Zhejiang University

Alibaba Group Holding Limited

Hangzhou Zanjiang Network Technology Co., Ltd.

Qi Li

Donglian Qi

Yunfeng Yan

Gang Chen

Guoping Zhang

Bingxiao Mei

Zezhou Wang

Rui Han

Dezhi Wu

Liuhui Kuang

Haoyuan Jin

An-mediated genetic transformation method for sea barleygrass is provided. The method includes: S1, selecting immature embryo materials of sea barleygrass with immature embryos each having a length in a range of 0.5-1.0, sterilizing them with alcohol and sodium hypochlorite to obtain sterilized seeds; S2, separating the immature embryos, crosscutting the immature embryos, and inducing callus generation and proliferation; S3, adjusting pre-culture time andinfection time of calli based on the callus generation andgrowth to thereby prevent excessiveliquid; and S4, performing adventitious bud induction culture and rooting induction culture under a shielding-formed low-light environment to obtain tissue culture plantlets. It relates to a tissue culture method for immature embryos of sea barleygrass with high green spot differentiation and plantlet formation rates, which is not limited by materials. A transformation and regeneration system has high genetic transformation and mutation efficiency.

-mediated genetic transformation method for sea barleygrass

A multi-object tracking method based on authenticity hierarchizing and occlusion recovery relates to the technical field of multi-object tracking for security management and control of complex scenes. The method includes the following steps: image acquisition, object detection, authenticity hierarchizing, hierarchical association and outputting tracks. The multi-object tracking method is helpful to solve the long-term puzzling occlusion problem in the field of multi-object tracking, the constructed new algorithm framework can achieve an advanced tracking performance, improve the adaptability of the method to complex environments, and adapt to more difficult video surveillance security control tasks.

Multi-object tracking method based on authenticity hierarchizing and occlusion recovery

Refrigerator door

A self-reporting mobile device can allow a user to local the mobile device, regardless of whether the mobile device is reachable via a wireless or wired network. During operation, the mobile device can read one or more local data sources to obtain contextual information corresponding to a state of the mobile device. The mobile device can analyze the contextual information based on a condition for capturing location-identifying information for the mobile computing device to determine whether the contextual information satisfies the condition. If so, the mobile device may collect location-identifying information from one or more sensors of the mobile device, and can upload the location-identifying information to a server. Making this location-identifying information available on the server can facilitate a user to locate the mobile computing device.

Method, apparatus, and mobile terminal for collecting location information

Growing community of inventors

Hangzhou, China

Qi Li