Investigation on Color Pattern Diversity of Overwintering Harmonia axyridis in Southern Suburb of Jiamusi

Five sampling points for Harmonia axyridis （Pallas） were set in Sifeng Mountain scenic spot and four school districts of Jiamusi University, and diversity of color pattern of overwintering H. axyridis was surveyed from October to December in 2010. Survey results found that there were 16 color patterns of H. axyridis in southern suburb of Jiamusi, 11 species showed yellow background, while the other 5 species were black background, accounting for 68.75% and 31.25% of all the species, respectively. The majority of H. axyridis with yellow background had 18 or 19 spots. Compared with the sampling data in 2006 and 2008, the propor- tions of the color patterns had no significant difference in different years, but it slightly varied with the changes of environment.

Age, growth, reproductive biology, color pattern, and ontogenetic divergence of two closely related rock?shes (Sebastes koreanus and S. nudus) off the coasts of the Shandong Peninsula, China

The live-bearing genus Sebastes is renowned for its outstanding species richness and color diversity,and its speciation has been a point of interest.This study investigated the age,growth,reproductive biology,color pattern and ontogenetic divergence of a pair of closely related rockfishes from the coasts of the Shandong Peninsula,namely,Sebastes koreanus(n=879)and S.nudus(n=257).Marginal increment analysis of sectioned otoliths showed that annulus formation occurred once a year between June and July in both species.The sex-pooled growth curves of S.nudus and 3 populations of S.koreanus differed significantly from each other.No apparent latitudinal cline in growth parameters was found in S.koreanus.For both species,the peak parturition periods were from April to May,and the peak copulation periods were from November to December.S.nudus has a highly variable and conspicuous color pattern while S.koreanus has a stable and dull color pattem.This difference,together with the overlapping distribution and the close relationship,make S.koreanus and S.nudus an ideal model to investigate the color-driven speciation of the Sebastes.We confirmed that S.nudus changes its body color with age and season and fully expresses the carotenoid-based nuptial coloration when the fish reaches first maturity.Moreover,our comparisons of morphological traits that are likely related to survival and quality of these fishes suggested that S.nudus may suffer higher predation risk and foraging difficulty beginning at age 3.In light of the ontogenetic development of the color pattern in S.nudus,we suggested that the full expression of nuptial coloration most likely triggers the strong selective pressure to enhance swimming performance,anti-predator defense and foraging capacity of S.nudus through predator-prey interactions.By understanding all these details,we further inferred a hypothesis that both color pattem and bathymetric segregation play key roles in facilitating the speciation of demersal rockfishes.

Molecular test shows the color pattern is not so reliable in diagnostic of genus Dysphaea Selys(Odonata:Euphaeidae)

A molecular study based on COI, 16S and 28S genes reveals that a batch of specimens(7 males and 4 females) of Dysphaea Selys, 1853 collected from central Vietnam,which include different color patterns of wings and body, and were originally identified as three different species, are all the same species. This study implies that, in some group of Odonata,identification only depending on color pattern may be unreliable, no matter what huge variations there are.

The Spatial Color Mixing Model of Digital Camouflage Pattern

A spatial color-mixing model based on tricolor angular frequencies is proposed in consideration that the design theory falls behind the application of digital camouflage pattern.The model is based on Fourier transform and Gaussian low-pass filter(LPF).In the model,the tricolor angular frequencies are introduced to the spatial frequency response function of human color vision,and the effects of atmospheric attenuation and air screen brightness on color mixture are considered.The field test shows that the model can simulate the color-mixing process in the aspects of color-mixing order,and shape and position of color-mixing spot.But the color-mixing spot color is not perfect,which can be improved by optimizing the atmospheric parameters and tricolor cut-off angular frequencies.The model provides a tool for the research on digital camouflage pattern.

Direct-writing Structure Color Patterns on the Electrospun Colloidal Fibers toward Wearable Materials

This study presents a direct-writing structure color patterns on electrospun colloidal fibers by inkjet printing. The colloidal fiber was obtained by electrospinning the aqueous mixture of colloidal particles of poly(styrene-methyl methacrylate-acrylic acid) and poly(vinyl alcohol). The pattern was obtained by directly inkjet printing water onto the electrospun colloidal fiber. The pattern formation was attributed to the morphological transition of the colloidal fiber from the fiber aggregation to latex aggregation and the corresponding color change due to the dissolution of poly(vinyl alcohol) by water. Interestingly, a clear and clean image was successfully obtained on the ethanol-treated colloidal fibers film in comparison to a confused and blur image onto the freshly-made film. It is because the treatment process can compact the fiber structure and lower the spreading/wetting behavior of ink on the fiber structure, contributing to the formation of high-quality pattern. Various letters or quick response code were flexibly designed and printed on to colloidal fibers.Furthermore, the pattern can be easily transferred onto flexible substrate, i.e., a flexible printed bracelet. This work will be of great significance for the development of novel wearable functional materials/devices based on electrospun colloidal fibers.

Preparation and Optical Patterning of Organic-Inorganic Hybrid Color-Filter Films Using Latent Pigments by Utilizing Photo-Acid-Generator and Microwave Irradiation

Preparation and photo-patterning characteristics of organic-inorganic hybrid thin film containing latent pigment by using photo-acid-generator (PAG) and microwave irradiation have been investigated. The acrylic thin film modified with methoxysilane containing PAG was formed on a glass substrate and irradiated with ultraviolet rays to promote sol-gel reaction by catalytic action of acid which was generated from PAG. And then the film was hardened with microwave irradiation, yielding organic-inorganic hybrid polymer film having hardness, highly transparency and strong adhesion with a glass substrate. Since this reaction only occurred in the optically (UV) irradiated regions, by exploiting the difference between the adhesivenesses of these regions photo-irradiated through photomask with a glass substrate, it was possible to form a patterned film with pitch of 100 to 50 μm by a simple lift-off method. A pigment-containing film using latent pigments (with subtractive three primary colors of coloring materials) and a patterned film were prepared, and it was possible to make these films multi-colored by varying the mixing ratio of the pigments. This multi-colored film-preparation method is effective for simply and efficiently forming a color-filter film by applying optical and microwave irradiation.

醋酸靛胭脂混合三明治染色法联合智能分光比色技术结肠镜下Pit pattern分型对结直肠病变的诊断价值

目的 探讨醋酸靛胭脂混合(AIM)三明治染色法联合智能分光比色技术(FICE)结肠镜下Pit pattern分型对结直肠病变的诊断价值。方法 选择2022年6月-2023年10月该院收治的100例结直肠病变患者作为研究对象,共222处病灶;分别采用普通内镜、FICE和AIM三明治染色+FICE进行检查,并记录Pit pattern分型的检出情况、病理学类型;计算不同模式下Pit pattern分型诊断的敏感度、特异度、阳性预测值(PPV)、阴性预测值(NPV)和准确度,采用Kappa检验评估不同模式下Pit pattern分型诊断与病理学检查的一致性,采用受试者操作特征曲线(ROC curve)评估诊断效能。结果 与普通内镜(74.32%)相比,FICE(92.34%)和AIM三明治染色+FICE (97.30%) Pit pattern分型检出与病理结果符合率更高,且AIM三明治染色+FICE高于FICE,差异均有统计学意义(P <0.05);与普通内镜相比,FICE和AIM三明治染色+FICE诊断结直肠肿瘤性病变的准确度更高,且AIM三明治染色+FICE高于FICE,差异均有统计学意义(P <0.05);与普通内镜相比,FICE和AIM三明治染色+FICE诊断早期结直肠癌的准确度更高,差异均有统计学意义(P <0.05);普通内镜、FICE和AIM三明治染色+FICE预测结直肠肿瘤性病变的曲线下面积(AUC)分别为0.815 (95%CI:0.711~0.859)、0.881 (95%CI:0.752~0.904)和0.933 (95%CI:0.793~0.961);普通内镜、FICE和AIM三明治染色+FICE预测早期结直肠癌的AUC分别为0.850 (95%CI:0.720~0.866)、0.938(95%CI:0.764~0.951)和0.947 (95%CI:0.803~0.972);AIM三明治染色+FICE预测结直肠肿瘤性病变和早期结直肠癌的Youden指数最大,分别为0.955和0.968。结论 AIM三明治染色+FICE下Pit pattern分型诊断结直肠肿瘤性病变和早期结直肠癌的准确度较高,可有效提高内镜的诊治质量。

The Implementation Methods for Computer Aided Design and Analysis on Color-Woven Fabrics

Methods for computer aided design and analysis on color-woven fabrics are presented. The relation of color pattern, colored warp, colored weft and the model for regular weave texture are given based on their formative principle. Some efficient algorithms are developed to determine the color order of warp and weft threads which yields a given color pattern and regular weave texture. Finally, the design system structure and data process flowing are introduced.

The Yellow Spot Pattern of Salamander (Salamandra infraimmaculata) in Various Habitats at the Southern Border of Its Distribution in Israel

The present study describes the different color-pattern phenotypes of yellow spots on the black back of Salamandra infraimmaculata in various habitats at the southern border of its distribution in Israel. At Tel Dan, we photographed 454 salamanders in moist habitats where water flows year round;100 of these were sampled to measure the percentage of yellow and black color on the back, and the number of spots on the head. At Kibbutz Sasa, 201 salamanders were photographed, of which 62 were sampled for the measurements. In Kibbutz Yehiam, 200 salamanders were photographed, and 60 were sampled for the measurements. At all sites, about a third of the salamanders were photographed more than once. For all three populations, yellow spots on the salamander back were found in one row, two rows or scattered. For two indices (proportion of yellow/black and number of spots on the head), the Dan population (under wet, running water all year round conditions) differed from the two other populations of salamanders (under semi-arid mountain conditions). The number of yellow spots on the head of the salamanders in the three populations varied from 1 to 7. In all populations, 4 spots pattern was the most common. In the Dan population, there were significantly more salamanders with 1 to 3 spots on their head than in the Sasa or Yehiam populations. No difference was found in the number of head spots for Sasa vs. Yehiam salamanders. The percentage of yellow on the black back was significantly larger for the Dan salamanders vs. the two other populations. The main question examined was whether there is an effect of the habitat conditions in isolated populations on the spot pattern on the salamander back. The answer is positive and is supported by previous studies.

眼斑双锯鱼(Amphiprion ocellaris)发育中体色花纹时序发生的色素细胞变化和控制基因表达的分析Ⅱ.仔稚幼鱼时期

眼斑双锯鱼(Amphiprion ocellaris)属于鲈形目、雀鲷科、双锯鱼属,是热带珊瑚礁观赏鱼类的首选品种,其不同发育时期各种色素细胞的动态变化及其控制基因表达情况有待深入研究。记录了眼斑双锯鱼仔稚幼鱼体色花纹模式建成的发育过程,对比不同发育时期体色变化的特点,筛选出仔稚幼鱼时期体色花纹变化较为明显的9个发育时期,并利用荧光定量PCR检测了眼斑双锯鱼各发育时期的10个体色控制基因的表达情况。结果显示:眼斑双锯鱼的体色发生存在明显的时序性,仔鱼时期鱼体呈现半透明状,黑色素细胞排列在身体两侧,随着生长发育数量逐渐增多;稚鱼时期,体表开始出现红色素细胞和黄色素细胞,身体慢慢变得不透明,9 dph开始出现第一道条纹,虹彩色素细胞数量逐渐增多,10 dph时期观察到第二道条纹出现;幼鱼时期,三道白色条纹完全形成,体表的橙红色和白色条纹被黑色素细胞分隔开来,界线逐渐清晰,长成完整的花纹。结合荧光定量PCR结果分析发现:在仔稚幼鱼阶段,10个体色控制基因在各发育时期均有表达,不同功能分类的基因在不同发育时期的表达变化趋势差异较大,在仔稚幼鱼前期表达量变化较大的基因主要为TYR、Dct、Ednrb、Sox10等与黑色素细胞迁移、分化、合成相关的基因;随着幼鱼不断的生长发育,白色条纹逐条出现,与虹彩色素细胞相关的Fms、Foxd3等基因也开始出现表达量显著上升的趋势。

白酒外包装设计中中国传统元素的运用分析

探讨白酒外包装设计中传统元素的应用对白酒品牌价值和艺术价值的影响。通过文献分析和实地调研,了解相关传统文化元素在白酒外包装的实际应用。研究结果显示,白酒包装设计中的传统元素可以赋予产品独特的视觉冲击力和文化情感。色彩能够传达出浓郁的民族特色和品牌特色氛围;运用书法能够展示品牌的文化内涵和审美价值。同时,中国传统元素在白酒外包装设计中的应用将产生巨大影响。这不仅表现在设计创新方面,而且可以最大化品牌价值和市场竞争力。

Robust Palmprint Recognition Base on Touch-Less Color Palmprint Images Acquired

In order to make the environment of palmprint recognition more flexible and improve the accuracy of touchless palmprint recognition. This paper proposes a robust, touchless, palmprint recognition system which is based on color palmprint images. This system uses skin-color thresholding and hand valley detection algorithm for extracting palmprint. Then, the local binary pattern (LBP) is applied to the palmprint in order to extract the palmprint features. Finally, chi square statistic is used for classification. The experimental results present the equal error rate of 3.7668% and correct recognition rate of 97.0142%. Therefore the results show that this approach is robust and efficient in color palmprint images which are acquired in lighting changes and cluttered background for touch-less palmprint recognition system.

局部编织技术的编织原理与应用

为了对局部编织的创新设计提供理论与技术支持,基于SDS-ONE APEX3岛精服装设计系统以纬平针为地组织设计局部编织花样色码,主要从编织与休止针数变化的角度介绍局部编织技术的编织原理,提出不加不减局部编织、减针局部编织与加针局部编织的工艺设计方法,并在电脑横机上编织出织片小样,进一步阐述局部编织技术在二维平面的嵌花色块拼接、镂空肌理的孔眼效应、三维立体的凹凸造型以及结构轮廓成形编织方面的应用。通过对比分析花样色码与织片小样,指出局编加减针规则与先后顺序、吊目方式、色纱组合等因素对局编织片外观的影响,对局部编织技术在针织创意花型开发与成形编织方面的应用具有指导意义。

基于网版印刷的服装图案设计与色彩管理

随着互联网和电子商务的快速发展,消费者对服装图案设计和色彩管理的要求越来越高。然而,传统的印刷技术无法准确重现复杂的图案细节,导致图案模糊不清。此外,由于色彩管理的不足,印刷出的服装图案往往与设计师的原始想法有所偏差,导致色彩失真。基于此,本文主要探讨了基于网版印刷的服装图案设计与色彩管理,介绍了网版印刷的基本原理和工艺流程,归纳出了网版印刷在服装图案设计中起到的重要作用。

传统国画元素对当代手工皮具产品的设计提升研究

以传统国画为例,对传统国画中的图案、色彩、故事等元素在当代手工皮具设计中的应用进行分析,通过案例分析对传统国画元素提升当代手工皮具文化内涵的方法、路径等进行总结,认为传统国画元素与皮具设计的融合能够在充分提升手工皮具文化内涵的同时带动手工皮具实现个性化设计,从而提升手工皮具的市场竞争力。

The Objective Measure of Color Vision in Primary Open Angle Glaucoma

Purpose: To objectively evaluate the clinical application of color pattern reversal visual e-voked potential (CPR-VEP) on primary open angle glaucoma (POAG). Methods: CPR-VEP and FM 100-hue test were performed in 31 eyes with POAG and 33 normal eyes. Color pattern stimulation was presented by color monitor controlled by computer program. The reversal rate of the stimulating pattern was 2 Hz and the spatial frequency of the stimulating was 0.53 cycle/degree. The color stimulating pattern include White /Black , Red/Black , Green/Black , Blue/Black , Yellow /Black , Red/Green and Blue /Yellow . Results : CPR-VEP P1 latencies were obviously prolonged in POAG group in comparison with normal control group in equiluminance. All CPR-VEP P1 amplitudes, except Blue/Black P1 amplitude, show no differences between POAG group and normal control group . Conclusion: P1 latencies of all CPR-VEP and P1 amplitude of Blue/Black CPR-VEP were parameters for identifing acquired dyschromatopsia caused by POAG. The results

清代服饰云纹探析

针对清代服饰云纹的形态和设计方法,采用文献考据法、实证研究法和比较研究法,梳理清代服饰云纹的形态演变脉络,归纳清代服饰云纹的造型特征、色彩特征和装饰功能。研究表明:清代服饰云纹在承袭明代样式的基础上发展演变,受清代舆服制度等的影响而形成时代风格。清代服饰云纹按造型可归纳为沉稳敦厚型、纤秀流畅型、短圆规则型3大类,这3类云纹有着明显的演变渐进关系;清代服饰云纹按色彩可归纳为五彩云纹、青云纹、金云纹3大类,这3种调式的云纹各自有着较为固定的配色程式;清代服饰云纹在整幅纹样中或充当主纹,或充当辅纹,起着点题、完善情景、丰富寓意等作用。

淮剧艺术特征解析及设计因子应用探寻

在非遗活态化传承的时代背景下,非遗文创产品的开发对于非遗文化的传承与保护有着重要意义。而作为国家级非物质文化遗产的淮剧,是集文学、音乐、美术、舞蹈、杂技于一体的综合艺术,极具美学与文化价值。通过梳理淮剧艺术视觉元素的构成,从形态、图案、色彩三方面提取其中具代表性、典型性的文化符号,结合现代创意设计方法,探究淮剧元素融入现代生活的新载体,更好地延续其文化基因,助力淮剧文化的活态化传承。

白地黑花瓷黑彩的仿制及呈色研究

白地黑花瓷是先民创造性以低品位原料生产的一类绘画装饰瓷,在我国北方地区广为烧造,今天仍然有广泛的市场。其中的黑彩,多选自当地的贫铁矿烧成,但外观受多种因素影响。采用考古实验法,通过古瓷样品的测试分析,确定黑彩的组成与施彩工艺。后选用耀州窑陈炉当地制瓷原料,在电窑中以中性气氛烧成,仿烧了耀州窑白地黑花瓷黑彩;采用X射线荧光光谱仪(XRF)、色度仪、超景深显微镜、X射线衍射仪(XRD)、显微共聚焦激光拉曼光谱仪(Raman)等测试分析探讨了烧成温度、彩料的Fe_(2)O_(3)含量、施釉厚度等黑彩呈色的影响。对比发现,仿烧样品基本达到明代白地黑花瓷黑彩的效果。研究结果有助于深入探讨耀州窑白地黑花瓷的地方特色的形成因素,为进一步认知古代白地黑花瓷的科学内涵及地域特色建立理论与实验基础。

美术元素对服装色彩与图案的影响

随着艺术与时尚的不断融合,美术中的色彩理论、图案风格、构图技巧等元素也开始被广泛应用于服装设计中,形成了一种跨界融合的新趋势。这种融合推动了服装设计的创新和发展,为服装提供了更为丰富和多元的表达形式。随着全球化和文化多元化的发展,不同的美术元素被设计师巧妙地融入服装设计之中,展现了文化的多样性,促进了文化间的交流与融合。