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SEBARAN SEDIMEN DASAR MINERAL MAGNETIK DAN MINERAL NON- MAGNETIK DI PERAIRAN PANTAI SLAMARAN KOTA PEKALONGAN

Journal of Oceanography Vol 3, No 1 (2014)
Publisher : Journal of Oceanography

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Abstract

AbstrakPerairan Pantai Slamaran, Kota Pekalongan memilki tingkat sedimentasi yang sangat tinggi yang disebabkan adanya sudetan Sungai Banger dan Sungai Slamaran yang membawa material-material yang berasal dari daratan kearah laut. Tujuan penelitian ini adalah untuk mengetahui sebaran sedimen dasar yang mengandung mineral magnetik dan mineral non- magnetik di perairan Pantai Slamaran, Kota Pekalongan. Penelitian ini dilaksanakan pada tanggal 28 Mei – 11 Juni 2012 di Pantai Slamaran, Kota Pekalongan. Dimulai dari tahap pengambilan data di lapangan kemudian tahap pengolahan data serta analisis data di Laboratorium Geologi Jurusan Ilmu Kelautan Universitas Diponegoro. Data yang digunakan adalah data primer dan data sekunder. Data primer yaitu data gelombang, kelerangan, dan sampel sedimen dasar dan data sekunder meliputi peta LPI Pekalongan Tahun 2000, data angin, dan data arus. Penelitian ini menggunakan  metode deskriptif bersifat eksploratif, pengambilan sampel menggunakan metode sampling purposif. Metode analisa data menggunakan software ArcGIS 9.3. Hasil penelitian didapatkan jenis sedimen dasar yang mendominasi di perairan Slamaran adalah jenis pasir lanauan dan jenis pasir mendominasi pada bagian pantai. Nilai gelombang signifikan (Hs) 0,59m; periode gelombang signifikan (Ts) 3,34s; (Hmaks) 0,89m; (Tmaks) 4,60s; (Tmin) 0,22m dan (Pmin) 2,00s yang menjalar kearah barat, sedangkan kecepatan arus dasar 0,0001m/dt sampai 0,271m/dt kearah utara. Pada Kandungan mineral magnetik dominan pada daerah pantai sedangkan  kandungan mineral non- magnetik dominan pada daerah lepas pantai dikarenakan partikel magnetik memiliki ukuran yang lebih besar daripada non- magnetik. Hasil analisa presentase mineral magnetik dan mineral non-magnetik didapatkan skala butiran 0.3mm-0,5mm memiliki kandungan magnetik terbesar kemudian untuk non- magnetik terdapat pada skala 0,063mm-0,125mm. 

ZOOPLANKTON COMMUNITY IN LAMALERA SEA AND SAWU SEA, EAST NUSA TENGGARA

Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 5, No 1 (2013): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Jurnal Ilmu dan Teknologi Kelautan Tropis

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Abstract

Zooplankton community was studied in Lamalera Sea and Sawu Sea during DIKTI-P2O LIPI Expedition from 19 – 30 July 2011. Besides being a potential fishing ground, the Lamalera sea and Sawu Sea have been a migration path for Cetacean (large marine mammals), particularly during the southeast monsoon season. The purposes of this study were to investigate community structure, abundance, and spatial distribution of zooplankton in the Lamalera Sea and the Sawu Sea.  Plankton samples were collected from 23 stations, by NORPAC 300 µm-net that was vertically hauled from maximum 200 meter depth up to the surface water. The result showed that there were 45 taxa of zooplankton, which was dominated by copepods . The abundance of the zooplankton between 491 - 4537 individu/m3. Average diversity index and evenness values were 1.59 ± 0.21 and 0.50 ± 0.04, respectively. In this area, Creel has been found in all research stations but the abundance was small. Species composition was relatively the same between sampling stations suggesting that there was no different in composition between north and south parts, which virtually comprise of different water masses. It showed that spatial distribution of zooplankton was relatively  wide-reaching. Keywords: zooplankton, copepoda, creel, Lamalera sea, and Sawu Sea.

Kemandirian Anak Di Panti Asuhan Yatim Islam Ditinjau Dari Konsep Diri Dan Kompetensi Interpesonal

Psikologika : Jurnal Pemikiran dan Penelitian Psikologi Vol 5, No 10 (2000)
Publisher : Fakultas Psikologi dan Ilmu Sosial Budaya Universitas Islam Indonesia Yogyakarta

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Abstract

Penelitian ini bertujuan untuk mengetahui hubungan antara kompetensi interpersonal dan konsep diri dengan kemandirian, baik secara bersama-sama maupun sendiri-sendiri. Hipotesis penelitian ini adalah terdapat hubungan antara kompetensi interpersonal dengan kemandirian, terdapat hubungan antara konsep diri dengan kemandirian dan terdapat hubungan ganda antara kompetensi interpersonal dan konsep diri dengan kemandirian anak asuh di panti asuhan yatin Islam di Yogyakarta.            Subjek penelitian ini adalah anak asuh di panti asuhan yatim Islam Kota Yogyakarta yang berusia remaja (13-21 tahun). Panti asuhan yatim Islam di Kota Yogyakarta terdapat tiga panti asuhan, yaitu Panti Asuhan Yatim Putra Muhammadiyah, Panti Asuhan Yatim Putri Islam dan Panti Asuhan Yatim Putri ‘Asyiyah. Subjek diambil secara random dengan berpedoman pada Tabel Kecjie, yaitu 85 subjek.            Alat ukur yang digunakan adalah angket kemandirian, angket kompetensi interpersonal dan angket konsep diri yang disusun oleh peneliti. Hasil penelitian menunjukkan; terdapat hubungan yang signifikan antara kompetensi interpersonal dengan kemandirian (r = 0,600), terdapat hubungan yang signifikan antara konsep diri dengan kemandirian (r = 0,592). Hubungan ganda antara kompetensi interpersonal dan konsep diri dengan kemandirian tidak dapat dianalisis karena terjadi kolinearitas antara dua variabel bebas. Kata Kunci    :    Kemandirian, Kompetensi Interpersonal, Konsep Diri

RATIO OF NUTRIENT AND DIATOM-DINOFLAGELLATE COMMUNITY IN SPERMONDE WATERS, SOUTH SULAWESI

Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 7, No 2 (2015): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Jurnal Ilmu dan Teknologi Kelautan Tropis

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Abstract

Runoff of nutrients (N, P, Si) from the mainland would disrupt the balance of nutrients in the waters resulted in changing microalgae communities composition, especially between diatom and dino-flagellate (Dia/Dino). This study was aimed to analyze the relationship of nutrient ratios (N/P, N/Si, Si/P) in the waters, to the density ratio of the Dia/Dino in the coastal and marine waters of Spermonde archipelago, South Sulawesi, Indonesia, which experience nutrient enrichment. Nutrients and phyto-plankton samples were collected from the coastal waters of Tallo, Maros, Pangkep, and seawaters of Spermonde in three seasons (transition, wet, and dry). The results showed the average value (± stan-dard deviation) of Dia/Dino ratio in the coastal and sea waters is 1422±1742 and 1174±1290 in the transition season; 238±205 and 1039±2264 in the dry season; and 153±270 and 72±71in the rainy season. Meanwhile, in the marine waters the ratio of Dia/Dino ranges between 1 and 9839. The ratio of Dia/Dino was not different significantly (p>0,05) by spatial and temporal, but Dia/Dino ratio was different significantly (p<0,05) on the ratio of nutrients in coastal waters, where the value of N/Si ratio tends to ignite monospesies enrichment diatom (Chaetoceros) with a variant of 70,4%. Keywords: nutrient ratios, diatom, dinoflagellate, coastal, Spermonde

Penurunan Jumlah Cacat Dan Biaya Bahan Baku Dengan Metode Responsesponsse Surface

Jurnal Teknik Industri Vol 14, No 2 (2013): Agustus
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

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Abstract

CV.   Indah Cemerlang  is a  company  for building material which  produces paving  stone. The company  often  changes  the raw materials composition which is affected  by  cost  of raw materials. Change of  the raw  materials composition  makes  product quality  lower. Therefore, a study should be conducted in order to identify  control factors  influencing on defect responsse by using Responsse  Surface  method. Responsse surface method used in this research consists of two stages. First stage, called orde 1, is dealing with screening and second stage, called orde 2, is dealing with optimization. The result of orde 1 shows that the raw materials composition influencing on defect responsse are cement volume and gray stone. According to the result of second stage, the experiment is conducted to determine optimal amount of raw materials composition. Optimal amount of the raw materials composition are 20 liters of water, 47 kilograms of cement, 120 kilograms of sand, and 10.45 doses of gray stone, with value of defect responsse 5.08%. Applying proposed composition can decrease cost of raw material by Rp 49,33 per pallet and cost of poor quality by 47.60 per week.

THE EFFECT OF TEMPERATURE AND NITRATE COMPOUND ON GROWTH, BIOMASS AND FREE FATTY ACID CONTENT ON MICROALGAE CULTURE OF Spirulina sp. and Skeletonema sp.

Jurnal Bahan Alam Terbarukan Vol 7, No 1 (2018): June 2018 [Nationally Accredited]
Publisher : Semarang State University

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Abstract

Temperature and availability nutrients played an important role on growth and lipid production of microalgae. In this study, we examined the effect of increasing suhu and excessed and depleted NO3 on growth rate, biomass and free fatty acid concentration in the Spirulina sp and Skeletonema sp. Two microalgae were culture on Conway and Milne media for 21 days using continuous culture technique. There were four temperature treatments, such as 28oC, 30oC, 32oC and 34oC and three nutrient treatments, which were control nutrient treatment, without NO3 and two times NO3 concentrations from control treatments with three replicates for each treatments. Results found that increasing temperature significantly affected on biomass and concentration free fatty acid, meanwhile nutrient treatments affected on growth rate, biomass and concentration of organic Carbon. In general, increasing temperature was more affected on Spirulina sp in terms of increasing growth rate, biomass and free fatty acid concentration. However, Skeletonema sp was more responsive to availability of NO3 in the media culture for increasing free fatty acid, and percentage of free fatty acid per dry weight.

Metode Pembaruan Undang-Undang Perkawinan Muslim Kontemporer di Indonesia

Millah: Jurnal Studi Agama Vol. III, No. 1, Agustus 2003 Islam Lokal
Publisher : Program Magister Ilmu Agama Islam, Universitas Islam Indonesia

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Abstract

Pembahasan tentang poligami belakangan ini semakin marak dengan adanya pemahaman baru yang lahir seiring dengan munculnya aliran aliran pembela wanita atau aliran feminisme. Berbagai penafsiran tentang ayat-ayat yang berhubungan dengan poligami diungkap kembali dan bahkan dikontekstualisasi ulang.        

LIGNIN AND CARBON ISOTOPES COMPOSITION OF SUSPENDED PARTICULATES BY CAPILLARY GAS CHROMATOGRAPHY OF CUPRIC OXIDE OXIDATION PRODUCTS

Marina Chimica Acta Vol 19, No 1 (2018): Volume 19, No. 1 (2018)
Publisher : Hasanuddin University

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Abstract

Lignin are high molecular weight phenolic polymers that occur as major constituents of vascular plants. As a result of their natural abundance, wide distribution, and resistance to microbial degradation, lignin are also commonly found in soil and sedimentary organic matter. The aim of this study was to identify the contribution of lignin to the suspended particulate fraction in the Losari Beach and Lae-lae Island, where indicate highly degraded lignin materials. Lignin was characterized by oxidative degradation, cupric oxide being chosen as the most suitable oxydizing agent to produce simple lignin-derived phenols that are extracted with hexane and analyzed by capillary gas chromatography on fused silica columns, provides the high sensitivity and precision required for the identification and quantitation of trace levels of lignin in seawater. A suite of up to 8 phenols is produced that reflects the relative concentration and plant tissue sources of lignin present in the suspended material.

ZOOPLANKTON COMMUNITY IN LAMALERA SEA AND SAWU SEA, EAST NUSA TENGGARA

Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 5, No 1 (2013): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Bogor Agricultural University

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Abstract

Zooplankton community was studied in Lamalera Sea and Sawu Sea during DIKTI-P2O LIPI Expedition from 19 – 30 July 2011. Besides being a potential fishing ground, the Lamalera sea and Sawu Sea have been a migration path for Cetacean (large marine mammals), particularly during the southeast monsoon season. The purposes of this study were to investigate community structure, abundance, and spatial distribution of zooplankton in the Lamalera Sea and the Sawu Sea.  Plankton samples were collected from 23 stations, by NORPAC 300 µm-net that was vertically hauled from maximum 200 meter depth up to the surface water. The result showed that there were 45 taxa of zooplankton, which was dominated by copepods . The abundance of the zooplankton between 491 - 4537 individu/m3. Average diversity index and evenness values were 1.59 ± 0.21 and 0.50 ± 0.04, respectively. In this area, Creel has been found in all research stations but the abundance was small. Species composition was relatively the same between sampling stations suggesting that there was no different in composition between north and south parts, which virtually comprise of different water masses. It showed that spatial distribution of zooplankton was relatively  wide-reaching. Keywords: zooplankton, copepoda, creel, Lamalera sea, and Sawu Sea.

SPATIAL AND TEMPORAL VARIATION OF THE TOTAL SUSPENDED SOLID IN THE SOUTH SULAWESI COASTAL WATERS

Marina Chimica Acta Vol 19, No 2 (2018): Volume 19, No. 2 (2018)
Publisher : Hasanuddin University

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Abstract

Suspended solids are the main ingredients forming precipitates that can inhibit the ability to form organic compounds in coastal and marine waters. This study aims to determine the concentration of Total Suspended Solid (TSS) in coastal and marine waters of the west coast of South Sulawesi collected in different seasons, namely October 2017 (dry season) and March 2018 (rainy season). TSS concentrations generally higher in the rainy season (34-47 ppm) compared to the dry season (10-25 ppm). On location, higher TSS concentrations were obtained in the Tallo river waters, namely 10–47 ppm (28.9 ± 13.4 ppm) compared to locations in Pangkep river waters 14–43 ppm (27.4 ± 11.2 ppm). The results showed that the Total Suspended Solid (TSS) in marine waters and still comply with the limit values set by the Ministry of Environment (MOE).