Fast Blind Deblurring of QR Code Images Based on Adaptive Scale Control

With the development of 5G technology, the short delay requirements of commercialization and large amounts of data change our lifestyle day-to-day. In this background, this paper proposes a fast blind deblurring algorithm for QR code images, which mainly achieves the effect of adaptive scale control by introducing an evaluation mechanism. Its main purpose is to solve the out-of-focus caused by lens shake, inaccurate focus, and optical noise by speeding up the latent image estimation in the process of multi-scale division iterative deblurring. The algorithm optimizes productivity under the guidance of collaborative computing, based on the characteristics of the QR codes, such as the features of gradient and strength. In the evaluation step, the Tenengrad method is used to evaluate the image quality, and the evaluation value is compared with the empirical value obtained from the experimental data. Combining with the error correction capability, the recognizable QR codes will be output. In addition, we introduced a scale control parameter to study the relationship between the recognition rate and restoration time. Theoretical analysis and experimental results show that the proposed algorithm has high recovery efficiency and well recovery effect, can be effectively applied in industrial applications.

FULL-SCALE TESTS OF FLOOR SLABS OF LARGE-PANEL RESIDENTIAL BUILDINGS OF THE 97TH SERIES

The authors consider objects of large-panel residential buildings, namely floor slabs, in this study. In view of the fact that the existing design of the slabs was carried out according to the old technical and regulatory documentation to comply with the requirements of modern regulatory documents «StroyPanelKomplekt» proposed new design solutions for the floor slabs of 97 series. The main design features of the slabs after the change in design solutions are: increased cross-sectional area of the working reinforcement (from 6 mm to 8 mm), increased concrete protective layer up to 25 mm. Therefore, before the start of mass production of these slabs, full-scale tests were carried out by «StroyPanelKomplekt» together with the department «Construction production and geotechnics» of PNRPU. The tested slab P3-6-501 is a floor element for large-panel residential buildings of the 97th series. The slab in the building is supported on four sides by internal and external wall panels, concrete design class B15. The design class of the working fittings is A400. During the tests, the indicators necessary for assessing the strength, stiffness and crack resistance, as well as the nature of destruction were controlled, including: the values of the loads causing the controlled limit state; product deflections; crack opening width. To measure the deflections, we used measuring instruments and instruments with a scale division of 0.01 mm, namely, 6PAO deflection meters. To measure the width of the crack opening during the tests, an MPB-2 microscope with a scale of 0.05 mm was used. The test results are presented in this article.

The Stress Behaviour of Powered Vehicle Body

The stream around body (powered vehicle, transports, trucks) under typical working condition is basically fierce. It is regularly portrayed by substantial scale division and distribution areas, a mind boggling wake stream, long trailing vortices and cooperation of limit layer stream on vehicle and ground. In growing new street vehicle basic for planner for see completely its assembly of stream around to the vehicle. It will have impact on such important element as the state of vehicle, streamlined drag, fuel utilization, clamor generation and street dealing with. Generally, vehicle planner have picked up their comprehension of the wind current around a vehicle through broad breeze burrow testing. Body-on-outline is a vehicle development strategy a different body is fixed on a generally inflexible casing or body conveying in the motor & drivetrain. The first strategy for structure cars, body-on-outline development is currently utilized for the most part for fueled vehicle. Car streamlined features includes the investigation of optimal design of street vehicles. Its fundamental objectives are diminishing drag, limiting clamor outflow, improving efficiency, averting undesired lift powers and limiting different reasons for streamlined insecurity at high speeds. In the current project cfd analysis of powered vehicle’s outer body is done at 30kmph. Design of frame done using NX-CAD software and CFD analysis runs through Ansys CFD package.

Regulation of individual differences in recruitment behaviour within honey bee foraging groups

Division of labour is a hallmark of eusocial insect colonies, with different groups of workers engaged in different tasks at the same time. Foraging is a task done by older workers in honey bee colonies. Foragers use the waggle dance behaviour to inform and recruit nest mates to food sources in the environment. The recruitment process incorporates information about the food reward, the colony food stores and the environmental food availability and plays a major role in ensuring efficient exploitation of the food sources available to the colony. However, the role that individual foragers play in driving recruitment is largely unexplored. We observed the dance activity of individual foragers from the same foraging group and showed that there are consistent inter-individual differences within a foraging group leading to a division of labour in the recruitment activity. Next, we studied the effect of changing social interactions on these individual differences. Removing foragers from the group led to an increase in the dance activity of the group of remaining foragers. This was mainly driven by an increase in the dance activity of certain individuals within the foraging groups. In contrast, allowing recruits to join the foraging group had a strong negative effect on the dance activity of all the individual foragers. Our study shows that there is a fine scale division of labour in the recruitment activity within foraging groups and that this is further regulated by changing social interactions. Thus, a complex interplay between individual differences and social interactions drive recruitment activity in honey bees.

A Survey of Digital Transducer Instruments Used in the Weighing Industry - Part 2

It should be remembered that the information in these two articles surveying digital transducer instruments was written for the American market, but has been included in Measurement and Control to show what is available outside the UK. In fact some are also available here. The number of active digits is not necessarily an indication of the accuracy but of overall sensitivity of the instruments. If one is trying to compare these with European instruments, particularly to those approved to OIML or the BOT standards, the number of digits in these cases is restricted by the maximum error of the instrument. That is to say that if the instrument is being approved for 1 part in 3000 the error should not exceed 1 scale division. This can hardly apply to some of the instruments that are listed in Al Brendel's chart which show performances of 1 part in 40 000. The UK authorities would not normally expect to approve equipment better than 1 part in 5000, the norm being more like 1 part in 3500.

Some errors in gas analysis using the Haldane apparatus

1. The paper represents an attempt to estimate the error of the standard 10 ml. Haldane gas analysis apparatus under routine conditions of use.2. The ultimate error of the instrument under optimum conditions has been obtained from duplicate mercury calibrations of the same instrument and corresponds to s.d. = 0·013% gas. A significant day-to-day variation in calibration was found.3. The accuracy in routine use has been determined by replicate estimations of CO2 and O2 in air and from estimation of CO2 in designed experiments. The data show an error corresponding to s.d. = 0·027 to 0·13%. This is far larger than that described by Haldane.4. Examination of the distribution of terminal digits in burette readings shows that the smallest scale division is in fact not being divided into ten parts by the worker. Preference for certain digits varies with the individual, with time, and with the accuracy required.5. There is a marked tendency for a worker to obtain an ‘expected result’, whether this is derived from a previous estimation of the same sample or from knowledge of the expected result; such bias tends to reduce the apparent error of estimation. Bias of replication—‘prejudice error’—may play a part in many forms of measurement.6. The results and conclusions are discussed in relation to other published data on errors of measurement in general.