Cardon Childrens Medical Center Pediatric Intensive Care Unit 1400 S Dobson Rd FL 2, Mesa, AZ 85202 4804123340 (phone), 4804127974 (fax)
Languages:
English
Description:
Ms. Harrison works in Mesa, AZ and specializes in Critical Care - Pediatric. Ms. Harrison is affiliated with Banner Thunderbird Medical Center and Cardon Childrens Medical Center.
Robert C. McDonald - Stow MA, US Katherine E. Harrison - North Cambridge MA, US Min Chen - Naperville IL, US
International Classification:
G01N 27/26
US Classification:
205775, 204431
Abstract:
Metal-oxide gas sensor. According to one embodiment, the sensor includes a layer or pellet of tungsten trioxide (WO) substituted with one or more added metals. Preferably, the added metals are substituted in a concentration between about 0.005 and 10%, have an oxidation state less than +6, and possess a similar ionic radius to W. The substituted metal oxides are preferably formed as nanoparticles and sintered into a dense structure or coating possessing a surface-depletion layer sensitive to the surface adsorption of gas molecules and whose resistance changes in a predictable manner with gas adsorption. The extent of resistance change, rate of change and rate of desorption can be different for different gases, depending on the gas molecule's polarizability, dipole moments and electron configuration. The sensor can be used in a wide range of temperatures and corrosive conditions because of the intrinsic stability of the substituted metal oxides.
Thermal Switch Material Suitable For Use In Controlling Short Circuits In Lithium-Ion Batteries And Method Of Making The Thermal Switch Material
Robert C. McDonald - Stow MA, US Katherine E. Harrison - North Cambridge MA, US Shelly L. Van Blarcom - West Newton MA, US Shannon O'Toole - Westborough MA, US Michael P. Moeller - Waltham MA, US
International Classification:
H01M 10/50 H01M 2/00 H01B 1/22 B32B 15/08
US Classification:
429 62, 4271261, 252512, 428422, 977773, 977948
Abstract:
A composite thermal switch material suitable for use in controlling short circuits in lithium ion batteries. The switch material comprises a substantially homogeneous matrix of metallic nanoparticles and non-electrically conductive polymeric nanoparticles, the non-electrically conductive polymeric nanoparticles being fused to one another and having a greater thermal expansion coefficient than the metallic nanoparticles, the metallic nanoparticles and the non-electrically conductive polymeric nanoparticles being present in said substantially homogeneous matrix in relative proportions such that the composite thermal switch material is electrically conductive below a switching temperature and is substantially non-electrically conductive at or above the switching temperature.
Electrochemical Device Comprising An Electrically-Conductive, Selectively-Permeable Membrane
Cortney K. Mittelsteadt - Wayland MA, US Castro S.T. Laicer - Watertown MA, US Katherine E. Harrison - North Cambridge MA, US Bryn M. McPheeters - Gothenburg NE, US
An electrochemical device, such as a fuel cell or an electrolyzer. In one embodiment, the electrochemical device includes a membrane electrode assembly (MEA), an anodic gas diffusion medium in contact with the anode of the MEA, a cathodic gas diffusion medium in contact with the cathode, a first bipolar plate in contact with the anodic gas diffusion medium, and a second bipolar plate in contact with the cathodic gas diffusion medium. Each of the bipolar plates includes an electrically-conductive, non-porous, liquid-permeable, substantially gas-impermeable membrane in contact with its respective gas diffusion medium, the membrane including a solid polymer electrolyte and a non-particulate, electrically-conductive material, such as carbon nanotubes, carbon nanofibers, and/or metal nanowires. In addition, each bipolar plate also includes an electrically-conductive fluid chamber in contact with the electrically-conductive, selectively-permeable membrane and further includes a non-porous and electrically-conductive plate in contact with the fluid chamber.
Electrochemical Cell For High-Voltage Operation And Electrode Coatings For Use In The Same
Electrochemical cell for high-voltage operation and electrode coatings for the same. The electrochemical cell and electrode coatings of the present invention can preferably withstand charging voltages to at least 5-Volts. In one embodiment, the electrochemical cell can include an anode, a cathode, a separator, and an electrolyte, wherein the anode, the cathode, and the separator are operatively associated with the electrolyte. The cathode can include, for example, a mixture of a metal oxide, an elongated carbon structure, and a conductive material. The metal oxide can be, for example, a lithium-nickel-manganese oxide, such as LiNiMnO. The elongated carbon structure can be, for example, a carbon nanotube, a carbon fibril, or a carbon fiber. The conductive material can be, for example, a conductive carbon. The metal oxide, the elongated carbon structure, and the conductive material can be bound together, for example, with a binder.
Electrochemical Method For Detection And Quantification Of Organic Compounds In Water
- Newton MA, US Avni A. Argun - Newton MA, US Katherine E. Harrison - Arlington MA, US
International Classification:
G01N 33/18 G01N 27/327 G01N 27/42
Abstract:
Method and system for detection and quantification of oxidizable organics in water. The method involves the partial electrolytic decomposition of the oxidizable organics in a short time frame, preferably less than five seconds, and does not involve the use of toxic reagents. The system includes an electrochemical sensor probe that, in turn, includes a boron-doped diamond microelectrode array. The system additionally includes an electronic transducer and a computing device. The system utilizes an analysis technique to convert sensor signal to a result that can be correlated with COD or BOD values obtained by standard methods. The method and system are particularly suitable for, but not limited to, use in monitoring of water quality at wastewater treatment plants. By employing the method before and after adding aerobic microorganisms to the sample, the method may be used to distinguish biologically oxidizable organics from total oxidizable organics.
Composite Membrane Comprising Solid Electrolyte, Method Of Making Said Composite Membrane, And Electrochemical Cell Comprising Said Composite Membrane
- Newton MA, US Jarrod D. Milshtein - Cambridge MA, US Katherine Harrison - Arlington MA, US Mario Moreira - Hudson MA, US Brian Rasimick - Boston MA, US
International Classification:
H01M 10/0562 H01M 10/052 H01M 10/04 H01M 4/02
Abstract:
A composite membrane that is suitable for use in an electrochemical cell, an electrochemical cell including the composite membrane, and a method of making the composite membrane. In one embodiment, the composite membrane includes a porous support and a solid electrolyte. The porous support is a unitary structure made of a polymer that is non-conductive to ions. The porous support is shaped to include a plurality of straight-through pores. The solid electrolyte has alkali ion conductivity and preferably completely fills at least some of the pores of the porous support. A variety of techniques may be used to load the solid electrolyte into the pores. According to one technique, the solid electrolyte is melted and then poured into the pores of the porous support. Upon cooling, the electrolyte re-solidifies, forming a monolithic structure within the pores of the porous support.
Separator For Use In Electrochemical Cells And Method Of Fabrication Thereof
- Newton MA, US Mario Moreira - Hudson MA, US Katherine Harrison - Arlington MA, US
International Classification:
H01M 2/16 H01G 11/52 H01G 11/84 H01M 2/14
Abstract:
An electrochemical cell, such as a capacitor or a secondary battery, is formed with a heat-resistant separator comprising a crosslinked membrane. The heat resistant separator is formed by exposing a polymeric membrane to a suitable condition, such as electron beam irradiation, to form the cross linked separator. In certain embodiments, the heat-resistant separator can be in the form of a laminate. In other embodiments, the heat-resistant separator includes inorganic particulate additives. The separator improves both safety and electrochemical performance of electrochemical cells, including lithium-ion batteries, such as by protecting against off-normal thermal abuse conditions and internal shorts from dendrite formation. The heat-resistant separator also provides improvements in high-rate and power density performance capabilities of secondary batteries.
But still some refuse give up on her. Machynlleth is a specialplace, said Katherine Harrison, 29: "It's hard to explain tosomebody who doesn't live in this area, but it's so safe, andpeople genuinely don't lock their doors. It's a huge shock."
Lincoln City, ORPastor / Teacher at Agape Fellowship, Inc Teaching the Word of God. Ministering in God's love, encouraging others to reach their greatest potential.