Abstract: The present disclosure provides a method for preparing lithium iron phosphate from ferric hydroxyphosphate, including: purifying ferrous sulfate to form a ferrous sulfate solution, adding hydrogen peroxide, phosphoric acid, an ammonium dihydrogen phosphate solution and ammonia water into the ferrous sulfate solution and then reacting to form a mixed slurry, holding the mixed slurry at a temperature for a period of time, and then washing with water and subjecting to press filtration to form ferric hydroxyphosphate precursors with different iron-phosphorus ratios; then flash drying, sintering at a high temperature, and pulverizing to obtain ferric hydroxyphosphate precursors with different iron-phosphorus ratios and different specific surface areas.

Abstract: Disclosed are a photovoltaic shutdown circuit and a photovoltaic system. The photovoltaic shutdown circuit comprises a shutdown power line, a signal receiving module, a signal processing module, and a controllable switch module. The signal processing module comprises a signal modulation unit and a threshold comparison unit. A switch end of the controllable switch module is connected in series to the shutdown power line. The signal receiving module is connected to the shutdown power line for receiving a first signal with a controlling signal; the signal modulation unit is for reverting the controlling signal; the threshold comparison unit is connected to the signal modulation unit to receive the reverted controlling signal and compare the reverted controlling signal with a set threshold to output a driving signal. The controllable switch module is connected to the threshold comparison unit to receive the driving signal and control an on/off of the controllable switch module.

Abstract: The invention relates to a perforating device for thermoplastic plates, which relates to the technical field of a plate processing device. The device comprises an electromagnetic chuck, one side of the electromagnetic chuck is connected with the motion part, the other side of the electromagnetic chuck is connected with a mounting plate and a spike. When the electromagnetic chuck is powered on, the spike is attracted below the mounting plate by the electromagnetic force. A clamping part is arranged below the mounting plate, the thermoplastic plate is fixed by the clamping part, and a heating system is also provided to heat the thermoplastic plate. As the electromagnetic chuck is powered on or off, the spike can be attracted in or separated from the mounting plate, respectively. Therefore, the perforating device can make a new plate be pierced during the cooling and curing process of the perforated plate.

Abstract: The invention relates to a perforating device for thermoplastic plates, which relates to the technical field of a plate processing device. The device comprises an electromagnetic chuck, one side of the electromagnetic chuck is connected with the motion part, the other side of the electromagnetic chuck is connected with a mounting plate and a spike. When the electromagnetic chuck is powered on, the spike is attracted below the mounting plate by the electromagnetic force. A clamping part is arranged below the mounting plate, the thermoplastic plate is fixed by the clamping part, and a heating system is also provided to heat the thermoplastic plate. As the electromagnetic chuck is powered on or off, the spike can be attracted in or separated from the mounting plate, respectively. Therefore, the perforating device can make a new plate be pierced during the cooling and curing process of the perforated plate.

Abstract: A system for treatment and/or psychology intervention of attention deficit disorders in a user in need thereof. The system uses a head mounted display equipped with an eye tracking device. The system is configured to display a scene that includes a principal object and at least one secondary object, then use the eye tracking device to determine whether the user's gaze is directed to one of the objects. If the user's gaze is directed to one of the secondary objects beyond a threshold criterion, that secondary object is removed from the scene. If the user's gaze is directed to the principal object beyond a threshold criterion, a previously removed secondary object is reintroduced into the scene. The principal object is a desired object of the user's attention, while the secondary object(s) may be potentially or known distracting objects. Corresponding software and methods are also disclosed.

Abstract: A system for treatment and/or psychology intervention of attention deficit disorders in a user in need thereof. The system uses a head mounted display equipped with an eye tracking device. The system is configured to display a scene that includes a principal object and at least one secondary object, then use the eye tracking device to determine whether the user's gaze is directed to one of the objects. If the user's gaze is directed to one of the secondary objects beyond a threshold criterion, that secondary object is removed from the scene. If the user's gaze is directed to the principal object beyond a threshold criterion, a previously removed secondary object is reintroduced into the scene. The principal object is a desired object of the user's attention, while the secondary object(s) may be potentially or known distracting objects. Corresponding software and methods are also disclosed.

Abstract: A system for treatment and/or psychology intervention of attention deficit disorders in a user in need thereof. The system uses a head mounted display equipped with an eye tracking device. The system is configured to display a scene that includes a principal object and at least one secondary object, then use the eye tracking device to determine whether the user's gaze is directed to one of the objects. If the user's gaze is directed to one of the secondary objects beyond a threshold criterion, that secondary object is removed from the scene. If the user's gaze is directed to the principal object beyond a threshold criterion, a previously removed secondary object is reintroduced into the scene. The principal object is a desired object of the user's attention, while the secondary object(s) may be potentially or known distracting objects. Corresponding software and methods are also disclosed.

Abstract: The invention provides chlorogenic acid derivatives of Formula (I) that are capable of inhibiting the growth of fungal cells and are useful as anti-fungal agents. The invention further provides the methods of inhibiting the growth of fungal cells and methods of treating a fungal infection in an animal by administering to the animal an effective amount of a compound of Formula I, either alone or in combination with another anti-fungal agent.

Abstract: The present invention relates to a reduced-hangover alcoholic beverage including alcohol and turmeric. The invention also relates to the use of turmeric in the manufacture of a reduced-hangover alcoholic beverage. Also, the present invention relates to a method of reducing hangover due to consumption of an alcoholic beverage. The method includes adding turmeric to the alcoholic beverage prior to consumption of the alcoholic beverage.

Abstract: One of the aspects of the present invention is directed to tetramic acid derivatives useful in treating or preventing bacterial diseases, especially diseases caused by gram-positive pathogens resistant to antibiotics of the prior art. Within the scope of the present invention are pharmaceutical compositions containing at least one of the tetramic acid derivatives of the invention as the active ingredient, methods of treating and/or preventing a bacterial disease by administering at least one of the tetramic acid derivatives of the invention, and the use of the tetramic acid derivatives of the invention in the treatment and/or prevention of a bacterial disease. Preferably, the tetramic acid derivative of the invention is a compound of formula IV shown below.

Abstract: The invention relates to compounds of the formulas ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 independently are hydrogen or lower alkyl, and the dotted ( . . . ) line is an optional double bond, and their pharmaceutically acceptable acid addition salts. The compounds of formulas I, II and III possess marked anticholinesterase activity and are useful as analeptic agents and as agents for the treatment of senile dementia and myasthenia gravis.