Garbage is a problem that must be handled properly. Currently, technology and information are also used to assist waste management, namely the Smart Trash Bin. In this research, the design and construction of the Mobile Smart Trash Bin is carried out. The design of this smart trash bin not only has an automatic function to open and close the trash can, but also has a mobile function that allows the trash can to move closer to the person who is going to throw garbage. A smart trash bin mobile robot system is designed using a photodiode sensor as a line reader (track robot) and a servo motor is used to open and close the trash can. In addition, Bluetooth HC05 is used to activate the robot via voice commands from an android smartphone. The mobile robot smart trash bin runs according to the system designed. Sampah merupakan permasalahan yang harus mendapatkan penangan yang tepat. Saat ini, teknologi dan informasi juga digunakan untuk membantu pengelolaan sampah yaitu dengan adanya tempat sampah pintar (Smart Trash Bin). Pada penelitian ini dilakukan perancangan dan pembuatan Mobile Smart Trash Bin. Rancangan smart trash bin ini tidak hanya memiliki fungsi otomastiasi buka tutup tempat sampah tetapi juga dilengkapi fungsi mobile yng memungkinkan tempat sampah untuk bergerak mendekati orang yang akan membuang sampah. Dirancang suatu sistem mobile robot smart trash bin dengan menggunakan sensor fotodioda sebagai pembaca garis (track robot), motor dc sebagai penggerak mundur maju robot dan motor servo digunakan untuk membuka dan menutup tempat sampah. Selain itu, Bluetooth HC05 digunakan untuk mengaktifkan robot melalui perintah suara dari smartphone android. Mobile robot smart trash bin berjalan sesuai dengan sistem yang dirancang.
Bioethanol is an alternative biofuel that is widely produced in bulk to replace and complement petroleum-based fuels. Bioethanol is produced through the alcoholic fermentation of sucrose or simple sugars. One of the potential source for bioethanol production that has not been studied is leaf litter. Various studies have shown that T. viride and Z. mobilis can be used for bioethanol production, but there has been no report on the production of bioethanol from leaf litter using a consortium of T. viride and Z. mobilis using the SSF method. This study aims to examine the effect of pretreatment and composition of the consortium of T. viride and Z. mobilis on the production of bioethanol from leaf litter. Leaf litter was dried and mashed, then pretreatment was carried out with 32% NH3 solution. The bioethanol production process using the SSF method uses a consortium of T. viride and Z. mobilis with a composition of 5%: 5%, 10%: 5%, 5%: 10% and 10%: 10% (w/v). SSF was carried out for 72 hours at a temperature of 35oC and pH 5. The bioethanol was purified by distillation and the ethanol content was tested with GCMS. Higher levels of bioethanol were found in leaf litter with pretreatment than without pretreatment. The highest ethanol content (0.6721%) was obtained from SSF with consortium composition of T. viride : Z. mobilis (10% : 10%) from leaf litter with pretreatment. Pretreatment and composition of the consortium T. viride and Z. mobilis affect the production of bioethanol from leaf litter.
Demam tifoid adalah penyakit sistem pencernaan yang berada di usus halus dan disebabkan oleh bakteri Salmonella typhi. Gejala penyakit ini yaitu demam berkepanjangan, bakteriemia, dan invasi bakteri serta multiplikasi ke dalam sel-sel fagosit mononuklear dari hati, limpa, kelenjar getah bening, usus, dan peyer’s patch. Diagnosa demam tifoid melalui pemeriksaan utama seperti pemeriksaan TUBEX dan pemeriksaan follow up seperti pemeriksaan SGPT dan SGOT. Tujuan dari penelitian ini untuk menganalisis kadar Serum Glutamic Pyruvic Transaminase (SGPT) dan Serum Glutamic Oxaloacetic Transaminase (SGOT) pada penderita demam tifoid berdasarkan jenis kelamin dan usia. Penelitian ini berjenis deskriptif dengan desain cross-sectional. Teknik sampling yang digunakan adalah purposive sampling dan memperoleh 82 sampel. Pengolahan data menggunakan software IBM SPSS Statistics 25 dengan uji univariat. Hasil penelitian dari 82 orang terdiri dari 41 laki-laki (50%) dan 41 perempuan (50%). Usia anak (5-11 tahun) sebanyak 3 orang (3,7%), remaja (12-25 tahun) sebanyak 32 orang (46,3%), dan dewasa (26-45 tahun) sebanyak 47 orang (57,3%). Kadar SGPT tinggi sebanyak 44 orang (53,7%) dan normal sebanyak 38 orang (46,3%). Kadar SGOT tinggi sebanyak 46 orang (56,1%) dan normal sebanyak 36 orang (43,9%).
Salah satu sektor industri yang terus mengalami peningkatan adalah industri makanan dan minuman. Tantangan besar yang dihadapi industri makanan dan minuman adalah masa simpan produk yang relatif pendek akibat degradasi oleh mikroorganisme. Cahaya UVC dapat digunakan untuk mensterilkan bahan pangan dari mikroorganisme sebagai upaya memperpanjang masa simpan produk pangan. Cahaya UVC sejak lama digunakan untuk sterilisasi air minum dan berbagai produk pangan, namun di Indonesia pemanfaatanya untuk sterilisasi makanan masih jarang dilakukan. Pada penelitian ini dirancang dan dibuat sebuat alat portable sterilizer untuk membunuh mikroorganisme pada produk pangan sehingga masa simpannya menjadi lebih panjang. Penelitian dilakukan dengan tahapan : yaitu perancangan sistem, pembuatan alat, pengujian subsistem dan pengujian sistem secara keseluruhan. Alat sterilizer portabel yang dibuat dilengkapi dengan pengaturan intensitas cahaya, waktu penyinaran, sensor ultrasonik dan sensor massa yang ditampilkann pada LCD touchscreen. Pengaturan intensitas cahaya dan waktu penyinaran sangat diperlukan untuk menentukan proses sterilisasi yang optimal. Pengujian alat menunjukkan hasil pengukuran dengan akurasi yang baik.
Objective: Coronavirus disease 2019 (COVID-19) is caused by a novel coronavirus, named Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). WHO declared COVID-19 as pandemic On March 11. Methods: RDT dan RT PCR was used for SARS-CoV-2 detection. Medical laboratory technicians and medical laboratory technologists play a vital role to provide the clinical support for the diagnosis of Covid-19. They must have good knowledge of the diagnosis methods to avoid the inaccurate or missed results. This study investigated the level of knowledge of them RDT and RT-PCR. The research design used was descriptive with a cross-sectional approach used questionnaire, with a sample of 102 people. Result: Statistical analysis that is used in descriptive is a way of analysis. The results showed that respondents had adequate level of knowledge about 77.5%, the respondents had poor knowledge of RDT 12.7%. As many as 9.8%, respondents had good knowledge of RDT. The respondents had adequate level of knowledge about RT-PCR 39.2%, the respondents had poor knowledge of RT-PCR about 57.8%. As many as 2.9% of participants had good knowledge of RT-PCR. Conclution: The researchers concluded that most of the respondents were well knowledgeable about RDT and were less knowledgeable about RT-PCR for COVID-19 detection
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