Dosen Website
Universitas Pancasila
Valid XHTML 1.0 Transitional Valid CSS!

Selamat Datang di Website Dosen

Website ini diperuntukkan untuk informasi Dosen di Universitas Pancasila. Bagi dosen yang belum tercantum dapat menghubungi PULAHTA Rektorat

Berita Dari Kami

2013-05-08 08:51:40
Untag Telah Luluskan 35.000 Sarjana
2013-05-08 08:51:25
FKIP Untirta Gelar Gebyar Hardiknas 2013
2013-05-08 08:50:53
Hasil penelitian wajib disertai sosialisasi

Publikasi Penelitian Dosen

Senyawa flavonoid dari fase n-butanol dari ekstrak metanol daun keladi tikus (Typhonium flagelliforme (Lodd) Blume
Abstrak

 

Background: Keladi tikus (Typhonium flagelliforme (Lodd|) Blume) is nutritious plant in treating disesses, one of them as cancer. The chemical compounds contained is flavonoid.

 

Method: Isolation and identification of flavonoid compound from n-buthanol phase in methanol extract keladi tikus leaves has been done with paper chromatography method using n-buthanol-acetic acid-water (4:1:5) and 15% acetic acid as eluent.

 

Results: The results of first identification with color reaction showed that the flavonoid compounds were the flavone, chalcon and auron. Identification using UV-Vis spectra showed two bands absorption at a wavelength maximum of 328 and 271 nm suggested that the isolated was flavone and isofalvone. Identification with shifting reagents added indicated flavone compound with hydroxyl group at C-5 and C-7. Infrared spectra indicatedcharacteristic functional groups of –OH-banded, C=O, C=C aromatic, and C-H aromatic. LC-MS spectrum of the isolated compound showed an [M+H+]+ ion peak at m/z = 255 with retention time of 2.35 minute.

 

Conclusion: Based on the results of the analysis data, it can be concluded that the compound are suspected   5,7-dihydroxyflavone.

 

 

 

Keywords: Typhonium flagelliforme, flavonoid, chromatography, spectrophotometry,  shifting reagents

      

Penulis : YUNAHARA FARIDA , Dr [PDF File] didownload : 11 x

Analisis Perbandingan Material Agregat Terhadap Karakteristik Campuran Asphalt Concrete Wearing Course (AC-WC)
Abstrak

Setiap agregat memiliki karakteristik yang berbeda-beda dari satu wilayah dengan wilayah yang lain, bahkan dari satu lokasi dengan lokasi yang lain dalam wilayah yang sama. Kebanyakan konstruksi jalan di Wilayah Jabodetabek menggunakan material agregat yang bersumber dari tiga quarry di Jawa Barat yaitu Gunung Bitung, Gunung Rumpin, dan Gunung Sudamanik. Penelitian ini bertujuan untuk menganalisis perbandingan karakteristik campuran aspal material agregat dari tiga quarry tersebut melalui nilai karakteristik Marshall pada campuran beton aspal dengan menggunakan Spesifikasi Bina Marga Revisi III (2010). Metode eksperimental digunakan untuk mengetahui material agregat mana yang baik untuk konstruksi beton aspal dengan proporsi campuran agregat yaitu Agregat kasar 38%, Agregat Sedang 17% dan Agregat Halus 45% terhadap total campuran aspal yang telah ditentukan oleh Bina Marga (2010). Pengujian pada campuran aspal dengan material dari tiga quarry tersebut didapat kadar aspal optimum (KAO) masing-masing 6,65%, 5,85%, dan 6,65%. Hasil pengujian Marshall didapat nilai parameter karakteristik campuran untuk campuran aspal dengan material dari Gunung Bitung berupa VIM (4,40%), VMA (17,30%), VFB (74,30%), Stabilitas (1180 Kg), Flow (3,63 mm), MQ (218 kg/mm), untuk campuran aspal dengan material dari Gunung Rumpin berupa VIM (4,14%), VMA (16,53%), VFB (74,80%), Stabilitas (1120 Kg), Flow (3,62 mm), MQ (318 kg/mm) dan untuk campuran aspal dengan material dari Gunung Sudamanik berupa VIM (3,84%), VMA (17,23%), VFB (77,20%), Stabilitas (1253 Kg), Flow (3,22 mm), MQ (389 kg/mm). Hasil karakteristik Marshall pada KAO untuk campuran aspal dengan material dari Gunung Bitung, Gunung Rumpin, dan Gunung Sudamanik telah memenuhi spesifikasi, namun material dari quarry Gunung Sudamanik memiliki karakteristik paling baik diantara ketiganya.

Kata Kunci : Perbandingan Material Agregat, Karakteristik Marshall, KAO, Campuran Aspal Beton, Karakteristik Campuran Aspal

Penulis : NURYANI TINUMBIA, ST., MT [PDF File] didownload : 11 x

Repair of rigid pavement using micro concrete material
Abstrak

Rapid setting materials, especially for concrete repairs made on major arteries such as toll roads which must withstand heavy traffic. Several manufacturers of construction chemicals have been producing various types of rapid setting materials designed for use in repairing such toll roads. However, the existing toll road repair materials have not demonstrated satisfactory performance when applied in the field. This study modified micro concrete materials by adding Polycarboxylate Ether (PCE) and Polypropylene Fiber (PPF) at the time of mixing existing rapid setting materials. It then tested flow tests and setting time at 16, 20, 30, 40, and 60 minutes, as well as compressive strength; and flexural strength tests at the ageing times of 3 hours, 1 day, and 7 days. The concrete micro material was applied directly in the field. The results show that micro concrete material is definitely suitable for toll road repair. The addition of PCE and PPF can increase the flexural strength and modulus of elasticity, meaning that the material is not easily cracked under the repeated strains of heavy traffic loads. Therefore, the use of this micro concrete material has been proven to be viable for future repairs of heavily trafficked toll roads.


Penulis : NURYANI TINUMBIA, ST., MT [PDF File] didownload : 11 x

The characteristics of potential passengers of an Indonesian High-Speed Train (case study: Jakarta-Bandung)
Abstrak

Indonesia is one of the largest economics compared to others in the Association of Southeast Asian Nations (ASEAN), with a population of 240 million in 2016. Most of the country’s economic and service-related activities are located on the island of Java, which is home to 50% of the population. A good and reliable transport infrastructure is therefore critical to ensuring that the movement of both passengers and goods is efficient, fast, reliable, and safe. The Indonesian government has initiated a High-Speed Train (HST) service to connect Jakarta and Surabaya, two big cities in the west and east of Java, respectively, in order to improve mobility and connectivity on Java. The first phase of the HST project is planned to connect Jakarta and Bandung. This study aims to understand the travel characteristics of potential HST passengers, which is important for predicting demand for the HST. The study conducts roadside interviews using a stated preference methodology for several passenger transport modes serving the Jakarta–Bandung route, namely the private car, 10-seater bus (shuttle), coach, and conventional rail. The survey asks respondents about their potential for shifting from their current transit mode to HST. The HST stations will be located in Halim (Jakarta) and Gedebage (Bandung). The study finds that most of the respondents have good economic welfare. A total of 64% of the respondents agreed that they would pay an HST ticket price of between 200,000 and 300,000 rupiahs to save 90 minutes’ travel time. Furthermore, the average amount paid to use a passenger car on the same trip is 200,000 rupiahs, which is slightly higher than the amount paid by a train passenger (Rp. 150,000). This finding demonstrates that the passenger traffic vehicle capitulates the benefit of choosing HST in comparison with the existing transport modes. It should also be noted that there is greater uncertainty with regard to traffic conditions for road traffic in comparison to that faced by railway passengers. In more detail, a sensitivity analysis indicates that passengers traveling from Jakarta could be more easily shifted to the HST than could passengers traveling from Bandung. The fact that those in Jakarta indicate a greater preference to shift to a faster transport mode than those in Bandung indicates that people in Jakarta place a higher value on time. This information is also useful for operational policy, including ticket price differentiation based on travel time period and travel origin–destination.

 

High Speed Train; Shifting mode; Stated preference survey; Ticketing differentiation

Penulis : NURYANI TINUMBIA, ST., MT [PDF File] didownload : 11 x

Sistem Pendukung Keputusan Penentuan Player Role Carry Terbaik pada Game Dota 2 Dengan Metode Simple Additive Weighting (Saw)
Abstrak
Penulis : DESTI FITRIATI, S.KOM., M.KOM [PDF File] didownload : 12 x

<< Prev 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 Next >>