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| 1 | COORDINATING PRICING AND INVENTORY DECISIONS IN A BOUNDED PRODUCTION SYSTEM WITH UNCERTAIN YIELD显示文摘Most inventory researches assume that production level can fluctuate arbitrarily. However, large fluctuation of the production level in many firms may be much costly. This paper addresses the coordinating pricing and inventory control problem in a bounded production system with uncertain yield, in which the production level is constrained between a maximum and minimum level in each period and the price can be adjusted dynamically. We show that the optimal policy is the interval base-stock-list-price policy. Also, we study the impact of the production bounds and uncertainty of the yield on the production system. Numerical experiments are also performed to study the impact of parameters on the system. | Juliang ZHANG Yongjian LI Minghui LAI | 2010 | Journal of Systems Science and Systems Engineering2010，19，4： | 2 |
| 2 | MICROSTRUCTURE AND MECHANICAL PROPERTIES OF Fe-Ni-Co-BASE SUPERALLOY AFTER LONGTERM AGING AT 650℃显示文摘The microstructure and mechanical properties of a Ni-Fe-Co base superalloy with lowthermal expansion coefficient after aging at 650℃ for 200,500,1000 and 2000 h have beeninvestigated.It was found that they are stable at 650℃.This alloy is believed to.fill the re-quirements for long time service to aircraft engine. | WANG Shuhe GUO Jianting LAI Wanhui GE Yunlong TAN Minghui LI Hui Institute of Metal Research,Academia Sinica,Shenyang,China | 1991 | Acta Metallurgica Sinica(English Letters)1991，4，3： | 2 |
| 3 | Optimal Acquisi- tion and Production Policy in a Hybrid Manufacturing/reman ufacturing System with Core Acquisition at Different Quality Levels显示文摘 | Xiaoqiang Cai Minghui Lai Xiang Li | 2014 | European Journal of Operational Research2014，233，2： | 1 |
| 4 | Influence of Superplasticizer Type and Dosage on Early-age Drying Shrinkage of Cement Paste with Consideration of Pore Size Distribution and Water Loss显示文摘We introduced a parameter r_s(the radius of the pores where the meniscus forms),which is composed of two factors,i e,water loss and cumulative pore size distribution(PSD),to provide a better explanation of the influence of superplasticizers(SPs)on early-age drying shrinkage.In our experiments,it is found that the addition of three types of SPs leads to a significant increase in the early-age drying shrinkage of cement paste,and drying shrinkage increases with the dosage of SPs.Based on the results above,we further studied the mechanism of the effects of SPs on the early-age drying shrinkage of cement paste by PSD and water loss,which are two components of r_s.The experimental results indicate that r_s can be a better index for the early-age drying shrinkage of cement-based materials with SPs than a single factor.In addition,the effects of SPs on other factors such as hydration degree and elastic modulus were also investigated and discussed. | 钱晓倩 YU Congdi ZHANG Lifeng QIAN Kuangliang FANG Minghui LAI Junying | 2020 | Journal of Wuhan University of Technology(Materials Science)2020，35，4： | 1 |
| 5 | MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A Ni_3Al-Fe BASED ALLOY显示文摘The microstructure,tensile properties at 20—950℃ and creep rupture properties at 700-900℃ in a Ni3Al-Fe based alloy after high temperature deformation have been studied.Theresults show the microstructure of the alloy is composed of γ′-and β-phases.The grain sizeand yield strength of the alloy is stable when the temperature≤600℃,and it is ductile athigh temperature.The creep of the alloy at 700—900℃ is controlled by the climbing of dislo-cations,and the activation energy for creep is 439 KJ/mol with a stress exponent of 4. | LI Hui GUO Jianting TAN Minghui SUN Chao LAI Wanhui WANG Shuhe Institute of Metal Research,Academia Sinica,Shenyang,China Professor,Institute of Metal Research,Academia Sinica,Shenyang 110015,China | 1993 | Acta Metallurgica Sinica(English Letters)1993，6，1： | 1 |
| 6 | EFFECT OF ALLOYING ELEMENT ON MECHANICAL PROPERTIES OF Fe_3 AL AND FeAI ALLOYS显示文摘The effect of alloying element such as Mo,Si or B and its stoichoimetric composition on thetensile properties at room and elevated temperatures,and also on the microstructure of Fe3Aland FeAl alloys has been investigated.Two Fe aluminides were found to be obviouslystrengthened by all of three elements,but seriously embrittled by Mo and Si.An improvemenover the plasicity of FeAl may be made by adding B,and the fracture surface is variedfromintergranular to transgranular cleavage type.The room temperature plasticity of the Fe-richFe3Al or Al-rich FeAl is much better than that of the stoichoimetric aluminides.An anoma-lous temperature dependence on the yield strength of Fe3Al in range of 400 to 500℃ or ofFeAl in range of 400 to 500℃ was found.Discussion has been carried out by the aspect ofmicrostructure. | GUO Jianting SUN Chao TAN Minghui LI Hui LAI Wanhui Institute of Metal Research,Academia Sinica,Shenyang,China Professor,Institute of Metal Research,Academia Sinica,Shenyang 110015,China | 1990 | Acta Metallurgica Sinica(English Letters)1990，3，4： | 1 |
| 7 | Optimal ac-quisition and production policy in a hybrid manufacturing/remanufacturing system with core acquisition at differentquality levels 显示文摘 | Cai Xiaoqiang Lai Minghui Li Xiang | 2014 | European Journal of Operational Re-search2014，233，2： | 1 |
| 8 | YNi_5 PHASE AND ITS EFFECT UPON PROPERTIES OF Ni_3Al ALLOY显示文摘An additive of Y to Ni3Al based alloy may form a phase YNi5 which increases in amount withthe increase of Y content.It was found that the YNi5 phase in Ni3Al alloy could remarkablymake its grains finer and its grain boundaries more crooked other than straight.If the Y con-tent≥0.1 wt-%,it occurs as solid solution state and is favorable to high temperaturecompressive properties and oxidation resistance of the alloy.While Y≥0.3 wt-%,the forma-tion of YNi5 is predominant in the shape of irregular strips inside Ni3Al grains and alongtheir grain boundaries.This seems to be quite harmful to high temperature strength,ductilityand oxidation resistance of the alloy. | WANG Shuhe GUO Jianting LI Hui SUN Chao TAN Minghui LAI Wanhui Institute of Metal Research,Academia Sinica,Shenyang,China | 1992 | Acta Metallurgica Sinica(English Letters)1992，5，3： | 0 |
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