摘要:
A heat transfer process focused for heat transfer with a potentially scaling, fouling, solids laden or otherwise aggressive fluid employing direct thermal contact between said fluid and an immiscible, phase shifting working media wherein said phase shifting proffers the employ of the latent heat of vaporization for protraction of the heat transfer process. Wherein further said phase shifts modify the working media density therein motivating the immiscible, direct contact fluid dynamics.
摘要:
A door security assembly for blockading a door in a lockdown situation includes a blockade device. An element of the blockade device insertable into a gap defined by a door and a crash bar that is engaged to the door. Each of a pair of fasteners engaged to the blockade device is selectively engageable the crash bar, so that the blockade device is reversibly engaged to the crash bar with the element positioned in the gap. The blockade device prevents actuation of the crash bar so that the door cannot be opened. The fasteners are positioned so that two hands are required to simultaneously disengage the fasteners from the crash bar to enable disengagement of the blockade device from the crash bar.
摘要:
A heat transfer process focused for heating or cooling an aggressive liquid employing direct contact through an immiscible fluid film of differing density. The fluid film adheres to a solid wall heat transfer surface purveying both transference of heat therein as well as isolation protection of the heat transfer surface from damage, coating or scaling from the adjacent aggressive liquid.
摘要:
A computer-implemented method for controlling access to digital media involves receiving a URL at a computer server system, decoding the URL, extracting a user ID of a user who submitted the URL and an image ID of an image that is accessible by the server system, using the user ID to determine whether the user who submitted the URL is authorized to access the image, and controlling access to the image by the user based on the determination of whether the user who submitted the URL is authorized to access the image.
摘要:
Disclosed is a membrane filtration device and process affording high velocity cross flow membrane purging via cyclonic spiraling flow; hydraulically induced about stacked plate type membrane configurations. No piping, conduits or other flow impediments are enclosed to generate streamline or shadow depositions, and periodic reversals of cyclonic flow for enhanced membrane scouring and flushing may be employed.
摘要:
A first request that the user device render a first text in a default font is transmitted to a user device, and a second request that the user device render a second text in the desired font is transmitted to the user device. Data pertaining to the desired font is provided to the user device, if a first dimension of the first text is the same as a second dimension of the second text. For example, the data may comprise a request that the user device download the desired font from a specified source. The first dimension may be a width of the first text and the second dimension may be a width of the second text, for example.
摘要:
A filtration appliance comprised of two types of convening disks, whereon opposing, contacting surfaces are textured or channeled, purveying passage and filtration of fluids traversing between the convening disks. A plurality of parallel, spiraling grooves on both sides of conveyance disks purvey channeling for fluid ingress and egress, inlet grooves spiral radially inward from the outside circumference, decreasing in width until terminating prior to the inside circumference, outlet grooves spiral radially outward from the inside circumference, decreasing in width until terminating prior to the outside circumference. Topologic disks conveying homogeneously textured surfaces for filtration sandwich conveyance disks. The textured topologic surface is pressed upon the conveyance surface between the grooves. Pressured dirty fluid ingresses the appliance via the conveyance disk inlet grooves, passes across the textured surface of the topologic disk surface, depositing residue thereon and egresses as clean fluid via the conveyance disk outlet grooves.
摘要:
A computer-implemented method for controlling access to digital media involves receiving a URL at a computer server system, decoding the URL, extracting a user ID of a user who submitted the URL and an image ID of an image that is accessible by the server system, using the user ID to determine whether the user who submitted the URL is authorized to access the image, and controlling access to the image by the user based on the determination of whether the user who submitted the URL is authorized to access the image.
摘要:
A system for driving a torsion based on frequency, amplitude and offset control signals includes a pulse width modulator subsystem configured to generate output pulses having controlled pulse durations alternately to each of two channels, the output pulses encoding the frequency, amplitude and offset control signals. A driver circuit is configured for driving the torsion oscillator with a voltage of one polarity during a pulse output to the one of the channels, and a voltage of opposite polarity during a pulse output to the other of the channels.
摘要:
An automatic skin biopsy device that includes a drive unit and a variety of shapes and sizes of disposable cartridges. The device is capable of automatic extraction of a small and precisely located portion of skin having a shape similar to a wide canoe. A disposable cartridge is mounted onto and driven by the drive unit which incorporates at least one gear motor. In a preferred embodiment the gear motor in the drive unit drives, via gears and cams, two cutter blades in the disposable cartridge through separate curved paths to extract from the skin the generally wide canoe-shaped skin sample. Preferably another gear motor via gear and cam action produces back and forth oscillation of the blades to assure easy slicing of the skin tissue. The canoe-shape incision that is about 1 to 4 mm deep produces a good biopsy sample and the incision is easily closed with a medical staple or sutures. In preferred embodiments a stapler is provided as a part of the sample acquisition device. Materials used to fabricate the driver and the cartridge preferably transparent to permit accurate placement of the incision.