Judul: Business Model Canvas Approuch to Identify Lyn Coffee's Business Model in Medan City
Abstrak: Lyn Coffee merupakan kedai kopi yang menjalankan kegiatan bisnis B2B dan B2C yang berlokasi di Kota Medan. Permasalahan muncul dengan penurunan penjualan diakibatkan adanya PPKM. Meskipun penjualan Lyn Coffee relatif menurun dibandingkan sebelum adanya pandemi Covid-19, Lyn Coffee tetap bertahan dan cenderung mengalami peningkatan di akhir pandemi. Penelitian ini dilakukan untuk mendeskripsikan dan memetakan model bisnis Lyn Coffee. Penelitian ini bersifat kualitatif berupa observasi, wawancara, dan dokumentasi. Metode yang digunakan yaitu Business Model Canvas (BMC). Pada penelitian ini diperoleh customer segment yaitu mahasiswa dan kedai kopi sebagai target utama dengan value propositions yaitu menjaga kesegaran produk, meningkatkan kinerja pada roasted coffee beans dan sajian kopi dengan rasa buah pada suasana yang nyaman dengan kemudahan transaksi, mendapatkan produk kopi Sumatera Utara dengan harga terjangkau yang memiliki dua channel berupa saluran langsung dan tidak langsung. Lyn Coffee menjalin hubungan baik dengan konsumen dan kedai kopi lainnya. Revenue streams berasal dari penjualan B2B sebesar 60% dan B2C 40%. Memiliki empat sumberdaya utama. Key Activities Lyn Coffee yaitu pemilihan bahan baku utama yang berkualitas dan bermitra dengan pemasok bahan baku, kemasan produk, dompet digital, jasa pengiriman online, dan Bank Sumut. Biaya terbesar yaitu gaji karyawan sebesar 25% dan terkecil yaitu biaya pemasaran sebesar 3%., Lyn Coffee is a coffee shop that runs B2B and B2C business activities located in Medan City. Problems arise with the decline in sales due to PPKM. Although Lyn Coffee's sales have declined relatively compared to before the Covid-19 pandemic, Lyn Coffee has survived and tends to increase at the end of the pandemic. This research was conducted to describe and map Lyn Coffee's business model. This research is qualitative in the form of observation, interviews, and documentation. The method used is the Business Model Canvas (BMC). In this study, the customer segment was obtained, namely students and coffee shops as the main targets with value propositions, namely maintaining product freshness, improving performance in roasted coffee beans and serving coffee with fruit flavors in a comfortable atmosphere with ease of transaction, getting North Sumatra coffee products at affordable prices which have two channels in the form of direct and indirect channels. Lyn Coffee establishes good relationships with consumers and other coffee shops. Revenue streams come from B2B sales of 60% and B2C of 40%. It has four main resources. Lyn Coffee's Key Activities are the selection of quality main raw materials and partnering with suppliers of raw materials, product packaging, digital wallets, online delivery services, and Bank Sumut. The biggest cost is employee salary at 25% and the smallest is marketing cost at 3%.
Keyword: B2B, B2C, BMC, kedai kopi, model bisnis

Judul: Strategi Pengembangan Usaha Kedai Posisi Kopi Dengan Pendekatan Business Model Canvas (BMC).
Abstrak: Meningkatnya industri kedai kopi menjadi salah satu indikasi bahwa adanya pertumbuhan ekonomi dan meningkatnya konsumsi kopi di Indonesia. Posisi Kopi merupakan salah satu kedai kopi yang berada di Jakarta Timur. Penelitian ini bertujuan untuk memetakan model bisnis saat ini, merumuskan strategi alternatif dan membuat BMC baru untuk pengembangan usaha Posisi Kopi. Penelitian ini menggunakan metode analisis deskriptif dengan pendekatan kanvas bisnis model dan menggunakan metode purposive sampling. Berdasarkan dari sembilan elemen di dalam business model canvas awal, dibentuk strategi alternatif sebagai strategi utama dalam merumuskan BMC Posisi Kopi yang baru. Hasil dari penelitian adalah strategi alternatif yang dapat dikembangkan Posisi Kopi yaitu fokus pada pembuatan jaringan antar kedai kopi di sekitar Jakarta Timur, saluran pemasaran yang lebih terfokus, dan pembuatan standar layanan sesuai dengan protokol kesehatan. Simpulan dan saran adalah diperlukan strategi alternatif yang mampu mengintegrasikan seluruh elemen BMC agar usaha bisa terus berkembang dan bertahan pada kondisi Covid-19 ini.
Keyword: strategi alternatif, kedai kopi, Covid-19

Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
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