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Filtering by: Subject Sandwich construction -- Design Remove constraint Subject: Sandwich construction -- Design Advisor Paul, Brian K. Remove constraint Advisor: Paul, Brian K.

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  • Determining the dimensional requirements of a reliable compression sealing method for use in microchannel hemodialysers

    Creator:
    Ward, Dustin K.
    Abstract:
    Almost 600,000 people in the United States were treated for End Stage Renal Disease in 2010. A majority of those people received hemodialysis from central medical facilities. It has been reported a better treatment option for these patients would be realized if the patients had more frequent hemodialysis treatments. A...
    Resource Type:
    Masters Thesis
    Full Text:
    initial clamp design. Thank you Neill Thornton for all of your help and training in the lab as well as

  • Comparison of two microvalve designs fabricated in mild steel using microprojection welding and capacitive dissociation

    Creator:
    Terhaar, Tyson J.
    Abstract:
    Since the dawn of the computer age, there has been a push to create miniature devices. These devices were initially integrated circuit (IC) devices to perform calculations for computers. As the technology progressed, the scope of the devices diverged to included microelectromechanical (MEMS) devices, meaning that the devices perform mechanical...
    Resource Type:
    Masters Thesis
    Full Text:
    devices require: 1) revolutionary design, accounting for the scaling effects on device performance; 2

  • Development of self-registration features for the assembly of a microchannel hemodialyser

    Creator:
    Porter, Spencer D.
    Abstract:
    More than 1.2 million people worldwide require regular hemodialysis therapy to treat end stage renal failure. In the United States alone, there are 300,000 patients and the National Kidney Foundation predicts that this number will double in the next 10 years. Currently most dialysis patients receive treatment at a dialysis...
    Resource Type:
    Masters Thesis
    Full Text:
    mass transfer area of 90.59 mm2. A design is proposed describing membrane utilization of over 79

  • Development of a passive micro-ball valve

    Creator:
    Wangwatcharakul, Worawut
    Abstract:
    A novel design, material, and fabrication method are presented to fabricate a passive micro-ball valve. Microvalves are critical components in microflow control devices used to control the fluid flows in microchannels. These microflow control devices can be integrated with microsensors to form micro analysis systems. Glass/silicon-based fabrication is complicated and...
    Resource Type:
    Masters Thesis
    Full Text:
    of a Passive Micro-ball Valve. Abstract approved. Brian K. Paul A novel design, material, and

  • Laser keyhole welding for microlaminating a high-temperature microchannel array

    Creator:
    Lajevardi, Babak
    Abstract:
    Microchannel process technology (MPT) components are chemical unit operations which exploit highly-parallel arrays of microchannels to process large fluid volumes for portable and distributed applications. Microchannel heat exchangers (MCHXs) have demonstrated 3 to 5 times higher heat fluxes when compared to conventional heat exchangers resulting in proportionate reductions in size...
    Resource Type:
    Masters Thesis

  • Development of a process for fabricating high-aspect-ratio, meso-scale geometries in stainless steel

    Creator:
    Walker, Benjamin A.
    Abstract:
    Miniature energy and chemical systems (MECS) are miniature thermal, fluid, and chemical devices in the mesoscale size range between a sugar cube and a human fist. MECS take advantage of improved rates of mass and heat transfer that have been observed at the microscale. There are many potential applications for...
    Resource Type:
    Masters Thesis
    Full Text:
    school, quality control, design of experiments and college football. Unfortunately, I only mastered the

  • The use of electrochemical micromachining for making a microfloat valve

    Creator:
    Park, Sang-Bin
    Abstract:
    Micromanufacturing consists of processes for producing structures, devices or systems with feature sizes measured in micrometers. Micromanufacturing began in the mid-1960's with microelectronics fabrication technology. In the 1980's, Micro-Electro-Mechanical Systems (MEMS) began to be developed, in which electrical and mechanical subsystems were integrated at small scales. More recently, Microtechnology-based Energy...
    Resource Type:
    Masters Thesis
    Full Text:
    .............................. 10 3. DEVICE DESIGN ...................................................................... 12

  • Adhesive microlamination protocol for low-temperature microchannel arrays

    Creator:
    Paulraj, Prawin
    Abstract:
    A new adhesive bonding method is introduced for microlamination architectures, for producing low-temperature microchannel arrays in a wide variety of metals. Sheet metal embossing and chemical etching processes have been used to produce sealing bosses and flow features, resulting in approximately 50% fewer laminae over traditional methods. These lamina designs...
    Resource Type:
    Dissertation
    Full Text:
    ........................................................................................................... 59 3.3. Constraints with Original Design

  • Application of ultrasonic welding to the rapid prototyping of microfluidic systems for biotechnology

    Creator:
    Aramphongphun, Chuckaphun
    Abstract:
    This paper introduces an alternative technique for the development of microfluidic systems for biotechnology based on mechanical machining and ultrasonic welding. Advantages of this approach over existing prototyping approaches involving the rapid development of tooling include: (a) short cycle time, (b) design flexibility, and (c) low cost manufacturing. In addition,...
    Resource Type:
    Masters Thesis
    Full Text:
    cycle time, (b) design flexibility, and (c) low cost manufacturing. In addition, the process provides

  • Novel architecture for entrapment of elastomeric membranes in microfluidic systems

    Creator:
    Blackwell, Edward P.
    Abstract:
    This thesis presents a novel microlamination architecture that enables the large scale integration of valves into low cost micro energy and chemical systems via membrane entrapment. Polycarbonate layers embossed with microfluidic channels were bonded by ultrasonic welding of raised embossed protrusions that penetrate though the PDMS membranes. The bonding pressure...
    Resource Type:
    Masters Thesis
    Full Text:
    as proportional flow control and shut off valves. The architecture gives additional design freedom