Technological foundations of reducing the number of stages in the forming operations of drawing, reducing and bulging

Деталі, які отримані обтиском

Developed new technological foundations of obtaining the hollow articles by forming cold sheet stamping processes, including drawing, reducing and bulging. The novelty lies in the development of new methods of drawing, reducing and bulging, to create and use a special profiles deforming tool. Using this deforming tool provides a significant reduction of friction influence in the forming of articles, reduce deformation force and increase the degree of deformation in one stage.

Research and development of frequency selective structures millimeter wave based on thin multimode dielectric resonators

Equations for the of the resonant frequency and Q-factor calculation for frequency-selective devices based on thin dielectric resonators are found. Calculation error is less than 1 ... 2% for frequency and 5 ... 7% for Q-factor These equations can be the base for automatisation of calculations during the design of the devices on the base of thin dielectric resonators.

Technological features of prognostication of properties of fusions and structure of metal of foundings for work in extreme terms

Performed a comprehensive study of the casting, mechanical and special properties of heat-resistant and wear-resistant iron-based alloys in a wide range of chromium concentration, manganese, aluminum, carbon, titanium, and so on, are designed latest heat-resistant and wear-resistant alloys, depending on the specific operating conditions of the cast parts in extreme conditions . It created a database covering more than 600 brands of iron-based alloys, ferro alloys and all existing brands of steel and iron scrap.

The creation of nanophotonic systems for printed smart food packaging

Nanophotonic systems and printing technologies are developed to manufacture smart food packaging, which enhance shelf life of foods without the need for additional processing, and indicate the current state of a packaged product, i.e. its suitability for consuption, by changing the optical properties of a printed image (color, luminescence intensity).

Scientific and technological basis of receipt of modern technologies and riggin of complex resource saving deformation of axisymmetrical wares

We solve important scientific and technical challenge associated with creating the concept of complex (simultaneous) actions on the workpiece through the formation of localized deformation and the formation of the center hole with minimal post processing of removing the metal layer, and providing enhanced mechanical properties through modification material structure; development of new energy efficient technologies for parts of the central cavity of the solid components; the creation of methods of technological calculations; energy-power research and computer modeling developed processes an

Development and implementation of new diagnostic tools biomechanical strength and reliability of the "bone - joint - implant" considering damages of biological tissues

Manufactured laboratory samples of new rod external fixation devices (REFD) human bone fragments with the joint design made of biocompatible composite materials. Experimental testing and calculation and theoretical study of REFD rod joints of new design for osteosynthesis damaged human limbs. The developed osteosynthesis designs samples are tested in medical institutions of Ukraine for quality treatment of damaged bone fractures.

Mathematical modeling and diagnostics of human condition, based on the analysis of pathogenic zones infrared radiation

As a result of comprehensive research on the intersection of two disciplines - opto-electronic engineering and medicine there was developed new computational methods of infrared evaluation of the biological object in a pathological area of the body, taking into account the temperature regulation of processes, which allows to determine the temperature distribution in the muscle tissue and the depth of the location of the areas of hypothermia.

Electrochemical device for the determination of sulfur dioxide in the air and process gas media

Developed gas diffusion catalytically active 3D-electrodes based on valve metal having a two-level three-dimensional structure comprising a microporous composite electrocatalytic coating applied to a discontinuous basis, and a porous regular of the electrode structure, which may include both electrocatalytically active material, and a mixture of the latter with other disperse materials.

Obtaining of energy carriers from biodiesel waste, industrial waste water, microalgae Chlorella vulgaris and waste of its cultivation

Scientific and technological bases of renewable raw materials conversion in biohydrogen and biomethane were grounded; conditions of increasing of renewable raw materials conversion rate and energy production in the enzymatic separation process into two stages were defined. Rational technological parameters stages were determined. This allows forming highly effective microorganisms associations that are able to maximize the rate of different raw materials conversion and halve its duration. Rational technological parameters of biohydrogen (biomethane) obtaining were defined.

Development and application of new environmentally friendly technologies for producing of nanocellulose, products of chemical and pharmaceutical industries from non-woody plant materials

The influence of the basic technological parameters of traditional and organosolvent methods of cooking cellulose from stalks and fibers of non-wood plant material for its quality were investigated. The effect of alkaline extraction in quality microcrystalline cellulose from hemp fibers was determinated. The process of obtaining organosolvent hemp pulp was investigated. Depending quality parameters of microcrystalline cellulose to major technological factors was established. The technology of obtaining microcrystalline cellulose from hemp and flax fibers was developed.