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Fracture Risk Modeling in Pyrolyzed Phenolic Resin: Microstructure Prediction and Stress Concentration Factor Evolution via CNN-CVAE and FEM Wenhan Chen1,a, Shuhua Niu1,b, Dan Wang2,c, Cheng Li1,d, Dong Chen1,e and Jianwei Shi1,f * 1School of Mechanical and Power Engineering, Zhengzhou University, P.R.
China 2School of Chemical Engineering, Zhengzhou University, P.R.
Compared to ideal homogeneous materials, microstructural discontinuities after pyrolysis considerably amplify local loads, undermining the overall mechanical stability.
This trend confirms that pore structure evolution during pyrolysis plays a key role in driving stress concentration effects.
The methodology developed here not only enhances understanding of structure–property relationships in high-temperature environments but also contributes to the design of advanced composite materials with improved reliability and service life.

The key problem of this method is how to make sure that the temporary road-bridge system runs safely.
Project overview Engineering profile.
Fig. 1 The general layout of a subway station's first line Engineering geology.
According to the engineering geologic report, following is the name, physico-mechanical parameters of every soil layer, as the table 1 shows.
[5] Junling Sun: Analysis and Research on Impact of Foundation Pit Rebound in Soft Soil Area on Engineering Pile, Journal of Railway Engineering Society, NO.10(2011), p.46-52 (in Chinese)

Material properties.
Pantelkis: Journal of Materials Processing Technology, 87:281-290(1999)
Edwardson: PhD thesis, Laser Group Department of Engineering the University of Liverpool, UK(2004)
Song : Journal of Engineering for Industry, 114(4):441-451(1992)
[10] S.Phadke: Quality engineering using robust design, prentice-Hall International, Inc., USA, 1989

The biggest one of the problems is idle computer resource, which further leads to waste of electricity, waste of material and environmental pollution.
The key technologies cloud computing depends on include data storage technology, data management technology, programming model and virtualization technology. 1.1 data storage technology To ensure high availability, high reliability and economical efficiency, cloud computing adopts distributed data storage and ensure reliability with the help of redundant storage.
It exists in the form of key-value pairs, and it’s stored on the servers of the data center where the bucket is.
In the BigTable, data items are arrayed in accordance with the Lexicographical order of key words, each row is distributed to the recording board dynamically.
Computer Engineering and Design, 2010, 31 (20)

Research on Shaking Table Test of Masonry Building with Rowlock Cavity walls Zhongfan Chena Fei Lub Yang Yuanc Shasha Miaod Southeast University, Key Laboratory of Concrete and Pre-stressed Concrete Structures of the Ministry of Education azhf-chen@tom.com blufei@seu.edu.cn cyuanyang@gedi.com.cn dwhatever5433@126.com Key words: Rowlock cavity wall, Residential houses, Shaking table test, Seismic capacity Abstract: Rowlock cavity wall was widely used in rural house in Southern Jiangsu Province from 1980s to 1990s.
Therefore, “Interim Provision for Works of Seismic and Disaster Prevention in Rural in Jiangsu” [1] specifies in article 9 that, new-built rural house should use the architectural materials, members, and structural systems with good seismic performance.
And it depends on material properties, stiffness, mass distribution and structural measures of structure[2].
References: [1] < Disaster-resistance interim provisions for rural areas in Jiangsu province > issued by People’s Republic of Jiangsu Government, Order No.30 1997 [2]< Structural dynamics > [M] Clough R W,Penzien J, Beijing:Science Press,1983 [3]< Theoretical studies and test analysis on strengthening method for rowlock cavity walls > Tian Shiming, Zhejiang University, 2007 [4]< Earthquake resistant engineering > [M] Feng Dingguo, Beijing:Earthquake Press,2005 [5]< Analysis of the Wenchuan earthquake and atlas for strengthening damaged structures > [M] Wang Fenglai, Beijing: China Architecture & Building Press ,2009:21-22 [6] < Suggestions on strengthening seismic performance of rural residential houses > issued by Department of Construction of Jiangsu Province[S], Order No.31 2007

But how to pick up the complete lifetime information from the failure data is the key problem, for nearly all the test specimen in the step-stress test experience cumulative failure [1-5].
Fatigue and Fracture of Engineering Materials and Structures, Vol.11 No.1 (1988), p. 2-6 [5] W Nelson: Accelerated Life Testing-Step-Stress Models and Data Analysis.
Research on Double-Crossed Step-Stress Accelerated Life Testing for Pneumatic Cylinder, Master Dissertation, School of Automation Science and Electronical Engineering, Beihang University, Beijing, China (2011) [9] H Chemoff: Optimal Accelerated Life Designs for Estimation.

Results comparison of alkali-reactivity tests for same aggregates, using a kinetic model GONZALEZ, Luis Mayor 1a*, SANTOS SILVA, António 2b, JALALI, Said 1c 1 Department of Civil Engineering, University of Minho, Guimarães, Portugal 2 Materials Department, National Laboratory for Civil Engineering, Lisboa, Portugal a lmgonzalez@mail.telepac.pt,b ssilva@lnec.pt, c said@civil.uminho.pt * Correspondence to: lmgonzalez@mail.telepac.pt Keywords: Expansion tests, reactivity, alkali-silica reaction, aggregates Abstract.
[6] Wigum, B.J., Pedersen, LT, Grelk, B, Lindgard, J.., “State-of-the art report: Key parameters influencing the alkali aggregate reaction”, Report 2.1, SINTEF, 2006

Preservation of Fresh Areca Nuts With Several Herbal Medicine Extracts Shi Zai-fenga, Chen Guang-yingb, Zhang Xiao-pengc, Qi Xiao-weid College of Chemistry & Chemical Engineering, Hainan Normal University, Haikou,.China 571158 aemail: zaifengshi@163.com, bemail: chgying123@163.com, cemail: zxp_inorganic@126.com, demail: qixw@163.com Keywords: Areca nuts; preservation; Chinese herbal medicine; extracts.
Materials and Method Extracts Preparation Leaves of four tropical plants were used to take extracts by soaked in solutions.
The key is that whether the treatment has antibacterial ability or not.
Food Engineering 78(2007), 225-229.

Nanostructured Mesoporous Thick Films of Titania for Dye-Sensitized Solar Cells John Wang, and Yu Zhang Department of Materials Science and Engineering, National University of Singapore Singapore 117576 e-mail: msewangj@nus.edu.sg Keywords-Dye-sensitized solar cells; supramolecular templating; mesoporous; titania; morphology Abstract—For energy harvesting, such as in dye-sensitized solar cells, thick films of nanostructured mesoporous titania are inevitably required.
The key component of DSSCs is the wide bandgap semiconductor as the photoanode that is required to possess large surface area for high dye loading and controlled nanostructure for efficient electron transport.
Grätzel, “Engineering of Efficient Panchromatic Sensitizers for Nanocrystalline TiO2-Based Solar Cells,” J.

Research on Aluminum Plate Reversible Hot-rolling Mathematical Model and Schedule Wang HaiXiong1,a, Li JiBin1,2,b, Liu HaiJun2,c, Wang ChangSheng2,d 1Key Laboratory for the Advanced Optical Manufacturing Technoloy of GuangDong, China 2mechatronics and Control Engineering College of ShenZhen University, Shenzhen, China awhx131@126.com, blijb@szu.edu.cn, cliuhaijun@163.com,dwangchangsheng1985@163.com Keywords: rolling schedule, mathematical model, two-roll reversible hot-rolling, strip rolling.
Many scholars and engineering technical personnel have paid more attention to the optimization of rolling schedule with the development of computer technology[1,2,3,4], and carried out many works, however, these works are only for steel rolling, and rolling process conditions of steel plate and aluminum plate is quite different, so these are not practical for hot-rolling production of aluminum plate.
The amount of width spread may be negligible, so the rolling force can be calculated with the Sims model [5,6]: (1) In the equation: is contact arc length, plate width, σaverage metal flow stress, force geometry factor; tension coefficient. 2.2 Rolling temperature model Rolling temperature not only affects rolling force, but also plays a decisive role on the internal organizational structure of the plate material, so temperature control of rolling process is very important.
In this figure, HFA and HFC is the last thickness when replace the maximum pass with the minimum pass , HIA and HIC is the exit thickness of intermediate pass when replace the maximum pass with the minimum pass , The key issue of this algorithm is to determine the HID point with the ordinate of A and C point.
Material is 1100 aluminum, and its size is 6000mm×1050mm×320mm.