Search results for: assistive device - Bridge of Knowledge

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Search results for: assistive device

Search results for: assistive device

  • ASSISTIVE TECHNOLOGY

    Journals

    ISSN: 1040-0435 , eISSN: 1949-3614

  • A concept of pusher - barge coupling device of two-segment ship for inland waterways and coastal service

    W artykule przedstawiono założenia projektowe i koncepcję rozwiązania konstrukcyjnego oraz napędu i sterowania urządzenia sprzęgającego pchacz i barkę dwusegmentowego statku śródlądowego i przybrzeżnego. Zaprezentowane urządzenie umożliwia zarówno sztywne połączenie, jak i wzajemne kontrolowane wychylanie obu segmentów względem siebie, co w znacznym stopni zwiększa manewrowość, a tym samym bezpieczeństwo żeglugi, zwłaszcza na wąskich...

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  • Disability and Rehabilitation-Assistive Technology

    Journals

    ISSN: 1748-3107 , eISSN: 1748-3115

  • JMIR Rehabilitation and Assistive Technologies

    Journals

    eISSN: 2369-2529

  • Assistive Technology Outcomes and Benefits

    Journals

    eISSN: 1938-7261

  • Journal of Rehabilitation and Assistive Technologies Engineering

    Journals

    ISSN: 2055-6683

  • Selection of pointing device for elders

    W artykule przedstawiono metodykę i sposób akwizycji oraz analizy danych dla doboru optymalnego urządzenia wskazującego, dostosowanego do osób starszych. Przedstawiono wyniki próbnych testów na dwóch grupach - docelowej i referencyjnej oraz skomentowano wyniki.

  • Optoelectronic device for hematocrit measurements

    Publication

    An optoelectronic system for measurements of hematocrit level (HCT) in the whole human blood is presented. Proposed system integrates a dedicated optoelectronic sensor, a microcontroller and a small LCD display in a low cost, battery-powered, handheld device. Chosen method for determining blood hematocrit level is based on optical properties of whole blood in visible and NIR wavelength range. Measurements with the use of proposed...

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  • A macroscopic device for quantum computation

    Publication
    • D. Aerts
    • E. D'Hondt
    • B. D'Hooghe
    • M. Czachor
    • J. Dehaene
    • B. De Moor

    - INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS - Year 2008

    Przeanalizowano mechaniczny model kwantowego układu 2-bitowego. Model jest zilustrowany algorytmem Deutscha i Arvinda.

  • Analysis of noise properties of the optocoupler device

    In the paper the localization of a source of Random Telegraph Signal noise (RTS noise) in optocoupler devices type CNY 17 were defined. The equivalent noise circuit in low frequency noise for these type optocouplers was proposed.

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  • Combined environmental testing device for picosatellites

    Publication

    - Year 2021

    As access to space conditions becomes more available, both technically and economically, scientists’ interest in launching finer and more sophisticated experiments grows. To be qualified for launch, such experiments need to be carefully tested prior to the event. The tests should represent actual launch conditions as closely and in a detailed manner. Typical tests for payload include: vibration tests, thermal and vacuum tests,...

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  • Device for spoofing in global positioning system

    This article describes the device which may be used to generate false GPS signals and emit them into radio communication channel. Such attack is called GPS spoofing. Each GPS receiver which remains in the range of a spoofing device (called spoofer) indicates time and position coordinates which are predetermined by the spoofer’s operator. Spoofing may be used e.g. in order to disable the terrorist group from obtaining correct navigation...

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  • The novel sterilization device: the prototype testing

    Publication

    - Scientific Reports - Year 2023

    Currently, there are numerous methods that can be used to neutralize pathogens (i.e., devices, tools, or protective clothing), but the sterilizing agent must be selected so that it does not damage or change the properties of the material to which it is applied. Dry sterilization with hydrogen peroxide gas (VHP) in combination with UV-C radiation is well described and effective method of sterilization. This paper presents the design,...

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  • Optoelectronic Devices

    Publication

    - Year 2016

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  • Analysis of resistive and inductive heating of railway turnouts

    Elektryczne ogrzewanie rozjazdów kolejowych jest istotnym problemem technicznym i ekonomicznym. Z tych względów potrzebne są badania w celu optymalizacji systemu ogrzewania rozjazdów kolejowych. W artykule przedstawiono analizę porównawczą strat energii podczas ogrzewania rozjazdów kolejowych z wykorzystaniem dwóch różnych metod. Analiza ogrzewania rozjazdów przeprowadzono w programie ANSYS.(Analiza oporowego i indukcyjnego nagrzewania...

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  • A compact smart resistive sensor based on a microcontroller

    Publication

    - Year 2011

    Przedstawiono nowe rozwiązanie inteligentnego czujnika rezystancyjnego bazującego na mikrokontrolerze, w którym czujnik rezystancyjny jest elementem składowym filtra anty-aliazingowego przetwornika A/C. Procedura pomiaru temperatury obejmuje pobudzenie filtra dwoma impulsami prostokątnymi o zadanym czasie trwania oraz próbkowanie jego odpowiedzi czasowej. Następnie na podstawie wartości pomierzonych próbek napięcia wyznaczana jest...

  • Exhaled breath analysis by resistive gas sensors

    Breath analysis has attracted human beings for centuries. It was one of the simplest methods to detect various diseases by using human smell sense only. Advances in technology enable to use more reliable and standardized methods, based on different gas sensing systems. Breath analysis requires the detection of volatile organic compounds (VOCs) of the concentrations below individual ppm (parts per million). Therefore, advanced detection...

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  • New techniques assisting cochlear implants fitting.

    Publication

    - Year 2004

    W referacie przedstawiono metodę telemetrii odpowiedzi neuronalnej (SoE), którą zastosowano w celu oceny amplitudy sygnału, która będzie wywoływała percepcję słuchową poprzez pobudzenie elektrod implantu ślimakowego. Jest to obiektywna metoda wyznaczania skuteczności systemów implantów ślimakowych.

  • Wireless short-range device for wind generators

    Publication
    • M. Adamowicz
    • R. Strzelecki
    • J. Szewczyk
    • L. Lademan

    - Year 2010

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  • MARKETING STRATEGY - SPACE AS A PRODUCT.ARCHITECTURE AS A MARKETING DEVICE.

    Publication

    - Year 2012

    Space has its measurable financial value. From the economic point of view place can be treated as a product that fights for appearing in tourists' and investors' consciousnesses. Space - treated as the object of demand and supply - becomes an element in a marketing game. To reach its maximal value the given space should be competitive to other spaces, from which it wants to stand out. However, in the field of architecture - and...

  • STRUCTURE AND ALGORITHMS OF A DIAGNOSTIC DEVICE IN A WHEELED TRACTOR

    Publication

    - Diagnostyka - Year 2013

    Diagnostic device monitors the tractor’s technical condition and identifies the location of damaged components during operation. The diagnostic device detects and identifies the following types of defects: functional defects (uf) which affect performance, exhaust defects (ue) which increase toxic emissions and fuel consumption, defects that jeopardize driving safety (us), defects that affect engine performance (ud). The key component...

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  • A New Rehabilitation Device for Balance Impaired Individuals

    Publication

    - Year 2019

    In the paper authors present a device designed to improve the rehabilitation process of people with balance impairment. The discussed device (JStep) utilizes a commercially available static standing frame (stander) modified in order to fit force sensing units under the feet and in the pillows around the hips of a patient. While executing rehabilitation tasks, the patient may compensate his balance deficiency by leaning on the pillows...

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  • A Device for Measuring Auditory Brainstem Responses to Audio

    Publication

    Standard ABR devices use clicks and tone bursts to assess subjects’ hearing in an objective way. A new device was developed that extends the functionality of a standard ABR audiometer by collecting and analyzing auditory brainstem responses (ABR). The developed accessory allows for the use of complex sounds (e.g., speech or music excerpts) as stimuli. Therefore, it is possible to find out how efficiently different types of sounds...

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  • Novel Design of an Ocean Wave Power Device

    Publication

    - Key Engineering Materials - Year 2012

    W artykule przedstawiono nowoczesną boję energetyczną o opatentowanej konstrukcji. Omówiono jej konstrukcję oraz przedstawiono problemy konstrukcyjne i badawcze. W ostatniej części artykułu przedstawiono wyniki badań wykonanych na modelu w basenie modelowym.

  • Efficiency of gas mixtures detection by resistive gas sensors

    Publication

    - Year 2014

    Resistive gas sensors are very popular and are commonly used to detect various gases and their mixtures. Theeir main disadvantage is very limited selectivity. Practical use of gas sensors in environenmental applications requires determination of concentration of a few mixed gases at the same time. We would like to present recent results of gas detection improvement by utilizing a single gas sensor and additional measurements to...

  • EFFICIENCY OF GAS MIXTURES DETECTION BY RESISTIVE GAS SENSORS

    Publication

    - Year 2014

    Resistive gas sensors are very popular and are commonly used to detect various gases and their mixtures. Their main disadvantage is very limited selectivity. Practical use of gas sensors in environmental applications (e.g., in sewage systems to protect workers, in air conditioning systems to monitor atmosphere quality) requires determination of concentration of a few mixed gases at the same time. We would like to present recent...

  • Visual and Auditory Attention Stimulator for Assisting Pedagogical Therapy

    Publication

    - Year 2018

    Visual and auditory attention stimulator provides a system developed in order to improve reading skills using simultaneous presentation of text in its visual form and in transformed auditory form accompanied by related movie material. The described research employed 40 children at the age of 8 13 years having difficulties in learning of reading, who were diagnosed as having developmental dyslexia. It was shown that application...

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  • Resistive gas sensors – Perspectives on selectivity and sensitivity improvement

    Publication
    • J. Smulko
    • M. Trawka
    • U. Cindemir
    • C. G. Granqvist
    • C. Duran

    - Year 2016

    Resistive gas sensors are very popular and relatively inexpensive; they can operate at elevated or room temperature for years on end. The main disadvantage of resistive gas sensors is their limited selectivity and sensitivity, but various methods have been applied to improve their behavior. The composition of the porous gas sensing layer, or changes in the sensor’s operating temperature, can enhance the gas detection ability. Furthermore, emerging...

  • Analytical fluctuation enhanced sensing by resistive gas sensors

    Publication
    • R. Macku
    • J. Smulko
    • P. Koktavy
    • M. Trawka
    • P. Sedlak

    - SENSORS AND ACTUATORS B-CHEMICAL - Year 2015

    Resistance fluctuations across polarised resistive gas sensors were studied in detail to evaluate sensor working conditions for detecting methane and ammonia at various concentrations. The 1/f noise component typically dominates other noise sources up to a few kHz and can be utilised to improve gas selectivity when compared with measurements of the sensor DC resistance. The Arrhenius plot was created and the activation energy for...

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  • Noise in semiconductor devices

    Publication

    - Year 2010

    Omówiono typowe źródła szumów występujące w przyrządach pólprzewodnikowych, a mianowicie: cieplne, śrutowe, generacyjno-rekombinacyjne, 1/f, 1/f2, wybuchowe (RTS), lawinowe. Przedstawiono szumowe schematy zastępcze tranzystora bipolarnego, JFET i MOSFET oraz opisano wydajności poszczególnych źródeł szumów. Zasugerowano jak dobierać przyrządy półprzewodnikowe do małoszumowych układów w zakresie małych częstotliwości.

  • IEEE ELECTRON DEVICE LETTERS

    Journals

    ISSN: 0741-3106 , eISSN: 1558-0563

  • Electronic Device Failure Analysis

    Journals

    ISSN: 1537-0755

  • Adaptive acoustic crosstalk cancellation in mobile computer device

    The cancellation of acoustic crosstalk is employed to enhance the stereo image in mobile listening conditions. A practical setup employing a mobile computer is employed. The adaptation of the crosstalk cancellation filter to the position of the listener's head is featured. The measurement evaluating the possibility of practical application of the method are described. The head and torso simulator was used for measurements. The...

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  • Fitting the mobile device characteristics to the user's hearing preferences

    A method for fitting the mobile computer audio characteristics to the user's hearing preferences is proposed. The process consists of two stages: calibration and dynamics processing. During the calibration phase the user performs a loudness scaling test giving their response regarding the perceived loudness. The dynamics processing made on above basis sets the loudness to the most comfortable level. The processing accounts both...

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  • Relationship between semi- and fully-device-independent protocols

    Publication
    • H. Li
    • P. A. Mironowicz
    • M. Pawłowski
    • Z. Yin
    • Y. Wu
    • S. Wang
    • W. Chen
    • H. Hu
    • G. Guo
    • Z. Han

    - PHYSICAL REVIEW A - Year 2013

    We study the relation between semi and fully device independent protocols. As a tool, we use the correspondence between Bell inequalities and dimension witnesses. We present a method for converting the former into the latter and vice versa. This relation provides us with interesting results for both scenarios. First, we find new random number generation protocols with higher bit rates for both the semi and fully device independent...

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  • Validation of atmospheric aerosols parallel sampling in a multifold device

    Publication
    • C. M. Oliveira
    • M. Camoes
    • P. Bigus
    • A. Fachado
    • R. Silva

    - ENVIRONMENTAL MONITORING AND ASSESSMENT - Year 2015

    In this work, particulate matter was collected using an active sampling system consisting of a PM10 (<10 μm) inlet coupled to a multifold device containing six channels, connected to a vacuum pump. Each channel was equipped with a filter holder fitted with adequately chosen filters. The system was fixed on a metallic structure, which was placed on the roof of the laboratory building, at the Faculty of Sciences, in Lisbon. Sampling...

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  • Miniaturization and Automation of an Internally Cooled Coated Fiber Device

    Publication

    - ANALYTICAL CHEMISTRY - Year 2006

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  • Pre-swirl energy saving device in marine application

    This paper covers topics of energy saving device (ESD) with application to marine propulsors. The form of ESD, considered in this paper, consists of fixed lifting foils mounted in front of the screw propeller (the pre-swirl stator/guide vanes). An algorithm for designing propulsion systems, consisting of guide vanes and screw propeller, is presented. The proposed method relies on hybrid lifting line (guide vanes)-lifting surface...

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  • Using wearable device for biomedical signal acquisition and processing

    Publication

    In this paper we present the research conducted on synchronous measurements of biosignals. The experiment was conducted to evaluate the possibility of estimating vital signs based on eye tracking. Method: The eGlasses platform was used for acquisition of ECG, respiration rate, eye and pupil movement and blood pressure. Data were acquired in three 5 min. intervals during which a subject was performing certain tasks. The signals...

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  • Analysis of the Electronic Device Exploitation Process – Research Results

    Publication

    - Journal of KONBiN - Year 2019

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  • A device for measuring heat flux on a rocket skin surface

    Publication

    - Year 2021

    A novel method for measuring heat flux on a surface is presented. It is an extensive upgrade of currently known heat flux sensors used mostly in civil engineering. As the thermal environment of launchers, especially sounding rocket can have an enormous negative effect on payload, careful considerations have to be taken in the process of preparing insulation. Usually, thermal data provided by the launch vehicle manufacturer is limited...

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  • COMPOSITE MATERIAL SELECTION FOR A PATIENT TRANSFER ASSIST DEVICE

    Laminates - layered composites containing at least two elements (matrix and reinforcement) widely used in industry have also found their usage in medicine. Their main feature is the ability to modify the material in order to obtain the required properties. Depending on the needs, we can modify reinforcement, type of resin or the method of bonding substrates. Commonly used fibers are: carbon fiber, glass and aramid fibers; resins...

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  • Setups for measurement of thermal time constant of bolometers and resistive layers

    Publication

    Przedstawiono dwa układy do pomiaru termicznej stałej czasowejbolometrów i warstw rezystywnych, umożliwiające pomiar wartości tego parametru w zakresie od pojedynczych milisekund do kilku sekund. Przedstawiono wyniki pomiarów termicznej stałej czasowej wybranych warstw rezystywnych wykonanych w technologii LTCC z niestechiometrycznych tlenków lantanowo-strontowo-żelazowych oraz bolometru cienkowarstwowego wykonanego w tej samej...

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  • On the sensitivity, selectivity, sensory information and optimalsize of resistive chemical sensors

    Publication
    • L. B. Kish
    • J. Smulko
    • P. Heszler
    • C. G. Granqvist

    - Nanotechnology Perceptions - Year 2007

    Wykorzystano pojęcia teorii informacji do określenia możliwości poprawy selektywności i czujności rezystancyjnych sensorów gazu. Podano ogólne rozważania dotyczące limitu selektywnoœci dla tych sensorów. Porównano iloraz sygnału do szumów oraz pojemność kanału informacyjnego dla sensorów chemicznych wykorzystujących jako sygnał zjawiska fluktuacyjne z klasycznymi sensorami charakteryzowanymi jedną wartością. Ogólne rozważania wsparto...

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  • Evaluation of conductive-to-resistive layers interaction in thick-film resistors

    Publication
    • K. Mleczko
    • Z. Zawiślak
    • A. W. Stadtler
    • A. Kolek
    • A. [. Dziedzic
    • J. A. Cichosz

    - MICROELECTRONICS RELIABILITY - Year 2008

    Spektroskopia szumowa w zakresie małych częstotliwości jest używana do badania oddziaływania warstwy rezystywnej i przewodzącej w wytwarzanych rezystorach grubowarstwowych. Wprowadzono dwa parametry szumowe do określania stopnia tego oddziaływania. Opisano wyniki przeprowadzonych badań oddziaływania warstw z dwutlenku rutenu, rutenku bizmutu z kontaktami ze złota, platyna-złoto, pallad-srebro, od różnych producentów.

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  • Determining the leakage current resistive component by the orthogonal vector method

    Publication

    - Year 2018

    The measurement of the metal – oxide surge arresters (MOSA) leakage current and the analysis of its components is a key diagnostic criterion according to technical standards. During on site MOSA condition assessment, the easy way is based on the measurement only leakage current, without the inconvenient live working measurements of supply voltage. Orthogonal vectors method of determination the resistive leakage current is presented....

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  • Measure small currents without adding resistive insertion loss

    Publication

    - EDN - Year 2011

    Floating current to voltage converter can be inserted in-line with no voltage drop and no need for a ground reference.

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  • Simple Measurement Method for Resistive Sensors Based on ADCs of Microcontrollers

    Publication

    A new, complete measurement method for resistance measurement of resistive sensors for systems based on microcontrollers equipped with analog-to-digital converters (ADCs) is proposed. The interface circuit consists of only four resistors, including a resistive sensor and a reference resistor, connected directly to the microcontroller pins. It is activated only during measurements, which significantly reduces power consumption....

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  • Noise of optoelectronic coupled devices

    Publication
    • A. Konczakowska
    • J. Cichosz
    • S. Galla
    • B. Stawarz

    - Year 2004

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  • Organic light emitting devices

    Publication

    W pracy przedstawiono podstawowe procesy fizyczne zachodzące w organicznych emiterach elektroluminescencyjnych oraz parametry techniczne tego typu układów.

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