Abstract: A method of training an artificial intelligence model includes obtaining a target matrix, obtaining a library matrix including a library of candidate model terms associated with a plurality of candidate models, and generating, based on the target matrix and the library matrix, a coefficient matrix including estimated model coefficients. The coefficient matrix is pruned based on a pruning matrix of coefficient pruning thresholds to generate at least one sparsified coefficient matrix. One or more of the at least one sparsified coefficient matrix is selected as a candidate to be used by the artificial intelligence model in predicting behavior of a physical system.

Abstract: A countertop system includes a first slab having a first lateral slot that is laterally obscured by a first cover, and a second slab having a second lateral slot that is laterally obscured by a second cover. The first and second covers are configured to be removed with an application of pressure, and the first slot aligns with the second slot to receive a connector to couple the first slab to the second slab.

Abstract: Described are microfluidic high-throughput single cell transwell systems for culturing single paired cells for real time monitoring of exosomes biogenesis, transportation and internalization between paired single cells.

Abstract: A countertop system includes a first slab having a first lateral slot that is laterally obscured by a first cover, and a second slab having a second lateral slot that is laterally obscured by a second cover. The first and second covers are configured to be removed with an application of pressure, and the first slot aligns with the second slot to receive a connector to couple the first slab to the second slab.

Abstract: A countertop system includes a first slab having a first lateral slot that is laterally obscured by a first cover, and a second slab having a second lateral slot that is laterally obscured by a second cover. The first and second covers are configured to be removed with an application of pressure, and the first slot aligns with the second slot to receive a connector to couple the first slab to the second slab.

Abstract: A variable-pitch vertical axis wind turbine comprises a hub supported for rotation about a central axis and a blade pivotally mounted to the hub so as to permit relative rotation between the blade and the hub. The blade and the hub define a pitch angle therebetween. The wind turbine comprises a mechanism configured to produce reciprocating motion during rotation of the hub about the central axis. The wind turbine comprises a linkage configured to transfer the reciprocating motion produced by the mechanism to the blade so as to vary the pitch angle.

Abstract: A System and method of orchestrating failover operations of servers providing services to an internal computer network includes a DR server configured to execute a control script that performs a failover operation. Information needed to perform the failover operation is stored on the DR server thereby eliminating the need to store agents on each of the application's primary and backup servers. The DR server may provide a centralized location for the maintenance an update of the failover procedures for the internal network's redundant services. A failover operation may be initiated by an authorized user in communication with the internal computer network.

Abstract: A system and method of orchestrating failover operations of servers providing services to an internal computer network includes a DR server configured to execute a control script that performs a failover operation. Information needed to perform the failover operation is stored on the DR server thereby eliminating the need to store agents on each of the application's primary and backup servers. The DR server may provide a centralized location for the maintenance and update of the failover procedures for the internal network's redundant services. A failover operation may be initiated by an authorized user in communication with the internal computer network.

Abstract: Currently data transmission over the Internet between two client computers where both client computers are protected by firewalls is problematic, since firewalls block incoming packets. A method is provided for permitting packet based data transmission between a first client computer C1 protected by a first NAPT or NAT firewall and a second client computer C2 protected by a second NAPT or NAT firewall to traverse the first and the second firewalls. The method can also be applied to other devices, such as routers, using NAT or NAPT.

Abstract: A system for managing access to folders of an email account so that some folders can be viewed by Internet users other than the email account owner One way of access is simply by typing an Internet address in an Internet browser Contents can also be posted by any Internet user to those publicly accessible folders. One way of posting is simply by sending an email addressed to that folder A voice message management system manages multiple voice message boxes for each subscriber for later retrieval such as one main incoming message box and an advertisement voice message box for storing targeted advertising messages. The incoming voice messages are routed to their respective boxes based on their type, preferably without ringing the user's telephone at the time of delivery. An email and voice message management system for monitoring and managing respective inboxes, folders or boxes of multiple email and voice communication accounts.

Abstract: Currently data transmission over the Internet between two client computers where both client computers are protected by firewalls is problematic, since firewalls block incoming packets. A method is provided for identifying the firewalls protecting a first client computer C1 protected by a first NAPT or NAT firewall and a second client computer C2 protected by a second NAPT or NAT firewall and allowing communications between the computers to traverse the first and the second firewalls.

Abstract: A system and method of orchestrating failover operations of servers providing services to an internal computer network includes a DR server configured to execute a control script that performs a failover operation. Information needed to perform the failover operation is stored on the DR server thereby eliminating the need to store agents on each of the application's primary and backup servers. The DR server may provide a centralized location for the maintenance and update of the failover procedures for the internal network's redundant services. A failover operation may be initiated by an authorized user in communication with the internal computer network.

Abstract: A system for managing access to folders of an email account so that some folders can be viewed by Internet users other than the email account owner. One way of access is simply by typing an Internet address in an Internet browser. Contents can also be posted by any Internet user to those publicly accessible folders. One way of posting is simply by sending an email addressed to that folder. A voice message management system manages multiple voice message boxes for each subscriber for later retrieval such as one main incoming message box and an advertisement voice message box for storing targeted advertising messages. The incoming voice messages are routed to their respective boxes based on their type, preferably without ringing the user's telephone at the time of delivery. An email and voice message management system for monitoring and managing respective inboxes, folders or boxes of above mentioned email and voice communication accounts.

Abstract: Currently data transmission over the Internet between two client computers where both client computers are protected by firewalls is problematic, since firewalls block incoming packets. A method is provided for identifying the firewalls protecting a first client computer C1 protected by a first NAPT or NAT firewall and a second client computer C2 protected by a second NAPT or NAT firewall and allowing communications between the computers to traverse the first and the second firewalls.

Abstract: Currently data transmission over the Internet between two client computers where both client computers are protected by firewalls is problematic, since firewalls block incoming packets. A method is provided for permitting packet based data transmission between a first client computer C1 protected by a first NAPT or NAT firewall and a second client computer C2 protected by a second NAPT or NAT firewall to traverse the first and the second firewalls. The method can also be applied to other devices, such as routers, using NAT or NAPT.

Abstract: A flash memory array having multiple dual bit memory cells divided into section attached to a wordline and a pair of reference cells logically associated with each section. A method of reprogramming a section or sections of words that are required to be changed includes inputting allowed changes to the flash memory array, reading word or words to be changed in each section, programming bits in word or words to be changed in each section, refreshing previously programmed bits in the word or words that are changed, refreshing previously programmed bits in the word or words changed in each section, refreshing previously programmed bits in the remaining word or words in each section and refreshing previously programmed in each pair of reference cells in the section in which changes have been made.

Abstract: A flash memory array having multiple dual bit memory cells divided into section attached to a wordline and a pair of reference cells logically associated with each section. A method of reprogramming a section or sections of words that are required to be changed includes inputting allowed changes to the flash memory array, reading word or words to be changed in each section, programming bits in word or words to be changed in each section, refreshing previously programmed bits in the word or words that are changed, refreshing previously programmed bits in the word or words changed in each section, refreshing previously programmed bits in the remaining word or words in each section and refreshing previously programmed in each pair of reference cells in the section in which changes have been made.

Abstract: A method is provided for selecting a group of memory blocks in a flash memory device given their starting and ending addresses. The method compares the two addresses to determine the multi-block first bit location which is the most significant bit location where the starting and ending addresses have different bits. The method then generates a converted memory block address where bits more significant than the multi-block first bit location are the ending address bits and where bits less significant than, or equal in significance to, the multi-block first bit location are equal to a logic 1. The method also generates a converted complementary memory block address identical to the other converted address except that bits in the bit locations more significant than the multi-block first bit location are the complements of the ending address bits.

Abstract: Two NMOS boost transistors have their sources connected to the high voltage input while their drains and gates are cross-connected. Two coupling capacitors connect two alternate phase clocks to the gates of the two cross-connected boost transistors. An NMOS pass transistor has its gate connected to the drain of one of the NMOS boost transistors, its source connected to the high voltage input, and its drain connected to the output. In an embodiment, two diode-connected regulation transistors connect the gates of the boost transistors to the high voltage input. These connections insure that the gates of the boost transistors and the gate of the pass transistor never reach voltages higher than one threshold voltage above the high voltage input. In another embodiment, two discharge transistors have their drains connected to a decode input, their sources connected to the gates of the boost transistors, and their gates connected to the positive power supply.

Abstract: A system and method for providing a constant electric field that is insensitive to fluctuations in the power supply to a FLASH EPROM during erasure. The system comprises a plurality of sector source drivers and a power supply insensitive constant current source. Each sector has at least one binary storage element. Each storage element has a source. The sector source drivers couple the at least one source of a sector to be erased to the power supply insensitive constant current source. The power supply insensitive constant current source provides an electric field across the tunneling oxide which is constant and insensitive to fluctuations in the power supply. This improves the wear characteristics and lifetime of the binary storage elements. In addition, this system remedies problems associated with short channel effects, electron trapping, and the use of various voltage sources.