Abstract: In described examples, an integrated circuit (IC) includes a magnetic concentrator, a vertical Hall sensor, and a trace. The vertical Hall sensor is configured to detect a magnetic field oriented in a first dimension parallel to a substrate surface, and is located near the magnetic concentrator. The trace has first and second legs each oriented in a second dimension that is perpendicular to the first dimension and parallel to the substrate surface. The first leg is connected to the second leg in series between first and second ends of the trace. The first leg is located near the magnetic concentrator and so that a line perpendicular to and intersecting the substrate surface and the magnetic concentrator intersects the first leg. The second leg is located near the vertical Hall sensor.

Abstract: In described examples, an integrated circuit (IC) includes a magnetic concentrator, a vertical Hall sensor, and a trace. The vertical Hall sensor is configured to detect a magnetic field oriented in a first dimension parallel to a substrate surface, and is located near the magnetic concentrator. The trace has first and second legs each oriented in a second dimension that is perpendicular to the first dimension and parallel to the substrate surface. The first leg is connected to the second leg in series between first and second ends of the trace. The first leg is located near the magnetic concentrator and so that a line perpendicular to and intersecting the substrate surface and the magnetic concentrator intersects the first leg. The second leg is located near the vertical Hall sensor.

Abstract: The apparatus is for use with a LAN that has a backup system, an Internet connection and an associated memory storage capacity. The apparatus comprises a computer case, data storage devices and a motherboard. The computer case is adapted to receive data storage devices at least equal in capacity to the LAN. The data storage devices are mounted in the case and have capacity at least equal to that of the LAN. The motherboard has an operating system, a virtualization product, a NAS program and a firewall. The firewall is operatively interposed between the LAN and the Internet connection to protect the LAN from attack. The NAS is configured to be active only during backup operations initiated by task manager components of the virtualization to facilitate a location for the backup of a mirror copy of the data on the LAN by the backup system on the data storage.

Abstract: An infant feeding mat assembly for protecting a floor from spillage when an infant is being fed in an infant high chair includes a first mat that is positionable beneath an infant high chair. The first mat has a pair of slots to accommodate legs of the infant high chair. A second mat is coupled to the first mat such that the second mat is positioned beneath the infant high chair when the first mat is positioned beneath the infant high chair. The second mat is comprised of a fluid impermeable material to inhibit food spilled thereon from contacting a support surface. The second mat has a pair of slots therein to accommodate legs of the infant high chair.

Abstract: A tiki torch lamp filler system is a table having a top and a plurality of legs supporting the top above a surface. The top includes a plurality of holes for receiving and supporting tiki torch lamp containers with the wick opening in the tiki torch lamp container facing upward and with the table legs being of sufficient length to support the table top a distance from the surface to assure clearance between the tiki torch lamp container and the surface when the tiki torch lamp container is in a receptive hole in the table top.

Abstract: Simulation of an electronic circuit including a model of a ferroelectric capacitor. The model of the ferroelectric capacitor includes a multi-domain ferroelectric capacitor, in which each of the domains is associated with a positive and a negative coercive voltage. A probability distribution function of positive and negative coercive voltages is defined, from which a weighting function of the distribution of domains having those coercive voltages is defined. The electrical behavior of the ferroelectric capacitor is evaluated by evaluating the polarization of each of the domains, as weighted by the weighting function. A time-dependent factor can be included in the polarization expression evaluated for each domain, to include the effect of relaxation. The effects of longer-term mechanisms, such as imprint, can be modeled by deriving a probability distribution function for the domains after an accelerated stress.

Abstract: A non-quasi-static model of the programming behavior of a floating-gate metal-oxide-semiconductor (MOS) transistor. This model is based on evaluation of a body current, for example determined as a function of voltages applied to the transistor from the circuit environment. The body current is used as an input to a non-quasi-static function on which the modeled gate injection current is based. In one example, the body current is applied to a representation of a series R-C circuit beginning from a time corresponding to the onset of avalanche breakdown, with the voltage across the capacitor serving as a control voltage of a voltage-controlled current source that drives the gate injection current. Integration of the gate injection current over the time interval of the programming pulse provides an estimate of the trapped charge at the floating gate.

Abstract: Simulation of an electronic circuit including a model of a ferroelectric capacitor. The model of the ferroelectric capacitor includes a multi-domain ferroelectric capacitor, in which each of the domains is associated with a positive and a negative coercive voltage. A probability distribution function of positive and negative coercive voltages is defined, from which a weighting function of the distribution of domains having those coercive voltages is defined. The electrical behavior of the ferroelectric capacitor is evaluated by evaluating the polarization of each of the domains, as weighted by the weighting function. A time-dependent factor can be included in the polarization expression evaluated for each domain, to include the effect of relaxation. The effects of longer-term mechanisms, such as imprint, can be modeled by deriving a probability distribution function for the domains after an accelerated stress.

Abstract: A system for consolidating multiple discrete machines and applications into a single rack mounted server system. Dedicated application servers maintain the discrete machines as virtual machines accessible by thin clients through secure hardwire or wireless connections and through client management servers. The system polls the application servers to compile lists of available and active applications. The list of available applications is displayed to users via an application navigation graphical user interface. The graphical user interface presents a menu from which users can point and click to select the application they wish to access.

Abstract: A vacuum cleaner is provided having a cleaning head and a main body pivotally mounted to the cleaning head which includes a counter-balance mechanism having at least one torsion spring with a first end thereof mounted for pivotal movement about a fixed axis in either the cleaning head or the main body and a second end thereof mounted for pivotal movement about a fixed axis in the other of the cleaning head or the main body, with the at least one torsion spring having a main body portion which is free to move as the main body of the vacuum cleaner is pivoted relative to the cleaning head, the counter-balancing force of the at least one torsion spring increasing as the main body of the vacuum cleaner is pivoted from a generally vertical position to a generally horizontal position while the cleaning head remains generally horizontal.

Abstract: A vacuum cleaner height adjustment mechanism including a cleaning head having a pair of laterally spaced front wheels and a pair of laterally spaced rear wheels mounted for rotation within the cleaning head for supporting the cleaning head on a floor during vacuum cleaning operations, the front wheels being mounted to a common axle mounted in the cleaning head for pivotal movement around a fixed axis, the wheels being mounted to the axle offset from the pivotal axis of the axle, an arm extending from the axle, a shaft mounted substantially horizontally in the cleaning head for rotation about a central axis disposed in a plane perpendicular to a plane containing the axis of the axle, one end of the shaft having spiral threads thereon and an opposite end having an adjustment knob fixed thereto for manually rotating the shaft, and a guide member having internal threads matching and engaged with the spiral threads on the shaft for movement along the shaft, the guide member being coupled to the arm extending from

Abstract: A wear-resistant cast iron rocker arm or similar machine element is formed by differential pressure, countergravity casting an iron melt of low superheat into a ceramic investment shell mold maintained initially at room temperature and rapidly solidifying the melt therein to provide a wear-resistant, as-cast microstructure throughout the body of the element. The as-cast microstructure comprises a dendritic constituent of austenite or transformed austenite (e.g., pearlite) depending on alloy composition and an interdendritic carbide constituent. Interdendritic ledeburite will also be present if the austenite remains untransformed. The as-cast microstructure of the rocker arm is devoid of graphite.

Abstract: A wear-resistant cast iron rocker arm or similar machine element is formed by differential pressure, countergravity casting an iron melt of low superheat into a ceramic investment shell mold maintained initially at room temperature and rapidly solidifying the melt therein to provide a wear-resistant, as-cast microstructure throughout the body of the element. The as-cast microstructure comprises a dendritic constituent of austenite or transformed austenite (e.g., pearlite) depending on alloy composition and an interdentritic carbide constituent. Interdendritic ledeburite will also be present if the austenite remains untransformed. The as-cast microstructure of the rocker arm is devoid of graphite.

Abstract: A disc mounting and centering device, for use in a disc file employing removable, flexible rotary discs comprises guides 52 for locating a disc 40 such that a central and circular locating hole 48 in the disc 40 is approximately parallel planar and coaxial with a circular recess 12 of substantially the same diameter as the hole 48, set in the flat top of a rotating cylindrical spindle 10, a frusto conical expandable shell 20 for insertion through the hole 48 into the recess 12 having a largest, unexpanded diameter less than that of the hole 48, a lip 22 at the largest diameter end of the shell 20, of greater diameter than the hole for engaging the disc 40 with the spindle 10 as the shell 20 enters the recess, and a frusto conical expander 30 for insertion into the shell 20 firstly to expand the shell 20 until it is constrained by the recess 12 and secondly, by applying axial force in excess of that required to expand the shell 20 for pressing the lip 22 against the spindle 10, with said excess force to clamp

Abstract: An ophthalmic solution useful for the reduction of corneal edema is provided. The preparation comprises an aqueous solution of pentahydric or hexahydric alcohols in optional combination with other eye-treating ingredients. Examples of appropriate alcohols include sorbitol, inositol, and xylitol with sorbitol being especially preferred.

Abstract: An ophthalmic solution is provided for the treatment of corneal swelling and the healing of epithelial wounds. The solution is an aqueous solution of tranexamic acid which may contain optionally, other eye-treating ingredients.

Abstract: A pair of mutually-offset, selectively-engageable transducers read and write information on opposite surfaces of a flexible disk magnetic recording medium. Operative contact between each transducer and the flexible surface is established by one of an offset pair of pressure pads which ride on the opposite side of the disk from and directly aligned with the corresponding transducer. The selective engagement of each transducer with the flexible medium results from the selective activation of control devices which pull one or the other of the spring-loaded pressure pads away from the disk surface.