Abstract: A packet receiving system includes a transmitter device, a receiver device, and a communication device. The transmitter device is configured to transmit a plurality of packets periodically according to a packet gap. The receiver device performs a receiving operation for the packets in a plurality of first working time intervals. A sum of lengths of the first working time intervals corresponds to a length of the packet gap. The communication device performs a receiving operation or a transmitting operation in a plurality of second working time intervals. A length of each of the second working time intervals corresponds to the length of the packet gap. Each of the second working time intervals is arranged in between two of the first working time intervals.

Abstract: Recharging of battery backup units in a power supply system employs sequences of charging cycles segments and non-charging segments to reduce the additional power draw induced by recharging of the battery backup units. A method of operating a power supply system includes independently controlling recharging of battery backup units by using respective sequences first BBU charging segments and first BBU non-charging segments so that at least one of the charging segments for one of the battery backup units overlaps one of the non-charging segments of another of the battery backup units.

Abstract: Selective validation of subgroups of users against group rule parameters is performed to validate group rule parameters for a dynamic group rule. An administrator defines the group rule parameters and selects individual user accounts which are either expected to be included within and/or excluded from a full membership list for the dynamic group rule. For example, the administrator may select first user accounts that are expected to be included within the full membership list and/or second user accounts that are expected to be excluded from the full membership list. Then, a subgroup validation report is generated to inform the administrator whether or not individual user accounts from the subgroup of user accounts satisfy the group rule parameters and, therefore, will be included within the full membership list of the dynamic group rule. The subgroup validation report reveals the efficacy of the group rule parameters.

Abstract: The disclosure provides a method for sampling groundwater. The method includes extracting groundwater from a monitoring well in a first flow rate; monitoring groundwater level in real-time, and calculating a decrease of the groundwater level during the extracting in the first flow rate based on the real-time monitored groundwater level; when the decrease of the groundwater level is equal to a first value, extracting groundwater from the monitoring well in a second flow rate, the second flow rate being smaller than the first flow rate; and when the groundwater level is in an equilibration state, extracting groundwater from the monitoring well and using the extracted groundwater at this time as a representative groundwater.

Abstract: The disclosure discloses a method for preparing a permanent magnet material. In this method, an ionic liquid electroplating process is used to electroplate a heavy rare earth metal onto a surface of a sintered magnet to form a magnet with a coating, wherein the sintered magnet has a thickness of 10 mm or less in at least one direction; in the ionic liquid electroplating process, an electroplating solution comprises an ionic liquid, a heavy rare earth salt, a group VIII metal salt, an alkali metal salt and an additive, an anode is a heavy rare earth metal or a heavy rare earth alloy, a cathode is the sintered magnet, an electroplating temperature is 20-50° C., an electroplating time is 15-80 min. The preparation method of the disclosure can improve an intrinsic coercive force of the magnet with low cost and high production efficiency. A utilization rate of heavy rare earth is high.

Abstract: Disclosed is a sintered body, a sintered permanent magnet and preparation methods. The sintered body comprises Nd2Fe14B crystal phase as a primary phase and a rare earth rich phase as a grain boundary phase and has a composition expressed by composition formula RaBbGacCudAleMfCogFebalance; R is one or more selected from rare earth elements, and R must comprise Nd; M is one or more selected from the group consisting of Zr, Ti, and Nb; a satisfies 13%?a?15.3%; b satisfies 5.4%?b?5.8%; c satisfies 0.05%?c?0.25%; d satisfies 0.08%?d?0.3%; e satisfies 0?e?1.2%; f satisfies 0.08%?f?0.2%; g satisfies 0.8%?g?2.5%; grains in Nd2Fe14B crystal phase have average size L of 4-8 ?m, grain boundary phases have average thickness t with unit of ?m; the relation of t and L is: ?=t/L; and ? is defined as 0.009???0.012. The present disclosure improves diffusion efficiency of heavy rare earth elements RH.

Abstract: The present invention provides a rare earth permanent magnet material and manufacturing method thereof. The manufacturing method of the present invention comprises a multi-arc ion plating step and a infiltrating step, wherein multi-arc ion plating process is adopted to deposit a metal containing a heavy rare earth element on a surface of a sintered neodymium-iron-boron magnet which has a thickness of 10 mm or less in at least one direction; and then heat treatment is performed on the sintered neodymium-iron-boron after deposition. The sum of an intrinsic coercive force (Hcj, in unit of kOe) and a maximum magnetic energy product ((BH)max, in unit of MGOe) of the permanent magnet material of the present invention is 66.8 or more. Moreover, the manufacturing method of the present invention has high production efficiency and does not increase harmful substances, and the price of devices is relatively low.

Abstract: Fluidic devices and methods involving incubation and/or mixing of assay components are provided. In some embodiments, a biological and/or chemical assay may be performed in a fluidic device. The fluidic device may be designed to allow for controlled incubation and/or mixing of two or more assay components. In some such embodiments, the fluidic device may comprise an incubation channel having a relatively large cross-sectional dimension in fluid communication with a detection channel. The incubation channel may allow for adequate mixing and/or incubation of two or more assay components prior to analysis of the assay. In some embodiments, fluidic devices for performing a vitamin D assay are provided.

Abstract: A reinforcing fabric includes at least one glass fiber, wherein the at least one glass fiber includes a binder, the binder including a polymer resin and a filler, the filler including a recycled asphalt shingle. A method of reinforcing pavement with the aforementioned reinforcing fabric can be applied to new and existing pavements.

Abstract: The disclosure provides a method for sampling groundwater. The method includes extracting groundwater from a monitoring well in a first flow rate; monitoring groundwater level in real-time, and calculating a decrease of the groundwater level during the extracting in the first flow rate based on the real-time monitored groundwater level; when the decrease of the groundwater level is equal to a first value, extracting groundwater from the monitoring well in a second flow rate, the second flow rate being smaller than the first flow rate; and when the groundwater level is in an equilibration state, extracting groundwater from the monitoring well and using the extracted groundwater at this time as a representative groundwater.

Abstract: The present invention provides a samarium-cobalt magnet and a method for preparing the same. The method comprises mixing an alloy powder with a zirconium powder in an amount of 0.1-0.35 wt % of the weight of the alloy powder to form a mixture. The alloy powder is formed from 10.5-13.5 wt % of samarium, 12.5-15.5 wt % gadolinium, 50-55 wt % of cobalt, 13-17 wt % of iron, 4-10 wt % of copper, and 2-7 wt % of zirconium. The method brings about at low costs a samarium-cobalt magnet having a positive temperature coefficient of remanence.

Abstract: The present invention provides a method for preparing a rare earth permanent magnet material. The preparation method of the present invention comprises atomizing spray process and infiltrating process, wherein the atomizing-sprayed sintered rare earth magnet is placed in a closed container before infiltrating. Through the atomizing spray process a solution containing a heavy rare earth element is coated on the surface of a sintered R1-Fe(Co)—B-A-X-M rare earth magnet, and after baking, heat treatment is performed to infiltrate the sprayed heavy rare earth element to the grain boundary phase of the sintered rare earth magnet. This method decreases the amount of a heavy rare earth element used, increases the coercive force of magnets with a little decrease of remanence, decreases the remanence temperature coefficient and coercive force temperature coefficient of the magnet, and improves resistance of the magnet against demagnetization at a high temperature.

Abstract: A checking tool for measuring a distance between adjacent sinking grooves in an inner hole of a mechanical part, including: a gage block, end cover, sliding piece, pin, base, pin seat, support, measuring rod, spring, barrel, and dial indicator. An inner end face of the base is provided with the sliding piece, at least three concentric circular arc grooves are on the end face, paired eccentric arc grooves are on the sliding piece, the pin connected to the pin seat runs through the base and sliding piece, which is axially limited by the end cover, and the seat rotates relative to the base to realize radial expansion displacement of the sliding piece. A measuring head is formed by the dial indicator, measuring rod, spring and barrel. By positioning the edges of adjacent sinking grooves in an inner hole, measurement for a distance between the grooves is converted into depth measurement.

Abstract: A reinforcing fabric is provided. The reinforcing fabric includes at least one glass fiber, wherein the at least one glass fiber includes a binder, the binder including a polymer resin and a filler, the filler including a recycled asphalt shingle. Further included is a method of reinforcing pavement with the aforementioned reinforcing fabric.

Abstract: The present disclosure provides a cache cleaning method, a cache cleaning apparatus and a client, which improves a cache cleaning efficiency in a client and improves a user experience effectively. The method includes: detecting an amount of used caches in a mobile terminal; if the amount of used caches is larger than a preset threshold, sending a cache application request to an operating system of the mobile terminal so as to trigger a preset cache release rule in the operating system; and after the operating system releases corresponding caches according to the preset cache release rule, sending a cache release request to the operating system such that the operating system releases caches allocated for the cache application request according to the cache release request. The present disclosure may be used in a cache management technique of a mobile terminal.

Abstract: The present invention provides a method for preparing a permanent magnet material, the method comprising coating step and infiltrating step, wherein, coating a rare earth element-containing substance on the surface of a permanent magnet, the magnet having a thickness of 10 mm or less at least in one direction, then placing the magnet into a container, vacuuming to an atmospheric pressure of below 10 Pa, closing the passageway, and then heat treating the closed container. Using the method of the present invention enables the rare earth element to infiltrate homogeneously with a high permeability. In addition, the present invention may have a lower production cost, significantly increase coercive force of the permanent magnet material, but decrease the remanence very little.

Abstract: An infiltration device comprises a heating room, a rotary tray, a rotary bracket, a material box, an elevating mechanism and a transmission device, wherein the heating room has an annular groove, and the rotary tray is arranged below an opening end at a lower end of the heating room; the rotary bracket is installed on the rotary tray; the material box is arranged on the rotary bracket; the rotary tray and the material box can move upward and downward under the action of the elevating mechanism; the rotary bracket can spin in the annular groove and revolve around a central axis of the rotary tray under the action of the transmission device. The infiltration method provided by the invention comprises the steps of charging, vacuum-pumping, high temperature infiltrating, cooling, discharging, etc.

Abstract: The present invention provides a method for improving coercive force of magnets, this method comprises steps as follows: S2) coating step: coating a coating material on the surface of a magnet and drying it; and S3) infiltrating step: heat treating the magnet obtained from the coating step S2). The coating material comprises (1) metal calcium particles and (2) particles of a material containing a rare earth element; the rare earth element is at least one selected from Praseodymium, Neodymium, Gadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium and Lutetium. The method of the present invention can significantly increase coercive force of a permanent magnet material, while remanence and magnetic energy product hardly decrease. In addition, the method of the present invention can significantly decrease the amount of a rare earth element, and accordingly, decrease the production cost.