scholarly journals RANCANG BANGUN SORTIR DAN HITUNG LEMBAR KERTAS A4 OTOMATIS MENGGUNAKAN SENSOR LDR DAN APLIKASI BLYNK

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Hanna Alifia Putri Riyanto
Keyword(s):  
Counting Process ◽  
The Other ◽  
Servo Motor ◽  
Angular Movement ◽  
Motor Test ◽  
Good Paper ◽  
White Sheet ◽  
Light Resistance ◽  
Resistance Value ◽  
Paper Quality

The sorter and counting process of sheets paper still manually in several companies. So, in this study designed a tool that can automatically sorter and count paper based of paper quality. Paper is said to be suitable for use when there are no stains on a clean white sheet of paper, and on the other hand, the paper is said to be unfit for use when the paper is stained with ink. In this research, the LDR sensor functions as a sorting sensor, the resistance value received on the paper will be calculated. When the LDR captures a light resistance value less than 75, the paper will be categorized as a good paper quality, and vice versa when the LDR captures a light resistance of more than 75, the paper will be categorized as a dirty paper quality. next process the paper will be pushed to each shelf, this process involves a photodiode as a paper counter. When the paper passes through the photodiode, the process will be counted as one cycle or one paper. Furthermore, the paper will be separated into different racks according to the paper quality using the MG955 servo motor. In the servo motor test, the angular movement is 10º for good paper racks and 60º for dirty paper racks. After going through the process, the overall results of the paper data will be sent to NodeMCU ESP8266 and displayed on the blynk application. Keywords: LDR, Photodioda, Motor Servo, NodeMCU ESP8266.

scholarly journals Enumeration of certain classes of antichains

2015 ◽  
Vol 97 (111) ◽  
pp. 69-87
Author(s):  
Goran Kilibarda
Keyword(s):  
Counting Process ◽  
The Other

An antichain is here regarded as a hypergraph that satisfies the following property: neither of every two different edges is a subset of the other one. The paper is devoted to the enumeration of antichains given on an n-set and having one or more of the following properties: being labeled or unlabeled; being ordered or unordered; being a cover (or a proper cover); and finally, being a T0-, T1- or T2-hypergraph. The problem of enumeration of these classes comprises, in fact, different modifications of Dedekind?s problem. Here a theorem is proved, with the help of which a greater part of these classes can be enumerated. The use of the formula from the theorem is illustrated by enumeration of labeled antichains, labeled T0-antichains, ordered unlabeled antichains, and ordered unlabeled T0-antichains. Also a list of classes that can be enumerated in a similar way is given. Finally, we perform some concrete counting, and give a table of digraphs that we used in the counting process.

Relaxation and Neuromuscular Tension Control and Changes in Motor Performance under Induced Tension

1973 ◽  
Vol 36 (1) ◽  
pp. 185-186 ◽  
Author(s):  
Dawn S. Chaney ◽  
Lois Andreasen
Keyword(s):  
Respiration Rate ◽  
Motor Performance ◽  
Experimental Treatment ◽  
Tension Control ◽  
The Other ◽  
Control Group ◽  
Motor Test ◽  
Accuracy Stress ◽  
Verbal Threat ◽  
Speed And Accuracy

The purpose of this study was to determine the effects of specific instructions in relaxation and neuromuscular tension control on changes in the performance of a motor test under stress. The motor test was throwing darts at a specific target for speed and accuracy. Stress was induced by a verbal threat of failure. GSR, respiration rate, and EMG recordings were obtained from each S on initial and final tests. The verbal threat produced stress in all Ss ( p = .01). Ss in the exercise control group had a significantly lower respiration rate than the other Ss. The experimental treatment given to the relaxation group did not have a significant influence in reducing neuromuscular tensions during the performance of the motor test.

scholarly journals Sistem Otomatisasi Sirkulasi dan Penggantian air Kolam Menggunakan Arduino Uno untuk Peternakan Ikan di Sukabangun Kabupaten Ketapang

2019 ◽  
Vol 11 (2) ◽  
pp. 171-179
Author(s):  
Syarif Ishak Alkadri ◽  
Yudi Chandra
Keyword(s):  
Minimum Distance ◽  
Ph Value ◽  
Ultrasonic Sensor ◽  
Maximum Distance ◽  
Turbid Water ◽  
Servo Motor ◽  
Automatic Feeder ◽  
Water Ph ◽  
Value Of Water ◽  
Resistance Value

This tool detects turbidity by paying attention to the resistance value on the LDR sensor that is the less light received by the LDR sensor, the higher the resistance so that at some level will appear on the LCD whether classified as turbid, very turbid, clear or very clear. While the drain pump will work if the water is considered unhealthy for fish, for example, turbid water is even very turbid and the pump will die if the ultrasonic sensor has got the maximum distance ie in this system it is> 21 cm Filling pump will work if pump 1 is dead and will die if has reached the minimum distance of <= 7 cm. While for the PH value can be seen through a probe dipped in the pool and the results can be known on the LCD, if the water is detected to have an abnormal PH then the pump will drain automatically until the water PH state becomes normal and the automatic feeder system is by adjusting the delay of the servo motor. From the tests carried out, it was found that this tool can detect the level of turbidity of water whether the water is classified as very turbid, turbid, less clear, clear and if what is detected is very turbid then the pump will drain and refill automatically. This tool can also detect the PH value of water which will command the drain pump to work if the water PH is not normal as programmed. and can feed automatically whether 3,4,5 or 6 times a day.

Electronically Reconfigurable Notch Filter for Cognitive Radios Application

2016 ◽  
Vol 13 (10) ◽  
pp. 6901-6905
Author(s):  
Ying Jiang Guo ◽  
Xiao Hong Tang ◽  
Kai Da Xu
Keyword(s):  
Frequency Tuning ◽  
Cognitive Radios ◽  
Notch Filter ◽  
The Other ◽  
Notched Band ◽  
Varactor Diodes ◽  
Rejection Level ◽  
The One ◽  
5 Ghz ◽  
Resistance Value

An electronically reconfigurable notch filter for cognitive radios application is presented. By loading the stub-loaded resonator along the transmission line, two notched bands are created. Central frequency tuning of one notched band is realized by using the silicon varactor diodes, while the other notched band remains almost unchanged during tuning. Bias Ts and the resistors having high resistance value are adopted to function as DC paths for the varactors. A tuning range of 1.92–2.92 GHz for the one notched band with average insertion loss 2.4 dB across the passband (0.1–5 GHz) is achieved, and the other notched band is used to suppress the WiMAX signal (3.3– 3.8 GHz). The highest rejection level of the tunable notched band is 21.5 dB, while the static notched band shows rejection of more than 30 dB at 3.66 GHz.

scholarly journals A design of HDPE flexible spline of harmonics gear

2018 ◽  
Vol 192 ◽  
pp. 01030
Author(s):  
Pholchai Chotiprayanakul ◽  
Nattakul Khamsri ◽  
Neeracha Kumjaroen
Keyword(s):  
Planetary Gear ◽  
Gear Ratio ◽  
Gear Train ◽  
The Other ◽  
Servo Motor ◽  
Strain Wave ◽  
Important Method ◽  
Physical Requirement ◽  
Wave Drive ◽  
Small Robot

In a design of a small robot, selecting a servo-motor is the most important method in designing process. Common miniature servo motors for small robots normally use conventional gear train set or planetary gear set. Gear train and planetary gear give very low gear ratio whereas its weight is too heavy. On the other hand, Harmonic gear system, which is developed from strain wave drive gearing, gives better the highest gear ratio per weight than those two gear systems. In this paper, a plastic flexible spline gear is presented in order to replace a thin metal spline. The plastic flexible spline gear is designed under gear physical requirement and servo-motor properties. The spline thicknesses are varied in a range of 1 to 4 millimetre and simulations on strength, fatigue, and torque requirement are made to verify the designs.

scholarly journals Difference in Motor Skills between Active and Inactive Children

2021 ◽  
Vol 5 (1) ◽  
pp. 13-16
Author(s):  
Aleksandar Stojmenovic ◽  
◽  
Nikola Prvulovic ◽  
Borko Katanic ◽  
◽  
...  
Keyword(s):  
Motor Skills ◽  
Motor Development ◽  
The Other ◽  
Gross Motor ◽  
Gross Motor Skills ◽  
Gross Motor Development ◽  
Motor Test ◽  
Significant Difference ◽  
Limb Coordination ◽  
Standard Tests

This research aimed to determine the differences in motor skills between active and inactive children at the age of 9 using the tests of motor skills BOT-2 and the tests of gross motor skills TGMD-2. The total number of respondents 40 (20 active and 20 inactive) was made up of students from the 3rd grade of elementary school Mika Antić, Niš. The age of the respondents is 9±0.5 years for both sexes. Мotor status was assessed by standard tests of motor skills. Motor skills were assessed with a battery of BOT-2 tests was used to assess motor skills, subtests of speed and agility, and upper limb coordination. A battery test of gross motor development (TGMD-2), subtests for the assessment of locomotor skills, manipulative skills, and the overall result on the test of gross motor skills. А statistically significant difference was found in favor of active children versus inactive in two variables total score on gross motor test-TGM (p=0.036) and level of physical activity-TOTPA (p=0.00) while the other variables were not statistically significant (p>0.05). The general conclusion is that there are no differences in motor skills between active and inactive children.

scholarly journals Bender Gestalt Visual-Motor test – Sistema de Pontuação Gradual (B-SPG): A study with different samples

2013 ◽  
Vol 23 (55) ◽  
pp. 179-185 ◽  
Author(s):  
Ana Paula Porto Noronha ◽  
Fabian Javier Marin Rueda ◽  
Acacia Aparecida Angeli dos Santos
Keyword(s):  
Scoring System ◽  
Minas Gerais ◽  
Sao Paulo ◽  
The Other ◽  
São Paulo ◽  
Normative Sample ◽  
Motor Test ◽  
The Mean ◽  
Visual Motor

The aim in this study was to analyze differences between children’s performances on the Bender – Sistema de Pontuação Gradual (B-SPG) [Gradual Scoring System] in the states of Minas Gerais and Paraíba, and to compare them with the results presented in the test manual. The participants were 511 children, both sexes, aged 6-10 years ( M = 8.21, SD = 1.33), and 50.7% male. The children were from two states, Minas Gerais ( n = 298, 58.3%) and Paraiba ( n = 213, 41.7%). The SPG was administered collectively in classrooms. The mean B-SPG scores between the children from Minas Gerais and Paraiba were very similar and not statistically significant. Regarding the comparison between the two states and the normative sample, three results were significant, two of which favored the children from São Paulo and the other the children from Minas Gerais and Paraíba, showing little variation in the results of the B-SPG.

Innovative Design of Device of Conical Deep-Hole Boring

2012 ◽  
Vol 271-272 ◽  
pp. 969-973
Author(s):  
Da Guo Yu ◽  
Xing Quan Shen ◽  
Ji Ming Wang
Keyword(s):  
High Precision ◽  
Principal Axis ◽  
Pulse Generator ◽  
The Other ◽  
Work Piece ◽  
Deep Hole ◽  
Servo Motor ◽  
Innovative Design ◽  
Gun Drill ◽  
The One

The device is designed for the solutions of the ready-deformation, hard feeding of the boring rod of conical deep-hole boring, and of impossible boring by the gun drill, BTA drill and DF drill during conical deep-hole boring. The central hole of the boring rod is fitted with boring cutter, rod with double cones, cylindrical rod, threaded and splined rod. The front cone of the rod with double cones is set through the conical hole of boring cutter and reaches only one side of the hole. The rear one of the rod with double cones is in contact with the one end of the springing rod of which the other reaches the surface of bored work piece. The industrial endoscope is set within the hole drilled in boring rod. The servo motor, by the way of NC device, is linked with pulse generator, which connects the principal axis of lathe. The design is advantaged with a springing rod which prevents the deformation of boring rod, and with servo motor, NC device, and industrial endoscope supporting conical deep-hole boring of high precision.

scholarly journals Cloth Folding Machine

2020 ◽  
Vol 8 (6) ◽  
pp. 4492-4495
Keyword(s):  
The Other ◽  
Servo Motor ◽  
Household Appliance

The cloth folding machine is an easy and useful process in this world of tortoise and rabbit race. The machine’s operation requires tiny human contribution, which is significantly useful for people who are not keen to arrange their clothes. The idea of this project is to fold up cloth by just pressing a switch. In this project, we used five separate plates with the center plate as fixed and the other four plates are movable. This plate follows a pattern that is programmed in the microcontroller. ATMEGA8 Microcontroller is used. Four servo motors are connected to the microcontroller. And these servo motors are connected to the four movable plates.100KΩ preset is used to change the angle for servo motor.100µF and 104 capacitors are used for charging. It will consist of two folding patterns for shirts and pants. Based on the purpose of design, a cloth folding machine is a household appliance.

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