Stochastic Characterisation of Ship Hull Damage in Collisions

2016 ◽  
Author(s):  
Abayomi Obisesan ◽  
Srinivas Sriramula ◽  
John Harrigan
Keyword(s):  
Goodness Of Fit ◽  
Sampling Technique ◽  
Ship Hull ◽  
Test Results ◽  
Input Design ◽  
Dog Bone ◽  
Indentation Tests ◽  
Bulbous Bow ◽  
Hull Damage ◽  
Basic Strength

This paper presents the probabilistic characterisation of basic variables of ship structures and their application in characterising ship hull response during collisions. 83 dog-bone samples from mild steel are tested until fracture by axial displacement and basic strength variable data are collected from their resulting stress-strain relations. The data are fitted with suitable probability density functions (PDFs), with the two best PDFs identified from Goodness-of-Fit (GoF) test results. In order to analyse response variability from ship hull collisions, indentation tests are done on six hull plate models by penetrating them with two bulbous bow models. A sampling technique is then used to select probable input design sets from the probabilistic characteristics derived for basic variables. These design sets are propagated through an automated nonlinear finite element (FE) simulation of the hull plate indentation to characterise hull plate response at the onset of rupture.

TOTAL ASSETS TURNOVER (TATO), SIZE, AND RETURN ONASSETS (ROA) ON PRICE EARNING RATIO (PER) (Food And Beverage are listed onIndonesia Stock Exchange2009-2012)

2013 ◽  
Author(s):  
Nailal Husna ◽  
Daniati Puttri
Keyword(s):  
Capital Market ◽  
Goodness Of Fit ◽  
Stock Exchange ◽  
Sampling Technique ◽  
Coefficient Of Determination ◽  
Test Results ◽  
Goodness Of Fit Test ◽  
Partial Regression Coefficient ◽  
Analysis Technique ◽  
Food And Beverage

This study aims to examine the factors TATO, Size, and ROA of Price Earning Ratio (PER) on food and beverage companies listed in Indonesia Stock Exchange in 2009 – 2012 which used the entire population of food and beverage companies listed in Indonesia Stock Exchange (BEI) in 2009- 2012,  totally 16 companies,  was conducted with a purposive sampling technique. This study usessecondary data obtained from the publication of Indonesian Capital Market Directory (ICMD). The analysis technique used  the technique of multiple linier regression analysis with E-views program, Goodness of Fit Test and using the t-statistic for testing the partial regression coefficient with the 5% confidence level. In the classical assumption test results showed that there were no deviations classical assumption, this shows that the available data has been qualified to use multiple linier regression model. The conclusion of this research are : the TATO, Size, and ROA variable has not significant effect on PER. Regression equation obtained is PER = 24,191 – 1,022 TATO – 0,498 Size - 0,258 ROA. Coefficient of determination (adjusted _2) is 0.010 or 1 % which means only 1 % of PER is influenced by the independent variables, whereas the remaining balance of 99,0% is explained by other variable not prensented in the study.

scholarly journals PENGARUH KARAKTERISTIK SOSIODEMOGRAFI TERHADAP SELF EFFICACY PEREMPUAN KELUARGA MISKIN DALAM MELAKSANAKAN USAHA EKONOMI PRODUKTIF DI SURAKARTA

2017 ◽  
Vol 10 (2) ◽  
pp. 275
Author(s):  
Suminah Suminah ◽  
Sunarru Samsi Hariadi ◽  
Sri Widodo ◽  
Sri Peni Wastutiningsih
Keyword(s):  
Self Efficacy ◽  
Goodness Of Fit ◽  
Formal Education ◽  
Multiple Linear Regression Model ◽  
Sampling Technique ◽  
Sociodemographic Characteristics ◽  
Test Results ◽  
Goodness Of Fit Test ◽  
Significance Level ◽  
Poor Households

This  study  aimed  to  analyze  the  influence  of  sociodemographic characteristics  to  the  self-efficacy  on  women  of  poor  households  (WPH)  in implementing  economically  productive  activities.  The  study  was  conducted  at Surakarta,  using  a  survey  approach.  Samples  were  taken  by  multistage  random sampling technique. Quantitative data were analyzed using multiple regression models. The  results  showed  that  the  factors  sociodemographic  characteristics:  age,  formal education, and the number of family dependents significant affect on self-efficacy of WPH  in  conducting  productive  business  at  significance  level  α  =  0.10,  whereas  the non-formal  education  and  long  effort  had  no  significant  affect.  Goodness  of  fit  test results  of  multiple  linear  regression  model  showed  that  the  sociodemographic characteristics collectively have the affect of 28.6 percent.

Optimization of Ship Hull Lines of Bulbous Bow by Using CFD Approach

2012 ◽  
Vol 510 ◽  
pp. 424-430
Author(s):  
Ya Nan Huang ◽  
Da Lu Liu ◽  
Feng Sheng Sun ◽  
Ming Xing Gao ◽  
Ya Zhang
Keyword(s):  
Optimization Design ◽  
Minimum Energy ◽  
Ship Hull ◽  
Test Results ◽  
Design Practice ◽  
Green Function Method ◽  
Average Wave ◽  
Cfd Method ◽  
Bulbous Bow ◽  
Transverse Area

The proposal of this investigation is the optimization design of bulbous bow-lines for a container vessel. The results of wave-making coefficients and relative data of wave-making field both from computation based on Green function method and Michell integral method are provided for 7 different designs of bulbous bow lines respectively in this paper. According to the minimum energy from the sample of average wave-making energy for each design of bulbous bow-lines, which is to be objective function in this computation, the geometric parameters for optimization lines of bulbous bow can be determined. Adopting CFD method, it is respectively calculated that the average wave energy change with the ahead extendable length of bulbous bow, the height above the baseline of bulbous bow and the transverse area of the bulbous bow at fore pole. By above three change curves, the optimization shape of the bulbous bow is gained. The resistance components and the wave-field for wave-making for ship hull by using CFD method have been validated based on corresponding model test results. Therefore, the optimized bulbous bow-lines can be used in the ship design practice.

FAKTOR PERSONAL YANG BERHUBUNGAN DENGAN KOMITMEN ORGANISASI PERAWAT RSUD EMBUNG FATIMAH BATAM

2020 ◽  
Vol 5 (3) ◽  
pp. 875
Author(s):  
Asfri Sri Rahmadeni
Keyword(s):  
Organizational Commitment ◽  
Turnover Rate ◽  
Sampling Technique ◽  
Hospital Nurses ◽  
Test Results ◽  
Personal Factors ◽  
High Turnover ◽  
Chi Square ◽  
Cross Sectional ◽  
Chi Square Test

<p class="Normal1"><em>Commitment is the attitude or behavior of likes or dislikes shown by someone against the organization at work. Indonesia is recorded as a nurse who has a low organizational commitment (76%) so it harms services. This phenomenon in the hospital can be seen from the indicator of the high turnover rate of nurses which reaches 30.9% which exceeds the standard &lt;5%. Many factors affect organizational commitment. The purpose of this study was to analyze the Personal Factors Associated with Organizational Commitment of Hospital Nurses. This study is a cross-sectional analytic study and purposive sampling technique with a sample of 59 nurses. Chi-Square test results obtained personal factors that have a relationship with organizational commitment Nurse Hospital is age with p = 0,000 and education with p = 0,000, personal factors not related to organizational commitment are gender p = 1,053 and years of service with p = 1,147. Hospitals should conduct research/surveys on Organizational Commitment periodically as an evaluation material in the context of the organization's development and development in the future</em>.</p>

Faktor yang Berhubungan dengan Penggunaan Partograf dalam Persalinan oleh Bidan Praktik Mandiri

2020 ◽  
Vol 2 (2) ◽  
pp. 72-80
Author(s):  
Niluh Nita Silfia
Keyword(s):  
Total Population ◽  
Sampling Technique ◽  
Population Data ◽  
Statistical Test ◽  
Influential Factor ◽  
Test Results ◽  
Cross Sectional ◽  
Factors Associated ◽  
Survey Results ◽  
Research Criteria

Partographs are guidelines for childbirth observations that will facilitate labor assistants in first identifying emergency cases and complications for mothers and fetuses. Preliminary survey at the Sigi Community Health Sub-Center (Pustu) of the 8 Pustu midwives found two midwives (25%) to complete a complete partograph, six midwives (75%) incomplete. The purpose of this study was to determine the determinant factors associated with the use of partographs in labor. The design of this study used observational analytic methods with a cross-sectional approach. 24 BPM survey results were obtained with 30 samples of midwives who met the research criteria and data completeness. The sampling technique was by the total population. Data analysis used logistic regression. The multivariate analysis results showed that APN training was the most influential factor in the use of partographs in labor by midwives. Statistical test results obtained a POR value of 37.7 (95% CI 12.1 - 60.2). This study suggests that midwives must have APN certificates to be valid in providing services.

Pengaruh Variasi Waktu Paparan Gelombang Ultrasonik dalam Mengurangi Jumlah Bakteri coliform pada Sampel Air Sungai Kahayan

2020 ◽  
Vol 4 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Neny Kurniawati, Kerelius, Sunariyati ◽  
Luqman Hakim, Dyah Ayu Pramoda Wardani, Widya Krestina ◽  
Dwi Tyas Setiawan, Ferry Purwanto, Diah K. Fatmala
Keyword(s):  
Water Treatment ◽  
River Water ◽  
Ultrasonic Wave ◽  
Exposure Time ◽  
Water Samples ◽  
Sampling Technique ◽  
Wave Exposure ◽  
Test Results ◽  
Time Data ◽  
Grab Sampling

Abstrak – Penelitian ini bertujuan untuk mengkaji pengaruh waktu paparan gelombang ultrasonik terhadap pengurangan jumlah koloni bakteri coliform pada sampel air sungai Kahayan. Pengambilan sampel air sungai dilakukan dengan teknik Grab Sampling menggunakan alat Kemmerer Sampler. Sampel air yang didapatkan diberikan paparan gelombang ultrasonik secara langsung, tanpa merubah kondisi lingkungan awal. Waktu paparan divariasikan pada 1 jam, 2 jam, 3 jam, 4 jam, dan 5 jam dengan frekuensi 40 kHz untuk memperoleh data waktu optimum. Uji coliform dilakukan dengan metode MPN, dengan tahapan uji pendugaan, uji penegasan, dan perhitungan koloni. Hasil uji MPN 24 jam setelah paparan menunjukkan bahwa penggunaan ultrasonik sebagai antibateri dapat optimum ketika diberikan paparan dengan waktu 3 jam, dengan efisiensi  96%. Kata kunci: antibakteri, coliform, ultrasonik, water treatment, sungai Kahayan  Abstract – This study aims to examine the effect of ultrasonic wave exposure time on reducing the number of coliform bacterial colonies in the Kahayan river water samples. River water sampling is done using the Grab Sampling technique using the Kemmerer Sampler tool. The water samples obtained were given direct ultrasonic wave exposure, without changing the initial environmental conditions. The exposure time is varied in 1 hour, 2 hours, 3 hours, 4 hours and 5 hours with a frequency of 40 kHz to obtain optimum time data. Coliform test was carried out by the MPN method, with the stages of the estimation test, affirmation test, and colony calculation. The MPN test results 24 hours after exposure showed that the use of ultrasonic as an antibody can be optimum when given exposure with a time of 3 hours, with an efficiency of 96%.Keywords : antibakterial, coliform, ultrasonic, water treatment, Kahayan river

Effect Of Leverage, Inflation And GDP To Share Price Pt. Astra Otoparts Tbk.

ProBank ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 17-21
Author(s):  
Heriyanta Budi Utama ◽  
Florianus Dimas Gunurdya Putra Wardana
Keyword(s):  
Gross Domestic Product ◽  
Stock Prices ◽  
Stock Price ◽  
Stock Exchange ◽  
Sampling Technique ◽  
Share Price ◽  
Domestic Product ◽  
Coefficient Of Determination ◽  
Test Results ◽  
Purposive Sampling

The purpose of this study was to obtain empirical evidence about the effect of leverage, inflation and Gross Domestic Product (GDP) of the share price at PT. Astra Autopart, Tbk. companies in Indonesia Stock Exchange in 2011-2015. The sampling technique in this study using a purposive sampling. With the technique of purposive  sampling, all the members of the research samples by criteria. Samples that meet the criteria are used research data. Then followed the classic assumption test and test hypotheses by linear regression. The results of this study demonstrate the regression results in regression equation that Y = 2605,424 + 1561,550 X1 + 2,338 X2 + 38,994X3. T test results showed that the leverage anda GDP (Gross Domestic Product) is positive and significant effect on stock prices, while inflation is not positive and significant effect on stock prices. F test results showed that jointly leverage variables, inflation and GDP variables affecting the stock price significantly. The test results R2 (coefficient of determination) found that the variable leverage, inflation and GDP able to explain 35,4% of the stock price variable, while the remaining 64,6% is explained by other variables.Keywords: leverage, inflation, GDP, and the share priceThe purpose of this study was to obtain empirical evidence about the effect of leverage, inflation and Gross Domestic Product (GDP) of the share price at PT. Astra Autopart, Tbk. companies in Indonesia Stock Exchange in 2011-2015.The sampling technique in this study using a purposive sampling. With the technique of purposive  sampling, all the members of the research samples by criteria. Samples that meet the criteria are used research data. Then followed the classic assumption test and test hypotheses by linear regression.The results of this study demonstrate the regression results in regression equation that Y = 2605,424 + 1561,550 X1 + 2,338 X2 + 38,994X3. T test results showed that the leverage anda GDP (Gross Domestic Product) is positive and significant effect on stock prices, while inflation is not positive and significant effect on stock prices. F test results showed that jointly leverage variables, inflation and GDP variables affecting the stock price significantly. The test results R2 (coefficient of determination) found that the variable leverage, inflation and GDP able to explain 35,4% of the stock price variable, while the remaining 64,6% is explained by other variables.Keywords: leverage, inflation, GDP, and the share price

HUBUNGAN INTELEGENSI DENGAN PERILAKU NERS TINGKAT II STIKES SANTA ELISABETH MEDAN

2016 ◽  
Vol 1 (1) ◽  
pp. 21-30
Author(s):  
Imelda Derang
Keyword(s):  
Student Nurses ◽  
Sampling Technique ◽  
P Value ◽  
Test Results ◽  
Cross Sectional ◽  
Intelligence Level ◽  
Level Ii ◽  
Study Population ◽  
Cross Sectional Design ◽  
The Relationship

Intelligence is the ability to apply the knowledge and experiences that have been gained into the effort tasks are challenging and flexible book. Behaviour is an action that involves aspects of affective, cognitive, and psychomotor. Goal: This study aims to determine the relationship between the behavior of student nurses intelligence level II STIKes Santa Elisabeth Medan. Method: This study uses correlation with cross sectional design. The study population was all students / i Ners Level II STIKes Santa Elisabeth Medan as 65. The samples used were 65 respondents, the sampling technique in this research is using purposive sampling. The instrument of this study using questionnaire and observation sheets by using product moment test person. Result: Intelligence students as many as 30 people (46.2%) classified as having an average level of intelligence. A total of 32 people (49.2%) classified as well-behaved students. Person product moment test results obtained p value = 0.172 where a significant level of p> 0.05 so that this value proves that the absence of a relationship between the behavior of student nurses intelligence level II STIKes Santa Elisabeth Medan. Conclusion: Recommended for institutions, motivating students in balancing the behavior and intelligence. 

An Integrated Ship Re-Design/Modification Strategy

2019 ◽  
Vol 161 (A1) ◽  
Keyword(s):  
Computer Aided Design ◽  
Modular Design ◽  
Ship Hull ◽  
Cfd Model ◽  
Hull Form ◽  
Design Modification ◽  
Technical Parameters ◽  
Computational Fluid Dynamics Cfd ◽  
Bulbous Bow ◽  
Aided Design

Herein, we present an integrated ship re-design/modification strategy that integrates the ‘Computer-Aided Design (CAD)’ and ‘Computational Fluid Dynamics (CFD)’ to modify the ship hull form for better performance in resistance. We assume a modular design and the ship hull form modification focuses on the forward module (e.g. bulbous bow) and aft module (e.g. stern bulb) only. The ship hull form CAD model is implemented with NAPA*TM and CFD model is implemented with Shipflow**TM. The basic ship hull form parameters are not changed and the modifications in some of the technical parameters because of re-designed bulbous bow and stern bulb are kept at very minimum. The bulbous bow is re-designed by extending an earlier method (Sharma and Sha (2005b)) and stern bulb parameters for re-design are computed from the experience gained from literature survey. The re-designed hull form is modeled in CAD and is integrated and analyzed with Shipflow**TM. The CAD and CFD integrated model is validated and verified with the ITTC approved recommendations and guidelines. The proposed numerical methodology is implemented on the ship hull form modification of a benchmark ship, i.e. KRISO container ship (KCS). The presented results show that the modified ship hull form of KCS - with only bow and stern modifications - using the present strategy, results into resistance and propulsive improvement.

scholarly journals Kemampuan Lulusan Sekolah Tinggi Pariwisata Ampta Dalam Menghadapi Persaingan Di Dunia Kerja

Media Wisata ◽  
2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Sri Larasati
Keyword(s):  
Communication Skill ◽  
Total Population ◽  
Sampling Technique ◽  
Regression Equations ◽  
Test Results ◽  
A Value ◽  
The Face ◽  
Job Competition ◽  
Sampling Approach

The purpose of this research is to know wtether knowledge, skill, responsiveness and communication skill influence in job competition for graduate student from Sekolah Tinggi Pariwisata AMPTA. The population in this study are student pf Sekolah Tinggi Pariwisata SMPTA that graduated in 2013 until 2016, the total population in this studt is 702 and 200 respondents who have worked taken as samples, samples were taken with non probability sampling technique and accidental sampling approach. Sampling approach using regression equations obtained results that through test results F (regression analysis jointly) may note that the value of F = 147.104 count with the significance of 0.000 < 0.05. The test results of the test F reinforced with testing the determination of the coefficient that shows the value of 74.6%) (0.746. From Test t (partially) can result in variable knowledge with a value of t = 3,173 and significance of the value 0002 < 0.05, variable skill with a value of t = 2,949 and value the significance of 0.004 < 0.05, variable attitude with a value of t = 2,688 and value the significance of 0.008 < 0.05, variable communication skill with a value of t = value and significance of 4,497 0000 < 0.05. From the above results can be known that the hypothesis posed was not proven in other words that all of these variables can be said to have a positive and significant effect simultaneously as well as partial toward the ability of STP graduates AMPTA in the face of competition in the world of work

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