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Especially for slender sections that exceed the width-to-thickness ratio limits specified in AISC 2017, it is necessary to consider the sectional resistance affected by local buckling.
Therefore, this study holds research value regarding the analysis of the width-to-thickness ratio design for T-sections in the AISC 2017 specification, particularly when considering factors related to slender sections and cross-sectional resistance.
The robustness of a section indirectly affects the overall stability of the component.
In Fig (1), a schematic diagram of the T-shaped section is presented, referring to the dimensions of the WT13.5×47 section and the corresponding required section properties provided in Table (1) by AISC.
Based on the conclusions drawn above, subsequent modeling will be established to analyze the scope of its physical and mechanical phenomena.

Second, the electrical properties of films subjected to post-fabrication thermal annealing were compared.
Dispersion of nanotubes was required in order to take advantage of the unique electromechanical properties of CNTs [10].
One of the main goals of this study was to investigate the electrical properties of this sprayed MWNT-based thin film.
As a result of this study, it was found that the spray-fabricated MWNT-based films exhibited fairly stable electrical properties.
Hwang, Carbon nanotube composites multi-sensing characteristics based on electrical impedance properties, J.

The effect of different continuous casting parameters on temperature fluctuation were analyzed, and the temperature fluctuation was considered to be a key factor to the formation of oscillation marks.
The initial solidified shell was affected by two aspects: force imposed on it[3] and heat transfer around it[4,5].
Therefore, temperature fluctuation may be a key factor to the formation of oscillation marks.
From the liquid surface to the 5mm below, the ITF kept changing all the while during mold oscillation, and the solidification in this area was strongly influenced by temperature fluctuation, resulting in the un-uniform of billet thickness and differences in mechanical properties, even the formation of oscillation marks or other surface defects.
Different continuous casting parameters were analyzed, temperature fluctuation maybe a key factor to the formation of oscillation marks.

A Box–Behnken design(BBD), one of RSM with three levels (3 factors and 3 levels) was employed to investigate the effects of ultrasonic time, ratio of water to raw material and ultrasonic power on the extraction yield of polysaccharides from Melaleuca ahemifolia.
These three factors were designated as X1, X2 and X3 and prescribed into three levels, coded +1, 0 and −1 for high, intermediate and low values, respectively.
Xi and Xj are the levels of the independent variables that represent the linear, quadratic and cross-product effects of the X1, X2 and X3 factors on the response, respectively.
Meanwhile, the ultrasonic power (X3) was the major factor affecting the yield of polysaccharides.The lack of fit measures the failure of the model to represent the data in the experimental domain at points which are not included in the regression.
Extraction and pharmacological properties of bioactive compounds from longan (Dimocarpus logan lour.) fruit-A review [J].

Experiment Study on Interchangeability of Multi-source Natural Gas for Domestic Appliance Zhiguang Chen 1, a, Chaokui Qin 1, b, Yangjun Zhang 1, c, Chunyan Tian 1, d College of Mechanical Engineering, Tongji University, Shanghai 200092, China achenzhiguang@tongji.edu.cn, bchkqin@tongji.edu.cn, czyjtongji@163.com, dtchyan316@163.com Keywords: natural gas, interchangeability, domestic appliance liquefied natural gas (LNG).
Through the testing result it can conclude that the heat load of domestic appliances changes consistently with Wobbe Index of gases; well-adjusted domestic appliances can interchange within the different source gases and without materially increasing in CO and NOx emissions, but the efficiency of gas appliance will be largely affected.
Table 1 Components and Properties of Natural Gases CH4 (%) C2H6 (%) C3H8 (%) C4H10 (%) CO2 (%) N2 (%) W(MJ/m3) Sichuan Natural Gas 96.00 0.70 0.20 0.10 2.30 0.70 48.3 Huizhou offshore Gas 85.99 9.61 0.20 0.00 3.60 0.60 48.8 Turkmenistan Gas 92.79 4.00 0.30 0.30 1.80 0.80 49.4 Yuexi LNG1 98.50 0.00 0.30 0.10 0.00 1.10 50.1 Zhuhai Lean LNG 97.00 1.90 0.30 0.10 0.00 0.70 50.6 Yuedong LNG 95.60 2.40 0.60 0.60 0.10 0.70 50.9 Yuexi LNG2 90.70 7.50 0.30 0.10 0.20 1.20 51.1 Liwan offshore Gas 84.40 4.70 2.40 5.20 0.90 2.40 52.4 Zhuhai Rich LNG 89.40 6.00 3.20 1.10 0.00 0.30 52.9 Dapeng LNG 86.60 9.00 2.90 0.90 0.10 0.50 53.0 Experiment Equipment.
The thermal efficiency of gas stoves is directly affected by structure of burner, secondary air supplying and some other factors.
GB/T 13611-2006 Classification and essential property of city gas[S].

So Green High Performance Concrete is the modern concrete inevitable result of technological development, it is the development direction of the concrete. 1.2 Research Progress of Green High Performance Concrete Under the premise of the mechanical properties of concrete,Green High Performance Concrete highlight two aspects of energy saving and emission characteristics.
Mechanical properties should be studied after preparation of a recycled aggregate concrete, in order to make reasonable and effective use of recycled aggregate concrete.
The method of measurement is the same as the normal concrete’s. 2.2.3 Durability index External influencing factor of recycled concrete’s durability are carbonization, freeze thawing, Permeability and fatigue loading, and so on,and internal influencing factors is mainly the mix proportion,the effect of cement-based materials’s physical and chemical changes and alkali-aggregate reaction(AAR) and so on
But in China,green concrete research is still in its infancy at present , and only a few units do a preliminary study of its properties and applications .
[9] Ippei M,Masaru S,Takahisa S,etal.Flexural properties Of reinforced concrete betas[C].

Introduction Increasing customer demands, shorter product life cycles, balancing between production costs and the quality level and punctuality of orders and finally strong competitive struggle, are factors, with which have to face companies operating in changing market conditions [1,2,3].
One of important elements of the new model is determining the material parameters that affect the process of designing new technology and production layout [14,15,16,17].
Next investigation should include the presented above problems to elaborate the comprehensive and complex MAS for designing production layout and problems considered with the mechanical properties of manufactured products [20,21].
Topolska, The effect of long-term service at elevated temperatures on structure and mechanical properties of Cr-Mo-V steel, Journal of Achievements in Materials and Manufacturing Engineering 49/1 (2011) 33-39
Sȩkala, Vibration analysis of mechanical systems with the discrete-continuous distribution of parameters, Solid State Phenomena 198 (2013) 698-703.

Stress corrosion cracking (SCC) is one of the most important questions about affecting chemical and oil equipment.
Welding residual stress is one of the main factors causing SSCC and SOHIC[5].
(3) In the same parent material under stress corrosion threshold stress intensity factor is greater than the KISCC of HAZ, showing the base metal properties of the sample resistance to SCC than the strength of HAZ.
Chinese Journal of Mechanical Engineering,2007 (9):117-122 [7] BUCHHEIM G M.
Effect of hydrogen environment on the notched tensile properties of T-250 managing steel annealed by laser treatment[J].

This phenomenon will be affected by molding process because of the following factors: uneven thickness of the multi-lumen catheter, the small size of the lumen and the complex cross section.
Its rheological properties are measured respectively by capillary rheometers at temperatures of 190-220 °C.
Rheological properties of different temperatures Temperature[°C] η∞ η0 λ n 190 0 403.711 0.02498 0.41738 195 0 371.397 0.02377 0.42346 200 0 343.974 0.02261 0.42954 205 0 322.804 0.02191 0.43410 210 0 295.234 0.02058 0.44162 215 0 249.560 0.01716 0.45810 220 0 192.518 0.01306 0.47754 The flow of polymer melt was simulated by Polyflow software.
According to theoretical studies, the traction velocity only changes the cross- sectional dimension of the catheter without affecting the cross-sectional shape of the catheter.
Orthogonal experimental factors and levels Factor Level 1 Level 2 Level 3 Level 4 Level 5 Head Temperature[°C] 190 195 200 205 210 Gas Pressure[Pa] 3386 4515 6020 7525 9030 Extrusion Rate[mm/s] 4.5 4.7 4.9 5.1 5.3 Traction Speed[mm/s] 33.83 36.00 38.33 40.50 42.83 The factors of orthogonal experiment were as follows: gas injection pressure, extrusion rate, head temperature and traction speed, and five orthogonal design tables of four levels of five levels were selected, as shown in Table 2.

This paper compares the results of several neutron diffraction and contour residual stress studies of different materials and analyses the results with respect to the different material properties and the type of phase transformation that occurred.
However in the heat affected zone the initial precipitates would have been dissolved by the heat from the laser and then re-precipitated by natural aging.
Table 1 – Physical and Phase Transformation Properties Melting Point (oC) Martensite Start (oC) Martensite Finish (oC) Elastic Modulus (GPa) Thermal Expansion (μm/m/oC) NAB 1035 500 150 115 16.2 Ti-6Al-4V 1604 994 575 113 8.6 The stress level at which the inflection occurs was found to be different for the two materials and can be attributed to a number of factors.
The particle precipitation state of AA7075 in the clad and heat affected zone affects the d0 spacing and it has been noted that the precipitation process can reduce residual stress through load sharing.
Withers, On the evolution of local matieral properties and residual stress in a three pass SA508 steel weld, Acta Materialia, 60 (2012) 3268-3278.