Abstract: The present disclosure relates to an expanded foam solution for forming a thermosetting expanded foam having excellent flame retardancy produced using the same. According to the present disclosure, nanoclay is mixed with a polyol-based compound using ultrasonic waves, an isocyanate-based compound is added, and a trimerization catalyst or an isocyanurate compound is mixed with the polyol-based compound so that an isocyanurate structure is formed.

Abstract: An assignment control apparatus includes an assignment device connected to multiple cameras and multiple specialized devices connected to the assignment device and each corresponding to one of preset multiple categories. The assignment device includes multiple determination units connected to the cameras one-to-one and each configured to determine the category of image data received from the camera to which the determination unit is connected, the category being one of the categories, and to output the image data along with category data indicating the determined category. The assignment device also includes an assignment unit configured to output the image data outputted from each specialized device to the specialized device corresponding to the category indicated by the category data outputted along with the image data.

Abstract: A proof of time (PoT) protocol implemented on a network of nodes to add a block to a timechain is provided. In order to participate in the consensus process, the nodes in the network have to stake a predefined number of tokens with the network. Further, the nodes have to register their participation keys with the network. Thereafter, the nodes of the network are classified into time nodes and time electors. Determination of the nodes which will serve as the time nodes and which will serve as the time electors is done by running a verifiable delay function (VDF) based on a ranking score and fixed stake of each node. The block is added to the timechain in a period called a slot. The network releases a random number called a seed that each node uses to compute VDF based on its ranking score and the fixed stake.

Abstract: Proposed are an organic-inorganic composite synthetic resin using a highly flame-retardant organically modified nanoparticle, and a production method thereof. The method for producing the organic-inorganic composite synthetic resin using a highly flame-retardant organically modified nanoparticle a includes the steps of: adding and stirring metal ion-based phosphinate, melamine cyanurate, and nanoclay to a container containing an aqueous or oily solvent, applying ultrasonic waves and high pressure energy to the stirred solution to prepare a highly flame-retardant organically modified silicate solution through a chemical bonding, and then adding a synthetic resin to form synthetic leather and foam used as life consumer goods to the silicate solution, processing and drying it.

Abstract: Proposed are an organic-inorganic composite synthetic resin using a highly flame-retardant organically modified nanoparticle, and a production method thereof. The method for producing the organic-inorganic composite synthetic resin using a highly flame-retardant organically modified nanoparticle includes the steps of: adding and stirring metal ion-based phosphinate, melamine cyanurate, and nanoclay to a container containing an aqueous or oily solvent, applying ultrasonic waves and high pressure energy to the stirred solution to prepare a highly flame-retardant organically modified silicate solution through a chemical bonding, and then adding a synthetic resin to form synthetic leather and foam used as life consumer goods to the silicate solution, processing and drying it.

Abstract: An assignment control apparatus includes an assignment device connected to multiple cameras and multiple specialized devices connected to the assignment device and each corresponding to one of preset multiple categories. The assignment device includes multiple determination units connected to the cameras one-to-one and each configured to determine the category of image data received from the camera to which the determination unit is connected, the category being one of the categories, and to output the image data along with category data indicating the determined category. The assignment device also includes an assignment unit configured to output the image data outputted from each specialized device to the specialized device corresponding to the category indicated by the category data outputted along with the image data.

Abstract: According to one embodiment, a sound absorbing urethane foam is provided. In the sound absorbing urethane foam, a normal incidence sound absorbing coefficient at a time when a diameter is 29 mm and a thickness is 10 mm is 40% or more in an entire range of frequencies of 1000 Hz to 3150 Hz.

Abstract: A system and method provide content review, distribution, ranking and access and automate creation and performance of contests among sets of content-based contestants. The system and method provide customizable interactive, ongoing, multi-level, multi-round contests with expert review of and filtered submission of content-based contestants. Among other advantages, providers may use the system and method to obtain expert and consumer review and ranking of their content.

Abstract: Novel and advantageous portable pitching lanes for softball are disclosed. In one embodiment, a pitching lane for softball is disclosed comprising a foundation layer, a surface layer, and a pitching rubber. The portable pitching lane is movable from place to place when not in use, but does not move when in use.

Abstract: A home network system using a Z-Wave network includes a wired/wireless Z-Wave bridge having a Z-Wave communication unit to which a plurality of home automation devices are accessed through the Z-Wave network and an Ethernet communication unit which is accessed to a main server through the Internet, and a main server providing an application for a remote control of the home automation device, and performing MAC authentication to allow access to the wired/wireless Z-Wave bridge upon request by the portable terminal, in which the MAC authenticated portable terminal of the wired/wireless Z-Wave bridge is accessed to the home automation devices to perform remote control.

Abstract: A joint structure for steel pipes according to the invention includes a pair of steel pipes having male threads formed at end portions thereof, and a coupling having a pair of sets of female threads formed therein so that the male threads of the pair of steel pipes screw in the pair of the sets of female threads, respectively. Distal end surfaces at the end portions of the steel pipes have inner circumferential edges each protruding in a direction of a pipe axis with respect to outer circumferential edges thereof. When the pair of steel pipes are coupled to each other by the coupling and the inner circumferential edges of the distal end surfaces of the pair of steel pipes are brought into contact with each other, a gap is formed between the outer circumferential edges of the distal end surfaces of the pair of steel pipes.

Abstract: Methods, devices, and systems are provided herein related to a connection management server connected to a signaling server, a push server, at least one home device, and at least two smart devices. The connection management server includes a connection management request receiver for receiving a video call connection request or a user switching request. A connection management request transmitter is also included for transmitting a connection state releasing request to the home device and the first smart device, for transmitting a video call push notification transmission request to the push server upon the video call connection request, and for transmitting a user switching push notification transmission request to the push server upon the user switching request. A group manager is also included for managing, in a group, smart device identity corresponding to a push notification sent from the push server.

Abstract: This invention relates to a lead-free solder alloy composition and a method of preparing a lead-free solder alloy, wherein the lead-free solder alloy composition includes a ceramic powder added to a lead-free solder of Sn-(0.1 to 2) wt % Cu, Sn-(0.5 to 5) wt % Ag, or Sn-(0.1 to 2) wt % Cu-(0.5 to 5) wt % Ag. According to this invention, a novel lead-free solder alloy, which functions as a replacement for a conventional lead-free solder, is provided, thus exhibiting superior spreadability, wettability, and mechanical properties than a conventional lead-free solder.

Abstract: A hydrogen gas dryer or system for drying or removing water from hydrogen gas for use in hydrogen-cooled generators includes a drying tower or column comprising a housing, a heater, a desiccant, and a controller. The system is configurable and operable for regeneration of the saturated column, with activation of the heater to cause water retained in the saturated desiccant to turn into steam such as steam and exit on its own via the vent. A supply of generally dry hydrogen is used to purge the remaining vaporized water from the isolated substantially dry regenerated desiccant.

Abstract: A hydrogen gas dryer or system for drying or removing water from hydrogen gas for use in hydrogen-cooled generators includes a drying tower or column comprising a housing, a heater, a desiccant, and a controller. The system is configurable and operable for regeneration of the saturated column, with activation of the heater to cause water retained in the saturated desiccant to turn into steam such as steam and exit on its own via the vent. A supply of generally dry hydrogen is used to purge the remaining vaporized water from the isolated substantially dry regenerated desiccant.