Saat ini model bisnis yang terjadi pada Tiara Laundry masih dilakukan secara manual dengan menggunakan kertas dalam melakukan pencatatan transaksi. Sebagai usaha laundry yang terus berkembang, proses transaksi yang masih manual ini menimbulkan berbagai permasalahan, seperti menumpuknya arsip transaksi laundry yang membuat Tiara Laundry kesusahan dalam hal perekapan data transaksi, serta lambatnya aliran informasi seringkali membuat Tiara Laundry tidak optimal dalam melaksanakan operasionalnya, termasuk dalam hal bertransaksi. Untuk itu dilakukan penelitian ini dengan tujuan membangun sebuah model bisnis pembayaran non tunai dalam melakukan pengelolaan transaksi Jasa Laundry. Pengelolaan data transaksi melalui penerapan transaksi pembayaran non tunai ini memanfaatkan teknologi QR Code yang merupakan salah satu solusi untuk dijadikan jawaban dalam permasalahan tersebut. Pemanfaatan teknologi QR Code dapat membuat proses pembayaran untuk transaksi jasa laundry lebih cepat, efisien dan nyaman. Metodologi penelitian yang digunakan dalam merancang model bisnis ini adalah studi literatur sebagai landasan teori, pengumpulan data berupa observasi dan wawancara, serta menggunakan metode pengembangan sistem waterfall. Adapun hasil yang didapatkan dari penelitian ini adalah usulan dari model bisnis yang baru dan sebuah aplikasi pembayaran non tunai untuk pengelolaan transaksi jasa laundry dalam membantu dan mempermudah kegiatan operasional pada Tiara Laundry.
Oboe playing techniques within Mozart's Oboe Concerto in C Major, K. 314, are having a quite high difficulty level. Its techniques especially fingering and breathing are not easily achieved except through long-term discipline practices. Due to its high-level difficulties, this work is often used as main materials for an international well-known orchestra audition. This work was performed by the author in his undergraduate final exam at Music Department, ISI Yogyakarta. The analysis of this work was aimed at understanding its musical style as well as its applied oboe techniques for further interpretation. Through this analysis, the author looks at a playing approach by trying several musicological as well as technical possibilities for his interpretation.
An air ionizer device can produce negative ion which ionizes the air, can be used for engine air induction system for improving the quality of fuel mixture that increase the engine output of power & torque. Test is done by using a dynamometer by comparing power & torque with installed air ionizer active and inactive. Data analysis technique using descriptive analysis of formula ttest with 5% of significant level. The t test results showed a significant increase in maximum power under active air ionizer conditions (tcount 5,128> ttable 4,303) with a significant level of 5%, increase 0.8 HP or 11.7% of inactive air ionizer with a value 7.2 HP to 8.0 HP. Meanwhile, the maximum torque shows an insignificant increase (tcount = 0.929 <ttable = 4,303) with a significant level of 5%, increase 0.5 Nm or 6.9% of inactive air ionizer with a value of 7.24 Nm to 7, 74 Nm.
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