Дисертації з теми "MBBs"
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Sieger, Philipp. "The Financing of MBOs and MBIs in Family-owned SME a Roadmap for Potential Buyers /." St. Gallen, 2007. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/02606853002/$FILE/02606853002.pdf.
Повний текст джерелаAnderson, Christopher. "BANDWIDTH LIMITED 320 MBPS TRANSMITTER." International Foundation for Telemetering, 1996. http://hdl.handle.net/10150/607635.
Повний текст джерелаWith every new spacecraft that is designed comes a greater density of information that will be stored once it is in operation. This, coupled with the desire to reduce the number of ground stations needed to download this information from the spacecraft, places new requirements on telemetry transmitters. These new transmitters must be capable of data rates of 320 Mbps and beyond. Although the necessary bandwidth is available for some non-bandwidth-limited transmissions in Ka-Band and above, many systems will continue to rely on more narrow allocations down to X-Band. These systems will require filtering of the modulation to meet spectral limits. The usual requirements of this filtering also include that it not introduce high levels of inter-symbol interference (ISI) to the transmission. These constraints have been addressed at CE by implementing a DSP technique that pre-filters a QPSK symbol set to achieve bandwidth-limited 320 Mbps operation. This implementation operates within the speed range of the radiation-hardened digital technologies that are currently available and consumes less power than the traditional high-speed FIR techniques.
Bishop, Jim, and John Welch. "800 Mbps TELEMETRY PROCESSING SYSTEM." International Foundation for Telemetering, 2000. http://hdl.handle.net/10150/607707.
Повний текст джерелаSatellites are becoming more capable and complex, as such their downlink requirements are increasing. In addition, future satellite systems will be operating at Ka-band that provides ample bandwidth to support the increase in downlink rates up to 800 Mbps. This paper describes a new generation commercial solution that can support 800 Mbps telemetry processing for data reception, frame synchronization, time tagging, Reed-Solomon forward error correction, data routing, data storage, data playback for testing, networking, and Bit Error Rate (BER) Testing.
Genrich, Thad J. "300 MBPS CCSDS Processing Using FPGA's." International Foundation for Telemetering, 1996. http://hdl.handle.net/10150/611415.
Повний текст джерелаThis paper describes a 300 Mega Bit Per Second (MBPS) Front End Processor (FEP) prototype completed in early 1993. The FEP implements a patent pending parallel frame synchronizer (frame sync) design in 12 Actel 1240 Field Programmable Gate Arrays (FPGA's). The FEP also provides (255,223) Reed-Solomon (RS) decoding and a High Performance Parallel Interface (HIPPI) output interface. The recent introduction of large RAM based FPGA's allows greater high speed data processing integration and flexibility to be achieved. A proposed FEP implementation based on Altera 10K50 FPGA's is described. This design can be implemented on a single slot 6U VME module, and includes a PCI Mezzanine Card (PMC) for a commercial Fibre Channel or Asynchronous Transfer Mode (ATM) output interface module. Concepts for implementation of (255,223) RS and Landsat 7 Bose-Chaudhuri-Hocquenghem (BCH) decoding in FPGA's are also presented. The paper concludes with a summary of the advantages of high speed data processing in FPGA's over Application Specific Integrated Circuit (ASIC) based approaches. Other potential data processing applications are also discussed.
Castellano, Pedro. "¿Deberían aprender a investigar los MBAs?" Universidad Peruana de Ciencias Aplicadas (UPC), 2013. http://hdl.handle.net/10757/285445.
Повний текст джерелаSivawamy, Ravichandran, and Geethanjali Soundappan. "File-Based Delivery over LTE-Based MBMS." Thesis, Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-2914.
Повний текст джерела+46723185198, +4917626686238,+4915166808450
Wunderlich, Kristin, Jim Chesney, and Toby Bennett. "Frame Synchronization At 300 Mbps And Beyond." International Foundation for Telemetering, 1990. http://hdl.handle.net/10150/613474.
Повний текст джерелаWhile most current ground based space telemetry acquisition systems are designed for and support data rates up to a few megabits per second (Mbps), NASA’s Tracking and Data Relay Satellite System (TDRSS) can support downlink rates up to 300 Mbps. In addition, the Advanced TDRSS (ATDRSS) is expected to support rates up to 650 Mbps. These high data rates will be required to support NASA’s future large scale operational programs such as the Space Station Freedom and the Earth Observation System. At the Goddard Space Flight Center, a prototype Frame Synchronizer card is under development which will operate at a minimum of 300 Mbps while providing a full suite of programmable functions such as 32 bit correlation, search-check-lock strategy, bit slip tolerance, fly wheeling, etc. In addition, cumulative quality data generation, on-board self diagnostics, and status/control processing are all integrated in this single card design. This level of functionality and very high data rate is made possible by the design of NASA application specific Gallium Arsenide (GaAs) Very Large Scale Integrated (VLSI) circuits to support space telemetry data system standards specified by the Consultative Committee for Space Data Systems. This paper will describe functions performed by this card and its supporting VLSI components.
Gomes, Fany Catherine Dias. "Retaining MBAs, from employees' point of view." Master's thesis, NSBE - UNL, 2009. http://hdl.handle.net/10362/9502.
Повний текст джерелаThe purpose of this study is to discuss retention strategies used by Human Resource Management to retain knowledge workers, particularly MBAs. This Work Project is a qualitative analysis taking into consideration MBAs point of view through semi-structured interviews. This document takes their opinions in order to discuss the possible gaps between the current HRM strategies used and the ones considered as effective by MBAs. The interviews were conducted with a sample of 24 participants all of them with a MBA Degree which gave to the analysis heterogeneity because of their different backgrounds. The interviews were recorded and then transcribed. A master table with the results was then elaborated. Concerning the findings, some of them confirmed the literature review. But new results arose from the interviews, which may be interesting for future research.
Berry, N. D. "Process modelling of the MBBR AS hybrid process." Thesis, Cranfield University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273470.
Повний текст джерелаKibalo, Tom, and Ben Miles. "A 400 Mbps High Density Digital Recording System." International Foundation for Telemetering, 1995. http://hdl.handle.net/10150/608542.
Повний текст джерелаA highly versatile 400 Mbps High Density Digital Recording System for telemetry and GPS downlink acquisition at Vandenberg AFB, California is discussed. The system supports 24 channels of data acquisition, is realized using entirely COTS components, and achieves full IRIG compatibility without any compromise in the desired system performance and operation.
Davis, Don, Toby Bennett, and Jonathan Harris. "A VERY LOW COST 150 MBPS DESKTOP CCSDS GATEWAY." International Foundation for Telemetering, 1995. http://hdl.handle.net/10150/608413.
Повний текст джерелаThe wide use of standard packet telemetry protocols based on the Consultative Committee for Space Data Systems (CCSDS) recommendations in future space science missions has created a large demand for low-cost ground CCSDS processing systems. Some of the National Aeronautics and Space Administration (NASA) missions using CCSDS telemetry include Small Explorer, Earth Observing System (EOS), Space Station, and Advanced Composite Explorer. For each mission, ground telemetry systems are typically used in a variety of applications including spacecraft development facilities, mission control centers, science data processing sites, tracking stations, launch support equipment, and compatibility test systems. The future deployment of EOS spacecraft allowing direct broadcast of data to science users will further increase demand for such systems. For the last ten years, the Data Systems Technology Division (DSTD) at NASA Goddard Space Flight Center (GSFC) has been applying state-of-the-art commercial Very Large Scale Integration (VLSI) Application Specific Integrated Circuit (ASIC) technology to further reduce the cost of ground telemetry data systems. As a continuation of this effort, a new desktop CCSDS processing system is being prototyped that offers up to 150 Mbps performance at a replication cost of less than $20K. This system acts as a gateway that captures and processes CCSDS telemetry streams and delivers them to users over standard commercial network interfaces. This paper describes the development of this prototype system based on the Peripheral Component Interconnect (PCI) bus and 0.6 micron complementary metal oxide semiconductor (CMOS) ASIC technology. The system performs frame synchronization, bit transition density decoding, cyclic redundancy code (CRC) error checking, Reed-Solomon decoding, virtual channel sorting/filtering, packet extraction, and quality annotation and accounting at data rates up to and beyond 150 Mbps.
Enterkine, Robert. "A 4 Mbps Digitizer with 100 kHz Signal Bandwidth." International Foundation for Telemetering, 1987. http://hdl.handle.net/10150/615332.
Повний текст джерелаThis paper presents a non-standard digitization scheme which samples the data asymmetrically in order to maximize data bandwidth. Two frame sychronization words are utilized in a separated manner to permit their replacement with the average value of adjacent data words during the decommutation process.
Pinho, Margarida Louro da Fonseca. "Aplicabilidade do reactor MBBR no tratamento de efluentes vínicos." Master's thesis, Universidade de Aveiro, 2007. http://hdl.handle.net/10773/539.
Повний текст джерелаO presente trabalho pretendeu analisar a aplicabilidade do reactor do tipo Moving Bed Biofilm Reactor (MBBR) no tratamento de efluentes vínicos. A natureza dos efluentes provenientes das adegas depende da região e do tipo de vinho processado e, para além disso, a sua quantidade e a qualidade variam significativamente ao longo do ano. Os principais objectivos deste trabalho foram analisar a aplicabilidade do reactor MBBR no tratamento de efluentes vínicos a operar com um tempo de retenção hidráulico de 24 horas, comparar o desempenho de reactores quando são utilizados meios de enchimento com características diferentes, comparar o desempenho de reactores com e sem recirculação de lamas e analisar o comportamento hidráulico deste tipo de reactores com e sem a presença de biomassa. Foram realizados ensaios em cinco reactores à escala laboratorial, em que quatro deles tinham enchimento, dos quais dois operaram com recirculação de lamas e os outros dois sem recirculação. O quinto reactor simulou um reactor de lamas activadas convencional com recirculação de lamas. Utilizaram-se dois tipos de enchimento, o Bioflow 9 e o Bioflow 40. Os modelos de escoamento hidráulico dos diferentes reactores foram determinados recorrendo a ensaios de tracer com e sem a presença de biomassa. Os ensaios efectuados demonstraram que os reactores que possuem enchimento têm comportamentos hidráulicos idênticos, sendo ambos caracterizados por modelos de mistura perfeita com zonas mortas e a percentagem de zonas mortas diminui nos ensaios realizados com biomassa (35-36% de zonas mortas para 10-12% de zonas mortas), concluindo-se que o grau de mistura melhora com a existência de biomassa. O reactor de lamas activadas foi caracterizado, em ambos os ensaios, pelo modelo de mistura perfeita com zonas mortas e curto-circuito, havendo uma ligeira alteração dos parâmetros quando o reactor opera com biomassa (28% de zonas mortas, 9% de curto-circuito para 26% de zonas mortas e 10% de curto-circuito). No presente estudo verificou-se que as condições limite de operação dos reactores foram alcançadas para um TRH de 24 h, 50% da altura do reactor com enchimento Bioflow 9 e o CQOalimentação = 8000 mg.L-1 (8,0. kgCQO.m-3.d- 1). Nestas condições o efluente tratado apresentou um CQOsolúvel = 1500 mg.L-1 correspondente a uma percentagem de remoção de CQO de 81%. Verificou-se também que para todos os reactores e em todas as condições operatórias testadas até à carga orgânica 6,5 kgCQO.m-3.d-1, a percentagem de remoção de CQO foi superior a 90%. Os resultados mais elevados registaram-se na carga 6,0 kgCQO.m-3.d-1, com valores próximos de 98%. Os valores de CQOsolúvel do efluente tratado nos diferentes reactores não ultrapassaram os 150 mg.L-1 até à carga 6,0 kgCQO.m-3.d-1, verificando-se um aumento significativo em cargas superiores. Concluiu-se que a recirculação de biomassa suspensa não exerce efeitos positivos na eficiência dos reactores, no entanto durante o período de arranque diminui significativamente o tempo de estabilização dos mesmos. ABSTRACT: The present study intended to evaluate the applicability of a MBBR reactor for the treatment of winery wastewaters. The wastewater originated in wine cellars strongly depends on the region and the type of wine processed and also its quantity and quality changes substantially during the year. The aims of this experimental study were to analyse the applicability of a MBBR reactor for the winery wastewater treatment operating with a hydraulic retention time of 24 hours, to compare the performance of reactors when different packing bed materials were used, to compare the performance of reactors with and without sludge recycling, and finally to examine the hydraulic behaviour of each reactor with and without biomass. Experiments were conducted with five lab-scale reactors where four had packing material, two operating with sludge recycling, two without it and a fifth reactor simulated a conventional activated sludge system. Two types of carrier elements were used, the Bioflow 9 and the Bioflow 40. The hydraulic flow models for the five reactors were determined recoursing to experimental studies with tracer elements in the presence and in the absence of biomass. Tracer studies demonstrated that the reactors filled with carrier elements had identical flow models and behaved as complete mixing reactors with dead spaces. The fraction of dead spaces decreases in experiments with biomass (35-36% of dead spaces to 10-12% of dead spaces), concluding that the degree of mixture improves in the presence of biomass. The activated sludge flow model was characterized, in both cases, as complete mixing reactor with dead spaces and short-circuiting with a slightly difference on the parameters in the presence of biomass (28% of dead spaces, 9% of short-circuiting to 26% of dead spaces and 10% of short-circuiting). In the present study it was verified that the limit operation conditions of the reactors were reached for a HRT of 24 h, 50% of the reactor volume packed with Bioflow 9 and a CODfeed= 8000 mg.L-1 (8,0 kgCOD.m-3.d-1). At this operational conditions the treated wastewater had a CODsoluble = 1500 mg.L-1 corresponding to a COD removal rate of 81%. It was also verified that for all the reactors and in all the operation conditions up to the organic load applied of 6,5 kgCOD.m-3.d-1, the COD removal rate was higher than 90%. The highest results were obtained at an organic load of 6,0 kgCOD.m-3.d-1 with values near 98%. The COD soluble values of the treated winery wastewater in the different reactors didn’t exceed 150 mg.L-1 up to an organic load of 6,0 kgCOD.m-3.d-1, and for higher loads a significant increase was verified. The sludge recycling doesn’t affect in a positive way the efficiency of the reactors, although during the start-up phase the reduction of the stabilization time was significant.
Lanko, Iryna. "Anaerobic acidification of cheese-whey in the MBBR reactor." Master's thesis, Universidade de Aveiro, 2011. http://hdl.handle.net/10773/7456.
Повний текст джерелаIn this study cheese-whey conversion into VFAs as a source for biopolymers production was investigated. Cheese-whey was chosen due to its high organic content being a by-product from the cheese production factory, as a part of valorisation methodology for industrial waste streams. Cheese-whey acidification process was used as an alternative to the waste treatment technologies. To study the acidification of cheese-whey, a set of experiments was carried out to produce short-chain volatile fatty acids (VFAs), in order to find out its ratio to the total chemical oxygen demand (tCOD) of feed present in the reactor. The proportional amounts of Acetic, Propionic and i-Butyric acids towards the rest of the VFAs were also important in order to evaluate the MBBR efficiency for different operational parameters such as hydraulic retention time (HRT), alkalinity and organic load rate applied (OLR). To fulfil these goals the mass balances of the system were performed. The maximum production rates of Acetic, Propionic and i-Butyric acids associated with simultaneous changes in OLR and alkalinity at a constant HRT of 12 h, were investigated (70% and 65% of total VFAs produced – at Phases 0 and 4, respectively). The degree of acidification of cheese-whey to the short-chain VFAs was about 33% and 27% of the influent COD concentration, at Phases 0 and 4, respectively. The optimum operational conditions under study where the maximum production rates of Acetic, Propionic and i-Butyric acids occurred were at an alkalinity of 3.6 gCaCO3/L and an OLR = 35 gCOD/L*d (Phase 4). At this optimum conditions for acids production, the average rate of COD removal was equal to 20% and the rate of methane production was equal to zero.
Reznák, Pavel. "Hypoteční zástavní listy (MBS) v USA." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-81640.
Повний текст джерелаSvensson, Niklas. "Fatigue Analysis with Loads from MBS." Thesis, KTH, Maskinkonstruktion (Inst.), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-168720.
Повний текст джерелаScania is a truck and bus developer. They believe that reliability, which is strongly associated with life length, has been critical in achieving a leading position and is key to retaining it. Therefore, there is a continuous drive to increase their capability to simulate life length, specifically fatigue. Additionally, the recent popularity of simulation driven product development has created an additional interest in performing simulations earlier in the product development process. This creates a challenge since it requires fatigue analyses to be performed before prototype vehicles are available. Since loads are required for fatigue analyses, one solution is to perform a multibody simulation (MBS) of a virtual prototype vehicle on a virtual test track and derive load cases.This thesis investigated the possibility of using loads derived from MBS simulations to perform fatigue analyses. Four different simulation methods which are currently used by Scania were evaluated with MBS loads instead of physically measured loads. By comparing the methods’ results to those of physical tests, the virtual methods with the greatest potential were identified. A chassis mounted inverter bracket was analyzed in this work. The component was modeled in Abaqus, a model which then was merged into a complete bus model in Adams. Next, this model was run as an MBS over the virtual test track and load data was extracted. The component was then analyzed with different fatigue analysis methods, with the data from the MBS used as input. The fatigue results were then compared with the results of a physical shake rig test of the same component.Two methods were found to be most promising: Dynamic simulation with PSD and Superposition of modal stresses. Interestingly, the fatigue estimation for these methods substantially differed from the outcome of the physical test. The component failed in the physical test but according to the simulation it should have survived. Upon further investigation, it was found that the component was subjected to higher loads in the shake rig than on the shake track. A fatigue simulation using the signal from the shake rig agreed with the outcome of the physical test, namely failure. Analysis using the figures from the test track gave values similar to the results for analyses with MBS loads.These results suggest that this type of virtual analysis has potential. But before more definite conclusions can be drawn further investigations with more than one component need to be performed. Another path of investigation is to look at why the shake rig test is more severe than the virtual shake track.
Pangallo, Kristin C. "Halogenated 1'-methyl-1,2'-bipyrroles (MBPs) in the Norwestern Atlantic." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/55159.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references.
Halogenated 1'-methyl-1,2'-bipyrroles (MBPs) are a distinctive class of marine organic compounds. They are naturally produced, they have a unique carbon structure, they are highly halogenated, and they bioaccumulate in upper trophic levels. MBPs share many characteristics with persistent organic pollutants (POPs), and may prove to be useful natural analogues for these anthropogenic compounds. Further, their unique structure suggests that their biosynthetic organism(s) may have new genes to add to current knowledge of biosynthetic chemistry. The objectives of this dissertation were to further clarify the environmental distribution of MBPs, to examine whether MBPs biomagnify, and to investigate possible origins of these compounds through their stable nitrogen isotopic signatures. Results from these investigations have shown that over 40 highly brominated MBP congeners are present in marine mammals, fish, and squid from the Northwestern Atlantic Ocean. The most abundant MBPs do appear to biomagnify through the food web to reach the concentrations observed in marine mammals. This additional evidence affords greater confidence in the use of MBPs as natural analogues for POPs. However, differences in the environmental chemistry of MBPs and anthropogenic compounds are also evident, and may be due to these compounds' different origins, or to the capacity of degradative enzymes to act upon them.
(cont.) Finally, compound-specific nitrogen isotope analyses on MBPs isolated from dolphin blubber show that these compounds are dramatically enriched in 15N relative to other biosynthetic organic compounds. This enrichment is likely a signal imparted during biosynthesis, and may assist in elucidating the organism(s) and mechanism(s) responsible for the biosynthesis of MBPs.
by Kristin C. Pangallo.
Ph.D.
Easter, Anna. "Preliminary testing of the modes of being present scale (MBPS) /." free to MU campus, to others for purchase, 1999. http://wwwlib.umi.com/cr/mo/fullcit?p9946253.
Повний текст джерелаEaster, Anna L. "Preliminary testing of the modes of being present scale (MBPS)." free to MU campus, to others for purchase, 1999. http://wwwlib.umi.com/cr/mo/fullcit?p9946253.
Повний текст джерелаHosseini, Hooshyar Sima. "Feasibiity analysis of MBMS deployment with the introduction of LTE." Thesis, KTH, Kommunikationsnät, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-134712.
Повний текст джерелаYang, Liunan. "Heterogeneous MBS forwarder modeling and co-simulation." Thesis, KTH, Maskinkonstruktion (Inst.), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176264.
Повний текст джерелаSkotaren har tillsammans med skördaren en central roll i den fullt mekaniserade kortvirkesmetoden för skogsavverkning. Majoriteten av dagens skotare på marknaden har sex eller åtta hjul, som är monterade parvis på boggilådor. Det innebär att de saknar chassidämpning, vilket begränsar operatörens komfort och orsakar även stora markskador på mjuk mark. Skogforsk koordinerar realiseringen av en fullskaleprototyp, som går under arbetsnamnet XT28, med sex hjul monterade på varsin pendelarm. Pendelarmarna har varsin hydraulcylinder som möjliggör aktiv helmaskinsdämpning. Detta examensarbete är inriktat på att skapa, demonstrera och verifiera en heterogen simuleringsmetodik, som integrerar och möjliggör samsimulering av en dynamisk mekanikmodell utvecklad i MSC Adams/View med en reglermodell för aktiv styrning av pendelarmarna. Reglermodellen har utvecklats i MATLAB / Simulink. Simuleringsresultaten, som visualiseras i Adams-miljön, visar att den aktiva pendelarmregleringen skulle kunna förbättra åkkomforten signifikant, och också kraftigt markkontaktkrafterna. Det visas att samsimulering mellan ADAMS och Simulink är en effektiv metod för att verifiera prestandan hos aktiva reglersystem för pendelarmsfjädring på prototypskotaren XT28.
Jonfelt, Clara. "An evaluation of an MBBR anammox model - sensitivity analysis and calibration." Thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-312511.
Повний текст джерелаCONAN
Davies, Emma [Verfasser]. "Charakterisierung der Teilchenausbreitung in einem Molekularstrahl eines MBMS-Systems / Emma Davies." Bielefeld : Universitätsbibliothek Bielefeld, 2019. http://d-nb.info/1197798080/34.
Повний текст джерелаO’Connell, Richard. "200 MBPS TO 1 GBPS DATA ACQUISITION & CAPTURE USING RACEWAY." International Foundation for Telemetering, 1997. http://hdl.handle.net/10150/607569.
Повний текст джерелаFor many years VME has been the platform of choice for high-performance, real-time data acquisition systems. VME’s longevity has been made possible in part by timely enhancements which have expanded system bandwidth and allowed systems to support ever increasing throughput. One of the most recent ANSI-standard extensions of the VME specification defines RACEway, a system of dynamically switched, 160 Mbyte/second board-to-board interconnects. In typical systems RACEway increases the internal bandwidth of a VME system by an order of magnitude. Since this bandwidth is both scaleable and deterministic, it is particularly well suited to high-performance, real-time systems. The potential of RACEway for very high-performance (200 Mbps to 1 Gbps) real-time systems has been recognized by both the VME industry and a growing number of system integrators. This recognition has yielded many new RACEway-ready VME products from more than a dozen vendors. In fact many significant real-time data acquisition systems that consist entirely of commercial-off-the-shelf (COTS) RACEway products are being developed and fielded today. This paper provides an overview of RACEway technology, identifies the types of RACEway equipment currently available, discusses how RACEway can be applied in high-performance data acquisition systems, and briefly describes two systems that acquiring and capturing real-time data streams at rates from 200 Mbps to 1 Gbps using RACEway.
Líčeník, Adam. "Výpočtové modelování dynamiky převodových ústrojí v prostředí MBS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-449784.
Повний текст джерелаGabarrón, Fernández Sara. "Diagnosis, assessment and optimisation of the design and operation of municipal MBRs." Doctoral thesis, Universitat de Girona, 2014. http://hdl.handle.net/10803/145434.
Повний текст джерелаAquesta tesi es centra en la diagnosi, avaluació i optimització del disseny i l’operació dels bioreactors de membranes (BRM) pel tractament d’aigües residuals. Concretament, l’estudi s’ha realitzat dins del marc de treball de set estacions depuradores d’aigües residuals (EDARs) municipals amb tecnologia BRM presents a Catalunya en col·laboració amb l’Agència Catalana de l’Aigua. Primerament s’ha dut a terme la diagnosi de l’estat del disseny i operació dels BRMs i s’han determinat les problemàtiques associades a aquesta tecnologia. Així mateix, s’han avaluat les estratègies d’optimització realitzades i els corresponents costos d’operació. A partir de la diagnosis realitzada, dos dels principals problemes operacionals observats s’han caracteritzat i optimitzat: El ragging i l’optimització de l’eliminació biològica de nitrogen i dels costos d’operació. La recerca presentada en aquesta tesi ha permès diagnosticar l’estat dels BRMs, alhora que ha mostrat possibles vies d’optimització que permetran millorar l’operació i els costos associats a aquesta tecnologia
Soleimani, Karizmeh Mohsen. "Investigation of Biologically-produced Solids in Moving Bed Bioreactor (MBBR) Treatment Systems." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23494.
Повний текст джерелаBoyle, Kellie. "Optimization of Moving Bed Biofilm Reactor (MBBR) Operation for Brewery Wastewater Treatment." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39147.
Повний текст джерелаArabgol, Raheleh. "MBBR Produced Solids: Particle Characteristics, Settling Behaviour and Investigation of Influencing Factors." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/41919.
Повний текст джерелаBill, Karen Alexandra. "Evaluation of Alternative Electron Donors for Denitifying Moving Bed Biofilm Reactors (MBBRs)." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/32597.
Повний текст джерелаMaster of Science
Bayley, Gwain. "PC-based bit error rate analyser for a 2 Mbps data link." Thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/23153.
Повний текст джерелаBergqvist, Liv. "Förbehandling av skogsindustriellt avloppsvatten i pilotskala : Fluidiserad biofilmsprocess, robust försteg till luftad damm." Thesis, Karlstads universitet, Institutionen för ingenjörs- och kemivetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-43563.
Повний текст джерелаPaper mill wastewater passes through several different purification steps before being reintroduced to the recipient. Stora Enso paper mill in Skoghall uses an aerated lagoon with sludge recirculation as biological treatment. Extractives in wastewater aggravates the aeration in the pond and problems with the purification can occur when stricter emission requirements needs to be followed from 2018. Stora Enso is now running an investment project to improve the efficiency of the wastewater treatment to enable future production growth while stricter emission standards are followed. A pre-treatment step before the aerated lagoon designed as a MBBR (Moving Bed Biofilm Reactor) will be analyzed to present whether it can ease the wastewater treatment in the aerated lagoon or not. If so, production growth could be possible without change the present aerated lagoon while emissions conditions are met. This is a further investigation from Karin Arvsells work that studied a MBBR and aerated lagoon in lab scale. Large differences between these studies are that the wastewater goes to the pre-treatment continuously and the temperature is not regulated. A pilot plant was built at Stora Enso Skoghall mill where a Cipax-tank was used as a reactor and an aerator was built with membrane from the aerated lagoon. A partial flow of the total wastewater flow to the aerated lagoon was passed to the reactor at the bottom of the tank. The incoming wastewater and the aerator mixed 800 liters of water with the microorganisms growing as a biofilm on the carriers. The hydraulic retention time was controlled with a manual valve. TOC- and chlorate reduction, extractives, nitrogen, phosphorus, suspended solids, temperature, VFA, SVI, EDTA, HRT and oxygen content are analyzed to find out how robust the pre-treatment is. Tests were made to analyze how effective the oxygen dissolves after a pre-treatment and to identify the microorganisms in the wastewater. The experiments were divided into three different periods. Under the first 19 days was trial 1 performed where the water reacted in the MBBR without carriers. Trial 2 was 45 days long and the wastewater was pre-treated with microorganisms growing on carriers. Trial 3 lasted for 16 days and then the wastewater was treated in an isolated tank with carriers. The design of trial 3 was a result of the test results from trial 2 where the temperature dropped significantly during the hours the wastewater was treated in the reactor. Trial 2 showed reduction of all parameters with an average reduction of 40 % of TOC and 86 % reduction of chlorate. Surface tension analysis demonstrated a higher surface tension after the pre-treatment step which indicates that extractives were decomposed. The higher surface tension will ease the aeration in the aerated lagoon which was shown in the aeration tests were the rate of oxygen transport was doubled. Both free-swimming organisms and protozoa were found in the water. At the start of trial 3 the production of CTMP and the bleaching process were stopped. As a result, the remaining wastewater had a temperature of 51°C. The high temperature and the changed content of the wastewater at the same time as the reactor was isolated resulted in an elimination of the microorganisms. Chlorate was reduced by 93 % and TOC by 19 %. The reductions of the other parameters were lower than before and the aeration trials showed no improvement in oxygen transport. The reduction varied from day to day but since reasonable causes are known, the results are considered reliable. This means that a biological pre-treatment step in form of a MBBR can ease the purification in the aerated lagoon. Extractives are decomposed during the short reaction time and the oxygen transport is duplicated. If the production is disrupted, thermophilic conditions may occur instead of mesophilic conditions which are the normal setting. This may eliminate the microorganisms which affect the wastewater treatment negatively. To solve the problem, the hot water could be led directly to the aerated lagoon or by cooling the water keep the incoming temperature under 45°C.
Baus, Matthias. "Technologische Konzepte zur Herstellung von monolithischen bidirektionalen Schaltern (MBS) /." Aachen : Shaker, 2007. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016472804&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Повний текст джерелаHromádka, Adam. "Dynamika rotoru turbodmychadla s kluznými ložisky na bázi MBS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231714.
Повний текст джерелаFujii, Fábio Yugo. "Análise comparativa entre o processo de lodo ativado e o reator de biofilme de leite móvel na remoção de nitrogênio de esgoto sanitário." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/3/3147/tde-12122011-134438/.
Повний текст джерелаThe activated sludge wastewater treatment process can be retrofitted to either receive larger organic loads or for nitrogen removal by introducing plastic media carriers, in a process known as IFAS Integrated Fixed-Film Activated Sludge. The project aims to comparatively assess the performances of activated sludge and IFAS systems in removing organic matter and nitrogen from domestic sewage, associated to the variation of the sludge age with reference to the suspended biomass. The effect of adding plastic media carriers on existing activated sludge systems is evaluated as a subsidy for prefeasibility analysis of using this solution for the upgrading and retrofitting of municipal wastewater treatment plants. The study was developed on a pilot scale, operating two systems in parallel, representing an activated sludge system with nitrogen removal and another identical system except for the introduction of plastic media carriers. Thus, it was possible to assign the difference in results to the presence of attached biomass. Carriers were used with 300 m²/m³ specific surface area and 50% filling fraction. Both systems were kept under stable and efficient operation considering the removal of organic matter. However, the IFAS system had better performance at removing nitrogen in all experimental phases, confirming the anticipated advantages. The results were verified in terms of application rates expected for each portion of biomass in accordance with the sludge ages studied.
Young, Bradley. "Nitrifying MBBR Performance Optimization in Temperate Climates Through Understanding Biofilm Morphology and Microbiome." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/36001.
Повний текст джерелаForrest, Daina. "Tertiary Nitrifying Moving Bed-Biofilm Reactor: A Study of Carrier and Loading Effects on Nitrifying Kinetics, Biologically Produced Solids and Microbial Community." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31425.
Повний текст джерелаKjellsdotter, Frida. "MBS-modelling of a heavy truck : Modelling and model validation." Thesis, KTH, Fordonsdynamik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-32076.
Повний текст джерелаPykal, Vojtěch. "Výpočtové modelování dynamiky záběru čelního ozubeného soukolí v prostředí MBS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-445163.
Повний текст джерелаAbtahi, Foroushani Seyed Mehran. "Towards tertiary micropollutants removal by bioaugmented moving bed biofilm reactors (MBBRs) and nanofiltration (NF)." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30065.
Повний текст джерелаThis thesis aims at answering whether the concept of an integrated layout comprised of a coupled "bioaugmented moving bed biofilm reactors (bMBBRs) - polyelectrolyte multilayer (PEM)-based nanofiltration (NF) membrane" can be considered as a promising technology to eliminate target MPs from conventionally-treated municipal wastewater. Results presented herein indicate that each given component of the layout is efficient in the tertiary removal of MPs. Still, several challenges ahead of the process bioaugmentation (such as the survival and maintenance of inoculated strains) must be in-depth studied to find convenient operating solutions. On the other hand, further investigations are definitely needed to achieve a robust PEM-based membrane as a long-lasting technology. Even though a coupled bMBBR-NF system for enhanced MPs removal can be experimentally justified is, however, practically questionable. "The tale of bMBBR-NF" deserves much more scientific endeavors as plenty of environmental considerations are placed in, whereby achieving a future Green technology will not be far from our expectation
Sevaille, Laurent. "Inhibition de métallo-B-lactamases (MBLs) pour lutter contre la résistance bactérienne aux antibiotiques." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS136.
Повний текст джерелаThe spread of multiresistant Gram negative bacteria is a growing threat to public health and the risk of return to the pre-antibiotic era is real. Among existing resistance modes, the production of metallo-B-lactamases (MBLs) responsible of the inactivation of B-lactams, the most used family of antibiotics, represents a therapeutical challenge.This manuscript describes the synthesis, characterization and biological evaluation of compounds built on a 2,4-dihydro-3H-1,2,4-triazole-3-thione scaffold substituted on two positions. Based on previous in silico screening and crystallographic studies, which identified this structure as a good candidate for MBLs inhibition, several series have been developed to found new inhibitors that could potentially be amenable to clinical development.First, 1,2,4-triazole-3-thione compounds substituted at position 5 have been prepared following classical pathways. Then, several series have been developed where the structural and functional diversity was introduced at position 4. Compounds have been tested on representative MBLs of the three sub-classes and the most interesting ones on recombinant resistant bacteria.To perform a rapid screening of compounds in the laboratory, a method of medium throughput screening inhibition tests on five MBLs performed in 96-wells plate has also been developed and validated during this study with the help of our collaborators specialists of MBLs
Baus, Matthias [Verfasser]. "Technologische Konzepte zur Herstellung von Monolithischen Bidirektionalen Schaltern (MBS) / Matthias Baus." Aachen : Shaker, 2007. http://d-nb.info/1166512142/34.
Повний текст джерелаSturrock, A. "The assessment of proton MBS as a biomarker for Huntington disease." Thesis, University College London (University of London), 2015. http://discovery.ucl.ac.uk/1460415/.
Повний текст джерелаBaek, Jee hee. "Real estate securitization in Korea : application of PF ABS and MBS." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/129106.
Повний текст джерелаCataloged from student-submitted PDF of thesis.
Includes bibliographical references (pages 54-55).
This thesis studies the application of securitization such as Project Finance Asset-Backed Securities (PF ABS) and Mortgage Backed Securities (MBS) as a method of real estate finance in Korea. Real estate in Korea has developed substantially with a remarkable economic growth in last 20 years. As real estate became one of the most popular investment methods, real estate finance also developed into a more diversified and complex structure. Real estate securitization provides an alternative to the traditional way of financing by liquidating the real estate related assets and makes access easier for all participants in the process. In Korea, real estate securitization was first adopted in 1999, with the initiation of the Asset Securitization Act. Though the concept of Asset-Backed Securities (ABS) started late compared to the global securitization industry, the Korean ABS market has grown so substantially that the total issuance amount reached $43 billion in 2019, having expanded by almost eight-fold from the beginning of the market in 1999. With a considerable progress in the market, some of securitization products have developed with distinctive features. Of many products, this thesis mainly studies two types of real estate securitization products, Project Finance Asset-backed Securities (PF ABS) and Mortgage-backed Securities (MBS). By going through the market trends and social context of both products, it will cover what can be suggested for further improvement of the real estate finance market in Korea
by Jee hee Baek.
S.M. in Real Estate Development
S.M.inRealEstateDevelopment Massachusetts Institute of Technology, Program in Real Estate Development in conjunction with the Center for Real Estate
Frehse, Nico [Verfasser]. "Innen- und Außenhaftung der PartG mbB und ihrer Partner. / Nico Frehse." Berlin : Duncker & Humblot, 2018. http://d-nb.info/1238485391/34.
Повний текст джерелаSultana, Razia. "Partial Nitration/anammox process in the moving bed biofilm reactor operated at low temperatures." Licentiate thesis, KTH, Mark- och vattenteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-145324.
Повний текст джерелаMazurek, Agnieszka. "Nitrous oxide emissions from deammonification process under different operation conditions." Thesis, KTH, Mark- och vattenteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-180283.
Повний текст джерелаAbuzaid, Abdulmonem Ali. "Susceptibility and bactericidal activity of five biocides on Klebsiella pneumoniae and its association with efflux pump genes and antibiotic resistance." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8822.
Повний текст джерелаUndin, Klara. "Vattenrening i textilåtervinningsindustri : Reducering av nonylfenol, bromerade flamskyddsmedel och sulfat i re:newcells processvatten." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-78765.
Повний текст джерелаClothes and textiles are increasingly produced and consumed causing a major impact on the environment, the climate and the earth's resources. One solution to the problem is to recycle clothes that are no longer used, which is what the company re:newcell does. This is a feasibility study aimed at investigating what purification methods re:newcell could implement to improve their water purification process in the future. Three substances not currently purified sufficiently were selected for the study: nonylphenol, brominated flame retardants and sulfate. A literature review on these substances and possible purification methods for them resulted in that the following methods were selected for the study: ozonation, biological purification and ion exchange. An experimental plan was developed with the aim of finding out (1) how previously reported ozone doses affected the nonylphenol content in re:newcell's water, (2) how much TOC an MBBR (moving body bioreactor) could reduce, (3) and whether the levels of brominated flame retardants and sulphate were possible to reduce in it, (4) the required size of the ion exchange filter in re:newcells process to reduce sulfateand (5) the order in which the purification steps should be implemented in future purification processes. Ozonation experiments were carried out at re:newcell's laboratory in Kristinehamn with a total of five different ozone doses tested. A biological MBBR was designed in a laboratory at Karlstad University, where two different hydraulic retention times were tested for reducing flame retardants, sulfate and TOC. Calculations on ion exchange filters were performed theoretically. An ozone dose of 0.45 mgO3/mgCOD produced a reduction of about 31% and 0.75 mgO3/mgCOD produced a 78% reduction at a nonylphenol content of 1100 µg / L The results from MBBR showed that bacteria thrived in re:newcell´s water and that they can reduce TOC by about 50 %. However, reduction of sulfate could be measured, suggesting that no anaerobic zone has occured. The content of PBDE was reduced by about 90% with a hydraulic retention time of 45 hours in MBBR, but whether it is due to degradation or adsorbation to the sludge is not determined. The calculation regarding the ion exchange filter show that the filter needs to be 5,7-15 m3 when regenerated once a day in re:newcell's current pilot scale process this method is therefore not considered appropriate for sulfate reduction for re:newcell. The future purification process is proposed to start with MBBR and subsequent sedimentation, followed by chemical precipitation, sedimentation / flotation, sand filter, ozonation and last activated carbon filter, but further studies are recommended regarding which order the purification steps should be implemented for optimal effect. Further studies on which ozone dose is required and which residence time is optimal in MBBR are also suggested.
Kokeš, Roman. "Multicastové směrování v UMTS sítích." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217544.
Повний текст джерела