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All Journal Indonesian Journal of Geography ILMU KELAUTAN: Indonesian Journal of Marine Sciences POSITRON Jurnal Matematika & Sains Jurnal Teknik Sipil Jurnal Fisika FLUX Journal of Geoscience, Engineering, Environment, and Technology JFMR (Journal of Fisheries and Marine Research) BULLETIN OF THE MARINE GEOLOGY Jurnal Segara International Journal of Remote Sensing and Earth Sciences (IJReSES) JURNAL METEOROLOGI DAN GEOFISIKA Jurnal Buana Akuntansi Journal of Fisheries & Marine
Nining Sari Ningsih
Program Studi Oseanografi, Jurusan Geofisika & Meteorologi
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics

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PENGARUH PERPUTARAN KAS, PERPUTARAN PIUTANG DAN PERPUTARAN PERSEDIAAN TERHADAP PROFITABILITAS (Studi Pada Perusahaan Property dan Realestat yang Terdaftar di Bursa Efek Indonesia Periode 2010-2016) Nining Sariningsih
Jurnal Buana Akuntansi Vol 3 No 1 (2018): Jurnal Buana Akuntansi
Publisher : Program Studi Akuntansi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (504.425 KB) | DOI: 10.36805/akuntansi.v3i1.233

Abstract

ABSTRACT Effect of Cash Turnover, Accounts Receivable Turnover and Inventory Turnover To Profitability (Study In Company Property and Real Estate Listed on the Indonesia Stock Exchange Periode 2010-2016). The Purpose of this research is to analyze the effect of Cash Turnover, Accounts Receivable Turnover and Inventory Turnover To Profitability (Study In Company Property and Real Estate Listed on the Indonesia Stock Exchange Periode 2010-2016). The method applied in this research is descriptive and verificative method, due to the existence of variables which relations will be examined. This is also because this research is aimed elaborate structured, factual and accurate figures on the facts as well as the relations among researched variables that is the effect of Cash Turnover, Accounts Receivable Turnover and Inventory Turnover To Profitability. Research was conducted in Company Property and Real Estate Listed on the Indonesia Stock Exchange Periode 2010-2016, with 17 companies as research samples. Based on results of research data analysis show, following conclusions can be drawn : 1. Cash Turnover in partial has negative but doesn’t significant effect on profitability (ROA and ROE). 2. Accounts Receivable Turnover in partial has positive and significant effect on profitability (ROA and ROE). 3. Inventory Turnover in partial has positive and significant effect on profitability (ROA and ROE). 4. Cash Turnover, Accounts Receivable Turnover and Inventory Turnover in collectively has positive and significant effect on profitability (ROA and ROE). 5. Correlation coefficient shows that the relations among Cash Turnover, Accounts Receivable Turnover and Inventory Turnover variables To Return On Asset (ROA) are quite strong and significant. And correlation coefficient Cash Turnover, Accounts Receivable Turnover and Inventory Turnover variable To Return On Equity (ROE) are quite strong and significant. 6. Determinant coefficient show that Cash Turnover, Accounts Receivable Turnover and Inventory Turnover contribute to Return On Asset (ROA) variable as much as 20,6 % whereas 79,4% is effect by other non researched factors. And determinant coefficient show that Cash Turnover, Accounts Receivable Turnover and Inventory Turnover contribute to Return On Equity (ROE) variable as much as 33,8 % whereas 66,2% is effect by other non researched factors. Keywords: Cash Turnover, Accounts Receivable Turnover, Inventory Turnover, Profitability (ROA and ROE). ABSTRAK Tujuan dilakukan penelitian adalah untuk menganalisis Pengaruh Perputaran Kas, Perputaran Piutang dan Perputaran Persediaan Terhadap Profitabilitas (Studi Pada Perusahaan Property dan Realestat yang Terdaftar di Bursa Efek Indonesia Periode 2010-2016). Metode penelitian yang digunakan dalam penelitian ini adalah metode deskriptif dan verifikatif, hal ini karena terdapat variabel-variabel yang akan ditelaah hubungannya serta tujuannya untuk menyajikan gambaran secara terstruktur, factual dan akurat mengenai fakta-fakta serta hubungan antara variabel yang diteliti, yaitu Pengaruh Perputaran Kas, Perputaran Piutang dan Perputaran Persediaan Terhadap Profitabilitas. Penelitian dilakukan pada perusahaan Sub sector Property dan realestate yang Terdaftar di Bursa Efek Indonesia Periode 2010-2016, dengan jumlah sampel sebanyak 17 perusahaan. Dari hasil analisis data penelitian, diperoleh simpulan sebagai berikut: 1. Perputaran Kas, secara parsial berpengaruh negatif tetapi tidak signifikan terhadap Profitabilitas (ROA dan ROE). 2. Perputaran Piutang, secara parsial berpengaruh positif dan signifikan terhadap Profitabilitas (ROA dan ROE). 3. Perputaran Persediaan, secara parsial berpengaruh positif dan signifikan terhadap Profitabilitas (ROA dan ROE). 4. Perputaran Kas, Perputaran Piutang dan Perputaran Persediaan secara simultan mempunyai pengaruh positif dan signifikan terhadap Profitabilitas (ROA dan ROE). 5. Koefisien korelasi menunjukan bahwa hubungan antara variabel Perputaran Kas (X1), Perputaran Piutang (X2), dan Perputaran Persediaan (X3) terhadap Return On Asset (ROA) adalah cukup kuat dan signifikan. Dan juga koefisien korelasi Perputaran Kas (X1), Perputaran Piutang (X2), dan Perputaran Persediaan (X3) terhadap Return On Equity (ROE) adalah cukup kuat dan signifikan pula. 6. Koefisien Determinasi menunjukan bahwa variabel Perputaran Kas (X1), Perputaran Piutang (X2), dan Perputaran Persediaan (X3) memberikan kontribusi terhadap Return On Asset (ROA) sebesar 20,6% sedangkan sisanya sebesar 79,4 % dipengaruhi oleh faktor-faktor lain yang tidak diteliti. Dan juga Koefisien Determinasi menunjukan bahwa variabel Perputaran Kas (X1), Perputaran Piutang (X2), dan Perputaran Persediaan (X3) memberikan kontribusi terhadap Return On Equity (ROE) sebesar 33,8 % sedangkan sisanya sebesar 66,2 % dipengaruhi oleh faktor-faktor lain yang tidak diteliti. Kata Kunci: Perputaran Kas, Perputaran Piutang, Perputaran Persediaan, Profitabilitas (ROA dan ROE).
INTERNAL WAVES DYNAMICS IN THE LOMBOK STRAIT STUDIED BY A NUMERICAL MODEL Nining Sari Ningsih; Rima Rachmayani; Safwan Hadi; Irsan S. Brodjonegoro
International Journal of Remote Sensing and Earth Sciences (IJReSES) Vol 5,(2008)
Publisher : National Institute of Aeronautics and Space of Indonesia (LAPAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (836.884 KB) | DOI: 10.30536/j.ijreses.2008.v5.a1226

Abstract

A baroclinic 3D hydrodynamic model with the non-hydrostatic approximation called Massachusetts Institute of Technology Global Circulation Model (MIT gcm) has been applied to simulate the generation of internal tidal bores and their disintegration into internal solitary waves in the Strait of Lombok. Numerical simulation have been carried out by incorporating seasonal variations of the stratification of the water body, which exist during the first transitional monsoon, the east monsoon, the second transitional monsoon, and the west monsoon. Our simulation yields the results that the existence of the sill at the southern part of the Lombok Strait, strong tidal flow, and a stratified fluid, play an important role in forming some short of divergence and convergence area as an indication of the birth of internal waves, which are simulated on the both sides of the sill. The simulated results reproduce reasonably well the basic features of internal waves in the Strait of Lombok as captured by the Synthetic Aperture Radar (SAR) from the European Remote Sensing (ERS) satellites ERS 1 and ERS 2, such as a north-south asymmetry, propagation speeds, average amplitudes and wavelengths, and solution packets. Similiar to observations made by National Oceanic and Atmospheric Administration (NOAA) satellites, the simulation results also showed the intrusion of warmwater from thePacific Ocean into the Indian Ocean and the exitence of well-developmed thermal plume at south of the sill. Seasonal variations of interface depth of thermocline and the density difference between the stratified layers influence magnitudes of the amplitudes and wavelengths of the internal waves and solitons, and the distance of thermal plume in the Lombok Strait. It is found that during the monsoon transition periods and the west monson, the amplitudes of internal waves and solitons at the southern part of the strait is apparently larger than those at the northern one, whereas during the east monsoon, the wave amplitudes is large north of the sill than south of it. Meanwhile, the propagation speeds of northward propagating internal solitary waves (0.71-2.67m per s) are stronger than southward propagating ones (0.21-1.53 m per s) throughout the monsoon periods. Key words: internal waves, non-hydrostatic approximation, solitary waves, thermal plumes
The Movement of Plastic Marine Debris in Indonesian Seas using A Trajectory Model Engki Andri Kisnarti; Nining Sari Ningsih; Mutiara R. Putri; Nani Hendiarti
Jurnal Segara Vol 17, No 3 (2021): Desember
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (961.632 KB) | DOI: 10.15578/segara.v17i3.10283

Abstract

There are many studies on ocean currents transporting plastic marine debris using hydrodynamic models and trajectories that have been carried out. However, it is still constrained to be applied in Indonesian waters. Therefore, this research aims to obtain the movement patterns of plastic marine debris, influenced by the dynamics of currents in Indonesian waters using hydrodynamic and trajectory models. The methodology used in this research is to use the HAMburg Shelf Ocean Model (HAMSOM) numerical model and the trajectory model. Plastic marine debris is assumed to be conservative particles at sea level with a macro size (2.5 cm-1 m). The particles are released in 6 coastal cities (Manado, Balikpapan, Makassar, DKI Jakarta, Semarang, and Denpasar) at the month and stop at the end month (January, April, July, October). The results showed that particles originating from 6 coastal cities moved along the current to the surrounding areas only, across islands within the Indonesian territory, and even left Indonesian territory.
SIMULASI ROB DI SEMARANG MENGGUNAKAN MODEL HIDRODINAMIKA 2D Muhammad Najib Habibie; Agus Hartoko; Nining Sari Ningsih; Muhammad Helmi; Siswanto Siswanto; Roni Kurniawan; Andri Ramdhani; Rahayu Sapta S. Sudewi
Jurnal Meteorologi dan Geofisika Vol 13, No 2 (2012)
Publisher : Pusat Penelitian dan Pengembangan BMKG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (342.409 KB) | DOI: 10.31172/jmg.v13i2.124

Abstract

Semarang merupakan salah satu kawasan yang sering mengalami genangan air pasang (rob) yang dipengaruhi oleh beberapa faktor yaitu: faktor meteorologi, laju penurunan tanah dan faktor astronomi (pasang surut). Penelitian ini bertujuan untuk mengetahui kehandalan model dan peran faktor meteorologi pada simulasi genangan rob di wilayah Semarang.  Metode yang digunakan adalah analisa kenaikan tinggi muka laut beserta penurunan muka tanah, simulasi model dengan Hidrodinamika 2D serta verifikasi menggunakan data citra satelit IKONOS untuk mengetahui wilayah genangan. Dari simulasi model hidrodinamika 2D pada tanggal 13 Juni 2009 - bertepatan dengan siklon tropis Linfa di Laut Cina Selatan - yang memperhitungkan komponen pasang surut, tekanan dan angin diperoleh hasil yang menunjukkan wilayah Semarang Barat mengalami pengurangan batas pantai sejauh  221 m dan wilayah Pelabuhan sebesar 270 m dibanding jika komponen pasang surut saja yang diperhitungkan. Selain itu tinggi muka laut juga meningkat sebesar 10 cm ketika memasukkan komponen kecepatan angin dan tekanan udara permukaan. Hasil luaran model ketika dibandingkan dengan citra satelit IKONOS menunjukkan kemiripan yang berarti model telah merepresentasikan kondisi sebenarnya. Semarang is one of the area that experienced by inundation controlled by meteorological factor, subsidence and astronomical tide. The purpose of this research is to investigate the model performance and the role of meteorological factor on inundation area by using the 2D Hydrodynamic model. The simulation outputs are verified by IKONOS satellite data. By using the air pressure and wind data as the atmospheric forcings on June 9, 2009 coincides with tropical cyclone Linfa on South China Sea, the output of the model shows that the inundation is expanded up to 221 m in the West Semarang and 270 in the Semarang Harbor, compare to the output just using the tidal data only. Modeled-results also show that the sea level increase 10 cm. The output of 2D Hydrodynamic model have same pattern with IKONOS satellite image when both of them compared, so the model simulation represented actual condition on inundation field.
Numerical Modeling of Tidal Current Patterns Using 3-Dimensional MOHID in Balikpapan Bay, Indonesia Hadi Hermansyah; Nining Sari Ningsih; Nabil Nabil; Ayi Tarya; Syahruddin Syahruddin
Jurnal Ilmiah Perikanan dan Kelautan Vol. 12 No. 1 (2020): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v12i1.16257

Abstract

HighlightsThe results of the model and observation showed the similarity of the amplitude and phase formedAt the highest tide was in the position above the Sea Mean level and the current velocity was lower than when heading to the tideThere was a difference in the direction of the current when heading towards high tideStratification of the water column in both seasons tended to be classified in well-mixed watersAbstractBalikpapan Bay is significant as a link between the cities within and outside of East Kalimantan by becoming the primary path used for local transportation and distribution of produced goods. The various anthropogenic activities increased liquid wastes and debris, which flowed through channels and rivers along the bay. This study aimed to determine tidal current patterns in Balikpapan Bay and its influence on salinity and temperature distributions. This study applied a baroclinic three-dimensional (3D) hydrodynamic model, employing wind, tides, and density variations, resulting from the differences of temperature and salinity, as the model input. To simulate the tidal current flow, we applied MOHID Water Modeling System, which the tidal current patterns depicted current directions and speeds at the different tidal conditions. During the displacement toward the high tidal condition, the water mass moves northwestward entering the river body, while at the displacement toward the low tidal condition, the water mass moves southeastward, which flows toward the coast and without the bay. The current speed varies at certain tidal conditions. At the highest tidal condition, the surface elevation ranged 1.3 - 1.5 m above mean sea level; the current rate is lower compared to the displacement toward high tidal condition, which ranged from 0.01 - 0.15 m/s. At the lowest tidal condition, the surface elevation reached 1 - 1.2 m below mean sea level, and the weaker flow velocity took place (less than 0.15 m/s). The results also showed that the water mass temperature tends to be higher in the inner part of Balikpapan Bay, the Balikpapan Bay waters profile that is increasingly shallow towards the bay head also causes this area to tend to have a higher temperature. Also, areas located on the inside of the bay tend to get more freshwater input from rivers, so this area has lower salinity while the area located at the mouth of the bay tends to be of higher salinity because it gets a lot of mass input of seawater from the Makassar Strait.
SEASONAL AND INTRA-SEASONAL VARIABILITY OF OCEAN THERMAL POTENTIAL ENERGY IN THE INDONESIAN EXCLUSIVE ECONOMIC ZONE Totok Suprijo; Gandhi Napitupulu; Nining Sari Ningsih; Denny Basardo Jonatan Sinaga; Audi Rachman
BULLETIN OF THE MARINE GEOLOGY Vol 39, No 1 (2024)
Publisher : Marine Geological Institute of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32693/bomg.39.1.2024.866

Abstract

Ocean thermal energy is a promising marine renewable energy resource that can be developed as a clean energy alternative for Indonesia, which is in the equatorial or tropical region. This study assesses the potential of ocean thermal energy as a renewable energy source in the Indonesian Exclusive Economic Zone (EEZ) by estimating the monthly, seasonal, and intra-seasonal variability of ocean thermal energy conversion (OTEC) resources. The Indonesian EEZ spans from 6°N to 11°S and 95°E to 139°E, covering an area of 3,495,698.72 km². Using temperature data from simulations of the Hybrid Coordinate Ocean Model (HYCOM), the study evaluates the potential of OTEC resources over a 50-year period (from January 1964 to December 2013) with a spatial resolution of 0.125°. Estimation of OTEC potential power resources was based on temperature differences at depths of 20 m and 1000 m, following the hybrid cycle working principle.The results of the estimations indicate that the area has a monthly average potential power of 289.73 GW. The estimation also reveals seasonal and intra-seasonal variability in this potential energy, with fluctuations ranging from 280.09 GW in August to 295.65 GW in December, influenced by phenomena such as ENSO (El Niño Southern Oscillation) and IOD (Indian Ocean Dipole). In the Indonesian EEZ, the average potential thermal power decreases to 288.23 GW during an El Niño event and increases to 291.72 GW during a La Niña event. The IOD phenomenon has a similar effect, with potential decreasing to 281.82 GW during a positive IOD event and rising to 292.64 GW during a negative IOD event.
Tren Tinggi Gelombang Laut di Wilayah Pengelolaan Perikanan (WPP) Indonesia Periode 1977–2021 (45 Tahun) Ainun Azhari; Nining Sari Ningsih
Jurnal Teknik Sipil Vol 30 No 3 (2023): Jurnal Teknik Sipil
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2023.30.3.14

Abstract

Abstrak Pemahaman gelombang laut sangat penting bagi aktivitas maritim, khususnya di negara kepulauan seperti Indonesia. Pada studi ini, tren jangka panjang kecepatan angin dan tinggi gelombang signifikan (Significant Wave Height/SWH) di Wilayah Pengelolaan Perikanan (WPP) Indonesia dianalisis selama 1977–2021 (45 tahun) dengan menggunakan data dari European Centre for Medium-Range Weather Forecast (ECMWF) Reanalysis generasi kelima (ERA5). Secara keseluruhan, kecepatan angin dan SWH di perairan Indonesia mengalami kenaikan. Rata-rata tren kecepatan angin dan SWH di seluruh WPP Indonesia sebesar 0,29 cm/s/tahun dan 0,19 cm/tahun. Tren jangka panjang tinggi gelombang akibat swell dan wind sea di WPP Indonesia juga mengalami kenaikan, dengan nilai rata-ratanya sebesar 0,18 dan 0,05 cm/tahun. Perairan Indonesia yang mengalami kenaikan tren kecepatan angin dan tinggi gelombang terbesar berada di WPP yang berbatasan langsung dengan laut lepas, seperti di WPP 717 (perairan utara Papua), 572 (perairan barat Sumatra), dan 573 (perairan selatan Jawa). Fenomena El Niño-Southern Oscillation (ENSO), yakni El Niño (La Niña) berpengaruh terhadap penurunan (peningkatan) nilai kecepatan angin dan SWH rata-rata tahunan di WPP Indonesia, khususnya di WPP yang terletak di perairan Indonesia bagian dalam. Hasil penelitian ini dapat digunakan sebagai langkah awal dalam mitigasi dan adaptasi terhadap perubahan iklim.
Kajian Lokasi Upwelling untuk Penentuan Fishing Ground Potensial Ikan Tuna Kunarso, Kunarso; Hadi, Safwan; Ningsih, Nining Sari
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 10, No 2 (2005): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (270.565 KB) | DOI: 10.14710/ik.ijms.10.2.61-67

Abstract

Ikan tuna adalah penyumbang devisa negara dari sektor perikanan yang tinggi.Penentuan lokasi fishingground yang tepat perlu dilakukan untuk  mengoptimalkan penangkapannya. Lokasi upwelling sebagai daerah yang subur perlu dikaji keterkaitannya dengan fishing ground tuna. Tujuan penelitian ini adalah mengkaji kaitan antara lokasi upwelling dengan fishing ground potensial ikan tuna. Metode penelitian ini menggunakan analisis diskriptif dengan membandingkan data karakteristik lokasi upwelling , bioekologi dan perikanan tuna. Berdasarkan hasil analisa ditemukan bahwa lokasi upwelling merupakan fishing ground  tuna yang potensial. Dengan meng-overlay (penampalan) peta distribusi tuna dan lokasi upwelling, telah diperoleh peta lokasi prediksi fishing ground tuna yang potensial berdasarkan variasi bulan dan tipeperiode kejadian iklim (Normal, El Niño, dan La Niña)Kata kunci : tuna, lokasi upwelling, lokasi penangkapanTuna fishes give high contribution to the country devisa. Determination of proper fishing ground isnecessary to be done in order to optimallize the tuna catch. The upwelling location, as the fertile area, andits correlation with tuna fishing ground are necessary to be studied. The aim of this research was studyingcorelation between upwelling location with tuna fishing ground. Metode of this research used was descriptionanalysis with compare upwelling characteristis, bioecology, and tuna fishing data. Based on analysis of the result, it is found that upwelling location is potential tuna fishing ground. By overlying, we have produced the monthly prediction map of potential tuna fishing ground and its relation to climate variability (e.g., Normal, El Niño, and La Niña events).Key words : tuna, upwelling, fishing ground
Co-Authors Agung B. Harto Agus Hartoko Agus Supangat Ainun Azhari Ajeng P. P. Oktaviani Amanda P Rudiawan Amelia Mustika Kusmarani Anastasia R. T. D. Tisiana Andri Ramdhani Arie Antasari Kushadiwijayanto Arief Rachman Arief Rachman Audi Rachman Ayi Tarya Denny Basardo Jonatan Sinaga Engki Andri Kisnarti Fadli Syamsudin Farrah Hanifah Farrah Hanifah Farrah Hanifah Gandhi Napitupulu Hadi Hermansyah Hanah Khoirunnisa Handiani, Dian Noor Hanifah, Farrah Harum Sukarmadijaya Irsan S. Brodjonegoro Irsan S. Brodjonegoro Kandaga Pujiana Kunarso Kunarso M. D. Utami Martha, Dian Martono Martono Martono Martono Muchamad Al Azhar Muh. Ishak Jumarang Muhammad Helmi Muhammad Najib Habibie Muliadi Muliadi Mulyono S. Baskoro Mutiara R Putri Mutiara R. Putri Nabil Nabil Nani Hendiarti Nani Hendriati Rahayu Sapta S. Sudewi Reno Arif Rachman Rima Rachmayani Rima Rachmayani Roni Kurniawan Safwan Hadi Safwan Hadi Safwan Hadi Safwan Hadi Safwan Hadi Safwan Hadi Safwan Hadi Safwan Hardi Siswanto Siswanto Syahruddin, Syahruddin Totok Suprijo