Judul: Tinggalklik : Aplikasi Penyewaan Fasilitas Olahraga Berbasis Community Booking
Abstrak: Olahraga berkelompok semakin diminati masyarakat Indonesia, terutama semenjak adanya pandemi Covid-19. Permasalahan olahraga berkelompok antara lain susahnya pemesanan lapangan olahraga yang mengharuskan datang langsung ke tempat, kurangnya pemain, atau tidak adanya lawan tanding. Masalah ini dapat menghasilkan peluang bisnis yang dapat menyelesaikan masalah masyarakat yang ingin berolahraga. Tinggalklik dirancang untuk memberikan solusi terhadap masalah tersebut. Tinggalklik merupakan platform penyewaan fasilitas olahraga yang mempunyai fitur community buying yang memudahkan penyewa mencari teman bermain dengan harga yang terjangkau. Penelitian ini menggunakan metode design thinking dengan memetakan empathy map, menyusun business model canvas, dan memvisualisasikannya ke dalam prototype yang diuji menggunakan UEQ atau user experience questionnaire. Hasil dari penelitian ini adalah model bisnis dan prototype Tinggalklik yang telah melalui pengujian dari responden potensial sehingga sesuai dengan perspektif dan kebutuhan konsumen.
Keyword: business model canvas, community buying, design thinking, prototype, UEQ

Judul: Designing the Business Model and Prototype of “Evereal”: An Event Organizer Marketplace
Abstrak: Perkembangan industri event organizer yang semakin pesat di Indonesia menimbulkan berbagai permasalahan bagi pengguna dalam memilih event organizer yang tepat. Penelitian ini bertujuan untuk mengidentifikasi kebutuhan dan permasalahan pengguna dalam menggunakan event organizer, merancang fitur, purwarupa, dan model bisnis Evereal. Metode yang digunakan adalah deskriptif kualitatif dengan pendekatan customer discovery. Berdasarkan hasil uji masalah ditemukan tujuh masalah yang dirasakan responden saat ingin menggunakan event organizer, beberapa diantaranya yaitu keraguan mengenai event organizer, sulit menemukan event organizer yang diinginkan, dan tidak mengetahui alur pemesanan. Solusi yang ditawarkan adalah "Evereal", sebuah marketplace berbasis situs web yang menghubungkan berbagai vendor dengan pengguna dilengkapi berbagai fitur di dalamnya. Berdasarkan uji solusi, responden menerima solusi tersebut sebagai jawaban untuk permasalahan dalam penelitian ini. Model bisnis Evereal telah terverifikasi berdasarkan aspek kesesuaian produk dengan pasar, cara mencapai pelanggan, dan bagaimana perusahaan dapat menghasilkan keuntungan., The rapid development of the event organizer industry in Indonesia has led to various challenges for users in selecting the appropriate event organizer. This research aims to identify users' needs and issues in utilizing event organizers, design features and a prototype for "Evereal," and establish the Evereal business model. The employed methodology is qualitative descriptive with a customer discovery approach. Based on the problem validation results, seven issues were identified that respondents encounter when seeking to engage event organizers. Some of these issues include doubts regarding event organizers, difficulties in finding suitable event organizers, and a lack of understanding about the service booking process. The proposed solution is "Evereal," a website-based marketplace that connects users with various vendors, equipped with a range of integrated features. According to solution validation, respondents accepted the proposed solution as an answer to the issues presented in this research. The Evereal business model has been verified through three aspects: product-market fit, customer acquisition strategy, and revenue generation mechanisms.
Keyword: Business Model, Customer Discovery, Event Organizer, Prototype, Website, Model Bisnis, Purwarupa, Situs Web

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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