scholarly journals Electroreforming of Biomass for Value-Added Products

Micromachines ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1405
Author(s):  
Zi Iun Lai ◽  
Li Quan Lee ◽  
Hong Li
Keyword(s):  
Levulinic Acid ◽  
Fossil Fuels ◽  
Hydrogen Generation ◽  
Value Added ◽  
Future Research ◽  
Renewable Electricity ◽  
Recent Developments ◽  
Future Research Directions ◽  
Biomass Reforming

Humanity’s overreliance on fossil fuels for chemical and energy production has resulted in uncontrollable carbon emissions that have warranted widespread concern regarding global warming. To address this issue, there is a growing body of research on renewable resources such as biomass, of which cellulose is the most abundant type. In particular, the electrochemical reforming of biomass is especially promising, as it allows greater control over valorization processes and requires milder conditions. Driven by renewable electricity, electroreforming of biomass can be green and sustainable. Moreover, green hydrogen generation can be coupled to anodic biomass electroforming, which has attracted ever-increasing attention. The following review is a summary of recent developments related to electroreforming cellulose and its derivatives (glucose, hydroxymethylfurfural, levulinic acid). The electroreforming of biomass can be achieved on the anode of an electrochemical cell through electrooxidation, as well as on the cathode through electroreduction. Recent advances in the anodic electroreforming of cellulose and cellulose-derived glucose and 5-hydrooxylmethoylfurural (5-HMF) are first summarized. Then, the key achievements in the cathodic electroreforming of cellulose and cellulose-derived 5-HMF and levulinic acid are discussed. Afterward, the emerging research focusing on coupling hydrogen evolution with anodic biomass reforming for the cogeneration of green hydrogen fuel and value-added chemicals is reviewed. The final chapter of this paper provides our perspective on the challenges and future research directions of biomass electroreforming.

scholarly journals Biodiesel and Other Value-Added Products from Bio-Oil Obtained from Agrifood Waste

Processes ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 797
Author(s):  
Francisco José Sánchez-Borrego ◽  
Paloma Álvarez-Mateos ◽  
Juan F. García-Martín
Keyword(s):  
Fossil Fuels ◽  
Value Added ◽  
Extraction Methods ◽  
H2 Production ◽  
Future Research ◽  
Bio Oil ◽  
Recent Developments ◽  
Potential Applications ◽  
Pyrolysis Of Biomass ◽  
Promising Source

Bio-oil is a promising source of chemicals and renewable fuels. As the liquid phase obtained from the pyrolysis of biomass, the composition and amount of bio-oil generated depend not only on the type of the biomass but also on the conditions under which pyrolysis is performed. Most fossil fuels can be replaced by bio-oil-derived products. Thus, bio-oil can be used directly or co-fed along with fossil fuels in boilers, transformed into fuel for car engines by hydrodeoxygenation or even used as a more suitable source for H2 production than biomass. On the other hand, due to its rich composition in compounds resulting from the pyrolysis of cellulose, hemicellulose and lignin, bio-oil co-acts as a source of various value-added chemicals such as aromatic compounds. This review presents an overview of the potential applications of bio-oils and the pyrolysis conditions under which they are obtained. Then, different extraction methods for value-added chemicals, along with the most recent developments, are discussed and future research directions for bio-oil upgrades are highlighted.

Frontiers in Service Science: Fintech Operations—An Overview of Recent Developments and Future Research Directions

2021 ◽  
Vol 13 (1) ◽  
pp. 19-35
Author(s):  
Baile Lu ◽  
Shuai Hao ◽  
Michael Pinedo ◽  
Yuqian Xu
Keyword(s):  
Future Research ◽  
Algorithmic Trading ◽  
Payment Systems ◽  
Research Directions ◽  
Operational Risks ◽  
Technology Industry ◽  
Recent Developments ◽  
Future Research Directions ◽  
Conclusion Section ◽  
Financial Technology

In this paper, we provide a survey of recent developments in the fintech (financial technology) industry, focusing on the operational structures, the technologies involved, and the operational risks associated with the new systems. In particular, we discuss payment systems, algorithmic trading, robo-advisory, crowdfunding, and peer-to-peer lending. In the conclusion section, we discuss various promising research directions.

Nonlinear Vibrations of Plates: An Update of Recent Research Developments

1996 ◽  
Vol 49 (10S) ◽  
pp. S55-S62 ◽  
Author(s):  
M. Sathyamoorthy
Keyword(s):  
Nonlinear Vibrations ◽  
Laminated Composite ◽  
Composite Plates ◽  
Future Research ◽  
Research Directions ◽  
Inertia Effects ◽  
Vibration Behavior ◽  
Recent Developments ◽  
Complicating Factors ◽  
Future Research Directions

This paper comprises a survey on the nonlinear vibration analysis of plates, with emphasis on research carried out since 1987. Most of the research reviewed here deals with the effects of geometric nonlinearity on the vibration behavior of plates. Complicating factors such as material nonlinearity, geometric imperfections, transverse shear and rotatory inertia effects, and magnetic fields on the vibration behavior are included. Recent developments in the analytical and numerical methods of solution of isotropic, orthotropic as well as laminated, composite plates are presented. Experimental, analytical, and numerical investigations are included for all the cases reviewed and some general remarks are presented along with suggestions for future research directions.

scholarly journals Recent Advances in Catalytic Conversion of Biomass to 2,5-Furandicarboxylic Acid

Catalysts ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1113
Author(s):  
Hanyu Cong ◽  
Haibo Yuan ◽  
Zekun Tao ◽  
Hanlin Bao ◽  
Zheming Zhang ◽  
...  
Keyword(s):  
Terephthalic Acid ◽  
Fossil Fuel ◽  
Value Added ◽  
Catalytic Conversion ◽  
Future Research ◽  
Research Directions ◽  
Biodegradable Polyesters ◽  
Fuels And Chemicals ◽  
Future Research Directions ◽  
Furandicarboxylic Acid

Converting biomass into high value-added compounds has attracted great attention for solving fossil fuel consumption and global warming. 5-Hydroxymethylfurfural (HMF) has been considered as a versatile biomass-derived building block that can be used to synthesize a variety of sustainable fuels and chemicals. Among these derivatives, 2,5-furandicarboxylic acid (FDCA) is a desirable alternative to petroleum-derived terephthalic acid for the synthesis of biodegradable polyesters. Herein, to fully understand the current development of the catalytic conversion of biomass to FDCA, a comprehensive review of the catalytic conversion of cellulose biomass to HMF and the oxidation of HMF to FDCA is presented. Moreover, future research directions and general trends of using biomass for FDCA production are also proposed.

The Future of Strategy Implementation

2016 ◽  
Author(s):  
Michael A. Hitt ◽  
Susan E. Jackson ◽  
Salvador Carmona ◽  
Leonard Bierman ◽  
Christina E. Shalley ◽  
...  
Keyword(s):  
Human Capital ◽  
Strategy Implementation ◽  
Marketing Strategies ◽  
Future Research ◽  
Systematic Research ◽  
Financial Assets ◽  
International Acquisitions ◽  
Research Directions ◽  
Future Research Directions

Little systematic research has been done on strategy implementation, yet there is a body of work providing guidance for implementation efforts. The authors examine three basic collections of work on resources and governance, managing human capital, and accounting-based control systems, explaining how these issues have implications for strategy implementation. Although the chapters in this Handbook provide many useful insights concerning issues that must be addressed in order to effectively implement firms’ strategies, there is need for more and systematic work. The purposes of this final chapter are to identify promising future research directions and to serve as a catalyst for the creation of additional collections of work that can enhance our understanding of strategy implementation. The five specific topics for which more work on strategy implementation is needed are innovation and entrepreneurship, marketing strategies and services, managing operations, managing financial assets and human capital, and strategies (international, acquisitions, differentiation).

A Cross-Cultural Review of Workplace Deviance Research

2020 ◽  
pp. 23-46
Author(s):  
Selcen Kılıçaslan Gökoğlu ◽  
Engin Bağış Öztürk
Keyword(s):  
Cultural Differences ◽  
Cross Cultural ◽  
Workplace Deviance ◽  
Future Research ◽  
Moderator Variable ◽  
Negative Behaviors ◽  
Deviant Behaviors ◽  
Cross Cultural Differences ◽  
Recent Developments ◽  
Future Research Directions

In the last two decades, workplace deviance becomes one of the most important topics to understand negative behaviors at work. However, many of the studies that examine deviance take a universal perspective and undermine cross-cultural differences. To address this gap, this chapter focuses on cross-cultural differences and its relationship with deviant workplace behaviors. The authors claim that cross-cultural differences can play an important role as an antecedent and/or moderator variable in influencing deviant behaviors. In order to discuss these effects, they first summarize recent developments in individualism-collectivism, tightness-looseness, and honor cultures. Based on their interpretations, target-oriented deviance might be highly contextualized in collectivist cultures, form of deviance and contents of deviance could be different from honor to dignity cultures. In addition, deviant behaviors as responses to specific events might differ whether a person belongs in a tight culture or not. The implications of our arguments and future research directions are discussed.

scholarly journals Mechanical Properties of SLM-Printed Aluminium Alloys: A Review

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4301 ◽  
Author(s):  
Panneer Ponnusamy ◽  
Rizwan Abdul Rahman Rashid ◽  
Syed Hasan Masood ◽  
Dong Ruan ◽  
Suresh Palanisamy
Keyword(s):  
Mechanical Properties ◽  
Aluminium Alloys ◽  
Mechanical Response ◽  
Value Added ◽  
High Strength ◽  
Operating Conditions ◽  
Future Research ◽  
Powder Bed ◽  
Treatment Conditions ◽  
Future Research Directions

Selective laser melting (SLM) is a powder bed fusion type metal additive manufacturing process which is being applied to manufacture highly customised and value-added parts in biomedical, defence, aerospace, and automotive industries. Aluminium alloy is one of the widely used metals in manufacturing parts in SLM in these sectors due to its light weight, high strength, and corrosion resistance properties. Parts used in such applications can be subjected to severe dynamic loadings and high temperature conditions in service. It is important to understand the mechanical response of such products produced by SLM under different loading and operating conditions. This paper presents a comprehensive review of the latest research carried out in understanding the mechanical properties of aluminium alloys processed by SLM under static, dynamic, different build orientations, and heat treatment conditions with the aim of identifying research gaps and future research directions.

scholarly journals Application of multiphoton microscopy in dermatological studies: A mini-review

2014 ◽  
Vol 07 (05) ◽  
pp. 1330010 ◽  
Author(s):  
Elijah Yew ◽  
Christopher Rowlands ◽  
Peter T. C. So
Keyword(s):  
Near Infrared ◽  
Second Harmonic ◽  
Multiphoton Microscopy ◽  
Infrared Light ◽  
Future Research ◽  
Two Photon ◽  
Recent Developments ◽  
Future Research Directions ◽  
Microscopy Techniques ◽  
Penetration Depths

This review summarizes the historical and more recent developments of multiphoton microscopy, as applied to dermatology. Multiphoton microscopy offers several advantages over competing microscopy techniques: there is an inherent axial sectioning, penetration depths that compete well with confocal microscopy on account of the use of near-infrared light, and many two-photon contrast mechanisms, such as second-harmonic generation, have no analogue in one-photon microscopy. While the penetration depths of photons into tissue are typically limited on the order of hundreds of microns, this is of less concern in dermatology, as the skin is thin and readily accessible. As a result, multiphoton microscopy in dermatology has generated a great deal of interest, much of which is summarized here. The review covers the interaction of light and tissue, as well as the various considerations that must be made when designing an instrument. The state of multiphoton microscopy in imaging skin cancer and various other diseases is also discussed, along with the investigation of aging and regeneration phenomena, and finally, the use of multiphoton microscopy to analyze the transdermal transport of drugs, cosmetics and other agents is summarized. The review concludes with a look at potential future research directions, especially those that are necessary to push these techniques into widespread clinical acceptance.

An update on the association of vitamin D deficiency with common infectious diseases

2015 ◽  
Vol 93 (5) ◽  
pp. 363-368 ◽  
Author(s):  
Richard R. Watkins ◽  
Tracy L. Lemonovich ◽  
Robert A. Salata
Keyword(s):  
Vitamin D ◽  
Infectious Diseases ◽  
Vitamin D Deficiency ◽  
Health Care Facilities ◽  
Future Research ◽  
Therapeutic Implications ◽  
Increased Risk ◽  
Immunodeficiency Virus ◽  
Recent Developments ◽  
Future Research Directions

Vitamin D plays an important role in modulating the immune response to infections. Deficiency of vitamin D is a common condition, affecting both the general population and patients in health care facilities. Over the last decade, an increasing body of evidence has shown an association between vitamin D deficiency and an increased risk for acquiring several infectious diseases, as well as poorer outcomes in vitamin D deficient patients with infections. This review details recent developments in understanding the role of vitamin D in immunity, the antibacterial actions of vitamin D, the association between vitamin D deficiency and common infections (like sepsis, pneumonia, influenza, methicillin-resistant Staphylococcus aureus, human immunodeficiency virus type-1 (HIV), and hepatitis C virus (HCV)), potential therapeutic implications for vitamin D replacement, and future research directions.

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