Abstract:
Described herein are substrates coated with crystals having uniform crystalline morphology on the surface of the substrate. The coated substrates are useful in culturing and performing functional assays on cells such as, for example, resorption studies on bone cells. New methods for producing such coated substrates are also disclosed.
Abstract:
Disclosed is an optical fiber having a core with an alkali metal oxide dopant in an peak amount greater than about 0.002 wt. % and less than about 0.1 wt. %. The alkali metal oxide concentration varies with a radius of the optical fiber. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained. Also disclosed are several methods of making the optical fiber including the steps of forming an alkali metal oxide-doped rod, and adding additional glass to form a draw perform. Preferably, the draw preform has a final outer dimension (d2), wherein an outer dimension (dl) of the rod is less than or equal to 0.06 times the final outer dimension (d2). In a preferred embodiment, the alkali metal oxide-doped rod is inserted into the centerline hole of a preform to form an assembly.
Abstract:
An ultra-thin glass sheet is formed using a roll-to-roll glass soot deposition and sintering process. The sintering involves initially heating and sintering one or more central segments of a glass soot sheet, and progressively heating and sintering glass soot sheet segments that are located laterally or axially adjacent to previously-sintered segments such that, along respective width directions of the glass soot sheet, only a portion of the width is sintered at a given time interval during the heating. A suitable soot sheet-sintering device is shaped as a chevron having first and second legs (212) and (214) that are joined at an apex (216).
Abstract:
The present invention relates to a method and apparatus for making a silica soot particle optionally doped. Preferably the method is substantially free of the step of combusting a fuel and substantially free of the step of forming a plasma. Preferably, the apparatus is devoid of a heating element associated with both combustion and formation of a plasma. A preferred technique for at least one heating step for forming the soot particle is induction heating. In general terms, the method and apparatus for coming out the method avoid introducing water (H2, OH, H2O) into the silica particles or deposit and can be used to manufacture preforms for optical fibers.
Abstract:
A system (100) useful for electrostatic deposition of aerosol particles and methods of depositing the aerosol particles onto a substrate are disclosed. The system (100) and the method of the present invention are useful for electrostatically depositing nanoparticles produced by gas-phase synthesis, using an induction particle generator (28), onto a substrate. Direct current may be used with minimized corona leakage in the system, which would otherwise be dama in to the induction article enerator (28).
Abstract:
An apparatus (200) useful for electrostatic deposition of aerosol particles and methods of depositing the aerosol particles onto a substrate are disclosed. The apparatus (200) and the method of the present invention are useful for electrostatically depositing nanoparticles produced by gas-phase synthesis onto a substrate' where the velocity of the flow of aerosol can be controlled.
Abstract:
The present invention relates generally to an apparatus for small particle and nanoparticle synthesis. A durable particle generator capable of high temperature particle synthesis is disclosed. The particle generator is configured as to minimize susceptor degradation associated with harsh reaction conditions.
Abstract:
Disclosed is an optical fiber having a core with an alkali metal oxide dopant in an peak amount greater than about 0.002 wt. % and less than about 0.1 wt. %. The alkali metal oxide concentration varies with a radius of the optical fiber. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained. Also disclosed are several methods of making the optical fiber including the steps of forming an alkali metal oxide-doped rod, and adding additional glass to form a draw perform. Preferably, the draw preform has a final outer dimension (d2), wherein an outer dimension (dl) of the rod is less than or equal to 0.06 times the final outer dimension (d2). In a preferred embodiment, the alkali metal oxide-doped rod is inserted into the centerline hole of a preform to form an assembly.
Abstract:
A folding exercise rowing or sculling machine has left and right fold-down oar assemblies (40), each formed of an arm (42) hinged to the side of the frame, and a pivot (46) at the end of the arm on which the oar (50) and oarlock (49) are mounted. A cam plate (48) at a lower end of the pivot pulls a cable that drives the sprocket wheel (84) of a flywheel (80) mounted to the rear or proximal end of the frame. The oar assemblies fold to rearward, with the cam wheels fitting into a space (D) between the flywheel and the frame. Multiplier pulley assemblies couple the power cable and elastic cords to a drive chain that is wound around the sprocket wheel (84).
Abstract:
Systems and methods for generating nanomaterial are described wherein a reaction, for example, oxidation, for generating nanomaterial occurs in an open reaction zone which is external to the nanoparticle generator. The systems and methods minimize damage to the hot wall reactors evident in conventional systems and methods used to generate nanomaterial.