scholarly journals Desain Rancang Bangun Trainer Kit untuk Menentukan Pengaruh Jenis Bahan Tali Terhadap Cepat Rambat Gelombang

2021 ◽  
Vol 5 (1) ◽  
pp. 33-42
Author(s):  
Linggar Ayu Octaviani ◽  
Sri Handono Budi Prastowo ◽  
Firdha Kusuma Ayu Anggraeni
Keyword(s):  
Wave Propagation ◽  
Wave Velocity ◽  
Transverse Wave ◽  
Power Supply ◽  
Research Method ◽  
The Other ◽  
Proximity Sensor ◽  
Development Method ◽  
Is Development ◽  
Arduino Uno

The aim of the research is to establish the design of the trainer kit project to determine the effect of the rope material type toward the rope wave velocity and the effect of the type of nylon, raffia, polyester, hemp and chinnese satin rope materials on the velocity of rope wave propagation. The research method used is the Research and Development method using  Nieveen design. The development of trainer kit uses an Arduino UNO microcontroller equipped with a proximity sensor HC-SR04 for measuring the rope wavelength. One point of the rope is tied with a timer ticker and the other is tied to a hanging load which is resting on a pulley. When the power supply is turned on, the timer ticker will vibrate to move the rope that has been tied. The rope will form a transverse wave. The result of this research, the design of trainer kit is development by using micro-controlled Arduino UNO and a proximity sensor HC-SR04 can be declared as a valid result. There are mass convention impacts of the type of rope likely nylon, polyester, raffia, hemp and chinese satin toward the rope wave velocity.

Rancang Bangun Sistem Informasi Zakat Infaq Shodaqoh Menggunakan Metodologi Extreme Programming

2018 ◽  
Vol 9 (1) ◽  
pp. 31-42
Author(s):  
Rysa Sahrial
Keyword(s):  
Information System ◽  
The Other ◽  
Extreme Programming ◽  
Limited Time ◽  
Limited Information ◽  
Research Information ◽  
Development Method ◽  
Know How ◽  
Five Factors ◽  
Research Information System

Poverty is one continuing social issue which is hard to solve. Dealing with this problem, Islam has already had the alternative solution that is tithe (Zakat). Zakat is implemented to decrease economy imbalanced appeared in the society. While in fact, not all the Moslem pay Zakat. There are five factors as the reason why Moslem didn’t do that. First, some Muzakki wants to deliver his zakat directly.Seconde, not all Muzakki know how much Zakat must be paid. The other factors are Limited information about Mustahik home, limited time that Muzakki have to deliver his Zakat directly and the easiness to report Mustahik data. Dealing with those factors, it is required to have an information system which can make Muzakki meets Mustahik. In this research, information system application used Extreme Programming (XP) development method. XP method is required to program a system which will be made by accomodating the users’ needs and expectations.

Teks Anekdot dalam Cerita Lisan Yong Dollah Pewarisan Orang Melayu Sebagai Alternatif Pemilihan Bahan Ajar Bahasa Indonesia

GERAM ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 30-43
Author(s):  
Muhammad Mukhlis ◽  
Asnawi Asnawi
Keyword(s):  
Content Analysis ◽  
Research Method ◽  
The Other ◽  
Teaching Material ◽  
Generic Structure ◽  
Alternative Material ◽  
Descriptive Approach ◽  
Alternative Choice ◽  
Generic Structures ◽  
Bahasa Indonesia

This research is entitled as "Anecdotal Text in the Oral Story of Yong Dollah Inheritance of Malays as Alternative Choice for Indonesian Language Teaching Materials". It is inspired by the collection of Yong Dollah stories as the inheritance of Malays in Bengkalis Regency which contain of humor elements. In addition, the stories have the same characteristics with anecdotal text, so that it can be applied as teaching material for Indonesia Language subject in the school. This research method was content analysis of descriptive approach. This research was conducted during six months. The technique used to collect data were documentation and interview. The data of this study were the entire generic structure and language features of anecdotal texts contained in a collection of Yong Dollah stories which consisted of 11 stories. The result showed that as following. First, there are five texts contain of complete generic structures and six texts contain of incomplete generic structure which is coda part for data 2, 3, 5, 8, and 1. Second, about language features, there are four data contains of all language features of Anecdote text, but on the other side, there are seven incomplete language features in the texts. Third, the consideration of choosing Yong Dollah as alternative material for Indonesia Language subject refers to eight indicators that are conveyed based on teachers’ perception toward Anecdote text Yong Dolla. 55 % of number of teachers claim that these texts suitable to be implemented as teaching material, but 44% of them claim neutral, and 1% claim disagree on it.

scholarly journals Effects of Central Tube on Shape of Modal Duct of a Helicoid in a Simple Expansion Chamber

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Daniel Omondi Onyango ◽  
Robert Kinyua ◽  
Abel Nyakundi Mayaka
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Plane Wave ◽  
Acoustic Pressure ◽  
Three Dimensional ◽  
The Other ◽  
Expansion Chamber ◽  
Central Tube ◽  
Simple Expansion ◽  
Plane Wave Propagation

The shape of the modal duct of an acoustic wave propagating in a muffling system varies with the internal geometry. This shape can be either as a result of plane wave propagation or three-dimensional wave propagation. These shapes depict the distribution of acoustic pressure that may be used in the design or modification of mufflers to create resonance at cut-off frequencies and hence achieve noise attenuation or special effects on the output of the noise. This research compares the shapes of acoustic duct modes of two sets of four pitch configurations of a helicoid in a simple expansion chamber with and without a central tube. Models are generated using Autodesk Inventor modeling software and imported into ANSYS 18.2, where a fluid volume from the complex computer-aided-design (CAD) geometry is extracted for three-dimensional (3D) analysis. Mesh is generated to capture the details of the fluid cavity for frequency range between 0 and 2000Hz. After defining acoustic properties, acoustic boundary conditions and loads were defined at inlet and outlet ports before computation. Postprocessed acoustic results of the modal shapes and transmission loss (TL) characteristics of the two configurations were obtained and compared for geometries of the same helical pitch. It was established that whereas plane wave propagation in a simple expansion chamber (SEC) resulted in a clearly defined acoustic pressure pattern across the propagation path, the distribution in the configurations with and without the central tube depicted three-dimensional acoustic wave propagation characteristics, with patterns scattering or consolidating to regions of either very low or very high acoustic pressure differentials. A difference of about 80 decibels between the highest and lowest acoustic pressure levels was observed for the modal duct of the geometry with four turns and with a central tube. On the other hand, the shape of the TL curve shifts from a sinusoidal-shaped profile with well-defined peaks and valleys in definite multiples of π for the simple expansion chamber, while that of the other two configurations depended on the variation in wavelength that affects the location of occurrence of cut-on or cut-off frequency. The geometry with four turns and a central tube had a maximum value of TL of about 90 decibels at approximately 1900Hz.

Application of Maple on Solving the Differential Problem of Rational Functions

2013 ◽  
Vol 479-480 ◽  
pp. 855-860
Author(s):  
Chii Huei Yu
Keyword(s):  
Problem Solving ◽  
Research Methods ◽  
Research Method ◽  
Rational Functions ◽  
The Other ◽  
Mathematical Software ◽  
Differential Problem ◽  
Binomial Theorem ◽  
Other Hand ◽  
Derivatives Of

This paper uses the mathematical software Maple as the auxiliary tool to study the differential problem of four types of rational functions. We can obtain the closed forms of any order derivatives of these rational functions by using binomial theorem. On the other hand, we propose four examples to do calculation practically. The research methods adopted in this study involved finding solutions through manual calculations and verifying these solutions by using Maple. This type of research method not only allows the discovery of calculation errors, but also helps modify the original directions of thinking from manual and Maple calculations. For this reason, Maple provides insights and guidance regarding problem-solving methods.

scholarly journals Electronic Hover Craft

2021 ◽  
Vol 9 (VI) ◽  
pp. 4343-4350
Author(s):  
G. Jayanth Kumar
Keyword(s):  
Power Supply ◽  
Senior Citizen ◽  
Forward Direction ◽  
Current Version ◽  
Reliable System ◽  
Fire Brigade ◽  
Battery Power ◽  
The People ◽  
Local Areas ◽  
Arduino Uno

Electronic hovercraft is a device which can easily move on sand, water, hill areas and also muddy places. The main reason behind this project is to rescue the people in the flooded region. Our Indian army forces like Indian army, Indian navy will have greater use of this project. For example coming to our local areas just recently happened these situation is in Hyderabad we got floods so many people lose their houses, property.so many people were injuired. There is no such reliable system to rescue there. In that one senior citizen was died due to the helpless situation these type of situation makes so hurting to us. In that cases these type of devices may save their lives. In this system we have Bluetooth, Arduino UNO, propellers, two navigation motors which can give right and forward moving directions. Considering the price, simple implementations this project proses a less cost compare to fire brigade. With the help of Bluetooth in distance we can operate the system. With driving manually we can operate. Due to this one person can be saved. Instead of a driver one extra person can save. By using Bluetooth Arduino control app we can send command to the Arduino. When we give command we can operate, navigate the device with the help of down propeller air fills in cushion with the help of back propeller it will move towards forward direction with this we can control the device navigation for this we have 12volt 3.5Amps Battery power supply. Amplified current version battery to drive the motors.

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