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 120 for “"TPD"”.
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Sur la réversibilité de l'électroluminescence et du photovoltaïsme au sein des dispositifs organiques ITO/TPD/Alq3/A1
… biphenyl4,4’-diamine (TPD) et du tris-(8-hydroxyquinoline) d'aluminium (Alq3 ), utilisés comme couches transporteuses de trous et d’électrons, respectivement. Le principe de fonctionnement de ces dispositifs réfère à la théorie de la jonction PN inorganique. Une …
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Effets de la gravité sur la croissance de couches minces de TPD en phase nucléation par la méthode de transport par vapeur physique
… V’-Bis-(3-méthyphényl)-V,V-bis-phénylbenzidine (TPD) préparé par la méthode TVP. La phase nucléation représente le début de la croissance d’une couche mince et s’effectue pendant un court laps de temps. De telles expériences sont alors compatibles avec les courtes périodes de microgravité …
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An investigation into the Professional Development of English Teachers in Syrian Secondary Schools.
… research into teacher professional development (TPD), as an important topic within English language teaching, the researcher identified some areas where there is much still to reveal. These include: teachers' customary engagement with different TPD activities aside from when a researcher imposes …
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Relationship between Capacity of School Management and Teacher Professional Development: A Case of Selected Primary Schools in Mbeya Region
… management and teacher professional development (TPD). Specifically, it examined the capacity of schools management to support teacher professional development for primary school teachers, it looked at the various factors that affect school management to provide professional support and lastly …
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Entwicklung einer neuen Methode zur impedanzspektroskopischen Erfassung der temperaturprogrammierten Desorption von Ammoniak in H-Form Zeolithen
… desorption measurement of NH3 (NH3-TPD), the acidic properties of zeolites (H-ZSM-5 with SiO2/Al2O3 ratios from 30 to 1000). This new method, denoted IS-TPD, is based on a combination of NH3-TPD with impedance spectroscopy measurements (IS). The IS-TPD new method, with a zeolite …
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HOW TECHNOLOGY PROFESSIONAL DEVELOPMENT GUIDES INSTRUCTIONAL PRACTICE
… quality of Technology Professional Development (TPD) received by teachers, the characteristics of TPD, integration levels of technology and perceived readiness for technology integration.</p> <p>An online survey instrument was developed and used to collect data from 100 teachers of grades K-12 …
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Design of a Temperature Programmed Desorption System for the Measurement of the Desorption Kinetics of Molecules from Surfaces
Temperature programmed desorption (TPD) is an experimental technique used to measure the desorption kinetics of molecules from surfaces. This technique is performed by linearly increasing the temperature of a sample while measuring the partial pressures of the desorbing gas species. It is used to …
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Harnessing the Anaphase-Promoting Complex for Targeted Protein Degradation
Targeted protein degradation (TPD) is rapidly becoming a prevalent modality of therapeutics development due to its event-driven pharmacology that overcomes some major limitations of conventional small molecule inhibitors. One of the paradigms of TPD involves co-opting components of the …
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Teacher Professional Development: The Impact of Delivery Structure, Student Physical Presence, and Technology-Enhanced Instruction
… goal of this study is to gain insight into which TPD delivery types and which levels of student presence create the most meaningful and applicable learning for educators and to provide insight and guidance to administrators and TPD planners who are seeking ways to provide quality TPD.</p> <p>The …
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Experimental Adsorption and Reaction Studies on Transition Metal Oxides Compared to DFT Simulations
A temperature-programmed desorption (TPD) study of CO and NH₃ adsorption on MnO(100) with complimentary density functional theory (DFT) simulations was conducted. TPD reveals a primary CO desorption signal at 130 K from MnO(100) in the low coverage limit giving an adsorption energy of -35.6 ±2.1 …
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SPONTANEOUS SPEECH ANALYSIS FOR DETECTING MILD COGNITIVE IMPAIRMENT AND ALZHEIMER’S DISEASE IN THAI OLDER ADULTS
… this study, including Thai Picture description (TPD), Thai Story Recall (TSR), and Semi-structured Interview for Thai (SIT) Ninety-eight Thai older adults underwent screening tests and three spontaneous speech tests. Then they were classified into three groups, including healthy control (HC), …
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Investigations of the effects of iron, manganese, and nickel on the properties of sulfated zirconia catalysts.
… compositions. Temperature programmed desorption (TPD) measurements of surface adsorbed species were used to characterize catalyst acidities. Diffuse reflectance Fourier transform infrared spectroscopy (DRIFTS) and variable temperature diffuse reflectance Fourier transform infrared spectroscopy …
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Transfer of plasmids by genetically-engineered Erwinia carotovora
… of 3.6 X 10⁻² transconjugants per donor (TPD) and to P. <i>fluorescens</i> at a frequency of 2.4 X 10⁻⁵ TPD. In matings conducted in potato tubers inoculated using sewing needles, the respective frequencies were 4.0 X 10⁻³ and 2.0 X 10⁻³, while matings on potato slices yielded frequencies …
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Teacher professional development in an online learning community : a case study in Indonesia
… of the current Teacher Professional Development (TPD) practices still focus on teacher-centred approaches instead of collaborative approaches, and often only in the format of face-to-face interaction. Research has shown that an Online Learning Community (OLC) can support TPD and facilitate …
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A comparison of conventional heating techniques and microwave irradiation for the desorption of lithium borohydride and lithium borohydride composites
… heating. A temperature programmed desorption (TPD) rig and a custom built microwave rig were both connected to the same gas aborption system which was pressurised with hydrogen and could be operated with each system independently. A comparison in desorption characteristics was made between …
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Identifying sustainable organic management systems in urban India : case study of Pune, India
… technologies used at small scales (less than 0.5 TPD) are more expensive than landfilling; however, if a facility of at least 0.5 TPD is used, anaerobic digestion is less expensive than landfilling. Pelletization and composting become less expensive than landfilling at the scale of 5 TPD and 200 …
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Development of a computer-aided design supporting system for transformative product design
… design paradigm, Transformative Product Design (TPD), to meet the demands in the conceptual design. TPD aims to design a new product from a combination out of a base product and reference products, which have been developed.</p> <p>To expedite the TPD paradigm, <em>Interaction Network</em> is …
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Professional dialogues to foster dialogic pedagogy in mathematics: Design and test of a school-run teacher professional development programme
… teacher professional development [TPD] programme to promote dialogue in primary mathematics in Chilean primary schools. Educational dialogue is conceived as a kind of talk that is both challenging and inclusive, giving students space to express and explore ideas collectively. …
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A quantum dot heterojunction photodetector
… 4,4'-diamine (TPD) organic small molecule layer. The wide band gap TiO2 and TPD layers are found to block charge injection under reverse bias, yet serve as transport layers for photo-excited charge generated in the CdSe. The internal quantum efficiency is …
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Surface characterisation of modified pan based carbon fibres.
… while temperature programmed desorption (TPD) is used to investigate adsorption of linear alcohols (C1 to C4) on the fibres. One of the main aims of the work is to understand the reaction mechanisms that take place between the surface oxygen functionalities on treated carbon fibres and the …
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