A5049350003- Solar Thermal and Photovoltaic Systems
- solar cell performance optimization
- Photovoltaic System Optimization Techniques
- Chemical Looping and Thermochemical Processes
- RNA Research and Splicing
- Solar-Powered Water Purification Methods
- Solar Radiation and Photovoltaics
- High-Velocity Impact and Material Behavior
- Thermal Radiation and Cooling Technologies
- Oil, Gas, and Environmental Issues
- RNA and protein synthesis mechanisms
- Aerogels and thermal insulation
- Ferroelectric and Piezoelectric Materials
- Genetic Neurodegenerative Diseases
- Geology and Paleoclimatology Research
- Advancements in Solid Oxide Fuel Cells
- Geological formations and processes
- RNA modifications and cancer
- Methane Hydrates and Related Phenomena
- Muscle Physiology and Disorders
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Environmental and Social Impact Assessments
- Gas Sensing Nanomaterials and Sensors
- Photonic and Optical Devices
- Calibration and Measurement Techniques
York University
2018-2025
KBR (United States)
2024
SRI International
1987-2021
Menlo School
1995-2021
Massachusetts Institute of Technology
2017-2020
Newcastle University
1996-2019
ETH Zurich
2011-2018
Baylor College of Medicine
1995-2016
Children's Cancer Center
2015
École Polytechnique Fédérale de Lausanne
2011-2012
A floating, low-cost solar desalination system was constructed, capable of simultaneous salt rejection and heat localization for continuous operation.
Steam generation using solar energy provides the basis for many sustainable desalination, sanitization, and process heating technologies. Recently, interest has arisen low-cost floating structures that absorb radiation transfer to water via thermal conduction, driving evaporation. However, contact between structure leads fouling pins vapour temperature near boiling point. Here we demonstrate solar-driven evaporation a not in with water. The absorbs re-radiates infrared photons, which are...
In vitro selection strategies have typically been used to identify a preferred ligand, usually an RNA, for identified protein. Ideally, one would like know RNA consensus sequences in vivo as-yet-unidentified factors. The ability select RNA-processing signals be particularly beneficial the analysis of exon enhancer that function recognition during pre-mRNA splicing. Exon enhancers represent class potentially ubiquitous whose actual prevalence is unknown. To establish approach selection, we...
This work encompasses the thermodynamic characterization of four doped lanthanum manganites, namely La0.6 A0.4Mn1−yAlyO3 (A = Ca, Sr and y 0, 0.4), all showed to be promising redox materials for solar thermochemical splitting H2O CO2 H2 CO. We present oxygen nonstoichiometry measurements in temperature range T 1573 K–1773 K partial pressure pO2 4.5066 × 10−2 bar–9.9 10−5 bar. For a given pO2, is found higher when replacing divalent dopant La0.6Sr0.4MnO3 by Ca but also increases significantly...
Abstract Perovskite oxides have recently been proposed as promising redox intermediates for solar thermochemical splitting of H 2 O and CO , offering the benefit significantly reduced operating temperatures. We present a systematic experimental screening doped lanthanum manganites within composition space La 1− x (Ca,Sr) Mn y Al 3 identify several materials. In particular, 0.6 Sr 0.4 Ca boast five‐ to thirteen‐fold improvement in reduction extent compared state‐of‐the‐art material CeO...
Heat at intermediate temperatures (120-220 °C) is in significant demand both industrial and domestic sectors for applications such as water space heating, steam generation, sterilization, other processes. Harnessing heat from solar energy these temperatures, however, requires costly optical mechanical components to concentrate the dilute flux suppress losses. Thus, achieving high under unconcentrated sunlight remains a technological challenge well an opportunity utilizing thermal energy. In...
Thermochemical CO<sub>2</sub>-splitting <italic>via</italic> redox cycling of Ca, Sr and Al-doped La–Mn perovskites induces irreversible changes in the texture chemical composition these oxides.
The cardiac troponin T pre-mRNA contains an exonic splicing enhancer that is required for inclusion of the alternative exon 5.Here we show activity exquisitely sensitive to changes in sequence a 9-nucleotide motif (GAGGAAGAA) even when its purine content preserved.A series mutations increased or decreased level vivo were used correlate strength with RNA-protein interactions vitro.Analyses involving UV cross-linking and immunoprecipitation indicated only four (SRp30a, SRp40, SRp55, SRp75) six...
Cardiac dysfunction is the second leading cause of death in myotonic dystrophy type 1 (DM1), primarily because arrhythmias and cardiac conduction defects. A screen more than 500 microRNAs (miRNAs) a DM1 mouse model identified 54 miRNAs that were differentially expressed heart. More 80% exhibited downregulation toward embryonic expression pattern showed DM1-specific response. total 20 22 tested also significantly downregulated human heart tissue. We demonstrate many these are direct MEF2...
Unlike conventional optics, plasmonics enables unrivaled concentration of optical energy well beyond the diffraction limit light. However, a significant part this is dissipated as heat. Plasmonic losses present major hurdle in development plasmonic devices and circuits that can compete with other mature technologies. Until recently, they have largely kept use to few niche areas where loss not key factor, such surface-enhanced Raman scattering biochemical sensing. Here, we discuss origin...
The design, fabrication, and on-sun characterization of a solar dish concentrating system for performing the two-step thermochemical redox splitting H2O CO2 is presented. It comprises primary sun-tracking 4.4 m-dia. concentrator coupled to secondary planar rotating reflector. This optical arrangement enables operation two (or more) reactors side-by-side both reactions simultaneously by alternating input between them while making continuous uninterrupted use incoming concentrated sunlight....
Clean drinking water is increasingly perceived as one of the most critical global challenges. Direct solar desalination with a minimal carbon footprint promising technology to alleviate challenge. However, this still faces series problems, such poor salt-rejection absorber and low condensation efficiency output. Currently, design utilization infrared light shows unique advantages in solving these problems. With background, Focus Review aims summarize state-of-the-art progress three...
Twelve 1–2 m, 10-cm-diameter gravity cores collected in 1988 and 1991, from the continental shelf fjords of East Greenland near Kangerlussuaq Fjord/Trough (ca. 68°N, 32°W), have distinct changes lithofacies quantity iceberg rafted (IRD) sediments. These are readily observed X-radiographs split cores. We quantify IRD contribution through grain-size analyses counting number clasts >2 mm X-radiographs. Chronological control is provided by acclerated mass spectroscopy 14C dates on foraminifera....