Samian Samian
Universitas Airlangga Surabaya

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Hubungan antara Peranan Manajer dengan Kepuasan Kerja pada Karyawan PT. Perkebunan Nusantara X (PERSERO) di PG. Toelangan Sidoarjo Jayatri, Arini Mardi; Samian, Samian
Jurnal Insan Media Psikologi Vol 12, No 1 (2010): Jurnal Insan Media Psikologi
Publisher : Fakultas Psikologi Unair

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Abstract

The purpose of this study was to explore the association between managers role and job satisfaction among 136 (N) employees of PT. Perkebunan Nusantara X (PERSERO) PG.Toelangan-Sidoarjo. The JobSatisfaction Survey (JSS) Scale was used to measured the level of job satisfaction, and managers role was obtained via a questionnaire developed by the researchers. Data analysis procedures included Pearson r, and simple regression. Results indicated a significant relationships (p=0.000, p<0.05) between managers role and job satisfaction, with r = 0.780 and Y = 50.666 + 0.499X.
Performance of Multimode-Fiber Coupler with Different Coupler Parameter for Displacement Sensor Samian, Samian
Jurnal ILMU DASAR Vol 11, No 2 (2010)
Publisher : Fakultas MIPA Universitas Jember

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Abstract

Three multimode-fiber couplers with different coupling ratios, excess losses and directivities are used to sense adisplacement. The fiber coupler is handmade from 1 mm diameter plastic optical fiber. The light source is 632.8nm He-Ne Laser. OPT 101 (Burr Brown) detector is used to detect the change in power output due to theobject’s displacement. The opted displacement’s resolution is 5 μm. The experiment shows that multimode-ficecoupler with 0.25 ratio, 1.37 dB excess loss, and 25 dB directivity gives the highest performance, which has 4mm dynamic range, 1 mm linear range, and 55.4 μW/mm sensitivity. Higher performance can be reached ifmultimode-fiber coupler with the highest coupling ratio and the lowest excess loss is opted.Keywords: Multimode fiber coupler, displacement sensor, coupler parameter
KEMANDIRIAN BELAJAR DITINJAU DARI KREATIVITAS BELAJAR DAN MOTIVASI BELAJAR MAHASISWA Isnawati, Nina; Samian, Samian
Jurnal Pendidikan Ilmu Sosial Vol 25, No 1: JUNI 2015
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The research aims are to know: 1) the influence of learning creativity towards studyindependence; 2) the influence of study motivation towards study independence, 3)the influence of learning creativity and study motivation towards studyindependence simultaneously. The research method used is descriptive quantitative.The population is all of students of UMS in 2010/11 period around 190, sample is123 by using simple random sampling technique. Data collecting used is questionnaire that wastested and fulfilled validity and reliability requirement. Analysis data used doubled linierregression Y = 10,163 + 0,452X1 + 0,349X2, based on analysis and discussion about students ofUMS in 2010 period can be concluded that: 1) learning creativity has positive influence towardsstudy independence, with significance value 0,000<0,05. (2) study motivation has positive influencetowards study independence, with significance value 0,000<0,05. (3) learning creativity and studymotivation towards study independence simultaneously have positive influence towards studyindependence, with significance value 0,000<0,05. (4) The contribution of R2 is 0.376, it means37,6% students study independence was influenced by learning creativity and study motivationvariables, the rest is 62,4% was influenced by other factors that did not follow in this research.
Fabrikasi Directional Coupler Serat Optik Multimode Samian, Samian; Pramono, Yono Hadi; Rohedi, Ali Yunus; Yudoyono, Gatut
Jurnal Fisika dan Aplikasinya Vol 4, No 2 (2008)
Publisher : Jurnal Fisika dan Aplikasinya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (131.568 KB) | DOI: 10.12962/j24604682.v4i2.955

Abstract

Telah dilakukan fabrikasi directional coupler simetri 2x2 dari bahan serat optik plastik (POF) step-index multimode dengan metode fused. Bahan untuk fabrikasi directional coupler adalah serat optik plastik multimode tipe FD-620-10 dengan diameter serat 1 mm. Fabrikasi dilakukan dengan cara memoles sepasang serat optik dengan panjang daerah interaksi kopling bervariasi dan lebar gap konstan, pasangan serat optik yang telah dipoles kemudian digabungkan. Fabrikasi menghasilkan empat buah directional coupler, salah satu directional coupler hasil fabrikasi parameternya memenuhi standar fabrikasi yaitu nilai ratio coupling 0,245 dengan toleransi dibawah 10% serta nilai excess loss lebih kecil dari 2 dB.
Aplikasi Directional Coupler Serat Optik sebagai Sensor Pergeseran Pramono, Yono Hadi; Rohedi, Ali Yunus; samian, samian
Jurnal Fisika dan Aplikasinya Vol 4, No 2 (2008)
Publisher : Jurnal Fisika dan Aplikasinya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.712 KB) | DOI: 10.12962/j24604682.v4i2.956

Abstract

Telah dilakukan eksperimen directional coupler serat optik multimode hasil fabrikasi sendiri sebagai sensor pergeseran mikro berbasis teknik modulasi intensitas dengan teknik yang sederhana. Analisis performansi sensor menggunakan pendekatan berkas Gaussian. Eksperimen menggunakan sumber laser He-Ne (632,8 nm; 1 mW), detektor OPT-101 (Burr Brown) untuk mendeteksi perubahan daya optik akibat pergeseran obyek (cermin front silvered) serta mikrovoltmeter (Leybold) untuk membaca tegangan keluaran detektor. Pergeseran obyek dilakukan dengan resolusi 5 μm. Hasil eksperimen menunjukkan performansi sensor yang cukup baik, mampu mendeteksi pergeseran obyek sampai rentang 3,1 mm, daerah kerja sensor 0 - 1,3 mm dan sensitivitas sebesar 19,3 μW/mm.
Aplikasi Multimode Fiber Coupler sebagai Sensor Temperatur Samian, Samian; Yudoyono, Gatut
Jurnal Fisika dan Aplikasinya Vol 6, No 1 (2010)
Publisher : Jurnal Fisika dan Aplikasinya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (410.315 KB) | DOI: 10.12962/j24604682.v6i1.912

Abstract

Telah dilakukan penelitian untuk mendeteksi variasi temperatur menggunakan multimode fiber coupler sebagai sensor dan logam aluminium sebagai probe. Penelitian sebelumnya telah menunjukkan bahwa multimode fiber coupler dapat digunakan sebagai sensor pergeseran, dan hasil inilah yang digunakan untuk konstruksi pergeseran salah satu ujung batang logam yang telah mengalami perubahan temperatur. Sebuah cermin di tempatkan pada salah satu ujung batang logam yang bebas dan dapat bergerak selama proses pemuaian termal. Hasil eksperimen menunjukkan bahwa perubahan temperatur 2C pada batang logam mampu terdeteksi. Logam aluminium mempunyai hubungan linier terhadap tegangan detektor dalam rentang temperatur 26C - 361C, dengan sensitivitas 9,9 mV/C yang mampu mendeteksi perubahan temperatur 0,1C.
Sensor Ketinggian Air menggunakan Multimode Fiber Coupler Samian, Samian; Supadi, Supadi
Jurnal Fisika dan Aplikasinya Vol 7, No 2 (2011)
Publisher : Jurnal Fisika dan Aplikasinya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (190.703 KB) | DOI: 10.12962/j24604682.v7i2.903

Abstract

Deteksi ketinggian air secara kontinyu telah berhasil dilakukan berbasis pada sensor pergeseran menggunakan multimode fiber coupler dengan membran dari bahan polyisoprene sebagai reflektor. Prinsip kerja sensor menggunakan perubahan tekanan hidrostatis akibat perubahan ketinggian air dalam tangki untuk menggeser membran yang diberi bahan reflektor. Pergeseran membran menyebabkan perubahan daya optis berkas balik cahaya pantulan dari membran yang masuk ke kanal sensing fiber coupler. Perubahan daya optis berkas balik terkopel ke kanal deteksi fiber coupler dan terbaca dalam bentuk tegangan keluaran detektor optis. Resolusi ketinggian air yang mempu dideteksi sebesar 1 mm dengan rentang ketinggian 45 mm - 320 mm. Daerah linier dan sensitivias sensor yang dihasilkan masing-masing sebesar 10,4 μV/mm dan 130 mm - 320 mm.
Performance of Multimode-Fiber Coupler with Different Coupler Parameter for Displacement Sensor Samian, Samian
Jurnal ILMU DASAR Vol 11 No 2 (2010)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.151 KB)

Abstract

Three multimode-fiber couplers with different coupling ratios, excess losses and directivities are used to sense adisplacement. The fiber coupler is handmade from 1 mm diameter plastic optical fiber. The light source is 632.8nm He-Ne Laser. OPT 101 (Burr Brown) detector is used to detect the change in power output due to theobject’s displacement. The opted displacement’s resolution is 5 μm. The experiment shows that multimode-ficecoupler with 0.25 ratio, 1.37 dB excess loss, and 25 dB directivity gives the highest performance, which has 4mm dynamic range, 1 mm linear range, and 55.4 μW/mm sensitivity. Higher performance can be reached ifmultimode-fiber coupler with the highest coupling ratio and the lowest excess loss is opted.
KEMANDIRIAN BELAJAR DITINJAU DARI KREATIVITAS BELAJAR DAN MOTIVASI BELAJAR MAHASISWA Isnawati, Nina; Samian, Samian
Jurnal Pendidikan Ilmu Sosial Vol 25, No 1 (2015): JURNAL PENDIDIKAN DAN ILMU SOSIAL
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (658.515 KB)

Abstract

The research aims are to know: 1) the influence of learning creativity towards studyindependence; 2) the influence of study motivation towards study independence, 3)the influence of learning creativity and study motivation towards studyindependence simultaneously. The research method used is descriptive quantitative.The population is all of students of UMS in 2010/11 period around 190, sample is123 by using simple random sampling technique. Data collecting used is questionnaire that wastested and fulfilled validity and reliability requirement. Analysis data used doubled linierregression Y = 10,163 + 0,452X1 + 0,349X2, based on analysis and discussion about students ofUMS in 2010 period can be concluded that: 1) learning creativity has positive influence towardsstudy independence, with significance value 0,000<0,05. (2) study motivation has positive influencetowards study independence, with significance value 0,000<0,05. (3) learning creativity and studymotivation towards study independence simultaneously have positive influence towards studyindependence, with significance value 0,000<0,05. (4) The contribution of R2 is 0.376, it means37,6% students study independence was influenced by learning creativity and study motivationvariables, the rest is 62,4% was influenced by other factors that did not follow in this research.
SIMULASI POLA MEDAN ELEKTROMAGNET PADA PANDU GELOMBANG PERSEGI DENGAN DUA PARAMETER Sujito, Sujito; Lokollo, Richard R; Supadi, Supadi; Samian, Samian; P, Era Budi
Jurnal Neutrino Vol 8, No 1. Oktober (2015): JURNAL NEUTRINO
Publisher : Department of Physics, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/neu.v0i0.3113

Abstract

Telah dilakukan visualisasi pola medan elektromagnetik 4 moda terendah pada pandu gelombang persegi untuk moda berorde tinggi, yaitu moda TE00, TE01, TE10 dan TE11. Konstanta propagasi sebagai salah satu parameter yang digunakan untuk mengkarakter moda gelombang optik diformulasikan secara semi analitik. Hal ini dikarenakan formulasi konstanta propagasi efektif moda gelombang tidak dapat diturunkan secara eksak. Beberapa bagian dipecahkan menggunakan penyelesaian analitik, sedangkan beberapa bagian diselesaikan melalui analisa numerik secara komputasional dengan menggunakan perangkat lunak Matlab. Analisis karakter pola medan dilakukan dengan menggunakan prinsip Variasional fungsi trial polinom Hypergeometri, sedangkan profil indeks bias berbentuk secant hyperbolik. Analisis menunjukkan bahwa penggunaan berbagai orde moda menunjukkan kesesuaian terhadap metode indeks efektif dan mampu mendeskripsikan pola medan.