[ZHANG, Wei 张威, ZHANG, Wei 张威, HU, Qingyuan 胡清源, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, WANG, Yingyuan 王英元, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, WANG, Yingyuan 王英元, FENG, Xiaomin 冯晓民, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, WANG, Yingyuan 王英元, FENG, Xiaomin 冯晓民, MA, Yanjun 马雁军, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, WANG, Yingyuan 王英元, FENG, Xiaomin 冯晓民, MA, Yanjun 马雁军, XING, Jun 邢军, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, WANG, Yingyuan 王英元, FENG, Xiaomin 冯晓民, MA, Yanjun 马雁军, XING, Jun 邢军, HOU, Hongwei 侯宏卫, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, WANG, Yingyuan 王英元, FENG, Xiaomin 冯晓民, MA, Yanjun 马雁军, XING, Jun 邢军, HOU, Hongwei 侯宏卫, LIU, Yang 刘洋, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, WANG, Yingyuan 王英元, FENG, Xiaomin 冯晓民, MA, Yanjun 马雁军, XING, Jun 邢军, HOU, Hongwei 侯宏卫, LIU, Yang 刘洋, WANG, Ying 王颖, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, WANG, Yingyuan 王英元, FENG, Xiaomin 冯晓民, MA, Yanjun 马雁军, XING, Jun 邢军, HOU, Hongwei 侯宏卫, LIU, Yang 刘洋, WANG, Ying 王颖, XIN, Baojun 辛宝珺, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, WANG, Yingyuan 王英元, FENG, Xiaomin 冯晓民, MA, Yanjun 马雁军, XING, Jun 邢军, HOU, Hongwei 侯宏卫, LIU, Yang 刘洋, WANG, Ying 王颖, XIN, Baojun 辛宝珺, ZHANG, Hongfei 张洪非, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, WANG, Yingyuan 王英元, FENG, Xiaomin 冯晓民, MA, Yanjun 马雁军, XING, Jun 邢军, HOU, Hongwei 侯宏卫, LIU, Yang 刘洋, WANG, Ying 王颖, XIN, Baojun 辛宝珺, ZHANG, Hongfei 张洪非, JIANG, Xingyi 姜兴益, ZHANG, Wei 张威, HU, Qingyuan 胡清源, LIU, Nan 刘楠, LUO, Anna 罗安娜, HE, Shengbao 何声宝, WANG, Yingyuan 王英元, FENG, Xiaomin 冯晓民, MA, Yanjun 马雁军, XING, Jun 邢军, HOU, Hongwei 侯宏卫, LIU, Yang 刘洋, WANG, Ying 王颖, XIN, Baojun 辛宝珺, ZHANG, Hongfei 张洪非, JIANG, Xingyi 姜兴益, YANG, Jin 杨进] No. 2 Fengyang Road, Hi-Tec Industries Development Zone 中国河南省郑州市高新技术产业开发区枫杨街2号, Henan 450001Zhengzhou, Henan 450001 The present invention provides a buffer system and a method of using the buffer system to measure total alkaloid in tobacco or tobacco products through continuous flow. The buffer system comprises a buffer solution A and a buffer solution B. The buffer solution A is prepared by the following steps: weighing 60.5 to 83.0 g, preferably 71.6 g, of disodium hydrogen phosphate and 10.1 to 20.2 g, preferably 15.2 g, of trisodium phosphate, placing the weighed substances into a beaker, dissolving the mixture with water, transferring the solution into a volumetric flask of 1 L, and then filling water into the volumetric flask until the water reaches the scale. The buffer solution B is prepared by the following steps: weighing 5.5 to 8.0 g, preferably 7.0 g, of p-aminobenzene sulfonic acid, 60.5 to 83.0 g, preferably 71.6 g, of disodium hydrogen phosphate, 5.0 to 7.0 g, preferably 6.2 g, of sodium dihydrogen phosphate, and 10.0 to 12.1 g, preferably 11.8 g, of sodium citrate, placing the weighed substances into a beaker, dissolving the mixture with water, transferring the solution into a volumetric flask of 1 L, and then filling water into the volumetric flask until the water reaches the scale.

[YANG, Jinzhou 杨锦舟, YANG, Jinzhou 杨锦舟, XIAO, Hongbing 肖红兵, YANG, Jinzhou 杨锦舟, XIAO, Hongbing 肖红兵, WU, Zhonghua 吴仲华, YANG, Jinzhou 杨锦舟, XIAO, Hongbing 肖红兵, WU, Zhonghua 吴仲华, ZHU, Jieran 朱杰然, YANG, Jinzhou 杨锦舟, XIAO, Hongbing 肖红兵, WU, Zhonghua 吴仲华, ZHU, Jieran 朱杰然, HAN, Laiju 韩来聚, YANG, Jinzhou 杨锦舟, XIAO, Hongbing 肖红兵, WU, Zhonghua 吴仲华, ZHU, Jieran 朱杰然, HAN, Laiju 韩来聚, LI, Zuohui 李作会, YANG, Jinzhou 杨锦舟, XIAO, Hongbing 肖红兵, WU, Zhonghua 吴仲华, ZHU, Jieran 朱杰然, HAN, Laiju 韩来聚, LI, Zuohui 李作会, ZHOU, Yanjun 周延军, YANG, Jinzhou 杨锦舟, XIAO, Hongbing 肖红兵, WU, Zhonghua 吴仲华, ZHU, Jieran 朱杰然, HAN, Laiju 韩来聚, LI, Zuohui 李作会, ZHOU, Yanjun 周延军, TANG, Zhijun 唐志军] Sun Haoyu 中国山东省东营市山东省东营市东营区北一路827号孙浩玉, Shandong 257027No.827 beiyi Road, dongying district, dongyingDongying, Shandong 257027 The present invention relates to a static push-type rotary directional device, comprising: a mandrel having a central through-channel, a circumferential groove being provided on the outside wall of said mandrel; an external sleeve provided in said groove and able to rotate independently; a clutch able to cut-off or to transmit power transmitted from the mandrel to the external sleeve. In the static push-type rotary directional device of the present invention, biasing force can be omitted from the hold, vertical, and horizontal sections without reducing the moment of inertia of the device or the amount of energy stored therein, thereby allowing for effective and stable drilling by the drill bit positioned downstream from the device.

[XIAO, Hongbing 肖红兵, XIAO, Hongbing 肖红兵, YANG, Jinzhou 杨锦舟, XIAO, Hongbing 肖红兵, YANG, Jinzhou 杨锦舟, HAN, Laiju 韩来聚, XIAO, Hongbing 肖红兵, YANG, Jinzhou 杨锦舟, HAN, Laiju 韩来聚, LI, Zuohui 李作会, XIAO, Hongbing 肖红兵, YANG, Jinzhou 杨锦舟, HAN, Laiju 韩来聚, LI, Zuohui 李作会, ZHANG, Haihua 张海花, XIAO, Hongbing 肖红兵, YANG, Jinzhou 杨锦舟, HAN, Laiju 韩来聚, LI, Zuohui 李作会, ZHANG, Haihua 张海花, TANG, Zhijun 唐志军, XIAO, Hongbing 肖红兵, YANG, Jinzhou 杨锦舟, HAN, Laiju 韩来聚, LI, Zuohui 李作会, ZHANG, Haihua 张海花, TANG, Zhijun 唐志军, ZHOU, Yanjun 周延军] SUN, Haoyu 中国山东省东营市东营区北一路827号孙浩玉, Shandong 257027No.827 Beiyi Road, Dongying DistrictDongying, Shandong 257027 A push-the-bit rotary steerable device (100), comprising: a mandrel (12) provided with a central passage (12a); an outer sleeve (14) connected outside the mandrel (12) in a rotating sleeving way; a plurality of swinging type wing ribs (17) circumferentially arranged in the outer wall of the outer sleeve (14) at intervals; an actuation mechanism (18), used for controlling each swinging type wing rib (17) to swing; a plurality of detectors (15) circumferentially arranged in the outer wall of the outer sleeve at intervals, the detectors (15) being structured to detect the distances between the detectors (15) and a well wall in real time; and a controller (16), structured to determine, according to the detected distances, whether the actuation mechanism is required to actuate the swinging type wing ribs (17) to swing. Also disclosed is a method for using the push-the-bit rotary steerable device. According to the push-the-bit rotary steerable device, expanding and reducing well sections can be timely detected by the real-time detection of the detectors, so that the rotary steerable device can be prevented from steering at the well sections, the steering of the rotary steerable device can be prevented from being deviated from a preset direction, and the well inclination and the azimuth of a drilled inclined well are further ensured.

[Chunlei Yang, Jinpeng Yang, Jun Zhou, Mei Yang, Yong Yang, Jun Yu, Zongping Li, Xiongfei Rao, Guangjiong Qin, Baoming Qiao, Ruoshi Bai, Yanjun Ma, Xianbao Deng, Wenzhang Qin, Kaixiao Fan, Candong Deng, Yongle Wei, Youlun Fan] CN CN,Wuhan The present disclosure discloses a tobacco leaf foliar spraying substance for reducing harmful ingredients in cheroot, a method for reducing carcinogenic components in flue-cured tobacco leaves and flue-cured tobacco shreds. The tobacco leaf foliar spraying substance contains a lotus leaf extract, the harmful chemical ingredients comprise N-nitrosonornicotine, 4-(N-methyl-nitrosamine)-1-(3-pyridinyl)-1-butanone, N-nitrosoanabasine and N-nitrosoanatabine. Foliar spraying is performed on a fertile field by using the lotus leaf extract before tobacco leaves are harvested and modulated, which not only significantly promotesagronomic characters and economic traits of tobacco and alleviates tobacco leaf browning but also effectively reduces harmful chemical ingredients unique to tobacco leaves, such as nitrosamine and nicotine.

[Chunlei Yang, Jinpeng Yang, Jun Zhou, Mei Yang, Yong Yang, Jun Yu, Zongping Li, Xiongfei Rao, Guangjiong Qin, Baoming Qiao, Ruoshi Bai, Yanjun Ma, Xianbao Deng, Wenzhang Qin, Kaixiao Fan, Candong Deng, Yongle Wei, Youlun Fan] CN Wuhan The present disclosure discloses a tobacco leaf foliar spraying substance for reducing harmful ingredients in cheroot, a method for reducing carcinogenic components in flue-cured tobacco leaves and flue-cured tobacco shreds. The tobacco leaf foliar spraying substance contains a lotus leaf extract, the harmful chemical ingredients comprise N-nitrosonornicotine, 4-(N-methyl-nitrosamine)-1-(3-pyridinyl)-1-butanone, N-nitrosoanabasine and N-nitrosoanatabine. Foliar spraying is performed on a fertile field by using the lotus leaf extract before tobacco leaves are harvested and modulated, which not only significantly promotesagronomic characters and economic traits of tobacco and alleviates tobacco leaf browning but also effectively reduces harmful chemical ingredients unique to tobacco leaves, such as nitrosamine and nicotine.

[YANG HONG, WEI QINGSHAN, MIAO ZHONGHUA, WU WENJIANG, LIU ZHIRU, LV YANJUN, CAO XUEFENG, HAN LEI, YAN JIQUAN, ZHENG MINGJUN, DUAN CHENGHUA, YANG SHE, LIU RUIJIE, GAO ZHANFENG, LI YUMEI, ZHAO CHENLEI, ZHANG YU, LI JUN, LIU TING, WANG GANG, LIU GUODONG, HE YUNZHENG, LI NAISONG, GAO YUNPENG, YANG WEI, WANG LONGQING, FENG LEI, LI LU, LIU HONG, ZHAO HANG] CN;CN;CN Abstract The present invention relates to the technical field of railway track maintenance devices, and disclosed thereby is a self-propelled vehicle for removing sand from a track. The vehicle comprises a driving cab, a walking apparatus and a sand collecting and discharging apparatus; a console is provided within the driving cab, the sand collecting and discharging apparatus is provided at the front of the driving cab, and the walking apparatus is provided below the driving cab, the walking apparatus being provided on a chassis of the driving cab; the walking apparatus comprises walking wheels, working wheels and driven wheels, and the walking wheels, working wheels and driven wheels are all provided on the chassis; the walking wheels for fast walking are driven by power components, and the working wheels for slow travel are driven by driving components. A driver can operate the driving components and power components by means of the console in the driving cab. By means of operating lifting components, the walking wheels and the working wheels alternately cooperate with a track to adapt to low-speed driving when in a sand-cleaning working state and to high-speed driving during transition, which meets the requirements for low-speed driving to clean the sand within the track as well as for high-speed driving and fast transition, reduces the intensity of labor for working personnel, and improves the efficiency of sand cleaning. Drawings of the Description Fig. 1 8 9 11 10 3 Fig. 2

[ZHOU, Yanjun 周延军, FENG, Jiang 冯江, YANG, Shaodan 杨少丹, SONG, Kexing 宋克兴, YANG, Ran 杨冉, ZHOU, Fei 周菲, ZHANG, Yanmin 张彦敏, LI, Shaolin 李韶林, LIU, Yahui 柳亚辉, GUO, Xiuhua 国秀花, ZHANG, Chaomin 张朝民, ZHANG, Guoshang 张国赏, YUE, Pengfei 岳鹏飞, YANG, Wenhao 杨文豪] No. 263, Kaiyuan Avenue, Luolong District 中国河南省洛阳市洛龙区开元大道263号, Henan 471023Luoyang, Henan 471023 A pin-on-disc frictive-corrosive multi-environment coupling test apparatus, and a method. The apparatus comprises: a corrosive environment unit, which comprises a box body (11) and a corrosive medium in the box body (11); an electrochemical unit, which comprises an electrochemical workstation, a working electrode (3) located in the box body (11), and an auxiliary electrode (8) and a reference electrode (9) that have one end inserted into the box body (11), wherein the working electrode (3), the auxiliary electrode (8), and the reference electrode (9) are all connected to the electrochemical workstation; and a friction and wear unit, which comprises a rotating unit and a normal force loading unit, a sample (5) being connected to one end of the rotating unit, and same extending to one side in the box body (11); a friction pair (6) is connected to one end of the normal force loading unit, and same extends to the other side in the box body (11); and a friction and wear procedure is implemented by means of contact and movement between the sample (5) and the friction pair (6). The present apparatus has a simple structure, is easy to operate, has high measurement accuracy and comprehensive functionality, and electrochemical data and friction and wear data under different corrosion and friction conditions can be obtained. A pin-on-disc frictive-corrosive multi-environment coupling test apparatus, and a method. The apparatus comprises: a corrosive environment unit, which comprises a box body (11) and a corrosive medium in the box body (11); an electrochemical unit, which comprises an electrochemical workstation, a working electrode (3) located in the box body (11), and an auxiliary electrode (8) and a reference electrode (9) that have one end inserted into the box body (11), wherein the working electrode (3), the auxiliary electrode (8), and the reference electrode (9) are all connected to the electrochemical workstation; and a friction and wear unit, which comprises a rotating unit and a normal force loading unit, a sample (5) being connected to one end of the rotating unit, and same extending to one side in the box body (11); a friction pair (6) is connected to one end of the normal force loading unit, and same extends to the other side in the box body (11); and a friction and wear procedure is implemented by means of contact and movement between the sample (5) and the friction pair (6). The present apparatus has a simple structure, is easy to operate, has high measurement accuracy and comprehensive functionality, and electrochemical data and friction and wear data under different corrosion and friction conditions can be obtained.

[YANG, Shenglin 杨胜麟, YANG, Ningning 杨宁宁, ZHANG, Hongming 张鸿明, GAO, Yuan 高缘, ZHANG, Hepeng 张鹤蓬, WANG, Yanjun 王燕君, ZHOU, Biao 周彪, YANG, Lifeng 杨立峰, LI, Fei 李飞] No. 3009, BYD Road, Pingshan 中国广东省深圳市坪山区比亚迪路3009号, Guangdong 518118Shenzhen, Guangdong 518118 A vehicle driving system and a vehicle. The vehicle driving system comprises a driving motor, a first planetary gear train, a second planetary gear train, a first clutch and a second clutch, wherein the first planetary gear train and the second planetary gear train have the same structure and can transmit the torque output by the driving motor to a left half axle and a right half axle respectively, two components having the same steering trend in the first planetary gear train and the second planetary gear train counteract each other so as to enable the two planetary gear trains to be relatively stationary when the same torque is stressed, the first clutch is configured to adjust the torque transmitted to the left half axle by the driving motor by means of the first planetary gear train, and the second clutch is configured to adjust the torque transmitted to the right half axle by the driving motor by means of the second planetary gear train.

[HUO, Zhiqiang 霍志强, YANG, Zhi 杨志, HAO, Yong 郝勇, YE, Yunmeng 叶云猛, CHI, Tonghe 池通河, SU, Zhifeng 苏智峰, LIU, Yanjun 刘燕军, GAO, Liqiang 高利强, ZHANG, Hongfei 张鸿飞, ZHONG, Xu 钟旭, YANG, Hui 杨辉, YANG, Yonghuai 杨永怀] No.12, East Haitai Road, Huayuan Industrial Park (Outer Ring) , Tianjin New Technology Industrial Park, Binhai New Area 中国天津市滨海新区天津新技术产业园区华苑产业区（环外）海泰东路12 号, Tianjin 300384Tianjin 300384 Disclosed is a process for increasing crystallization rates in shoulder expansion and isodiametric early stage of a large-size single crystal, comprising a first shoulder expansion stage and a second shoulder expansion stage. In the first shoulder expansion stage, the position of a crucible is adjusted from a first position to a second position, then a first section of shoulder is drawn at a first drawing speed, and temperature is decreased in the drawing process, and in the second shoulder expansion stage, the position of the crucible is kept unchanged, the first drawing speed is changed to a second drawing speed, a second section of shoulder continues to be drawn at the second drawing speed at the bottom of the first section of shoulder, and the temperature continues to be decreased in the drawing process, such that shoulder expansion is completed. According to the present application, only one section of shoulder in the prior art is divided into two sections of shoulders for drawing to increase the surface area of the whole shoulder expansion portion, such that the heat dissipation speed is increased from a physical angle, the heat dissipation capability of the single crystal is improved, an interface overturning process in the growth of the single crystal is accelerated from an isodiametric stage to a shoulder expansion stage, and the interface overturning is completed in the shoulder expansion stage. Disclosed is a process for increasing crystallization rates in shoulder expansion and isodiametric early stage of a large-size single crystal, comprising a first shoulder expansion stage and a second shoulder expansion stage. In the first shoulder expansion stage, the position of a crucible is adjusted from a first position to a second position, then a first section of shoulder is drawn at a first drawing speed, and temperature is decreased in the drawing process, and in the second shoulder expansion stage, the position of the crucible is kept unchanged, the first drawing speed is changed to a second drawing speed, a second section of shoulder continues to be drawn at the second drawing speed at the bottom of the first section of shoulder, and the temperature continues to be decreased in the drawing process, such that shoulder expansion is completed. According to the present application, only one section of shoulder in the prior art is divided into two sections of shoulders for drawing to increase the surface area of the whole shoulder expansion portion, such that the heat dissipation speed is increased from a physical angle, the heat dissipation capability of the single crystal is improved, an interface overturning process in the growth of the single crystal is accelerated from an isodiametric stage to a shoulder expansion stage, and the interface overturning is completed in the shoulder expansion stage.

[LIU, Zhiru 刘志如, WU, Wenjiang 吴文江, WEI, Qing Shan 魏庆山, LV, Yanjun 吕燕军, CAO, Xue Feng 曹学峰, HAN, Lei 韩磊, LI, Yumei 李玉梅, ZHENG, Mingjun 郑明军, DUAN, Chenghua 段成华, YANG, She 杨摄, LIU, Ruijie 刘瑞杰, GAO, Zhanfeng 高占凤, YAN, Jiquan 闫计泉, ZHAO, Chenlei 赵晨磊, ZHANG, Yu 张瑜, LI, Jun 李军, LIU, Ting 刘庭, WANG, Gang 王刚, LIU, Guodong 刘国栋, HE, Yunzheng 何运政, LI, Naisong 李乃松, LI, Lu 李璐, LIU, Hong 刘红, GAO, Yunpeng 高云鹏, YANG, Wei 杨威, WANG, Longqing 王龙青] Zhishichangqubu 中国山西省太原市迎泽区迎泽大街269号知识产权部, Shanxi 030000Yingzequ Yingzedajie 269Taiyuan, Shanxi 030000;Ke Yanchu 中国河北省石家庄市北二环东路17号科研处, Hebei 050000Bei Erhuang Donglu 17Shijiazhuang, Hebei 050000;Zhishi Changquan 中国山西省晋中市榆次区迎宾街209号知识产权部, Shanxi 030600Yuciqu Yingbinjie 209Jinzhong, Shanxi 030600 The present invention relates to the technical field of railway track maintenance devices, and disclosed thereby is a self-propelled vehicle for removing sand from a track. The vehicle comprises a driving cab, a walking apparatus and a sand collecting and discharging apparatus; a console is provided within the driving cab, the sand collecting and discharging apparatus is provided at the front of the driving cab, and the walking apparatus is provided below the driving cab, the walking apparatus being provided on a chassis of the driving cab; the walking apparatus comprises walking wheels, working wheels and driven wheels, and the walking wheels, working wheels and driven wheels are all provided on the chassis; the walking wheels for fast walking are driven by power components, and the working wheels for slow travel are driven by driving components. A driver can operate the driving components and power components by means of the console in the driving cab. By means of operating lifting components, the walking wheels and the working wheels alternately cooperate with a track to adapt to low-speed driving when in a sand-cleaning working state and to high-speed driving during transition, which meets the requirements for low-speed driving to clean the sand within the track as well as for high-speed driving and fast transition, reduces the intensity of labor for working personnel, and improves the efficiency of sand cleaning.