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Experimental Results of Helical Metal Expansion Joints Fabrication 螺旋金属伸缩接头制备的实验结果
Pub Date : 2023-09-01 DOI: 10.21741/9781644902691-3
Kurp Piotr, Danielewski Hubert, Cedro Leszek
Abstract. This paper discusses the technological assumptions for the production of helical metal expansion joint as a new type of expansion joints used to eliminate torsional deformations of industrial pipelines. The method of mechanically assisted laser forming, which was used as a manufacturing technology, was presented as well. Furthermore, technological parameters and experimental results obtained during the fabrication of helical metal expansion joints were presented. Mainly presented and discussed are the results such as: obtained geometry, forces necessary to produce the product, processing temperature, strain rate and others. Satisfactory treatment results were obtained, which are illustrated below.
摘要本文讨论了用于消除工业管道扭转变形的新型伸缩接头——螺旋金属伸缩接头的生产工艺设想。介绍了机械辅助激光成形的制造技术。介绍了螺旋金属伸缩接头的工艺参数和实验结果。主要介绍和讨论的结果是:获得的几何形状,生产产品所需的力,加工温度,应变率等。治疗结果令人满意,如下图所示。
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引用次数: 0
Job Satisfaction in the Healthcare Sector 医疗保健行业的工作满意度
Pub Date : 2023-09-01 DOI: 10.21741/9781644902691-51
M. Bsoul-Kopowska
Abstract. The objective of this article is to present research regarding the level of job satisfaction of physicians employed in healthcare institutions in the Silesian Voivodeship. The basis for the analysis is a survey carried out between August and October 2022, with a sample of 184 medical workers. The study was carried out by means of a diagnostic survey, using a questionnaire technique. Random purposive sampling was used. Regular surveys will make it possible to improve the stability of employment in the healthcare sector and can provide a basis for corrective measures to be taken by managers of healthcare facilities in order to increase the sense of job satisfaction among doctors.
摘要本文的目的是介绍关于西里西亚省医疗机构雇用的医生的工作满意度水平的研究。分析的基础是在2022年8月至10月期间对184名医务工作者进行的一项调查。本研究采用问卷调查的方式进行诊断性调查。采用随机有目的抽样。定期调查将有可能改善保健部门就业的稳定性,并可为保健设施管理人员采取纠正措施提供依据,以提高医生的工作满意度。
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引用次数: 0
Degradation of R35 Steel in 5% NaCl environment at 10°C R35钢在5% NaCl环境下在10℃下的降解
Pub Date : 2023-09-01 DOI: 10.21741/9781644902691-10
T. Lipiński
Abstract. Carbon steels are willingly used due to the favorable price-performance ratio. They usually do not operate in a non-corrosive state. However, there are products that are hard to protect against corrosion in their entirety. These products include pipes. It is easy to protect the outer layer of the pipe against aggressive environment. The problem with protection is caused by their inner surface. Typically, the working medium is the protective factor, usually filling the internal volume of the pipes completely. It happens, however, that corrosion occurs as a result of long storage of pipes in warehouses, usually in the open air. They are also used as working elements with partial liquid filling. They are then exposed to the environment. One of the corrosive agents is NaCl. The paper presents the results of corrosion rate tests of samples taken from R35 pipes in the environment of a 5% aqueous solution of NaCl at 10oC. The analyzes were carried out based on the determination of mass losses. On the basis of the tests carried out, the relationship between the rate of corrosion and the soaking time of the samples was determined. It was confirmed that on the basis of roughness parameters it is possible to draw conclusions about the suitability of steel for further operation.
摘要由于良好的性价比,碳钢很受欢迎。它们通常不在无腐蚀状态下工作。然而,有些产品很难完全防止腐蚀。这些产品包括管道。很容易保护管道的外层免受侵略性环境的侵害。保护的问题是由它们的内表面引起的。通常,工作介质是保护因素,通常完全填充管道的内部体积。然而,由于管道长期存放在仓库中,通常是露天的,因此会发生腐蚀。它们也可用作部分液体填充的工作元件。然后将它们暴露在环境中。其中一种腐蚀剂是NaCl。本文介绍了R35管样品在5% NaCl水溶液环境下的腐蚀速率试验结果。分析是在测定质量损失的基础上进行的。在试验的基础上,确定了试样的腐蚀速率与浸泡时间的关系。结果表明,在粗糙度参数的基础上,可以得出关于钢是否适合进一步操作的结论。
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引用次数: 0
Good Manufacturing Practices for Quality and Safety Management in the Food Industry 食品工业质量和安全管理的良好生产规范
Pub Date : 2023-09-01 DOI: 10.21741/9781644902691-34
A. Szczyrba
Abstract. The article presents a description of the design and implementation of the FMEA methodology in a food company dealing with the processing of vegetables and fruits, where it is used in combination with the HACCP system as a tool for ensuring product quality and as a means of improving the operational efficiency of the production cycle. The use of the FMEA method as support for HACCP in terms of safety and quality allowed for step-by-step analysis of the production cycle, provided additional knowledge about processes and ultimately positively influenced both the process and the product itself.
摘要本文介绍了一家食品公司处理蔬菜和水果加工的FMEA方法的设计和实施,它与HACCP系统结合使用,作为确保产品质量的工具,并作为提高生产周期操作效率的手段。在安全和质量方面,使用FMEA方法作为HACCP的支持,允许对生产周期进行逐步分析,提供有关过程的额外知识,并最终对过程和产品本身产生积极影响。
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引用次数: 0
Application of Zinc-Silver Impregnated Activated Carbons in Removal of Lead(II) and Mercury(II) Compounds from Groundwater 锌银浸渍活性炭在去除地下水铅(II)和汞(II)化合物中的应用
Pub Date : 2023-09-01 DOI: 10.21741/9781644902691-9
A. Kwak
Abstract. Nowadays activated carbon is a material generating great interest, as it is characterized by a vast surface area due to a high number of pores in its structure. Therefore, the main purpose behind its use is the filtration of impurities from air and water that can be adsorbed with high efficiency. Activated carbon can be easily modified as well. The paper describes activated carbon modification with copper-, manganese-, silver- and zinc salts. The effects of the selected impregnates and their concentrations were examined. The products included 5 adsorbent samples: four universal adsorbents, impregnated with all the above-mentioned salts, and one specific adsorbent sample, designed to adsorb lead(II) and mercury(II) ions and impregnated with zinc- and silver salts only. The premise was to obtain pure drinking water. Properties, such as bulk density, methylene blue number or iodine number were determined for the modified activated carbons. To test the efficiency of an improved adsorbent, an experiment with water highly contaminated with Pb(II) and Hg(II) was carried out, and its results revealed that absorption efficiency for these heavy metals exceeded 99.9%. The adsorber samples were also observed under a digital microscope to compare their appearance.
摘要目前活性炭是一种引起人们极大兴趣的材料,因为它的特点是由于其结构中有大量的孔隙而具有巨大的表面积。因此,其使用背后的主要目的是过滤空气和水中的杂质,可以高效地吸附。活性炭也很容易被修改。介绍了铜盐、锰盐、银盐和锌盐对活性炭的改性。考察了所选浸渍剂及其浓度的影响。产品包括5种吸附剂样品:4种通用吸附剂,浸渍上述所有盐;1种专用吸附剂样品,设计用于吸附铅(II)和汞(II)离子,只浸渍锌和银盐。前提是获得纯净的饮用水。测定了改性活性炭的堆密度、亚甲基蓝数、碘值等性能。为验证该吸附剂的吸附剂效能,对高污染水体Pb(II)和Hg(II)进行了实验,结果表明,该吸附剂对Pb(II)和Hg(II)的吸附效率均超过99.9%。在数码显微镜下观察吸附样品,比较其外观。
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引用次数: 0
Commercialization of Research Results – Overview of Assumptions and General Definitions 研究成果的商业化-假设和一般定义概述
Pub Date : 2023-09-01 DOI: 10.21741/9781644902691-32
JAGUSIAK-KOCIK Marta, Janasik Michał
Abstract. The work is based on a literature review in the field of commercialization of scientific research – it presents various definitions of commercialization, the concept of indirect and direct commercialization, as well as ways of financing the commercialization of research results. The aim of the work is to present and learn about various approaches to the concept of commercialization, to show what forms the process of commercialization of research results takes place and how it can be financed. The aim is to identify and analyze the research area, because the work is an introduction to practical research and the creation of a model for the commercialization of scientific research results in the largest research network in Poland, dealing with i.e. providing attractive and competitive technological solutions.
摘要。这项工作是基于对科学研究商业化领域的文献综述——它提出了商业化的各种定义、间接和直接商业化的概念,以及资助研究成果商业化的方法。这项工作的目的是介绍和学习实现商业化概念的各种方法,展示研究成果商业化过程的形式,以及如何为其提供资金。目的是确定和分析研究领域,因为这项工作是对实际研究的介绍,并在波兰最大的研究网络中为科学研究成果的商业化创建模型,即提供有吸引力和有竞争力的技术解决方案。
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引用次数: 0
Complaint Analysis as Part of Service Quality and Safety Management 投诉分析作为服务质量和安全管理的一部分
Pub Date : 2023-09-01 DOI: 10.21741/9781644902691-33
M. Ingaldi
Abstract. Quality and safety of products and services are very important factors influencing customers' decisions about the purchase. They affect the level of customer satisfaction, but also their safety during consumption. A great deal of information about customers' perceptions of products can be inferred from the complaints they file. Complaint indicators can easily be used to analyze the quality of services available on the market. The purpose of the research was to analyze complaints filed by customers of a chosen e-shop from Poland. The analysis was based on data from January 2017 to December 2021. An analysis was made of the number of complaints filed in relation to the number of orders placed. The percentage of complaints recognized by the manufacturer and the reasons for filing complaints were presented. This analysis should be a starting point for the researched e-shop for improvement measures to raise the level of customer satisfaction.
摘要产品和服务的质量和安全是影响顾客购买决策的重要因素。它们影响着顾客的满意度,也影响着他们在消费过程中的安全。从顾客提出的投诉中可以推断出大量关于顾客对产品的看法的信息。投诉指标可以很容易地用来分析市场上提供的服务质量。本研究的目的是分析波兰某电子商店顾客提出的投诉。该分析基于2017年1月至2021年12月的数据。对提出的投诉数量与所下订单数量之间的关系进行了分析。提出了制造商承认的投诉百分比和提出投诉的原因。这一分析应作为研究网店改进措施的出发点,以提高顾客满意度水平。
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引用次数: 0
Microstructural Analysis of Wound Composites with Considerations on the Fiber Winding Force 考虑纤维缠绕力的缠绕复合材料微观组织分析
Pub Date : 2023-09-01 DOI: 10.21741/9781644902691-6
P. Krysiak
Abstract. The paper concerns issues related to the fabrication and microstructural analysis of carbon and glass fiber-reinforced epoxy composites. For the purposes of the tests, ring samples of carbon fiber and glass fiber were fabricated, each sample being made of the same amount of material. The rings were produced by circumferentially wrapping fibers onto a rigid core. During winding, the fiber tension was changed for each sample to investigate whether the amount and distribution of fibers in the composite depending on the force applied. The applied tension forces ranged from 18 to 138 N. In the next stage of tests, small fragments were cut out of the rings, cutting perpendicularly to the arrangement of fiber bundles. The cut elements were then embedded in epoxy resin. The microsections prepared in this were ground using a grinding disc with a gradation of 80 to 4000 and then polished, washed and dried. After these treatments, microscopic photos of the tested surfaces were taken. Observations were made using a NEOPHOT 32 microscope with an integrated camera and a KEYENCE VHX microscope. The volume fraction of voids and discontinuities in the matrix, as well as the volume fraction of fibers, were determined by measuring the percentage of the surface areas occupied by the appropriate components of the composite. On each cross-section of individual samples, photographs were taken in three planes parallel to the composite layers and three planes perpendicular to the fibers  in the matrix system. The image analysis method was used for verification, in which it is assumed that the assessment of fiber distribution in a two-dimensional section is representative of its volumetric distribution. This method is mainly used to analyze the distribution of fibers with a constant cross-section. The most important conclusions from the conducted analyses allow the authors to state that in both composites the fibers in the matrix are highly packed and that there was no significant and noticeable effect of fiber tension during winding on the "packing" density of fibers in the composites.
摘要本文研究了碳纤维和玻璃纤维增强环氧复合材料的制备和微观结构分析。为了测试的目的,制造了碳纤维和玻璃纤维的环形样品,每个样品由相同数量的材料制成。这些环是通过将纤维环绕在刚性芯上而产生的。在缠绕过程中,改变每个样品的纤维张力,以研究纤维在复合材料中的数量和分布是否取决于施加的力。施加的拉力范围从18到138牛顿。在下一阶段的测试中,从环上剪下小碎片,垂直于纤维束的排列。然后将切割的元件嵌入环氧树脂中。在此过程中制备的显微切片使用分级为80至4000的研磨盘进行研磨,然后抛光,洗涤和干燥。经过这些处理后,拍摄了被测表面的显微照片。使用NEOPHOT 32集成相机显微镜和KEYENCE VHX显微镜进行观察。基体中空隙和不连续的体积分数,以及纤维的体积分数,是通过测量复合材料中适当组分所占表面积的百分比来确定的。在单个样品的每个横截面上,分别在与复合材料层平行的三个平面和与基质系统中的纤维垂直的三个平面上拍摄照片。采用图像分析方法进行验证,其中假设对二维截面纤维分布的评估代表其体积分布。该方法主要用于分析等截面纤维的分布。从所进行的分析中得出的最重要的结论使作者能够指出,在这两种复合材料中,基体中的纤维都是高度堆积的,并且在缠绕过程中纤维张力对复合材料中纤维的“堆积”密度没有显著和明显的影响。
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引用次数: 0
Assessment of the Application of Lumpy Steel Slag as an Aggregate Replacement in Concrete 块状钢渣在混凝土中替代骨料的应用评价
Pub Date : 2023-09-01 DOI: 10.21741/9781644902691-17
A. Harwat
Abstract. The need to protect the Earth's resources necessitates pro-ecological activities. One of the aspects of these activities is the rational management of post-production and post-consumer waste. One of the materials whose production significantly pollutes the natural environment is concrete. On the other hand, the analysis of the literature carried out in the work showed that it is a material that can absorb a significant amount of processed waste used as a substitute for cement or aggregate. These are polymer materials of various origins, residues from biomass combustion and, above all, steel slag, which has long been used in construction in various forms. One of the types of this material is lumpy steel slag, which has been used for years mainly in road construction as a replacement for crushed stone in the construction of the road base. The paper presents instrumental tests of the influence of the lump slag content used as a replacement for basalt aggregate on selected parameters of concrete (compressive strength, water absorption, volume density). The research showed that such a modification of the mixture composition does not significantly change the tested parameters. The lump slag can therefore be successfully used in the production of normal and heavy concrete.
摘要保护地球资源的需要需要有利于生态的活动。这些活动的一个方面是合理管理生产后和消费后的废物。混凝土是生产过程中对自然环境造成严重污染的材料之一。另一方面,对工作中进行的文献分析表明,它是一种可以吸收大量加工废物的材料,可作为水泥或骨料的替代品。这些是各种来源的聚合物材料,生物质燃烧的残留物,尤其是长期以来以各种形式用于建筑的钢渣。这种材料的一种是块状钢渣,多年来主要用于道路建设,作为道路基层施工中碎石的替代品。本文通过仪器试验研究了用矿渣块代替玄武岩骨料对混凝土抗压强度、吸水率、体积密度等参数的影响。研究表明,这种混合物成分的修改不会显著改变测试参数。因此,块状矿渣可以成功地用于生产普通和重质混凝土。
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引用次数: 0
Ergonomics of Organizational and Technical Space in the Educational Process of Children in Kindergarten 幼儿园儿童教育过程中组织与技术空间的人机工程学
Pub Date : 2023-09-01 DOI: 10.21741/9781644902691-47
Niciejewska Marta
Abstract. Ergonomics is an interdisciplinary science that applies to various aspects of our lives, extending beyond the workplace. Ergonomics enhances work, education, and leisure activities for lifelong well-being. This article presents the ergonomic principles of the preschool child's world that influence the correct psychophysical development of the child. A quantitative study was conducted in seven non-public kindergartens in the Silesian voivodeship, using direct interviews and elements of overt observation. The study aimed to identify strengths and weaknesses in the ergonomics of kindergartens' organizational and technical spaces, specifically focusing on legal requirements for safe and ergonomic working conditions for children up to the age of 6. The results highlight the challenges faced by designers and kindergarten directors in creating an ergonomic environment for children, revealing numerous difficulties in this area. There is increasing recognition of the importance of ergonomic and safe organizational and technical conditions in early childhood education. The obtained research results are a valuable contribution to a larger study on ergonomics and safety in Polish pre-schools, scheduled for the coming years.
摘要人体工程学是一门跨学科的科学,适用于我们生活的各个方面,延伸到工作场所之外。人体工程学提高了工作、教育和休闲活动的终身福祉。本文介绍了学龄前儿童世界的人体工程学原理,这些原理影响着儿童正确的心理生理发展。采用直接访谈和公开观察的方法,在西里西亚省的七所非公立幼儿园进行了定量研究。该研究旨在确定幼儿园组织和技术空间的人体工程学优势和劣势,特别关注6岁以下儿童安全和符合人体工程学的工作条件的法律要求。结果突出了设计师和幼儿园园长在为儿童创造符合人体工程学的环境方面所面临的挑战,揭示了这一领域的许多困难。人们日益认识到幼儿教育中符合人体工程学和安全的组织和技术条件的重要性。获得的研究结果是一个有价值的贡献,更大的研究人体工程学和安全在波兰的学前教育,计划在未来几年。
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引用次数: 0
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Quality Production Improvement and System Safety
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