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These porous substances attract substantial interest among researchers in chemistry, chemical engineering, and materials science to find novel porous stuff with improved properties and applications.
Li, (2021) An Overview of Metal–Organic Frameworks for Green Chemical Engineering.
Engineering 7 (2021) 1115–1139. https://doi.org/10.1016/j.eng.2021.07.001
Materials, 15, 7591
Yu, (2020) Sodium/ potassium-ion batteries: boosting the rate capability and cycle life by combining morphology, defect and structure engineering.

A major limitation of established degradable implant materials is the fact, that their degradation behavior can not be reliably predicted applying existing experimental methodologies.
Introduction Biodegradable polymers, like aliphatic poly(a-hydroxy esters) have found several application as implant materials over the last decades.
Surgical sutures, fracture and craniomaxillofacial fixations and materials in controlled drug delivery systems are prominent examples [1-5].
In biomaterial-based Regenerative Therapies such as tissue engineering approaches or stimulation of endogenous regeneration degradable polymers can be applied as temporary substitutes for the extracellular matrix (ECM) [6,7].
Here the below described combined knowledge-based approach can be useful, which is composed of two key elements.

Leung 2,b and Wei Sun1,c 1College of Materials Science and Engineering, Southeast University, Jiangsu Key laboratory of Construction Materials, Nanjing, China 2Department of Civil and environmental Engineering, Hong Kong University of Science and Technology, Hong Kong, China SAR apangchao@seu.edu.cn, bckleung@ust.hk, csunwei@seu.edu.cn Keywords: cementitious composites rubber particles fracture toughness microstructure pore size distribution micro-hardness.
Experimental Program 1.1 Materials and Mix Compositions In the current experiments, P.II Portland cement, fly ash (FA) and fine silica sand (0.2mm maximum size) were employed.
Materials and Structures, Vol. 28(1995),p.586-595
Abdel-Hameed, Mechanical, Fracture, and Microstructural Investigations of Rubber Concrete, Journal of materials in civil engineering(2008) p.640-649
ASCE Journal of Engineering Mechanics, Vol.118 (1992): 2298-3018

Analysis of Affecting Factors and Countermeasures of Innovative Education in Military Academy Xu Hang and Zhou Mingqiu The First Aeronautical Institute of Air Force, Henan, Xinyang, 464000 email:hangxhappy@163.com Key words: Innovation Education; Military academy; Education Mode; Evaluation System Abstract.
Ways and methods to solve the problem Innovative education is complete system engineering, involving many aspects such as the operating system, management mechanism, teaching links, teaching contents, teaching methods, teaching aids, examination system, evaluation system, etc. 1.
(1) We need to construct a multi-dimensional and interactive classroom teaching system, change the past teaching method of “three centers” (with teachers as the center, the classroom as the center and teaching materials as the center) and attach importance to the subject role and dynamic role of students in learning activities

Study on the Growth of Crystalline Er2O3 Films on Si Substrates by RHEED Patterns Yanyan Zhu1, a, Run Xu2, b and Zebo Fang3, c 1Department of Mathematics and Physics, Shanghai University of Electric Power, Shanghai 200090, China 2School of Material Science and Engineering, Shanghai University, Shanghai 200072, China 3Department of Physics, Shaoxing University, Shaoxing 312000, China ayyzhu@shiep.edu.cn, brunxu@shu.edu.cn, ccsfb@usx.edu.cn Keywords: erbium oxide; epitaxial growth; interface structures Abstract.
The interface quality of our sample reported here is obviously superior to that of pure Er2O3 dielectric material.
Acknowledgements This work was supported by the National Natural Science Foundation of China under grant No. 11004130 and 60806031, and the Key Fundamental Project of Shanghai under grant No. 10JC1405900.

It is not hard to know that in the product symbol blending with the image, the image corresponds with the designatum of the product symbol, which means the image is attached to the designatum and is the key to convey the semantic meaning.
This information includes the physical materials and psychological feelings, such as the pictures, the sound-visuals, the sense of excitement, the sense of comfort and so on.
Cui: Packaging Engineering, Vol. 26 (2005) No.6, pp.212-213.

The surface buoys can be made with composite materials and be fixed on the pile cap or anchorage by mooring.
When the ship is hit, the ship slowly forward through dragging anchorage by the intercept cable, which can consume a lot of energy and play a role of intercept and anti collision; (4) There is a large range of effective protection to assure P15 and P16 piers against ship collision and has some protective effect for the remaining side pier; (5) The collision avoidance system is suitable for all ship types, especially for the ship with ball nose bow; (6) because the key components of the entire system is the cable, once the cable breaks due to corrosion or the occurrence of ship collision, the job of changing cables can be carried out in low water or dry season.
Harbin Engineering University, 2002 [3] WANG Kang, YI You-ping.

A Multiphase-field Microstructure Numerical Simulation of AL-Cu Eutectic Alloy Jinjun Tang1,2,a, Jianzhong Jiang1,b , Liqun Hou2,c, Dahui Chen2,d and Hua Zhang2,e 1Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China 2Ningbo Sub-academy of the National Weapons Science Research Academy, Ningbo 315103, China a jinjun.tang@163.com, b jiangjz@zju.edu.cn, c liqunhou@163.com, d davichen@163.com, ezhanghuanb@126.com Key words: Multiphase-field model; Microstructure; AL-Cu eutectic alloy; Numerical simulation; Eutectic layered growth Abstract.

Research in Benzimidazole Compounds as Antibacterial Agents MENG Jiang Pinga, HU Cheng Bob* and WU Fei Yuec School of Materials and Chemical Engineering, Chongqing University of Arts and Sciences, Chongqing 402160, China aEmail: mengjp2006@163.com b*Email: bch1002@126.com cEmail: wufeiyue20002000@yahoo.com.cn Keywords: benzimidazole, antibacterial, complex, macrocyclic compound.
Mixed ligand complexes have a key role in biological chemistry because the mixed chelation occurs commonly in biological fluids as millions of potential ligands are likely to compete for metal ions in vivo[17].

Application of Wide Band Oxide Semiconductor in Bulk Heterojunction Solar Cells Jianmin Ye School of Mechanical and Automotive Engineering, Hubei University of Arts and Science, Xiangyang, 441053, P.
Recently, nickeloxide(NiO) thin film has attracted considerable attention because it can be used as a p-type transparent conducting film, an active electrode in electrochromic devices, and resistance change material in resistance random access memory(RRAM) devices [7].
It is known that as a p-type semiconductor material, the resistivity of nickel oxide film depends on the concentration of cation (Ni) vacancies.
But deadly factor of 4-8 nm thick NiO solar cells is fill factor (FF), they all have poor FF, larger leakage current and deficient electron blocking capability maybe the key factors.