86 research outputs found
IDENTIFIKASI PENYEBAB TEKANAN KOMPRESI YANG RENDAH PADA MAIN ENGINE CYLINDER NO 2 DAN 3 DI MT. FORTUNE GLORY XLI DENGAN METODE SWOT
No full textRiska Dwi Saputro, 50134918 T, 2018 “Identification of the cause of low compression on main engine cylinder number 2 and 3 at MT Fortune Glory XLI with SWOT analysis method” Program Diploma IV, Teknika, Politeknik Ilmu Pelayaran Semarang, supervising professor I F. Pambudi Widiatmaka, ST., MT. and Supervising professor II DR. Capt. Sahabuddin Sunusi, MT., M.Mar.
Main engine at MT. Fortune glory XLI is a Diesel engine 2 tak with 6 cylinder. When sea voyage from Tg. Uban to Cilacap the exhaust gas of main engine has a high temperature increase. A high exhaust gas is visible on the thermometer contained in cylinders 2 and 3 which is normally between 300 – 400 0C reach over 5000C. Seen also on the monitor that the compression pressure cylinders 2 and 3 decreased from normally between 30 until 40 Kg/Cm2 to be less than 30 Kg/Cm2. In this case, author use SWOT analysis method, this methode use to solve thr problem based on some factor analysis, Strength, Weaknesses, Opportunity and Threats by using strategies that determined correspondence by result of SWOT analysis method sistematically. That goals to solve the problem based on strategy and critical succes factor on SWOT method. There are many causes of the effect of low compression pressure so the combustion on the cylinder not optimal, some of the causes of these causes include was broken piston rings, worn piston, worn cylinder liner, Etc. From several factors analyzed to derive a major factor of low compression pressure at MT. Fortune Glory XLI. After the analysis turned out low compression pressure caused a broken piston rings caused lubrication that is not optimally at cylinder liner. Because lack of lubrication causes direct friction between ring piston and cylinder liner and causing piston rings to wear out even cracked or broken. So the compression pressure become low and affects the performance of the main engine.
Keywords : Piston rings, Cylinder liner, Compression, Performance of main engin
PERBEDAAN POLA KEPEKAAN TERHADAP ANTIBIOTIK PADA Streptococcus pneumoniae YANG MENGKOLONISASI NASOFARING BALITA (Penelitian belah lintang pada balita yang tinggal di daerah tengah dan pinggiran kota Semarang)
No full textLatar Belakang S. pneumoniae merupakan salah satu penyebab utama terjadinya pneumonia. Kolonisasi S. pneumoniae terdapat pada saluran pernapasan. S. pneumoniae di nasofaring banyak dijumpai pada anak. Pemberian antibiotik merupakan salah satu kunci terapi pneumonia. Pengobatan infeksi S. pneumoniae menjadi lebih kompleks sehubungan dengan munculnya resistensi terhadap antibiotik. Penelitian ini bertujuan untuk mengetahui perbedaan prevalensi dan pola kepekaan terhadap antibiotik pada S. pneumoniae yang mengkolonisasi nasofaring balita di tengah dan pinggiran kota Semarang.
Metode Penelitian ini bersifat observasional analitik dengan pengambilan data secara cross sectional. Subyek penelitian adalah balita usia 6 – 60 bulan yang memenuhi kriteria inklusi. Sampel diwawancara dan dilakukan pengambilan swab nasofaring. Hasil swab nasofaring diidentifikasi jenis kumannya dan dilakukan tes kepekaan terhadap antibiotik dengan menggunakan disk diffusion method. Pembacaan sesuai dengan kriteria CLSI 2012.
Hasil Dari 174 subyek diperoleh prevalensi S. pneumoniae 13,2%. Terdapat perbedaan pola kepekaan yang bermakna terhadap antibiotik tetracycline pada S. pneumoniae yang mengkolonisasi nasofaring balita di daerah tengah dan pinggiran kota Semarang (p=0,040). Tidak terdapat perbedaan pola kepekaan yang bermakna terhadap antibiotik penisilin, erythromycin, vankomisin, levofloxacin, trimethoprim-sulfamethoxazole, multidrug resistant (p>0,05). Prevalensi pola kepekaan antibiotik keseluruhan didapatkan tetracycline (78,3%), trimethoprim-sulfamethoxazole (52,2%), penisilin (47,8%), erythromycin (17,4), vankomisin (8,7%), levofloxacin (8,7%), MDR (39,1%).
Simpulan Terdapat perbedaan bermakna pola kepekaan terhadap antibiotik tetracycline pada S. pneumoniae yang mengkolonisasi nasofaring balita yang tinggal di tengah kota lebih tinggi daripada balita yang tinggal di pinggiran kota Semarang.
Kata Kunci Streptococcus pneumoniae, pola kepekaan antibiotik, tetracyclin
ANALISA RISIKO OLAH GERAK KAPAL MASUK ALUR SUNGAI MUSI PADA MT. SULTAN MAHMUD BADARUDDIN II
No full textSaputro, Hanif Dwi, 49124416 N, Navigation risk analyzes entry ship at musi river
channel on MT. SULTAN MAHMUD BADARUDDIN II. Minithesis. Deck
Department, Program of Diploma IV, Politeknik Ilmu Pelayaran
Semarang. Adviser : I Capt. I Kadek Laju SH, MM., M.Mar., II Mr. Andy
Wahyu Hermanto, S.T., M.T.
In the process if the movement entered a narrow shipping channel in the
river, it takes a special skill and attention more than sailing on the high seas. Even
in the IMO's rules Colreg’s give special attention to Rule 9 of the narrow shipping
channel. Besides the issue of groove width and depth of the river, busy traffic can
also cause danger to the ship, such as the danger of collision and ran aground.
Also in manouvering at musi river , we must know everything that must be
considered in manouvering at musi river and how the risk assessment process if
the manouver at musi river.
In writing this essay, the author describes the theory of the implementation
of the navigation entry Musi river channel in a research report and as a foundation
for solving the existing problems. The method used in this study is a qualitative
method that produces descriptive data in the form of written words of the object
under study. In this case the approach to collect data in the form of an object
through interviews with experienced resources, metode through literature, and the
data associated with the entry process if the motion Musi River channel on MT.
SULTAN MAHMUD BADARUDDIN II. Based on the results of research by the
author during a practice display at MT. SULTAN MAHMUD BADARUDDIN II,
there is a risk of the occurrence of such a problem finding aground, collision, and
other hazards on the ship motion exercise in Musi river channel. To the authors
wanted to find the cause of such a thing happened. To the authors will identify the
cause of it happening by using SHEL, this method consists of Software,
Hardware, Environment, and Live ware. Software is part of a non-physical
systems, including procedures and rules, Hardware is the equipment used
includes, Environment is the place where the activity takes place, and Live ware is
referring to every human component of the system in a relational aspects,
management, control and communication.
Having identified the causes of risk when ship motion exercise in Musi
River channel, can we then do a safety assessment to look for things that have a
risk that cannot be tolerated during the navigation process. With this assessment's
salvation, then each crew will be more careful in every action taken and make
every decision in motion exercise safely, effectively, and eficient. By knowing the
things that cannot be tolerated, it can be done mitagasi risk, which is to reduce or
even completely eliminate the risk that may occur during the process if the
motion. So the purpose of navigating a safe, fast, and right can be realized.
Key words: Identification of risk when manaouver on the river
Limited memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) method for the parameter estimation on geographically weighted ordinal logistic regression model (GWOLR)
No full textR programming for parameters estimation of geographically weighted ordinal logistic regression (GWOLR) model based on Newton Raphson
No full textEvaluation and selection of 3PL provider using fuzzy AHP and grey TOPSIS in group decision making
No full textAnalisis bibliometrika produktivitas pengarang artikel jurna berkala arkeologi dengan menggunakan dalil hukum lotka
No full textThis paper aim to present the result of research to analyse the level of author productivity in Berkala Arkeologi journal. The approach that I use is Lotka Law. The law says that if among a hundred people can produce one article, then there will be a quarter of them who produce two articles, there will be one ninth of them will produce three articles, and there will be one sixteenth of them produce 4 articles and so on. This is called the inverse square law of Lotka about author productivity. This paper also describes the statistical methods used to test the correlation between the author and the amount of articles produced, K-S test, a statistical test that is classified into Nonparametric Statistics, used to test the degree of closeness of two sets of data or two distribution (Goodness of fit). From the result this study the author of the Berkala Arkeologi journal in this years 1980-2009 is 138 people. Articles written as many as 392 articles. Based on calculations by the law of Lotka it is found that the productivity of authors for each article is a result of 44 816%, the author of two articles which generate as much as 18,003%, the author of many articles as 10.560% produces 3 and so on
ANALISIS BIBLIOMETRIKA PRODUKTIVITAS PENGARANG ARTIKEL JURNAL BERKALA ARKEOLOGI DENGAN MENGGUNAKAN DALIL HUKUM LOTKA
No full textThis paper aim to present the result of research to analyse the level of author productivity in Berkala Arkeologi journal. The approach that I use is Lotka Law. The law says that if among a hundred people can produce one article, then there will be a quarter of them who produce two articles, there will be one ninth of them will produce three articles, and there will be one sixteenth of them produce 4 articles and so on. This is called the inverse square law of Lotka about author productivity. This paper also describes the statistical methods used to test the correlation between the author and the amount of articles produced, K-S test, a statistical test that is classified into Nonparametric Statistics, used to test the degree of closeness of two sets of data or two distribution (Goodness of fit). From the result this study the author of the Berkala Arkeologi journal in this years 1980-2009 is 138 people. Articles written as many as 392 articles. Based on calculations by the law of Lotka it is found that the productivity of authors for each article is a result of 44 816%, the author of two articles which generate as much as 18,003%, the author of many articles as 10.560% produces 3 and so on
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