Дисертації з теми "HYBRID LWT"
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RAWAT, URVASHI. "INFRARED AND VISIBLE IMAGE FUSION USING HYBRID LWT AND PCA METHOD." Thesis, DELHI TECHNOLOGICAL UNIVERSITY, 2021. http://dspace.dtu.ac.in:8080/jspui/handle/repository/18907.
Повний текст джерелаPodes, Christopher. "AC/DC: Let There Be Hybrid Cooling." Scholar Commons, 2010. http://scholarcommons.usf.edu/etd/3434.
Повний текст джерелаCheng, Ming. "Lot streaming in a two-stage assembly system and a hybrid flow shop." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/77197.
Повний текст джерелаPh. D.
Moretti, Paul. "Performances, modélisation et limites d'un procédé à lit fluidisé associant culture libre et fixée (IFAS) pour le traitement du carbone et de l'azote des eaux résiduaires." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10214/document.
Повний текст джерелаMotivated by the increasingly demanding discharge consents and by the need to improve overall treatment capacity, water authorities are uninterruptedly examining better performing and more compact wastewater treatment technologies. Thanks to its compactness and to its capacity to treat both organic matter and nitrogen at an affordable cost, the IFAS process represents an attractive addition to improve retrofitting-activated sludge plants performance. The main objective of this thesis is to optimize IFAS process with regards to key operation parameters such as dimensioning, F/M ratio by combining experimental and mathematical modelling approaches. A 3 m3 pilot IFAS fed with raw wastewater was operated at the experimental hall of La Feyssine wastewater treatment plant, Villeurbanne, for a period of 2 years. The IFAS process was separated in 3 tanks to treat organic matter and total nitrogen separately (anoxic/aerobic, suspended/aerobic IFAS). The experimental study was divided in 7 periods with different steady state operation conditions each. The feasibility of nitrification at steady F/M ratios (between 0,1S to 0,30 kgBODS/kgMLVSS/d), at constant temperatures (between 10 - 22°C) and at different oxygen supply rates was investigated. TSS in mixed liquor were maintained at 2,3 gMLTSS/L and oxygen concentration between 2 to 6 mgO2/L. Biofilm mass and combined nitrification capacity of biofilm and mixed liquor (NPRmax) were measured on a weekly basis. The removal performance was up to 90% for nitrogen and carbon treatment with a maximal F/M ratio of 0,30 kgBODS/kgMLVSS/d between 16°C to 24 °C. The biofilm was able to nitrify 0,90 gN/m2/d (NPRmax) depending on the oxygen concentration in the mixed liquor (diffusional limitation). Under the operating conditions tested in this study, biofilm was responsible for 40 to 70% of NOx-N production in IFAS reactor during nitrification. Decreasing the MLSRT to less than 4 days limits the growth of autotrophic bacteria in the mixed liquor but does not halt it completely
Markowski, Adria Elizabeth. "Planning for Army Force Generation Using Lot Streaming, and Extensions." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/40346.
Повний текст джерелаPh. D.
Valaškevičius, Šarūnas. "Simulation tool for hybrid process algebras." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100615_084732-33186.
Повний текст джерелаHibridinė sistema yra sistema, sudaryta iš laike tolydžios evoliucijos ir diskrečių įvykių. Hibridinių procesų algebros pagalba tokias sistemas galima apibrėžti ir analizuoti dar prieš sukuriant galutinį produktą. Tuo tarpu simuliacija yra dažnai naudojama kaip patogus būdas geresniam sistemos evoliucijos suvokimui ir jos potencialių silpnybių identifikavimui. Šiuo darbu siekiama sukurti bendrą architektūrą hibridinių procesų algebrų simuliavimo įrankiui bei sukurti praktinę priemonę – simuliatorių, skirtą Elgsenos Hibridinių Procesų Algebrai (angl. Behavioural Hybrid Process Calculus – BHPC). Siekiant įgyvendinti šį tikslą, buvo sudarytas užduočių sąrašas, įtraukiant į jį kelių hibridinių procesų algebrų operatorių analizę, nesudėtingai plečiamos programos architektūros sukūrimą, įvedimo kalbos, gebančios aprašyti BHPC procesus, apibrėžimą bei programinio simuliatoriaus sprendimo įgyvendinimą. Hibridinių sistemų evoliucijos vaizdavimui buvo sukurtas programinis sprendimas, naudojantis Pranešimų Sekos Grafiko (angl. Message Sequence Plots) vaizdavimo tipą grafiniam hibridinės evoliucijos atvaizdavimui, kuris suteikia galimybę patogiai apžvelgti ir analizuoti daugumą hibridinių sistemų evoliucijų. Šiuo metu sukurti simuliavimo ir vaizdavimo įrankiai gali būti naudojami praktikoje, tuo pačiu renkant vartotojų patirtį tolesniam jų tobulinimui. Įrankių tobulinimo aspektai turėtų būti nuolatos kaupiami ir įgyvendinami siekiant ilgalaikio šio darbo tikslo – suburti augančią... [toliau žr. visą tekstą]
Ringienė, Laura. "Hybrid neural network for multidimensional data visualization." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140912_140117-42267.
Повний текст джерелаŠio darbo tyrimų sritis yra duomenų tyryba remiantis daugiamačių duomenų vizualia analize. Tai leidžia tyrėjui betarpiškai dalyvauti duomenų analizės procese, geriau pažinti sudėtingus duomenis ir priimti geriausius sprendimus. Disertacijos tikslas yra sukurti metodą tokios duomenų projekcijos radimui plokštumoje, kad tyrėjas galėtų pamatyti ir įvertinti daugiamačių taškų tarpgrupinius panašumus/skirtingumus. Šiam tikslui pasiekti yra pasiūlytas radialinių bazinių funkcijų ir daugiasluoksnio perceptrono, turinčio ,,butelio kaklelio“ neuroninio tinklo savybes, junginys. Naujas tinklas naudojamas vizualiai daugiamačių duomenų analizei, kai atidėjimui plokštumoje arba trimatėje erdvėje taškai gaunami paskutinio paslėpto neuronų sluoksnio išėjimuose, kai į tinklo įėjimą paduodami daugiamačiai duomenys. Šio tinklo ypatybė yra ta, kad gautas vaizdas plokštumoje labiau atspindi bendrą duomenų struktūrą (klasteriai, klasterių tarpusavio artumas, taškų tarpklasterinis panašumas) nei daugiamačių taškų tarpusavio išsidėstymą.
Treideris, Marius. "Formation and investigation of hybryd nanostructures." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20111102_110700-00011.
Повний текст джерелаPastarąjį dešimtmetį, intensyviai vystantis nanotechnologijoms, ženkliai išaugo technologinių metodų, įgalinančių suformuoti darinius, kuriuose elementų dydžiai būtų tarp 1 ir 100 nm, paieška. Šiai specifinei nanostruktūrinių medžiagų grupei skiriamas ypatingas dėmesys dėl naujų fizikinių reiškinių ir ypač - praktinių taikymų, kuriuos atveria šie dariniai. Šiame darbe aptariamos elektrocheminės technologijos, skirtos kontroliuojamos morfologijos porėtojo silicio formavimui. Suformuoti hibridiniai por-Si dariniai su metalais. Sukurta biomolekulių įterpimo į porėtuosius silicio darinius technologija bei tirta biomolekulių sąveika su kietakūniais padėklais. Nagrinėjami GaP nanodarinių formavimo elektrocheminio ėsdinimo būdu dėsningumai bei jų taikymo galimybės dujų sensoriuose. Įsisavinta nanoporėtųjų dielektrinių terpių ir hibridinių nanodarinių formavimo technologija bei tirtos jų savybės.
Singh, Sanchit. "Modeling, Analysis, and Algorithmic Development of Some Scheduling and Logistics Problems Arising in Biomass Supply Chain, Hybrid Flow Shops, and Assembly Job Shops." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/91466.
Повний текст джерелаDoctor of Philosophy
In this work, we organize our research efforts in three broad areas - Biomass Supply Chain, Hybrid Flow Shop, and Assembly Job Shop, which are separate in terms of their application but connected by scheduling and logistics as the underlying functions. For each of them, we formulate the problem statement and identify the challenges and opportunities from the viewpoint of mathematical decision making. We use some of the well known results from the theory of optimization and linear algebra to design effective algorithms in solving these specific problems within a reasonable time limit. Even though the emphasis is on conducting an algorithmic analysis of the proposed solution methods and in solving the problems analytically, we strive to capture all the relevant and practical features of the problems during formulation of each of the problem statement, thereby maintaining their applicability. The Biomass Supply Chain pertains to the production of fuel grade ethanol from naturally occurring biomass in the form of switchgrass. Such a system requires establishment of a supply chain and logistics network that connects the production fields at its source, the intermediate points for temporary storage of the biomass, and bio-energy plant and refinery at its end for conversion of the cellulosic content in the biomass to crude oil and ethanol, respectively. We define the components and operations necessary for functioning of such a supply chain. The Biomass Logistics Problem that we address is a strategic cost analysis for setup and operation of such a biomass supply chain network. We focus our attention to a region in South Central Virginia and use the detailed geographic map data to obtain land use pattern in the region. We conduct survey of existing literature to obtain various transportation related cost factors and costs associated with the use of equipment. Our ultimate aim here is to understand the feasibility of running a biomass supply chain in the region of interest from an economic standpoint. As such, we represent the Biomass Logistics Problem with a cost-based optimization model and solve it in a series of smaller problems. A Hybrid Flow Shop (HFS) is a configuration of machines that is often encountered in the flexible manufacturing systems, wherein a particular station of machines can execute processing of jobs/tasks simultaneously. In our work, we approach a specific type of HFS, with a single machine at the first stage and multiple identical machines at the second stage. A batch or lot of jobs/items is considered for scheduling over such an HFS. Depending upon the area of application, such a batch is either allowed to be split into continuous sections or restricted to be split in discrete sizes only. The objective is to minimize the completion time of the last job on its assigned machine at the second stage. We call this problem, Hybrid Flow Shop Scheduling Problem, which is known to be a hard problem in literature. We aim to derive the results which will reduce the complexity of this problem, and develop both exact as well as heuristic methods in order to obtain near-optimal solution to this problem. An Assembly Job Shop is a variant of the classical Job Shop which considers scheduling a set of assembly operations over a set of assembly machines. Each operation can only be started once all the other operations in its precedence relationship are completed. Assembly Job Shop are at the core of some of the highly competitive manufacturing facilities that are principled on the philosophy of Mass Customization. Assuming an inherent nature of demand uncertainty, this philosophy aims to achieve ‘economy of scale’ together with flexibility to produce a variety of products for the customers while minimizing the delivery lead times simultaneously. We incorporate some of these challenges in a concise framework of production scheduling and call this problem as Stochastic Demand Assembly Job Scheduling Problem. We design a novel methodology that is geared towards achieving the set objectives and propose an effective algorithm for efficient computation.
Furlan, Marcos Mansano. "Métodos heurísticos para o problema de dimensionamento de lotes multiestágio com limitação de capacidade." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-16052011-162401/.
Повний текст джерелаThe lot-sizing problem determines a production plan, which supports the decision making, in the medium term, at the industrial environment. This production plan indicates the amounts of each item to be produced in each period of the planning horizon, according to a given objective and satisfying customer\'s demand. Diverse solution methods have been proposed in the literature, considering the difficulty of solving some problem classes and the need of methods to generate solutions quickly. In this work, we develop matheuristics (LP-and-fix, relax-and-fix and fix-and-optimize), one metaheuristic (bees algorithm) and two hybrid methods, used to solve two different multilevel capacitated lot-sizing problems. We also consider the use of three different formulations of the literature to verify the influence of each one on the solutions approaches. The computational results show that the matheuristics proved to be efficient, but usually limited to local optima, while the hybrid methods could escape from these local optima, using concepts of bees algorithm to do this. Additionally, we test the effect of a tight formulation on the solutions approaches, demonstrating that LP-based heuristics can obtain further advantages from this type of formulation, but other approaches can take these advantages, depending on the problem addressed
Champagnat, Ronan. "Supervision des systèmes discontinus : définition d'un modèle hybride et pilotage en temps-réel." Toulouse 3, 1998. http://www.theses.fr/1998TOU30185.
Повний текст джерелаGrunskis, Vytautas. "Kai kurių abiotinių veiksnių įtaka hibridinės drebulės (P. tremuloides × P. tremula) adaptacijai ex vitro sąlygomis." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100621_113735-14333.
Повний текст джерелаThis master thesis researches some effects of abiotic factors on adaptation of the hybrid aspen under ex vitro conditions. Object of the research – Hybrid aspen (Populus tremuloides x Populus tremula). Purpose of the research – Defining the impact of temperature and pH substrate on adaptation of the hybrid aspen under ex vitro conditions. Research methods – The impact of temperature and pH substrate on adaptation under ex vitro conditions. Results of the research: The effect of different temperature on rootless micro plantlets prepared for planting shows that the best results of adaptation are achieved when micro plantlets are disposed to temperature of +4 ºC for 12 hours. The reaction of genotypes to different temperature conditions is of no significant importance. For better adaptation under ex vitro conditions, it is recommended to water micro plantlets with solutions that have the same pH (5,5 – 6) or minimally larger than physiological saline. Plant growth regulators, such as PBZ and ABR, can also be used for better adaptation results under ex vitro conditions, especially under less favourable conditions (when pH is 5).
Narmontas, Andrius. "Hibridinio (gauruotojo) alksnio (Alnus x hybrida A. Braun ex Rcchb) mikrodauginimo audinių kultūroje sąlygų ištyrimas ir augalų – regenerantų išauginimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130621_144020-33309.
Повний текст джерелаFinal work of University Postgraduate Studies studied the hybrid alder tissue culture and micropropagation of plants–regenerants grown. Research subject – genus alder trees (alder (Alnus glutinosa L.), gray alder (Alnus incana L.) and hybrid (Woolly) alder (Alnus x hybrida A. Braun ex Rcchb). Research aim – to investigate the hybrid alder (Alnus x hybrida A. Braun ex Rcchb) micropropagation conditions in the culture of tissue and to grow crops–regenerants. The experimental phases of the study: 1. the preparation to sterilized explants and sterilization; 2. the preparation of nutrient medium; 3. the cultivation of regenerants–plants; 4. collection, processing of data and analysis of the results. The results – The aseptic „ACE“ and silver nitrate AgNO3 is the most suitable for the sterilization, because depending on the genotype, 89-93 percent of the explants remained free of infection. Despite of genotype callus formed 100 percent on the every microshoots, only in the different time of life. It was found out the best growth regulator of microshoots regeneration is BAP (cytokinin). Hybrid alder by the number of microshoots outsriped alder and gray alder. The biggest opportunities of propagation has hybrid alder because the biggest number of microshoots grown from a single callus.
Ducote, Julien. "Limites de l'intégration des masques de gravure et d'un matériau diélectrique hybride pour la fabrication des interconnexions en microélectronique." Phd thesis, Université de Grenoble, 2010. http://tel.archives-ouvertes.fr/tel-00668087.
Повний текст джерелаDucoté, Julien. "Limites de l'intégration des masques de gravure et d'un matériau diélectrique hybride pour la fabrication des interconnexions en microélectronique." Phd thesis, Université de Grenoble, 2010. http://tel.archives-ouvertes.fr/tel-00714269.
Повний текст джерелаLefaucheur, Julien. "Astronomie gamma depuis le sol et l'espace : premières analyses du réseau hybride HESS-II et recherche de candidats blazars parmi les sources non identifiées du Fermi-LAT." Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCC093.
Повний текст джерелаThis manuscript is about high energy -γ-ray astronomy (between GeV and GeV) with the Fermi-LAT satellite and very high energy astronomy above ~GeV) via the H. E. S. S. Experiment. The second phase of the H. E. S. S. Experiment began in July 2012 with the inauguration of a fifth 28 m diameter telescope added to the intial array composed of four 12m diameter imaging atmospheric Cherenkov telescopes. In the first part of this thesis, we present the development of an analysis in hybrid mode based on a multivariate method dedicated to detect and study sources with different spectral shapes and the first analysis results on real data. The second part is dedicated to the research of blazar candidates among the Fermi-LAT unidentified sources of the 2FGL catalog. A first development is based on a multivariate approach using discriminant parameters built with the 2FGL catalog parameters. A second development is done with the use of the WISE satellite catalog and a non-parametric technic in order to find the blazar-like infrared counterparts of the unidentified sources of the 2FGL catalog
Milaknis, Tautvydas. "Investicijų į naujos paslaugos diegimą pagrindimas ir efektyvumo vertinimas." Bachelor's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130730_105840-45554.
Повний текст джерелаThe main intention for the final bachelor thesis is to substantiate implementation of new services – investments given for the rental of hybrid servers and accomplish an efficiency evaluation of investments. New services have a major impact on market processes. Although in many cases it is difficult to measure features and benefits of the services, its production and consumption are being used together. At the moment, the services sector is receiving even larger attention as it is considered as the economic engine which has eventually impacted on labor and employment relations, the country's growth and development, environmental conditions, pricing, and competitive opportunities. The theory part of this work analizes value of new services in the market, explains more about an investment in services and overlooks an efficiency evaluation methods of investment. Practical part describes the meaning of the hybrid server hosting service, and shows an exact substantiation for the investment needs. Furthermore, these papers are evaluating an efficiency of the investment project, which has been devided in to alternatives. Risk of the selected alternatives is assessed using sensitivity and scenario analysis methods.
Rastenienė, Loreta. "Hibridinių fotoninių kristalų optinės savybės." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080924_181352-25546.
Повний текст джерелаWe live in the rapidly developing technological world. However, fields of communication, computer memory, and data processing require considerable improvements. The speed of data transportation is acceptable but capacity is low. There is a growing need for new technologies that rapidly detect and treat diseases at an early stage or even pre-stage. When we get accustomed to the advance, we demand more compact, energy-efficient, rapidly-responding and environmentally-safe technologies. During the last century this problem was solved by switching to transportation of electronic data, which connected people around the world. This approach had changed our lives, but about twenty years ago this technology reached its limits, while need for an even higher transportation capacity increases. Now we need faster computers and other state-of-the-art technological solutions: electrons are too slow and we have to use photons. Over the last decade, the steady progress regarding ability to fabricate hybrid photonic nanostructures led to a rich variety of different one-, two-, and three-dimensional dielectric/organic and/or metallic periodic structures. They demonstrate qualitatively new and fascinating linear-optical, nonlinear-optical, and quantum-optical features which provide an unprecedented control of light propagation and light-matter interaction. Photonic-based technology, coupled with nanotechnology, can meet many of these challenges. In this work fabrication of hybrid photonic... [to full text]
Ručinskas, Robertas. "Fiber Reinforced Polymer Composite (Frpc) Bridges And Their Construction Perspectives In Lithuania." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110620_141735-19839.
Повний текст джерелаŠiame magistriniame darbe atlikta Pluoštais Armuotų Polimerinių Kompozitinių (PAPK) tiltų techninė ir ekonominė analizė. Nagrinėjama esama pasaulio ir Lietuvos tiltų būklė, nustatytos būdingos problemos bei defektai. Šiame darbe PAPK yra svarstoma kaip alternativi medžiaga tiltų statybai. Atlikta PAPK panaudojimo klasifikacija tiltų statybai, analizuojami esami PAPK tiltų pavyzdžiai bei jų paplitimas. Toliau nustatomos mechaninės bei fizinės PAPK savybės, atsižvelgiant į medžiagos sandarą, gamybos būdą, ilagalaikius veiksnius ir privalumus lyginant su plienu ir gelžbetoniu. Pagal atliktą PAPK tiltų ir perdangų apkrovos-deformacijų, suirimo analizę nustatyta elementų elgsena, pateiktos pagrindinės problemos bei privalumai palyginus su tradiciniais tiltų sprendiniais. Taip pat išnagrinėtos PAPK tiltų projektavimų normos, pateikti skaičiavimų ypatumai bei problemos. Paskutiniame skyriuje atlikta Gyvavimo Ciklo Kainos analizė parodė PAPK tiltų finansinį įgyvendinamumą. Darbo pabaigoje pateikiamos pagrindinės išvados, rezultatai, spręstinos problemos bei PAPK tiltų panaudojimo rekomendacijos Lietuvoje. Atlikta techninė ir ekonominė analizė parodė, jog PAPK panaudojimas tiltų statybai yra techniškai ir ekonomiškai efektyvus sprendimas.
Valinčius, Nerijus. "Atskirų veislių avių mišrūnų produktyvumo tyrimai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140519_092624-87979.
Повний текст джерелаThe relevance of the topic. Sector of animal husbandry in Lithuania is an important part of agriculture. For the enlargement of this sector there are favourable nature conditions, formed animal growing traditions, accumulated experiences. Sector of animal husbandry is significant in supplying various food products for the Lithuania consumers and an important source for the export. Moreover, products from animal meat are essential part of the healthy balanced diet. Meat contains many various food materials, vitamins and minerals needed for the organism of human being. Furthermore, the sector of animal husbandry is important for the food industry. Technical potential of meat, milk and other product processing companies create all the opportunities for maximizing resources of the animal husbandry sector and to create economical assumptions for the growth of this sector. The potential of meat characteristics of many various sheep’s is high, therefore while using it smartly it is possible to obtain hybrid lambs, which distinguish oneself with exceptionally good meat characteristics and high biological value meat. The object of the thesis is hybrid lambs. The goal of the thesis is to analyze Suffolk (S) and Wiltshire horn (WH), Lithuania black head (LBH) and Wiltshire horn, Suffolk and Cameroon(C), Lithuania black head and Cameroon genotype hybrid lambs productivity. Objectives of the thesis: 1. To analyze ewes reproduction indicators while pairing them with different breed rams... [to full text]
Laouamri, Khaled. "Contribution à l'intégration des composants passifs d'une alimentation à découpage." Grenoble INPG, 2001. http://www.theses.fr/2001INPG0090.
Повний текст джерелаThe work presented in this report deals with a new set of thèmes for the Power Electronic team of the LEG: "the hybrid intégration of the passive components". They relate to the design, the modeling, the realization and the characterization of the integrated passive components. Thèse components will be employed within AC-DC converter used as support to our study. It cornes out from an évaluation of some converters that the séries résonant structure is well suitable to intégration. Thanks to a new axisymmetric formulation both of electric , magnetic and coupled effects are considered, ail geometrical and frequency effects are taken in account. This formulation, enabling coupling with electric circuit équations, proves to be well adapted for the electromagnetic characterization of the magnetic components. Works, about modeling of passive components, developed in the LEG made possible to characterize the realized LCT structure by taking into account ail phenomena. This has led, in particular, to dielectric losses évaluation. Measurements showed that integrated structure LC^brings especially a better compactness
Bukauskas, Virginijus. "Application of scanning probe microscopy for development and investigation of gas sensitive nanosystems and hybrid structures integrated with the ultra-thin metal oxide." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20101001_150357-00098.
Повний текст джерелаKryptingas kietojo kūno darinių, naudojamų išorinio dujų poveikio detekcijai, savybių keitimas yra vienas iš aktualiausių uždavinių, sprendžiamų kuriant lakiųjų cheminių junginių poveikio atpažinimo ir matavimo sistemas. Šias savybes lemia darinių medžiaga, jų struktūra bei sąveikos su dujine aplinka ypatumai, kurie hibridiniuose dariniuose iš kietojo kūno ir biomolekulių gali būti lemiami dar ir biocheminiu atpažinimu. Šiame darbe tiriami dujoms jautrūs hibridiniai dariniai ir nanosistemos, integruotos metalo oksido plėvelėse, Skenuojančio zondo mikroskopijos (SZM) metodais. Disertacijoje susieti itin plonų (<30-50 nm) SnOx sluoksnių varžos atsako į dujas bei elektrinių savybių ypatumai su sluoksnių morfologija, priklausančia nuo auginimo sąlygų ir trukmės. Eksperimentiškai įrodyta, jog SZM lokalinių srovių tyrimai, priklausomai nuo matavimo parametrų, leidžia atskirai aprašyti technologiškai keičiamas dujoms jautrių darinių charakteristikas ir tik nanosistemose vykstančius procesus, kurie, kai kuriais atvejais, gali būti stebimi ir tipiškuose dujoms jautrių darinių taikymuose. Sukurtas originalus metodas, tinkantis nanostruktūroms metalo oksidų paviršiuje formuoti bei tų struktūrų elektrinėms savybėms keisti. Skirtingai nuo literatūroje žinomo paviršiaus nanooksidinimo, pritaikyto formuoti cheminiam poveikiui atsparias dangas, mūsų metodas leidžia formuoti įvairaus elektrinio laidumo nanostruktūras metalo oksidų paviršiuje.
Cimmperman, Piotras. "Plonųjų manganitų sluoksnių tyrimas stipriuose impulsiniuose elektriniuose ir magnetiniuose laukuose." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20061003_100516-61918.
Повний текст джерелаButkevičienė, Lina Marija. "Development and yielding regularities of winter oilseed rape and its hybrids as influenced by different sowing dates." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20130117_120604-15437.
Повний текст джерелаTyrimų tikslas - nustatyti žieminių rapsų ir jų hibridų vystymosi dėsningumus skirtingos trukmės šiltėjančiu rudens – žiemos periodu, įvertinti jų biopotencialo formavimosi ypatumus bei optimizuoti prisitaikymo prie besikeičiančių klimato sąlygų adaptacines priemones (sėjos laiką). Disertacijos ginamieji teiginiai: 1. Žieminių rapsų vystymasis iki rudens vegetacijos pabaigos priklauso nuo sėjos laiko ir augalo genotipo. 2. Atsinaujinus vegetacijai žiemojimo metu, rapsų ir jų hibridų skrotelėje vykstantys maisto medžiagų pokyčiai skiriasi ir priklauso ne tik nuo genotipo ir sėjos laiko, bet ir nuo metų meteorologinių sąlygų. 3. Skirtingas sėjos laikas įtakojo žieminių rapsų ir jų hibridų peržiemojimą. Rapsų hibridai yra mažiau jautrūs sėjos laiko vėlinimui. 4. Sėjos laikas daro didesnę įtaką rapsų nei jų hibridų sėklų produktyvumui.
Boetto, Riccardo. "Extreme hepatectomies and non-resectability technical breakthrough for liver neoplasia, focusing on colorectal metastases: experimental pilot study on safety, efficacy, and regeneration patterns with new insight on ALLPS-LT hybrid techniques." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3426225.
Повний текст джерелаBackground La ricerca di nuove strategie per ampliare i criteri resecabilità in chirurgia oncologica epatobiliare, ha condotto allo sviluppo delle tecniche di two-stage hepatectomy, procedure multi-step con l’intento di favorire una rigenerazione efficace del future liver remnant (FLR). Nel 2012 è stata pubblicata la prima casistica internazionale multicentrica relativa ad una nuova tecnica chirurgica definita con l’acronimo ALPPS (Associating Liver Partition and Portal vein ligation for Staged hepatectomy) che sfrutta l’impiego nello uno Step1 (laparotomico) della legatura del ramo portale destro (PVL) in concomitanza di una transezione parenchimale subtotale (in situ splitting), al fine di stimolare una rapida ipertrofia del FLR in vista dello Step2 resettivo. Presso la UOC di Chirurgia Epatobiliare e dei Trapianti Epatici dell’Università di Padova parallelamente all’iniziale impiego della tecnica ALPPS, è stato messo a punto un nuovo modello chirurgico che inverte il paradigma classico ALPPS e prevede uno Step1 in videolaparoscopia con PVL intra-operatoria o embolizzazione portale (PVE) radiologica sequenziale con termoablazione con microonde (MWA) sulla futura trancia di sezione in vista dello Step2. Questa metodica è stata identificata col termine di LAPS (Laparoscopic microwave Ablation and Portal vein occlusion for Staged hepatectomy). Materiali e Metodi Sono stati valutati di 10 pazienti (M:F=6:4; età mediana 62,5 anni - range 29-81), sottoposti a intervento LAPS per patologia epatica maligna primitiva o secondaria, non altrimenti resecabile per insufficiente FLR preoperatorio. Sono stati raccolti i dati intra-operatori, il profilo bioumorale durante la prima settimana rispettivamente dopo entrambi gli Step chirurgici, le complicanze post-operatorie, la sopravvivenza globale e l’analisi dell’outcome oncologico e post-operatorio (follow-up mediano 17 mesi; range 4-36). Risultati In relazione all’analisi volumetrica è stato ottenuto un significativo incremento del FLR da 372.3 cc (range 179-407) a 664 cc (range 491-923) – p=0.002 – e del FLR/BW ratio (mediamente da 0.53% a 0.94%; p=0.002), assistendo a un’ipertrofia del FLR del 71.5% (range 42.8-132%) e a un incremento volumetrico giornaliero mediano di 29.3 cc die (range= 16.4-43.3). Tutti i pazienti considerati hanno avuto accesso allo Step2, ottenendo un’incremento efficace del FLR in media in 9.5 giorni (range 7-11 giorni). La durata mediana dello Step1 (145 min; range 75-325 min) è risultata significativamente inferiore (p=0.0005) a quella dello Step2 (402.5 min; range 185-630). Le perdite ematiche sono risultate mediamente nulle (range 0-70 cc) in corso di Step1 per cui nessun paziente ha necessitato di emotrasfusione, e 800 cc (range 600-3600) in corso di Step2 (p=0.0001). La necessità di monitoraggio post-operatorio in terapia intensiva è risultata mediamente dopo Step1 e Step2 rispettivamente non necessaria e di 2.5 giorni (range=1-6 giorni) (p=0.0057). La degenza totale è risultata mediamente di 14 giorni (range= 10-46) con la particolare caratteristica che 7/10 pazienti (70%) hanno beneficiato di un periodo di dimissione a domicilio interstage. Lo studio delle complicanze post-operatorie utilizzando la Dindo-Clavien Classification ha messo in evidenza 20 eventi in 8 pazienti (80% dei pazienti ha presentato almeno una complicanza); analizzando per singolo Step 4/10 pazienti (40%) hanno presentato complicanze dopo Step1 mentre 7/10 (70%) pazienti hanno presentato complicanze dopo Step2; dopo Step1 e Step2, rispettivamente 20% e 40% di complicanze di grado ≥ IIIa (con un unico evento IIIb, nessun evento di grado IV e nessuna complicanze biliare). Non si è registrato alcun evento di mortalità peri-operatoria (90-days Mortality 0%). La Overall Survival a 12 mesi, indipendentemente dalla patologia di base è risultata 77.8% con una sopravvivenza mediana di 28.2 mesi. Per quanto concerne l’analisi istologica 8/10 pazienti (80%) hanno ottenuto una resezione oncologicamente radicale (R0). Conclusioni La tecnica LAPS è risultata efficace nel raggiungimento della resecabilità in pazienti non operabili upfront per insufficienza del FLR, seppur con un considerevole tasso di complicanze, ma con dati comparabili ai risultati descritti in letteratura. Rispetto ai dati relativi alla tecnica standard ALPPS non si è registrata mortalità peri-operatoria e il 70% dei pazienti ha beneficiato di un breve periodo di dimissione interstage . Nell’ampio panorama dello sviluppo delle tecniche chirurgiche di two-stage hepatectomy la LAPS sembra poter descrivere uno dei nuovi paradigmi, permettendo grazie all’impego di tecniche mini-invasive, di ottenere un significativo risultato oncologico in pazienti selezionati pre-operatoriamente non resecabili.
Dechyeva, Daryna. "Molecular-cytogenetic analysis of repetitive sequences in genomes of Beta species and hybrids." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2006. http://nbn-resolving.de/urn:nbn:de:swb:14-1153318263914-87397.
Повний текст джерелаPokštas, Jonas. "Pjaustymo uždavinio algoritmų realizacija ir tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070816_144142-98749.
Повний текст джерелаA non – guillotinable, two – dimensional, rectangular cutting stock problem is being introduced in this paper and its solving methods either. Due to the combinatorial complexity of a problem, it is impossible to solve it optimally for every instance. Consequently an aproximate methods have been chosen. The problem is solved by metaheuristic genetic and simulated annealing methods hybridised with heuristic „Bottom Left Fill“ and „Lowest Gap“, which is an originally modified version of „Best Fit“ algorithm. The same heuristic algorithms are implemented separately from hybridised ones. A comparation analysis of these methods is done and the influence on solution quality depending on the selection of algorithms parameters and its initial conditions is considered. The methodology of solving cutting stock problems is being formulated and presented.
Butkevič, Jolanta. "Gluosnio žilvičio (Salix viminalis L.) ir kai kurių jo kultivarų bei hibridų klonų morfobiologiniai ir produktyvumo tyrimai lauko kolekcijose." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070816_171123-05163.
Повний текст джерелаIn 2004 – 2006, in plantation of Alytus join stock company “Vilda”, there were researched and valued morphological characteristics and productivity of basket willow (Salix viminalis L.), some of its cultivares and clones of hybrids (S. viminalis cl. 04116, S. viminalis `Americana` green bark form cl. 9972, S. viminalis `Americana` cl. 9976, S. viminalis `Tordis`, S. purpurea x S. viminalis cl. 9714 and cl. 04141). It has been proved some differences between S. viminalis L., its cultivares and clones of hybrids in number and mass of sprouts and stems on a bush, the height of bushes, their diametre lenght and yield of twigs. The most valuable taxa of clones regarding productivity are S. viminalis `Americana` cl. 9972 (649,8 thou.unit/ha) and S. purpurea x S. viminalis cl. 9714 (609,9 thou.unit/ha). S. viminalis `Tordis`, S. viminalis `Americana` cl. 9972, S. viminalis `Americana` cl.9976 are the most intensively growing bushes and have the longest sprouts. In the field collections the highest mass of regrowth sprouts and stems are found by the clone 9976 of S. viminalis `Americana`(1828,9 gram) and S. viminalis `Tordis` (1774,9 gram). It has been discovered that within the period of 3 years taxa of S. viminalis L. reach the stated mass of dry stems per one ha: S. viminalis cl. 04116 – 35,5 t/ha, S. viminalis `Americana` žaliažievė forma cl. 9972 – 44,2 t/ha, S. viminalis `Americana` cl. 9976 – 50,1 t/ha, S. viminalis `Tordis` – 49,6 t/ha.
Harmel, Justine. "Synthèse de nano-catalyseurs hybrides à base de cobalt pour la catalyse Fischer-Tropsch." Thesis, Toulouse, INSA, 2016. http://www.theses.fr/2016ISAT0035/document.
Повний текст джерелаDue to the decreasing the oil resources, and because of the the fluctuations of the price as a result of the geopolitical context, the Fischer-Tropsch synthesis, that enables the production of hydrocarbons form the syngas mixture (CO and H2) in the presence of a catalyst based on cobalt or iron, has recently gained a renewed interest from industrial as well as form the academic communities. Although this reaction was discovered in 1923 by the Germans Franz Fischer and Hans Tropsch, the mechanisms that come into play during this reaction and the crucial properties of the catalyst properties remain uncertain. In this context, the work presented in this thesis, aims to investigate the impact of parameters such as the crystallographic structure and the shape of the cobalt nano-objects, which is the active phase of the catalyst for this reaction. For this purpose, model cobalt nano-objects were synthetized and their catalytic properties were studied. As a first step, a cobalt based catalyst exhibiting an hcp crystallographic structure and an anisotropic shape was prepared via a synthetic route involving the decomposition of an organometallic precursor of cobalt and leading to the formation of anisotropic cobalt nano-objects. Catalytic tests were then conducted in a slurry reactor, in collaboration with an industrial partner, IFP-EN. This collaboration allowed performing catalytic studies under conditions that are very close to the actual industrial conditions. These studies revealed an increased stability of these catalysts compared to reference catalysts that deactivate with time. Finally, several cobalt-based catalysts, supported on innovative supports, such as macrostuctured supports, allowing a better control of the exothermicity, were prepared and their catalytic properties studied on a fixed-bed reactor that was set up during the course of this thesis work
Urbanavičiūtė, Asta. "Lietuvos juodmargių ir jų mišrūnų su Šarole mėsinės savybės ir mėsos kokybė." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060316_144200-62554.
Повний текст джерелаBukauskas, Virginijus. "Dujoms jautrių hibridinių darinių ir nanosistemų integruotų metalo oksido plėvelėse kūrimas ir tyrimai Skenuojančio zondo mikroskopijos metodais." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20101001_150411-33373.
Повний текст джерелаModification of the properties of solid state structures, used for gas sensing is important task in making detection and measurement systems of volatile chemical compounds. These properties depend on material, inner structure and interaction with gas atmosphere. In hybrid materials (solid-biomolecular) biochemical recognition plays important role in gas sensing mechanism. In this work the methodologies of the SPM was applied for characterization of the local point and local area properties in the gas sensitive MO films with the nanoscaled thickness that can be used for nanosystems and hybrid materials in novel types of chemical detectors. In this dissertation morphology and physical properties of metal oxide films with thickness from a few to about 50 nm was investigated and described a relationship between the gas response and film thickness. It was experimentally shown that effects of external influence on the properties of the surface nanostructures can be described by the specific characteristics of the scanning probe spectroscopy displaying the dependences of the probe contact electric current on both the probe potential and the probe pressing force. An original method based on the SPM probe controlled electrical current was proposed for the formation of nanosystems with various electrical properties on the surfaces of thin MO films.
Simaitis, Laurynas. "Hibridinių sistemų modeliavimas naudojant agregatinį metodą." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070816_144345-66487.
Повний текст джерелаThis paper presents the method of using Piece Linear Aggregates formalism (PLA) for specification and simulation of hybrid systems, when continuous components are described in ordinary differential equations (ODEs). PLA is used to create Quantized State System (QSS) model. QSS is integration based method, created for ODE solving. Since QSS method first was introduced for use in Discreet Event Systems (DEVS) formalism, we adapted it for PLA formalism, which is fundamentally consanguineous to DEVS formalism. Pharmacokinetics model is used as example of hybrid system. Pharmacokinetics is a branch of pharmacology which describes administered drug absorption and distribution in human body. In pharmacokinetics drug distribution is described using ODE. In order to use drug injection in pharmacokinetics model, we have to modify standard QSS model and add some specific capabilities. In the result: modified QSS method was obtained and used for pharmacokinetic model specification. Simulation of morphine concentration in plasma was performed using real pharmacokinetics data to test Patient-Controlled Analgesia method effectiveness.
Jankevičiūtė, Rasa. "Kalbotyros terminai Vinco Urbučio "Žodžių darybos teorijoje"." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060619_135000-60672.
Повний текст джерелаSikorskaitė-Gudžiūnienė, Sidona. "Genetic characteristics of diversity of apple resistance to apple scab." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20141208_102400-45936.
Повний текст джерелаTyrimų tikslas: identifikuoti V. inaequalis indukuojamo Malus sp. apsauginio atsako reikšmingus genus ir sukurti piramidinio atsparumo rauplėgrybiui donorus obels selekcijai. Tyrimų uždaviniai: 1. Charakterizuoti obels genetinių išteklių įvairovę bei nustatyti jų atsparumą rauplėgrybiui; 2. Sukurti ir atrinkti superjautrumo atsaku pagrįsto piramidinio atsparumo donorus obels selekcijai; 3. Charakterizuoti naminės obels ląstelės branduolio proteomą ir atlikti V. inaequalis indukuojamo atsako lyginamosios genomikos analizę; 4. Identifikuoti obels atsparumo rauplėgrybiui reikšmingus genus ir sukurti obels atsparumo ligoms funkcinius žymeklius.
Ražanskas, Raimundas. "Hepatito B viruso šerdies baltymo ir jo mutantinių formų sąveika su žmogaus kepenų baltymais." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20101116_164107-53995.
Повний текст джерелаHepatitis B virus (HBV) is a major human pathogen, but up to now little is known about its core protein (HBc) interactions with host proteins. The role of mutated HBc proteins in enhanced pathogenicity of mutant viruses is also unclear. In this work, the yeast two-hybrid system was employed to find human proteins interacting with HBV core mutants HBc1 and HBc2, as well as with the wild-type core protein. All HBc variants strongly and specifically interacted with human proteins GIPC1 and GIPC2. Common protein interaction domain PDZ in both GIPC1 and GIPC2 was identified as the region interacting with the C-end of HBc. A putative PDZ-interacting motif was identified at the C-end of the HBc protein, and variation of this sequence influenced determined interactions. Human proteins FLJ20850 and IKKγ (NEMO) strongly and specifically interacted with mutants HBc1 and HBc2 only. Gene structure and expression FLJ20850 protein, which was never before described in scientific literature, were analyzed bioinformatically. Detailed analysis of interacting protein pairs revealed regions, responsible for discovered interactions. IKKγ is known as an important regulator of transcription factor NF-kB, therefore HBc1 influence on NF-kB activity in human cells was evaluated experimentally. Determined protein interactions potentially add to understanding of HBV replication and pathogenicity and could serve as targets for developing of new antivirals.
Ražanskas, Raimundas. "Interaction of Hepatitis B virus core protein and its mutant forms with human liver proteins." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20101116_164120-74438.
Повний текст джерелаHepatito B virusas (HBV) yra plačiai paplitęs žmogaus patogenas, bet iki šiol mažai ištirta jo šerdies baltymo (HBc), o ypač natūraliai aptinkamų mutantinių formų įtaka viruso dauginimuisi ir patogeniškumui. Šiame darbe mielių dviejų hibridų metodu atrinkti žmogaus kepenų baltymai, sąveikaujantys su laukinio tipo baltymu bei mutantais HBc1 ir HBc2. Su visomis tirtomis HBc atmainomis stipriausiai ir specifiškiausiai sąveikavo žmogaus baltymai GIPC1 ir GIPC2. Detaliau tiriant šias sąveikas nustatyta, kad HBc baltymo C-galas sąveikauja su GIPC1 ir GIPC2 baltymų PDZ domenais. HBc baltymo C-gale aptiktas PDZ domenų atpažįstamos sekos motyvas ir parodyta, kad šios sekos pokyčiai įtakoja HBc sąveiką su GIPC1 ir GIPC2. Vien su mutantais HBc1 ir HBc2 stipriausiai ir specifiškiausiai sąveikavo žmogaus baltymai FLJ20850 ir IKK (NEMO). Anksčiau netyrinėto nežinomos funkcijos žmogaus baltymo FLJ20850 raiška ir geno struktūra apibūdinta naudojantis bioinformatinėmis duomenų bazėmis. Detaliau tiriant mutantų sąveikas su FLJ20850 ir IKK buvo nustatytos baltymų sritys, apsprendžiančios tarpusavio sąveiką. IKK baltymas reguliuoja transkripcijos veiksnio NF-κB aktyvumą, todėl buvo tiriama ir mutanto HBc1 įtaka NF-κB aktyvumui žmogaus ląstelėse. Aptiktos baltymų sąveikos gali padėti geriau suprasti HBV dauginimosi ciklą bei patogeniškumą ir tapti naujų antivirusinių vaistų taikiniais.
Marin, Igor. "Kelių automatinio vertimo sistemų integracija." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20120723_105347-53344.
Повний текст джерелаThe Master’s thesis analyses machine translation systems, their principles of operation and the methods used in integrating these systems. The structure of popular statistical machine translation systems, as well as the advantages and disadvantages of such systems is described in detali. The existing machine translation systems for the Lithuanian-English language pair along with their abilities and shortcomings are presented. Lithuanian and English languages are analysed from the linguistic perspective. The similarities and differences between these languages, as well as the difficulties, arising in translating the text from one language to another are discussed. Moreover, different machine translation evaluation methods, including the popular BLEU metric, are reviewed. Various architectures for integrating multiple machine translation systems, offered by foreign authors, are presented and analysed. Confusion networks, which are used in integrating machine translation systems, are discussed. An original method of implementing the hybrid machine translation system is offered. The hybrid system is implemented in practice. The translation results obtained from the created system and the existing systems for the Lithuanian-English language pair are assessed and compared. Finally, after performing the theoretical review of machine translation systems and implementing the hybrid system, conclusions and recommendations are provided. The thesis consists of 6 parts: introduction, the... [to full text]
Krukas, Donatas. "Žemaičių Naumiesčio anaerobinės nuotekų valyklos veikimo efektyvumo įvertinimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070808.113514-22519.
Повний текст джерелаIn Lithuania the problem of low wastewater treatment efficiency in anaerobic hybrid reactors also rised. It was determined that one of main reasons of bad wastewater treatment quality in anaerobic hybrid reactors was insufficient volume of equipment and the equipment would be cheap and not complicated. In anaerobic wastewater are not used an electricity. And it is an advantage of wastewater, but there are also problems in cleaning wastewater until permissible concentrations. In the article are generalized 2004-2006 year researches Silutes area in Zemaiciu Naumiestis about wastewater treatment efficiency and analysed reasons for which are insufficient cleaned wastewater treatment. In anaerobic hybrid reactor the efficiency of wastewater treatment depends on volume load. There are found, that are used just small part of volumetric load because of uneven wastewater repartition in anaerobic reactor repository.
Jusas, Mantas. "Hibrido Populus tremuloides L. x Populus tremula L. x Betula pendula Roth mikrodauginimo in vitro sąlygų ištyrimas ir augalų regenerantų išauginimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20090114_155051-99442.
Повний текст джерелаAim of the work: new crossbred hybrid aspen (Populus tremuloides x Populus tremula) and birch (Betula pendula) hybrids Objekt of the work: make long hybridization and grow up new regeneration plants in unformed embrio culture and rate genetical variation Results: After crossing get new hybrids. His variation rated by RAPD metod. After measure growing speed, set that hybrids 16.2 and 16.4 growing faster than hybriding aspen clons. In adaptation study set root growing speed. In study notice that plants with root and without in Jiffi tablet peat substratum after 3 month get same height .
Magnant, Jérôme. "Composites fibreux denses à matrice céramique autocicatrisante élaborés par des procédés hybrides." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14105/document.
Повний текст джерелаThe fabrication of multidirectional continuous carbon fibers reinforced dense self healing Ceramic Matrix Composites by new short time hybrid processes was studied. The processes developed are based, first, on the deposition of fiber interphase and coating by chemical vapor infiltration, next, on the introduction of ceramic powders into the fibrous preform by Slurry Impregnation and, finally, on the densification of the composite by liquid-phase Spark Plasma Sintering (SPS) or by Reactive Melt Infiltration of silicon (RMI).The homogeneous introduction of the ceramic particles into the multidirectional fiber preforms was realized by slurry impregnation from highly concentrated (> 32 %vol.) and well dispersed aqueous colloid suspensions. The densification of the composites by spark plasma sintering was possible with a short (< 5 minutes) dwelling period in temperature. The chemical degradation of the carbon fibers during the fabrication was prevented by adapting the sintering pressure cycle to inhibit gas evolution inside the system. The composites elaborated are dense. The fully densification of the composites by RMI was realised by carefully controlling the impregnation parameters to avoid to entrap some gaseous species inside the fiber preforms. Our carbon fiber reinforced ceramic matrix composites processed by Spark Plasma Sintering or Reactive Melt Infiltration have a damageable mechanical behaviour with a room temperature bending stress at failure around 300 MPa and have shown their ability to self-healing in oxidizing conditions. Compared to the CMC processed by CVI, the composites processed with a final consolidation step by RMI are fully dense and have a similar room temperature tensile test behaviour with an ultimate tensile stress around 220 MPa
Furlan, Marcos Mansano. "Abordagens para o problema de dimensionamento e sequenciamento da produção em indústrias integradas de papel e celulose." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-04102017-090421/.
Повний текст джерелаThe pulp and paper industry has been increasing the commercial importance in recent decades due to the constant growing demand. The increasing competitiveness of this sector generated by the globalized economy and the difficulty to develop good production plans in complex production environments have motivated the search for new and effective decision support systems. Given these difficulties, in this thesis we address the lot sizing and scheduling problem focused on integrated pulp and paper mills. This is a problem of medium to short term planning, generally more focused on the short term as it covers detailed production schedules in planning horizons which do not exceed 30 days. In these integrated pulp and paper process the production decisions of digester, evaporator, recovery boiler and multiple paper machines are considered, apart from the inventory control of intermediate and final products. Mathematical models known in the literature were modified and extended to incorporate additional features of the problem, such as processes with multiple paper machines. In addition, constructive and improvement heuristics, and hybrid methods based on genetic algorithms combined with a commercial solver were developed, as well as combinations of these solution approaches. The methods developed were computationally tested and the best combinations of methods were defined. Overall, the results of these methods were superior to the solutions obtained by pure commercial solvers. Moreover, the alternative variation proposed of the improvement heuristic fix-and-optimize with exchanges in the objective function surpassed the other methods, obtaining the best results, regardless of the quality of the initial solution used. The main contribution of this thesis are the presentation of mathematical models that appropriately represents the problem under study, and the development of effective solution methods to deal with the problem.
Buchowska, Jurata. "Tuopų genties medžių hibridų mikrodauginimo audinių kultūroje sąlygų ištyrimas ir augalų- regenerantų išauginimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20090114_161331-45099.
Повний текст джерелаAim of the work: Genus Populus trees: Populus alba × Populus tremula (Nr. 20), Populus tremula x Populus alba (Nr.21), P. tremuloides x P. tremula (Nr.8), P. tremuloides x P. tremula (Nr.3), P. tremuloides x P. tremula (Nr.9), Populus alba (Š16), P. berolinensis. Object of the work: Investigate poplar genus hybrids in vitro micro reproduction conditions and regenerate plants growth. Investigate poplar genomic DNA using NucleoSpin Plant Kit. Methods: Preparation of explants culture for sterile manner. Plants regenerate rear conditions. Growth media preparation and sterilization. Micro sprout input into unsterile conditions. DNA isolation. Results: For poplar trees explants sterilization is purposeful using aseptic solution combination without “ACE”, to vouch vital and half explants survival. Fungous infection found in berolinensis poplar explants: infections reach from 72 to 80 % depending from explants nature. Poplar genus genotype has impact on morphogenesis in tissue culture. The best growth media is Murashige Scoog (MS) with citotoksine BA- 0,5 mg/l. Callus formation and colaration depends on genotipe. Fastest growth had hybrid No. 8 ( tremuloides x P. tremula) from all poplar hybrids. His mean growth was 8.3 mm per 10 days. RAPD analysis shown that the parent trees and trees race in vitro are the similar (the same).
Malz, Angela. "Jahresbericht 2013 / Universitätsbibliothek Chemnitz." Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-181142.
Повний текст джерелаMelega, Gislaine Mara [UNESP]. "Problema integrado de dimensionamento de lotes e corte de estoque: modelagem matemática e métodos de solução." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/150002.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Nesta tese, estamos interessados em tratar de maneira integrada dois conhecidos problemas da literatura. Esta integração é referida na literatura como problema integrado de dimensionamento de lotes e corte de estoque. A ideia consiste em considerar simultaneamente, as decisões relacionadas com ambos os problemas, de modo a capturar a interdependência entre estas decisões e, assim, obter uma melhor solução global. Propõe-se um modelo matemático geral para o problema integrado de dimensionamento de lotes e corte de estoque (GILSCS), que considera vários níveis de integração e nos permite classificar a literatura, em termos de modelos matemáticos, dos problemas integrados. A classificação é organizada a partir de dois principais aspectos de integração que são: a integração através dos períodos de tempo e a integração entre os níveis de produção. Em um horizonte de planejamento que considera vários períodos, o estoque fornece uma ligação entre os períodos. Esta integração, por períodos de tempo, constitui o primeiro tipo de integração. O problema geral também considera a produção em diferentes níveis: objetos são fabricados ou comprados e então são cortados para produzir peças menores e estas, por sua vez, constituem componentes para a produção dos produtos finais. A integração entre os diferentes níveis de produção consiste no segundo tipo de integração. A revisão da literatura também possibilita direcionar interessantes áreas para pesquisas futuras. O comportamento da solução para este tipo de problema, com três níveis e vários períodos, é estudado a partir do desenvolvimento de métodos de solução considerando abordagens que superam as dificuldades do problema, que consistem no alto número de padrões de corte, estruturas em vários níveis (multiestágios) e variáveis binárias de preparo. Os métodos de solução propostos para o problema GILSCS são baseados em duas abordagens conhecidas da literatura, usadas com sucesso para resolver os problemas separadamente, que são o procedimento de geração de colunas e heurísticas de decomposição do tipo relax-and-fix. Estas estratégias e suas variações são combinadas à um pacote de otimização em um estudo computacional com dados gerados aleatoriamente. Uma revisão da literatura, em termos de métodos de solução, para o problema integrado também é apresentada. Outras contribuições desta tese consistem em propor diferentes modelos matemáticos para o problema integrado, combinando modelos alternativos para cada um dos problemas separadamente. Neste estudo, o objetivo é comparar e avaliar, com um extensivo estudo computacional, a qualidade e o impacto das diferentes formulações. O outro trabalho trata de uma aplicação do problema integrado em um indústria de móveis de pequeno porte, em que restrições específicas do ambiente industrial são abordadas, como estoque de segurança e ciclos da serra. A solução obtida pelo modelo proposto é comparada com uma simulação da prática da empresa.
In this thesis, the subject of interest is in treating, in an integrated way, two wellknown problems in the literature. This integration is referred in the literature as the integrated lot-sizing and cutting stock problem. The basic idea is to consider, simultaneously, the decisions related to both problems so as to capture the interdependency between these decisions in order to obtain a better global solution. We propose a mathematical model for a general integrated lot-sizing and cutting stock (GILSCS) problem. This model considers multiple dimensions of integration and enables us to classify the current literature, in terms of mathematical models, in this field. The main classification of the literature is organized around two types of integration. In a planning horizon which consists of multiple periods, the inventory provides a link between the periods. This integration across time periods constitutes the first type of integration. The general problem also considers the production in different levels: objects are fabricated or purchased and then, they are cut to produce the pieces which are then assembled as components in the production of final products. The integration between these production levels constitutes the second type of integration. The literature review also enables us to point out interesting areas for future research. The behavior of a solution to this type of problem, with three levels of production and several time periods, is studied considering the development of solution approaches that overcome the difficulties of the problem, which are the high number of cutting patterns, multi-level structures and the binary values of the setup variables. The solution methods proposed to the GILSCS problem are based on two known strategies from the literature which are used successfully to solve the problems separately, which are the column generation procedure and decomposition heuristics based on relax-and-fix procedure. These strategies and their variations are combined into an optimization package in a computational study with randomly generated data. A literature review, in terms of solution methods, to the integrated problem, is also presented. Other contributions of this thesis consist of proposing different mathematical models for the integrated problem combining alternative models for each one of the problems separately. In this study, the aim is to compare and evaluate, with an extensive computational study, the quality and the impact of these dfifferent formulations. Another study is an application of the integrated problem in a small furniture factory, in which specific constraints related to the industrial environment are addressed, such as, safety stock level constraints and saw cycles constraints. The solution obtained from the proposed model is compared to a simulation of the common practice in the company.
FAPESP: 2012/20631-2
FEDERICO, LUCA. "L'apprendistato letterario di Raffaele La Capria." Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/1005664.
Повний текст джерелаGhasemi, Masood. "Lot streaming in hybrid flow shop scheduling." Thesis, 2008. http://spectrum.library.concordia.ca/975966/1/MR45298.pdf.
Повний текст джерелаChang, Chia-Hsuan, and 張嘉軒. "Hybrid Flow Shop Scheduling with Lot Split Problem." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/82592320234076623580.
Повний текст джерела國立清華大學
工業工程與工程管理學系
103
In this research we study a hybrid flow shop scheduling with lot split and machine assignment problem, the order would be split up several sublots, and the machine assignment is that each order would be assigned to eligibility machine groups at each stage. In this research we study a three-stage hybrid flow shop production system, with several unrelated parallel machine groups at each stage, and there are some identical parallel machines at each machine group. We consider that processing time is stochastic, and each product type has its eligible machine groups. To reduce mean completion time, lot split would be used in this production system. Each order would be separated into several sublots to reduce flow time by the overlapping of operations. All in all, this research would discuss two issues, lot split and machine group assignment. Lot split is that each order would be separated into several equal size sublots, and we look for suitable quantity. Machine group assignment is that each order would be assigned to eligible machine groups at each stage. We simultaneously consider lot split and machine group assignment, so that solution space is too large. We use genetic algorithm to search for suitable solution. From the result, we find that lot split is useful to mean completion time, and variable lot split performs better than consistent lot split. In addition, we take stochastic processing time into condition, and it spends many times to reduce the sampling variability. Therefore, we use optimal computing budget allocation to improve efficiency. Computation results indicate that it reduces 76% simulation times by using OCBA.
Chou, Yi Han, and 周益漢. "Energy-Efficient Hybrid Flow Shop Scheduling with Lot Streaming." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/46270673618984321376.
Повний текст джерела輔仁大學
資訊管理學系碩士班
102
he hybrid flow shop scheduling (HFS) problems are commonly encountered in many real-world manufacturing operations such as computer assembly, TFT-LCD module assembly, solar cell manufacturing etc. Most previous work considered the scheduling problem on time requirement to improving production efficiency. However, increasing amount of worldwide carbon emissions are intensifying to cause the global warming problem. Many countries or international organizations start to pay attention to this problem and formulate some mechanisms to reduce the carbon emission. Nowadays, manufacturing enterprises has also been growing interest in the development of energy savings. Thus, this research attempts to reduce energy cost and completion time from manufacturing system level perspectives. The paper first proposed the multi-objective mixed integer programming to address the energy-efficient hybrid flow shop scheduling with lot streaming (EEHFSLS) to simultaneously minimize production makespan and electric power consumption. Due to the trade-off nature of both objectives and the computational complexity of proposed multi-objective mixed integer programming, this study adopts the Multi-Objectives Genetic Algorithm (MOGA) to obtain the approximate Pareto solutions, more efficiently. In addition, multi-objectives energy efficiency scheduling (MOEES) algorithm is also developed to calculate the fitness values of each chromosome within MOGA algorithm.
Lu, Ping-Chuan, and 盧炳全. "Logic Synthesis for Hybrid LUT/SOP Reconfigurable Design Style." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/76392191268112395986.
Повний текст джерела元智大學
資訊工程學系
98
We propose a new hybrid FPGA architecture with both the SOP-cell and 4-input LUT to improve logic utilization of pure LUT and pure macro-cell architectures. The SOP-cell is composed of 5 NAND4 gates with smaller logic delay and transistor count as compared to LUT and macro-cell. Furthermore, we propose a performance-driven logic synthesis design flow for our hybrid FPGA architecture. According to architectural evaluation results, we use two SOP-cells combined with one LUT as our hybrid configurable logic block. The experimental results indicate that our SOP-cell and synthesis technique achieve average 37.6% circuit delay reduction and average 51.01% transistor count reduction.
Huang, Tien-Yi, and 黃田毅. "Hybrid Flow Shop Scheduling Problem with Lot-Streaming and Limited Buffer." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/48411564274845123605.
Повний текст джерела國立雲林科技大學
工業工程與管理系
102
The competition of industries is more intense than before. The apparel industry must to increase productivity and reduce makespan to achieve the goal of on-time delivery. Therefore, we require an effective production scheduling system to prevent delaying the delivery with unsuccessful scheduling. For most apparel manufactures, cutting operation and sewing operation are the bottleneck processes. There are many difficulties to manage work in process between bottleneck processes, and need more buffer to store manage. This study will use the concept of lot-splitting to overlapping processes. Thus, we can reduce lead time and makespan. Therefore, this paper focus on hybrid flow shop scheduling problem with lot-splitting and limited buffer. This study construct a mathematical model which is conformed to the situation and constraints of problem, and using Lingo to verify the model validity. In large instances, this study develop Bat algorithm and Genetic algorithm to solve problems, then using experimental design to analysis the performance of system parameters, and take these two algorithm to solve many kinds of problems. The average solving quality of Bat algorithm is better than Genetic algorithm, and verifying the feasibility and availability of Bat algorithm.