80 results about "Navigability" patented technology

Methods for easy, atraumatic access to areas of the vasculature that are otherwise difficult to access, using steerable guide catheters constructed with components that are selected to provide optimal navigability, torque transfer, and push ability for a variety of typical percutaneous access routes. The catheter wall thickness in the deflecting segment of the guide catheter is about 1 French (⅓ mm) or less, and includes a slotted deflection tube, and this construction allows a very tight turning radius which in turn enables guide catheter access to regions of the vasculature that are otherwise inaccessible.

An optical navigation system for determining movement relative to a navigation terrain includes a first source and a second source of optical radiation for illuminating the navigation terrain, the first source differing from the second source in at least one operating parameter. The system further includes means to select the first source and the second source independently based on decision criteria. The system further includes a detector for capturing patterns in the optical radiation subsequent to illuminating of the navigation terrain.

The present disclosure is directed toward systems and methods that provide users with efficient and effective user experiences when browsing, selecting, or inspecting content items. More specifically, systems and methods described herein provide users the ability to easily and effectively select multiple content items via a single touch gesture (e.g., swipe gesture). Additionally, systems and methods disclosed herein can allow users to select various content items in a selection interface, preview a content item, and return to the selection interface with the previous selections remaining intact. Still further, systems and methods described herein allow users to transition between a content graphical user interface and a selection interface based on touch gestures with content items. Embodiments of the present invention further provide improved navigability by collapsing views of content items.

The present invention provides significantly improved accessibility of website content on mobile and tablet devices with an emphasis on preserving the original intent of the content author/designer by inferring the characteristics of navigability, content organization and chunking and then adapting the original content for multiple end user device profiles using a rule based techniques. Aspects of the present invention address issues with information searching, navigation constraints of the devices, the content organization, information clutter and information overload on web pages and adapting the content to leverage device specific features by generating extensible user interface widget code.

A steering wheel system for a vehicle includes a display and a controller. The controller receives vehicle parameters from one or more vehicle sensors as well as geometric or navigability characteristics of the road. The controller generates a prediction of an effect of the vehicle parameters on the vehicle with respect to the geometric or navigability characteristics of the road. The controller sends a signal to the display based on the prediction. The display is configured to display a representation of the prediction based on the signal received from the controller.

The invention aims to provide a partially-air-cushion-supported shallow-draft high-speed catamaran comprising two demihulls, vertical wings, a head air bag, a tail air bag and a cross structure. The cross structure is fixed between the demihulls, and comprises a hollow structure composed of an upper layer and a lower layer of plates, the hollow structure forms a pressurized chamber, the vertical wings are fixed at the bottom of the cross structure, air cushion chambers are composed of spaces formed by the two demihulls and the bottom of the cross structure, a hull stand is formed by the two demihulls, the cross structure and the vertical wings, the head air bag and the tail air bag are mounted at the head end and the tail end of the hull stand respectively, a tail gangplank is further mounted at the head end of the hull stand, a chamfer is arranged at the joint of the lower layer of the cross structure and each demihull, air holes are formed in each chamfer, and air in the pressurized chamber is injected into the air cushion chambers from the air holes to form air cushions so as to raise the hull stand and reduce draft. When the catamaran navigates in a hovering state, wetted surface is reduced greatly, and navigability is improved significantly.

A container port production scheduling system belongs to the technical field of electronic information. According to the technical scheme, the ship berthing planning system comprises a ship berthing planning module for processing ship berthing application, making berthing and berthing plans and making day and night production plans; the loading monitoring module is used for ensuring that the loaded container ship has moderate navigability and the requirements of wharf production organizations are met by the loading monitoring module; the storage yard monitoring module is used for reasonably and effectively deploying storage yard operation machinery; and the crossing monitoring module is used for ensuring the stacking quality of the containers at the wharf and ensuring the loading progressand the operation efficiency of the ship. Beneficial effects are as follows: the feed additive is According to the container port production scheduling system, the advanced and practical information technology is applied to modernized port construction and operation, the port logistics service quality is improved, a port production scheduling plan with computer assistance is more scientific than aplan relying on experience manually, more factors can be considered, production benefits are higher, and risks are lower.

Embodiments of the invention combine two primary factors to provide a score that is analyzed to produce an optimal coordinate map. These two primary factors are synchronized to drive user behavior. According to some embodiments the concept of attractiveness of a coordinate point is affected by the navigability to that coordinate point. The second primary factor is the measure of the merit of the activity at a coordinate point. Accordingly, the metric is determined by synchronizing the navigability to a coordinate point with the merit of the activity at that coordinate point to arrive at an optimal coordinate map containing coordinate points that match given constraints.

The invention provides a product design knowledge management method and a product design knowledge management system, and relates to the field of computers. The method comprises the following steps of: collecting and organizing design cases related to each design activity according to the knowledge requirements of each design activity in a product design process, and combining the design cases into knowledge units corresponding to the design activities. Or, after the formation of the knowledge units, the method also comprises the following steps of: analyzing design steps of each design activity and a required solver, and packaging the knowledge unit, the design steps and the solver, which correspond to each design activity, into a knowledge component corresponding to the design activity. After being formed, the knowledge components also can be registered and published to form shared knowledge service. The product design knowledge management scheme has the advantages of integration, knowledgeability, parameterization, automation, configurability, navigability and the like, complexity in problem solving is lowered, and requirements for the design experiences of a designer are lowered.

A method for autonomously controlling a feed mixing vehicle, a vehicle having an autonomous controller, a computer program for carrying out the method, and a corresponding control device. The vehicle has a chassis, working elements for carrying out partial tasks, scanners and/or sensors for transmitting data, and at least one computer for controlling all the processes. The scanner/sensor acquires spatial data of the surroundings and generates therefrom a 3D map of the current geometry of the surroundings. The current geometry of the surroundings is placed in relationship with an area that is basically released to be traveled on by the autonomous vehicle, with the result that the navigability of the travel path of the autonomous vehicle can be checked, and in the case of detected non-navigability the travel path can be adapted autonomously to the requirements of the situational spatial surroundings and can be replaced by an alternative travel path.

The invention discloses a ship torque gyro stabilizer. Gyroscopic torque is converted into restoring torque of a ship body. A gyrorotor is driven through a flat motor to rotate at a high speed to provide the gyroscopic torque, and the size of damping force outputted through a damper or rotating speed meter-adjustment procession speed of a servo motor can be adjusted by adopting a dynamic feedback mechanism, so that the gyroscopic torque can be converted into the restoring torque of the ship body to the great extent so as to achieve good stabilizing effect. The ship torque gyro stabilizer is simple in structure and convenient to mount; no modification is required for an existing ship when mounted, navigability and comfortableness of small ships can be improved easily, and popularization and application prospects are quite broad.

The invention discloses an ice boat contact process numerical calculation method, and belongs to the field of ice region ship navigation performance calculation. The method is characterized by carrying out the numerical simulation and calculation of the ice boat contact process by combining a near-field dynamics method and an ice boat contact area recognition method, firstly, dispersing an ice field solid structure into a series of ice substance points, and initializing the density, volume, speed and acceleration parameters of all the ice substance points; dispersing the ship body three-dimensional model needing to be calculated into a series of quadrilateral surface element forms; adopting an ice-boat contact area recognition algorithm to carry out the contact judgment on all ice materialpoints and a ship body structure at the current moment and the calculation of an ice load; calculating the crushing condition of the sea ice particles under the contact action at the current moment based on a near-field dynamics method; and calculating sea ice breaking by using an ice boat contact area and a near-field dynamics method in each time step until the maximum time step is reached. Theice boat contact detection method can effectively carry out the contact identification on the ice particles and the boat body and calculate the transient ice load.

The invention provides a transmission device of any rotation angle ratio of a ship flap rudder of a slide block type, comprising a main rudder blade, a main rudder shaft, a wing rudder blade and a wing rudder shaft. The main rudder shaft penetrates through a ship bottom shell by a ship bottom seal, the main rudder blade is mounted on the main rudder shaft, and the wing rudder blade is mounted on the wing rudder shaft. The transmission device also comprises a fixed guide rail, a fixed slide block, a sliding bearing, a movable slide block, a movable slideway, a hydraulic oil cylinder and a piston rod; the hydraulic oil cylinder is mounted in the ship bottom shell, and the piston rod of the hydraulic oil cylinder penetrates through the ship bottom shell to be connected with the movable slide block which is connected with the fixed slide block; a sliding bearing is mounted outside the movable slide block, the fixed slide block is mounted in the fixed guide rail, the movable slide block is mounted in the movable slideway, and the wing rudder shaft is connected with the movable slideway. The transmission device enables the flap rudder to rotate and separate from the restriction of a main rudder, improves the course control performance of a rudder system, reduces the energy consumption, improves the reliability and improves the ship navigability.

The invention discloses a straight wall constant wetted length slideway type round bilge speed boat shape which is characterized in that a boat body comprises two straight wall constant wetted length round bilge lateral bodies in left-right symmetry, slideway tops and slideways, the straight wall constant wetted length round bilge lateral bodies are formed by straight wall contour lines, slideway contour lines, stern cross section lines, stern bottom oblique ascensions, midship cross section lines and midship bottom oblique ascensions. The straight wall constant wetted length slideway type round bilge speed boat shape has the advantages that the wetted length is constant, during sailing, waves and flying foams on the outer side of the boat body are reduced greatly, the waves, flying foams and air flows on the inner side of the boat body flow through the slideways and flow out towards the rear of the boat at high speed, parts of the energy of the waves and flying foams on the inner side of the boat body are recycled by the slideways (equals to wave and foam elimination) and converted into the dynamic lifting force of the boat body along with the air flows, the operability, navigability and seakeeping performance of the boat shape are increased greatly, and the boat shape is applicable to sea conditions 1-2 levels higher than those which traditional speed boats are applicable to. In addition, due to the fact that the wetted length of the boat shape is constant, the performance of the boat shape can be favorably and theoretically analyzed and researched by using length Froude number.

The invention discloses a pitching and heaving proportion-differential control method for a wave-piercing catamaran. Through the method, the pitching angle and the heaving height of the wave-piercing catamaran can be automatically controlled through feedback of a proportion-differential gain control matrix, and then the navigability of the wave-piercing catamaran is improved. According to the method, the gain control matrix can be directly mapped to scaling factors of the rotation angle of a front executing mechanism and the rotation angle of a rear executing mechanism relative to the pitching angle, the pitching angular speed, the heaving height and the heaving rate of a hull, so that the pitching angle and the heaving height of the wave-piercing catamaran are changed by controlling the attack angles of executing components. Through the algorithm, the heaving range of the wave-piercing catamaran can be reduced by 20 percent to 30 percent or so, and the pitching range of the wave-piercing catamaran can be reduced by 30 percent to 50 percent just through simple programming and the executing mechanisms, and consequently the comfort and the navigability of the wave-piercing catamaran at a high navigational speed can be achieved at a low cost.

The invention discloses a method for establishing an intelligent mining model based on multi-source marine target data. The method comprises five steps of 1, situation awareness, 2, situation understanding, 3, situation prediction, 4, behavior decision model establishment and 5, small ship behavior judgment. According to the invention, an intelligent data mining technology is introduced to be combined with a navigability situation analysis knowledge base, target identification and state prediction estimation of offshore small ships are realized through situation awareness, situation understanding and situation prediction methods, and a ship behavior decision model is established at the same time; and the ship navigation danger, violation of rules and laws and the caused danger are judged by comparing with the state prediction estimation of the small ship, so that the method can predict the potential navigation danger on a large-range ship route and ensure that the small ship can travelon a safe ship route.

The invention provides a main wing retractable type fixed wing airplane which is a transportation vehicle capable of flying in the air. In order to solve the problems that an existing airplane cannot fly and descend in an economical and energy-saving manner, the design is carried out. The main wing retractable type fixed wing airplane is structurally characterized in that a specially-designed outrigger box and a fuselage cross beam are connected in a fastened manner and straightly stretch out of the two sides of a wing; a cantilever is used for bearing acting forces of sliding wing sections in all directions; the sliding wings on the two sides freely retract and slide in an outer sleeve wing on the surface of the outrigger box due to control and limitation of action cylinders; the wing expansion and the wing shape can be changed by flying speeds; a semi-driving type vertical fin is also designed to retract up and down to adjust the control area, so that the flying resistance of the whole airplane is reduced, and the adapting thrust is reduced; the main wing retractable type fixed wing airplane is economical, environment-friendly and safe, and the navigability also can be improved; in order to be adapted to the gravity center change caused by the speed change of the airplane, a gravity center adjusting vehicle mounted on a guide rail is designed, and a trimming power vehicle is controlled to move forwards and backwards to adjust the gravity center; and the part construction is shown as a figure of the specification in detail, and an airplane designing and manufacturing enterprise can produce the applicable product according to the design.

To achieve the required optional conformability and navigability of the hovering motion of the hovering body in a free liquid environment, the hovering body is equipped with a suitable created mechanism for optional control of direction and/or the position of the hovering motion in the form of the basic jacket suitably equipped with at least one slot jet where the basic jacket is suitably connected to the elongated jacket mechanism for the optional stabilization of the direction and/or the position of the hovering motion suitably equipped with at least one uplift component.