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Showing 1 to 20 of 24 for “"HDA"”.
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Performance evaluation of various allocation methods in a heterogeneous disk array architecture
… requirements. A Heterogeneous Disk Array (HDA) architecture is proposed, which allows device heterogeneity as well as RAID level heterogeneity. In other words, various disks of different types can be incorporated in a single HDA and multiple RAID schemes can coexist in the same array. The …
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An Open Source, Autonomous, Vision-Based Algorithm for Hazard Detection and Avoidance for Celestial Body Landing
… the Autonomous Hazard, Detection, and Avoidance (HDA) sub-system for celestial body landers that will enable different spacecraft to complete solar system exploration. The main objective of the HDA sub-system is to assemble a map of the local terrain during the descent of the spacecraft so that a …
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Studies of disk arrays tolerating two disk failures and a proposal for a heterogeneous disk array
… architecture, namely Heterogeneous Disk Array (HDA). The HDA is motivated by a few observations of the trends in storage technology. The HDA architecture allows a disk array to have two forms of heterogeneity: (1) device heterogeneity, i.e., disks of different types can be incorporated in a …
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CuAg bimetallic nanoparticles for the electrochemical reduction of carbon dioxide
… was performed in the presence of hexadecylamine (HDA), surfactant, while the other was performed in its absence. The electrocatalytic performance evaluation was conducted using two reactors, a batch reactor with a gas diffusion electrode, and a rotating disc electrode reactor. It was found that …
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Rb pathway and chromatin remodeling genes that antagonize let-60 Ras signaling during C. elegans vulval development
… The LIN-35 Rb protein is proposed to act with HDA-1, a histone deacetylase homolog with class B synMuv activity, to remodel chromatin and repress transcription of genes that promote vulval development. To further understand how lin-35 Rb and hda-1 regulate vulval cell fate specification, we …
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Synthesis of organically capped and water soluble metal sulfide semiconductor nanoparticles
… organic surfactant. By varying the lead source HDA capped particles with morphologies ranging from close to spheres, elongated particles and perfect cubes were formed. When the capping group was changed to TOPO, predominantly rod shaped particles were obtained. The growth mechanism for the …
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Influencia de humedad y temperatura sobre la fertilidad de vacas holstein, en la Península de Chiltepe
… relacionadas con la fertilidad de las vacas son HDA (Humedad Relativa Promedio del día de inseminación) y HMX. Las variables de temperatura ambiental más relacionadas con la fertilidad de las vacas son TDA (Temperatura Promedio del día de inseminación) y TDU (Temperatura Promedio diurna del día …
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A harmonic balance framework for the numerical simulation of non-linear wave energy converter models in random seas
… contrast, the harmonic deterministic amplitude (HDA) approach is statistically inconsistent (because the generated time-series are non-Gaussian, and under-represent the short-term statistical variability of real ocean waves), but can be advantageous in the context of WEC simulations since, if it …
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Microwave-Mediated Hetero Diels-Alder reaction: Synthesis of biologically active compounds
… compounds is the hetero Diels-Alder reaction (HDA), that involve a [4+2] cycloaddition reaction between heterodienes and suitable dienophiles. Among heterodienes to be used in such six-membered heterocyclic construction strategy, 3-trialkylsilyloxy-2-aza-1,3-dienes (Fig 1) has been demonstrated …
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Synthesis and characterization of cadmium selenide and zinc selenide nanoparticles
… solvents was facilitated by hexadecylamine (HDA). The evidence for the formation of the nanoparticles with a desired quality was confirmed by using different techniques such as UV-Vis absorption spectroscopy, photoluminescence spectroscopy (PL), X-ray diffraction (XRD), transmission electron …
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Entwicklung von Microarrays für die Multiparameteranalytik und Etablierung einer Multiplex-OnChip-PCR
… die helikase-abhängige Amplifikation (HDA), hinsichtlich ihrer Eignung für die Integration auf einem Microarray getestet. Hierfür konnte die bislang erste OnChip-HDA für Einzel- und Duplex-Nachweise von Pathogenen entwickelt werden.
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Exploring Enantioselective and Multicomponent One-Pot Reactions Utilizing Alkynes as Linchpins Toward Biologically Active Molecules
… were found to undergo a Hetero-Diels-Alder (HDA) reaction when reacted with oxygen functionalized dienes in the presence of aluminum Lewis acids. There is only one report for the development of an enantioselective HDA reaction utilizing an alkynyl aldehyde. Due to the highly reactive …
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A facile hybrid method to synthesize metal and metal chalcogenide nanoparticles using various capping groups
… capped using alkylamines such as hexadecylamine (HDA) and OA, however at low temperature of 90oC they appeared to be close to spherical. The antimony chalcogenides, Sb2S3, Sb2Se3 and Sb2Te3 gave a similar rod shape morphology. The Sn nanoparticles appeared aggregated to some extent. A triangular …
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Synthesis and shape control of functionalized cadmium telluride nanoparticles
… with organic surfactants such as hexadecylamine (HDA) and tri-n-octylphosphine oxide (TOPO) for their solubility and stability in organic solvents. To stabilize and make the nanoparticles water soluble, L-cysteine ethyl ester hydrochloride and triethanolamine were used as capping agents. The …
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The use of metal complexes to deposit metal chalcogenide thin films and nanoparticles
… oxide (TOPO) and hexadecylamine (HDA). The optical properties of the nanoparticles were studied by using ultraviolet (UV)-visible and photoluminescence (PL) spectroscopy. There were blue shifts in the band gaps for all CdS samples; however, photoluminescence was very poor. The …
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Synthesis and growth dynamics study of silver nanoparticles
… precursors for the synthesis of hexadecylamine (HDA) and tri-octylphosphine oxide (TOPO) capped silver nanoparticles. The absorption spectra of the HDA and TOPO-capped silver nanoparticles exhibit surface plasmon resonance (SPR) absorption in 400-420 nm regions. In chapter four, the morphological …
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Millimeter wave wireless communication: initial acquisition, data communication and relay network investigation
… for mmWave SC systems. Third, we define two HDA antenna architectures which can be regarded as two ``extreme'' cases, i.e., the fully-connected (FC) architecture and the one-stream-per-subarray (OSPS) architecture. We propose a joint performance evaluation of the initial BA, the consequent …
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Determinación de la digestibilidad "in situ" del afrecho de cerveza
El presente trabajo se realizó en la Hda. Las Mercedes, perteneciente a la Universidad Nacional Agraria, Situada en el Kilómetro once y medio carretera Norte, Managua, con el objetivo de determinar el valor nutritivo del afrecho de cerveza y la degradación de la MS y PB del mismo, por un tiempo …
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Data allocation in disk arrays with multiple raid levels
… It is referred as a heterogeneous disk array (HDA). Dedicating a subset of disks to RAID 1 results in poor disk utilization, since RAIDi vs RAID5 capacity and bandwidth requirements are not known a priori. Balancing disk loads when disk space is shared among allocation requests, referred to as …
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Entwicklung eines HTS-geeigneten Enzymtests für Histondeacetylasen zur Entwicklung von HDAC-Inhibitoren
… die entscheidende Rolle der Histondeacetylasen (HDAC) bei der Pathogenese von bestimmten Tumoren erkannt und diese folgerichtig als wichtiges molekulares Zielenzym eingestuft. Die Entwicklung von selektiven und hoch potenten Inhibitoren für diese Enzyme wurde damit zum erklärten Ziel der …
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