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Auswahl der wissenschaftlichen Literatur zum Thema „ANALOG RESOLVER“
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Zeitschriftenartikel zum Thema "ANALOG RESOLVER"
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Yi, Jiliang, Xuechun Zhou, Huabing Tan und Zhongqi Li. „Resolver Decoding Method Using Hilbert Transform and ATO“. Journal of Electrical and Computer Engineering 2021 (04.05.2021): 1–7. http://dx.doi.org/10.1155/2021/5579692.
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Resolvers are widely used in electric vehicles, trains, and other harsh fields because of their robustness. However, the resolver outputs two orthogonal analog signals, which make the resolver decoding either high hardware cost or poor decoding accuracy. A noise robust resolver decoding method using Hilbert transform and angle-tracking observer (ATO) is proposed in this paper. Firstly, Hilbert transform is employed to obtain the modular envelopes of resolver signals. Next, the modular envelopes are filtered, and their quadrants are recognized by the polarity relation of the resolver signals and the modular envelope extreme point. Then, the ideal demodulating signals are gained through the linearization of the envelope zero point. Finally, the improved ATO is used to obtain the rotor angle by iteratively calculating the demodulating signal. The effectiveness of the proposed method is verified by experiments under various rotor speed conditions and compared with other methods in noise immunity. The results show that the proposed method can control the decoding error within 0.5° when the SNR is 30 dB, which provides a high-precision and low-cost decoding scheme for practical applications.
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Lee, Jyh-Jone, und Lung-Wen Tsai. „Torque Resolver Design for Tendon-Driven Manipulators“. Journal of Mechanical Design 115, Nr. 4 (01.12.1993): 877–83. http://dx.doi.org/10.1115/1.2919282.
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Given a set of desired joint torques in an n-DOF tendon-driven manipulator with n + 1 control tendons, the determination of tendon forces is an indeterminate problem. Usually, the pseudo-inverse technique is used to solve for such a problem. In this paper, rather than using the pseudo-inverse technique, an efficient methodology for transforming joint torques (n elements) to motor torques (n + 1 elements) has been developed. This technique, called “torque resolver,” utilizes two circuit-like operators to transform torques between the two different vector spaces. It can be easily programmed on a digital computer or implemented into an analog-circuit system. It is hoped that this technique will make real-time computed-torque control feasible. The technique has been demonstrated through the dynamic simulation of a three-DOF manipulator.
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Dorosinsky, A. Yu. „A study of the error of the octant selector component of an analog-to-digital transducer of the signals of a sine-cosine synchro resolver“. Measurement Techniques 54, Nr. 2 (Mai 2011): 150–56. http://dx.doi.org/10.1007/s11018-011-9698-8.
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Castaldi, Giuseppe, Carlo Rizza, Nader Engheta und Vincenzo Galdi. „Multiple actions of time-resolved short-pulsed metamaterials“. Applied Physics Letters 122, Nr. 2 (09.01.2023): 021701. http://dx.doi.org/10.1063/5.0132554.
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Recently, it has been shown that temporal metamaterials based on impulsive modulations of the constitutive parameters (of duration much smaller than a characteristic electromagnetic timescale) may exhibit a nonlocal response that can be harnessed so as to perform elementary analog computing on an impinging wavepacket. These short-pulsed metamaterials can be viewed as the temporal analog of conventional (spatial) metasurfaces. Here, inspired by the analogy with cascaded metasurfaces, we leverage this concept and take it one step further, by showing that short-pulsed metamaterials can be utilized as elementary bricks for more complex computations. To this aim, we develop a simple, approximate approach to systematically model the multiple actions of time-resolved short-pulsed metamaterials. Via a number of representative examples, we illustrate the computational capabilities enabled by this approach, in terms of simple and composed operations, and validate it against a rigorous numerical solution. Our results indicate that the temporal dimension may provide new degrees of freedom and design approaches in the emerging field of computational metamaterials, in addition or as an alternative to conventional spatially variant platforms.
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Freidhager, Clemens, Martin Heinisch, Andreas Renz, Stefan Schoder und Manfred Kaltenbacher. „Lighthill's analogy applied to a automotive turbocharger compressor“. INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, Nr. 6 (01.08.2021): 307–13. http://dx.doi.org/10.3397/in-2021-1414.
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Computing transient CFD simulations of turbocharger compressors is computationally very demanding. It is of fundamental importance to resolve turbulent structures at the location of their generation and to establish a fine enough grid to allow propagation of the resolved structures. This results in high-resolution grids, existing of more than 20 million cells. Applying Lighthill's analogy, it is possible to only resolve turbulent structures at their location of generation and compute the pressure propagation by using an additional, not that demanding, acoustic grid. This allows using coarser CFD grids in the inlet and outlet section. For transferring Lighthill's source terms from the CFD to the acoustic grid, advanced interpolation algorithms are used. The simulation results are validated by measurements of a cold gas test rig are considered.
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Boyer, Paul L., Stefan G. Sarafianos, Edward Arnold und Stephen H. Hughes. „Selective Excision of AZTMP by Drug-Resistant Human Immunodeficiency Virus Reverse Transcriptase“. Journal of Virology 75, Nr. 10 (15.05.2001): 4832–42. http://dx.doi.org/10.1128/jvi.75.10.4832-4842.2001.
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ABSTRACT Two distinct mechanisms can be envisioned for resistance of human immunodeficiency virus type 1 (HIV-1) reverse transcriptase (RT) to nucleoside analogs: one in which the mutations interfere with the ability of HIV-1 RT to incorporate the analog, and the other in which the mutations enhance the excision of the analog after it has been incorporated. It has been clear for some time that there are mutations that selectively interfere with the incorporation of nucleoside analogs; however, it has only recently been proposed that zidovudine (AZT) resistance can involve the excision of the nucleoside analog after it has been incorporated into viral DNA. Although this proposal resolves some important issues, it leaves some questions unanswered. In particular, how do the AZT resistance mutations enhance excision, and what mechanism(s) causes the excision reaction to be relatively specific for AZT? We have used both structural and biochemical data to develop a model. In this model, several of the mutations associated with AZT resistance act primarily to enhance the binding of ATP, which is the most likely pyrophosphate donor in the in vivo excision reaction. The AZT resistance mutations serve to increase the affinity of RT for ATP so that, at physiological ATP concentrations, excision is reasonably efficient. So far as we can determine, the specificity of the excision reaction for an AZT-terminated primer is not due to the mutations that confer resistance, but depends instead on the structure of the region around the HIV-1 RT polymerase active site and on its interactions with the azido group of AZT. Steric constraints involving the azido group cause the end of an AZT 5′-monophosphate-terminated primer to preferentially reside at the nucleotide binding site, which favors excision.
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Woods, R. C. „Time-resolved measurements using conventional analog network analyzer“. IEEE Transactions on Microwave Theory and Techniques 51, Nr. 6 (Juni 2003): 1781–86. http://dx.doi.org/10.1109/tmtt.2003.812583.
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Jacob, Sajeev Cherian, Kalikivayi Venkateswara Kalyan, Lavanya Kalikivayi und Venkataramana Kalikivayi. „Headache associated with travoprost“. Medical hypothesis, discovery & innovation in optometry 4, Nr. 3 (03.10.2023): 135–40. http://dx.doi.org/10.51329/mehdioptometry183.
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Background: Putative adverse effects of prostaglandin analogs in patients treated for glaucoma include periocular skin darkening, herpes simplex keratitis, cystoid macular edema, iritis, and headaches. Here, we report a case of migraine headache after a travoprost administration and discuss the role of prostaglandin analogs in migraine-like headaches.
Case Presentation: A 70-year-old man visited the hospital complaining of pain, redness, and sensitivity to light for 1 week associated with gradual loss of vision in the right eye after cataract surgery, which had been performed 2 years prior. After the examination, the patient was diagnosed with pseudophakic bullous keratopathy and advised to undergo optical penetrating keratoplasty of the right eye. On postoperative day 3, his intraocular pressure (IOP) was 30 mmHg at 10:00 AM in the right eye. A single dose of 0.004% travoprost was instilled in the right eye on the same day. His IOP decreased to 16 mmHg at 2:00 PM. The next day, he presented with migraine-like headache that had started within 1 h after the instillation the previous night. Unremarkable neurological examination and neuroimaging suggested that travoprost had caused the migraine. Although the headache gradually resolved, it reappeared after the administration of other prostaglandins. Trabeculectomy was performed on the right side. The IOP was controlled, and the headache was resolved.
Conclusions: This case indicates a potential causal relationship between topical prostaglandin analogs and migraine-like headaches, as evidenced by symptom resolution upon discontinuation. However, large-scale studies including control groups are required to prove a causal relationship between topical prostaglandin analog administrations and headache development.
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Praus, Petr, Eva Kocišová, Peter Mojzeš, Josef Štepánek, Franck Sureau und Pierre-Yves Turpin. „Frequency domain fluorescence microspectrometry: Application to cellular uptake and drug distribution“. Spectroscopy 24, Nr. 3-4 (2010): 303–7. http://dx.doi.org/10.1155/2010/581520.
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Time-resolved confocal microspectrofluorometry and fluorescence microimaging were used to monitor how the model antisense oligonucleotide is transported into 3T3 living cells and distributed inside them. Phosphorothioate analog of 15-mer oligothymidylate labeled by ATTO 425 was complexed with Zn(II) 5,10,15,20-tetrakis(4-N-methylpyridyl) porphyrin as an uptake-mediating agent. Homodyne phase-resolved technique based on a high frequency analog modulation of both exciting diode laser and detector image intensifier was used for time-resolved measurements. Decay-time data obtained within a broad range spectral region have provided unique information about the fate of both fluorophores inside the cell.
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Sarault, Keith R., und Gerben Boon. „Distortion-Free Measurements of Analog Circuits by Time-Resolved Emission“. EDFA Technical Articles 11, Nr. 2 (01.05.2009): 6–14. http://dx.doi.org/10.31399/asm.edfa.2009-2.p006.
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Abstract Time-resolved emission (TRE) systems are used in many FA labs for internal timing analysis of digital ICs. In this article, the authors explain how they use TRE systems to diagnose analog circuit failures as well. The key to their success is the use of an asynchronous trigger on the emission detector, which eliminates measurement error due to nonlinear distortion. A case study of an analog amplifier failure caused by a polysilicon short demonstrates the effectiveness of their technique.
Dissertationen zum Thema "ANALOG RESOLVER"
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Andersson, Oliver. „Analoga begränsningar och derasinverkan på kreativa beslut imusikproduktion : Ett analogt arbetssätt“. Thesis, Linnéuniversitetet, Institutionen för musik och bild (MB), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-103115.
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Jag har i denna uppsats undersökt hur begränsningarna av analog utrustning förmusikinspelning, i detta fall en kassettporta studio med fyra kanaler, påverkar beslutoch slutresultat. För att komma fram till ett resultat har jag spelat in, mixat och mastrattre låtar via en Tascam 234-kassettportastudio och annan analog utrustning för att helatiden hålla mig i den analoga domänen. Resultatet som nåddes var att många begränsningar som det analoga arbetssättet gerupphov till kunde lösas genom mer noggrann planering och fasta beslut. Antal kanalerbegränsar antalet mikrofoner som kan användas under varje inspelning, men flermikrofoner är inte alltid bättre. Med uttänkta inspelningstekniker kan ett bra resultatfortfarande uppnås. Även bristen på antalet hårdvaru-verktyg för att bearbeta ljudet göratt beslut måste tas tidigt i processen. Detta är skrämmande till en början men befriandenär rädslan släppt. Dessa beslut blir enklare att ta och styrs av en tydlig vision om vart låten ska. Begränsningarna får användaren att nyttja sina verktyg till fullo, vilket ger kunskap somäven gynnar användningen av moderna digitala verktyg.
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Låbbman, Elizabeth. „"Vad är klockan om en och en halv timme?" : En studie i lärares undervisning i den analoga klockan“. Thesis, Karlstads universitet, Institutionen för matematik och datavetenskap (from 2013), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-74650.
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Reading analogue clocks is a sub-area of mathematics in elementary school that is rarely examined. It is also not clarified in the curriculum. Nevertheless, reading analogue clocks is the basis for calculating time differences. The National Agency for Education explains that measurement of time should be taught. However, the reading of clocks is not explained in the control documents. Reading analog clocks is a complicated process. Different skills and knowledge are required to succeed with a reading. Studies show that presentations of the analog clock tend to look similar in many classrooms. This study aims to investigate how teachers teach reading and time measurement in the analog clock. The theory selected is Williams's theory of image schemes. The method chosen is interview. The main result reveals that level classifications of pupils are common. It also turns out that organizing and building structure around different ways to read the analog clock can lead to students' difficulties in reading the clock correctly. Teaching absolute and relative readings is mixed in such a way that it can lead to confusion for the students. The results may also indicate a lack of knowledge among teachers, about students' misreadings and what they are due to. The result also confirms that even hours and relative clock times are taught through presentations of the positions of the hands. At the same time, teachers are teaching their students, in the passage of time and the movements of the various hands. This is contrary to previous research.Avläsning av analoga klockor är ett delområde inom matematik i grundskolan som sällan undersökts och som saknar förtydligande i läroplanen. Trots detta utgör avläsning av analoga klockor grunden för att kunna räkna med tidsdifferenser. Skolverkets styrdokument förklarar att mätning av tid ska undervisas. Avläsning av klockor finns däremot inte förklarat i styrdokumenten. Avläsning av analoga klockor är en komplicerad process. Det krävs olika förmågor och kunskaper för att lyckas med en avläsning. Studier visar att presentationer av den analoga klockan tenderar att se ut på ett likartat sätt i många klassrum. Denna studie går ut på att undersöka hur lärare undervisar avläsning och tidmätning i den analoga klockan. Den utvalda teorin är Williams teori om bildscheman. Den utvalda metoden är intervju. I det huvudsakliga resultatet avslöjas att nivåindelningar av elever i undervisningen är vanligt. Det visar sig också att organiserandet och uppbyggandet av struktur kring olika sätt att avläsa den analoga klockan, kan leda till elevers svårigheter med att avläsa klockan rätt. Undervisning i absoluta och relativa avläsningar blandas på ett sådant sätt att det kan leda till förvirring för eleverna. Resultaten visar möjligtvis också på en kunskapsbrist bland lärare, om elevers felavläsningar och vad de beror på. I resultatet bekräftas också att jämna timmar och relativa klocktider undervisas genom presentationer av visarnas positioner. Samtidigt undervisar lärare sina elever i tidens gång och de olika visarnas rörelser. Det står i motsats till vad forskning visar.
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Palm, Daniel, und Jonas Lidholm. „Analogt vs digitalt. En studie i huruvida en digital plug-in låter annorlunda än sin analoga förebild“. Thesis, Kungl. Musikhögskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kmh:diva-998.
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Johansson, Jenny. „Skönlitterär fritidsläsning - digital eller analog? : En studie av hur elever på grundskolans senare år förhåller sig till digitala texter respektive analoga texter“. Thesis, Mälardalens högskola, Akademin för utbildning, kultur och kommunikation, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-27500.
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Syftet med denna studie är att undersöka elevers fritidsläsning och om elever föredrar digital eller analog läsning och vad de tror om läsningen i framtiden. Studien kommer även att ge svar på vem som rekommenderar skönlitteraturen. Studien är en kvantitativ undersökning där data samlats in genom 59 enkäter. Resultatet visar att ungefär hälften av eleverna läser på fritiden och populärast var analog läsning. Eleverna föredrar även pappersböcker framför e-böcker och det är oftast familjemedlemmar som rekommenderar litteraturen. Slutsatserna av undersökningen är att pappersböcker även fortsättningsvis kan förväntas ha ett egenvärde i fritidsläsningen, och att det stora mediautbudet inte påverkat fritidsläsningen på ett negativt sätt. Vem som rekommenderar litteraturen till högstadieeleverna har förändrats över tiden. Förr var bibliotek mest förekommande och nu är det familjemedlemmarna.
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Modin, Larsson Lina, und Martina Jonsson. „Dagstidningskonsumtion och hållbarhet: Miljöpåverkan av att läsa dagstidningar analogt jämfört med digitalt : Newspaper consumption and sustainability: Environmental impact of reading analog vs digital newspapers“. Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188639.
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Kommunikationsteknologin befinner sig idag i ett övergångsläge mellan digitala och analoga tekniker. Inte minst påverkar detta dagstidningsindustrin. Samhällets generella uppfattning är att digitala tidningar anses ha låg eller ingen miljöpåverkan i jämförelse med den analoga tidningen. Att minska miljöpåverkan rent generellt ligger i samhällets intresse, därför är kommunikationsteknologiska lösningar under ständig utvärdering vad gäller dess miljöpåverkan och hur denna kan effektiviseras. Syftet med den här undersökningen är därför att analysera olika målgrupper och deras tidningskonsumtion, för att sedan utvärdera den miljömässiga påverkan som den innebär. På så sätt kan vi diskutera huruvida analog eller digital konsumtion är ett miljömässigt bättre alternativ för de studerade målgrupperna. Genom en litteraturstudie kunde vi uthämta teori för att ge grund till uppbyggnad av fältstudie och för vidare analyser av resultaten. Teorin behandlade tidningars livscykler i relation till miljöpåverkan. Utifrån sex semistrukturerade intervjuer formade vi sex fiktiva personas som representerade sex skilda målgrupper, fokuserade kring deras dagstidningskonsumtion. Dessa personas figurerade i ett moget scenario där det var lika vanligt förekommande att läsa den digitala versionen av dagstidningen som den analoga versionen. I diskussionen kunde vi göra rekommendationer i valet av tidningsformat för respektive målgrupp. Dessa var baserade på våra preliminära beräkningar och diskussioner. Slutsatser vi kunde dra var att valet av tidningsformat utifrån det mest miljömässigt gynnsamma var primärt beroende av lästiden, antalet läsar per version, antalet läsare per upplaga, den digitala enhetens energiförbrukning och avfallshantering.Communications technology is currently in a transition phase between digital and analog technologies. Not least, this affects the newspaper industry. Society's general view is that digital magazines are considered to have low or no environmental impact in comparison with the analog newspaper. Reducing the environmental impact is in general interests of the society, therefore communications technology solutions lies under constant evaluation in terms of their environmental impact and how this can be streamlined. The purpose of this study is to analyze different target groups and their newspaper consumption, to then evaluate the environmental impact of it. Thus we can discuss whether analog or digital consumption is a more environmentally favourable option for the studied target groups. Through a literature study, we could retrieve theory to provide a scientific basis for the construction of the field study and further analysis of the results. The theory treated newspapers' life cycles in relation to environmental impact. Based on six semi-structured interviews we formed six fictitious personas representing six distinct target groups, focused on their daily newspapers consumption. These personas figured in a mature scenario where reading the digital and the analog version of the newspaper was equally common. In the discussion we were able to establish recommendations for each target group providing the most favourable newspaper version. These were based on our preliminary calculations and discussions.Conclusions we could draw was that the choice of newspaper version based on environmental benefaction was primarily dependent on reading time, the number of readers per version, the number of readers per edition, the digital unit's energy consumption and end-of-life treatment.
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Hultman, Sophie. „Hur mycket är klockan? : En learning study om relationen mellan undervisning och elevers förmåga att avläsa den analoga klockan“. Thesis, Högskolan i Jönköping, Högskolan för lärande och kommunikation, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-44500.
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Malo, Cid David. „OpenModelica for Analog IC Design“. Thesis, Linköpings universitet, PELAB - Laboratoriet för programmeringsomgivningar, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-70657.
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Modelica is a language supported by Modelica Association. It is a non-proprietary, object-oriented, equation based language to conveniently model complex physical. OpenModelica is an open source environment for the Modelica language supported by Open Source Modelica Consortium (OSMC). The aim of this thesis is the development of a library of models and components for design and simulation of analog integrated circuits and an OMNotebook-based tutorial for an academic purpose as a design tool for an electronics lab. For implementation of this library we got inspired from SPICELib library [2], but we have tried to make it more user-friendly without losing model complexity. The first difference is how analyses are developed. In our library DC, AC and transient variables are calculated for each simulation while in SPICELib you have to instantiate an analysis model and execute it. Also we have included length and width as parameters in most of the components, what is not included in SPICELib. Another difference is the way voltage and current sources are edited which we have tried to do it easier than in SPICELib. Another difference is the way voltage and current sources are edited which we have tried to do it easier than in SPICELib. To add functionality similar to other simulation tools, we have modified a python script that lets you make a parametric sweep, something that was not available in SPICELib. We have used a script already implemented in, which used to simulate a model several times after changing one of the parameters of that model. Using this script as a reference we have adapted it to do those simulations, change the parameter we want after each simulation and finally, plot one of the variables of the model as a function of the parameter that was changed.
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Martin, Johan. „Effekten av virtuell rullbandsdistorsion i musik : Hur upplever lyssnaren digital rullbansemulering?“ Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-14062.
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Många mjukvarutillverkare gör idag digitala produkter menade att emulera analog hårdvara för musiker och ljudingenjörer. Denna undersökning utgick ifrån frågan om hur lyssnare upplever emulering av analoga ljudegenskaper, i form av rullband, jämfört med digitalt ljud fritt från detta. Ett kortare utdrag från ett musikstycke inom genren metal användes för att undersöka detta. En digital mjukvaruplugin avsedd för emulering av analogt rullband växlade på och av under styckets gång för att möjliggöra en jämförelse mellan det analoga och det digitala ljudet. Stycket spelades upp tillsammans med en video, och denna visade en bokstav som växlade mellan A och B samtidigt som rullbandsemuleringen slogs av och på. Ett antal testpersoner fick vid enskilda testtillfällen lyssna på stycket och sedan i en semistrukturerad intervju diskutera de skillnader de kunde höra, om några alls. Resultatet visade att upplevelsen inte påverkades nog för att ge ett klart svar. Detta då de hörbara skillnaderna var mycket små.
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Granath, Nichlas. „LÄROMEDEL + ENGELSKA = SANT? : En studie om engelsklärares läromedelsanvändning“. Thesis, Umeå universitet, Institutionen för tillämpad utbildningsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-185536.
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Läromedel har en viktig roll i skolan, både digitala och analoga. Forskning visar att användandet av läromedel minskar, men att analoga dominerar över digitala i det digitaliserade samhället. Syftet med denna studie är därför att öka kunskapen om hur engelsklärare i den svenska gymnasieskolan förhåller sig till läromedel i sin undervisning. Vidare undersöks förhållningssättet till analoga och digitala läromedel och vad anledningarna till användande av läromedel är. För att ta reda på detta har en enkätstudie utförts bland engelsklärare på gymnasienivå i Sverige. Med en deskriptiv statistisk analys visar resultatet att trots vikten av läromedel enligt styrdokument frångår många lärare användandet av läromedel. Anledningarna till varför man väljer att använda läromedel är främst tidsbesparing och struktur. Orsakerna till varför man väljer att frångå läromedel är främst begränsning. Analoga läromedel används och föredras mer än digitala läromedel, men många kompletterar de båda typerna med varandra. Grunderna till minskat användande av läromedel och olika typer av lärverktyg diskuteras. Huruvida ålder på lärare påverkar användandet av läromedel, både analoga och digitala, samt om hybridprodukter är framtiden vore intressant för vidare forskning.
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Berggren, Wiklund Manne. „Same as it never was : Det analoga fotografiet och dess fält i en digital tid“. Thesis, Umeå universitet, Institutionen för kultur- och medievetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-186421.
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This study examines the culture and values surrounding the analogue camera and the analogue photography today. The aim is to answer the questions of how the field of analogue photography look like? Why it still exist? And what the role of analogue photography in a digital context is? Through qualitive interviews with six persons who practices analogue photography the study examines their field, and reasons for choosing it over digital. Based on theories by Pierre Bourdieu the analysis shows the fields positions of power, and identifies the capitals that are valued and why they are valued. The interviewees describes the benefits of the analogue in relation to digital photography as more valuable and more esthetic. They say that the randomness and imperfections of the analogue has artistic and esthetic qualities and advantages. The study connects this with analogue nostalgia, and Hartmut Rosas theory of resonance. With a theoretical framework based on Zygmunt Bauman and Christopher Lasch the study analyzes analogue photography in a digital context. The study finds that analogue photography is nostalgic in the sense that it is practiced in relation to the digital, and in some cases as a way to escape and oppose digital society. Further the study suggests that when the interviewees uses analogue photography to oppose the digital in favor of the wellbeing of oneself, it could on the other hand be a practice in conformity with modern society despite the interviewees efforts to oppose it.
Bücher zum Thema "ANALOG RESOLVER"
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O'Callaghan, Casey. Perception and Multimodality. Herausgegeben von Eric Margolis, Richard Samuels und Stephen P. Stich. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780195309799.013.0005.
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The article presents some findings concerning multimodality, and the philosophical implications of these findings. One of the findings is that crossmodal illusions show that perception involves interactions among processes associated with different modalities. Patterns of crossmodal bias and recalibration reveal the organization of multimodal perceptual processes. Multimodal interactions obey intelligible principles, they resolve conflicts, and they enhance the reliability of perception. Multimodal processes also demonstrate a concern across the senses for common features and individuals, for several reasons such as the intermodal biasing and recalibration responsible for crossmodal illusions requires that information from sensory stimulation associated with different senses be taken to be commensurable. The commensurable information from different senses shares, or traces to, a common source since conflict resolution requires a common subject matter. One important lesson of multimodal effects is that an analog of the correspondence problem within a modality holds between modalities. Spatio-temporal unity, objectual unity, and integration are tied to the capacity to detect constancies and solve correspondence problems across modalities. Solving crossmodal correspondence problems requires a common modal or multimodal code that is shared among modalities.
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Fiddes, Paul S. Charles Williams and C. S. Lewis. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780192845467.001.0001.
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This study of the literary relationship between Charles Williams and C. S. Lewis during the years 1936–1945 focuses on the theme of ‘co-inherence’ at the centre of their friendship. The idea of co-inherence has long been recognized as an important contribution of Williams to theology, and had significant influence on the thought of Lewis. This account of the two writers’ conviction that human persons ‘inhere’ or dwell both in each other and in the triune God reveals many interrelationships between their writings that would otherwise be missed. It also shows up profound differences between their world views, and a gradual, though incomplete, convergence onto common ground. Exploring the idea of co-inherence throws light on the fictional worlds they created, as well as on their treatment (whether together or separately) of a wide range of theological and literary subjects: the Arthurian tradition, the poetry of William Blake and Thomas Traherne, the theology of Karl Barth, the nature of human and divine love, and the doctrine of the Trinity. This study draws for the first time on transcriptions of Williams’ lectures from 1932 to 1939, tracing more clearly the development and use of the idea of co-inherence in his thought than has been possible before. Finally, an account of the use of the word ‘co-inherence’ in English-speaking theology suggests that the differences between Lewis and Williams, especially on the place of analogy and participation in the human experience of God, might be resolved by a theology of co-inherence in the Trinity.
Buchteile zum Thema "ANALOG RESOLVER"
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Mathie, Alex. „Black Holes and Analogy“. In Synthese Library, 249–76. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-26618-8_14.
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AbstractIt is generally accepted that science sometimes involves reasoning with analogies. Often, this simply means that analogies between disparate objects of study might be used as heuristics to guide theory development. Contemporary black hole physics, however, deploys analogical reasoning in a way that seems to overreach this traditional heuristic role. In this chapter, I describe two distinct pieces of analogical reasoning that are quite central to the contemporary study of black holes. The first underpins arguments for the existence of astrophysical Hawking radiation, and the second underpins arguments for black holes being ‘genuinely’ thermodynamical in nature. I argue that while these are distinct analogical arguments, they depend on one another in an interesting way: the success of the second analogical argument presupposes the success of the first. This induces a tension for those who wish to take black hole thermodynamics seriously, but who are sceptical of the evidence provided for astrophysical Hawking radiation by the results of analogue gravity. I consider three ways to resolve this tension, and show that each fails.
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Proops, Ian. „The Mathematical Antinomies Resolved“. In The Fiery Test of Critique, 245–76. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780199656042.003.0011.
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This chapter identifies two lines of resolution in the mathematical antinomies, which lines, it argues, correspond to two traditional ways of attempting to generate counter-examples to the law of excluded middle. One line involves positing an instance of category clash, the other the suggestion that ‘the world’ is a non-referring singular term. The upshot, in either case, is that the thesis and antithesis are not contradictories but merely contraries (and both are false). The chapter criticizes, and then charitably reformulates, Kant’s indirect argument for Transcendental Idealism. It considers why Kant did not seek to resolve the antinomies by arguing that thesis or antithesis are nonsense. Also discussed are: reductio proofs in philosophy (and Kant’s attitude toward them, which is argued to be more sympathetic than is often supposed), regresses ad infinitum and ad indefinitum; the cosmological syllogism; the sceptical representation; the Lambert analogy, the indifferentists; and the comparison with Zeno.
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Sterne, Jonathan. „The Software Passes the Test When the User Fails It“. In Testing Hearing, 159–86. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780197511121.003.0007.
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Many music technologists have sought to reproduce the sonic signature of analog audio devices—amplifiers, compressors, signal processors, instruments—in the software domain. Assessing the effectiveness of the analog model involves a confusing mix of math, sound, electronics, appearances, and feelings, all of which are negotiated differently by users and designers. Drawing on ethnographic research at major software companies, along with close analysis of the technologies themselves, this chapter argues that “analog modeling” in the digital domain is one of the latest chapters in the long history of hearing tests, for it is in the moment of the listening test that engineers and users attempt to resolve competing epistemologies of sound. The listening test thus offers a privileged point of entry into both the classification and the experience of digital sound technologies.
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Chua, Reginald Mary. „Aquinas, Analogy and the Trinity“. In Oxford Studies in Medieval Philosophy Volume 10, 89–117. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780192871244.003.0003.
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Abstract In this paper I argue that Aquinas’ account of analogy provides resources for resolving the prima facie conflict between his claims that (1) the divine relations constituting the persons are “one and the same” with the divine essence; (2) the divine persons are really distinct, (3) the divine essence is absolutely simple. Specifically, I argue that Aquinas adopts an analogical understanding of the concepts of being and unity, and that these concepts are implicit in his formulation of claims about substance and relation in the Trinity. I then show how Aquinas appeals to key structural features of analogical concepts, notably, the simpliciter/secundum quid characterization, to resolve apparent conflicts between the unity of substance and distinction of relations in the Trinity.
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Allchin, Douglas. „A More Fitting Analogy“. In Sacred Bovines. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190490362.003.0013.
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In our culture no one needs a biology class to learn about “survival of the fittest.” Yet one might need instruction to unlearn the misconceptions engendered by the analogy’s potent imagery. In popular perspectives, this single phrase conjures images of humans—however civilized—as brutish organisms vying for jobs, status, and power. Maybe they also compete for prime mates. The language of “survival” resonates with “survivor” contests on television: “Outwit. Outplay. Outlast.” Mention of the “fittest” implies that physical “fitness” and athletic prowess are ideals. At the same time, the extremeness of reference to only the “fittest” implies that a human’s fate seems to be life versus death, fit versus unfit, winning versus losing. In all, cooperation and coexistence give way to warfare, conflict, and backstabbing gossip: “society, red in tooth and claw,” to adapt Tennyson’s phrase. Mostly, life reduces to competition. Cutthroat competition. Through just one expression, all these interpretations seem to have a biological basis. None of them are scientifically justified. “Survival of the fittest” is not a neutral phrase, idly describing natural selection. Instead, through unintended metaphors the language fosters major misconceptions. One might hope to remedy these many confusions. But how? “Survival of the fittest” seems to describe both organic evolution and human culture. So first, one must carefully distinguish the processes of each, functioning at different levels (essay 6). Second, one needs to understand how ideology can be unduly naturalized (or improperly inscribed in “nature”). The phrase was never purely descriptive. It expressed cultural values (essay 7). Even with both these pitfalls resolved, however, problems may persist because of the very language itself. The connotations of the phrase seem inescapable. Here, I consider the misconceptions latent in each individual term: “survival” and “fit”—as well as the “-est” suffix. That may help us craft a more fitting analogy or catchphrase to describe natural selection. Consider first the implications of the word “survival.” What matters to evolution is differences in survival rate at a population level. Differential survival leads to differential reproduction, the essence of natural selection.
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Remmers, Peter. „The Artificial Nature of Social Robots: A Phenomenological Interpretation of Two Conflicting Tendencies in Human-Robot Interaction“. In Frontiers in Artificial Intelligence and Applications. IOS Press, 2020. http://dx.doi.org/10.3233/faia200902.
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Effects of anthropomorphism or zoomorphism in social robotics motivate two opposing tendencies in the philosophy and ethics of robots: a ‘rational’ tendency that discourages excessive anthropomorphism because it is based on an illusion and a ‘visionary’ tendency that promotes the relational reality of human-robot interaction. I argue for two claims: First, the opposition between these tendencies cannot be resolved and leads to a kind of technological antinomy. Second, we can deal with this antinomy by way of an analogy between our treatment of robots as social interactors and the perception of objects in pictures according to a phenomenological theory of image perception. Following this analogy, human- or animal-likeness in social robots is interpreted neither as a psychological illusion, nor as a relational reality. Instead, robots belong to a special ontological category shaped by perception and interaction, similar to objects in images.
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Aigulim, Bayegizova, und Dadayeva Assiyat. „Boundary Integral Equations of no Stationary Boundary Value Problems for the Klein-Gordon Equation“. In Mathematical Theorems - Boundary Value Problems and Approximations. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.91693.
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The non-stationary boundary value problems for Klein-Gordon equation with Dirichlet or Neumann conditions on the boundary of the domain of definition are considered; a uniqueness of boundary value problems is proved. Based on the generalized functions method, boundary integral equations method is developed to solve the posed problems in strengths of shock waves. Dynamic analogs of Green’s formulas for solutions in the space of generalized functions are obtained and their regular integral representations are constructed in 2D and 3D over space cases. The singular boundary integral equations are obtained which resolve these tasks.
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Hunnekuhl, Philipp. „Kant, Aesthetic Autonomy, and Literary Ethics“. In Henry Crabb Robinson, 71–100. Liverpool University Press, 2020. http://dx.doi.org/10.3828/liverpool/9781789621785.003.0004.
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Chapter three reveals the paradigm shift in Robinson’s theorization of literature that his ‘conversion’ from the empiricism of Locke, Hume, and Godwin to Kant’s critical philosophy prompted. Yet Kant’s notion of aesthetic autonomy – of art’s detachment from the motives of the mind and the causality governing the laws of nature – occasioned an impasse in Robinson’s conceptualization of literature’s ethical relevance. He resolved this in an ingenious move by skilfully locating in Kant’s critical philosophy, and then developing, an analogy between art and morals: the self-contained structure and dynamic of a work of literature find their corresponding parameters in the reader’s mind, in her or his moral compass. On the basis of this analogy, chapter three argues, Robinson conducted his own ‘ethical turn’ away from notions of absolute aesthetic autonomy, and developed the ground-breaking critical principle of ‘Free Moral Discourse’ (Hunnekuhl) that from here onwards underpinned his literary activities. Against the backdrop of various unpublished manuscripts, this chapter discusses Robinson’s articles on Hume and causality, and on Moses Mendelssohn and the Pantheism Controversy, in the Monthly Magazine (1799–1801), as well as his letters ‘On the Philosophy of Kant’ in the Monthly Register and Encyclopaedian Magazine (1802–03).
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Williamson, Timothy. „Interactions between Plain Conditionals and Quantifiers“. In Suppose and Tell, 137–58. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198860662.003.0008.
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First, the role of ‘if’ in articulating instances of universal generalizations is considered: what ‘Every F is a G’ tells us about a given object is ‘If it is an F, it is a G’; the truth-functional interpretation is best placed to fulfil that role. Interpretations on which the conditional has a truth-value gap when its antecedent is false are shown to be less effective for this task. Next, an analogue of the Suppositional Role is suggested for assessing generalizations. Finally, sentences with conditionals under quantifiers such as ‘most’, ‘no’, and ‘usually’ raise problems for the truth-functional interpretation. Some are resolved by reflection on conditional testimony, which tells against supposition-based assessments of the generalizations; other cases are resolved (using an idea of Kratzer’s) by the independently motivated postulate that explicit material under an adverbial quantifier can be reused context-dependently as an implicit restriction of the quantifie
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Grossberg, Stephen. „How a Brain Sees: Neural Mechanisms“. In Conscious Mind, Resonant Brain, 122–83. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780190070557.003.0004.
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Multiple paradoxical visual percepts are explained using boundary completion and surface filling-in properties, including discounting the illuminant; brightness constancy, contrast, and assimilation; the Craik-O’Brien-Cornsweet Effect; and Glass patterns. Boundaries act as both generators and barriers to filling-in using specific cooperative and competitive interactions. Oriented local contrast detectors, like cortical simple cells, create uncertainties that are resolved using networks of simple, complex, and hypercomplex cells, leading to unexpected insights such as why Roman typeface letter fonts use serifs. Further uncertainties are resolved by interactions with bipole grouping cells. These simple-complex-hypercomplex-bipole networks form a double filter and grouping network that provides unified explanations of texture segregation, hyperacuity, and illusory contour strength. Discounting the illuminant suppresses illumination contaminants so that feature contours can hierarchically induce surface filling-in. These three hierarchical resolutions of uncertainty explain neon color spreading. Why groupings do not penetrate occluding objects is explained, as are percepts of DaVinci stereopsis, the Koffka-Benussi and Kanizsa-Minguzzi rings, and pictures of graffiti artists and Mooney faces. The property of analog coherence is achieved by laminar neocortical circuits. Variations of a shared canonical laminar circuit have explained data about vision, speech, and cognition. The FACADE theory of 3D vision and figure-ground separation explains much more data than a Bayesian model can. The same cortical process that assures consistency of boundary and surface percepts, despite their complementary laws, also explains how figure-ground separation is triggered. It is also explained how cortical areas V2 and V4 regulate seeing and recognition without forcing all occluders to look transparent.
Konferenzberichte zum Thema "ANALOG RESOLVER"
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Kumar Singh, Viiendra, und Yashna Sharma. „Designing of Serial Asynchronous to Analog Resolver Format Converter“. In 2021 6th International Conference on Communication and Electronics Systems (ICCES). IEEE, 2021. http://dx.doi.org/10.1109/icces51350.2021.9489231.
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Samareh-TaheriNasab, Sa, Ms KhajueeZadeh, Z. Nasiri-Gheidari und S. Sheikhaei. „A Low-Cost Linearized Analog Resolver-To-DC Converter“. In 2022 30th International Conference on Electrical Engineering (ICEE). IEEE, 2022. http://dx.doi.org/10.1109/icee55646.2022.9827090.
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Lee, Jyh-Jone, und Lung-Wen Tsai. „Torque Resolver Design for Tendon-Driven Manipulators“. In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0298.
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Abstract Given a set of desired joint torques in an n-DOF tendon-driven manipulator with n + 1 control tendons, the determination of tendon forces is an indeterminate problem. Usually, the pseudo-inverse technique is used to solve for such a problem. In this paper, rather than using the pseudo-inverse technique, an efficient methodology for transforming joint torques (n elements) to motor torques (n + 1 elements) has been developed. This technique, called “torque resolver”, utilizes two circuit-like operators to transform torques between the two different vector spaces. It can be easily programmed on a digital computer or implemented into an analog-circuit system. It is hoped that this technique will make real-time computed-torque control feasible. The technique has been demonstrated through the dynamic simulation of a three-DOF manipulator.
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Howell, Max, und Bill Hartshorn. „Rapid Design, Integration and Test of Improved Digital Fuel Control for the LM2500 Gas Turbine Engine“. In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-353.
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This paper describes how Martin Marietta performed rapid design, integration, and test of a Digital Fuel Control (DFC) system for control of shipboard GE LM2500 Gas Turbine Engines. This phase was performed in Orlando, Florida and included real time hardware in the loop (HWTL) testing of the DFC with a simulated engine and test cell. With this approach, all of the DFC hardware and software could be validated before performing control of a real engine. Therefore risk was minimized and the schedule did not depend on availability of an LM2500 engine. The engine and test cell were simulated using the Integrated Systems, Inc. (ISI) AC100 Real Time Controller, which is easily transportable from site to site. The next phase will involve testing the DFC and AC100 with a real LM2500 engine and test cell. The AC100 incorporates parallel digital signal processing and various input/output (I/O) options such as analog to digital (A/D) converters, digital to analog (D/A) converters, logical inputs and outputs, resolver to digital converters, pulse width modulation output, etc. Programs and I/O connections are made using extensive software on a workstation which produces code which is downloaded to the AC100 via Ethernet The programs are developed using a user-friendly, menu-driven graphical language called System Build. An autocode generator converts the system model to C or Ada, which is compiled and downloaded to the AC100 for real time execution.
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Burmer, Christian, Fabian Hopsch und Wolfgang Vermeiren. „Combining Time Resolved Emission and Analog Simulation for Fault Localization“. In ISTFA 2010. ASM International, 2010. http://dx.doi.org/10.31399/asm.cp.istfa2010p0384.
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Abstract In this paper, we describe a fault localization strategy for scan designs based on Time Resolved Photon Emission (TRE) and analog simulation. After characterizing the defect’s electrical footprint using TRE, analog fault simulation is applied. A user - friendly software package with an easy to use interface to scan diagnosis, layout tool and simulator was created.
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Cain, B. J., G. L. Woods, A. Syed, R. Herlein und Toshihiro Nomura. „Analog Circuit Failure Analysis Using Time-Resolved Emission“. In ISTFA 2005. ASM International, 2005. http://dx.doi.org/10.31399/asm.cp.istfa2005p0363.
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Abstract Time-Resolved Emission (TRE) is a popular technique for non-invasive acquisition of time-domain waveforms from active nodes through the backside of an integrated circuit. [1] State-of-the art TRE systems offer high bandwidths (> 5 GHz), excellent spatial resolution (0.25um), and complete visibility of all nodes on the chip. TRE waveforms are typically used for detecting incorrect signal levels, race conditions, and/or timing faults with resolution of a few ps. However, extracting the exact voltage behavior from a TRE waveform is usually difficult because dynamic photon emission is a highly nonlinear process. This has limited the perceived utility of TRE in diagnosing analog circuits. In this paper, we demonstrate extraction of voltage waveforms in passing and failing conditions from a small-swing, differential logic circuit. The voltage waveforms obtained were crucial in corroborating a theory for some failures inside an 0.18um ASIC.
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Borgmann, Gerhard, Christian Burmer und Sébastien Mézière. „Improved Parasitic Fault Modeling for Automatic Analog Fault Simulation“. In ISTFA 2012. ASM International, 2012. http://dx.doi.org/10.31399/asm.cp.istfa2012p0281.
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Abstract Analog simulation combined with Time Resolved Light Emission (TRE) can be used to evaluate different fault possibilities and to isolate the most likely fault candidate. In this paper we will describe an improved fault model derived from parasitic layout extraction.
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Kowzan, Grzegorz, und Thomas K. Allison. „Polarization control of rotationally-resolved 2D infrared spectroscopy“. In International Conference on Ultrafast Phenomena. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/up.2022.w4a.28.
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Recent technological developments are enabling highly sensitive measurements of high-resolution 2D IR gas-phase spectra. In analogy to well-known liquid-phase results, we present polarization sequences that reduce spectral congestion and improve signal separation in gas-phase spectra. We also discuss other unique features of 2DIR gas phase spectra.
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Ravikumar, V. K., G. Ranganathan, S. L. Phoa, J. M. Chin, K. L. Pey, J. K. W. Yang, W. L. Kok und L. S. Koh. „Implementing Time Resolved Laser Assisted Device Alteration Using Pulse on Demand Nanosecond Laser Diode“. In ISTFA 2016. ASM International, 2016. http://dx.doi.org/10.31399/asm.cp.istfa2016p0527.
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Abstract Time-resolved laser assisted device alteration (TR-LADA) has interesting applications to reduce the spatial spread of LADA site, as well as benefit device design debug. This paper describes an implementation using a 1063nm wavelength nanosecond pulse-on-demand laser diode to obtain a timing resolution of 1-2 tester cycles and spatial resolution enhancements to LADA sites. We also present potential capabilities of TR-LADA in the debug of analog circuitry.
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Sienkiewicz, Magdalena, Kevin Sanchez, Luigi Cattaneo, Philippe Perdu, Abdellatif Firiti, Olivier Crepel und Dean Lewis. „Development of Laser-Based Variation Mapping Techniques – Another Way to Increase the Successful Analysis Rate on Analog & Mixed-Mode ICs“. In ISTFA 2009. ASM International, 2009. http://dx.doi.org/10.31399/asm.cp.istfa2009p0278.
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Abstract The failure localization on analog & mixed mode ICs in functional mode (AC signals) has become more and more challenging in the last few years. Due to an increasing integration and complexity of these devices, the number of defects, especially those named “soft”, raised considerably. The classical Dynamic Laser Stimulation (DLS) techniques showed some limitations when applied to analog & mixedmode ICs. The SDL (Soft Defect Localization) technique [1] based on binary output signal allows us to localize only the most sensitive areas. The defect in this type of circuits, which are very sensitive to the laser beam [2], is often characterized by a weaker sensitivity than that of “healthy” regions. Hence, xVM (Variation Mapping) techniques were introduced to map some parameters in an analog way (the different sensitivity levels are visualized). To date, the T-LSIM technique [3], the Delay and the Phase Variation Mapping techniques were published [4, 5]. We have already had some interesting results by using these techniques [6] but not every “soft” defect case study could be resolved in that way. In this paper we propose to look at some different parameters which characterize an analog signal and can be used as an input for laser mapping. By applying a simple setup, without any additional sophisticated tool, we show on a “golden” commercial IC the added value of this analysis. We also deal with amplifying the weak signal variations induced by the laser beam scan which often are hidden by the high signal variations in analog or mixed-mode ICs.