Abstract: This invention relates to an improved one-pot synthetic process for the preparation of glycidol from the reaction of glycerol and dimethyl carbonate. More specifically, the invention relates to a one-pot synthetic process for the preparation of glycidol comprising the reaction of glycerol and dimethyl carbonate in the presence of an ionic liquid catalyst having the formula: [Cat+][X] wherein: [Cat] represents one or more cationic species, and [X] represents one or more anionic species; wherein the reaction is conducted at a temperature of from 100° C. to 160° C. and wherein the molar ratio of glycerol to dimethylcarbonate is from 1:4 to 1:10.

Abstract: An oral care implement with a gripping portion. The oral care implement is a toothbrush (100) including an elongated body (101) formed of a first material and a handle (104) including a proximal gripping portion (114) and a distal neck portion (115) supporting a head (102) containing a plurality of tooth cleaning elements (108). A longitudinally elongated through slot (130) is formed in the gripping portion (114) of the handle (104) which extends transversely between front and rear exposed surfaces (112) of the handle (104). A second material which is elastomeric is disposed in the slot (130). A longitudinally elongated depression (120) having a transversely concave profile is formed in the rear exposed surfaces (112) of the handle (104) which communicates with the slot (130). The second material extends at least partially in the depression (120).

Abstract: A wireless transmission device, arranged inside a display object or connected with the display object, includes a power supply interface, an initialization setting button, a wireless transmission unit, a processing unit, and a storage unit. The input end of the power supply interface is connected with the power supply end of the display object, the output end of the power supply interface is connected with the wireless transmission unit and the processing unit respectively, and the initialization setting button and the storage unit are connected with the processing unit respectively. A unique identification assigned to the display object is stored in the storage unit. Initialization setting of the wireless transmission device is implemented by pressing the initialization setting button, and the processing unit transmits out the identification, orientation, and/or predetermined viewable angle of the display object constantly or regularly via the wireless transmission unit.

Abstract: A system and method for controlling an AC motor drive includes a control system programmed with an algorithm configured to optimize operation of the motor drive. Specifically, the control system is programmed to input an initial voltage-frequency command to the drive. The initial voltage-frequency command includes a voltage reference and a frequency reference corresponding to an operating point of an initial voltage/frequency (V/Hz) curve. The control system monitors a real-time output of the drive, modifies the voltage reference based on the real-time output of the drive, and transmits a modified voltage-frequency command to the drive. The modified voltage-frequency command corresponds to an operating point of a modified V/Hz curve defined by the modified voltage reference and the initial V/Hz curve.

Abstract: A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also programmed to estimate a rotor speed of the AC induction machine according to a frequency-domain signal processing algorithm and determine if the rotor speed estimated thereby is valid. If the rotor speed estimated by the frequency-domain signal processing algorithm is valid, then a tuned rotor speed of the AC induction machine is estimated according to the linear speed estimation algorithm and based, in part, on the rotor speed estimated by the frequency-domain signal processing algorithm.

Abstract: An exemplary thin film transistor array substrate (200) includes a substrate (210) and a gate electrode (220) formed on the substrate. The gate electrode includes an adhesive layer (226) formed on the substrate, a conductive layer (224) formed on the adhesive layer and a barrier layer (222) formed on the conductive layer, the adhesive layer and the barrier layer both have sandwich structures. A central core of the adhesive layer, the conductive layer, and a central core of the barrier layer are made of a same material.

Abstract: A bioengineered IVD for disc replacement has been developed that has mechanical and structural support characteristics similar to those of native IVD. Extracellular matrix (ECM) provides support to living cell components and interacts with the living cellular components during the fabrication process without introducing toxicity. The composition can be produced from both natural or synthetic source but preferably natural and induced to self-assemble or reconstitute into its solid form under conditions that are mild enough to support cellular survival and growth. The cells induce a volume change of the structures, leading to changes in dimension, ECM density, cell density, mechanical property and stability, etc. The extent of the change in volume of the composition can be precisely controlled by factors such as the density of the ECM, the density of the living cells, the timing for interaction and the serum concentration. Increased structural support is provided by crosslinking.

Abstract: A system and method for determining unknown values of certain motor parameters includes a motor input device connectable to an electric motor having associated therewith values for known motor parameters and an unknown value of at least one motor parameter. The motor input device includes a processing unit that receives a first input from the electric motor comprising values for the known motor parameters for the electric motor and receive a second input comprising motor data on a plurality of reference motors, including values for motor parameters corresponding to the known motor parameters of the electric motor and values for motor parameters corresponding to the at least one unknown motor parameter value of the electric motor. The processor determines the unknown value of the at least one motor parameter from the first input and the second input and determines a motor management strategy for the electric motor based thereon.

Abstract: A protein assay apparatus includes at least one light-emitting unit for generating a first light, a second light or a third light for BCA protein assay, Bradford protein assay or Lowry protein assay, and at least one light-sensing unit for sensing the absorbed light passed through the test sample to calculate the concentration of protein in the test sample. This design shortens the protein examination time and greatly reduces the protein examination cost.

Abstract: A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also programmed to estimate a rotor speed of the AC induction machine according to a frequency-domain signal processing algorithm and determine if the rotor speed estimated thereby is valid. If the rotor speed estimated by the frequency-domain signal processing algorithm is valid, then a tuned rotor speed of the AC induction machine is estimated according to the linear speed estimation algorithm and based, in part, on the rotor speed estimated by the frequency-domain signal processing algorithm.

Abstract: A light source apparatus for fluorescence photography of biomolecule sample gels is disclosed. The light source apparatus comprises a housing, a transparent plate disposed in a light transmission zone at the top of the housing, and at least one LED array disposed in the housing out of the range of the light transmission zone. The LED array irradiates obliquely to the light transmission zone for preventing the light spots from interfering in the observation. Each of LED array may comprises different colors of LEDs for different biomolecule samples.

Abstract: An assistant device for pipetting is disclosed. The assistant device for pipetting comprises: a multi-well plate, a first light emitting element array, a first photo detector array, a second light emitting element array, a second photo detector array, a control circuit, and a display. The multi-well plate comprises a plurality of wells for containing a solution, and the plurality of wells are disposed as an array. The first and second light emitting element arrays are disposed at adjacent sides of the multi-well plate. The first and second photo detector arrays are disposed at the side opposite to the first and second light emitting element arrays respectively. The control circuit is connected to the light emitting element arrays, the photo detector arrays, and the display to determine the amount of pipetting times of each of the wells and display on the display.

Abstract: A wireless transmission device, arranged inside a display object or connected with the display object, includes a power supply interface, an initialization setting button, a wireless transmission unit, a processing unit, and a storage unit. The input end of the power supply interface is connected with the power supply end of the display object, the output end of the power supply interface is connected with the wireless transmission unit and the processing unit respectively, and the initialization setting button and the storage unit are connected with the processing unit respectively. A unique identification assigned to the display object is stored in the storage unit. Initialization setting of the wireless transmission device is implemented by pressing the initialization setting button, and the processing unit transmits out the identification, orientation, and/or predetermined viewable angle of the display object constantly or regularly via the wireless transmission unit.

Abstract: An intelligent information interaction system includes a data storage unit, a mobile terminal and at least one display object. Each display object is provided with or connected with a wireless transmission device therein, and the mobile terminal is provided with a wireless transmission unit therein. A unique identification is assigned for each display object, and data information displayed on the display object or data information relevant to the data information displayed on the display object, which corresponds to each identification, is stored in the data storage unit. The wireless transmission device regularly or constantly transmits a wireless signal containing the identification of the display object corresponding thereto, and the mobile terminal, after sensing the wireless signal via the wireless transmission unit thereof, acquires the identification, and acquires data information corresponding to the identification from the data storage unit in accordance with the identification.

Abstract: A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also programmed to estimate a rotor speed of the AC induction machine according to a frequency-domain signal processing algorithm and determine if the rotor speed estimated thereby is valid. If the rotor speed estimated by the frequency-domain signal processing algorithm is valid, then a tuned rotor speed of the AC induction machine is estimated according to the linear speed estimation algorithm and based, in part, on the rotor speed estimated by the frequency-domain signal processing algorithm.

Abstract: Provided herein is a device for quantitative analysis of a micro-volume solution. The device comprises a base portion provided with a light-emitting fiber, a movable arm provided with a light-receiving fiber, and at least one positioning block disposed between the movable arm and the base portion so that an optical path with a constant length is formed between the light-emitting fiber and the light-receiving fiber when the positioning block is clamped by the movable arm and the base portion. The solution concentration related to the absorbance with respect to the standard optical path length may be evaluated based on the built-in database and the optical intensity of light having passed through the solution as detected by a light sensor.

Abstract: A thin film transistor (TFT) substrate includes gate lines, data lines intersecting with the gate lines, a plurality of TFTs, pixel electrodes, and a common electrode insulating the gate lines, the data lines, the TFTs, and the pixel electrode. Each pixel electrode is connected to one of the gate lines and one of the data lines via one of the TFTs. A layer stack including an insulating layer and a passivation layer is sandwiched between the pixel electrodes and the common electrode.