PL
 |
EN
Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl
Ograniczanie wyników
Czasopisma help
  1. 27 International Letters of Chemistry, Physics and Astronomy
  2. 19 World Scientific News
  3. 14 Advances in Materials Science
  4. 10 Autobusy : technika, eksploatacja, systemy transportowe
  5. 10 PAK
Więcej...
Lata help
  1. 8 2018
  2. 10 2017
  3. 9 2016
  4. 10 2015
  5. 9 2014
Więcej...
Autorzy help
  1. 96 Hryniewicz T.
  2. 57 Rokosz K.
  3. 25 Pluta Z.
  4. 11 Dudek Ł.
  5. 9 Pietrzak K.
Więcej...
Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 96

Liczba wyników na stronie
first rewind previous Strona / 5 next fast forward last
Wyniki wyszukiwania
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 5 next fast forward last
1
Content available Effect of high-temperature heating on chemical changes in M7C3 carbides of AISI D2 tool steel
100%
Nykiel T. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2014
|
tom Vol. 17, iss. 3
258--271
EN
The paper presents the study results obtained on 16H12MF/NC11LV/D2 tool steel. The main purpose of the study was to establish the chemical composition of the coarse primary M7C3 carbides occurring in that steel after a standard soft annealing. The effect of high-temperature annealing in the air atmosphere was investigated. The study was limited to the decarburized layer, on the distance of about 0.4 mm from the surface, of hardened steel after annealing and austenitizing at 1150 ºC in the air atmosphere for the periods of 30 and 90 minutes. It was found that the coarse primary M7C3 carbides of the annealed D2 tool steel differ significantly as to the contents of Cr, Mo, and V, and in the most degree to the contents of chromium and molybdenum. The average concentration of chromium rises successively with the growth of austenitizing time. On the other hand, the concentrations of molybdenum and vanadium are lower after 30 minutes of austenitizing than their concentrations in the similar carbides of the annealed steel. Prolongation of the austenitizing time up to 90 minutes results in the increase of molybdenum and vanadium contents in the coarse carbides. It was found that austenitizing of AISI D2 tool steel at the temperature of 1150 ºC in the air atmosphere leads to precipitation of the second phase, brighter in the BSE_Z pictures, in relation to the matrix of carbides, with the amount and magnitude being higher with the annealing time.
2
Content available Quantum Nature of Vehicle Motion
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2013
|
tom Vol. 8, iss. 1
37--48
EN
The paper presents a new adequate look on the character of motion of any material body, such as moving vehicle. It has been proved, that motion of material bodies has a quantum character. Due to this their consecutive energetic states are obtained by a jump. The phenomenon of quantum in the reference to vehicle kinetics has been derived by indicating its place on the background of characteristics of whole mechanics. The length of vehicle way in particular phases of its motion is that source characteristics the derivatives of which form the development of motion description of a material solid/body. It has been indicated that the quantum nature of body motion does not depend on its magnitude. Thus, as has been noticed, there is an analogy between the macro-body motion and electron motion which change its energy also by jump, by getting from one orbit (energetic level) to another.
3
Content available Novel Modeling of the Phenomenon of Air-Cooled Solid
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2013
|
tom Vol. 1
1-16
EN
The paper turns the attention to the thermal problems of the solid cooling in air. The physical aspect of mathematic approach has been underlined. The analysis and critical evaluation of Newton's Law concerning the solid air-cooling have been performed. The cognitive path leading to the solution is presented with the result being the body temperature dependence on time of cooling down in the air. Then the course of solution concerning the result of the adequate dependence of temperature of the cooled body on time has been presented. In the study, the stress is put on constant magnitudes chich characterize the susceptibility of solid to the cooling in the air. In the end, the synthetic formulation of all functional characteristics of the thermal phenomenon discussed in the paper, have been presented.
4
Content available Thermodynamic Characteristics of Solid
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2013
|
tom Vol. 2
60-71
EN
The paper is to present the developed thermodynamic characteristics of a solid. The existent description of dependence of temperature on the proper entropy (thermal capacitance) was used as the beginning point of the considerations. A critical evaluation of the picture of that dependence was a consecutive link of the considerations. Furthermore, an adequate description of the discussed heat phenomenon, taking into account the detailed characteristics of the entropy growth characteristics, has been presented. This characteristics indicates a clear quantum character of the studied reality, reflected by the potentials, proper and gained, respectively. These magnitudes are the measures of the proper and gained specific energies of this thermodynamic factor. The dependence of temperature on the specific energy has been described to formulate a formula on the heat work. At the end the dependence between the specific heat and the entropy constant is derived. In conclusion, a quantum nature of macroscopic reality has been noticed together with the definition of the heat energy notion. The necessity of noticing the description of any other reality in this scale has been indicated.
5
Content available A developed version of the Hooke’s law
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2013
|
tom Vol. 2
49-59
EN
The paper contains a proper approach to the Hooke's law as well as its developed version. A system approach was applied covering all the process of material elongation. An adequate interpretation of this law is given indicating that it touches only changes of magnitudes which describe the considered reality. The plot of elongation curve has been presented by separating a series of proper zones connected with the phenomena occurring in this process. A developed version of the Hooke's law, taking into account the considered reality concerning the material stress both its own as well as caused by external loading, is the conclusion of these considerations.
6
Content available Mass Moment Determination Using Compound Pendulum
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2013
|
tom Vol. 3
85-100
EN
This work has been performed to verify the existent knowledge on determination of the mass moment. For the experiment, a compound pendulum was used. The motivation to undertake these studies were experimental results indicating a big discrepancy in mass moments between the values coming from calculations using the definition formula and these obtained from the experiment. In relation to the axial moment the relative error equals 23.6%, whereas regarding the polar moment the error reached 56.4%. Considering the reason of that discrepancy we could find the existent theory not to be adequate. The theory is then considered in view of verifying first the mathematical pendulum and next the physical/ compound pendulum theory. The consideration has been focused on the description of accelerated motion cycle of both pendulums as it was enough to solve the problem. A source differential equation, which serves to solve any quantum phenomena, was used in the study. Then the course of creation of detailed characteristics of the phase of mathematical pendulum accelerated motion is presented as the basis to derive formula on the mass moment of a compound pendulum. At the end this new adequate theory was verified showing the relative error to be less than one per cent.
7
Content available Kinetics of Flexibly Fixed Operating Element of a Rotating Device
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2013
|
tom Vol. 3
67-84
EN
The work covers the adequate kinetics of the flexibly fixed working element of a rotating device. First the literature background of the problem has been presented, turning the attention on such systems where the phenomenon of centrifugal displacement of a body due to the rotating of the system occurs. Then the general characteristics of the complex motion of working element has been described. The core of the work is the description of the variable component motions, with the starting point of the description being the source differential equation, presenting this type of dependence of the path length on time. The accelerated angular motion and retarded radial motion have been separated, describing these component motions as the function of time. Based on these detailed descriptions, the trajectory equation of working element, the derivatives and further kinetic magnitudes, have been derived. In the conclusion, the cognitive and practical qualities of the presented solutions of the title problem, have been accented.
8
Content available remote Cr/Fe Ratio by Xps Spectra of Magnetoelectropolished Aisi 316L SS Using Linear, Shirley and Tougaard Methods of Background Subtraction
100%
Hryniewicz T. , Rokosz K.
Advances in Materials Science
|
2013
|
tom Vol. 13, nr 1(35)
11--20
EN
In the paper, the analyses of Fe2p3/2 and chromium Cr2p3/2 XPS spectra with fitting by symmetrical and asymmetrical line shapes as well as using Linear, Shirley and Tougaard Method of Background Subtraction are presented. The calculations are performed on AISI 316L SS biomaterial after magnetoelectropolishing MEP operation. It was found, the chromium-to-iron ratio after magnetoelectropolishing MEP for other analyses could be in the range from 2.2 to 6.2 depending on the line shapes as well as type of backgrounds used to XPS spectra fitting. The most important for comparison the surface layers concerning the Cr/Fe ratio is to use the same line shape and backgrounds for all analyses.
9
Content available On the Groundless Use of Mathematics Concerning the d’Alembert’s Rule
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2013
|
tom Vol. 7, iss. 2
85--101
EN
The paper discusses the groundless use of mathematics. This question has been explained mainly based on example of the so called d`Alembert’s rule which unfortunately still functions in science none the less it has been based on a fiction, contrary to the truth cognition as the fundamental purpose of science. That pejorative feature of the mentioned paradigm is marked very clearly in the paper to evaluate it negatively as the only one possible note. Next the adequate characteristics of variable body motion has been presented and the description of Atwood device given in view of explaining the essence of a real equilibrium of the system of material bodies where their real inertia is of importance. In conclusion the characteristics of real inertia force being the measure of this inertia is presented. The erroneous up-to-date view concerning the measure of body inertia, assuming mass as the measure of this magnitude enabling free manipulation of the acceleration value, has been revealed. At the end it is stressed that acceleration is always positive in its nature and is existent in each condition of the material reality.
10
Highly improved Nitinol biomaterial devices by magnetoelectropolishing (MEP)
100%
Hryniewicz T. , Rokicki R.
World Scientific News
|
2018
|
tom 106
11
Content available On the wear inspection and endurance recovery of Nitinol endodontic files
100%
Hryniewicz T. , Rokosz K.
Pomiary Automatyka Kontrola
|
2009
|
tom R. 55, nr 4
247-250
EN
The aim of this study was to reveal the effects of operation of endodontic rotary files during a normal use and the possibilities for their endurance recovery. The effect of magnetoelectropolishing on the basic surface, and mechanical properties of Nitinol endodontic rotary files has been also studied. The investigation covered surface interferometry measurements, and SEM studies referred to two groups of endodontic instruments: ready-to-use and/or as-received (AR) tools, and magnetoelectropolished (MEP) instruments, meaning treated by electropolishing in a magnetic field. Overall, magnetoelectropolished (MEP) instruments indicated significantly better surface characteristics than those as-received (AR). Our earlier studies have revealed several better and improved surface characteristics of Nitinol samples treated with MEP in comparison with those electropolished under standard EP conditions and as-received (AR) ones. Specifically it has been found that magnetoelectropolishing MEP process may improve the surface, corrosion, and fatigue characteristics of Nitinol samples. When viewing the as-received (AR) instruments with SEM, and measuring the instrument treated surface by interferometry, the evidences of milling grooves, cracks, pits, and metal rollover were observed, contrary to the endodontic file surface after magnetoelectropolishing (MEP). The MEP process has improved most of surface characteristics, having beneficial effects in prolonging the fatigue life of samples. The benefits of MEP process are likely to be caused by a reduction in surface irregularities and essential changes in surface film properties.
PL
W pracy ukazano warunki pracy i sposoby zużycia nitinolowych narzędzi endodontycznych oraz możliwości poprawy ich trwałości / jakości. Badania obejmowały SEM i interferometrię narzędzi uszkodzonych w procesie powiększania kanału zębnego, oraz narzędzi po magnetoelektropolerowaniu (MEP). Zużycie narzędzi następuje głównie w wyniku zmęczenia materiału i zależy od ukształtowania kanału zębnego. Wstępne badania wykazują, że proces MEP, poprzez zmiany w warstwie wierzchniej, poprawia mechaniczne właściwości Nitinolu.
12
Content available Adequate Force Characteristics of a Friction System
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2013
|
tom Vol. 8, iss. 1
20--26
EN
In the paper, at first some remarks concerning friction are presented by the definition of the friction itself, as well as its essential force characteristics. An adequate definition of friction is introduced, and moreover a correct its characteristics. Next the statics, dynamics, and kinematics of the friction system is given, forming the force characteristics of this system for each of the mechanical behaviours, taking into account real inertia forces of the body under friction. Three types of coefficients of sliding friction have been separated, namely: coefficient of static friction, dynamic friction, and kinematic friction. Then the comparative analysis of existent and new knowledge on the force characteristics of friction process has been presented. The consideration on how to determine the coefficient of static friction has also been carried out. Reflections on the possibilities to form further force characteristics of the friction process are presented to develop this work with some final remarks directing the attention on the conditions of development of science on friction.
13
Content available Problems of water supply to seaside localities of Poland
100%
Żuchowicki A. W. , Hryniewicz T.
Measurement Automation Monitoring
|
2015
|
tom Vol. 61, No. 8
416--419
EN
Problems of water supply to seaside/resort localities are considered in the paper. The main task is to supply water of proper quality and amount at seasonal fluctuations in the demand. The paper focuses on the operation of water supply systems in the following localities of Central Pomerania: Mielno, Unieście, Mielenko, Sarbinowo, and Chłopy. They are main summer resorts of the region with typical fluctuation in population during the annual cycles affecting the amount of water supply. The atmospheric conditions, mainly temperature, generally affect the magnitude of water demand. The water-pipe system under consideration forms a very interesting technical solution for supplying both administration-industrial agglomeration, that is the municipal system, and localities lying in the seaside strip characteristic. The water intake is located in Mostowo which lies 19 km away from the main city centre of Koszalin.
14
Plasma Electrolytic Oxidation as a modern method to form porous coatings enriched in phosphorus and copper on biomaterials
100%
Rokosz K. , Hryniewicz T.
World Scientific News
|
2016
|
tom 35
15
Content available Adequate theory of oscillator: a prelude to verification of classical mechanics. Part 3
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2012
|
tom Vol. 3
11-23
EN
In the paper, the adequate theory of oscillator is presented, being a sort of prelude to verification of the classical theory of mechanics. The developed theory is based on a properly understood notion of energy, quantum value changes of its determined measures (potentials), as well as of such chan ges types of sites of full energetic states which presents the essence of the true principle of the energy conservation. In the first part of the paper the principle of energy conservation was considered. Then the energetic aspects of the oscillator motion, with an exemplary real system motion, were presented in the second Part. This part of the paper is devoted to the kinetics of a body in harmonic motion and verification of the adequate theory of oscillator. At the end, the determination of the gravity acceleration by means of mathematical pendulum is performed to confirm the presented findings.
16
Content available On the fictional and real lost gravitation force
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2012
|
tom Vol. 4
8-16
EN
The paper covers a critical approach to the natural reality study which is the method of scientific cognition. The existent so called d`Alembert's rule is the link of reality on which the specific attention is focused. The critics is directed to the fictional inertia force covered in the mentioned rule. The necessity for its elimination from the reality description has been presented. Instead, it is proved that a real inertia force occurs. A proper exemplification material has been delivered with two examples of force equilibrium of the system. One of them refers to a rigid system being both under stable and unstable states. The second one covers also these two states but it is referred to a mass-flexible system. Finally, the discussed solution of the problem has been explained on the example of mathematic pendulum and a mass-string system.
17
Content available Analytical dependence of substance solubility measure on temperature
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2012
|
tom Vol. 5
20-34
EN
The work covers an adequate analytical dependence of solubility measure of the chemical substances on the water/aqueous solution temperature. The solubility was defined and new, more readable solubility measure was introduced; the coefficient of solubility has been proposed instead. Then the source differential equation was introduced as the basis for the derivation of a final analytical form of dependence of the solubility coefficient on temperature. That characteristics has been developed by determining the dependence of the solubility coefficient variability intensity on temperature. An example of the use of presented theory has been delivered by referring it to the phenomenon of dissolution of AgNO3 silver nitrate in the aqueous environment. In the summary, quite a developed use of the source differential equation has been underlined with some more examples revealed.
18
Content available Adequate theory of oscillator : a prelude to verification of classical mechanics. Part 4
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2012
|
tom Vol. 4
1-7
EN
In the paper, the adequate theory of oscillator is presented, being a sort of prelude to verification of the classical theory of mechanics. The developed theory is based on a properly understood notion of energy, quantum value changes of its determined measures (potentials), as well as of such chan ges types of sites of full energetic states which presents the essence of the true principle of the energy conservation. In the first part of the paper the principle of energy conservation was considered. Then the energetic aspects of the oscillator motion, with an exemplary real system motion was presented. The third part was a development of kinetics of a body in the harmonic motion and verification of the adequate theory of the oscillator. At the end, this Part 4 is devoted to the determination of the gravity acceleration by means of the mathematical pendulum to confirm the previously presented findings.
19
Content available Adequate theory of oscillator: a prelude to verification of classical mechanics. Part 2
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2012
|
tom Vol. 3
1-10
EN
In the paper, the adequate theory of oscillator is presented, being a sort of prelude to verification of the classical theory of mechanics. In the first part of the paper the principle of energy conservation was considered. This second part of the paper is to present the energetic aspects of oscillator motion. Here also an exemplary real system corresponding with the existent differential equation of oscillator is given. They are to develop the kinetics of a body in the harmonic motion, to be presented in the next Part of the work.
20
Content available Quantum theory of gravitation
100%
Pluta Z. , Hryniewicz T.
International Letters of Chemistry, Physics and Astronomy
|
2012
|
tom Vol. 5
35-45
EN
In the paper, the outline of a new quantum theory of gravitation is presented. The energetic states of a material body, stable and unstable, are described. Characteristics of a body motion in a gravitation-inertia space-time has been given. It has been proved that all the time both gravitation and inertia are co-existent, independent on the position of a moving object. This is the reason of that twolink name of the space-time. A thorough in-depth analysis of the problem made it possible to state that so called the law of common gravity is a hyperbolic approximation of a proper course of inertia force. Therefore the mentioned courses have only two common points. One of them, the initial point belongs also to the course line of the gravity force, constant on the whole length of space-time. This theory is adequate in character and thus generally does not corresponds with the existent classical theory of gravitation.
first rewind previous Strona / 5 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.