Articles
36 Documents
Search results for
, issue
"Vol 7, No 2 (2015): November"
:
36 Documents
clear
<![CDATA[PEMANFAATAN KOLEKTOR SURYA SEBAGAI ENERGI ALTERNATIF DESALINASI AIR LAUT UNTUK MENGATASI KRISIS AIR BERSIH ]]>
<![CDATA[Setiabudi, Dedet Hermawan]]>;
<![CDATA[Khudhori, Muhrom]]>
<![CDATA[ Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Adisutjipto ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (111.131 KB)
<![CDATA[This research examined the effect of air velocity and the efficiency of double-pass flat plate solar air heater with two glass covers on the performance of solar desalination unit based on heat pump with using humidification and dehumidification processes. This unit consists of a heat pump, humidifier, dehumidifier, and double-pass flat plate solar air heater with two glass covers. The research was conducted in an indoor experiment. Solar energy generated from solar simulator using halogen lamps. In this research the air flow rate was varied at 3 metres per second, 4 metres per second, 5 metres per second, and 6 metres per second, while the intensity of solar radiation at 828 Watts per meter squared. At each variation in air velocity, sea water temperature was conditioned at a constant temperature of 45 degrees celcius, the compressor was operated at a constant rotation of 900 rpm, volumetric flow rate of sea water inlet 300 liters per hour into humidifier and sea water in this system was re-circulated. The research result showed that the volume of fresh water production increases with increasing air velocity inlet into humidifier. This solar desalination unit could produce fresh water maximum 2470 milliliters per hour in air velocity 6 metres per second.]]>
<![CDATA[ANALISIS STATIK KEKUATAN STRUKTUR FITTING PADA LANDING GEAR PADA PESAWAT N-219 ]]>
<![CDATA[Purnomo, Muhamad Jalu]]>
<![CDATA[ Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Adisutjipto ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (213.393 KB)
<![CDATA[Aircraft structures to be made stronger in order to be able to withstand the force received. The forces acting on the structure can cause deformation and result in structural failure. All components o f the structure o f the aircraft is an important part and it requires a good working resilience to maintain the security (safety). One important component of the aircraft that must be considered is the structure of the landing gear fittings. Fitting is contained in the structure that functions held their landing gear load received all the landing gear and as an intermediary for the landing gear and airframe structure of the aircraft. Because Landing Gear is one important component in the structure of the aircraft. Strength landing gear fittings will be calculated at the time of landing, the burden derived from the speed of the aircraft landing and aircraft load.]]>
<![CDATA[METODE NILAI JARAK GUNA KESAMAAN ATAU KEMIRIPAN CIRI SUATU CITRA (KASUS DETEKSI AWAN CUMULONIMBUS MENGGUNAKAN PRINCIPAL COMPONENT ANALYSIS) ]]>
<![CDATA[Nugraheny, Dwi]]>
<![CDATA[ Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Adisutjipto ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (190.728 KB)
<![CDATA[One commonality or similarity matching phase characteristics of an image is by using the method of distance measurement. Distance is an important aspect in the development of methods of grouping and regression. Before the grouping of data or object to the detection process, first determined the size of the proximity distance between data elements. In this study, there will be a comparison of several methods including distance measurement using Euclidean distance, Manhattan/ City Block Distance, Mahalanobis which will be implemented in the case of cumulonimbus image clouds detection using Principal Component Analysis (PCA). The average percentage of accuracy of image similarity value Cumulonimbus clouds using the Euclidean distance method was 93 percent and the distance Manhattan/ City Block Distance is 90 percent, while the Mahalanobis distance method was 50 percent.]]>
<![CDATA[ANALISIS PENERAPAN MODEL UTAUT (UNIFIED THEORY OF ACCEPTANCE AND USE OF TECHNOLOGY) TERHADAP PERILAKU PENGGUNA SISTEM INFORMASI (STUDI KASUS: SISTEM INFORMASI AKADEMIK PADA STTNAS YOGYAKARTA) ]]>
<![CDATA[Handayani, Trie]]>;
<![CDATA[Sudiana, Sudiana]]>
<![CDATA[ Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Adisutjipto ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (231.773 KB)
<![CDATA[The appears of the popularity of web technologies and applications have created a vast opportunity for organizations, including institutions of higher education. With the presence of Academic information systems (SiAkad) that is in STTNAS, then do some research to find out the intention of the behavior in the use of Academic information systems using the UTAUT model (Unified Theory Of Acceptance And Use Of Technology). The phenomenon underlying this study is: not yet optimal use of Academic information systems by civitas academic (professors, students and employees) in the process of learning and socializing, so the existence of maximal and havent yet SiAkad his crisp utilization impact of its use for the entire civitas academic. The study was limited in its scope: the analysis of the influence of Performance Expextancy, Expextancy Effort, Social Influence and Facilitating Condition against the intention SiAkad usage behavior in STTNAS in Yogyakarta. The data in the study on the test with the SEM analysis tool (Structural Equation Modeling). SEM is a tool of statistical analysis that are used to complete the research of multilevel models simultaneously. SEM can be used to solve equations with variables that make up the path. Research results based on the analysis and discussion is a variable PerformanceExpectancy (PE), Social Influence (SI) and Facilitating Condition (FC) effect significantly to Behavioral Intention, while variable Effort Expectancy (EE) provides results that are not significant. Fourth overall Predictor is only able to explain the impact on behavioral intention of 37,6 percent.]]>
<![CDATA[PENGGUNAAN WATER HEATING PADA MESIN PENGKONDISIAN UDARA SEBAGAI ALAT PENGENDALI KELEMBABAN UDARA DI DALAM RUANG OPERASI DI RUMAH SAKIT ]]>
<![CDATA[Wardoyo, Wardoyo]]>
<![CDATA[ Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Adisutjipto ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (134.667 KB)
<![CDATA[This research was aimed to observe the performance of water heating as an air moisture controller device in a hospital surgery room. The way the research was outside air in 27 degrees until 30 degrees celcius and moisture of 60 until 70 percent made suitable with requirement conditions determined for surgery room in the hospital i.e. 19 until 24 degrees celcius and moisture of 45 until 60 percent. To make that condition, the surgery room was equipped with air conditioner machine and water heating as an air moisture controller device. Hot water was circulated in water heating and air moisture was measured by a hygrometer. Out of this research it obtained: measuring moisture value higher than theoretic moisture value. Calorie volume in water heating increased with water volume that was constant so that water heating could control air moisture. There was a suitability in an air moisture ratio and calorie volume in water heating so that air moisture in surgery room could be measured as requirements.]]>
<![CDATA[ANALISIS BEBAN KERJA MENTAL PEKERJA BAGIAN GROUND H ANDLING BANDARA ADISUTJIPTO UNTUK MENDUKUNG KESELAMATAN PENERBANGAN ]]>
<![CDATA[Poerwanto, Eko]]>;
<![CDATA[Gunawan, Gunawan]]>
<![CDATA[ Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Adisutjipto ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (182.716 KB)
<![CDATA[Increased need for air transport will increase the activity of ground handling at airports. Increased activity of this will affect the mental workload received personnel who carry it out. Any increase in mental workload will affect the occurrence of human error and affect flight safety. Analysis of mental workload ofpart o f ground handling personnel is very important to ensure acceptable personnel workloads according to workload capacity available. This mental workload research using NASA-TLX method, that the procedure uses a multi-dimensional rating, and divide the workload on the basis of the average loading 6 dimensions, namely Mental Demand, Physical Demand, Temporal Demand, Effort, Own Performance, and frustation. NASA-TLX is divided into two phases, namely a comparison of each scale (Paired Comparison) and giving value to the work (Event Scoring). The research objective is to ensure the mental workload of part of ground handling Adisucipto airport in Yogyakarta, in accordance with their capacity, so as to avoid human error and to support aviation safety. The results showed that the mean score of mental workload ground handling activities by PT. Gapura Air and PT. Kokapura Avia in Yogyakarta Adisucipto airport in the mental workload optimization group, which indicates mental workload received by workers are safe (no overload).]]>
<![CDATA[SISTEM PENDUKUNG KEPUTUSAN PENERIMAAN CALON MAHASISWA BARU JALUR PRESTASI DI SEKOLAH TINGGI TEKNOLOGI ADISUTJIPTO MENGGUNAKAN SIMPLE MULTI ATTRIBUTERATING TECHNIQUE ]]>
<![CDATA[Honggowibowo, Anton Setiawan]]>
<![CDATA[ Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Adisutjipto ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (151.358 KB)
<![CDATA[In the era of globalization, educational institutions are required to follow the development of information technology. Information technology required and can be applied as a decision support tool managerial activities at the college. This research aims to develop a decision support system for the Sekolah Tinggi Teknologi Adisutjipto (STTA), namely the acceptance of new students, especially the path of achievement, using the Simple Multi Attribute Rating Technique of Web based, where in the method is choosing alternative criteria that have value and weight has been determined, getting the new students he deserves. Based on the results of testing the system, it was concluded that the method is Simple Multi Attribute Rating Technique is effective enough to be applied in determining the admission of new students in STTA.]]>
<![CDATA[PERANCANGAN TAMPILAN VISUAL DOCKING GUIDANCE SYSTEM (VDGS) PADA SISTEM PARKIR PESAWAT TERBANG ]]>
<![CDATA[Dermawan, Denny]]>;
<![CDATA[Purnomo, Muhammad Jalu]]>
<![CDATA[ Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November ]]>
Publisher : <![CDATA[Sekolah Tinggi Teknologi Adisutjipto ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (202.65 KB)
<![CDATA[Visual Docking Guidance System (VDGS), is a device provided by the airport service to assist a pilot parked the plane on the righr place. On Aircraft parking control activities in the airport, the pilot is assisted by a marshaller that aims to be steering the movement of aircraft to the correct parking spot. The more density of the movement of aircraft on the apron activity requires the use of alternative technology to substitute marshaller, this technology is called Visual Docking Guidance Syatem (VDGS). VDGS display design uses three pieces o f board o f dot matrix display that is made into one to form a combination in accordance with the appearance on the VDGS on the market. Display used is a superbright LED dot matrix. The controller is a three pieces of. PIC 16F84A microcontroller and a series o f shift registers to display the movement of the aircraft to the right, to the left, straight and stops and also display the aircraft identity.]]>
<![CDATA[PERKIRAAN KONSUMSI ENERGI LISTRIK 2013 HINGGA 2030 ACEH TAMIANG ]]>
<![CDATA[Rahmad Purnama]]>;
<![CDATA[Ahmad Agus Setiawan]]>;
<![CDATA[Suhanan Suhanan]]>
<![CDATA[ Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November ]]>
Publisher : <![CDATA[Institut Teknologi Dirgantara Adisutjipto ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (91.63 KB)
|
DOI: 10.28989/angkasa.v7i2.152
<![CDATA[Aceh Tamiang is the province o f Aceh. The use of electrical energy is still not resolved in this case because of the lack of appropriate policies that can be taken because there is still no research how the amount of electrical energy consumption in Aceh Tamiang. the research method used is a model based approach to End Use of data population and households, the data GDP at constant prices, and consumption of electrical energy. All data is sourced from related agencies such as Bappeda Aceh Tamiang Data PLN Kuala Simpang branch. Forecasting electric energy consumption in Aceh on five sectors is the year 2013 was 48.8 GWh, while, in 2030 total energy consumption reached 76.5 GWh, this is an increase of 63.7 percent. The household sector accounted for the largest increase in consumption compared with other sectors for each year.]]>
<![CDATA[PENGARUH RAPAT ARUS ANODIZING TERHADAP NILAI KEKERASAN PADA PLAT ALUMINIUM PADUAN AA SERI 2024-T3 ]]>
<![CDATA[Fajar Nugroho]]>
<![CDATA[ Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 7, No 2 (2015): November ]]>
Publisher : <![CDATA[Institut Teknologi Dirgantara Adisutjipto ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (224.803 KB)
|
DOI: 10.28989/angkasa.v7i2.147
<![CDATA[Aluminum alloy AA 2024-T3 is widely applied in the aircraft industry because it has good mechanical properties such as; light weight, good conductivity and the corrosion resistance. However Aluminium 2024-T3 susceptible to wearing. One method to improve the wear resistance o f AA 2024-T3 is the anodizing process. The aims of this research to study the effect of current density and anodizing time against the hardness of aluminum alloy AA 2024-T3. The process of anodizing was carried out using 10 percent sulfuric acid solution with the current density of 1.5 Ampere per decimeters square, 3.0 Ampere per decimeters square and 4.5 Ampere per decimeters square with immersion times of 30, 40, 50 and 60 minutes. Furthermore, the surface hardness was measured by using the Vickers hardness test method. As the supporting data the composition of the test conducted, testing the microstructure, and vickers hardness test. This study shows that the surface hardness of aluminum alloy AA 2024-T3 is influenced by the current density and anodizing time with varying values. Its shows that higher current density o f the anodizing caused optimal time tends to be short. The longer anodising time it will produce greater layer of aluminum oxide.]]>
