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Search Results: 1 - 10 of 39897 matches for " KONG Xiang-zhi "
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Soft incidence ring

YU Xiao-dan
, DONG Li, WU Cong, KONG Xiang-zhi

- , 2018, DOI: 10.6040/j.issn.1671-9352.0.2017.283
Abstract: 摘要: 将关联代数与软集相结合,提出新概念软关联环并研究它的基本代数性质;证明了两个软关联环同构当且仅当它们的基础软集同构,以及软关联环反同构等相关定理。
Abstract: The incidence ring will be associated to soft set to form a new concept, that is a soft incidence ring, whose basic algebraic properties are studied. Its shown that two soft incidence rings are isomorphic if and only if their basis of soft sets are isomorphic, soft incidence rings’ anti-isomorphism theorem and other related results are proved
Optimal Ordering Policy for Downward-substitute Perishable Products based on Variable Price

GUAN Zhen-zhong,BU Xiang-zhi,

系统工程理论与实践 , 2007,
Abstract: This paper analyzes the ordering policies on the full downward-substitute two generations perishable commodities at a discount.It also gives eloquent proof of the optimal conditions and the characters of the model.At the end,the paper finds a conclusion: Retailer can obtain more expected profit by selling substitutable products,ordering quantity of substituted products is positively correlative to the price discount,while ordering quantity of substitutable products is negatively correlation,expected profit is positively correlative to the price discount.
Mueller-Matrix-Based Differential Rotation Method for Precise Measurement of Fiber Birefringence Vector

LI Zheng-Yong,WU Chong-Qing,SHANG Chao,YU Xiang-Zhi,

中国物理快报 , 2010,
Optical time-domain differentiation based on intensive differential group delay

Li Zheng-Yong,Yu Xiang-Zhi,Wu Chong-Qing,

中国物理 B , 2011,
A Multi-scale Edge Detection Method Based on Modified Morphological Transform

BAI Xiang-zhi,ZHOU Fu-gen,

中国图象图形学报 , 2007,
Abstract: The key to edge detection is to filter more noises while obtaining more edge details.A new multi-scale morphological method of edge detection based on contour structuring elements is proposed in this paper.This method realizes a modified morphological transform through regrouping the priorities of several morphological transforms based on contour structuring elements firstly.And then a new edge detector is defined by using the multi-scale operation of the modified morphological transform.Comparative study with other morphological methods reveals its superiority over de-noising capacity,edge detail protection and un-sensitivity to the shape of the structuring elements.
2-tert-Butyl-1-(4-nitroamino-1,2,5-oxadiazol-3-yl)diazene 1-oxide
Xiang-Zhi Li,Bo-Zhou Wang,Xue-Zhong Fan,Seik Weng Ng
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812027353
Abstract: In the title compound, C6H10N6O4, the nitroamine –NHNO2 substituent and the C–N=N(→ O) unit of the other substituent of the oxadiazole ring are nearly coplanar with the five-membered ring [dihedral angles = 5.7 (1) and 3.0 (1)°]. The amino group of the –NHNO2 substituent is a hydrogen-bond donor to the two-coordinate N atom of the C—N=N(→ O) unit.
Liang Zhang,Di Sun,Xiang-Zhi Gao,Su-Yuan Xie
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809031547
Abstract: The title compound, C13H9BrO, has been synthesized by the intramolecular Friedel–Crafts reaction of 1-(1-bromo-4-naphthyl)-3-chloropropan-1-one. There are two approximately planar [maximum deviations of 0.8 (2) and 0.4 (2) in the two molecules] molecules in the asymmetric unit. The dihedral angle between their mean planes is 19.72 (8)°. Weak intermolecular C—H...O hydrogen bonding is present in the crystal structure.
Response of leaf structures of 8 plants to grazing prohibition in degraded grassland of Inner Mongolia

YU Xiang-Zhi,HE Xiao,ZHANG Tao,WANG Wei,

生态学报 , 2007,
Abstract: Representative communities of Artemisia frigida + Cleistogenes squarrosa which was the succession aberration of Leymus chinensis + Stipa grandis community were fenced in the Inner Mongolia typical steppe in 1983 and 1996 in order to observe the community succession processes.Eight predominant plants were collected from unfenced community(degenerated community),community fenced for 7 years and community fenced for 20 years.Leaf anatomical structures were compared to reveal the responses of plant leaf structures to grazing prohibition.It was showed: after fencing,the cuticle thickness,mesophyll cell density of leaves and leaf thickness of 5 species were lower than those before fencing,upper epidermis cells of Potentilla acaulis in community fenced for 20 years was smaller than those in degenerated community and in community fenced for 7 years,and the xerophytic characters of the leaves weakened.Plant leaves in degraded community did not fully reflect the xerophytic characters,or strengthened xerophytic characters.Based on the changes of leaf structures,it could be seen that tolerance to grazing in Potentilla acaulis was higher than those in the other species.Other indicators of leaf structure did not show the same trends.
Cross-cultural Study on Infant Word Learning

ZHU Li-Qi,MENG Xiang-Zhi,Twila Tardif,
,孟祥芝,Twila Tardif

心理科学进展 , 2011,
Abstract: Infant word learning is a hot topic in language development.Most research is working with English infants.Currently there are few studies on early language development with Chinese infants.Since Mandarin Chinese is different from English in many aspects,adults' input and non-linguistic cues all influence infant word learning,these may lead to different word learning pattern.This study aims to investigate Chinese and English infant word learning(including word comprehension and production) and adults' lingui...
Research on wireless sensor networks data aggregation on simulated annealing genetic algorithm

ZHANG Yang,YANG Song-tao,,ZHANG Xiang-zhi,

计算机应用研究 , 2012,
Abstract: This paper researched the wireless sensor network (WSN) data fusion. Sensor node computing ability and communication ability were limited. WSN used overlapping deployment, leading to large redundant data quantity, so as to use the data fusion technology to eliminate redundancy and invalid data, save network communication energy. Combination of genetic algorithm and simulated annealing algorithm for global search and local search advantages, this paper proposed a simulated annealing genetic algorithm ( SA-GA ) WSN data fusion method. By using simulated annealing genetic algorithm, it could quickly find the mobile agent routing optimal sensor node sequence and fuse the data. The simulation results show that, comparing with the genetic algorithm and simulated annealing algorithm, SA-GA can quickly find optimal data fusion node sequence, integrate the data effectively, and it has smaller energy consumption of the network and network delay.
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