Abstract: A rack and system for cooling computing devices such as in a data center is disclosed. In one embodiment, the rack supports a plurality of computing devices and comprises a plurality of planar annular sector or trapezoidal shelves, each having one or more positions for holding computing devices. A number of vertical supports may hold the shelves in a vertically spaced arrangement, and an air barrier may be affixed to the rack. The air barrier may have openings for the computing devices to permit exhaust air to flow through the air barrier into a hot aisle. The rack maybe configured to be connected to other similar racks to form a vertical annular hyperboloid or a vertical hyperbolic annular paraboloid, and the computing devices may be installed to discharge exhaust at an angle relative to a centerline of the vertical annular hyperboloid or a vertical hyperbolic annular paraboloid to improve airflow.

Abstract: A heat sink for cooling computing devices such as in a data center is disclosed. The heat sink includes a plurality of fin stages arranged in spaced relation between an intake side and an exhaust side. The plurality of fin stages have a height that increases from the intake side to the exhaust side.

Abstract: A method is provided for capturing a load spectrum of mechanical stresses which act on a machine element during an intended use. Mechanical stresses acting on the machine element are captured by a measuring apparatus of a load-spectrum-capturing device arranged on or in the machine element over a capturing period. Proceeding from the measured data acting on the machine element and captured by the measuring apparatus, a load spectrum depicting the mechanical stresses acting on the machine element is determined. In this method, partial load-spectrum data are calculated at time intervals by a load-spectrum-determining apparatus of the load-spectrum-capturing device proceeding from the captured measured data and the partial load-spectrum data are stored in a data-memory apparatus of the load-spectrum-capturing device. The partial load-spectrum data determined over the capturing period form a load-spectrum data set of a load spectrum.

Abstract: An evaporator device is provided, including a chamber including an inlet, an outlet, and a surface, the inlet being configured to direct a liquid coolant into the chamber and the outlet is configured to direct a vapor coolant away from the chamber, and the surface is in thermal communication with the liquid coolant or the vapor coolant, and a porous unit disposed adjacent to the surface, the porous unit being configured to (i) absorb the liquid coolant, (ii) bring the liquid coolant into thermal communication with the surface, (iii) subject the liquid coolant to a phase transition to a vapor coolant, and (iv) direct said vapor coolant away from the surface, wherein the surface and the porous unit are of different materials, and the porous unit is thermally insulating.

Abstract: A wafer positioning device includes at least one fixed stop that is positioned at a periphery of a clamped position on a surface of a chuck and an extendible finger. A finger extension mechanism extends the finger outward toward a center of the chuck surface, and retracts the finger away from the center of the chuck surface. The finger is configured, when a wafer is placed on the chuck surface and the finger extension mechanism is operated to extend the finger outward, to push the wafer laterally toward the fixed stop until an edge of the wafer contacts the fixed stop when a distal end of the finger is at the periphery of the clamped position.

Abstract: A treadmill including a frame, a suspension connector, a flexible deck, and a belt. The suspension connector is connected to the frame. The flexible deck is connected to the suspension connector. The flexible deck includes a metal panel extending substantially an entire width and length of the flexible deck. The belt is disposed on the flexible deck.

Abstract: A method for manufacturing a cylindrical brush of a cleaning tool, comprises a cylindrical brush having a core member, a plurality of rail plates, a plurality of polyvinyl alcohol (PVA) nodule foam bars and a pair of end caps. The core member includes an outer wall having a plurality of core holes and a pair of openings. The plurality of rail plates having a plurality of rail holes arranged along the outer wall of the core member. The plurality of polyvinyl alcohol (PVA) nodule foam bars is installed at each of the plurality of rail plates such that each of a plurality of nodules of the PVA nodule foam bar aligns with the plurality of core holes and with the plurality of rail holes. The pair of end caps encloses the pair of openings of the core member.

Abstract: Disclosed is a water outlet control component, which is installed on a water passing body. The water outlet control component comprises a water distributor, a valve core and a connector. The side wall of the water distributor is provided with a side water inlet through-flow opening corresponding to a water inlet interface on the water passing body and a side water outlet through-flow opening corresponding to a water outlet interface on the water passing body. The water distributor is further provided with an end surface water inlet through-flow opening corresponding to the side water inlet through-flow opening and an end surface water outlet through-flow opening communicated with the side water outlet through-flow opening. The valve core controls the connection or disconnection between the end surface water inlet through-flow opening and the end surface water outlet through-flow opening.

Abstract: Certain examples of the disclosure concern a centralized steam cleaning system which includes a central control unit and a pipe network distributed within a building. The pipe network can include a vacuum pipeline and a water pipeline extending alongside each other.

Abstract: An adjustable cooling duct for improved facility (e.g., data center) cooling is disclosed. In one embodiment, the cooling duct comprises a cylindrical flexible membrane (e.g., fabric) having a first annular end and a second annular end, and a cincture mechanism connected around the perimeter of the cylindrical flexible membrane between the first annular end and the second annular end. The cincture mechanism may be motorized and that may be controlled by a management computer based on pressure sensor readings. The cincture mechanisms may be automated for coordinated control of multiple ducts in parallel by the management computer based on environmental sensor readings to improve facility cooling.

Abstract: A memory management method for a memory storage device is provided. The memory management method includes: detecting effective information of at least one operation event performed by the memory storage device in a first mode; and adjusting a threshold value according to the effective information. The threshold value is configured to determine whether to instruct the memory storage device to enter the first mode.

Abstract: Systems and methods for managing airflow for cooling computing devices (e.g., in a data center) are disclosed. To prevent damage to computing devices after power outages in low temperatures, a subset of the computing devices may be preheated, started, and operated in an exhaust air recirculation mode to raise the temperatures of the other computing devices. Preheating may for example use heaters or warm air temporarily diverted from external sources such as nearby buildings. Thermal mass (e.g., phase change material) may be positioned near the computing devices to capture heat that is later released in the event of a dramatic temperature drop such a cold weather power outage.

Abstract: A blood pump (100) and a driving device thereof. The driving device (10) comprising a driving shell (11), a rotor (12) and a stator mechanism (13); the rotor (12) comprises a rotating shaft (121) and a first magnet (122), one end of the rotating shaft (121) is accommodated in the driving shell (11), and the first magnet (122) is fixedly connected with the rotating shaft (121); the stator mechanism is accommodated in the driving shell (11), the stator mechanism (13) comprises a driving stator (131), the driving stator (131) and the rotating shaft (121) are provided at intervals along the axis of the rotating shaft (121), and the driving stator (131) can generate a rotating magnetic field interacting with the first magnet (122), so that the first magnet (122) can drive the rotating shaft (121) to rotate.

Abstract: A blood pump (100) and a driving device (10) thereof.

Abstract: Disclosed are a capacitance-to-digital conversion circuit, a capacitance-to-digital conversion method and an electronic chip. The capacitance-to-digital conversion circuit includes a first module, a comparator and an adaptive range-shift module; the first module includes a successive approximation unit, a first adder, a first digital-to-analog converter, a second adder, a third adder and an integrating unit. The first module further includes a second digital-to-analog converter connected to the third adder. The comparator, the adaptive range-shift module and the first adder are connected in series and the comparator is connected to the second digital-to-analog converter. By the present application, the adverse influence caused by the parasitic and interference is well avoided, the capacitance-to-digital conversion circuit may work in a harsh environment, the robustness of the circuit is significantly improved and the application range of the circuit is expanded.

Abstract: A cervical orthotic device is generally provided. In an example, the device can include a base, sidewalls extending upwardly from the base, and a cervical support surface opposite the base and configured to unite the sidewalls. In certain examples, the sidewalls can include opposingly paired lateral sidewalls and first and second longitudinal sidewalls. In some examples, the cervical support surface can include a first planar portion adjacent the first longitudinal sidewall, a second planar portion adjacent the second longitudinal sidewall, and an arcuate portion intermediate the planar portions.

Abstract: A memory adaptive temperature controlling method, a storage device, and a control circuit unit are provided. In this exemplary embodiment, the temperature value is obtained according to the temperature measured by the thermal sensor, and the access speed to be reached is calculated according to the temperature change rate within the specific time range and the adjustment percentage when it is determined that the speed-down or speed-up operation is required to be performed. By adjusting the access speed of the memory storage device in a stepwise manner, the temperature of the memory storage device may be stabilized, thereby striking the balance between the temperature stability and the system performance of the memory storage device.

Abstract: A facility (e.g., data center) for more efficient cooling of computing devices is disclosed. In one embodiment, the data center comprises a set of external walls, a ceiling connected to the external walls and having circular exhaust openings, and one or more pods positioned within the external walls and below the ceiling. A set of flexible tubes are used to connect the pod exhaust openings to the ceiling openings. Actuating closures may be used (e.g., at one end of each of the tubes) to control airflow, and air pressure sensors may be placed near or inside one or more of the tubes. A controller may be configured to receive air pressure data from the air pressure sensors and adjust the actuating closures to maintain a desired air pressure level. In some examples, the actuating closure may have a normally closed position when power is not applied.

Abstract: Generally, a polymer nanomaterial encapsulation system useful in the production of polymer encapsulated nanoparticles comprised of a hydrophobic nanoparticle encapsulated in the hydrophobic region of the polymer with the external hydrophilic region of the polymer ensuring water-solubility and affording a functional group which can be utilized for the production of nanoparticle conjugates. Specifically, particular embodiments include a polymer nanoparticle structure including one or more of: a quantum dot and/or a superparamagnetic iron oxide nanoparticle and/or an upconverting nanoparticle, encapsulated in polystyrene-b-polyethylene glycol amine for the production of antibody conjugates useful in the capture of cellular targets.

Abstract: Disclosed herein is an exercise machine that includes an elongated frame. The exercise machine includes a moveable carriage slidably coupled to the elongated frame. The exercise machine includes a spring support rod slidably coupled with the elongated frame and selectively positionable by a handle. The exercise machine includes at least one resistive member coupled at a first end with the spring support rod and at a second end with the moveable carriage. The resistive member is configured to bias the moveable carriage relative to the elongated frame. The exercise machine includes a first spring positioning rod slidably coupled to and moveable within a first rail on the elongated frame and a second spring positioning rod slidably coupled to and moveable within a second rail on an opposing side of the elongated frame. The spring support rod is extends between the first and second spring positioning rods.