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Tytuł:
Selected problems of logistics customer service in the context of the development of omni-channel trade
Autorzy:
Strojny, S.
Powiązania:
https://bibliotekanauki.pl/articles/409097.pdf
Data publikacji:
2017
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
trading company
wholesale trade
multichannel trade
multichannel sale
omnichannel sale
Opis:
The author has made a multidimensional review of the determinants of retail business strategies in the context of the development of the omni-channel trade concept. The development of ICT and innovation in new omni-channel sales, affect the changes in customer acquisition processes. A customer-oriented trading company must take these changes into account in its customer service strategy and effectively meet new customer needs resulting from these changes. The article concludes with identifying new logistical customer service challenges and proposing operational actions needed to meet these challenges. The development of the omni-channel concept implies the simultaneous use of traditional channels and online channels in sales strategies. In addition, the company uses modern forms of promotion based on electronic channels and social media. These conditions necessitate a change in the architecture of the business enterprise's processes.
Źródło:
Research in Logistics & Production; 2017, 7, 4; 327-336
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multichannel selling – the key to success in retail
Autorzy:
Pluta-Olearnik, Mirosława
Jadach, Robert
Powiązania:
https://bibliotekanauki.pl/articles/611034.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
multichannel selling
integration of sales channels
retail
multichannel marketing
e-commerce
Opis:
Theoretical background: The rapid technological development of the past decade has exerted a major influence on consumer behaviours and created new ways of reaching customers. The contemporary consumer freely switches between brick-and-mortar, online and mobile sales channels, expecting that a product will be available any time, any place. Such behaviours pose a serious challenge to retail enterprises, in particular in the context of integrating offlne and online sales channels.Purpose of the article: This paper aims to determine the extent to which contemporary enterprises need to implement multichannel strategies to ensure access to goods and services in order to satisfy the increasing expectations of purchasers and gain advantage in the highly competitive market. A broader thread of the discussions concerns the transformation of the so-called business models taking place in the present retail sector in Poland and across the globe.Research methods: The problem discussed in this paper required a review of the relevant international literature at the initial stage in order to determine the results of theoretical and empirical research on the development of multichannel selling in the retail market in light of changing consumer purchasing preferences. The following available bases were used: ScienceDirect, Taylor & Francis Online, Emerald and SAGE Journals, as well as online research of market reports and statistical studies, which contributed to the analysis of the transformations occurring in the retail sector.Main findings: This paper indicates two major marketing consequences for the enterprises applying multiple channels in gaining access to goods and services. In order to rise to market challenges, retail enterprises must not only employ the multichannel selling strategy but also ensure its integrity. In the face of such challenges, a new approach in creating unique values and solutions in the areas of logistics, distribution, promotion and pricing policy is required. Online sale channels pose a challenge to retail enterprises, in particular as regards delivering identical experiences and a consistent offer to the consumer.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia; 2019, 53, 1
0459-9586
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The level of omnichannel use in Polish MSMEs
Autorzy:
Szymczyk, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/1181953.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
omnichannel
multichannel
management
company
strategy
Opis:
Nowadays, trade is shifting mainly to virtual reality. Increasingly more customers, using various types of mobile devices such as computers, smartphones, tablets, look for products and services in online stores, counting on fast, convenient and efficient fulfilment of the order. To meet the customers’ requirements, trade enterprises may implement the omnichannel strategy as a way to streamline the entire sales and distribution system of goods from the store to the customer, ensuring the possibility of continuous monitoring transactions. The paper examines the development of omnichannel strategy by the Polish small and medium enterprises. The underlying assumption of the paper is to identify to what extent the Polish companies concentrate on omnichannel strategy in the functioning of their business. The discussion is based on the results of the study obtained from the CAWI survey, CATI survey, and the in-depth interview conducted among the group of Polish MSMEs in Silesian Voivodeship.
Źródło:
Operations Research and Decisions; 2020, 30, 3; 113--122
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multichannel ultrasonic range finder for blind people navigation
Autorzy:
Gelmuda, W.
Kos, A.
Powiązania:
https://bibliotekanauki.pl/articles/202400.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multichannel ultrasonic range finder
blind people navigation
Opis:
The purpose of this paper is to present a multichannel ultrasonic range finder which was designed for the navigation system for blind people. A substantial number of consultations with blind people in the Blind People Centre in Krakow have shown that the navigation and obstacle detection with a help of a white stick only, is not sufficient enough to assure a high safety level. Electronic aids which are being designed for blind people should be mobile, comfortable and low-powered. That is why the MOBIAN© (a mobile safety system for the blind) project is being carried out by the authors to create a highly reliable safety navigation system for blind people. It could not only improve blind people quality of life but also their safety, especially when they are walking in unknown areas. As a part of this project, the multichannel ultrasonic range finder was designed, produced and tested. The tests have proven the device is capable of detecting objects from different directions in a range over 4 m. The device interface is easy to manage and can be controlled by almost any microcontroller or FPGA chip. The designed range finder is to be implemented in the electronic assistant project for blind people. Other systems, including the industrial ones, for instance, mobile robots or gates that count people entries, could benefit from this multichannel range finder. Usually, some low-cost ultrasonic range finders use two transducers for each channel (a transmitter and a receiver). The designed device employs only one transducer per channel which minimizes the end-device size and cost and at the same time provides with the main functionality. Novelty of this device is its multichannel design and the emplacement of the ultrasonic transducers, which can be used due to the application of the multichannel analog multiplexer. Thus, it is possible to detect obstacles, even the inclined ones, with higher reliability and increase the safety of blind people while walking. Also, this design and the transducers’ placement allow to detect obstacles much quicker, when the blind user suddenly turns.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 3; 633-637
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Processes of concentration of wholesale trade in Poland in the light of empirical research
Procesy koncentracji w handlu hurtowym w Polsce w świetle badań empirycznych
Autorzy:
Chromińska, M.
Strojny, Sz.
Powiązania:
https://bibliotekanauki.pl/articles/362072.pdf
Data publikacji:
2016
Wydawca:
Wyższa Szkoła Logistyki
Tematy:
trade company
wholesale trade
multichannel trade
omnichannel sale
przedsiębiorstwo handlowe
handel hurtowy
handel wielokanałowy
sprzedaż multichannel
sprzedaż omnichannel
Opis:
Background: The increasing role of trade as the integrator of distribution channels has been observed in Poland recently. Retail companies have gained a competitive advantage in relationships with both suppliers and recipients. The natural questions are, how the situation of the wholesale trade looks at present in such a situation and what prospects it has for the future. The main aim of this paper is to identify and describe the influence of new conditions on the development of the wholesale trade as part of the supply chain. The hypothesis was assumed that this development is determined by processes related to the concentration of trade companies, which were also visiblerecently in Poland. Methods: The main concentration processes in Polish trade were identified based on a literature review and previous research. Then, based on the results of a survey and data obtained from the Central Statistical Office, the influence of these trends on the development of wholesale trade was evaluated. The further directions of changes in Polish wholesale trade were also indicated. Empirical research was conducted by the use of a direct interview with a random sample of 108 wholesale companies, both independent and as part of chains. The research focused on wholesalers' opinions of market trends and integration processes in Polish wholesale trade and cover the years 2014-15. Results: The results show the key market processes with regard to trade concentration. The biggest threats to the development of the wholesale trade are the processes of the horizontal concentration in retail. The concentration of retail companies leads to a shortening of the distribution channels and direct purchases from producers omitting the wholesale stage. Despite these threats, wholesalers describe their situation as good, and their opinion can be confirmed in data provided by the Central Statistical Office. Conclusions: The market processes identified must be taken into consideration in formulating the strategies of wholesale companies in Poland. The author believes that one of possible solutions which should be implemented by wholesalers is multichannel sales, as described in this paper.
Wstęp: W ostatnich latach wzrasta rola handlu, jako integratora kanałów dystrybucji w Polsce. Przedsiębiorstwa handlu detalicznego, uzyskały przewagę konkurencyjną zarówno w relacjach z dostawcami, jak i w relacjach z odbiorcami. Powstaje pytanie, jak w tym kontekście wygląda sytuacja handlu hurtowego i jakie są perspektywy dalszego rozwoju tego segmentu działalności handlowej. Głównym celem pracy była identyfikacja i określenie wpływu nowych uwarunkowań rozwoju handlu hurtowego, jako elementu łańcucha dostaw. Autor przyjął hipotezę, że rozwój handlu hurtowego jest zdeterminowany przez procesy koncentracji przedsiębiorstw handlowych, które są zauważalne w Polsce w ostatnich latach. Metody: Na podstawie literatury oraz wcześniejszych badań zidentyfikowano podstawowe procesy koncentracji w polskim handlu. Następnie, w oparciu o wyniki badań ankietowych oraz dane GUS, dokonano oceny wpływu tych trendów na rozwój handlu hurtowego oraz wskazano kierunki dalszych przemian w polskim handlu hurtowym. Badania empiryczne przeprowadzono metodą wywiadu bezpośredniego na losowo dobranej próbie 108 przedsiębiorstw handlu hurtowego. Zakres podmiotowy badania, obejmował zarówno hurtownie niezależne jak i hurtownie sieciowe. Przedmiot badań stanowiły opinie hurtowników dotyczące tendencji rynkowych oraz procesy integracyjne zachodzące w polskim hurcie. Zakres przestrzenny badań obejmował obszar RP, a zakres czasowy obejmował lata 2014 - 2015. Wyniki: Wyniki badań prezentują kluczowe procesy rynkowe, związane z koncentracją w handlu. Jak wynika z przeprowadzonych badań, największym zagrożeniem dla rozwoju handlu hurtowego, są procesy koncentracji poziomej na szczeblu detalu. Koncentracja firm detalicznych prowadzi do skracania się kanałów dystrybucji i bezpośrednich zakupów dokonywanych przez sieci handlowe u producentów, z pominięciem szczebla hurtu. Kolejnym istotnym zagrożeniem dla hurtu jest rozwój handlu internetowego. Pomimo tych zagrożeń, hurtownicy oceniają aktualną sytuację swojej firmy, jako dobrą, co z kolei znajduje potwierdzenie w danych GUS. Wnioski: Zidentyfikowane procesy rynkowe muszą zostać uwzględnione w strategiach działania przedsiębiorstw handlu hurtowego w Polsce. Zdaniem autora, jednym z rozwiązań, które firmy hurtowe powinny zastosować może być wdrożenie opisanej w artykule koncepcji sprzedaży wielokanałowej.
Źródło:
LogForum; 2016, 12, 3; 247-257
1734-459X
Pojawia się w:
LogForum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quad channel software defined receiver for passive radar application
Autorzy:
Pető, T.
Seller, R.
Powiązania:
https://bibliotekanauki.pl/articles/141410.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
DPIS
multichannel receiver
passive radar
PCL
SDR
Opis:
In recent times the growing utilization of the electromagnetic environment brings the passive radar researches more and more to the fore. For the utilization of the wide range of illuminators of opportunity the application of wideband radio receivers is required. At the same time the multichannel receiver structure has also critical importance in target direction finding and interference suppression. This paper presents the development of a multichannel software defined receiver specifically for passive radar applications. One of the relevant feature of the developed receiver platform is its up-todate SoC (System on hip) based structure, which greatly enhance the integration and signal processing capacity of the system, all while keeping the costs low. The software defined operation of the discussed receiver system is demonstrated with using DVB-T (Digital Video Broadcast – Terrestrial) signal as illuminator of opportunity. During this demonstration the multichannel capabilities of the realized system are also tested with real data using direction finding and beamforming algorithms.
Źródło:
Archives of Electrical Engineering; 2017, 66, 1; 5-16
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Millennials’ perspective on multiple distribution channels
Autorzy:
Słowikowska, Inga
Powiązania:
https://bibliotekanauki.pl/articles/611140.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
multichanneling
multichannel behaviour
consumer behaviour
Generation Y, Millennials
Opis:
Theoretical background: The idea of multichanneling gained popularity in the late 1990s mostly due to the development of the Internet. Distribution changed from using single to several channels and integrating them, which allowed consumers to access multiple channels at every stage of the buyer decision process. Using multiple channels is referred to as multi-, cross-, or omni-channelling, depending on the level of channel interaction and integration. Transforming distribution from multi-, to omni-channelling can require important and expensive changes in the organization. In Poland, most of the retailers do not meet the requirements of omnichanneling, which leaves the consumers mostly with the experience of multi-, and cross-channelling distribution.Purpose of the article: The purpose of this article is to explore the consumer journey of Millennials in multichannel shopping by examining the usage of distribution channels by Generation Y and preferences about the delivery of products bought online. The factors that can encourage them to choose online channel and click-and-collect delivery more often are also investigated.Research methods: To test the hypotheses, literature research and quantitative study was implemented using an online survey (CASI). The study involved a group of 266 respondents from Generation Y and was conducted in January 2019. Research results were also compared to the prior research found in the literature.Main findings: Research results show that online channels are more popular for information seeking by Millennials but traditional stores are preferred by them for purchase decisions. There is also diversity in the channels used for purchasing researched group of products, which shows that integrating the channels in selected aspects may provide a more positive buying experience and create loyalty. Aspects differentiating multi- and cross-channels from omnichannels, such as lower prices and special offers in online stores, can increase the usage of online channels. The popularity of mobile devices is not well used in distribution channels – it is more popular to use a store’s website on a smartphone than a mobile application to purchase a product. Generation Y is also more likely to use the effect of ROPO (webrooming) than reversed-ROPO (showrooming). The aspects well known for omnichanneling can increase the popularity of click-and-collect among Millennials.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia; 2019, 53, 1
0459-9586
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio H – Oeconomia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The selected types of activities and motivators of multichannel purchase among the generation Y consumers
Wybrane typy działań i motywów zakupów wielokanałowych wśród konsumentów pokolenia Y
Autorzy:
Delińska, Liwia
Badowska, Sylwia
Powiązania:
https://bibliotekanauki.pl/articles/1058812.pdf
Data publikacji:
2019-02-28
Wydawca:
Polskie Wydawnictwo Ekonomiczne
Tematy:
consumer behaviour
purchase process
multichannel purchase
online purchase
offline purchase
zachowanie konsumenta
proces zakupu
multichannel
zakup online
zakup offline
Opis:
The purpose of this paper is to investigate whether and how the generation Y changes shopping channels in their consumption decision path. Linking the online and offline channels in consumer journey has been evaluated. The first part of the work presents literature review - shopping behaviour patterns among generation Y, online and offline channels in the purchasing process, multichannel and omnichannel perspectives. The second part of the work presents the results of authors' original empirical pilot research on the the young consumers’ selected multichannel purchase activities and motivations to combine and exchang shopping channels. In this study, the selective quota sampling procedure was used. The study covers 235 students of the Faculty of Management at the University of Gdansk in 2017. The results suggest that multichannel purchase activities undertaken by the Y generation concerned a product contact, seeing it as well as buying and collecting it. What’s more both saving time and money are the prerequisites for online shopping. Online and offline retails have to adapt to new forms of shopping that have become more popular among younger consumers. It is reasonable to conclude that multichannel and omnichannel are a challenge for enterprises targeting their offer to consumers belonging to the Y generation.
Celem artykułu jest prezentacja wyników badań dotyczących zmiany kanałów zakupowych podczas procesu podejmowania decyzji zakupowych przez przedstawicieli pokolenia Y. Dokonano analizy przemieszczania się konsumentów pomiędzy kanałami online i offline w trakcie ścieżki zakupowej. W pierwszej części pracy przedstawiono przegląd literatury – wzorce zachowań zakupowych wśród generacji Y, kanały podejmowania decyzji zakupowej online i offline oraz perspektywę multichannel i omnichannel. Druga część pracy przedstawia autorskie wyniki badań pilotażowych, które dotyczą wybranych działań z zakupów wielokanałowych przez młodych konsumentów oraz ich motywów do łączenia kanałów zakupowych. Zastosowano celowo-kwotowy dobór próby. Badanie zrealizowano wśród 235 studentów Wydziału Zarządzania Uniwersytetu Gdańskiego w 2017 r. Wyniki sugerują, że wielokanałowe zakupy realizowane przez pokolenie Y dotyczą kontaktu z produktem, jego obejrzenia, nabycia, jak też odbioru. Co więcej, zarówno oszczędność czasu, jak i pieniędzy są czynnikami motywującymi do zakupów internetowych. Zarówno sprzedawcy online, jak i offline muszą dostosować się do nowych form zakupów, które stały się popularne wśród młodszych konsumentów. Można stwierdzić, iż multichannel i omnichannel stanowią wyzwanie dla przedsiębiorstw kierujących swoją ofertę do konsumentów należących do pokolenia Y.
Źródło:
Marketing i Rynek; 2019, 2; 31-39
1231-7853
Pojawia się w:
Marketing i Rynek
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A modified method for the determination of radioactive isotopes in building raw and construction materials with multichannel gamma spectrometry
Autorzy:
Charewicz, W.
Żebrowski, A.
Walkowiak, W.
Borek, B.
Powiązania:
https://bibliotekanauki.pl/articles/147083.pdf
Data publikacji:
2000
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
building materials
multichannel gamma-ray spectrometry
radioactive isotopes
Opis:
A modified method is presented for the determination of natural and artificial isotopes in building raws and materials using multichannel gamma-ray spectrometry. A procedure is given for the preparation of standards as well as for the determination of radioisotopes content in typical building raws and/or materials. Results of these determinations were compared with those from standard, tri-channel gamma spectrometry described in Instruction No. 234/95 [2] issued by the Institute of Building Technology in Warsaw, Poland.
Źródło:
Nukleonika; 2000, 45, 4; 243-247
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laser-based multichannel fiber optic sensor for multipoint detection of corrosion
Autorzy:
Shahpir, R.
Ghavami, S. S.
Khorsandi, A.
Powiązania:
https://bibliotekanauki.pl/articles/174809.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
optical time domain reflectometry OTDR
multichannel corrosion
optical fiber
Opis:
We report on a multichannel sensor for multipoint corrosion monitoring of an aluminum film, which was corroded by nitric acid as a corrosive solution. The sensor head was a commercial 1x4 optical fiber coupler combined with the optical time domain reflectometry technique. The effects of the concentration and pH of acid on the corrosion rate of the aluminum film are initially studied and characterized. Then, about 100 nm of pure aluminum is coated on the end facets of each fiber channel and reduction of the back reflected signals is simultaneously monitored as a measure of corrosion rate. It is found that the fabricated sensor is very sensitive to the variation of pH as by increasing of the pH up to similar to 13, the corrosion rate of aluminum is raised to similar to 75 millimeter per year. Our experimental results have been verified by the standard immersion test, indicating very good consistency and reliability. Eventually, the sensor is used to trace the corrosion of sea water provided from the Persian Gulf, confirming the validity of laboratory results.
Źródło:
Optica Applicata; 2016, 46, 1; 103-115
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A system for 256-channel in vitro recording of the elect rophysiological activity of brain tissue
Autorzy:
Zoladz, M.
Powiązania:
https://bibliotekanauki.pl/articles/963870.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multichannel measurement systems
neurobiological measurements
application specific integrated circuits
Opis:
A measurement system for 256-channel in vitro recordings of brain tissue electrophysiological activity is presented in the paper. The system consists of the brain tissue life support system, Microelectrode Array (MEA), conditioning Application Specific Integrated Circuits (ASIC’s) for signals conditioning, Digitizer and PC application for measurement data presentation and storage. The life support system keeps brain tissue samples in appropriately saturated artificial cerebrospinal fluid at a very stable temperature. The MEA consists of two hundred and fifty-six 40 μm diameter tip-shaped electrodes. The ASIC’s performs amplification and filtering of the 256-field and action potential signals. The Digitizer performs simultaneous data acquisition from 256 channels 14 kS/s sample rate and 12-bit resolution. The resulting byte stream is transmitted to the PC via USB (Universal Serial Bus). Preliminary tests confirm that the system is capable of keeping the extracted brain tissue active (hippocampal formation slices) and simultaneously to record action potentials, as well as local theta field potentials with very small amplitudes from multiple neurons.
Źródło:
Metrology and Measurement Systems; 2013, 20, 3; 371-384
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
QRouteMe: A Multichannel Information System to Ensure Rich User-Experiences in Exhibits and Museums
Autorzy:
Gentile, A.
Andolina, S.
Massara, A.
Pirrone, D.
Russo, G.
Santangelo, A.
Sorce, S.
Trumello, E.
Powiązania:
https://bibliotekanauki.pl/articles/308473.pdf
Data publikacji:
2012
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
exhibition
integration
multichannel information system
user experience
museums
personalization
Opis:
In this article the QRouteMe system is presented. QRouteMe is a multichannel information system built to ensure rich user experiences in exhibits and museums. The system starts from basic information about a particular exhibit or museum while delivering a wide user experience based on different distribution channels. The organization of the systems' components allow to build different solutions that can be simultaneously delivered on different media. A wide range of media from touch-screen installations to portable devices like smartphones have been used. The used devices can communicate each others to increase the usability and the user experience for the visitors. Another important feature of the system is the definition of an inexpensive auto-localization system based on fiduciary marks distributed all around the building. In this article the system is presented from an architectural and functional point of view. A case study and analysis of experimental results are also provided in a real environment where the system was deployed.
Źródło:
Journal of Telecommunications and Information Technology; 2012, 1; 58-66
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling of thermal tunable multichannel filter using defective metallic photonic crystals
Autorzy:
Gharaati, A.
Zare, Z.
Powiązania:
https://bibliotekanauki.pl/articles/174165.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
photonic crystals
temperature dependent refractive index
multichannel filter
defective mode
Opis:
The transmission spectra of one dimensional metallic photonic crystal containing defects are studied using a transfer matrix method. We consider silver as a defect layer with a refractive index dependent on wavelength and temperature simultaneously. Since the loss factor of silver is the function of temperature, we should find a structure that has sharp transmission peaks to model a filter. We present the structure with a coupled defect. It is found that the number of transmission resonant peaks is equal to the number of coupled defects and they are tunable with temperature and incident angle.
Źródło:
Optica Applicata; 2017, 47, 4; 611-619
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Specjalizowane wielokanałowe układy scalone dla potrzeb odczytu danych z matryc mikroczujników
Application specific integrated circuits for readout of microsensors arrays
Autorzy:
Szczygieł, R.
Gryboś, P.
Powiązania:
https://bibliotekanauki.pl/articles/151154.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
wielokanałowy układ ASIC
szumy
efekty niedopasowania
multichannel ASIC
noise
matching
Opis:
W eksperymentach fizycznych, medycznych, biologicznych, badaniach materiałowych coraz częściej zastosowanie znajdują różnego rodzaju matryce mikroczujników, składające się z setek, a nawet tysięcy elementów detekcyjnych. Efektywna obsługa matryc mikroczujników wymaga, aby każdy z elementów detekcyjnych posiadał swój niezależny tor elektroniki odczytu zapewniający kondycjonowanie sygnału analogowego, jego zamianę na postać cyfrową oraz kompresję zebranych danych. Tego typu rozwiązania są możliwe w technologii VLSI, gdzie elektronika odczytu do w/w matryc mikroczujników jest projektowana i wykonywana w formie wielokanałowych specjalizowanych układów scalonych (ASIC). Jednak na wielokanałowe układy ASIC narzucane są szczególne wymagania dotyczące rozmiarów, pobieranej mocy, minimalizacji szumów oraz jednorodności parametrów poszczególnych kanałów. Ponadto w systemach wielokanałowych istotna staje się szybkość przetwarzania danych i ich dalsza transmisja do systemów nadrzędnych. Artykuł omawia wybrane istotne aspekty projektowania wielokanałowych układów scalonych oraz stosowane rozwiązania dotyczące gromadzenia danych, kompresji i ich sposobów przesyłania do systemów nadrzędnych, które uzależnione są od konkretnej aplikacji.
Nowadays arrays of microsensors are often used in experimental sciences like physics, biology, material science or medical imaging. Effective use of these arrays requires multichannel electronic readout systems. The readout electronics is often made as ASIC (Application Specific Integrated Circuits) which is responsible for analog and digital signal processing. Because of multichannel architecture of the integrated circuit dedicated to the readout of microsensor arrays, there are several important constrains which must be fulfilled during the design process like area and power limitation per single channel, noise minimization and uniformity of analog parameters for all channel. Additionally the digital blocks in a such ASIC obtain a lot of data, which must be compressed, stored and transmitted to data acquisition system. The paper describes important design aspects of multichannel circuit and methods used for data compression.
Źródło:
Pomiary Automatyka Kontrola; 2007, R. 53, nr 9 bis, 9 bis; 727-730
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
64 Channel ASIC for Neurobiology Experiments
Autorzy:
Gryboś, P.
Kmon, P.
Szczygieł, R.
Żołądź, M.
Powiązania:
https://bibliotekanauki.pl/articles/226849.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
low noise amplifier
neural recording
ASIC
multichannel systems
neurobiology experiments
Opis:
This paper presents the design and measurements of 64 channel Application Specific Integrated Circuits (ASIC) for recording signals in neurobiology experiments. The ASIC is designed in 180 nm technology and operates with ± 0.9 V supply voltage. Single readout channel is built of AC coupling circuit at the input and two amplifier stages. In order to reduce the number of output lines, the 64 analogue signals from readout channels are multiplexed to a single output by an analogue multiplexer. The gain of the single channel can be set either to 350 V/V or 700 V/V. The low and the high cut-off frequencies can be tuned in 9 ÷ 90 Hz and in the 1.6 ÷ 24 kHz range respectively. The input referred noise is 7 µV rms in the bandwidth 90 Hz - 1.6 kHz and 9 µ V rms in the bandwidth 9 Hz - 24 kHz. The single channel consumes 200 µW of power and this together with other parameters make the chip suitable for recording neurobiology signals.
Źródło:
International Journal of Electronics and Telecommunications; 2010, 56, 4; 375-380
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
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