Download or read book Development of Microactuators Based on the Magnetic Shape Memory Effect written by Yeduru, Srinivasa Reddy and published by KIT Scientific Publishing. This book was released on 2013-12-10 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: The giant magneto-strain effect in Ni-Mn-Ga alloys is particularly attractive for actuator applications. Two different approaches are being pursued to develop MSM microactuators. To observe large deflections of Ni-Mn-Ga microactuators, the material should be exhibiting low twinning stress and large magnetic anisotropy. In addition, design rules and boundary conditions for operating the Ni-Mn-Ga actuator material are having significant importance for evolution of performance characteristics.

Download or read book Development of Microactuators Based on the Magnetic Shape Memory Effect written by Srinivasa Reddy Yeduru and published by . This book was released on 2020-10-09 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: The giant magneto-strain effect in Ni-Mn-Ga alloys is particularly attractive for actuator applications. Two different approaches are being pursued to develop MSM microactuators. To observe large deflections of Ni-Mn-Ga microactuators, the material should be exhibiting low twinning stress and large magnetic anisotropy. In addition, design rules and boundary conditions for operating the Ni-Mn-Ga actuator material are having significant importance for evolution of performance characteristics. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

Download or read book Shape Memory Microactuators written by Manfred Kohl and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overview of recent achievements, describing the microactuator development of microvalves and liner actuators comprehensively from concept through prototype. Further key aspects included are three-dimensional models for handling complex SMA actuator geometries and coupled simulation routines that take multifunctional properties into account. Mechanical and thermal optimization criteria are introduced for actuator design, allowing an optimum use of the shape memory effect. It is shown that some of the prototypes presented, e.g. SMA microgrippers, already outperform conventional components.

Download or read book Advanced Elastocaloric Cooling Devices Based on Shape Memory Alloy Films written by Brüderlin, Florian and published by KIT Scientific Publishing. This book was released on 2022-11-15 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elastocaloric cooling is an emerging solid-state cooling technology with the potential to provide environmentally friendly, efficient cooling. The elastocaloric effect in superelastic shape memory alloy films is used to develop advanced cooling devices for small-scale applications. Cascaded and parallelized devices are developed to increase device temperature span and cooling capacity. The concepts are proven experimentally, a maximum temperature span of 27° C is achieved in a cascaded device.

Download or read book Dynamic Light Filters written by Isabel Dias Cabral and published by Springer Nature. This book was released on 2020-01-21 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers an extensive, interdisciplinary overview of dynamic textiles. Specifically, it discusses new findings and design concepts concerning the integration of smart materials into textile substrates and their corresponding dynamic behavior. Introducing the topic of dynamic color in textiles, it presents experimental procedures to achieve color change and dynamic light transmittance in thermochromic textiles, and examines their thermoresponsive behavior and respective electrical activation. Moreover, it also addresses the topic of dynamic form and reports on the authors’ original findings using shape-memory alloys and geometric morphologies based on origami techniques. Covering innovative smart textiles and important considerations in terms of design variables when developing textiles with dynamic qualities, and providing extensive, practice-oriented insights into the interaction of textiles with light, it is primarily intended for academics, researchers and practitioners developing smart, dynamic and interactive textiles. The sections describing in detail the experimental work aimed at the integration of smart materials in textile substrates also appeal to professionals in the textile industry.

Download or read book Development of an Electrochemical Biosensor Platform and a Suitable Low Impedance Surface Modification Strategy written by Pires Carneiro, Leonardo and published by KIT Scientific Publishing. This book was released on 2014-11-17 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, a flexible biosensor platform based on impedance spectroscopy and comprising of gold electrodes, polymeric flow cells and a suitable surface modification were developed. Initially, several surface modification techniques described in literature were implemented and optimized for impedimetric biosensors but their individual limitations rendered them unsuitable for this biosensor platform. A novel method based on photobleaching was developed and tested showing satisfactory results.

Download or read book Micro and Nanostructured Microfluidic Devices for Localized Protein Immobilization and Other Biomedical Applications written by Steidle, Nicole E. and published by KIT Scientific Publishing. This book was released on 2014-12-23 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new immobilization method for the localized adsorption of proteins on thermoplastic surfaces is introduced. Artificial three-phase interfaces were realized by surface structuring to control the wetting behavior which lead to a preferred adsorption in these modified areas. Additionally, different fabrication methods were analyzed to determine mass fabrication capabilities. These fabrication methods also allowed the production of fully structured microchannels to tune the fluids behavior within.

Download or read book Magnetoresistive and Thermoresistive Scanning Probe Microscopy with Applications in Micro and Nanotechnology written by Meier, Tobias and published by KIT Scientific Publishing. This book was released on 2014-10-02 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents approaches to extend limits of scanning probe microscopy techniques towards more versatile instruments using integrated sensor concepts. For structural surface analysis, magnetoresistive sensing is introduced and thermoresistive sensing is applied to study nanoscale phonon transport in chain-like molecules. Investigating with these techniques the properties of shape memory polymers, a fabrication method to design application-inspired micro- and nanostructures is introduced.

Download or read book Innovative micro NMR MRI functionality utilizing flexible electronics and control systems written by Nassar, Omar and published by KIT Scientific Publishing. This book was released on 2023-08-15 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advantages offered by the flexible electronics and control systems technologies were utilized for tackling the challenges facing two crucial Magnetic Resonance (MR) applications. The first application is in the field of interventional Magnetic Resonance Imaging (MRI), and the other application is in the field of Nuclear Magnetic Resonance spectroscopy (NMR).

Download or read book NMR micro detectors tailored for multinuclear and electrochemistry lab on a chip applications written by Davoodi, Hossein and published by KIT Scientific Publishing. This book was released on 2022-01-14 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work offers three solutions tailored to specific applications to overcome NMR challenges in the micro-domain. As the first sub-topic of this work, different potential electrode designs, compatible with NMR technique, are suggested and experimentally evaluated. As the second focus point, this work tackles multinuclear detection challenges. In parallel, a low-cost, broadband insert is discussed to enhance the sensitivity of standard NMR coils when a small sample volume is available.

Download or read book X ray optics made by X ray lithography Process optimization and quality control written by Koch, Frieder Johannes and published by KIT Scientific Publishing. This book was released on 2017-10-16 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Power Generation by Resonant Self Actuation written by Joseph, Joel and published by KIT Scientific Publishing. This book was released on 2023-12-28 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die Forschung im Bereich der Mikro-Energiegewinnungssysteme wurde durch den Bedarf an autarken, stabilen Energiequellen für vernetzte drahtlose Sensoren vorangetrieben. Abwärme, insbesondere bei Temperaturen unter 200 °C, stellt eine vielversprechende, aber mit den derzeitigen Umwandlungstechnologien schwer zu gewinnende Energiequelle dar. - Research into micro energy harvesting systems has been driven by the need for self-sustaining, stable power sources for interconnected wireless sensors. Waste heat, particularly at temperatures below 200 °C, presents a promising but challenging energy source to recover using current conversion technology.

Download or read book In Situ Characterization and Modelling of Drying Dynamics for Scalable Printing of Hybrid Perovskite Photovoltaics written by Ternes, Simon and published by KIT Scientific Publishing. This book was released on 2023-03-27 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid perovskite photovoltaics could play a vital role in future’s renewable energy production. However, there are still severe challenges when scaling the technology. In this work, perovskite solution films drying in laminar and slot-jet air flows are investigated extensively by optical in situ characterization. The main results are a quantitative model of perovskite drying dynamics and a novel in situ imaging technique – yielding valuable predictions for large-scale perovskite fabrication.

Download or read book Novel MRI Technologies for Structural and Functional Imaging of Tissues with Ultra short T Values written by Oezen, Ali Caglar and published by KIT Scientific Publishing. This book was released on 2017-06-30 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Photon upconversion heterostructures made from surface anchored metal organic frameworks written by Oldenburg, Michael and published by KIT Scientific Publishing. This book was released on 2019-01-22 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fabrication and Analysis of Bio Inspired Smart Surfaces written by Röhrig, Michael and published by KIT Scientific Publishing. This book was released on 2014-02-18 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work introduces novel techniques for the fabrication of bio-inspired hierarchical micro- and nanostructures. The enormous potential of these techniques is demonstrated by presenting a synthetic gecko-like adhesive matching the adhesion and self-cleaning of geckos very closely and a nanofur which is superhydrophobic, superoleophilic, underwater air-retaining, and even self-healing when surface treated.

Download or read book Bioinspired Superhydrophobic Nano and Microstructured Surfaces for Drag Reduction and Optoelectronics written by Felix Vüllers and published by KIT Scientific Publishing. This book was released on 2018-08-30 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inspired by superhydrophobic leaves of water plants, a flexible superhydrophobic self-cleaning, transparent thin polymeric nanofur film was fabricated through highly scalable hot embossing and hot pulling techniques. Nanofur can retain an air film underwater, whose stability against external stimuli such as high pressure and movement through fluids is investigated. Additionally, the optical properties of nanofur are investigated and exploited to enhance the efficiency of optoelectronic devices.