Textiles

纺织品
  • 文章类型: Journal Article
    该研究探讨了三层纺织服装供应链中不确定需求下的战略定价和质量改进决策。根据面料制造商(FM)是否在质量上进行投资,以及服装制造商(GM)或服装零售商(GR)是否愿意分担成本,构建了五个博弈模型来考察不同成员成本分担对最优决策和利润的影响。通过进行理论和数值分析,我们发现:(1)GM或GR的成本分担对质量改进起着积极的作用,至于谁的成本分担根据成本分担的比例在提高质量方面表现更好,质量改进是最高的,两个成员同时分担成本。(2)当两个成员同时分担成本时,FM获得最高的利润,然而,谁的成本分摊对调频公司更有利可图,也与成本分摊比例有关;简而言之,FM总是从成本分摊中受益,无论一个成员这样做还是两个成员这样做。(3)当只有GR(GM)分担成本时,GM(GR)获得最高利润,结果表明,如果一个成员分担了成本,参与费用分摊的其他成员是否可以根据其比例使前者受益。具体来说,当GM(GR)选择分担成本且比例相对较低时,GR(GM)加入成本分摊对前者有利;否则,是有害的。
    The study explores the strategic pricing and quality improvement decisions under uncertain demand in a three-layer textile and garment supply chain. According to whether the fabric manufacturer (FM) invests in quality or not and whether the garment manufacturer (GM) or garment retailer (GR) is willing to share the costs or not, five game models are constructed to investigate the impact of different members\' cost sharing on the optimal decisions and profits. By conducting a theoretical and numerical analysis, we find that: (1) The GM\'s or GR\'s cost sharing plays a positive effect on the quality improvement, as for whose cost sharing performs better in improving the quality depending on the proportion of cost sharing, and the quality improvement is highest with both members share the costs simultaneously. (2) The FM receives the highest profit when both members share the costs simultaneously, however, whose cost sharing is more profitable for the FM is also related to the proportion of cost sharing; in short, the FM always benefits from the cost sharing, no matter one member does this or two members do this. (3) The GM (GR) gains the highest profit when only the GR (GM) shares the costs, and the results indicate that if one member has shared the costs, whether the other member engaging in cost sharing could benefit the former depending on their proportions. Specifically, when the GM (GR) chooses to share the costs and the proportion is relatively low, the GR(GM) joining in cost sharing is beneficial to the former; otherwise, is harmful.
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  • 文章类型: Journal Article
    分散的手织机传统上在整个印度都在使用。Siripuram村对传统Pochampally/Ikat工作的了解被视为案例研究,以提供可持续解决方案的详细研究。根据房屋状况调查,近65%的村庄人口仅将编织和染色工作作为主要职业,并从染色作业中平均产生127KLD的洗涤水。最初,进行了地形测量(空中无人机;PHANTOM4RTK无人机)以了解排水模式,海拔,和轮廓,并与家用和染色功能相通。在好氧(SBRAe)和好氧缺氧(SBRAex)微环境下,使用顺序分批操作在实验室规模上研究了废水和染料洗涤水的组合特性。由于注入的缺氧微环境,SBRAex微环境显示出有效的有机和养分去除作用。处理研究描述了76.2%的基质去除,73.3%的磷酸盐,硝酸盐去除率为81.6%。基于实验室规模的研究,设计了闭环分散式污水处理系统以确保零液体排放(ZLD)。
    Decentralized handlooms are being traditionally practised throughout India. Siripuram village known for traditional Pochampally/Ikat work was considered as a case study for detailed investigation towards providing a sustainable solution. Nearly 65% of village population solely depend on weaving and dyeing works as primary occupation based on the household survey and generated wash water of 127 KLD on an average from the dyeing operations. Initially, a topographical survey (Aerial drone; PHANTOM 4 RTK UAV) was carried out to understand the drainage pattern, elevations, contours and interlinked with domestic and dyeing functions. The characteristics of combined wastewater and dye wash water were studied at lab scale using sequential batch (SBR) operation under aerobic (SBRAe) and aerobic-anoxic (SBRAex) microenvironments. SBRAex microenvironment showed effective organic and nutrients removal due to infused anoxic microenvironment. Treatment studies depicted 76.2% of organic fraction, 73.3% of phosphate, and 81.6% of nitrate removal. Based on the lab scale studies a closed-loop decentralized effluent treatment system was designed to ensure zero-liquid discharge (ZLD).
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  • 文章类型: Journal Article
    不同工业活动使用和生产的有害物质对环境和人类健康构成潜在风险。不同的物理化学和/或生物过程用于工业废水处理;这些方法,然而,可能无法有效去除这些物质。进行这项研究是为了比较评估通过土耳其主要工业使用的常规废水处理工艺去除有害物质。在纺织制造和皮革生产部门进行了四季监测研究,代表土耳其的工业活动。分析了欧盟定义的45种优先物质和《土耳其地表水质量条例》中列出的250种特定污染物的样品。对于这两种废水,预处理后进行生物处理,它们的特征表明有机物几乎被完全去除。除了二氯甲烷(去除44-51%)和二恶英和二恶英样化合物(去除64-69%)。此外,对金属获得了不同的去除率(16-97%);观察到B的去除率较差,Ba,Ag,Sb,还有Si。剩余的金属(Cu,Pb,Sb,V,纺织用硅;Cr,Cu,Sb,处理过的废水中皮革废水的Si)仍高于接受水体的环境质量标准(EQS)。研究表明,现有的处理工艺不足以有效去除有害物质,因此迫切需要对其进行改进。最后,提出了针对特定污染物的先进处理技术及其单位处理成本。
    Hazardous substances used and produced by different industrial activities pose a potential risk to the environment and to human health. Different physicochemical and/or biological processes are used in industrial wastewater treatment; these methods, however, may not be effective in removing these substances. This study was carried out to comparatively evaluate the removal of hazardous substances through conventional wastewater treatment processes that are used by major industries in Turkey. A four-season monitoring study was carried out in textile manufacturing and leather production sectors, representing industrial activities in Turkey. Samples were analyzed for 45 priority substances defined by the European Union and 250 specific pollutants listed in the Turkish Regulation on Surface Water Quality. For both wastewaters, where biological treatment was performed after pretreatment, their characteristics showed that organics were almost completely removed. except for dichloromethane (44-51% removals) and dioxin and dioxin-like compounds (64-69% removals). Additionally, different removal ratios (16-97%) were obtained for metals; the poorer removal was observed for B, Ba, Ag, Sb, and Si. The remaining metals (Cu, Pb, Sb, V, Si for textile; Cr, Cu, Sb, Si for leather effluents) in the treated wastewaters were still higher than environmental quality standards (EQS) of receiving water bodies. The study revealed that existing treatment processes were not adequate for efficient hazardous substance removal and there is an urgent need to improve them. Finally, advanced treatment technologies were suggested for specific pollutants together with their unit treatment costs.
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  • 文章类型: Case Reports
    This paper describes the involvement of our laboratory in a Western Australian \'cold-case\' investigation that spanned 24 years. The investigation was widely considered to be the largest in Australian history. During the investigative phase, our laboratory was tasked with the collection of trace evidence of all types in connection with a sexual assault and two homicides that were suspected to be related. Textile fibres represented the vast majority of trace evidence recovered. A much greater quantity of fibres (>10,800) was collected than would be typical for a routine case, as fibres of any colour or type were potentially of investigative value. The investigation was unprecedented in its scale, and presented numerous challenges in terms of evidence recovery, analysis, interpretation, reporting, and provision of testimony. A textile fibre microspectrophotometric (MSP) database was developed specifically for the interpretation of data in connection with the investigation. The database currently contains over 25,000 normalised and first derivative spectra of casework, validation and reference textile fibres. A fibre comparison strategy was devised, involving the identification of preliminary fibre groups on the basis of corresponding/similar MSP spectra, and verification of these groups via brightfield and fluorescence comparison microscopy. A potential link to an automotive source was identified for one of the homicide victims during the investigative phase. After identification of a suspect, a total of 98 fibres recovered from victims and from a seized motor vehicle were found to correspond in properties to six different fibre types from known textile sources in connection with the suspect. A highly publicised criminal trial was held, and textile fibre evidence provided a major contribution to the trial findings, in which the accused was found guilty of two homicides.
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  • 文章类型: Journal Article
    In this article, we introduce and analyze an emerging polycentric governance model for addressing wastewater challenges in textile industrial parks in China. Unlike the conventional two-tier model with government and polluters only, the emerging model emphasizes multi-actor participation and presents new possibilities in enhancing the cost-effectiveness and alleviating the compliance deficiency. We introduce the model through a case study of the Binhai textile industrial park. The features of the model include levering the subject of monitoring, allowing collaborative wastewater treatment, employing the administrative power of local governing bodies, and engaging multiple local actors. To explain its formation, we adopt event sequence analysis, and point out the important role of local government as a facilitator and a regulator in the externally generated collaborative governance. We identified its success factors with pattern matching based on polycentric governance theories. We find the involvement of varied actors in the decision-making process of internal wastewater emission standard could lead to applicable policy making with high acceptance, which contributes to the environmental performance. To initiate the transition towards the new model, three conditions are required, including policy support from the government, the establishment of monitoring systems, and capacity building for actors.
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  • 文章类型: Case Reports
    Transcatheter Aortic Valve Implantation (TAVI) has become today a popular alternative technique to surgical valve replacement for critical patients. However, with only six years follow up on average, little is known about the long-term durability of transcatheter implanted biological tissue. Moreover, the high cost of tissue harvesting and chemical treatment procedures favor the development of alternative synthetic valve leaflet materials. In that context, thin, strong and flexible woven fibrous constructions could be considered as interesting candidates. However, the interaction of textile material with living tissue should be comparable to biological tissue, and the Foreign Body Reaction (FBR) in particular should be controlled. Actually, the porosity of textile materials tends to induce exaggerated tissue ingrowth which may prevent the implants from remaining flexible. The purpose of this preliminary animal case study is to investigate the influence of the valve leaflet yarn orientation on the fibrotic tissue ingrowth. For that purpose the in vivo performances of 45° inclined yarn woven valve leaflets implanted in juvenile sheep model were assessed after three months implantation. Results bring out that in the frame of this case study the development of fibrosis is limited with a woven fabric valve obtained from 45° inclined yarns.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    We estimated the association between occupational exposures to five different organic dusts: wood, animal, paper, textile and flour dust and the risk of developing rheumatoid arthritis (RA).
    This population-based case-control study analysed 12 582 incident cases and 129 335 controls. Participants were identified from national public authority and quality registers. Census data on occupations were collected 1960-2010 and we estimated the exposure to organic dust with the help of job-exposure matrices. We used logistic regression to assess the OR of seropositive or seronegative RA. Estimates were adjusted for the matching variables (sex, county, age and index year), education and occupational silica exposure.
    Exposure to animal dust was associated with an increased risk of RA among both men and women. The OR was 1.2 (95% CI=1.1 to 1.4) for seropositive RA and 1.3 (95% CI=1.1 to 1.5) for seronegative RA among ever exposed participants compared with unexposed. The risk increased with duration of exposure for seropositive RA, and participants who had been exposed in five or more censuses had an OR of 1.6 (95% CI=1.1 to 2.2, p for trend=0.003). Exposure to textile dust also generated a significant dose-response relationship for seropositive RA (p for trend=0.014). We detected no association between exposure to wood, paper or flour dust and risk of RA.
    Overall, exposure to animal dust and textile dust was associated with an increased risk of developing RA. These observations give further support to the notion that airborne exposures are involved in the aetiology of RA.
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  • 文章类型: Journal Article
    The resulting solutions from the cotton fabrics dyeing using the trichromy Procion HEXL, with NaCl as electrolyte, were electrochemically treated. These dyes have two azo groups as chromophores and two monochlorotriazinic groups as reactive groups in their structure. The combined oxidation/reduction at 125 mA cm-2 in a filter-press cell without compartment separation was carried out using an anode of Ti/SnO2-Sb-Pt and a cathode of stainless steel. This procedure has been effective in previous experiments using sulphate as electrolyte. A significant decrease in total organic carbon (TOC), chemical oxygen demand (COD), and total nitrogen (TN) was obtained. Moreover, the process took place efficiently. The average oxidation state (AOS) and the carbon oxidation state (COS) data confirmed the presence of stable oxidized intermediates in the electrolysed solution. The chromatography and the UV-Visible spectrophotometry assays indicated that full decolourisation is obtained at a loaded charge of around 0.81 Ah L-1 which is associated with an electrical energy per order (EEO) of 1.20 kWh m-3.
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  • 文章类型: Journal Article
    A pair of jeans produced false positive results upon testing for the presence of blood using the Kastle-Meyer (KM) test. Positive reactions were obtained from all unstained areas of the fabric tested. The peroxidase used in the manufacture of some jeans may be the causative agent for the observed false positive reactions; however, it was not possible to confirm this theory.
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