Abstract: The invention provides compounds of the formula: (A), pharmaceutically acceptable salts, pharmaceutical compositions thereof and methods of using these compounds, salts, or compositions to treat hyperphosphatemia, chronic kidney disease, and/or the cardiovascular disease associated with chronic kidney disease.

Abstract: The invention provides compounds of the formula: (A), pharmaceutically acceptable salts, pharmaceutical compositions thereof and methods of using these compounds, salts, or compositions to treat hyperphosphatemia, chronic kidney disease, and/or the cardiovascular disease associated with chronic kidney disease.

Abstract: A starting and stopping method for a static synchronous series compensator (SSSC) is provided. A starting process includes: connecting a converter to a shunt transformer, and closing a breaker which connect the AC system and the shunt transformer to charge the converter until the DC voltage is stable; opening the breaker, and connecting the converter to a series transformer through a change-over switch; and deblocking the converter, and controlling a current of a bypass switch of the series transformer to approach zero. A stopping process includes: switching a control mode of the converter to make the current of the bypass switch approaches zero when closed the bypass switch, then controlling a current of the series transformer to be gradually reduced to zero to make the series transformer out of service, and blocking the converter.

Abstract: A line power control method and system for a unified power flow controller includes outer loop line power control, inner loop valve side current control, and converter valve control. Series-side converter valve side current reference values Isedref and Iseqref are calculated by means of the outer loop line power control according to line power instructions Pref and Qref that are input, a measured line power UL, and measured line power Pline and Qline; a converter output voltage reference value Ucref is calculated by means of the inner valve side current control according to the valve side current reference values that are output by means of the outer loop power control, a measured valve side current, and a measured valve side voltage; and finally, a converter outputs, according to the voltage reference value, a corresponding voltage to control line power to achieve a reference value.

Abstract: A unified power flow controller for a double-circuit transmission line comprises at least one parallel-connection transformer, three current converters, at least two series-connection transformers, a parallel-connection side switching circuit, a series-connection side switching circuit and a direct current common bus. The series-connection transformers connected with at least one group of by-pass switches in parallel. The three current converters connected to each loop line in series after being connected with at least one series-connection transformer through the series-connection side switching circuit. The three current converters connected to an alternating current system after connected with at least one parallel-connection transformer through a parallel-connection side switching circuit starting circuit. The three current converters are connected to the direct current common bus through a transfer switch.

Abstract: A starting and stopping method for a static synchronous series compensator (SSSC) is provided.

Abstract: A line power control method and system for a unified power flow controller includes outer loop line power control, inner loop valve side current control, and converter valve control. Series-side converter valve side current reference values Isedref and Iseqref are calculated by means of the outer loop line power control according to line power instructions Pref and Qref that are input, a measured line power UL, and measured line power Pline and Qline; a converter output voltage reference value Ucref is calculated by means of the inner valve side current control according to the valve side current reference values that are output by means of the outer loop power control, a measured valve side current, and a measured valve side voltage; and finally, a converter outputs, according to the voltage reference value, a corresponding voltage to control line power to achieve a reference value.

Abstract: A frequency-conversion differential protection method for an output transformer of a static frequency convertor system.

Abstract: A unified power flow controller for a double-circuit transmission line comprises at least one parallel-connection transformer, three current converters, at least two series-connection transformers, a parallel-connection side switching circuit, a series-connection side switching circuit and a direct current common bus. The series-connection transformers connected with at least one group of by-pass switches in parallel. The three current converters connected to each loop line in series after being connected with at least one series-connection transformer through the series-connection side switching circuit. The three current converters connected to an alternating current system after connected with at least one parallel-connection transformer through a parallel-connection side switching circuit starting circuit. The three current converters are connected to the direct current common bus through a transfer switch.

Abstract: Embodiments of the present invention disclose a current source converter differential protection method, including: sampling, by a relay protection device, secondary side currents of current transformers on two sides of a protected current source converter, to obtain incomer-side three-phase currents, and outgoer-side three-phase currents; rectifying the incomer-side three-phase currents and the outgoer-side three-phase currents, to obtain an incomer-side input current and an outgoer-side output current which are equivalent; converting the incomer-side input current and the outgoer-side output current according to a current ratio of the current transformers on the two sides, to acquire a transient differential current and a transient restraint current; acquiring a differential current and a restraint current according to the transient differential current and the transient restraint current; and achieving differential protection according to the differential current and the restraint current.

Abstract: Embodiments of the present invention disclose a current source converter differential protection method, including: sampling, by a relay protection device, secondary side currents of current transformers on two sides of a protected current source converter, to obtain incomer-side three-phase currents, and outgoer-side three-phase currents; rectifying the incomer-side three-phase currents and the outgoer-side three-phase currents, to obtain an incomer-side input current and an outgoer-side output current which are equivalent; converting the incomer-side input current and the outgoer-side output current according to a current ratio of the current transformers on the two sides, to acquire a transient differential current and a transient restraint current; acquiring a differential current and a restraint current according to the transient differential current and the transient restraint current; and achieving differential protection according to the differential current and the restraint current.

Abstract: A frequency-conversion differential protection method for an output transformer of a static frequency convertor system.

Abstract: The present invention provides aldosterone synthase inhibitors of the formula: intermediates, methods for their preparation, pharmaceutical preparations, and methods for their use.

Abstract: The present invention provides aldosterone synthase inhibitors of the formula: intermediates, methods for their preparation, pharmaceutical preparations, and methods for their use.

Abstract: The present invention relates to novel, non-secosteroidal, phenyl-benzothiophene compounds with vitamin D receptor (VDR) modulating activity that are less hypercalcemic than 1?,25 dihydroxy vitamin D3. These compounds are useful for treating bone disease and psoriasis.

Abstract: Compounds of formula and their pharmaceutical compositions and methods of use are disclosed as useful for treating dyslipidemia and related diseases.

Abstract: The present invention relates to novel, non-secosteroidal, phenyl-benzothiophene compounds with vitamin D receptor (VDR) modulating activity that are less hypercalcemic than 1?,25 dihydroxy vitamin D3. These compounds are useful for treating bone disease and psoriasis.

Abstract: The present invention relates to novel, non-secosteroidal, phenyl-benzoxazole compounds of Formula (I) wherein the variables R, R?, RP, RP3, LP1, LP2, ZP, RB, RB?, LXB and ZXB are as hereinafter defined, their preparation, pharmaceutical compositions, and methods of use.

Abstract: The present invention relates to novel, non-secosteroidal, phenyl-benzothiophene compounds with vitamin D receptor (VDR) modulating activity that are less hypercalcemic than 1?,25 dihydroxy vitamin D3. These compounds are useful for treating bone disease and psoriasis.

Abstract: The present invention relates to novel, non-secosteroidal, phenyl-benzofuran compounds with vitamin D receptor (VDR) modulating activity that are less hypercalcemic than 1?,25 dihydroxy vitamin D3. These compounds are useful for treating bone disease and psoriasis.