Pengaruh Konten Pemasaran Dan Electronic Word Of Mouth Terhadap Keputusan Pembelian Pada Marketplace Shoppe Produk Skintific

Penelitian ini bertujuan untuk menguji dan menganalisis pengaruh Konten Pemasaran dan Electronic Word of Mouth terhadap keputusan pembelian pada marketplace Shopee produk Skintific. Penelitian kuantitatif ini menggunakan sampel sebanyak 46 responden dengan teknik accidental sampling. Data dikumpulkan melalui kuesioner dan dianalisis menggunakan regresi linier berganda dengan bantuan program SPSS. Hasil penelitian menunjukkan bahwa Konten Pemasaran berpengaruh positif signifikan terhadap keputusan pembelian, sementara Electronic Word of Mouth tidak berpengaruh signifikan. Temuan ini menekankan pentingnya strategi konten pemasaran dalam mempengaruhi keputusan pembelian, khususnya pada produk skincare yang dipasarkan melalui platform digital

Phoric measurements at near with three different target designs

Phoric measurements at near with three different target design

Thermal characterisation of the cooling phase of post-flashover compartment fires

The main characteristics of the cooling phase of post-flashover compartment fires are studied using a simplified first-principles heat transfer approach to establish key limitations of more traditional methodologies (e.g., Eurocode). To this purpose, the boundary conditions during cooling are analysed. To illustrate the importance of a first-principles approach, a detailed review of the literature is presented followed by the presentation of a simplified numerical model. The model is constructed to calculate first-order thermal conditions during the cooling phase. The model is not intended to provide a precise calculation method but rather baseline estimates that incorporate all key thermal inputs and outputs. First, the thermal boundary conditions in the heating phase are approximated with a single (gas) temperature and the Eurocode parametric fire curves, to provide a consistent initial condition for the cooling phase and to be able to compare the traditional approach to the first-principles approach. After fuel burnout, the compartment gases become optically thin and temperatures decay to ambient values, while the compartment solid elements slowly cool down. For simplicity, convective cooling of the compartment linings is estimated using a constant convective heat transfer coefficient and all linings surfaces are assumed to have the same temperature (no net radiative heat exchange). All structural elements are assumed to be thermally thick. While these simplifications introduce quantitative errors, they enable an analytical solution for transient heat conduction in a semi-infinite solid that captures all key heat transfer processes. Comparisons between the results obtained using both approaches highlight how, even when considering the same fire energy input, the thermal boundary conditions according to the Eurocode parametric fire curves lead to an increase energy accumulated in the solid after fuel burnout and a delay in the onset of cooling. This is not physically correct, and it may lead to misrepresentation of the impact of post-flashover fires on structural behaviour