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Published by Institut Sains dan Teknologi AKPRIND

ISSN : 19798415 EISSN : - DOI : -

Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Articles 583 Documents

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JALUR INSTALASI LISTRIK SEBAGAI SISTEM TRANSMISI SINYAL AUDIO Pambudi, Prastyono Eko
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 9 Edisi Khusus Oktober 2004
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Audio frequency represent an vibration voice which can be heard by human being, generally an completed system will contain a transmission with the information which transmission and a receiver yielding a replica or copy of input information released. In communications system which information transmission very relate to the modulation or time change of certain signal sinusoidal named by signal carrier. With a designing to develop the electronics apparatus which not expected complicated of installation of house electrics can be exploited for as media of transmission of signal audio from an peripheral to other peripheral. This matter cause the speaker not need the other, dissimilar transmission cables which long enough so that seen regular and natty.

APLIKASI PENGUBAH DAYA TEGANGAN DC KE AC BERBASIS TRANSFORMATOR NON CT DAN TRANSISTOR MOSFET Pambudi, Prastyono Eko
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 9 Edisi Khusus Oktober 2004
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Distorting of energy of tension DC to AC used to support the social life of society. There by will arise an problems form of electric current from PLN desisted sudden and long time. The problems of course can be disregarded with the installation of power plant byself like generator AC or use the accumulator. Using of transistor energy of type MOSFET also used especially at final of switching showing optimal performance. This matter is showing with the temperature speed which relative lower and ideal performance temperature stability. The result of comparison of output power and efficiency of changer of energy of tension DC to AC with the transformator non-CT indicate that the appliance can only work 90% from maximal appliance ability. This problems because of accumulator use ably small current or standart.

PENGARUH PEMAKAIAN ALAT PENGHEMAT BAHAN BAKAR POWER X TERHADAP PERFORMANCE MOTOR DIESEL -, Sudarsono
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 9 Edisi Khusus Oktober 2004
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

The performance of combustion engine of torak can be seen from torque, break power, , the break mean effective pressure, fuel consumption, specific fuel consumption, AFR and efficiency produced. The research discusses the effect of fuel saving consumption â€œPower Xâ€ to the performance of diesel motor. The research used speed average such as 1600, 1950, 2300, 2650, 3000 Rpm. The result showed that the use of Power X caused torque increased 3,160782 Nm or 2,72%, power increased 0,7613 kW or 2,74%, effective pressure increased 18,3622 kPa or 2.73%. Fuel consumption decreased 0,3572 gr/second or 14,34 %, specific fuel consumption decreased 0,01516 mg/joule or 16,83%. Ratio between air and fuel increased 1,8476 or 14,67%. Thermal efficiency increased 0,05102 or 20,19 %.

STUDI IMPLEMENTASI MACHINE VISION PADA PENGEMBANGAN PALETISASI ROBOTIK Purwanto, Adi
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 9 Edisi Khusus Oktober 2004
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Industrial robot structuris constructed by two different technology, that are mechanical component and electronic device, named mechatronic technology. Itâ€™s rapid progress is according to computer technology progress, and relevant to programmable automation system. Robot is one of the programmable automation implementation, which has multifuction and perfor to do many duty or work. Manufacturing in high competitive environment, indutries must apply felxible production methods to comply with the change of the market demand, product type, rate and production capacity, and just in time an order supply to customer. Flexible Manufacturing System (FMS), is a manufacturesystem that integrate cells in large unit, within industrial robot to serve many machine tools, with all interface connect with central computer. An important concept in manufacturing industry â€“ to support FMS â€“ is â€œjust-in-time productionâ€ (JIT), this concept will be working if service unit for component or material handling has high precission and reability. Another manufacturing system to support the flexible manufacturing are; automated guide vehicle (AGV), and automated storage/retrieval system (AS/RS). This two system can work together with robotic palletization program. Robotic palletization has been progressed to remove an uniform boxes with one size or multi size within material or component suitableto lot size or production batch. Robotic palletization progress has extend until 2D visual sensor. Implementation study need to be improved continously, appropriate to progress of manufacture industry.

PENGARUH SUHU DAN KONSENTRASI ZAT PENGAKTIF NaCl TERHADAP KUALITAS RENDEMEN DAN DAYA SERAP ARANG AKTIF Andaka, Ganjar; Astuti, Tri
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 10 Edisi Khusus September 2005
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Coffee shell contains a lot of cellulose which can be used as a raw material to produces activated carbon. The demand of activated carbon tends to increase because it is used for a great variety of purposes, including the decolorizing of solutions of sugar, industrial chemicals, drugs, and dry-cleaning liquids, water purification, refining of vegetable and animal oils, and in recovery of gold and silver from cyanide ore-leach solutions. This investigation studied effect of tempeture and concentration of sodium chloride (as activator) on yield (rendement) and adsorption potential of activated carbon. In this investigation, coffee shell was dipped into the solution of sodium chloride with certain concentration and then it was carbonized into the muffle furnace. The carbon coke formed was then washed by using hot water and dried into the oven. The dried carbon coke was weighed and then tested the adsorption potential. The results of this investigation show that the yield (rendement) and adsorption potential of activated carbon increase with increasing the concentration of sodium chloride, but above the sodium chloride concentration of 20% the yield and adsorption potential of activated carbon tend to decrase. While the adsorption potential of activated carbon increases with temperature of carbonization, the yield of activated carbon decreases with temperature of carbonization, but above the carbonization tempeature of 600oC the adsorption potential of activated carbon tends to decreases.

PENGAPLIKASIAN MEDIA STREAMING PADA M-LEARNING DENGAN MENGGUNAKAN SELULAR CDMA Santoso, Gatot
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 10 Edisi Khusus September 2005
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Telecommunications technology and internet technology represent a most tech-nology liked in the world. In this technological growth enable new breakthrough in learn-ing by mobile use IT peripheral grasp or referred as mobile learning ( m-learning). M-Le-arning have some excess among others ability learn " every where and any where". Exist-ing Problem the peripheral study of m-learning have limitation and many resource of] plat-form so that needed device capable to guarantee compatible between is assorted plat-form. This scheme aim to as learning media which is not limit room and time.

AUTO DIAL SEBAGAI APLIKASI CALL DIVERT PADA TELEPON RUMAH Santoso, Gatot
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 10 Edisi Khusus September 2005
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Demanding of telecommunication is a basic need as human being to have socia-lization in the neighborhood, and the function of the communication itself is to take and give information between someone to other, the information contains picture, voice, tex and video or combination among them. The way to design and build the auto dial as a call divert application on the phone home started from literature, then obtaining components and continued by designing hardware and software finally ended by trial the device. The device that is utilized to build auto dial as a call divert application on the phone home is a couple of walkie talkie, a te-lephone set, microcontroller and electronic components.

PERANCANGAN DAN PEMBUATAN PLUG IN OBJECT 3DS MAX DENGAN MENGGUNAKAN PEMROGRAMAN MAXSCRIPT Sholeh, Muhammad; Lestari, Uning; Arifuddin, Arham
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 10 Edisi Khusus September 2005
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Software 3dsmax is application based on vector and three dimension. One of e-xamples from this software produces visualization and special effect. Software 3dsmax generally is used by a graphic artist/animator/illustrator and di-gital artist to get better composition, otherwise software 3dsmax giving opportunity to soft-ware user who has syntaxes composition skill as a programmer. In other word, 3dsmax provide software method such as point and click method, and scripting method. A programmer and animator are able produced the same three dimensions works by using 3dsmax software although they use different methods. Programmer does scrip-ting by using mini listener application as script editor whereas an animator use dynamic interface. The scripting method has prominent advantage, besides giving better performan-ce, it is an encapsulation process. Algorithm processes able to design and producing plug in which is can be use on software internal in 3dsmax application. Maxscript is internal programming software which is integrated with 3D Max ap-plication. It has different writing regulations with others programming language.

ANALISA RUGI-RUGI ANTENA PEMANCAR FM ISTAKALISA YOGYAKARTA Priyambodo, Sigit
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 10 Edisi Khusus September 2005
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Everyone basically knows and perceives about the function of antenna. The antenna is a tool or device which has function to receive and transmit signals from a point to another. According to the research of IstaKalisaâ€™s FM Transmitter Radio antenna of Yogyakarta, the writer will give conclusion of research. Loss which affect the working of transmitting radio stations are loss of cord, loss of space damping, and loss of resistance. They make fading on the transmitting power where the fading is in dB unit. Moreover, the position and location of Istakalisa FM transmitter radio station is in the downtown. It does not support to the transmitting system caused by ground conductivity is less than standard and also numbers of high buildings.

ANALISIS POLA RADIASI PEMANCAR ISTA KALISA FM YOGYAKARTA Priyambodo, Sigit
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 10 Edisi Khusus September 2005
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

In respect of development of communication system has grown rapidly, there is no problem with the distance, we can know what is happening in the different places even in other country as near as our places. In line with the advance of development of communication devices now days are closed to simple and practical, such as radio, television, cellular phone, and also internet. The radio communication specially, bigger the power transmitted by the antenna, larger area can be covered by the transmitter, that is phenomenon known as the antenna polarization. Radiation pattern analysis of ISTAKALISA FM Yogyakarta transmitter is aimed to recognize the diffuse of transmitting power and the deviation of Istakalisaâ€™s radio antenna. The pattern and deviation can be formed and calculated at first by having tracking and then the data can be obtained where the parameters are able to be utilized for making a pattern and deviation.

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