scholarly journals A Comprehensive Review on Natural Fibers: Technological and Socio-Economical Aspects

Polymers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 4280
Author(s):  
Azizatul Karimah ◽  
Muhammad Rasyidur Ridho ◽  
Sasa Sofyan Munawar ◽  
Ismadi ◽  
Yusup Amin ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Natural Fiber ◽  
Integrated Management ◽  
Natural Fibers ◽  
Comprehensive Review ◽  
Integrated Management System ◽  
Military Vehicles ◽  
Technological Processing ◽  
The Government ◽  
Basic Characteristics

Asian countries have abundant resources of natural fibers, but unfortunately, they have not been optimally utilized. The facts showed that from 2014 to 2020, there was a shortfall in meeting national demand of over USD 2.75 million per year. Therefore, in order to develop the utilization and improve the economic potential as well as the sustainability of natural fibers, a comprehensive review is required. The study aimed to demonstrate the availability, technological processing, and socio-economical aspects of natural fibers. Although many studies have been conducted on this material, it is necessary to revisit their potential from those perspectives to maximize their use. The renewability and biodegradability of natural fiber are part of the fascinating properties that lead to their prospective use in automotive, aerospace industries, structural and building constructions, bio packaging, textiles, biomedical applications, and military vehicles. To increase the range of applications, relevant technologies in conjunction with social approaches are very important. Hence, in the future, the utilization can be expanded in many fields by considering the basic characteristics and appropriate technologies of the natural fibers. Selecting the most prospective natural fiber for creating national products can be assisted by providing an integrated management system from a digitalized information on potential and related technological approaches. To make it happens, collaborations between stakeholders from the national R&D agency, the government as policy maker, and academic institutions to develop national bioproducts based on domestic innovation in order to move the circular economy forward are essential.

Factors affecting hole quality during drilling of natural fiber-reinforced composites: A comprehensive review

2020 ◽  
pp. 073168442097065
Author(s):  
Muhammad Helmi Abdul Kudus ◽  
Mani Maran Ratnam ◽  
Hazizan Md. Akil
Keyword(s):  
Natural Fiber ◽  
Natural Fibers ◽  
Fiber Reinforced ◽  
Hole Quality ◽  
Composite Manufacturing ◽  
Comprehensive Review ◽  
Factors Affecting ◽  
Practical Applications ◽  
Fiber Reinforced Polymer Composites ◽  
Major Factors

In recent years, with greater emphasis on environmental and sustainability aspects of engineering materials, natural fiber-reinforced polymer composites (NFRPCs) have gained significance in practical applications because of their numerous advantages. Although many researchers have developed NFRPCs using various types of natural fibers and matrix materials, in real-world applications of NFRPCs, secondary operations, such as milling and drilling, are necessary to complete the components or parts assembly. Because the drilling of NFRPCs is different from drilling of metals, there are concentration of studies interested in the aspects of drillability of NFRPCs in order to assess and understand issues related to drilled hole quality in NFRPCs. In this paper, a comprehensive review of factors that affect the drilled hole quality in NFRPCs is presented. Past researches where correlation between the manufacturing methods of NFRPCs and drillability of the composites are reported are reviewed in-depth. The novelty of this review is that it identifies the major factors that affect the quality of the drilled features from a composite manufacturing perspective and provides recommendations for the best NFRPCs manufacturing process to produce drill-friendly composites. The major factors were classified into composite manufacturing factors and drilling parameters factors.

Experimental investigations on natural fiber embedded additive manufacturing-based biodegradable structures for biomedical applications

2018 ◽  
Vol 24 (7) ◽  
pp. 1221-1234 ◽  
Author(s):  
Amarveer Singh Mangat ◽  
Sunpreet Singh ◽  
Munish Gupta ◽  
Ravinder Sharma
Keyword(s):  
Additive Manufacturing ◽  
Biomedical Applications ◽  
Parametric Optimization ◽  
Natural Fiber ◽  
Matrix Material ◽  
Natural Fibers ◽  
Three Dimensional ◽  
Optimum Level ◽  
Content Type ◽  
Input Parameters

Purpose The purpose of this paper is to explore and investigate the mechanical as well as bacterial characteristics of chemically treated waste natural fiber inserted three-dimensional structures (NFi3DS) produced with fused filament deposition (FFD) for biomedical applications. Design/methodology/approach In this work, a novel approach has been used for developing the customized porous structures particularly for scaffold applications. Initially, raw animal fibers were collected, and thereafter, the chemical treatment has been performed for making their wise utility in biomedical structures. For this purpose, silk fiber and sheep wool fibers were used as laminations, whereas polylactic acid was used as matrix material. A low-cost desktop time additive manufacturing setup was used for making the customized and porous parts by considering type of fiber, number of laminates, infill density and raster angle as input parameters. Findings The results obtained after using design of experimental technique highlighted that output characteristics (such as dimensional accuracy, hardness, three-point bending strength and bacterial test) are influenced by input parameters, as reported in the obtained signal/noise plots and analysis of variance. Optimum level of input parameters has also been found through Taguchi L9 orthogonal array, for single parametric optimization, and teaching learning-based algorithm and particle swarm optimization, for multiple parametric optimization. Overall, the results of the studies supported the use of embedded structures for scaffold-based biomedical applications. Research limitations/implications Presently, NFi3DS were produced by using the hand-lay-based manual approach that affected the uniform insert’s distribution and thickness. It is advised to use the automatic fiber placement system, synced with a three-dimensional printer, to achieve greater geometrical precision. Practical implications As both natural fibers and polymer matrix used in this work are well established for their biological properties, hence the methodology explored in this work will help the practitioners/academicians in developing highly compatible scaffold structures. Social implications The present work defines a new practice where the researchers can use natural fibers to reduce the cost associated with fabrication of customized scaffold prints. Originality/value The development of natural fiber embedded FFD-based structures is not yet explored for their feasibility in biomedical applications.

scholarly journals Pengelolaan sampah botol plastik air mineral di Kota Sorong guna menurunkan tingkat pencemaran lingkungan

Cassowary ◽  
2019 ◽  
Vol 2 (1) ◽  
pp. 68-85
Author(s):  
Julian Kelly Kambu ◽  
Eko Agus Martanto ◽  
Marlyn Lekitoo
Keyword(s):  
Waste Management ◽  
Environmental Pollution ◽  
Management System ◽  
Mineral Water ◽  
Integrated Management ◽  
Integrated Management System ◽  
Plastic Bottle ◽  
Waste Production ◽  
The Government ◽  
The City

Sorong is one of the most advanced and most populous cities in the province of West Papua, with a population of 2016 reaching 232,833 people and a population growth rate of 3.21 percent per year (BPS, 2016). As the most populous city, of course, the problem of waste becomes a significant threat, especially related to the increasing volume of waste production both from households and businesses and also the tendency to dispose of waste improperly that results in environmental pollution. The purpose of this study was to determine the extent of environmental pollution due to plastic waste in the City of Sorong, then look further at the management of mineral water plastic bottles, and determine what factors influence the amount of plastic bottle waste in the City of Sorong. The analytical method used in this research is descriptive qualitative analysis. Based on the results of the study it can be seen that the waste management process is carried out by several parties, among others: carried out by the Government using an integrated management system, then by the community with an individual management system, and by the private sector through the Sorong Raya Garbage Bank. Factors that influence the amount of plastic bottle waste include: The level of community / business actors' knowledge about waste, their attitude about waste management, their behavior in managing waste, and the activities of government administrators such as studies on waste, socialization of facilities and regulations, and the adequacy of the APBD budget. and also external participation.

scholarly journals Biofunctionalization of Natural Fiber-Reinforced Biocomposites for Biomedical Applications

Biomolecules ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 148 ◽  
Author(s):  
Tânia D. Tavares ◽  
Joana C. Antunes ◽  
Fernando Ferreira ◽  
Helena P. Felgueiras
Keyword(s):  
Renewable Resources ◽  
Biomedical Applications ◽  
Natural Fiber ◽  
Low Cost ◽  
Natural Fibers ◽  
Synthetic Polymers ◽  
Separation Processes ◽  
Extraction And Separation ◽  
Biomedical Device ◽  
Biomedical Field

In the last ten years, environmental consciousness has increased worldwide, leading to the development of eco-friendly materials to replace synthetic ones. Natural fibers are extracted from renewable resources at low cost. Their combination with synthetic polymers as reinforcement materials has been an important step forward in that direction. The sustainability and excellent physical and biological (e.g., biocompatibility, antimicrobial activity) properties of these biocomposites have extended their application to the biomedical field. This paper offers a detailed overview of the extraction and separation processes applied to natural fibers and their posterior chemical and physical modifications for biocomposite fabrication. Because of the requirements for biomedical device production, specialized biomolecules are currently being incorporated onto these biocomposites. From antibiotics to peptides and plant extracts, to name a few, this review explores their impact on the final biocomposite product, in light of their individual or combined effect, and analyzes the most recurrent strategies for biomolecule immobilization.

scholarly journals Improving Puskesmas Services Through Integrated Management Innovation System in Ngawi and Sumenep Regency

2021 ◽  
Vol 1 (3) ◽  
pp. 31-39
Author(s):  
Rosidah Rosidah
Keyword(s):  
Health Center ◽  
Public Services ◽  
Local Community ◽  
Integrated Management ◽  
Innovation System ◽  
Community Satisfaction ◽  
Integrated Management System ◽  
Innovative System ◽  
The Government ◽  
Made In

This study discusses the innovations made in order to overcome problems that arise in innovating in public services such as Puskesmas. This study aims to determine the extent to which innovations carried out by the government with the support of the community can be successful and how their impact on the region, especially Ngawi Regency and Sumenep Regency in improving public services for the local community. This study used qualitative research methods. Data collection is carried out through searching various sources which are then processed and described in the form of narratives according to data needs. The population in this study is an area that has made innovations in order to improve public services, especially Puskesmas. While the research subject is in Ngawi Regency named ADA PUMA (Submit Deed From Public Health Center, District, or RuMah) Kabupaten Ngawi and Kabupaten Sumenep named the innovation “Si Mantap Puas” (Integrated Management System for Community Satisfaction) Guluk Guluk Health Center. This study shows that the innovations carried out by the government supported by the local community have succeeded in creating an innovative system in order to improve public services at the Puskesmas. The two innovations created by Ngawi Regency and Sumenep Regency have succeeded in facilitating public services at the Puskesmas in their respective regions, which of course is directly proportional to community satisfaction with the services provided. This study shows that the innovations carried out by the government supported by the local community have succeeded in creating an innovative system in order to improve public services at the Puskesmas. The two innovations created by Ngawi Regency and Sumenep Regency have succeeded in facilitating public services at the Puskesmas in their respective regions, which of course is directly proportional to community satisfaction with the services provided. This study shows that the innovations carried out by the government supported by the local community have succeeded in creating an innovative system in order to improve public services at the Puskesmas. The two innovations created by Ngawi Regency and Sumenep Regency have succeeded in facilitating public services at the Puskesmas in their respective regions, which of course is directly proportional to community satisfaction with the services provided.

scholarly journals The Indonesian Executives Perspective of CSR Practices

2014 ◽  
Vol 8 (3) ◽  
pp. 171 ◽  
Author(s):  
Hasan Fauzi
Keyword(s):  
Government Regulation ◽  
Integrated Management ◽  
Market Mechanism ◽  
Public Image ◽  
Structured Interviews ◽  
Good Relationship ◽  
Integrated Management System ◽  
Implementation Guideline ◽  
The Government ◽  
Corporate Social

The objective of this study is to investigate the CSR (Corporate Social Responsibility) practices after the issuance of the government regulation as the implementation guideline of the CSR as stipulated in the law no.40/2007 through business players’ interviews. Using the semi structured  interviews with Indonesian executives/informants of Indonesian companies, this study found that CSR practices have been viewed as philanthropic activities of companies with all the consequences that follow: shareholder as the most important stakeholder, reporting CSR practice as means to have public image and no need to have any standard to prepare CSR practice reporting. Given the findings, there is a need to redefine CSR based on the intention to maintain good relationship with stakeholders and to have the integrated management system to help management well interact with them in market and non- market mechanism.

Energy Management of Electromechanical Systems on the Board of a Ship

2020 ◽  
Vol 26 (3) ◽  
pp. 14-19
Author(s):  
Laurențiu Bogdan Asalomia ◽  
Gheorghe Samoilescu
Keyword(s):  
Energy Management ◽  
Management System ◽  
Integrated Management ◽  
Integrated Management System ◽  
Management Actions ◽  
Energy Flows ◽  
Reduce Emissions ◽  
Technical Solutions ◽  
Productive Time

AbstractThe paper analyzes, starting from the Integrated Management System, the role of automation, the role of the officer and the role of the Energy Management System on board the ship. The implementation of an EnMS establishes the structure and discipline of identifying energy flows, implementing management actions and, finally, applying technical solutions, which significantly reduce energy costs, reduce non-productive time in production, and reduce emissions. of Greenhouse Gases in the environment. The steps to be highlighted in the realization of energy management are analyzed.

New approaches to improving enterprise management systems using international models and standards in a digital transformation environment

2020 ◽  
pp. 24-29
Author(s):  
V.V. Silaeva ◽  
◽  
V.P. Semenov ◽  
Keyword(s):  
Management System ◽  
Integrated Management ◽  
Digital Transformation ◽  
International Standards ◽  
System Model ◽  
Management Systems ◽  
Enterprise Management ◽  
Integrated Management System ◽  
New Approaches ◽  
Iso 31000

The relevance of creating integrated management systems for enterprises in a digital transformation environment is proved. New approaches to improving the management system in accordance with the new European excellence model (EFQM 2020) and international standards for achieving sustainable success and risk management are described. Approach to the development of integrated management system model based on the new EFQM 2020 model and international standards such as ISO 9004:2018 and ISO 31000:2018 is offered.

Coral reef condition in several dive points around Bunaken Island, North Sulawesi

2014 ◽  
pp. 44
Author(s):  
Robert Towoliu
Keyword(s):  
Coral Reef ◽  
Coral Cover ◽  
Integrated Management ◽  
Good Condition ◽  
Live Coral ◽  
Core Zone ◽  
Integrated Management System ◽  
North Sulawesi ◽  
Live Coral Cover ◽  
Reef Condition

In order to know the coral reef conditions at several diving points around Bunaken Island, three dive locations (Ron’s point, Lekuan, and Tawara) were chosen as representative locations receiving pressures from snorkeling and SCUBA diving activities, while  core zone was representative of location for  no diving and fishing activities.  Results showed that location with diving activities had live coral cover  ranging from 16.89% to 45.78% at 3 and 10m depths, with condition range of bad to moderate, while the location for no diving and fishing activities (core zone) had live coral cover of 55.03% at 3m and 58.15% at 10m, respectively,  with good condition category.  The present study indicated that the diving activities have affected the coral reef condition, so that a sustainable integrated management system is needed to use the marine ecotourism potency without degrading the coral reef condition in Bunaken Island. Untuk mengetahui kondisi terumbu karang di beberapa lokasi penyelaman di Pulau Bunaken, tiga lokasi penyelaman(Ron’s point, Lekuan, dan Tawara) dipilih mewakili lokasi dengan tekanan aktivitas penyelaman snorkeling maupun SCUBA, sedangkan satu lokasi lainnya yaitu zona inti dipilih mewakili lokasi tanpa aktivitas penyelaman maupun aktivitas penangkapan ikan.  Hasil penelitian ini memperlihatkan bahwa lokasi dengan tekanan aktivitas penyelaman memiliki prosentase tutupan karang batu/hidup berkisar antara 16,89% - 45,78% pada kedalaman 3 dan 10m, dengan kategori kondisi terumbu karang buruk sampai cukup, sedangkan pada lokasi yang tidak memiliki aktivitas penyelaman memiliki prosentase tutupan karang batu/hidup sebesar 53,03% pada 3m dan 58,15% pada 10m dengan kategori kondisi terumbu karang adalah baik.  Hasil penelitian ini mengindikasikan bahwa aktivitas penyelaman snorkeling maupun SCUBA berdampak pada kondisi terumbu karang di Pulau Bunaken, sehingga sangat diperlukan system pengelolaan yang terpadu dan berkesinambungan dalam memanfaatkan secara maksimal potensi ekowisata bahari tanpa merusak ekosistem terumbu karang di Pulau Bunaken.

Information in United States Patents on works related to ‘Natural Fibers’: 2000-2018

2019 ◽  
Vol 12 (1) ◽  
pp. 4-76 ◽  
Author(s):  
Krittirash Yorseng ◽  
Mavinkere R. Sanjay ◽  
Jiratti Tengsuthiwat ◽  
Harikrishnan Pulikkalparambil ◽  
Jyotishkumar Parameswaranpillai ◽  
...  
Keyword(s):  
United States ◽  
Composite Materials ◽  
Natural Fiber ◽  
Comprehensive Evaluation ◽  
Natural Fibers ◽  
Fiber Reinforced Composites ◽  
Reinforced Composites ◽  
Fiber Reinforced ◽  
Macro Scale ◽  
Structural Applications

Background: This era has seen outstanding achievements in materials science through the advances in natural fiber-based composites. The new environmentally friendly and sustainability concerns have imposed the chemists, biologists, researchers, engineers, and scientists to discover the engineering and structural applications of natural fiber reinforced composites. Objective: To present a comprehensive evaluation of information from 2000 to 2018 in United States patents in the field of natural fibers and their composite materials. Methods: The patent data have been taken from the external links of US patents such as IFI CLAIMS Patent Services, USPTO, USPTO Assignment, Espacenet, Global Dossier, and Discuss. Results: The present world scenario demands the usage of natural fibers from agricultural and forest byproducts as a reinforcement material for fiber reinforced composites. Natural fibers can be easily extracted from plants and animals. Recently natural fiber in nanoscale is preferred over micro and macro scale fibers due to its superior thermo-mechanical properties. However, the choice of macro, micro, and nanofibers depends on their applications. Conclusion: This document presents a comprehensive evaluation of information from 2000 to 2018 in United States patents in the field of natural fibers and their composite materials.

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