[PAN, Haiwei 潘海为, ZHOU, Xinyue 周鑫玥, ZHANG, Kejia 张可佳, CAI, Chengtao 蔡成涛, WANG, Wei 王巍, WANG, Yi 王一, WANG, Xiaofang 王小芳, CHEN, Zhengping 陈征平, BI, Xiaoyan 毕晓燕, LIU, Zechao 刘泽超, SHEN, Linshan 申林山, SONG, Hongtao 宋洪涛, WANG, Xingmei 王兴梅, WANG, Ye 王也, YANG, Dongmei 杨东梅, ZHANG, Liguo 张立国] 145 Nantong Street, Nangang District 中国黑龙江省哈尔滨市南岗区南通大街145号, Heilongjiang 150001Harbin, Heilongjiang 150001;A129, 4th Floor, Building 4, Baitai Industrial Park, Yazhou Bay Science And Technology City, Yazhou District 中国海南省三亚市崖州区崖州湾科技城百泰产业园四号楼四楼A129区, Hainan 572024Sanya, Hainan 572024 Disclosed in the present invention is a machine-learning-based management system for a virtual numerical-tank experiment. The system comprises: a data collection module, which is configured to acquire initial data of various scenarios in a virtual numerical-tank experiment, and randomly generate simulation data, wherein the simulation data is data to be processed of various hydrodynamic phenomenon scenarios, including water movements, water level changes and waves, in a real hydrological environment; a central storage module, which is connected to the data collection module and is configured to process the simulation data after receiving a storage task sent by the data collection module, and perform bottom-layer storage on the processed simulation data; and an automated storage module, which is connected to the central storage module and is configured to automatically adjust a storage resource configuration according to a predictive-analysis result, and maintain data consistency of a plurality of copies. The present invention increases the storage capacity of a system for experiment data, improves the accuracy and efficiency of an experiment, and realizes automated management of a virtual numerical-tank experiment. Disclosed in the present invention is a machine-learning-based management system for a virtual numerical-tank experiment. The system comprises: a data collection module, which is configured to acquire initial data of various scenarios in a virtual numerical-tank experiment, and randomly generate simulation data, wherein the simulation data is data to be processed of various hydrodynamic phenomenon scenarios, including water movements, water level changes and waves, in a real hydrological environment; a central storage module, which is connected to the data collection module and is configured to process the simulation data after receiving a storage task sent by the data collection module, and perform bottom-layer storage on the processed simulation data; and an automated storage module, which is connected to the central storage module and is configured to automatically adjust a storage resource configuration according to a predictive-analysis result, and maintain data consistency of a plurality of copies. The present invention increases the storage capacity of a system for experiment data, improves the accuracy and efficiency of an experiment, and realizes automated management of a virtual numerical-tank experiment.

[LI, Xiaozhao 李小钊, LIU, Shibai 刘世柏, ZHAO, Fangshuai 赵芳帅, XUE, Congjun 薛从军, WANG, Xiaohuan 王小焕, WANG, Lili 王丽丽, LI, Renfeng 李仁峰, LIU, Chang 刘畅, JIA, Yanheng 贾延恒, LI, Kun 李锟, LIU, Xinyue 刘心悦, BAI, Lina 白丽娜, SUN, Yu 孙宇, QI, Dacui 齐大翠, GU, Fengjuan 谷凤娟, QI, Chunwei 亓春伟, CHAI, Na 柴娜, ZHENG, Lele 郑乐乐, LIU, Jingjing 刘晶晶, JIAO, Shumin 焦淑敏, WANG, Qian 王茜, QI, Chan 齐婵, YAO, Fengjuan 姚锋娟, YAO, Xinwei 姚新伟, LV, Peipei 吕佩佩, WANG, Yongxu 王永旭, SU, Wenhao 苏文豪, PU, Liangjing 蒲良静, CHEN, Yu 陈昱] No.12, Hongtai Road, Huaming Street, Dongli District 中国天津市东丽区华明街弘泰道12号, Tianjin 300162Tianjin 300162;No.22, Nanhuan East Road 中国河南省平顶山市南环东路22号, Henan 467000Pingdingshan, Henan 467000 Disclosed in the present invention is a high-voltage vacuum relay. An upper sleeve is arranged at an upper end of a vacuum chamber, and a magnetic driving mechanism is arranged in the upper sleeve; a moving contact is arranged at a lower end portion of a sliding component in the magnetic driving mechanism that extends into the vacuum chamber in a sealed manner; and a static contact aligned with the moving contact is arranged in the vacuum chamber, and the static contact is connected to a terminal arranged on the surface of the vacuum chamber. In the present invention, the insulation performance is good, and there is no oxidation problem; an electric arc in a vacuum is easily diffused, thereby not easily causing the wear of a contact; the present invention also has the advantages of a high dielectric strength, a large rated bearing current, a large conversion current, a small contact resistance of the contact, stable operation, etc.; by means of the mutual cooperation of the structures, the problem of ablation of moving and static contacts caused by the electric arc is solved, and the problem of a traditional relay having a relatively low voltage resistance level is solved; and the present invention relates to a relay device which has a relatively small volume and is safe in terms of use, and the requirements of a high voltage level for a charging pile and a 5G base station are met.

[DAN WANG, CHAO ZHANG, CHUNLEI WANG, HANMIAO LIU, YE FENG, LIHUI GAO, BAOYUAN ZHOU, YAJIAN LI, XINBING WANG, XINYUE ZHAO, WEI ZHENG, KUAN PEI, QI WANG, TANA, XINGTIAN JIA] CN The invention relates to an intercropping cultivation method for improving the feeding quality of forage rape and silage maize, which belongs to the field of forage crop planting technology, the intercropping cultivation method for improving the feeding quality of forage rape and silage maize comprises the following steps: S1, conducting the subsoiling and soil preparation, pouring the base fertilizer; S2, planting silage maize and forage rape at the same time, and the row ratio of silage maize to forage rape is 2:4; S3, pouring amide nitrogen fertilizer at the early flowering stage of forage rape; S4, harvesting forage rape plants and silage maize plants. By adjusting the type of base fertilizer poured in intercropping, selecting the co-sowing time of intercropping of forage rape and silage maize, adjusting the intercropping spacing of forage rape and silage maize, and determining the optimal harvest time, the invention improves the intercropping method for forage crops in the Northwestern Hebei agro-pastoral ecotone, and it also improves the silage quality of cultivated forage rape and silage maize.

[CAI, Muyi 蔡木易, GU, Ruizeng 谷瑞增, LU, Jun 鲁军, LING, Kong 凌空, LU, Lu 陆路, ZHOU, Ming 周明, CUI, Xinyue 崔欣悦, PAN, Xingchang 潘兴昌, DONG, Zhe 董哲, MA, Yong 马勇, XU, Yaguang 徐亚光, MA, Yongqing 马永庆, CHEN, Liang 陈亮, WEI, Ying 魏颖, ZHANG, Haixin 张海欣, LIU, Yan 刘艳, CAO, Kelu 曹珂璐, WANG, Jing 王憬, LI, Guoming 李国明, WANG, Yuchen 王雨辰, WANG, Yuqing 王雨晴, BI, Yuan 毕园, QIN, Xiuyuan 秦修远] Bldg. 6, No. 24 中国北京市朝阳区酒仙桥中路24号院6号楼, Beijing 100015Jiuxianqiao Middle Road, Chaoyang DistrictBeijing 100015 Provided are a Lactobacillus paracasei with the deposit number CGMCC No. 14813 and the use thereof. The Lactobacillus paracasei can be used for increasing the amount of organic acids in the raw material. The Lactobacillus paracasei can also be used for the fermentation of the raw material, thereby increasing the content of organic acids in fermented products, wherein the raw material can be selected from at least one type of fruit. Provided are a Lactobacillus paracasei with the deposit number CGMCC No. 14813 and the use

[Ling YANG, Manting WANG, Sijing WANG, Ji LIU, Feifei TANG, Xiaoben WANG, Man ZHANG, Zaiyou RUAN, Yuna HU, Zihao CHEN, Siqin LIU, Chen ZHONG, Suyao ZHANG, Yichao WU, Changhua HE, Zenan LI, Yibin CHEN, Jialuo ZHANG, Ping LI, Xinyue GONG, Jialong ZHAO, Fanglu ZHONG, Pingfei FU, Yingzhao SUN, Syenny NA, Qi FAN, Yehua LYU, Jiacheng LIU, Lin ZHOU, Fukang HONG, Xiangzeng MENG, Qian Li, Qi ZHAO, Hui Li] CN Beijing Provided are an interaction method and apparatus in a live streaming room, and a device and a storage medium. The method comprises: in response to a trigger operation for a preset duet entry on a live streaming room page, jumping from the live streaming room page to a camera capture page, wherein a host portrait cutout corresponding to the live streaming room page is displayed on the camera capture page and a capture control is provided on the camera capture page acquiring multimedia information captured by a camera, in response to a trigger operation for the capture control on the camera capture page, wherein the multimedia information comprises an image or a video; and synthesizing the multimedia information with the host portrait cutout to obtain a duet multimedia product.

[Ling YANG, Manting WANG, Sijing WANG, Ji LIU, Feifei TANG, Xiaoben WANG, Man ZHANG, Zaiyou RUAN, Yuna HU, Zihao CHEN, Siqin LIU, Chen ZHONG, Suyao ZHANG, Yichao WU, Changhua HE, Zenan LI, Yibin CHEN, Jialuo ZHANG, Ping LI, Xinyue GONG, Jialong ZHAO, Fanglu ZHONG, Lin ZHOU, Fukang HONG, Xiangzeng MENG, Qian LI] CN Beijing Provided are an interaction method and apparatus in a live streaming room, a device, and a storage medium. The method comprises: in response to a trigger operation for a preset drawing entry on a live streaming room page, jumping to a graphic drawing page from the live streaming room page, a drawing trajectory set for a preset object being displayed on the graphical drawing page; when a drawing stroke on the graphic drawing page is received, matching the drawing stroke with the drawing trajectory; and if it is determined that the drawing stroke is successfully matched with the drawing trajectory, displaying prompt information about successful participation in a preset activity, the preset activity and the preset drawing entry having a correspondence.

[Muyi Cai, Ruizeng Gu, Jun Lu, Wenying Liu, Xiuyuan Qin, Xingchang Pan, Zhe Dong, Yong Ma, Yaguang Xu, Yongqing Ma, Liang Chen, Lu Lu, Haixin Zhang, Ying Wei, Yan Liu, Kelu Cao, Jing Wang, Guoming Li, Ming Zhou, Yuchen Wang, Yuqing Wang, Kong Ling, Yuan Bi, Xinyue Cui] CN Beijing A selenium-chelating pea oligopeptide, a preparation method thereof and use thereof. After the selenium-chelating pea oligopeptide is subjected to digestion treatment in at least one of following three ways, a change rate of selenium content not more than 3% with respect to the selenium content before the digestion treatment: hydrolyzing for 4 hours by a pepsin at a pH value of 2 and a temperature of 37° C.; hydrolyzing for 6 hours by a trypsin at a pH value of 7.5 and a temperature of 37° C.; maintaining the temperature constant at 37° C., firstly hydrolyzing for 4 hours by the pepsin at a pH value of 2, and then continuing to hydrolyze for 6 hours by a trypsin at a pH value of 6.8. The preparation method thereof includes mixing and reacting an aqueous solution of pea oligopeptide and sodium selenite, and then being subjected to alcohol precipitation and drying.

[YANG, Ling 杨灵, WANG, Manting 王曼婷, WANG, Sijing 汪思静, LIU, Ji 刘继, TANG, Feifei 汤菲菲, WANG, Xiaoben 王小犇, ZHANG, Man 张蔓, RUAN, Zaiyou 阮在游, HU, Yuna 胡玉娜, CHEN, Zihao 陈子豪, LIU, Siqin 刘思勤, ZHONG, Chen 钟晨, ZHANG, Suyao 章苏尧, WU, Yichao 吴亿超, HE, Changhua 何昌桦, LI, Zenan 李泽南, CHEN, Yibin 陈一斌, ZHANG, Jialuo 张家珞, LI, Ping 李平, GONG, Xinyue 龚昕悦, ZHAO, Jialong 赵嘉龙, ZHONG, Fanglu 钟芳炉, ZHOU, Lin 周林, HONG, Fukang 洪福康, MENG, Xiangzeng 孟祥增, LI, Qian 李茜] 0207, 2/F, Building 4 中国北京市海淀区紫金数码园4号楼2层0207, Beijing 100190Zijin Digital Park, Haidian DistrictBeijing 100190 The present disclosure provides an interaction method and apparatus in a live streaming room, a device, and a storage medium. The method comprises: first, in response to a trigger operation for a preset drawing entry on a live streaming room page, jumping to a graphic drawing page from the live streaming room page, a drawing trajectory set for a preset object being displayed on the graphical drawing page; when a drawing stroke on the graphic drawing page is received, matching the drawing stroke with the drawing trajectory; and if it is determined that the drawing stroke is successfully matched with the drawing trajectory, displaying prompt information about successful participation in a preset activity, the preset activity and the preset drawing entry having a correspondence. In embodiments of the present disclosure, a drawing function is set in the live streaming room, and participation in the preset activity is triggered by means of the drawing stroke, thereby enriching interaction functions in the live streaming room, and improving experience of users in the live streaming room.

[MUYI CAI, Ruizeng GU, Jun LU, WENYING LIU, XIUYUAN QIN, XINGCHANG PAN, ZHE DONG, YONG MA, YAGUANG XU, YONGQING MA, LIANG CHEN, LU LU, HAIXIN ZHANG, YING WEI, YAN LIU, KELU CAO, JING WANG, GUOMING LI, MING ZHOU, YUCHEN WANG, YUQING WANG, KONG LING, YUAN BI, XINYUE CUI] CN BEIJING A selenium-chelating pea oligopeptide, a preparation method thereof and use thereof. After the selenium-chelating pea oligopeptide is subjected to digestion treatment in at least one of following three ways, a change rate of selenium content not more than 3% with respect to the selenium content before the digestion treatment: hydrolyzing for 4 hours by a pepsin at a pH value of 2 and a temperature of 37° C.; hydrolyzing for 6 hours by a trypsin at a pH value of 7.5 and a temperature of 37° C.; maintaining the temperature constant at 37° C., firstly hydrolyzing for 4 hours by the pepsin at a pH value of 2, and then continuing to hydrolyze for 6 hours by a trypsin at a pH value of 6.8. The preparation method thereof includes mixing and reacting an aqueous solution of pea oligopeptide and sodium selenite, and then being subjected to alcohol precipitation and drying.

[CAI, Muyi 蔡木易, GU, Ruizeng 谷瑞增, LU, Jun 鲁军, LIU, Wenying 刘文颖, QIN, Xiuyuan 秦修远, PAN, Xingchang 潘兴昌, DONG, Zhe 董哲, MA, Yong 马勇, XU, Yaguang 徐亚光, MA, Yongqing 马永庆, CHEN, Liang 陈亮, LU, Lu 陆路, ZHANG, Haixin 张海欣, WEI, Ying 魏颖, LIU, Yan 刘艳, CAO, Kelu 曹珂璐, WANG, Jing 王憬, LI, Guoming 李国明, ZHOU, Ming 周明, WANG, Yuchen 王雨辰, WANG, Yuqing 王雨晴, LING, Kong 凌空, BI, Yuan 毕园, CUI, Xinyue 崔欣悦] Bldg. 6, No. 24, Jiuxianqiao Middle Road, Chaoyang District 中国北京市朝阳区酒仙桥中路24号院6号楼, Beijing 100015Beijing 100015 Pea oligopeptide selenium, a preparation method therefor, and application thereof. The pea oligopeptide selenium is subjected to digestion treatment in at least one of the following three modes, the selenium content changing by not more than 3% with respect to that before the digestion treatment: carrying out hydrolyzation for 4 hours by using pepsin at a pH value of 2 and a temperatures of 37°Ϲ; carrying out hydrolyzation for 6 hours by using trypsin at a pH value of 7.5 and a temperatures of 37°Ϲ; maintaining a constant temperature of 37°Ϲ, first carrying out hydrolyzation for 4 hours by using pepsin at a pH value of 2, and then continuing hydrolyzation for 6 hours by using trypsin at a pH value of 6.8. The preparation method for the pea oligopeptide selenium comprises mixing an aqueous solution of pea oligopeptide with sodium selenite for reaction, and carrying out ethanol precipitation and drying.