Delay in the handling of a type of disease can pose a risk for someone who has the surrounding environment. Often the casualties are caused by people's ignorance of the spread of dangerous infectious diseases. People's ignorance as an action that must be done immediately and where to do to get help. Thus it is necessary to build an application of an expert system that can diagnose infectious diseases, provide recommendations for disease management, and provide recommendations for appropriate and acceptable health services. The system was built to diagnose six types of infectious diseases that are of particular concern to Malang City. Various infectious diseases with similar symptoms that appear will lead to the possibility of a diagnosis and many possibilities for diagnosis. The Dempster Shafer method is an approved one that can be used in overcoming these factors. The disease expert consultation system application using the Dempster Shafer method obtained an accuracy test result of 88.5%. While the system usability test obtained results, 76% agreed to system reliability, 85% strongly agreed to system efficiency, 83% strongly agreed to ease for use system, and 79% agreed to accurate system.

Penyakit diabetes melitus harus dipantau secara kontinu dan pemeriksaan kadar gula darah secara invasive (melukai kulit), pasien berpenyakit diabetes sangat berbahaya karena dapat menimbulkan luka yang susah sembuh. Peralatan dalam bidang kedokteran untuk pemeriksaan gula darah dalam tubuh telah mengalami berbagai pengembangan, salah satunya pengukuran gula darah dalam tubuh dengan cara non invasive melalui media urine. Namun hal tersebut kurang akurat, maka diperlukan sensor yang dapat mendeteksi perubahan warna kemudian dibaca nilai RGB nya oleh mikrokontroler. Salah satu sensor warna yang digunakan salah satunya TCS3200 dan mikrokontroler Atmega8. Berbagai penelitian pengukuran kadar gula darah dalam urine hanya ditampilkan pada layar LCD dan tidak meyimpan data hasil pengukuran. Dengan permasalahan yang ada, diperlukan suatu alat yang mengeluarkan hasil output pengukuran kadar gula darah dalam urine dan ditampilkan dengan aplikasi database rekam medis pasien sehingga dapat di monitoring secara kontinu.

Upaya untuk menekan pemborosan energi listrik sudah banyak di lakukan sejak lama, hal ini merupakan dampak dari krisis energy yang sangat berpengaruh pada dunia perindustrian, baik itu jasa maupun barang. Comparation cost energy adalah program aplikasi yang dibuat menggunakan sofwtware NeatBeans untuk membantu melakukan perhitungan cost energy listrik berdasarkan harga listrik Rp/kWh dengan membandingkan harga energi listrik dari sumber yang berbeda. Comparation cost energy ini akan menghasilkan selisih harga dari harga energy listrik 1 dan harga energy listrik 2 yang bisa disebut dengan energy saving. dimana dari perbedaan itu dapat dilakukan improvement untuk menurunkan biaya produksi,dan rekomendasi  cost investment sehingga dapat di ketahui energy saving, pay back periode dan Return On Investment. Pengunaan sistem ini dapat diaplikasikan pada industri-industri, Rumah Sakit atau Data Center dimana terdapat dua sumber energi listrik yang berbeda, dan dapat digunakan sebagai sarana pembelajaran mahasiswa sebagai modul audit energi.

The combination of particles and gases with a specific concentration will be an air pollution that is dangerous for life. So air quality openly places and public health service institutions are also affected. One of them is a hospital is a place of health services for the surrounding community must have an inpatient room that is qualified both air conditioning, construction, waste treatment and facilities. Air conditioning systems are very important, especially in isolation rooms to prevent the breeding and proliferation of COVID-19. This research aims to find out the air quality in the isolation room has met existing standards or not, it requires monitoring of temperature, humidity and air pollution by harmful gases periodically and in real time. In addition, it makes it easier for officers in the monitoring room to know the air quality at any time and can save time and improve air conditioning monitoring so that it is more efficient. The results showed that the room using air conditioners can adequately standardize air quality for COVID-19 isolation rooms. The results of the experiment were a temperature of 24°C, humidity of 64.1%, carbon dioxide of 0.07ppm, carbon monoxide of 26.74 μg/m3, and air particulates of 0 μg/m3. This thesis is expected to contribute to increasing the number of COVID-19 declines and realizing the prototype of the air quality monitoring system design in the COVID-19 isolation room.