INFLUENCE OF CHANGE OF POSITION OF FEMUR PROXIMAL SEGMENT ELEMENTS ON DIAGNOSTICS AND TREATMENT TACTICS OF HIP JOINT PATHOLOGY

The aim. of the research was to create diagnostic method for determination of attitude position of elements of femur proximal segment for understanding of development of hip joint pathology and determination of surgical tactics of treatment. The method of precise determination of angle interrelations between the elements of hip joint with use of multispiral computed tomograms. Offered method of diagnostics of estimation of position of elements of femur proximal segment is a necessary way of research of understanding for development of degenerative changes in hip joint and. also for determination of tactics and. method of treatment

The effect of the lamella pitch in the transverse layer on the deformability and stress distribution in a three-layer CLT panel modeled as a composite plate

Cross-laminated timber (CLT panel) and its structures are interesting for engineers and scientists due to its low installation weight, ease of fabrication, high strength and durability. However, many aspects remain under-researched. In particular, the issue of changes in deformability and bearing capacity of slabs under different variations of geometrical parameters in the layers of the structure had not been studied. We studied the effect of the pitch of the transverse layer in a three-layer CLT panel on the deformation and distribution of the resulting normal stresses. The model was a composite orthotropic plate. Because of the lack of a unified methodology for calculating layered materials with orthotropic properties in the layers, the studies were carried out by means of the SCAD+ computational complex using the finite element method. The article obtained, systematized and clearly showed the deflection and stress dependences of varying lamella pitch in the transverse layer of a three-layer CLT panel. The results provide a better understanding of the dependence of deformability and stress distributions on the variation of board pitch in the transverse layer of the slab. In the future, this will allow us to explore opportunities to optimize the design of the CLT panel in order to reduce its weight, cost, reduce resource consumption while maintaining the required characteristics

Effect of transverse and longitudinal layer thickness on deformations and stresses in a three-layer CLT panel modeled as a composite plate

The study examines the effect of the transverse and longitudinal layers thickness of a three-layer CLT panel on the deformations and distribution of the resulting tensile and compressive normal stresses in the layers. Due to the current lack of a unified methodology for the calculation of multilayer materials with orthotropic properties in layers at present, we carried out the study with the SCAD+ computing complex using the finite element method. The studied model was a composite orthotropic plate. The authors obtained, systematized and clearly showed the dependences of the values of the maximum deflection and normal stresses on the thickness variation of transverse and longitudinal lamellae in a three-layer CLT panel under different boundary conditions. As a result of the study, we found that the greatest influence on the deflection and normal stresses along the span was caused by the longitudinal slab layers. The results provide a better insight into the relationship between deformability and stress distributions and the variation of transverse and longitudinal layer thicknesses. The obtained patterns can be used in the design of building structures using CLT panel

Reconstruction of bone segment of the glenoid at chronic recurrent anterior shoulder instability using porous titanium nickelide

A method of the surgical treatment of posttraumatic recurrent shoulder instability with bony defects using porous NiTiis presented. We operated 5 patients using this method. Recurrences of dislocation after surgical treatment have not been recorded. The method is an alternative to Latarjet procedure and iliac crest bone grafting. We use computerized tomography data in the preoperative making of NiTi graft. The graft is sawed from billet having a cylindrical shape about 1 cm thick. Than by using the drill we form two screw holes. A prepared graft is subsequently installed in the area of the glenoid bone defect. The advantages of this method are accurate reconstruction of the bony defect, minimal risk of recurrences, absence of resorption, reduction of procedure time

ESM-SnowMIP: Assessing snow models and quantifying snow-related climate feedbacks

This paper describes ESM-SnowMIP, an international coordinated modelling effort to evaluate current snow schemes, including snow schemes that are included in Earth system models, in a wide variety of settings against local and global observations. The project aims to identify crucial processes and characteristics that need to be improved in snow models in the context of local- and global-scale modelling. A further objective of ESM-SnowMIP is to better quantify snow-related feedbacks in the Earth system. Although it is not part of the sixth phase of the Coupled Model Intercomparison Project (CMIP6), ESM-SnowMIP is tightly linked to the CMIP6-endorsed Land Surface, Snow and Soil Moisture Model Intercomparison (LS3MIP)