Judul: Analisis Lokasi Keefektifan Lubuk Pakam Sebagai Pusat Pengembangan Kabupaten Deli Serdang Propinsi Sumatera Utara
Abstrak: Tujuan penelitian ini adalah untuk menganalisis lokasi keefektifan Lubuk Pakam sebagai pusat pengembangan wilayah Kabupaten Deli Serdang dengan cara identifikasi pusat pelayanan dan lokasi pelayanan. Dari luas masing-masing Kecamatan dan kepadatan penduduk serta fasilitas prasarana pelayanan yang terdiri dari prasarana pendidikan, prasarana kesehatan, prasarana peribadatan, prasarana angkutan dan prasarana penunjang lainnya, dengan memakai metode Skalogram maka hirarki dari masing-masing Kecamatan dapat pemilikan jenis dan jumlah unitfasilitas prasarana pelayanan tersebut. Untuk menentukan ordo pusat Kecamatan dengan melakukan uji Beda Nyata Terkecil (uji Beda Nyata Jujur) terhadap nilai rata- rata pusat Kecamatan dari pemilikan jumlah unit fasilitas prasarana pelayanan tersebut. Hasil dari metode Skalogram dengan melakukan uji Beda Nyata Terkecil terhadap nilai rata-rata pusat Kecamatan didapat dua tingkat mempunyai ordo dari 33 Kecamatan, dimana 9 (sembilan) Kecamatan mempunyai ordo kesatu dan 24 (dua puluh empat) Kecamatan ordo kedua…dst
Keyword: Regional Growth, Urban Growth, Development Axis, Service center

Judul: Analisis lokasi keefektifan lubuk pakam sebagai pusat pengembangan Kabupaten Deli Serdang Propinsi Sumatera Utara
Abstrak: Tunjuan penelitian ini adalah untuk menganalisa lokasi keefektifan Lubuk Pakam sebagai pusat pengembangan wilayah kabupaten Deli Serdang dengan cara megnidentifikasi pusat pelayanan dan lokasi pelayanan. dst
Keyword: Analisis lokasi, Kab. Deli Serdang

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