35results about How to "Minimizing density" patented technology

A fiber pad having a core non-woven layer is disclosed. The core layer can have an upper surface and a lower surface. The core layer can comprise at least one fiber layer. The at least one fiber layer can comprise a plurality of parallel fibers. Selected groups of the parallel fibers can be folded into desired pleated configurations. Optionally, the core layer can comprise post-consumer carpet materials.

A compound semiconductor device and method of manufacturing the same. The method includes coating a plurality of spherical balls on a substrate and selectively growing a compound semiconductor thin film on the substrate on which the spherical balls are coated. The entire process can be simplified and a high-quality compound semiconductor thin film can be grown in a short amount of time in comparison to an epitaxial lateral overgrowth (ELO) method.

Nanostructured microelectrodes and biosensing devices incorporating the same are disclosed herein.

An optoelectronic device comprising a mesa structure including:

• • a first and a second semiconductor portions forming a p-n junction,
  • a first electrode electrically connected to the first portion which is arranged between the second portion and the first electrode,
  • the device further comprising:
  • a second electrode electrically connected to the second portion,
  • an element able to ionize dopants of the first and/or second semiconductor portion through generating an electric field in the first and/or second semiconductor portion and overlaying at least one part of the side flanks of at least one part of the first and/or second semiconductor portion and of at least one part of a space charge zone formed by the first and second semiconductor portions,
  • upper faces of the first electrode and of the second electrode form a substantially planar continuous surface.

Damage to a gallium arsenide substrate during plasma ignition for PVD processing is avoided by a virtual shutter, which provides the functions without the disadvantages of a mechanical shutter to minimize the density of high energy particles created during plasma ignition from reaching the GaAs substrate. A plasma ignition process sequence uses a high pressure gas ignition gas burst in combination with the control of other parameters, such as (a) varying the plasma ignition gas composition to include xenon, krypton or fluorinated molecular gases, (b) varying target-to-substrate distance to at least double the distance during plasma ignition, (c) increasing the magnetron magnetic field strength either permanently or during plasma ignition to about 400 Gauss, (d) preconditioning the target by sputtering whenever the system has been idle for several minutes, (e) adjusting the power supply power ramping to the target over 5-6 seconds or more, and/or (f) using a simple electric circuit to drain charge build up on the GaAs substrate.

A polyurethane foam and a resin composition that may be used to form the polyurethane foam are provided. The resin composition includes a first polyol based upon ethylene diamine and having about 100% ethylene oxide capping and present in an amount of from about 0.3 to about 15 parts by weight based on 100 parts by weight of the resin composition, a second polyol, and a physical blowing agent having at least 4 carbon atoms. The polyurethane foam includes the reaction product of an isocyanate component and the resin composition comprising the first and second polyol, in the presence of the physical blowing agent. A method of forming the polyurethane foam on a substrate combines the isocyanate component and the resin composition to form a reaction mixture. The reaction mixture is applied onto the substrate to form the polyurethane foam.

A semiconductor laser diode using the aluminum gallium, arsenide, gallium indium arsenide phosphide, indium phosphide, (AlGaInAs/GaInAsP/InP) material system and related combinations is disclosed. Both the design of the active layer and the design of the optical cavity are optimized to minimize the temperature rise of the active region and to minimize the effects of elevated active layer temperature on the laser efficiency. The result is a high output power semiconductor laser for the wavelengths between 1.30 and 1.61 micrometers for the pumping of erbium doped waveguide devices or for direct use in military, medical, or commercial applications.

A shoe bed structure for sandals includes a leisure shoe made up of a bottom sole, a retaining strap, a coupling pad, and an insole wherein the bottom sole has a plurality of assembly holes properly preset at the top side thereof for the retaining strap to be fixedly engaged therewith, and a limiting cavity of a proper depth defining top surface thereon for the identically shaped coupling pad and the insole thereof to be integrally mounted therein via thermal-pressurized operation. A plurality of resilient areas with supporting hoops and a plurality of buffer areas without the supporting hoops thereof are alternatively arranged in regular or irregular manner at the upper surface of the insole thereon. The resilient supporting hoops thereof are densely and neatly arranged in upright ring shapes with air vents defined therein and dividing passages formed at the adjacent sides thereof, and an engaging underside is disposed at the bottom side of the insole. Thus, via the resilient areas and the buffer areas of any shapes, the density of contact areas between a human sole and the insole thereof is minimized, efficiently reducing the uncomfortable feeling caused by the friction generated there-between. Besides, via the air vents and the dividing passages of the supporting hoops thereof, the insole thereof is also provided with superior massage effect as well as air ventilation and water-draining capabilities.

Electrospinning apparatus and method for producing multi-dimensional structures such as one-dimensional continuous yarns, two-dimensional mats and three-dimensional cotton-like fluffy scaffolds is disclosed. Further, electrospinning apparatus and method with single collector geometry for producing multi-dimensional structures and core-sheath yarns are disclosed.

The present invention relates to both a material construction and manufacturing method resulting in low density materials, especially for use as subsea buoyancy and insulation. The products are made by an additive manufacturing process, printing thin layers of a polymer material while leaving voids of precisely predetermined shapes, sizes and distribution, with precisely predetermined thicknesses between the voids. The resulting products provide optimized strength, buoyancy and insulative value with minimal material usage and density.

Provided is a case hardening steel which allows effective inhibition of abnormal grain growth during carburizing treatment or the like and makes it possible to solve the problem of abnormal grain growth-induced reduction in characteristics. In the case hardening steel, a total amount of TiC, ZrC and AlN which are precipitate particles contained in 100 g of a steel material after subjecting the case hardening steel to hot rolling is 3.5×10⁻⁴ mole or less.

A base station interference-free antenna module includes a plurality of high frequency transceivers respectively facing different directions, and an antenna controller electrically coupled to the high frequency transceivers. The antenna controller is electrically coupled to a signal processor in order to receive a signal transmitting/receiving request output by the signal processor to accordingly select a high frequency transceiver to transmit or receive a circularly polarized high frequency signal. The system includes two WiFi base stations, each having the base station interference-free antenna module and a signal processor, and the high frequency signals wirelessly transmitted between the WiFi base stations in the system are circularly polarized.

A method of printing an image using a printing system having first and second overlapping printhead segments. The method includes the steps of: (i) identifying a strip of the image to be printed in an overlap region of the first and second printhead segments; (ii) determining a continuous seam in the strip based on a cost function, the cost function including a parameter selected from the group consisting of: (a) minimizing a density of printed ink along the seam; and (b) maximizing a luminance along the seam; and (iii) printing the image using the first and second printhead segments, the printing including stitching the first and second printhead segments across the seam. The strip contains variable image content and the seam has a varying position within the strip.

The present invention relates to a multimodal ethylene copolymer composition having a density of 920 to 949 kg/m³ and a flexural modulus, wherein said flexural modulus is following the equation: Flexural modulus [MPa]<21.35·density [kg/m3]−19585 [1]. The multimodal ethylene copolymer composition according to the invention can be used in a highly flexible cable jacket, preferably a power cable jacket.