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Prognostics and health management is a method within the concepts of the Internet of Things, that permits the assessment of a system under its actual application conditions. It integrates sensor data with models that enable in-situ assessment of the “health” (e.g. deviation or degradation) of a system from an expected normal operating condition and also predicts the future state of the system based...
Seeking alternatives not containing In and Ga, the related thin film solar cells (TFSC's) material is Cu2ZnSnS4 (CZTS), which has drawn much attention during past few years because of their easy processing ability, high efficiency at low cost, and environmental eco-friendliness. Moreover, CZTS is composed of earth-abundant elements; it has optical absorption coefficient (105 cm-1) and direct band...
Sustainable success in a fiecely competitive environment requires a business to have creative innovation and forward thinking leadership. As an entrepreneur, I consider myself as student of leadership. In this presentation I outlined my approach for sustainable success by studying the perspectives of numerous corporate leaders and spiritual leaders. In summary I learned that Entrepreunership and leadership...
Actuator applications of piezoelectrics started in late 1970s, and enormous investment was installed on practical developments during '80s, aiming at consumer applications such as precision positioners with high strain materials, multilayer device designing and mass-fabrication processes for portable electronic devices, ultrasonic motors for micro-robotics and smart structures. After the slump due...
Graphene/carbon composite nanofibers (GCNFs) with attached TiO2 nanoparticles (TiO2-GCNF) were prepared, and their photocatalytic degradation ability under visible light irradiation was assessed. They were characterized using scanning and transmission electron microscopy, X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, and ultraviolet-visible diffuse spectroscopy. The results...
The non judicious application of a particular class of pesticides-organophosphates (OPs) to control agricultural pest has become a serious environmental issue leading to soil and subsequently surface & ground water pollution. The environmental concerns regarding persistence of organophosphates and toxic metabolites in soil and ground water has stimulated the research to develop rapid and sensitive...
Long-wavelength infrared (LWIR) detectors are important in many different applications such as space surveillance systems, low-background infrared seeker-tracker systems, remote environmental monitoring, remote analysis of gases in outer space, and remote temperature measurement. One primary concern with producing LWIR detectors is that they must be made with a material having an energy band gap small...
During the last two decades, focused ion beam (FIB) technology has been used as a tool in highly demanding applications in the field of nanotechnology such as repair of photolithography masks, repair and modification of integrated circuits, TEM sample preparation, selective implantation, resist exposure etc. The technology of using FIBs for nano/micro fabrication is also called direct writing, which...
DC SQUID sensors based on Nb-AlOx-Nb Josephson junctions were designed and developed at IGCAR, Kalpakkam. Necessary electronics to linearize the SQUID output was developed in-house. These SQUID sensors were used to develop various measuring systems like SQUID magnetometer, SQUID based NonDestructive Evaluation system and multichannel SQUID based biomagnetic measuring systems. In addition supportive...
The presentation describes the function of rockets to launch the space shuttle into the space, different processes involved in rocket manufacturing, fuel mixing process including ingredients of the fuel, casting, static test, igniter installation, shipment of the segments to Kennedy Space Center (KSC), assembly at KSC, etc. It also involves space Orbiter installation, launch preparation, launch, motor...
This research presents a metal functionalized titanium dioxide (TiO2) nanotube based sensor developed for detection of volatile biomarkers (methyl p-anisate and methyl nicotinate) associated with tuberculosis (TB). In this work self-aligning TiO2 nanotubes were fabricated, and functionalized with cobalt for specific binding to the volatile biomarkers of interest. Mimics of the volatile biomarkers...
An optical sensor is probably the most engaging areas of research at present, given the number of publications that come out in this area. Starting with simple optical fiber sensors for physical parameters such as temperature, strain, etc. to the more complex biosensing strategies, optical sensors promise immunity to electrical interferences, ease of manufacturing and easy acceptance from the user...
Studies on infectious diseases have helped us understand the extent to which public health systems would benefit from mapping the real-time distribution, condition and treatment efficacy of infectious diseases. Evidence suggests there is deficiency in timely and relevant geographic information that is undermining clinical, epidemiological and public health aspirations in areas affected with epidemic-prone...
Nanoengineering requires transformational research and technologies in several areas that necessitate understanding of the nanoscale phenomena and processes using direct measurements and simulations. Computational modeling in nanoengineering is highly interdisciplinary with a potential to enhance the nanotechnology field from an empirical science to a quantitative engineering field. Computational...
Nanobiotechnology has evolved into a unique interdisciplinary field involving physics, materials science, chemistry, biology, computer science, and multiple enginering fields. Likewise, DNA nanotechnology is a quickly developing field with esentialy no overwhelming technical dificultiesinhibitngprogres toward designing and fabricating new shapes of DNA nanostructures in al dimensions. In this field,...
Wireless Sensor Networks (WSN) is an emerging technology with a potential to revolutionize the way we sense and transmit the information. The applications are many and look to be limited by our imagination and ingenuity. Some of the important applications are process monitoring, military surveillance, structural health monitoring, environment monitoring, health monitoring, Nuclear, Biological and...
Nanoparticles conjugated with biomolecules are promising building blocks for assembly into nanostructured functional materials for developing biomarker platforms because of their size dependent optical and electrical properties. Nanoparticles and nanodevices enable study of a wide range of biological phenomena extending from biomolecular interactions such as protein-protein, antibody-antigen or DNA...
There is a growing interest on microfluidic immunosensors for use as point-of-care diagnostic devices. In typical microfluidic immunosensors, the channel walls are functionalized with antibodies through intermediate linker molecules. The carrier fluid containing the antigens flows through the channels, and the antigens diffuse and electromigrate to the walls as the carrier fluid is convected along...
The agri-food market the world over has increased biological, chemical and physical threats to food products, triggering a bigger consumer demand on process control, quality and safety of these products. Bio-sensors can play a vital role in the agricultural and food sectors to control production processes and ensure greater food quality and safety by reliable, fast and cost effective monitoring procedures...
Compositions of nominal formula, SrFe1−xTixO3-δ (x = 0 − 0.8) were prepared by solid state method and characterized by X-ray diffraction and Mossbauer spectroscopic studies. Electrical conductivities of these samples were studied at different temperatures in three different oxygen concentrations. Thin films of SrFe0.2Ti0.8O3-δ and SrFe0.35Ti0.65O3-δ were deposited on polycrystalline alumina using...
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