hairiness

毛羽
  • 文章类型: Journal Article
    纱线染色工厂排放的液体废物载有各种有害物质,包括微塑料纤维(MPF),存在于水生生态系统中。染色期间,在这项研究中确定了MPF脱落因素。在六个聚酯纱线染色工厂确定脱落因子,以评估(1)深色和(2)浅色阴影的MPF释放。三种染色过程被认为包括正常,载体和高温。利用木屑基活性炭对染料废水进行脱色。在没有浮选过程的情况下进行絮凝和澄清以获得低密度MPF。在光学显微镜下进行热针测试以进行视觉识别,并通过过滤进行定量。纱线的重量和支数。最大0.00399%重量损失(重量。)在高温染色过程中发现深色阴影,在载体染色中发现0.00392%(浅色)以染色较粗的纱线。相比之下,正常染色时脱落的0.4562mgL-1纤维颗粒(≤0.225mm),对于一个浅色的阴影,观察到细纱的最小值为0.00138%wt。找到了。较短的纤维长度,较高的旦尼尔,在高温染色的深色阴影下,和粗纱与最大的MPF放电有关。纺织工业通常的污水处理厂(ETP)只能去除75.52%的MPF废水。染色过程中MPF的脱落明显高于服装的家用洗涤周期。含有MPF的纺织品废水将作为MP排放的常规和广泛的初始来源出现,这可能会破坏生态系统。
    The yarn dyeing factories discharge liquid waste laden with a variety of hazardous substances, including microplastic fibre (MPFs), which are found in aquatic ecosystems. During dyeing, MPF shedding factors were determined in this study. Shedding factors were determined at six polyester yarn dyeing factories to assess MPF release for (1) dark and (2) light shading. Three dyeing processes were considered including normal, carrier and high temperature. Sawdust-based activated carbon was utilized to decolourize dye wastewater. Flocculation and clarification were done without a flotation process to obtain low-density MPF. A hot needle test was applied to visual identification under an optical microscope and quantification was done by filtering, weighting and count of the yarn. A maximum of 0.00399 % weight loss (wt.) was found for dark shade in the high-temperature dyeing process and 0.00392 % (light) was found in carrier dyeing to dye a coarser yarn. In contrast, 0.4562 mg L-1 fibre particles (≤ 0.225 mm) shedding in normal dyeing, for a light shade, was observed to a fine yarn where a minimum of 0.00138 % wt. was found. Shorter fibre length, higher denier, and courser yarn were associated with the greatest MPF discharge at high-temperature dyeing for a dark shade. The usual effluent treatment plant (ETP) of the textile industry can remove only 75.52 % MPFs of wastewater. Shedding of MPF during dyeing is remarkably higher than the domestic wash cycle of garments. Wastewater of textiles containing MPFs would appear as a regular and extensive initial source of MP emissions, which can damage the ecological system.
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  • 文章类型: Journal Article
    进行这项研究是为了确定特定纱线支数的最佳环尺寸。在带有三个不同大小的独立环的环形框架中,产生20s/1kW纱线。纺纱方法使用相同的环速,twist,戒指旅行者,和垫片,但三个直径为38毫米的不同环(环A),40mm(环-B),和42毫米(环C)。然后,在相同的测试条件下,用Uster均匀度测试仪(UT-6)检查每种纱线的10个样品,并进行比较以确定最佳的一种。“环-C”产量比“环-B”和“环-A”产量高0.22%和1.34%,分别。“环-C”的纱线断裂比“环-B”和“环-A”的纱线断裂大47.78%和200%,\"分别。“环-C”的纱线不均匀性比“环-B”和“环-A”高4.15%和4.14%,“环-B”生产的纱线缺陷比“环-C”和“环-A”低18.54%和3.47%,“环-B”生产的纱线韧度比“环-C”和“环-A”高3.35%和0.64%。“环-C”纱线毛羽比“环-B”和“环-A”纱线毛羽高10.63%和12.31%,分别。根据测试报告的研究,从“环B”产生的纱线在质量和产量方面都提供了优化的结果。环“环-B”的生产损失比环“A”低,但比环“C”高。“另外,由“环-B”制成的纱线的毛羽与由“环-A”制成的纱线非常相似。
    This study was carried out to determine the best ring size for a certain yarn count. In a ring frame with three separate rings of varying sizes, 20s/1 kW yarn was created. The spinning method used the same ring speed, twist, ring traveller, and spacer but three distinct rings with diameters of 38 mm (Ring- A), 40 mm (Ring- B), and 42 mm (Ring- C). Then, under the same testing conditions, ten samples of each yarn were examined by Uster Evenness Tester (UT-6) and compared to determine the best one. The \"Ring- C″ production yield was 0.22% and 1.34% greater than the \"Ring- B″ and \"Ring- A″ yields, respectively. Yarn breakage for \"Ring- C″ was 47.78% and 200% greater than for \"Ring- B″ and \"Ring- A,\" respectively. Yarn unevenness for \"Ring- C″ was found to be 4.15% and 4.14% higher than \"Ring- B″ and \"Ring- A,\" imperfection of yarn produced by \"Ring- B″ was 18.54% and 3.47% lower than \"Ring- C″ and \"Ring- A,\" and tenacity of yarn produced by \"Ring- B″ was 3.35% and 0.64% higher than \"Ring- C″ and \"Ring- A.\" \"Ring- C″ yarn hairiness was 10.63% and 12.31% higher than \"Ring- B″ and \"Ring- A″ yarn hairiness, respectively. According to the study of the tested report, yarn generated from \"Ring- B″ delivered optimized results in terms of both quality and output. Ring \"Ring- B″ had a lower production loss than Ring \"A\" but a higher loss than Ring \"C.\" Also, the hairiness of yarn made from \"Ring- B″ was remarkably similar to yarn made from \"Ring- A.\"
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  • 文章类型: Journal Article
    授粉是自然界中至关重要的功能,并成为一种生态系统服务,因为它影响人们的食物和营养安全。然而,昆虫的不同功能性状对植物花粉运输的贡献尚不清楚。我们探索了八种作物的授粉昆虫功能性状与甜granadilia(PassifloraligularisJuss)花粉运输之间的关系。我们对这种作物的访花昆虫进行了采样,并记录了10个功能性状(5个通过直接测量,5个来自文献),这些性状与每种昆虫携带的花粉量有关。蜜蜂(Apidae)不仅是最丰富的昆虫,而且是花粉含量最高的昆虫。在这些之内,最丰富的物种是外来的普通蜜蜂(Apismellifera(Linnaeus)),几乎占收集到的标本的一半;但是,这种蜜蜂携带的花粉粒比其他本地蜜蜂少。Bombushortulanus(史密斯)是大型本地蜜蜂之一,携带更多的甜瓜花粉,尽管不是社区中丰富的物种。体型是决定甜瓜花粉运输的最重要性状,而与体毛相关的性状对人体花粉负荷不显著。所评估的功能性状均不受物种水平分类学的影响。我们的结果表明,蜜蜂的大体型是格拉纳迪拉花粉运输中最重要的特征,不考虑作物中授粉昆虫组合的组成和结构的其他变化。
    Pollination is a vitally important function in nature and becomes an ecosystem service because it influences the food and nutritional security for people. However, the contribution of different functional traits of insects for pollen transport of plants is still poorly known. We explore the relationship between pollinator insect functional traits and the transport of pollen of sweet granadilla (Passiflora ligularis Juss) in eight crops. We sampled flower-visiting insects of this crop and recorded 10 functional traits (five by direct measurements and five from the literature) that were related to the amount of pollen carried by each insect. Bees (Apidae) were not only the most abundant insects but also the ones that loaded the highest amounts of pollen. Within these, the most abundant species was the exotic common honeybee (Apis mellifera (Linnaeus)) making up almost half of the specimens collected; however, this bee carried less pollen grains than other native bees. Bombus hortulanus (Smith) was one of the large-bodied native bees that carried more sweet granadilla pollen, despite not being an abundant species in the community. Body size was the most important trait determining the transport of sweet granadilla pollen, while the traits related to body hairs were not significant for the body\'s pollen load. None of the functional traits evaluated was influenced by taxonomy at species-level. Our results suggest that large body sizes in bees are the most important traits in granadilla pollen transport, regardless of other changes in composition and structure of pollinating insect assemblages in the crop.
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  • 文章类型: Journal Article
    服装行业产生了大量的废物。本研究旨在开发从服装废料中生产再生纱线的工艺。服装剩余的织物被转化为纤维,并将纤维与原棉以不同比例混合,以生产可持续的6/1Ne转杯纱。生产的纱线质量即。计数强度产品(CSP),伸长率,总质量指数(TQI)和韧性线性下降,在厚和薄的地方观察到相反的情况,棉结,随着原棉添加废物量的增加,缺陷指数(IPI)和毛羽(H)属性。剩余织物(LOF)可用于开发可持续的纱线和零废物管理。
    A huge amount of waste was generated from the apparel industries. This study aims to develop the process of producing recycled yarn from apparel waste. The apparel leftover fabric was converted to fiber, and the fiber was mixed with virgin cotton in different ratios to produce sustainable 6/1 Ne rotor yarn. The produced yarn qualities viz. count strength product (CSP), elongation percentage, total quality index (TQI) and tenacity were decreased linearly, and opposite scenario observed for thick and thin places, neps, imperfection index (IPI) and hairiness (H) attributes with increasing the amount of waste addition with virgin cotton. The leftover fabric (LOF) can be utilized to develop a sustainable yarn and to zero waste management.
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  • 文章类型: Journal Article
    了解生物沿气候梯度的形态变化的原因一直是生态学研究中的主要挑战。我们研究了与热性能(即体型,相对附件长度和毛羽),在社区和种间层面,沿着Mexical型灌木丛中的海拔梯度。在社区一级,我们发现体型模式的CWM随着海拔的增加而降低,这与物种能量理论一致(与Bergmann规则相反)。我们还发现相对胫骨长度的CWM增加,这违反了艾伦的规则。此外,我们发现相对头发长度的CWM向高海拔水平增加,这与毛羽在隔热中起重要作用的假设是一致的。我们发现,相对于高海拔而言,低海拔地区的身体大小和头发长度的功能多样性更大,这可能意味着高地社区比低地社区对环境变化更敏感。总的来说,在种内水平,大多数物种在海拔梯度上没有任何特征的模式。未来的研究应该为其背后可能的行为或生理机制提供进一步的证据。
    Understanding the causes of morphological variation of organisms along climatic gradients has been a central challenge in ecological research. We studied the variation of community weighted mean (CWM) and two functional diversity metrics (Rao-Q and functional richness) computed for five morphological traits of wild bees (Hymenoptera: Apoidea) related to thermal performance (namely body size, relative appendage length and hairiness), at community and interspecific levels, along an elevation gradient in a Mexical-type scrubland. At the community level we found a decreasing CWM of body size pattern with increasing elevation which is consistent with the species-energy theory (and contrary to Bergmann\'s rule). We also found an increase in the CWM of relative tibia length, which is contrary to Allen\'s rule. Additionally, we found an increase in the CWM of relative hair length towards high levels of elevation, which would be consistent with the hypothesis that hairiness plays an important role as thermal insulation. We found that functional diversity was larger at low elevations with respect to high elevation for body size and hair length, which could imply that highland communities were more sensitive towards environmental changes than lowland communities. Overall, at intraspecific level, most of species showed no pattern for any of the traits along the elevation gradient. Future research should provide further evidence on the possible behavioral or physiological mechanisms behind it.
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  • 文章类型: Journal Article
    纺织纱线是织物行业的基本组成部分。纱线纺织品和纤维直径的测量在纺织工程中至关重要,因为直径的大小和分布会影响纱线的性能,和图像处理可以提供用于更快、更准确地确定直径的自动技术。在本文中,基于可应用于显微数字图像的图像处理算法,测量纱线直径及其单个纤维直径的简便和新方法。与使用ImageJ软件进行手动测量相比,使用图像预处理(例如对纱线图像进行二值化和形态学操作)自动准确地测量直径。除了图像预处理,圆形霍夫变换用于测量纱线横截面中单个纤维的直径并计算纤维的数量。算法是在MATLAB中构建和部署的(R2020b,MathWorks,Inc.,纳蒂克,马萨诸塞州,美国)环境。提出的方法显示了一种可靠的,快,与其他不同的图像测量软件相比,测量准确,比如ImageJ。
    Textile yarns are the fundamental building blocks in the fabric industry. The measurement of the diameter of the yarn textile and fibers is crucial in textile engineering as the diameter size and distribution can affect the yarn\'s properties, and image processing can provide automatic techniques for faster and more accurate determination of the diameters. In this paper, facile and new methods to measure the yarn\'s diameter and its individual fibers diameter based on image processing algorithms that can be applied to microscopic digital images. Image preprocessing such as binarization and morphological operations on the yarn image were used to measure the diameter automatically and accurately compared to the manual measuring using ImageJ software. In addition to the image preprocessing, the circular Hough transform was used to measure the diameter of the individual fibers in a yarn\'s cross-section and count the number of fibers. The algorithms were built and deployed in a MATLAB (R2020b, The MathWorks, Inc., Natick, Massachusetts, United States) environment. The proposed methods showed a reliable, fast, and accurate measurement compared to other different image measuring softwares, such as ImageJ.
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  • 文章类型: Journal Article
    蜜蜂在授粉中起着非常重要的作用,尤其是西方的蜜蜂,为作物授粉贡献了数十亿美元。毛羽通过运输花粉在授粉成功中起着重要作用,和花粉的摄入,但是缺乏对形态学机制的详细研究。由于缺乏用于测量毛羽的系统技术,因此在传粉者性状分析中几乎没有讨论毛羽性状。本文报告了一种新颖的方法,该方法用于通过配备有实时测量模块软件的立体显微镜测量西方蜜蜂不同身体部位的毛发长度。扫描电子显微镜(SEM)用于更新有关西方蜜蜂头发结构的知识。我们解释了不同类型的头发,头发树枝,以及它们在身体不同部位的分布,详细讨论。发现头发长度与身体所有部位的分支数之间呈正相关。观察到五种类型的分支,这些分支因身体部位的不同而不同。我们的研究提供了有关西方蜜蜂头发形态的足够详细信息,以及一种测量头发长度的新方法。这种方法将提高有关了解西方蜜蜂授粉效率的知识。
    Bees play a very important role in pollination, especially western honey bees, which contribute upwards of billions of dollars concerning crop pollination. Hairiness plays an important role in pollination success by transporting pollen, and pollen intake, but there is a lack of detailed studies on the morphological mechanisms. The hairiness trait is barely discussed in pollinator trait analysis because of the lack of systematic techniques used to measure hairiness. This paper reports a novel method that is used to measure the hair length of different body parts of a western honey bee through a stereomicroscope equipped with live measurement module software. Scanning electron microscope (SEM) was used to update the knowledge regarding the hair structure of a western honey bee. We explained different types of hairs, hair branches, and their distributions on different body parts, which are discussed in detail. A positive correlation was found between hair length and the number of branches on all body parts. Five types of branches were observed, and these branches vary with different body parts. Our study provides sufficient details about the hair morphology of the western honey bee and a new methodology for measuring hair length. This methodology will improve the knowledge about understanding the pollination efficiency of the western honey bee.
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  • 文章类型: Journal Article
    背景:叶片毛羽(柔毛)是调节叶片蒸腾作用的重要植物表型,影响阳光穿透,并提供对某些昆虫的抗性或易感性增加。棉花占全球天然纤维产量的80%,在这种作物中,叶片毛羽也会影响纤维的产量和价值。目前,这个关键的表型是视觉测量的,这是缓慢的,费力和运营商偏见。这里,我们提出了一个简单的,结合深度学习模型的高通量和低成本成像方法,HairNet,以非常准确的方式对叶子图像进行分类。
    结果:生成了来自27个基因型棉花的13,600个叶片图像的[公式:参见正文]数据集。从树冠中两个不同位置的叶子(叶子3和叶子4)收集图像,来自连续两年和两种生长环境(温室和田地)中生长的基因型。该数据集用于构建一个名为HairNet的四部分深度学习模型。在整个数据集上,HairNet的精度为每张图像89%,每片叶子95%。叶子选择的影响,然后使用整个数据集的子集研究了HairNet上的年份和环境准确性。结果发现,只要培训人群中存在测试年份和环境的示例,HairNet实现了每个图像(86-96%)和每个叶子(90-99%)的非常高的准确性。叶片选择对HairNet准确性没有影响,使其成为一个稳健的模型。
    结论:HairNet根据棉花叶片的毛羽以非常高的准确性对其图像进行分类。这项研究中提出的简单成像方法以及HairNet在每片叶子上获得的单个图像上的高精度表明,它是可大规模实施的。我们建议HairNet替换此特征的当前视觉评分。HairNet代码和数据集可以用作基线,以测量其他物种的这种性状或对其他微观但重要的表型进行评分。
    BACKGROUND: Leaf hairiness (pubescence) is an important plant phenotype which regulates leaf transpiration, affects sunlight penetration, and provides increased resistance or susceptibility against certain insects. Cotton accounts for 80% of global natural fibre production, and in this crop leaf hairiness also affects fibre yield and value. Currently, this key phenotype is measured visually which is slow, laborious and operator-biased. Here, we propose a simple, high-throughput and low-cost imaging method combined with a deep-learning model, HairNet, to classify leaf images with great accuracy.
    RESULTS: A dataset of [Formula: see text] 13,600 leaf images from 27 genotypes of Cotton was generated. Images were collected from leaves at two different positions in the canopy (leaf 3 & leaf 4), from genotypes grown in two consecutive years and in two growth environments (glasshouse & field). This dataset was used to build a 4-part deep learning model called HairNet. On the whole dataset, HairNet achieved accuracies of 89% per image and 95% per leaf. The impact of leaf selection, year and environment on HairNet accuracy was then investigated using subsets of the whole dataset. It was found that as long as examples of the year and environment tested were present in the training population, HairNet achieved very high accuracy per image (86-96%) and per leaf (90-99%). Leaf selection had no effect on HairNet accuracy, making it a robust model.
    CONCLUSIONS: HairNet classifies images of cotton leaves according to their hairiness with very high accuracy. The simple imaging methodology presented in this study and the high accuracy on a single image per leaf achieved by HairNet demonstrates that it is implementable at scale. We propose that HairNet replaces the current visual scoring of this trait. The HairNet code and dataset can be used as a baseline to measure this trait in other species or to score other microscopic but important phenotypes.
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  • 文章类型: Journal Article
    Trichomes are unicellular or multicellular epidermal structures that play a defensive role against environmental stresses. Although unicellular trichomes have been extensively studied as a mechanistic model, the genes involved in multicellular trichome formation are not well understood. In this study, we first classified the trichome morphology structures in Capsicum species using 280 diverse peppers. We cloned a key gene (Hairiness) on chromosome 10, which mainly controlled the formation of multicellular non-glandular trichomes (types II, III, and V). Hairiness encodes a Cys2-His2 zinc-finger protein, and virus-induced gene silencing of the gene resulted in a hairless phenotype. Differential expression of Hairiness between the hairiness and hairless lines was due to variations in promoter sequences. Transgenic experiments verified the hypothesis that the promoter of Hairiness in the hairless line had extremely low activity causing a hairless phenotype. Hair controlled the formation of type I glandular trichomes in tomatoes, which was due to nucleotide differences. Taken together, our findings suggest that the regulation of multicellular trichome formation might have similar pathways, but the gene could perform slightly different functions in crops.
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  • 文章类型: Case Reports
    Wiedemann-Steiner syndrome (WSS) is a rare syndromic condition in which intellectual disability (ID) is associated with hypertrichosis cubiti, short stature, and characteristic facies. Following the identification of the causative gene (KMT2A) in 2012, only 31 cases of WSS have been described precisely in the literature. We report on 33 French individuals with a KMT2A mutation confirmed by targeted gene sequencing, high-throughput sequencing or exome sequencing. Patients\' molecular and clinical features were recorded and compared with the literature data. On the molecular level, we found 29 novel mutations. We observed autosomal dominant transmission of WSS in 3 families and mosaicism in one family. Clinically, we observed a broad phenotypic spectrum with regard to ID (mild to severe), the facies (typical or not of WSS) and associated malformations (bone, cerebral, renal, cardiac and ophthalmological anomalies). Hypertrichosis cubiti that was supposed to be pathognomonic in the literature was found only in 61% of our cases. This is the largest series of WSS cases yet described to date. A majority of patients exhibited suggestive features, but others were less characteristic, only identified by molecular diagnosis. The prevalence of WSS was higher than expected in patients with ID, suggesting than KMT2A is a major gene in ID.
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