scholarly journals Hydro-Oceanographic Characteristics In Karimunjawa Coastal Waters During The 1st Transitional Season

Jurnal Segara ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 107
Author(s):  
Yulius Yulius ◽  
Joko Prihantono ◽  
Dino Gunawan ◽  
Muhammad Ramdhan ◽  
August Daulat ◽  
...  
Keyword(s):  
Coastal Waters ◽  
Secondary Data ◽  
Acoustic Doppler Current Profiler ◽  
Least Square Method ◽  
Least Square ◽  
Ocean Current ◽  
Primary Data ◽  
Peak Period ◽  
Waves And Currents ◽  
Matlab Programming

This study aims to determine oceanographic characteristics such as tides, waves, and currents in Karimunjawa Coastal Waters during the 1st transitional season and to update the oceanographic database for spatial management evaluation in the region. The tidal characteristics were obtained from the least square method analysis using World Tide software based on Matlab programming language, while wave and current characteristics obtained from 2-dimensional numerical modeling using Mike 21 software on the flow model and spectral wave module. The primary data used were the significant wave height (Hs), wave peak period (Tp), and ocean current components (u and v velocity) on 13-26 May 2016 using the Sontex Argonaut XR type Acoustic Doppler Current Profiler (ADCP) equipment. Tide data were predicted for the Kemujan Islands station from 1-31 March 2020. Secondary data for additional numerical model input were obtained from ERA5-reanalysis in the form of Hs, Tp, u, and v wind velocity data for May 2020 with a temporal resolution of 20 minutes, while bathymetry data derived from GEBCO Satellite Derivated Bathymetry (SDB) data. The tide analysis results showed that Karimunjawa waters are a single daily mixed tidal type. The wave characteristic moves from east to west with high waves reached 0.9 meters and a peak period of 7 seconds. The eastern side of Karimunjawa Island, Kemujan Island, and the western area have a calmer wave. The current characteristic moves northeastward with a speed of 5-28 cm/s, which concludes that in several locations, such as the Menjangan Besar-Menjangan Kecil strait, the currents depend on the tidal conditions.

scholarly journals Kajian Pola Arus Laut dan Distribusi Sedimen Di Perairan Pantai Muara Kamal Jakarta Utara

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Permana Ari Soerjawo ◽  
Thonas Indra Maryanto
Keyword(s):  
Current Velocity ◽  
High Tide ◽  
Clay Fraction ◽  
Secondary Data ◽  
Acoustic Doppler Current Profiler ◽  
Google Earth ◽  
Ocean Current ◽  
Primary Data ◽  
Sediment Distribution ◽  
Current Profiler

ABSTRAKPola arus laut dan distribusi sedimen merupakan proses dinamika di suatu perairan yang mempunyai karakteristik berbeda-beda, sehingga berpengaruh terhadap pembentukan geomorfologi pantai di seluruh dunia. Penelitian ini bertujuan untuk mengetahui pola arus dan sedimen di perairan Pantai Muara Kamal Jakarta Utara di tahun 2012. Data yang digunakan merupakan data primer dan data sekunder, data primer meliputi data arus yang didapat dari pemasangan ADCP(Acoustic Doppler Current Profiler), data pasang surut dan sedimen perairan yang diambil dengan sedimen grab. Data sekunder berupa peta LPI (Lingkungan Pantai Indonesia) tahun 2000 skala 1:50.000 dari BIG (Badan Informasi Geospasial) dan citra satelit Google Earth tahun 2009. Hasil penelitian menunjukan bahwa kecepatan arus yang paling besar terdapat pada lapisan permukaan dengan kecepatan 0,242 m/s kearah barat daya (207,8o), kecepatan arus terkecil terdapat pada lapisan dasar yaitu 0,141 m/s kearah barat daya (207o). Hasil simulasi model hidrodinamika 2D, menunjukkan bahwa pada saat pasang arus laut mengarah ke daratan (selatan) dan pada saat surut arus laut mengarah ke laut lepas (barat laut). Berdasarkan kandungan ukuran butir sedimen di perairan Pantai Muara Kamal Jakarta Utara adalah pasir (64.98 - 72.15%) fraksi pasir tertinggi distasiun B(belakang geotekstil), lanau (24.56 - 29.36%) fraksi lanau tertinggi di stasiun C (depan geotekstil) dan Lempung (1.64 – 5.64%) fraksi lempung tertinggi di stasiun C (depan geotekstil). Kata kunci: Arus, Pantai Muara Kamal, Sedimen, model hidrodinamika 2D   ABSTRACTOcean current and sediment distribution are the dynamic process that have different charactheristic and therefore influenced beach geomorfophology around the world. This research aims to understand both ocean current and sediment pattern in Muara Kamal North Jakarta in 2012. This research used primary and secondary data, primary data were consisted of current data from ADCP (Acoustic Doppler Current Profiler), tidal data and bottom sediment samples. Secondary data involved of Indonesia Coastline Environmental map of year 2000 with scale 1:50.000 from Geospatial information Agency and a satellite data from Google earth of year 2009. The results showed that greatest ocean current velocity contained in the surface layer at a speed of 0,242 m/s with to southwest direction (207.8o), the smallest current velocity was in bottom layer is 0.141 m/s with southwest directiont (207o). Based on 2D hydrodynamic model simulation indicated that when high tide ocean current was flowed to the mainland (south) when low tide the current was flowed to the open sea direction. Based on the content grain size of the sediment, the studi area consisted of sand (64.98 - 72.15%) the highest sand fraction at station B(rare of geotextile) , silt (24.56 - 29.36%) the highest silt fraction at station C (front of geotextile) andclay (1.64 – 5.64%) the highest clay fraction at station C(front of geotextile) Key Words: Current, Muara Kamal Shoreline, Sediment, 2D hydrodynamics model

scholarly journals Flood Risk Assessment of Residential Neighbourhoods in Calabar Metropolis, Cross River State, Nigeria

2016 ◽  
Vol 6 (2) ◽  
pp. 115 ◽  
Author(s):  
Benedict E. Ojikpong ◽  
Bassey E. Ekeng ◽  
Ukpali E. Obonga ◽  
Samuel I. Emri
Keyword(s):  
Flood Risk ◽  
Flood Control ◽  
Residential Buildings ◽  
Drainage System ◽  
Secondary Data ◽  
Least Square Method ◽  
Least Square ◽  
Control Measures ◽  
Primary Data ◽  
Residential Areas

<p class="1Body">The study is aimed at examining the vulnerability of some residential neighbourhoods in Calabar to the menace of flooding with a view to determining residential areas of high, medium and low flood risk. Two hypotheses were formulated such as: there is no significant relationship between the magnitude of flood, and the vulnerability of residential neighbourhoods and the elements-at-risk to flood in residential neighbourhoods in Calabar do not vary significantly according to the topography of the area. The major primary data were obtained from the metric measurement of the coverage of flood and the assessment of the numerical value of the residential buildings considered vulnerable to flood within the areas measured. Secondary data were also obtained from the collection of both published and unpublished materials and data on flooded buildings and displaced persons were also obtained from the State Emergency Management Agency (SEMA), Calabar. The data were analyzed using descriptive statistics and hypotheses tested using the regression coefficient of the least square method and scatter grams for prediction. The results of the hypotheses were found to be significant as the magnitude of flood determined the vulnerability of some residential neighbourhoods. Vulnerability was found to be higher in low lying residential neighbourhoods. The study, however, recommends among others, planned and autonomous adaptation responses, flood plain zoning to urban agriculture, landscaping and recreational uses. Proper channelization of Calabar urban drainage system, stringent flood control legislation, and development control measures should be enforced so as to discourage people from building on or near flood-prone areas of Calabar.</p>

scholarly journals Analisis Kebutuhan Air Bersih Kecamatan Anjir Muara dan Kecamatan Anjir Pasar

2019 ◽  
Vol 3 (1) ◽  
pp. 34-41
Author(s):  
Riska Norastina ◽  
Faryanto Effendi
Keyword(s):  
Water Loss ◽  
Water Demand ◽  
Production Capacity ◽  
Secondary Data ◽  
Least Square Method ◽  
Least Square ◽  
Primary Data ◽  
Clean Water ◽  
Total Water ◽  
Domestic Water

ABSTRAK Air adalah salah satu kebutuhan pokok manusia yang sangat berperan penting dalam kehidupan, air dapat diperoleh dari berbagai sumber, tergantung pada kondisi dan daerah setempat. Penyediaan air bersih untuk masyarakat saat ini menjadi salah satu permasalahan penting, dalam rangka memenuhi kebutuhan air bersih yang semakin meningkat setiap tahunnya. Maka PDAM Unit IKK Anjir Muara Pasar perlu mengkaji kembali kebutuhan air bersih. Metode penelitian yang digunakan yaitu dengan pengumpulan data primer dan data sekunder, kemudian dilakukan perhitungan proyeksi penduduk 10 tahun mendatang menggunakan 3 metode yaitu metode aritmatik, metode geometrik, dan metode least square. Kebutuhan air bersih yang dihitung yaitu kebutuhan domestik, kebutuhan non domestik, dan kehilangan air. Sehingga didapatlah kebutuhan air total 10 tahun mendatang. Hasil perhitungan yaitu kebutuhan air domestik tahun 2028 adalah 37,053 L/dtk, kebutuhan air non domestik tahun 2028 adalah 2,27 L/dtk, kehilangan air tahun 2028 adalah 7,864 L/dtk. Total kebutuhan air tahun 2028 adalah 47,19 L/dtk, kapasitas produksi  tahun 2028 yaitu 47,19 L/dtk. Kapasitas produksi yang terpasang saat ini adalah 70 L/dtk, sehingga pada tahun 2028 kapasitas yang terpasang saat ini memenuhi untuk 10 tahun  ke depan. Abstract Water is one of the basic human needs that plays an important role in life, water can be obtained from various sources, depending on conditions and the local area. The provision of clean water for the community is now one of the important problems, in order to meet the growing need for clean water every year. So the IKK PDAM Unit Promote the Estuary Market needs to review the need for clean water. The research method used is by collecting primary data and secondary data, then calculating the population projection for the next 10 years using 3 methods, namely arithmetic methods, geometric methods, and least square method. The calculated clean water needs are domestic needs, non-domestic needs, and water loss. So that you get the total water needs for the next 10 years. The calculation result is that domestic water demand in 2028 is 37,053 L/sec, non-domestic water needs in 2028 are 2.27 L/sec, water loss in 2028 is 7.864 L/sec. The total water demand in 2028 is 47.19 L/sec, production  capacity in 2028 is 47.19 L/sec. The currently installed production capacity is 70 L/sec, so that in 2028 the installed capacity currently meets for the next 10 years.

scholarly journals Pengaruh umur, pendidikan, upah, keterampilan, dan jenis kelamin terhadap lama mencari kerja bagi pekerja terdidik di Kota Jambi (studi kasus Kecamatan Kota Baru dan Telanaipura)

2020 ◽  
Vol 9 (1) ◽  
pp. 1-12
Author(s):  
Cici Swarsih ◽  
Junaidi Junaidi ◽  
Rosmeli Rosmeli
Keyword(s):  
Sampling Method ◽  
Least Square Method ◽  
Total Sample ◽  
Least Square ◽  
Primary Data ◽  
Wage Level ◽  
Ordinary Least Square ◽  
Independent Variables ◽  
And Gender ◽  
Multistage Sampling

This study aims to analyze the characteristics of educated workforce and to determine the effect of variables of age, education, wage level, skills and gender on duration of looking for work by educated worker in Jambi City. The data used in this study are primary data obtained from questionnaires and direct interviews with a total sample of 110 respondents. Sampling in this study uses a multistage sampling method that is sampling in stages. Data analysis methods used are descriptive and quantitative analysis. The analytical tool used is the OLS (Ordinary Least Square) method. The results of this study indicate that the independent variables simultaneously have a significant effect on duration of looking for work. Partially the variables of age, education, wage level have a significant effect on duration of looking for work, while the skills and gender variables have no significant effect on the duration of looking for work.

scholarly journals E-filling dan Relawan Pajak dalam Meningkatkan Kepatuhan Wajib Pajak Orang Pribadi

2020 ◽  
Vol 4 (2) ◽  
pp. 208
Author(s):  
I Nyoman Darmayasa ◽  
Bagus Putra Wibawa ◽  
Ketut Nurhayanti
Keyword(s):  
Sample Selection ◽  
Tax Compliance ◽  
Sampling Technique ◽  
Least Square Method ◽  
Partial Least Square ◽  
Least Square ◽  
Primary Data ◽  
Purposive Sampling ◽  
Partial Least Square Method

AbstractThis research aims to analyze the effect of e-filling application and tax volunteer’s role to individual taxpayer’s compliance. In addition, this research also analyzes the effect of tax volunteer’s role as moderating variable on e-filling application to individual taxpayer’s compliance. This research analyzes primary data from distributed questionnaires to 100 individual taxpayers’ in assistance locations of Tax Volunteer from Politeknik Negeri Bali Tax Center. Sample selection in this research using purposive sampling technique. The testing of research variables was conducted using the Partial Least Square method with SmartPLS 3.0 application. The results showed that e-filling application and tax volunteers role had a positive and significant effect on individual taxpayer’s compliance. While there is no significant effect from the moderation of tax volunteer’s role in e-filling application to individual taxpayer’s compliance. This research has a novelty the role of tax volunteers in improving taxpayer compliance. Furthermore, this research has a practical contribution to the tax authority to increase the role of tax volunteers and to taxpayers on the participation of utilizing tax volunteers to improve compliance.Keywords: E-filling; Individual taxpayer; Tax compliance; Tax volunteerAbstrak Penelitian ini bertujuan untuk menguji efek dari penerapan e-filling dan peran relawan pajak terhadap kepatuhan wajib pajak orang pribadi. Di samping itu, dilakukan pula pengujian moderasi relawan pajak atas pengaruh penerapan e-filling terhadap kepatuhan wajib pajak orang pribadi. Penelitian ini menganalisis data primer dari kuesioner yang disebarkan kepada 100 wajib pajak orang pribadi di lokasi asistensi Relawan Pajak Tax Center Politeknik Negeri Bali. Pemilihan sample pada penelitian ini menggunakan teknik purposive sampling. Pengujian variabel penelitian dilakukan menggunakan metode Partial Least Square dengan aplikasi SmartPLS 3.0. Hasil penelitian menunjukkan bahwa penerapan e-filling dan peran relawan pajak berpengaruh positif dan signifikan terhadap kepatuhan wajib pajak orang pribadi. Sedangkan terdapat pengaruh yang tidak signifikan pada moderasi peran relawan pajak atas penerapan e-filling terhadap kepatuhan wajib pajak orang pribadi. Penelitian ini memiliki keterbaruan peran relawan pajak dalam meningkatkan kepatuhan wajib pajak. Penelitian ini memiliki kontribusi praktis pada otoritas pajak untuk meningkatkan peran relawan pajak dan terhadap wajib pajak pada partisipasi memanfaatkan relawan pajak untuk meningkatkan kepatuhan.Kata Kunci: E-filling; Kepatuhan pajak; Relawan pajak; Wajib pajak orang pribadi

scholarly journals Impulse of Dividend Payment Decision: Evidence from Pharmaceutical Industry in Bangladesh

2017 ◽  
Vol 9 (1) ◽  
pp. 219
Author(s):  
Ariful Hoque
Keyword(s):  
Stock Exchange ◽  
Secondary Data ◽  
Least Square Method ◽  
Agency Cost ◽  
Least Square ◽  
Pharmaceutical Companies ◽  
Financial Leverage ◽  
Dividend Payment ◽  
Explanatory Variables ◽  
Prime Objective

The dividend is the reward of shareholders of an organization in exchange for time and risk. For maximizing shareholder’s wealth, optimum dividend payout ratio is essential. The prime objective of this paper is to identify impulse of dividend payment decision of listed pharmaceutical companies in Dhaka Stock Exchange of Bangladesh. Dividend payment decision is the dependent variable and profitability, firm’s size, financial leverage, growth, and agency costs are taken as explanatory variables in this study. Collected secondary data are analyzed by econometrics software Eviews 8 through least square method. Formulated multiple regression models show value of R-square (R2) is 0.604817. R-square (R2) value indicates explanatory variables explain 60.48% variation of the dependent variable. The study also reveals that profitability and agency cost positively influence the dividend payment decision and firm’s size, financial leverage, growth negatively impact on the dividend payment decision of selected pharmaceutical companies. Among explanatory variables, profitability is not statistically significant at 5% significant level whereas firm’s size, financial leverage, growth and agency cost are found statistically significant at 5% significant level. So this paper finds that listed pharmaceutical companies in Dhaka Stock Exchange must consider firm’s size, financial leverage, growth and agency cost in their dividend payment decision.

scholarly journals THE EFFECT OF ORGANIZATIONAL COMMUNICATION AND JOB SATISFACTION ON EMPLOYEE ENGAGEMENT AND EMPLOYEE PERFORMANCE AT PT. ABYOR INTERNATIONAL

2020 ◽  
Vol 1 (4) ◽  
pp. 479-489
Author(s):  
Febrial Eka ◽  
Herminingsih Anik
Keyword(s):  
Job Satisfaction ◽  
Organizational Communication ◽  
Employee Engagement ◽  
Employee Performance ◽  
Secondary Data ◽  
Equation Model ◽  
Partial Least Square ◽  
Least Square ◽  
Primary Data ◽  
Sample Method

This study aims to analyze the effect of organizational communication and job satisfaction, on employee engagement and employee performance. The research data used are primary data derived from questionnaires and secondary data derived from company data. The sample method used is the nonprobability method. The population comes from all employees of PT. Abyor International which is still active in September 2019. The analytical method used in this study is the Partial Least Square (PLS) Structured Equation Model (SEM) using Smart PLS version 3.0. The results showed that organizational communication and job satisfaction had a positive and significant effect to employee engagement. Organizational communication and job satisfaction have no significant effect to employee performance. Employee engagement has a positive and significant effect to employee performance. Employee engagement becomes mediator for organizational communication and job satisfaction variables in influencing employee performance.

scholarly journals ANALISIS PERMALAN (FORECAST) PENJUALAN SEPEDA MOTOR HONDA PADA DEALER CAHAYA MOTOR INDAH MUARA TEMBESI

2018 ◽  
Vol 2 (1) ◽  
pp. 57
Author(s):  
Jasasila Jasasila
Keyword(s):  
Volume Growth ◽  
Secondary Data ◽  
Least Square ◽  
Primary Data ◽  
Sales Volume ◽  
Sales Growth ◽  
Literature Study ◽  
Collection Method ◽  
Method Of Least Square ◽  
The Right

This study was conducted to determine the forecasting of Honda motorcycle sales at the Dealer Cahaya Motor Indah Muara Tembesi. The purpose of this study are: a) To know the development of Honda motorcycle sales at the Dealer Cahaya Motor Indah Muara Tembesi b) to know the forecasting of Honda motorcycle sales at the Dealer of Cahaya Motor Indah Muara Tembesi and c) To know the correct the right methode  forecasting used Dealer Cahaya Indah Motor Muara Tembesi. The type of data used in this study is, primary data and secondary data with data sources obtained directly from Dealer Cahaya Indah Motor Muara Tembesi namely motorcycle sales data. Data collection method is done through literature study, From the data obtained and the analysis of the development of Honda motorcycle sales at dealer Cahaya Motor Indah Muara Tembesi within a period of four years ie 2012 to 2016 experiencing the fluctuating sales growth seen in 2013 there was a decline sales of 55.58%, for the year 2014 again a decline in sales from the previous year amounted to 11.76%, while in 2015 there was an increase of 26.59%, but in 2016 again sales decline by 24.57% from the previous year . The decrease of sales growth at Cahaya Motor Indah dealership is one of them caused by unstable community income, in general the source of income from the plantation sector (palm and rubber) which during the year of analysis also fluctuate in price, so it has influence on the demand of bicycle motorcycle. From the average sales volume growth of 1,025 units, then through the rationalization analysis peralaman is known forst sales volume in 2017 is 913 units, while the right method to be used by the Dealer Cahaya Motor Indah Muara Tembesi in forecasting is the method of Least Square and Moment Trend Method.Keywords: Method; Forecast; Sales

scholarly journals ANALISIS BIAYA-VOLUME-LABA SEBAGAI ALAT PERENCANAAN LABA JANGKA PENDEK PADA PERUSAHAAN DAERAH AIR MINUM TIRTA TARUM KAB. KARAWANG

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Ade Suhara ◽  
Amallia .
Keyword(s):  
Analytical Method ◽  
Secondary Data ◽  
Least Square Method ◽  
Least Square ◽  
Sales Forecast ◽  
Profit Analysis ◽  
Cost Planning ◽  
Projection Analysis ◽  
Cost Projection ◽  
Made In

ABSTRACT: PDAM Tirta Tarum Kab. Karawang from 2012 to 2014 shows that profits continue to decline, if this continues to be allowed then PDAM Tirta Tarum Kab. Karawang will suffer losses. Therefore the main problem in this study is how sales planning, cost planning and profit planning are expected by applying cost-volume-profit analysis and how the comparison between cost projections made by PDAM Tirta Tarum Kab. Karawang with cost projections resulting from cost-volume-profit analysis. The data needed is secondary data obtained from PDAM Tirta Tarum Kab. Karawang in the form of data on PDAM profits in 2011 - 2014, total costs in 2011 - 2014, details of elements of 2014 income and projections of company costs according to the project feasibility study made in 1998. The analytical method used is cost separation analysis, least square method trend, break-even analysis, sales forecast analysis, cost projection analysis, 2015 profit planning and comparison of company cost projections with cost projections resulting from profit-volume-profit analysis. ABSTRAK PDAM Tirta Tarum Kab. Karawang dari tahun 2012 hingga tahun 2014 menujukkan keuntungan yang terus menurun, bila hal ini terus dibiarkan maka PDAM Tirta Tarum Kab. Karawang akan mengalami kerugian. Oleh karena itu permasalahan utama dalam penelitian ini adalah bagaimana perencanaan penjualan, perencanaan biaya dan perencanaan laba yang diharapkan dengan penerapan analisis biaya-volume-laba dan bagaimana perbandingan antara proyeksi biaya yang dilakukan PDAM Tirta Tarum Kab. Karawang dengan proyeksi biaya hasil analisis biaya-volume-laba. Data yang diperlukan merupakan data sekunder yang diperoleh dari PDAM Tirta Tarum Kab. Karawang berupa data keuntungan PDAM tahun 2011 - 2014, total biaya tahun 2011 – 2014, perincian elemen-elemen laba rugi tahun 2014 dan proyeksi biaya perusahaan menurut studi kelayakan proyek yang dibuat tahun 1998. Metode analisis yang digunakan adalah analisis pemisahan biaya, metode least square trend, analisis impas, analisis forecast penjualan, analisis cost proyeksi, perencanaan laba tahun 2015 dan perbandingan proyeksi biaya perusahaan dengan proyeksi biaya hasil analisis biaya-volume-laba. Kata Kunci : Least Square Trend, Forecast

scholarly journals Analysis of Factors Affecting the Demand of Chicken Egg’s in the Traditional Market of Medan City

2017 ◽  
Vol 5 (2) ◽  
Author(s):  
Dwi Andini Puspita Sari br Sinaga ◽  
Armyn Hakim Daulay ◽  
Edhy Mirwandhono ◽  
Sayed Umar ◽  
Iskandar Sembiring
Keyword(s):  
Least Squares Method ◽  
Secondary Data ◽  
Least Square ◽  
Primary Data ◽  
Factors Affecting ◽  
Ordinary Least Square ◽  
On Demand ◽  
Chicken Egg ◽  
Traditional Market ◽  
Chicken Eggs

The development of the society resulting for animal protein needed such as chicken egg’s increased and affect the demand for eggs in Medan. Therefore, it is necessary to do research to know the factors that influence the demand of chicken egg in traditional market of Medan city at consumer level by using Ordinary Least Square (OLS) method or least squares method with SPSS 22.0 tool. This study was conducted from May to June 2017. This study used primary data obtained from observations and interviews of respondents. The location of the research is determined purposively and the respondent determination by accidental method. Primary data was obtained from 90 consumers of chicken eggs and added with secondary data from government agencies. Then it was analyzed by multiple linear analysis with 5 demand variables namely, the number of dependents, education, income, egg price of chicken, and age. The results showed that all variables simultaneously had a significant effect on demand. Partially only variable of dependent which have real effect to demand of chicken egg of race. So it can be concluded that the demand for eggs in Medan is only influenced by the number of dependents

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