Pencarian Cerdas Dengan Penggunaan Semantic Web

Pada artikel ini akan dibahas studi literatur mengenai teknologi pencarian data dengan menggunakankonsep pencarian cerdas. Perkembangan data di Internet ataupun sumber data elektronik tertentu sangat sulitdiikuti, setiap saat informasi pada suatu web site bisa berubah isinya, baik secara dinamik maupun statik. Salahsatu pendekatan yang dapat digunakan untuk untuk mengatasi masalah di atas adalah dengan melakukanpencarian data melalui mesin pencarian yang berbasiskan pada semantik dari sumber data yang didefinisikandalam ontology. Teknologi Internet yang digunakan dalam ontologi XML (eXtensible Markup Language) danRDF (Resource Description Framework). Keunggulan teknologi XML dan RDF adalah adanya jaminan untukinteroperabilitas antara sumber data yang tersebar di berbagai tempat dengan platform yang sama ataupunberbeda. Hasil dari penelitian literatur ini ditindaklanjuti dengan perancangan dan pembuatan suatu mesinpencarian cerdas yang ditujukan untuk pencarian data yang menunjang mahasiswa dalam pembuatan kerjapraktek atau tugas akhir. Pencarian tersebut akan dapat dilakukan di Internet ataupun suatu sumber datainternal tertentu, seperti misalnya database perpustakaan atau pengelolaan dokumen elektronik lainnya

Jenjang Kesiapan Implementasi Strategi Nirkabel dan Hubungannya pada Pengadaan Mobile Content pada Perusahaan

Despite media hype and pressure from software vendors, corporate IT departments have yet to consider the concept of a truly mobile enterprise. According to Forrester Research, 36 percent of companies surveyed reported that uncertainty about the appropriate mobile device has kept them from implementing a corporate solution. Other concerns, such as network problems, lack of industry, corporate standards, device utility and learning issues also include in the list. However, the widespread adoption of mobile devices and applications has confirmed that the many tools now available are fully up to complete the task. In this article will be discussed an approach to evaluate the mobile strategy readiness of a corporation and how making content mobile

Management of brain abscesses associated with halo fixation

Journal ArticleHalo orthoses are commonly used in the management of a variety of cervical spinal pathological conditions. Although placement of the cranial pins was initially believed to be safe with minimal complications, minor complications related to the cranial pins have the potential to create a setting for formation of cerebral abscesses. The risk of death due to cerebral abscesses has declined in the modern antibiotic era, but cerebral abscesses are associated with long-standing neurological morbidity that should not be considered negligible. Prevention by careful pin placement and hygiene and appropriate early management are crucial to prevent more serious complications. The authors report the case of a patient treated with a halo orthosis after incurring cervical spinal trauma who developed a cerebral abscess as a complication related to the cranial pins of the halo fixation device. They review the literature in an attempt to formulate a standardized treatment algorithm to prevent this disease process and to treat an abscess if it should form

Near- to mid-infrared spectroscopy of the heavily obscured AGN LEDA 1712304 with AKARI/IRC

Context. Although heavily obscured active galactic nuclei (AGNs) have been found by many observational studies, the properties of the surrounding dust are poorly understood. Using AKARI/IRC spectroscopy, we discover a new sample of a heavily obscured AGN in LEDA 1712304 which shows a deep spectral absorption feature due to silicate dust. Aims. We study the infrared (IR) spectral properties of circumnuclear silicate dust in LEDA 1712304. Methods. We perform IR spectral fitting, considering silicate dust properties such as composition, porosity, size and crystallinity. Spectral energy distribution (SED) fitting is also performed to the flux densities in the UV to sub-millimeter range to investigate the global spectral properties. Results. The best-fit model indicates 0.1 $\mu$m-sized porous amorphous olivine (${\rm Mg_{2x}Fe_{2-2x}SiO_4}$; $x=0.4$) with $4\%$ crystalline pyroxene. The optical depth is $\tau_{\rm sil}{\sim}2.3$, while the total IR luminosity and stellar mass are estimated to be $L_{\rm IR}=(5\pm1){\times}10^{10}\,L_{\odot}$ and $M_{\rm star}=(2.7\pm0.8){\times}10^{9}\,M_{\odot}$, respectively. In such low $L_{\rm IR}$ and $M_{\rm star}$ ranges, there are few galaxies which show that large ${\tau}_{\rm sil}$. Conclusions. The silicate dust in the AGN torus of LEDA 1712304 has properties notably similar to those in other AGNs as a whole, but slightly different in the wing shape of the absorption profile. The porosity of the silicate dust suggests dust coagulation or processing in the circumnuclear environments, while the crystallinity suggests that the silicate dust is relatively fresh.Comment: 9 pages, 6 figures, accepted for publication in A&

Aplikasi Mobile Sql Untuk Administrasi Basisdata Postgresql Memanfaatkan Java Servlet

Since a database administrator is not always be in a fix place, we need something that make it possible for the administrator to manage the database anywhere. A Mobile SQL technology is flexible enough for an administrator to do this maintenance job immediately, such as for query operation, and database recovery. Our goal is to develop such application using Java ME and Servlet technology, thus making it runs on every mobile device that has MIDP 2.0, CLDC 1.1, and GPRS enabled device. While on a server computer, it needs web server and a DBMS. For this purpose, an object-oriented DBMS Postgre has been choosen. The main features of this application are: executing SQL queries; creating tables and users; making database backup and recovery; creating and executing SQL procedural language – PL/pgSQL; and sending a log through email. This application will also notify another adminstrator through email for any changes that has been made in the databas

Aplikasi Permainan Capsah Banting dengan Penerapan Algoritma Minimax

Big-two card game, is one of well-known card climbing games which probably originated in coastal China around 1980. Soon it became very popular in Shanghai, Hong Kong, Taiwan and also in the Philippines and Singapore; it has also spread to some western countries. In climbing games, each player in turn must play a higher card (or combination of cards) than the previous player. A player who cannot or does not wish to beat the previous play can pass. This continues for as many rounds as necessary until someone makes a play which no one will beat. That player wins the "trick" and leads to another one. Because players can pass, their cards are not used at an equal rate and some will run out before others. This kind of strategy produces an imperfect information environment. In this article will be reported how the Big Two card game is implemented in computer with the application of Minimax Algorithm, to predict the information, i.e. the value of cards in hand, for the next player who has the turn to minimize the card “value” of the other players

Spitzer/IRS Full Spectral Modeling to Characterize Mineralogical Properties of Silicate Dust in Heavily Obscured AGNs

Mid-infrared silicate dust bands observed in heavily obscured active galactic nuclei (AGNs) include information on the mineralogical properties of silicate dust. We aim to investigate the mineralogical picture of the circumnuclear region of heavily obscured AGNs to reveal obscured AGN activities through the picture. In our previous study, we investigated the properties of silicate dust in heavily obscured AGNs, focusing on the mineralogical composition and the crystallinity with Spitzer/IRS 5.3–12 μm spectra. In this study, we model the full-range Spitzer/IRS 5–30 μm spectra of 98 heavily obscured AGNs using a one-dimensional radiative transfer calculation with four dust species in order to evaluate wider ranges of the properties of silicate dust more reliably. Comparing fitting results between four dust models with different sizes and porosities, 95 out of the 98 galaxies prefer a porous silicate dust model without micron-sized large grains. The pyroxene mass fraction and the crystallinity are overall consistent with—but significantly different from—the previous results for the individual galaxies. The pyroxene-poor composition, small dust size, and high porosity are similar to newly formed dust around mass-loss stars as seen in our Galaxy, which presumably originates from the recent circumnuclear starburst activity. The high crystallinity on average suggests dust processing induced by AGN activities