Autor: Nader, Mirosław - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An analysis of the causes and consequences of the information gap in IT projects. The client’s and the supplier’s perspective in Poland
Autorzy:: Wachnik, Bartosz
Pryciński, Piotr
Murawski, Jakub
Nader, Mirosław
Powiązania:: https://bibliotekanauki.pl/articles/2067406.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: information gap
IT project
ERP
CRM
Opis:: The high IT project failure rate means that the stakeholders start recognizing the need to analyze the factors influencing project success, previously deemed irrelevant in the face of technology, including the agile approach, eliminating project documentation, effective prototyping, information asymmetry between project parties, while also perfecting communication and the methods of knowledge transfer between team members. Currently, IT projects are researched using a holistic approach, seeing an implementation project as a whole, subject to specific regularities, which may not be deduced based on the knowledge of their individual components. We would like to enrich the research perspective with the notion of the information gap. The article aims to evaluate and analyze the information gap in ERP and CRM project implementations. We have researched the information gap from the perspective of project managers on the supplier’s and the client’s sides. The study was conducted in Poland between 2014 and 2021 in a group of medium companies, using qualitative research methods: unstructured interview and direct observation. The study led to a qualitative characterization of the information gap and the identification of its causes and consequences. The presented research result can help achieve three goals, i.e. studying the information gap in the selected group of IT projects, indicating the nature of imperfection in information access by the project participants, and raising awareness amongst project managers regarding risk management issues, especially uncertainty. Reducing the information gap can be used by the transaction parties to implement a strategy of building the object’s resilience to uncertainty and its consequences. These results can help develop methodologies of IT project implementation, limiting the level of risk and uncertainty.
Źródło:: Archives of Transport; 2021, 60, 4; 219--244
0866-9546
2300-8830
Pojawia się w:: Archives of Transport
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Selected aspects of vibroacoustic interactions analysis in the vicinity of tram lines
Wybrane aspekty analizy oddziaływań wibroakustycznych w otoczeniu linii tramwajowych
Autorzy:: Korzeb, Jarosław
Nader, Mirosław
Ilczuk, Przemysław
Różowicz, Jan
Powiązania:: https://bibliotekanauki.pl/articles/33340156.pdf
Data publikacji:: 2019
Wydawca:: Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
Tematy:: vibroacoustic impact
vibroacoustics
selected aspects
analysis
tram line
vibration insulation
urban agglomeration
Matlab
oddziaływanie wibroakustyczne
wybrane aspekty
analiza
linia tramwajowa
wibroizolacja
aglomeracja miejska
Opis:: The vibroacoustic impacts in the urban agglomeration constitute an important element worsening the comfort of working and resting conditions for the residents. The industrialized zones can be identified as the main surface sources of these impacts, but outside these areas there is a significant number of linear sources such as communication routes. In described areas the point industrial sources and the point moving sources with random or periodic repeatability, which are single journeys of means of transport, can be identified. Dynamic interactions occurring between the superstructure and the exploited transport infrastructure are an important phenomenon and are subject to continuous analysis, due to the multitude of applied solutions of vibroisolation systems. Statistics show that the exposure of urban residents accounts for about 60% of the total population exposed to vibroacoustic impacts. In the paper the attention was paid to the impacts emitted to the environment for selected types of vibroisolation solutions for a selected tramway track and with the same enforcement. A detailed analysis of the impact occurring in the area of the tram line was made. The research used software prepared by the authors in the Matlab environment.
Oddziaływania wibroakustyczne w aglomeracji miejskiej stanowią ważny element pogarszający komfort warunków pracy i odpoczynku dla mieszkańców. Jako główne powierzchniowe źródła tych oddziaływań wskazać można strefy uprzemysłowione, ale poza tymi obszarami występuje znacząca liczba źródeł liniowych w postaci szlaków komunikacyjnych. We wskazanych miejscach zidentyfikować można punktowe źródła przemysłowe oraz punktowe źródła ruchome o losowej lub okresowej powtarzalności, które stanowią pojedyncze przejazdy środków transportu. Interakcje dynamiczne zachodzące pomiędzy suprastrukturą oraz eksploatowaną infrastrukturą transportową są zjawiskiem ważnym i podlegają ciągłym analizom, ze względu na mnogość stosowanych rozwiązań systemów wibroizolacji. Statystyki wykazują, iż narażenie mieszkańców miast stanowi około 60% całkowitej populacji społeczeństwa łącznego narażenia na oddziaływania wibroakustyczne. W pracy poddano uwadze oddziaływania emitowane do środowiska dla wybranych typów rozwiązań wibroizolacji wybranego torowiska tramwajowego z zachowaniem tego samego wymuszenia. Poddano szczegółowej analizie oddziaływania występujące w otoczeniu torowiska. W badaniach wykorzystano autorskie oprogramowanie w środowisku Matlab.
Źródło:: Rail Vehicles/Pojazdy Szynowe; 2019, 1; 1-10
0138-0370
2719-9630
Pojawia się w:: Rail Vehicles/Pojazdy Szynowe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Using BCI and EEG to process and analyze driver’s brain activity signals during VR simulation
Autorzy:: Nader, Mirosław
Jacyna-Gołda, Ilona
Nader, Stanisław
Nehring, Karol
Powiązania:: https://bibliotekanauki.pl/articles/2067410.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: signal processing
EEG
BCI
emotion recognition
driver
virtual reality
przetwarzanie sygnałów
rozpoznawanie emocji
kierowca
symulacja wirtualna
Opis:: The use of popular brain–computer interfaces (BCI) to analyze signals and the behavior of brain activity is a very current problem that is often undertaken in various aspects by many researchers. This comparison turns out to be particularly useful when studying the flows of information and signals in the human-machine-environment system, especially in the field of transportation sciences. This article presents the results of a pilot study of driver behavior with the use of a pro-prietary simulator based on Virtual Reality technology. The study uses the technology of studying signals emitted by the human mind and its specific zones in response to given environmental factors. A solution based on virtual reality with the limitation of external stimuli emitted by the real world was proposed, and computational analysis of the obtained data was performed. The research focused on traffic situations and how they affect the subject. The test was attended by representatives of various age groups, both with and without a driving license. This study presents an original functional model of a research stand in VR technology that we designed and built. Testing in VR conditions allows to limit the influence of undesirable external stimuli that may distort the results of readings. At the same time, it increases the range of road events that can be simulated without generating any risk for the participant. In the presented studies, the BCI was used to assess the driver's behavior, which allows for the activity of selected brain waves of the examined person to be registered. Electro-encephalogram (EEG) was used to study the activity of brain and its response to stimuli coming from the Virtual Reality created environment. Electrical activity detection is possible thanks to the use of electrodes placed on the skin in selected areas of the skull. The structure of the proprietary test-stand for signal and information flow simulation tests, which allows for the selection of measured signals and the method of parameter recording, is presented. An important part of this study is the presentation of the results of pilot studies obtained in the course of real research on the behavior of a car driver.
Źródło:: Archives of Transport; 2021, 60, 4; 137--153
0866-9546
2300-8830
Pojawia się w:: Archives of Transport
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Pilot Study over Secondary Task Cognitive Workload Induced on Drivers in AS 1200-6 Simulator
Autorzy:: Kruszewski, Mikołaj
Niezgoda, Michał
Kamiński, Tomasz
Matysiak, Arkadiusz
Nader, Mirosław
Powiązania:: https://bibliotekanauki.pl/articles/504393.pdf
Data publikacji:: 2017
Wydawca:: Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:: driving simulators
cognitive load
secondary task
Opis:: Modern cars are more and more frequently equipped not only with the driver assisting systems, but also with multimedia devices allowing to track the information, use the Internet or send and receive e-mails. This type of activity can cause dangerous situations by inducing various forms of distraction to the driver. In order to identify the effects caused by performing additional tasks while driving, two types of secondary tasks were proposed. The following article presents the results of a pilot study that uses two additional tasks to induce the driver with cognitive load not related to driving. At the same time, in the course of the experiment, both the driving performance and the quality of performing additional tasks were observed. The article describes selected results of the conducted study.
Źródło:: Logistics and Transport; 2017, 36, 4; 69-78
1734-2015
Pojawia się w:: Logistics and Transport
Dostawca treści:: Biblioteka Nauki

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