Now showing items 4809-4828 of 7005

    • Nano-materials for novel magneto-rheological liquids and nano-fluids 

      Samouhos, Stephen V. (Stephen Vincent), 1982- (Massachusetts Institute of Technology, 2007)
      Introduction: Nanotechnology, in its many forms, has evolved as a forefront of the global scientific and technological frontier. Materials once disregarded as very small dust or particulate impurities twenty years ago, are ...
    • Nano-scale scratching in chemical-mechanical polishing 

      Eusner, Thor (Massachusetts Institute of Technology, 2008)
      During the chemical-mechanical polishing (CMP) process, a critical step in the manufacture of ultra-large-scale integrated (ULSI) semiconductor devices, undesirable nano-scale scratches are formed on the surfaces being ...
    • A nano-stepping robotic instrumentation platform 

      Wahab, Adam Joseph (Massachusetts Institute of Technology, 2013)
      The development of an Autonomous Nano-stepping Tool (ANT) system is presented. Each ANT is a small, tripodal, robotic instrument capable of untethered precision motion within a quasi-three-dimensional workspace of arbitrary ...
    • Nanocomposites as thermoelectric materials 

      Hao, Qing (Massachusetts Institute of Technology, 2010)
      Thermoelectric materials have attractive applications in electric power generation and solid-state cooling. The performance of a thermoelectric device depends on the dimensionless figure of merit (ZT) of the material, ...
    • Nanoengineered surfaces for advanced thermal management 

      Xiao, Rong, S.M. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2009)
      Thermal management is a critical challenge for a variety of applications including integrated circuits (ICs) and energy conversion devices. As the heat fluxes exceed 100 W/cm2, novel cooling solutions need to be developed. ...
    • Nanofluid-based receivers for high-temperature, high-flux direct solar collectors 

      Lenert, Andrej (Massachusetts Institute of Technology, 2010)
      Solar power plants with surface receivers have low overall energy conversion efficiencies due to large emissive losses at high temperatures. Alternatively, volumetric receivers promise increased performance because solar ...
    • Nanofluidic devices for rapid analysis of DNA and proteins 

      Fu, Jianping, Ph. D. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2007)
      Direct analysis of biologically-relevant entities such as nucleic acids and proteins offers the potential to outperform conventional analysis techniques and diagnostic methods through enhancements in speed, accuracy, and ...
    • Nanofluidic system for single molecule manipulation and analysis 

      Sen, Yi-Heng (Massachusetts Institute of Technology, 2008)
      This thesis focuses on characterizing and controlling the translocation of single 48.5 kbp [lambda]-DNA molecules through an artificial nanopore with the objective of enabling multiple measurements on the same molecule. ...
    • The Nanogate : nanoscale flow control 

      White, James R. (James Robert), 1976- (Massachusetts Institute of Technology, 2003)
      The handling of extremely small samples of gases and liquids has long been a subject of research among biologists, chemists and engineers. A few scientific instruments, notably the atomic force microscope and the surface ...
    • Nanomanufacturing of functional nanostructured surfaces for efficient light transport 

      Kim, Jeong-Gil (Massachusetts Institute of Technology, 2015)
      Nanostructured surfaces have given rise to many unique optical properties, such as broadband anti-reflectivity, structural coloring effects, and enhanced light extraction from high refractive index materials due to their ...
    • Nanomaterial-enabled manufacturing for next-generation multifunctional advanced composite prepreg laminate architectures 

      Lee, Jeonyoon (Massachusetts Institute of Technology, 2018)
      Manufacturing of advanced aerospace-grade structural composites has traditionally utilized autoclaves to impart heat and pressure, in addition to vacuum, to create high-quality, void (defect)- free, reproducible structures. ...
    • Nanomechanics of cartilage at the matrix and molecular levels 

      Tavakoli Nia, Hadi (Massachusetts Institute of Technology, 2013)
      Cartilage, as well as many soft connective tissues, functions mechanically across a wide spectrum of daily loading frequencies (time scales), from <1 Hz in slow activities such as walking, to 1000 Hz for high-rate activities ...
    • Nanoparticle-chaperoned urinary 'synthetic biomarkers' for profiling proteases in cancer 

      Abudayyeh, Omar O (Massachusetts Institute of Technology, 2012)
      Many biomarker-based diagnostics have poor predictive value because of their dependence on naturally occurring endogenous biomolecules to indicate disease. This work presents a diagnostic platform that uses nanoparticles ...
    • Nanoporous monolayer graphene membranes for water purification : from concept to realization 

      O'Hern, Sean C. (Sean Carson) (Massachusetts Institute of Technology, 2015)
      Graphene, a single sheet of carbon atoms, may provide the foundation for a new class of highly permeable membranes for water purification and desalination. Though atomically thin, graphene exhibits both exceptional mechanical ...
    • Nanoscale electron, phonon and spin transport in thermoelectric materials 

      Liao, Bolin, Ph. D. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2016)
      Climate change is among the most critical challenges that are facing the human race in the 21st century. One of the major factors that leads to climate change is the increasing consumption of fossil fuels, driven by ...
    • Nanoscale heat conduction with applications in nanoelectronics and thermoelectrics 

      Yang, Ronggui, Ph. D. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2006)
      When the device or structure characteristic length scales are comparable to the mean free path and wavelength of energy carriers (electrons, photons, phonons, and molecules) or the time of interest is on the same order as ...
    • Nanoscale heterojunctions of transition metal oxide and silicon for high-efficiency oxygen evolution reaction 

      Kim, Sohae (Massachusetts Institute of Technology, 2018)
      Hydrogen fuel, storing solar energy by splitting water, is of great potential as efficient energy storage due to its sustainability, carbon-neutrality and high energy density per mass. One of major bottlenecks for the ...
    • Nanostructured multifunctional materials for control of light transport and surface wettability 

      Choi, Hyungryul (Massachusetts Institute of Technology, 2014)
      Biological surfaces have evolved to optimize their structures and physical and chemical properties at the micro/nanoscale for adaptation to different environments, exhibiting a wide variety of beneficial functions, ranging ...
    • Nanostructured thin film thermoelectric composite materials using conductive polymer PEDOT:PSS 

      Kuryak, Chris A. (Chris Adam) (Massachusetts Institute of Technology, 2013)
      Thermoelectric materials have the ability to convert heat directly into electricity. This clean energy technology has advantages over other renewable technologies in that it requires no sunlight, has no moving parts, and ...
    • Nanostructures and alloys : multiple scattering and nonlinearities in phonon transport 

      Mendoza, Jonathan Michael (Massachusetts Institute of Technology, 2014)
      Understanding how thermal transport is affected by disorder is crucial to the prediction and engineering of novel materials suitable for thermoelectric and device applications. Ab initio methods have demonstrated accurate ...