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1

Zarządzanie zasobami ludzkimi – programy praca-życie jako forma inwestycji o zabarwieniu motywacyjnym

Świątek M.

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

|

2018

|

z. 117

633--641

EN

The process of engaging employees in their workplace is perceived to be a foundation of the human resources process. From the point of view of the organization, the mechanism of finding new employees, as well as keeping the existing ones is highly important. Employers start to notice the potential of human forces and learn how to improve their value. One of the most popular form of investing in the employees is the “work-life balance program”. The aim of the article is to present the matter of the programs as a tool of stimulating their influence on both – personal and organizational life of the employees.

PL

U podstaw optymalnego zarządzania siłami roboczymi leży umiejętność angażowania jednostek ludzkich w wykonywaną pracę. Z perspek-tywy zarządzania zasobami ludzkimi priorytetowe znaczenie ma nie tylko pozyskiwanie nowych pracowników, ale przede wszystkim utrzymywanie i zachowanie obecnych. Pracodawcy, dostrzegając w pracowniku potencjał oraz wachlarz potencjalnych korzyści dla organizacji, inwestują w ich wartość. Jedną z najczęściej stosowanych form inwestycji jest wdrażanie programów praca-życie. Celem niniejszego artykułu jest przedstawienie istoty programów „work-life balance” jako narzędzia programującego rozwój oraz ich wpływu na życie zawodowe i pozazawodowe, jednostki.

2

Telepraca jako współczesna forma zatrudnienia pracowników generacji Y – ujęcie syntetyczne

Świątek M.

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

|

2018

|

z. 117

623--632

PL

Współczesne organizacje, na co dzień zakorzenione w warunkach gamy wyzwań XXI wieku, swoją działalność opierają na fundamentach wiedzy, jednocześnie podkreślając znaczenie zasobów informacyjnych tworzących niematerialną wartość przedsiębiorstwa. Wzmożona elastyczność rynku pracy i wzrost jakości sprzętu informatycznego przyczyniły się do zwiększenia poziomu zainteresowania niestandardowymi formami zatrudnienia i popularyzacji idei pracy zdalnej. Celem niniejszego artykułu jest przedstawienie istoty pracy zdalnej jako współczesnej formy zatrudnienia pracowników generacji Y.

EN

The keystones of today’s organizations are information and knowledge, which generates the immaterial source of their values. The increasing elasticity of labor market as well as the improvement of IT technologies led to the growth of modern forms of employments and popularization of telework. The purpose of the article is to present the matter of telework as a current form of employment by the example of generation Y’s workers.

3

Nonlinear vibrations of a slender beam interacting with a periodic viscoelastic subsoil

Świątek M., Jędrysiak J., Domagalski Ł.

Vibrations in Physical Systems

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2018

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Vol. 29

art. no. 2018030

EN

The paper describes nonlinear vibrations of Euler-Bernoulli beams interacting with a periodic viscoelastic foundation. The original model equations with highly oscillating periodic coefficients are transformed using the tolerance modelling technique. Newly delivered equations have constant coefficients and describe macro-dynamics of the beam including the effect of the microstructure size. The main purpose of this paper is to propose an equivalent approximate model describing the nonlinear vibrations of a beam interacting with a periodic viscoelastic subsoil.

4

Linear vibrations of periodic Timoshenko and Rayleigh beams

Świątek M., Jędrysiak J., Domagalski Ł.

Vibrations in Physical Systems

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2018

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Vol. 29

art. no. 2018035

EN

Elastic periodic structures with variable material and geometrical properties exhibit dynamic characteristics that are investigated in this contribution. The paper is devoted to analysis of geometrically linear vibrations of Rayleigh and Timoshenko beams with cross-sections and material properties periodically varying along the longitudinal axis. The period of inhomogeneity is assumed to be sufficiently small when compared to the beam length. Equations of motion in both beam theories under consideration have highly-oscillating coefficients. In order to derive the averaged model equations with constant coefficients for vibrations, the tolerance averaging approach is applied. The method of averaging differential operators with rapidly varying coefficients is applied to obtain averaged governing equations with constant coefficients. An assumed tolerance and indiscernibility relations and the definition of slowly varying function found the applied technique. Numerical results from the tolerance Rayleigh and Timoshenko beam model equations are compared.

5

Żywieniowe i technologiczne uwarunkowania zmniejszania zawartości laktozy w mleku i produktach mlecznych

Świątek M., Bednarski W., Śliwiński M.

Przemysł Spożywczy

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2018

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T. 72, nr 10

26--29

PL

W pracy omówiono znaczenie laktozy w żywieniu. Wskazano na problem hipolaktazji i nietolerancji laktozy, z istotnym wpływem czynników etnicznych i genetycznych. Przedstawiono możliwości diagnostyczne i sposoby leczenia nietolerancji laktozy. Opisano właściwości preparatów β-galaktozydazy oraz aspekty technologiczne pozyskiwania produktów z rozłożoną laktozą. Przedstawiono zalecenia dotyczące diety bezlaktozowej i wskazano na potrzebę zwiększenia asortymentu produktów z obniżoną zawartością laktozy. W pracy wskazano poziomy progowe laktozy w niektórych krajach UE, w odniesieniu do stosowania określeń „bez laktozy” i „niska zawartość laktozy”.

EN

This work discusses the importance of lactose in nutrition. The problem of hypolactasia and lactose intolerance is pointed out, with significant influence of ethnic and genetic factors. Diagnostic possibilities and methods of treatment of lactose intolerance are presented. The properties of β-galactosidase preparations and technological aspects of obtaining products with hydrolised lactose are discussed. Recommendations regarding a lactose-free diet are presented and the need to increase the range of products with reduced lactose content is indicated. This paper indicates the threshold levels of lactose in some EU countries with reference to the use of the terms “lactose-free” and “low-lactose”.

6

The influence of electromagnetic wave originating from WiFi router on water viscosity

Tatoń G., Dziob D., Mielnicka A., Lisowski B., Rok T., Świątek M., Kuterba P., Rokita E.

Przegląd Elektrotechniczny

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2018

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R. 94, nr 12

278--280

EN

The aim of the study was to investigate if microwaves generated by a typical WiFi router influence the viscosity of water, as suggested by some authors. The idea relies on the microscopic observation of magnetic nano-beads motion with and without microwave irradiation. A static magnetic field was applied to force the nano-beds movements in the microscope field of view (FOV). The nano-beds velocities under microwave irradiation were compared to their velocities without the electromagnetic stimulation.

PL

Celem prezentowanej pracy było sprawdzenie, czy mikrofale generowane przez typowy router WiFi wpływają na lepkość wody, jak sugerują niektórzy autorzy. Pomysł bazuje na obserwacji ruchu magnetycznych nanocząstek pod mikroskopem w obecności mikrofal i bez nich. Ruch nanocząstek w polu widzenia mikroskopu był wymuszony przez zastosowanie stałego pola magnetycznego. Porównywano prędkości nanocząstek w obecności pola elektromagnetycznego i bez niego.

7

Kreatywność w zarządzaniu projektami – burza mózgów jako metoda heurystyczna (ujęcie syntetyczne)

Świątek M.

Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska

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2017

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z. 105

495--503

PL

Innowacje i procesy transformacji struktury wewnętrznej sprawiły, że firmy dostrzegają potencjał zespolonych zasobów siły roboczej; międzynarodowa arena biznesu jest przesiąknięta konwencjonalnymi „wspomagaczami” zarządzania, a dotychczasowe metody przestają wystarczać. Firmy poszukują otwartości na świat, przekraczania barier i łamania konwenansów, hołdując konotacji „kreatywny pracownik to kreatywna organizacja”. Celem artykułu jest przedstawienie istoty kreatywności we współczesnym zarządzaniu projektami i prezentacja burzy mózgów jako jednego z narzędzi jej stymulacji.

EN

Innovation and internal-transformation processes make the companies notice the potential of collaboration; the international area is overfilled with conventional tools, standard instruments are not enough. Companies are looking for openness, experiences and opportunities for breaking the barriers. This is a tribute for a connotation saying „a creative worker means a creative organization”. The purpose of the article is to present the matter of creativity in project management process as well as introducing brainstorming as one of the tools stimulating creativity.

8

Influence of substructure properties on natural vibrations of periodic Euler-Bernoulli beams

Świątek M., Jędrysiak J., Domagalski Ł.

Vibrations in Physical Systems

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2016

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Vol. 27

377--384

EN

In this paper there are considered vibrations of Euler-Bernoulli beams with geometrical and material properties periodically varying along the axis. The basic exact equations with highly oscillating periodic coefficients are replaced by the system of averaged equations with constant coefficients. The new model is based on the tolerance modelling technique, which describes macro-dynamics of the beam including the effect of the microstructure size. The purpose of this paper is to present an approximately equivalent model, which describe vibrations of periodic beams taking into account length of the periodicity cell.

9

A study on natural frequencies of Timoshenko beam with rapidly varying stiffness

Świątek M., Domagalski Ł., Jędrysiak J.

Vibrations in Physical Systems

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2016

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Vol. 27

369--376

EN

Vibrations of Timoshenko beams with properties periodically varying along the axis are under consideration. The tolerance method of averaging differential operators with highly oscillating coefficients is applied to obtain the governing equations with constant coefficients. The dynamics of Timoshenko beam with the effect of the cell length is described. A asymptotic model is then constructed, which is further studied in analysis of the low order natural frequencies. The proposed model is able to describe dynamics of beams made of non-slender cells.

10

Wyznaczenie przemieszczeń powierzchniowych na osuwisku w Kłodnem (gmina Limanowa, południowa Polska)

Ćwiąkała P., Stanisz J., Wróbel A., Kaczmarczyk R., Drwal P., Grabek P., Daroch M., Pękala M., Świątek M., Zierkiewicz M.

Przegląd Geologiczny

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2016

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Vol. 64, nr 2

122--130

EN

Examination of the landslide in Kłodne was carried out in 2013 and 2014. The work was divided into two parts: geological engineering investigations (mapping of the external borders of the landslide) and geodetic surveying (photogrammetric studies and monitoring of surface movements). The boundaries of the landslide were marked using a Garmin eTrex GPS receiver and a geological compass (Freiberg). The boundaries have not changed and is convergent with previous studies. In the south-western part of the landslide the boundary is blurred as a result of anthropogenic transformation of the area. In the south-eastern part (as at May17, 2014) about 200 m3 of the colluvial material has been moved. Photogrammetric studies were based on the analysis of aerial photos from May 26, 2009 (prior tothe landslide formation) and on the orthophotomap created from images taken in July 2010, after the formation of the landslide. Displacement vectors were determined by comparing the locations of specific terrain details in the pictures taken before and after the mass movements occurred. In the upper part of the landslide the maximum horizontal displacement value was 87.7 m, the minimum was 6.2, and the average – 84.5 m. In the lower part of the landslide the horizontal displacements amounted to 65.5 m, had a minimum value of 10.3, and an average of 54.8 m. In the last stage of the study the base measurement network was created. It consisted of 68 points stabilized in the ground. The measurements were performed using the static GNSS observations method and linear-angular measurements carried out with a precise total station. In 2013, horizontal displacements ranged from 1 to 8.1 mm, and vertical ones ranged from –9.8 to 13.5 mm. In 2014, there were displacements observed in the vicinity of the main slope. They were directed to the south. The horizontal displacement vector has reached values from 2 to 94 mm, and the vertical vector was from –63 to 16 mm.

11

Foto- i biodegradacja polistyrenu modyfikowanego trioctanem celulozy

Zielińska A., Kaczmarek H., Świątek M.

Przemysł Chemiczny

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2013

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T. 92, nr 10

1923-1928

PL

Próbki kompozytu polistyrenu (PS) z trioctanem celulozy (CTA) oraz czystych polimerów poddano działaniu krótkofalowego promieniowania UV (λ = 253,7 nm) oraz działaniu mikroorganizmów zawartych w osadzie czynnym. Zmiany, które zachodziły w strukturze polimerów i ich mieszaninach badano metodami spektroskopii FTIR i UVVis, a także chromatografii żelowej. Wyznaczono też zawartość usieciowanego żelu metodą wagową. Badania wykazały, że PS i jego mieszaniny z CTA ulegają procesowi fotodegradacji utleniającej, tworzenia grup chromoforowych i fotosieciowania z różną wydajnością. Dodatek TC do matrycy PS powoduje wzrost podatności próbek na biodegradację.

EN

Polystyrene (PS) and cellulose triacetate (CTA) as well as their mixts. were exposed to short-wavelength UV-irradn. (253,7 nm) and subjected to action of microorganisms present in an activated sludge. The changes in structure of polymers were monitored by FTIR and UV-Vis spectroscopy as well by gel permeation chromatog. The amt. of crosslinked gel was estd. by gravimetry. Photooxidative degradn. of PS and its blends with CTA was obsd. The addn. of CTA to PS matrix enhanced its susceptibility to biodegrdn.

12

Numerical simulation of heat loaded aircraft engine turbine blade - internal cooling

Świątek M., Domański R.

Journal of KONES

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2012

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Vol. 19, No. 4

601-606

EN

The objective of this thesis was to show present the impact of the turbine blade cooling on blade material temperatures well as familiarize with processes and methods of numerical simulation by designing airfoil internal cooling system. The model of airfoil was created based on drawing print nr 17.41.0114 of engine Tumański R-11F2S-300. Geometry of all models described above is created using SIMENS NX4 program based on drawings obtained from available literature, and data acquired from the Internet. The discretization into a structural finite volume grid took place in commercial pre-processor GAMBIT registered trademark (GAMBIT and FLUENT – commercial CFD codes from Ansys Inc.). Conjugated heat transfer analysis was conducted in program FLUENTregistered trademark for four different cases, where the blade material properties were changed. The goal of this thesis was to obtain temperature fields and distribution in the turbine blade airfoil and to evaluate if applied cooling would be able to cool down this thermally loaded part. Calculated results show that proposed blade heat protection method is insufficient during steady state condition, mainly on the blade leading and trailing edge. In these two locations, the blade is overheated, and the high temperature level of applied material is unacceptable for used in jet engine turbine industry.

13

Sintering of TiB2-Al composites using HP-HT method

Sulima I., Figiel P., Suśniak M., Świątek M.

Archives of Materials Science and Engineering

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2008

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Vol. 33, nr 2

117-120

EN

Purpose: The subject of the work was to study the effect of the sintering temperature on the properties and structure of TiB2-Al composites. Design/methodology/approach: TiB2-Al composites reinforced with 70 vol.% ceramic particles were prepared by powder metallurgy method. The high pressure - high temperature (HP-HT) method was employed to consolidate the sinters. Composites were sintered at pressure of 7.0 ± 0.2 GPa and temperatures of 520°C and 600°C. The duration of sintering was 60 seconds. In order to investigate the structure changes, the scanning electron microscope was applied. Young modulus measurements were carried out using ultrasonic method. Mechanical properties were determined by Vickers hardness tester. Findings: Two variants of TiB2-Al with respect to the sintering temperature (520°C and 600°C) were obtained by the HP-HT method. The application of the higher temperature of 600°C and pressure of 7.0 ± 0.2 GPa and time of 60 seconds permits to obtain the higher properties of this composites in comparison with the sinters which were obtained at 520°C. Practical implications: From a practical position it is important to optimize the sintering densification of TiB2-Al composites by high pressure -high temperature (HP-HT) method. Originality/value: The results from this work can be useful in determining conditions for sintering the materials with the high amount of titanium diboride.

14

Sintering of TiB2 ceramics

Sulima I., Figiel P., Suśniak M., Świątek M.

Archives of Materials Science and Engineering

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2007

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Vol. 28, nr 11

687-690

EN

Purpose: Titanium diborides (TiB2) ceramic is particularly interesting because it exhibits high elastic modulus and hardness as well as high thermal conductivity. The interest in TiB2 ceramic increased enormously due to these properties but applications seem to be limited due to difficulties during densification process. In the experiment the TiB2 compacts was obtained using HP-HT method. The aim of this study is to work out and optimize the sintering densification process of TiB2 ceramics. Design/methodology/approach: The high temperature-high pressure (HT-HP) Bridgman type apparatus was used for densification method of TiB2 powder. Ceramics were sintered at pressure of 7.2 ± 0.2 GPa and temperature at 1500-2300*C ± 50*C. The duration of sintering was 60 seconds. In order to investigate the structure changes, the optical and scanning electron microscope was used. Mechanical properties were determined by Vickers hardness. Young modulus measurements were carried out using ultrasonic method. Findings: The TiB2 ceramics was obtained without using sintering agents. The properties and structure of TiB2 ceramics strongly depend on conditions of sintering process. The application of the temperature of 1500*C ± 50*C and pressure of 7.2 ± 0.2 GPa and time of 60 seconds permits to obtain the TiB2 ceramics without cracks. Practical implications: The TiB2 ceramic might be used for production of composites. From a practical position it is important to optimize the sintering densification of TiB2 ceramic. Originality/value: The TiB2 ceramics were formed using HP-HT technique without the use of additives. This method of sintering for TiB2 ceramics is original one.

15

Problemy z akumulatorami kwasowymi

Świątek M.

Wiadomości Elektrotechniczne

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2002

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R. LXX, nr 7-8

290-296

PL

Przedstawiono definicje pojęć dotyczących akumulatorów. Omówiono budowę i zasady działania akumulatorów kwasowo-ołowiowych oraz czynniki wpływające na ich żywotność.

EN

Definitions of the concepts concerning the accumulators. Design features and operation principles of lead-acid accumulators; factors influencing their life.

16

Wpływ chlorowcopochodnych na degradację polistyrenu

Świątek M., Kaczmarek H., Sionkowska A.

Prace Naukowe Instytutu Technologii Organicznej i Tworzyw Sztucznych Politechniki Wrocławskiej. Konferencje

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2001

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Vol. 50, nr 23

254-257

PL

Celem pracy było zbadanie wpływu niewielkiej ilości chlorku benzylu (chB) i 1-chlorometylonaftalenu (chmNf) na przemiany fotochemiczne zachodzące w polistyrenie (PS), tj. degradację, sieciowanie, utlenianie i tworzenie wiązań podwójnych. Do badań użyto handlowego polistyrenu o liczbowo średnim ciężarze cząsteczkowym Mn=110000g/mol. Mieszano ze sobą 2%-owe benzenowe roztwory PS i dodatków w stosunku objętościowym 99:1. Próbki do badań w postaci cienkich filmów o grubości 20[mi]m uzyskano przez odparowanie rozpuszczalnika. Naświetlano je niskociśnieniową lampą rtęciową TUV 30W, emitującą światło o długości 254 nm. Próbki analizowano spektrofotometrycznie przy użyciu spektrofotometru FTIR Genesis II, spektrofotometru UV-1601PC. Wykonano również analizę GPC wykorzystując dwudetektorowy chromatograf żelowy firmy Viscotek.

EN

The aim of this work was to study the influence of small amout (1% wt) of benzyl chloride and 1(chloromethyl) naphthalene on photochemical transformations in polystyrene (degradation, crosslinking, oxidation, double bond formation). Commercial PS with Mn=110000 g/mol was used in this study. 2%-solutions of PS and organic compounds in benzene were mixed. This films (20 [mi]m thick) were obtained by solvent evaporation. The samples were exposed to low-pressure mercury lamp emitting 254 nm irradiation. Irradiated samples were investigated by FTIR (Genesis II) and UV-Vis (UV-1601PC) spectroscopy. GPC (Viscotek) analysis was also performed.

17

Roczny cykl opadów atmosferycznych w Szczecinie oraz jego związki z typami cyrkulacji atmosferycznej i temperaturą powietrza

Świątek M.

Zeszyty Naukowe. Marine Sciences / Uniwersytet Szczeciński

|

2000

|

Nr 6

65-86

EN

Frequency of occurrence of a cyclone or anticyclone circulation types influences first of all the frequency of precipitation, and exactly the number of rainy days. The cyclone circulation increases the rainfall frequency and the anticyclone circulation decreases this frequency. This produces an effect observable during the whole year. However, the influence of occurrence of the particular circulation type has little effect on precipitation totals in fact. It is only observable in cold half-year when the increased frequency of days with cyclone circulation in winter and in November brings about relatively abundant rainfalls in this period of time. While the air temperature value increases, diurnal precipitation totals increases, but the number of rainy days drops own. It is due to the fact that in the warm period the rainfalls are abundant, and in the cold one less abundant but more frequent. It is also to be underlined that the very strong annual maximum of the precipitation totals in summer is undoubtedly connected with high temperatures in this period. Increased values of the rainfall sums in November and December as well as their increased frequency in this period and January and February are largely conditioned by the considerable frequency of the cyclone circulation in that time. The carried out analysis may prove the dissimilarity of the factors which generate precipitation in the particular half - year times. In November-April period these factors are formed within depressions and in May-October period the decisive role is taken over by the convection caused by heated subsoil.

18

Uptake of molecular oxygen by Co(II) chelates with peptides in an aqueous colution : Part XI : Stereoselective properties of oxygenated diastereoisomeric dipeptide systems

Kufelnicki A., Świątek M.

Polish Journal of Chemistry

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1999

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vol. 73 nr 4

579-591

EN

The reaction of oxygen uptake by Co(II) complexes with a group of diastereoisimetric dipeptides, consisting of alanine and leucine in various chiral forms, has been studied in an aqueous solution. The structure of the bridging moiety has been discussed on the basis of spectroscopic results (UV, Vis, near IR, CD, ESR). The effect of stereoselectivity has been confirmed by studies of reversibility of oxygenation. Comparative ESR measurements were done for mixed complexes with imidazole as N-base in the axial position. All of the results were compared with that for glycine dipeptides (containing only one asymmetric atom).

19

Uptake of molecular oxygen by Co(II) chelates with peptides in aqueous solution. Part X. Diastereoisomeric dipeptides as auxiliary ligands in oxygen-free complexes

Kufelnicki A., Świątek M.

Polish Journal of Chemistry

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1998

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Vol. 72, nr 8

1897-1906

EN

Co(II) complexes with group of diastereoisomeric dipeptides consisting of alanine and leucine in various chiral forms have been studied in aqueous solution. The equilibria were determined by potentiometric and spectrophometric methods, using least-squares fotting procedures. The results were compared with those for glycine dipeptides containing only one asymmetric atom.