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Setting Ruang Permukiman dalam Pengembangan Ruang Bermukim Di Kepulauan Togean Sulawesi Tengah
Full text linkTogean the islands are cluster of the small islands located in the district of Tojo Una-una and the very excited tourist attraction in Central Sulawesi Province. Some of the cluster of the islands is the settled place Bajo communities who occupied the coastal areas and the small islands. The islands are formed from the volcanic activity with the fertile plants as well surrounded by the rocks formations. Piles of the rocks to forms and functions as a place to living. Togean the islands has an area of ±362,000 ha and has been designated as one of the Marine National Park in the Indonesia. Case study research approah used with multiple cases, naturalistic quantitative data collection with analysis techniques in exploration.The islands in the islands Togean as a shelter the coastal communities particularly in the settlements on the islands of Enam/Enau (district Togean) and the island Kabalutan (district Walea the island). The two these islands setting show a very specifically lived spaces because it is strongly influenced by of nature physical factors, socio-economic conditions, and the local wisdom there. The development of the settlement spaces setting formal due to : (a) the limited land areas as a dwelling allocation, (b) presense of land potential that can be developed to support the economic life and the preservation of natural environment, and (c) the environmental suistainability of its settlement that a unique and specific. Keywords : Setting Space, Housing, Development Settlemen
Rekayasa Matarial Akustik Ruang Dalam Desain Bangunan : Studi Kasus Rumah Tinggal Sekitar Bandara Adisutjipto Yogyakarta
Full text linkThis research was conducted to determine the conditions and manipulate the acoustic material by the mathematical experiment method the calculations was using a specific formula replacing the value of material acoustic sound coefficient. The focus of this research was analyzing the sound absorption and noise reductions of acoustic materials used in residential arround Adisutjipto airport of Yogyakarta then proceed with the analysis of sound absorption and noise reduction of coconut palm fiber designed acoustic materials based on buiding physical theory.The results show that the low sound absorption and noise reduction of the acoustic material inside the sample chamber was due to the material used had a sound reflector characteristic, so optimize the noise reduction it was needed an additional layer of acoustic material used in the fields. The high sound absorption and noise reduction of the coconut palm fiber desgned materials caused by these materials had sound-absorbing properties. The addition of coconut palm fiber layer for acoustic material could optimize the noise reduction. In addition, the coconut palm fiber acoustic material could be used as an altenative sound dampening material at high frequencies that could potentially reduce the waste of nature. Keywords : Residential, accustics materials, coconut fiber, mathematical experiment
Pengaruh Kompaksi dan Kandungan Grafit Terhadap Karakteristik Mekanis Bantalan Luncur Connecting Rod
Full text linkAbstractBearing is an important component in the automotive industry that is needed to be made of material having good properties. Aluminum graphite matrix composite becomes a selected tribology application in self-lubricating bearing. This composite has good wear resistance andlow density compared with bronze bearing material so that gives more economical values. This research is done by the method of powder metallurgy with aluminum matrix composite material using an additive of 5% graphite weight fraction. Variable compactions (P) are 400 MPa, 500MPa, 600 MPa and sintering temperature is 5500C, with variable holding times (HT) 1 hour, 2 hours and 3 hours. The study aims to analyze the effect of graphite content affecting the mechanical properties of aluminum graphite composite material. The test results show that the optimum condition of 5% graphite content is the density = 5.11 gr/cm3, the hardness = 54.449 HB, the compressive strength = 790 MPa, when P = 600 MPa and HT = 3 hours.Keywords: aluminium, komposit, serbuk, kompaksi, holding time
Analisis Komputasi pada Segmentasi Citra Medis Adaptif Berbasis Logika Fuzzy Teroptimasi
Full text linkAbstract The objective of this research is to analyze the computation of medical image adaptive segmentation based on optimized fuzzy logic. The success of the image analysis system depends on the quality of the segmentation. The image segmentation is separating the image into regions that are meaningful for a given purpose. In this research, the Fuzzy C-Means (FCM) algorithm with spatial information is presented to segment Magnetic Resonance Imaging (MRI) medical images. The FCM clustering utilizes the distance between pixels and cluster centers in the spectral domain to compute the membership function. The pixels of an object in image are highly correlated, and this spatial information is an important characteristic that can be used to aid their labeling. This scheme greatly reduces the effect of noise. The FCM method successfully classifies the brain MRI images into five clusters. This technique is therefore a powerful method in computation for noisy image segmentation. Keywords: computation analysis, MRI Medical image, adaptive image segmentation, fuzzy c-mean
Perbandingan Metode Rasional Dengan Kreatif Untuk Mendesain Alat Bantu Pasang Lampu
Full text linkAbstract This article discusses the result comparison of design process of lamp installation device using rational and creative methods and its usability analysis. The study was conducted through team recruitment, prototype development, prototype selection, and usability testing. The teams recruited involved creative team (K-team) consisting of experienced technical expert and non-exact students, and rational team (R-Team) consisting of exact students with knowledge in product design method. Result of prototype selection using weighted objectives method showedthat rational prototype produced higher total weight compared to that of creative prototype. Usability testing were also conducted in terms of rational and creative prototype methods. Usability testing involved learnability, error, efficiency of use, and satisfaction. Result of usability testing showed that rational prototype had higher efficiency of use, lower error, and higher satisfaction level. Therefore, rational method becomes better design process in lamp installation device. Keywords: product design, creative method, rational method, usability, devic
Pengaruh Pewarnaan Beton Cetak Pada Dinding Serap Sebagai Selubung Bangunan Tinggi
Full text linkAbstrakThe use of exterior building materials will indirectly affect the room temperature. Planners are expected to choose the type of building materials in accordance with the climate andbuilding conditions to produce good quality buildings. One alternative is to use absorbing wall as a building envelope. Absorbing wall is a kind of wall made of concrete plate with a certain thickness (in the study used a thick wall as 10 cm) that could reduce heat to not cause thermal effects on the environment and on the exterior of the building (Frick, 1998). To support the appearance and aesthetics of the building the walls absorb has coloured. Coloring the wall will affect the absorben surface of the wall to ward heat and indirectly affect the room temperature.Besides, the wall thickness and duration of heating also influence.The research method used was an experiment in the laboratory. Observations were madeby measuring temperature in the room which is divided into four stages of observation, of eachwithin 1.5 hours, six hours and one hour.The results showed that the walls absorb the color produced in the room temperature is higher than the outer space with a difference in temperature between 2-60 Celsius. This is due partly because the space is measured is a sealed space, no change of air in the morning and night, so hot that occurred during the day generated by the exterior wall confined in the building. According to the standard of comfort at room temperature, the use of absorbtive wallcolor in these experiments included in the category uncomfortable.Keywords: absorbing wall color, building temperature, heat confine
Pengaruh Functionality Terhadap Kesuksesan Produk
Full text linkAbstractThis study was done for analyzing relation between product functionality and success of a product. Product functionality data of 58 different products were used in this study. The data of products were taken from different types of industry, i.e.: automotive, telecommunication, electronic and service. The result showed that the relation between product functionality andsuccess of a product tends to form “must-be” type of Kano diagram. Therefore, in designing a product, producers should not add more “value” in functionality.Keywords: functionality, Kano diagram, success of a product
Perancangan Aplikasi Sistem Seminar Online Berbasis Internet
Full text linkAbstractOnline seminar system is a real time communication application service used to organizes scientific conference in Internet. The online seminar system application can support text communication, face-to-face communication, dialogue-based communication, and sharing seminar material presentation. The design of the online seminar system application program consists of three parts, which are a server application program, a moderator application program and a client application program.The importance of the real time communication in organizing online seminar system is its capality to create virtual environment (Internet) as a replication of real world communication, because it supports text communication, file presentation, face-to-face communication anddirect dialogue between participants. The face-to-face communication and direct dialogue can create a dynamic interaction environment, because participants can interact face-to-face, directly talk to each other, obtain feedback, present physical reaction of other participants, and chatting using text communication. It become a solution to the problem of distance and time for meeting activities of two or more individuals using internet.The result of the research is a class diagram design that contains group functions and rules/processes necessary in communication. The classes formed in the class diagram design are directly used as object classes at implementation level in the form of online seminar application program code.Keywords: Online seminar system, Real time communication, video conference application design
Ektraksi Ciri Citra Termogram Payudara Berbasis Dimensi Fraktal
Full text linkAbstractThe primary purpose of infrared thermography is the locating of thermal differences and anomalies. Infrared thermography can detect numerous conditions in which an anomaly is characterized by an increase or decrease in surface temperature. In this research, we specifically applied calculation of fractal dimension method to a total of20 thermograms of normal breasts as well as of those in advanced breast cancer. In addition standard image pre-processing were also used to enhance the detection capabilitity. Severalmethods in image processing which are pre-processing with canny edge detection, thresholding, calculation of fractal dimension use box-counting and Hausdorff dimension.The results of this research are shown that Hausdorff dimension in the normal thermogramshave range value 0,4 – 0,95 smaller than the advanced thermograms which have value more than 1,26.Finally this results show that the difference of fractal dimension can be used todistinguish between normal and advanced thermograms.Keywords: canny edge detection, thresholding, fractal dimension, box-counting, Hausdorf
Kinetika Adsorpsi Phenol Dalam Air Dengan Arang Tempurung Kelapa
Full text linkAbstract Phenol is a hazardous chemical which usually contained in the wastewater from some industries, such as oil refineries, coal processing, and plastics. Phenol is dangerous substance to a microorganism although in low concentration in wastewater. According to the United State Environmental Protection Agency, the maximum concentration of phenol in wastewater is 1 ppm. This requirement is lower than the concentration of phenol in normal wastewater discharged from industries that is 100 to 1000 ppm. One of the most efficient practical method to remove phenol in waste water is adsorption. Many adsorbent can be used to adsorp phenol from waste water. In this study, coconut shell charcoal is used as the adsorbent. The adsorption kinetics of phenol in aqueous solution was studied by measuring the concentration of remaining phenol in the solution as a function of time (t) with the parameters of operation temperature (T), particle diameter of coconut shell charcoal (d), and mass ratio of coconut shell charcoal to the solution (r). The adsorption rate was found to be increased as the operation temperature and mass ratio increase, but it was decreased as the particle diameter increase. The empirical rate expression for the adsorption of phenol in aqueous solution with coconut shell charcoal has been determined as: 0,438 0,1313 1/2 0 2497,83 ln 1,4832exp C d r t C RT − ⎡ ⎤ − ⎛ ⎞ =− ⎜ ⎟ ⎢ ⎥ ⎝ ⎠ ⎣ ⎦ with the relative mean error of 30.74%. C in this equation is the phenol concentration at time t, C 0 is the concentration at t = 0, and R is the gas constant (8.314 J/mol/K). This equation is valid for the ranges of T of 303 to 333 K, d of 767 to 1879 μm, and r of 0.0476 to 0.1666, and for the adsorption of phenol in aqueous solution with coconut shell charcoal in erlenmeyer agitated by using shaker bath. Keywords: Adsorption Kinetics, Phenol, Aqueous Solution, Coconut Shell Charcoa