scholarly journals Scientometric analysis applied to the water treatment with activated carbon

2020 ◽  
Vol 42 ◽  
pp. e27
Author(s):  
Kelly Kathleen Almeida Heylmann ◽  
Bruno Vasconcellos Lopes ◽  
Carolina Faccio Demarco ◽  
Thays França Afonso ◽  
Tito Roberto Sant'Anna Cadaval Júnior ◽  
...  

The current moment requires the development of new technologies that can provide alternatives to conventional treatment and that efficiently remove pollutants that are difficult to treat. Activated carbon has been highlighted as low cost material that can be used as adsorbents for the removal of contaminants. Thus, the aim of the present study was to analyse the relevant literature related to the production of activated carbon for the treatment of water. For the study, there were found 4,182 relevant studies in the database of the Web of Science and from these restrictions and readings were obtained 27 articles. The information obtained was: i - temporal evolution of publications, ii - distribution of articles by periodicals, iii - spatial distribution, iv - precursor material, v - activation technology, vi - pollutants and vii - treatment efficiency. Results show that the activated carbon produced from corn and industrial ash residues are good adsorbents. Dyes, heavy metals and phenols were the most studied pollutants, and had the higher treatment efficiency values. The approach of the present study allows to identify the main points of this new technology and it helps to support new researches and applications

2019 ◽  
Vol 271 ◽  
pp. 01010 ◽  
Author(s):  
Dilendra Maharjan ◽  
Marlon Agüero ◽  
Chris Lippitt ◽  
Fernando Moreu

Infrastructure is the backbone of the US economy and a necessary input to every economic output [1]. The cost of infrastructure maintenance and management demands significant expense for government and private companies. Infrastructure owners want to increase efficiency and improve their bottom-line from existing infrastructure rather than building new ones [2]. One of the significant challenges for the engineering community has been adopting new technologies such as low-cost wireless smart sensors, augmented reality, Unmanned Aerial System (UAS)-based Structural Health Monitoring (SHM). To receive first-hand insight from infrastructure owners, industry professionals and researchers, a workshop entitled ‘Infrastructure, Maintenance and Management Using New Technology’ was conducted in Fort Worth, Texas. In this paper the findings from the workshop are discussed. Stakeholders highlighted safety of the bridge inspectors as the priority in the maintenance and management work. Based on the findings of this workshop it now clear that adopting new technologies leads to higher safety for field inspectors. Key aspects include importance of new technologies for obtaining actionable data for maintenance and management, owner’s perspectives on development of future technologies, current research progress and challenges faced by infrastructure industry in implementing new technologies are presented.


2021 ◽  
Author(s):  
T. V. Pisarenko ◽  
◽  
T. K. Kvasha ◽  
T. V. Havrys ◽  
O. F. Paladchenko ◽  
...  

Today, the scientific and technological sphere has become the main arena of competition between countries in the world, and the use of new technologies, especially in the field of armaments, is considered as one of the most important levers of geopolitics. Such technologies are a key for expanding the capabilities of the state's defense capabilities and achieving national security goals, priory to military and military-economic, as well as scientific and technological security. Today, the identification of scientific and technological key areas of military development is used to determine the priorities of scientific and technological development and military-technical policy which is crucial for the process of creating promising models of armaments and military equipment. The introduction of the latest technologies in the military is difficult to imagine without the use of computer and other telecommunications equipment, artificial intelligence technology, military robotics, quantum and space technology, 3D printing and biotechnology. Although they all are already used in the military and security spheres, still monitoring innovation and new technologies in the military are important for understanding not only future wars, but also global security. This study reviews global technological trends based on the analysis of publications of foreign consulting agencies, international organizations and forecasting and analytical research conducted by the author's methodology. The data upon perspective directions of development of scientific and technological researches in the military sphere on the basis of the analysis of publishing activity of a DB of Web of Science and a DB of patents of Derwent Innovations is provided. In particular, the range of new directions of technological development of the military sphere has been expanded and clarified not only in general, but also specified by types and kinds of troops. This analysis allowed us to determine that the areas of development claimed by international organizations and consulting agencies correlate with the areas identified by the authors of the study on the basis of scientometric and patent analysis. At the same time, the forecasted promising areas of research, determined by scientometric analysis of Web of Science publications, more or less completely coincide with the forecasts of NATO, RAND Corporation.


2019 ◽  
Vol 9 (21) ◽  
pp. 4666 ◽  
Author(s):  
Gennaro Vessio

Studying the effects of neurodegeneration on handwriting has emerged as an interdisciplinary research topic and has attracted considerable interest from psychologists to neuroscientists and from physicians to computer scientists. The complexity of handwriting, in fact, appears to be sensitive to age-related impairments in cognitive functioning; thus, analyzing handwriting in elderly people may facilitate the diagnosis and monitoring of these impairments. A large body of knowledge has been collected in the last thirty years thanks to the advent of new technologies which allow researchers to investigate not only the static characteristics of handwriting but also especially the dynamic aspects of the handwriting process. The present paper aims at providing an overview of the most relevant literature investigating the application of dynamic handwriting analysis in neurodegenerative disease assessment. The focus, in particular, is on Parkinon’s disease (PD) and Alzheimer’s disease (AD), as the two most widespread neurodegenerative disorders. More specifically, the studies taken into account are grouped in accordance with three main research questions: disease insight, disease monitoring, and disease diagnosis. The net result is that dynamic handwriting analysis is a powerful, noninvasive, and low-cost tool for real-time diagnosis and follow-up of PD and AD. In conclusion of the paper, open issues still demanding further research are highlighted.


Service industries contribute significantly to many developed and developing - economies. As their business activities expand rapidly, many service companies struggle to maintain customer’s satisfaction due to sluggish service response caused by resource shortages. Anticipating resource shortages and proffering solutions before they happen is an effective way of reducing the adverse effect on operations. However, this proactive approach is very expensive in terms of capacity and labor costs. Many companies fall into productivity conundrum as they fail to find sufficient strong arguments to justify the cost of a new technology yet cannot afford not to invest in new technologies to match up with competitors. The question is whether there is an innovative solution to maximally utilize available resources and drastically reduce the effect that the shortages of resources may cause yet achieving high level of service quality at a low cost. This work demonstrates with a practical analysis of a trolley tracking system we designed and deployed at Hong Kong International Airport (HKIA) on how video analytics helps achieve management’s goal of satisfying customer’s needs via real-time detection and prevention of problems they may encounter during the service consumption process using existing video technology rather than adopting new technologies. This paper presents the integration of commercial video surveillance system with deep learning algorithms for video analytics. We show that our system can provide accurate decision when faced with total or partial occlusion with high accuracy and it significantly improves daily operation. It is envisioned that this work will heighten the appreciation of integrative technologies for resource management within the service industries and as a measure for real-time customer assistance.


Service industries contribute significantly to many developed and developing - economies. As their business activities expand rapidly, many service companies struggle to maintain customer’s satisfaction due to sluggish service response caused by resource shortages. Anticipating resource shortages and proffering solutions before they happen is an effective way of reducing the adverse effect on operations. However, this proactive approach is very expensive in terms of capacity and labor costs. Many companies fall into productivity conundrum as they fail to find sufficient strong arguments to justify the cost of a new technology yet cannot afford not to invest in new technologies to match up with competitors. The question is whether there is an innovative solution to maximally utilize available resources and drastically reduce the effect that the shortages of resources may cause yet achieving high level of service quality at a low cost. This work demonstrates with a practical analysis of a trolley tracking system we designed and deployed at Hong Kong International Airport (HKIA) on how video analytics helps achieve management’s goal of satisfying customer’s needs via real-time detection and prevention of problems they may encounter during the service consumption process using existing video technology rather than adopting new technologies. This paper presents the integration of commercial video surveillance system with deep learning algorithms for video analytics. We show that our system can provide accurate decision when faced with total or partial occlusion with high accuracy and it significantly improves daily operation. It is envisioned that this work will heighten the appreciation of integrative technologies for resource management within the service industries and as a measure for real-time customer assistance.


2020 ◽  
Author(s):  
Muhammad Ayaz Sr ◽  
Muhammad Fermi Pasha 2nd ◽  
Mohammed Y. Alzahrani 3rd ◽  
Rahmat Budiarto 4th ◽  
Deris Stiawan 5th

BACKGROUND The information technology has transferred the paper-based healthcare sector into the digital form, where the patient information transfers electronically from one place to another. However, there are still a number of challenges and issues present in this domain because of the lack of proper standards, growth of new technologies (mobile, tablets, ubiquitous computing, etc.), and healthcare providers, who are reluctant to share patient information. Accordingly, a solid systematic literature review was conducted to understand the use of this new technology in the healthcare sector. The main purpose was to explore the relevant literature on Fast Health Interoperability Resources (FHIR) in the healthcare domain and identifies its implementation, exciting challenges, and open questions raised by us in healthcare regarding FHIR. To the best of the our knowledge, there was a lack of comprehensive systemic literature review that could focus on FHIR-based Electronic Health Record (EHR). In addition, FHIR was found to be the latest standard, but it was in the infancy stage of its development. Therefore, it was anticipated that the study under review was a hot area for us and that there were huge research opportunities in it. OBJECTIVE This paper aims mainly to explore the works in FHIR and performs a systematic review of the literatures surrounding FHIR, challenges to FHIR, implementation of FHIR, opportunities, and future FHIR applications. METHODS In January 2020, we searched articles published during January 2012 to December 2019 via all major digital databases in the field of computer science and healthcare, including ACM, IEEE Xplore, Springer, Google Scholar, PubMed, and ScienceDirect. Consequently, an analysis was carried out of the systematic literature review. RESULTS As a result, we reviewed more than 8000 scientific studies published in the last eight years, selected the most significant approaches, and thoroughly surveyed the health care field related to FHIR. We identified open questions, challenges, implementations models, used resources, beneficiary applications, data migration approaches, and goals of the FHIR. CONCLUSIONS Ultimately, the literature analysis necessitated the need and role of FHIR in the healthcare domain in the near future.


2015 ◽  
Vol 76 (5) ◽  
Author(s):  
Zalilah Murni Yunus ◽  
Norzila Othman ◽  
R. Hamdan ◽  
N. N. Ruslan

The role of waste materials in producing activated carbon (AC) used in adsorption has been identified as an alternative to substitute commercial expensive wooden starting materials. The present study has chosen honeydew peel as an alternative starting material in activated carbon production because of it’s low cost, availabality and incurs minimal cost for waste management. The production involved chemical impregnation using 20% diluted phosphoric acid (H3PO4) prior to activation. To optimize the activation method, the effect of different activation temperatures (470°C - 550°C) on the physicochemical properties of the AC was studied. The results showed that the AC carbonized at 490°C possessed 942 mg/g iodine number, 997 m2/g surface area SBET and 0.56 ml/g total pore volume. FESEM images showed a high pore development as the activation temperature increased. FTIR indicated the presence of –OH, C=O bond in carboxylic acids, ketones, aldehydes, lactones and ester functional groups on the AC. The experimental results presented the potential use of honeydew peel as a precursor material in the preparation of inexpensive adsorbent for wastewater remediation.


2013 ◽  
Vol 671-674 ◽  
pp. 2011-2015
Author(s):  
Chuan Qin Yao ◽  
Xue Bai ◽  
Rong Bai ◽  
Chao Wang ◽  
Hai Bing Ma

Based on the project on F2-4 plot of Pearl River New Town in Guangzhou City, manual plastering protective layer construction technology of exterior mesh for super cross-section CFST cylinder is fully studied in this paper, the proposed new technologies of outer tube mesh and dry mesh are qualified with fast construction, energy conservation and environmental protection, low cost for later maintenance and so on. The new technology has good prospects for development and can be promoted widely.


MRS Bulletin ◽  
1997 ◽  
Vol 22 (10) ◽  
pp. 5-6
Author(s):  
Horst D. Simon

Recent events in the high-performance computing industry have concerned scientists and the general public regarding a crisis or a lack of leadership in the field. That concern is understandable considering the industry's history from 1993 to 1996. Cray Research, the historic leader in supercomputing technology, was unable to survive financially as an independent company and was acquired by Silicon Graphics. Two ambitious new companies that introduced new technologies in the late 1980s and early 1990s—Thinking Machines and Kendall Square Research—were commercial failures and went out of business. And Intel, which introduced its Paragon supercomputer in 1994, discontinued production only two years later.During the same time frame, scientists who had finished the laborious task of writing scientific codes to run on vector parallel supercomputers learned that those codes would have to be rewritten if they were to run on the next-generation, highly parallel architecture. Scientists who are not yet involved in high-performance computing are understandably hesitant about committing their time and energy to such an apparently unstable enterprise.However, beneath the commercial chaos of the last several years, a technological revolution has been occurring. The good news is that the revolution is over, leading to five to ten years of predictable stability, steady improvements in system performance, and increased productivity for scientific applications. It is time for scientists who were sitting on the fence to jump in and reap the benefits of the new technology.


1999 ◽  
Vol 40 (4-5) ◽  
pp. 137-144 ◽  
Author(s):  
K. Miserez ◽  
S. Philips ◽  
W. Verstraete

A number of new technologies for the advanced treatment of wastewater have recently been developed. The oxidative cometabolic transformation by methanotrophs and by nitrifiers represent new approaches in relation to organic carbon. The Biological Activated Carbon Oxidative Filters characterized by thin biofilms are also promising in that respect. Moreover, implementing genetically modified organisms with improved catabolic potential in advanced water treatment comes into perspective. For very refractory effluents chemical support techniques, like e.g. strong chemical oxidation, can be lined up with advanced biology.


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