Thievery is a problem that can harm theft victims. Thievery usually occurs at night when there is no supervision of goods in a location. To avoid thievery and monitor conditions in a location, CCTV (Closed-Circuit Television) cameras can be used. However, the function of CCTV camera systems is only a passive monitoring systems. In this paper, a human activity recognition is designed using CCTV cameras to produce a security system. Inputs on the recognition process are videos obtained from CCTV cameras installed in the shrimp pond. Human activity recognition that is used in this study is Convol…
The necessity of learning assistance for elementary student is to ensure that students can absorb the learning well. In order to keep track of the student's progress, the teacher needs to know how and what the student has done while at home. The FeedbackMe application was created to become a liaison between teachers and parents during distance learning. Firebase Realtime Database is implemented to support messages to be delivered quickly. The purpose of this study is to implement the Firebase Realtime Database into the FeedbackMe application to support remote student learning. The system devel…
Diabetes is a disease caused by high blood sugar in the body or beyond normal limits. Diabetics in Indonesia have experienced a significant increase, Basic Health Research states that diabetics in Indonesia were 6.9% to 8.5% increased from 2013 to 2018 with an estimated number of sufferers more than 16 million people. Therefore, it is necessary to have a technology that can detect diabetes with good performance, accurate level of analysis, so that diabetes can be treated early to reduce the number of sufferers, disabilities, and deaths. The different scale values for each attribute in Gula Kar…
A control unit based-on web in smarthome system has been designed and constructed. The control unit can be integrated into the smarthome system platform for gate operation via a smartphone. The research objectives, namely (i) integration of hardware and availability of raw files for applications, (ii) programming for control unit, and (iii) availability of control unit and implementation of validation tests. The result of integration is a form of successful hardware handshaking. The programming result is a form of successful software handshaking, including (i) a flowchart-based algorithm, whil…
much needed to meet the needs of both industry and households. However, tomato plants still require serious handling in increasing the yields. Data from the Central Bureau of Statistics shows that the number of tomatoes produced is not in accordance with a large number of market demands, resulting from the decrease of tomato yields. One of the obstacles in increasing tomato production is that the crops are attacked by septoria leaf spot disease due to the fungus or the fungus Septoria Lycopersici Speg. Most farmers have limited knowledge of the early symptoms, which are not obvious, and also f…
The emergence of the COVID-19 case has a major impact on all sectors. At this critical time, customer satisfaction can be done by optimizing the use of resources by implementing BPI. The BPI method will conduct a review regarding the resources owned and will be adjusted to the current conditions. BPI is closely related to changes in project management. One of the optimal methods used in project management is FLASH, where the project duration will be in the form of a more flexible time interval. In this research, the system also uses Trello as a project management application. The purpose of th…
Availability of fossil fuels as a non-renewable energy source has decreased due to the increase of energy consumption. Therefore, it is needed an alternative renewable energy sources, such as conversion of biomass derived from acacia mangium wood. Bio-oil can be produced by pyrolisis of Acacia mangium wood with catalyst Ni/clay. The purpose of this research are to produce bio-oil from acacia wood, to characterize of Ni/clay catalyst, to determine the effect of the impregnation of Ni metal in to clay and ratio of Ni/clay catalyst on the yield of bio-oil and to determine the physical and chemica…
Pekanbaru area produced scrap of beverage cans; an average of 4.5 tons per month by a scrap collector and it will increase every time. The Pekanbaru area also has natural clays, which can be used as mold material for investment casting. Processing of aluminum cans into a product using the natural clays as a mold in investment casting method will add the economic value of aluminum scrap cans. Study of fluidity is necessary to obtain usable information before creating of cast part design. This research aims to investigate the influence of pour temperatures to fluidity for the aluminum scrap cans…
Hydroxyapatite Ca10(PO4)6(OH)2 is a calcium phosphate compound which is bioactive ceramic material with high bioafinitas and the principal inorganic constituent of bones and teeth. Hydroxyapatite (HAp) materials use as bone implants, adsorbents and catalysts. In this research synthesis of hydroxyapatite can be made by using material which is rich of CaCO3 like PCC chicken’s egg shell with a composition of 99,45% CaCO3. PCC chicken’s egg shell which has calcium source synthesized to HAp by hydrothermal process with variated times of reaction (14 hours; 16 hours; 18 hours) and reac…
Crude palm oil (CPO) with a free fatty acid content (ALB) high crude can be processed into biodiesel. At present, various types of catalysts have been investigated for the process of making biodiesel from vegetable oils that have high levels of ALB, which of one is ZnO. This study aims to synthesis ZnO catalyst of precipitant ZnCO3 and is used as a catalyst in the process tranesterifikasi crude oil into biodiesel. The catalyst that has recycle synthesized and analyzed by FTIR, and the results compared with the FTIR spectrum of ZnO (Merck). Based on the results of FTIR analysis, synthesis catal…
Zeolite 4A is one of the synthetic zeolite which it is used as ion exchange. This zeolite can be synthesized from silica and alumina. This study aims to utilize the waste in the oil industry as the base material zeolite 4A synthesis and get the best conditions influence the volume ratio of reactants (sodium silicate/sodium aluminate), and long agitation in 4A zeolite synthesis process. 4A zeolite can be synthesized from the ashes of waste oil were melted with sodium hydroxide to make sodium silicate. 4A zeolite synthesis reaction process is done by mixing the reactants (sodium silicate and sod…
The development of electronics technology is correlated to increasing use of electronic device, it causes a buildup of electronics waste every year. An example is Video Graphics Array (VGA) Computer still has the precious metals components. In this research, gold separation process of VGA computer has been done by using variation ratio samples : HNO3 solvent (1: 3; 1: 6; 1: 9) and two precipitants NaHSO3 and H2C2O4. Initially VGA cut into size from 5-10 mm, then it was leaching by HNO3 solvent at 70 ℃ for 1 hour. Afterwards filtrate is separated from residual sludge. Residual sludge was …
Biodiesel is a highly potential material to replace diesel fuel. Renewable and environmentally friendly. Waste cooking oil can be used as raw material for making biodiesel. Free fatty acid levels are high in waste cooking oil requiring pretreatment (esterification) in the process of making biodiesel. In this study transesterification reaction conducted by catalyst synthesized ZnO of ZnCO3. This study aims to determine the effect of variations in reaction time and variations the amount of catalyst to yield biodiesel produced. After esterification of free fatty acid levels in the oil can be lowe…
Hydroxyapatite (HAp) Ca10(PO4)6(OH)2 is a calcium phosphate compound which is bioactive ceramic material with high bioafinitas. It is one of bones and teeth constituent. In this research, HAp was synthesized by hydrothermal process with pH reaction of 8, 10, 12 and temperature reaction of 130, 150 and 170oC. Samples were characterized by Transform Infrared Spectroscopy (FTIR). The results of FTIR analysis revealed that synthesis of HAp with hydrothermal process showed the formation of hydroxyapatite with the presence of peaks PO43- and OH-. The best condition in this research at pH 12 with rea…
Regions Mutiara Witayu is an area with low ground, where not all runoff from rainwater can flow by gravity into the Siak River, when the high tide happen on Siak River during the rainy season there will be some back waters, so the water that should be drainaged to Siak River become overflow. This study aims to determine the capacity of the pump to serve the existing flood volume. From the calculation of flood volume that can be accommodated by the reservoir is at 5050, 876 m3. To overcome the flood in the area Mutiara Witayu completely due to R5, R10 and R25 without causing inundation by using…
Palm frond has been utilized only for raw source of animal feed, compost and organic fertilizer in plantation area. Oil palm fronds has calorific value of 17.200 kJ/kg. Calorific value can be enhanced by carbonization followed by densification. By carbonization, the elements of smoke maker is able to be minimalized, so it will produce the green exhaust gases. Biomass densification aims to increase density and decrease handling issue such as storage and transportation. Calorific value of densification product can be enhanced more by adding filler like crude glycerol that has calorific value of …
A paucity of research exists that examines how well hearing-impaired students function in the primary and secondary grades when attending a general education setting. The research that does exists to suggest that issues of poor self-perception, challenges regarding a sense of belonging, and self-image may be amplified for the non-hearing student. The current investigation examines the self-reported feelings of the hearing-impaired students relative to the student with no identified hearing difficulties. Results suggest that while social belonging may be a problem for the hearing-impaired stude…
The Millennium Development Goals (MDGs) which include eight goals have been framed to address the world's major development challenges by 2015. In India, considerable progress has been reported to be made in the field of basic universal education, gender equality in education, economic growth and other human development related aspects. Even though the government has implemented a wide array of programmes, policies, and various schemes to combat these challenges, further intensification of efforts and redesigning of outreach strategies are needed to give momentum to the progress toward achieve…
The purpose of this research is to design assessment instrument to evaluate science generic skill (SGS) achievement and chemistry literacy in ethnoscience-integrated chemistry learning. The steps of tool designing refers to Plomp models including 1) Investigation Phase (Prelimenary Investigation); 2) Designing Phase (Design);Â 3) Construction/Realization Phase (Realization/Construction) ; 4) Test, Evaluation and Revision Phase. (Test, Evaluation and Revision). Â To test the validity of assessment instrument, it was used content validity by three experts as validators, while to test the pr…
This study aimed to investigate the relationship between organizational justice and cynicism at school organizations. Thus, explanatory sequential research design, in which both qualitative and quantitative methods are used, has been used. Under the quantitative part, meta-analysis has been used so that 159 studies consist of articles and dissertations about cynicism being done within Turkey have been reached throughout literature. With further enquiries, it was found that 16 of them include the relationship between organizational justice and cynicism. Considering inclusion criteria, eight stu…