PUBLIKASI PENELITIAN

Berisi daftar Publikasi Penelitian LIPI

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2008 Laboratory Embankment Failure due to Groundwater Seepage Adrin Tohari and Makoto Nishigaki Mitigation of failures of road and railway embankments requires understanding of the failure process. A set of laboratory-scale soil embankments was subjected to instability through three different modes of raising water level to clarify the process of failure initiation. Pore-water pressure responses of model embankments were monitored during the rise of water table and at the initiation of failure. The results of model tests show that failures of model embankments were essentially initiated by the unstable area near the toe of the embankments upon the formation of the seepage area, with shallow noncircular sliding being the dominant failure mode. The… Lihat
2008 ENDOPHRAGMIELLA BOGORIENSIS RIFAI, SPEC. NOV. . New Page 1 MIEN A. RIFAI (Herbarium Bogoriense Puslit Biologi- LIPI, Cibinong Bogor, Indonesia)   Abstract RIFAI, M.A. 2008. Endophragmiella bogoriensis Rifai, spec. nov. (Hyphomycetes). Reinwardtia 12 (4): 275 276. A new species of Endophragmiella is described and illustrated based on a specimen found growing on dead branchlets of Morinda citrifolia in Bogor, West Java, and compared with its closely related congeners thus far known. Lihat
2008 Menghadapi Ancaman Bahaya Geologi di Wilayah Pesisir Wahyu Budi Setyawan Bahaya geologi hakekatnya adalah proses geologi yang mengancam keselamatan harta dan atau jiwa manusia. Keberadaan ancaman bahaya geologi di suatu kawasan berkaitan dengan kondisi geologi di kawasan itu. Manajemen ancaman bahaya geologi dapat dipandang sebagai bagian dari upaya untuk mengurangi dampak negatif apabila bahaya geologi itu benar-benar terjadi (mitigasi bencana) dan merencanakan bagaimana menanggapi bencana geologi bila terjadi (preparadnes). Mitigasi dan preparadnes bencana adalah fase awal dari suatu siklus manajemen bencana. Aktifitas mitigasi bencana sesungguhnya adalah upaya untuk mengeliminasi atau mengurangi kemungkinan terjadinya bencana, atau mengurangi efek dari bencana yang tidak dapat dicegah kejadiannya. Efektifitas suatu akifitas mitigasi bencana ditentukan… Lihat
2008 The Role of Atomic Steps on the Growth of InGaAs/GaAs Quantum Dots Grown by MOVPE Shahrizar Roslan, Zulkafli Othaman, Rosnita Muhammad, Lim Kheng Boo, Didik Aryanto, Amira Saryati Ameruddin. The formation of nanostructures such as quantum dots, quantum wires, and quantum rings require many growth parameters that need to be carefully manipulated to achieve optimal growth quality. In this research, we study the affinity displayed by Indium Gallium Arsenide (InGaAs) quantum dots to form on Gallium Arsenide (GaAs) atomic steps. A series of experiments were carried out on GaAs surfaces with (001) orientation. A buffer layer of GaAs is than grown on the GaAs substrate. InGaAs is than deposited on the GaAs buffer layer which will than form InGaAs quantum dots. This is than capped with another layer of… Lihat
2008 Notes on Macrocheles (Acari: Macrochelidae) associated with scarabaeid dung beetle in Raja Ampat, Waigeo Island, West Papua, Indonesia Sri Hartini Four species of the genus Macrocheles belonging to the family Macrochelidae were reported from Raja Ampat, Waigeo Island, West Papua, including M. timikaensis Hartini & Takaku 2006 and M. dispar (Berlese 1910) as new record to the Island. Two new species and the deutonymph of M. timikaensis Hartini & Takaku 2006 are discribed.Key word: Macrocheles, Macrochelidae, dung beetles, Waigeo Island, Papua Lihat
2008 Identifikasi Bakteri Patogen pada Sistem Karamba Jaring Apung (KJA) di Danau Maninjau, Sumatera Barat Muhammad Badjoeri ABSTRAK Danau Maninjau merupakan salah satu danau di Indonesia yang memiliki banyak fungsi yaitu fungsi sebagai pembangkit listrik tenaga air, budidaya perikanan, pariwisata alam, dan sumber air irigasi untuk pertanian. Hal ini menyebabkan terjadinya tumpang tindih kepentingan di Danau Maninjau. Dilaporkan telah terjadi penurunan kualitas air danau sebagai dampak negatif dari berbagai aktivitas tersebut, dan pada tahun 1997 terjadinya kematian ikan masal yang dipelihara dalam keramba jaring apung (KJA) sampai sejumLah 950 ton. Tujuan dari penelitian ini adalah untuk mengetahui keberadaan bakteri heterotrofik dan bakteri patogen pada sistem KJA di Danau Maninjau pada bulan Mei dan September 2005. Pengambilan sampel… Lihat
2008 Cercosporoid fungi from Thailand II.New species of Cercospora and Passalora Jamjan Meeboon, Iman Hidayat, Chaiwat To-anun and Chiharu Nakashima This report is a part of comprehensive study of cercosporoid fungi in Thailand. In this paper, 15 species are examined and identified. Two species, Cercospora neobougainvilleae and Passalora myricae are new to science. Thirteen other species are reported as new records for Thailand. In detail, 10 species belong to Cercospora, one species belongs to Passalora, and four species belong to Pseudocercospora. Five species of Cercospora are C. apii sensu lato.Keywords: anamorphic fungi, biodiversity, Chiang Mai, dematiaceous hyphomycetes, leaf spot Lihat
2008 Keanekaragaman Jenis Lumut (Musci) Di Lereng Gunung Wani, Suaka Margasatwa Buton Utara, Sulawesi Tenggara F.I. Windadri AbstractDiversity study on mosses at the slope of Wani mountain, North Buton Wild Life Reserve, South-east Sulawesi was conducted. There are 26 species belong to 14 genera and 8 families are recorded. Two genera i.e. Thuidium and Himanthocladium dominated in this area. Sixth species are recorded as new record to Sulawesi i.e. Barbella pendula, Calyptothecium caudatum, Himantocladium plumula, Pinatella ambigua, Taxithelium alare, and Thuidium investe. Lihat
2008 Aplikasi Microcontroller AT89C51 pada Pembayaran Tol dengan Smart Card Rina Ristiana Microcontroller AT89C51 prototype for Tol payment with smart card had been made. the Tol payment with smart card was designed by hardware and software. the hardware was designed five units. they are sensor unit, keypad unit, display unit, card reader unit and print unit. the software was programmed by assembly language, which hex file could transfer in IC microcontroller AT89C51. the made of prototype could use for detection each entered of vehicle in Tol gate. the way were determined vehicle starter, vehicle class and payment account. All parameter were displayed to LCD and layout was printed. Lihat
2008 Biodiversity, Ditribution, and Abundance of the Tropical Angullid Eels in the Indonesian Waters. Sugeha HY, SR. Suharti, S. Wouthuyzen, and OK. Sumadhiharga. In order to understand biodiversity, distribution, and abundance among the tropical anguillid eels in the Indonesian waters, inshore migration mechanism of the juvenile anguillid eel (glass eel) to the estuaries of western,central, and eastern region of Indonesian waters were examined using both morphology and genetic analyses. A total of 9 species/sub species of anguillid eels (Anguilla bicolor bicolor, A. nebulosa nebulosa, A. bicolor pacifica,A. interioris, A. borneensis, A. celebesensis, A. marmorata, A. obscura and A. megastoma) were recognized to recruit at the mouth of 15 rivers through Indonesian archipelago. Species/subspecies diversity and distribution of recruiting juveniles differs in the estuaries… Lihat