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Robotic surgical system for performing minimally invasive medical procedures

A robotic surgical system for performing minimally invasive medical procedures includes a robot manipulator for robotically assisted handling of a laparoscopic instrument having a manipulator arm, a manipulator wrist supported by the arm and an effector unit supported by the wrist, wherein the manipulator arm provides three degrees-of-freedom by means of a first joint, a second joint and a third joint, each having an associated actuator, for robotically positioning the wrist, the wrist providing two degrees-of-freedom by means of a fourth joint and a fifth revolute joint having an associated actuator, for robotically setting the yaw angle and the pitch angle of the effector unit respectively; the effector unit includes a laparoscopic instrument actuator and provides one degree-of-freedom by means of a revolute sixth joint having an associated actuator for robotically setting the roll angle of the LIA which includes a seat, with an associated coupling mechanism for mounting an instrument stem adaptor to the effector unit, and an actuation mechanism cooperating with the instrument stem adaptor for actuating a laparoscopic instrument connected to the adaptor. The effector unit is configured such that the rotation axis of the revolute sixth joint coincides with the longitudinal axis of a laparoscopic instrument mounted to the effector unit and the effector unit includes a sensor assembly having a 6 degree-of-freedom (DOF) force / torque sensor and a 6 DOF accelerometer. The sensor assembly connects the LIA to the sixth revolute joint.
Owner:EURO ATOMIC ENERGY COMMUNITY (EURATOM)

Robotic surgical system for performing minimally invasive medical procedures

ActiveUS20090024142A1Eliminates insertion and extraction movementShorten exchange timeProgramme-controlled manipulatorDiagnosticsRolling angleSacroiliac joint
A robotic surgical system for performing minimally invasive medical procedures includes a robot manipulator for robotically assisted handling of a laparoscopic instrument having a manipulator arm, a manipulator wrist supported by the arm and an effector unit supported by the wrist, wherein the manipulator arm provides three degrees-of-freedom by means of a first joint, a second joint and a third joint, each having an associated actuator, for robotically positioning the wrist, the wrist providing two degrees-of-freedom by means of a fourth joint and a fifth revolute joint having an associated actuator, for robotically setting the yaw angle and the pitch angle of the effector unit respectively; the effector unit includes a laparoscopic instrument actuator and provides one degree-of-freedom by means of a revolute sixth joint having an associated actuator for robotically setting the roll angle of the LIAs which includes a seat with an associated coupling mechanism for mounting an instrument stem adaptor to the effector unit, and an actuation mechanisms cooperating with the instrument stem adaptor for actuating a laparoscopic instrument connected to the adaptor. The effector unit is configured such that the rotation axis of the revolute sixth joint coincides with the longitudinal axis of a laparoscopic instrument mounted to the effector unit and the effector unit includes a sensor assembly having a 6 degree-of-freedom (DOF) force / torque sensor and a 6 DOF accelerometer. The sensor assembly connects the LIA to the sixth revolute joint.
Owner:EURATOM

Infrared face identification method based on local parallel nerve network

The invention discloses an infrared face identification method based on a local parallel nerve network. A network structure mainly comprises four portions and the method is characterized by 1, extracting a preliminary convolution characteristic: through one group of 2*2 convolution kernel, extracting a preliminary face characteristic and arranging an output characteristic signal; 2, generating a parallel multi-scale convolution characteristic: using a parallel multi-scale convolution network structure to extract face characteristics representing different scale information; 3, generating a classification characteristic vector: using a fully-connected layer to integrate the convolution characteristic so as to acquire a characteristic vector which is used to finally represent a face identity and is used for classification input, and carrying out modified linear activation and random neglect processing; and 4, training and testing a classifier: inputting a processed fully-connected characteristic vector into a Softmax classifier and calculating losses, and reversely spreading, training and adjusting a network parameter so as to realize infrared face identification. The method can be widely applied to infrared face identification and identity identification applications.
Owner:BEIHANG UNIV

Method of performing combined drilling, flushing, and cutting operations on coal seam having high gas content and prone to bursts to relieve pressure and increase permeability

The present invention relates to a “drilling-flushing-slotting” coupled pressure relief and permeability increasing method for a high gas outburst coal seam, which is more particularly suitable for the pressure relief and permeability increasing when gas of a roadway band of the high gas outburst coal seam is pre-extracted through crossing boreholes. On the basis of the crossing borehole pre-extraction measures for the coal seam gas, the hydraulic flushing and the hydraulic slotting are reasonably combined, and a “drilling-flushing-slotting” dedicated device is utilized to implement the coupled operation of “low pressure drilling-medium pressure flushing-high pressure slotting” in a borehole, so that the coal in the pre-extraction area is deformed and moved to form network cracks, passages are provided to the desorption flow of the gas, and the gas is easier to extract. The method can enlarge the single-hole pressure relief influence range, increase the gas permeability of the coal seam, improve the gas extraction efficiency, reduce the number of pre-extraction boreholes, shorten the pre-extraction time and have good applicability to the coal seams in different occurrence states. The present invention can reduce the number of the crossing boreholes by 32.5% and can reduce the length of each crossing borehole by 42.9%, is remarkable in coal roadway regional outburst eliminating effect, and obviously increases the tunneling speed.
Owner:CHINA UNIV OF MINING & TECH

Turbomachine with variable stator

A variable stator of a turbomachine with a profile skeleton line extending along a meridional flow line, with the stator being radially divided into at least three zones (Z0, Z1, Z2) and with the respective radial inner and the radial outer profile skeleton line of each zone (Z0, Z1, Z2) being designed such that it satisfies the following equations: α*=α1-αPα1-α2S*=SPSwhere: P is any point of the profile skeleton line, α1 is the angle of inclination at the stator leading edge, α2 is the angle of inclination at the stator trailing edge, α* is the dimensionless, specific angle of the total curvature, S* is the dimensionless, specific extension, αp is the angle of the tangent at any point P of the profile skeleton line to the central meridional flow line, sp is the extension of the profile skeleton line at any point P, and S is the total extension of the profile skeleton line.
Owner:ROLLS ROYCE DEUT LTD & CO KG

Golf ball

A golf ball which produces high spin rate and accordingly readily stops even when being shot from a rough or in the rain is provided. Such a golf ball is constituted of a core and a cover and the cover has a loss tangent of 0.15 to 0.70 at -10° C. in a temperature distribution curve for dynamic viscoelasticity measured in a tensile mode under conditions of temperature increasing rate of 4° C. / min, frequency of 10 Hz and initial strain of 1.0 mm.
Owner:SUMITOMO RUBBER IND LTD

A text emotion analysis method based on dual-channel model

The invention provides a text emotion analysis method based on a dual-channel model aiming at the problem that the single-channel neural network model has a single structure and can not fully extractthe text information. Includes such steps as training word vector by Word2Vec, representing text as word vector matrix, Then, using and sending the word vector matrix as input data to convolution neural network (CNN) and long-short-term memory (LSTM) network for feature extraction. After that, attention model is introduced to extract the important feature information of the text. Finally, the textfeatures extracted from the two channels are merged, and emotion classification is carried out by using the classification layer. The method provided by the invention has feasibility and superiority,and the performance of the method is obviously superior to other single-channel neural network models.
Owner:HENAN POLYTECHNIC UNIV

Method for adding chemicals to a nonwoven material

InactiveUS20050133177A1Increase softness and bulkLower stiffnessNatural cellulose pulp/paperSpecial paperSynthetic fiberWater jet
A method of adding a chemical additive to a fiber web of nonwoven material including cellulose pulp fibers and synthetic fibers and / or filaments. A hydrojet liquid including the chemical additive is used in at least one hydrojet treatment step, which includes at least one vacuum collecting box. The hydrojet liquid is applied to the fiber web for penetrating the fiber web at a pressure of at least 5 bar but not more than 100 bar, in such a manner so that the chemical additive is penetrated into the fiber to fiber intersections of the nonwoven material.
Owner:SCA HYGIENE PROD AB

Text relation extraction method based on double-layer attention mechanism and bidirectional GRU

The invention discloses a text relation extraction method based on a double-layer attention mechanism and a bidirectional GRU. The text relation extraction method comprises: carrying out entity labeling and relation labeling text corpora; preprocessing the annotation data to generate a training set and a test set of an entity extraction model and a relationship extraction model; constructing a relationship extraction network; respectively carrying out entity extraction model training and relationship extraction model training; inputting the test set data into an entity extraction model to obtain an entity identification result; and inputting the entity identification result and the test set data into a relationship extraction model to obtain a relationship extraction result. According to the invention, entity position information and entity label information are utilized to expand word vector characteristics; vectorization of text information is realized, more feature information is provided for relationship identification, the correlation between input information and output information of the bidirectional GRU model is improved, the influence of keywords on output is enhanced, the anti-noise capability is improved, and the Chinese text relationship extraction accuracy can be effectively improved.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP

Network-based intelligent restaurant system

The invention discloses a network-based intelligent restaurant system. The network-based intelligent restaurant system comprises a catering website server, at least one restaurant management server and a plurality of restaurant customer service terminals which are managed by the restaurant management server, wherein the restaurant customer service terminals acquire terminal operating data, dish data and dining customer data and transmit the data to the restaurant management server; the restaurant management server determines restaurant operation condition information and customer service information according to the three pieces of data; the restaurant management server transmits the customer service information to the restaurant customer service terminals and controls the restaurant customer service terminals to provide immediate service for customers; and the restaurant management server transmits the restaurant operation condition information or the customer service information to the catering website server for browsing. By implementation of the embodiment of the invention, an automated management platform which integrates customer ordering, restaurant internal advertising and network advertising is established, so that the quality of service is improved, enterprise influence is increased, and the cost of human resources is saved.
Owner:郭小卫

Internet interactive advertising system and method with reward measures and interesting interaction

The invention relates to an Internet interactive advertising system and method with reward measures and interesting interaction, belonging to the technical field of Internet information release. The system is characterized in that a virtual task space containing advertising contents and incentive interesting interaction is established, and the advertising contents and the incentive interesting interaction are edited and combined together by using computer programs according to the relation between a process and a framework, thereby forming an integrated interactive advertising system. The method comprises the following steps: embedding the link entry of the system in the position on a webpage of a cooperative website; displaying the advertising contents in a main interface of virtual tasks, logging on an account, and displaying the virtual tasks; randomly selecting a certain amount of virtual tasks for the net citizen to finish; and judging whether to give the reward to the net citizen and which reward is to be given by a judging system according to the task finishing condition of the net citizen. The invention enables net citizens to actively participate in the advertising interaction and get interest and profit from the advertising interaction, so that the website has more and wide user groups.
Owner:魏家巍
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