Judul: Analysis consumer satisfaction of Djuang coffee shop in Jayapura city
Abstrak: Kopi Djuang merupakan sebuah kedai kopi yang menjual berbagai minuman kopi dan juga minuman non kopi. Tujuan dari penelitian ini adalah untuk menganalisis karakteristik konsumen, menganalisis proses pengambilan keputusan konsumen dan tingkat kepuasan konsumen. Metode yang digunakan dalam penelitian ini adalah analisis deskriptif, Customer Satisfaction Index (CSI), Important Performance Analysis (IPA). Hasil penelitian menunjukkan bahwa proporsi pengunjung Wanita dan pria pada seimbang berada pada rentang usia 17-24 tahun, belum menikah, pelajar/mahasiswa dengan pendapatan rata-rata sebesar kurang dari sama dengan Rp 1 000 000. Berdasarkan analisis CSI tingkat kepuasan konsumen terhadap atribut Kopi Djuang sebesar 76.13. Berdasarkan analisis IPA terdapat atribut yang perlu diperbaiki yaitu harga yang ditawarkan, Kopi Djuang is a coffee shop that sells a variety of coffee drinks as well as noncoffee drinks. The purpose of this study is to analyze consumer characteristics, analyze consumer decision making processes and level of consumer satisfaction. The methods used in this study are descriptive analysis, Customer Satisfaction Index (CSI), Important Performance Analysis (IPA). The results showed that the proportion of female and male visitors in the balanced age range is in range of 17-24 years, unmarried, students with an average income of less than equal to Rp 1 000 000. Based on CSI analysis of consumer satisfaction level to Djuang Coffee attribute of 76.13. Based on IPA analysis there is attributes that need to be improved is prices offered
Keyword: Karakteristik Konsumen, Tingkat Kepuasan Konsumen (CSI), Tingkat Kinerja (IPA), consumer characteristics, Customer Satisfaction Index (CSI), Improtant Performance Analysis (IPA)

Judul: Analysis of the Level of Consumer Satisfaction of Kopikuni in  Medan City
Abstrak: Perkembangan kedai kopi di Kota Medan yang semakin meningkat mengakibatkan persaingan yang ketat antar kedai kopi. Kopikuni merupakan salah satu usaha yang bersaing dalam industri kedai kopi. Cara yang dapat dilakukan Kopikuni agar dapat mempertahankan konsumen yaitu dengan memberikan produk dan pelayanan terbaik untuk konsumen. Tujuan penelitian ini adalah untuk mengidentifikasi karakteristik konsumen, mengidentifikasi proses pengambilan keputusan pembelian konsumen, dan menganalisis tingkat kepuasan konsumen. Jumlah responden pada penelitian ini yaitu 95 responden dine-in dan 30 responden takeaway. Metode pengolahan data yang digunakan yaitu analisis deskriptif, Customer Satisfaction Index (CSI), dan Importance Performance Analysis (IPA). Karakteristik konsumen Kopikuni secara umum merupakan mahasiswa dengan rentang usia 17-25 tahun. Pada proses pengambilan keputusan pembelian konsumen Kopikuni memiliki tujuan untuk berkumpul dengan teman atau keluarga dan untuk membeli kopi. Berdasarkan hasil analisis CSI didapatkan nilai kepuasan konsumen Kopikuni yaitu 83.20 dan 84.10 persen. Berdasarkan analisis IPA, kecepatan penyajian, ketersediaan wifi, harga yang ditawarkan, dan ketersediaan tempat parkir menjadi prioritas utama dalam perbaikan kinerja atribut Kopikuni. Kata kunci: CSI, IPA, kepuasan konsumen, kopikuni, The increasing development of coffee shops in Medan City has resulted in intense competition between coffee shops. Kopikuni is one of the competing businesses in the coffee shop industry. The way that Kopikuni can retain consumers is by providing the best products and services to consumers. The purpose of this research is to identify consumer characteristics, identify the consumer purchasing decision making process, and analyze the level of consumer satisfaction. The number of respondents in this study was 95 dine-in respondents and 30 takeaway respondents. The data processing methods used are descriptive analysis, Customer Satisfaction Index (CSI), and Importance Performance Analysis (IPA). The general characteristics of Kopikuni consumers are students aged 17-25 years. In the purchasing decision making process, Kopikuni consumers have the aim of gathering with friends or family and buying coffee. Based on the results of the CSI analysis, the Kopikuni consumer satisfaction scores were 83.20 and 84.10 percent. Based on IPA analysis, serving speed, wifi availability, prices offered, and parking space availability are the main priorities in improving the performance of Kopikuni attributes. Keywords: CSI, customer satisfaction, IPA, kopikuni
Keyword: CSI, IPA, Kepuasan Konsumen

Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition