The Experts below are selected from a list of 18204 Experts worldwide ranked by ideXlab platform
Adnan Iftikhar - One of the best experts on this subject based on the ideXlab platform.
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a broadband electromagnetic type energy harvester for smart sensor devices in biomedical applications
Sensors and Actuators A-physical, 2018Co-Authors: Muneeb Ullah Anjum, Adnan Fida, Iftikhar Ahmad, Adnan IftikharAbstract:Abstract This paper presents the design, fabrication and Experimentation of a low power Electromagnetic Energy Harvester (EM-EH) having a broader bandwidth. The proposed prototype exploits the human body motion to generate power for the low profile smart biomedical devices. The working of the proposed EM-EH is illustrated in both Laboratory and in the real-time environment. The prototype of EM-EH is fabricated through computer numerical control milling and turning machines. The device is tested in-Laboratory at different acceleration levels, and it was inferred that the EM-EH when excited at 3 g induces a maximum voltage of 3800 mV at a resonant frequency of 20 Hz . The results showed that the device successfully charged a completely discharged 1.5 V ( 2850 m A H ) battery within an hour. Additionally, the Laboratory Experimentation showed that EM-EH is more efficient for a widened operating bandwidth of 70 H z as compared to the conventional devices reported in the literature. Next, the real-time performance of the proposed EM-EH was investigated for harvesting energy from the human body motion such as walking, jogging, and stretching exercise with variable frequency vibrations.
Debra K. Weisenstein - One of the best experts on this subject based on the ideXlab platform.
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Stratospheric controlled perturbation experiment: a small-scale experiment to improve understanding of the risks of solar geoengineering
Philosophical Transactions of the Royal Society A, 2014Co-Authors: John A Dykema, James G. Anderson, David W. Keith, Debra K. WeisensteinAbstract:Although solar radiation management (SRM) through stratospheric aerosol methods has the potential to mitigate impacts of climate change, our current knowledge of stratospheric processes suggests that these methods may entail significant risks. In addition to the risks associated with current knowledge, the possibility of ‘unknown unknowns’ exists that could significantly alter the risk assessment relative to our current understanding. While Laboratory Experimentation can improve the current state of knowledge and atmospheric models can assess large-scale climate response, they cannot capture possible unknown chemistry or represent the full range of interactive atmospheric chemical physics. Small-scale, in situ Experimentation under well-regulated circumstances can begin to remove some of these uncertainties. This experiment—provisionally titled the stratospheric controlled perturbation experiment—is under development and will only proceed with transparent and predominantly governmental funding and independent risk assessment. We describe the scientific and technical foundation for performing, under external oversight, small-scale experiments to quantify the risks posed by SRM to activation of halogen species and subsequent erosion of stratospheric ozone. The paper's scope includes selection of the measurement platform, relevant aspects of stratospheric meteorology, operational considerations and instrument design and engineering.
Marc Buchner - One of the best experts on this subject based on the ideXlab platform.
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remote Laboratory Experimentation
American Control Conference, 1998Co-Authors: Mohamed Shaheen, Kenneth A. Loparo, Marc BuchnerAbstract:The aim of this work is to provide the students of both Case Western Reserve and Cooper Union Universities with remote access to the Bytronic Process Control unit, referred to as the process rig, in the Process Control and Automation Laboratory at Case Western Reserve University over the Internet. Using a web browser, the user can log-in parameters from a remote client to a LabVIEW G web server which is connected to the process rig via a PLC control module. When the server receives a request specifying a Common Gateway Interface Virtual Instrument (CGI VI), the server loads the VI and starts its execution. The CGI then reads the information that came with the request, controls the operation of the process rig in accordance with the parameters posted by the user and writes the data that is to be returned to the client. The output data files are also uploaded to an anonymous ftp-site from which the user can download them for further processing.
Muneeb Ullah Anjum - One of the best experts on this subject based on the ideXlab platform.
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a broadband electromagnetic type energy harvester for smart sensor devices in biomedical applications
Sensors and Actuators A-physical, 2018Co-Authors: Muneeb Ullah Anjum, Adnan Fida, Iftikhar Ahmad, Adnan IftikharAbstract:Abstract This paper presents the design, fabrication and Experimentation of a low power Electromagnetic Energy Harvester (EM-EH) having a broader bandwidth. The proposed prototype exploits the human body motion to generate power for the low profile smart biomedical devices. The working of the proposed EM-EH is illustrated in both Laboratory and in the real-time environment. The prototype of EM-EH is fabricated through computer numerical control milling and turning machines. The device is tested in-Laboratory at different acceleration levels, and it was inferred that the EM-EH when excited at 3 g induces a maximum voltage of 3800 mV at a resonant frequency of 20 Hz . The results showed that the device successfully charged a completely discharged 1.5 V ( 2850 m A H ) battery within an hour. Additionally, the Laboratory Experimentation showed that EM-EH is more efficient for a widened operating bandwidth of 70 H z as compared to the conventional devices reported in the literature. Next, the real-time performance of the proposed EM-EH was investigated for harvesting energy from the human body motion such as walking, jogging, and stretching exercise with variable frequency vibrations.
M. Van Der Perk - One of the best experts on this subject based on the ideXlab platform.
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HESS Opinions On the use of Laboratory Experimentation: "Hydrologists, bring out shovels and garden hoses and hit the dirt"
Hydrology and Earth System Sciences, 2010Co-Authors: Maarten G. Kleinhans, Marc F. P. Bierkens, M. Van Der PerkAbstract:From an outsider's perspective, hydrology com- bines field work with modelling, but mostly ignores the po- tential for gaining understanding and conceiving new hy- potheses from controlled Laboratory experiments. Sivapalan (2009) pleaded for a question- and hypothesis-driven hydrol- ogy where data analysis and top-down modelling approaches lead to general explanations and understanding of general trends and patterns. We discuss why and how such under- standing is gained very effectively from controlled experi- mentation in comparison to field work and modelling. We argue that many major issues in hydrology are open to exper- imental investigations. Though experiments may have scale problems, these are of similar gravity as the well-known problems of fieldwork and modelling and have not impeded spectacular progress through Experimentation in other geo- sciences.
