77 research outputs found
Kompass : The interactive add-on for Komp
No full textDetta examensarbete har genomförts inom ämnet Teknisk Design med syftet att utveckla en tillvalsprodukt till Komp, datorn med en knapp. Arbetet har utgått från identifierade behov hos användare med nedsatt motorik eller kognitiv förmåga och fokuserat på att öka självständigheten hos målgruppen. Genom behovsstudier, varumärkesanalys och konceptutveckling togs flera idéer fram. Koncepten utvärderades sedan med hjälp av kriterieviktsmetoden och QFD. Det koncept som visade störst potential var en stationär enhet för navigation av Komp. Slutkonceptet, Kompass, möjliggör enkel interaktion med Komp genom sex anpassningsbara genvägs- och navigeringsknappar. Genvägsknapparna kan enkelt bytas ut manuellt och tilldelas nya funktioner via inställningar i Komp-appen. Kompass ansluts till Komp via USB-C och kräver därmed varken laddning eller trådlös uppkoppling.This bachelor's thesis was conducted within the field of Industrial Design Engineering with the aim of developing an add-on product for Komp, a communication device designed for the elderly with limited technical skills. The goal was to increase user independence and accessibility for individuals with reduced motor or cognitive abilities. The design process included user research, brand analysis, and concept development, which resulted in three initial ideas. These concepts were evaluated using the Weighted Criteria Method and QFD, leading to the selection and refinement of the final concept. Kompass enables simple interaction with Komp through six customizable shortcuts and navigation buttons. Kompass is a stationary navigation unit with six customizable shortcut buttons and dedicated navigation controls, which can be configured through the Komp app. It connects to Komp via USB-C and requires no wireless setup or charging. The product is designed to be intuitive, accessible and adaptable to users with cognitive or motor impediments and provides a long-term solution that can evolve with the user’s needs
Interlayer stress absorbing composite (ISAC) for mitigating reflection cracking in asphalt concrete overlays
No full text"This study deals with the design of a composite material which could effectively alleviate/mitigate the problem of reflection cracking in an AC overlay. After reviewing various case histories and having identified the problem areas in the treatments currently in use, a composite material consisting of two geotextile layers containing a thin viscoelastic rubber asphalt layer named, ""Interlayer Stress Absorbing Composite (ISAC)"" was proposed."To approach the design problem of the ISAC system effectively properties of the materials intended to be used in the system were first identified. Various models and laboratory testing procedures were used for this purpose. A Climate-Materials-Structural (CMS) pavement model was used to establish the pavement temperature range in Northern Illinois. A number of geotextiles were selected and tested for their engineering properties. Several samples of rubber asphalt were prepared by blending various ratios of crumb rubber with different types and ratios of asphalt cements. These materials were tested at different temperatures and the effects of temperature and rate of deformation on stiffness were investigated."After having selected the materials suitable for the ISAC system, based on their properties, a prototype ISAC system was fabricated in the laboratory and was then checked against slippage under an overlay with a vehicle making a sharp turn or applying sudden brakes. The computer program ""CIRCLY"" was used for this purpose. Testing equipment was developed to evaluate the interfacial shear strength and laboratory testing was performed to determine the shear strength of the fabricated ISAC layer under an AC overlay. Required stiffens was achieved in the ISAC core material by adding hydrated lime in the rubber asphalt."After completion of the component property testing program, the ISAC layer was fabricated and prepared for laboratory evaluation. A testing device was developed in the laboratory that simulated field conditions to evaluate an AC overlay over a cracked PCC slab with and without an ISAC system. The performance of the ISAC system was evaluated by comparing crack growth in the overlay of a control pavement section with that in an overlay over the ISAC treated PCC slab.Made available in DSpace on 2011-05-07T12:29:42Z (GMT). No. of bitstreams: 2
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iSac: Intimacy based Access Control for Social Network Sites
No full textParticipation in social networking sites has dramatically increased in recent years. Users on social networking sites spend lots of time generating large quantities of various personal content items (eg. diaries, albums, and comments) and browsing these varieties of content everyday. However, existing social networking sites do not provide effective access control mechanisms to assure the privacy of user-generated content. A user's personal content on social networking sites may be exposed to other users without any access control. This paper presents iSac, a novel intimacy-based social access control mechanism on social networking sites. iSac allows a user to make his access control policy on social networking sites according to intimacy degrees of him with respect to other users. iSac will first outline a user's activity profile according to his atomic social activities with respect to his seed friends. Then we adopt Naive-Bayes algorithm to calculate the intimacy degrees and rankings of all the user's friends. A content owner can make his access control policy by assigning a range of intimacy degrees. Users whose intimacy degrees are in the acceptable range can visit the content owner's personal content. Our experiments which use data collected from RenRen in China prove that iSac can effectively differentiate a user's friends by intimacy degrees so as to provide a novel access control mechanism with an improved granularity.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000310381500076&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Computer Science, Theory & MethodsEngineering, Electrical & ElectronicEICPCI-S(ISTP)
A decision theory approach to standing order procurement of NASA reports
No full textExplains various package deal procurement methods including standing order method for library documents. Enumerates different standing order services of NTIS for technical reports. Describes the NASA information system. Discusses and analyses the economy of NASA FS service by applying decision theory approach and considering the various costs as well as saving aspects/advantages. Explains the non-economic factors to be considered in evaluating such a service. Suggests ways of making NASA FS service more beneficial to the library of ISRO Satellite Centre (ISAC)
Allergic phenotypes in patients with respiratory allergy evaluated by microchip ISAC technique
No full textUniverzita Karlova Farmaceutická fakulta v Hradci Králové Katedra biologických a lékařských věd Autor: Bc. Petra Porubová Vedoucí práce: prof. RNDr. Ctirad Andrýs, Ph.D. Název diplomové práce: Senzibilizační profil u pacientů s respiračními formami alergického zánětu hodnocený pomocí multiplexové metody ISAC Klíčová slova: alergický zánět, specifické IgE protilátky, molekulární alergeny, multiplexová metoda, ISAC Cíl: Cílem práce bylo zhodnocení senzibilizačního profilu u pacientů s alergickou rhinitidou a/nebo s astmatem bronchiale a zjištění možných rozdílů mezi pacienty s různou závažností onemocnění. Metody: Pro stanovení specifických IgE protilátek proti 112 alergenním komponentám byla využita metoda ImmunoCAP ISAC. Hodnocený soubor zahrnoval 152 pacientů (57,9 % žen) z alergologické ambulance Ústavu klinické imunologie a alergologie Fakultní nemocnice Hradec Králové. Výsledky: Nejčastějšími alergeny v daném souboru pacientů s respiračními formami alergického zánětu byly komponenty Phl p 1 (68,4 %) a Bet v 1 (65,1 %). Rozdíly v počtu pozitivních a negativních reakcí byly prokázány mezi pacienty s různou závažností alergické rhinitidy. Byly nalezeny korelace mezi počty pozitivních/negativních reakcí a závažností astmatu bronchiale. Nejvyšší hladiny specifických IgE byly naměřeny u komponent...Charles University Faculty of Pharmacy in Hradec Králové Department of Biological and Medical Sciences Author: Bc. Petra Porubová Supervisor: prof. RNDr. Ctirad Andrýs, Ph.D. Title of diploma thesis: Allergic phenotypes in patients with respiratory allergy evaluated by microchip ISAC technique Key words: allergic inflammation, allergen specific IgE, component resolved diagnostics, microchip, ISAC Background: The aim of this diploma thesis was to evaluate the sensitization profile in the group of pacients with allergic rhinitis and/or bronhial asthma and to identify possible differences between patients with different disease severity. Methods: ImmunoCAP ISAC was used to determine specific IgE antibodies against 112 allergen components. The evaluated group included 152 patients (57.9 % women) from the allergology outpatient office of the Department of Clinical Immunology and Allergology, University Hospital Hradec Králové. Results: The most common allergens in this group of patients were the components Phl p 1 (68,4 %) and Bet v 1 (65,1 %). Differences in the number of positive and negative reactions were demonstrated between patients with different severity of allergic rhinitis. Correlations were found between the number of positive/negative reactions and the severity of bronchial asthma. And the...Department of Biological and Medical SciencesKatedra biologických a lékařských vědFaculty of Pharmacy in Hradec KrálovéFarmaceutická fakulta v Hradci Králov
Secure ISAC MIMO systems: exploiting interference with Bayesian Cramér–Rao bound optimization
No full textIn this paper, we present a signaling design for secure integrated sensing and communication (ISAC) systems comprising a dual-functional multi-input multi-output base station that simultaneously communicates with multiple users while detecting targets present in their vicinity, which are regarded as potential eavesdroppers. In particular, assuming that the distribution of each parameter to be estimated is known a priori, we focus on optimizing the targets’ sensing performance. To this end, we derive and minimize the Bayesian Cramér–Rao bound, while ensuring certain communication quality of service by exploiting constructive interference. The latter scheme enforces that the received signals at the eavesdropping targets fall into the destructive region of the signal constellation, to deteriorate their decoding probability, thus enhancing the ISAC’s system physical layer security capability. To tackle the nonconvexity of the formulated problem, a tailored successive convex approximation method is proposed for its efficient solution. Our extensive numerical results verify the effectiveness of the proposed secure ISAC design showing that the proposed algorithm outperforms block-level precoding techniques. © The Author(s) 2025
Know your library : user orientation
No full textIn a recent longitudinal comparative study of card catalogue and OPAC of ISRO Satellite Centre (ISAC) Library, it was sadly noted that despite automation and meticulously developing, updating and maintaining nine databases on OPAC, almost doubling the number of registered members, collection and use of documents over the same period, use of OPAC has not much increased compared to use of card catalogue. It is often speculated that there is substantial decline in general reading habit and use of libraries over a generation. Promoting the use of OPAC (and multiple databases on them) through user education/ orientation instruction programmes was felt again and again. After all, OPAC, like card catalogue, continue to be one of the many means by which users discover bibliographic references of their potential interest. Having faced such a situation, gearing up user education/ orientation programmes particularly to new users and younger generation is much desired.
The purpose of user education is to make the end user searching as easy and as comfortable as possible, to minimise waiting time at the terminal and to avoid resorting to time consuming trial and error mode. Some of the new technologies are pretty easy to use but few can be effectively used without training. The need for training can be ascertained from the signs of novice users sitting in front of the terminal with lots of beeps, moving back and forth or from menu to menu and long periods of inactivity as well as the need expressed by users themselves.
In addition to extensive one-to-one assistance by professional staff and flip charts, new user induction and orientation programmes have been launched with visual animated presentation as well as lecture and discussion. Regular user orientation entitled "Know your library" consists of lecture cum demonstration on using various services followed by a local tour in small groups and distribution of informative brochure “Know your library” and “library user manual”. In the introduction, the presentation highlights the necessity of consumption skills among users, levels of user education and types of information covered in the presentation, a brief look at significant information-behaviour of engineers, display of selected parts of classification scheme followed by the library and finally the digital content and the non-book material collection of the library. Keeping aside common self-explanatory aspects of OPAC, Digital Library and the Internet, the presentation focused on features generally not known to users. Feedbacks from earlier studies on card catalogue and OPAC were also kept in mind. A series of A3-size colour charts with tips for effective use of OPAC, Internet, Digital Library, on-line and other information services were periodically designed and displayed at important places
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