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This study aims to determine the best distance to install a CCTV camera in identifying a person’s face in the passenger inspection area at the airport, which can be developed for suspect detection systems. The training data used is in the form of an image with five different angles per person, while the testing data is in the form of video. The initial stage conducted is face detection based on local features (a pair of eyes, nose, and mouth) in the input data using the Viola-Jones method. The face detection results process with pre-processing, feature extraction, and classification. In the pre-processing stage, the Brightness Enhancement (BE), Grayscale and Contrast Limited Adaptive Histogram Equalization (CLAHE) methods are used to improve the quality of the detected face. Furthermore, the feature extraction and classification stages use the Histogram of Oriented Gradient (HOG) and the Multi-class Support Vector Machine (MSVM) methods, respectively. The result shows that the best accuracy obtained is 86.76% for a CCTV camera distance of 300 cm and a height of 250 cm.

Coronavirus Disease (COVID-19) is an infectious disease that has a high fatality rate and is spreading quickly throughout the world. The WHO claims that SARS-CoV-2, a brand-new coronavirus strain, is to blame for this outbreak (Severe Acute Respiratory Syndrome Corona Virus-2) and that COVID-19 must be treated with both conventional medical therapy and a combination of modern medicine. The technique of this study, a review of the literature, focused on numerous investigations looking at the potential of curcumin molecules from turmeric to cure the COVID-19 disease. Primary data for scientific papers is gathered from national and international journals through searches on electronic search engines like Google Scholar, Sciencedirect, or PubMed and selected publications are assessed, evaluated, and interpreted by authors. Turmeric contains substances that are immune system boosters, anti-inflammatory, antitumor, antiviral, and antioxidants. Curcumin may prevent a number of viral infections, according to evidence. In vitro testing has shown that the SARS-CoV virus is resistant to curcumin's antiviral properties. It's possible that curcumin can halt viral replication. Curcumin has the potential to treat COVID-19 effectively. Curcumin has antiviral activity that can fight the SARS-CoV-two virus. Treatment with curcumin can change the virus top protein structure, preventing the virus from entering the body and from budding. Future study on the use of curcumin as SARS-Cov-2 virus inhibitory agent is necessary in order to employ it as a novel and long-lasting therapy option for COVID-19 patients.

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The quality of the water used by the community in Worongnge Village is poor water quality, therefore alternative solutions are needed to treat water so that the water is suitable for use. One process that can be used is the coagulation-flocculation process with Moringa seeds. The purpose of this study was to determine the concentration of Moringa seeds can stabilize the quality of water pH, TDS, and turbidity (turbidity) of river water in Worongnge Village. This research was conducted in the form of an experiment consisting of 5 treatments and each treatment used 1 liter of river water and each would be given 3 variations of time: (12 hours, 24 hours, 36 hours). The design is as follows: P0: 1 liter of river water without treatment P1: Provision of 1 liter of river water and 2 g of Moringa seed extract. P2: Giving 1 liter of river water and 4 grams of Moringa seed extract. P3: Giving 1 liter of river water and 6 grams of Moringa seed extract. P4: Giving 1 liter of river water and 8 grams of Moringa seed extract. The results of the research carried out found that the effective concentration of Moringa seed extract was 2gr(P1) where the results were water pH 7.2, water TDS 0.191, and turbidity (turbidity) 46. The use of Moringa oleifera seed extract as a natural coagulant is effective in reducing the turbidity of river water.