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Apparel Brand Overlap Based on Customer Perceived Value and Eye-Tracking Technology

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Tsinghua Science and Technology 2018年第1期23卷 47-64页

作者： Lei Jiang kang zhang School of Computer Software Tianjin University Tianjin 300350 China Institute of Art and Fashion Tianjin Polytechnic University Tianjin 300387 China

Competition in the apparel market has developed from preliminary price competition, quality competition, and scale competition to the current state of brand competition. The phenomenon of brand overlap cannot be avoided by apparel enterprises during the process of building and manufacturing their brands. This paper has selected nine identification elements of three dimensions, which we used to construct an apparel brand overlap identification model. This model is based on the theories of customer perceived value and brand identity and was constructed by taking consumer perspectives as the starting point. Two apparel brands from the representative international E Company have been selected as our empirical research objects. An apparel brand overlap identification model has been constructed based on questionnaire analysis and a cognitive experiment involving eye-tracking technology. In addition, the overlap elements among apparel brands, as well as the cognitive situation of consumers with regard to brand overlap, have been analyzed.

关键词： eye-tracking technology customer perceived value brand overlap brand identity apparel brand

Polarization-space joint mainlobe jamming countermeasure technique based on divided dimensions

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Journal of Systems Engineering and Electronics 2022年第3期33卷 594-599页

作者： SHA Minghui MAO Erke zhang kang School of Information and Electronics Beijing Institute of TechnologyBeijing 100081China Beijing Institute of Radio Measurement Beijing 100854China

In order to solve the problem that the traditional space jamming countermeasure cannot deal with the mainlobe self-protecting jammings,a polarization-space joint mainlobe jamming countermeasure technique based on divided dimensions is ***,the digital beam of each row and column is firstly formed by using dual polarization digital receiving in ***,the polarization-space joint cancellation in both azimuth and elevation dimensions is carried out based on the polarization-space joint difference between the target echo and the jamming,as well as the divided dimension feature of the row and column ***,the sum and difference beams of the full array in the elevation or azimuth dimension are formed by the beams after jamming cancelling,and the monopulse angle measurement is further employed to obtain target *** effectiveness of the proposed technique is verified by simulations,indicating that the self-protecting jamming and multiple mainlobe following jammings can be both cancelled simultaneously with the angle measurement unchanged.

关键词： mainlobe jamming countermeasure self-protecting jamming following jamming polarization-space joint cancelling dimension-divided angle measurement

Correlation of brain-derived neurotrophic factor to cognitive impairment following traumatic brain injury in rats

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Neural Regeneration Research 2008年第11期3卷 1161-1167页

作者： Dezhi kang zhang Guo Department of Neurosurgery First Affiliated Hospital Fujian Medical University Fuzhou 350005 Fujian Province China

BACKGROUND： In vitro and in vivo studies have confirmed that brain-derived neurotrophic factor （BDNF） can promote survival and differentiation of cholinergic, dopaminergic and motor neurons, and axonal regeneration. BDNF has neuroprotective effects on the nervous system. OBJECTIVE： To explore changes in BDNF expression and cognitive function in rats after brain injury. DESIGN, TIME AND SETTING： The neuropathology experiment was performed at the Second Research Room, Department of Neurosurgery, Fujian Medical University （China） from July 2007 to July 2008. MATERIALS： A total of 72 healthy, male, Sprague Dawley, rats were selected for this study. METHODS： Rat models of mild and moderate traumatic brain injury were created by percussion, according to Feeney＇s method （n = 24, each group）. A bone window was made in rats from the sham operation group （n = 24）, but no attack was conducted. MAIN OUTCOME MEASURES： At days 1, 2, 4 and 7 following injury, BDNF expression in the rat frontal lobe cortex, hippocampus and basal forebrain was examined by immunohistochemistry （streptavidin-biotin-peroxidase complex method）. Changes in rat cognitive function were assessed by the walking test, balance-beam test and memory function detection. RESULTS： Cognitive impairment was aggravated at day 2, and recovered to normal at days 3 and 7 in rats from the mild and moderate traumatic brain injury groups. BDNF expression in the rat frontal lobe cortex, hippocampus and basal forebrain was increased at 1 day, decreased at day 2, and then gradually increased in the mild and moderate traumatic brain injury groups. BDNF expression was greater in rats from the moderate traumatic brain injury group than in the sham operation and mild traumatic brain injury groups （P 〈 0.05）. CONCLUSION： BDNF expression in the rat frontal lobe cortex, hippocampus and basal forebrain is correlated to cognitive impairment after traumatic brain injury. BDNF has a protective effect on cognitive function in rats followi

关键词： brain-derived neurotrophic factor cognitive impairment traumatic brain injury

Synthesis, Crystal Structure and Antimicrobial Property of 4-Bromo-2-[(3-methypyridin-2-ylimino)methyl]phenol

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Chinese Journal of Structural Chemistry 2008年第2期27卷 230-232页

作者： zhang Li LI kang-Lan Institute of Green Chemistry Experiment and Teaching Lanzhou City University Lanzhou 730070 China

The title Schiff base compound 4-bromo-2-[（3-methylpyridin-2-ylimino）methyl]phenol was prepared and structurally characterized by elemental analysis, IR spectrum, and single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P2 1/n, with a = 4.4870（9）, b = 19.953（4）, c = 13.860（3）A, β = 93.13（3）°, V = 1239.0（4）A3 Z = 4, Dc = 1.561 g/cm3, C13H11BrN2O2 , Mr = 291.15, p = 3.302 mm-1 and F（000） = 584. The final refinement gave R = 0.0608 and wR = 0.1377 for 1329 observed reflections with I 〉 2σ（I）. X-ray diffraction reveals that the non-hydrogen atoms in the compound are nearly coplanar, with the mean deviation of 0.0197A from the plane. The molecule adopts an E configuration about the central C=N functional bond. The compound possesses moderate antimicrobial property.

关键词： Schiff base synthesis crystal structure antimicrobial

Prescribed time control based on the periodic delayed sliding mode surface without singularities

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Science China(Information Sciences) 2024年第7期67卷 256-270页

作者： Bin ZHOU Yi DING kang-kang zhang Guang-Ren DUAN Center for Control Theory and Guidance Technology Harbin Institute of Technology

In this paper, nonsingular prescribed-time control is studied based on periodic delayed sliding mode surfaces. Different from the existing sliding mode control, where either singularity problems may appear or the convergence time depends on the initial state, the proposed sliding mode control approaches can achieve prescribed-time convergence without singularity. The proposed nonsingular sliding mode control approaches can be applied to both second-order and high-order nonlinear systems with prescribed-time convergence. As applications of the proposed sliding mode control approaches, the control of hypersonic vehicle systems is revisited. Numerical simulations on the nonlinear model of the hypersonic vehicle system show the effectiveness of the proposed methods.

关键词： prescribed-time control smooth periodic delayed feedback sliding mode control high-order nonlinear systems hypersonic vehicle systems

Artistic Augmentation of Photographs with Droplets

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Journal of Computer Science & Technology 2019年第6期34卷 1294-1306页

作者： Mo-Han zhang Jin-Hui Yu kang zhang Jun-Song zhang State Key Laboratory of CAD&CG Zhejiang UniversityHangzhou 310027China Department of Computer Science Harbin Finance UniversityHarbin 150030China Department of Computer Science The University of Texas at DallasRichardsonTX 75080-3021U.S.A. Faculty of Information Technology Macao University of Science and TechnologyMacao 999078China National Engineering Research Center for E-Learning Central China Normal UniversityWuhan 430079China

Artistic augmentation of photographs with water droplets aims at generating aesthetic yet realistic images, and thus differs from traditional augmented reality in two aspects. One difference lies in the adoption of a new image as the environment map in order to render reflected or refracted effects on the surface of inserted water droplets. The other difference is in modeling of water droplets including hanging droplets and resting droplets. These differences raise two research challenges:(1) how to adjust the brightness and colors of the new environment map to maintain visual consistency between the new environment map and the original input image;(2) how to model hanging and resting droplets aesthetically. This paper proposes a framework that addresses these two challenges and demonstrates the effectiveness of our framework by generating example augmented images.

关键词： artistic augmentation augmented reality illumination estimation droplet modeling image-based modeling

Petroleum Exploration of Craton Basins in China

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Acta Geologica Sinica(English Edition) 2006年第1期80卷 117-126页

作者： zhang kang WANG Junling ~EC Beijing 100083

Craton basins are a significant petroliferous provenance. Having undergone multiple open- dose tectonic cycles and strong reworking of the late Cenozoic tectonic movement, the craton basins in China are highly broken. This has resulted in multi-source and multiphase hydrocarbon generation and later hydrocarbon accumulation so that a complicated spatial assemblage of primary, paraprimary and secondary oil-gas pools has been formed. The primary factors controlling hydrocarbon accumulation include hydrocarbon-generating depressions, paleouplifts, paleoslopes, unconformity surfaces, paleo-karst, faults and fissure systems as well as the later conservation conditions. In consequence, the strategy of exploration for China＇s craton basins is to identify the effective source rocks, pay attention to the different effects of paleohighs and late reworking, enhance studies of the secondary storage space, attach importance to the exploration of lithologic oil-gas reservoirs and natural gas pools, and approach consciously from the secondary oil pools to the targets near the source rocks. At the same time, a complete system of technologies and techniques must be built up.

关键词： craton basin oil and gas exploration multiphase hydrocarbon generation multiphase accumulation reworking of oil-gas pools marine oil and gas

Genetic divergence among geographical populations of the migratory locust in China

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Science China(Life Sciences) 2005年第6期48卷 551-564页

作者： zhang Minzhao kang Le State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing 100080 China State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing 100080 China

The random amplified polymorphic DNA (RAPD) technique was used to examine genetic divergence and interrelations of 11 geographical populations of the migratory locust in China, and the role of spatial separation in the population differentiations. AMOVA analysis of genetic variations in all the populations indicated greater within- (79.55%) than among-population variability (20.45%), and that there were significant differentiations among the populations; 11 populations were divided into four regional groups, with significantly greater variability within (82.99%) than among the groups (17.01%), and there existed apparent regional differentiations. Paired comparisons showed significantly greater variability within- than between-groups, indi-cating significant differentiations between populations of different regional groups. Of all the pairwise comparisons, Hainan and Tibetan groups displayed the greatest differentiation, with the difference between the two groups being seven folds of that between populations within the groups; the least differentiations were exhibited between the groups of Hainan, Xinjiang, and Inner Mongolia, with the differences between groups being only half of the differences between populations within the groups. Mantel tests of the genetic and spatial distances showed that the two matrices were significantly correlated (p<0.01), indicating that the geographical isolation played an important role in the differentiations of the geographical populations of the migratory locusts. Cluster analysis divided all populations into four major groups: Xinjiang and Inner Mon-golia group, the Great Plains of North China (the Yellow River and Huai River Plains) group, Hainan group, and Tibet group. Principal component analysis (PCA) supported the division of populations based on the cluster analysis. However, analysis of individuals clustered the locusts into five populations: Xinjiang and Inner Mongolia, Hami in Xinjiang, the Great Plains of North China, Hai

关键词： Locusta migratoria L., geographical populations, RAPD, genetic differentiation.

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参姜止痢合剂的抗炎镇痛功效评价

中国兽医杂志 2025年第1期61卷 128-132页

作者：刘莲郭志廷张康张景艳王磊李建喜中国农业科学院兰州畜牧与兽药研究所农业农村部兽用药物创制重点实验室甘肃省中兽药工程技术研究中心甘肃兰州730050

为探究中兽药参姜止痢合剂的抗炎、镇痛作用,本试验采用二甲苯致小鼠耳廓肿胀抑制试验建立炎症模型,采用醋酸扭体试验和热板法镇痛试验建立疼痛模型,各试验造模前将昆明小鼠随机分为5个组,分别为阴性对照组(灌胃生理盐水)、阳性药物对照... 详细信息

为探究中兽药参姜止痢合剂的抗炎、镇痛作用,本试验采用二甲苯致小鼠耳廓肿胀抑制试验建立炎症模型,采用醋酸扭体试验和热板法镇痛试验建立疼痛模型,各试验造模前将昆明小鼠随机分为5个组,分别为阴性对照组(灌胃生理盐水)、阳性药物对照组[醋酸地塞米松片(抗炎),阿司匹林肠溶片(镇痛)]、参姜止痢合剂高剂量组(1 g/mL,0.4 mL)、参姜止痢合剂中剂量组(1 g/mL,0.2 mL)和参姜止痢合剂低剂量组(1 g/mL,0.1 mL),每组12只。连续预处理6 d后造模,观察并计算小鼠耳肿胀度和耳肿胀抑制率,记录小鼠扭体潜伏期,计算疼痛抑制率,测定不同检测时间点的痛阈值,以评价参姜止痢合剂的抗炎、镇痛作用。结果显示,与阴性对照组相比,中、高剂量参姜止痢合剂和阳性药物预处理6 d可极显著抑制二甲苯致小鼠耳肿胀度(P<0.01),且中剂量组耳肿胀抑制率最高,达到72%;参姜止痢合剂中、高剂量组和阳性药物对照组小鼠腹腔注射醋酸后扭体潜伏期均延长,且15 min内出现的扭体次数显著降低(P<0.05或P<0.01);中、高剂量参姜止痢合剂和阳性药物在末次预处理后1.5 h均能显著增加小鼠的痛阈值(P<0.05或P<0.01)。结果表明,参姜止痢合剂具有良好的抗炎、镇痛作用,为参姜止痢合剂的临床应用提供了参考依据。

关键词：中兽药参姜止痢合剂抗炎镇痛