Regulated rivers in India: research progress and future directions

2021 ◽  
pp. 1-13
Author(s):  
Chandan Pradhan ◽  
Vinay Chembolu ◽  
Rishikesh Bharti ◽  
Subashisa Dutta
Keyword(s):  
Research Progress ◽  
Regulated Rivers ◽  
Future Directions

Mix Networks: Existing Scenarios and Future Directions on Security and Privacy

2019 ◽  
Vol 14 ◽  
Author(s):  
Khaleel Ahmad ◽  
Afsar Kamal
Keyword(s):  
Security And Privacy ◽  
Research Progress ◽  
Future Research ◽  
Future Directions ◽  
Practical Solution ◽  
Research Gap ◽  
The Web ◽  
Privacy Enhancing Techniques

Background: Privacy enhancing techniques are developed in order to provide strong protection to cyberspace. These techniques aim to allow users to keep their identities hidden during the communication when they are sending email, making payments online, browsing the Web or posting to newsgroups. MixNet is the most practical solution for concealing identities of message and sender’s identities. Objective: It provides sender and receiver anonymity as well as message security. The main goal of MixNet is to overcome vulnerability and enhance the performance of communication. It can efficiently handle the messages of various length and produce desirable results with privacy. The main objective of this paper is to acquire information and concepts regarding MixNet. We also provide guidelines for future research and references. Methods : The designing of MixNet depends on what cryptosystem method is used. Symmetric and Asymmetric both are used. Other methods could be also used such as PIR, CSP and FDR model, RPC, Token-based approach or others. Result: In this paper we provide an overview of MixNet approaches and presented a survey on MixNet based techniques and different models. We also constructed the comparison tables as per our requirements for better understanding. For this purpose, we found a total of 120 articles related to the MixNet published between 1990 and 2018 from the most relevant scientific resources. However, only 86 papers were analyzed due to comprehensiveness and relevancy to this article. Conclusion: Focused on the security and privacy of communication and how it can be achieved. This survey also reveals research progress and research gap on MixNet.

scholarly journals Research Progress on Photocatalytic/Photoelectrocatalytic Oxidation of Nitrogen Oxides

2021 ◽  
Author(s):  
Shuangjun Li ◽  
Linglong Chen ◽  
Zhong Ma ◽  
Guisheng Li ◽  
Dieqing Zhang
Keyword(s):  
Nitrogen Oxides ◽  
Photocatalytic Oxidation ◽  
Research Progress ◽  
Future Directions ◽  
Inorganic Semiconductors ◽  
Photoelectrocatalytic Oxidation ◽  
Low Concentrations ◽  
Photocatalytic System ◽  
Metal Organic ◽  
Oxidation Of No

AbstractThe emission of nitrogen oxides (NOx) increases year by year, causing serious problems to our livelihoods. The photocatalytic oxidation of NOx has attracted more attention recently because of its efficient removal of NOx, especially for low concentrations of NOx. In this review, the mechanism of the photocatalytic oxidation of NOx is described. Then, the recent progress on the development of photocatalysts is reviewed according to the categories of inorganic semiconductors, bismuth-based compounds, nitrogen carbide polymer, and metal organic frameworks (MOFs). In addition, the photoelectrocatalytic oxidation of NOx, a method involving the application of an external voltage on the photocatalytic system to further increase the removal efficiency of NOx, and its progress are summarized. Finally, we outline the remaining challenges and provide our perspectives on the future directions for the photocatalytic oxidation of NOx.

scholarly journals Current Knowledge and Future Directions for Improving Subsoiling Quality and Reducing Energy Consumption in Conservation Fields

Agriculture ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 575
Author(s):  
Shangyi Lou ◽  
Jin He ◽  
Hongwen Li ◽  
Qingjie Wang ◽  
Caiyun Lu ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Cover Crops ◽  
Current Knowledge ◽  
High Energy ◽  
Field Application ◽  
Research Progress ◽  
Monitoring And Control ◽  
Future Directions ◽  
Tillage Depth ◽  
And Control

Subsoiling has been acknowledged worldwide to break compacted hardpan, improve soil permeability and water storage capacity, and promote topsoil deepening and root growth. However, there exist certain factors which limit the wide in-field application of subsoiling machines. Of these factors, the main two are poor subsoiling quality and high energy consumption, especially the undesired tillage depth obtained in the field with cover crops. Based on the analysis of global adoption and benefits of subsoiling technology, and application status of subsoiling machines, this article reviewed the research methods, technical characteristics, and developing trends in five key aspects, including subsoiling shovel design, anti-drag technologies, technologies of tillage depth detection and control, and research on soil mechanical interaction. Combined with the research progress and application requirements of subsoiling machines across the globe, current problems and technical difficulties were analyzed and summarized. Aiming to solve these problems, improve subsoiling quality, and reduce energy consumption, this article proposed future directions for the development of subsoiling machines, including optimizing the soil model in computer simulation, strengthening research on the subsoiling mechanism and comprehensive effect, developing new tillage depth monitoring and control systems, and improving wear-resisting properties of subsoiling shovels.

Magnesium-based Biodegradable Materials for Biomedical Applications

MRS Advances ◽  
2018 ◽  
Vol 3 (40) ◽  
pp. 2359-2364 ◽  
Author(s):  
Chaoxing Zhang ◽  
Jiajia Lin ◽  
Huinan Liu
Keyword(s):  
Mechanical Properties ◽  
Surface Treatment ◽  
Biomedical Applications ◽  
Antibacterial Properties ◽  
Clinical Applications ◽  
Research Progress ◽  
Biodegradable Materials ◽  
Future Directions ◽  
Rapid Degradation ◽  
Device Applications

ABSTRACTMagnesium (Mg)-based biomaterials have attracted increasing attention in biomedical applications, such as orthopaedic, cardiovascular, urological, and neural applications because of the biocompatibility, biodegradability, antibacterial properties, and excellent mechanical properties. However, rapid degradation of Mg is the major concern for many clinical applications. Alloying Mg with other elements and engineering proper surfaces are the two approaches to control the degradation of Mg-based biomaterials. Our lab has investigated several classes of Mg-based biodegradable alloys and various surface treatment methods for medical implant and device applications. This mini-review highlights key research progress on Mg-based biomaterials and suggests future directions for Mg-based biomaterials.

scholarly journals Recent Progress in Metal-Based Nanoparticles Mediated Photodynamic Therapy

Molecules ◽  
2018 ◽  
Vol 23 (7) ◽  
pp. 1704 ◽  
Author(s):  
Jingyao Sun ◽  
Semen Kormakov ◽  
Ying Liu ◽  
Yao Huang ◽  
Daming Wu ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Recent Progress ◽  
Water Solubility ◽  
Research Progress ◽  
Visible Range ◽  
Light Penetration ◽  
Potential Toxicity ◽  
Future Directions ◽  
Administration Routes ◽  
Recent Research Progress

Photodynamic therapy (PDT) is able to non-invasively treat and diagnose various cancers and nonmalignant diseases by combining light, oxygen, and photosensitizers (PSs). However, the application of PDT is hindered by poor water solubility and limited light-penetration depth of the currently available photosensitizers (PSs). Water solubility of PSs is crucial for designing pharmaceutical formulation and administration routes. Wavelength of light source at visible range normally has therapeutic depth less than 1 mm. In this review, focus is on the recent research progress of metal-based nanoparticles being applied in PDT. The potential toxicity of these nanoscales and future directions are further discussed.

scholarly journals Rational Protocols and Attacks in Blockchain System

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Tao Li ◽  
Yuling Chen ◽  
Yanli Wang ◽  
Yilei Wang ◽  
Minghao Zhao ◽  
...  
Keyword(s):  
Game Theory ◽  
Internet Of Things ◽  
Building Blocks ◽  
Emerging Technology ◽  
Economic Incentives ◽  
Research Progress ◽  
Smart Contracts ◽  
Future Directions ◽  
Smart Contract ◽  
Game Theoretic

Blockchain has been an emerging technology, which comprises lots of fields such as distributed systems and Internet of Things (IoT). As is well known, blockchain is the underlying technology of bitcoin, whose initial motivation is derived from economic incentives. Therefore, lots of components of blockchain (e.g., consensus mechanism) can be constructed toward the view of game theory. In this paper, we highlight the combination of game theory and blockchain, including rational smart contracts, game theoretic attacks, and rational mining strategies. When put differently, the rational parties, who manage to maximize their utilities, involved in blockchain chose their strategies according to the economic incentives. Consequently, we focus on the influence of rational parties with respect to building blocks. More specifically, we investigate the research progress from the aspects of smart contract, rational attacks, and consensus mechanism, respectively. Finally, we present some future directions based on the brief survey with respect to game theory and blockchain.

Dams and geomorphology: Research progress and future directions

Geomorphology ◽  
2005 ◽  
Vol 71 (1-2) ◽  
pp. 27-47 ◽  
Author(s):  
Geoffrey E. Petts ◽  
Angela M. Gurnell
Keyword(s):  
Research Progress ◽  
Future Directions

Adaptive Control Approaches for Nonlinear Systems: Retrospect and Prospects

2015 ◽  
Vol 719-720 ◽  
pp. 336-345
Author(s):  
Hong Liang Rao
Keyword(s):  
Adaptive Control ◽  
Nonlinear Systems ◽  
Data Driven ◽  
Research Progress ◽  
New Classification ◽  
Future Directions ◽  
Main Research ◽  
Model Driven ◽  
Classification Framework ◽  
State Of Art

This paper discusses the state-of-art of adaptive control approaches for nonlinear systems to date and presents a new classification framework, in which the existing adaptive control approaches can be broadly classified into two categories: model-driven methods and data-driven methods. The principle, main research progress, and inherent problems of these methods are reviewed. Finally, some practical considerations and future directions are also briefly explored and discussed.

scholarly journals Synthetic biology for future food: Research progress and future directions

Future Foods ◽  
2021 ◽  
Vol 3 ◽  
pp. 100025
Author(s):  
Xueqin Lv ◽  
Yaokang Wu ◽  
Mengyue Gong ◽  
Jieying Deng ◽  
Yang Gu ◽  
...  
Keyword(s):  
Synthetic Biology ◽  
Research Progress ◽  
Future Directions ◽  
Food Research
Sign in / Sign up

Export Citation Format

Share Document