The solar panel monitoring system based on the human machine interface is a system that can control and monitor the power generated by solar panels in the form of voltage, current, power, temperature, and solar radiation parameters in real time. PLC is used to monitor the panel work system in a long distance by utilizing PLC communication as an indicator of the reading status of the sensors used. As the interface between the PLC and the user, HMI is used. By using HMI visualization and technology a system can be made real. HMI is used to facilitate physical work and increase interaction between machines and operators through computer screen displays so that they can meet the information needed by users. The hardware used is a Programmable Logic Controller SIEMENS SIMATIC 1215C DC/DC/RL, Human Machine Interface SIMATIC KTP700 basic, ACS712, K type Thermocouple, and Pyranometer. Tia Portal software is used for programming and parameter setting of each system hardware.
The purpose of this research was to determine the effect of composite fish gelatin–chitosan edible coatings enriched with black tea extract on the physical, chemical, and fungal decay properties of minimally processed watermelons stored at ±4 °C for 13 days. In this study, tuna skin gelatin was extracted and used to prepare edible coating solutions which comprised 4% gelatin, 2% chitosan, 2% calcium lactate, 2% glycerol, and black tea extract (0%; 0.25%; 0.50%; 0.75%; 1%). The samples were coated using the layer-by-layer dipping technique. This study showed that composite fish gelatin–chitosan edible coating enriched with black tea extract maintained and improved weight loss, texture (hardness), color, pH, and total soluble solid antioxidant activity and prevented fungal decay on minimally processed watermelons stored at ±4 °C for 13 days. The development in this study of edible film and a coating prepared from fish gelatin–chitosan and the incorporation of black tea extract as an antioxidant or antimicrobial agent can be a new approach to preventing postharvest loss and increasing the shelf life of minimally processed watermelon.
This study aims to analyse the business feasibility in the plan to establish a new branch office of PT BPR Kepri Bintan by focusing on the potential and feasibility aspects in accordance with the provisions of the Financial Services Authority of the Republic of Indonesia. The data used in this study is secondary data originating from reports the Central Statistics Agency of Batam City, Bank Indonesia in the form of economics reports in Batam City, the Financial Services Authority in the form of statistics on publication reports of Rural Banks and laws or regulations that support secondary data information and primary data in the form of structured interviews by the government. The findings of this study, in the feasibility study for the establishment of PT BPR Kepri Bintan when viewed from the potential and feasibility aspects, it was found that the BPR was feasible to be established.
Background:To investigate the effect of limbal mesenchymal stem cell (L-MSC) secretome in inhibition of corneal neovascularization in animal model of alkali chemical injury Methods: Secretome was collected from limbal mesenchymal stem cells of corneoscleral tissue of healthy male rabbit. Rabbits were exposed to NaOH. The research subjects consisted of 3 groups, normal control group, Balance salt solution (BSS) group, and (L-MSC) secretome group. Clinical corneal neovascularization level, number of corneal neovascularization histopathologically with hematoxylin-eosin staining and VEGF expression by immunohistochemical staining were analyzed.Results: After seven days of administration of topical instillation of L-MSC secretome, neovascularization level in L-MSC group was lower than BSS group even though the difference was not statistically significant (p>0.05). The mean histopathological neovascular count in the L-MSC secretome group was lower than that BSS group even though the difference was not statistically significant (p>0.05)
Conclusions:In conclusion, topical instillation of limbal mesenchymal stem secretome has a potential effect on inhibiton of corneal neovascularization even though not significant at day-7 in experimental alkali injury model.
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