Judul: Analisis risiko transportasi jalan tol Jagorawi
Abstrak: Penyelenggaraan sistem transportasi jalan tol bertujuan untuk meningkatkan efisiensi pelayanan jasa distribusi antar wilayah guna menunjang peningkatan pertumbuhan ekonomi. Penyelenggaraan sistem transportasi jaian tol juga menimbulkan dampak negatif berupa kec,1akaan lalu lintas. 0leh karena timbulnya dampak negatif tersebut bersifat tidak pasti, maka untuk menduga timbulnya dampak digunakan metode analisis risiko. Hetode analisis risiko menggunakan pendekatan teori peluang. Penelitian ini bertujuan : (1) menduga besarnya peluang (pz-obability) terjadinya kecelakaan di jalan tol Jagorawi; (2) menentukan faktor-faktor yang mempengaruhi terjadinya kecelakaan di jalan tol Jagorawi dan menentukan model hubungan antara faktor-faktor tersebut; (3) mengidentifikasi profil pengemudi di jalan tol Jagorawi; (4) menduga besarnya kompensasi kerugian kecelakaan di jalan tol Jagorawi; (5) menyusun rencana pengelolaan risiko di jalan tol Jagorawi. Penelitian ini menggunakan lokasi studi di jalan tol Jagorawi, Jawa Barat yaitu jalan tol yang menghubungkan kota Jakarta dengan beberapa tempat di Kabupaten Bogar dan Kotamadya tertutup Bogor ( km Bogor. Pengamatan dibatasi hanya pada jalur antara gerbang THII (km 53,5) sampai pada gerbang 16,0) dan gerbang Ciawi (km 14,0), baik pada jalur arah Jakarta Bogor/Ciawi maupun jalur arah Jakarta. Penelitian dilaksanakan pada bulan sampai dengan Juni 1993. ...
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Judul: Analisis Risiko Operasional Jalan Tol Jagorawi PT Jasa Marga (Persero) Tbk
Abstrak: A large number of vehicles in big cities led to traffic density, until people start switching to use the toll road. Jagorawi is one of the densest toll road, where high flows of traffic cause various risks which related to the operation of toll road. The purpose of this research is to determine the operational risk of Jagorawi toll road and determine the alternative strategies for the smooth operation of toll road. Method of sampling used is non probability sampling with purposive sampling technique. Data analyzed by using cause and effect analysis, Failure Mode Effect Analysis, and Analytical Hierarchy Process. The result indicates that the main risk which has been priority is traffic risk and the highest risk variabel of 21 risk variabels is the delay of infrastructure handling. The right alternative strategy to handle the mentioned risk is by educate the toll road users and inhabitants, develop the instrastructure, invest in quality of human resource, auto gate, and improve the service and safety.
Keyword: Bogor Agricultural University (IPB), operational risk, FMEA, AHP

Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell