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All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Silvikultur Tropika (JST) Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa JPG (Jurnal Pendidikan Geografi) Info-Teknik EnviroScienteae Communications in Science and Technology Civil and Environmental Science Journal (CIVENSE) Jurnal GEOSAPTA Cerucuk. Prodi S1 T. Sipil. Buletin Profesi Insinyur Jurnal Teknologi Berkelanjutan Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT JURNAL REKAYASA KIMIA & LINGKUNGAN
Yulian Firmana Arifin
Universitas Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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AN ALTERNATIVE METHOD OF PREVENTING COASTAL EROSION IN KERASIAN ISLAND Yulian Firmana Arifin; Gusti Ihda Majaya; Muhammad Noor Azhari; Ellyn Normelani
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa Vol. 9 No. 1 (2020)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (661.163 KB) | DOI: 10.22225/pd.9.1.1672.25-38

Abstract

In 2013, Kerasian Island experienced erosion, which caused the coastline to shift ± 100 m from the initial condition. In some places, the retaining wall has been damaged so that it does not function properly. An effort is needed so that the beach does not experience abrasion and is safe for the activities of residents or tourists who come there. Before deciding on an alternative, first of all, is to choose from many erosion prevention methods that are suitable for the beach conditions there. The selection was conducted using the Analytical Hierarchy Process (AHP) method. Based on the AHP method, groin combined with mangrove planting is a suitable method to be applied on Kerasian Island. The groin design refers to the Pd T-04-2005-A guidelines issued by the Indonesian Ministry of Public Works. The dimensions of the design results and groin material used are explained in detail in the paper.
Pengaruh Kadar Air dan Enerji Pemadatan terhadap Hydraulic Conductivity Lempung yang Dipadatkan Arifin, Yulian Firmana
INFO-TEKNIK Vol 2, No 1 (2001): INFOTEKNIK VOL. 2 NO. 1 2001
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v2i1.449

Abstract

This research will observe the effect of water content and compaction effort to the hydraulic conductivity of Karang Pilang Surabaya Clay used for clay liner of municipal waste disposal area.In this research, clay was taken from Karang Pilang, Surabaya.  Clay was compacted with Standard Proctor and Modified Proctor Tests.  From each of them,five sample were prepared at different water content (wc apt),2 (two) at wc<wc apt (wet side).  In order to obtain the hydraulic conductivity (k) of the clay liner, falling head test using 0.005 N CaSO4 was carried out.The result showed that hydraulic conductivity of compacted clays with the increasw of water content until ± 4 % over wopt.  The hydraulic conductivity of compacted at wit side is lower than the clay compacted at dry side.  The increase of compaction effort increasing density of clay results in the increase of hydraulic condctivity significantly.  For different clays, higher density does not assurance lower hydraulic conductivity, the hydraulic conductivity is also influenced by plasticity of clays. 
Engagement and commitment in Eco-Campus activities of pre-service teachers: Confirmatory factor analysis Hanifah Mahat; Nasir Nayan; Mohmadisa Hashim; Yazid Saleh; Saiyidatina Balkhis Norkhaidi; Ellyn Normelani; Yulian Firmana Arifin; Nasruddin Nasruddin; Norma Yuni Kartika; Rosalina Kumalawati
International Journal of Evaluation and Research in Education (IJERE) Vol 11, No 3: September 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v11i3.22001

Abstract

This study was conducted to confirm the instrument of sustainability engagement and commitment in Eco-Campus activities of pre-service teacher. Respondents consisted of 500 pre-service teachers who were selected using stratified sampling techniques. The variables studied or the factors generated from exploratory factor analysis (EFA) of this study include knowledge, attitude, engagement, and commitment. Data were analyzed descriptively to obtain the reliability of the Cronbach's alpha value and confirmatory factor analysis (CFA) was used to obtain a four-factor solution using SPSS 22 and AMOS 20 software. The results of the analysis showed that the Cronbach's alpha value was in the high classification of more than 0.80. The results of the CFA analysis for the measurement model showed that the four-factor solution was compatible and acceptable based on the recommended fit indices (CMIN=214.073, DF=49, CMIN/DF=4.369, p=.000, GFI=.941, CFI=.971, TLI=.961, RMSEA=.082). As a result, the 36-item measuring model created was suitable for assessing sustainability participation and commitment in Eco-Campus activities, particularly among pre-service teachers in Malaysia.
ECOLOGICAL ANALYSIS OF GELAM (Melaleuca cajuputi) ON PEATLAND IN SOUTH KALIMANTAN Yudi Firmanul Arifin; Siti Hamidah; Yulian Firmana Arifin
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika (Suplemen Desember)
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.7.3.S77-S79

Abstract

Until now the raw material of wood especially Gelam (Melaleuca cajuputi) for supporting the construction of housing and other infrastructures is increasingly demand in Indonesia. On the Island of Borneo that partly consists of peat swamps needs Gelam very large and continuous, particularly for residential development. Ecological aspects are very important for supporting the silvicultural strategies. The aim of this study is to analyze ecological aspects which are very influence especially physical and chemical soil properties and microclimate as well. The utilization of study is to determine the silvicultural strategies for continuing production and conservation of Gelam in the future. The method was used a field survey around Gelam forest and did collecting samples and measuring there. The results showed in South Borneo the potency of Gelam is only 2,9-7,1 m3/ha and decreasing yearly. Normally Gelam with a diameter <4 cm have been cut down, as well as > 30 cm. Gelam can grow on the peat swamp forest where the soil was low pH 3.5-3.9. Most of pH of soil in these areas was influenced by phyrite (FeS2 of 0.4-2.2% and highest of Fe 90-302 ppm. C organic in the soil was included low-moderate 5.5-10.0%. Result of soil physic analysis showed composition of sand, dust, and clay of 9 : 54 : 57 % respectively. Temperature and humidity around peat swamp forest areas where was found Gelam were 31-33oC and 63-73% respectively. Most of areas around Gelam were grown Gelam Tikus (Syzygium inophylla) and some kind of shrubs.Key words: Gelam, potency, ecological aspects, silviculture
PERSEPSI WISATAWAN TERHADAP FAKTOR PERMINTAAN SARANA DAN PRASARANA WISATA PASAR TERAPUNG LOKBAINTAN PROVINSI KALIMANTAN SELATAN Yulian Firmana Arifin
JPG (Jurnal Pendidikan Geografi) Vol 4, No 4 (2017)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (337.106 KB) | DOI: 10.20527/jpg.v4i4.3806

Abstract

Penelitian ini berjudul “persepsi wisatawan terhadap faktor permintaan sarana dan prasarana wisata pasar terapung Lokbaintan Provinsi Kalimantan Selatan”. Tujuan penelitian ini adalah untuk mengetahui bagaimana persepsi wisatawan terhadap faktor permintaan sarana dan prasarana wisata pasar terapung Lokbaintan Provinsi Kalimantan Selatan.Populasi dalam penelitian ini adalah wisatawan yang berkunjung di pasar terapung Lokbaintan,  Pengambilan sampel untuk pengunjung menggunakan teknik insidental sampling atau teknik penentuan sampel berdasarkan kebetulan, yaitu pengunjung yang secara kebetulan ditemui  oleh peneliti selama 1 minggu penelitan lapangan Analisis persepsi pengunjung terhadap faktor penawaran dan permintaan wisata menggunakan Skala LikertBerdasarkan hasil penelitian tentang persepsi pengunjung terhadap permintaan sarana dan prasarana wisata pasar terapung dapat disimpulkan bahwa sikap pengunjung  rata – rata sangat setuju (SS) dan setuju (S)  terhadap adanya pembangunan jalan, pembangunan rambu penunjuk jalan, penyediaan angkutan umum, pembangunan sungai seperti rumah lanting dll, pembangunan rambu-rambu transportasi sungai, pembangunan sarana air bersih, pembangunan pos keamanan,  pembangunan area taman di darat, pembangunan wc umum didarat. ketersediaan penginapan pembangunan toko cendramata baik yang dikelola swasta maupun yang dikelola masyarakat. Kata Kunci: persepsi, wisatawan, sarana dan prasarana, pasar terapung
STABILISASI TANAH LEMPUNG LUNAK DENGAN KAPUR PADA KONDISI KADAR AIR LAPANGAN Yulian Firmana Arifin; Markawie Markawie
INFO-TEKNIK Vol 14, No 1 (2013): INFOTEKNIK VOL. 14 NO. 1 2013
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v14i1.308

Abstract

This paper discusses the soft clay soil stabilization with lime on the condition of the water content of the field. The sample used is soft clay of Marabahan, Barito Kuala, South Kalimantan. The water content of the sample is initially 76.2%. Samples were mixed with natural limestone that has been crushed and screened through a sieve No. 20 the percentage of 4, 8, 12, 16, and 20 percent based on the dry weight of the sample. Samples were mixed with lime cured for 7 and 14 days. Some of the tests performed in the laboratory include testing soil plasticity, direct shear tests, unconfined compression test, vane shear test, consolidation, and CBR. The results showed a decrease in the values of soil plasticity (liquid limit and plasticity index) and soil compression parameters (cc and cs) with the increased percentage of lime. While the values of cohesion, friction angle in, qu and qr, and CBR increases with increasing percentage of lime. The results also showed that the curing time effect on soil parameters were mixed lime.
Pengaruh Lindi Sampah Perkotaan terhadap Kandungan Kimia Lempung yang Dipadatkan pada Kadar Air yang Berbeda Yulian Firmana Arifin
INFO-TEKNIK Vol 9, No 2 (2008): INFOTEKNIK VOL. 9 NO. 2 2008
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v9i2.1754

Abstract

This research focused on the effect of leachate from municipal waste disposal are (WDA) on the chemical constituents of the clay liner with varies water content. In this research, leachate was taken from Sukolilo WDA and clay for clay liner was taken from Karang Pilang, Surabaya. Clay was compacted with modified Proctor tests. From each of them, samples were prepared at different water content, those are; at optimum water content (wc opt), at wc<wc opt, and at wc>wcopt. Falling head test using 0,005N CaSO4 was carried out. The k value was determined when the hydraulic conductivity was constant. Afterwards, the liquid was replaced with the leachate. Chemical constituents of clay liner were obserbed before and after test. The results show that most of the chemical constituents of clay liner, which permeated by leachate, increase corresponding to the dominant constituent of the leachate. This change is influenced by water content of the clay liner.
PEMBUATAN DAN KARAKTERISASI MATERIAL KOMPOSIT SERAT IJUK (Arenga pinnata) SEBAGAI BAHAN BAKU COVER BODY SEPEDA MOTOR Achmad Kusairi Samlawi; Yulian Firmana Arifin; Pandu Yuda Permana
INFO-TEKNIK Vol 18, No 2 (2017): INFOTEKNIK VOL. 18 NO.2 2017
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v18i2.4352

Abstract

The purpose of this research is to know the influence of composition of mass fraction between filler and matrix to mechanical strength of composite material utilizing fibers fiber (arenga pinnata) as filler with polyester resin matrix, composition of fiber fraction mass and polyester resin is 30%:70%, 40%: 60% and 50%: 50% with fiber angle orientation: 0; 0; 0; 0, using the Hand Lay Up making composite methode. Impact test is done with ASTM D5942-96 standard and Tensile Testing is done with ASTM D638-03 standard. Impact test results show that all composition of mass fraction have value Energy impact above Energy impact Cover Body Motorcycle Brand X used as comparative material, 50%: 50% mass fraction composition yield the highest impact energy value equal to 198,75 Joule / cm2. Tensile Test showed the composition of mass fraction 50%: 50% yield value of tensile strength equal to 27,09 MPa is the value of tensile strength most closely to value of tensile strength of comparative material of 30,24 MPa, Tensile Test also shows all composition of mass fraction have the percentage of length increase above the percentage of comparative material, the composition of 50%: 50% mass fraction yields the highest percentage of 4.02%. This research concludes that fiber composite material (arenga pinnata) with 50%: 50% mass fraction composition is feasible to be used as an alternative material Cover Body Motorcycles.
APLIKASI TEKNOLOGI DIGESTER UNTUK PENGOLAHAN HUMAN MANURE, SAMPAH ORGANIK DAN LIMBAH CAIR DOMESTIK DI ASRAMA MAHASISWA KOTA BANJARBARU KALIMANTAN SELATAN Achmad Kusairi Samlawi; Yulian Firmana Arifin; Lailan Ni&#039;mah
INFO-TEKNIK Vol 17, No 1 (2016): INFOTEKNIK Vol. 17 No. 1 2016
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v17i1.1268

Abstract

Student dormitory is one of the facilities provided as a means of support for the students in their studies in Universities. Because many students who come from outside the region where the study was held. Dormitory students have an important role in supporting the successful development in the field of education as well as business opportunities to boost the economy of the people who live around educational institutions. However on the other side where the hostel will generate waste, among others, feces and urine, organic and inorganic garbage and domestic waste which if not managed properly could potentially cause health problems, and aesthetics. The problems that have been faced by managers and occupants of a student dormitory in the Kelurahan Sungai Besar, Kecamatan Banjarbaru Selatan, Banjarbaru City is the lack of knowledge of how the processing waste human manure, organic waste and domestic waste water so it does not pollute the surrounding environment and at the same time converting the processed organic waste into a resource new energy, namely biogas and compost.Digester technology applications will generate a set of tools Human waste processing manure, organic waste and domestic waste. This technology is the processing of organic material anaerobic digester technology in the form of organic waste that the waste that comes out of the digester safely discharged into the environment. Aside from being a waste treatment plant, the solution can also produce biogas to biogas formed later expected to be utilized as a fuel substitute for LPG and fuel Generator Set (Genset) as a substitute fuel (gasoline) in addition produce a byproduct of compost were also no less economic value. Inside the digester hydrolysis and fermentation process occurs, phase Acetogenesis and methanogenesis phase of organic waste into biogas and its byproducts are composted. The process takes 20-30 days. Wastewater digester output of the reactor is no longer harmful to humans, the environment and other living organisms that are not harmful to the environment if disposed of.
Analisa Drainase Sumur Resapan Pada Kampus UNLAM Banjarbaru Chairil Fachrurazie; Yulian Firmana Arifin; Dewi Sri Susanti
INFO-TEKNIK Vol 3, No 1 (2002): INFOTEKNIK VOL. 3 NO. 1 2002
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v3i1.454

Abstract

One of the enviromental drainage that consider water conservation aspect isdrainage by infiltration rehargr system.  Banjarbaru has a high coeffiesient permeability soil and gate on laboratory measurement of soil mechanic, for study area gaied k = 1,23.10 cm/sec dan k = 1,62.10 cm/sec, f = 0,046 m/hr, f = 0,054 m/hr dan f = 0,113 m/hr and ground water level from -7 to -8 meters.  According to rainfall intencity measurement, the rainfall intencity is 71,65 m/hr for 5 year return priode with Q = 0,068 A m3/det.  Result for infiltration recharge system the dimension is get for H = depth of well, R = radius of well, n = number of wells is drawing in graph.
Co-Authors Abdi, Ari Surya Achmad Kusairi Samlawi Adi Saputra Adriani Adriani Agus, Setianto Samingan Akram, Muh. Chairil Fachrurazie Chairul Irawan Dewi Sri Susanti Ellyn Normelani Fakhrur Razie Gusti Ihda Majaya Hanifah Mahat Iryanti Fatyasari Nata, Iryanti Fatyasari Lailan Ni`mah Markawie Markawie Marwaji , Muhammad An Al Mawarji, Muhammad An Al Meilana Dharma Putra Mikhael, Peredrik F. Mira Asnia Mohmadisa Hashim Monica, Jeane Muhammad An Al Mawarji Muhammad Hafizhir Ridha Muhammad Noor Azhari Muhammad Nur Arfiandoyo MUHAMMAD RIZAL Nasir Nayan Nasruddin Nasruddin Norma Yuni Kartika Nurhakim Nurhakim Pandu Yuda Permana Reinaldy, Wilmar Ridha, Muhammad Hafizhir Rizqi Arrahman Rosalina Kumalawati Rosmasari Marisa Saiyidatina Balkhis Norkhaidi Siti Hamidah Siti Hamidah Siti Hamidah Siti Helmyati Taufik Hidayat Yazid Saleh Yudi Firmanul Arifin Yusanto Nugroho Yuswinda Febrita