Judul: Identifikasi Faktor-Faktor Yang Mempengaruhi Kepuasan Pelanggan Operator Seluler
Abstrak: Dengan semakin ketatnya persaingan antar operator seluler, masalah kepuasan peJanggan hams mendapat perhatian serius oleh peJaku bisnis operator. Parameter - parameter yang digunakan untuk mengevaJuasi kepuasan pelanggan secara umum adalah puas atau tidaknya pelanggan terhadap kualitas jaringan, fltur, Juas jangkauan pelayanan, kualitas penerimaan sinyal di dalam ruangan, lrualitas penerimaan sioyal di iUM ruangan, kecepatan rnelakukan sambungan, kualitas sambungan ke ponsel, kualitas sambungan ke te1epon biasa, kemudahan dalam menerima telepon masuk, kemudahan dalam melakukan te1epon keluar, kejernihan suara, harga, serta informasi pelanggan. Ada 4 operator yang tennasuk dalam penelitian ini, yaitu Telkomsel, Satelindo, Excelcom, dan IM-3.
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Judul: Analysis of Internet Operator Application Customer Satisfaction Based on the Influence of ECRM (Electronic Customer Relationship Management).
Abstrak: Salah satu faktor yang meningkatkan persaingan pada industri telekomunikasi adalah digitalisasi. Alternatif yang menjadi pilihan dalam menjalankan strategi digitalisasi untuk menjaga kepuasan pelanggan yaitu melalui saluran ECRM (Electronic Customer Relationship management) contohnya pada aplikasi provider operator internet. Banyaknya aplikasi provider operator internet yang ada membuat persaingan antar provider menjadi sangat kompetitif. Tujuan penelitian ini adalah menganalisis karakteristik pengguna, mengidentifikasi kepentingan pelanggan berdasarkan ECRM, dan menganalisis perbandingan tingkat kepuasan pelanggan terhadap kinerja ECRM melalui MyTelkomsel, MyXL, MyIM3. Penelitian ini dilakukan dengan 160 responden pengguna aplikasi provider operator internet di Jabodetabek. Metode yang digunakan adalah analisis deskriptif, Importance Performance Analysis (IPA), diagram radar, dan Customer Satisfaction Index (CSI). Hasil dari penelitian ini didapatkan 25 indikator dan 7 dimensi yang dinilai penting oleh pelanggan. Nilai tingkat kepuasan pengguna (CSI) MyTelkomsel sebesar 83,45%, MyXL sebesar 82,80%, dan MyIM3 sebesar 81,59%., One of the factors that increase competition in the telecommunications industry is digitalization. The alternative that is the choice in carrying out a digitalization strategy to maintain customer satisfaction is through the ECRM (Electronic Customer Relationship management) channel, for example in internet operator provider applications. The number of existing internet operator provider applications makes competition between providers very competitive. The purpose of this study was to analyze user characteristics, identify customer interests based on ECRM, and analyze comparisons of customer satisfaction levels on ECRM performance through MyTelkomsel, MyXL, MyIM3. This research was conducted with 160 respondents using the internet operator provider application in Jabodetabek. The method used were descriptive analysis, Importance Performance Analysis (IPA), radar charts, and Customer Satisfaction Index (CSI). The results of this study obtained 25 indicators and 7 dimensions that were considered important by customers. MyTelkomsel's user satisfaction level (CSI) score was 83.45%, MyXL was 82.80%, and MyIM3 was 81.59%.
Keyword: customer satisfaction, ECRM, internet operator provider applications

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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