Abstract: A single pole antenna array architecture provides an azimuth variable beamwidth. The array includes a number of driven radiating elements that are spatially arranged having a pivoting actuator so as to provide a controlled variation of the antenna array's radiation pattern.

Abstract: The invention relates in part to a folded dipole having a dipole axis and a pair of arms which together have a profile which is concave on one side and convex on the other when viewed along the dipole axis. The dipoles may be arranged as a dipole box around a central region, typically in a generally circular or square configuration. Further elements may be placed in the dipole box or in the gaps between dipole boxes. The antenna may be a single-band antenna, or a multi-band antenna with the further elements operating in a different frequency band to the dipole boxes. The further elements may be concentric dipole boxes. The invention is particularly suited for use in a cellular base station panel antenna. A novel coaxial to microstrip transition is also described.

Abstract: A dual polarized broadband base station antenna for wireless communication systems is disclosed. The present invention employs a dual polarized boxed arrangement radiation element with high isolation between polarization channels. Plural radiating elements project outwardly from the surface of a ground plane. The antenna elements are paired dipoles.

Abstract: A flat panel direct methanol fuel cell (DMFC) includes an integrated cathode electrode sheet; a membrane electrode assembly (MEA) unit; an intermediate bonding layer; an integrated anode electrode sheet; and a fuel container. The fabrication of the integrated cathode/anode electrode sheets is compatible with printed circuit board (PCB) processes.

Abstract: A tri-column antenna array architecture, containing a plurality of active radiating elements that are spatially arranged on a modified reflector structure is disclosed. Radiating elements disposed along (P1 and P2) outlying center lines are movable and provided with compensating radio frequency feed line phase shifters so as to provide broad range of beam width angle variation of the antenna array's azimuth radiation pattern.

Abstract: A flat panel direct methanol fuel cell (DMFC) includes an integrated cathode electrode plate, a set of membrane electrode assemblies, an intermediate bonding layer, an integrated anode electrode plate, and a fuel container base. The integrated cathode/anode electrode plates are conducive to mass production, and are manufactured by using PCB compatible processes.

Abstract: A structure of a fuel cell stack is disclosed in the present invention, comprising: a first cathode plate; a first fuel cell module; an anode channel plate; a second fuel cell module; and a second cathode plate stacked from top to bottom. Each of the fuel cell modules respectively includes: a cathode collector sheet; at least more than one membrane electrode assembly; an adhesive strip having at least one receiving space for respectively receiving the membrane electrode assemblies; a positioning plate having at least more than one receiving space; at least more than one collector sheet being respectively disposed in the receiving space of the positioning plate.

Abstract: An antenna system for wireless networks having a dual stagger antenna array architecture is disclosed. The antenna array contains a number of driven radiator elements that are spatially arranged in two vertically aligned groups each having pivoting actuators so as to provide a controlled variation of the antenna array's azimuth radiation pattern.

Abstract: A variably controlled stagger antenna array architecture is disclosed. The array employs a plurality of driven radiating elements that are spatially arranged having each radiating element or element groups orthogonally movable relative to a main vertical axis. This provides a controlled variation of the antenna array's azimuth radiation pattern without excessive side lobe radiation over full range of settings.

Abstract: The operation of a semiconductor fabrication facility may be automated to enable efficient assignments of lots to specific process tools or entities. This may involve the use of an algorithm which may have aspects which are common across various process areas within the fabrication facility. However, the algorithm may be customized to meet the needs of specific process areas.

Abstract: An antenna adapted for wireless networks and having a variably controlled stagger antenna array architecture is disclosed. The antenna array contains a plurality of driven radiating elements that are spatially arranged having each radiating element or element groups orthogonally movable relative to a main vertical axis so as to provide a controlled variation of the antenna array's azimuth radiation pattern.

Abstract: A single pole antenna array architecture provides an azimuth variable beamwidth. The array includes a number of driven radiating elements that are spatially arranged having a pivoting actuator so as to provide a controlled variation of the antenna array's radiation pattern.

Abstract: A fuel cell device with a compound power supply is disclosed, which comprises a bipolar fuel cell board and an auxiliary power supply. The bipolar fuel cell board includes at least one fuel cell unit. The auxiliary power supply is disposed on the bipolar fuel cell board and/or on an intermediate substrate sandwiched within the fuel cell device, and is connected to the fuel cell units. Stable power is output due to the combination of power from the fuel cell units and the auxiliary power supply.

Abstract: A concentration detector is adapted to detect the concentration of a liquid fuel in a container. The concentration detector comprises a rotating mechanism positioned underneath the level of the liquid fuel and having a rotational center. A first float having a specific gravity less than the specific gravity of the liquid fuel, a volume equivalent to “V” and a mass equivalent to “M”. The distance between the mass center of the first float and the rotational center is “L”. A second float connected with the first float and having a specific gravity less than the specific gravity of the liquid fuel, a volume equivalent to “V” and a mass equivalent to “r*M”. The distance between the mass center of the second float and the rotational center is “L. The mass center of the second float, the rotational center and the mass center of the first float constitute an included angle of 120°.

Abstract: A concentration detector is disclosed, which is adapted to detect a concentration of a liquid fuel in a container. The concentration detector includes a rotating means positioned underneath a level of a liquid fuel and rotatable at an angle ? on a X-Y plane. The rotating means includes at least three floating objects connected with each other. Each floating object has a specific gravity less than a specific gravity of the liquid fuel ?. The floating objects are balanced according to a torque equation, F(?,?)=0, such that the rotating means is still under the level of the liquid fuel. While a concentration of the liquid fuel is changed and the angle ? of the rotating means is detected, the specific gravity of the liquid fuel ? is obtained from the torque equation, F(?,?)=0, and thereby computing the concentration of the liquid fuel.

Abstract: A shoe has a sole, an upper and a counter portion. The upper is securely connected to the sole and has a rear end defined with an opening. The counter portion is pivotally connected to a rear end of the sole to close the opening in the upper. A fastener is mounted on the upper and the pivotal counter portion to connect the pivotal counter portion to the rear end of the upper. Accordingly, a wearer's foot in the shoe can be vented. Also, for a pair of tied shoes with the pivotal counter portions can be put on or taken off without tying or untying the laces. The use of the shoe becomes more versatile and more convenient.

Abstract: The invention relates in part to a folded dipole having a dipole axis and a pair of arms which together have a profile which is concave on one side and convex on the other when viewed along the dipole axis. The dipoles may be arranged as a dipole box around a central region, typically in a generally circular or square configuration. Further elements may be placed in the dipole box or in the gaps between dipole boxes. The antenna may be a single-band antenna, or a multi-band antenna with the further elements operating in a different frequency band to the dipole boxes. The further elements may be concentric dipole boxes. The invention is particularly suited for use in a cellular base station panel antenna. A novel coaxial to microstrip transition is also described.

Abstract: The present invention provides a fuel cell device, which at least comprises: at least one membrane electrode assembly, at least one fuel flow board, and at least one permeability membrane; wherein, the membrane electrode assembly is provided with an anode electrode, a cathode electrode, and an electrolyte membrane; and, the permeability membrane is configured between the membrane electrode assembly and the fuel flow board, so that the liquid fuel flowing into the fuel flow board could permeate into the permeability membrane, and reducing the density of liquid fuel permeating from the permeability membrane; and, the liquid fuel permeating from the permeability membrane is the liquid fuel with lower density, and is supplied to the anode electrode of the membrane electrode assembly for electrochemical reaction.

Abstract: A spring toggle includes an outer wing, an inner wing, a spring and a bolt. The outer and inner wings each include a limb, a clipping flange and two sidewalls. The limb has a proximal end, a distal end and two edges. The clipping flange is formed on the proximal end of the limb. The sidewalls are formed respectively on the edges of the limb. The spring is mounted in the inner and outer wings. The bolt is inserted through the spring, extends between the clipping flanges of the inner and outer wings and has an outer thread. The outer thread of the bolt is clipped by the clipping flanges when the inner and outer wings are expanded by the spring.

Abstract: A binder-free metal oxide dispersion with a content of metal oxide of greater than 15 wt. %, wherein the metal oxide powder in the dispersion has a number-average aggregate diameter of less than 200 nm and the dispersion comprises as the liquid phase a mixture of water and a water-miscible, organic solvent. Coated substrates and mouldings produced with the metal oxide dispersion.