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Fine tuning of dwelling time in friction stir welding for preventing material overheating, weld tensile strength increase and weld nugget size decrease
(VINCA Institute of Nuclear Sciences, 2016)
After successful welding, destructive testing into test samples from Al 2024-T351 friction stir butt welds showed that tensile strength of the weld improve along the joint line, while dimensions of the weld nugget decrease. ...
Rapid pyrolysis of Serbian soft brown coals
(VINCA Institute of Nuclear Sciences, 2009)
Soft brown coals of the open coal fields of Kolubara and Kostolac are the main domestic energy sources of Serbia. This paper presents the results of investigations on rapid devolatilization of these two coals which have ...
Temperature dependent effective friction coefficient estimation in friction stir welding with the bobbin tool
(VINCA Institute of Nuclear Sciences, 2016)
The friction coefficient in many friction stir welding researches is generally used as an effective, constant value without concern on the adaptable and changeable nature of the friction during welding sequence. This is ...
Effective Temperature Based Algorithm for Achieving Constant Quality Resistance Seam Weld
(Belgrade : Vinča Institute of Nuclear Sciences, 2021)
The resistance seam welding is a welding technique that is often used for the creation of the leak-tight welds. It is a technique where the weld is created as a set
of overlapping weld nuggets between the cylindrical ...
Chemical and thermodynamic properties of Bombyx mori (domestic silk moth): Empirical formula, driving force, and biosynthesis, catabolism and metabolism reactions
(Society of Thermal Engineers of Serbia, 2023)
Biothermodynamics is a discipline which has developed intensely during the last 50 years. Thermodynamic properties have been reported for humans, animals, plants and microorganisms. However, this paper reports for the first ...
Chemical and thermodynamic properties of Bombyx mori (domestic silk moth): Empirical formula, driving force, and biosynthesis, catabolism and metabolism reactions
(Society of Thermal Engineers of Serbia, 2023)
Biothermodynamics is a discipline which has developed intensely during the last 50 years. Thermodynamic properties have been reported for humans, animals, plants and microorganisms. However, this paper reports for the first ...
Laying the ghost of twin paradox
(Society of Thermal Engineers of Serbia, 2009)
Someone's true age is not written in his ID, but in his biomarkers. Aging process is not caused by time passing, but by thermodynamically laws. Entropy, extent of metabolic reaction, and temperature are Lorentz invariant, ...
Equation of state in form which relates mol fraction and molarity of two (or more) component thermodynamic system consisted of ideal gases, and it's applications.
(Society of Thermal Engineers of Serbia, 2010)
Most people would face a problem if there is a need to calculate the mole fraction of a substance A in a gaseous solution (a thermodynamic system containing two or more ideal gases) knowing its molarity at a given temperature ...
Formulas for death and life: Chemical composition and biothermodynamic properties of Monkeypox (MPV, MPXV, HMPXV) and Vaccinia (VACV) viruses
(Society of Thermal Engineers of Serbia, 2022)
Today, the World Health Organization has declared a global health emergency, caused by the Monkeypox outbreak. In the monthly analysis for June, 3500 cases have been reported in 50 countries around the world. In the analysis ...
There are two twin shadows, but Einstein is one!
(Society of Thermal Engineers of Serbia, 2012)
2011 is the international year of chemistry, and it is exactly 100 years past after the P. Langevin promotion of “twin paradox” problem. The hundred year old problem still demands its solution. Twin paradox, established ...