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Teknosains: Media Informasi Sains dan Teknologi
Published by Universitas Islam Negeri Alauddin Makassar
ISSN : 19793154     EISSN : 2657036X     DOI : https://doi.org/10.24252/teknosains
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Physics
Teknosains: Media Informasi Sains dan Teknologi is a peer-reviewed journal that publishes three times a year (January-April, May-August, and September-December) on articles concerning all areas of science and technology in both theoretical and applied research. The below-mentioned areas are just indicative. The editorial board also welcomes innovative articles that redefine any Science and Technology field. Chemistry and Chemical Engineering Physics, Material, and Mechanical Engineering Biology, and Biosystem Engineering Food and Agriculture Engineering Mathematics Computer Science and Engineering Earth Science and Engineering Space Engineering Electrical Engineering Architecture and Civil Engineering Environment Science and Engineering Mechanical Engineering Basic Science in Engineering Education Engineering Education Reforms New Technologies in Education Industry and Education: A Continous Collaboration Research and Development in Engineering Education Globalization in Engineering Education Computers, Internet, Multimedia in Engineering Education Organization of Laboratories
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 476 Documents
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EFEKTIVITAS CAMPURAN PROTOKSIN BACILLUS THURINGIENSIS SUBSP. AIZAWAI DAN KONIDIA BEAUVERIA BASSIANA TERHADAP ULAT GRAYAK SPODOPTERA LITURA F. Eka Sukmawati
Teknosains Vol 8 No 1 (2014): JANUARI
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v8i1.66

Abstract

Armyworm or (Lepidoptera:Noctuidae) is one of main pest in plant crop. This pest might cause damage on the leaves and stems and reduce of crop production. Bacillus thuringiensis subsp. aizawai and Beauveria bassiana have been known as biocontrol agent to this pest. This research was aimed to observe the production time of B. thuringiensis subsp. aizawai toxin, measure the effect of toxin against  Be. bassianaconidia,  to test the activity of their mixture against S. litura. B. thuringiensis subsp. aizawai was grown on specific medium for B. thuringiensis. Toxin production of the isolate was measured every 4 hours up to 48 hours incubation. Be. bassianawas grown on the white rice medium and its conidia was grown on the Potato Dextrose Agar medium. containing toxin. The activity test was done by spraying them to S. litura larvae. The stasionary phase of B. thuringiensis was obtained at 16 hours incubation and the maximal toxin production at 48 hours.. The highest mortality caused the mixture of toxin thuringiensis and conidia Be. bassiana was 96,7%. 
ANALISIS MODEL PROSES INKREMENTAL DALAM PERANCANGAN SISTEM INFORMASI GEOGRAFIS BERBASIS WEB Faisal -
Teknosains Vol 7 No 2 (2013): JULI
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v7i2.90

Abstract

Nowadays, the web based GIS exploiting beginning to start developing for many application. One among them is web based GIS development in land area in the form of land information system. This research aim to develop a web based GIS, especially land information system, by analysis of incremental process modelling as one of software engineering models. The development of the GIS is using tolls like ArcView, Adobe Photoshop, Macromedia Dreamweaver, Apache and MySQL. The result of this research showed that the analysis of incremental process model in web based GIS.
PERANCANGAN SIMULASI SISTEM PENGONTROLAN SUHU DI DALAM RUANG INKUBATOR BAYI BERBASIS MIKROKONTROLLER Juhanis Juhanis
Teknosains Vol 9 No 2 (2015): JULI
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v9i2.1867

Abstract

Di dalam dunia kesehatan, bayi tidak semuanya lahir dalam keadaan normal. Salah satu ketidak normalan itu adalah adanya bayi yang lahir prematur dengan hasil berat badan yang kurang dan itu semua diakibatkan oleh waktu kelahiran bayi yang tidak mencukupi (selama 37 minggu). Hal ini mengakibatkan tingkat bayi lahir prematur yang cukup banyak khususnya pada rumah sakit milik pemerintah. Apabila bayi mengalami lahir prematur maka akan sangat membutuhkan tingkat kehangatan yang cukup stabil, mengingat bayi tersebut belum terbiasa beradaptasi dengan suhu di luar kandungan sang ibu. Sehingga muncul sebuah gagasan untuk membuat suatu rancangan sistem pengontrolan suhu dalam ruang inkubator bayi berbasis mikrokontroler. System ini dirancang dari beberapa komponen yaitu mikrokontroler, sensor kelembaban, sensor suhu, fan DC, filamen, push button, LCD dan sensor suara serta dibangun menggunakan Bahasa pemrograman Code Vision AVR. System ini mengukur suhu tubuh bayi yang berada dalam incubator kemudian suhu yang ada akan dikelola dalam mikro kontroler. Jika suhu dalam incubator lebih tinggi dari suhu normal maka secara otomatis kipas akan dinyalakan dan jika suhu dalam inkubator lebih rendah maka pemanas (hair drayer) secara otomatis akan dinyalakan dan jika dalam incubator dalam keadaan lembab maka akan memberi peringatan dalam bentuk bunyi buzzer. Dengan adanya system ini diharapkan agar dapat memudahkan para pengguna untuk mengawasi bayi-bayi prematur dalam menjaga kondisi bayi dengan temperatur suhu yang stabil.
KARAKTERISTIK ARSITEKTUR RUMAH ADAT WAJO DI KOMPLEKS MINIATUR BUDAYA SULAWESI SELATAN BENTENG SOMBAOPU MAKASSAR Andi Annisa Amalia Annisa Amalia
Teknosains Vol 8 No 2 (2014): JULI
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v8i2.1911

Abstract

Characteristics Wajo custom homes in South Sulawesi Cultural Complex Miniature Somba Opu Makassar is a characteristic which has a typical value for custom home Wajo considered quite representative as one typology miniature traditional houses in South Sulawesi. There are several aspects that were analyzed from architectural aspects, namely: cosmology, layout, mass, layout, shape, material, structure and construction and ornament/decoration. The method used in traditional house miniature architectural characteristics Wajo is using the survey method (direct observation), where the data were analyzed by means of descriptive qualitative method.
STUDI PEMBANGUNAN FRAMEWORK BERORIENTASI OBJEK STUDI KASUS PEMBANGUNAN FRAMEWORK PENJADWALAN Nur Afif -
Teknosains Vol 7 No 1 (2013): JANUARI
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v7i1.81

Abstract

A framework can be defined as a “semi-complete” appication which can be reuse and specialized to produce many application in a specific domain.Building a framework is different from building other kind of software. It needs a special method. This method combines domain engineering and hot-spot driven framework development. Domain engineering is aimed to develop family of system in a domain, which is also suitable to developing framework. This writing also presents study about tools used in domain engineering such as feature modeling and domain specific language (DSL). The proposed method also using hot-spot driven framework development to identify hot-spots and frozen-spots of the framework by using tools such as hot-spot card and framework construction principle (FCP).Chosen case study for implementing the proposed method is scheduling domain. Scheduling was chosen because scheduling is a well-defined science and has many literature so is relatively easy to understands the domain. Scheduling also has many variety spots which is suitable to be implements as framework.
ANALISIS SEBARAN SEDIMEN BERDASARKAN UKURAN BUTIR DAN NILAI SORTASI DI PERAIRAN PULAU DUTUNGAN KABUPATEN BARRU SULAWESI SELATAN Hasriyanti Hasriyanti
Teknosains Vol 9 No 1 (2015): JANUARI
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v9i1.1857

Abstract

This study aims to determine the distribution of sediments basedon the type of grain and sorting values in the waters of the island DutunganBarru. Seabed sediment sampling was also carried out by using a bottomgrab samples were performed at each station. Note the position and timepengamatan.Sampel drawn on the bottom sediment grab samples insertedinto the sediment sample bag and labeled. Laboratory analysis to determinethe type, grain size / diameter of the bottom waters. Field data collectionactivities carried out at 12 sampling points, but there are two points that didnot work because the bottom waters sampled in the form of hard coral,making it very difficult for the presence of basic sediment samples waters.The results showed that the characteristics of the sediment on the islandconsists of silt Dutungan greatest on Observation Station 4 with a value of0.09 grams sorting medium, very fine sand to the largest measurementstation 8 at 8.20 grams with sorting pretty good value, fine sand onmeasurement station 9 at 56.02 grams with sorting value ugly, sand is beinggreatest at Observation Station 1 at 58.28 grams with sorting pretty goodvalue, most large coarse sand on Observation Station 5 at 54.11 grams witha very good value, very coarse sand greatest at 8 Observation Station at21.84 grams with sorting pretty good value, and most large gravel onObservation Station 7 of 63.5 grams with moderate sorting value. On theMeasurement Station 1 is dominated by sand sediment medium (0.25 to 0.85mm) although containing fine sand (0.15 to 0.25 mm) and silt (<0.15 mm)higher than the measurement station other. This is due to its location furtheraway from the beach and sheltered from the effects of ocean waves and thenumber of organic matter and detritus that brought water to accumulate inthe waters of this river, especially at lower currents.
BACKPROPAGATION NEURAL NETWORK BERBASIS PARTICLE SWARM OPTIMIZATION UNTUK PREDIKSI HARGA KARET SPESIFIK TEKNIS Misrawati Aprilyana Puspa
Teknosains Vol 10 No 2 (2016): JULI
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v10i2.1902

Abstract

Rubber is the commodity of the results of demand levels andagricultural production always has increased significantly from time to time.This is due to the high demand of the company's suppliers are the result ofprocessed rubber to meet the needs of production. However, due to theinfluence of the conditions of the global economy so that it appears theinstability of prices. The data used in this research in the form of aUnivariate time series data is converted into the multivariate. The methodused is the method of Back propagation Neural Network (BPNN) is appliedto the data time series technical specific rubber commodity prices with thehelp of weighted optimization Particle Swarm Optimization (PSO) whichhopefully may help to improve the performance of the prediction so thatresults of the RMSE for the prediction of rubber prices gained can be moreaccurate. Of research results obtained the best model on a back propagationneural network with the parameters for the training cycle 600, the learningrate and momentum 0.1 0.2, as well as neuron size 3 whereas in particleswarm optimization value of population size 8, max value. of generation 100,the value of inertia weight 0.3, the value of the local best weight 1.0 andglobal best value weight of 1.0 produces a better RMSE value i.e. 0.040compared to just using the BPNN alone i.e. 0043. This proves that the PSOmethod able to give better results.
PERTUMBUHAN DAN PRODUKSI BERBAGAI VARIETAS KEDELAI (Glycine max L.) DI LAHAN SAWAH TADAH HUJAN Suharno -
Teknosains Vol 5 No 2 (2011): JULI
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v5i2.177

Abstract

One of the success in cultivation ofsoybean is determined by the seed. In Sawahan, Bleberan, Playen, Gunung Kidul, it had been observed at eight varieties ofsoybean. Those are five good national varietions Galunggung (V 1), varietions Wilis (V 2), varietions Mahameru (V3), varietions Malabar (V4) and varietions Bromo (V5) and three good local varieties varietions Local Imogiri (V 6), varietions Local Prambanan (V 7), and varietions Local Playen (V8). The observation was done in November 2007 untail February 2008, its purpose is to know which varieties indicating the good soybean growth and product. The experiment used Randomized Complete Block Design with one factor and 3 replacations. The data is group into two kinds. Those are the growth consisting the number of branch, leaves, and the height and the product the consist ofthe number ofpod, seed, and the weight of 100 soybean seeds. The results showed that application it concludes that good person grows bean it is variation Imogiri (V6), and the good bean of the production is varietion Imogiri (V6). Examinations use to factor of one it concludes that goodperson grows bean it is varietion and the good bean ofthe production is varietion local Imogiri. Key words: soybean variety, growth, produced.
EFEKTIVITAS PROBIOTIK BACILLUS SPP. TERHADAP PERFORMAN AYAM RAS PEDAGING Muh. Nur Hidayat
Teknosains Vol 7 No 1 (2013): JANUARI
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v7i1.72

Abstract

The aim of this research is to know effect of introduced Bacillus spp. as probiotic on the performance of broiler. This research carried out at Laboratory of Poultry Production, Laboratory of Husbandry Pshyology, and Laboratory of Chemichal Husbadry Nutrition Faculty of Husbandry Hasanuddin University, Makassar. This research was based on Randomized Complit Design (RCD) with four replications and treatments, each replications consist of four day old chicken (d.o.c). Treatments were consisted of fourth: (1) Basal feed (negative control) (2) Basal feed + zinc bacitracin 50 mg/kg feed (positive control) (3) Basal feed+ Bacillus spp. with 50 mg/kg feed (8x108 CFU), and (4) Basal feed + Bacillus spp. with 60 mg/kg feed (11.2x108 CFU). Data were analyzed with Analysis of Variance and continued by test Duncan. The result of this research, Bacillus spp. as probiotic significantly effect of feed consumption, wight again, and feed conversion (P<0.05). Bacillus spp. can use as probiotic into poultry feed for decrease used antbiobitic to improve broilers performance.
MENENTUKAN CIRI-CIRI SPESIFIK METODE PENYELESAIAN LIMIT FUNGSI ALJABAR PADA BENTUK TAK TENTU Try Azisah Nurman
Teknosains Vol 8 No 1 (2014): JANUARI
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v8i1.1843

Abstract

This paper discusses the methods of algebraic functions on the settlement limit of indeterminate forms. Limit is a mathematical method used to describe the effect of variable functions move closer to a point on a particular function. The goal is to determine the specific characteristics of the methods of algebraic functions on the settlement limit of indeterminate forms. The methods used is a special method that consists of factoring methods, methods of multiplication herd, and the division with the highest rank method, and the method of L' Hopital. By using the methods mentioned above, then we obtain the specific characteristics of the methods of algebraic functions settlement limit on the indeterminate form are 1. Factoring methods: (a) The numerator is the result of squaring the binomial equation of the denominator. Where, (i) If the binomial equation using the difference operation, then its points is positive. (ii) If the binomial equations using addition operation, then its points is negative. (b) the constant factor of each of the numerator and denominator equally. One of which is a three tribal equation in the form ax2 + bx + c , the value of b it is the sum of the value of the constant multiplication. (c) If the numerator and denominator are both binomial equations with difference operation, where the variables and constants in the numerator is the square of the variable and constant denominator. Or conversely, variables and constants in the denominator is the square of the variable and constant numerator. (d) If the equation is a difference of two fractions where the denominator is a binomial variables and constants in the denominator is the result of one of the squaring of the variables and constants in the denominator of the other. (e) If the equation in the form of fragments which all contain the same variables. (f) If the equation is in the form of two parts, where the coefficients and constants in the numerator or the same multiplication factor, so that when the coefficients and constants removed it will form one of the factors that equation equal to that of the denominator. 2. A herd Multiplication method: (a) If the equation is the difference of two roots. (b) If the equation in the form of the difference or fractions containing amount root form. Both the numerator and the denominator. 3. Distribution by Top Rank methods: (a) If the equation in the form ∞/∞. (b) If a polynomial equation of degree 3, 4, 5,... etc. Which is hard to be factored. 4. L' Hopital method: if the limit point is substituted then produces the indeterminate form 0/0, ∞/∞, ∞-∞ , except if the derivative of the function at the root of the denominator in the form similar to the form factor function in the numerator. Vice versa, the derivative of the function at the root of the numerator shaped form factor similar to the function in the denominator.

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