Abstract: A test method for a variable speed limit (VSL) strategy in a mixed traffic flow considering driver compliance is provided. A road scenario is built, and multiple mixed traffic flows formed by human-driven vehicles (HDVs) and connected and automated vehicles (CAVs) are set, which vary in CAV penetration rate. The VSL strategy is established, and a speed limit of an upstream of the bottleneck area is calculated based on the VSL strategy. A HDV compliance is established, and in combination with the speed limit, the HDV drivers are classified, and a proportion of the HDV drivers in individual types in the road scenario is determined. Based on a traffic flow scenario in which the HDV drivers and CAV drivers are located, indicator data reflecting traffic capacity is calculated. A test system for performing the test method is further provided.

Abstract: A smooth cooperative lane change control method for multi-connected and autonomous vehicles (CAVs), including: acquiring vehicle information of a lane-changing vehicle M and four surrounding vehicles A, B, C and D; constructing uncontrolled-vehicle and controlled-vehicle motion state prediction models; according to the motion state prediction models, predicting motion states of the lane-changing vehicle M, and the vehicles A, B, C and D; constructing an upper-layer optimization model to calculate an optimal control value and an optimized motion state of the lane-changing vehicle M and an optimal control value of the vehicle A; constructing a lower-layer optimization model to calculate an optimal control value of the vehicle D; and controlling the lane-changing vehicle M, the vehicle A and the vehicle D to run according to a corresponding optimal control value.

Abstract: A local dynamic page generation method includes: receiving a service package name of target information delivered by an operation platform, the service package name being configured and generated according to configuration information of the target information; receiving an information display request transmitted by a terminal; acquiring attribute information of the terminal; parsing, when the attribute information of the terminal matches the target information, fields in the service package name in response to the information display request, to obtain the configuration information; and invoking a local dynamic component corresponding to the configuration information to load the target information to a local display region on a current page of the terminal, to generate a local dynamic page.

Abstract: A control method of mixed traffic flow on freeway ramp based on controllable connected and autonomous vehicles (CAVs) is provided. A ramp is divided into a normal driving section, a vehicle platoon formation section and an accelerating and merging section. A vehicle platoon is formed by a leading CAV and human-driven vehicles (HDVs). Time interval [tmin, tmax] for the vehicle platoon to completely reach the merging point S is calculated. CAVs on the main lane and ramp are cooperatively controlled, and a merging gap is reserved for the ramp vehicle platoon. The vehicle platoon is allowed to accelerate and merge into the main lane. By means of the Internet-of-Vehicle (IoV) technology, the traffic situation on the main lane and downstream merging zone can be obtained in advance, and speeds of the CAVs are cooperatively controlled to lead the ramp vehicles to safely merge into the main lane.

Abstract: A smooth cooperative lane change control method for multi-connected and autonomous vehicles (CAVs), including: acquiring vehicle information of a lane-changing vehicle M and four surrounding vehicles A, B, C and D; constructing uncontrolled-vehicle and controlled-vehicle motion state prediction models; according to the motion state prediction models, predicting motion states of the lane-changing vehicle M, and the vehicles A, B, C and D; constructing an upper-layer optimization model to calculate an optimal control value and an optimized motion state of the lane-changing vehicle M and an optimal control value of the vehicle A; constructing a lower-layer optimization model to calculate an optimal control value of the vehicle D; and controlling the lane-changing vehicle M, the vehicle A and the vehicle D to run according to a corresponding optimal control value.

Abstract: A tunable chromatic dispersion compensation device used to compensate chromatic dispersion of wavelength of at least one predetermined wavelength band of light signal is provided. The tunable chromatic dispersion compensation device comprises a chromatic dispersion compensator, and a controller. The chromatic dispersion compensator comprises at least a first chromatic dispersion compensation unit and a second chromatic dispersion compensation unit connected with the first chromatic dispersion compensation unit in series. The first chromatic dispersion compensation unit has a free spectral range, the second chromatic dispersion compensation unit has a free spectral range same as to that of the first chromatic dispersion compensation unit. Each chromatic dispersion compensation unit comprises an interference cavity. The controller comprises an inputting unit being configured for inputting a predetermined chromatic dispersion compensation information.

Abstract: A tunable chromatic dispersion compensation device used to compensate chromatic dispersion of wavelength of at least one predetermined wavelength band of light signal is provided. The tunable chromatic dispersion compensation device comprises a chromatic dispersion compensator, and a controller. The chromatic dispersion compensator comprises at least a first chromatic dispersion compensation unit and a second chromatic dispersion compensation unit connected with the first chromatic dispersion compensation unit in series. The first chromatic dispersion compensation unit has a free spectral range, the second chromatic dispersion compensation unit has a free spectral range same as to that of the first chromatic dispersion compensation unit. Each chromatic dispersion compensation unit comprises an interference cavity. The controller comprises an inputting unit being configured for inputting a predetermined chromatic dispersion compensation information.

Abstract: A method of injecting at least one reagent into a high temperature material includes providing a heat pipe assembly, permitting gravity flow of the liquid working substance from a condenser to an evaporator of the heat pipe assembly through a discrete impermeable liquid return passage therebetween, providing a reagent delivery conduit through the evaporator and emerging at a leading end thereof, conveying the reagent through the reagent delivery conduit and injecting the reagent into the high temperature material. The evaporator of the heat pipe assembly comprises a flow modifier therein adapted to cause swirling of a working substance flow in the evaporator. The condenser is cooled to condense the vaporized working substance received from the evaporator.

Abstract: A method of extracting heat using a heat pipe assembly is provided. The method includes selecting a working substance, providing a heat pipe assembly, selectively permitting the gravity flow of a liquid working substance from a condenser to an evaporator of the heat pipe assembly through a discrete impermeable liquid return passage therebetween, and placing the evaporator and the condenser in heat transfer communication with a first material and a second material respectively, such that heat is exchanged therebetween. The evaporator comprises a flow modifier therein adapted to cause swirling of the working substance flow in the evaporator, and the condenser is cooled to condense the vaporized working substance received from the evaporator.

Abstract: A heat pipe assembly (10/110), under vacuum and having a working substance charged therein, comprising generally an evaporator (12/112) adapted to evaporate the working fluid and a condenser (16/116). The heat exchanging condenser is in fluid flow communication with the evaporator. The condenser is adapted to condense evaporated working substance received from the evaporator and has a reservoir (30/130), located at a higher elevation than the evaporator, for collecting liquid working fluid therein. A discrete, impermeable liquid return passage (36/136, 20/120) permitting the flow, by gravity, of the liquid working substance from the reservoir to the evaporator. The liquid return passage extends through the evaporator and terminates near the closed leading end thereof, and is fitted with a vent line (38/138) that diverts ascending vapor to the top of the condenser.

Abstract: A heat pipe assembly (10/110), under vacuum and having a working substance charged therein, comprising generally an evaporator (12/112) adapted to evaporate the working fluid and a condenser (16/116). The heat exchanging condenser is in fluid flow communication with the evaporator. The condenser is adapted to condense evaporated working substance received from the evaporator and has a reservoir (30/130), located at a higher elevation than the evaporator, for collecting liquid working fluid therein. A discrete, impermeable liquid return passage (36/136, 20/120) permitting the flow, by gravity, of the liquid working substance from the reservoir to the evaporator. The liquid return passage extends through the evaporator and terminates near the closed leading end thereof, and is fitted with a vent line (38/138) that diverts ascending vapor to the top of the condenser.