Implementasi dan Evaluasi Kinerja Orthogonal Frequency Division Multiplexing (OFDM) Menggunakan WARP

Salah satu permasalahan dalam perkembangan teknologi telekomunikasi yaitu bagaimana mencapai data rate yang besar namun dengan bandwidth yang tidak lebih besar dari bandwidth koheren kanal untuk menghindari terjadinya Inter-Symbol Interference (ISI). Salah satu solusi yang ditawarkan yaitu transmisi multi-carrier. Contoh transmisi multicarrier yaitu Orthogonal Frequency Division Multiplexing (OFDM) dimana subcarrier-subcarrier dapat saling tegak lurus satu sama lain sehingga bendwidth yang dibutuhkan menjadi lebih efisien jika dibandingkan dengan multicarrier konvensional seperti FDM. SDR merupakan sistem pemancar dan penerima yang menggunakan pemrosesan sinyal digital untuk coding, decoding, modulasi dan demodulasi data. Modul WARP tersebut digunakan sebagai model pemancar dan penerima pada pengukuran kualitas unjuk kerja sistem OFDM dengan barbagai kondisi. Hasil dari implementasi dan pengukuran menunjukkan bahwa nilai BER tidak selalu berpengaruh terhadap Perubahan jarak karena ketika jarak semakin jauh tidak menjamin nilai BER semakin besar. Sementara dalam hal obstacle, nilai BER sangat berpengaruh dimana nilainya akan lebih baik saat tidak adanya obstacle. Seperti saat daya pancar sebesar -26.125 dBm nilai BER saat Line Of Sight (LOS) sudah 0 sementara Non Line of Sight (NLOS) bernilai 9.3x10-6. Untuk lingkungan pengukuran, lingkungan indoor menghasilkan kualitas sistem yang paling baik dibandingkan dengan lingkungan lainnya

Situasi Vektor Malaria Di Desa Buayan Dan Ayah Kabupaten Kebumen Jawa Tengah

S. Some Anopheles species were found in Buayan village. There were An. aconitus, An. annularis, An. barbirostris, An. kochi, An. sundaicus, An. subpictus, An. tesselatus and An. vagus. The result of ovaries surgery in Buayan village showed that An. aconitus, and An. vagus were suspiciously to be malaria vector. Furthermore, An. aconitus, An. barbiros­tris, An. kochi, An. sundaicus, An. subpictus, An. tesselatus, and An. vagus were also found in Ayah village. As a result of ovaries surgery An. sundaicus and An. vagus were suspicious­ly to be malaria vector in this area. An. vagus habitats were found on the rice field and some gutters, whether An. sundaicus were found on the lagoon and surrounding gutters near the beach

Fauna Anopheles Di Desa Buayan Dan Ayah Di Kabupaten Kebumen Jawa Tengah

Telah dilakukan pengamatan vektor malaria dengan hasil sebagai berikut: di Buayan, jenis nyamuk Anopheles yang ditemukan adalah An. aconitus, An. annularis, An. barbirostris, An. kochi, An. sundaicus, An. subpictus, An.tesselatus dan An. vagus. Berdasarkan hasil pembedahan ovarium ditunjukkan bahwa nyamuk yang diduga mampu menjadi vektor malaria di Buayan adalah Anopheles aconitus dan An. Vagus. Di Ayah, jenis nyamuk Anopheles yang ditemukan adalah An. aconitus, An. barbirostris, An. kochi, An. sundaicus, An.subpictus, An. Tesselatus, An. Vagus dan Anopheles yang mampu menjadi vektor sesuai hasil pembedahan ovarium adalah Anopheles sundaicus dan Anopheles vagus. Habitat nyamuk Anopheles vagus ditemukan pada sawah dan parit, sedangkan Anopheles sundaicus adalah lagun dan parit-parit yang dekat pantai

Pengendalian Nyamuk Aedes Aegypti dan Culex Quinquefasciatus dengan Penyemprotan Sistem Pengasapan (Thermal Fogging) Menggunakan Insektisida Laden 500ec

A trial of Laden 500 EC (dosage of 250, 500, 750 and 1000 ml/ha) was carried out using thermal fogging against DHF vector Aedes aegypti and filariasis vector Culex quinquefasciatus. Fogging was conducted in the morning arround human habitation of Salatiga Municipility in 2007. Air bioassay test showed that laden 500 EC dosages 750 and 1000 ml/ha were effective to control Ae. Aegypti and Cx. Quinquefasciatus over 90% mortalit

Perbandingan Kematian Nyamuk Aedes Aegypti Pada Penyemprotan Aerosystem Menggunakan Bifenthrin Dengan Sistem Thermal Fogging Menggunakan Malathion

A small scale trial of Bifenthrin dosage 0,5 ml /m3 against DHF vector Ae. aegypti was conducted in the morning using Aerosystem in residential of Grobogan municipality in 2000. The air Bioassay test for insecticides tested showed that spraying at a distance of 0-5 meters caused 100% mortality of Ae. aegypti, after 24 hours of the treatment in the laboratory

Perbandingan Kematian Nyamuk Aedes Aegypti Dan Culex Quinquefasciatus Pada Pengasapan (Thermal Fogging) Dan Pengkabutan (Ulv) Dengan Insektisida Gokilaht-s 50 Ec (D-d-trans-cyphenothrin 50 G/l)

A trial of Gokilaht-S 50 EC (dosages 125, 250. 500 dan 625 ml/liter solar) was using Ultra Low Volume and thermal fog against DHF vector Aedes aegypti and vector Filariasis Cx quinquefasciatus has been carried out. Fogging was conducted in the morning in human habitation of Salatiga municipality 2008. Air bioassay test showed that over 90% mortality for Aedes aegypti and Culex quinquefasciatus were obtained on Gokilaht-S 50 EC dosages 500 mllliter and 625 ml/liter solar was using Ultra Low Volume and thermal fog. Key Word : Gokilaht - S 50 EC , Ultra Low Volume, thermal fogging, Aedes aegypti, Culex quinquefasciatu

Pengaruh Penggunaan Glikol Pada Insektisida Aqua-k-othrine 20 Ew® (B.a. Deltamethrin 21.9 G/l) Terhadap Nyamuk Aedes Aegypti Dan Culex Quinquefasciatus Dengan Metoda Pengasapan(thermal Fogging)

ENGLISHK-OTHRINE 20 EW® insecticides were tested in 100 and 200 ml/ha with the application of fumigation using pure water as solvent and mixture of water and glycol. It was equally effective to kill Ae. aegypti mosquitoes indoor and outdoor with the mortality of 100%. Similarly, the insecticide effectively provides mortality of 90.0 – 94.8% to the Cx. quinquefasciatus mosquitoes, indoor and outdoor. The effect of fumigation of K-Othrine 20 EW® insecticide using either pure or mixed solvent of water (9.5 l water + 0.5 l glycol) showed no difference to the mortality of mosquitoes, but glycol solution produce the fog, so the particle could be spread out to all directions.INDONESIAPengujian insektisida K-OTHRINE 20 EW® dosis 100 dan 200 ml/ha telah dilakukan dengan aplikasi pengasapan menggunakan pelarut air dan campuran air dengan glikol. Hasil menunjukkan keduanya sama-sama efektif membunuh nyamuk Aedes aegypti di dalam dan luar rumah (kematian 100%); terhadap Culex quinquefasciatus di dalam dan luar rumah efektif memberikan kematian 90.0 – 90.8%. Pengaruh aplikasi pengasapan insektisida K-Othrine 20 EW® baik menggunakan pelarut air maupun campuran (9.5 l air + 0.5 l glikol) menunjukkan tidak berbeda terhadap kematian nyamuk uji, perbedaan pada larutan yang ditambah glikol dapat mengeluarkan kabut sehingga partikel yang dikeluarkan dapat tersebar ke semua arah

Pengaruh Pengasapan (Thermal Fogging) Insektisida Piretroid (Malation 95%) Terhadap Nyamuk Aedes Aegypti Dan Culex Quinquefasciatus Di Pemukiman

S. The evaluation of piretroid insecticide (active ingredient Malation 95%) was con­ducted in Sub district Tengarang, Semarang Segency, Central Java Province. The insecti­cide was applied using thermal fogging method for dosages of 125, 250, 375, 500 and 625 ml/ha (diluted in diesel to 10 litters). The evaluation of the efficacy was conducted against two mosquito species, Aedes aegypti (the main dengue haemorrhagic fever) and Culex quinquefasciatus (the urban lymphatic fil­ariasis vector). Result of the evaluation was revealed that dosages of 500 and 625 ml/ha were effective against both tested mosquito species indoor and outdoor

First Record of Ambrosia Beetle (Euplatypus Paralellus Fabricius) Infestation on Sonokembang (Pterocarpus Indicus Willd.) From Malang Indonesia

Sonokembang (Pterocarpus indicus Willd.) is native of Asia trees, and commonly planted in large numbers as shade trees along roads in Malang. Research was conducted on 76 roads to identify damage intensity of dying trees on sonokembang and clarify the causal agent of dying trees in Malang from May to December 2012. Seven variables was also investigated such as characteristic of tree`s damage, distribution of holes based on sunlight exposure, vertical position of stem, and stem diameter, morphological characteristic of beetle, the intensity of dying trees, and distribution of dying trees. Results showed that there were unique damaging characteristic such as dying and then fallen leaves, holes on the stem and branches, and frass production. Euplatypus parallelus Fabricius was identified as a causal agent of dying sonokembang. There were some indications shown such as beetles preferred to attack stem side with much sunlight exposure, upper stem and medium or bigger size of stem diameter. From 3,206 trees on 76 roads, 69.7% were found dying trees. In dry and rainy season, the intensity of dying trees increased from 8.14 to 9.76% and from 10.26 to 10.79%, respectively