Research Progress on the Bamboo Timber Preservation

2010 ◽  
Vol 159 ◽  
pp. 216-221 ◽  
Author(s):  
Ya Di Liu ◽  
Wen Jin Liu
Keyword(s):  
Physiological Characteristics ◽  
Research Progress ◽  
General Situation ◽  
Development Trends ◽  
Composite Board ◽  
Existing Problems ◽  
Furniture Manufacturing ◽  
Systematic Understanding ◽  
At Home

With the extensive utilization of the bamboo industrialization, especially in developmental fields of bamboo-based panel, bamboo composite board, bamboo decoration, furniture manufacturing, which makes the application of bamboo have a broader prospect. However, the bamboo and its products in process of processing, transport and implementation often appear mildew, decay, moth-eaten, especially the mildew, it not only affects the appearance of bamboo and its products, but also creates damage conditions for other bacteria and insects. Therefore, bamboo timber preservation processing is the essential link for using bamboo industrialization. From the kinds of bamboo mould and its physiological characteristics, anti-mould technology and the types of mould inhibitor, this paper introduces the general situation at home and abroad and the existing problems and development trends of bamboo timber preservation, aiming to have a more comprehensive and systematic understanding of people for the bamboo mould and timber preservation, and to provide references for further study on the comprehensive anti-mould technology and preparation.

Research progress in the estimation of postmortem interval (PMI) using non-coding RNA (ncRNA) markers

2021 ◽  
pp. 002580242110644
Author(s):  
Ye-Hui Lv ◽  
Zhuo-Qun Wang ◽  
Qiang Lei ◽  
Jiu-Hong Zhao ◽  
Zhi-Fang Yang
Keyword(s):  
Forensic Pathology ◽  
Postmortem Interval ◽  
Research Progress ◽  
Development Trends ◽  
Rna Molecules ◽  
Existing Problems ◽  
Challenging Issue ◽  
Non Coding Rna ◽  
Non Coding Rnas ◽  
Pmi Estimation

Postmortem interval (PMI) estimation has always been a crucial focus and challenging issue in forensic pathology. In recent years, specific RNA molecules and their variation have been used worldwide to estimate PMI. In this review, we summarize the methods used to detect non-coding RNAs (ncRNAs) for PMI estimation based on the literature, show the existing problems and development trends, and provide technical references for relevant studies and estimation practices.

UAV Sensor Fault Diagnosis Technology: A Survey

2012 ◽  
Vol 220-223 ◽  
pp. 1833-1837 ◽  
Author(s):  
Yun Hong Gao ◽  
Ding Zhao ◽  
Yi Bo Li
Keyword(s):  
Fault Diagnosis ◽  
Unmanned Aerial Vehicle ◽  
Future Development ◽  
Research Field ◽  
Research Progress ◽  
Sensor Fault ◽  
Development Trends ◽  
Aerial Vehicle ◽  
Vehicle Sensor ◽  
At Home

In this paper，a survey of UAV (unmanned aerial vehicle ) sensor fault diagnosis technology is presented .UAV sensor fault modes and feature are analyzed. The current research progress and significant approaches in the field are introduced at home and abroad. Finally, the difficulties to be solved and future development trends in the research field are summarized.

scholarly journals A review on the properties, reinforcing effects, and commercialization of nanomaterials for cement-based materials

2020 ◽  
Vol 9 (1) ◽  
pp. 303-322 ◽  
Author(s):  
Zhifang Zhao ◽  
Tianqi Qi ◽  
Wei Zhou ◽  
David Hui ◽  
Cong Xiao ◽  
...  
Keyword(s):  
Cement Hydration ◽  
State Of The Art ◽  
Research Progress ◽  
Market Survey ◽  
Future Perspectives ◽  
Nano Silica ◽  
Physical Processes ◽  
Existing Problems ◽  
Cement Based Materials ◽  
The Cost

AbstractThe behavior of cement-based materials is manipulated by chemical and physical processes at the nanolevel. Therefore, the application of nanomaterials in civil engineering to develop nano-modified cement-based materials is a promising research. In recent decades, a large number of researchers have tried to improve the properties of cement-based materials by employing various nanomaterials and to characterize the mechanism of nano-strengthening. In this study, the state of the art progress of nano-modified cement-based materials is systematically reviewed and summarized. First, this study reviews the basic properties and dispersion methods of nanomaterials commonly used in cement-based materials, including carbon nanotubes, carbon nanofibers, graphene, graphene oxide, nano-silica, nano-calcium carbonate, nano-calcium silicate hydrate, etc. Then the research progress on nano-engineered cementitious composites is reviewed from the view of accelerating cement hydration, reinforcing mechanical properties, and improving durability. In addition, the market and applications of nanomaterials for cement-based materials are briefly discussed, and the cost is creatively summarized through market survey. Finally, this study also summarizes the existing problems in current research and provides future perspectives accordingly.

scholarly journals Research Progress and Development Trends of Acoustic Metamaterials

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 4018
Author(s):  
Hao Song ◽  
Xiaodong Ding ◽  
Zixian Cui ◽  
Haohao Hu
Keyword(s):  
Doppler Effect ◽  
Negative Refraction ◽  
Development Trend ◽  
Atomic Clusters ◽  
Research Progress ◽  
Acoustic Metamaterials ◽  
Development Trends ◽  
Related Research ◽  
The Past ◽  
Anomalous Doppler Effect

Acoustic metamaterials are materials with artificially designed structures, which have characteristics that surpass the behavior of natural materials, such as negative refraction, anomalous Doppler effect, plane focusing, etc. This article mainly introduces and summarizes the related research progress of acoustic metamaterials in the past two decades, focusing on meta-atomic acoustic metamaterials, metamolecular acoustic metamaterials, meta-atomic clusters and metamolecule cluster acoustic metamaterials. Finally, the research overview and development trend of acoustic metasurfaces are briefly introduced.

scholarly journals Research progress of steel slag asphalt concrete

2020 ◽  
Vol 175 ◽  
pp. 11014
Author(s):  
Jian Sun ◽  
Andrii Bieliatynskyi ◽  
Kateryna Krayushkina ◽  
Oleksandra Akmaldinova
Keyword(s):  
Asphalt Concrete ◽  
Steel Slag ◽  
Research Progress ◽  
Practical Application ◽  
Excellent Performance ◽  
At Home

Steel slag asphalt concrete is one of the important components of asphalt concrete. There are some differences between the steel slag asphalt concrete and ordinary asphalt concrete. Based on the research of scholars at home and abroad, this paper systematically introduces the steel slag characteristics and excellent performance of steel slag asphalt concrete, summarizes the problems existing in the practical application of steel slag asphalt concrete, and provides references for its promotion and application.

Research Progress of the Surface Oxidation of Titanium and its Alloys

2013 ◽  
Vol 748 ◽  
pp. 188-191
Author(s):  
Hui Jun Yu
Keyword(s):  
Titanium Alloys ◽  
Biomedical Applications ◽  
Influence Factors ◽  
Surface Oxidation ◽  
Research Progress ◽  
Corrosion Resistant ◽  
Specific Strength ◽  
Existing Problems ◽  
High Specific Strength ◽  
Micro Arc Oxidation

Titanium and titanium alloys possess some attractive properties, such as excellent corrosion and erosion resistance, low densities, high specific strength and modulus, enabling them extensively used in aeronautical, marine, chemical and biomedical applications and so on. Nevertheless, Recent years, the corrosion resistance of titanium and titanium alloys is required to elevate in some fields, proper surface modification such as surface oxidation can solve the problems effectively. In this paper, the recent investigations of thermal oxidation and micro-arc oxidation to improve the corrosion resistant of titanium and its alloys are reviewed. The structures, properties and their influence factors of the coatings are analysed systematically. And the existing problems and the future prospect of the further researches is mentioned.

Research Progress on Aging of Polymer Modified Asphalt

2011 ◽  
Vol 71-78 ◽  
pp. 5038-5041
Author(s):  
Chang Qing Fang ◽  
Min Zhang ◽  
Jing Bo Hu ◽  
Ying Zhang ◽  
Rui En Yu
Keyword(s):  
Asphalt Pavement ◽  
Present Situation ◽  
Research Progress ◽  
Pavement Performance ◽  
Modified Asphalt ◽  
Aging Mechanism ◽  
Characterization Techniques ◽  
Aging Properties ◽  
Polymer Modified Asphalt ◽  
At Home

Asphalt aging is inevitable to the asphalt pavement performance, which will lead asphalt to hardening gradually and becoming brittle. Therefore, aging progress shortens the life of asphalt, but the study on polymer asphalt improves the phenomenon. The present situation on aging of polymer modified asphalt is summarized and the aging mechanism of modified asphalts is analyzed in the paper. Otherwise, the research progress at home and abroad on the aging properties of modified asphalt is introduced by a series of characterization techniques, which include mechanics technique, rheology technique, FTIR, GPC and so on

The Research on the Current Situation and Advances of Petrochemical Wastewater Treatment

2012 ◽  
Vol 550-553 ◽  
pp. 2416-2419 ◽  
Author(s):  
Wen Jun Xiang
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Petrochemical Industry ◽  
Present Situation ◽  
Current Situation ◽  
High Salt ◽  
Petrochemical Wastewater ◽  
Existing Problems ◽  
The Future ◽  
At Home

At present, it is so prominent in the development of the petrochemical industry in China，and it is accompanied by petrochemical wastewater, which has become a big problem need to solve urgently.Because petrochemical wastewater mainly contains benzene-compound, organic matter, high salt wastewater and oil sewage, etc. They are very damaging and highly contaminated. The composition and properties of the petrochemical wastewater were introduced firstly, the current situation of petrochemical wastewater treatment at home and abroad were reviewed in the study. Especially the development of petrochemical industry in sichuan was introduced. Based on the present situation and the existing problems, put forward some countermeasures and expect technique develop direction in the future.

Progress on Mg2Si Thermoelectric Materials

2014 ◽  
Vol 886 ◽  
pp. 71-74 ◽  
Author(s):  
Xiao Dong Luo ◽  
Hao Liu ◽  
Wen Lin Xu ◽  
Yong Xiang Zhu
Keyword(s):  
Thermoelectric Materials ◽  
Potential Application ◽  
Research Progress ◽  
Preparation Technique ◽  
Thermoelectric Devices ◽  
Existing Problems ◽  
Basic Performance ◽  
The Future

Mg2Si which is composed of less toxic and naturally abundant elements,has attracted more attention for its potential application to thermoelectric devices. In this paper, the basic performance and preparation technique of Mg2Si thermoelectric materials are introduced. reviewed the current research progress of Mg2Si thermoelectricity. And the paper points out the existing problems and the trend of study in the future.

scholarly journals Research progress of carbon-assisted etching of silicon nanostructures

2021 ◽  
Vol 2076 (1) ◽  
pp. 012060
Author(s):  
Xiaoyu Yang ◽  
Ling Tong ◽  
Lin Wu ◽  
Baoguo Zhang ◽  
Zhiyuan Liao ◽  
...  
Keyword(s):  
Large Scale ◽  
Low Cost ◽  
Lithium Ion ◽  
Development Trend ◽  
Research Progress ◽  
Silicon Nanostructures ◽  
Storage Devices ◽  
Existing Problems ◽  
Energy Conversion And Storage ◽  
Silicon Based

Abstract Silicon nanostructures are attracting growing attention due to their properties and promising application prospects in solar energy conversion and storage devices, thermoelectric devices, lithium-ion batteries, and biosensing technologies. The large-scale and low-cost preparation of silicon nanostructures is critical for silicon-based advanced functional devices commercialization. In this paper, the feasibility and mechanism of silicon nanostructure fabricated by non-metallic carbon catalytic etching, as well as the currently existing problems and future development trend are reviewed.

Sign in / Sign up

Export Citation Format

Share Document