The study on the determination of ground state energy of exotic muonic helium system by variational principle approximation has been done. The basic ideas of this method are to choose a trial wave function consisting of an adjustable variational parameter and to minimize the expectation value of its Hamiltonian operator which is called the average energy. The trial wave function used is the ground state hydrogenic ion wave function (orbital approximation). The operator Hamiltonian of this system is operated on the trial wave function and its value is minimized, from which the ground state energy of this system was found to be about . This value is greater than that of both atom and system . This difference is caused by the difference in the reduced masses of these systems in the orbital approximation.

The research about preliminary study absorption spectrum of Breadfruit leaves extract from kupang city has been done. This research aims to determine the absorption range, the absorption coefficient, the energy gap and the refractive index of Breadfruit leaves extract. Breadfruit leaves powder was extracted by maseration method, then it was evaporated by evaporator and further diluted using ethanol and then characterized using UV-Vis spectrophotometer to abtain absorption spectrum of Breadfruit leaves extract. Based on absorption spectrum data analysis, the absorption range occurs of wavelength 200 nm to 500 nm, the absorption coefficient is 105,9567 m-1, the energy gap value is 3,03 eV and the refractive index value is 1,75.

Study of types activity mass radioisotope content in reservoir sample at desa Wewo district Satarmese center of Manggarai regency has been done. The aims of this study are to determine radioisotop mass types activity interval, contamination level and the spreading location radioisotope by surveying, sampling, laboratory analyse and intepretation. The results showed that radioisotope mass type activity interval in sample water are 2,216x10­-3µCi/gram to 1,095 x 10-7µCi/gram. To the contaminated area at PLTU Ulumbu location and Ulumbu crater, level of radioisotope contamination at the survey location is include to the high alpha contamination (sample 1 and sample 2) at PLTU Ulumbu. At the sampling points (15, 19, 21,23) at Ulumbu crater the intermediate alpha contamination and low betha contamination. Whereas sampling points of 3, 4, 6, 7, 8 and 10 are the area of high contamination for alpha radiation, spreading equally at PLTU Ulumbu. The sampling points of 5 and 9 are the intermediate contamination area for alpha radiation and low intermination for betha radiation. Whereas the sampling points of 11 to 25 at the Ulumbu crater have the low alpha and betha contamination, which its spreading equally.

Mapping of landslide prone areas in Timor Tengah Utara Regency East Nusa Tenggara Province using application of remote sensing and geographic information system has been done. The research method such as making rainfall map, land cover Map, and making slope class Map.The result of Research showed that the spread of Landslide Prone areas in Timor Tengah Utara Regency consisted of three classes of Landslide susceptibility, namely (1) no Landslide-Prone area of 146284,74 ha (2) Landslide Prone area of 83546,1 ha (3) highrisk area of 2655 ha district of Mutis and Miomafo Barat.

An infant incubator has been designed to monitor and controll the temperature, humidity and noise. The system has been designed using SHT11 to detect temperature and humidity in infant incubator with measurement range for temperature sensor from -4oC to 123,8oC, resolution 0,01oC and measurement accuration +/- 0,4oC, while for humidity range 0-100% RH, resolution 0,03% and measurement accuration +/-2%RH, and Microphone (KY-038) sensor to detect noise in infant incubator. This incubator is in rectangular shape box, using acrilyc with length 85cm, width 45cm, heigth 40cm and thickness 3mm. Monitoring and controlling the temperature, humidity and noise, using wifi modul ESP8266, as comunication media type , if the temperature is >32oC and RH <70%, then command will be send and fan will be turn on, and when the temperature is <30oC and RH>80%, then command will be send and lamp will be turn on. Monitoring of noise is determined by the ligthting LED, if volume of noise detected is greater than threshold value then LED will be turn on, and when the volume of noise detected is less than or equal to threshold value, then LED will be turn off.

Has done research on spectral analysis and determination of hypocenter Lewotobi and Egon and its relation to tectonic earthquakes in the surrounding area. The puporse of the research was to determine the spectral characteristics, hypocenter, b-value, as well as investigating the relationship between volcanic earthquake and tectonic earthquake that occurred in the area around. The data of volcanic seismicity obtained from the Lewotobi and Egon PGA Post on January 1st until January 31st 2016. And the data of tectonic seismicity obtained from International Seismicity Center (ISC) catalog and U.S. Geological Survey National Earthquake Information Center (USGS/NEIC) on 1965-2016. Spectral analysis of earthquake that recorded on a seismograph in PGA post used to get dominant frequency, the deep volcanic earthquake, shallow volcanic earthquake, and local tectonic on Lewotobi used to determine hypocenter of earthquake of Lewotobi mount. For the data of tectonic earthquake obtained by doing analysis b-value. The results show that dominant frequency each earthquake that occurred on Lewotobi: deep volcanic earthquake 10-13 Hz, shallow volcanic 4,87-13,6 Hz, tornillo 1,69-16,8 Hz, harmonic tremor 1,72-2 Hz, far tectonic 1,041-5,282 Hz, local tectonic 1,80-2,79 Hz, blowing 2,54-7,53 Hz, low frequency 0,72-1,97 Hz. For earthquake on Egon: deep volcanic earthquake 10-13,0 Hz, shallow volcanic 10-12,1 Hz,9 harmonic tremor 11-20,9 Hz, swarm 11-12,3 Hz, local tectonic 11,9-12,6 Hz, far tectonic 2,62-12,6 Hz, blowing 4,88-12,8 Hz, low frequency 0,47-3,17 Hz, tornillo 12-12,6 Hz. Volcanic hypocenter erthquakemostly occurred in Lewotobilaki-laki and local tectonic occurred on southwest of mount Lewotobi. The value of b-value obtained was 1,12 ± 0,18. From the result of analysis not founded a direct correlation of volcanic and tectonic activity.

It has been designed an automatic drip irrigation system using solar cell with an output 9 V, 3,7 V rechargeable battery, XL6009 step up module, FC-28 soil moisture sensor, Nano Arduino, LED and 12 V DC ½”solenoid valve. The main purpose of this design is to conserve the use water for dry farmings. But it also can save energy and time farmers because the system can work automatically. This system specially designed for chili plants with soil moisture range between 44,5 to 76,5%. This system works using solar energy is adsorbed by the solar cell. Energy will be saved in 3,7 Volt rechargeable battery and changed to be 9 Volt by XL6009 step up modul as input for Nano Arduino. The FC-28 soil moisture sensor will detect level of soil moisture. Then Nano Arduino will receive input voltage from soil moisture sensor. If the output of the sensor more than 2,8 Volt (low soil moisture, <44,8 %), red LED will be on and solenoid valve open. If the output of the soil moisture sensor less than 1,25 Volt (high soil moisture, >76,5 %), green LED will be on and solenoid valve closed.