Abstract: An iridium complex represented by formula (1) and an OLED using the same are shown. In Formula (1), l, m, n, p, b, R1-R6, X1-X6, A1, A2 and B are the same as defined in the specification. The iridium complex is able to emit a range of visible light with high color purity and high efficiency as neat sample.

Abstract: A platinum complex having at least one carbene fragment, and an OLED using the same are described. The platinum complex contains a platinum cation, a zero-valent nitrogen-containing heterocyclic bidentate chelate, and a dianionic nitrogen-containing heterocyclic bidentate chelate. The zero-valent nitrogen-containing heterocyclic bidentate chelate has at least one carbene unit coordinating to platinum. The dianionic nitrogen-containing heterocyclic bidentate chelate has at least one electron-withdrawing substituent, and forms two N—Pt bonds, or one N—Pt bond and one C—Pt bond, with the central platinum cation.

Abstract: The present invention provides a class of iridium (III) based phosphors bearing both pincer carbene and pyrazolyl chelates. Differing from the conventional cyclometalated Ir(III) metal complexes, these novel phosphorescent Ir(III) metal complexes are synthesized from a class of pincer carbene chelate, a class of pyrazolyl-based chelate and an iridium metal source complex. Because the phosphorescent Ir(III) metal complex proposed by the present invention includes multiple strong bonding interactions (Ir—C bond), the non-radiative decay from the higher lying triplet excited state can be effectively suppressed. Thus, this novel phosphorescent Ir(III) metal complex is able to emit a range of visible light (particularly the blue light) with high color purity and high efficiency as neat sample. Moreover, this novel phosphorescent Ir(III) metal complex is also adapted as the guest emitter in the light emitting layer (EML) for the traditional doped OLED architecture.

Abstract: An iridium complex represented by formula (1) and an OLED using the same are shown. In Formula (1), l, m, n, p, b, R1-R6, X1-X6, A1, A2 and B are the same as defined in the specification. The iridium complex is able to emit a range of visible light with high color purity and high efficiency as neat sample.

Abstract: Systems and methods for predicting query execution time for concurrent and dynamic database workloads include decomposing each query into a sequence of query pipelines based on the query plan from a query optimizer, and predicting an execution time of each pipeline with a progress predictor for a progress chart of query pipelines.

Abstract: A power conversion apparatus and a controlling method thereof are disclosed. The power conversion apparatus is applied with a power generation apparatus, which outputs a first signal. The power conversion apparatus includes a conversion-sensing circuit, a control signal generating circuit and a switching circuit. The conversion-sensing circuit converts the first signal into a second signal, and senses at least a voltage waveform change of the second signal to generate a time interval. The control signal generating circuit is electrically connected with the conversion-sensing circuit and outputs a control signal according to the time interval. The switching circuit is electrically connected with the power generation apparatus and the control signal generating circuit, and has a plurality switching elements. The switching circuit receives the first signal and conducts one of the switching elements according to the control signal so as to convert the first signal and output an output signal.

Abstract: Disclosed herein is a hinge antibody capable of being selectively activated in a target cell or tissue to treat a condition therein. The hinge antibody includes a functional antibody, two inhibitory domains and four cleavable linkers. The functional antibody is capable of treating the condition in an activated state, and has two light chains and two heavy chains. Each inhibitory domain includes a hinge domain of an immunoglobulin and consists of two peptide arms. Each cleavable linker includes a peptide substrate cleavable by an enzyme specifically or highly expressed in the target cell or tissue, and connects one of the peptide arms of the inhibitory domains to the N-terminal of one of the light chains and heavy chains of the functional antibody. Also disclosed herein are methods for preparing and using this hinge antibody.

Abstract: A power conversion apparatus and a controlling method thereof are disclosed. The power conversion apparatus is applied with a power generation apparatus, which outputs a first signal. The power conversion apparatus includes a conversion-sensing circuit, a control signal generating circuit and a switching circuit. The conversion-sensing circuit converts the first signal into a second signal, and senses at least a voltage waveform change of the second signal to generate a time interval. The control signal generating circuit is electrically connected with the conversion-sensing circuit and outputs a control signal according to the time interval. The switching circuit is electrically connected with the power generation apparatus and the control signal generating circuit, and has a plurality switching elements. The switching circuit receives the first signal and conducts one of the switching elements according to the control signal so as to convert the first signal and output an output signal.

Abstract: Systems and methods for consolidating workload on one or more computing devices, comprising: generating tenant performance profiles for at least one of a buffer memory size and a buffer warmness; assigning one or more tenants to a database management system (DBMS) instance; configuring the one or more tenants to minimize a total server count needed to host the one or more tenants; and reducing the total server count by adjusting of buffer sizes while satisfying Service Level Agreement (SLA) requirements.

Abstract: Systems and methods for prioritizing queries in a cloud based database by determining a priority score in real time under an imprecise query execution time; and incrementally maintaining query priority scores.

Abstract: A power conversion apparatus and a protection method of the power conversion apparatus while a feedback current signal of the power conversion apparatus is abnormal are provided. The protection method includes a step of stopping switching a power switch if a duty cycle of a pulse width modulation signal is continuously greater than a preset duty cycle for at least one signal cycle and a voltage of a current sensing signal is smaller than a preset voltage level during the at least one signal cycle.

Abstract: A bis-tridentate iridium complex represented by a formula (I): where R3 to R8, R21 to R23, R9, R10, X1, X2, and X3 are as defined in the specification.

Abstract: A wind-power generator control system is provided. The wind-power generator control system includes a wind turbine, a power generator, a normally closed relay, and a control unit. The wind-power generator has a first output terminal and a second output terminal, and outputs a power output via the first and second output terminal when the wind turbine rotates. The normally closed relay is connected between the first and second output terminals. The control unit transmits a control signal to the normally closed relay by grid power. Also, when the normally closed relay does not receive the control signal, the first output terminal short-circuits the second output terminal by the normally closed relay for protecting the wind-power generator. When the normally closed relay receives the control signal, the first output terminal open-circuits the second output terminal by the normally closed relay for providing the power output.

Abstract: A power detection apparatus is provided. The power detection apparatus includes a first current processing circuit and a second current processing circuit. The first current processing circuit is configured to provide a dynamic bias voltage at a bias terminal in response to a variation of a system power. The second current processing circuit is coupled to the first current processing circuit and is biased under the dynamic bias voltage for outputting a power good signal at an output terminal to represent that the system power is ready when the dynamic bias voltage is greater than a threshold voltage.

Abstract: A ruthenium complex for a dye-sensitized solar cell includes a chemical formula represented by Formula (I): RuL1L2L3??(I) where L1 represents a monodentate ligand; L2 represents a tridentate ligand of ?and L3 represents a bidentate ligand of where R1 to R27 have meaning as defined in the specification.

Abstract: An AC/DC converting circuit and a starting method thereof are provided. An AC detection or a rectified AC voltage detection is disabled when the AC voltage or the rectified AC voltage not up to a start-up voltage is detected, so as to shorten a recovery time of a voltage of a power supply terminal of an AC/DC power conversion controller, and further shorten a starting time of the AC/DC converting circuit.

Abstract: A power transforming apparatus implements a transformation of an energy signal and comprises a control unit, a pulse width modulation (PWM) unit, a transformation unit, and a slope compensation unit. The control unit outputs a target power signal. The PWM unit is coupled with the control unit and generates a switch signal. The transformation unit is coupled with the PWM unit, and implements a power transforming of the energy signal to output an energy transformation signal according to the switch signal. The slope compensation unit is coupled with the control unit and the PWM unit, and implements a slope compensation, according to the target power signal and a feedback signal, to output a compensation signal to the PWM unit. The switch signal is generated according to the target power signal and the compensation signal.

Abstract: Systems and methods are disclosed to perform performance prediction for cloud-based databases by building on a computer a cloud database performance model using a set of training workloads; and using a learned model on the computer to predict database performance in the cloud for a new workload, wherein for each reference workload r and hardware configuration h, system throughput tr,h, average throughput of ?r and standard deviation ?r, comprising normalizing each throughput as: t r , h _ = t r , h - a r ? r .

Abstract: A flyback-based power conversion apparatus and a power conversion method thereof are provided. By switching first and second detection switches disposed in a control chip and coupled to a multi-function pin of the control chip at different timings, the present invention applies a collocation of a voltage-current detection auxiliary circuit and a current detection circuit at a certain timing to execute a detection of the AC input voltage received by a flyback power conversion circuit, and the present invention applies a collocation of the auxiliary voltage-current detection circuit, an over temperature protection unit and an over voltage protection unit at another timing to execute detections of an over temperature protection and an over voltage protection. As the result, a single multi-function detection pin of the control pin is corresponding to a plurality of related function detections, so as to reduce the production cost of manufacturing the control chip.

Abstract: A platinum complex of a formula (I): where R1 and R2 are each fluoroalkyl, X is C—H or nitrogen, and L1 is a bidentate, nitrogen-containing heteroaromatic ligand.