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Journal articles on the topic 'Printing plants'
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1
Mountain, Julie. "The plants in my street." Nursery World 2023, no. 12 (December 2, 2023): 26–27. http://dx.doi.org/10.12968/nuwa.2023.12.26.
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Verhoeff, A. P., J. Suk, and J. H. van Wijnen. "Residential indoor air contamination by screen printing plants." International Archives of Occupational and Environmental Health 60, no. 3 (April 1988): 201–9. http://dx.doi.org/10.1007/bf00378698.
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Li, Linlin, Yuanyuan Han, Lihua Wang, Wei Jiang, and Haiguang Zhao. "Dye Plants Derived Carbon Dots for Flexible Secure Printing." Nanomaterials 12, no. 18 (September 13, 2022): 3168. http://dx.doi.org/10.3390/nano12183168.
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Carbon dots (C-dots) are fluorescent nanomaterials, exhibiting excellent structure-dependent optical properties for various types of optical and electrical applications. Although many precursors were used for C-dots production, it is still a challenge to produce high-quality C-dots using environmentally-friendly natural precursors. In this work, multiple-colored colloidal C-dots were synthesized via a heating reaction using natural plant dyes as precursors, for example, Indigo, Carcuma longa, and Sophora japonica L. The as-prepared C-dots have absorption in the UV range of 220 to 450 nm with the typical emission ranging from 350 to 600 nm. The as-obtained C-dots have a quantum yield as high as 3.8% in an aqueous solution. As a proof-of-concept, we used the as-prepared C-dots as fluorescence inks for textile secure printing. The printed patterns are almost invisible under daylight and have distinct and clear patterns under 365 and 395 nm light, proving the great potential in optical anti-counterfeiting. This work demonstrates the advanced strategy for high-performance C-dots production from natural dyes and their potential application in flexible secure printing systems.
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BOWDEN, J. T. "Establishment of Complete Bleaching, Dyeing, Printing and Finishing Plants." Journal of the Society of Dyers and Colourists 87, no. 12 (October 22, 2008): 422–25. http://dx.doi.org/10.1111/j.1478-4408.1971.tb02983.x.
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Sari, Dewi Puspita, Yessy Ratna Siwie, Alfian Primahesa, and Harlita Harlita. "Botanical Printing dari Tumbuhan Pteridophyta Tahura KGPAA Mangkunagoro I." Wahana-Bio: Jurnal Biologi dan Pembelajarannya 14, no. 2 (June 4, 2023): 85. http://dx.doi.org/10.20527/wb.v14i2.14703.
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Botanical printing is a method of printing motifs from plant parts such as leaves, flowers, and bark onto natural fiber media, animal skin, ceramics, and wood. Botanical printing products generally use mordants (metals and minerals) and natural dyes from species of seed plants. Research on pteridophytes in Tahura KGPAA Mangkunagoro I has been conducted in 2019, but is still limited to identification and has not been utilized for art crafts. The purpose of this study is to create textile products with pteridophyte leaf motifs from the Tahura KGPAA Mangkunagoro I area. The type of research conducted is qualitative descriptive research. Sampling was done using purposive sampling techniques. The creation of botanical printing art crafts uses textile materials from plants such as rayon and canvas. The textile raw materials are processed using steaming techniques. The research results show that 20 species of pteridophytes from 9 different families (Polypodiaceae, Thelypteridaceae, Lycopodiaceae, Nephrolepidaceae, Dryopteridaceae, Pteridaceae, Hymenophyllaceae, Asplenidaceae, Athyriaceae) can be used as a source of natural motifs in the creation of botanical printing art crafts.
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Febjislami, Shalati, and Sanna Paija Hasibuan. "OPTIMASI DAN MODIFIKASI METODE KOLEKSI STOMATA TANAMAN KACANG PANJANG (Vigna sesquipedalis L. Fruwith) MENGGUNAKAN METODE STOMATAL PRINTING." Jurnal Pertanian Presisi (Journal of Precision Agriculture) 7, no. 1 (2023): 59–73. http://dx.doi.org/10.35760/jpp.2023.v7i1.8275.
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Long beans are a popular horticultural crop known for their nutritious green vegetables, particularly the young fruit and leaves. There have been numerous studies conducted on the cultivation and breeding of long beans. However, further research is required to obtain more data on preparation of stomata imprint and morphology. This study aims to examine the optimization and modification of stomatal printing methods on long bean plants to produce imprint in a short time with clear quality. The experiment was carried out from April to June 2021 at the Plant Physiology Laboratory, Department of Agronomy, Faculty of Agriculture, Andalas University, using stomatal printing method on long bean plant leaves. The experiment consisted of two stages: first, the removal of cuticle and trichome; and second, the method of application of the printing material and the drying time of the imprint. Based on the experimental results, it was found that stomatal imprint of long bean plants could be obtained without having to remove the cuticle or trichomes. Applying a thin layer of nail polish for at least 20 minutes can produce 100% imprinted stomata, while using a thin layer of adhesive glue takes at least 10 minutes. Adhesive glue can be used as an alternative to nail polish with faster drying time and clearer imprint results in the stomatal printing method. The stomata number of long bean plants is enormous, with a density of 184-237 per mm2. The stomata type of long bean plants is parasitic.
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Shaw, Phil. "Phytochromography— Screen Printing with Plants: Research into Alternative Ink Technology." Leonardo 32, no. 1 (February 1999): 33–39. http://dx.doi.org/10.1162/002409499552975.
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Doubts about the true nature of recently introduced “water-based” screen-printing inks prompted research into the possibility of producing genuinely water-based inks in which both pigment and thickener are derived from vegetable sources. Literature suggests that not only is this possible but it might even be viable as an industrial process. The author's research concentrates primarily on the development of a range of “process,” or “trichromatic,” screen-printing colors from plants, for which the author has coined the term, “Phytochromography.” To complement this work, the author describes the establishment of an “ink garden” capable of supplying quantities of plant material for further research. Issues relating to the environment, occupational health and sustainability are also touched upon. Initial results of this research show considerable cause for optimism, although some problems remain.
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Parish, Daniel. "Using 3D Printing for Teaching and Outreach." Opflow 50, no. 5 (May 16, 2024): 8–9. http://dx.doi.org/10.1002/opfl.1963.
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The water industry is a valuable and often overlooked asset to a functioning, successful society. Water utilities have dreams and nightmares about the communities they serve touring their treatment plants. To educate and benefit the public, consider using three‐dimensional (3D) printing to create models of water distribution and treatment systems.
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Larsen, Henrik Fred, Jens Tørsløv, and Axel Damborg. "Areas of intervention for cleaner technology in the Danish printing industry — focus on wastewater problems." Water Science and Technology 33, no. 6 (March 1, 1996): 29–37. http://dx.doi.org/10.2166/wst.1996.0078.
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The objective of the project was to point out and prioritize areas of intervention for cleaner technology in the Danish printing industry, with a focus on wastewater problems. The processes, chemicals etc. included are estimated to cover more than 90% of all professional printing production in Denmark today. The main tool used for appointing and prioritizing areas of intervention for cleaner technology was a scoring model combining environmental hazard identification of the chemicals with estimated potential amount of matching chemicals emitted to municipal wastewater treatment plants. Seven areas were pointed out as high priority areas and two of these were identified as highest priority areas. These two areas are “the screen frame cleaning in screen printing” and “the cleaning of flexographic printing/packaging gravure printing machines after use of water dilutable inks”.
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Bidu, J. M., B. Van der Bruggen, M. J. Rwiza, and K. N. Njau. "Current status of textile wastewater management practices and effluent characteristics in Tanzania." Water Science and Technology 83, no. 10 (April 5, 2021): 2363–76. http://dx.doi.org/10.2166/wst.2021.133.
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Abstract Textile wastewater from wet processing units is a major environmental problem. Most chemicals, including dyes, are only partly consumed, resulting in highly colored wastewater containing a variety of chemicals released into the environment. This paper gives information on the current management of textile wastewater in Tanzania. A semiquantitative analysis was done to identify the main types of chemicals used in wet processing units, wastewater characteristics and existing wastewater treatment methods in the textile industry. The performance evaluation of the existing wastewater treatment plants is also discussed. The advantages of integrating constructed wetlands with the existing treatment facilities for textile wastewater are explained. It has been observed that pretreatment and dying/printing of the fabrics are the main two processes that produce wastewater in many textile companies. Main pollutants are chemicals used from pretreatment and materials removed from de-sizing, bleaching and scouring processes. Dyes, printing pigments and dye auxiliaries are the main pollutants from the dyeing/printing process. Most of the textile companies in Tanzania are equipped with effluent treatment plants. Wastewater treatment plants have basically similar units, which are coagulation-flocculation, sedimentation through clarifiers and aerobic reactor. However, their effluents do not meet discharge limits stipulated by the Tanzania Bureau of Standards (TBS).
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Lavanya, B., R. Vennila, and Martin Sankoh. "Mathematical Modelling of MX/G(a, b)/1 Bulk Service Queue Model with Two Vacations and Setup Time in Ceramic Technology." Mathematical Problems in Engineering 2022 (October 27, 2022): 1–18. http://dx.doi.org/10.1155/2022/2771494.
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The orthodox way of tile printing results in mulish production. To tame this, digital inkjet printing technology was imposed. In this article, a mathematical prototype is designed exclusively for the tile printing wing. The various plants coming under printing are correlated to the proposed prototype. The article throws light on the functioning of the prototype. The prototype turns up subservient to bulk service queue models with two types of vacations. The prototype is resolved under the supplementary variable technique. The prototype with peculiar conditions is proved to be the existing model. Anticipated line distance, awaited active duration, awaited standby time, and expected idle period were computed. Thus, the total average cost is acquired for diverse vacation values. The main intention of the pattern is to downside the total average cost.
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VOLOKHOV, M. A., and A. V. DROBOTOV. "AUTOMATED SYSTEM FOR PREPARING 3D MODELS FOR THE PRODUCTION OF PRODUCTS ON ADDITIVE INSTALLATIONS." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 8(279) (September 2023): 51–54. http://dx.doi.org/10.35211/1990-5297-2023-8-279-51-54.
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The problem of the duration of the preparation of models for 3D printing is considered, in order to reduce the complexity of the process of preparing the model for production at additive plants and the production itself. Connection and data exchange via socket between the server and the CuraEngine engine are described. The results of the duration of preparation of 3D models for printing with and without the proposed system are compared.
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Song, Hyung-Jun, and Hyunho Lee. "Colored Photovoltaics via Printing Technology." Journal of Flexible and Printed Electronics 1, no. 1 (August 2022): 29–44. http://dx.doi.org/10.56767/jfpe.2022.1.1.29.
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Building integrated photovoltaic (BIPV) plays an essential role in realizing net-zero energy buildings. Unlike utility-scale photovoltaic (PV) power plants, the aesthetic of BIPV is a crucial issue for entering the market. Therefore, the demand for colored PV increases rapidly to fulfilling the increased energy consumption in an urban area. In this review, we would like to introduce the current status of colored PVs and four dominant printing-based approaches for demonstrating them. First, the Fabry-Perot filter, controlling the device's thickness, intensifies the PVs' color. Secondly, bandgap engineering of the light-absorbing layer enables us to generate a color by transmitting a specific range of incident light. Third, the selective layer, multiple stack of two dielectric layer, provides color to PVs. Lastly, the printing of luminophore on the top of PVs makes them colorful by converting high energy photons to visible ones. The progress of colored PV technology will help PVs enter into BIPV market by providing an aesthetic view to them.
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Sulastri, Aini, Ulli Kadaria, Jumiati Jumiati, and Putranty Widha Nugraheni. "Apu Wood (Pistia stratiotes) as Phytoremediation Agent of Screen-printing Wastewater." Advances in Tropical Biodiversity and Environmental Sciences 7, no. 1 (April 28, 2023): 22. http://dx.doi.org/10.24843/atbes.2023.v07.i01.p04.
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Abstract. The screen-printing process produces wastewater like organic compounds that are difficult to degrade and heavy metals such as chromium, copper, manganese, and lead, which are toxic and can accumulate in the human body through the food chain. Phytoremediation is one method that utilizes plants' ability to reduce organic and inorganic pollutants, including heavy metals. Objective: This study aimed to describe the concentration of screen-printing waste that can be tolerated by apu wood plants and analyze the effectiveness of apu wood as a heavy metal remediator. Technology or Method: The method used in this research is a combination of filtration and phytoremediation using apu wood to reduce heavy metals such as Pb and Cr,6+ and a preliminary test of Pb and Cr6+ contained in the screen-printing wastewater was carried out. Results: Apu wood lives and thrives on screen-printing wastewater, with an average of 34 new individuals' tillers growth within 15 days. The propagation of apu wood in screen-printing wastewater produced total biomass with an average of 145 grams per reactor. The effectiveness of apu wood as a remediator of Pb was 13.65%, and accumulated in the leaves was 0.0911 mg/L. The accumulation of Cr6+ in the leaves was 0.6635 mg/L. The Cr6+ component in the waste during 15 days of treatment did not show a positive effect on metal removal because the higher chromium element oxidation reaction occurred in the wastewater during the research process.
Keywords Apu wood; chromium (VI); filtration; phytoremediation.
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Maryati, T., T. Anggraini, and T. Nugroho. "The effect of pH and tanning agents on the quality of sheep leather using the ecoprinting dyeing method." IOP Conference Series: Earth and Environmental Science 1001, no. 1 (March 1, 2022): 012037. http://dx.doi.org/10.1088/1755-1315/1001/1/012037.
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Abstract Leather eco-printing is an eco-friendly dyeing technique performed by transferring colors from plants. Therefore, this study aims to investigate the effect of pH and tanning agents on the quality of sheep leather using eco-printing dyeing method to produce an eco-friendly animal product. A total of 30 sheep crust leather were randomly assigned using a 2 × 5 factorial arrangement, with three replications. The first factor was the leather tanning agent namely vegetable and mineral, while the second was pH of 5, 6, 7, 8, and 9. The plants used in eco-printing were Kenikir (Cosmos caudatus) leaves, Kenikir flowers, Jatropha (Jatropha curcas) leaves, Ganitri (Elaeocarpus ganitrus) leaves, Ferns (Pteridophyta) leaves, Lanang (Oroxylum indicium) leaves and Teak (Tectona grandis) leaves. Color sharpness and fastness data were collected and then analyzed using a two-way analysis of variance followed by Duncan’s Multiple Range Test. The results showed interactions between the tanning method and pH (P = 0.01) on color sharpness, with the highest values produced in mineral leather processed under pH 9. Mineral leather had higher color sharpness and fastness values with P < 0.05 compared to vegetables. Furthermore, the pH significantly affected sharpness (P < 0.01) but had no effect on colorfastness. Based on the results, the combination of mineral tanning with a pH of 9 can be applied for eco-printing to produce the best sheep leather product.
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Rostaman, Rostaman, and Bambang Sugeng Suryatna. "Evaluasi Produktivitas Kutu Lak, Laccifer lacca Kerr. (Hemiptera: Kerridae) pada Tiga Jenis Tanaman Inang." Jurnal Entomologi Indonesia 6, no. 2 (December 15, 2016): 70. http://dx.doi.org/10.5994/jei.6.2.70.
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Lac insects (Laccifer lacca Kerr) live parasitically on “kosambi” plants, and produce resins that are called lac. Lac are used for electronics, printing, textile, clothing, cosmetics, and food industry. The insects also live on various plants. The goal of this research was to evaluate the population quality of Lac insect that live on three host plants. The best parameter for population quality was biomass or lac production. Three host plants were inoculated by broods. The result showed that “kosambi” was the best host plant for the insect due to higher biomass (i.e lac production) than “kabesak putih” and “kabesak hitam” plants.
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Aanchal Manuja, Itee Ojha, and Dr. Monisha Singh. "Eco-Printing: Domestic technique of textile printing using the leaves of Rose Indica." international journal of engineering technology and management sciences 7, no. 3 (2023): 116–21. http://dx.doi.org/10.46647/ijetms.2023.v07i03.016.
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Clothing is one of the basic needs of human being; it has many functions like protection, identification, modesty, status and adornment. Human beings always loved to adorn their body and clothes by various techniques of value addition. Printing their clothes with colours are one of them. There are many printing techniques which can be used to print the clothes at domestic level like block printing, screen printing, stencil printing, hand printing etc. One of the latest techniques is eco printing. It is a technique of printing clothes by putting various parts of plants into the layers of fabric and steaming them for specific time period. Rose Indica (Rose flower) have many medicinal property, petal of rose flower is used in various edible and cosmetic products, but almost in all cases the leaves of this plant is discarded. In this experimental study an effort has been made to develop botanic print of rose leaves on silk and cotton fabric, standardizing the process and testing the colourfastness of the prints. Developed prints were tested for colourfastness to washing, dry cleaning, perspiration, rubbing, and sunlight exposure by following various ISO and AATCC standards, as no harmful chemicals were used, the developed products are also considered as eco-friendly. Results shows that the rose leaves printed cotton fabric develop clear print on fabric with bright colours; it also produces excellent colour fastness to washing, perspiration, dry cleaning and crocking but it exhibit poor colourfastness to exposure to sunlight.
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Mirzaei, Mahta, Oseweuba Valentine Okoro, Lei Nie, Denise Freitas Siqueira Petri, and Amin Shavandi. "Protein-Based 3D Biofabrication of Biomaterials." Bioengineering 8, no. 4 (April 16, 2021): 48. http://dx.doi.org/10.3390/bioengineering8040048.
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Protein/peptide-based hydrogel biomaterial inks with the ability to incorporate various cells and mimic the extracellular matrix’s function are promising candidates for 3D printing and biomaterials engineering. This is because proteins contain multiple functional groups as reactive sites for enzymatic, chemical modification or physical gelation or cross-linking, which is essential for the filament formation and printing processes in general. The primary mechanism in the protein gelation process is the unfolding of its native structure and its aggregation into a gel network. This network is then stabilized through both noncovalent and covalent cross-link. Diverse proteins and polypeptides can be obtained from humans, animals, or plants or can be synthetically engineered. In this review, we describe the major proteins that have been used for 3D printing, highlight their physicochemical properties in relation to 3D printing and their various tissue engineering application are discussed.
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Valk, Piret. "Kõik värviks: Eestis kasvanud taimedest saadud värvid tekstiilil / All for colours: dyes from plants growing in Estonia on textile." Studia Vernacula 12 (November 5, 2020): 154–97. http://dx.doi.org/10.12697/sv.2020.12.154-197.
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The research carried out during practical work at the Department of Textile Design of the Estonian Academy of Arts focuses on the acquisition of plant and alternative synthetic textile dyes in Estonian weather conditions in the context of textile printing and dyeing. The aim is to study the effect of plant dyes on textiles, by modifying different variables. As the result of testing, the author wanted to select more intensive plants and techniques, which withstand at least a first warm washing, and which could be studied further via a more systematic experimenting and testing.
In order to get multiple results at once, the majority of tests in fact comprise 12 tests, the results of which are presented on one page, including 12 samples of dye and the initial information about plants and procedures. A collection of dye samples comprises 132 test sheets, and presents the practical results of the research. All practical tests are documented with written descriptions compiled as an annex to the test sheets; some tests are also photographed.
It was observed how the dyeing results depend upon different conditions, e.g. the time of collecting plants, the dyeing process, the dyed textile fibres or the acidity of the solution. In order to fix the dye in textile different methods were applied, and the impact of temperature, time, different tanning substances, water and oxygen on the tone of the dye and its intensity was studied. Most samples of dyes have been washed in water at least 50 °C warm and ironed at a minimum of 200 °C after the dyeing process.
The author searched for possible sources of natural dyes in Estonia, taking into account the local tradition of natural dyes, and also exploring the options of introducing species not so well known as dyeing plants. The author cultivated plants for testing and collected species widespread in nature. The author discusses environmental problems connected with collecting and growing the plants, such as moving in nature and the hazard of the expansion of invasive non-native species on the local richness of species.
The choice of plants for this research paper is based on several different principles, which typically occur when searching for a possible source of dye. Based on the courses of thought, the author divides the plants used into eight theme groups with conditional names is as follows: ‘Primeval’, ‘Exotic’, ‘Weeds’, ‘Name shows the destiny’, ‘Compost’, ‘Minor relatives’, ‘Plants with beautiful colour’ and ‘Two-in-one’.
Common bright colours, which tolerated washing in warm water but needed technological improvement for increased light-resistance could be mentioned, e.g. the Dyer’s woad giving the blue dye, the Northern bedstraw giving red tones, Safflower that gives pink and yellow tones. Many plants gave warm brown tones. Among technologies, the most promising proved to be Joy Boutrup’s technique for reserve printing, during which the sodium alginate printed on the cloth is transferred into unsolvable form.
Biological tanning substances, renewable energy like solar power, and the use of a high temperature by extending the low dyeing time and bacterial fermentation dyeing might be some further steps in the development of sustainable dyeing processes. Finding low-cost production dyeing plants among weeds, the restricted use of non-native species, and of plant residue of food industry and other sectors would be a valuable and sustainable source of dye.
Key words: dyeing with plants, natural dyes, dye plants, textile printing, printing techniques, tannins
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Valk, Piret. "Kõik värviks: Eestis kasvanud taimedest saadud värvid tekstiilil / All for colours: dyes from plants growing in Estonia on textile." Studia Vernacula 12 (November 5, 2020): 154–97. http://dx.doi.org/10.12697/sv.2020.12.154-197.
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The research carried out during practical work at the Department of Textile Design of the Estonian Academy of Arts focuses on the acquisition of plant and alternative synthetic textile dyes in Estonian weather conditions in the context of textile printing and dyeing. The aim is to study the effect of plant dyes on textiles, by modifying different variables. As the result of testing, the author wanted to select more intensive plants and techniques, which withstand at least a first warm washing, and which could be studied further via a more systematic experimenting and testing.
In order to get multiple results at once, the majority of tests in fact comprise 12 tests, the results of which are presented on one page, including 12 samples of dye and the initial information about plants and procedures. A collection of dye samples comprises 132 test sheets, and presents the practical results of the research. All practical tests are documented with written descriptions compiled as an annex to the test sheets; some tests are also photographed.
It was observed how the dyeing results depend upon different conditions, e.g. the time of collecting plants, the dyeing process, the dyed textile fibres or the acidity of the solution. In order to fix the dye in textile different methods were applied, and the impact of temperature, time, different tanning substances, water and oxygen on the tone of the dye and its intensity was studied. Most samples of dyes have been washed in water at least 50 °C warm and ironed at a minimum of 200 °C after the dyeing process.
The author searched for possible sources of natural dyes in Estonia, taking into account the local tradition of natural dyes, and also exploring the options of introducing species not so well known as dyeing plants. The author cultivated plants for testing and collected species widespread in nature. The author discusses environmental problems connected with collecting and growing the plants, such as moving in nature and the hazard of the expansion of invasive non-native species on the local richness of species.
The choice of plants for this research paper is based on several different principles, which typically occur when searching for a possible source of dye. Based on the courses of thought, the author divides the plants used into eight theme groups with conditional names is as follows: ‘Primeval’, ‘Exotic’, ‘Weeds’, ‘Name shows the destiny’, ‘Compost’, ‘Minor relatives’, ‘Plants with beautiful colour’ and ‘Two-in-one’.
Common bright colours, which tolerated washing in warm water but needed technological improvement for increased light-resistance could be mentioned, e.g. the Dyer’s woad giving the blue dye, the Northern bedstraw giving red tones, Safflower that gives pink and yellow tones. Many plants gave warm brown tones. Among technologies, the most promising proved to be Joy Boutrup’s technique for reserve printing, during which the sodium alginate printed on the cloth is transferred into unsolvable form.
Biological tanning substances, renewable energy like solar power, and the use of a high temperature by extending the low dyeing time and bacterial fermentation dyeing might be some further steps in the development of sustainable dyeing processes. Finding low-cost production dyeing plants among weeds, the restricted use of non-native species, and of plant residue of food industry and other sectors would be a valuable and sustainable source of dye.
Key words: dyeing with plants, natural dyes, dye plants, textile printing, printing techniques, tannins
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Dr.Krishnakumari. "Biodegradation of Textile Effluent using Plants and Algae." International Journal of Scientific Research and Management 10, no. 06 (June 12, 2022): 199–202. http://dx.doi.org/10.18535/ijsrm/v10i6.b1.
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Increasing globalization causes different environmental pollution. Out of pollution caused by various industries such as textile, dyeing and printing, paper, pulp, plastics, food, cosmetics and pharmaceuticals. Textile effluent causes one of the major environmental problems. The effluent from textile industries poses a threat to the environment, due to the presence of various pollutants. Different types of dyes used in the textile industry usually have a synthetic origin and complex aromatic molecular structures which make them more stable and more difficult to degrade. The complex textile effluent can be biodegraded by algae (bioremediation) and various plants (phyto remediation) reduce the complex pollutants into detoxified smaller compounds.
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Strižić Jakovljević, Maja, Sanja Mahović Poljaček, Sonja Jamnicki Hanzer, Davor Donevski, and Tamara Tomašegović. "Towards Expanding the Use of Paper Made from Recycled and Non-Woody Plants: Enhancing the Print Quality through the Application of Nano-Modified Offset Inks." Sustainability 16, no. 11 (June 4, 2024): 4785. http://dx.doi.org/10.3390/su16114785.
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This study aims to investigate the feasibility of using paper made from eco-friendly recycled and non-woody plants in graphic technology, particularly in offset printing. Instead of changing the composition or modifying the surface properties of the paper, the focus was on enhancing the print quality by modifying the printing ink. By modifying the printing inks, the quality of the prints on recycled and non-woody paper can be optimized, which in turn reduces the need for paper made from primary fibers. This approach can expand the use of alternative materials in graphic technology and design. The objective was to optimize the print quality on these sustainable materials. Five types of uncoated paper were used, with high-quality uncoated offset paper based on virgin fibers serving as a reference. Laboratory tests of the basic and surface properties were carried out to measure the paper quality parameters that are important for offset printing. The influence of the paper composition on its optical and colorimetric properties was also investigated. The interaction between the selected papers and offset inks was examined through measurements of adhesion parameters and ink transfer, i.e., the paper’s ability to accept the ink. To enhance the applicability of the investigated papers as printing substrates in the graphic industry, SiO2 and TiO2 nanoparticles were added to the offset inks. The influence of the paper composition on the colorimetric properties of the prints was also investigated. The print uniformity, as an important quality characteristic, was determined by measuring the mottling index. The research findings indicate that incorporating SiO2 and TiO2 nanoparticles into offset inks can enhance the interaction between the paper and ink, leading to improved print quality. This study provides new perspectives on the possibilities of using recycled and non-woody plant paper in offset printing without significantly compromising the quality of the print.
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Kováčová, Mária, Jana Kozakovičová, Michal Procházka, Ivica Janigová, Marek Vysopal, Ivona Černičková, Jozef Krajčovič, and Zdenko Špitalský. "Novel Hybrid PETG Composites for 3D Printing." Applied Sciences 10, no. 9 (April 28, 2020): 3062. http://dx.doi.org/10.3390/app10093062.
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This paper is focused on the preparation of novel hybrid polymer composite materials for 3D filaments. As the reinforcing filler, expanded graphite, carbon fibers, and combinations thereof were used in various ratios up to 10%. The mechanical and thermal properties of virgin and recycled polyethylene phthalate glycol-modified (PETG) composite materials were determined. Almost all prepared composite materials were suitable for 3D printing and they have enhanced mechanical properties compared to the neat PETG matrices. Addition of the fillers to both polymer matrices has an only slight effect on the thermal stability, but the addition of carbon fibers significantly reduced the thermal expansion coefficient. The composites from cheaper recycled PETG have comparable properties to virgin PETG composites, which is of economic and ecological importance. New and cheaper materials can help expand 3D printing to manufacturing plants and the use of 3D printers for special applications.
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Miranda, David Bruce, Ana Lúcia Soares Machado, and Vitor Bremgartner Da Frota. "The use of 3D printing of teaching models of medicinal plants as learning tools in teaching botany." Cuadernos de Educación y Desarrollo 15, no. 12 (December 13, 2023): 15891–909. http://dx.doi.org/10.55905/cuadv15n12-043.
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The ways of teaching and learning have advanced over the years. The use of 3D technologies is constantly growing. This technology can be applied in teaching through didactic models. At the same time as these technological and scientific advances occur, many may leave aside traditional knowledge and its respective importance, especially in the school environment. This work aims to show the 3D printing of teaching models of the main parts of Amazonian medicinal plants to be used as learning tools in teaching botany. Through bibliographical and field research, three well-known plants widely used medicinally in the Amazon region were chosen: Andiroba, Buriti, and Tucumã. Using 3D modeling programs, seeds and fruits, the materials most used in traditional medicine for these plants, were printed. The results focused on printing models depicting the anatomical structure of the species so that their medicinal importance could be highlighted through the structural visualization of their active principles so that their applications could be understood. The conclusion shows that didactic models can awaken interest in learning by enabling a visual and tactile experience of botanical structures that may not be part of students' lives, making it possible to rescue traditional knowledge with its medicinal application, for example, combined with scientific knowledge, regarding the morphology of the structures presented.
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Ramachandraiah, Karna. "Potential Development of Sustainable 3D-Printed Meat Analogues: A Review." Sustainability 13, no. 2 (January 18, 2021): 938. http://dx.doi.org/10.3390/su13020938.
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To mitigate the threat of climate change driven by livestock meat production, a multifaceted approach that incorporates dietary changes, innovative product development, advances in technologies, and reductions in food wastes/losses is proposed. The emerging technology of 3D printing (3DP) has been recognized for its unprecedented capacity to fabricate food products with intricate structures and reduced material cost and energy. For sustainable 3DP of meat substitutes, the possible materials discussed are derived from in vitro cell culture, meat byproducts/waste, insects, and plants. These material-based approaches are analyzed from their potential environmental effects, technological viability, and consumer acceptance standpoints. Although skeletal muscles and skin are bioprinted for medical applications, they could be utilized as meat without the additional printing of vascular networks. The impediments to bioprinting of meat are lack of food-safe substrates/materials, cost-effectiveness, and scalability. The sustainability of bioprinting could be enhanced by the utilization of generic/universal components or scaffolds and optimization of cell sourcing and fabrication logistics. Despite the availability of several plants and their byproducts and some start-up ventures attempting to fabricate food products, 3D printing of meat analogues remains a challenge. From various insects, powders, proteins (soluble/insoluble), lipids, and fibers are produced, which—in different combinations and at optimal concentrations—can potentially result in superior meat substitutes. Valuable materials derived from meat byproducts/wastes using low energy methods could reduce waste production and offset some greenhouse gas (GHG) emissions. Apart from printer innovations (speed, precision, and productivity), rational structure of supply chain and optimization of material flow and logistic costs can improve the sustainability of 3D printing. Irrespective of the materials used, perception-related challenges exist for 3D-printed food products. Consumer acceptance could be a significant challenge that could hinder the success of 3D-printed meat analogs.
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Samarin, Alexander Y. "The Idea of D.D. Shamray’s Doctoral Dissertation “Free Printing Houses of the Eighteenth Century (1783—1796)”." Bibliotekovedenie [Library and Information Science (Russia)] 68, no. 5 (November 27, 2019): 535–42. http://dx.doi.org/10.25281/0869-608x-2019-68-5-535-542.
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The article considers the unpublished heritage of D.D Shamray (1886—1971), book historian, bibliologist, library scientist and bibliographer, employee of the Imperial Public Library (State Public Library named after M.E. Saltykov-Shchedrin, now — The National Library of Russia, NLR), connected with his idea of doctoral thesis on the period of free printing in Russia (1783—1796) in the beginning of 1950s. Archival materials on this topic are stored in the Department of manuscripts of the Russian State Library (RSL) and the Department of archival documents of the NLR. The plan of dissertation “Free Printing Houses of the Eighteenth Century (1783—1796)” and the unpublished work “The New Printing House of the Academy of Sciences, 1758—1783” reveal the idea of D.D. Shamray. These materials show that the scientist intended to pay special attention to the study of social, cultural, political prerequisites for the emergence of “free printing”, including the repertoire of manuscript books of the 18th century, and to highlight the practice of private orders in state printing plants as a prehistory of free printing. D.D. Shamray planned to create “Book chronicle of free printing houses”, understanding it as the compilation of complete bibliography of published products prepared in private printing houses during the period of “free printing”. D.D. Shamray widely used archival sources, mainly the documents of the Archive of the Academy of Sciences (now — St. Petersburg Branch of the Archive of the Russian Academy of Sciences), citing some of them in their entirety. However, the scientist did not reach the level of wide generalization and as a result, most of his texts on this topic remained unpublished. The study of materials on the unrealized plan of D.D. Shamray testifies to the important historiographical significance of the unpublished works for the complete understanding of the history of the scientific process in the field of domestic book studies and the history of book.
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Jiang, Qin, Zhiping Chai, Zisheng Zong, Zhitong Hu, Shuo Zhang, and Zhigang Wu. "Micro/Nano Soft Film Sensors for Intelligent Plant Systems: Materials, Fabrications, and Applications." Chemosensors 11, no. 3 (March 19, 2023): 197. http://dx.doi.org/10.3390/chemosensors11030197.
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Being abundant as natural intelligence, plants have attracted huge attention from researchers. Soft film sensors present a novel and promising approach to connect plants with artificial devices, helping us to investigate plants’ intelligence further. Here, recent developments for micro/nano soft film sensors that can be used for establishing intelligent plant systems are summarized, including essential materials, fabrications, and application scenarios. Conductive metals, nanomaterials, and polymers are discussed as basic materials for active layers and substrates of soft film sensors. The corresponding fabrication techniques, such as laser machining, printing, coating, and vapor deposition, have also been surveyed and discussed. Moreover, by combining soft film sensors with plants, applications for intelligent plant systems are also investigated, including plant physiology detection and plant-hybrid systems. Finally, the existing challenges and future opportunities are prospected.
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Sabbatini, Beatrice, Alessandra Cambriani, Marco Cespi, Giovanni Filippo Palmieri, Diego Romano Perinelli, and Giulia Bonacucina. "An Overview of Natural Polymers as Reinforcing Agents for 3D Printing." ChemEngineering 5, no. 4 (November 8, 2021): 78. http://dx.doi.org/10.3390/chemengineering5040078.
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Three-dimensional (3D) printing, or additive manufacturing, is a group of innovative technologies that are increasingly employed for the production of 3D objects in different fields, including pharmaceutics, engineering, agri-food and medicines. The most processed materials by 3D printing techniques (e.g., fused deposition modelling, FDM; selective laser sintering, SLS; stereolithography, SLA) are polymeric materials since they offer chemical resistance, are low cost and have easy processability. However, one main drawback of using these materials alone (e.g., polylactic acid, PLA) in the manufacturing process is related to the poor mechanical and tensile properties of the final product. To overcome these limitations, fillers can be added to the polymeric matrix during the manufacturing to act as reinforcing agents. These include inorganic or organic materials such as glass, carbon fibers, silicon, ceramic or metals. One emerging approach is the employment of natural polymers (polysaccharides and proteins) as reinforcing agents, which are extracted from plants or obtained from biomasses or agricultural/industrial wastes. The advantages of using these natural materials as fillers for 3D printing are related to their availability together with the possibility of producing printed specimens with a smaller environmental impact and higher biodegradability. Therefore, they represent a “green option” for 3D printing processing, and many studies have been published in the last year to evaluate their ability to improve the mechanical properties of 3D printed objects. The present review provides an overview of the recent literature regarding natural polymers as reinforcing agents for 3D printing.
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Chen, Sen, Muzhi Jiang, Bo Wang, Xiyu Zhu, Xiaohui Shan, and Jing Liu. "In Situ Fabricated Liquid Metal Capacitors for Plant Sensing." Biosensors 13, no. 6 (June 1, 2023): 603. http://dx.doi.org/10.3390/bios13060603.
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Capacitive sensors are essential to promoting modernization and intelligence in agriculture. With the continuous advancement of this sensor technology, the demand for materials with high conductivity and flexibility is rapidly increasing. Herein, we introduce liquid metal as a solution for the in-site fabrication of high-performance capacitive sensors for plant sensing. As a comparison, three pathways have been proposed for the preparation of flexible capacitors inside plants, as well as on their surfaces. Specifically, concealed capacitors can be constructed by directly injecting liquid metal into the plant cavity. Printable capacitors are prepared via printing Cu-doped liquid metal with better adhesion on plant surfaces. A composite liquid metal-based capacitive sensor is achieved by printing liquid metal on the plant surface and injecting it into the interior of the plant. While each method has limitations, the composite liquid metal-based capacitive sensor provides an optimal trade-off between signal capture capability and operability. As a result, this composite capacitor is chosen as a sensor for monitoring water changes within plants and demonstrates the desired sensing performance, making it a promising technology for monitoring plant physiology.
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LIU, LIN, XUJIE LU, and JIHUA CHEN. "DYNAMIC MEMBRANE TECHNOLOGY FOR PRINTING WASTEWATER REUSE." International Journal of Modern Physics B 23, no. 06n07 (March 20, 2009): 1943–48. http://dx.doi.org/10.1142/s0217979209061871.
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As environmental regulations become rigid and the cost of freshwater increases, wastewater is considered as a major resource in China. The paper presented a study on the implementation of the advanced treatment process using dynamic membrane (DM) in reusing of printing wastewater. The DM was well formed by circulating 1.5g/L of PAC in 20 minutes, the trans-membrane pressure of 200 kPa and the cross-flow velocity of 0.75m/s. The printing effluents were treated in effluent treatment plants comprising a physicochemical option followed by biological process. The treated effluent contained chemical oxygen demand (COD), color and turbidity in the range of 45-60 mg/L, 0.030-0.045 (absorbance at 420 nm) and 3-5 NTU. The results showed that the COD, color and turbidity removal efficiencies of the DM permeate were 84%, 85% and 80%, respectively. The wastewater treated by DM was reused as process water and the final concentrated retentate could be discharged directly into sewage treatment works with no additional treatments. Cleaning and regeneration of DM were very convenient if necessary. The proper process was that the polluted DM was cleaned with tap water at high cross-flow velocity. When irreversible pollutants accumulate, it would be rinsed with chemicals tested and the membrane flux would be restored up to 95%. The result showed that DM was considered as a promising method for purification aimed at reuse of printing wastewater, resulting in direct environmental and economic benefits.
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Guo, Jinyang, Cong Luo, Christian Wittkowski, Ingo Fehr, Zhikai Chong, Magdalena Kitzberger, Ayah Alassali, et al. "Screening the Impact of Surfactants and Reaction Conditions on the De-Inkability of Different Printing Ink Systems for Plastic Packaging." Polymers 15, no. 9 (May 8, 2023): 2220. http://dx.doi.org/10.3390/polym15092220.
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One of the major applications (40% in Europe) of plastic is packaging, which is often printed to display required information and to deliver an attractive aesthetic for marketing purposes. However, printing ink can cause contamination in the mechanical recycling process. To mitigate this issue, the use of surfactants in an alkaline washing process, known as de-inking, has been employed to remove printing ink and improve the quality of recyclates. Despite the existence of this technology, there are currently no data linking the de-inking efficiency with typical printing ink compositions. Additionally, it is necessary to investigate the de-inking process under the process parameters of existing recycling plants, including temperature, NaOH concentration, and retention time. This study aims to evaluate the performance of commonly used printing inks with different compositions under various washing scenarios for plastic recycling in conjunction with different de-inking detergents containing surfactants or mixtures of surfactants. The results indicate that the pigments applied to the ink have no significant effect on the de-inking process, except for carbon black (PBk 7). Nitrocellulose (NC) binder systems exhibit high de-inkability (over 95%) under the condition of 55 °C and 1 wt.% NaOH. However, crosslinked binder systems can impede the de-inking effect, whether used as a binder system or as an overprint varnish (OPV). The de-inking process requires heating to 55 °C with 1 wt.% NaOH to achieve a substantial effect. Based on the findings in this work, breaking the Van der Waals forces, hydrogen bonds, and covalent bonds between the printing ink and plastic film is an essential step to achieve the de-inking effect. Further research is needed to understand the interaction between surfactants and printing inks, enabling the development of de-inkable printing inks and high-performance surfactants that allow for de-inking with less energy consumption. The surfactant and NaOH have a synergistic effect in cleaning the printing ink. NaOH provides a negative surface charge for the adsorption of the cationic head of the surfactant and can hydrolyze the covalent bonds at higher concentrations (>2 wt.%).
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Khuong, Tran Linh, Zhao Gang, Muhammad Farid, Rao Yu, Zhuang Zhi Sun, and Muhammad Rizwan. "Tensile Strength and Flexural Strength Testing of Acrylonitrile Butadiene Styrene (ABS) Materials for Biomimetic Robotic Applications." Journal of Biomimetics, Biomaterials and Biomedical Engineering 20 (June 2014): 11–21. http://dx.doi.org/10.4028/www.scientific.net/jbbbe.20.11.
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Biomimetic robots borrow their structure, senses and behavior from animals, such as humans or insects, and plants. Biomimetic design is design ofa machine, a robot or a system in engineeringdomain thatmimics operational and/orbehavioral model of a biological system in nature. 3D printing technology has another name as rapid prototyping technology. Currently it is being developed fastly and widely and is applied in many fields like the jewelry, footwear, industrial design, architecture, engineering and construction, automotive, aerospace, dental and medical industry, education, geographic information system, civil engineering, guns. 3D printing technology is able to manufacture complicated, sophisticated details that the traditional processing method cannot manufacture. Therefore, 3D printing technology can be seen as an effective tool in biomimetic, which can accurately simulate most of the biological structure. Fused Deposition Modeling (FDM) is a technology of the typical rapid prototyping. The main content of the article is the focusing on tensile strength test of the ABS-Acrylonitrile Butadiene Styrene material after using Fused Deposition Modeling (FDM) technology, concretization after it’s printed by UP2! 3D printer. The article focuses on two basic features which are Tensile Strength and Determination of flexural properties.
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Kaido, Takero, Yasushi Honda, and Kuniaki Kitamura. "Association between Liver Dysfunction and Hyperglycemia in Japanese Male Workers at Printing and Papermaking Plants." Journal of Occupational Health 44, no. 5 (September 2002): 301–6. http://dx.doi.org/10.1539/joh.44.301.
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Deng, Jinglin, Lirong Gao, Wenbin Liu, Fei Yin, Chunci Chen, Tianqi Jia, Yunchen He, Tianao Mao, and Wenqi Wu. "Distributions and transformation of polyhalogenated carbazoles in environmental matrices contaminated by printing and dyeing plants." Environmental Pollution 357 (September 2024): 124451. http://dx.doi.org/10.1016/j.envpol.2024.124451.
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Warman, Taufik, Herdayani Herdayani, Latifah Nur A’in, Della Apriyana, Almayanti Almayanti, Anita Safitri, Siti Pramita, Galang Ramadhan, Khairun Najmi, and Abi Mas Tanjung. "PELATIHAN ECOPRINT SEBAGAI BENTUK PEMANFAATAN BAHAN ALAMI KEPADA IBU-IBU PKK DESA MABUAN." EJOIN : Jurnal Pengabdian Masyarakat 1, no. 9 (September 20, 2023): 1001–7. http://dx.doi.org/10.55681/ejoin.v1i9.1570.
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Ecoprint Training is a non-formal educational program that aims to introduce natural printing techniques using organic materials from the environment. The training is designed to enable participants to develop their artistic skills while appreciating the biodiversity and abundance of natural resources that surround us. Training materials include an in-depth understanding of the types of plants, leaves, and other natural materials that can be used in the ecoprint process. Participants will learn about material preparation techniques, such as natural pigment extraction and fabric preparation. In addition, they will be given practical guidance in applying designs and creating unique motifs through natural printing techniques. During the training, there will be hands-on practice sessions where participants will practice the techniques they learned under the guidance of expert instructors. Participants will also be given the opportunity to experiment with combinations of natural materials and printing methods to create unique and personalized results. The purpose of this training is to enable participants to produce original and aesthetically pleasing ecoprint artworks. In addition, the program also aims to raise awareness of the importance of nature conservation and promote the use of natural materials as an environmentally friendly alternative. Through Ecoprint Training, it is expected that participants will acquire adequate knowledge and skills to continue the practice of natural printing independently. In addition, it is also expected that participants will bring home the spirit to maintain and preserve natural beauty and apply ecoprint principles in their daily lives.
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Amador, Guillermo J., Yasukuni Yamada, Matthew McCurley, and David L. Hu. "Splash-cup plants accelerate raindrops to disperse seeds." Journal of The Royal Society Interface 10, no. 79 (February 6, 2013): 20120880. http://dx.doi.org/10.1098/rsif.2012.0880.
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The conical flowers of splash-cup plants Chrysosplenium and Mazus catch raindrops opportunistically, exploiting the subsequent splash to disperse their seeds. In this combined experimental and theoretical study, we elucidate their mechanism for maximizing dispersal distance. We fabricate conical plant mimics using three-dimensional printing, and use high-speed video to visualize splash profiles and seed travel distance. Drop impacts that strike the cup off-centre achieve the largest dispersal distances of up to 1 m. Such distances are achieved because splash speeds are three to five times faster than incoming drop speeds, and so faster than the traditionally studied splashes occurring upon horizontal surfaces. This anomalous splash speed is because of the superposition of two components of momentum, one associated with a component of the drop's motion parallel to the splash-cup surface, and the other associated with film spreading induced by impact with the splash-cup. Our model incorporating these effects predicts the observed dispersal distance within 6–18% error. According to our experiments, the optimal cone angle for the splash-cup is 40°, a value consistent with the average of five species of splash-cup plants. This optimal angle arises from the competing effects of velocity amplification and projectile launching angle.
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Gao, Ai Hua, Shui Jiao Yang, Shang Bin Hu, Xiao Qing He, and Zhi Guo Lu. "Discharge Plasma for the Treatment of Industrial Wastewater." Applied Mechanics and Materials 71-78 (July 2011): 3075–78. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.3075.
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The treatment of industrial wastewaters collected from petrochemical works, gypsum plant, and printing and dyeing mill, was investigated at atmospheric pressure in air discharge plasma. The degradation effects of organic contaminants in water were compared for the printing and dyeing wastewater under different discharging conditions and for the wastewater from the other two plants under the same discharging conditions. The influences of several factors on chemical oxygen demand (COD) remove rate were studied experimentally. The results showed that the treatment effects for the same industrial wastewater differed significant under different discharge conditions. There may be a suitable discharge plasma treatment to specific industrial wastewater. Due to the removal rates of COD of industrial wastewaters with discharge plasma isn’t very high, therefore the discharge plasma water treating needs to combine conventional water treating methods or addition other catalyst to effectively remove organic pollutants in wastewater and obtain the expected treatment effect.
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Sujana, I. Putu. "The application of biochar to screen printing liquid waste polluted land, its effect in soil, mustard greens to heavy metals (Fe, Cr)." Research Journal of Textile and Apparel 22, no. 3 (September 10, 2018): 224–34. http://dx.doi.org/10.1108/rjta-02-2018-0006.
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Purpose The purpose of this paper is to analyse the screen printing liquid waste polluted soil physical, chemical and biological characteristics, with the unpolluted soil, and to analyse the application of some types of biochar towards the growth of mustard greens plants and the concentration of heavy metals Fe, Cr on the screen printing liquid waste polluted soil. Design/methodology/approach This research was conducted in a green house by using fully randomized design, split plot design pattern, with three replications. The main plot is the type of biochar, and the subplot is the dosage of biochar. The biochar consists of four types (B1 = chicken manure biochar, B2 = coconut shell biochar, B3 = rice hulls biochar and B4 = mahogany woods biochar). The dosage of biochar consists of four levels (D0 = control, D1 = 5 ton/hectare, D2 = 10 ton/hectare and D3 = 15 ton/hectare). The tested variable is being analysed by using analysis of variance (ANOVA). Findings The screen printing liquid waste polluted soil physical, chemical and biological characteristics analysis shows that the soil pH is neutral, a low C organic, a low N total, a high P, CEC and base saturation, while the texture is soft. The analysis results of rice hulls biochar physical, chemical and biological characteristics are quantitatively better in comparison with chicken manure biochar, coconut shell biochar and mahogany biochar. The quantitative application of rice hulls biochar15 ton/hectare dosage can increase the growth of mustard greens, and also, it recovers the soil characteristics by heavy metals total rate of 14.11 ppm Fe and 0.95 ppm Cr from the plant, while 209.05 ppm Fe and 4.12 ppm Cr were found in the soil. Originality/value This is one of few studies the biochar to screen printing liquid waste polluted lands. Currently, numerous kinds of chemical substances have been applied in a form of fertilizer and pesticide into the soil. Other activities like transporting the crop residues, and the contamination of irrigation water that is caused by screen printing liquid waste, have also affected the soil. It becomes degraded where the soil becomes compact and losses its nutrients, and it is containing heavy metals material that is toxic for plants. Biochar is applied into the polluted soil to improve the soil, which is hard to decompose and is long-lasting in the soil. These days, both the raw or ready food products are exposed to the heavy metals with a large and concerning number, especially in big cities which most of the soil is polluted.
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Sowińska, Ewa. "Jan Leszczyński "I then had the hobby of having a printing house"." Wrocławski Rocznik Historii Mówionej 7 (December 29, 2017): 211–53. http://dx.doi.org/10.26774/wrhm.173.
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Jan Leszczyński’s account is an autobiographical story that began with the outbreak of World War II. Then, the author colorfully describes the reality of the post-war years in the so-called Recovered Territories, education, his first job and then studies at the School of Economics. From his perspective, he brings the functioning of the PRL economy closer through the stories of working in large production plants in Lower Silesia, including in Diorz in Dzierżoniów, where Mr. Jan worked. The report was registered by the author of the study as part of the documentation and research project of the "Remembrance and Future" Center, entitled "Factory Wrocław".
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Hardiansyah, Gusti, Ivan Sujana, Ratih Rahmahwati, and M. Taufiqurrahman. "RANCANG BANGUN MESIN PELET BIOMASSA TERINTEGRASI DENGAN PENDEKATAN DIAGRAM FAST." ULIN: Jurnal Hutan Tropis 4, no. 1 (March 30, 2020): 42. http://dx.doi.org/10.32522/ujht.v4i1.3603.
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The purpose of this research is to support and encourage the development of sustainable palm oil, reduce the environmental impact caused by the rehabilitation of oil palm plants that are not well managed by the managers of oil palm plantations and produce technological.Therefore, in-depth analysis is needed related to the innovation of biomass pellet printing machine (biopellet) technology using the diagram function Function Analysis and System Technique (FAST). Analysis is done by determining the critical functions that must be present in an integrated biomass pellet machine (biopellet) on the performance of a machine that can produce biomass pellets (biopellet) and is moveable. The results of the study using the FAST approach produce engine design that has the main function in a biopellet machine that is moveable by considering the critical functions such as the cutting function of waste palm stalks, enumeration functions, raw material mixing functions, pellet printing functions and skeleton holder functions that can integrate all functions engine by considering the moveable nature of the engine. It is hoped that this research can be developed even better starting from the quality of the cutting edge of the blade on the machine and the printing quality of the biopellet.
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Tan, M. A., C. K. Yeoh, P. L. Teh, N. A. Rahim, C. C. Song, and N. S. S. Mansor. "Effect of infill density and raster angle on the mechanical properties of PLA." Journal of Physics: Conference Series 2080, no. 1 (November 1, 2021): 012002. http://dx.doi.org/10.1088/1742-6596/2080/1/012002.
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Abstract Polylactic acid (PLA) is derived from natural aliphatic polyester resources for instance sugarcane or starch based plants. PLA also known as a biocompatible and biodegradable thermoplastic and found widely in multiple applications like electronic and electrical devices, biomedical, food packaging and the engineering field. PLA have attracted attention in production potential due to its superior attributes like ease of processing, high strength and high modulus. Infill density, raster angle and infill pattern can influence the mechanical characteristics of materials like PLA, acrylonitrile-butadiene-styrene (ABS), polyetheretherketone (PEEK). In this paper, the relationship between infill density and raster angle was studied to investigate the mechanical performances of PLA by using 3D printers. 3D printing is used to fabricate more complex 3D design objects. The tensile test was involved to evaluate the properties of pure PLA. For pure PLA, 0° raster angles with 100% infill density show the highest tensile strength and Young’s modulus which are 28.926MPa and 1262.7MPa respectively. However, a decreasing trend of break elongation reveals in PLA as infill density increases for both 0° and 90° raster angle. Optimization of printing parameters become crucial to provide high quality materials for 3D printing in order for education, packaging, engineering and biomedical applications.
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Klančnik, Maja. "Printing with Natural Dye Extracted from Impatiens glandulifera Royle." Coatings 11, no. 4 (April 13, 2021): 445. http://dx.doi.org/10.3390/coatings11040445.
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Invasive alien plants that damagingly overgrow native ecosystems can be beneficially used to produce natural dyes. Natural dyes are healthier and more environmentally friendly than synthetic dyes, so their use on textiles and other products that come into contact with humans is desirable. In this study, the possibility of using a natural dye extracted from the purple petals of the invasive plant Impatiens glandulifera Royle (Himalayan balsam) for screen printing on various substrates; woven fabrics and different papers made from virgin fibers, recycled fibers, and from fibers of Japanese knotweed, was investigated. The prints were evaluated by color measurements and fastness properties. With the violet dye extract, purple-brown prints were obtained on papers made from Japanese knotweed, and more brown prints on other substrates. They had excellent rub fastness but faded significantly when exposed to light. The wash fastness of the prints on cotton fabrics was moderate and poor on polyester fabrics, but the prints had good resistance to wet ironing. The addition of acid to the printing paste resulted in a lighter violet color, the addition of alkali caused a drastic color change to green, both additives increased the light fastness of the prints but reduced the fastness on fabrics to wet treatments.
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Farahani, Farah, Masoud Sheidai, and Fahimeh Koohdar. "Genetic finger printing of cotton cultivars by ISSR molecular markers." Genetika 50, no. 2 (2018): 627–34. http://dx.doi.org/10.2298/gensr1802627f.
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Gossypium hirsutum is one of the main tetraploid cotton species that is cultivated throughout the world. Due to continuous selection of cotton cultivars for specific agronomic traits, the genetic variability within the cultivars decrease that lead to genetic erosion. To tackle the problem of reduced genetic variability, we should track all available genetic diversity within cotton germplasm and use them for inter-specific and intra-specific hybridization and produce new elite cotton cultivars. Therefore, the present study used ISSR molecular markers to illustrate genetic variability in 13 tetraploid cotton genotypes (Gossypium hirsutum L.) and to categorize these genotypes based on genetic affinity. 65 cotton plants were studied. The results identified private bands in the studied genotypes, while Network and STRUCTURE analyses of molecular data obtained grouped the genotypes with genetic affinity together. Some of the genotypes differed in their genetic content from the others; therefore, studying the genetic and agronomic variability within available cultivars is very important and produced data to broaden the gene pool for planning further hybridization in cotton.
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Fraas, Art, and Alex Egorenkov. "Retrospective Analyses Are Hard: A Cautionary Tale from EPA’s Air Toxics Regulations." Journal of Benefit-Cost Analysis 9, no. 2 (August 17, 2017): 247–84. http://dx.doi.org/10.1017/bca.2017.8.
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Under the 1990 Clean Air Act Amendments, the U.S. Environmental Protection Agency (EPA) was required to establish standards limiting air toxics emissions from industrial plants. This paper examines the effects of five of the largest-cost rules issued by EPA in the initial round of air toxics rulemaking over the 1995 to 2000 period. Our estimates suggest that plants in the printing and publishing and pulp and paper industries realized important reductions in their air toxics emissions in the period between publication of the final rule and the effective date for compliance with the rule – although the reduction in air toxics emissions by pulp and paper mills fell short of EPA’s ex ante projections. However, our estimates also suggest that plants in three other industries – petroleum refining, pharmaceuticals, and wood furniture – achieved little or no additional reduction in air toxics emissions over the compliance period in response to EPA’s rules. Finally, the paper explores steps that EPA should take in setting up future retrospective analyses.
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Korinth, Gintautas, Thomas Goen, Holger M. Koch, Thomas Merz, and Wolfgang Uter. "Visible and subclinical skin changes in male and female dispatch department workers of newspaper printing plants." Skin Research and Technology 11, no. 2 (May 2005): 132–39. http://dx.doi.org/10.1111/j.1600-0846.2005.00104.x.
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Dzogbwu, Thywill, Sampson Afrifa Jnr, Nathaniel Amoah, Samuel Koranteng Fianko, Adam Imdaadulah, and Deon De Beer. "Supply chain disruptions and resilience in manufacturing industry during covid-19: Additive manufacturing intervention in perspective." Journal of Industrial Engineering and Management 16, no. 3 (October 25, 2023): 509. http://dx.doi.org/10.3926/jiem.4526.
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Purpose: This paper examined supply chain disruptions in the manufacturing industry in South Africa and how additive manufacturing technology was used to help deal with disruptions encountered.Design/methodology/approach: The study adopted a qualitative research approach in order to meet the objectives of the study. A total of ten (10) managers of conventional manufacturing firms and ten (10) managers of 3D printing firms in Free State, South Africa participated in the study through the use of a purposive sampling technique. Interview guides were used in the collection of data. Data transcriptions and thematic analysis were used to analyze data gathered from the interviews.Findings: The results of the study showed that 3D printing contributed positively in dealing with manufacturing disruptions that were encountered by manufacturing firms in Free State, South Africa through the production of components and spare parts that were broken down in manufacturing machinery/plants. From the study, the researchers recommend that 3D printing technology should be adopted by manufacturing firms because of its practicality in providing manufacturing support and production continuity even in supply chain disruptive experiences caused by pandemics such as Covid-19. Originality/value: The study proves that due to the versatility of the 3D printing technology it could be used to minimize the effect of supply chain disruption during cries such as the Covid-19 pandemic. One of the unique contributions of the current study is the realization that additive manufacturing was not of much relevance to the generic supply chain challenges encountered in supply chain activiteis, but rather very relevant in helping to prevent disruptions of the manufacturing process by improvising spare parts at the peak of the Covid-19 pandemic.
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Almada-Lobo, Francisco. "The Industry 4.0 revolution and the future of Manufacturing Execution Systems (MES)." Journal of Innovation Management 3, no. 4 (January 24, 2016): 16–21. http://dx.doi.org/10.24840/2183-0606_003.004_0003.
Full textAbstract:
Industry 4.0 dictates the end of traditional centralized applications for production control. Its vision of ecosystems of smart factories with intelligent and autonomous shop-floor entities is inherently decentralized. Responding to customer demands for tailored products, these plants fueled by technology enablers such as 3D printing, Internet of Things, Cloud computing, Mobile Devices and Big Data, among others create a totally new environment. The manufacturing systems of the future, including manufacturing execution systems (MES) will have to be built to support this paradigm shift.
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Ertane, Ertan G., Annett Dorner-Reisel, Ozlem Baran, Thomas Welzel, Viola Matner, and Stefan Svoboda. "Processing and Wear Behaviour of 3D Printed PLA Reinforced with Biogenic Carbon." Advances in Tribology 2018 (August 1, 2018): 1–11. http://dx.doi.org/10.1155/2018/1763182.
Full textAbstract:
For the first time, biocarbon reinforced polylactide (PLA) filaments were available for the 3D printing. Biocarbon is the carbon obtained from trees, plants, and soils to naturally absorb and store carbon dioxide from the atmosphere. One of the most important features is renewability. Because of this, it has been decided to reinforce PLA with biocarbon to obtain 100% recyclable material. Although PLA has been used in 3D printing for a long time, more applications like housings or structural interior of automobiles or other vehicles can be realised, if the mechanical and tribological properties are improved. Because the new PLA/biocarbon reinforced composites are degradable, they can be used as soil improvement after end of life as a structural material. The filaments were produced by compounding the biocarbon with polylactide granulate. Biocarbon was produced by pyrolysis of wheat stems at 800°C. The biomass were collected from different regions in Germany, Europe. As shown by Raman spectroscopy, the in-plane crystallite size of pyrolysed wheat stems from different regions is almost similar and amounts to 2.35 ±0.02 nm. Biocarbon particles were successfully integrated into the polylactide. Filaments of 1.75 mm diameter were produced for 3D (3-dimensional) printing. Filaments with 5 vol.-%, 15 vol.-%, and 30 vol.-% biocarbon were extruded. The fused deposition modelling (FDM) printing process was slightly hindered at higher biocarbon loading. Based on optical and scanning electron microscopy, a very homogeneous particle distribution can be observed. Single carbon particles stick out of the filament surface, which may be a reason for enhanced nozzle wear during 3D printing. Friction is more stable for 30 vol.-% reinforced PLA in comparison to unreinforced PLA and composites with lower particle fraction. This effect could be caused by some topographical effects due to void generation at the surface of PLA with 30 vol.-% biocarbon. In general, the tribological resistance increases with higher volume fraction of biocarbon.
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Nissi Kumar, N., P. Sai Tharun, K. Prakash, L. M. N. Mythresh, and Naga Jyoshna. "Robot ARM with Gesture Control." Journal of Physics: Conference Series 2325, no. 1 (August 1, 2022): 012012. http://dx.doi.org/10.1088/1742-6596/2325/1/012012.
Full textAbstract:
Abstract The efficiency of work flow is constrained in human-inaccessible regions, such as high radiation exposure un power plants and defenses. The notion for a low-cost microcontroller-based robotic arm is presented in this research. The gesture is controlled by an accelerometer and a microprocessor in this robotic arm. In the field, where there are higher radiation concerns, this arm will assist in activities such as gripping things and wirelessly remote-controlled working of gadgets. The use of 3-D printing of an arm for prosthetic replacements can enhance this process.
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Block, C. C., J. H. Hill, and D. C. McGee. "Seed Transmission of Pantoea stewartii in Field and Sweet Corn." Plant Disease 82, no. 7 (July 1998): 775–80. http://dx.doi.org/10.1094/pdis.1998.82.7.775.
Full textAbstract:
Seed transmission of Pantoea stewartii was evaluated by assays of more than 76,000 plants in greenhouse and field grow-out trials. Fourteen P. stewartii-infected seed lots were obtained from two dent corn inbreds and two sweet corn cultivars that were inoculated with either a rifampicin and nalidixic acid-resistant strain (rif-9A) or a wild-type strain (SS104) of P. stewartii. Four additional seed lots were collected from naturally infected inbreds. Percentages of infected kernels ranged from 0.8 to 72%, as determined by agar plating or by individual-kernel enzyme-linked immunosorbent assay (ELISA). Plants grown from this seed were assayed by a stem-printing technique that consisted of cutting and pressing a cross-section of each stem onto agar media. Prints were examined for development of P. stewartii colonies after 24 and 48 h. The transmission rate from seed produced on the inoculated plants was 0.066% (28 of 42,206 plants), based on all seedlings assayed. Transmission was estimated to be 0.14% from infected kernels. The transmission rate from seed produced on naturally infected plants was 0.0029% (1 of 34,924 plants), based on all seedlings, and 0.022% from infected kernels. Seed transmission occurred significantly less often (P = 0.034) from seed produced on naturally infected plants than from seed produced on inoculated plants, probably due to greater kernel damage caused by ear shank inoculation. The rarity of seed transmission of P. stewartii from heavily infected seed lots that would ordinarily be rejected due to poor germination suggests that the likelihood of seed transmission from good quality commercial seed corn is virtually nonexistent.