Abstract: A semiconductor device includes a substrate, a first dielectric layer, a channel layer and source/drain electrodes. The first dielectric layer is over the substrate. The channel layer is over the first dielectric layer. Source/drain electrodes are over the channel layer. The source/drain electrodes comprise a 2D semimetal material. The channel layer comprises a 2D semiconductor material interfacing the 2D semimetal material of the source/drain electrodes.

Abstract: A retractable rack includes a connecting part, a holding mount, a first support element, a second support element and a positioning mechanism. The connecting part may detachably attach to a stroller frame. The second support element is retractably mounted on the opposite side of the holding mount and capable of selectively locking in a first position and a second position relative to the first support element. The positioning mechanism is mounted in the holding mount for locking the second support element in the positions. When the second support element is locked in the first position, the retractable rack is capable of supporting and connecting a car seat with a first size, and when the second support element is locked in the second position, the retractable rack is capable of supporting another car seat with a second size to the stroller frame.

Abstract: A retractable rack includes a connecting part, a holding mount, a first support element, a second support element and a positioning mechanism. The connecting part may detachably attach to a stroller frame. The second support element is retractably mounted on the opposite side of the holding mount and capable of selectively locking in a first position and a second position relative to the first support element. The positioning mechanism is mounted in the holding mount for locking the second support element in the positions. When the second support element is locked in the first position, the retractable rack is capable of supporting and connecting a car seat with a first size, and when the second support element is locked in the second position, the retractable rack is capable of supporting another car seat with a second size to the stroller frame.

Abstract: The invention is to provide a generating method for transaction models with indicators for option. The method comprises: (S1) collecting a variety of indicators from the financial market; (S2) establishing an indicator pool saved with the indicators; (S3) distinguishing and classifying the indicators by Neural Network; (S4) determining a plurality of transaction models, the indicator of each transaction model in an independent classification; (S5) determining a date parameter for each indicator; (S6) deleting a part of the transaction models; (S7) determining a plurality of final transaction models from another transaction models; and (S8) determining a weight of each final transaction model.

Abstract: The invention is to provide a generating method for transaction models with indicators for option. The method comprises: (S1) collecting a variety of indicators from the financial market; (S2) establishing an indicator pool saved with the indicators; (S3) distinguishing and classifying the indicators by Neural Network; (S4) determining a plurality of transaction models, the indicator of each transaction model in an independent classification; (S5) determining a date parameter for each indicator; (S6) deleting a part of the transaction models; (S7) determining a plurality of final transaction models from another transaction models; and (S8) determining a weight of each final transaction model.

Abstract: The present invention offers a heart pulse detector. Two pairs of contact electrodes mounted on each handrail of treadmill separately. A electrocardiography heart pulse detector built in the control panel of the treadmill has input terminal which electrically connected to the contact electrodes. A front end circuit within the heart pulse detector receives the electrical cardio signals of a user from the input terminal and preprocesses the electrical cardio signals for later processing by the reminder functional blocks of the heart pulse detector. A hand touching detection circuit assembly in the heart pulse detector is also connected to the input terminal. The hand touching detection circuit sense the signals from the input terminal and send out hand on/off data for using to control the speed of the treadmill and to control the operation of the heart pulse detection.