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Currently, there is no clear guidance on the management of patients with concomitant chronic diseases of the veins (CVD), such as varicose and postthrombotic disease of the lower limbs, with endoprosthetics of the knee or hip joint. To reduce the risk of thromboembolic complications in patients of this group, the authors developed individual algorithms of reference.

A number of patients with problems of major joints increases every year. These patients need the replacement arthroplasty. The rate of thrombotic complications rises in given category of patients simultaneously with the increase of the number of performed operations. There weren’t well-defined instructions of management of the patients with associated chronic vein diseases at the preparation period for arthroplasty performance in spite of the presence of clinical recommendations for prevention of thromboembolic complications. The authors analyzed the experience of management of such patients and presented these data for doctors from polyclinic and hospitals in order to apply the common treatment strategy.

The purpose - to evaluate the short- and medium-term results of treatment patients with knee tumors using modular endoprostheses GMRS (Stryker) and OSS (Biomet). Matherial and methods. The article presents the experience of use in clinical practice in patients with malignant tumors of the knee modular endoprosthesis (Global Modular Replacement System (Stryker) and Oncology Salvage System (Biomet). Also the results of analysis of these implant systems in primary total knee replacement in 63 patients. Results. Overall 5-year survival of patients of the study group was 87.3%, 5-year disease-free survival - 92.1%. Average follow-up was 4 years. Immediate and medium-term good and satisfactory results were achieved orthopedic in 51 (80.9%) patients; complications were noted in 5 (8.8%) cases.

A setup for studying the physicochemical properties of superheavy elements in experiments involving gas transport systems is described. The setup is composed of four detecting modules with semiconductor detectors; systems of data acquisition, storage, and processing; a cooling system for semiconductor detectors; and a vacuum system. In each detecting module, there are two oppositely located four-strip semiconductor detectors. The detecting system is capable of detecting with a high efficiency α particles and spontaneous fission fragments produced in decays of superheavy elements.

In the first part of this paper (which is a modified version of Sabel'nikov and Gorokhovski [1, 2]), the IEM/LMSE micro-mixing model is further developed to account for the entire range of mixing f...

Long-term goals of the Research Ramjet Program (RRP) led at Onera are to provide a better understanding of the reacting flows inside r amjet combustion chambers and develop a predictive numerical tool, capable of characterizin g the performances of such combustors. A part of this program focuses on the Lean-Blow Out (LBO) phenomenon and aims at improving the understanding of the physical processes involved in the combustor blowoff and the calculations to predict this limit. The pre sent paper is mainly concerned with the computational component of that study, and specifically with the assessment of a Partially Stirred Reactor (PaSR) turbulent combustion model recently integrated in the Onera inhouse Computational Fluid Dynamic (CFD) code CEDRE. This combustion model, based on the Eddy Dissipation Concept (EDC) closure of Magnussen, is designed to describe the Turbulence ‐ Chemistry Interaction (TCI). Calculations have been performed to simulate a nominal operating point, and predict the LBO limit of the Research Ramjet combustion chamber. Significant results have been highlighted: 1) the PaSR combustion model yields results in good agreement with experimental data fo r the nominal operating point, and 2) the predicted LBO limit using the PaSR closure is fully satisfactory compared to the measurements.