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And a unique code.Figure 11. Sample rocks for testing.Column 4 of Tables three and four contain the 2-Furoylglycine References disappearance frequency N, the number of pixels in which the rock contour center disappeared from video frames until the fall reached the ground.Appl. Sci. 2021, 11,15 ofTable 3. Program response in the morning (06:00 to 12:00). Rock Code A1 A2 A3 B1 B2 B3 C1 C2 C3 D1 D2 D3 E1 E2 E3 Rock Size cm3 24.53 37.06 49.00 160.93 196.25 184.00 382.68 508.32 657.04 1052.97 1012.00 1235.05 1880.49 2297.01 3041.87 Detect Object 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Disappearance Frequency N 0 21 15 14 12 12 ten 7 six 5 5 four 3 3 two Traceability 0.0000 0.9475 0.9625 0.9650 0.9700 0.9700 0.9750 0.9825 0.9850 0.9875 0.9875 0.9900 0.9925 0.9925 0.Rock code = describes a exceptional rock, 1 = rock is detected, 0 = no rock detected.Table 4. Method response in the evening (13:00 to 18:30). Rock Code A1 A2 A3 B1 B2 B3 C1 C2 C3 D1 D2 D3 E1 E2 E3 Rock Size cm3 24.53 37.06 49.00 160.93 196.25 184.00 382.68 508.32 657.04 1052.97 1012.00 1235.05 1880.49 2297.01 3041.87 Detect Object 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 Disappearance Frequency N 22 20 20 16 14 13 11 11 11 9 7 six Traceability 0.0000 0.0000 0.0000 0.9450 0.9500 0.9500 0.9600 0.9650 0.9675 0.9725 0.9725 0.9725 0.9775 0.9825 0.1 = rock detected, 0 = rock undetected, = unknown values.Column four of Tables three and five consists of the traceability values, assessing the model’s ability to track objects. It depends upon disappearance frequency, as described in Equation (13). Traceability = 1 -Table 5. Simulation setups. Parameter Driver reaction time Brake Engagement time Average acceleration Typical vehicle lengths Average number of autos driving around the road every day (NV) Value 0.four to two s 2s ten m/s2 five.4 m 6245 vehiclesDisappearance Frequncy Field of view height in pixels(13)Appl. Sci. 2021, 11,16 ofDuring the testing method, fifteen differently sized rocks have been applied. The rocks have been dropped separately from a height of 22 m, and also the results with the system’s response are recorded in Table five. The system’s ability to detect objects was evaluated by two values, zero or one–zero inside the case exactly where no event happens and a single inside the case of an occasion occurring within the field of view. Column 3 of Table 5 contains the results of the objects’ detection. The result shows that the method was in a position to detect 93.three with the objects within the morning and 80 in the evening. When traceability had a value between zero and one particular, and field of view height represented the image frame height measured in pixels, the outcomes showed that the typical traceability inside the morning at higher light circumstances was 0.91, though its typical values in the course of the low light situations were 0.77. When comparing the results in Table three with their counterparts in Table four, we observed that tracking rocks during the morning was superior than during the evening. It was confirmed that the system’s capability to detect and track rocks during the high light is improved than it really is for the duration of low light circumstances. five.four. Hybrid Risk Reduction Model Final results Just after data have been collected from the historical information with the rock-fall accidents plus the traffic flow data set, we utilised a Python atmosphere to simulate the rock-fall risk reduction. The hybrid model Hexythiazox MedChemExpress obtained it and compared the result together with the obtained reduction applying the detection and also the prediction models separately. The configurations as well as the setups utilized for simulation are shown in Table five. The simulation final results in Figure 12 show the impact of working with the 3 model.

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Author: haoyuan2014