27results about How to "Timely regulation" patented technology

The invention discloses an urban area ecological environment monitoring system, and relates to the field of environment monitoring systems, the urban area ecological environment monitoring system comprises a data acquisition module, a regulation and control module, a database and an alarm, the output end of the data acquisition module is connected with the input end of a controller, and the controller is in bidirectional connection with the database; the output end of the controller is connected with the input end of the alarm, and the output end of the controller is connected with the input end of the regulation and control module. The system can be used for monitoring the ecological environment of the urban area, can also regulate and control the ecological environment in time according to the monitored ecological environment data, keeps the ecological environment of the urban area to be good, and is also suitable for water pollution monitoring and the like; the urban area ecological environment monitoring system is especially suitable for monitoring parks, landscapes beside roads, lakes and the like in cities; the number of arranged high-definition cameras can be reduced after the system is combined with a low-definition monitor in an urban regional ecological environment monitoring system.

The invention discloses an accurate feeding system based on multi-source heterogeneous data driving and artificial intelligence. The accurate feeding system comprises a control unit, a data acquisition unit, a feeding unit and a feeding monitoring unit. The data acquisition unit comprises an environmental parameter acquisition module and a water quality parameter acquisition module; the feeding monitoring unit comprises an intelligent camera and an underwater identification frame. The feeding method comprises the following steps: S1, data acquisition; s2, the control unit determines the appropriate feeding amount based on the environment parameters, the water quality parameters and the feeding rule data; s3, feeding according to the basic feeding amount, monitoring the feeding condition of the fishes through a feeding monitoring unit after feeding, and performing secondary feeding according to the feeding condition. By means of the accurate feeding system, the bait coefficient can be remarkably reduced, bait waste is reduced, accurate mastering and timely regulation and control of fish feeding requirements can be achieved by using multi-source heterogeneous data such as environment data, water quality data and feeding data, and the scientificity and accuracy of feeding can be improved.

The invention relates to an operation and maintenance management method and device of an intelligent switch cabinet, a storage medium and electronic equipment, and relates to the technical field of switch cabinets, and the method comprises the steps: obtaining the geographic position information of the intelligent switch cabinet; determining a suitable monitoring frequency corresponding to the environmental data of at least one dimension according to the geographical location information; according to each suitable monitoring frequency, obtaining at least one piece of environmental data of the corresponding dimension of the intelligent switch cabinet, and comparing each piece of environmental data with a corresponding environmental data threshold; and if the environment data exceeding the corresponding environment data threshold exists, determining the corresponding environment data as abnormal environment data, and adjusting the operation state of the intelligent switch cabinet based on the abnormal environment data so as to enable the intelligent switch cabinet to operate normally. The intelligent switch cabinet can be regulated and controlled in time.

The invention relates to the technical field of breeding hybridization, and discloses a jujube tree breeding hybridization isolation device which comprises a top cover, the top end of the top cover is fixedly connected with a glass cover plate, the surface of the top cover is fixedly connected with an insect-proof gauze element, and the inner wall of the side, away from the insect-proof gauze element, of the top cover is fixedly connected with a frame plate. The end face of the end, away from the top cover, of the frame plate is provided with a rotating wheel, the surface of the side, close to the rotating wheel, of the frame plate is fixedly connected with an inner control plate, and the inner wall of the end, away from the rotating wheel, of the frame plate is fixedly connected with a control valve. When the device is used, the device is pushed to a jujube tree seed needing to be isolated, at the moment, in an external isolation component, a control valve drives an output rod to operate, the output rod drives an output bevel gear to operate, when the output bevel gear operates, a stress bevel gear is driven to operate through the surface meshing effect, and when the stress bevel gear operates, the control valve drives the output bevel gear to operate. When the fan plate groove runs, the stress rod is driven to rotate and run along the inner wall of the fan plate groove, and when the fan plate groove runs, the fan plate on the surface is driven to run.

The invention discloses a wind, light and fire storage system regulation and control method and device, terminal equipment and a storage medium. The method comprises the steps of obtaining basic data of a wind, light and fire storage system; according to the basic data, by taking the minimum comprehensive cost as a target, constructing a target function of a wind-solar-thermal storage system regulation and control model, and a power flow constraint, a standby constraint, a secondary frequency modulation constraint, a thermal power operation constraint, an energy storage operation constraint, a wind power operation constraint and a photovoltaic operation constraint of the target function; and under each constraint, carrying out iterative solution on the target function, generating a regulation and control strategy of the wind, light and fire storage system when the comprehensive cost is minimum, and carrying out regulation and control on the wind, light and fire storage system according to the regulation and control strategy. Wherein before the objective function is iteratively solved, the objective function is decomposed into a spatial dimension problem and a time dimension problem according to each constraint; and during iterative solution, carrying out parallel solution on the spatial dimension problem and the time dimension problem, and generating the regulation and control strategy when a preset convergence condition is met.

The invention provides a power module, a motor controller of a vehicle and the vehicle. The power module comprises a power module and a detection mounting piece, the power module comprises a base body and a power chip installed on one side of the base body, and the detection installation part is connected to the side, provided with the power chip, of the base body. One side, facing the power chip, of the detection installation part is provided with a temperature detection part, and at least the part, corresponding to the temperature detection part, of the detection installation part has elasticity, so that the temperature detection part can elastically abut against the power chip to detect the temperature of the corresponding power chip, and the temperature detection precision can be improved.

The present invention discloses a power system peak-shaving demand assessment system, comprising a collection layer, a transmission layer, an edge cloud layer and a management platform; the collection layer is used to collect data; the transmission layer is used to transmit the data collected by the collection layer; the edge cloud layer is used to receive and process data, and the processing of data by the edge cloud layer includes preprocessing and analysis processing; the management platform includes a prediction model, an evaluation model and a visualization module; the present invention quickly processes data through the edge cloud layer to reduce the calculation pressure of the management platform; the management platform includes a prediction model, which predicts power generation through the prediction model, and the management platform includes an evaluation model, which evaluates the peak-shaving process through the evaluation model, and the evaluation and prediction can correspond to each other, so as to facilitate timely regulation when the peak-shaving power is insufficient, and maintain the accurate control of the power in the peak-shaving process.

The invention discloses an insulated gate bipolar transistor operation power loss test system, relates to the technical field of power loss test, and solves the technical problem that in the prior art, loss test analysis cannot be carried out on operation power, so that the operation efficiency cannot be ensured. Specifically, an operation influence analysis unit analyzes the operation influence of the electric control equipment, collects a time consumption influence parameter and a temperature influence parameter of the electric control equipment, and analyzes and judges whether the operation influence is abnormal or not according to the parameters; the power loss test unit is used for performing power loss test on the electric control equipment, acquiring power floating information and duration delay information of the electric control equipment, and analyzing and judging whether the power loss test is qualified or not according to the information; whether the current electric control equipment loss test is qualified or not is judged according to the real-time power floating detection, so that the operation of the electric control equipment is monitored in real time, and timely regulation and control are facilitated when the electric control equipment is monitored to be abnormal.

The utility model belongs to the technical field of automobile shock absorber, specifically relates to a linear motor shock absorber, which comprises an electromagnetic coil, a permanent magnet, a core shaft and a sleeve outside the electromagnetic coil, one of the electromagnetic coil and the permanent magnet is connected on the outer side wall of the core shaft, and the other is arranged on the inner side wall of the sleeve, further comprises a displacement sensor, the upper end of the sleeve is equipped with a guide sleeve, the lower end of the sleeve is equipped with a lower limit plate, the core shaft is located inside the guide sleeve and protrudes upwards, a first sliding bearing and a sealing ring located on the top surface of the first sliding bearing are arranged between the core shaft and the guide sleeve, the first sliding bearing and the sealing ring are fixedly arranged on the inner side wall of the guide sleeve, and the first sliding bearing and the sealing ring are in sealed contact with the outer side wall of the core shaft and axially slide. The electromagnetic coil and the permanent magnet are always located in the sleeve, the sealing ring and the core shaft are matched to seal the through hole on the guide sleeve, impurities are prevented from entering the sleeve to damage the electromagnetic coil and the permanent magnet, and the working reliability of the linear motor shock absorber is improved.

The utility model provides a furan resin neutralization reaction adding mechanism, which relates to the technical field of furan resin processing, and comprises a support frame and a reaction kettle, the outer top of the support frame is fixedly provided with a classification box, and the inner side of the support frame is fixedly provided with a quantitative box below the classification box; and a filter cartridge is rotationally connected to the inner bottom surface of the classification box and located in the first storage cavity, and a linkage assembly used for driving the filter cartridge to rotate synchronously is arranged at the outer bottom of the classification box through a fixing sleeve. The first driving motor is used as a power source to drive the rotating shaft rod to rotate, and under the meshing characteristic of the main gear and the driven gear, the connecting rod drives the rotating sleeve to rotate synchronously, so that impurities in various different catalysts can be filtered synchronously, and the filtering efficiency is improved. The problems of poor subsequent reaction effect and low processing efficiency caused by excessive impurities are avoided, so that the working efficiency of processing production is favorably improved.

The invention relates to the technical field of valve structures, in particular to a hydraulic half-bridge type high-water-base proportional valve which comprises a valve body, a main valve element, a main valve sleeve and a liquid return valve element. When the first liquid inlet supplies liquid, the main valve element is driven to move towards the first position, the flow, flowing to the cavity, of the half-bridge input variable throttling opening is reduced, and the flow, flowing to the liquid discharging opening, of the half-bridge output variable throttling opening is increased; until the second liquid inlet is disconnected from the second discharge hole, the first discharge hole is communicated with the liquid outlet; when the first liquid inlet stops supplying liquid, the main valve element moves to the second position, the flow flowing to the cavity from the half-bridge input variable throttling opening is increased, and the flow flowing to the liquid discharging opening from the half-bridge output variable throttling opening is decreased; until the second liquid inlet is communicated with the second discharge hole, the first discharge hole is disconnected from the liquid outlet. A hydraulic half-bridge structure is adopted to control the liquid return valve element, and the structure is simplified; the liquid supply of the first liquid inlet is controlled, the output flow of the main valve is controlled, and the valve has the advantages of being simple and timely in regulation and control, simple in structure and light in weight.

The present invention belongs to the technical field of video transmission optimization. The present invention provides an optimization method and system for network video transmission, comprising: based on the real-time transmission data of the network video and the rate data of the network, analyzing to obtain the abnormal risk value of the network video transmission and obtaining the transmission risk signal; based on the transmission high risk signal, combining and analyzing the bandwidth data and the real-time transmission deviation value to obtain the impact association value; analyzing whether the cause of the abnormal network video transmission is bandwidth fluctuation according to the impact association value, and generating the impact signal; based on the impact signal, generating the corresponding feedback signal, wherein the feedback signal comprises a detection signal and a control signal; based on the generation of the control signal, obtaining the control coefficient; and controlling and optimizing the network video transmission according to the control coefficient. The present invention can timely discover potential video transmission problems, quickly control and optimize the abnormal network video transmission, and ensure the transmission quality and stability of the network video.

The utility model relates to the technical field of wall maintenance, in particular to a station side wall automatic maintenance system device which comprises a walking vehicle, a controller is arranged on the walking vehicle and used for controlling movement of the walking vehicle, a water tank is arranged above the walking vehicle, a pump body is arranged at the bottom of the water tank, a conveying pipe is connected to the pump body, and the conveying pipe is connected with the controller. The upper end of the conveying pipe is connected with a connecting block, the connecting block is located on the rear side of the walking vehicle, a spray head is installed on the rear side of the connecting block, the outer side of the connecting block is connected with a connecting base, the outer side of the connecting base is connected with a height adjusting mechanism, and the height position of the connecting base is adjusted. According to the automatic maintenance system device for the station side wall, the spraying head can be driven to move through movement of the walking vehicle, so that the walking vehicle can move along the side wall, continuous spraying maintenance is conducted on the side wall, no pipeline needs to be arranged, the walking vehicle can be remotely controlled to move to achieve maintenance, automatic maintenance can be achieved, and use convenience is improved.

The invention discloses a coil temperature control system which comprises a coil frame, at least one layer cooling plate and a temperature measuring assembly. The coil frame comprises an inner ring supporting plate around a first axis, an upper cooling plate and a lower cooling plate, the inner ring supporting plate can conduct heat, the upper cooling plate and the lower cooling plate are connected with the two opposite sides of the inner ring supporting plate respectively in the direction of the first axis, and the inner ring supporting plate is suitable for winding a coil. The layer cooling plate is located between the upper cooling plate and the lower cooling plate and connected with the inner ring supporting plate so that the two surfaces, oppositely arranged along the first axis, of the layer cooling plate can be attached to the coil. The temperature measuring assembly is suitable for being inserted into the coil in the direction of the first axis to measure the temperature in the coil. And heat exchange media are arranged in the upper cooling plate, the lower cooling plate and the layer cooling plates, so that the upper cooling plate, the lower cooling plate and the layer cooling plates exchange heat with the coil. The coil temperature control system can be suitable for a special-shaped coil or a square coil, the contact area of the device and the coil is increased by adding the layer cooling plate, and therefore the heat exchange efficiency is improved.

The invention discloses a power equipment regulation and control method and system. The method comprises the following steps: acquiring historical daily load data, historical meteorological data and real-time load data of a target area; screening out first historical daily load data under different special events from the historical daily load data according to the historical meteorological data; wherein the special events comprise meteorological disaster events and non-meteorological disaster events; determining a reference date corresponding to each special event according to the historical meteorological data and the first historical daily load data; obtaining the daily load change condition of each special event according to the first historical daily load data and the second historical daily load data of the reference day; and when it is detected that the real-time load data is matched with the first historical daily load data of any special event, obtaining a target daily load change condition of the special event, and regulating and controlling the power equipment in the target area. According to the invention, when the occurrence of a special event is detected, the power equipment can be accurately and timely regulated and controlled.

This invention discloses a reliability testing method and system for silicon carbide MOSFETs. The reliability testing method for silicon carbide MOSFETs includes the following steps: preparation, connecting the device under test (DUT) to the system; initial measurement, measuring initial electrical parameters; cyclic testing, sequentially performing a heating step, a testing step, and a cooling step; the heating step involves raising the junction temperature of the DUT to a target junction temperature and maintaining it stable under the combined effects of ambient temperature and the self-heating of the DUT; the testing step involves real-time monitoring of high-temperature electrical parameters; the cooling step involves measuring intermediate electrical parameters; and the calculation involves calculating the estimated lifetime of the DUT at the actual junction temperature. The reliability testing method for silicon carbide MOSFETs of this invention can detect the reliability of the high-temperature conduction state of silicon carbide MOSFETs.

The present invention belongs to the technical field of audio and video communication supervision, and specifically is an online audio and video communication management system suitable for judicial procedures, comprising a communication management platform, a court audio and video acquisition module, a trusted terminal network condition detection module, an audio and video transmission supervision module and a background supervision terminal; the present invention uses a trusted terminal pre-assessment module to reasonably analyze and accurately evaluate the use risk of a trusted terminal to be connected before audio and video transmission, ensuring that all connected trusted terminals are in a low-risk state, and when the trusted terminal displays audio and video information, the trusted terminal network condition detection module is used to detect the network status of the corresponding trusted terminal, and the audio and video display effects of all network terminals are monitored through the audio and video transmission supervision module, and after a transmission abnormality signal is generated, the abnormal cause is promptly investigated and diagnosed and corresponding targeted management and control measures are taken, further ensuring the transmission stability and transmission quality of the court's online audio and video.

The present invention discloses a method, device, electronic device and storage medium for regulating intelligent driving hardware equipment. Relating to the field of intelligent driving, the method comprises: determining the operating parameters of at least one intelligent driving hardware equipment of a target vehicle based on a pre-installed sensor; if the operating parameters of the intelligent driving hardware equipment are not within the preset operating parameter range, regulating the intelligent driving hardware equipment based on the operating parameters of the intelligent driving hardware equipment of the target vehicle, so that the operating parameters of the intelligent driving hardware equipment are within the preset operating parameter range, and the preset operating parameters are the operating parameters of the intelligent driving hardware equipment when it is operating normally or when it stops operating. The technical solution of the present application is adopted, so that after the automatic driving function is turned on, the intelligent driving hardware equipment can be continuously detected, and when an abnormality occurs in the intelligent driving hardware equipment, the intelligent driving hardware equipment can be regulated in time, thereby providing protection for the driving safety of the driver.

The utility model relates to the technical field of blended yarn processing, in particular to a blending device for blended yarn processing, which comprises a supporting component and a mixing component, the supporting component comprises a base and a support fixedly mounted at the upper end of the base, and the mixing component comprises a mixing barrel and a feeding pipe mounted on the side wall of the mixing barrel. A second motor assembly with a rope is additionally arranged, the feeding box is driven to be lifted along a sliding rail, materials are lifted to a feeding opening in the high position of the equipment, feeding operation is automatically completed, the materials are stably lifted to the position above a mixing assembly for material proportioning work, a protective cover with a cover plate is installed above a material mixing barrel, and the working efficiency is improved. The protective cover can protect the mixing barrel and reduce the influence of the external environment on materials, the cover plate can be conveniently opened, a small amount of auxiliary materials can be added into the mixing barrel from the cover plate without passing through the feeding pipe, the loss of the auxiliary materials in the conveying process is reduced, the uniform mixing condition in the mixing barrel can be conveniently observed from the cover plate, and the working efficiency is improved. And the material mixing and proportioning process is regulated and controlled in time.

The invention relates to the technical field of power system current-carrying level and line thermal stability analysis, in particular to an extreme temperature environment power grid safety assessment method based on thermal-force-sag tide coupling. According to the scheme, the thermal-force-sag coupling characteristic equation of the overhead line is fused into traditional load flow calculation, and the operation state of the power grid under the high-temperature condition is accurately predicted and evaluated. According to the method, the change of physical parameters such as the temperature, the stress and the sag of the line is considered, comprehensive estimation is carried out, and more accurate power system operation state evaluation is provided by integrating a thermal-force-sag coupling characteristic equation of the overhead line into traditional load flow calculation. According to the method, an electric power system operator can accurately predict the load change of a power grid and the physical response of a line in an extreme high-temperature environment, so that a scientific basis is provided for stable operation and timely regulation and control of the power grid.

The invention relates to the technical field of emergency eye washing equipment, in particular to an anti-freezing emergency eye washing device which comprises a positioning bottom plate, a supporting column is fixedly connected to the upper surface of the positioning bottom plate, a water inlet pipe is inserted into one side of the interior of the supporting column, a protective cover is fixedly connected to the front surface of the supporting column, and a control box is fixedly connected to the interior of the front surface of the protective cover. The ends, away from the positioning bottom plate, of the supporting columns are fixedly connected with positioning transverse plates. Stable spraying, anti-blocking and anti-freezing operations are achieved in a mechanical and system combined mode, so that damage to eyes is reduced, the starting time is shortened, dust prevention treatment is conducted on the eye washing nozzle in the eye washing groove through the protective cover, the situation that dust in the environment makes contact with the eye washing nozzle, and consequently the eye washing nozzle is blocked is avoided, and the eye washing effect is improved. And through transmission between the gears, the water valve plate is regulated and controlled by the single-sided gear through the gear plate, so that the eye washing efficiency is improved, and emergency rescue links are reduced.

The utility model relates to the technical field of high-speed metering valve gas flow measurement, and particularly discloses a high-speed metering valve gas flow measurement system which comprises a gas transmission gas tank and a controller, a gas inlet of the gas transmission gas tank is communicated with a gas supplementing pipe, and a first gas valve is arranged on the gas supplementing pipe; a gas outlet of the gas conveying gas tank is communicated with a gas conveying pipe; a second air valve, a first pressure sensor, a flow meter and an ejector are arranged on the air conveying pipe; the gas conveying pipe between the gas conveying gas tank and the second gas valve is connected with a dynamic compensation gas circuit through a tee joint; the dynamic compensation gas circuit comprises a circulating gas tank, a gas pump, a pressure stabilizing gas chamber and a regulating gas valve; the high-speed metering valve can meet the requirements of large flow, constant system pressure and the like in the gas flow measurement process, and is good in control effect and reliability.

The invention relates to the technical field of compound analysis, and particularly discloses a method for detecting the purity of N-phenyl-3-carbazole boric acid. Detection is carried out according to the following high performance liquid chromatography conditions: a chromatographic column: ZORBAX SB-C18, 4.6 mm * 150 mm, 5 [mu] m; a mobile phase A is an acetic acid aqueous solution; a mobile phase B is a mixed solution of acetic acid-methanol-acetonitrile; the detection wavelength is 242 nm to 270 nm, and gradient elution is carried out. Methodology research and verification show that the method disclosed by the invention is relatively good in sensitivity, accuracy and reproducibility, accurate detection of the purity of the N-phenyl-3-carbazole boric acid can be realized by using a simpler method, the defect that the purity of the N-phenyl-3-carbazole boric acid cannot be accurately detected in the prior art is overcome, and the method is suitable for industrial production. Therefore, an effective guarantee is provided for improving and better controlling the quality of N-phenyl-3-carbazole boric acid and downstream products, and the consistency and stability of the quality of the downstream products are guaranteed.

The invention relates to the technical field of rock testing equipment, and proposes a high-temperature and high-water-pressure rock concrete ion corrosion reactor, comprising a reactor, a driving shaft, a supporting assembly, a stirring assembly, a monitoring assembly and a lifting bearing assembly; a driving shaft is vertically rotatably installed in the reactor, the driving shaft is respectively connected with the supporting assembly and the stirring assembly from top to bottom, a spline segment 1 and a spline segment 2 are arranged on the driving shaft from top to bottom, the spline segment 1 and the spline segment 2 are respectively matched with the supporting assembly and the stirring assembly through a spline structure; a plurality of standard specimens are placed on the lifting bearing assembly, and the lifting bearing assembly is matched with a screw mechanism on the supporting assembly through a nut mechanism; a plurality of monitoring assemblies are arranged, the plurality of monitoring assemblies correspond to the plurality of standard specimens one by one, the monitoring assemblies are fixedly arranged on the lifting bearing assembly, and the monitoring assembly drives the monitoring equipment to move toward the standard specimen through the action of a moving cylinder; the invention is convenient for specimen taking, has high test efficiency, and can simulate a variety of complex working conditions.

The application discloses a kind of civil aviation control system sub-security state hawk-dove game regulation methods, step 1) collection air traffic control system operating data;Step 2) according to the information obtained in step 1) establishes hawk-dove game model;Step 3) according to system operating data, the key variable in the above model is valued;Step 4) calculate risk disturbance and fitness take hawk strategy Nash equilibrium probability;Step 5) calculate the probability that the control system changes to different states, and provide corresponding regulation method.The civil aviation control system sub-security state regulation method provided by the application is an objective evaluation method in the field of air traffic control safety, which can quantitatively analyze the operation trend of the control system in the sub-security state, move the risk control threshold forward, avoid the occurrence of unsafe events, and realize the transformation of the control system from the sub-security state to the security state.

The utility model relates to the field of reagent storage temperature detection, and discloses diagnostic reagent enzyme raw material storage temperature detection equipment which comprises a storage cabinet, a first air pipe fixedly connected to the outer wall of the storage cabinet, a second air pipe fixedly connected to the outer wall of the storage cabinet, and a third air pipe fixedly connected to the outer wall of the storage cabinet. A hinge column is hinged to the outer wall of the storage cabinet. According to the device, four vent holes are formed in the inner wall of the storage cabinet, the vent hole in the inner side face is directly connected into the air bin, and vent holes are formed in the upper portion and the two sides of the inner wall of the storage cabinet to be connected with the second air pipe, the first air pipe and the third air pipe and are connected into the air bin respectively for temperature detection after mixing. Thermal insulation layers are arranged on the outer walls of the gas bin, the first gas pipe, the second gas pipe and the third gas pipe, gas temperatures of four parts in the cabinet are extracted for mixed detection, the accuracy of mixed detection of temperatures at multiple positions in the cabinet is improved, errors are reduced, and heat changes are reduced again in cooperation with the thermal insulation layers.

The invention discloses a logistics vehicle comprehensive transportation management method and system, relates to the technical field of logistics vehicle management, solves the technical problem that in the prior art, logistics vehicles cannot be reasonably analyzed according to real-time requirements and supply during transportation, so that the matching efficiency of the logistics vehicles is unqualified, and particularly relates to a transportation real-time matching unit. The main body matching module is used for marking to-be-conveyed vehicles in the logistics conveying network as conveying main bodies, marking the conveying main bodies as conveying performance sets according to conveying parameters of the conveying main bodies, marking goods receiving places of the logistics conveying network as receiving main bodies, marking the receiving main bodies as receiving demand interval sets according to receiving parameters of the receiving main bodies, and carrying out main body matching; after transportation real-time matching is completed, a network efficiency evaluation time period is set; it is guaranteed that the vehicle supply performance in the transportation process can meet the requirement of an actual goods receiving place, and the supply efficiency of logistics vehicle transportation is improved.