Academic literature on the topic 'Opio'

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Journal articles on the topic "Opio"

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Roush, James, David Biller, and Julie Gervais. "Evaluation of an overlapping pubic and ischiatic osteotomy for the improvement of acetabular ventroversion in dogs: an ex vivo study." Veterinary and Comparative Orthopaedics and Traumatology 29, no. 06 (November 2016): 499–506. http://dx.doi.org/10.3415/vcot-16-01-0018.

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SummaryObjectives: To assess the potential of a new single-session surgical procedure, the overlapping pubic and ischiatic osteotomy (OPIO) for modification of bilateral hip conformation. We hypothesized that OPIO would be simple to perform with currently available surgical equipment, through a single surgical approach, with minimal potential morbidity, and that it would allow adequate simultaneous bilateral improvement of coxofemoral joint conformation in patients at risk of canine hip dysplasia.Methods: The OPIO procedure was performed in the pelves of five large breed canine cadavers. Computed tomography images of each cadaver were compared by measurement of the dorsal acetabular rim angle (DARA), acetabular angle (AA), dorso-ventral sacroiliac ratio (SR), and pubic inlet area before and after OPIO.Results: Coxofemoral joint conformation was improved after OPIO. Postoperative DARA was significantly decreased (mean: –5.09°) and AA was significantly increased (mean: 3.54°) after OPIO. The SR was not significantly different after OPIO, indicating minimal impact on the sacro-illiac joints by the procedure. Pubic inlet dimensions and area were significantly decreased after OPIO, but the overall effect on pelvic inlet area was clinically insignificant.Clinical significance: An OPIO allows some improvement of coxofemoral joint conformation in canine cadavers.
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Salvolini, U. "ESNR Executive Committee Meeting • OPIO." Rivista di Neuroradiologia 13, no. 5 (October 2000): 730. http://dx.doi.org/10.1177/197140090001300510.

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De Miguel Moreno, Pilar. "El amor al veneno. Sobre el mundo simbólico de las drogas." Asclepio 42, no. 2 (December 30, 1990): 111. http://dx.doi.org/10.3989/asclepio.1990.v42.2.561.

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El presente trabajo desarrolla, a lo largo del siglo xix y comienzos del actual, mediante el análisis de textos literarios y médicos relevantes de la época, cómo se han configurado distintas ideas sobre el concepto de placer y displacer relacionados con el consumo de opio, morfina y cocaína. Así, desde los textos de Thomas De Quincey con su exaltación del opio, hasta los textos médicos que perscriben los usos terapéuticos de los distintos compuestos, podemos encontrarnos con la dualidad del destino de las drogas.
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Cantón Álvarez, José Antonio. "Opio y colonialismo: reflexiones sobre el papel del opio en la penetración colonial europea en Asia y China." Estudios de Asia y África 51, no. 2 (May 1, 2016): 391. http://dx.doi.org/10.24201/eaa.v51i2.2175.

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La intención es hacer una revisión de ciertos problemas conceptuales y metodológicos que rodean el estudio del opio en Asia entre los siglos xvi y xix, así como su relación con la dominancia de los imperios coloniales europeos en la región en dicha época. Para ello, se analizarán algunas aportaciones provenientesde campos como la antropología o la “historia global” que pueden facilitar la comprensión del papel que esta droga jugó en la penetración de dichos poderes en Asia oriental y suroriental durante la edad moderna, así como en la aparición del imperialismo en el siglo xix. Se presenta la relación entre el opio y el colonialismo desde una perspectiva histórica, conforme la creciente importancia que esta droga tuvo en las actividades comerciales de diversos actores coloniales europeos en Asia durante el periodo. La base de esta evolución radicó en la mercantilización experimentada por el opio a lo largo de los siglos, la cual evolucionó de forma paralela a la intensificación de la presencia colonial europea en el continente asiático. En este sentido, el opio adquirió una creciente importancia para unos actores, los europeos, que tuvieron que adaptarse a las condiciones en las que las relaciones comerciales se daban en ámbitos geográficos como el subcontinente indio, el Sudeste Asiático y el mar de China meridional; donde China actuaba como el polo de más peso de las redes comerciales existentes en estas regiones, y los mercantes chinos eran los más activos e importantes. Antes de que el opio pasase a jugar un papel decisivo en la despolarización de este escenario comercial, los europeos realizaron un largo proceso de observación de esta mercancía en las redes mercantiles. Dicha observación se inició con la llegada de los portugueses a India, en las primeras décadas del siglo xvi, quienes advirtieron, desde su misma llegada, las posibilidades que una mercantilización productiva de la droga podría abrir para sus actividades comerciales en la región; no obstante, sus aspiraciones de mercantilizar el opio estaban aún lejos de su alcance. Por su parte, los holandeses también se percataron de la creciente importancia de la droga en el comercio entre India y el Sudeste Asiático en el siglo xvii, a raíz de las nuevas formas de consumo de la droga aparecidas en la isla de Java, donde comenzó a fumarse junto con tabaco. Los neerlandeses consiguieron establecer un monopolio comercial de la droga en Batavia, que se convirtió en el principal centro de redistribución en Asia suroriental y oriental; desde allí, los mercaderes chinos exportaron el hábito a China, lo que unido a la conquista de la India noroccidental, en 1753, permitió a los ingleses operar una mercantilización completa de este producto basada en el monopolio y la racionalización de su producción. Sólo entonces el opio se convirtió en una mercancía capaz de transformar las relaciones comerciales en Asia durante el siglo xix.
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Chris, Ellis. "Mistura Cretae Aromata cum Opio BPC." South African Family Practice 53, no. 2 (March 2011): 197. http://dx.doi.org/10.1080/20786204.2011.10874085.

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Pardo, G., J. Remohi, A. Pellicer, and F. Bonilla-Musoles. "Efectos de la heroína, marihuana, LSD y metadona sobre la reproducción." Revista Colombiana de Obstetricia y Ginecología 37, no. 3 (June 27, 1986): 165–82. http://dx.doi.org/10.18597/rcog.1901.

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El uso de los estupefacientes es tan viejo como la propia humanidad .Una descripción del cultivo y preparación del opio no muy diferentes de los métodos modernos han sido hallados en las tablillas asirias que datan del 7000 antes de C. (64).
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Rosei, M. "Spectroscopic features of native and bleached opio-melanins." Biochimica et Biophysica Acta (BBA) - General Subjects 1243, no. 1 (January 18, 1995): 71–77. http://dx.doi.org/10.1016/0304-4165(94)00109-b.

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Thiedemann, Christian, Karin Stiasny-Kolster, and Svenja Happe. "Restless-Legs-Syndrom." Schlaf 01, no. 01 (2012): 19–23. http://dx.doi.org/10.1055/s-0038-1626034.

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Das Restless-Legs-Syndrom (RLS) ist eine häufige Ursache von Schlafstörungen und kann eine relevante Auswirkung auf die Lebensqualität und das psychische Befinden haben. Die Ursachen sind bislang nicht vollständig geklärt. Das dopaminerge System, der Eisenstoffwechsel und das opio iderge System scheinen eine wesentliche Rolle zu spielen. Therapie der Wahl sind Levodopa und Dopaminagonisten, aber auch Antikonvulsiva und Opioide werden zur Behandlung des RLS eingesetzt.
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Santacruz-De León, Eugenio Eliseo, and Víctor H. Palacio-Muñoz. "La adormidera y la producción de opio en Laos y México." Textual, no. 64 (December 2014): 9–24. http://dx.doi.org/10.5154/r.textual.2014.64.001.

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San Deogracias de Diego, Teresa, Berta Fernández Dueñas, and Mercedes Sotodosos Carpintero. "Alcaloides del opio en pan de molde con semillas de amapola." Revista Madrileña de Salud Pública 1, no. 1 (July 11, 2019): 2–6. http://dx.doi.org/10.36300/remasp.2019.001.

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Este trabajo describe las actuaciones realizadas por Técnicos de la Dirección General de Salud Pública sobre una denuncia presentada por una ciudadana que dio positivo a opiáceos en una prueba de control de drogas de la Guardia Civil de Tráfico, tras haber consumido unos sándwiches elaborados con pan con semillas de amapola. Se llevaron a cabo inspecciones de los establecimientos alimentarios implicados, así como toma de muestras y análisis del pan, compro-bando que dicho producto cumple las normas que le son aplicables. Se llevó a cabo la caracterización del riesgo, que indicó que con la cantidad de morfina detectada en el pan sería necesario consumir más de 2 Kg en un día para superar la dosis aguda de referencia (ARfD). La Comunidad de Madrid ha comunica-do estos hechos a la Agencia Española de Seguridad Alimentaria y Nutrición y a las autoridades de tráfico para su consideración de cara a las pruebas de detección de opiáceos.
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Dissertations / Theses on the topic "Opio"

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Nogueira, Thereza Christina Monteiro de Lima. "Estresse e convulsões: participação dos opioides endogenos." reponame:Repositório Institucional da UFSC, 1989. http://repositorio.ufsc.br/xmlui/handle/123456789/75592.

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Tese (doutorado) - Universidade de São Paulo. Departamento de Fisiologia e Biofisica
Made available in DSpace on 2012-10-16T02:39:44Z (GMT). No. of bitstreams: 0Bitstream added on 2013-07-16T17:11:53Z : No. of bitstreams: 1 79070.pdf: 3225953 bytes, checksum: ea81b1737299aba3fa4afaa0e98c7d30 (MD5)
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Permanyer, Ugartemendia Ander. "La Participación española en la economía del opio en Asia Oriental tras el fin del Galeón." Doctoral thesis, Universitat Pompeu Fabra, 2013. http://hdl.handle.net/10803/129731.

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El fin del Galeón de Manila supuso un hecho trascendental en la economía de Asia Oriental. En el caso de la Real Compañía de Filipinas, entonces en ocaso, se vio plenamente mermado su acceso a la plata latinoamericana, que era una de sus bazas principales en sus factorías de Calcuta y Cantón. Esto motivó la reorientación de las actividades privadas de los empleados de la Compañía hacia el comercio del opio, coincidiendo con su estallido, con el apoyo financiero de inversores manileños. El presente trabajo identifica y analiza dichas actividades, que están en la raíz de la destacada firma británica Jardine, Matheson & Co., y las sitúa en el conjunto del comercio europeo en Asia, al que los españoles indudablemente hicieron una importante aportación en un momento clave en la evolución de la economía del opio y del conjunto de la historia de la China moderna.
The end of the Manila Galleon was a highly influential event for East Asian economy. The activities of the then declining Spanish Royal Philippine Company were deeply affected by such event: the Company was deprived, mainly in its factories in Calcutta and Canton, of one of its most important assets, namely the access to Latin American silver. Thus, the Company’s employees redirected their private activities towards the then booming opium business, with the financial support of Manila investors. This study identifies and analyses these activities, which are in the roots of what later became Jardine, Matheson & Co., and places them in the context of the European trade in Asia, to which the Spanish undoubtedly made a very important contribution in an key period of the opium economy and modern China historical development.
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Berg, Elliott Philip. "High-speed focal plane array camera for mid-infrared impulse photothermal radiometry." Thesis, London South Bank University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367903.

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Mow-Lowry, Conor. "Opto-mechanical noise cancellation." View electronic text, 2002. http://eprints.anu.edu.au/documents/disk0/00/00/07/65/index.html.

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Thesis (BSc. (Hons))--Australian National University, 2002.
Available via the Australian National University Library Electronic Pre and Post Print Repository. Title from title screen (viewed Mar. 28, 2003). "A thesis submitted for the degree of Bachelor of Science with Honours in physics at the Australian National University" "November 2002" Bibliography: p. 73-75.
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Kadlec, Kal, and Kal Kadlec. "Parametric Opto-Mechanical Performance Analysis of Mounted Lenses Under Thermal Loading." Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/625904.

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Mounting of lenses in opto-mechanical assemblies can create surface figure errors and refractive index changes through thermal and pre-load stresses. As lenses and barrels change in size under temperature changes, the optical performance degrades due to stress and surface deformations. Currently there is no way of determining the effect of these mechanical perturbations on the system wavefront without performing tedious finite element analysis. Most in-depth opto-mechanical analyses involve case-by-case studies with specific designs while previous general studies fail to take into account the complex geometries. The assumptions made by previous general studies ignore the effects of lens shape. These omissions can have a large effect on the stiffness, stress and surface figure error. A parametric model can combine the best of both an in-depth and general study. By parametrizing the model, a simple analysis can be executed for approximating the environmental-mechanical effects on optical performance. This eliminates the time it takes for an opto-mechanical design to be iterated for an optical or mechanical engineer. This tool could be used for early opto-mechanical design or for finite element analysis verification. The parametric model allows the exploration of the broader design study without confining it to a local design space.
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Edoua, Kacou Charles. "Circuits de photo-réception adaptés très faibles bruits et à grande dynamique." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1008/document.

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Ce travail s'inscrit dans le cadre d'un projet commun soutenu par la DGA (procédure RAPID), le projet Récepteur Optique Hyperfréquences LArge Bande ou ROHYLAB, dont VectraWave fait parti. Ce travail de thèse s'inscrit dans le domaine de la radio-sur-fibre en particulier au niveau de la réception. Nous nous inscrivons dans le contexte des photorécepteurs faible bruit, le but étant d'optimiser l'interface optique-électrique de ceux-ci tout en garantissant une grande dynamique. Après avoir présenté les avantages de la radio-sur-fibre à savoir : hauts débits, robustesse et encombrements, nous présentons les photorécepteurs et les différents paramètres qui les caractérisent. Cette étape nous permet de les comparer entre eux en les regroupant en fonction des techniques de conception utilisées dans la littérature. Cette étape nous permet d'identifier la technique de conception à utiliser. Nous choisissons de concevoir photorécepteur bande étroite dont on viendra élargir la bande. Nous définissons ensuite les paramètres nécessaires à la comparaison des technologies entre elles afin de justifier le choix de la technologie de transistor à utiliser. Nous étudions le photorécepteur en tant que système afin de mettre en évidence l'importance des paramètres présentés précédemment sur les performances de celui-ci. De cette analyse nous proposons une méthode de conception bande étroite liant l'ensemble des grandeurs. Nous montrons aussi comment estimer les performances limites en fonction de la technologie utilisée pour la photodiode et celle de l'amplificateur. Aussi nous montrons l'expression de cercles à densité équivalente de courant de bruit constants et de cercles à transimpédance constants. A partir de la modélisation théorique du photorécepteur et l'expression théorique des grandeurs caractéristiques, nous proposons la mise en œuvre et l'utilisation des outils présentés au chapitre précédent avec un logiciel de conception assisté par ordinateur. Nous montrons la modélisation de composants opto-microondes dans un environnement de simulation électrique. A l'aide de ces outils nous concevons trois photorécepteurs faible bruit et à grande dynamique dans la bande 2,9 GHz - 3,4 GHz. Les objectifs fixés sont : 300 de transimpédance, 5 pA/pHz. Ces circuits ont été simulés sous l'environnement électrique ADS mais aussi sous l'environnement électromagnétique MOMEMTUM. Les trois circuits présentent des performances records en bruit à de 3 GHz vis à vis de l'état de l'art. La réalisation du deuxième circuit conçu permet la caractérisation des photorécepteurs dans la bande 2,9 GHz - 3,4 GHz. Nous validons ainsi la démarche et proposons un circuit compétitif vis-à-vis de l'état de l'art. Dans une dernière section de cette thèse, nous illustrons le fait que cette méthode peut être exploitée sur d'autres technologies. Nous mettons en avant aussi le fait que l'on peut envisager la conception de photorécepteurs autour de 20 GHz. Nous envisageons aussi l'utilisation d'une inductance active pour réaliser des photorécepteurs accordables en fréquence pour des fréquences basses
This work is based on a common project support by the DGA, the project ROHYLAB for “wide band opto-microwave receiver” with Vectrawave . This work aim to optimized the optic-electric interface of a receiver in the radio-over-fiber field to design a low noise and high dynamic receiver. After an overview of radio-over-fiber's avantages such as: high data rates, security and security, we presented different photoreceiver and the figure of merit used to caracterized them. This step allow a comparison of the photoreceiver classified by the design topologies used in order to choose which design methodology we will used in this work. In an other hand, the same analysis is done for the transistor technologies. We presented a study of photoreceiver as a system in order to highlight the impact of main caracteritics on its performances. From this analysis allow to show a narrow band design method which link the caracteristics of the photodiode to the transistor's caracteristics. We also present some design tools such as circles of constant equivalent noise current density and circles of constant transimpedance. From the photoreceiver's theoritical model and the expressions of the main caracteristics, we implement the deisgn tools presented in ADS. In this section we also present the opto-microwave components models. Using this tools, we design three photoreceiver with low noise and high dynamics. This photoreceiver's aims to reach 300 Ohms of transimpedance and 5pA/Hz of noise. This circuits are implemented in ADS's eletrical fields and also in MOMENTUM's fields. All of this circuits appears as a competitive one in terms of noise at 3GHz .From the photoreceiver's design, we realized some cicuirts which permit photoreceiver's caracterization in 2.9 GHz - 3.4 GHz bandwidth. This measurements validate our approach and confirm a competitive circuit in term of noise compare to litterature. In a final sectin of this work, we illustrate an extension of this approach on other technologies. We also highlight a design of a photoreceiver at 20 GHz. In the end, we suggest the using of an active inductor to realize switchable frequency photoreceiver in low frequency
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Vila, i. Planas Jordi. "PDMS-based opto uidic systems." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/284136.

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Al llarg de la tesis, diversos elements òptics i fluidics s’han aconseguit integrar en sistemes optofluidics completament funcionals. La integració d’aquests s’ha realitzat fent servir la tècnica de soft-lithography i el PDMS com material constituent per garantir el baix cost i la felxibilitat dels sistemes LOC. Els elements desenvolupats s’han caracteritzat individualment i els LOCs s’han testat i caracteritzat com a eines per a l’analisis bioquímic per sobrepassar problemes actuals. Es resalta el diseny, optimització, fabricació i caracterització dels elements optics individuals. Els elements òptics es divideixen en dos grups, passius i actius. Els passius són aquells que no necessiten cap font d’energia externa per funcionar. Primerament, els més simples, i.e., lents col·limadores i estructures d’autoalineament, necessàries per crear estructures més complexes. Aquests elements s’havien publicat prèviament, però l’optimització feta així com el desenvolupament d’estructures auxiliars tot fabricat utilitzant la mateixa tecnologia i sense augmentar el passos necessaris doten els elements d’una gran robustesa i ens permeten crear estructures més complexes. Miralls d’aire i lents s’han combinat per formar divisors de feix. El principal problema dels divisors de feix és la desviació entre la intensitat als canals de sortida. Aquest problema indica que pot haver-hi un desalineament en la posició de les fibres, les lents col·limadores o els miralls d’aire. Utilitzant variacions de la tecnologia MIMIC un nou element òptic passiu s’ha dissenyat, fabricat i caracteritzat. PDMS dopat amb 3 pigments diferents s’ha utilitzat per crear filtres amb stopbands al llarg de l’espectr visible. Finalment, un element actiu, un emissor integrat, s’ha redissenyat utilitzant software de simulació òptica. Els resultats suggereixen que hi ha volums morts dins l’estructura i per tant, es proposa una reducció de tamany i un canvi de forma. La integració de molts d’aquests elements més alguns de fluídics es detalla. Primerament, connectors entre mòduls es dissenyen i testegen. L’emissor redissenyat es manufactura i caracteritza. El seu comportament concorda amb les simulacions i suggereig que encara es podria rediu més el volum. Tots els mòduls es fabriquen de dues repliques de PDMS. Cada mòdul és elàstic i pot ser connectat amb els altres en qualsevol substrat, les connexions entre mòduls no són permanents i es poden fer i desfer sense cap coneixement previ sobre microfluidica o LOC. Per tant, el sistema modular té prou flexibilitat per crear LOC a la carta a investigadors sense els coneixements necessaris per crear-los des de zero. Per provar-ho diversos mòduls s’han unit i utilitzat per determinar la concentració de Cristall violeta. Les lents col·limadores ja reportades s’han integrat monolíticament en un generador de microgotes monodisperses. S’han proposat dues configuracions òptiques per possibilitar les mesures en fluorescència i absorbància de les microgotes. Ambdues s’han testejat i comparat amb el set up previ demostrant resultats equiparables. A més, les configuracions proposades poden detectar gotes no etiquetades, una fet que no era possible amb el set up previ, amb la mateixa precisió i fiabilitat. Malgrat tot, degut a les nostres lents col·limadores i els equips de lectura, la velocitat de detecció de gotes està limitada a 160 gotes/s. Finalment, la determinació del medi interior de la gota s’ha demostrat experimentalment per primer cop en un sistema optofluidic. Finalment, s’ha contruit un FCOR comapcte i integrables utilitzant tècniques de soft-lithography i utilitzant únicament PDMS i aire per assegurar baix cost i robustesa. S’han utilitzat phaseguides per crear un FCOR amb un mirall mòbil sense parts mòbils. Aquest LOC és repetitiu i té una llarga durabilitat (no s’aprecia degradació o baixada de rendiment en tot l’espectre visible durant setmanes). Per últim, FCOR s’ha integrat amb dos LOC reportats amb anterioritat per fer mesures en paral·lel de glucosa i lactat amb una única font de llum. Un cop calibrat el sistema, el FCOR permet la mesura de glucosa i lactat amb coherència amb resultats previs. Validant, per tant, el FCOR per anàlisis en paral·lel.
Along the thesis, several optics and fluidics elements are succesfully integrated in fully functional optouidic systems. Integration of these elements using soft-lithography fabrication technique and PDMS as constituent material ensures low-cost, disposable and flexible LOCs systems. Developed elements are individually characterized and LOCs are characterized and tested as (bio)chemical tools to overcome unsolved issues of the present state of the art in LOC applications. Design, optimization, fabrication and characterization of individual optical elements is outlined. Optical elements have been divided in two categories, passive and active elements. Passive elements are those which do not require an energy source to work. Firstly, the most simple elements, i.e., collimation lenses and self-alignment structures, necessary to create more complex structures. Such elements usually were published previously, but our development and optimization of elements as well as auxiliary structures, e.g., stoppers and self-alignment channels, built using a single technology with no increase of fabrication steps, provide a robust approach to create more complex structures. Air mirrors and lenses are combined to create beam splitters. The major issue of the BS is the deviation of output power between channels. This result suggests that some misalignment in the fibre position, the lens collimation or the waveguide geometry has occurred. Using developed MIMIC variations a new passive optical element are designed, fabricated and characterized. PDMS doped with three different pigments are used to create filters with stopbands along the whole visible spectrum. Finally, an active element, an integrated emitter, is redesigned using TracePro simulation software. Simulation results suggest there are dead volumes inside the emitter chamber. Then, size reduction and shape change is proposed. Integration of many of the these optical plus some fluidic elements is explained. Firstly, different connectors between modules are designed and tested. The previously redesigned integrated emitter are manufactured and characterized. Its behaviour matches with simulations results and suggest a further size reduction is not only possible but also recommendable. All the modules are fabricated from two PDMS replicas. Each module is elastic and can be assembled with other modules in any substrate, modules connections are not permanent and can be plug and unplug with no previous knowledge in microfluidics or LOC. Hence, presented modular system have enough flexibility to create LOC on demand to researchers without the background required to design and manufacture LOC systems from scratch. In order to prove it several modules are tested together in a crystal violet concentration determination. Previously reported collimation lenses are monolithically integrated in a monodisperse microdroplets generator. Two different optical configurations have been proposed in order to make possible fluorescence and absorbance measurement of droplets. Both are tested and compared to previous set up with equivalent results. In addition, proposed configurations can detect unlabelled droplets, a feature that was not possible with the previous set up, with the same precision and reliability. However, due to our collimation lenses and readout equipment, the droplet generation rate is limited to 160 drops/s. Finally, screening of droplet inner medium is experimentally proved for first time in optofluidic system. Afterwards, a compact and integrable fluidically controlled optical router (FCOR) is build using soft-lithographic techniques and made entirely of PDMS and air ensuring low-cost and robustness. Phaseguides, has been exploited to create a FCOR with a movable mirror without mobile parts. The LOC is repetitive, and has a good durability (non appreciable degradation or performance deterioration for weeks, in the whole visible spectrum). Finally, FCOR is integrated in a previously reported LOC performing parallel measurements of glucose and lactate with a single light source. After setup calibration, the FCOR allows parallel measurement of glucose and lactate showing good agreement with previous results. Validating then, the FCOR for parallel analysis.
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Gilchrist, J. R. "Opto-thermal transient emission radiometry." Thesis, University of Strathclyde, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381131.

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Zegmout, Hanae. "Echantillonneur opto-electronique femto seconde." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT084.

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Dans un monde de plus en plus connecté, il devient indispensable de trouver des moyens d’augmenter le débit d’informations qu’il est possible de véhiculer et de traiter. Ce besoin impose aux ingénieurs des contraintes plus serrées en termes de bande passante et de fréquence d’horloge des circuits qu’ils conçoivent.Or, les circuits d’horloge en microélectroniques sont limités par leur performance en termes de stabilité de la période d’horloge, i.e., en termes de « gigue d’horloge » ; cette limitation provient du bruit inhérent au circuit des horloges et rend donc le signal échantillonné inexploitable.Un moyen de se libérer de cette contrainte pourrait être de passer par la photonique intégrée. En effet, les horloges optiques, i.e les lasers pulsés, présentent des performances très intéressantes en termes de stabilité ou de gigue en comparaison avec les horloges en microélectroniques: les gigues des horloges optiques sont cinq fois plus faibles que la plus faible gigue d’horloge électronique citée dans la littérature.L’idée principale de cette thèse est de concevoir un circuit d’échantillonnage qui utilise les pulses du laser comme horloge et qui échantillonne un signal électronique. La brique de base du circuit en question est un photoconducteur en Germanium : une résistance en Germanium dont la résistivité varie selon la puissance du signal optique qu’elle reçoit du laser pulsé. Le photoconducteur dans ce cas précis jour le rôle d’un interrupteur piloté par le laser, et connecte l’entrée RF à la capacité d’échantillonnage. Quand l’interrupteur reçoit un pulse de lumière sa résistance chute et le signal RF peut être copié vers la capacité. Dès que le pulse de lumière s’arrête, le photoconducteur en Germanium retrouve sa résistance initiale et déconnecte ainsi l’entrée RF de la capacité qui contient le signal échantillonné.Cette thèse se propose d’étudier la faisabilité d’un tel circuit et la possibilité d’exploiter la performance des lasers en termes de stabilité de l’horloge dans l’échantillonnage d’un signal électrique.Dans le cadre de la thèse, nous avons essayé d’implémenter le circuit de base présenté auparavant et avons rencontré plusieurs défis. D’abord, les valeurs des résistances Off du photoconducteur n’étaient pas assez élevées pour permettre de déconnecter entièrement le signal RF de la capacité d’échantillonnage. Cela est dû à la présence d’un dopage résiduel lié au procédé de fabrication des photoconducteurs. L’utilisation du Germanium implique également que le passage de l’état On à l’état Off du photoconducteur n’est pas instantané, mais est fonction de la durée de vie des porteurs de charge créés suite à l’exposition aux pulses de lumière (de l’ordre de la nanoseconde).Nous avons contourné ces problèmes en utilisant trois méthodes : une nouvelle géométrie des photoconducteurs en Germanium qui permet de maximiser le rapport Roff/Ron (géométrie brevetée), un contre-dopage pour augmenter la résistivité du matériau et finalement un circuit électronique qui permet de re-échantillonner le signal en utilisant une horloge photonique basée sur les pulses du laser. Nous avons également exploré la possibilité de concevoir des horloges photoniques qui présentent une très faible valeur de gigue et dont la longueur du pulse peut être modifiée de manière indépendante de la longueur du pulse laser utilisé pour les générer
As the world becomes more and more connected, the need for higher data throughput becomes increasingly urgent. This implied more creativity from circuit designers to come up with higher bandwidth circuits and faster pace clocks to drive them.However, the traditional microelectronics clock circuits fail short to fulfill the ever-increasing need for higher sampling frequencies because of their inherent noise. The latter renders the sampled data altogether unusable and therefore hinders the efforts towards higher streams of data.Integrated photonics, the optics alternative to microelectronics, may bring an end to this problem. Indeed, when it comes to pulsed lasers, a not that new technology, the optical pulses clocking features a very low noise compared to its microelectronics counterpart, i.e a jitter that is five folds lower than the best literature microelectronics clock.The main idea of this thesis is to design a sampling circuit that uses the laser pulses as a clock, but samples an electronic signal. This circuit design is mainly based on the use of a Germanium photoconductor, i.e, a Germanium resistor that changes its resistance according to the value of the optical signal it receives. This photoconductor plays then the role of a clocked switch and connects the RF input signal to the hold capacitor. When the switch receives a pulse of light, its resistance drops and the signal can be copied to the capacitor, and once the pulse of light is over, the Germanium photoconductor recovers its first resistance value and the input signal node is disconnected from the capacitor that holds the sampled signal.The aim of this thesis is to study the feasibility of such a design and whether or not it allows taking advantage of the very low jitter value of the laser. Within the thesis, we tried to implement the up said design and stumbled upon many challenges. First, the values of the off switch resistance were not high enough to disconnect the hold capacitor from the input node due to the low resistivity of the used Germanium (residual doping). The Germanium implies also that the switching from one resistance value to another is not instantaneous but rather as long as the photo-generated carriers exist, which lasts for at least a nanosecond. We resolved these problems using three methods: a novel geometry of Germanium photoconductors that allows for high Roff/Ron ratios (patented geometry), a counter-doping to increase the resistivity of the material and finally, a re-sampling circuit driven by a photonic clock based on the laser pulses. We also explored the possibility of making very steep-edged clocks with customizable pulse lengths based on the laser pulses
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Soares, Eric. "Syndrome opso-myoclonique et ganglioneurome." Bordeaux 2, 1990. http://www.theses.fr/1990BOR25070.

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Books on the topic "Opio"

1

Gómez, Mariano Esquillor. Opio. Zaragoza: Libros del Innombrable, 2002.

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Tarin, Alberto. Flor de opio. Valencia: A. Tarín, 1994.

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Los crímenes del opio. Barcelona: Roca Editorial, 2015.

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Robles, Joaquin Aguilar. La guerra del opio. Mexico: Coasta-Amic Editores, 1988.

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Madiedo, Rafael Chaparro. Opio en las nubes. [Bogotá]: Colcultura, 1992.

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Palomino, Muñoz Juan. Fe cristiana, opio o liberación?: Una experiencia de evangelización liberadora. Quito: Corporación Editora Nacional, 1997.

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IEEE Computer Society. Technical Council on Software Engineering., ed. Proceedings: International Conference on Software Maintenance, October 17-20, 1995, Opio (Nice), France. Los Alamitos, Calif: IEEE Computer Society Press, 1995.

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Rayssac, Gilles-Laurent. New activities, new jobs: Which development strategies? : proceedings of the OPIO Colloquium 23 and 24 March 1995. Brussels: European Commission, Directorate-General for Employment, Industrial Relations and Social Affairs, 1996.

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Gómez, Alexis. Cabeza de aquiler: Contra la pluma la espuma : poemas 1980-86 ; Opio territorio : contra la pluma la espuma : poemas 1980-86. Santo Domingo, República Dominicana: Taller, 1990.

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Non-Volatile Semiconductor Memory Workshop (23rd 2008 Opio, France). 2008 Joint Non-Volatile Semiconductor Memory Workshop and International Conference on Memory Technology and Design: Proceedings : May 18th-22nd, 2008 Opio, France. Piscataway, NJ: IEEE, 2008.

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Book chapters on the topic "Opio"

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Dey, Puja, and Jitendra Nath Roy. "Opto-spintronics." In Spintronics, 163–84. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0069-2_7.

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Azimova, Shakhnoza S., and Anna I. Glushenkova. "Consolida arvensis Opiz." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 662. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_2185.

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Kimel, Alexey V. "Femtosecond Opto-Magnetism." In Springer Proceedings in Physics, 187–89. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07743-7_59.

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Savill, P. "iTorminaria/i Opiz." In The silviculture of trees used in British forestry, 327–34. Wallingford: CABI, 2019. http://dx.doi.org/10.1079/9781786393920.0327.

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Bassi, Davide, Andrea Boschetti, and Mario Scotoni. "Opto-Thermal Spectroscopy." In Applied Laser Spectroscopy, 215–26. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-1342-7_18.

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Aliverti, A., and A. Pedotti. "Opto-electronic Plethysmography." In Mechanics of Breathing, 47–59. Milano: Springer Milan, 2002. http://dx.doi.org/10.1007/978-88-470-2916-3_5.

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Luecke, Frank. "Opto-mechanical Parts." In Handbook of Laser Technology and Applications, 233–38. 2nd ed. 2nd edition. | Boca Raton : CRC Press, 2021- |: CRC Press, 2021. http://dx.doi.org/10.1201/b21828-15.

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Azimova, Shakhnoza S., and Anna I. Glushenkova. "Hackelia deflexa (Wahlenb.) Opiz." In Lipids, Lipophilic Components and Essential Oils from Plant Sources, 156–57. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-323-7_515.

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Matveev, Boris A. "LED-Photodiode Opto-pairs." In Mid-infrared Semiconductor Optoelectronics, 395–428. London: Springer London, 2006. http://dx.doi.org/10.1007/1-84628-209-8_12.

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Lambsdorff, M., J. Kuhl, E. Lopez, H. Leier, A. Forchel, A. Axmann, R. Osorio, and J. Rosenzweig. "Subpicosecond Opto-Electronic Switches." In Laser/Optoelektronik in der Technik / Laser/Optoelectronics in Engineering, 809–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-48372-1_171.

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Conference papers on the topic "Opio"

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Segura Moreno, Camilo. "La función política del arte a través de la industria cultural." In IV Congreso Internacional Estética y Política: Poéticas del desacuerdo para una democracia plural. València: Editorial Universitat Politècnica de València, 2019. http://dx.doi.org/10.4995/cep4.2019.10504.

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El término industria cultural nos remite directamente tanto a elementos estéticos como políticos. Los cambios materiales que tuvieron lugar en el siglo XIX y XX produjeron un cambio cualitativo en la forma de producir y recibir arte. Frente a algunas posiciones más favorables a estos cambios, como la de Walter Benjamin, Adorno y Horkheimer criticaron los efectos políticos y sociales que esta industria cultural tienen para las sociedades. Como leemos en Dialéctica de la Ilustración, estos nuevos métodos artísticos forman parte del mismo sistema capitalista que rechaza aprovechar la técnica para cuestiones sociales como acabar con el hambre. Partiendo de este análisis, pretendemos mostrar tres consecuencias políticas fundamentales que nos permitirán entender mejor la relación entre estética y política. Por un lado, el ocio como extensión del trabajo, convirtiéndose el primero en el nuevo opio del pueblo. Por otro lado, el papel que la publicidad desempeña en las sociedades, que ayuda a mantener la distancia entre lo que somos y lo que queremos ser, así como convertir la elección de consumo en un sustitutivo de la democracia. Por último, la obligación de estar al día, repetir mecánicamente las palabras que todos pronuncian y, en definitiva, hacer lo que todos hacen, muestra la capacidad de exclusión social de la industria cultural de aquellas personas que no se someten al sistema hegemónico. También se tendrán en cuenta los cambios producidos en los últimos años, en los que el neoliberalismo ha hecho todo lo posible por propagar un arte social, incluso crítico, consiguiendo convertir estas prácticas, que anteriormente podíamos considerar disidentes, en inofensivas para el sistema, lo que Alberto Santamaría ha catalogado como “alta cultura descafeinada”, y que haría referencia a los mecanismos de absorción y asimilación que el capitalismo posee. No obstante, frente a este poder cuasi omnicomprensivo que desempeña la industria cultural, el propio arte será el que nos dé algunas herramientas para combatir al sistema dominante. Si el arte supone una crítica de lo existente, podrá mostrarnos aquello que todavía no es, pero puede llegar a ser. Esto es, mostraremos la función del arte como herramienta crítica frente al orden hegemónico, abriendo nuevas vías y caminos intransitados; en definitiva, su capacidad para, como refiere Eduardo Galeano en “La función del arte/1”, ayudarnos a mirar, tanto lo que ya es como lo que puede llegar a ser.
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Xiao, Peng, Anna J. Cowen, Xinxin Guo, Don O’Driscoll, and Robert E. Imhof. "Opto-thermal in-vivo characterisation of human skin using tuneable OPO laser excitation." In PHOTOACOUSTIC AND PHOTOTHERMAL PHENOMENA. ASCE, 1999. http://dx.doi.org/10.1063/1.58227.

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Tzou, H. S., and B. J. Liu. "Light-Induced Non-Contact Actuation and Control With Photostrictive Actuators." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/vib-3930.

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Abstract Non-contact light activated distributed opto-electromechanical actuators represent a new class of precision distributed actuator which are based on the photodeformation process and controlled by high energy lights, e.g., lasers and ultra-violet lights. Fundamental opto-thermo-electromechancial constitutive relations are discussed and formulations of optically induced control forces and moments introduced. Mathematical modeling and analysis of distributed opto-electromechanical shell actuators are presented. A generic distributed photo-actuation theory is proposed and the closed-loop opto-thermo-electromechancial equations of circular cylindrical shells are derived. The systems equations reveal the couplings among elasticity, photodeformation, pyroelectricity, and thermoelasticity. Active distributed control of flexible cylindrical shells using segmented distributed opto-electromechanical shell actuators are investigated and the control effectiveness is evaluated. Membrane and bending control effects are evaluated. Time history analyses of independent modal control reveal that the Lyapunov control is more effective than the proportional feedback control.
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Dagand, Pierre-Évariste, Dejan Kostić, and Viktor Kuncak. "Opis." In the 4th international workshop. New York, New York, USA: ACM Press, 2008. http://dx.doi.org/10.1145/1481861.1481870.

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Kimel, A. V., A. Kirilyuk, and Th Rasing. "Femtosecond opto-magnetism." In 2007 Quantum Electronics and Laser Science Conference. IEEE, 2007. http://dx.doi.org/10.1109/qels.2007.4431810.

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Vahala, Kerry, and Tobias Kippenberg. "Cavity opto-mechanics." In 2008 Conference on Lasers and Electro-Optics (CLEO). IEEE, 2008. http://dx.doi.org/10.1109/cleo.2008.4551967.

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"Opto electronic devices." In 2009 67th Annual Device Research Conference (DRC). IEEE, 2009. http://dx.doi.org/10.1109/drc.2009.5354976.

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Kimel, Alexey V., Andrei Kirilyuk, and Theo Rasing. "Femtosecond opto-magnetism." In Integrated Optoelectronic Devices 2008, edited by Jin-Joo Song, Kong-Thon Tsen, Markus Betz, and Abdulhakem Y. Elezzabi. SPIE, 2008. http://dx.doi.org/10.1117/12.764466.

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Huang, William, Ye-Sheng Kuo, Pat Pannuto, and Prabal Dutta. "Opo." In SenSys '14: The 12th ACM Conference on Embedded Network Sensor Systems. New York, NY, USA: ACM, 2014. http://dx.doi.org/10.1145/2668332.2668338.

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Suhir, E. "Thermal Stress Modeling in Micro- and Opto-Electronics: Review and Extension." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-43777.

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The role and the attributes of, and the challenges in, predictive modeling of thermal stresses, strains and displacements in micro- and opto-electronic packaging are addressed. Merits, shortcomings and interaction of theoretical and experimental approaches are discussed, as well as the role and the interaction of the analytical (“mathematical”) and the numerical (computer-aided, primarily, finite-element) modeling. We briefly review the published work in the field, with an emphasis on the analytical modeling. The review is based, to a great extent, on the author’s work conducted during his eighteen years tenure with Bell Laboratories at Murray Hill, New Jersey. The “extension part” of the article is dedicated to the role that a probabilistic approach might play in understanding and predicting the effects of the variability in materials properties, structural geometry and loading conditions on the thermal stresses, strains and reliability of micro- and opto-electronic assembiles and structures, subjected to thermal loading. The main message of the article is that a viable and reliable micro- or opto-electronic component or device can be successfully created and delivered, as a product, to the market in a timely fashion only provided that predictive modeling, whether analytical or numerical, is widely and effectively employed. Modeling should be conducted in addition and, preferably, prior to the design effort, experimental investigations and accelerated (product development, qualification or life) testing. In this connection, we would like to point out that predictive modeling is also an essential part of the accelerated life testing methodologies and procedures. Another message is that probabilstic approaches could be very helpful in many problems of physical design of micro- and opto-electronic systems subjected to thermal loading.
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Reports on the topic "Opio"

1

Teetarden, Kenneth J., Jr Stroud, and Charles R. Optics & Opto-Electronic Systems. Fort Belvoir, VA: Defense Technical Information Center, June 1988. http://dx.doi.org/10.21236/ada199570.

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Boyd, Robert W., and G. M. Morris. Optics and Opto-Electronics Systems. Fort Belvoir, VA: Defense Technical Information Center, July 1989. http://dx.doi.org/10.21236/ada212340.

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George, Nicholas. Center for Opto-Electronic Systems Research. Fort Belvoir, VA: Defense Technical Information Center, February 1988. http://dx.doi.org/10.21236/ada195159.

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Lin, Ting-Ting Y. Fault Tolerance in Opto-Electronic Computing. Fort Belvoir, VA: Defense Technical Information Center, January 1992. http://dx.doi.org/10.21236/ada246517.

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Price, Luke. CIE S 026 alpha-opic Toolbox. International Commission on Illumination, March 2020. http://dx.doi.org/10.25039/s026.2018.tb.

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Lin, Ting-Ting Y. Fault Tolerance in Opto-electronic Computing. Fort Belvoir, VA: Defense Technical Information Center, April 1994. http://dx.doi.org/10.21236/ada280219.

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Kotovsky, J. A Micro-Opto-Mechanical Photoacoustic Spectrometer. Office of Scientific and Technical Information (OSTI), October 2008. http://dx.doi.org/10.2172/950094.

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Brandelik, Joseph. Nonlinear Optical (NLO) Polymer Opto-Electronic Devices. Fort Belvoir, VA: Defense Technical Information Center, July 2000. http://dx.doi.org/10.21236/ada384482.

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Seo, Chung-Seok, and Abhijit Chatterjee. Optically Interconnected Intelligent RAM Multiprocessors (OPTO-IRAM). Fort Belvoir, VA: Defense Technical Information Center, October 2004. http://dx.doi.org/10.21236/ada428066.

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George, Nicholas. Center for Opto-Electronic Systems Research Instrumentation Grant. Fort Belvoir, VA: Defense Technical Information Center, February 1988. http://dx.doi.org/10.21236/ada193711.

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