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在弹性需求和物品易变质条件下数量折扣定价模型

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管理学报 2007年第2期4卷 163-168页

作者：覃毅延郭崇慧大连理工大学运筹学与管理科学研究所

研究在弹性需求和易变质物品条件下,当供应商和零售商独自决策时,供应商如何确定最优数量折扣问题。基于Stackelberg博奕建立了数学模型,证明了零售商的出售价格随供应商出售价格的降低而降低,从而需求量增大。当供应商给予价格折扣时,... 详细信息

研究在弹性需求和易变质物品条件下,当供应商和零售商独自决策时,供应商如何确定最优数量折扣问题。基于Stackelberg博奕建立了数学模型,证明了零售商的出售价格随供应商出售价格的降低而降低,从而需求量增大。当供应商给予价格折扣时,零售商的利润是增加的。在此基础上,给出了最优数量折扣的计算方法。对供应商和零售商单独决策时,供应商利用数量折扣对供应链进行协调产生的系统利润与供应商和零售商联合决策时的系统利润做了数值分析和比较。结果表明,供应商采用数量折扣的方法使供应链协调是有效的;价格折扣随价格敏感系数的增大而增大,随变质率的增大而减小。

关键词：数量折扣协调易变质物品库存供应链管理

神经节苷脂治疗新生儿缺氧缺血性脑病对患儿血清炎症相关细胞因子和MMP-9的影响

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河北医药 2018年第2期40卷 219-223页

作者：果崇慧杨青河北省秦皇岛市工人医院 066000 河北省秦皇岛妇幼保健院

目的观察神经节苷脂治疗新生儿缺氧缺血性脑病(HIE)对患儿血清炎症相关细胞因子、基质金属蛋白酶-9(MMP-9)的影响。方法将106例HIE患儿根据就诊顺序分为治疗组(n=61)和对照组(n=45),对照组行常规治疗联合亚低温、胞二磷胆碱注射液治疗,... 详细信息

目的观察神经节苷脂治疗新生儿缺氧缺血性脑病(HIE)对患儿血清炎症相关细胞因子、基质金属蛋白酶-9(MMP-9)的影响。方法将106例HIE患儿根据就诊顺序分为治疗组(n=61)和对照组(n=45),对照组行常规治疗联合亚低温、胞二磷胆碱注射液治疗,治疗组行常规治疗联合亚低温、注射用单唾液酸四己糖神经节苷脂钠治疗,治疗10 d。检测2组治疗前后血清炎症相关因子[白介素(IL)-6、IL-10、肿瘤坏死因子-α(TNF-α)、IL-1β]、MMP-9、血管内皮生长因子(VEGF),进行新生儿神经行为测定(NBNA),统计临床总有效率。结果治疗组总有效率为80.33%,对照组为64.44%,治疗组临床疗效优于对照组(P<0.05)。在治疗过程中治疗组反射、吮吸、肌张力及意识恢复时间均早于对照组,差异有统计学意义(P<0.05)。与治疗前相比,治疗后2组患儿血清炎症相关因子TNF-α、IL-6、IL-1β、IL-10水平均显著下降,MMP、VEGF水平下降,NBNA评分升高,差异有统计学意义(P<0.05)。治疗后,治疗组TNF-α、IL-6、IL-1β、IL-10、MMP、VEGF低于对照组,NBNA评分高于对照组,差异均有统计学意义(P<0.05)。结论神经节苷脂治疗HIE疗效确切,可能与其能调节血炎性细胞因子的水平有关。

关键词：神经节苷脂新生儿缺氧缺血性脑病炎症因子 MMP-9

基于词典法和机器学习法相结合的蛋白质名识别

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计算机与应用化学 2006年第5期23卷 395-398页

作者：李刚郭崇慧林鸿飞杨志豪唐焕文大连理工大学应用数学系辽宁大连116024 大连理工大学计算机科学与工程系辽宁大连116024

生物实体名识别对生物医学文献的信息抽取有重要的意义。本文针对如何识别蛋白质名进行了有益的尝试,主要采用了基于词典的方法,其中运用了近似搭配算法和首词查询的方法进行蛋白质名识别,同时结合机器学习方法训练了一个分类器来过滤... 详细信息

生物实体名识别对生物医学文献的信息抽取有重要的意义。本文针对如何识别蛋白质名进行了有益的尝试,主要采用了基于词典的方法,其中运用了近似搭配算法和首词查询的方法进行蛋白质名识别,同时结合机器学习方法训练了一个分类器来过滤候选词以提高识别的准确率。

关键词：候选词编辑距离分类器

基于属性依赖度分析的粗糙集数据挖掘方法应用

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沈阳建筑大学学报（自然科学版） 2009年第5期25卷 1009-1013页

作者：韩忠华刘春光王长涛国崇珲廖廷悟沈阳建筑大学信息与控制工程学院辽宁沈阳110168 沈阳建筑大学学报编辑部辽宁沈阳110168 辽宁省机械研究院有限公司辽宁沈阳110032 中国人民银行海口中心支行海南海口570105

目的采用粗糙集中的属性依赖度分析方法对胶合板缺陷检测数据进行分析,获得各属性对决策的不同作用,并得出各属性间的依赖关系.方法采用粗糙集属性依赖度分析方法对实验数据进行有效分析,挖掘出对决策分析影响大的属性,去掉对决策分析... 详细信息

目的采用粗糙集中的属性依赖度分析方法对胶合板缺陷检测数据进行分析,获得各属性对决策的不同作用,并得出各属性间的依赖关系.方法采用粗糙集属性依赖度分析方法对实验数据进行有效分析,挖掘出对决策分析影响大的属性,去掉对决策分析影响小的冗余属性,构造数据挖掘模型.结果从胶合板缺陷检测数据中挖掘出各属性对决策分析的影响程度以及各有关属性间依赖关系的知识,在胶合板缺陷检测数据集的17个属性中,得到了3个重要属性,5个对决策影响较小的属性.结论基于粗糙集属性依赖度的数据挖掘方法提高获取规则的快速性,降低计算的复杂度,增强规则的可解释性,取得良好的研究结果.

关键词：数据挖掘粗糙集属性依赖度胶合板缺陷检测

Two new approaches to dividing flood sub-seasons in flood season using the fractal theory

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Chinese Science Bulletin 2010年第1期55卷 105-110页

作者： FANG chonghui guo ShengLian DUAN YaHui DUONG Ductien State Key Laboratory of Water Resources and Hydropower Engineering Wuhan University Wuhan 430072 China Hubei Institute of Water Conservancy & Hydropower Engineering Survey Exploration Design Wuhan 430064 China Vietnam Water Resources University Hanoi Vietnam

This paper is an attempt to analyze the hydrological phenomena’s non-linearity, randomicity, credibility and similarity. In the same season each year, the flood hydrograph is self-similar and exhibits fractal characteristics. It is an argument about using fractal theory. This paper presents two new approaches to dividing flood sub-seasons by using the fractal theory. Two approaches to calculating fractal dimensions are both the magnitude measurement in the temporal scale and the similarity measurement in the spacial scale. This paper chooses the sample series of the daily maximum discharge in the flood season from 1960 to 2002 at the Zhanghe Reservoir. Both results of the two new approaches to dividing flood sub-seasons by using fractal theory are the same. Both results of dividing flood-periods by using the fractal theory are uniform with the traditional approach. Compared with the traditional approach, fractal approaches have quantitative and objective characteristics and are convenient in calculation, and are widely used in practice.

关键词：分形理论洪水过程汛期自相似性传统方法相似性度量水文现象分形特征

The Effects of WC on the Microstructures and Wear Resistance of FeCoCrNiB_(0.2) High Entropy Alloy

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Journal of Wuhan University of Technology(Materials Science) 2023年第2期38卷 416-422页

作者： BAO Yefeng guo Linpo ZHONG chonghui XIE Bingqi WANG Zirui SONG Qining JIANG Yongfeng College of Mechanical and Electrical Engineering Hohai UniversityChangzhou213022China Zhejiang Sanhua Automotive Components Co. LtdHangzhou310018China

To improve the wear resistance of the FeCoCrNiB_(0.2)high entropy alloy(HEA),the FeCoCrNiB_(0.2)(WC_(0))and FeCoCrNiB_(0.2)+20wt%WC(WC_(20))HEA coatings were prepared on Q235 steel by laser cladding(LC).The microstructure,hardness,and tribometer of the HEA coatings were investigated using scanning electron microscopy with spectroscopy(SEM/EDS),X-ray diffraction(XRD),vickers microhardness tester,and pin-on-disc tribometer,*** experimental results show that the WC0HEA coating comprises a simple BCC phase mixed with an M_(2)B *** 20wt%WC,the WC_(20)HEA coating is composed of a simple BCC phase mixed with the Cr_(23)C_(6)carbide *** microstructure of the WC_(20)HEA coating is simple,which consists of equiaxed grain and *** microhardness also increases from 625.5HV to 806.0HV,and the wear mass loss correspondingly decreases from 30.9 to 14.9 mg.W and C atoms formed by WC dissolution are mainly dissolved in the BCC phase,which leads to the solution strengthening ***,Cr_(23)C_(6)carbides inhibit the growth of the grains,play the role of fine-grain strengthening,and further improve the hardness and wear resistance of the HEA coating.

关键词： high-entropy alloys laser processing and cladding microstructures hardness wear-resistance

Microstructure and Wear Resistance of Fe_(4)CoCrNiB_(0.2)Mo_(x)(x=0,0.5,1) High Entropy Alloys

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Journal of Wuhan University of Technology(Materials Science) 2022年第2期37卷 261-269页

作者： BAO Yefeng guo Linpo ZHONG chonghui SONG Qining YANG Ke JIANG Yongfeng WANG Zirui College of Mechanical and Electrical Engineering Hohai UniversityChangzhou 213002China

To improve the wear resistance of Fe_(4)CoCrNiB_(0.2) high-entropy alloy(HEA),the Fe_(4)CoCrNiB_(0.2)Mo_(x)(where,x in Fe_(4)CoCrNiB_(0.2)Mo_(x) is a molar content,and the value is 0,0.5,1,respectively)HEAs were prepared on the Q235 substrate by laser *** structure,hardness,and wear resistance of Fe_(4)CoCrNiB_(0.2)Mo_(x) HEAs were investigated using scanning electron microscopy with spectroscopy(SEM/EDS),X-ray diffraction(XRD),Vickers microhardness tester,and pin-on-disc *** influences of Mo content on the phase structures and mechanical properties of Fe_(4)CoCrNiB_(0.2)Mo_(x) HEAs are *** experimental results show that the Fe_(4)CoCrNiB_(0.2)Mo_(x) HEA cladding layers are composed of a simple BCC phase mixed with M_(2)B phase,BCC phase,and BCC+FCC dual-phase,*** wear resistance and hardness of the Fe_(4)CoCrNiB_(0.2)Mo HEA sample are 2 and 1.35 times those of the Fe_(4)CoCrNiB_(0.2) HEA sample,*** microhardness and wear resistance of the Fe_(4)CoCrNiB_(0.2)Mo_(x) HEAs increase with the increase of Mo *** is found that the Fe_(4)CoCrNiB_(0.2)Mo_(x) HEA cladding layers are mainly strengthened by the solid solution strengthening and fine-grained strengthening.

关键词： SEM XRD high-entropy alloys laser cladding

阿拉伯木聚糖-甘薯淀粉复合体系理化特性表征

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食品与发酵工业 2024年第11期50卷 225-232页

作者：秦志鹏韩四海李佩艳刘建学岳崇慧王萍郭金英白周亚罗登林河南科技大学食品与生物工程学院河南洛阳471023 河南省食品原料工程技术研究中心河南洛阳471023

探究了阿拉伯木聚糖(arabinoxylan,AX)-甘薯淀粉(sweet potato starch,SPS)复合体系的糊化、质构、流变和水分迁移等理化特性。添加不同浓度的AX代替等量淀粉配置成复合体系,利用布拉班德黏度仪、扫描电子显微镜、流变仪等分析手段,对AX... 详细信息

探究了阿拉伯木聚糖(arabinoxylan,AX)-甘薯淀粉(sweet potato starch,SPS)复合体系的糊化、质构、流变和水分迁移等理化特性。添加不同浓度的AX代替等量淀粉配置成复合体系,利用布拉班德黏度仪、扫描电子显微镜、流变仪等分析手段,对AX-SPS复合体系的理化特性进行表征。结果表明,与天然SPS相比,AX-SPS复合体系的黏度值、回升值、崩解值降低,糊化温度有所升高;随着AX添加比例的增大,淀粉凝胶断层表面粗糙且孔洞增多;静态流变学分析表明,AX-SPS复合体系均为典型剪切稀化的假塑性流体,并随着AX添加比例的增大,假塑性行为有所减弱;动态流变学分析表明AX的添加降低了复合体系的储存模量(G′)和损耗模量(G″);质构和低场核磁分析表明,AX的加入降低了SPS凝胶的硬度、弹性,改善了质地,提高了保水性;红外光谱分析表明,AX添加量的增加使淀粉的双螺旋结构和有序性破坏程度增大,复合体系氢键作用力增强。综上,AX的添加改善了SPS的糊化、流变、质构和持水性等理化特性,使SPS在食品、医药及化工等领域具有更广阔的应用前景。

关键词：阿拉伯木聚糖甘薯淀粉复合体系理化特性

The age of the base of the Paleoproterozoic Hutuo Group in the Wutai Mountains area, North China Craton: SHRIMP zircon U-Pb dating of basaltic andesite

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Chinese Science Bulletin 2010年第17期55卷 1782-1789页

作者： DU LiLin YANG chonghui guo JingHui WANG Wei REN LiuDong WAN YuSheng GENG YuanSheng Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China Beijing SHRIMP Center Beijing 100037 China

Basalt and basaltic andesite metamorphosed at greenschist facies occurs with conglomerate layers at the bottom of the Paleoproterozoic Hutuo Group in the Wutai Mountains area, North China Craton. Detailed geological surveying confirms that these volcanic rocks are conformable within the neighboring sedimentary rocks. The SHRIMP results on basaltic andesite are divided into two groups. In one group the 207Pb/206Pb ages are from 2433 to 2558 Ma, which is consistent with the basement crustal age in Fuping and Wutai areas. In the other group, 13 grains yielded a weighted mean 207Pb/206Pb age of 2140±14 Ma. The latter is interpreted as the eruption age of the basaltic andesite, and gives the age of the base of the Hutuo Group. This result further suggests that the Hutuo Group formed in the middle Paleoproterozoic, not the early Palaeoproterozoic or late Archaean, as thought before, and is related to a 2.2-2.1 Ga rifting event in the Central North China Craton.

关键词：玄武安山岩五台山地区华北克拉通古元古代滹沱河 SHRIMP 同位素测年中国