Fault Exploratory Data Analysis of Real-Time Marine Diesel Engine Data Using R Programming

2020 ◽  
pp. 185-197
Author(s):  
Cheng Siong Chin ◽  
Nursyafiqah Binte Nazli
Keyword(s):  
Data Analysis ◽  
Diesel Engine ◽  
Real Time ◽  
Exploratory Data Analysis ◽  
Marine Diesel Engine ◽  
Marine Diesel ◽  
Exploratory Data ◽  
R Programming

scholarly journals Exploratory Data Analysis Grup Chat Whatsapp Mata Kuliah Manajemen Pembiayaan Pendidikan (Studi Kasus di Pascasarjana Universitas Negeri Semarang)

2021 ◽  
Vol 2 (1) ◽  
pp. 44-49
Author(s):  
Izza Hasanul Muna
Keyword(s):  
Data Analysis ◽  
Real Time ◽  
Exploratory Data Analysis ◽  
E Learning ◽  
Exploratory Data

Dewasa ini, whatsapp (WA) telah menjadi sosial media yang sangat penting dalam kegiatan berkomunikasi dan pembelajaran daring (e-learning).. Hal ini tidak lepas dari fitur dan fungsinya yang beranekaragam, seperti mengirim pesan, berbagi file, video, suara, dan bahkan dapat berbagi lokasi secara real-time. Penelitian ini bertujuan untuk menganalisis konten grup chat whatsapp pada mata kuliah manajemen pembiayaan pendidikan tahun 2020 di pascasarjana Universitas Negeri Semarang. Selain itu, penelitian ini juga mempunyai tujuan lain yaitu mengeksplorasi tingkat penggunaan WA oleh anggota grup. Jenis penelitian ini merupakan penelitian deskriptif kuantitatif yang analisisnya dilakukan menggunakan bantuan bahasa pemrograman Python. Hasil penelitian menunjukkan bahwa dalam 1 semester, terdapat 14 anggota grup, 606 pesan, 44350 kata, 7 link website, dan 24 karakter emoji dengan total frekuensi sebanyak 122. Adapun kata yang paling sering digunakan oleh pengguna grup adalah kata “nggih pak”. Kata ini merupakan sebuah kata dalam bahasa jawa yang digunakan apabila seseorang menyetujui sesuatu. Berdasarkan hasil penelitian, juga dapat diidentifikasi siapa anggota grup teraktif, rata – rata pesan yang dikirim oleh masing – masing anggota grup, dan kapan hari teraktif grup. Melalui analisis konten, dapat diperoleh informasi – informasi penting yang dapat membantu menunjang proses pembelajaran e-learning.

Development of a real-time two-stroke marine diesel engine model with in-cylinder pressure prediction capability

2017 ◽  
Vol 194 ◽  
pp. 55-70 ◽  
Author(s):  
Yuanyuan Tang ◽  
Jundong Zhang ◽  
Huibing Gan ◽  
Baozhu Jia ◽  
Yu Xia
Keyword(s):  
Diesel Engine ◽  
Real Time ◽  
Marine Diesel Engine ◽  
Cylinder Pressure ◽  
Engine Model ◽  
Marine Diesel ◽  
Prediction Capability

Marine Diesel Engine Simulator for Self-Propulsion Test in Evaluating the Fuel Saving Rate

2015 ◽  
Vol 799-800 ◽  
pp. 870-875
Author(s):  
Sunarsih ◽  
Izzuddin Nur ◽  
Agoes Priyanto
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Diesel Engine ◽  
Real Time ◽  
The Self ◽  
Marine Diesel Engine ◽  
Saving Rate ◽  
Fuel Saving ◽  
Rotating Speed ◽  
Marine Diesel

As the vessel operates in the rough open seas, a marine diesel engine simulator which engine rotation is controlled to transmit through propeller shaft is a new methodology for the self-propulsion tests to track the fuel saving in a real time. Considering the circumstance, this paper presents the real time of marine diesel engine simulator system to track the real performance of a ship through computer-simulated model. A mathematical model of marine diesel engine and the propeller are used in the simulation to estimate fuel rate, engine rotating speed, thrust and torque of the propeller thus achieve the target vessel’s speed. The input and output are real time control system of fuel saving rate and propeller rotating speed representing the marine diesel engine characteristics. The self-propulsion test simulation results in calm water [7] were compared to validate the present marine diesel engine simulator. The present simulator then was used to evaluate the fuel saving by employing a new mathematical model of turbocharged marine diesel engine and was applied to a full scale target vessel. The control system developed will be beneficial for users as to analyze different condition of vessel’s speed to obtain better characteristics and hence optimize the fuel saving rate.

Simulation on Model Performance of Ship’s Diesel Engine Propulsion in Calm Water

2014 ◽  
Vol 69 (7) ◽  
Author(s):  
NurIzzuddin NurIzzuddin ◽  
Sunarsih Sunarsih ◽  
Agoes Priyanto ◽  
Rahimuddin Rahimuddin
Keyword(s):  
Control System ◽  
Diesel Engine ◽  
Real Time ◽  
Marine Diesel Engine ◽  
Real Time Control ◽  
Rotating Speed ◽  
Time Control ◽  
Calm Water ◽  
Marine Diesel ◽  
Ship Speed

Ship performance is prevalently evaluated during calm water condition though contrarily the ships operated in actual rough sea environments. The paper elaborates a mathematical model of marine diesel engine propulsion system to estimate real performance of ships in calm water through the proposed computer-simulated model. A post Panamax container ship and LNG tanker are employed as target ships of this study. The analysis of the model includes propeller rotating speed and torque from which the required engine power is estimated to achieve the target speed. These input and output are real-time control system of propeller rotating speed reflecting the characteristics of marine diesel engine. The result has established ultimate limit of affecting features of a real-time control system to control ship speed, power and propeller torque. Further use of the model is advantageous to analyse different condition of ship speed for finding better design characteristics.

Graphical Exploratory Data Analysis for Categorical Longitudinal and Time Series Data

2013 ◽  
Author(s):  
Stephen J. Tueller ◽  
Richard A. Van Dorn ◽  
Georgiy Bobashev ◽  
Barry Eggleston
Keyword(s):  
Time Series ◽  
Data Analysis ◽  
Exploratory Data Analysis ◽  
Time Series Data ◽  
Series Data ◽  
Exploratory Data

Covid-19 Cases in India: A Visual Exploratory Data Analysis Model (Preprint)

2020 ◽  
Author(s):  
Jayesh S
Keyword(s):  
Data Analysis ◽  
Exploratory Data Analysis ◽  
Case Fatality ◽  
Public Health Emergency ◽  
Virus Spread ◽  
Analysis Model ◽  
Case Fatality Ratio ◽  
First Case ◽  
Exploratory Data ◽  
The Government

UNSTRUCTURED Covid-19 outbreak was first reported in Wuhan, China. The deadly virus spread not just the disease, but fear around the globe. On January 2020, WHO declared COVID-19 as a Public Health Emergency of International Concern (PHEIC). First case of Covid-19 in India was reported on January 30, 2020. By the time, India was prepared in fighting against the virus. India has taken various measures to tackle the situation. In this paper, an exploratory data analysis of Covid-19 cases in India is carried out. Data namely number of cases, testing done, Case Fatality ratio, Number of deaths, change in visits stringency index and measures taken by the government is used for modelling and visual exploratory data analysis.

Sign in / Sign up

Export Citation Format

Share Document