摘要:
A process for characterizing a sample comprising a population of linear macromolecules of interest (104) and a population of long chain branched macromolecules of interest (103), the process including four steps. The first step is to provide a flow through separating medium (100) and a liquid eluant (101) in which the macromolecules of interest dissolve, the separating medium defining flow through channels (102), the eluant flow rate and the average diameter of the channels being in a range so that the linear macromolecules of interest elute before the long chain branched macromolecules of interest (105) (106). The second step is to introduce a sample into the liquid eluant. The third step is to flow the liquid eluant under pressure through the channels (102) of the separating medium (100). The fourth step is to differentiate the linear macromolecules of interest (104) from the long chain branched macromolecules of interest (103) based on their successive elution volumes established in the third step such as by determining the refractive index of the successive elution volumes or by subjecting the successive elution volumes to size exclusion chromatography.
摘要:
Systems and methods for immobilizing a target such as a human or animal with a stimulus signal coupled to the target via electrodes provide the stimulus signal in accordance with a strike stage, a hold stage, and a rest stage. Systems include a launch device and separate projectile, where the projectile includes a battery, a waveform generator, and electrodes. The strike stage and hold stage may include pulses at a pulse repetition rate, for example, from 10 to 20 pulses per second, each pulse delivering a predetermined amount of charge, for example, about 100 microcoulombs at less than about 500 volts peak. The hold stage may continue immobilization at a lesser expenditure of energy compared to the strike stage. Because the strike stage and hold stage may immobilize by interfering with skeletal muscle control by the target's nervous system, a rest stage may allow the target to take a breath.
摘要:
A backpack including an external frame is provided. The external frame may include a pair of upright members and a pair of cross members. The cross members may extend transversely to, and may be attached to, the pair of upright members. The upright members and the cross members may be constructed of a laminate structure having layers of carbon fiber and wood, resulting in a lightweight, yet strong, frame.
摘要:
A lock assembly includes a lock body with a shackle. The shackle has a leg. A locking element is disposed in the lock body and is selectively engageable to the shackle. A cam is disposed in the lock body and includes a locked position, an unlocked position and a shackle removal position. The leg includes a shackle removal recess that only partially extends circumferentially about an outer peripheral surface disposed about a longitudinal axis of the leg and is sized to receive the first locking element sufficiently to permit movement of the cam to the shackle removal position. The shackle is rotatable in the unlocked position to expose the shackle removal recess to the locking element.
摘要:
A process for the manufacture of a decorative board, which board, on its upper surface includes a decorative layer and a wear layer of cellulose and thermosetting amino resin. A decorative layer and wear layer is applied as a surface layer on a base layer and bonded thereto by pressing under elevated temperature and pressure in a laminate press. The wear layer, the decor layer and the base layer are arranged to form a stack of layers. The stack of layers are fed into a laminate press and pressed therein under heat and pressure where at least the upper surface becomes heated. The decorative board is acquired from the laminate press whereupon a forced cooling of the decorative board is initiated in order to bring the surface temperature of the decorative board down.
摘要:
The present invention relates to methods of making and using tunable capacitors and devices. Using the methods described, one or more secondary tunable capacitors can be connected to a primary capacitor by printing a connector conducting layer or feature to obtain a desired net capacitance. Digitally printing the connector conducting layer allows the number of secondary capacitors connected into the circuit to be determined during the integrated circuit fabrication process, without the need for individual masks connecting the appropriate number of secondary capacitors. This provides an in-process or post-process trimming method to obtain the desired precision and accuracy for capacitors. Various sizes and combinations of secondary capacitors can be connected to obtain high precision capacitors and/or improved matching of capacitance values.
摘要:
A method for making an electronic device, such as a MOS transistor, including the steps of forming a plurality of semiconductor islands on an electrically functional substrate, printing a first dielectric layer on or over a first subset of the semiconductor islands and optionally a second dielectric layer on or over a second subset of the semiconductor islands, and annealing. The first dielectric layer contains a first dopant, and the (optional) second dielectric layer contains a second dopant different from the first dopant. The dielectric layer(s), semiconductor islands and substrate are annealed sufficiently to diffuse the first dopant into the first subset of semiconductor islands and, when present, the second dopant into the second subset of semiconductor islands.
摘要:
A pipe fusion data management system, including: a data receiving interface for receiving data directly or indirectly from at least one remote source, the data including at least one data field representing at least one of the following: fusion data, pipe data, parameter data, operation data, configuration data, condition data, measurement data, entity data, user data, or any combination thereof; an input for facilitating user input; a storage device for storing received and/or input data; and a processor for generating a visual user interface to display received, input, stored, and/or processed data relating to the fusion, joining and/or installation process.
摘要:
A process for the manufacture of a decorative board, which board, on its upper surface includes a decorative layer and a wear layer of cellulose and thermosetting amino resin. A decorative layer and wear layer is applied as a surface layer on a base layer and bonded thereto by pressing under elevated temperature and pressure in a laminate press. The wear layer, the decor layer and the base layer are arranged to form a stack of layers. The stack of layers are fed into a laminate press and pressed therein under heat and pressure where at least the upper surface becomes heated. The decorative board is acquired from the laminate press whereupon a forced cooling of the decorative board is initiated in order to bring the surface temperature of the decorative board down.
摘要:
Process variation-tolerant diodes and diode-connected thin film transistors (TFTs), printed or patterned structures (e.g., circuitry) containing such diodes and TFTs, methods of making the same, and applications of the same for identification tags and sensors are disclosed. A patterned structure comprising a complementary pair of diodes or diode-connected TFTs in series can stabilize the threshold voltage (Vt) of a diode manufactured using printing or laser writing techniques. The present invention advantageously utilizes the separation between the Vt of an NMOS TFT (Vtn) and the Vt of a PMOS TFT (Vtp) to establish and/or improve stability of a forward voltage drop across a printed or laser-written diode. Further applications of the present invention relate to reference voltage generators, voltage clamp circuits, methods of controlling voltages on related or differential signal transmission lines, and RFID and EAS tags and sensors.