Search Results - environmental

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  1. Radiotherapy is a common medical procedure, especially for the treatment of cancers such as head and neck, breast prostate, lung and rectum. It is a complex process aimed at maximizing delivery of the planned dose to the tumor sites while minimizing unnecessary radiation to healthy tissues. Today, radiotherapy procedures make use of image guidance ...
    Published: 6/21/2017
  2. With the ever-expanding need for renewable energy sources growing, much time and energy is allocated to finding new and innovative technologies. Current membrane reactors focus on a specific class of photocatalyst or are limited to air purification only. This approach does not take into consideration a broader range of the electromagnetic spectrum,...
    Published: 2/23/2017
  3. Spatial changes during building construction usually manifest as deviations between the as-designed model and the as-built conditions. These deviations can lead to errors that result in delays and additional costs. Project engineers often spend significant time, money, and resources to manually track and analyze changes between the as-designed mode...
    Published: 12/24/2016
  4. High speed mid-infrared (MIR) photodetectors are crucial in numerous applications, ranging from hyper-spectral imaging and biomedical sensing to environmental monitoring and astronomy. However, fundamental limitations in current technologies restrict the scope of use for these photodetectors. Current technologies suffer from weaknesses such as redu...
    Published: 12/24/2016
    Inventor(s): Yu Yao
  5. Controlling products like carbon dioxide from combustion systems can help chemical manufacturers adjust to the recent limit on carbon emissions by the Environmental Protection Agency. Existing control techniques use carbon dioxide as feed to generate reusable chemicals thus reducing emissions. However, manufacturers use expensive modified combustio...
    Published: 11/1/2016
    Inventor(s): Jean Andino, Selisa Rollins
  6. Traffic signal control systems are inefficient for simulating traffic and constrain both research and development. Proposed traffic control systems require high computing power or physical replacement of hardware, which results in high manufacturing costs. Therefore, there is a need for a centralized traffic control system that quickly simulates tr...
    Published: 10/20/2016
  7. Enzyme-induced carbonate precipitation (EICP) is a technique used for soil stabilization. EICP cements soil particles together using urease enzymes to precipitate calcium carbonate in a water-based solution. EICP may be used as a means of improving the bearing capacity of soils, preventing erosion, and mitigating the potential for earthquakeÔÇÉinduce...
    Published: 8/26/2016
  8. Aminoglycoside antibiotics are known to prevent growth of gram-negative bacteria by inhibiting protein synthesis. Aminoglycosides possess biocompatible sugar groups as well as multiple amines in the same molecule. Their tenability, biocompatibility and natural affinity towards biomolecules make them excellent candidates for generating diverse resin...
    Published: 8/16/2016
  9. Unlike typical sorbents, certain moisture/humidity swing sorbents have an increased affinity for carbon dioxide as they dry out in open air, making them an excellent candidate for carbon capture and harmful emissions reduction. However, establishing the conditions for moisture swing becomes challenging as the carbon dioxide concentration in open ai...
    Published: 7/15/2016
    Inventor(s): Klaus Lackner
    Keywords(s): Environmental
  10. Capturing carbon dioxide from open air to minimize harmful emissions becomes less effective with lower carbon dioxide concentration. To address this, scientists use moisture swing sorbents which are chemicals that bind to carbon dioxide in dry environments and release it when exposed to moisture. Metal-organic frameworks (MOFs) contain a metal and ...
    Published: 7/15/2016

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