Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 78 for “"pNP"”.
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High-voltage ESD PNP clamp simulation and design
… work high-voltage Electrostatic discharge (ESD) PNPs are studied through TCAD simulation and device measurement. PNPs for three different voltage classes, 16 V, 65 V, and 100 V, in a 0.5-µm Bipolar CMOS DMOS (BCD) technology are used as the context for the study. The PNPs are varied in choices of …
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Study of Biological Ion Channels by Using PNP/ECP Model
… community. The Poisson-Nernst-Planck (PNP) theory, also known as drift-diffusion theory, can be used to compute macroscopic current in ion channels reasonably quickly. However, PNP theory can be problematic when applied to regions of constricted volume, such as the interior of ion …
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A robust INS/PnP fusion method for GNSS-denied navigation of small UAVs
This thesis presents three INS/VISNAV integration architectures to deal with prob- lem when operating UAVs. The first two integration architectures are called tight and loose INS/VISNAV integration, respectively. The tight and loose integration strategies are not new and have been used before. The …
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Design and fabrication of novel and functional 3D structures via proximity field nano-patterning
Proximity field Nano-Patterning (PnP) is a large-area interference lithography technique that is used to fabricate multi-dimensionally periodic micro-structures. Though a potent technique for 3D microfabrication that offers dual and superior advantage of scalable resolution and throughput, this …
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Molekulare Mechanismen des Tumorzelltodes induziert durch die Suizidgene Thymidinkinase und Purinnukleosidphosphorylase
… Escherichia-coli-Purinnukleosidphosphorylase (PNP)/Fludarabin-Suizidgensystem aufgrund seines stärkeren “Bystander”-Effekts besser geeignet sein als das Herpes-simplex-Virus-Thymidinkinase/Ganciclovir (TK/GCV)-System. Um die molekularen Mechanismen des PNP/Fludarabin-induzierten Zelltods in …
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Coordination Chemistry of Bis(diphenylphosphino)amine Ligands with Cobalt Carbonyl and the Intermolecular Catalyzed Pauson-Khand Reaction
Bis(diphenylphosphino)amine (PNP) ligands, prepared from (S)-(-)-1-methylbenzyl amine, (-)-cis-myrtanylamine, (S)-(-)-1,1-napthyl(ethyl)amine (PNP1 1a, PNP2 1b, and PNP3 1c respectively) and their cobalt carbonyl complexes are reported. In the absence of alkynes the PNP ligands chelate to the …
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Three-dimensional nanofabrication with elastomeric phase mask
… we refer to as proximity field nanopatterning (PnP), uses conformable, elastomeric phase masks to pattern thick layers of transparent, photosensitive materials in a conformal contact mode geometry. Aspects of the optics, the materials, and the physical chemistry associated with this method are …
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Identification and Characterization of Antibiotic Biosynthetic Gene Clusters in Pantoea
… gene cluster for Pantoea Natural Product 3 (PNP-3), an antibiotic produced by P. agglomerans 3581r and SN01080r. The cluster contains putative enzymes (pnp3b, pnp3e–h), MFS transporters (pnp3a, pnp3c), and an ArsR family regulator (pnp3d). Transposon mutagenesis and heterologous expression of …
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Size-dependent Electroelastic Properties of Piezoelectric Nanoplates
… vibration of a piezoelectric nanoplate (PNP) is firstly examined. Then the surface effects including the residual surface stress, the surface elasticity and the surface piezoelectricity are further incorporated to develop a more comprehensive modified Kirchhoff plate model in addition to …
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Evaluation of Antibiotic Production and its Regulation in Pantoea agglomerans Tx10
… called this compound, Pantoea Natural Product 2 (PNP-2). Subsequent assays with mutants deficient in PNP-2 production revealed that they were still able to inhibit Erwinia amylovora, suggesting the production of a second antibiotic, which I identified as the well-known pantocin A. A survey of …
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Plant cell wall degrading enzymes and their potential application to biofuel production
… and it was shown to exhibit activity against pNP-α-L-arabinopyranoside, pNP-β-D-fucopyranoside, pNP-β-D-galactopyranoside, pNP-β-D-glucopyranoside, pNP-β-D-xylopyranoside and pNP-β-D-cellobioside suggesting that Cb486 is a multi-functional enzyme. We therefore hypothesized that Cb486 incubated …
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A Dynamical Study of the Poisson-Nernst-Planck System for Three Ions
… steady-state Poisson-Nernst-Planck (PNP) system is a useful representation of these devices, but experience shows that describing the reservoirs as boundary conditions is difficult. We study the PNP system for three types of ions with three regions of piecewise constant permanent …
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Alpha-galactosidase from Lactobacillus salivarius: Isolation, purification, and biochemical characterization
… $\mu$moles/min/mg protein were calculated for pNP-$\alpha$-G. The enzyme was found to be stable between 20 and 50$\sp\circ$C, and highest activity was attained at 50$\sp\circ$C. $\alpha$-Galactosidase activity was lost rapidly below pH 4.5. Enzyme activity was inhibited by PHMB, HgCl$\sb2,$ and …
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Understanding the shift from permanent employment to contract work among retail workers who accepted voluntary retrenchment packages in 2017
… in 2011. Retail companies such as Pick n Pay (PnP) adopted workplace-restructuring strategies to maintain a competitive edge in the retail sector. This study draws attention to the effect of the cost saving strategies such as VRPs, and labour brokers in the workplace. This research explores the …
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Towards optimal capacity-achieving transceivers with photonic integrated circuits
… of a programmable nanophotonic processor (PNP) for implementing a high-fidelity reconfigurable optical transceiver at the telecommunications wavelength. By encoding information in multiple spatial modes and detecting jointly over the modes using a unitary transform prior to detection, one …
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Purification of uridine diphosphate glucuronyltransferase
… different substrates, bilirubin, 4-nitrophenol (PNP) and 7-hydroxy-4-methylcoumarin (HMC). For this last substrate, HMC, a new continuous fluorometric assay was developed. The purification fold and activity recovery, respectively, towards each substrate was as follows: bilirubin, 31 and 80%; PNP, …
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The Evolution of Poltical Violence in Jamaica 1940-1980
… Labor Party (JLP) and People's National Party (PNP) emerged. Within the evolution of their support base Jamaican politicians such as Alexander Bustamante utilized their influence over local constituencies to create a garrison form of mobilization that relied heavily upon violence. By …
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