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"Proyek MRT Jakarta diinisiasi sebagai salah satu solusi atas kemacetan lalu lintas yang terjadi di DKI Jakarta. Sebagai proyek MRT pertama di Indonesia, muncul berbagai kendala yang akhirnya memperlambat kinerja waktu pembangunan. Penelitian yang mengkombinasikan metode wawancara dan survey ini mengidentifikasi lima faktor dominan yang menjadi penyebab utama perbedaan antara jadwal rencana dan aktual proyek MRT Jakarta. Selain itu, studi berikut juga menguraikan sepuluh tindakan korektif berdasarkan kelima faktor tersebut. Sampel dalam penelitian ini adalah para pakar yang terlibat langsung dalam proyek MRT Jakarta. Hasil penelitian diharapkan dapat menjadi landasan evaluasi bagi proyek MRT lainnya di Indonesia, agar tidak mengalami kendala yang serupa.

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The Jakarta MRT project was initiated as one of the solutions to the traffic jam that occurred in Special Region Area of Jakarta. As the first MRT project in Indonesia, various obstacles emerged which eventually slowed down the project schedule. Research that combines interview and survey methods identified five dominant factors that are the main causes of differences between the planned and actual schedule of Jakarta MRT project. In addition, the following study also outlines ten corrective actions based on these five factors. The research sample were expert that directly involved in this project. The results are expected to be a basis for evaluation in other MRT Jakarta in Indonesia so not experienced the similar incidents."

"An efficient Region-Based Image Retrieval (RBIR) system must consider query region determination techniques and target regions in the retrieval process. A query region is a region that must contain a Region of Interest (ROI) or saliency region. A query region determination can be specified manually or automatically. However, manual determination is considered less efficient and tedious for users. The selected query region must determine specific target regions in the image collection to reduce the retrieval time. This study proposes a strategy of query region determination based on the Region Importance Index (RII) value and relative position of the Saliency Region Overlapping Block (SROB) to produce a more efficient RBIR. The entire region is formed by using the mean shift segmentation method. The RII value is calculated based on a percentage of the region area and region distance to the center of the image. Whereas the target regions are determined by considering the relative position of SROB, the performance of the proposed method is tested on a CorelDB dataset. Experimental results show that the proposed method can reduce the Average of Retrieval Time to 0.054 seconds with a 5x5 block size configuration."

"An efficient Region-Based Image Retrieval (RBIR) system must consider query region determination techniques and target regions in the retrieval process. A query region is a region that must contain a Region of Interest (ROI) or saliency region. A query region determination can be specified manually or automatically. However, manual determination is considered less efficient and tedious for users. The selected query region must determine specific target regions in the image collection to reduce the retrieval time. This study proposes a strategy of query region determination based on the Region Importance Index (RII) value and relative position of the Saliency Region Overlapping Block (SROB) to produce a more efficient RBIR. The entire region is formed by using the mean shift segmentation method. The RII value is calculated based on a percentage of the region area and region distance to the center of the image. Whereas the target regions are determined by considering the relative position of SROB, the performance of the proposed method is tested on a CorelDB dataset. Experimental results show that the proposed method can reduce the Average of Retrieval Time to 0.054 seconds with a 5x5 block size configuration."

"Pembangkit lislrik panas bumi berkembang pesat pada saat ini, karena merupakan salah satu sumber energi pengganti selain migas. PT XYZ dalam hal ini juga ikut berperan aktif dalam tahapan engineering, procurement, konstruksi industry energi PLTP ini. Dalam kegiatan konstruksi tersebut PT XYZ mempunyai potensi keuntungan maupun resiko kerugian terhadap kegiatan ini. Pada 5 tahun terakhir ini PT XYZ mengalami kerugian akibat kecelakaan pada tahapan commissioning, meskipun hal ini sudah diasuransikan, antara lain data kecelakaan sebagai berikut : a. Kerusakan Furnish pada saat commissioning di proyek Blue Sky Refenery pada tahun 2005 b. Bocomya Reaklor Urea pada saat commissioning di proyek Kujang I B di tahun 2005. c. Pada proyek PLTP Kamojang- 4 terjadi kerusakan pada separator dan pipe line pada tahapan kegiatan commissioning pada tahnn 2007, Dalarn hal iui resiko perusabaau unruk mendapat potensi kerugian dari kegitan commissioning ini cukup besar, jika dilihat darl pengalaman proyek-proyek sebelumnya tahapan commissioning menyumbang banyak kecelakaan yang menimbulkan potensi kerugian pada peruaahaan, meskipun dalam hal ini proteksi kesehatan dan keselamatan kerja melalui process safety management sudah dilakukan. Oleh karena itu perlu dilakukan evalusi terhadap process safety management yang digunakan sebagai proteksi terhadap hazards/bahaya-bebeya yang ada pada kegiatan commissioning ini. Secara umum tujuan penelitian ini adalah untuk mengetahui seberapa besar tingkat efektivitas proteksi K3 yang dilakukan untuk menoegah kerugian perusahaan pada tahapan kegiatan commissioning pipa sags pada pembangunan PLTP.

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Geothermal power energy rapidly grow in this time because as one of energy source substitution besides oil and the reserve gas is progressively attenuate. PT XYZ in this case also contribute is active in industrial construction of this geothermal power energy. In the activity of construction, PT XYZ have loss risk and also advantage potency to this activity. At 5 the last year PT XYZ experience loss of accident effect at step commissioning, though this thing have been insured, for example accident data as follows : 1. Damage of Funish at commissioning in project of Blue Sky Refenery in 2005 th 2. Damage of area Reactor at commissioning in project ujang I B in 2005 th 3. At project of PLTP Kamojang - 4 happened damage at separator and pipe line atstep of commissioning activities in the year 2007th. Therefore require to be done by evaluation to protection system process safety management (K3) which applied as protection to Hazards on the this commissioning activity. In general purpose of research is to how know big level of protection effectiveness process safety management (K3) which done to prevent loss of company at phases of pipe sags commissioning activities at geothermal power energy development."