Judul: Sistem informasi perpustakaan online berbasis Wireless Application Protocol (WAP)
Abstrak: The development of information system technology based WAP is rapidly growing in line with the development of mobile technology devices. Previously, searching of library collection was done conventionally, by coming directly to the library. In this study, it is a system that can perform the process of searching a book, checking availability of book and online booking of rental reservations is developed. Library's data used in this research is collection of books, researches, theses and dissertations approximately 80.000 collections. The system consists of two subsystems: AdminCP and WAP Perpustakaan. AdminCP is used to manage the database on this system, while the WAP Perpustakaan is used to access library collections on mobile devices. Both systems were developed using programming language PHP with the MySQL database that implements the WAP and WAP 2.0. The reason for using PHP and MySQL is because the two programming languages are more easily explored and developed further.
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Judul: MySQL and XML as Data Storage Format for Wireless Application Protocol based on Content Management System.
Abstrak: Nowdays, the development of Wireless Application Protocol based on Content Management System is still less because CMS usually developed for web desktop. The mayor problem of WAP based on CMS is the web developer difficult to decide the best format of data storage. Therefore, this research is aimed to develop WAP based on CMS and apply it to mobile website of Computer Science Department with a better data storage format. This research built two CMS which had a different data storage format, there are CMS with database MySQL and CMS with XML technology. Further in this research compared the response time or performance of each CMS. The response time included testing of identification time, searching time, and process adding data time. The result from response time showed that CMS with database MySQL had good performance of identification time, searching time, and process adding data time than CMS with XML technology. So information and mobile website data management can be done easier, faster, and more flexible by CMS which use database MySQL as data storage format. Keywords: MySQL, XML, Content Management System, Wireless Application Protocol, response time.
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Judul: Pengaruh Konsentrasi Katalis Methyl Ester Sulfonic Acid Terhadap Sifat Fisikokimia Gliserol Ester Oleat yang Dihasilkan
Abstrak: Glycerol is a by-product from palm olein biodiesel industry which could be value-added to obtain various products. One of the alternatives is to modify glycerol become glycerol ester oleat. Before processing, glycerol was first refined using 5% (v/v) phosphoric acid 85%. The refinery showed that glycerol content was increased from 49% to 80%. Glycerol was then esterified with oleic acid and catalyst methyl ester sulfonic acid (MESA) to obtain glycerol ester. Esterification was conducted at 240°C and nitrogen atmosphere using 200 rpm of mixing for 90 minutes. The best catalyst concentration used in esterification process is at 0,5% and resulting glycerol ester oleat with acid number 48,07 mg KOH/g sample, density of 0,9124 g/cm3, viscosity 68,32 cP (25°C), kinematic viscosity 36 cSt (40°C), flash point 230°C and pour point -15°C.
Keyword: glycerol ester, glycerol