Abstract: An improved shelving unit for a shipping container is disclosed herein. The improved shelving unit can comprise one or more shelf assemblies and an RFID reader. Each of the one or more shelf assemblies can comprise a bottom platform and a top platform. The RFID reader can be mounted between the bottom platform and the top platform. The top platform can be capable of supporting items.

Abstract: A leakage current detection circuit is used for detecting a leakage current, includes a main winding, an auxiliary winding, a detection module and a signal output module used for outputting a pulse signal with pulse signals with positive and negative alternations, wherein the main winding is connected to a leakage current detection end and coupled to the auxiliary winding, and the auxiliary winding is respectively connected to the signal output module and the detection module. During the auxiliary winding in a preset state and a leckage current occurred, the leakage current coupled to the auxiliary winding is superimposed with the pulse signal, so that the current signal detected by the detection module is greater than the current signal detected when the pulse signal with pulse signals with positive and negative alternations is not applied.

Abstract: A leakage current detection circuit is used for detecting a leakage current, includes a main winding, an auxiliary winding, a detection module and a signal output module used for outputting a pulse signal with pulse signals with positive and negative alternations, wherein the main winding is connected to a leakage current detection end and coupled to the auxiliary winding, and the auxiliary winding is respectively connected to the signal output module and the detection module. During the auxiliary winding in a preset state and a leakage current occurred, the leakage current coupled to the auxiliary winding is superimposed with the pulse signal, so that the current signal detected by the detection module is greater than the current signal detected when the pulse signal with pulse signals with positive and negative alternations is not applied.

Abstract: An improved automated inventory system is herein disclosed. The improved automated system (AIS) can comprise an enclosure for storing one or more items, one or more RFID readers, and a control system. Each of the items are tagged with an RFID (radio frequency identification) tag. The enclosure can comprise a plurality of of interior surfaces that defines an interior space within said enclosure. The enclosure can also comprise one or more access points within the interior surfaces that allow access to the items within the enclosure. Each of the RFID readers can be capable of reading the RFID tag. The control system can be in communication with the one or more RFID readers.

Abstract: An improved wall panel for an automated inventory module is disclosed herein. The improved wall panel can comprise a wall panel. The wall panel can be capable of being mounted at a corrugated interior surface of an automated inventory module (AIM). The wall panel can comprise a substantially flat first exterior layer comprising a first side and a second side. The first exterior layer first side can face the interior of the AIM when the wall panel is mounted at the interior surface, and the first exterior layer second side can face the interior surface when the wall panel is mounted at the interior surface. The first exterior layer can comprise a ferromagnetic material.

Abstract: An improved shelving unit for a shipping container is disclosed herein. The improved shelving unit can comprise one or more shelf assemblies and an RFID reader. Each of the one or more shelf assemblies can comprise a bottom platform and a top platform. The RFID reader can be mounted between the bottom platform and the top platform. The top platform can be capable of supporting items.

Abstract: The disclosure provides a high-activity long-acting hypoglycemic fusion protein, which is formed by connecting, via a linker peptide or directly, a high-activity Exendin-4 mutant with an optimally mutated Fc fragment of a human immunoglobulin IgG1. The optimally mutated Fc fragment of the human immunoglobulin IgG1 comprises an optimally mutated human IgG1 hinge region and human IgG1 constant regions CH2 and CH3.

Abstract: This disclosure relates to a smart box and method of use thereof. The smart box can comprise a box, a radio-frequency identification (RFID) reader, an access control system, and a smart box control system. The box can be capable of housing a plurality of purchasable products. The RFID reader can be capable of reading a plurality of RFID tags. The smart box control system can comprise a smart box memory and a smart box processor. The smart box memory can comprise a smart box application. The smart box processor can, according to instructions from the smart box application, grant access to a buyer upon the buyer supplying an access key to the access control system, can maintain contact with each of the plurality of RFID tags within the box and can direct a purchasable product of the plurality of purchasable products to be billed to a user account.

Abstract: A system and method for managing inventory within a smart box is described. The smart box system can comprise a smart box, one or more radio-frequency identification (RFID) readers, and a smart box control system. The smart box can be capable of housing a plurality of purchasable products. Each purchasable product of the plurality of purchasable products can comprise a radio-frequency identification (RFID) tag. The smart box control system can comprise a smart box memory and a smart box processor. The smart box memory can comprise a smart box application. The smart box processor that according to instructions from the smart box application can scan all RFID tags within the smart box during a first scan using the RFID readers and can record a first record in the smart box memory of all the RFID tags sensed during the first scan.

Abstract: This disclosure relates to a system and method for providing a maintenance, repair, and operating supplies (MRO) solution for drilling rig sites. The method for providing MRO solution can comprise the step of providing a graphical user interface (GUI) to a user wherein the GUI can comprise a plurality of depictions of a rig. Each depiction of the plurality of depictions can comprise one or more clickable rig parts. Each of the clickable rig parts can be linked to a further depiction of the plurality of depictions or one of a plurality of products represented by the clickable rig parts. The method can also comprise the step of allowing a buyer to select the purchasable component of the one of a plurality of products by navigating the GUI by clicking the clickable rig parts.

Abstract: This disclosure relates to a smart box and method of use thereof. The smart box can comprise a box, a radio-frequency identification (RFID) reader, an access control system, and a smart box control system. The box can be capable of housing a plurality of purchasable products. The RFID reader can be capable of reading a plurality of RFID tags. The smart box control system can comprise a smart box memory and a smart box processor. The smart box memory can comprise a smart box application. The smart box processor can, according to instructions from the smart box application, grant access to a buyer upon the buyer supplying an access key to the access control system, can maintain contact with each of the plurality of RFID tags within the box and can direct a purchasable product of the plurality of purchasable products to be billed to a user account.

Abstract: The disclosure provides a high-activity long-acting hypoglycemic fusion protein, which is formed by connecting, via a linker peptide or directly, a high-activity Exendin-4 mutant with an optimally mutated Fc fragment of a human immunoglobulin IgG1. The optimally mutated Fc fragment of the human immunoglobulin IgG1 comprises an optimally mutated human IgG1 hinge region and human IgG1 constant regions CH2 and CH3.

Abstract: Disclosed is a current sampling circuit including a proportional current output circuit and a full differential common mode negative feedback circuit, specifically the proportional current output circuit is configured to calculate a current output from a power device according to a preset proportion to obtain a first proportional current and a second proportional current, and to output the first proportional current and the second proportional current to the full differential common mode negative feedback circuit; and the full differential common mode negative feedback circuit is configured to shunt respectively the first proportional current and the second proportional current using a full differential common mode negative feedback network with a bias current in microamps to obtain a first sampling current and a second sampling current, and to output constantly the first sampling current and the second sampling current. Further disclosed is a current sampling method.

Abstract: A drive system (10) that is operable to drive a conveyor band (12) includes a drive motor (26), inner and outer drive shafts (28, 30), a gearbox (32), and a band engagement member (34, 36). The inner drive shaft (28) includes first and second ends (38, 40), the first end (38) being connected to the drive motor (26). The gearbox (32) includes input and output portions, the input and output portions being in geared connection with one another, and the input portions being connected to the second end (40) of the inner drive shaft (28). The outer drive shaft (30) includes a cavity (46) that extends through at least a portion of the outer drive shaft (30). The outer drive shaft (30) is connected to the output portion of the gearbox (32). The band engagement member (34, 36) extends radially outward from an outer surface of the outer drive shaft (30). At least a portion of the inner drive shaft (28) is positioned within the cavity (46) of the outer drive shaft (30).

Abstract: A detection circuit for a relative error voltage, including: a first current mirror, a second current mirror, a third current mirror, a current sink and resistors R1, R2 and R3. A voltage signal to be detected V1 accesses the first current mirror via the resistor R2, and a voltage signal to be detected V2 accesses the second current mirror via the resistor R3; a mirrored-end of the first current mirror is connected to the current sink, and a mirroring-end thereof is connected to a mirrored-end of the third current mirror; a mirrored-end of the second current mirror is connected to the current sink, and a mirroring-end thereof is connected to a mirroring-end of the third current mirror; the current sink is grounded via the resistor R1; and the third current mirror converts double-ended currents of the first and the second current mirrors to single-ended currents to output as voltage signals.

Abstract: A drive system (10) that is operable to drive a conveyor band (12) includes a drive motor (26), inner and outer drive shafts (28, 30), a gearbox (32), and a band engagement member (34, 36). The inner drive shaft (28) includes first and second ends (38, 40), the first end (38) being connected to the drive motor (26). The gearbox (32) includes input and output portions, the input and output portions being in geared connection with one another, and the input portions being connected to the second end (40) of the inner drive shaft (28). The outer drive shaft (30) includes a cavity (46) that extends through at least a portion of the outer drive shaft (30). The outer drive shaft (30) is connected to the output portion of the gearbox (32). The band engagement member (34, 36) extends radially outward from an outer surface of the outer drive shaft (30). At least a portion of the inner drive shaft (28) is positioned within the cavity (46) of the outer drive shaft (30).

Abstract: A detection circuit for a relative error voltage, including: a first current mirror, a second current mirror, a third current mirror, a current sink and resistors R1, R2 and R3. A voltage signal to be detected V1 accesses the first current mirror via the resistor R2, and a voltage signal to be detected V2 accesses the second current mirror via the resistor R3; a mirrored-end of the first current mirror is connected to the current sink, and a mirroring-end thereof is connected to a mirrored-end of the third current mirror; a mirrored-end of the second current mirror is connected to the current sink, and a mirroring-end thereof is connected to a mirroring-end of the third current mirror; the current sink is grounded via the resistor R1; and the third current mirror converts double-ended currents of the first and the second current mirrors to single-ended currents to output as voltage signals.

Abstract: Disclosed is a current sampling circuit including a proportional current output circuit and a full differential common mode negative feedback circuit, specifically the proportional current output circuit is configured to calculate a current output from a power device according to a preset proportion to obtain a first proportional current and a second proportional current, and to output the first proportional current and the second proportional current to the full differential common mode negative feedback circuit; and the full differential common mode negative feedback circuit is configured to shunt respectively the first proportional current and the second proportional current using a full differential common mode negative feedback network with a bias current in microamps to obtain a first sampling current and a second sampling current, and to output constantly the first sampling current and the second sampling current. Further disclosed is a current sampling method.

Abstract: A switching mode power supply (SMPS) includes a transformer having a primary winding, a secondary winding for providing an output voltage, and an auxiliary winding. The SMPS also includes a power switch coupled to the primary winding. A first control circuit is coupled to the secondary winding, and is configured to provide a first electrical signal to the secondary winding when the output voltage of the SMPS is less than a reference voltage during a discontinuous time, whereupon a second electrical signal is induced in the auxiliary winding. A second control circuit is coupled to the auxiliary winding and the power switch. The second control circuit is configured to regulate the output of the SMPS by controlling the power switch in response to a feedback voltage signal from the auxiliary winding, and is further configured to turn on the power switch in response to the second electrical signal.