Abstract: A computer network device (such as an access point, a switch or a router) that has multiple user interfaces is described. During operation, the computer network device may execute program instructions for the user interfaces and a shared messaging module, where a given user interface includes an agent corresponding to an application. When a message associated with the application is received via a user interface in the user interfaces, the corresponding agent in the user interface may extract a command or operation from the message. Then, the shared messaging module may translate the command or operation into a common format of the application. Moreover, the shared messaging module may provide (or route) the translated command or operation addressed to the application via a single communication path associated with the application and the agents for the application in the user interfaces.

Abstract: The present disclosure provides a direct current (DC) transformer error detection apparatus for a pulsating harmonic signal, including a DC and pulsating harmonic current output module and an external detected input module, where the DC and pulsating harmonic current output module outputs a DC and a DC superimposed pulsating harmonic current to an internal sampling circuit and a self-calibrated standard resistor array; and the internal sampling circuit converts the input DC and the input DC superimposed pulsating harmonic current into a voltage signal, and sends the voltage signal to an analog-to-digital (AD) sampling and measurement component through a front-end conditioning circuit and a detected input channel. The DC transformer error detection apparatus can complete self-calibration for measurement of the DC and the pulsating harmonic signal on a test site.

Abstract: A Gifford-McMahon (GM) type double-inlet pulse tube system providing cooling at cryogenic temperatures is provided. The system has a co-axial double-inlet valve that includes a base having an adjustable port, a fixed needle partially engaged in one end of the adjustable port, an adjustable needle partially engaged in another end of said adjustable port, and a body for housing the base, the fixed needle and the adjustable needle. The base is configured to be adjustable along an axial direction. The adjustable needle is arranged co-axially with the fixed needle. The adjustable port and the adjustable needle are configured to control an alternating current (AC) flow and a direct current (DC) flow between the stem port and the end port and to produce the DC flow in either direction between the stem port and the end port.

Abstract: A computer network device (such as an access point, a switch or a router) that has multiple user interfaces is described. During operation, the computer network device may execute program instructions for the user interfaces and a shared messaging module, where a given user interface includes an agent corresponding to an application. When a message associated with the application is received via a user interface in the user interfaces, the corresponding agent in the user interface may extract a command or operation from the message. Then, the shared messaging module may translate the command or operation into a common format of the application. Moreover, the shared messaging module may provide (or route) the translated command or operation addressed to the application via a single communication path associated with the application and the agents for the application in the user interfaces.

Abstract: Techniques for implementing a provisional mode in a multi-mode network device (i.e., a network device that supports at least first and second modes of operation) are provided. According to one embodiment, the network device can receive, while running in the first mode, a request to enter the second mode. In response to the request, the network device can enter a third mode that is a provisional version of the second mode. Then, while running in the third mode, the network device can accept one or more configuration commands or settings for the second mode while simultaneously processing live network traffic according to the first mode.

Abstract: A Gifford-McMahon (GM) type double-inlet pulse tube system providing cooling at cryogenic temperatures is provided. The system has a co-axial double-inlet valve that includes a base having an adjustable port, a fixed needle partially engaged in one end of the adjustable port, an adjustable needle partially engaged in another end of said adjustable port, and a body for housing the base, the fixed needle and the adjustable needle. The base is configured to be adjustable along an axial direction. The adjustable needle is arranged co-axially with the fixed needle. The adjustable port and the adjustable needle are configured to control an alternating current (AC) flow and a direct current (DC) flow between the stem port and the end port and to produce the DC flow in either direction between the stem port and the end port.

Abstract: A double-inlet valve for a Gifford-McMahon (GM) type double-inlet pulse tube cryocooler system for providing cooling at cryogenic temperatures includes a fixed restrictor and a needle valve coupled to the fixed restrictor in parallel. The needle valve produces asymmetric flow. The combination of the fixed restrictor and the needle valve having an asymmetric flow provides improved alternating current (AC) flow characteristics and adjustability of direct current (DC) flow to increase the available cooling.

Abstract: A first-stage regenerator material and a second-stage regenerator material are regenerator materials each having a laminated structure for use in a GM refrigerator. Each layer of the regenerator material is provided with a plurality of holes to allow gas to pass therethrough along a laminating direction. At least one layer includes a base material and a coating covering the base material. Volumetric specific heat of the coating is larger than volumetric specific heat of the base material in a temperature range from 20 K to 40 K.

Abstract: Losses in the connecting line between the Pressure Wave Generator and the cold head of a GM type pulse tube refrigerator, are reduced while maintaining or improving upon the desirable features of a standard corrugated hose connecting line including vibration isolation, separation distance, and mounting convenience. The basic means are to reduce the internal void volume of the convolutions in a corrugated hose in combination with reducing the number of corrugations, adding fillers to the void volumes, and vibration absorbing coatings.

Abstract: Techniques for implementing a provisional mode in a multi-mode network device (i.e., a network device that supports at least first and second modes of operation) are provided. According to one embodiment, the network device can receive, while running in the first mode, a request to enter the second mode. In response to the request, the network device can enter a third mode that is a provisional version of the second mode. Then, while running in the third mode, the network device can accept one or more configuration commands or settings for the second mode while simultaneously processing live network traffic according to the first mode.

Abstract: Techniques for implementing a provisional mode in a multi-mode network device (i.e., a network device that supports at least first and second modes of operation) are provided. According to one embodiment, the network device can receive, while running in the first mode, a request to enter the second mode. In response to the request, the network device can enter a third mode that is a provisional version of the second mode. Then, while running in the third mode, the network device can accept one or more configuration commands or settings for the second mode while simultaneously processing live network traffic according to the first mode.

Abstract: The invention relates to ion exchangers laden with transition metal hexacyanoferrate complexes, to processes for the production thereof and to the use of these ion exchangers for removal and purification of cesium ions.

Abstract: A regenerative refrigerator includes: a regenerator unit that precools a working gas; and an expander that cools the working gas by expanding the working gas precooled by the regenerator unit. The regenerator unit includes a zinc based regenerator member formed of zinc or an alloy containing zinc as a main component of the alloy. A first stage regenerator optionally includes a high temperature part including a first regenerator member and a low temperature part including a second regenerator member different from the first regenerator member. A second stage regenerator optionally includes a high temperature part including a second regenerator member and a low temperature part including a third regenerator member different from the second regenerator member. The second regenerator member optionally includes a zinc based regenerator member formed of zinc or an alloy containing zinc as a main component of the alloy.

Abstract: The invention relates to ion exchangers laden with transition metal hexacyanoferrate complexes, to processes for the production thereof and to the use of these ion exchangers for removal and purification of cesium ions.

Abstract: A first regenerator of a regenerative refrigerator includes a first regenerator member and a first cylinder accommodating the first regenerator member. A second regenerator includes a second regenerator member and a second cylinder accommodating the second regenerator member and may be connected to a low temperature end of the first regenerator. A gas pipe guides a coolant gas discharged from the first regenerator to a portion in the middle of the second regenerator. The gas pipe may include a plurality of gas relief holes in the middle of the gas pipe.

Abstract: Techniques for implementing a provisional mode in a multi-mode network device (i.e., a network device that supports at least first and second modes of operation) are provided. According to one embodiment, the network device can receive, while running in the first mode, a request to enter the second mode. In response to the request, the network device can enter a third mode that is a provisional version of the second mode. Then, while running in the third mode, the network device can accept one or more configuration commands or settings for the second mode while simultaneously processing live network traffic according to the first mode.

Abstract: In a cryogenic refrigerator, a displacer includes a low temperature end and a high temperature end. A cylinder accommodates the displacer to be reciprocated in a longitudinal direction, and forms an expansion space which is an expansion space of a refrigerant gas between the low temperature end of the second displacer and the cylinder. The damper portion is disposed to be adjacent to the expansion space and communicates with the expansion space. A volume of the damper portion is 30% or less of a volume of the expansion space.

Abstract: In a pulse tube refrigerator, a first pulse tube has a low-temperature end, and a high-temperature end connected to a compressor. A first regenerator has a low-temperature end connected to the low-temperature end of the first pulse tube, and a high-temperature end connected to the compressor. A second pulse tube has a high-temperature end connected to the compressor, and a low-temperature end having a lower temperature than the low-temperature end of the first pulse tube. A second regenerator has a high-temperature end, and a low-temperature end connected to the low-temperature end of the second pulse tube, and is arranged side by side with the second pulse tube. The second pulse tube includes a narrowed portion nearer a low-temperature end side than a position corresponding to the high-temperature end of the second regenerator.

Abstract: In a cryogenic refrigerator, a displacer includes a cover portion at a low temperature end of the displacer. A cylinder accommodates the displacer to be reciprocated in a longitudinal direction and forms an expansion space of a refrigerant gas between the cover portion and the cylinder. A refrigerant gas channel through which the displacer and the expansion space communicate with each other is formed in the cover portion. In the refrigerant gas channel, a flowing-out direction of the refrigerant gas flowing into the expansion space is inclined with respect to the longitudinal direction of the displacer.