Relevant bibliographies by topics / RaMV

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  2. Dissertations / Theses
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Academic literature on the topic 'RaMV'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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Journal articles on the topic "RaMV"

1

Farzadfar, S., R. Pourrahim, A. R. Golnaraghi, S. Jalali, and A. Ahoonmanesh. "Occurrence of Radish mosaic virus on Cauliflower and Turnip Crops in Iran." Plant Disease 88, no. 8 (August 2004): 909. http://dx.doi.org/10.1094/pdis.2004.88.8.909a.

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During the spring and summer of 2003, symptoms of mosaic, mottle, and crinkle were observed in cauliflower (Brassica oleracea) and turnip (Brassica rapa) fields in the Qazvin and Esfahan provinces of Iran, respectively. Leaf extracts of these plants, made infective by mechanical inoculation, caused necrotic local lesions on Chenopodium amaranticolor, chlorotic ring spot on Nicotiana tabacum cv. Samsun, and chlorotic local lesions followed by systemic mosaic on Brassica rapa (1). Using double-antibody sandwich enzyme-linked immunosorbent assay (DAS-ELISA) and specific polyclonal antibodies (As-0120 and PV-0355) that were kindly prepared by S. Winter (DSMZ, Braunschweig, Germany), the samples were tested for the presence of Radish mosaic virus (RaMV) (family Comoviridae, genus Comovirus). ELISA results showed that the original leaf samples and inoculated indicator plants reacted positively to RaMV antibodies. RaMV has been reported in the United States, Japan, and Europe on turnip and other crucifers (1,2). To our knowledge, this is the first report of RaMV occurring in Iran. References: (1) R. N. Campbell. Radish mosaic virus. No. 121 in: Descriptions of Plant Viruses. CMI/AAB, Surrey, England, 1973. (2) D. D. Sutic et al. Handb. Plant Virus Diseases. CRC Press, Boca Raton, FL, 1999.
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Li, Zhengming, and Chunxiao Chigan. "RAMV: ensuring resource-aware message verification in VANETs." Security and Communication Networks 4, no. 7 (February 8, 2011): 771–84. http://dx.doi.org/10.1002/sec.266.

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Estrada Pineda, Cristina, Juan Bautista Herrero Olaizola, and Francisco Javier Rodríguez Díaz. "La red de apoyo en mujeres víctimas de violencia contra la pareja en el estado de Jalisco (México)." Universitas Psychologica 11, no. 2 (July 21, 2011): 523–34. http://dx.doi.org/10.11144/javeriana.upsy11-2.ramv.

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El objetivo de este trabajo es identificar las características del apoyo social informal otorgado a la mujer maltratada por su pareja íntima, quiénes lo aportan, así como el tipo de apoyo percibido por las entrevistadas. Es un estudio cuantitativo realizado en Guadalajara, Jalisco, en el que se aplicó el Cuestionario de Apoyo Social Percibido de las Fuentes de Apoyo (Gracia & Herrero, 2004) a 204 mujeres maltratadas por su pareja. Los resultados del análisis de cluster mostraron que el tipo más frecuente de red de apoyo presentaba a los amigos como principal fuente de apoyo. Otros tipos de red de apoyo encontradas en este estudio fueron: familia de origen, compuesta principalmente por padre, madre y hermanos(as) y pareja e hijos (que incluía en algunas mujeres al agresor como fuente de apoyo).
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Hashimoto, Masayoshi, Ken Komatsu, Ryo Iwai, Takuya Keima, Kensaku Maejima, Takuya Shiraishi, Kazuya Ishikawa, et al. "Cell Death Triggered by a Putative Amphipathic Helix of Radish mosaic virus Helicase Protein Is Tightly Correlated With Host Membrane Modification." Molecular Plant-Microbe Interactions® 28, no. 6 (June 2015): 675–88. http://dx.doi.org/10.1094/mpmi-01-15-0004-r.

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Systemic necrosis is one of the most severe symptoms caused by plant RNA viruses. Recently, systemic necrosis has been suggested to have similar features to a defense response referred to as the hypersensitive response (HR), a form of programmed cell death. In virus-infected plant cells, host intracellular membrane structures are changed dramatically for more efficient viral replication. However, little is known about whether this replication-associated membrane modification is the cause of the symptoms. In this study, we identified an amino-terminal amphipathic helix of the helicase encoded by Radish mosaic virus (RaMV) (genus Comovirus) as an elicitor of cell death in RaMV-infected plants. Cell death caused by the amphipathic helix had features similar to HR, such as SGT1-dependence. Mutational analyses and inhibitor assays using cerulenin demonstrated that the amphipathic helix–induced cell death was tightly correlated with dramatic alterations in endoplasmic reticulum (ER) membrane structures. Furthermore, the cell death–inducing activity of the amphipathic helix was conserved in Cowpea mosaic virus (genus Comovirus) and Tobacco ringspot virus (genus Nepovirus), both of which are classified in the family Secoviridae. Together, these results indicate that ER membrane modification associated with viral intracellular replication may be recognized to prime defense responses against plant viruses.
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Cáceda Quiroz, César Julio, and Sergio Enrique Samillán Fernández. "CALIDAD MICROBIOLÓGICA DE PRODUCTOS NATURALES ENCAPSULADOS EXPENDIDOS EN CASAS NATURISTAS DE LA CIUDAD DE TACNA." Ciencia & Desarrollo, no. 20 (May 3, 2019): 36–41. http://dx.doi.org/10.33326/26176033.2015.20.510.

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Los productos naturales están teniendo una gran acogida en todas partes del mundo, incluido el Perú, debido a esta gran demanda se han creado muchos laboratorios que los fabrican, no obstante no todos ellos elaboran productos de calidad, y muchos de ellos venden sus productos sin tener un registro sanitario; trabajos de investigación han revelado la presencia de contaminación en productos farmacéuticos de origen natural, siendo esta la razón por la cual se plantea el siguiente objetivo: Determinar la calidad microbiológica de los productos naturales expendidos en la ciudad de Tacna; y para ello se basó en los límites propuestos por la Organización Mundial de la Salud (OMS), siguiendo el protocolo de la ICMSF (2000) donde se evaluó el recuento de aerobios mesófilos viables (RAMV), recuento de hongos, investigación de Escherichia coli, investigación de Pseudomonas aeruginosa, investigación de Staphylococcus aureus y para el caso de Salmonella spp se usó la guía de los estándares internacionales según ISO 6579; donde se obtuvieron como resultados: ausencia de todos los patógenos pero en el RAMV se encontró que el 84,61% de las muestras sobrepasaron los límites permisibles, al igual que el 92,3% en el recuento de hongos; asimismo el 30,77% de las muestras analizadas no presentaron número de registro sanitario. De lo encontrado se llegó a la conclusión de que los productos naturales analizados no cuentan con las condiciones mínimas para su venta al público, siendo un riesgo para la salud pública de sus consumidores al poder enfermarse con posibles patógenos oportunistas por una contaminación de origen natural.
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Chen, Y. K., Y. S. Chang, and H. J. Bau. "First Report of Turnip ringspot virus in Field Mustard (Brassica chinensis) in Taiwan." Plant Disease 95, no. 8 (August 2011): 1036. http://dx.doi.org/10.1094/pdis-03-11-0224.

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Crucifer crops (Brassica spp.) are important winter vegetables in Taiwan. Five viruses, including Turnip mosaic virus (TuMV), Cucumber mosaic virus (CMV), Radish mosaic virus (RaMV), Beet western yellows virus (BWYV), and Cauliflower mosaic virus (CaMV), have been detected in a range of domestic-grown crucifers during past decades (1). Field mustard plants (Brassica chinensis) showing mosaic in the leaves were collected in the ChiaYi area in December 2007. Spherical virus-like particles, approximately 30 nm in diameter, were readily observed in crude sap of symptomatic plants. Tests by ELISA failed to detect any of the aforementioned viruses. A spherical agent was isolated through mechanical inoculation onto Chenopodium quinoa, and a virus culture was established and inoculated mechanically back to the original host as well as other crucifers. Systemic mosaic appeared on inoculated B. campestris, B. chinensis, and B. juncea, whereas ringspots appeared on inoculated leaves of B. oleracea. Total RNA was extracted from symptomatic leaves and used for reverse transcription (RT)-PCR amplification using degenerate primers for comoviruses (2). Other successive fragments of RNAs 1 and 2 were amplified by specific or degenerate primers designed on the basis of sequences of published Turnip ringspot virus (TuRSV). The RNA 1 (GenBank Accession No. GU968732) and RNA 2 (No. GU968731) of the isolated virus consisted of 6,076 and 3,960 nucleotides, respectively. The number of nucleotides and the arrangement of open reading frames on both RNA 1 and RNA 2 were similar to those of comoviruses. Sequence analysis revealed that the nucleotide sequences of RNA 1 and RNA 2 shared 54.2 to 82.5% and 50.2 to 79.3% similarities, respectively, to those of comoviruses and were most similar to Turnip ringspot virus. The deduced peptides of large and small coat proteins (LCP and SCP) contain 375 amino acids (41.2 kDa) and 251 amino acids (28.5 kDa), respectively. The deduced amino acid sequences of RNA-dependent RNA polymerase (RdRp), LCP, and SCP share 92.0 to 94.5%, 93.1 to 93.3% and 87.3 to 89.6% similarity, respectively, to those of published TuRSV isolates, i.e., -B (GenBank Accession No. GQ222382), -M12 (No. FJ516746), and -Toledo (No. FJ712027) indicating that the newly isolated virus from field mustard in Taiwan is an isolate of TuRSV, hence TuRSV-TW. Comparison of LCP and SCP between current TuRSV-TW and Radish mosaic virus (RaMV; GenBank Accession No. AB295644) showed 74% similarity, which is below the species demarcation level of 75% (3), indicating its discrimination from RaMV. To our knowledge, this is the first report of the occurrence of TuRSV in Taiwan and in the subtropics. References: (1) T. H. Chen et al. Plant Pathol. Bull. 9:39, 2000. (2) V. Maliogka et al. J. Phytopathol. 152:404, 2004. (3) K. Petrzik and I. Koloniuk. Virus Genes 40:290, 2010.
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Arif, Muhammad, Saif ul Islam, Saqer S. Alotaibi, Ahmed M. Elshehawi, Mohamed A. A. Ahmed, and Abdullah M. Al-Sadi. "Infectious clone construction and pathogenicity confirmation of Cotton leaf curl Multan virus (CLCuMuV), Ramie mosaic virus (RamV) and Corchorus yellow vein Vietnam virus (CoYVV) by southern blot analysis." PLOS ONE 16, no. 5 (May 14, 2021): e0251232. http://dx.doi.org/10.1371/journal.pone.0251232.

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Geminiviruses are insect-transmissible, economically vital group of plant viruses, which cause significant losses to crop production and ornamental plants across the world. During this study, infectious clones of three devastating begomoviruses, i.e., Cotton leaf curl Multan virus (CLCuMuV), Ramie mosaic virus (RamV) and Corchorus yellow vein Vietnam virus (CoYVV) were constructed by following novel protocol. All infectious clones were confirmed by cloning and sequencing. All of the infectious clones were agro-inoculated in Agrobacterium. After the agro-infiltrations, all clones were injected into Nicotiana benthamiana and jute plants under controlled condition. After 28 days of inoculation, plants exhibited typical symptoms of their corresponding viruses. All the symptomatic and asymptomatic leaves were collected from inoculated plants for further analysis. The southern blot analysis was used to confirm the infection of studied begomoviruses. At the end, all the products were sequenced and analyzed.
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Keijser, Bart J. F., Gilles P. van Wezel, Gerard W. Canters, and Erik Vijgenboom. "Developmental Regulation of the Streptomyces lividans ram Genes: Involvement of RamR in Regulation of the ramCSAB Operon." Journal of Bacteriology 184, no. 16 (August 15, 2002): 4420–29. http://dx.doi.org/10.1128/jb.184.16.4420-4429.2002.

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ABSTRACT Streptomycetes are filamentous soil bacteria that produce spores through a complex process of morphological differentiation. The ram cluster plays an important part during the development. The ram genes encode a membrane-bound kinase (RamC), a small protein (RamS), components of an ABC transporter (RamAB), and a response regulator (RamR). While the introduction of an extra copy of the ram cluster accelerates development in Streptomyces lividans, ramABR disruption mutants are unable to produce aerial hyphae and spores. The developmental regulation of ram gene transcription was analyzed. Transcription of the ram genes occurred only on solid rich media and not on minimal media. The ramR gene is transcribed from a single promoter during all growth stages, with the highest levels during aerial growth. The ramCSAB genes comprise one operon and are transcribed from one principal promoter, P1, directly upstream of ramC. Transcription of ramCSAB was already observed during vegetative growth, but was strongly upregulated upon initiation of formation of aerial hyphae and was decreased during late stages of development. A large inverted repeat located downstream of ramS terminated the majority of transcripts. The introduction of ramR on a multicopy vector in S. lividans strongly induced P1 activity, while disruption of this regulator eliminated all P1 promoter activity. This shows that ramR is a crucial activator of ramCSAB transcription. Importantly, in bldA, bldB, bldD, or bldH mutants, ramR and ramCSAB are not transcribed, while ram gene transcription was observed in the earliest whi mutant, whiG. This indicates that the transcription of the ram genes marks the transition from vegetative to aerial growth.
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Akinay, Yüksel, and Fatih Hayat. "Synthesis and microwave absorption enhancement of BaTiO3 nanoparticle/polyvinylbutyral composites." Journal of Composite Materials 53, no. 5 (July 12, 2018): 593–601. http://dx.doi.org/10.1177/0021998318788144.

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Barium titanate (BaTiO3)-polyvinyl butyral (PVB) composites at various weight concentrations were prepared via ultrasonic probe sonicator. The sonication was carried out at 20 kHz and 70% amplitude for about 2 h and BaTiO3 nanoparticles were dispersed well in the mixture of PVB/ethanol under probe sonication. As a microwave absorbent, the microwave absorbing properties of the BaTiO3 nanoparticle-PVB composites with different mixture ratios of 5 wt.% (RAM1), 10 wt.% (RAM2) and 15 wt.% (RAM3) BaTiO3 were investigated based on transmission line theory in the frequency range from 1 GHz to 14 GHz. The minimum reflection loss (RL) of the RAM1 reaches −3.47 dB at 5.57 GHz with a matching thickness of only 7.0 mm. For RAM2 with 4 mm and 4.2 mm thickness ( tm), the RL values are less than −10 dB obtained in the frequency 10.3–13.4 GHz. The RAM3 composite with 15 wt.% BaTiO3 mixture ratio shows a minimum reflection loss of −43.8 dB at 11.01 GHz with a −15 dB bandwidth over the extended frequency range of 10.2–13.2 GHz for a thickness of 2.8 mm and −44.2 dB at 4.77 GHz for a thickness of 6.5 mm.
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Seibold, Gerd M., Christian T. Hagmann, Melanie Schietzel, Denise Emer, Marc Auchter, Joy Schreiner, and Bernhard J. Eikmanns. "The transcriptional regulators RamA and RamB are involved in the regulation of glycogen synthesis in Corynebacterium glutamicum." Microbiology 156, no. 4 (April 1, 2010): 1256–63. http://dx.doi.org/10.1099/mic.0.036756-0.

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When grown in glucose-, fructose- or sucrose-containing medium, the amino acid producer Corynebacterium glutamicum transiently accumulates large amounts of glycogen (up to 10 % of its dry weight), whereas only a marginal amount of glycogen is formed during growth with acetate. This carbon-source-dependent regulation is at least partially due to transcriptional control of glgC, encoding ADP-glucose pyrophosphorylase, the first enzyme of glycogen synthesis from glucose-1-phosphate. Here, we have analysed a possible regulatory role for the transcriptional regulators RamA and RamB on glycogen content of the cells and on control of expression of glgC and of glgA, which encodes the second enzyme of glycogen synthesis, glycogen synthase. Determination of the glycogen content of RamA- and RamB-deficient C. glutamicum indicated that RamA and RamB influence glycogen synthesis positively and negatively, respectively. In accordance with the identification of putative RamA and RamB binding sites upstream of glgC and glgA, both regulators were found to bind specifically to the glgC–glgA intergenic promoter region. Promoter activity assays in wild-type and RamA- and RamB-deficient strains of C. glutamicum revealed that (i) RamA is a positive regulator of glgC and glgA, (ii) RamB is a negative regulator of glgA and (iii) neither RamA nor RamB alone is responsible for the carbon-source-dependent regulation of glycogen synthesis in C. glutamicum.
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Dissertations / Theses on the topic "RaMV"

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Ozzetti, Marta Regina. "João Dias Carrasqueira: um mestre da flauta." Universidade Federal de Minas Gerais, 2006. http://hdl.handle.net/1843/RAMO-78AKTD.

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The aim of this work is to register and document the most important aspects of the life and work of João Dias Carrasqueira as a pioneer of the flute teaching in Brazil. It is based in a series of interviews given by João Dias Carrasqueira to the author of this work during the year of 1993, where he reports to his life as musician and a master of the flute. Interviews with other people connected to him have also been performed. Firstly, a brief biography of João Dias Carrasqueira is presented, refering to his nickname as Canarinho da Lapa, his first flute lessons and his professional activites as flutist in the cinema orchestras, during the years of 1920, and in the radios of São Paulo during the years of 1930. Emphasys is given to the ideas of João Dias Carrasqueira applied to the flute teaching and the connection to the ideas of other masters of pedagogy such as P.Freire, K.Swanwick, V.Gainza, and musicists like V. Lobos. The practice of chamber music and the formation of groups of students to play together were important features of his teaching process. João Dias Carrasqueira was one of the first flute teachers to introduce the Brazilian music repertoire into flute teaching. At last but not least we decribe his work developed with the children teaching, which involved the creation of drawings with the musical notes, of histories, and the image of little songs composed by him to the students. On the technical point of view, the sonority was of most importance for João Dias Carrasqueira. He stimulated the practice of exercises in order to improve the quality of the sound, always taking into account the individual characteristics of each student. Finally, we explore the meaning the expression Flautosofia created by João Dias Carrasqueira to manifest his attitude facing life and music.
Este trabalho pretende registrar e documentar os aspectos mais importantes da biografia do professor João Dias Carrasqueira como flautista e pioneiro ensino da flauta no Brasil. Foi baseado em uma série de depoimentos do professor João Dias Carrasqueira recolhido durante o ano de 1993, onde ele relata sua vida como músico e mestre da flauta. Além dos depoimentos do professor João Dias Carrasqueira também foram feitas entrevistas e tomados depoimentos de várias pessoas a ele ligadas.Inicia-se com uma breve biografia, fazendo referência ao cognome Canarinho da Lapa, as primeiras lições de flauta transversal, os primeiros trabalhos profissionais em orquestras de cinema da década de 1920, e a partir da década de 1930, em emissoras de rádio, além de um relato de seu importante trabalho como flautista. Enfatizamos suas idéias aplicadas ao ensino de flauta, fazendo um paralelo com as idéias de outros educadores como Paulo Freire, K.Swanwick e V.Gainza e mestres da música como H.Villa-Lobos, no que se refere à utilização de elementos da própria cultura como veículo de aprendizagem. A utilização da música de câmara e o convívio permanente entre alunos são aspectos relevantes do seu processo de aprendizagem. João Dias Carrasqueira foi um dos primeiros a incluir o repertório de música brasileira no ensino de flauta. Ainda estão relacionados os recursos pedagógicos utilizados por ele com alunos iniciantes e principalmente com crianças como criação de desenhos, histórias e canções.Do ponto de vista técnico, a sonoridade era o aspecto de maior importância para o professor João Dias Carrasqueira. Ele estimulava a prática de exercícios que visassem o aperfeiçoamento da qualidade sonora, sempre respeitando as características individuais de cada estudante. Por último, nós exploramos o significado da expressão Flautosofia criada por João Dias Carrasqueira para manifestar a sua atitude diante da música e da vida.
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Coyco, Ordemar Priscilla Greys, Vidal Angy Olga Estrada, Castro Leonardo Martín Gutiérrez, Céspedes Héctor Mendieta, and Reátegui Michael Reategui. "Ramo de Maquillaje Phalm." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2018. http://hdl.handle.net/10757/625363.

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PHALM, ubicado en el distrito de San Miguel en Lima, muestra en este proyecto como, utilizando productos de gama media para su elaboración, se podría armar "ramos de maquillaje" de manera original e innovadora. Este proyecto nace debido al objetivo de cubrir las necesidades del distrito de San Miguel y otros distritos aledaños. También se busca ser la mejor opción como regalo, pudiendo elegir la variedad de productos según el estilo de cada cliente, ya que estos se caracterizan por su calidad y buen precio. Adicional a los beneficios ya expuestos, los productos de PHALM estarán conservados en un almacén en óptimas condiciones, todo ello garantizará su buen estado al momento de la compra y lo hace ser un maquillaje apto para su aplicación y disfrute. Por ser nuevos en el mercado, según los cálculos realizados, nuestro negocio es rentable en el tiempo, por el motivo que tenemos una TIR de 50.06% y un VAN de S/ 130,872.63 correspondiente a nuestros indicadores económicos, a su vez, tenemos una TIRF de 63.04% y un VAN de S/ 125,167.63 correspondiente a nuestros indicadores financieros, en donde se puede ver que su recuperación de inversión es en 2.8 y 2.31 años tanto al flujo económico y flujo financiero respectivamente. Cabe mencionar que este producto corresponde a un mercado demandado, pues los varones y mujeres lo pueden comprar y consumir fácilmente.
PHALM, located in the district of San Miguel in Lima, shows in this project how, using mid-range products for its elaboration, "makeup bouquets" could be assembled in an original and innovative way. This project was born due to the objective of covering the customer needs of the district of San Miguel and other surrounding district. It also seeks to be the best option as a gift, being able to choose the variety of products according to the style of each client, these "makeup bouquets" are characterized by their quality and good price. In addition to the benefits already explained, the products of PHALM will be kept in a warehouse in optimal conditions, all this will guarantee its good condition at the time of purchase and makes it a suitable makeup for its application and enjoyment. Being new in the market, according to the calculations made, our business is profitable over time, for the reason that we have an IRR of 50.06% and a NPV of S / 130,872.63 corresponding to our economic indicators, in turn, we have an IRR of 63.04% and a NPV of S / 125,167.63 refers to our financial indicators, where we can see the recovery of the investment in 2.8 and 2.31 years. Cabe tells him that this product corresponds to a demanded market, since men and women can easily buy and consume.
Trabajo de investigación
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Horn, Stacey Lynn. "Evaluation of a new standardized modified ramp protocol : the modified BSU ramp protocol." Virtual Press, 1999. http://liblink.bsu.edu/uhtbin/catkey/1129626.

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The purpose of this study was to develop a prediction equation for peak oxygen uptake using the Modified BSU Ramp protocol. Thirty-four subjects (14 men and 20 women, age 32-83 years) completed the standard Ball State University Adult Physical Fitness Program quiet and exercise testing sessions, with the maximal exercise test conducted with the Modified BSU Ramp protocol. The modified ramp protocol increases speed and grade every 20 seconds, and it increases by - 0.15 METs every increment for the first 6 minutes and --0.3 METs per increment thereafter. The Modified BSU ramp protocol was developed to allow for reasonable exercise test times from a standardized ramp protocol with individuals with low functional capacities < 10 METs. Pre-test procedures included height and weight measurements, resting blood pressure, resting heart rate, body fat measures, a blood lipid profile, and resting electrocardiogram (ECG). Exercise testing included ECG, heart rate, and blood pressure that were recorded prior to, during, and in the recovery phase of exercise. Subjects were instructed to continue exercise until fatigue, and respiratory gases were collected to determine V02 . Data was then analyzed using multiple regression techniques. Gender, age, body weight, and treadmill test time were the significant predictors, which were used in the regression equation (R2 = 0.586, SEE = 3.54 ml-kg-'.min'). An equation was developed from the lone predictor, treadmill test time with R2 = .37 and SEE = 4.1 ml•kg'•min'. The equation is as follows: VOA = 4.932 + 1.934 (test time (min)). Of the tests conducted on the Modified BSU ramp protocol, 82% were within an "ideal" test time window of 812 minutes, and 97% were within an "acceptable" test time window of 6-15 minutes. In conclusion, VOA can be estimated with acceptable accuracy (i.e. SEE - ± I MET) from the Modified BSU Ramp protocol, and for clinical purposes it is a suitable protocol to use when testing low fit individuals.
School of Physical Education
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Hollinshead, Fiona Kate. "FLOW-CYTOMETRIC SORTING OF RAM SPERMATOZOA: PRODUCTION OF LAMBS OF A PRE-DETERMINED SEX USING IN VIVO AND IN VITRO FERTILISATION." University of Sydney, 2003. http://hdl.handle.net/2123/566.

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Abstract Birth of offspring of a pre-determined sex using flow cytometrically sorted fresh spermatozoa was first achieved in rabbits by Johnson et al. (1989). Since then offspring have been produced using sex-sorted spermatozoa from several different species (reviewed by Johnson, 2000). Initially, efficiency of the sex-sorting technology was poor with only low numbers of spermatozoa sorted per hour. Thus, the offspring derived from flow cytometrically sorted spermatozoa were produced with the use of artificial reproductive technologies (ART) such as in vitro fertilisation (IVF) and culture (IVC), intracytoplasmic sperm injection (ICSI) and deep artificial insemination (AI) which facilitated low dose insemination of potentially compromised spermatozoa. More recently, the development of high-speed sorters (Johnson and Welch, 1999) has facilitated the production of offspring using conventional AI techniques with low dose inseminates (Seidel et al., 1999) and successful cryopreservation of sorted spermatozoa (Schenk et al., 1999; Johnson et al., 2000; Lindsey et al., 2002; Schenk and DeGrofft, 2003). Increased efficiency of sorting bull spermatozoa has evolved through significant instrumentation and biological developments which have enabled the commercialization of the sperm sexing technology in the dairy industry, although conception rates in cows after low dose AI with sexed frozen-thawed spermatozoa are still lower than after standard frozen semen AI (Seidel et al., 1999). Subsequently, over 20 000 calves of pre-determined sex have been produced from commercially available sex-sorted frozen-thawed bull spermatozoa (Seidel, 2003). However, similar developments have not been made in the sheep industry and were examined in this thesis. In this study, successful cryopreservation of sex-sorted ram spermatozoa and production of offspring of the pre-determined sex (X: 94.4 %; Y: 100 %) was achieved after low dose (2-4 x 106 total) insemination using conventional laparoscopic intrauterine (IU) AI. However, the overall pregnancy rate for ewes inseminated with sex-sorted frozen-thawed spermatozoa was low (25 %) compared to ewes inseminated with a commercial dose (140 x 106 total) of non-sorted frozen-thawed spermatozoa (54 %). Cryopreservation has been found to not only reduce the proportion of motile spermatozoa, but cause the remaining spermatozoa to undergo changes that advance membrane maturation thereby shortening their lifespan, especially after in vivo fertilisation (Gillan and Maxwell, 1999). It was found that sorting prior to cryopreservation accelerated the maturation of sperm membranes and after co-incubation with oviducal cells in vitro, sorted frozen-thawed spermatozoa were released more rapidly than non-sorted (control) frozen-thawed spermatozoa. The potentially reduced lifespan of sorted frozen-thawed spermatozoa, and practical constraints on the number of spermatozoa that can be sorted for an insemination dose, makes insemination close to the site of fertilisation and time of ovulation critical for successful fertilisation. After treatment of ewes with GnRH to increase the precision of insemination in respect to the time of ovulation, there was no difference in pregnancy rate between ewes inseminated before, during or after the assumed time of ovulation. Furthermore, there was no difference in pregnancy rate after IU AI with similar doses of sorted frozen-thawed and non-sorted frozen-thawed spermatozoa in GnRH-treated ewes. The minimum dose of sorted frozen-thawed spermatozoa required for commercially acceptable pregnancy rates determined after IU AI was high (20 x 106 motile). Consequently, alternative methods for efficiently producing large numbers of offspring of a pre-determined sex using flow cytometrically sorted ram spermatozoa were investigated. Ram spermatozoa can be stored for short periods of time in a chilled state (liquid storage) or for an indefinite period of time in a frozen state (frozen storage; Salamon and Maxwell, 2000). The fixed location of the sperm sorter requires the need for transport of semen from the point of collection to the site of sorting and processing, but also from the sperm sorter site to the recipient females under artificial conditions. In this study, ram spermatozoa liquid stored for 24 h prior to sorting were efficiently sorted, frozen, thawed and after in vitro fertilisation and culture produced a high proportion of grade 1 blastocysts. Similarly, spermatozoa stored at reduced temperatures after sorting maintained high sperm quality for up to 6 days. Furthermore, frozen-thawed spermatozoa from rams and some non-human primates were successfully prepared for sorting and efficiently sorted producing spermatozoa with high quality in vitro parameters. The quality of frozen-thawed ram spermatozoa after sorting was such that successful re-cryopreservation after sorting was possible. Low numbers of frozen-thawed sorted and re-frozen and thawed spermatozoa were optimal for IVF and a high proportion of grade 1 in vitro embryos of a pre-determined sex were produced. These embryos were either transferred immediately or vitrified prior to transfer, extending the application of the sperm sexing technology further. The birth of lambs of pre-determined sex after transfer of both fresh and vitrified embryos derived from frozen-thawed sorted spermatozoa was achieved. The findings in this thesis suggest that sorted frozen-thawed ram spermatozoa may have more advanced membrane maturation state than non-sorted frozen-thawed spermatozoa, resulting in a decreased fertilizing lifespan in the female reproductive tract. Despite this, the use of sexed ram spermatozoa in a number of physiological states (fresh, liquid, frozen) with several different ARTs is possible in producing significant numbers of offspring of a pre-determined sex. Improved efficiency in both sperm sexing and associated reproductive technologies is required for commercialization to be achieved in the sheep industry.
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Park, Mun Gyu. "RAMS management of railway systems." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/4750/.

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Railway RAMS is an engineering discipline that integrates reliability, availability, maintainability and safety characteristics into an inherent design property through systems engineering. This research is to establish a systematic approach of RAMS management for the railway systems engineering through the establishment of the engineering concepts, methods, techniques and tools. For this purpose, the research focuses on three subjects and a case study. Firstly, this research provides a RAMS management systems included railway systems engineering and RAMS management processes so that railway organisations can decide a strategic policy, control functions and coordinate activities related to RAMS management. Secondly, this research provides railway risk assessment methods to assess all of the potential hazards that threaten the railway’s operational objectives and control them within the possible acceptable criteria. Thirdly, this research provides the method that develops RAMS performance specifications appropriate to the RAMS requirements and operational contexts in order to develop RAMS design and its acceptance criteria for implementing the detailed design and/or contract. Finally, this research presents a case study for the risk assessment, using the data collected from the railway industry to demonstrate the proposed risk assessment method and to investigate the RAMS performance of the railway systems and their major failure causes.
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Rosa, Sandro Ricardo. "O diário de Angel Rama." Florianópolis, SC, 2009. http://repositorio.ufsc.br/xmlui/handle/123456789/92527.

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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Literatura, Florianópolis, 2009.
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O presente estudo tem como objetivo analisar o diário do crítico uruguaio Ángel Rama (Diario: 1974-1983), publicado após a sua morte em 2001. O Diario de Rama pode ser compreendido considerando-se dois períodos: o do início de sua atividade intelectual até o contexto ditatorial, que coincide com o seu exílio, e aquele que viria a caracterizar a retomada da democracia em meados dos anos oitenta. No entanto, ele não pode compartilhar a intensa devoção à memória e à liberdade que caracterizaria este período pós-ditatorial na América Latina. Sob essa ótica, o Diario pode ser lido como uma representação trágica da memória, sem esquecer que tal representação é mais bem entendida quando levamos em conta que existe um esforço para sair dessa condição trágica seja como exilado, como intelectual comprometido e como ser afetivo.
The aim of this study is to analyze the diary of the Uruguayan critic Angel Rama (Diary: 1974-1983), published after his death in 2001. The Diary of Rama can be understood considering two periods: the beginning of his intellectual activity up to the dictatorial context, which coincides with his exile, and the one which would characterize the return of democracy in the mid 1980.s. However, he didn.t have the chance to share the intense devotion to the memory and liberty which would characterize this post dictatorial period in Latin America. Under this perspective, the Diary can be read as a tragic representation of memory, bearing in mind that such representation is better understood when we consider that there is an effort to escape from this tragic situation, no matter as an exiled, as a committed intellectual or as an affective being.
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Ertl, Roman. "Kontrola svarových spojů nájezdových ramp." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417572.

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This master's thesis is focused on problem of welding of loading ramps and inspection of their welded joints. The aim of this thesis is to inspect the welds of loading ramps with regarding to the appearance of defects. The literature review of the research issues of the MIG welding technology and welding of aluminium and its alloys is described in this thesis. There is also described destructive and non-destructive inspection of welds that can be applied to inspection of loading ramps. Theoretical description is followed by an experimental part of the thesis. Experimental part is focused on the three destructive tests (the tensile, the macroscopic and the hardness test) of samples of loading ramps, which are made of EN AW-6005A T6.
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McNamee, Stuart, Larry Rheaume, and Richard Lutomirski. "REMOTE ATMOSPHERIC VISIBILITY MONITORING RAVM." International Foundation for Telemetering, 2000. http://hdl.handle.net/10150/608288.

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International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California
Test ranges need advanced knowledge of visibility conditions to increase the robustness of the test data collection and evaluation process. For any given test, the ability to capture high-resolution performance data of aircraft using ground-based film theodolites and electro-optical imaging sensors is subject to uncertainties in imaging capability permitted by the intervening atmosphere. The Remote Atmospheric Visibility Monitoring (RAVM) project is being developed as a suite of three collocated optical sensors that measure the components of atmosphere-induced image degradation. When the component measurements are combined, a ‘transfer function’ is obtained that can project the quality of imaging data without an aircraft being present. The resulting predicted imagery provides valuable pre mission information that can be analyzed and reviewed before incurring expensive fieldtest operations. The RAVM project is a Phase II Small Business Innovation Research (SBIR) program that is developing an instrument for providing an atmospheric visibility measurement capability to support range scheduling and test operations. This advanced capability will monitor ‘effective visibility’ in the context of imaging extended targets, such as aircraft, and predicting the degrading effects of the atmosphere on imaging sensors operating in the visible and near-infrared regions of the electromagnetic spectrum.
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Baptista, Luís Manuel Lino. "RAMS aplicado a sistemas reparáveis." Master's thesis, FCT - UNL, 2007. http://hdl.handle.net/10362/1750.

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Quando se aborda o tema da manutenção,muitas vezes a primeira ideia subjacente é a de que se trata de uma actividade que apenas acarreta custos, sem que dela resultem benefícios maiores para as instalações industriais. Tal facto deriva desta actividade estar natural e permanentemente associada a falhas. Daí a necessidade de se demonstrar que, através de uma aplicação rigorosa de metodologias modernas de manutenção, assentes em conceitos científicos, se podem acrescentar mais-valias na cadeia de valor de cada organização. O principal objectivo do presente trabalho foi o desenvolvimento de um modelo apropriado de manutenção, assente no conceito RAMS, aplicado a sistemas reparáveis de extracção de oleaginosas. A metodologia desenvolvida procura integrar os conceitos associados aos processos estocásticos pontuais com metodologias qualitativas de análise de falhas e efeitos e com as práticas de manutenção baseadas na fiabilidade. Os dados referentes à extracção de oleaginosas foram, inicialmente, codificados e tratados de forma a conseguir-se uma base de dados para cada subsistema, ordenada cronologicamente. A análise da extracção de oleaginosas como sistema reparável, constituído hierarquicamente por subsistemas igualmente reparáveis incidiu, fundamentalmente, em três vertentes: a primeira, consubstanciada na avaliação global das falhas do sistema reparável, articulando a utilização dos conceitos dos processos estocásticos pontuais com a determinação dos respectivos tempos médios de reparação; tem como o objectivo encontrar os subsistemas mais críticos, em termos de disponibilidade; a segunda, permitiu encontrar uma política de manutenção preventiva adequada, através da identificação dos respectivos componentes críticos; estes foram, obtidos pela aplicação da Análise Modal de Falhas e Efeitos e da modelação estatística da ordem das falhas e respectivas durações; a terceira, através do desenvolvimento da análise de riscos associada às tarefas de manutenção, permitiu identificar melhorias possíveis de aplicar ao nível da segurança ocupacional. A metodologia desenvolvida poderá ser eventualmente aplicada à totalidade dos subsistemas reparáveis da unidade em estudo, bem como a outras unidades industriais.
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Teschner, Kathrin [Verfasser]. "Optimization of rAAV mediated targeted suicide gene therapy, rAAV manufacturing and downstream processing / Kathrin Teschner." Bielefeld : Universitätsbibliothek Bielefeld, 2020. http://d-nb.info/1209672375/34.

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Books on the topic "RaMV"

1

Great rams and great ram hunters. Dallas, Tex: Collectors Covey, 1994.

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M, Anderson Robert. Great rams and great ram hunters II. Dallas, Tex: Collectors Covey, 2008.

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Great rams and great ram hunters II. Dallas, Tex: Collectors Covey, 2008.

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Goswāmī, Rameśa Candra. Raṃ raṃ nānā raṃ. Guwahati, Assam, India: Asama Śiśu Sāhitya Nyāsa, 1991.

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Horvátová, Agnesa. Pal e Bari Rama the aver paramisa =: O Velké Ramě a jiné příběhy. Praha: Signeta, 2003.

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Robin, Schneider, ed. Dictionary of the Rama language: Rama, English, Rama-Creole, Spanish, English, Rama. Berlin: D. Reimer, 1989.

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Rigby, Nora. Dictionary of the Rama language: Rama - English - Rama-Creole - Spanish : English - Rama. Berlin: D. Reimer, 1989.

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Ramz. Kandahār: Benawā Farhangī Ṭolanah, 2004.

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(Indonesia), Balai Penelitian Tembakau dan Tanaman Serat. Rami. Malang: Departemen Pertanian, Badan Penelitian dan Pengembangan Pertanian, Pusat Penelitian dan Pengembangan Perkebunan, Balai Penelitian Tanaman Tembakau dan Serat, 2005.

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Penya, Vicent. Rama. Valencia: Brosquil Edicions, 2005.

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Book chapters on the topic "RaMV"

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Sachdev, Manoj. "Defect Oriented RAM Testing and Current Testable RAMs." In Defect Oriented Testing for CMOS Analog and Digital Circuits, 133–204. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4757-4926-7_5.

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Monazzah, Amir Mahdi Hosseini, Amir M. Rahmani, Antonio Miele, and Nikil Dutt. "Exploiting Memory Resilience for Emerging Technologies: An Energy-Aware Resilience Exemplar for STT-RAM Memories." In Dependable Embedded Systems, 505–26. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-52017-5_21.

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AbstractDue to the consistent pressing quest of larger on-chip memories and caches of multicore and manycore architectures, Spin Transfer Torque Magnetic RAM (STT-MRAM or STT-RAM) has been proposed as a promising technology to replace classical SRAMs in near-future devices. Main advantages of STT-RAMs are a considerably higher transistor density and a negligible leakage power compared with SRAM technology. However, the drawback of this technology is the high probability of errors occurring especially in write operations. Such errors are asymmetric and transition-dependent, where 0 → 1 is the most critical one, and is high subjected to the amount and current (voltage) supplied to the memory during the write operation. As a consequence, STT-RAMs present an intrinsic trade-off between energy consumption vs. reliability that needs to be properly tuned w.r.t. the currently running application and its reliability requirement. This chapter proposes FlexRel, an energy-aware reliability improvement architectural scheme for STT-RAM cache memories. FlexRel considers a memory architecture provided with Error Correction Codes (ECCs) and a custom current regulator for the various cache ways and conducts a trade-off between reliability and energy consumption. FlexRel cache controller dynamically profiles the number of 0 → 1 transitions of each individual bit write operation in a cache block and based on that selects the most-suitable cache way and current level to guarantee the necessary error rate threshold (in terms of occurred write errors) while minimizing the energy consumption. We experimentally evaluated the efficiency of FlexRel against the most efficient uniform protection scheme from reliability, energy, area, and performance perspectives. Experimental simulations performed by using gem5 has demonstrated that while FlexRel satisfies the given error rate threshold, it delivers up to 13.2% energy saving. From the area footprint perspective, FlexRel delivers up to 7.9% cache ways’ area saving. Furthermore, the performance overhead of the FlexRel algorithm which changes the traffic patterns of the cache ways during the executions is 1.7%, on average.
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Martemyanov, Kirill A., Pooja Parameswaran, Irene Aligianis, Mark Handley, Marga Gual-Soler, Tomohiko Taguchi, Jennifer L. Stow, et al. "Ramp." In Encyclopedia of Signaling Molecules, 1570–74. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0461-4_112.

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Hay, Debbie L., Patrick M. Sexton, and David R. Poyner. "Ramp." In Encyclopedia of Signaling Molecules, 4433–38. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-67199-4_112.

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Hay, Debbie L., Patrick M. Sexton, and David R. Poyner. "Ramp." In Encyclopedia of Signaling Molecules, 1–5. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4614-6438-9_112-1.

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Chojnacki, Matthew. "Sand Ramp." In Encyclopedia of Planetary Landforms, 1843–46. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4614-3134-3_538.

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Chojnacki, Matthew. "Sand Ramp." In Encyclopedia of Planetary Landforms, 1–4. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4614-9213-9_538-1.

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Gordon, Robert L. "Ramp Metering." In Intelligent Freeway Transportation Systems, 115–45. Boston, MA: Springer US, 2010. http://dx.doi.org/10.1007/978-1-4419-0733-2_7.

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Gordon, Robert. "Ramp Metering." In Intelligent Transportation Systems, 125–55. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-14768-0_7.

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Seil, Romain, and Caroline Mouton. "Ramp Lesions." In Knee Arthroscopy, 217–27. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8191-5_18.

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Conference papers on the topic "RaMV"

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Gonon, Patrice, Christophe Vallee, Vincent Jousseaume, Yoann Bernard, Cedric Mannequin, Mathieu Mougenot, and Helen Grampeix. "Comparing the switching characteristics of two resistive RAM technologies: Cu-SiO2 conductive-bridging-RAMs and HfO2 Oxide-RAMs." In 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology (ICSICT). IEEE, 2010. http://dx.doi.org/10.1109/icsict.2010.5667571.

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Ji, Yangziyi, Xiangdong Li, Lanwei Zhou, and Xiaoying Lan. "Comparison of the Hydrodynamic Ram Caused by Single and Two Projectiles Impacting Water-filled Containers." In 2019 15th Hypervelocity Impact Symposium. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/hvis2019-068.

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Abstract When high-velocity projectiles penetrate an enclosed fluid-filled structure, the projectiles transfer the kinetic energy to the surrounding structure through the fluid and cause excessive structural damage. This process is referred to as a hydrodynamic ram (HRAM) [1]. The HRAM can be divided into five phases[1]: penetration, shock, drag, exit, and cavity oscillation. The HRAM phenomenon has been studied analytically [2,3], experimentally [4–7] and numerically [8–10]. However, few studies have been performed on the hydrodynamic ram caused by multiple penetrators. In the present work, a previously validated numerical model was used to analyze the differences of hydrodynamic rams caused by one and two projectiles impacting water-filled containers.
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Yang, Ling, Jingjun Zhong, and Ji-ang Han. "Numerical Research on the Flow Field and Performance of a Ram-Rotor and a Scrampressor." In ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/gt2012-69358.

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The design methods of typical supersonic aircraft intakes and shock wave compression technology have been applied to ram-rotor, a new attractive compression system. A ram-rotor is a typical structure including the compression ramp, the throat and the subsonic diffuser; a scrampressor is similar to ram-rotor, the only different is that scrampressor has no subsonic diffuser. Base on the preparatory work, it has been found that these two structures have different advantages respectively. So, in this paper, the three dimensional Reynolds-averaged Navier-Stokes equations and the Spalart-Allmaras turbulent model are used to simulate numerically the flow field of the ram-rotor and the scrampressor at the design and at the off-design conditions. The back pressure and rotational speed are mainly considered which may affect the flow field and the total performance. It has been found that back pressure can not have influence on the flow field before the throat outlet obviously. With increasing of the back pressure, the position of the flow separation zone and shock train move forwards to the inlet. The rotational speed changes the shock wave structure of the ram-rotor and scrampressor evidently. With the rotational speed increasing, each shock wave moves to the outlet and the shock wave number decreases. The ram-rotor and scrampressor structure is similar, except the ram-rotor flow structure has a large flow separation zone after the throat outlet. The compression capability of the ram-rotor is higher than that of the scrampressor. The total performance of the scrampressor is better than the ram-rotor.
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Tulimilli, Bhaskar Rao, Pramod Naik, Arindam Chakraborty, Sourabh Sawant, Alan Whooley, and Robert Weiss. "Experimental and Numerical Investigation of BOP Shear Ram Performance." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-24714.

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A Blowout Preventer (BOP) consists of several sets of shear rams stacked together out of which Blind Shear Rams (BSR) is a very critical component to achieve complete shearing of drill pipe. The current study focusses on developing a methodology to model the shearing process and validate it with the shop test. Shop tests were conducted to shear a drill pipe using a surface BOP to obtain the maximum shearing force, shape of sheared drill pipes, shearing time etc. The shear rams used in the test are laser scanned and used in FEA simulations. The FEA model is developed such that it replicates the shop test and simulations are performed using Abaqus Explicit finite element solver. The output from simulations and shop test are compared and found to be in good agreement. The developed methodology is further verified by applying it for shearing different drill pipe sizes and the output is compared with the available data and found to be comparative which proves that the methodology can be implemented for various shearing studies. Original Equipment Manufacturer (OEM) formulas are currently being used in industry to compute the maximum shearing force required to shear the drill pipe under various scenarios. The OEM shearing force is computed for the model under consideration and compared with the shop test and simulation and is found to be conservative. The validated model can be used for conducting studies that provide information on the governing parameters in terms of loading or positioning of the drill pipe to be considered in shear ram designs. This study provides a tool for optimizing the preliminary design of new shear rams and can contribute to more reliable and efficient shear ram design. The study is conducted as part of a Technology Assessment Programs (TAP) for the Bureau of Safety and Environmental Enforcement (BSEE) in the areas of BOP stack sequencing, monitoring and kick detection.
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Hwang, Jong-gyu, and Hyun-jeong Jo. "RAMS management and assessment of railway signaling system through RAM and safety activities." In 2008 International Conference on Control, Automation and Systems (ICCAS). IEEE, 2008. http://dx.doi.org/10.1109/iccas.2008.4694619.

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Diemunsch, Kenneth M., and Gopala Muthukrishnan. "Applying Reliability and Availability Methods to Communication Based Train Control." In 2014 Joint Rail Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/jrc2014-3740.

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Reliability, Availability and Maintainability (RAM) engineering has been applied successfully for decades in many industries such as military electronics for aerospace [1] [2], nuclear power stations [3], and oil field services [4]. Several standards applying to train control have also been produced recently, for instance the IEEE recommended practice on Communication Based Train Control (CBTC) testing [5], the international standard for Reliability Availability Maintainability Safety (RAMS) in railway applications [6] and the European version [7]. Better Reliability and Availability (RA) involves a larger capital investment cost but results in lower maintenance cost and fewer system impacting delays. RAM engineering is used to define the optimal level of reliability and availability to minimize those two costs. This paper introduces CBTC technology, including typical architectures of the subsystems which need to be modeled for the RA analysis. Basic RAM definitions and methods which can be applied to any system, including train control equipment, are presented. Then, the application of RA methods on CBTC system is discussed in terms of requirements, analysis, testing and methods to choose spare parts quantity.
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Yang, Ling, Jingjun Zhong, and Ji-ang Han. "Numerical Research of the Ram-Rotor With Different Geometric Parameters." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46051.

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With the design methods of typical supersonic aircraft intakes and the advantages of shock wave compression, ram-rotors have become a new attractive compression system. Lots of research work has been carried out on rampressors, but the influence of the geometric parameters on the shock wave structure and compression performance of the ram-rotor has not been studied systematically. Therefore, a thorough study on ram-rotor with different geometric parameters is required. In this paper, a steady three-dimensional Navier-Stokes equation adopted in the “Fluent” software package is carried out on a large parallel computer. Six factors which may influence the ram-rotor performance are investigated numerically. These geometric parameters are strake section shape, throat length-height ratio, strake stagger angle, compression ramp angle, subsonic divergent angle and throat contraction ratio. The study is composed of two parts. The aim of the first part is to understand the influence of the geometric parameters listed above on the shock wave structure and compression performance of the ram-rotor by comparison and analysis of the relative Mach number and static pressure in the flow-path. The aim of the second part is to obtain the optimal geometric structure of the ram-rotor by comparison and analysis of the structure of the flow fields, the compression performance and the ram-rotor properties. First of all, the numerical method is validated by comparing the numerical results of the flow field of a supersonic intake with experimental results in this paper. Secondly, the flow field structures in the ram-rotor, especially the number and position of shock waves and the separation zone, are studied. Thirdly, the influence of the geometric parameters on the rotor performance is studied. Some parameter distributions, such as the flow angle, adiabatic efficiency, total pressure ratio, total pressure recovery coefficient, are compared and analyzed. The rules of the ram-rotor performance variation with different geometric parameters are also presented. Finally, some advice for improving the overall performance of the ram-rotor is given according to the flow field analysis.
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Kabir, Mehdi, Mircea R. Stan, Stuart A. Wolf, Ryan B. Comes, and Jiwei Lu. "RAMA." In the 21st edition of the great lakes symposium. New York, New York, USA: ACM Press, 2011. http://dx.doi.org/10.1145/1973009.1973015.

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Choi, Yongsuk, Yeongseong Park, Jongmoo Choi, Seong-je Cho, and Hwansoo Han. "RAMC." In the 7th International Conference. New York, New York, USA: ACM Press, 2013. http://dx.doi.org/10.1145/2448556.2448623.

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Kelly, Brandon M., Brandon Rumberg, David W. Graham, Vinod Kulathumani, Spencer Clites, Alex Dilello, and Mir Mohammad Navidi. "RAMP." In the 14th International Conference. New York, New York, USA: ACM Press, 2015. http://dx.doi.org/10.1145/2737095.2737129.

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Reports on the topic "RaMV"

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Romero, Nicolás, and Laura Uribe. Mecanismos que fortalecen la integración: redes de migrantes y permisos de permanencia en los procesos migratorios. Inter-American Development Bank, April 2021. http://dx.doi.org/10.18235/0003498.

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La crisis social desatada por la pandemia del Covid-19 ha agravado la condición de vulnerabilidad de los migrantes venezolanos. Lo anterior genera la necesidad de identificar mecanismos que favorezcan el bienestar de esta población. En este sentido, este documento destaca que las redes de migrantes y la posibilidad de acceder a un permiso de permanencia (caso de estudio PEP-RAMV) son mecanismos que facilitan distintas instancias del proceso migratorio en Colombia. En el caso de las redes, los resultados identifican que estas son indispensables para resolver diferentes necesidades, pero cobran especial relevancia en momentos críticos (llegada a Colombia, enfrentando los estragos de la pandemia, entre otros). Mientras que el permiso de permanencia PEP-RAMV otorgó la posibilidad de acceder a mercados formales, salud y educación, lo cual generó una sensación de respaldo por parte del gobierno a una población que de otra forma tendría profundas dificultades para integrarse a la sociedad colombiana. Para explorar el potencial de estos mecanismos, el siguiente documento describe, de forma general, la importancia de las redes de migrantes y el PEP-RAMV durante los procesos migratorios, luego se señala que ambos son mecanismos diferentes, pero tienen puntos de encuentro y finalmente se describe la situación de ambos en torno a distintas afectaciones en los hogares generados por el Covid-19.
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2

Montag, C., M. Blaskiewicz, V. Schoefer, I. Blackler, and T. Shrey. p-Au ramp test. Office of Scientific and Technical Information (OSTI), June 2014. http://dx.doi.org/10.2172/1149124.

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Ludy, Biddle. Rutland Retrofit Ramp-Up. Office of Scientific and Technical Information (OSTI), June 2014. http://dx.doi.org/10.2172/1156898.

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Sicherman, A. RAM Intro. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1165801.

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Beckman, John, Colton Murphy, Joseph Rauenhorst, Joseph R. Vanstrom, and Jacek A. Koziel. St. Thomas Aquinas Parking Ramp. Ames: Iowa State University, Digital Repository, April 2017. http://dx.doi.org/10.31274/tsm416-180814-7.

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Johnson, Alan E., Eric S. Maniloff, and Thomas W. Mossberg. Optical Dynamic RAM. Fort Belvoir, VA: Defense Technical Information Center, September 1999. http://dx.doi.org/10.21236/ada374849.

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Stenner, R. D., D. L. Strenge, and J. W. Buck. RAMS (Risk Analysis - Modular System) methodology. Office of Scientific and Technical Information (OSTI), October 1996. http://dx.doi.org/10.2172/398559.

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Lueder, Suzanne, and Todd Parker. On-Ramp Wireless: Program Final Report. Office of Scientific and Technical Information (OSTI), March 2013. http://dx.doi.org/10.2172/1504936.

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Fredrickson, E., K. McGuire, R. Goldston, M. Bell, B. Grek, D. Johnson, A. Morris, F. Stauffer, G. Taylor, and M. Zarnstorff. Fast current ramp experiments on TFTR. Office of Scientific and Technical Information (OSTI), May 1987. http://dx.doi.org/10.2172/6158948.

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vanZeijts J. FY03 Polarized Proton Ramp Optics Analysis. Office of Scientific and Technical Information (OSTI), October 2003. http://dx.doi.org/10.2172/1061712.

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