A comprehensive review on dielectric composites: Classification of dielectric composites

2022 ◽  
Vol 157 ◽  
pp. 112075
Author(s):  
Hari Prashanth Palani Velayuda Shanmugasundram ◽  
Elammaran Jayamani ◽  
Kok Heng Soon
Keyword(s):  
Comprehensive Review

scholarly journals A comprehensive review of sucker rod pumps’ components, diagnostics, mathematical models, and common failures and mitigations

2021 ◽  
Author(s):  
Sherif Fakher ◽  
Abdelaziz Khlaifat ◽  
M. Enamul Hossain ◽  
Hashim Nameer
Keyword(s):  
Mathematical Models ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Holistic View ◽  
Comprehensive Review ◽  
Artificial Lift ◽  
Sucker Rod ◽  
Sucker Rod Pump

AbstractIn many oil reservoirs worldwide, the downhole pressure does not have the ability to lift the produced fluids to the surface. In order to produce these fluids, pumps are used to artificially lift the fluids; this method is referred to as artificial lift. More than seventy percent of all currently producing oil wells are being produced by artificial lift methods. One of the most applied artificial lift methods is sucker rod pump. Sucker rod pumps are considered a well-established technology in the oil and gas industry and thus are easy to apply, very common worldwide, and low in capital and operational costs. Many advancements in technology have been applied to improve sucker rod pumps performance, applicability range, and diagnostics. With these advancements, it is important to be able to constantly provide an updated review and guide to the utilization of the sucker rod pumps. This research provides an updated comprehensive review of sucker rod pumps components, diagnostics methods, mathematical models, and common failures experienced in the field and how to prevent and mitigate these failures. Based on the review conducted, a new classification of all the methods that can fall under the sucker rod pump technology based on newly introduced sucker rod pump methods in the industry has been introduced. Several field cases studies from wells worldwide are also discussed in this research to highlight some of the main features of sucker rod pumps. Finally, the advantages and limitations of sucker rod pumps are mentioned based on the updated review. The findings of this study can help increase the understanding of the different sucker rod pumps and provide a holistic view of the beam rod pump and its properties and modeling.

A Study on Technology-LED Solutions for Fruit Grading to Address Post-Harvest Handling Issues of Horticultural Crops

2020 ◽  
pp. 203-221
Author(s):  
Arun Kumar R. ◽  
Vijay S. Rajpurohit ◽  
Sandeep Kautish
Keyword(s):  
Quality Assessment ◽  
Value Addition ◽  
Research Gaps ◽  
Major Phase ◽  
Comprehensive Review ◽  
Post Harvest ◽  
Horticultural Crops ◽  
Fruit Grading ◽  
Labor Requirements

The reduction of post-harvest losses and value addition of the horticultural corps has attained the higher priority of the current research works. Grading is the major phase in post-harvest handling. Presently grading is done on the basis of observation and through experience. Various drawbacks associated with such manual grading are subjectivity, tediousness, labor requirements, availability, inconsistency, etc. Such problems can be alleviated by incorporating automation in the process. Researchers round the clock are working towards the development of technology-driven solutions in order to grade/sort/classify various agricultural and horticultural produce. With the motto of helping the researchers in the field of grading and quality assessment of fruits and other horticulture products, the present work endeavors the following major contributions: (1) a precise and comprehensive review on technology-driven solutions for grading/sorting/classification of fruits, (2) major research gaps addressed by the researchers, and (3) research gaps to be addressed.

scholarly journals Facial Pain: A Comprehensive Review and Proposal for a Pragmatic Diagnostic Approach

2020 ◽  
Vol 83 (1) ◽  
pp. 5-16 ◽  
Author(s):  
Laura Van Deun ◽  
Muriel de Witte ◽  
Thaïs Goessens ◽  
Stijn Halewyck ◽  
Marie-Christine Ketelaer ◽  
...  
Keyword(s):  
Internal Medicine ◽  
Classification System ◽  
Facial Pain ◽  
Correct Diagnosis ◽  
Headache Disorders ◽  
Comprehensive Review ◽  
Pain Condition ◽  
Throat Pain ◽  
Generic Framework

Background: Facial pain, alone or combined with other symptoms, is a frequent complaint. Moreover, it is a symptom situated at, more than any other pain condition, a crosspoint where several disciplines meet, for example, dentists; manual therapists; ophthalmologists; psychologists; and ear-nose-throat, pain, and internal medicine physicians besides neurologists and neurosurgeons. Recently, a new version of the most widely used classification system among neurologists for headache and facial pain, the International Classification of Headache Disorders, has been published. Objective: The aims of this study were to provide an overview of the most prevalent etiologies of facial pain and to provide a generic framework for the neurologist on how to manage patients presenting with facial pain. Methods: An overview of the different etiologies of facial pain is provided from the viewpoint of the respective clinical specialties that are confronted with facial pain. Key message: Caregivers should “think outside their own box” and refer to other disciplines when indicated. If not, a correct diagnosis can be delayed and unnecessary treatments might be given. The presented framework is aimed at excluding life- or organ-threatening diseases, providing several clinical clues and indications for technical investigations, and ultimately leading to the correct diagnosis and/or referral to other disciplines.

scholarly journals BCR-ABL1–like B-Acute Lymphoblastic Leukemia/Lymphoma: A Comprehensive Review

2019 ◽  
Vol 144 (2) ◽  
pp. 150-155 ◽  
Author(s):  
Sarika Jain ◽  
Anu Abraham
Keyword(s):  
Acute Lymphoblastic Leukemia ◽  
World Health Organization ◽  
Kinase Inhibitors ◽  
Lymphoblastic Leukemia ◽  
World Health ◽  
Comprehensive Review ◽  
The World ◽  
Health Organization ◽  
Stimulating Factor

Context.— In the 2016 update of the World Health Organization (WHO) classification of hematopoietic neoplasms, BCR-ABL1–like B-acute lymphoblastic leukemia/lymphoma (B-ALL) is added as a new provisional entity that lacks the BCR-ABL1 translocation but shows a pattern of gene expression very similar to that seen in B-ALL with BCR-ABL1. Objective.— To review the kinase-activating alterations and the diagnostic approach for BCR-ABL1–like B-ALL. Data Sources.— We provide a comprehensive review of BCR-ABL1–like B-ALL based on recent literature and the 2016 update of the World Health Organization classification of hematopoietic neoplasms. Conclusions.— Several types of kinase-activating alterations (fusions or mutations) are identified in BCR-ABL1–like B-ALL. The main categories are alterations in the ABL class family of genes, encompassing ABL1, ABL2, PDGFRB, PDGFRA (rare), and colony-stimulating factor 1 receptor (CSF1R) fusions, or the JAK2 class family of genes, encompassing alterations in JAK2, CRLF2, EPOR, and other genes in this pathway. These alterations determine the sensitivity to tyrosine kinase inhibitors. As a wide variety of genomic alterations are included in this category, the diagnosis of BCR-ABL1–like B-ALL is extremely complex. Stepwise algorithms and comprehensive unbiased testing are the 2 ways to approach the diagnosis of BCR-ABL1–like B-ALL.

Successful Dental Implant Placement Surgeries With Buccal Bone Fenestrations

2015 ◽  
Vol 41 (1) ◽  
pp. 112-118 ◽  
Author(s):  
Liviu Steier ◽  
Gabriela Steier
Keyword(s):  
Treatment Outcomes ◽  
Dental Implant ◽  
Bone Plate ◽  
Comprehensive Review ◽  
Preventative Measures ◽  
Implant Placement ◽  
Success Criteria ◽  
Implant Treatment

This is the first comprehensive review of the classification, preventative measures, diagnosis, treatment methods, and determination of success criteria of buccal bone plate fenestrations (BPFs) secondary to posterior implant surgeries. The purpose of this review is to present and discuss the current literature from peer-reviewed journals, recent studies, and international implantology guidelines and to provide practitioners with guiding points to identify and understand whether BPFs are complications or accidents of implant surgeries. In addition, this review sets forth a detailed set of criteria for the evaluation and diagnosis of BPFs and for the subsequent classification of BPFs as either complications or accidents of posterior implant surgeries. From the literature analyzed, it is clear that BPFs are disqualified from the class of implant treatment failures because BPFs neither impair nor significantly delay treatment. A comprehensive outline of preventative measures and surgery aids to avoid fenestrating the buccal bone plate during implant placement, and a variety of repair methods are included in this review. Considerations of treatment outcomes and patient sensitivities are also included in this comprehensive review.

scholarly journals Prediction Markets – A literature review 2014

2014 ◽  
Vol 8 (2) ◽  
pp. 89-126 ◽  
Author(s):  
Christian Franz Horn ◽  
Bjoern Sven Ivens ◽  
Michael Ohneberg ◽  
Alexander Brem
Keyword(s):  
Literature Review ◽  
Classification Scheme ◽  
Prediction Markets ◽  
Comprehensive Review ◽  
Research Results ◽  
Law And Policy ◽  
Function Tests ◽  
Review 2014 ◽  
Number Of Publications

In recent years, Prediction Markets gained growing interest as a forecasting tool among researchers as well as practitioners, which resulted in an increasing number of publications. In order to track the latest development of research, comprising the extent and focus of research, this article provides a comprehensive review and classification of the literature related to the topic of Prediction Markets. Overall, 304 relevant articles, published in the timeframe from 2007 through 2013, were identified and assigned to a herein presented classification scheme, differentiating between descriptive works, articles of theoretical nature, application-oriented studies and articles dealing with the topic of law and policy. The analysis of the research results reveals that more than half of the literature pool deals with the application and actual function tests of Prediction Markets. The results are further compared to two previous works published by Zhao, Wagner and Chen (2008) and Tziralis and Tatsiopoulos (2007a). The article concludes with an extended bibliography section and may therefore serve as a guidance and basis for further research. (250 WORDS)

scholarly journals A revised scoring scheme for the classification of socio-economic status in Nigeria

2021 ◽  
Vol 48 (1) ◽  
pp. 26-33
Author(s):  
Michael O. Ibadin ◽  
George O. Akpede
Keyword(s):  
Socioeconomic Status ◽  
Public Service ◽  
Economic Status ◽  
Rater Reliability ◽  
Comprehensive Review ◽  
Socio Economic Status ◽  
The Past ◽  
The University

Background: Researchers in medicine and related fields in Nigeria have usually made recourse to the instrument developed by Olusanya et al and Oyedeji in the past three-and-a half decades for determination of socioeconomic status (SES). Beside the question of their age, however, these instruments were purposive and might no longer be suitable because of the changes in the parameters on which they were based.Objective: To develop a robust but generic scheme that takes into consideration the changes in the nation’s socioeconomic space in the succeeding three and a half decades.Methods: A detailed and comprehensive review of the extant schemes was undertaken with a view to identifying their inherent weaknesses. The latter were then factored into the design of a new scheme taking into consideration the emergent restructuring of career positions in the civil/public service as well as the place of private and informal sectors of the economy. The new scheme was validated at the University of Beninand Irrua Specialist Teaching Hospitals.Results: The new scheme had a remarkably high Inter-rater reliability (r = 0.947, p<0.001), raterre- rater reliability (r = 0.984, p <0.001) and % agreement (with modified Oyedeji’s tool as standard) of 67% (K coefficient = 0.47, r = 0.71, p<0.001)Conclusion/Recommendation: The new scheme could be a viable tool for the assessment of SES of families and individuals, which not only takes into consideration current realities of the nation’s economy, but also is readily adaptable to meet foreseeable changes.

Functions on quotient singularities

1987 ◽  
Vol 324 (1576) ◽  
pp. 1-45 ◽  
Keyword(s):  
Invariant Theory ◽  
Quotient Singularity ◽  
Two Dimensional ◽  
Comprehensive Review ◽  
Invariant Functions ◽  
Quotient Singularities ◽  
Free Actions

There are two main results: a determination of the modality of a generic function on any given two-dimensional quotient singularity and a listing of all the zero-modal functions. To achieve this, a comprehensive review of the invariant theory for free actions on C 2 is needed. The problem is put in context by a general discussion of classification of invariant functions, and several different extensions of the main results are indicated.

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