JURNAL ONLINE MAHASISWA FAKULTAS MATEMATIKA DAN ILMU PENGETAHUAN ALAM UNIVERSITAS RIAU (JOM FMIPA)

Pengembangan Deteksi Online Gas Karbondioksida Menggunakan Co2 Meter Voltcraft Cm-100

"> air pollution is one of environmental contaminations occurred by various factors, outside and inside the room. based on niosh (national institute for occupational safety and health), the safe lev...


Perbandingan Model Pemulusan Winter Dengan Arma(p, Q) Untuk Peramalan Stok Beras Bulog Pekanbaru

this article discusses winter's smoothing and arma(p, q) model through numerical computation. both of these models are used to predict the availability of rice stocks at national logistics agency or b...


Bioarang Limbah Daun Ketapang (Terminalia Catappa L.) sebagai Adsorben Zat Warna Metilen Biru dalam Larutan Berair

terminalia catappa leaves waste is a biomass waste that can be found around campus of riau university. after carbonization at various time at temperature of 300 ˚c, biocharcoal of terminalia catappa l...


Penentuan Kadar Air Ubi Kayu Menggunakan Plat Kapasitor Sejajar

a research has been conducted on determining moisture content of cassava by using parallel plate capacitor . this experiment was carried out by perforning two methods: gravimetric and parallel plate c...


Loading Premi Kotor Tahunan dengan Hukum De Moivre pada Asuransi Jiwa Berjangka

this article discusses the calculation of the loading annual gross premium with de moivre's law at term life insurance. in insurance the loading is obtained by substracting net premium from gross prem...


Penaksir Rasio yang Efisien untuk Variansi Populasi pada Sampling Acak Sederhana Menggunakan Fraksi Pengambilan Sampel

the estimators studied here are three ratio estimators for population variance in simple random sampling without replacement using sampling fraction. this study is a review of article written by tailo...


Cadangan Full Preliminary Term Asuransi Dwiguna Dengan Hukum De Moivre

this paper discusses premium reserve endowment life insurance for years. the reserve is calculated by the method of full preliminary term based on net annual premium, with the first net annual premi...


Pemodelan Tapis Fabry-perot pada Serat Optik dengan Menggunakan Fiber Bragg Grating

fabry-perot filter was successfully developed by a uniform fiber bragg grating in fiber optic. a characterization of bragg grating was analyzed by using computational model with second-order of transf...


Konversi Energi Cahaya Matahari Menjadi Energi Listrik Menggunakan Dioda Silikon 6a10 Mic

a study has been done on solar energy conversion into electrical energy using silicon diode 6a10 mic in order to determine electrical energy of diode by varying number of diode that used with and with...


Premi Asuransi Jiwa Contingent Dengan Hukum De Moivre

this article discusses annual premium of contingent insurance using de moivre law. contingent insurance is those where the payment cash compensation is based on the sequence of death. contingent insur...


Penaksir Rasio-cum-dual Untuk Variansi Populasi Pada Sampling Acak Sederhana

this article discusses three estimators for estimating population variance in simple random sampling i.e. ratio estimator, dual ratio estimator and ratio cum dual estimator which is a review of the ar...


Perluasan Metode Integrasi Hasil-kali Bertipe Trapesium

this article discusses the extension of the pro duct integration rules which is a modification of the generalized euler-maclaurin summation formula using a partition of the trap ezoidal metho d. analy...


Analisa Pengaruh Ketebalan Lempengan Besi (Fe) Terhadap Induksi Magnetik Yang Ditimbulkan Oleh Beberapa Merek Telepon Seluler

nowadays, a cellular telephone is predicted to generate the effect of electromagnetic radiation on the users. in this research, the measurement of magnetic induction generated by three cellular teleph...


Estimasi Permeabilitas Reservoir Dari Data Log Menggunakan Jaringan Syaraf Tiruan Pada Formasi Menggala PT Chevron Pacific Indonesia

a research has been conducted to apply artificial neural network in order to predict permeability of reservoir. method of this research was analytical description. backpropagation neural network used ...


Pemanfaatan Lempung Desa Gema Teraktivasi H2so4 Untuk Peningkatan Mutu Minyak Goreng Curah

clay from gema village, kampar regency, riau province has been applied as an adsorbent. the increase of clay's adsortive capacity can be done by modification. this study was aimed to use the activated...


Isolasi Dna Dan Amplifikasi Pcr Daerah Its Rdna Fungi Endofit Umbi Tanaman Dahlia (Dahlia Variabilis) Lbkurcc69

endophytic fungi lives within healthy plant tissues without causing damage to the host plant. endophytic fungi lbkurcc69 was one of the endophytic fungi that was isolated from the tubers of dahlia pla...


Model Pola Laju Aliran Fluida dengan Luas Penampang yang Berbeda Menggunakan Metode Beda Hingga

the writer has done a research on the model of rate pattern of liquid fluid flow by using flow model that has different pattern. the equation of continuity was used to solve flow rate case, while equa...


Total Fenolik, Flavonoid, Dan Aktivitas Antioksidan Dari Produk Teh Hijau Dan Teh Hitam Tanaman Bangun-bangun (Coleus Amboinicus) Dengan Perlakuan Ett Rumput Paitan

coleus amboinicus is one plant with a good antioxidant content. the concentration of antioxidant from c. amboinicus could be increased by using a treatment fermented plant extract (fpe) containing pai...


Penumbuhan Nanopartikel Titanium Dioksida Pada Substrat Fto Dengan Metode Elektrodeposisi

tio2 nanoparticles have been grown successfully by electrodeposition method on the surface of fluorine tin oxide (fto) substrate. the growth of tio2 nanoparticles was done by using voltage of 2 volt, ...


Analisis Konsentrasi Logam Berat (Cu, Fe, Zn) Konduktivitas Listrik dan Densitas Air Sungai Gaung di Desa Semambu Kuning Kecamatan Gaung Kabupaten Indragiri Hilir

a research has been done on analysis of concentration of heavy metals (cu, fe, zn) electrical conductivity and density of the gaung river water. the method that used in this research was an experiment...


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