Search results

Effect of Post Weld Heat Treatment and Filler Metal on the Microstructure, Mechanical Properties, and Corrosion Resistance of Dissimilar Welds between Carbon Steel and Stainless Steel Junjira Junpattanasit1,a Jednupong Palomas2,b, Attaphon Kaewvilai1,c and Chayanee Tippayasam1,c* 1Department of Welding Engineering Technology, College of Industrial Technology, King Mongkut’s University of Technology North Bangkok, 1518 Pracharat 1 Rd., Bangsue, Bangkok, 10800, Thailand 2Department of Materials Engineering and Production, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok, 1518 Pracharat 1 Rd., Bangsue, Bangkok, 10800, Thailand aPianojunjira@gmail.com, bj.s.palomas@gmail.com, cattaphon.k@cit.kmutnb.ac.th, cchayanee.t@cit.kmutnb.ac.th Keywords: Dissimilar welding, Carbon steel, Stainless steel, Post weld heat treatment (PWHT), Gas tungsten arc welding (GTAW), Mechanical properties, Microstructure, Corrosion resistance.
Pipeline-grade materials (ASTM A106 Gr.
Materials and Method Materials and Consumables.
The chemical composition and mechanical properties of all base and filler materials are summarized in Table 1 and Table 2.
Kaewvilai, Welded stainless steel: Surface oxidation, characterization, hardness and corrosion resistance, Key Eng.

Control of the Flight Vehicle Cable over Wide Spectrum Radiation Effects Simulation Experiment Research Yi Lv College of Mechanical and Electronic Engineering, Eastern Liaoning University, Dandong 118003, China; ddlvyi@163.com Keywords: Emc, electromagnetic environment effect, super wide spectrum high power microwave, strengthening protection Abstract.
Common mode current amplitude with the increase of the field radiation (irradiation distance of the reduction of) and increase, this and the results of consistent trend; And differential mode voltage in the simulation calculation, as the control of the wire materials, line diameter, the length of the same sex, and in close by spacing is small, so the calculation results of 0 V.
High Voltage Engineering, 2006, 32(11): 78-80
Shijiazhuang: Ordnance Engineering College, 2007
Journal of Ordnance Engineering College, 2008, 20(2): 36-38.

Interior Ballistics Simulation of Modular Charge Gun System Using Matlab Lingke Zhang1,Yonggang Yu1, Xin Lu1 1School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing,Jiangsu Province, China nustzlk@126.com Keywords: Simulation; Matlab; gun; interior ballistic; modular charge Abstract.
The key of engineering application is to determine the charge construct and modular chare elements.
Because there are more than two types of charge, the program is designed to add flexibly calculation model according to practical engineering need.
William, "Modular Artillery Charge System (MACS) Compatibility with the 155-mm M114 Towed Howitzer," Army Armament Research Development and Engineering Center Picatinny Arsenal NJ ARAEW-TR-04009 (ADA427052), 2004
Wang, "Modular Charge Technology and Development," in Proceedings of 2004 National Symposium on Development and Application of Energetic Materials(1), Xiamen,China, 2004.

Jingshui Huang1, a, Yue Wen2,*, Asheng Cao, Haisong Li and Qi Zhou 1 Room 209, Shengtai Building, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China. 2 Room 301, Mingjing Building, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China.
Materials and methods 2.1 Aerobic sequencing batch reactors (SBRs) The laboratory experimental system consists of three parallel SBRs (total and effective volume: 4.0L/each, respectively), operated at 25°С & 35°С & 55°С.
Table 2 Zeta potential, contact angle and several parameters about surface properties 1#（25°С） 2#（35°С） 3#（55°С） sludge-water contact angle（°） 28.8 25.2 19.2 sludge-formamide contact angle（°） 25.8 21.5 18.0 sludge-1-bromonaphthalene（°） 36.6 34.9 37.4 （mJ·m-2） 36.1 36.7 35.7 （mJ·m-2） 14.4 15.2 16.9 （mJ·m-2） 17.4 17.9 19.2 （mJ·m-2） 31.7 33.0 35.9 1.14 1.11 0.99 ABLB（J） 3.32E-21 3.6E-21 3.19E-21 G（mJ·m-2） -4.39 -3.75 -2.52 Zeta potential（mV） -10.57 -17.05 -5.94 particle size（μm） 36.41 43.83 34.99 The sludge-water contact angle means a lot in practical engineering applications, for it can show the hydrophobicity of the sludge and thus reflect the AS flocculability indirectly.
Acknowledgements This work was financially supported by the Key Special Program on the S&T for the Pollution Control and Treatment of Water Bodies of China (2008ZX07316-002).
In Graduate Department of Chernical Engineering & Applied Chemistry.

Model Test Research on Bearing Behavior of Pile-Net Composite Foundation in Super Large Area and Deep Soft Soil Jinjiang YU1,2, a, Qiangong CHENG1, b, Chenghui LI1, c, Jiujiang WU1,d, Hua WEN3, e 1 College of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China 2 China Railway 19 Bureau Group Co.
LTD, Liaoyang 111000, China 3College of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China; a47702099@qq.com, bchengqiangong@home.swjtu.edu.cn, cchli163chli@163.com, dwujiujiang123@126.com, ewenhua189@163.com Keywords: soft soil, pile-net composite foundation, bearing behavior, physical model test Abstract: Based on the treatment of in-situ foundation, two distinct model tests for pile-net composite foundation in super large area and deep soft soil with different pile spacing were designed to study the bearing behavior of the piles.
For its high natural water content (approaching or exceeding liquid limit), large void ratio (normally more than 1), high compression, structural tendency and being easy disturbed, low permeability and shear strength, and small deformation modulus, it’s necessary to control it for overcoming its bad engineering character and meeting some needs.
Based on the existing engineering experiences and theory research theory, Rao Weiguo[2] defined pile-net composite foundation, revealed its property and application vista, and analyzed its formation and work mechanism.
Fig.2 Arrangement of strain gauge in pipe pile(unit: mm) Fig.3 Layout of testing components(unit: mm) 2.2.3 Loading scheme for embankment The embankment loading is affected by raw material supply, changing weather and some other factors, and there is no fixed law.

Lanthanum modified catalyst for efficient supply of hydrogen through dehydrogenation of organic chemical hydrides Gangli Zhu, Tao Chen, Xuedong Jiang, Hailiang Zhang, Bolun Yang* Chemical Engineering Department, State Key Laboratory of Multiphase Flow in Power Engineering Xi’an Jiaotong University, Xi’an 710049, China * Corresponding author: blunyang@mail.xjtu.edu.cn Keywords: organic chemical hydrides; dehydrogenation; La; economical catalyst.
The instrument was calibrated by standard carbon black according to American Society of Testing Materials (ASTM D3324-92).
Iba: 2010 45th International Universities Power Engineering Conference (UPEC 2010), IEEE Press, p. 5 [2] CE.
Kuwano, et al.: Chemical Engineering Science Vol.63(2008), pp. 4935-4941 [10] NS.Wade, PC.

Project overview Hekoucun Reservoir is located at the last valley mouth of Qinhe River, the first level tributary at the Yellow River, about 9km to the downstream Wulongkou Hydrological Station, in Kejing Township, Jiyuan City, Henan Province, as a key engineering in controlling the flood and runoff at Qinhe River as well as an important part of flood prevention engineering system in the lower Yellow River.
In order to meet roughness requirements, No. 1 flood discharging tunnel adopts organic glass material, due to high water head of the model, special high steel plate tank (5m×5m×4m L×W×H) is used to stimulate the natural reservoir, and cement mortar powder is used to stimulate the local terrain near the outlet.
It is seen from Table 1, when the reservoir water level is at 285.43m, water flow cavitation of tunnel body between the 0+068.7m～0+173.6m pile is lower than 0.3, but tunnel sectional flow speed is larger, taking Qinhe being sediment-laden river, it is suggested to adopt the material with erosion resistance and good wear-resisting property and the leveling shall be strictly controlled.
[2] Hydraulics of Wuhan Institute of Hydraulic and Electric Engineering pressed.
[3] Hydraulics of Wuhan Institute of Hydraulic and Electric Engineering pressed.

A new type of hexagonal fault-tolerant clustering algorithm Jie tian1,a , Ming Yu Luo2,b, Meng Yang Chen2,c 1Department of Informational Engineering in Engineering University of Armed Police Force, Xi’an, China 2,3 Engineering University of Armed Police Force, Xi’an, China atianj70@sohu.com;b1107427956@qq.com;c121742501@qq.com Keywords: hexagon; fault-tolerant; clustering Abstract.
Although HFTC has these advantages, how to adjust the node density for guarantying the hexagon establishment is the key of the later research.
Computer&Digital Engineering(2012) [3] Hongyan Zuo.
MEIEI(2013), Applied Mechanics and Materials Vols.427-429

Chiam1,d, Norfarariyanti Parimon1,e, Chai Chang Yii1,f, Lorita Angeline1,g, Achmad Syaifudin4,h, Widyastuti5,i 1Faculty of Engineering, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia 2Faculty of Mechanical Engineering & Technology, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia 3Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000 Kangar, Perlis, Malaysia 4Faculty of Medicine and Health, Institut Teknologi Sepuluh Nopember, 60111 Surabaya, Indonesia 5Department of Material and Metallurgical Engineering, Institut Teknologi Sepuluh Nopember, 60111 Surabaya, Indonesia anurafnan@ums.edu.my, *buda@ums.edu.my, cnuraiman@unimap.edu.my, dclairechristabel@gmail.com, efara2012@ums.edu.my, fchaichangyii@ums.edu.my, gangeline.lorita@ums.edu.my, hsyaifudin@its.ac.id, iwiwid@its.ac.id Keywords: amperometric, biosensor, low noise, millivolt, nanoampere, non-inverting amplfier.
Material and Methods Apparatus.
By integrating a MAX4238 operational amplifier for signal amplification, a high-resolution ADS1115 ADC for analog-to-digital conversion, and a NodeMCU microcontroller for data processing and display, the proposed system addresses key challenges in low-current biosensing, including signal amplification, power efficiency, and noise reduction.

The Use of Biotreatment Technology to Dispose of Offshore Drilling Waste Oily Fluids Zhiyong Li1,a, Shuixiang Xie1,b, Guancheng Jiang1,c, Mutai Bao2,d, Zhili Wang3,e Xianbin Huang1,f Fan Xu2,g 1 College of Petroleum Engineering, China University of Petroleum(Beijing), China 2 Ocean University of China, Qingdao, China 3 Luming Oil Technology Exploration Co,.Ltd, Shengli Oilfield of China Sinopec Group, Dongying, China a lzysoar11@163.com,b hbxsx@163.com, c jgc5786@126.com, d baomutai@163.com, e wangzhili@sohu.com, f 634640236@qq.com, gxufan4244@163.com Keywords: Offshore drilling, Bioremediation, Oil-based drilling fluid, Hydrocarbon degrading bacteria Abstract Disposing of oil-based drilling fluid with biotreatment technology has many advantages: it is only 30-50% of the expense of conventional chemical or physical processing technologies, has a low impact on the environment, with no secondary pollution, and utilizes local control and entails simple operations.
Experimental Instruments and Materials Experimental Instruments The main experimental instruments utilized included the following: E14130 type electron balance (Swiss OHAUS Corp.), HZQ-X100 type oscillation incubator (Harbin Donglian Electronic & Technology Development Co., Ltd. of China), Water-bath oscillator (Harbin Donglian Electronic & Technology Development Co., Ltd. of China), WH-Z microlabroller rotators (Shanghai Luxi Analytical Instruments Co., Ltd.), vertical pressure steam sterilizer (Shanghai Huaxian Medical Nuclear instruments Co., Ltd.), anatomical lens (Japanese Nikon Corporation), stainless steel electrothermal distilled water generator (Shanghai Boxun Co., Ltd Medical Apparatus Factory), VS-840-KU type clean bench (Jiangsu Antai Air Technology Co., Ltd.), PHS-3C type precise pH-meter (Shanghai Leici Instrument Inc.), BX50 type microscope (Japanese Olympus Optical Co., Ltd) and CARRY 50 type ultraviolet spectrophotometer (Australian Varian Co., Ltd).
Experimental Materials The Biochemical Reagent (BR) was composed of the following: glucose, yeast powder, peptone, urea, saccharose, beef extract and high-temperature agar.
Acknowledge Supported by National Natural Science Foundation of China（Project No. 50904074）and Key Special Subjects for China National Petroleum Corporation “Overseas Oil & Gas Exploration & Comprehensive Matching Techniques”（Project No.2008E-1601） Reference [1] Kriipsalu,M., Marques, M., Nammari,D.R., et al.2007.
Bio-treatment of oily sludge: The contribution of amendment material to the content of target contaminants, and the biodegradation dynamics.