Search results

Items from 41 to 60 out of 512,291 results

article

Fabrication and amplified spontaneous emission behavior of FAPbBr3 perovskite quantum dots in solid polymer rods

M. Naziruddin Khan, Abdullah Almohammedi

Materials Science Poland > 2022 > Vol. 40, No. 1 > 84--100

Formamidinium lead tribromide (FAPbBr₃) perovskite quantum dot (PQ-Dot) solution was incorporated in a polymer sol, which was used to fabricate solid nanocomposite rods and disks. The solid nanocomposite samples were studied by different characterization techniques. The absorption, emission, and excitation spectra of the PQ-Dot in the solid rods/disks were quite significant as compared to the spectra...

article

Analytical and numerical analysis of injection pump (stepped) shaft vibrations using timoshenko theory

Stanisław Noga, Edward Rejman, Paweł Bałon, Bartłomiej Kiełbasa, more

Acta Mechanica et Automatica > 2022 > Vol. 16, no. 3 > 215--224

The free transverse vibrations of shafts with complex geometry are studied using analytical methods and numerical simulations. A methodology is proposed for evaluating the results of a natural transverse vibration analysis as generated by finite element (FE) models of a shaft with compound geometry. The effectiveness of the suggested approach is tested using an arbitrarily chosen model of the injection...

article

Simulation evaluation of the influence of selected geometric parameters on the operation of the pneumatic braking system of a trailer with a differential valve

Dariusz Szpica, Marcin Kisiel, Jarosław Czaban

Acta Mechanica et Automatica > 2022 > Vol. 16, no. 3 > 233--241

This article presents simulation models of trailer air brake systems in configurations without a valve and with a differential valve, thus demonstrating the rationale for using a valve to improve system performance. Simplified mathematical models using the lumped method for systems without and with a differential valve are presented. The proposed valve can have two states of operation depending on...

article

Experimental and numerical small punch tests of the 14cr ods ferritic steel

Krzysztof Nowik, Zbigniew Oksiuta

Acta Mechanica et Automatica > 2022 > Vol. 16, no. 3 > 225--232

Nowadays, various small specimen test techniques have gained wide popularity and appreciation among researchers as they offer undoubtful benefits in terms of structural material characterisation. This paper focuses on small punch tests (SPTs) performed on small-sized disc specimens to assess the mechanical properties of 14Cr oxide dispersion strengthened (ODS) steel. A numerical model was established...

article

Zależność w układzie: zmiany w otoczeniu ogólnym a determinanty wyboru strategii działań dla wyodrębnionej grupy podmiotów na rynku usług lotniczych w dobie pandemii Covid-19

Agnieszka Wilczyńska-Strawa

Nowoczesne Systemy Zarządzania > 2022 > T. 17, nr 2 > 29--45

Na podstawie teoretycznych założeń funkcjonowania otoczenia ogólnego organizacji, ze szczególnym uwzględnieniem wymiarów go tworzących oraz jego znaczenia dla organizacji, przeprowadzona została z wykorzystaniem analizy przypadków, jako metody badawczej wiodącej, identyfikacja czynników zmian dla prowadzenia działalności linii lotniczej na rynku usług lotniczych w dobie pandemii Covid-19. Wskazano...

article

A Concept to Carry Out a Torsion Test on Components Made of 20CrNiMo2-2 Steel Using Additive Techniques

Krzysztof Grzelak, Janusz Kluczyński, Bartłomiej Sarzyński

Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa > 2022 > Vol. 13, Nr 2 (48) > 97--105

In recent years, additive manufacturing (AM) technologies, have been one of the fastest developing methods of production of various components. As far as building material is concerned, they allow for using not only polymers, but also composites or metals. Products fabricated using said technologies are used in various areas of industries, for instance in medicine, architecture, entertainment, and...

article

The challenges of digital marketing of food products towards the behavior of young consumers

Norbert Kawęcki

Nowoczesne Systemy Zarządzania > 2022 > T. 17, nr 2 > 47--58

This article provides up-to-date information on the marketing of foods and non-alcoholic beverages to children and the changes that have occurred, focusing in particular on the major shift to digital marketing. It examines trends in media use among children, marketing methods in the new digital media landscape and children’s engagement with such marketing. It also considers the impact on children...

article

Klasyfikacja barier komunikacyjnych z pokoleniem Z w miejscu pracy

Alla Sulyma

Nowoczesne Systemy Zarządzania > 2022 > T. 17, nr 2 > 13--27

Przedstawiciele pokolenia Z wchodzą obecnie do organizacji z określonymi oczekiwaniami, umiejętnościami oraz kompetencjami. Warunkują one sposób zachowania i budowania relacji między nimi a innymi pracownikami, a także przełożonymi w każdej organizacji. Stąd celem rozważań jest analiza i klasyfikacja barier komunikacyjnych z pokoleniem Z. Na początku w wyniku krytycznej analizy literatury przedstawiono...

article

Wpływ zmian klimatu na bezpieczeństwo ludności cywilnej

Justyna Stochaj

Nowoczesne Systemy Zarządzania > 2022 > T. 17, nr 2 > 59--68

Artykuł poświęcony został przedstawieniu wpływu zmian klimatu na bezpieczeństwo ludności cywilnej. Podzielony został na trzy główne części. Pierwsza poświęcona została zagadnieniu związku występującego pomiędzy człowiekiem, a środowiskiem. W drugiej zaprezentowano wybrane przyczyny zmian klimatu. W trzeciej zaś zawarto wybrane skutki zmian klimatu, ze szczególnym uwzględnieniem ich wpływu na bezpieczeństwo...

article

Wypalenie zawodowe personelu medycznego : krótki przegląd przykładów z okresu pandemii SARS-CoV-2

Joanna Jończyk

Nowoczesne Systemy Zarządzania > 2022 > T. 17, nr 2 > 69--78

Przyglądając się zjawisku wypalenia zawodowego z szerokiej perspektywy jawi się ono jako poważny problem dla wielu środowisk. Jednak w przypadku służb świadczących opiekę medyczną należy uznać go za absolutnie priorytetowy zwłaszcza w warunkach pandemii SARS-CoV-2. Przede wszystkim chodzi tu o ogromne koszty zarówno świadczeniodawców, pacjentów i ich rodzin a także całego systemu opieki zdrowotnej...

article

Determination of Firing Solution Settings for Engagement of UAVs by a Man-Portable Counter-UAV System

Łukasz Szmit, Grzegorz Leśnik

Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa > 2022 > Vol. 13, Nr 2 (48) > 41--50

The paper presents the operating principle of the Man-Portable Counter Miniature Unmanned Aerial Vehicles System (MPC-MUAVS), with particular reference to the development of its firing solution settings and the methodology and structure of development of the firing tables implemented in the ballistic calculator of the MPC-MUAVS. This ballistic calculator has been applied in the MPC-MUAVS targeting...

article

Utilisation of Games and Virtual Reality to Train Competences Relating to Industry 4.0

Andrzej Grabowski, Mieszko Wodzyński

Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa > 2022 > Vol. 13, Nr 2 (48) > 87--96

Implementation of concepts of Industry 4.0 and cyber-physical production systems (CPPS) requires changes to be introduced to production processes and leads to the fact that employees are expected to acquire new competences and skills pertaining to their work tasks in the production industry. It is assumed that employees of factories of the future will have to execute more complicated tasks, such as...

article

Testing ToF Sensors for Use in Obstacle Detection Systems

Grzegorz Szczepański, Aliaksandra Shmyk

Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa > 2022 > Vol. 13, Nr 2 (48) > 65--74

ToF (Time of Flight) sensors have been gaining popularity in recent times as a cheap and accurate way to take distance measurements. They may prove to be a key component of obstacle detection systems in the near future. This paper presents a stepper motor system with two measurement modules containing ToF sensors. The results of distance measurements made with these modules relative to a flat surface...

article

Test Bench Concept for Testing of Gripper Properties in a Robotic Palletizing Process

Jarosław Panasiuk, Wojciech Kaczmarek, Michał Siwek, Szymon Borys

Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa > 2022 > Vol. 13, Nr 2 (48) > 51--64

Palletizing and depalletizing processes require specialized equipment, such as grippers dedicated to the type and dimensions of the goods to be handled. The traditional approach used in the robotisation of palletizing workstations is therefore mainly based on the development of specialized grippers, whose design limits their use in other applications. The article presents a concept of a modular gripper...

article

Conceptual Design of a Reusable Submunition Dispenser for Unmanned Aerial Vehicles

Michał Jasztal, Artur Kłosiński

Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa > 2022 > Vol. 13, Nr 2 (48) > 25--40

The paper describes a concept for developing a dedicated combat asset for performing effective fragmentation attack on surface targets and having dimensions and weight suited to being carried by an unmanned aerial vehicle (UAV) with a maximum payload of 150 kg. The designed combat asset, i.e. cluster bomblets ejected from a reusable submunition dispenser, will be intended for destroying enemy personnel,...

article

Application of Virtual Reality (VR) Technology in the Assessment of Eye Hazards Caused by Laser Radiation And Selection of Individual Eye Protection Equipment

Mieszko Wodzyński, Grzegorz Owczarek, Joanna Szkudlarek, Marcin Jachowicz

Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa > 2022 > Vol. 13, Nr 2 (48) > 75--86

This paper discusses the issues of eye protection against harmful laser radiation and provides an example of the use of virtual reality (VR) technology for laser safety training. A newly developed VR application dedicated to the selection of protective eyewear in the context of identified real-life threats caused by harmful high-energy optical radiation is presented. The VR application for selecting...

article

Ability of Joining Composite Structures with Metal by Riveting

Jan Godzimirski, Angelika Arkuszyńska

Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa > 2022 > Vol. 13, Nr 2 (48) > 9--24

The technology of repairing the composite coverings of the MiG-29 airframe provides for the possibility of repairing with the use of metal battens, connected with the composite cover by riveting, with the use of metal washers protecting the composite against damage during rivet upsetting. Tests were carried out to check the possibility of replacing the composite covering repairs with solid rivets...

article

Quality of transport services and customer satisfaction measurement

Iwona Hajduk, Miloš Poliak, Jozef Gašparík

Archiwum Motoryzacji > 2022 > Vol. 96, nr 2 > 51--76

The development and functioning of the global economy market is not possible without a net-work of transport connections - communication infrastructure, as well as a service provider - consumer relationship. Transport is a technological process of the distance of people, objects or energy. Knowledge of the logistics system and its processes is essential for fully functioning and effective logistic...

article

Application of modelling and simulation to evaluate the theta method used in diagnostics of automotive shock absorbers

Zbigniew Lozia

Archiwum Motoryzacji > 2022 > Vol. 96, nr 2 > 5--30

The dynamic properties of the car's suspension largely depend on the damping that results from the state of the shock absorbers. Their technical condition is essential for vehicle occupants’ comfort and traffic safety. It changes with the time and intensity of use of the vehicle. Therefore, adequate methods of non-destructive (diagnostic) testing of suspension damping have been sought for many years...

article

Intensity of use of hybrid vehicles during the initial period of their operation

Leon Prochowski, Mateusz Ziubiński

Archiwum Motoryzacji > 2022 > Vol. 96, nr 2 > 31--50

Extensive environmental protection activities include the promotion of alternative drive systems for motor vehicles. An important role in this field is played by hybrid vehicles, with their low operation costs being a strong marketing argument. Can such economies be conducive to the intensity of use of hybrid vehicles compared with vehicles with conventional drive systems? To answer this question,...

Data set:
BazTech

Publication date

Last 3 months (267)
Last year (5,209)
Last 3 years (34,725)

Close

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

From:

To:
Set your own date range

Content availability

None (348,217)
Available (164,074)

Publication language

Polish (338,435)
English (179,819)
Russian (1,526)
Czech (306)
German (221)
Ukrainian (206)
Slovak (127)
French (81)
Byelorussian (13)
Italian (10)
Spanish (6)
Lithuanian (2)
Hungarian (1)
Moldavian (1)
Undetermined (1)
more

Keywords

POLSKA (3,421)
OCHRONA ŚRODOWISKA (3,398)
MECHANICAL PROPERTIES (3,206)
BEZPIECZEŃSTWO (3,132)
POLAND (3,114)
MODELOWANIE (3,051)
METODA ELEMENTÓW SKOŃCZONYCH (2,664)
LOGISTYKA (2,663)
WŁAŚCIWOŚCI MECHANICZNE (2,550)
PROJEKTOWANIE (2,522)
TRANSPORT (2,495)
FINITE ELEMENT METHOD (2,390)
OPTYMALIZACJA (2,390)
MICROSTRUCTURE (2,383)
OPTIMIZATION (2,307)
ROZWÓJ ZRÓWNOWAŻONY (2,204)
SAFETY (2,203)
LOGISTICS (2,125)
ZARZĄDZANIE (2,119)
MIKROSTRUKTURA (2,089)
GOSPODARKA ODPADAMI (2,070)
SIMULATION (2,031)
MODELLING (2,028)
DIAGNOSTYKA (1,946)
UNIA EUROPEJSKA (1,867)
SUSTAINABLE DEVELOPMENT (1,812)
FEM (1,802)
HISTORIA (1,784)
RECYCLING (1,743)
JAKOŚĆ (1,735)
GÓRNICTWO (1,729)
RECYKLING (1,712)
ARCHITEKTURA (1,710)
QUALITY (1,655)
BUDOWNICTWO (1,634)
MANAGEMENT (1,605)
ARCHITECTURE (1,603)
METALE CIĘŻKIE (1,532)
BIOMASA (1,530)
ODNAWIALNE ŹRÓDŁA ENERGII (1,528)
MONITORING (1,523)
SYMULACJA (1,523)
BETON (1,514)
HEAVY METALS (1,495)
EKOLOGIA (1,492)
EKSPLOATACJA (1,462)
MINING (1,433)
HISTORY (1,427)
EFEKTYWNOŚĆ ENERGETYCZNA (1,417)
RELIABILITY (1,402)
PRAWO (1,377)
WENTYLACJA (1,373)
ENVIRONMENTAL PROTECTION (1,372)
DIAGNOSTICS (1,367)
ENERGETYKA (1,363)
OCZYSZCZANIE ŚCIEKÓW (1,341)
PUBLIC TRANSPORT (1,324)
MODELING (1,320)
ENERGIA ELEKTRYCZNA (1,316)
EUROPEAN UNION (1,311)
ŚCIEKI (1,302)
STRUCTURE (1,283)
MODEL MATEMATYCZNY (1,282)
NIEZAWODNOŚĆ (1,273)
BIOMASS (1,267)
KLIMATYZACJA (1,248)
MATHEMATICAL MODEL (1,240)
WODA (1,205)
KOROZJA (1,196)
ECOLOGY (1,195)
TRANSPORT KOLEJOWY (1,185)
ZUŻYCIE (1,170)
WEAR (1,165)
WASTE MANAGEMENT (1,161)
EFFICIENCY (1,143)
ENERGY EFFICIENCY (1,139)
CORROSION (1,138)
LAW (1,133)
KOMPOZYTY (1,131)
DESIGN (1,124)
SECURITY (1,122)
CONCRETE (1,119)
GEODEZJA (1,109)
MODERNIZACJA (1,106)
COMPUTER SIMULATION (1,102)
MODELOWANIE NUMERYCZNE (1,101)
OBRÓBKA CIEPLNA (1,101)
SEWAGE SLUDGE (1,092)
SYMULACJA KOMPUTEROWA (1,092)
ŚRODOWISKO (1,088)
STEROWANIE (1,087)
ENERGIA (1,083)
SOIL (1,076)
STRUKTURA (1,071)
SILNIK SPALINOWY (1,051)
ODLEWNICTWO (1,049)
DRGANIA (1,041)
HEAT TREATMENT (1,041)
ZIELEŃ MIEJSKA (1,041)
CONTROL (1,036)
more

INFONA - science communication portal

Search results

Fabrication and amplified spontaneous emission behavior of FAPbBr3 perovskite quantum dots in solid polymer rods

Analytical and numerical analysis of injection pump (stepped) shaft vibrations using timoshenko theory

Simulation evaluation of the influence of selected geometric parameters on the operation of the pneumatic braking system of a trailer with a differential valve

Experimental and numerical small punch tests of the 14cr ods ferritic steel

Zależność w układzie: zmiany w otoczeniu ogólnym a determinanty wyboru strategii działań dla wyodrębnionej grupy podmiotów na rynku usług lotniczych w dobie pandemii Covid-19

A Concept to Carry Out a Torsion Test on Components Made of 20CrNiMo2-2 Steel Using Additive Techniques

The challenges of digital marketing of food products towards the behavior of young consumers

Klasyfikacja barier komunikacyjnych z pokoleniem Z w miejscu pracy

Wpływ zmian klimatu na bezpieczeństwo ludności cywilnej

Wypalenie zawodowe personelu medycznego : krótki przegląd przykładów z okresu pandemii SARS-CoV-2

Determination of Firing Solution Settings for Engagement of UAVs by a Man-Portable Counter-UAV System

Utilisation of Games and Virtual Reality to Train Competences Relating to Industry 4.0

Testing ToF Sensors for Use in Obstacle Detection Systems

Test Bench Concept for Testing of Gripper Properties in a Robotic Palletizing Process

Conceptual Design of a Reusable Submunition Dispenser for Unmanned Aerial Vehicles

Application of Virtual Reality (VR) Technology in the Assessment of Eye Hazards Caused by Laser Radiation And Selection of Individual Eye Protection Equipment

Ability of Joining Composite Structures with Metal by Riveting

Quality of transport services and customer satisfaction measurement

Application of modelling and simulation to evaluate the theta method used in diagnostics of automotive shock absorbers

Intensity of use of hybrid vehicles during the initial period of their operation

Filter options

Publication date

Content availability

Publication language

Keywords

INFONA - science communication portal

Search results

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Content availability

Publication language

Keywords

Reporting an error / abuse

Sending the report failed

Accessibility options