Judul: Strategy to Increase Sales of Fruits and Vegetables through Digital Platform in Bogor City
Abstrak: The COVID-19 pandemic causes a decrease in people's income and an increase in the number of unemployed. Various business sectors experienced negative growth, but the agricultural sector experienced positive growth. This shows that the sale of agricultural products has the potential to increase people's income. The development of digital technology and the existence of a pandemic have increased e-commerce transactions carried out on digital platforms. The wide reach of the internet and the community's ability to use digital technology are the basis for people to transact online. Online transactions can also be carried out on digital platforms for fruit and vegetable commodities. The purpose of this study is to analyze the flow of transactions on digital platforms, analyze the factors that influence the total sales of fruits and vegetables on digital platforms in Bogor City, and formulate strategies to increase income through selling fruits and vegetables on digital platforms in Bogor City. The digital platforms analyzed are Tokopedia, Shopee, and Bukalapak. The method used in this research is observation, panel data regression, and SWOT analysis. Our research shows that the transaction flow on the digital platform involves suppliers, sellers, digital platforms, buyers, couriers, and payment channels. Suppliers are not directly involved in transactions on digital platforms unless the supplier doubles as a seller. The seller-buyer relationship is mediated by a digital platform that secures transactions to provide security and convenience for both sellers and buyers. Payment methods are mediated by payment channels which ensure the buyer pays for the order and the seller receives the payment. The results of panel data regression analysis show that the effect of price, review, rating, store type, and promotion are positive and negative based on the type of product. Factors that have a significant effect on total fruit and vegetable sales through digital platforms in Bogor City are the number of reviews and factors that do not have a significant effect are price and number of promotions. The rating factors and store type give results of varying significance by commodity. The results of the SWOT analysis show that a suitable strategy to be applied to increase income through fruit and vegetable sales in Bogor City is a cooperation from the seller and the producer as the first supplier. The seller is recommended to do cooperation with the dropshipper-pay-later method and accommodate all payment method available in online platform., Pandemi COVID-19 menyebabkan penurunan pendapatan masyarakat dan peningkatan jumlah pengangguran. Berbagai sektor usaha mengalami pertumbuhan negatif, tetapi sektor pertanian mengalami pertumbuhan positif. Hal ini menunjukkan bahwa penjualan produk pertanian berpotensi meningkatkan pendapatan masyarakat. Perkembangan teknologi digital dan adanya pandemi meningkatkan transaksi e-commerce yang dilakukan pada platform digital. Jangkauan internet yang luas dan kemampuan masyarakat dalam menggunakan teknologi digital menjadi dasar bagi masyarakat dalam bertransaksi secara digital. Transaksi secara digital juga dapat dilakukan pada platform digital untuk komoditas buah dan sayur. Tujuan dari penelitian ini adalah menganalisis alur transaksi pada platform digital, menganalisis faktor-faktor yang mempengaruhi total penjualan buah dan sayur pada platform digital di Kota Bogor, dan merumuskan strategi untuk meningkatkan penjualan buah dan sayur pada platform digital
Keyword: e-commerce, dragon fruit, potato, water spinach, farmer

Judul: Online Marketing Strategies to Increase Interest in Buying MSMEs Food and Beverage Consumers in the City of Bogor.
Abstrak: Teknologi informasi dan komunikasi berkembang sangat pesat sehingga mempengaruhi masyarakat dalam mendukung berbagai kegiatan, termasuk kegiatan usaha, baik usaha skala besar maupun usaha mikro, kecil dan menengah (UMKM). Tren belanja online dan digital marketing menjadi peluang bagi produsen dan konsumen untuk saling berkomunikasi secara terbuka dalam menjual atau memilih suatu produk. Aktivitas belanja online dewasa ini seakan menjadi gaya hidup baru bagi para pengguna internet. Pandemi Covid-19 telah mendorong masyarakat termasuk UMKM untuk melakukan transformasi digital, dan para pelaku UMKM dituntut untuk lebih beradaptasi dan berbenah diri untuk memasuki ekosistem digital. Pemasaran online telah memicu minat konsumen untuk melakukan pembelian untuk memenuhi berbagai kebutuhan mereka, termasuk makanan dan minuman. Beberapa faktor diyakini sangat mempengaruhi minat beli konsumen terhadap pemasaran online, antara lain: harga, iklan dan kualitas produk serta keamanan pembayaran. Penelitian ini bertujuan untuk memberikan saran dan rekomendasi strategi pemasaran online kepada UMKM sektor makanan dan minuman untuk lebih meningkatkan minat beli konsumen. Penelitian dilakukan dengan mengidentifikasi perilaku konsumen dan menganalisis pengaruh variabel pemasaran 4P yaitu harga, promosi penjualan dan kualitas produk serta jaminan pembayaran bagi konsumen yang membeli produk makanan dan minuman UMKM secara online. Pengumpulan data dilakukan melalui kuesioner dan wawancara dengan 106 konsumen makanan dan minuman serta 40 UMKM yang berada di Kota Bogor, dengan menggunakan purposive sampling. Metode analisis yang digunakan dalam penelitian ini adalah analisis deskriptif kualitatif dan kuantitatif. Hasil analisis regresi linear berganda dapat disimpulkan: Pertama, secara bersama-sama variabel produk, harga, promosi dan keamanan pembayaran berpengaruh secara signifikan terhadap variabel minat beli konsumen makanan dan minuman. Kedua, secara parsial variabel yang berpengaruh terhadap minat beli secara online antara lain: promosi dan keamanan pembayaran sedangkan untuk harga dan produk tidak terlalu berpengaruh pada minat beli konsumen dalam pemasaran online. Hasil analisis matriks IE diperoleh hasil bahwa pelaku usaha UMKM makanan dan minuman di Kota Bogor berada pada posisi kuadran IV dengan strategi grow and build (tumbuh dan membangun). Strategi pada kuadran IV yang dapat diterapkan adalah strategi intensif yaitu penetrasi pasar, pengembangan pasar, dan pengembangan produk. Hasil analisis SWOT strategi yang paling tepat yang dapat diterapkan adalah S-O (Strength-Opportunity). Hasil analisis QSP diperoleh nilai TAS tertinggi adalah Melakukan inovasi terhadap produk yang dihasilkan atas dasar want to need konsumen dan juga sesuai dengan kemampuan daya beli masyarakat., Information and communication technology is growing rapidly so that it has an impact on the community in supporting various activities, including business activities, both large-scale businesses and micro, small and medium enterprises (MSMEs). The trend of online shopping and digital marketing is an opportunity for producers and consumers to communicate openly with each other in selling or choosing a product. Today's online shopping activities seem to be a new lifestyle for internet users. The Covid-19 pandemic has encouraged society, including MSMEs, to carry out digital transformation, MSMEs business actors are required to be more adaptable and improve themselves to enter the digital ecosystem. Online marketing has attracted consumers' interest in making purchases to meet their various needs, including food and beverages. Several factors are thought to greatly influence consumer buying interest in online marketing, including: price, promotion and product quality
Keyword: 4P, pemasaran online, qspm, swot, umkm

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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