Judul: Rancang bangun sistem informasi pengendalian inventori buah dan sayur: Studi kasus di Perusahaan Retail Wal Mart
Abstrak: Tujuan dari penelitian ini adalah merancang bangun sistem informasi pada bagian inventori buah dan sayur pada perusahaan retail Wal*Mart. Untuk itu perlu didefinisikan secara jelas berbagai komponen utama yang menunjang berlangsungnya sistem informasi ini, seperti entitas-entitas yang terlibat (individu atau non individu/peralatan/bagian), jenis data dan informasi yang dibutuhkan, arus data dan informasi, para pengambil keputusan, earn mengakses informasi, serta proses untuk mengubah data menjadi informasi yang berguna. Dalam sistem informasi pengendalian inventori buah dan sayur ini terdapat lima subsistem informasi yang saling berkaitan yakni product sourcing and dealing with vendor, ordering, receiving, selling dan counting inventory and margin. Di dalam masing-masing subsistem ini masih terdapat beberapa sub/bagian yang lebih kecil dan sifatnya lebih mendetil.
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Judul: Rancang Bangun Sistem Informasi Persediaan Barang Warehouse Pada Industri Cold Storage Udang (Studi Kasus Di Pt. Centralpertiwi Bahari, Lampung)
Abstrak: PT. Centralpertiwi Bahari (PT. CPB) is an enterprise on agro-industrial area that produce windu shrimp (Paneus monodon) and white shrimp (Paneus marguiensis) that has been processed and also fresh. The main raw material product that produced is shrimp windu and vannamei (Litopenaeus vannamei). PT. CPB has one division that is Cold-storage & Processing Division, a special division to process shrimp from the plasma shrimp fishpond crop managed by plasma fishpond farmers that integrated execute with Aquaculture Division. This study area is stock information system at Warehouse Department which manages subsidiary material stock (warehouse goods) and production stock as machinery appliances, employees, production equipments and maintaining production tools that used for shrimp processing production on Cold-storage & Processing Division. Its activity set are warehouse goods ordering and outflow system. The main purpose is to develop a system information of data management that is an application program for warehouse goods stock information system at warehouse department. The information system is designed to quickly, precise, and efficient use. An object-oriented approach is applied on the generation of Warehouse Cold Storage Stock Information System (SIPCSD). The SIPCSD development is conducted through four phases includes specification, structure design, and implementation and verification system. The specification system determines the description and requirement of system. The SIPCSD structure design is helped by Computer Aided Software Engineering (CASE) tool Power Designer 6 Process Analysts to make a SIPCSD functional model structure design in Data Flow Diagram (DFD) form and Power Designer 6 Data Architects to design a database structure uses Microsoft Access 2003. SIPCSD Implementation applies Microsoft Visual Basic 6.0 that produces a Graphical User Interface / GUI so the system users can be easier to operate the system (User friendly). SIPCSD verification is conducted by entering data to test the compatibility system with the need of data and report user. The output that produced by SIPCSD is a goods utilizing information data either entrance or exit goods. The entrance and exit goods will annually analyze in the ABC analysis form.
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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