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SUB-PIXEL IMAGE CLASSIFICATION OF HYPER-SPECTRAL DATA FOR VEGETATION AND SOIL MAPPINGIN SEMI-ARID ENVIRONMENT Muhammad Kamal
Indonesian Journal of Geography Vol 41, No 2 (2009): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2267

Abstract

The HyMap hyper-spectral data was used to classify photosyntheticvegetation (PV), non-photosynthetic vegetation (NPV), and exposed soils in a semiaridsavannah environment of McKinlay, northern Queensland, and Australia. Thisstudy aimed to understandhow effective the sub-pixel classificationapproach appliedon hyper-spectral data to distinguish the vegetation and soil features in semi-aridenvironment. In contrast to the per-pixel approach this approach treats the pixelvalue as reflectance sum of its composite features, and shows its componentabundance. The most commonly used sub-pixel classification technique was used inthis research, namely Linear Spectral Unmixing (LSU). End members were used asthe input class, and the result was compared with the standard maximum likelihoodclassification (MLC) using post-classification comparison method The result of thisstudy shows that LSU produced a patchy distribution of classes throughout theimage. The brown soil tends to be over-estimated with respect to other classes. PVfeatures were relatively well-mapped compare to other classes. NPV features haveproblem with domination of exposed soil reflectance. This is equivalent to theprevious studies result that background soil dominates the spectral reflectance inthis environment. According to the qualitative accuracy assessment, LSU hashigher accuracy in representing PV and NPV compare to the traditional MLCclassification.
THE RELATIONS BETWEEN URBAN PARKS AND PERSONAL WELL-BEING IN BRISBANE, SOUTH-EAST QUEENSLAND, AUSTRALIA Hoàng Công Trí; Nguyễn Thanh Hùng; Muhammad Kamal
Indonesian Journal of Geography Vol 44, No 1 (2012): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.2388

Abstract

The positive impacts of urban parks on human health have been analysed in many studies,but nearly none of them provide a suitable method to explain quantitatively the satisfactionand dissatisfaction of park uses on personal health. Bayesian Belief Network (BBN) wasemployed to examine individually well-being spirit in relation to the changes of quality ofparks and the joyfulness on access to parks. This study aims to find answers for questions‘why and where are people happy or unhappy with their health in connections to urbanparks?’ The data for Brisbane area were extracted from the quality of life survey in South-East Queensland, Australia. 70% data was used for learning model parameters; the rest wasfor model testing. The generated model had 73.17% accuracy, and it was imported to ArcGISfor constructing probabilistic maps. Due to the high density of sample points, InverseDistance Weighted (IDW) interpolation was chosen to illustrate the probable happiness andunhappiness on personal health. The result shows that quality of urban parks controlledstrongly the fulfilment of personal health. Local governors can successfully enrich the qualityof urban lives by improving the quality of parks in some specific regions.
Pengaruh Penambahan Omafac Improved dalam Ransum Ayam terhadap Produksi dan Kualitas Telur Muhammad Kamal
Buletin Peternakan Vol 11, No 1 (1987): Buletin Peternakan Vol. 11 (1) Maret 1987
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v11i1.1801

Abstract

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KUALITAS PELAYANAN PRAMUWISATA DI ISTANO BASA PAGARUYUNG Muhammad Kamal; Syofia Achnes
Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik Vol. 5: Edisi I Januari - Juni 2018
Publisher : Fakultas Ilmu Sosial dan Ilmu Politik Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research is to know about the quality of service guides in Istano Basa Pagaruyung Tanah Datar regency of West Sumatra Province. The study aims to know how the quality of service guides in Istano Basa Pagaruyung District Tanah Datar West Sumatra Province. This research uses a descriptive method quantitative to examine the issues raised. The sample used in this research is 100 respondents taken by accidental sampling. While data collection techniques in this study using observation, questionnaires and interviews. Based on the results of research that has been done, that the quality of service guides in Istano Basa Pagaruyung Tanah Datar regency of West Sumatra Province still low and needs to be improved again. Viewed by five dimensions, namely dimensions tangible, reliability, responsiveness, assurance and empathy. Keywords: Service Quality, Tangible Dimension, Reliability Dimension, Dimension  Responsiveness, Dimension Assurance, Dimension Empathy.
Workers Protection with a Fixed-Term Employment Contract System based on the Employment Statutory Regulations Muhammad Kamal
Susbtantive Justice International Journal of Law Vol 3 No 2 (2020): Substantive Justice International Journal of Law
Publisher : Faculty of Law, Universitas Muslim Indonesia, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/substantivejustice.v3i2.89

Abstract

This research aims to identify and understand the position of legal protection for workers with a system of fixed-term employment contracts in the aspects of work relations, protection, and wages based on Employment laws and regulations. This research uses an empirical normative research method which combines the normative legal approach with empirical research. The results of this study indicate that there are still many companies in Makassar City that do not implement statutory regulations, especially regarding workers 'rights, for example, workers' status based on fixed time or a Non-Specified term employment contract and wages that are not in accordance with the city's minimum standard. As for the conditions of the workers, based on the analysis result from the prescriptive aspect, there were 95 or 47.50% of 200 workers starting a cooperative relationship without making a written agreement. Furthermore, there are as many as 55 or 27.50% of 200 workers assess that in their work activities, they do not get rights, there are also as many as 110 or 55.00% of 200 workers do not know what the form of worker rights is. Furthermore, there were as many as 140 or 70.00% of the 200 workers who received compensation that did not match the minimum wage in 3 (three) companies in Makassar City. These problems can be resolved appropriately if Law no. 13 of 2003 is properly implemented by Labor Inspectors and Specialist Labor Inspectors as the person in charge based on Minister of Manpower Regulation (Permenaker) No. 33 of 2016.
COMPARISON OF MODEL ACCURACY IN TREE CANOPY DENSITY ESTIMATION USING SINGLE BAND, VEGETATION INDICES AND FOREST CANOPY DENSITY (FCD) BASED ON LANDSAT-8 IMAGERY (CASE STUDY: PEAT SWAMP FOREST IN RIAU PROVINCE) Faisal Ashaari; Muhammad Kamal; Dede Dirgahayu
International Journal of Remote Sensing and Earth Sciences (IJReSES) Vol 15, No 1 (2018)
Publisher : National Institute of Aeronautics and Space of Indonesia (LAPAN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (779.58 KB) | DOI: 10.30536/j.ijreses.2018.v15.a2845

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Identification of a tree canopy density information may use remote sensing data such as Landsat-8 imagery. Remote sensing technology such as digital image processing methods could be used to estimate the tree canopy density. The purpose of this research was to compare the results of accuracy of each method for estimating the tree canopy density and determine the best method for mapping the tree canopy density at the site of research. The methods used in the estimation of the tree canopy density are Single band (green, red, and near-infrared band), vegetation indices (NDVI, SAVI, and MSARVI), and Forest Canopy Density (FCD) model. The test results showed that the accuracy of each method: green 73.66%, red 75.63%, near-infrared 75.26%, NDVI 79.42%, SAVI 82.01%, MSARVI 82.65%, and FCD model 81.27%. Comparison of the accuracy results from the seventh methods indicated that MSARVI is the best method to estimate tree canopy density based on Landsat-8 at the site of research. Estimation tree canopy density with MSARVI method showed that the canopy density at the site of research predominantly 60-70% which spread evenly.
AKUMULASI BAHAN KERING BEBERAPA VARIETAS JAGUNG HIBRIDA (Zea mays L.) YANG DITUMPANGSARIKAN DENGAN UBIKAYU (Manihot esculenta Crantz) Ragil Alsabah; Sunyoto Sunyoto; Kuswanta Futas Hidayat; Muhammad Kamal
Jurnal Agrotek Tropika Vol 2, No 3 (2014)
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (40.147 KB) | DOI: 10.23960/jat.v2i3.2068

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Sistem tumpangsari jagung dengan ubikayu merupakan cara untuk mengoptimalisasi penggunaan lahan.Bahan kering tanaman merupakan ukuran yang paling sering digunakan untuk menggambarkan dan mempelajari pertumbuhan tanaman. Penelitian ini bertujuan untuk: 1). mengetahui akumulasi bahan kering tanaman jagung yang ditanam secara monokultur dan tumpangsari dengan ubikayu, 2). mengetahui akumulasi bahan kering beberapa varietas jagung hibrida dalam sistem tumpangsari dengan ubikayu. Penelitian ini dilaksanakan di Kebun Percobaan BPTP, Kecamatan Natar, Kabupaten Lampung Selatan dan Laboratorium Ilmu Tanaaman, Fakultas Pertanian, Universitas Lampung pada bulan November 2012 sampai Maret 2013. Perlakuan disusun secara faktorial dengan petak terbagi dalam Rancangan Acak Kelompok (RAK) dengan 3 ulangan.Petak utama adalah pola pertanaman tumpangsari dan monokultur, sedangkan anak petak adalah varietas tanaman jagung yang terdiri atas P27, DK77, DK85, DK95 dan NK22. Petak percobaan yang digunakan pada penelitian ini berukuran 4 x 3,2 m. Data dianalisis dengan ANOVA dan perbedaan nilai tengah perlakuan ditentukan dengan uji beda nyata jujur pada taraf nyata 5%. Hasil penelitian menunjukkan bahwa akumulasi bahan kering tanaman jagung yang ditanam secara monokultur dan tumpangsarimenunjukkan perbedaan secara nyata; bahan kering pada tanaman jagung secara monokultur memiliki nilai yang lebih besar daripada tanaman yang dibudidayakan secara tumpangsari. Sebagian bahan kering diakumulasikan pada biji diikuti batang,daun, akar, tongkol, kelobot dan malai. Akumulasi bahan kering pada beberapa varietas jagung yang ditanam secara tumpangsari menunjukkan perbedaan tidak nyata. Namun demikianvarietas NK22 menunjukkan akumulasi bahan kering yang paling besar dibandingkan dengan varietas DK85, DK77, DK95 dan P27.
PENDUGAAN RAGAM GENETIK DAN HERITABILITAS BEBERAPA GENOTIPE PADI TIPE BARU (PTB) Dulbari Dulbari; Destieka Ahyuni; Nyimas Sa’diyah; Muhammad Kamal
Agroplantae: Jurnal Ilmiah Terapan Budidaya dan Pengelolaan Tanaman Pertanian dan Perkebunan Vol 12 No 1 (2023): Agroplantae: Jurnal Ilmiah Terapan Budidaya dan Pengelolaan Tanaman Pertanian da
Publisher : Jurusan Budidaya Tanaman Perkebunan, Politeknik Pertanian Negeri Pangkajene Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51978/agro.v12i1.525

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This study aims to determine the genetic variance and heritability of yield component and agronomic character of some new plant type (NTP) of rice genotypes planted on two different locations. The research was arranged in randomized complete block design (RCBD) with 12 treatments and three replications as a blok was nested in location (in two locations, i.e.: East Lampung and Tanggamus. The treatment consisted of 10 new type of rice genotypes, i.e.: IPB 3S, IPB 4S, IPB 5R, IPB6R, IPB117-F-7-2-1, IPB 117-F-7-7- 1, IPB 117-F-14-4-1, IPB 117-F-15-4-1, IPB 117-F-20-1-1, IPB 117-F-80- 2-1, and two control varieties, i.e.: Ciliwung and Ciherang. The flowering time, harvesting time, percent of filled grain per panicle, weight of 1000 grains, dray weight of plant, and yield potential have large genetic variability. Plant height, number of tillers, number of productive tillers, flowering time, harvesting time, panicle length, number of filled grain per panicle, number of grain sterility per penicle, percent of filled grain per penicle, weight of 1000 grains, weight of grain per panicle, and dry weight of plant have high heritability. Selection of NPT of rice genotypes was effective because its have wide genetic variability and can be done at an early stage in a character with high heritability.
MODELING OF PHOTOVOLTAIC PANELS FOR GAHARU ESSENTIAL OIL DISTILLATION SYSTEM T Taufik; S Subhan; Arief Mardiyanto; A Azhar; Muhammad Kamal; Atiqah Aida
Jurnal Sains dan Teknologi Reaksi Vol 21, No 01 (2023): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v21i01.4201

Abstract

Solar energy has now been converted into electrical energy by using alternative solar panels to absorb heat energy which is converted into electrical energy. Solar panels or often referred to as photovoltaic systems are an alternative that is being actively developed to deal with the global status of energy shortages because fossil energy sources, which have been the main energy source, will run out as population growth increases. In this study used a solar cell with a capacity of 100 Wp which required 27 units of solar cells. used solar. The absorption power of the solar cell energy used is 2,500 watts with varying operating times, namely 1.5 hours, 3 hours, 4.5 hours and 6 hours. The use of solar cell energy will later be used for agarwood oil distillation. Gaharu wood is pre-treated in the form of drying and soaking before the distillation process is carried out. Pretreatment is carried out with the aim that the resulting essential oil can increase in yield. The results obtained yield showed the best quality at the 20th day immersion time and 10 hours of distillation time (0.51%). The results of the GC-Ms gas chromatogram analysis were indicated by the presence of guaiol, selinene and panasinsen compounds, namely (55.90%), (19.56%) and (5.53%). Keywords: solar cell, renewable energy, agarwood, distillation
PENERAPAN PEMUPUKAN BERIMBANG UNTUK PENINGKATAN PRODUKSI KENTANG DI DESA TAMBAK JAYA, KECAMATAN WAY TENONG LAMPUNG BARAT Ardian Ardian; Kukuh Setiawan; Muhammad Kamal; Muhammad Syamsul Hadi; Erwin Yuliadi; Fitri Yelli; Purba Sanjaya; Wawan Abdullah Setiawan
Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Vol 2, No 1 (2023): Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Vol 2 No 1, Maret 2023
Publisher : Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpfp.v2i1.7106

Abstract

Kentang merupakan salah satu tanaman utama yang ditanam oleh petani di Lampung Barat.  Hingga saat ini masalah utama adalah peningkatan kuaktas dan produksi kentang.  Oleh karena itu tujuan pengabdian ini adalah untuk mengedukasi petani mitra dalam meningkatkan produktivitas dan kualitas kentang per hektar melalui pemupukan berimbang sehingga pendapatan petani mitra dapat meningkat.  Sasaran penyuluhan berupa demonstrasi dan edukasi adalah petani Desa Tambak Jaya, Kecamatan Way Tenong, Kabupaten Lampung Barat. Ada tiga masalah yang menjadi fokus, yaitu ukuran ubi kentang yang tidak homogen, adanya pecah kulit ubi, serta ketahanan periode simpan yang tidak lama.  Target yang akan dicapai adalah peningkatan produksi dan kualitas kentang melalui sistem pemupukan berimbang. Produksi kentang yang dihasilkan dari kecamatan ini rata-rata mencapai 18-20 ton/ha. Produktivitas yang dihasilkan masih tergolong relatif rendah dibandingkan potensi hasil dari bibit yang ditanam, yaitu sekitar 40-50 ton/ha.  Salah satu penyebab rendahnya produktivitas kentang di wilayah ini karena petani tidak menerapkan pemupukan berimbang untuk produksi tinggi dan munculnya retak umbi dan rentannya pengelupasan kulit umbi. Kondisi ini menyebabkan produksi rendah dan kualitas umbi yang kurang.  Manfaat kegiatan pengabdian kepada masyarakat yaitu, petani binaan akan teredukasi dan memahami pentingnya pemupukan berimbang untuk peningkatan produksi dengan mutu yang prima, sehingga pendapatan petani meningkat dan adanya hubungan yang saling menguntungkan antara petani dan pengumpul/mitra usaha karena produk yang berkualitas. Hasil kegiatan pengabdian tim pengabdian dari Universitas Lampung membuat petani kentang di Tambak Jaya sangat tertarik dengan metode pemupukan berimbang dan sesuai dengan kebutuhan tanaman, sehingga produktivitas kentang mencapai 40 ton/ha dengan mutu umbi kentang premium