Abstract: Provided are a precursor compound of a tetracyclic hydrocarbon and a preparation method thereof, and a tetracyclic hydrocarbon and a preparation method and use thereof. The precursor compound of the tetracyclic hydrocarbon with a structure shown in formula I has a polycyclic structure. The precursor compound is subjected to hydrodeoxygenation so as to be prepared into the tetracyclic hydrocarbon with a structure shown in formula II that has a high density (0.986 g/cm3), a high calorific value (41.14 MJ/L), and a low freezing point (less than ?60° C.).

Abstract: Provided are a precursor compound of a tetracyclic hydrocarbon and a preparation method thereof, and a tetracyclic hydrocarbon and a preparation method and use thereof. The precursor compound of the tetracyclic hydrocarbon with a structure shown in formula I has a polycyclic structure. The precursor compound is subjected to hydrodeoxygenation so as to be prepared into the tetracyclic hydrocarbon with a structure shown in formula II that has a high density (0.986 g/cm3), a high calorific value (41.14 MJ/L), and a low freezing point (less than ?60° C.).

Abstract: The present disclosure provides a low-molecular mass organic gellant and a preparation method and use thereof, belonging to the technical field of gelled fuels. The low-molecular mass organic gellant has a cyclopropane structure. The cyclopropane structure belongs to a high-tension structure, which endows the gellant with excellent gel properties; in addition, the high-tension cyclopropane structure is also capable of greatly improving a combustion performance of the gellant, shortening an ignition delay time of the fuel, and promoting combustion. Moreover, multiple hydroxyl groups contained in the low-molecular mass organic gellant is capable of effectively forming a gel through hydrogen bonding; therefore, the gellant has excellent gel and shear thinning properties for high-energy density fuel and energetic nanofluid fuel, with a critical gellant concentration of not greater than 1% when forming a stable gel.

Abstract: The present disclosure provides a low-molecular mass organic gellant and a preparation method and use thereof, belonging to the technical field of gelled fuels. The low-molecular mass organic gellant has a cyclopropane structure. The cyclopropane structure belongs to a high-tension structure, which endows the gellant with excellent gel properties; in addition, the high-tension cyclopropane structure is also capable of greatly improving a combustion performance of the gellant, shortening an ignition delay time of the fuel, and promoting combustion. Moreover, multiple hydroxyl groups contained in the low-molecular mass organic gellant is capable of effectively forming a gel through hydrogen bonding; therefore, the gellant has excellent gel and shear thinning properties for high-energy density fuel and energetic nanofluid fuel, with a critical gellant concentration of not greater than 1% when forming a stable gel.

Abstract: An ozone generator and an ozone generating method, where the ozone generator includes a dielectric substrate, a first electrode disposed on a first surface of the dielectric substrate, and a second electrode disposed on the dielectric substrate and corresponding to the first electrode. The first electrode comprises a plurality of first finger portions and a plurality of superficial structures integrally formed on the plurality of first finger portions.

Abstract: Provided is a p-type TiO2/n-type WO3 heterojunction catalyst and a preparation method and use thereof. The catalyst comprises p-type TiO2 and n-type WO3 supported on a surface of the p-type TiO2.

Abstract: A portable device and a method using an accelerated network search architecture are provided. When a portable media component is connected to a client device, the portable media component outputs an identification signal. After the identification signal is successfully identified by a server, the server collects an agent dataset described in a high-level language from the client device through an accelerated network search platform. The server looks up a dataset that has characteristics similar to the agent dataset from a computing resource through the accelerated network search platform to output a candidate model. A client program dynamically updates and outputs performance data to the server according to actual performance of the client device executing the candidate model. The server modifies the candidate model according to the performance data multiple times, so as to train an optimized model for the client device to use.

Abstract: The present disclosure relates to the field of the catalytic technologies, and provides a p-type TiO2/n-type WO3 heterojunction catalyst and its preparation and use in photochemical synthesis of fuels. The catalyst comprises p-type TiO2 and n-type WO3 supported on a surface of the p-type TiO2. The disclosure proposes to support n-type WO3 onto a surface of p-type TiO2. The catalyst has high catalytic efficiency, and is particularly suitable for use in photocatalytic processes for synthesizing fuels.

Abstract: The application provides a temperature increasing device and a temperature increasing method. The temperature increasing device is arranged on a motherboard including at least one system element. The temperature increasing device includes a power supply module and a controller After the power supply module is triggered, the power supply module outputs an enable signal to the system element and the controller, the controller detects whether the system element operates according to a preset power-on action, if the controller determines that the system element does not operate according to the preset power-on action, the controller outputs an electric signal to enable the temperature of the system element to increase, and when the temperature of the system element is increased to an extent that the controller determines that the system element is capable of operating according to the preset power-on action, the controller stops outputting the electric signal.

Abstract: The present invention provides a method for treating human cancer, which comprises predicting the sensitivity of tumor cells or tissues in a cancer patient to DNA damage therapy; and administering DNA damage therapy to the cancer patient. The invention also relates to kits to perform the method.

Abstract: A communication method for a water pump includes detecting whether the water pump receives connection data transmitted by a first control system after the water pump is powered on. The communication method also includes determining a target communication mode of the water pump based on the connection data, in response to a detection that the water pump receives the connection data and that a communication mode of the first control system is the same as a current communication mode of the water pump. The communication method further includes communicating with a second control system indicated by the connection data based on the target communication mode.

Abstract: A process for preparing a fused-ring alkane fuel, wherein the fused-ring alkane fuel has the following structure: wherein n is 1 or 2; R1, R2, R3, R4 and R5 are H or —CH3 or —CH2CH3; the fused-ring alkane fuel has a density of greater than 0.870 g/cm3, a freezing point of not higher than ?50° C., and a net mass heat value of not less than 42.0 MJ/kg; the process for preparing a fused-ring alkane fuel, wherein the process includes steps of: (1) in a presence of ultraviolet light and a photocatalyst, a Diels-Alder cycloaddition reaction between a substituted or unsubstituted cyclic enone and a substituted or unsubstituted furan molecule occurs to produce a fuel precursor molecule: (2) the fuel precursor molecule obtained in the step (1) is subjected to hydrodeoxygenation to produce the fused-ring alkane fuel.

Abstract: A process for preparing a fused-ring alkane fuel, wherein the fused-ring alkane fuel has the following structure: wherein n is 1 or 2; R1, R2, R3, R4 and R5 are H or —CH3 or —CH2CH3; the fused-ring alkane fuel has a density of greater than 0.870 g/cm3, a freezing point of not higher than ?50° C., and a net mass heat value of not less than 42.0 MJ/kg; the process for preparing a fused-ring alkane fuel, wherein the process includes steps of: (1) in a presence of ultraviolet light and a photocatalyst, a Diels-Alder cycloaddition reaction between a substituted or unsubstituted cyclic enone and a substituted or unsubstituted furan molecule occurs to produce a fuel precursor molecule: (2) the fuel precursor molecule obtained in the step (1) is subjected to hydrodeoxygenation to produce the fused-ring alkane fuel.

Abstract: A process for preparation of a bicyclic fused-ring alkane. In the presence of a bifunctional solid catalyst, one or more cyclitols undergo a C—C coupling reaction with itself or each other at a temperature and in a nitrogen gas atmosphere, to produce a bicyclic alkane precursor mixture; then, the nitrogen gas is replaced by hydrogen gas, and the bicyclic alkane precursor mixture is hydrogenated or hydrodeoxygenated at a temperature and under a pressure, to produce the bicyclic fused-ring alkane. The proportion of the bicyclic fused-ring alkane in the product as prepared according to the process is not lower than 80 wt %.

Abstract: The application provides a temperature increasing device and a temperature increasing method. The temperature increasing device is arranged on a motherboard including at least one system element. The temperature increasing device includes a power supply module and a controller After the power supply module is triggered, the power supply module outputs an enable signal to the system element and the controller, the controller detects whether the system element operates according to a preset power-on action, if the controller determines that the system element does not operate according to the preset power-on action, the controller outputs an electric signal to enable the temperature of the system element to increase, and when the temperature of the system element is increased to an extent that the controller determines that the system element is capable of operating according to the preset power-on action, the controller stops outputting the electric signal.

Abstract: The present invention discloses a process for preparing perhydrofluorene or alkyl-substituted perhydrofluorene, comprising the steps of: (1) reacting a phenolic compound or an aromatic hydrocarbon compound or an aromatic ketone compound or an aromatic ether compound with a benzyl compound to carry out an alkylation reaction in the presence of a first catalyst, thereby to produce substituted or unsubstituted diphenyl methane, wherein the first catalyst is an acidic catalyst; and (2) reacting the substituted or unsubstituted diphenyl methane with hydrogen gas to carry out an hydrogenation reaction or a hydrodeoxygenation reaction, thereby to produce perhydrofluorene or alkyl-substituted perhydrofluorene, wherein the second catalyst is a physical mixture of a metal catalyst and an acidic catalyst or a metal catalyst loaded on an acidic catalyst.

Abstract: The present invention discloses a process for preparing perhydrofluorene or alkyl-substituted perhydrofluorene, comprising the steps of: (1) reacting a phenolic compound or an aromatic hydrocarbon compound or an aromatic ketone compound or an aromatic ether compound with a benzyl compound to carry out an alkylation reaction in the presence of a first catalyst, thereby to produce substituted or unsubstituted diphenyl methane, wherein the first catalyst is an acidic catalyst; and (2) reacting the substituted or unsubstituted diphenyl methane with hydrogen gas to carry out an hydrogenation reaction or a hydrodeoxygenation reaction, thereby to produce perhydrofluorene or alkyl-substituted perhydrofluorene, wherein the second catalyst is a physical mixture of a metal catalyst and an acidic catalyst or a metal catalyst loaded on an acidic catalyst.

Abstract: An electronic device and a multimedia control method thereof are provided. The electronic device has an image capturing unit and a detecting unit. The method includes following steps. When executing an image capturing operation for obtaining an image signal by the image capturing unit, a motion information of the electronic device and an environment information is simultaneously detected by the detecting unit. At least one effect control signal is generated according to the motion information and the environment information. The at least one effect control signal is outputted to at least one corresponding effect output device according to a timing of the image signal.

Abstract: An electronic device and a multimedia control method thereof are provided. The electronic device has an image capturing unit and a detecting unit. The method includes following steps. When executing an image capturing operation for obtaining an image signal by the image capturing unit, a motion information of the electronic device and an environment information is simultaneously detected by the detecting unit. At least one effect control signal is generated according to the motion information and the environment information. The at least one effect control signal is outputted to at least one corresponding effect output device according to a timing of the image signal.

Abstract: A mask box having a buckling structure includes a base, a cover and a plurality of buckling elements. The base is configured to support a mask and has a plurality of troughs. The cover covers the base and has a plurality of pivotal portions. The buckling elements are positioned to correspond to the troughs. Each buckling element includes an engaging block and an elastic arm connected to the pivotal portion. The engaging block moves away from the periphery of the cover when the engaging block is subjected to an external force. The engaging block is buckled into the trough via an elastic restoring force of the at least one elastic arm when the external force is removed. By this arrangement, the assembly of the buckling elements is simplified and its product cost is reduced. Further, the present invention conforms to the requirements for environmental protection.