Publikasi Universitas Mercu Buana
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Perancangan Driver Wireless Power Transfer Menggunakan Topologi Kompensasi LCC Dalam Peningkatan Efisiensi Transfer Daya Listrik
No full textMode kompensasi yang berbeda memiliki sensitivitas berbeda terhadap perubahan koefisien kopling sistem wirelss power transfer (WPT). Nilai puncak arus kumparan transmisi berdasarkan mode kompensasi double LCC berubah relatif sedikit ketika beban berubah. Rangkaian double LCC memiliki efek penyaringan dan kehilangan siaga yang rendah saat dinamis sehingga mampu memberikan toleransi misalignment dan meningkatkan efisiensi transfer daya. Perancangan driver wirelss power transfer menggunakan topologi kompensasi induktor-kapasitor-kapasitor (LCC) yang diterapkan pada sisi transmitter dan receiver. Nilai induktor dan kapasitor dianalisa untuk mendapatkan komponen yang sesuai. Kumparan pemancar dan penerima dengan nilai induktansi dan resistansi yang beragam diuji dan dianalisa untuk mendapatkan output daya serta efisiensi yang optimal. Frekuensi 20 kHz digunakan untuk membangkitkan arus bolak balik pada rangkaian inverter. Pada jarak kumparan terdekat 0 cm dengan suplai tegangan 12 V DC mampu mentransmisikan tegangan sebesar 7,55 V DC dan arus sebesar 0,67 mA. Daya yang dihasilkan sebesar 5,06 watt. Efisiensi daya yang dihasilkan dengan menggunakan kompensasi LCC sebesar 44,15 %. Kumparan Tx dan Rx memiliki jumlah lilitan yang sama yaitu 100 dengan bentuk spiral persegi
The Influence of Brand Ambassador, Brand Image, and Brand Awareness on Decisions to Purchase Skincare
No full textThis research aims to analyze the influence of Brand Ambassador, Brand Image, and Brand Awareness on purchasing decisions for Skintific skincare products in Batam City. In the highly competitive skin care industry, these factors are believed to influence consumers' decisions to purchase products. The method used in this research is a quantitative approach with a survey design, where data is collected through questionnaires distributed to 385 respondents who are Skintific consumers in Batam City. Data analysis was carried out using the multiple linear regression method to test the relationship between the independent variables (Brand Ambassador, Brand Image and Brand Awareness) and the dependent variable (Purchase Decision). The research results show that Brand Ambassador, Brand Image, and Brand Awareness have a significant positive influence on purchasing decisions for Skintific products. Among these three factors, Brand Ambassador shows the greatest influence on purchasing decisions. This research also found that Brand Image and Brand Awareness play an important role in shaping consumer perceptions and increasing intentions to purchase Skintific skincare products. Based on these findings, it is recommended that Skintific strengthen their marketing strategy by selecting relevant brand ambassadors, strengthening a positive brand image, and increasing brand awareness among consumers through various marketing channels
Social Media and Direct Selling of Menara Kanaya Apartment by Perumda Pembangunan Sarana Jaya Daerah Khusus Jakarta
No full textIndonesia's property companies have grown rapidly in recent years. The strategy includes social media marketing and direct sales to generate public buying interest, as used by Perumda Pembangunan Sarana Jaya, owned by Daerah Khusus Jakarta Local Government. This research aims to analyse the influence of social media marketing and direct selling on the purchase interest of Menara Kanaya Perumda Pembangunan Sarana Jaya, Jakarta. The study is based on a survey of 120 respondents, using a quantitative methodology. The results indicate that social media marketing and direct selling have a positive and significant influence on the purchase intention of Menara Kanaya Perumda Pembangunan Sarana Jaya. Social media marketing has a positive and significant influence of 57.7% on purchase interest, direct selling has a positive and significant influence of 47.1% on purchase interest, and simultaneously, social media marketing and direct selling have a positive and significant influence of 63.3% on purchase interest. The remaining 36.7% is determined by other factors not included in this study
Exploring Consumer Behavior in Coffee Shops: How Store Atmosphere and Sustainability Marketing Affect Purchase Intentions through Perceived Value
No full textRecent years, academic and practical attention toward store atmospherics has grown, driven by its consideraable impact on consumer behavior. Simultaneously, sustainability has emerged as a prominent topic across various industries, including the culinary sector. This study investigates how store atmosphere and sustainable marketing practices affect consumer purchase intention, emphasizing the mediating role of perceived value, specifically in the context of coffee shop consumption behavior in Indonesia. Data were collected via an online survey targeting frequent local coffee shop visitors, yielding 200 respondents through convenience sampling. The study utilized the Partial Least Squares Structural Equation Modeling (PLS-SEM) technique for analysis, with SmartPLS 3.0 software serving as the primary analytical tool. The dependent variable is purchase intention, while the independent variables comprise store atmosphere and sustainability marketing, with perceived value functioning as an intermediary factor in the model. The results indicate, first, that a significant and positive effect is exerted by store atmosphere on consumers’ purchase intention. Second, sustainability marketing does not demonstrate a direct and statiscally notable influence on consumers' buying decisions. Finally, Perceived value serves as a crucial intermediary in the linkage between store atmospherics, sustainability marketing, and purchase intention within Indonesian coffee shops
Machine Learning Untuk Klasifikasi Gizi Balita Menggunakan Algoritma Random Forest
No full textKesehatan balita merupakan isu kritis dalam pembangunan suatu negara. Penilaian status gizi balita adalah langkah awal untuk mengidentifikasi risiko malnutrisi dan memberikan intervensi yang tepat. Dalam penelitian ini, kami mengusulkan sebuah pendekatan inovatif menggunakan teknik Machine Learning, khususnya algoritma Random Forest, untuk klasifikasi status gizi balita berdasarkan karakteristik demografis dan pola makan. Dataset yang digunakan terdiri dari informasi demografis seperti usia, jenis kelamin, berat badan, tinggi badan, dan data gizi pada setiap balita. Algoritma Random Forest dipilih karena kemampuannya dalam mengatasi overfitting, mengelola data yang tidak seimbang, dan memberikan hasil klasifikasi yang akurat. Berdasarkan penelitian yang telah dilakukan dapat ditarik kesimpulan Tingkat akurasi yang dihasilkan dari algoritma random forest sebesar 83% dari 168 sampel menunjukkan bahwa model klasifikasi yang digunakan memberikan prediksi yang sempurna atau benar untuk seluruh data uji yang digunakan
Perbandingan Klasifikasi Single-Label dan Multi-Label Ulasan Pengguna Lapangan Futsal di Semarang Menggunakan SVM
No full textFutsal merupakan cabang olahraga yang semakin populer di seluruh Indonesia, termasuk di Semarang. Penelitian ini bertujuan untuk melakukan klasifikasi sentimen ulasan pengguna mengenai lapangan futsal di Kota Semarang menggunakan metode Support Vector Machine. Data penelitian diperoleh melalui scraping ulasan Google Maps dengan ekstensi Chrome “Instant Data Scraper” dan terdiri dari 1.189 ulasan. Proses penelitian mencakup pengumpulan data, Cleaning dan pre-processing (normalisasi teks, modifikasi data, tokenisasi, stop word filtering, stemming), pelabelan (single label dan multi label), pembagian data (80% pelatihan dan 20% pengujian), pemodelan menggunakan SVM (single label dengan GridSearchCV dan multi label dengan One-vs-Rest Classifier), serta evaluasi model dengan metrik presisi, recall, dan F1-Score. Hasil menunjukkan pemodelan Support Vector Machine single-label mencapai presisi 0,84, recall 0,73, dan F1-Score 0,78. Sementara pemodelan Support Vector Machine multi-label mencapai presisi 0,96, recall 0,88, dan F1-Score 0.92. Dari ulasan yang dinalisis, sebaran data pada single-label maupun multi-label menunjukan dominasi ulasan kategori Fasilitas, menegaskan bahwa Fasilitas merupakan kategori yang paling sering dikomentari oleh pengguna. Temuan ini tidak hanya memberikan wawasan praktis bagi pengelola lapangan futsal, tetapi juga berkontribusi pada pengembangan metode klasifikasi ulasan berbasis machine learning dalam domain analisis opini, khususnya dalam membandingkan performa pendekatan single-label dan multi-label pada data multi-kategori di bidang teknologi informasi
INTERPRETASI TOKOH MELALUI POSTER FILM JALAN YANG JAUH JANGAN LUPA PULANG
No full textPoster as one of the promotional tools that combine text and images, have an important role in film marketing strategies. Posters not only provide information, but also create emotional impressions through visual signs. In this context, posters function as a medium to convey the atmosphere and main theme of the film to potential viewers. For example, the film "Jalan Yang Jauh Jangan Lupa Pulang". This film poster displays emotional elements and visual signs that are characteristic of the characters, so it becomes an object of semiotic research to understand the interpretation of the characters in the poster. The purpose of this study is to analyze the interpretation of each character through the visual signs of the film poster. This study is expected to understand how the interpretation of the characters through the film poster "Jalan Yang Jauh Jangan Lupa Pulang" using qualitative methods and Roland Barthes semiotics
The Role of Social Media Among Women Survivors of Sexual Violence
No full textAddressing sexual violence against women is an urgent global concern that demands action at all societal levels. Unlike other forms of violence against women, sexual violence is particularly challenging to expose and address due to its association with societal norms of morality. The emergence of social media as a pivotal platform has enabled survivors to share their experiences, fostering potential preventive measures for others. Through digital platforms, survivors can promote awareness, solidarity, and collective strength, driving societal and structural changes. This research focuses on two primary objectives: 1) How to optimize social media to establish a protective environment for women survivors of sexual violence? 2) What role does the interplay of social media communication play in facilitating the empowerment of these women survivors? A qualitative descriptive approach with a case study methodology will be employed, utilizing snowball sampling for informants selection to address these aims effectively. The study aims to offer insights into how social media serves as a tool for survivors seeking support, validation, and advocacy. It will provide recommendations for using social media in prevention and education campaigns against sexual violence, aiming to enhance support for women survivors and advocate for more inclusive societal changes. Through this research, we seek to contribute to a deeper understanding of the intersection between social media and sexual violence survivorship, highlighting the platform's role in fostering empowerment and societal transformation
Effective Communication as a Pillar of Public Policy Implementation at DUKCAPIL Prima in South Sulawesi
No full textThis research aims to analyse the application of the communication model in the implementation of the DUKCAPIL Prima policy in South Sulawesi Province, and evaluate the factors that influence the effectiveness of communication in public policy. The approach used in this research is qualitative with a case study design. Data collection was conducted through in-depth interviews with the Head of the DUKCAPIL Office of South Sulawesi Province and participatory observation related to policy communication activities. The results showed that the communication model applied consisted of one-way communication and gradual communication, which proved effective in conveying policies from the central government to the district/city level. In addition, the use of various forms of messages such as instructional, motivational, informational, and feedback as well as the utilisation of various communication media (print media, radio, television, and social media) increase the effectiveness of policy delivery to the community. The significance of this research lies in a deeper understanding of the importance of a systematic and integrative communication model in the implementation of public policies, especially in the field of population administration and civil registration
STRATEGI PUBLIC RELATION PERUSAHAAN X INDONESIA DALAM MENINGKATKAN CITRA POSITIF
No full textThis study wants to answer the Public Relations strategy of Company X Indonesia in improving the company's positive image. The method used in this research is descriptive qualitative. The theory used in this research is the Model - Two way asymmetrical theory. The research results show that the Public Relations position of a Company From the strategy carried out by Public Relations, it will give rise to responses or opinions from the public in the form of feedback. In its application, Public Relations or Public Relations has various kinds of programs starting with planning or planning to evaluation within the company. Company exploration, by carrying out various positive programs and activities such as CSR programs, providing assistance during the Covid 19 pandemic, as well as scholarships and educational programs for the community, especially exploration areas, as well as collaborating with the government in Indonesia to improve the company's positive image