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| 1 | Weak minimum aberration and maximum number of clear two-factor interactions in 2_(IV)^(m-p)designs显示文摘 | YANG Guijun,LIU Minqian & ZHANG Runchu Department of Statistics, Tianjin University of Finance and Economics, Tianjin 300222, China Department of Statistics, School of Mathematical Sciences and LPMC, Nankai University, Tianjin 300071, China | 2005 | Science China Mathematics2005，48，11： | 12 |
| 2 | Some results on 4~m2~n designs with clear two-factor interaction components显示文摘Clear effects criterion is one of the important rules for selecting optimal fractional factorial designs,and it has become an active research issue in recent years.Tang et al.derived upper and lower bounds on the maximum number of clear two-factor interactions(2fi's) in 2n-(n-k) fractional factorial designs of resolutions III and IV by constructing a 2n-(n-k) design for given k,which are only restricted for the symmetrical case.This paper proposes and studies the clear effects problem for the asymmetrical case.It improves the construction method of Tang et al.for 2n-(n-k) designs with resolution III and derives the upper and lower bounds on the maximum number of clear two-factor interaction components(2fic's) in 4m2n designs with resolutions III and IV.The lower bounds are achieved by constructing specific designs.Comparisons show that the number of clear 2fic's in the resulting design attains its maximum number in many cases,which reveals that the construction methods are satisfactory when they are used to construct 4m2n designs under the clear effects criterion. | ZHAO ShengLi ZHANG RunChu LIU MinQian | 2008 | Science China Mathematics2008，51，7： | 7 |
| 3 | Bounds on the maximum numbers of clear two-factor interactions for 2^((n1+n2)-(k1+k2)) fractional factorial split-plot designs显示文摘Fractional factorial split-plot (FFSP) designs have an important value of investigation for their special structures.There are two types of factors in an FFSP design: the whole-plot (WP) factors and sub-plot (SP) factors,which can form three types of two-factor interactions:WP2fi,WS2fi and SP2fi.This paper considers FFSP designs with resolution Ⅲ or Ⅳ under the clear effects criterion.It derives the upper and lower bounds on the maximum numbers of clear WP2fis and WS2fis for FFSP designs,and gives some methods for constructing the desired FFSP designs.It further examines the performance of the construction methods. | ZI Xuemin ZHANG Runchu LIU Minqian | 2006 | Science China Mathematics2006，49，12： | 7 |
| 4 | Construction of optimal supersaturated designs by the packing method显示文摘A supersaturated design is essentially a factorial design with the equal occurrence of levels property and no fully aliased factors in which the number of main efits potential in factor screening experiments. A packing design is an important object in combinatorial design theory. In this paper, a strong link between the two apparently unrelated kinds of designs is shown. Several criteria for comparing supersaturated designs are proposed, their properties and connections with other existing criteria are discussed.A combinatorial approach, called the packing method, for constructing optimal supersaturated designs is presented, and properties of the resulting designs are also investigated.Comparisons between the new designs and other existing designs are given, which show that our construction method and the newly constructed designs have good properties. | FANG Kaitai GE Gennian LIU Minqian | 2004 | Science China Mathematics2004，47，1： | 4 |
| 5 | Some results on resolvable incomplete block designs显示文摘This paper is concerned with the uniformity of a certain kind of resolvable incomplete block (RIB for simplicity) design which is called the PRIB design here. A sufficient and necessary condition is obtained, under which a PRIB design is the most uniform in the sense of a discrete discrepancy measure, and the uniform PRIB design is shown to be connected. A construction method for such designs via a kind of U-type designs is proposed, and an existence result of these designs is given. This method sets up an important bridge between PRIB designs and U-type designs. | LIU Minqian & FANG Kaitai Department of Statistics, Nankai University, Tianjin 300071, China Department of Mathematics, Hong Kong Baptist University, Hong Kong, China | 2005 | Science China Mathematics2005，48，4： | 3 |
| 6 | Construction of column-orthogonal designs for computer experiments显示文摘Latin hypercube design and uniform design are two kinds of most popular space-filling designs for computer experiments. The fact that the run size equals the number of factor levels in a Latin hypercube design makes it difficult to be orthogonal. While for a uniform design, it usually has good space-filling properties, but does not necessarily have small or zero correlations between factors. In this paper, we construct a class of column-orthogonal and nearly column-orthogonal designs for computer experiments by rotating groups of factors of orthogonal arrays, which supplement the designs for computer experiments in terms of various run sizes and numbers of factor levels and are flexible in accommodating various combinations of factors with different numbers of levels. The resulting column-orthogonal designs not only have uniformly spaced levels for each factor but also have uncorrelated estimates of the linear effects in first order models. Further, they are 3-orthogonal if the corresponding orthogonal arrays have strength equal to or greater than three. Along with a large factor-to-run ratio, these newly constructed designs are economical and suitable for screening factors for physical experiments. | SUN FaSheng PANG Fang LIU MinQian | 2011 | Science China Mathematics2011，54，12： | 2 |
| 7 | Uniform supersaturated design and its construction显示文摘 | Kaitai Fang Gennian Ge Minqian Liu | 2002 | Science in China Series A: Mathematics2002，，8： | 1 |
| 8 | Individual Word Length Patterns for Fractional Factorial(Split-Plot)Designs显示文摘Fractional factorial(FF)designs are commonly used for factorial experiments in many fields.When some prior knowledge has shown that some factors are more likely to be significant than others,Li,et al.(2015)proposed a new pattern,called the individual word length pattern(IWLP),which,defined on a column of the design matrix,measures the aliasing of the effect assigned to this column and effects involving other factors.In this paper,the authors first investigate the relationships between the IWLP and other popular criteria for regular FF designs.As we know,fractional factorial split-plot(FFSP)designs are important both in theory and practice.So another contribution of this paper is extending the IWLP criterion from FF designs to FFSP designs.The authors propose the IWLP of a factor from the whole-plot(WP),or sub-plot(SP),denoted by the I_w WLP and Is WLP respectively,in the FFSP design.The authors further propose combined word length patterns C_(w) WLP and Cs WLP,in order to select good designs for different cases.The new criteria C_(w) WLP and Cs WLP apply to the situations that the potential important factors are in WP or SP,respectively.Some examples are presented to illustrate the selected designs based on the criteria established here. | HAN Xiaoxue CHEN Jianbin YANG Jianfeng LIU Minqian | 2023 | Journal of Systems Science & Complexity2023，36，5： | 0 |
| 9 | Process-microstructure-properties of CuAlNi shape memory alloys fabricated by laser powder bed fusion显示文摘Cu-based shape memory alloys(SMAs)show great potential in the application of high temperature,but their performance improvement combining with additive manufacturing is still challenging.In this paper,nearly defect-free(99.7%relative density)CuAlNi SMAs with two types of thermal-induced martensites,18R and 2H,were successfully fabricated by laser powder bed fusion(LPBF).The remelting printing strat-egy with systematic optimization framework including densification and printability analysis was used to get optimal process window.The twin-related self-accommodation structure with long period stacking order substructure was formed during additive manufacturing process.The as-build samples show excel-lent mechanical properties(ultimate compressive strength of 1593±10 MPa and large fracture strain of 23.0%±0.1%)with double-yielding,and outstanding shape memory effect,with maximum recoverable strain of 3.39% and nearly 100%recovery rate under compressive strain not exceeding 6%.Furthermore,the microstructural evolution in LPBF involving remelting,martensitic transformation,and 2H marten-site was discussed.This result not only builds the microstructure framework involving high reflectivity alloys and martensitic transformation but also provides insight into the applicability of LPBF process in producing Cu-based SMAs. | Yankun Zhang Lianyong Xu Lei Zhao Danyang Lin Minqian Liu Xueyan Qi Yongdian Han | 2023 | Journal of Materials Science & Technology2023，，21： | 0 |
| 10 | On Construction of Optimal Two-Level Designs with Multi Block Variables显示文摘当运用一个实验时,试验性的单位的不同类可以导致处理效果的差的评价。因此,在运用实验前选择一个好堵住的图案是合乎需要的。主要,一个单个块变量在文学被使用为简洁对待不同类。在实践,然而,不同类经常来自多堵住变量。最近,称为 B 2-GMC 的一个新标准为二水平的常规图案被建议与多堵住变量。这份报纸在第一次构造一些 B 2-GMC 图案上建议一个系统的理论。实验者们能容易根据构造方法获得 B 2-GMC 图案。B 2-GMC 图案的职业人员在节 4 被加亮,并且有小跑尺寸的图案为实际使用在附录 B 被公布。 | ZHAO Yuna ZHAO Shengli LIU Minqian | 2018 | Journal of Systems Science & Complexity2018，31，3： | 0 |
| 11 | Invaluable Trust A Visit to Bernice Hemphill, an Old Friend of ACWF显示文摘IN March of last year, on my way to New York to attend the NGO Consultation, I stopped in San Francisco. Before I left I called Bernice. She told me she was not well. Before I went to America again in June of this year to visit some of my relatives, I asked my ex-colleagues at the International Liaison Department of the All-China Women’s Federation | HONG LIU Guan Minqian is the former chief of the International Liaison Department of the All-China Women’s Federation | 1996 | Women of China1996，，12： | 0 |
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