Wear behavior of hydroxyapatite reinforced polymer composite for biomedical applications

In medical fields, hydroxyapatite (HA) is used for restoring the human bones and teeth. Nowadays, newer bio composites are being developed to replace the broken or removed teeth in human using hydroxyapatite. The original teeth may be removed from human, due to various reasons such as tooth decay, periodontal disease and gum diseases. Due to the bioactivity property of HA, it helps the tooth to grow. In this work, tribological properties of HA powder reinforced composite are investigated. Three most important factors that affect the properties of the composites were chosen and varied during wear testing of the composites. The HA powder weight %, applied load (P) and sliding distance (SD) were varied on the basis of Taguchi’s experimental design. Analysis of variance (ANOVA) and (Signal to Noise) SN ratio analysis was used to study the influence of each factor on the specific wear rate (SWR). It was concluded that the HA wt. % highly influences the SWR of the composite during pin on disc testing.

Analisis Following to Likes Ratio Tiktok Pada 5 Esport Terbaik di Indonesia

ABSTRACTTiktok is one of the social media that was founded by Zhang Yiming in 2016. Tik Tok has features that users can use to share videos of various durations. Along with the development of Tik Tok video enthusiasts from several circles such as Esports and Gamers who have circulated many short video game games from several esports, currently the 5 Best Esports in Indonesia with the most Likes, including: RRQ Esports, ONIC Esports, EVOS Esports, BOOMID Esports, BTR Esports. The purpose of this study is to calculate the credibility of the Tik Tok 5 Best Esports account performance in Indonesia. The method used in this research is quantitative exploratory, from the results of this study it can be shown that the 5 Best Esports in Indonesia with the most Likes with Following to Likes Ratio Analysis prove the highest credibility by Evos Esport with the highest score of 0.0000010366.

Analisis Video Comments to Followers Ratio Instagram Pada 6 Artis Indonesia dengan Followers Instagram Terbanyak

Instagram is one of the social media that was founded by Burn Inc in 2010. Instagram allows its users to share our everyday photos and videos and can create videos, music, filters with user creativity. In Indonesia, the number of Instagram users is more than 300 million active users. make Instagram has many fans because of its features. There are many Instagram enthusiast platforms that make people develop creativity and popularity today, such as 6 Indonesian Artists with the most Instagram Followers, including: Gisella Anastasia, Laudya Cintya Bella, Syahrini, Prilly Latuconsina, Ayu Ting Ting, and Raffi Ahmad and Nagita Slavina . The purpose of this study is to calculate the performance of the Instagram account of 6 artists with the most followers in Indonesia. The method used in this study is quantitative exploratory, from the results of this study it can be shown that 6 Indonesian Artists with the most Followers with Video Comments to Followers Ratio Analysis prove the highest by Prilly Latuconsina with a value of 0.00002181.

Implementation of the Analytical Hierarchy Process Method and Multi Objective Optimization on the Basis of Ratio Analysis in the Selection of Insurance Products

Insurance product offerings are not always understood by prospective customers (CN) due to limited information related to products. This can cause confusion so that CN does not want to buy it. The purpose of this study is to analyze the selection of insurance products PT. AIA Financial Samarinda, East Kalimantan, Indonesia uses the Analytical Hierarchy Process (AHP) and Multi Objective Optimization on the Basis of Ratio Analysis (MOORA) approach so that CNs can choose based on insurance product facilities that match their abilities. In this study, as many as 10 types of insurance products and 10 CN criteria were then analyzed based on the two methods used. Then, the calculation accuracy of the two methods has been using the confusion matrix (CM) method. Based on the results of CM calculations from 27 CN datasets with a conformity level of 81.5%, it has been obtained which indicates that the two methods can be implemented as an alternative in choosing insurance products according to ability or based on CN criteria. The results show that this method is quite effective, efficient and relatively easy to use in determining insurance products that meet the criteria or according to CN's economic capabilities

Analisa Kinerja Keuangan Kppri Dengan Pendekatan Laporan Keuangan Pada Kppri

Economic development in today is very fast, this can be seen from the changes that are happening now, these changes are the impact of economic globalization which is none other than trade liberalization and free market economic investment, as a result of that free market is likely to occur competition free tight, so the strong party and high purchasing power will dominate the market and become a winner in the competition and vice versa, the weak party with low purchasing power will automatically be excluded from the scope of competition and will be a passive audience in trading. From the ratio analysis of financial statements. KPRI can be seen in comparing the number of assets with the ability to meet short-term obligations turned out to be less good because it is still far from industry standards, and in the ability to pay all financial obligations both short-term and long-term are also still liquid, but in obtaining income net every year, in 2016-2020 KPRI was considered able to obtain high profits. Because in each year the income earned is increasing. And in generating a net profit KPRI is considered sufficient because it is measured by its effectiveness in investing its capital throughout all assets. Based on the results of KPRI performance measurements using the concept of ratio analysis of financial statements that have been carried out, it results in a satisfactory total performance measurement. Strategic planning that has been made is carried out to the fullest so that the cooperative's performance is in accordance with the vision and mission of KPRI.

A tandem-column extraction chromatography for Nd separation: minimizing mass-independent isotope fractionation for ultrahigh-precision Nd isotope-ratio analysis

The short-lived 146Sm-142Nd isotope system traces key early planetary differentiation processes that occurred during the first 500 million-years of solar system history. The variations of 142Nd/144Nd in terrestrial samples, typically...