36 research outputs found
Synthesis of green Fe3+/glucose/rGO electrode for supercapacitor application assisted by chemical exfoliation process from burning coconut shell
No full textSulfuric acid intercalated-mechanical exfoliation of reduced graphene oxide from old coconut shell
No full textRisk analysis using AS/NZS 4360:2004, Bow-Tie diagram and ALARP on construction projects of Banyumanik Hospital
No full textSynthesis of SiO<sub>2</sub> nanopowders containing quartz and cristobalite phases from silica sands
No full textAbstract
In this study, extraction and synthesis of SiO2 nanoparticles from silica sands have been conducted by means of two different methods, i.e. dry method (method 1) and hydrothermal process (method 2). The basic difference between the two methods is in the extraction step. The two methods were compared in terms of being more efficient, economical, and superior in obtaining SiO2 nanoparticles. The SiO2 nanoparticles were characterized in terms of phase purity, crystallinity, Si-O functional bonding as well as particles size and morphology. The most interesting fact in this study was the formation of both quartz and cristobalite phases within all prepared SiO2 nanoparticles.</jats:p
Analisis Pengendalian Kualitas Produk Roti Tawar Mr.bread dengan Metode Fmea (di Bagian Produksi Cv.essen)
No full text[Title: Please Type Title of Article in English in here and Bold formated] In its development, CV.Essen engaged in the manufacturing industry is always trying to improve the quality of the bread produced. The company found a product that does not comply with the standard. Thing that happens is the Vendor tends to eliminate product defects by repairing or replacing the product. However, the concept of quality that is now not only remove or repair the product, but it is a system that is oriented toward the prevention of product defects. Because defects in each variant is the same bread, the authors take a skin as white bread samples. The method used is the author of Statistical Process Control (P-Chart), and Pareto diagram to determine the type and number of defective products. Then the author uses the method of Cause-Effect Diagram Failure Mode and Effect Analysis (FMEA) to determine the cause of defects in the product. At the time of the study, the authors propose a method based on the proposals that were examined above. Of the FMEA method can be identified failure modes that occur in the process of making bread is the failure of bald skin and wrinkle failure. The highest RPN value on defects of bald RPN value is 640 while the highest was 360 Proposed wrinkle defect fixes given to the company as a whole is much improved control on the production process and provide training regarding the production process as well as provide training run molding machines
Advancements in Cooperative Mobile Robots Control Strategies for Large-Scale Material Transport: Review
No full textThis paper explores groundbreaking advancements in control strategies for cooperative mobile robots used in large-scale material transport, a critical aspect of modern industrial, manufacturing, logistics, and construction sectors. It delves into the development of sophisticated systems that enable seamless coordination among multiple mobile robot systems. The research presents a novel hierarchical finite state automaton for dynamic mission adaptation and a null space-based control scheme for precise task execution and enhanced system resilience. The introduction of Mecanum wheels facilitates flexible movement and manipulation of materials, thereby increasing the operational efficiency and safety. Cutting-edge sensory technology, including LiDAR (Light Detection and Ranging), and the implementation of Robot Operating System are highlighted for their roles in enhancing autonomous navigation and intelligent operation. Additionally, the paper discusses the impact of centralized and decentralized control methods in ensuring safe cooperative object transport. The findings contribute to the vision of Industry 4.0 by promoting the integration of automation and robotic cooperation in complex environments and present a foundational blueprint for further research. Challenges for future work such as scalability, communication efficiency, collision avoidance, and energy efficiency are also considered, underscoring the need for ongoing development of robust and scalable robotic systems to address modern transport challenges
Sharia Life Insurance: Legal Basis and Operational Systems
No full textIslamic life insurance is a non-bank financial institution that is used by the Muslim community as a medium in anticipating risks that might arise in the future. So that people make insurance, especially sharia life insurance as an alternative in dealing with future risks related to one's life. This study aims to determine the legal basis for sharia life insurance and its operating system as a forum for information for Muslim communities in Indonesia. In this study, the author uses the doctrinal research method in which the approach used is the regulatory approach (Islamic law) and the conceptual approach. This research prioritizes secondary data in its management such as primary legal materials, secondary legal materials, and tertiary legal materials. This study shows the origin of Islamic insurance is derived from the traditions of the Arab community at the time of the Prophet Muhammad, called Akilah. If someone dies (killed) by someone, then the family of the murderer is obliged to pay blood money (diyat) to the heirs of the victim. The blood money was collected from murderous families and then handed over to the heirs of the victims. This tradition later developed into Islamic insurance known today. Sharia insurance operational system is to use two contracts, namely Tabarru contract and mudharabah contract. With the existence of these two contracts, the elements of gharar, maysir and riba can be removed
Analysis of thin layer optical properties of A-Si:H P-Type doping CH<sub>4</sub> and P-Type without CH<sub>4</sub> is deposited PECVD systems
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