Detection method for stability of microcontroller accessories based on biosensor

Author(s):  
Yan Ren ◽  
Jiayong Liu

In order to solve the problem of poor accuracy of traditional microcontroller attachment stability testing method, a microcontroller attachment stability testing method based on biosensor was designed to solve the existing problems. The reliability test index of the microcontroller is established, then the interference of the microcontroller accessory is detected and responded, and the interference detection signal of the microcontroller accessory is selected. The process design of stability detection of microcontroller accessories based on biosensor is completed. The experimental results show that the stability detection method based on biosensor designed in this paper can ensure the stability detection accuracy of microcontroller accessories above 80%, which is more accurate than traditional methods. It can be used to evaluate the stability, reliability and performance of microcontroller accessories in long-term operation.

Author(s):  
Klaus-Dieter Fröhner ◽  
Ze Li

Stability and instability are very important for the layout of real world processes concerning safety and health esp. when planned by scientists. The long‐term investigation of stability was carried out for the last ten years on the basis of the installation and the evaluation of an ergonomically designed outdoor illumination. In the depicted dynamic situation the lighting design influences directly visual discomfort and human performance and in the end stability and instability. The improvement of the adaptation of luminance and its influence on the visual tasks after the rearrangement are presented and discussed. The effective factors on the visual capability and performance of workers, work efficiency and potential accidents in the night shift, and furthermore the accelerators and barriers for the stability of the project are analysed and discussed.


2014 ◽  
Vol 625 ◽  
pp. 530-535
Author(s):  
Kenji Yamaguchi ◽  
Yasuo Kondo ◽  
Satoshi Sakamoto ◽  
Mitsugu Yamaguchi ◽  
Ryoichi Nakazawa

Recently, the concern for the environment has been increasing rapidly. In machining processes, the treatment of water-soluble coolants waste has caused environmental problems. Water-soluble coolants contain surfactants, preservatives, and corrosion inhibitors for maintaining the stability and performance of the coolants. To reduce the management cost and environmental effect of water-soluble coolants, the authors have been studying a recycling system for water-soluble coolants. In the recycling system, oil-free recycle water is isolated from the coolant waste and reused as a diluent of the new coolant. The authors have been developing different types of water recovery methods for the recycling system, and the recovered water from the coolant waste has potential as a diluent for a new coolant. In this report, we focused on the amine (alkanolamine) -free water-soluble coolant. Some amine-free water-soluble coolants have been developed and are commercially available. A reduction in the environmental effect in the waste treatment of coolants is expected with amine-free coolants. We have demonstrated that the amine-free water-soluble coolant has equal or better cooling and lubricating performance compared with the conventional amine-containing coolant. In addition, the amine-free coolant shows good recyclability for the recycling system. The processing time of the recycling treatment of the amine-free coolant has been decreased by half with our recycling process compared with the conventional amine-containing coolant. In this report, we examined the stability, cooling performance and lubricating performance of the recycle amine-free water-soluble coolant in long term operation. The recycle amine-free water-soluble coolant is operated in a 3-axis machining center for several months. We observed concentration, pH, corrosion inhibition performance, cooling performance, and lubricating performance of the coolant. The results from these experiments show the amine-free water-soluble coolant has the advantage to use in the recycling system for water-soluble coolant.


2020 ◽  
Vol 10 (2) ◽  
pp. 123-132
Author(s):  
Kristóf Szabó ◽  
György Hegedűs

The new generative design process that has emerged in recent years has become available in more and more software. With the classic rapid prototyping procedures, it was not possible to test the designed products during long-term operation. However, the advent of metal powder printing and additive technology already allows for the long-term testing of designed prototypes, and even, if the deviation from the required properties of the product is negligible, the production of the final products. As a result, with the generative design process, design engineers also can create products that seemed unthinkable so far.


Author(s):  
A. Shen ◽  
S. Zhou ◽  
S. Peng

<p><strong>Abstract.</strong> For the method of atmospheric detection based on multi-rotor UAV, the effects of flight safety and airflow on detection accuracy are analyzed. The detector mounted on the multi-rotor drone should be highly symmetrical and the center of gravity should be on the same vertical line as the center of gravity of the drone. Mounting the detector above the drone's fuselage will reduce the stability of the drone, and lowering it will improve stability, but for models with high stability, placing it below will affect the maneuverability of the drone. The airflow interference in the area where the detector can be placed near the fuselage is related to the drone: the faster the rotor speed, and the closer the rotor is to the fuselage, the stronger the airflow interference. At the same time, the influence of airflow disturbance on temperature and humidity has a gradual process. Waiting for a period of time after starting the drone can change the error into a fixed error for post-processing. This method was used to detect a pollution process and achieved good results.</p>


2020 ◽  
Vol 77 (9) ◽  
pp. 681-689
Author(s):  
Sixtine Gilliot ◽  
Morgane Masse ◽  
Frédéric Feutry ◽  
Christine Barthélémy ◽  
Bertrand Décaudin ◽  
...  

Abstract Purpose Midazolam is a benzodiazepine derivative commonly used in intensive care units to control sedation. Its use requires dilution of a 5-mg/mL commercial solution to a target concentration of 1 mg/mL. A study was conducted to evaluate the stability of diluted ready-to-use 1-mg/mL midazolam solutions over 365 days when stored in cyclic olefin copolymer vials or polypropylene syringes. Methods A specific stability-indicating high-performance liquid chromatography coupled with UV detection method was developed for midazolam hydrochloride and validated for selectivity, linearity, sensitivity, precision, and accuracy. Three storage conditions were tested: –20°C ± 5°C, 5°C ± 3°C, and 25°C ± 2°C at 60% ± 5% relative humidity. Half of the vials were stored upside down to test for the absence of interaction between midazolam and the stopper. Particle contamination, sterility, and pH were assessed. Results The limit of stability was set at 90% of the initial concentration. After 1 year’s storage at –20°C and 5°C, concentrations remained superior to 90% under all storage conditions. At 25°C, stability was maintained up to day 90 in syringes (mean [SD], 92.71% [1.43%]) and to day 180 in upright and upside-down vials (92.12% [0.15%] and 91.57% [0.15%], respectively). No degradation products were apparent, no variations in pH values were detected, and containers retained their sterility and conformity with regard to any specific contamination during the study. Conclusion The evaluated 1-mg/mL midazolam solution was stable over a 1-year period when stored at a refrigerated (5°C) or frozen (–20°C) temperature in both vials and syringes; with storage at 25°C, the stability duration was lower. The preparation of ready-to-use midazolam solutions by a hospital pharmacy is compatible with clinical practice and could help to decrease risks inherent in dilution in care units.


2021 ◽  
Vol 2133 (1) ◽  
pp. 012020
Author(s):  
Xiaoying Wang

Abstract Guide rail is widely used in various machine tools. It mainly plays the role of guidance and support. The geometric accuracy of the guide rail, especially the straightness accuracy, directly affects the stability of the machine tool and the accuracy of the workpiece. By analyzing the common detection methods, application scope and detection accuracy of straightness of guide rail parts, the application occasions and detection accuracy of each detection method are clarified. It provides a theoretical basis and guidance for testers to detect straightness and deal with errors.


2021 ◽  
Vol 20 (3) ◽  
pp. 234-242
Author(s):  
V. N. Sukhodoev

The problem of damping the noise on the track, arising from the movement of the train, is solved sufficiently but it is simple, if the rail with spacers is laid inside the longitudinally located band sleeper-mechanism. The result is a layered rail thread, consisting of belts: a rail tape with elastic spacers on three sides, a tie-mechanism tape and a ballast layer. The unity of the layers is carried out due to their own mass. This is the static track without external load. Rail compression is an effective property of rail tracks. It is formed in the sleeper mechanism under the influence of vertical forces with displacements and their horizontal derivatives. When loading the track, the compression is carried out repeatedly with subsequent unloading.n this case, each previous changes in the conditions in work of the track are taken into account in the subsequent cycle of loading and unloading. A rail track with a rail compression is a kind of self-adapting linear system, which is necessary with frequent changes in load and operating conditions for silent performance of a functional purpose. The specificity of this path is that the movement of the wheel creates rail vibration and noise, which are immediately damped by compression with damping. The balance between the occurrence of noise and its suppression is achieved by the ratio of the lengths of half-sleeper shoulders as a lever. The condition for the appearance of a shift of the compression forces in the direction from vertical shoulder of the half-sleepers is the unequal settlements of the horizontal shoulder of the L-shaped half-sleepers and its eccentric loading. As a result of the research, the advantages of a rail track with rail compression have been revealed, which is a guarantor of the stability of the design parameters during long-term operation of the track. The cost of a rail track with rail reduction is halved as a result of steel savings, lower labor costs and operational needs.


2021 ◽  
Vol 3 (1) ◽  
pp. 0210103
Author(s):  
Leonard Tijing ◽  
John Ryan Dizon ◽  
Gil Cruz Jr.

Solar-driven interfacial water evaporation (SWE) is considered as a promising sustainable solution for clean water production especially for remote and off-grid communities. Various approaches have been developed in the last decade to improve the evaporation and thermal efficiency of the system, and to make it more robust for long-term operation. In recent years, 3D printing has emerged as an attractive method to fabricate simple and complex absorber geometries for SWE. In this mini-review, we present the new developments of 3D-printed solar absorbers including the various designs, fabrication strategies, challenges and opportunities. This study hopes to provide more insights into the use of additive manufacturing for improving the absorber design and performance of SWE.


Author(s):  
Jonathan Laurence

This chapter addresses the achievements of state–mosque relations and the “incorporation” outcomes that can be measured so far. What is the stability and performance of Islam Councils across the countries? How have these policies conditioned integration outcomes and political moderation, and what impact do they have on the long-term prospects of Muslims' everyday integration in Europe? This chapter empirically traces the effects of European policy approaches and finds that they have had a dramatic effect on Muslim communities: their domestic orientation, their reformed organizational structures, their outspoken distancing from violence and radicalism, and their outward commitment to playing by the rules of the game. Host societies as well as Muslim community leaders—and the scope of their agendas—have been transformed by the experience of institutional integration.


2019 ◽  
Vol 55 (38) ◽  
pp. 5499-5502 ◽  
Author(s):  
Guoxiao Xu ◽  
Shuai Li ◽  
Jing Li ◽  
Zhao Liu ◽  
Ying Li ◽  
...  

By facilely utilizing an ionic cluster as a nano-reactor, a silica network can be targeted filled in Nafion to increase the PEMFC performance at elevated temperatures and low humidity. Moreover, the stability of Nafion can be improved for the long-term operation of PEMFC under harsh conditions.


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