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A Method of J Testing Based on Crack Opening Displacement for Circumferential Through-Wall Cracked Pipes under Combined Tension and Bending Nam-Su Huh 1,a , Ludwig Stumpfrock 1,b , Eberhard Roos 1,c , Yun-Jae Kim 2,d,* and Young-Jin Kim 3,e 1 MPA Stuttgart, University of Stuttgart 1 Pfaffenwaldring 32, D-70569, Stuttgart, Germany 2 Department of Mechanical Engineering, Korea University 1-5Ka, Anam-dong, Sungbuk-gu, Seoul 136-701, Korea Tel: +82-2-3290-3372, Fax: +82-2-926-9290 3 Safety and Structural Integrity Research Centre, Sungkyunkwan University 300 Chunchun-dong, Jangan-gu, Suwon, Kyonggi-do 440-746, Korea a nam-su.huh@mpa.uni-stuttgart.de, bludwig.stumpfrock@mpa.uni-stuttgart.de, ceberhard.roos@mpa.uni-stuttgart.de, d kimy0308@korea.ac.kr, eyjkim50@skku.edu Keywords: Circumferential Through-Wall Cracked Pipe, Combined Tension and Bending, Crack Opening Displacement, J Testing, Plastic η-factor Abstract.
Introduction One of the key aspects for the accurate Leak-Before-Break (LBB) analysis is to determine relevant J-resistance curve for nuclear piping.
For a material, two different materials were considered; a SA312 TP304 stainless steel showing continuous hardening behavior and a typical carbon steel showing discontinuous hardening behavior.
For both materials, uni-axial stress-strain data at the room temperature were taken, for which stress-strain curves are shown in Fig. 3.
For a given material, the true stress-plastic strain data, shown in Fig. 3, were directly given in the FE analysis and a small geometry change continuum FE model was employed.

A method for determination of penicillin G residue in Waste penicillium chrysogenum using high performance liquid chromatography Pu Wang1, a, Huiling Liu1,b *, Bing Wang1,c, Xiuwen Cheng2,d, Qinghua Chen3,e, Huan Fu1,f 1State Key Laboratory of Urban Water Resources and Environment (SKLUWRE); School of Municipal and Environmental Engineering, Harbin Institute of Technology 2College of Earth and Environmental Sciences, Lanzhou University, Tianshui Road 222, Lanzhou, Gansu 730000, China 3School of Resource and Environment, Qingdao Agriculture University, Changcheng Road 700, Qingdao, Shandong 266109, China awangpu1237@126.com, b757171397@qq.com, c703367924@qq.com, d285993071@qq.com, e 770330964@qq.com, f 1050724282@qq.com Keywords: Penicillin G; HPLC; waste penicillium chrysogenum; SPE Abstract.
Recently, more bulk manufacturing has moved to some developing countries, especially China, Korea and Indian, due to its low cost of labor, energy and raw materials cost.
Table 2 depicted that 5.0 mL deionized water presented higher interception efficiency on SPE column with 82.94% for PENG, which was attributed to reduced interactions between basic compounds and silanol group of HLB material under the participation of organic solvent in loading system strong.
Acknowledgments This work was financially supported by National environment protection public-spirited project (201209024), the Funds for Creative Research Groups of China (Grant No. 51121062) and State Key Laboratory of Urban Water Resources and Environment (2010DX03).
Chemical Engineering Journal. 175 (2011)539-547

Studies indicate that silver has a lower affinity for conventional spacer materials like polypropylene (PP) compared to copper.
· Long-term experiments for fouling tests are necessary to assess the stability of the coated materials
· The presence of hydrophilic or hydrophobic groups on the surface of materials may have opposing or complementary effects on surface roughness.
Kurniawan, Overcoming challenges in water purification by nanocomposite ceramic membranes: A review of limitations and technical solutions, Journal of Water Process Engineering 57 (2024). https://doi.org/10.1016/j.jwpe.2023.104613
Dosoretz, Antibacterial Efficiency of a Composite Spacer Containing Zinc Oxide Nanoparticles, Procedia Engineering 44 (2012) 581-582. https://doi.org/10.1016/j.proeng.2012.08.491

Dyuti 1, b 1 Department of Manufacturing and Materials Engineering, International Islamic University Malaysia, P.O Box-10, 50728 Kuala Lumpur, Malaysia ashahjahan@iiu.edu.my, bsdyuti_mme@yahoo.com Key words: TIG torch, powder preplacement, Energy input, Titanium nitride.
Introduction Surface modification includes all those techniques and processes which are used to improve the performance of an engineering surface [1].
Titanium powder (99.99 % purity) of 3μm size was used as the preplacement material.
When glazed with higher energy inputs with the same amount of titanium addition, the titanium concentration will dilute because more substrate material will melt and mixed to form the liquid melt.

Numerical Design of Stepped Compound Horn with Longitudinal-torsional Vibration under Single Acoustic Excitation Jianxin Zheng1, Jie Han1, Chuanshao Liu1 1School of Mechanical and Power Engineering, Henan Polytechnic University, 454003, China zhengjx@hpu.edu.cn Keywords: Longitudinal-torsional vibration; Finite element analysis; Ultrasonic; Stepped horn; Vibration characteristics.
The material of the horn is 45 steel, the density ρ is 7 700 kg/m3, Young's modulus E is 206 GPa, Poisson's ratio σ is 0.28.
The deviation might be caused mainly by the inconformity of the actual and supposed material mechanical properties of the horn.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (51005071), Doctors Gathering Plan for Enterprises in Jiangsu Province, China, Mechanical Engineering First Class Key Discipline of Henan Province, China, Youth Backbone Teacher Scheme of Henan Polytechnic University, and the high-performance computing platform of Henan Polytechnic University.
Liu: Applied Mechanics and Materials, Vol. 37-38 (2010), pp. 435-438

Molecular Dynamics Simulation of Surface Effect on Tensile Deformation of Single Crystalline Copper Qiang Gao1, a, Yongbo Guo1, b, Yingchun Liang1, c, Qingchun Zhang1, d 1School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, China, 150001 agaoqhit@gmail.com, byongbo.guo@gmail.com, cycliang@hit.edu.cn, dzqc@hit.edu.cn Key Words: Molecular dynamics, Tensile, Nano-rod, Surface effect Abstract.
Liang: Chinese Journal of Materials Research, Vol. 17 (2003) No.3, pp.262-267
[7] Nozaki T, Masao D and Kogurt Y: Materials Science and Engineering: A, Vol. 350 (2003) No.2, pp.233-237.

Advances in Numerical and Experimental Study of Dielectrophoretic Assembly of Carbon Nanotubes Shaohua Zhena, Libao Anb,* and Yanyan Liuc College of Mechanical Engineering, Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials, Hebei United University, Tangshan 063009, Hebei, China azhen_shaohua@163.com, b,*lan@heuu.edu.cn, cliu.yan0207@163.com Keywords: Carbon nanotubes, Dielectrophoresis, Assembly, Parameter.
Introduction As a new type of materials, carbon nanotubes (CNTs) have been studied for various applications in science and engineering fields such as electronics, biology, and medicine, due to their excellent electrical, mechanical and thermal properties [1].

Corrosion Inhibition Mechanism of the Inhibitor in Sedimentary Water of Storage Tank by AC Impedance Method ZHOU Yongzhang1,*, HE Xiaowei2, CHEN Dongsheng1, LIU Min1, YANG Chunyan1, WEI Wuji1 1College of Environment, Nanjing University of Technology,Jiangsu Key Laboratory of Industrial water-Conservation & Emission Reduction, Nanjing, Jiangsu, 210009, China 2 XinXiang Vocational and Technical College, Henan,453006, China * corresponding author: zhouyongzhang@126.com Keywords: tank sedimentary water; corrosion; corrosion inhibitor; corrosion inhibition mechanism; AC impedance Abstract.In order to study the corrosion mechanism of corrosion inhibitor on Q235 steel in tank sedimentary water, we prepared the simulation solution of sedimentary water which cintained : C1-10.0 g/L, SO42-1.0 g/L, HCO3- 0.75 g/L, Ca2+ 0.35 g/L, Mg2+ 0.2 g/L, according to the ion concentration under the condition of severe local corrosion. then the corrosion inhibitor was added into the solution, and
[6] Ren chengqiang, Zhang junping, Ziu daoxin, “Electrochemical Research on Inhibition Mechanism of Thiazole in Gas or Oil Field,” Materials for mechanical engineering, vol. 29, no. 3 pp. 22–25, 2005
[7] Liu jianping, Miao yongxia, Zhou xiaoxiang, “Corrosion Inhibition Performance of Acid Pickling Imidazoline Corrosion Inhibitor Compound,” Materials protection, vol. 38, no. 8, pp.22–24, 2005
[10] Guo Hao, Du cuiwei, Li xiaogang, Chen yunxiang, “Study of X70 Steel Corrosion Behaviors in Bicarbonate Solution,” Equipment environmental engineering, vol. 4, no. 3, pp. 40–43, 2007

Optimization of Glucosinolates Extracted from Maca(Lepidium meyenii) by Combined Ultrasonic and Microwave Extraction with Response Surface Methodology Chunzi LUO1,2,3,a,Hong Zhang1,2,b, Hua Zheng1,2,c, Jiayan Zhang3, Jin Gan1,2 1Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming, 650224, China 2Research Center of Engineering and Technology on Forest Resources with Characteristics, State Forestry Administration, Kunming, 650224, China 3College of Materials Engineering, Southwest Forestry University, Kunming, 650224, China a441571066@qq.com, bkmzhhong@163.com (corresponding author), chua-zheng@sohu.com Key words: ultrasonic; microwave; maca(Lepidium meyenii); glucosinolates Abstract: For better development of the function composition of maca, combined ultrasonic and microwave method was used to extract glucosinolates of maca in this paper.
Material and methods Material and chemical reagents a) Dry maca(Provided by Mid-Yunnan Highland Experiment Station, Research Institute of Resources Insects, Chinese Academy of Forestry); b) Sinigrin(Sigma Co.

Martin d’Hères, Cedex, France 2School of Physics and Materials Engineering, Monash University, Clayton, 3180, Vic., Australia 3McMaster University, Department of Materials Science and Engineering, Hamilton, Ontario, Canada ayves.brechet@ltpcm.inpg.fr, bhutchinson@spme.monash.edu.au, cpurdyg@mcmail.cis.mcmaster.ca, dzurobh@mcmail.cis.mcmaster.ca Keywords: Steel, Phase transformations, Diffusion Abstract.
The interfacial conditions are the key issue.