A Mechanical Model for Wool and Other Keratin Fibers
Features of the two-phase model of the structure of keratin fibers. Estimation of the importance of critical and equilibrium stresses in the fibril, transfer of its stress to the matrix. Study of a possible connection between microfibrils and matrix.
Подобные документы
Transit of natural gas along the territory of Ukraine to the countries of the Western and Central Europe. Main resons of the loss of pipeline efficiency. Necessity for studying of the operation modes of the gas transport system during underloading.
статья, добавлен 01.12.2017The study of the formation mechanism of flavonoid complex with aluminum ions. On the basis of the negative low Gibbs free energy values it found that chelation is a natural phenomenon. Determination of the antioxidant capacity of flavonoids stevia leaf.
статья, добавлен 30.01.2016Dynamic designer as a way to save time and cost of getting new products to market, and improving old ones without a huge investment in equipment. Using parametric solid models for to develop the form of the parts. Mechanical desktop to build prototypes.
презентация, добавлен 21.02.2014Biodegradable poly-3-hydroxybutyrate [P(3HB)] and birch sawdust - a material for the preparation of powder mixtures for molds in the production of granules and tablets. The prospect of a composite obtained on this basis for the building industry.
статья, добавлен 17.04.2022Mechanical tests of with various hydrogen concentrations before and after the hydride reorientation tests were performed. Hydrogen pickup measurements in zirconium alloys: relation to oxidation kinetics. Hydride microstructure in the dummy claddings.
статья, добавлен 30.05.2021Результаты расчетов методом CALculation of PHAse Diagrams в сравнении с экспериментальными данными, полученными методом дифференциального термического анализа. Опытные составы с добавками гафния в исследованном диапазоне легирования и составом без него.
статья, добавлен 29.09.2016A lightweight, environmentally friendly nanocomposite based on thermoplastic potato starch plasticized with glycerin is described. Adding cellulose nanofibers, improving the barrier properties of films due to the tortuous path for penetrating molecules.
статья, добавлен 14.04.2022Cylinder shaped parts – one of the mostly used in printing presses. A new technology of strengthening and recovery of details based on vibration roll burnishing is offered in the article. Experimental work and scientific conclusions are described.
статья, добавлен 29.07.2016The mass variable is considered the first and most important basis for motion events. Mass is what the body contains of matter, and mass exists in three states in the universe, and it is unique. From a mechanical point of view it is considered a variable.
статья, добавлен 12.05.2024Technological solutions that allow us to solve the problem of premature wear of the printing machines. A new technology of strengthening and recovery of details based on vibration roll burnishing is offered. Experimental work and scientific conclusions.
статья, добавлен 29.07.2016Analysis a lot of problems which constrain the transfer of diesel engines on "ecological" fuel and showing opportunities of manufacturing this fuel on Ukrainian enterprises. Evaluation of innovation taking in consideration environmental protection.
статья, добавлен 13.09.2016Estimation of energy release in mills of various types to understand the thermodynamic aspect of processes during mechanoactivation treatment. Modeling the motion of the balls of a mill and evaluating the generation of energy in the ball system.
статья, добавлен 07.08.2020The comparative analysis of the microstructure, phase and chemical composition of the experimental alloys of the Fe-W type with the standardized grade ferrotungsten. The feasibility of using Fe-W for the manufacture high tungsten materials based on iron.
статья, добавлен 30.01.2016Analysis of the main causes of destruction of adhesive joints. Structural and technological stress concentrators, because of which cracks develop during operation. General characteristics of the resistance of adhesive bonding to failure at all stages.
статья, добавлен 30.04.2018Comparative analysis of the effect of chemical compounds on the process of forming an electric arc and the conditions for its combustion.Metal transfer in the interelectrode gap under experimental conditions. Specific power of electric arc discharge.
статья, добавлен 29.09.2016Proposal and implementation of a new methodology for calculating the bending finned tubes for heat exchange systems. Getting high-quality bends with minimum radius of bending pipes bimetallic and monometallic. The use of technology in the helical rolling.
статья, добавлен 24.02.2016The flexural and compressive strength of mortar by partial replacement of cement with Nano-ZnO particles has been studied. The results showed that the flexural and compressive strength of the cement mortars with ZnO were higher than pure cement mortar.
статья, добавлен 12.06.2018Consideration an alternative, in relation to the widely used "differential" one, "integrated" approach to solving the dynamics problems. Determining the natural frequencies of fluctuations case of the free surface liquid in containers of various shapes.
статья, добавлен 29.11.2016The traditional irrigation method, based on simple open canal systems, is extremely ineffective for managing critical and limited water resources. Conduct a qualitative assessment of irrigation water losses due to evaporation and system inefficiencies.
статья, добавлен 03.10.2021Investigation of physical and mechanical properties of the cement using of barium-containing clinker and gypsum stone. Effect of additives of barium-containing sulfateferrite clinker gypsum stone. Longer hardening and limits and compressive strength.
статья, добавлен 23.02.2016The system of rest is energy-saving, with power supply from alternative energy sources intended for complex recovery of an organism in house conditions. Determine the effectiveness of panel modules on the level of stress. Application panel "Ananta 2016".
статья, добавлен 19.12.2017Розробка плану впровадження системи аналізу небезпечних чинників та критичних точок контролю на молочноконсервному комбінаті з урахуванням принципів комбінування молочно-рослинної сировини. Аналіз виробничих ризиків та заходів щодо їх виникнення.
статья, добавлен 27.12.2016Algorithm for determination of transfer function models for transient processes from noisy data with continued fraction approximations is proposed. Presented method allows to solve the stability problem of low-order continued fraction approximations.
статья, добавлен 26.06.2016The history of iron and Damascus steels through the eyes of ancient blacksmiths. Observation of color changes during heating and estimating of hardness by scratch tests, to have determined some key parts of the present-day iron-carbon phase diagram.
статья, добавлен 09.09.2012Reduce costs and increase durability of threaded connections. The relationship between the thermal treatment and the strength of the threaded connection. Compare the minimum tightening hermetic threaded connections three types of anaerobic adhesives.
статья, добавлен 28.09.2016