Abstrak Usaha Mikro Kecil dan Menengah harus memiliki daya saing supaya tetap bertahan, meski persaingan usaha saat ini semakin ketat. Salah satu aspek untuk meningkatkan daya saing adalah media pemasaran yang tepat yang menggabungkan antara media pemasaran offline (konvensional) dan online. Media pemasaran yang dimiliki oleh Usaha Mikro Kecil Menengah DEDE SATOE sebelumnya masih konvensional yaitu dilakukan secara offline, sehingga pertumbuhan pasarnya juga sangat lambat. Tim Program Pengembangan Produk Unggulan Daerah betujuan membantu DEDE SATOE melengkapi media promosinya dengan media promosi online untuk memperluas pangsa pasar serta mempercepat pertumbuhannya. Tahap yang dilakukan adalah analisis platform e-commerce, pendaftaran, pelatihan dan pendampingan penggunaan platform e-commerce, serta dilakukan pemantauan dan rekapitulasi hasil penjualan melalui platform e-commerce tersebut. Hasil yang diperoleh adalah jumlah transaksi dan jumlah produk yang terjual di 5 platform online yaitu Tokopedia, Bukalapak, Shopee, Lazada dan Blibli mengalami peningkatan signifikan dari periode Juli-Desember 2019 ke Januari-Mei 2020. Di masa datang UMKM harus lebih fokus untuk mengelola penjualan melalui platform e-commerce supaya lebih optimal.Keyword: media pemasaran; platform e-commerce; promosi; Usaha Mikro Kecil dan Menengah

In the response surface methodology (RSM), the designed experiment helps create interfactor orthogonality and interpretable response models for the purpose of process and design optimization. However, along with the development of data-recording technology, observational data have emerged as an alternative to experimental data, and they contain potential information on design/process parameters (as factors) and product characteristics that are useful for RSM analysis. Recent studies in various fields have proposed modifications to the standard RSM procedures to adopt observational data and attain considerable results despite some limitations. This paper aims to explore various methods to incorporate observational data in the RSM through a systematic literature review. More than 400 papers were retrieved from the Scopus database, and 83 were selected and carefully reviewed. To adopt observational data, modifications to the procedures of RSM analysis include the design of the experiment (DoE), response modeling, and design/process optimization. The proposed approaches were then mapped to capture the sequence of the modified RSM analysis. The findings highlight the novelty of observational-data-based RSM (RSM-OD) for generating reproducible results involving the discussion of the treatments for observational data as an alternative to the DoE, the refinement of the RSM model to fit the data, and the adaptation of the optimization technique. Future potential research, such as the improvement of factor orthogonality and RSM model modifications, is also discussed.

In this study, an environmentally friendly extraction method for flavonoid compound from Ixora javanica , as a new raw material candidate for herbal medicine and cosmetics, was developed. The objectives of the present work were to provide recommendations for the optimal extraction conditions and to investigate the effects of any extraction parameters on flavonoid yields from the I. javanica flower. The extraction process was performed using deep eutectic solvent (DES) (choline chloride and propylene glycol at molar ratio of 1 : 1) and the ultrasound-assisted extraction method. Both single-factor and response surface analyses using three-level and three-factor Box Behnken designs were conducted to obtain the optimum flavonoid concentrations. The results showed that the optimum extraction conditions for total flavonoids featured an extraction time of 40 min, 25% water content in DES and a solid-to-liquid ratio of 1 : 25 g ml −1 . An extract obtained under optimum extraction conditions showed higher total flavonoid yields than an ethanolic extract which was used for comparison. Scanning electron microscope images demonstrated that both of the solvents also showed different effects on the outer surface of the I. javanica flower during the extraction process. In summary, our work succeeded in determining the optimum conditions for total flavonoids in the I. javanica flower using a green extraction method.

Due to the different properties of the materials, the fusion welding of dissimilar metals may be difficult. Structural irregularities may form as a result of various phase transformations during welding. Solid-state welding, as opposed to fusion welding, occurs below the melting temperature. As a result of the melting and solidification phenomena that happen in fusion welding, solid-state welding is expected to reduce the potential for phase transformation. This paper describes the use of a rotary friction welding technique to join carbon steel and 304 stainless steel. The purpose of this work is to investigate the characteristics of rotary friction welding (RFW) when joining 304 stainless steel to carbon steels with different carbon contents. Experiments were carried out on the RFW of low- and medium-carbon steels with 304 stainless steel. The investigation was carried out using the Taguchi method of experimental design. The joints’ tensile strengths and microstructures were evaluated. The parameters that had the greatest influence on the tensile strengths of the welding results were identified. The combination of parameters resulting in the greatest tensile strength is also suggested. A microstructural examination of the weldment revealed mechanical mixing and interlocking.