摘要:
A lightning protection system, method and aircraft are provided for reducing the flammability of jet fuel spilled during an in-flight refueling operation between a supplying aircraft and a receiving aircraft. An inert gas is injected adjacent to a refueling interface in order to displace oxygen in the fuel-air mixture and thereby reduce the ability of the fuel vapor to ignite upon occurrence of an ignition source such as lightning. The refueling system may comprise a boom or a hose and drogue type device.
摘要:
Units of forward error correction (FEC) encoded bits each represent a one-bit data value and include correctness bits that together reflect a probability that the one-bit data value represented by the unit is correct. The units of FEC encoded bits are decoded by using the correctness bits to perform soft-decision convolution decoding on the units of FEC bits. Block code symbols that are prone to having been erroneously decoded via soft-decision convolution decoding are identified by determining whether the convolutional decoder “changes its mind” as indicated by a trellis decode path change during the convolutional decoding such that the last state of a lowest cost path after the path change does not agree with the penultimate state of a lowest cost path immediately prior to the path change. Such a path change indicates that the data input to the convolutional decoder is so corrupted so as to be substantially unlikely to be correctly decoded by the convolutional decoder. Distribution of quality of bits being below a threshold level of quality is used as an adjunct for determining if additional symbols are to be identified as likely erroneously convolutionally decoded. Cost factor during convolutional decode is also taken into account as a further adjunct for determining if additional symbols are to be identified as likely erroneously convolutionally decoded. Among the symbols produced for block decoding, symbols identified as likely erroneously convolutionally decoded are tagged for erasure during subsequent soft-decision block decoding.
摘要:
Wastewater treatment systems, methods and apparatus for polishing a wastewater stream comprising a plurality of contaminants are provided. One system includes a vessel containing a plurality of natural media filtration agents selected to remove selected ones of the plurality of contaminants from the wastewater stream. In one embodiment, the vessel includes a bed of bauxite residue and at least one other natural media filtration agent. In another embodiment, the vessel includes a bed of compost and at least one other natural media filtration agent. The vessel includes a wastewater inlet that is in fluid communication with one or more of the natural media filtration agents. The vessel includes a wastewater outlet that is in fluid communication with one or more of the natural media filtration agents.
摘要:
A line generating device generates two fan-shaped beams of light at an angle to each other, and projects the beams onto an adjacent surface, where the beams are visible as lines on the surface. A user has access to the intersection of the lines, so that the intersection can be marked or otherwise used in combination with the lines, such as in aligning objects.
摘要:
A financial transactions processing system includes a teller display screen and a customer display screen, both of which can be coupled to a teller computer. The teller computer can be operably connected to a bank computer. The teller computer provides the teller display screen with a first set of information to be displayed on the teller display screen, and supplies the customer display screen with a second set of information to be displayed on the customer display screen, such that the customer display screen and the teller display screen display different sets of information.
摘要:
The Great Grab Bar is connected to a regular top of a step ladder and when fastened it actually becomes part of the step ladder. The purpose of my invention The Great Grab Bar is that it s a very safe tool and saves time of going up and down a regular step ladder. The hooks at each end of the Great Grab Bar hold an enormos amount of weight.
摘要:
A method of forming a nodular insulation material suitable for installation in a cavity, comprising: propelling fibrous nodules at a substrate, wherein the fibrous nodules are formed from inorganic fibers, wherein the majority of the nodules have a maximum dimension of about one-half inch, and contacting the nodules while the nodules are being propelled, with a solution comprising water and a water soluble binder to produce coated nodules, wherein the coated nodules form an insulation on the substrate.
摘要:
A computer network including: at least one switch connecting at least one edge device to the remainder of the network, said at least one switch including: snooping apparatus using DHCP to monitor the signal traffic through the switch to or from the each edge device to determine, without changing the traffic signals, for each edge device, the MAC address, the IP address, and the port of the switch to which it is connected, and a dynamic table within said switch of, for each edge device, the MAC address, the IP address, and the port which it is connected, the contents of the table being provided by said snooping apparatus
摘要:
An air filtration unit for use in a work environment includes a housing disposed with an air filtration system and light source. The housing includes a handle and corner caps to prevent damage and provide stability. The air filtration system draws air into the housing, via a blower, through a first and second inlet gate, the air is at least partially filtered by a first and second filter assembly, which provide a two stage filtering, and then the at least partially filtered air is blown through an exhaust conduit back out into the work environment.