΎΡΠ°Ρ
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠ΅ΠΎΠ»ΠΈΡΠ° ΡΠΈΠΏΠ° MFI ΠΈ Π°ΠΊΡΠΈΠ²ΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ ΠΏΠ»Π°Π·ΠΌΠΎΠΉ, Π½Π° ΠΊΠΈΡΠ»ΠΎΡΠ½ΡΠ΅ ΠΈ ΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π° Π² ΠΊΠΎΠ½Π²Π΅ΡΡΠΈΠΈ ΠΏΡΠΎΠΏΠ°Π½-Π±ΡΡΠ°Π½ΠΎΠ²ΠΎΠΉ ΡΡΠ°ΠΊΡΠΈΠΈ Π² Π°ΡΠ΅Π½Ρ.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
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΡΠ΅Ρ Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ Π½Π° ΠΌΠ°ΠΊΡΠΎΡΡΡΡΠΊΡΡΡΡ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΠΈΠ· ΡΠΈΡΠ°Π½ΠΎΠ²ΡΡ ΡΠΏΠ»Π°Π²ΠΎΠ²
Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ ΡΠ΅ΠΆΠΈΠΌΡ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡ Π½Π°ΠΈΠΌΠ΅Π½ΡΡΠ΅Π΅ ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²ΠΎ ΠΌΠ°ΠΊΡΠΎΠ΄Π΅ΡΠ΅ΠΊΡΠΎΠ² Π² ΠΎΠ±ΡΠ°Π·ΡΠ°Ρ
ΡΠ°Π·ΠΌΠ΅ΡΠΎΠΌ 5Ρ
5 ΠΌΠΌ, ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΡ
ΡΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΠΏΠΎΡΠΎΡΠΊΠ° ΡΠΈΡΠ°Π½Π° ΠΠ’1-0 ΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΏΠΎΡΠΎΡΠΊΠ° TiC-Al. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π½ΡΠ΅ ΡΠ΅ΠΆΠΈΠΌΡ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡΡΡΡ Π² ΡΠ°ΠΌΠΊΠ°Ρ
Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΡ ΠΠΠ "ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΠΏΡΠΎΡΠ΅ΡΡΠ° ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΠ³ΠΎ Π»Π°Π·Π΅ΡΠ½ΠΎΠ³ΠΎ ΡΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ Π½Π° ΠΌΠ°ΠΊΡΠΎΡΡΡΡΠΊΡΡΡΡ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ² ΠΈΠ· ΡΠΈΡΠ°Π½ΠΎΠ²ΡΡ
ΡΠΏΠ»Π°Π²ΠΎΠ²", Π²ΡΠΏΠΎΠ»Π½ΡΠ΅ΠΌΠΎΠΉ Π² ΠΠ°ΡΡΠ½ΠΎ-ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π΅Π½Π½ΠΎΠΉ Π»Π°Π±ΠΎΡΠ°ΡΠΎΡΠΈΠΈ "Π‘ΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΡΠ΅ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ΡΡΠ²Π΅Π½Π½ΡΠ΅ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ" ΠΠ Π’ΠΠ£.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 7.5β17.7Β years (mean and median age 13Β 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 38Β 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
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