Abstract: The disclosed is a method for forecasting a demand load during navigation of a ship based on working condition classification. The method of the disclosure comprises: training historical data values by employing a least squares support vector machine to obtain a classification plane, classifying working conditions during the navigation into a fast-changing working condition and a stable working condition, and determining in real time a working condition type of the ship in an online stage. A method for forecasting a demand load by means of a Markov chain is employed for the stable working condition, and a method for forecasting a demand load by means of a radial basis function neural network optimized by a genetic algorithm is employed for the fast-changing working condition. A desirable forecasting effect can be achieved by selecting forecast models suitable for either type of working condition.

Abstract: The present disclosure relates to a method and an apparatus for clock distribution in network. The method performed by a first clock distribution apparatus may comprise: determining (S101) whether the first clock distribution apparatus is in a first state; generating (S102) information indicating a remaining time duration for the first clock distribution apparatus keeping a preconfigured accuracy, when the first clock distribution apparatus is in the first state, and transmitting (S103) the information indicating the remaining time duration. According to embodiments of the present disclosure, the downstream apparatus may obtain more information for selecting an upstream clock source.

Abstract: A train having a protection device with self-adaptive crashworthiness is disclosed, which relates to the technical field of safety protection of trains. The train includes multiple vehicles, a head vehicle is located at the head end of the train, and a head vehicle energy absorbing coupler mechanism is mounted at the front end of the head vehicle, each two adjacent vehicles are connected to each other by a middle vehicle energy absorbing coupler mechanism. An image acquisition mechanism and a radar detector are mounted at the head vehicle for monitoring whether there is an obstacle ahead the train, measuring distance and collision speed between the train and the obstacle, and for transmitting measured data to a processing center of the train, the processing center optimizes and adjusts impact force at the head vehicle energy absorbing coupler mechanism and the middle vehicle energy absorbing coupler mechanisms based on a collision situation.

Abstract: The present disclosure relates to novel two-dimensional halide perovskite materials, and the method of making and using the two-dimensional halide perovskite materials.

Abstract: The present disclosure relates to novel two-dimensional halide perovskite materials, and the method of making and using the two-dimensional halide perovskite materials.

Abstract: The present disclosure relates to novel thiophene monoamine based organic-inorganic hybrid perovskites, and the method of making and using the novel organic-inorganic hybrid perovskites.

Abstract: The present disclosure relates to novel thiophene monoamine based organic-inorganic hybrid perovskites, and the method of making and using the novel organic-inorganic hybrid perovskites.

Abstract: A positioning assembly for securing top box of window blinds or shades includes a positioning member which includes multiple hooking members, guide posts and two guide members. An adjustment member includes multiple lugs extending from a top thereof and each lug has an insertion hole. An extension splits from the adjusting member so as to insert into the slot of the positioning member. An engaging portion extends from a bottom of the adjustment member. Multiple springs are mounted to the guide posts and biased between the lugs and the guide posts which are inserted into the insertion holes of the lugs. The top box having an open side which is defined between a first lip and a second lip, wherein the first lip is hooked to one of the hooking members and the second lip is engaged with the engaging portion of the adjustment member.

Abstract: Novel methods of synthesizing heteroatom-containing chiral porphyrins and chiral metalloporphyrins and the novel chiral porphyrins and chiral metalloporphyrins themselves are disclosed. Metal complexes of the chiral porphyrins are prepared in high yields and shown to be active catalysts for highly enantioselective and diastereoselective cyclopropanation, aziridination, and epoxidation of alkenes under a practical one-pot protocol.

Abstract: Novel methods of synthesizing heteroatom-containing chiral porphyrins and chiral metalloporphyrins and the novel chiral porphyrins and chiral metalloporphyrins themselves are disclosed. Metal complexes of the chiral porphyrins are prepared in high yields and shown to be active catalysts for highly enantioselective and diastereoselective cyclopropanation, aziridination, and epoxidation of alkenes under a practical one-pot protocol.