Rindu Hati merupakan desa yang dinobatkan sebagai desa wisata. Kondisi objek wisata Desa Rindu Hati saat ini membutuhkan pengembangan untuk lebih banyak menarik wisatawan. Penambahan objek wisata juga menjaga agar Desa Rindu Hati tetap menjadi pilihan orang-orang untuk tetap berekreasi. Rainbow Vertical Garden merupakan konsep agrowisata berbentuk taman mini yang berisi bunga berwarna warni yang digantung pada dinding penegak. Tujuan kegiatan pengabdian ini adalah untuk memperkenalkan dan meningkatkan perkembangan kepariwisataan Desa Rindu Hati sebagai Desa Wisata dengan pengembangan objek wisata baru yaitu Rainbow Vertical Garden. Permasalahan yang dihadapi di desa Rindu Hati adalah pengembangan objek wisata belum ada pengembangan agrowisata yang berbasis pertanian di Desa Rindu Hati. Sasaran utama dari program pengabdian pembinaan ini yaitu Pengelola Wisata Desa Rindu Hati dan Perangkat Desa Rindu Hati. Metode yang dilakukan oleh Tim LPPM UNIB ini merupakan konsep baru yang mengacu pada agrowisata dengan memanfaatkan tanaman hias dengan sistem Rainbow Vertical Garden. Hasil dari kegiatan pengabdian ini adalah mengenalkan masyarakat desa Rindu Hati tentang pemanfaatan Vertical Garden dan pengaplikasian Rainbow Vertical Garden dengan lahan vertikal di Desa Rindu Hati sebagai sebagai agrowisata baru.
Applied physics can be involved and integrated with various fields of science. Sonic bloom technology by utilizing sound waves in fact can increase plant growth. This research is the development of the audio bioharmonic (ABH) device to create an efficient, practical, and easy-to-use for farmers. The design and manufacturing of an ABH device based on an Arduino UNO Atmega 328p with manipulated frequencies have been done. The original sound source of Garengpung (Dundubia Manifera) was manipulated around the range of 3000-5000 Hz and the frequency spectrum was calculated using Fast Fourier Transform (FFT) analysis. The results show that the peak frequencies obtained are 3241, 4167, and 4963 Hz as the sound sources of mp3 files. Furthermore, the ABH device was validated by comparing the results of the FFT analysis of the sound source of the mp3 files with the sound recording of the ABH device. As the result, the deviations of the peak frequency obtained are 259, 140, and 172 Hz. And the last, the sound pressure levels (SPL) of audio bioharmonic output at different frequencies are measured using a sound level meter in real-time for 30 minutes. All frequencies have stable SPL at 80-100 dB.
The study of transmission probability and IV chracteristics of a G4 molecule] In this era, there have been many theoretical and experimental studies conducted to enhance technological development. The development of technology continues to grow rapidly with electronic components that are getting smaller towards nano. Nanotechnology is becoming increasingly interesting because it can be created through DNA that is found in either the human body or other living things. This research was conducted to study DNA transport properties by calculating transmission probabilities and I-V characteristics. The DNA studied is DNA that has been modified consisting of 4 guanine bases arranged stacked to form a square called G4-DNA. G4-DNA is composed by having 32 base pairs and connected by electrodes at the end. The transport properties of G4-DNA were studied using the Hamiltonian tight binding approach. Transmission probability is calculated using the method of the Green Function Hamiltonian to determine the possibility of electrons flowing along the DNA pathway. This transmission probability is used in determining the I-V Characteristics based on the Landauer Büttiker formula. The results are obtained that the electron transport process along the G4-DNA molecule is an increase in current to high voltage. The effects of I-V characteristics are seen by affecting the twisting motion frequency up to 5.12 meV which is a significant increase in current. The results of this study can provide information about the characteristics of DNA that can be applied in the future in manufacture of nanotechnology device.
Alat uji kekeruhan air dirancang dengan menggunakan turbidity sensor berbasis Arduino Uno untuk mengukur tingkat kekeruhan air. Pengujian alat dilakukan dengan dua tahap. Tahap pertama, pengujian dalam rangka kalibrasi menggunakan lima sampel yang disimbolkan dengan sampel A-E. Sampel ini diukur untuk mendapatkan luaran tegangan dari alat rancangan dan tingkat kekeruhan air (NTU) dari alat standar. Hasilnya sampel A diperoleh 4,17 V dan 3,014 NTU, sampel B 4,066 V dan 43,02 NTU, sampel C 3,864 V dan 225 NTU, sampel D 3,798 V dan 312 NTU, sampel E 2,49 V dan 3000 NTU. Nilai pengukuran ini digunakan untuk kalibrasi alat rancangan. Tahap kedua, alat yang sudah terkalibrasi dilakukan pengujian ulang dengan data luaran NTU. Data pengukuran ini digunakan untuk menghitung kesalahan relatif dengan membandingkan data yang diperoleh dari alat standar. Hasilnya diperoleh bahwa tingkat error paling kecil saat pengukuran sampel > 220 NTU dengan tingkat error dibawah 10 %. Sedangkan, tingkat error terbesar saat pengukuran kekeruhan air < 220 NTU dengan tingkat error diatas 10% hingga mencapai 100%. Kata Kunci: Arduino Uno, Turbidity Sensor, Alat kekeruhan air
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