scholarly journals Factors affecting chemical heat washing efficiency of oily sludge and Demulsification Mechanism

2021 ◽  
Vol 329 ◽  
pp. 01053
Author(s):  
Yong Yang ◽  
Yijun Wang ◽  
Zebin Gao ◽  
Long Zhang ◽  
Chengtun Qu ◽  
...  
Keyword(s):  
Hazardous Waste ◽  
Research Progress ◽  
Ecological Environment ◽  
Future Research ◽  
Oily Sludge ◽  
Chemical Heat ◽  
Factors Affecting ◽  
Development Direction ◽  
Washing Efficiency ◽  
Main Factors

Oily sludge belongs to the hazardous waste specified in the national hazardous waste list. It will directly or indirectly threaten the ecological environment and human health. This paper introduces the advantages of chemical hot washing of oily sludge. This paper discusses the main factors affecting the treatment effect, Demulsification Mechanism and research progress in the treatment of oily sludge by chemical thermal washing, and puts forward some suggestions on the future research and development direction of oily sludge utilization and disposal.

Research Progress of Poly Carboxylic Acid Concrete Shrinkage Reducing Agent

2015 ◽  
Vol 744-746 ◽  
pp. 1485-1490
Author(s):  
Shi Tang ◽  
Lei Zhang
Keyword(s):  
Carboxylic Acid ◽  
Research Progress ◽  
Reduction Mechanism ◽  
Factors Affecting ◽  
Structure Characteristics ◽  
Concrete Shrinkage ◽  
Development Direction ◽  
Main Development ◽  
Main Factors ◽  
Shrinkage Reducing Agent

The reduction mechanism, characteristics of molecular structure, and main factors affecting the reduction ability are reviewed in brief. The research progress of poly carboxylic acid concrete SRA are also reviewed. And based on the structure characteristics of poly carboxylic acid SRA, more functional poly carboxylic acid SRA is the main development direction in concrete shrinkage agent reducing in the future.

The Research Progress of taxol in Taxus

2020 ◽  
Vol 21 ◽  
Author(s):  
Fenjuan Shao ◽  
Iain W. Wilson ◽  
Deyou Qiu
Keyword(s):  
Woody Species ◽  
Research Progress ◽  
Future Research ◽  
Biosynthesis Pathway ◽  
Factors Affecting ◽  
Lung Cancers ◽  
Taxol Biosynthesis ◽  
Medicinal Value ◽  
Taxol Production

Background: Taxus is a valuable woody species with important medicinal value. The bark of Taxus can produce taxol, a natural antineoplastic drug that is widely used in the treatment of breast, ovarian and lung cancers. However, the low content of taxol in the bark of Taxus can not meet the growing clinical demands, so the current research is on finding ways to increase taxol production. Objective: In this review, the research progress of taxol including the factors affecting the taxol content, biosynthesis pathway of taxol, production of taxol in vitro and the application of multi-omics approaches in Taxus as well as future research prospects will be discussed. Results and Conclusion: The taxol content is not only dependent on the species, age and tissues, but also affected by light, moisture levels, temperature, soil fertility and microbes. Most of the enzymes in taxol biosynthesis pathway have been identified and characterized. Total chemical synthesis, semi-synthesis, plant cell culture and biosynthesis in endophytic fungi have been explored to product taxol. Multi-omics have been used to study on Taxus and taxol. Further efforts in the identification of unknown enzymes in taxol biosynthesis pathway, establishment of the genetic transformation system in Taxus and the regulatory mechanism of taxol biosynthesis and Taxus cell growth will play a significant role in improving the yield of taxol in Taxus cells and plants.

scholarly journals Research Progress of Soil Water Infiltration

2020 ◽  
Vol 189 ◽  
pp. 01006
Author(s):  
Xia Qing ◽  
Han Haojie ◽  
Xiong Jinran ◽  
Zheng Caixia ◽  
Zhang Zhiliang ◽  
...  
Keyword(s):  
Soil Water ◽  
Agricultural Development ◽  
Prediction Models ◽  
Test Methods ◽  
Water Infiltration ◽  
Research Progress ◽  
Future Research ◽  
Research Development ◽  
Soil Water Infiltration ◽  
Development Direction

Soil water is an important link in the transformation of the “five waters”, which determines the growth and production of crops. Mastering the scientific infiltration law is a key link to promote agricultural development. Based on the existing research results, this paper systematically summarizes the basic theories, test methods, influencing factors, simulation equations, prediction models and other results of soil water infiltration research at home and abroad so far, and discusses the future research development direction.

Research Progress on Ecological Design Methods of Materials

2015 ◽  
Vol 814 ◽  
pp. 430-434 ◽  
Author(s):  
Xiao Liu ◽  
Xian Zheng Gong ◽  
Yu Liu ◽  
Zhen Guo Peng
Keyword(s):  
Life Cycle ◽  
Design Process ◽  
Future Development ◽  
Design Method ◽  
Material Design ◽  
Research Progress ◽  
Ecological Environment ◽  
Ecological Design ◽  
Development Direction ◽  
Design Ideas

Ecological design of material is to use the ecological ideology in the material design process, considering the ecological environment problems in the life cycle of material, and scheme out the material which can both meet the demand of human and environment. This paper introduces some ecological design ideas and methods used in the material field, and the latest progress of ecological design and each of their advantages are summarized, the ecological design method of the typical materials is obtained. And finally the present problems to be solved and the future development direction of the ecological design puts forward.

scholarly journals Outlook and overview of microplastics pollution in ecological environment

2020 ◽  
Vol 143 ◽  
pp. 02027
Author(s):  
Zhao Bin ◽  
Cheng Yongqiang ◽  
Guo Cuilian ◽  
Liu Maoke ◽  
Yao Puyu ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Research Progress ◽  
Ecological Environment ◽  
Future Research ◽  
Research Directions ◽  
Toxicological Effects ◽  
New Type ◽  
Future Research Directions ◽  
Physical And Chemical ◽  
And Chemical Properties

Microplastics are attracting more and more attention as a new type of pollutant in the ecological environment. Microplastics are difficult to degrade because of their unique physical and chemical properties. Some microplastics adsorbed toxic chemicals (e.g. heavy metals or organic pollutants) will cause a series of toxicological effects in organisms. This paper summarized the research progress in microplastics from the aspects of the types, distribution, detection and the toxicological effects. In addition, future research directions were also proposed and discussed.

scholarly journals Research Progress and Development Trends of Materials Genome Technology

2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Shuling Xiong ◽  
Luohan Wang
Keyword(s):  
Research Progress ◽  
Future Research ◽  
Material Research ◽  
New Materials ◽  
Electronic Information ◽  
Development Trends ◽  
Development Direction ◽  
Materials Genome ◽  
Design Idea ◽  
Information Energy

Materials genome is a subversive frontier technology emerging in the field of international materials in recent years and also a propeller for the development of new materials. It brings fundamental changes to the traditional material research mode, aiming to accelerate the research and development of new materials and reduce costs, so as to support the development of electronic information, energy and environmental protection, aerospace, and other industries. In this paper, we introduce the strategic significance, national layout, and methods of materials genome technology and emphatically introduce the design idea and development status of materials database method. Then we summarize the development trends of materials genome and put forward suggestions for its future research, aiming to provide references for the development direction of materials genome technology in various countries, especially in developing countries.

Research Progress on the Ocean Estuary and its Enlightenment to the Study of the Tributary in Three Gorges Reservoir

2013 ◽  
Vol 295-298 ◽  
pp. 2215-2222 ◽  
Author(s):  
Dao Bin Ji ◽  
Zheng Jian Yang ◽  
Yu Ling Huang ◽  
Jun Ma ◽  
Tao Xie ◽  
...  
Keyword(s):  
Saltwater Intrusion ◽  
Three Gorges Reservoir ◽  
Environmental Problems ◽  
Research Progress ◽  
Ecological Environment ◽  
Future Research ◽  
Three Gorges ◽  
Physical Context ◽  
The Future ◽  
Estuary Sediment

This paper comments and analyses the research progress of the estuary sediment and ecological environment, including saltwater intrusion phenomenon and laws, sediment and ecological environment. The physical context, sediment and ecological environmental problems of the tributary bay of TGR are analyzed comparatively with those in ocean estuary. Based on the existing research and achievements, this paper puts forward that the research ideas and methods of the ocean estuary should be drawn from, and outlooks the future research works on the dynamic and ecological environmental problems in tributary bays of TGR.

scholarly journals Bt insecticidal efficacy variation and agronomic regulation in Bt cotton

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Zhenyu LIU ◽  
M. A. Abidallha ELTAYIB H ◽  
Huimin WU ◽  
Mingyuan ZHOU ◽  
Xiang ZHANG ◽  
...  
Keyword(s):  
Transgenic Cotton ◽  
Research Progress ◽  
Future Research ◽  
Bt Cotton ◽  
Factors Affecting ◽  
Agronomic Practices ◽  
Agronomic Management ◽  
Bt Protein ◽  
Insecticidal Efficacy ◽  
Efficacy Factors

AbstractThe bollworm can be controlled effectively with Bacillus thuringiensis transgenic cotton (Bt cotton) which is being applied worldwide. However, the insecticidal efficacy is not stable. Here we give a summary of research progress for the mechanism of the altered insecticidal efficacy, factors affecting the expression of insect resistance, agronomic practices on regulation of insecticidal efficacy in Bt cotton. To realize the transgenic potential of Bt cotton cultivars, future research may be conducted by increasing synthesis and reducing degradation of Bt protein to maintain high insecticidal ability in the transgenic cotton by agronomic management.

scholarly journals Innovative solutions to increase last-mile delivery efficiency in B2C e-commerce: a literature review

2019 ◽  
Vol 49 (9) ◽  
pp. 901-920 ◽  
Author(s):  
Riccardo Mangiaracina ◽  
Alessandro Perego ◽  
Arianna Seghezzi ◽  
Angela Tumino
Keyword(s):  
Dynamic Pricing ◽  
Bibliographic Databases ◽  
Future Research ◽  
Content Type ◽  
Factors Affecting ◽  
Research Activities ◽  
Last Mile ◽  
Innovative Solutions ◽  
Main Factors ◽  
Last Mile Delivery

Purpose The purpose of this paper is twofold: first, to review and classify scientific publications dealing with those innovative solutions aimed at increasing the efficiency of last-mile delivery in business to consumer (B2C) e-commerce; and, second, to outline directions for future research in this field. Design/methodology/approach The review is based on 75 papers published between 2001 and 2019 in international peer-reviewed journals or proceedings of conferences, retrieved from bibliographic databases and science search engines. Findings Due to its importance in affecting the overall logistics costs and, as a consequence, the economic sustainability of a B2C e-commerce initiative, last-mile delivery process deserves particular attention in order to be optimised. The review highlights that, among the main factors affecting its cost, there are the probability to have failed deliveries, the customer density in the delivery areas and the degree of automation of the process. Innovative and viable last-mile delivery solutions – which may impact the mentioned drivers – include parcel lockers, crowdsourcing logistics, mapping the consumer presence at home and dynamic pricing policies. Eventually, some gaps and areas for further research activities have been identified (e.g. mapping customer behaviour, crowdsourcing logistics). Originality/value This review offers interesting insights to both academics and practitioners. On the academic side, it analyses and classifies relevant literature about innovative and efficiency-oriented last-mile delivery solutions, proposing directions for future research efforts. On the managerial side, it presents a holistic framework of the main factors affecting last-mile delivery cost and of viable innovative solutions that may be implemented to increase efficiency.

scholarly journals Progress and Prospects of Forest Ecological Asset Research

2021 ◽  
Vol 14 (1) ◽  
pp. 395
Author(s):  
Tingling Li ◽  
Kangning Xiong ◽  
Shan Yang ◽  
Haiyan Liu ◽  
Yao Qin ◽  
...  
Keyword(s):  
Evaluation Index System ◽  
Research Progress ◽  
Ecological Environment ◽  
Future Research ◽  
Temporal Heterogeneity ◽  
Local Conditions ◽  
Technical Problems ◽  
Spatial And Temporal Heterogeneity ◽  
The Face ◽  
Ecological Assets

In recent years, in the face of the deterioration of the ecological environment, the research on forest ecological assets (FEA) has increasingly become a focal area of ecological research. To understand the current research progress and future prospects, this paper classifies and summarizes the main progress and achievements related to FEA in terms of theoretical studies, index systems, technical methods, and accounting models. In view of the existing research results, this paper proposes seven key scientific and technical problems and prospects to be solved, including the unification of the concept of ecological assets, the focus of future research on FEA, the construction of an evaluation index system according to local conditions, the integration of data assimilation methods that complement ground and remote sensing observations, the study of the spatial and temporal heterogeneity of forest ecological assets, the study of the net value of FEA, and the preservation and appreciation of FEA.

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