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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 24. Отображено 24.
21-11-2013 дата публикации

COUPLER PUSH-BLOCK, COUPLER TONGUE, COUPLER, AND RAILROAD CAR

Номер: WO2013170740A1
Автор: MENG, Qingmin, JIANG, Yan, ZHAO, Tianjun, CUI, Yingjun, WANG, Changchun, YU, Yuebin, WEI, Hongliang, HU, Haibin
Принадлежит:

A coupler push-block, a coupler tongue, a coupler, and a railroad car. The coupler push-block (7) comprises: a push-block pin shaft (73) arranged vertically and for use in hinging with a hook body (1), and, respectively fixedly arranged on the push-block pin shaft (73), a kick leg (71) used for driving the tongue (2) into horizontal rotation, and a lock base (72) used for mating with a locking block, where the lower surface of the kick leg (71) and the lower surface of the lock base (72) are spaced apart at a first distance. The coupler tongue (2) comprises: a head part (202), a tail part (201), and a connecting part (203) connected between the head part (202) and the tail part (201). The connecting part (203) is provided on a side thereof with a groove (205) extending along the longitudinal direction. The bottom surface of the groove (205) is a pushing surface (211) for mating with the kick leg (71) of the coupler push-block. Inside the coupler hook body (1), which uses the coupler push-block ...

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Номер записи: 1
29-07-2010 дата публикации

COUPLER AND COUPLER TRIPPING PREVENTING MECHANISM

Номер: WO2010083672A1
Автор: CUI, Yingjun, JIANG, Yan, MENG, Qingmin, WANG, Xiaolong, WANG, Junlong, CONG, Shengguo, CHEN, Long
Принадлежит:

A mechanism for preventing tripping of a coupler includes a lower locking pin rod (1), a coupler body (5) and a rotating shaft (2). The rotating shaft (2) is located in a strip-shaped mounting hole (11) of a lower locking pin rod (1) and a round mounting hole of a coupler body (5) in order to realize hinge joint between the lower locking pin rod (1) and the coupler body (5); An upper surface of a rotating shaft (2) has an axial boss (21), a hole wall of the coupler body (5) above the rotating shaft (2) is arranged with an axial recess (53) which receives the axial boss (21); The rotating shaft (2) can move axially relative to the lower locking pin rod (1) and the coupler body (5),and it has two working positions. When the rotating shaft (2) moves to the first working position, an inner end of the boss (21) is located into the strip-shaped mounting hole (11) of the lower locking pin rod (1), an upper wall of the strip-shaped mounting hole (11)contacts against the boss (21), the lower locking ...

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Номер записи: 2
02-01-2020 дата публикации

VEHICLE COUPLER, COUPLER TONGUE AND COUPLER BODY

Номер: WO2020001468A1
Автор: MENG, Qingmin, CUI, Yingjun, WANG, Yan, JIN, Pengdi, WANG, Changchun, CONG, Shengguo
Принадлежит:

Provided are a vehicle coupler, a coupler tongue and a coupler body. Upper traction platforms (101) and lower traction platforms (108) of the coupler tongue (01) and the hook body (03) are arranged in an offset manner in the horizontal direction, and the section R of a traction surface of the upper traction platform (101) and the section S of a traction surface of the lower traction platform (108) are obtained by sectioning the coupler tongue along any vertical surface across an axis of a pin hole (104); and the perpendicular distance between the point on the section R closest to a neck portion (102) and the axis of the pin hole (104) is k, and the perpendicular distance between the point on the section S closest to the neck portion (102) and the axis of the pin hole (104) is m, and as such, n＝|k-m|, and 10 mm ≤ n ≤ 25 mm, thereby avoiding the situation where head portions of the upper traction platform and the lower traction platform of the coupler tongue and the coupler body are in the ...

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Номер записи: 3
04-10-2012 дата публикации

COUPLER YOKE AND COUPLER DRAFT GEAR

Номер: WO2012129835A1
Автор: JIANG, Yan, CUI, Yingjun, CONG, Shengguo, MENG, Qingmin
Принадлежит:

A coupler yoke (34) and a coupler draft gear for railway vehicle include a hollow body (1) with a long hollow square cross section. One inside surface of the hollow body (1)'s two ends acts as a bearing surface (2). At least parts of heavy load zone cross section stand out corresponding to the light load zone cross section. Setting grooves in the middle of the bearing surface enables the centre part which is easy to deform being out of contact with the bottom surface of the buffer (34), reduces the load force received, enhances the intensity of the coupler yoke, avoids the coupler yoke cracking, and assures the train running safety. The coupler yoke can be exchanged with the prior coupler yoke.

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Номер записи: 4
02-01-2020 дата публикации

RAILWAY VEHICLE, COUPLER, AND COUPLER BODY THEREOF

Номер: WO2020001469A1
Автор: CUI, Yingjun, JIANG, Yan, JIN, Pengdi, WANG, Yan, WANG, Changchun, MENG, Qingmin
Принадлежит:

A railway vehicle, a coupler, and a coupler body thereof. The coupler body comprises an upper traction platform (201), a lower traction platform (205), a lock chamber (209), and a pin hole (204), the traction surface of the upper traction platform (201) and/or the lower traction platform (205) being divided into a contact area (211a) and a yielding area (211b) along the direction approaching the lock chamber (209), an extension face of the end of the contact area (211a) next to the lock chamber (209) being an M2 face, and the yielding area (211b) being positioned at the side of the M2 face next to the pin hole (204). The yielding area (211b) is positioned on the side of the contact area (211a) next to the lock chamber (209) and there is a gap and no contact between the yielding area (211b) and a traction platform of a coupler knuckle, thus increasing the distance of the upper traction platform (201) and/or lower traction platform (205) of the coupler body and the edge of the contact area ...

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Номер записи: 5
30-04-2015 дата публикации

RAILWAY FREIGHT CAR CAR-COUPLER BUFFER

Номер: WO2015058634A1
Автор: WANG, Xiaolong, CHEN, Long, MENG, Qingmin
Принадлежит:

Disclosed is a railway freight car car-coupler buffer comprising a car coupler, a coupler yoke fixedly connected to the car coupler, a traction buffer unit arranged within the coupler yoke, and a compression buffer unit connected to the bottom of the coupler yoke. Also, the traction buffer unit comprises multiple pairs of stacked traction buffer unit bodies; first positioning grooves and first positioning protrusions that fit with each other are provided on the contact surfaces of the traction buffer unit bodies in each pair of traction buffer unit bodies. Because the traction buffer unit is in a compressed state when providing a buffering effect, and the first positioning protrusions on the traction buffer unit bodies are embedded into the first positioning grooves during a compression process, lateral movement cannot be generated among the traction buffer unit bodies, as such, the entire buffer unit can only move in the longitudinal direction. This effectively prevents the buffer unit ...

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Номер записи: 6
29-12-2011 дата публикации

COUPLER KNUCKLE AND RAILWAY VEHICLE INCLUDING SAID COUPLE KNUCKLE

Номер: WO2011160544A1
Автор: JIANG, Yan, MENG, Qingmin, JING, Dan, CUI, Yingjun, SUN, Hongji, WANG, Changchun, YU, Yuebin, WANG, Junlong, BU, Wenxue
Принадлежит:

A coupler knuckle for railway vehicle has a draft surface (1) and a knuckle pivot pin hole (2). A bounce table (3) lies on the knuckle pivot pin hole (2), and a traction table (4) lies on the bounce table (3). A nose (5) of the coupler knuckle is provided in the lower part of the coupler knuckle. The bottom surface of the coupler knuckle's nose forms the coupler knuckle's face (6). There is a first groove (61) on the coupler knuckle's face (6). The coupler knuckle is a forging piece. The coupler knuckle has the advantage of high reliability, low cost and is easy to be transported.

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Номер записи: 7
29-07-2010 дата публикации

COUPLER, FOLLOWER AND COUPLER DRAFT GEAR

Номер: WO2010083676A1
Автор: JIANG, Yan, CUI, Yingjun, MENG, Qingmin, CHEN, Long, WANG, Junlong, WANG, Xiaolong, CONG, Shengguo
Принадлежит:

A coupler includes a coupler head, a coupler shank and a coupler tail. The middle part of the coupler tail face is a cylindrical surface whose two sides are symmetrically arranged with protruding shoulders. Carrying surface middle part of the carrier body of a complementary draft follower is a cylindrical surface; two sides of the cylindrical surface are arranged symmetrically with protruding shoulders. A coupler draft gear includes a draft gear yoke, a draft key and the draft follower. The structure can strengthen the automatic alignment of the coupler.

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Номер записи: 8
24-10-2019 дата публикации

METHOD FOR REDUCING EMISSION OF NITROGEN OXIDES AND DIOXINS OF SINTERING FLUE GAS ON BASIS OF CERIUM-BASED CATALYST

Номер: WO2019200852A1
Автор: LONG, Hongming, YU, Zhengwei, ZHANG, Hongliang, SHI, Qi, WANG, Ping, CHUN, Tiejun, MENG, Qingmin, LI, Anqi, GAO, Zhifang, DI, Zhanxia
Принадлежит:

A method of the present invention for reducing the emission of nitrogen oxides and dioxins of sintering flue gas on the basis of a cerium-based catalyst, relating to the technical field of sintering flue gas treatment. The flue gas of the present invention passes through an emission reduction device that is loaded with a cerium-based catalyst, and NH3 and air are blown into the emission reduction device, wherein the cerium-based catalyst comprises Ce:Mn and Fe, the molar ratio of Ce:Mn is 0.25-1, and Fe is an auxiliary agent; the molar ratio of the added ratio range Fe:Mn is 0.25-0.5, and the specific surface area of the catalyst is 80-90m-2/g; the catalyst has a pore volume of 0.16-0.20cm-3/g and a pore diameter of 5.0-6.0nm. The present invention reduces the emission of pollutants of sintering flue gas by means of a cerium-based catalyst, improves the removal efficiency of dioxins and nitrogen oxides, and may reduce the emission of dioxins and nitrogen oxides in the flue gas.

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Номер записи: 9
14-04-2023 дата публикации

Method for simulating and dynamically monitoring expansion of T-shaped crack of reservoir interlayer

Номер: CN115961927A
Автор: ZHANG LIAOYUAN, MENG QINGMIN, SUN ZHIGUO, WANG GUANHUA, CAI ZENGTIAN, LI YUAN, XIAO WEN
Принадлежит:

The invention provides a reservoir and interlayer T-shaped crack propagation simulation and dynamic monitoring method which comprises the following steps: step 1, blending the components and proportion of cement mortar, and testing rock mechanical parameters of the cement mortar; 2, making a rock sample preparation scheme, and preparing large-size rock samples with different reservoir-interlayer rock mechanical properties and reservoir-interlayer interface properties; step 3, strain gauge arrangement and device testing are carried out; 4, arranging and testing an acoustic emission device; 5, an experiment scheme is formulated, and a large-scale physical simulation experiment of the T-shaped crack expansion of the reservoir and interlayer is carried out; step 6, analyzing the dynamic expansion process of the T-shaped fracture in real time by means of the fracture pressure curve, the strain curve and the acoustic emission data; and step 7, after the experiment, analyzing the form and the ...

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Номер записи: 10
29-07-2010 дата публикации

COUPLER-BUFFERING DEVICE, DOUBLE-SIDE ACTION COUPLER AND LOWER LOCKPIN ROTATING SHAFT ASSEMBLY

Номер: WO2010083673A1
Автор: MENG, Qingmin, JIANG, Yan, YU, Yuebin, CUI, Yingjun, CHEN, Long, WANG, Junsong, SUN, Hongji
Принадлежит:

A lower lockpin rotating shaft assembly comprises a lower lockpin rotating shaft body with a first coupler lifting rod suspending hole at the outer side end and a connecting key in the middle portion, further comprises a lower lockpin rotating shaft sleeve with a second coupler lifting rod suspending hole at the outer side end, and the inner side end thereof is in fit connection with the inner side end of the lower lockpin rotating shaft body. A double-side action coupler and a coupler-buffering device comprising the lower lockpin rotating shaft assembly aforementioned are also provided. The coupler-buffering device also comprises two coupler lifting rods (20) and two coupler lifting rod seats (30), the coupler lifting rod (20) crosses a keyhole-shaped through hole of the coupler lifting rod seat (30) and is fixed in the same, and the coupler lifting rod (20) comprises a limiting segment (21) in conjunct position. The coupler head end of two coupler lifting rods (20) are hanged by the first ...

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Номер записи: 11
30-04-2015 дата публикации

CAR-COUPLER BUFFER AND RAILWAY CAR

Номер: WO2015058662A1
Автор: WANG, Xiaolong, YU, Yuebin, HU, Haibin, CHEN, Long, WANG, Changchun, MENG, Qingmin
Принадлежит:

A car-coupler buffer comprising: a coupler yoke used for connecting to a car coupler; a front base body used for being mounted onto a car body; a first flexible element abutted against the coupler yoke at the rear extremity and abutted against the front base body at the front extremity, when the car body is subjected to a traction force, the first flexible element is compressed by the force; a housing arranged at the rear extremity of the coupler yoke, where the rear extremity of the housing is used for connecting to the car body, the housing and the coupler yoke are connected in series via a connecting shaft, and the coupler yoke is allowed to move in the axial direction of the connecting shaft; and, a second flexible element arranged between the housing and the coupler yoke, when the car body is subjected to a compression force, the second flexible element is compressed by the force. With such arrangement, the car-coupler buffer provided in the present invention provides a bidirectional ...

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Номер записи: 12
02-06-2023 дата публикации

MIMO unmanned aerial vehicle communication design method based on Kalman filtering parameter configuration

Номер: CN116208206A
Автор: MENG QINGMIN, WU WANMIN, ZOU YULONG
Принадлежит:

The invention provides an MIMO unmanned aerial vehicle communication design method based on Kalman filtering parameter configuration, and the method comprises the steps: (1) an unmanned aerial vehicle base station constructs a Doppler frequency related configuration table and an MIMO channel model according to Doppler frequency configuration antenna parameters and pilot pattern parameters, and transmits a pilot signal to a ground terminal; (2) a ground terminal receiver configures a feedback window length parameter of the terminal receiver according to the Doppler frequency, the ground terminal obtains an initial value of channel state information by using a least square channel estimation method according to a received signal transmitted by an unmanned aerial vehicle base station, and carries out AR parameter estimation to obtain a state transition matrix; a channel state information value is obtained through estimation on the basis, and the channel state information value is fed back ...

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Номер записи: 13
29-06-2016 дата публикации

Coupler knuckle and use thereof

Номер: CN0205344917U
Автор: WANG SHENGWU, WEN AILING, ZHU ZEQING, WEI HONGLIANG, JIANG YAN, MENG QINGMIN, CUI YINGJUN, ZHAO TIANJUN, DAI JING'AN, YU YUEBIN
Принадлежит:

... 本实用新型提供了一种钩舌，具有钩舌牵引曲面，所述钩舌牵引曲面上设有钩舌销孔，所述钩舌销孔为圆柱孔。本实用新型提供的车钩钩舌是将现有16号车钩钩舌或17号车钩钩舌的钩舌销孔改变为圆柱孔结构，解决了由于现有钩舌销孔的变直径结构设计所存在疲劳强度分布不合理而引起的钩舌牵引曲面疲劳寿命下降的问题，极大的提高了钩舌的抗疲劳强度，从而大大减少了钩舌的损坏率和车钩的更换次数。 ...

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Номер записи: 14
29-07-2010 дата публикации

LOWER LOCKING PIN BODY TWO-SIDE OPERATING COUPLER AND DRAFT GEAR

Номер: WO2010083674A1
Автор: JIANG, Yan, MENG, Qingmin, YU, Yuebin, CHEN, Long, CUI, Yingjun, WANG, Junsong
Принадлежит:

A lower locking pin body (1) for the hinge joint between a lower locking pin (5) and a lower locking pin hook (6) has a suspending hole (11,12) of a coupler lock lifter (20) to facilitate it rotating surrounding the lower locking pin hook (6) under the effect of the hole. There are two coupler suspending holes (11,12) which are respectively arranged on each side ends of the lower locking pin body (1) to facilitate the workers opening the coupler on either side of a car. A two-side operating coupler (10) with above said lower lock pin body (1) and a draft gear are provided, wherein the draft gear also includes two lock lifters (20) and two lock lifter seats (30).The lock lifters (20) are mounted into a key-shaped hole (31) of the lock lifter seats (30), and the lock lifter (20) has a limiting segment (21) on the matched position. Two hook head ends of the lock lifters (20) pass respectively out from the key-shaped holes（31） of the coupler lock lifter seats (30) and hang with the coupler ...

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Номер записи: 15
02-02-2017 дата публикации

RAILWAY VEHICLE AND JOINT CONNECTOR THEREOF

Номер: WO2017016483A1
Автор: LI, Binbin, WANG, Xiaolong, CHEN, Long, WANG, Changchun, YU, Yuebin, MENG, Qingmin, HU, Haibin, WEI, Hongliang, YU, Haiyan
Принадлежит:

Provided are a railway vehicle and a joint connector thereof, comprising a concave joint (1) and a convex joint (2) with a follower plate (3) provided therebetween, and further comprising an elastic member (4). The front end of the elastic member (4) can bear against the follower plate (3) and the rear end can bear against the concave joint (1). The connector compensates for the longitudinal gap by means of the deformation of the elastic member in the forward and backward directions, thus ensuring the reliability of load transmission.

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Номер записи: 16
29-07-2010 дата публикации

DRAFT GEAR YOKE OF DRAFT GEAR FOR RAILWAY FREIGHT CAR

Номер: WO2010083675A1
Автор: JIANG, Yan, MENG, Qingmin, CONG, Shengguo, WANG, Junlong, CUI, Yingjun, CHEN, Long
Принадлежит:

A draft gear yoke of a draft gear for a railway freight car includes a draft gear yoke body (1) and a draft key retainer (3).The head of the draft gear yoke body (1) has a draft key hole for installing a draft key that is connected with the coupler. A draft key retainer (3) for supporting the draft key is installed underneath the head of the draft gear yoke body (1). The shape of the upper surface of a supporting part of the draft key retainer (3) corresponds with a lower surface of the draft key to form surface-contact between the two surfaces. It strengthens safety and reliability of the draft gear yoke.

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Номер записи: 17
14-04-2023 дата публикации

Method for measuring inter-cluster stress interference intensity of segmented multi-cluster fracturing of continental facies shale horizontal well

Номер: CN115964836A
Автор: WANG ZENGLIN, ZHANG LIAOYUAN, MENG YONG, YU FAZHEN, ZHANG ZILIN, MENG QINGMIN, WEI BO
Принадлежит:

The invention provides a continental facies shale horizontal well section multi-cluster fracturing inter-cluster stress interference intensity metering method. The method comprises the steps that 1, a geomechanical model of a rock matrix of a horizontal well section is established; step 2, establishing a rock mass geomechanical coupling model containing fracture parameters; 3, numerical simulation of the crack initiation and expansion process of the fracturing crack of the single-section multi-cluster perforation is carried out; step 4, extracting a traditional SRV modified body envelope volume; 5, superimposing inversion data of each layer of the calculation area to obtain the volume of a stress inversion area; step 6, comparing the size of the step 4 and the size of the step 5, wherein the smaller size is a true transformation size; and 7, comparing fracturing parameters of different clusters and different cluster distances under the same condition, and comparing an optimized transformation ...

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Номер записи: 18
27-08-2021 дата публикации

Automatic pellet pressing system

Номер: CN214060597U
Автор: LIU SHUANG, WANG YIYAO, DING LONG, YANG TAO, WANG MINGHE, QIAN LIXIN, LUO YUNFEI, ZHANG YUDONG, LONG HONGMING, YU ZHENGWEI, MENG QINGMIN, CHUN TIEJUN, DING CHENGYI, LEI JIE, 刘爽, 王毅瑶, 丁龙, 杨涛, 汪名赫, 钱立新, 罗云飞, 章裕东, 龙红明, 余正伟, 孟庆民, 春铁军, 丁成义, 雷杰
Принадлежит: UNIV ANHUI TECHNOLOGY, ANHUI UNIVERSITY OF TECHNOLOGY, 安徽工业大学

The utility model discloses an automatic pellet pressing system, and belongs to the technical field of mineral sintering. The system comprises a screening device, a batching device, a ball pressing device, a gas compressor and a PLC (Programmable Logic Controller), wherein the ball pressing device comprises an extrusion wheel, and a plurality of extrusion grooves are formed in the extrusion surface of the extrusion wheel; a feeding box is arranged above the extrusion wheel, and a discharging opening is formed in the bottom of the feeding box; the feeding box can feed urea and pelletizing materials into the extrusion wheel through the discharging port, and the extrusion wheel is used for extruding the urea and the pelletizing materials into urea pellets. By means of the arrangement, urea pellets wrapped by pelletizing materials can be obtained, so that pellets of a specific structure are obtained, the emission reduction effect in the sintering process is improved, meanwhile, under the control ...

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Номер записи: 19
06-07-2016 дата публикации

COREX coating a device for production of pellets

Номер: CN0205368456U
Автор: 李正一, 狄瞻霞, 龙红明, 王平, 孟庆民, 春铁军, 李家新, 吴雪健, 钱立新
Принадлежит:

... 本实用新型公开了一种COREX涂层球团的生产装置，属于球团生产装置技术领域。本实用新型的一种COREX涂层球团的生产装置，包括焙烧炉、造球机、涂层料罐和进水管，其中，所述的焙烧炉与熟球存储区相连，且熟球存储区801通过上料传输带与造球机相连，所述的涂层料罐通过下料管与造球机相连，该涂层料罐内装有固体抑制剂Ca(OH)，且所述进水管端部的喷头位于造球机的上方。通过本实用新型的生产装置生产的涂层球团能够可以有效改善COREX竖炉工艺中球团矿黏结的问题，有利于预还原竖炉的顺行，提高COREX竖炉设备的利用效率，降低直接还原铁生产成本，所得还原后球团的黏结指数＜25％。 ...

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Номер записи: 20
23-06-2023 дата публикации

Brake device, bogie and railway wagon

Номер: CN116279639A
Автор: YANG CHU, ZHANG YANCHEN, LU ZHENGTAO, WANG MINGDONG, LIU YANCHAO, MENG QINGMIN, ZHAO TIANJUN, XU YI, FEI FAN, LI JIA, NIU GUOXIN, ZHOU JIANCHENG
Принадлежит:

The invention provides a brake device, a bogie and a railway wagon, the brake device comprises a brake assembly, a first brake beam and a second brake beam, the brake assembly comprises a first brake beam and a second brake beam which are arranged at an interval, and the first brake beam and the second brake beam are both provided with brake shoes; the brake cylinder comprises a cylinder body and a piston rod, and the cylinder body is fixedly arranged on the first brake beam or the second brake beam; the transmission assembly comprises a lever assembly and a connecting rod assembly, the lever assembly comprises a first lever and a second lever, the connecting rod assembly comprises a first connecting rod and a second connecting rod, the first lever is hinged to the piston rod, the cylinder body is hinged to the first connecting rod, the first connecting rod is hinged to the second lever, and the second connecting rod is hinged to the first lever and the second lever. The first brake beam ...

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Номер записи: 21
23-06-2023 дата публикации

Data twinning-based system and control method for green wireless resource management

Номер: CN116321036A
Автор: MENG QINGMIN, CHEN WENQING, WANG DONGMING, ZOU YULONG, DU PENG, WU WANMIN
Принадлежит:

The invention discloses a data twinning-based system for green open radio resource management and a control method. A 6G mobile communication network is considered as a hyperlink, which can further expand services in the traditional wireless communication field from a physical world to a digital world. A digital twin green wireless network facilitates capture and utilization of data representative of a physical world. A digital twinning green wireless network and 6G interaction is introduced into a quasi-real-time 6G network management and data governance new method based on digital twinning. The invention provides a data twinning-based system and a control method oriented to green wireless resource management by considering the requirements of a green wireless network supported by renewable energy sources and exploring the potentials of a digital twinning green wireless network and green communication, interaction and generative AI (GAI). Therefore, the sustainability, openness, automation ...

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Номер записи: 22
01-08-2023 дата публикации

Multi-RIS-assisted position information sensing method based on WIFI fingerprints

Номер: CN116520241A
Автор: WANG YIFEI, GAO HAN, YUAN ZOULYU, ZHAO LAIDING, MENG QINGMIN
Принадлежит:

The invention discloses a multi-RIS-assisted position information sensing method based on a WIFI fingerprint. The method comprises the following steps: a WIFI terminal at an unconventional position k firstly receives a reference signal with relatively low signal quality from a certain AP and senses whether an indirect path transmission condition is satisfied; the AP is responsible for controlling the working sequence of a plurality of RISs and reflection phases at the RISs, and then the WIFI terminal sequentially receives AP reference signals forwarded by two or more reconfigurable intelligent surfaces RISs, so that the receiving strength value of the WIFI terminal is maximum and the interference of the RISs is avoided. And the WIFI equipment converts the reference signal of the AP and the reference signals from the two RISs into a two-dimensional feature matrix, so that classification algorithms such as a low-complexity variable decision tree and the like are carried out at the terminal ...

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Номер записи: 23
27-08-2021 дата публикации

Automatic pellet preparation device

Номер: CN214060596U
Автор: YANG TAO, WANG YIYAO, DING LONG, LIU SHUANG, WANG MINGHE, QIAN LIXIN, LUO YUNFEI, ZHANG YUDONG, LONG HONGMING, YU ZHENGWEI, MENG QINGMIN, CHUN TIEJUN, DING CHENGYI, LEI JIE, 杨涛, 王毅瑶, 丁龙, 刘爽, 汪名赫, 钱立新, 罗云飞, 章裕东, 龙红明, 余正伟, 孟庆民, 春铁军, 丁成义, 雷杰
Принадлежит: UNIV ANHUI TECHNOLOGY, ANHUI UNIVERSITY OF TECHNOLOGY, 安徽工业大学

The utility model discloses an automatic pellet preparation device, and belongs to the technical field of mineral sintering. The urea pelletizing device comprises an extrusion wheel, a plurality of extrusion grooves are formed in the extrusion surface of the extrusion wheel, a feeding box is arranged above the extrusion wheel, a discharging opening is formed in the bottom of the feeding box, the feeding box can feed urea and pelletizing materials into the extrusion wheel through the discharging opening, and the extrusion wheel is used for extruding the urea and the pelletizing materials into urea pellets. Through the arrangement, pellets with specific structures such as urea wrapped by pelletizing materials can be obtained, and the emission reduction effect in the sintering process is improved.

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Номер записи: 24