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Letteratura scientifica selezionata sul tema "TASAR SILK"

Autore: Grafiati

Pubblicato: 11 settembre 2023

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Articoli di riviste sul tema "TASAR SILK"

Mishra, Priya. "A Study on the Status and Prospects of Tasar Sericulture Industry and its Impact on Tribal Lives in Jharkhand". International Journal for Research in Applied Science and Engineering Technology 9, n. 9 (30 settembre 2021): 1773–77. http://dx.doi.org/10.22214/ijraset.2021.38250.

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Abstract: This paper reviews the status and prospects of the “Tasar Silk Industry” in the state of Jharkhand. Tasar Sericulture is practiced in the states of Jharkhand, Orissa, West Bengal, Madhya Pradesh, Chhattisgarh, Andhra Pradesh, Uttar Pradesh, Maharashtra, Telangana and Bihar with Jharkhand being the leading producer with 80% of the tasar silk production employing around 1.5 lakh farmers in rearing, reeling and weaving activities, This is an agro-based, cottage industry practiced as “a way of life” by the various tribal inhabitants of this state like Santhals, Hos, Uraons, Kerwars and others. Tasar silk is not only known for its charm, texture and its natural golden color, but it also has a high ethical value. It is known as “Ahimsa Silk” as it does not kill the silkworm by boiling the cocoons while it is still inside it. The fibre is extracted only after the silkworm (Antherea Mylitta and Antherea Proyeli J) has left the cocoons. Tasar sericulture is being promoted widely through premier bodies like The Central Silk Board and its subsidiary i.e Central Tasar Research and Training Institute; Ranchi, which has undertaken research and development and training programs, since its establishment in 1964, thereby improving the silk production as well as empowering the lives of weak and marginalized tribes of Jharkhand. Growing demands from foreign countries, elucidate the promising future of the tasar silk industry in Jharkhand which in turn would uplift the living qualities of the rural people. Heavy investment in this industry now, would bring good returns in future, not just in terms of an improved economy, but also an improved society. This paper highlights the fact that apart from the huge potential to earn foreign exchange for the country, tasar culture has immense ethical values and truly carves for us a path towards sustainable development. Keywords: Tasar, sericulture, Jharkhand, tribal, Ahimsa Silk, Sustainable Development.

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Das, Suman, Ashmita Ghosh, Mrinal Ray, Gangesh B. Singh e Pradip Kumar Baruah. "Eco-friendly Environment of Tripura, India Prove to be a Boon for Tasar Cultivation on Zizyphus mauritiana L." INTERNATIONAL JOURNAL OF PLANT AND ENVIRONMENT 5, n. 01 (1 gennaio 2019): 63–66. http://dx.doi.org/10.18811/ijpen.v5i01.11.

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Indian silk industry is the second largest producer of silk in the world. India has the unique distinction of being the only country producing all the five known commercial silk, namely, Mulberry, Tropical Tasar, Oak Tasar, Eri, and Muga. Among the four varieties of silk produced in 2015-16, Tasar accounts for 9.90%, i.e., 2,818 MT of the total raw silk production of 28,472 MT. In Tripura, the societies are well acquainted with only mulberry silk production. Temperature plays a very vital role in the growth of Tasar (Anthereae mylitta) silkworm also. Anthereae mylitta is a species of moth in the family Saturniidae known commonly as the Tasar silkworm and Vanya silkworm. This species is variable, with at least 44 identified eco-races, populations adapted to varied ecological conditions and food plants. Though Tripura is endowed with well demarcated sub-tropical and temperate zones with a low average temperature of 10°C in the winter season which rises to a maximum average of 35°C in the summer, it supports the cultivation of tropical Tasar silkworm in a very unique manner naturally. The present study analyzes the morphological behavior of the Tasar silkworm in a new environment and its interaction to that particular eco-friendly environment to facilitate the socioeconomic upliftment regarding the sericulture practices exhibited by the rural people of the state of Tripura. This study also proves that in the near future Tasar culture will become a boon to the poor people along with Mulberry cultivation.

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Das, Subrata. "Mechanical failure of mulberry and tasar silk". Tekstilna industrija 69, n. 2 (2021): 16–20. http://dx.doi.org/10.5937/tekstind2102016d.

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This article investigates the tensile and twist failure of mulberry and tasar silk filaments. The mulberry and tasar filaments were subjected to uniaxial loading on Instron tensile tester at different rate of extensions and gauge lengths. Furthermore, the number of turns to rupture the silk filaments was tested using a twist tester. The results showed that the mulberry filament has higher tensile and twist strength than that of tasar filament. The SEM photomicrographs of the region of fracture divulged that the tensile and twist failure of mulberry and tasar filaments take place in catastrophic and non-catastrophic modes, respectively.

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Vanitha, K., U. C. Javali e P. S. Bhat. "Rearing performance of tropical Tasar silkworm (Antheraea mylitta Drury) on Cashew (Anacardium occidentale L.) and its commercial silk properties". Journal of Applied and Natural Science 9, n. 1 (1 marzo 2017): 150–55. http://dx.doi.org/10.31018/jans.v9i1.1163.

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Tasar silkworm, Antheraeamylitta Drury (Lepidoptera: Saturniidae) is one of the commercially exploited non-mulberry silkworms mainly reared outdoor on many wild plants. The ecorace of tasar silkworm occurring in cashew (Anacardiumoccidentale L.) plantations of Puttur was identified as A. mylitta KE-02. Pooled egg, larval and pupal period of tasar silkworm upon indoor rearing on cashew recorded were 6.43, 28.69 and 25.36 days, respec-tively, with the effective rate of rearing of 40 %. The average cocoon weight, pupal weight and shell weight recorded were 6.24 g, 5.30 and 1.18 g, respectively. The high shell ratio of 22.26 %, shows a healthy trend for high yielding tasar rearing on cashew. The commercial silk properties of cashew reared cocoons were assessed in comparison to silk properties of cocoons reared on Terminalia paniculata. Average filament length, average non-breakable filament length, denier, strength and elongation were found 547.2 m, 1231.6 m, 8.92 D, 1.57 gpd and 16.9 %, respectively on cashew and 518.2 m, 161.94 m, 9.13 D, 1.73 gpd and 18.7 % , respectively on T. paniculata. The present study has documented the biology of tasar silk worm on cashew and also the commercial silk properties of cocoon reared on cashew at preliminary level.

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Lakhchaura, Pallavi, e Manisha Gahlot. "A study on comfort properties of oak Tasar silk waste and acrylic blended fabrics". Journal of Applied and Natural Science 13, n. 2 (9 maggio 2021): 476–81. http://dx.doi.org/10.31018/jans.v13i2.2631.

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Oak Tasar is wild silk with natural golden brown colour and unique texture available in Himalayan region of India. A lot of fibre waste is generated during hand spinning of oak Tasar silk yarn which can be utilized by blending it with compatible fibre to incorporate the properties of both fibres in the yarn. The present study aimed to develop Oak Tasar silk waste and acrylic blended fabrics and study their comfort properties. The oak Tasar silk and acrylic blended plain weave and twill weave fabrics were prepared with five different blend ratios viz. 100:0, 60:40, 50:50, 40:60 and 0:100. The prepared fabrics were studied for comfort properties like thermal insulation (clo, TIV %), Q-max (warm/cool feeling), air permeability, water vapour transport rate and were statistically analysed. Results revealed that thermal insulation and clo value were found to be increased with increasing acrylic content in the fabric whereas Q- max, air permeability, water vapour permeability values were reduced with the addition of oak Tasar silk fiber in the blend. The 50:50 blended plain weave fabric among the blended fabrics had the highest clo value, i.e. 0.52 and 50:50 blended twill weave fabric had highest Q max value i.e. 0.109W/cm2. It was found from the study that the developed fabrics are comfortable and can be used for light winters.

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JOSHI, K. L. "A NEW STEM BORER INFESTING TASAR SILKWORM FOOD PLANTS". Scientific Temper 3, n. 1&2 (9 febbraio 2012): 17–20. http://dx.doi.org/10.58414/scientifictemper.2012.03.1.04.

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The tropical tasar silk is produced by the tasar silkworm, Antherea mylitta Drury. Since therearing is conducted on the trees of Arjun, Termilalia arjuna, Asan, T.tomentosa, Sal, Shorea robustaetc. the qualitative or quantitative production of the silk or seed directly dependent upon the qualityor amount of foliage available and utilized for tasar silkworm rearing. With the infestation of the foodplant by any pests, the production of foliage and thereby, production of tasar silk and quality seedare liable to be affected.The round headed stem borers and the flat headed stem borer are most common. Theseborers affect Arjun (T. arjuna), Asan (T. tomentosa) and Sal (Shorea robusta). Most of the borersattacking tasar food plants belonging to family Cerambycidae and Buprestidae of order Coleoptera.The stem borer infesting T. arjuna reported now is belonging to a new species Sphenopteraaerosa. The new species belongs to the family Buprestidae and the order Coleoptera.Various parameters were studied like symptoms of infestation, survival of plants and damagetype. The infestation of this new species ranged from 19 to 31 % in different blocks of plantation.

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Gedam, Pravin C., D. M. Bawaskar, N. B. Chowdary, A. Venugopal e A. D. Ingale. "Perception of Tasar Silkworm Rearers about the Climate Change Impact on the Tasar Silk Production of Maharashtra". Asian Journal of Agricultural Extension, Economics & Sociology 41, n. 7 (19 maggio 2023): 153–64. http://dx.doi.org/10.9734/ajaees/2023/v41i71958.

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Tasar sericulture is one of the allied sectors of agriculture which is a climate sensitive sector. Understanding farmer’s perception about the climate change impact on the rearing performance tasar silkworm is a key to the development of new climate tolerant technologies so as to encourage the other farmers for adopting sericulture eventually to boost the production of the tasar silk production in the state. Thus, the study was designed to establish farmer’s perception on climate change and its impacts on tasar silkworm rearing performance. The study was conducted in all four tasar silkworm rearing districts of Maharashtra namely Bhandara, Gondia, Gadchiroli and Chandrapur. A total 160 tasar silkworm rearers were selected randomly from all the four districts. Information was collected from each tasar silkworm rearers through Rapid Rural Appraisal (RRA) and focus group discussions (FGD). Climate Change Perception Index (CCPI) and Climate Change Impact Perception Index (CCIPI) were used to assess the perception about the impact of climate change on tasar silk production. Weighted Average Index (WAI) was used to analysis the impact. Results showed that majority of the respondents perceived that the yield and production of tasar cocoons production has reduced compared to last ten years. Moreover, frequent loss of the crop is noticed due to sudden change in the climatic conditions during the rearing of silkworm. Similarly, the high incidence of diseases and pest is also noticed thereby affecting the income generation of the tribal tasar farmers of the state. The results of the study will be useful for formulating appropriate policy against the ill-effects of the climate change. The results will also give impetus to the researcher to develop the thermo tolerant and climate change tolerant or resistant varieties or races of tasar silkworm so as to boost the tasar silk production of the state.

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Nagal, Anubhav, e Rajeev K Singla. "Applications of Silk in Drug Delivery: Advancement in Pharmaceutical Dosage Forms". Indo Global Journal of Pharmaceutical Sciences 03, n. 03 (2013): 204–11. http://dx.doi.org/10.35652/igjps.2013.25.

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Silk is one of the important natural protein fibre produced by certain insect larvae, Major source are mulberry silkworm Bombyx mori, Tasar silkworm Antheraea mylitta, Oak tasar silkworm Antheraea proyeli, Eri silkworm Philosamia ricini and Muga silkworm Antheraea assamensis. Silk is having pleotropic effect of being novel aid in drug delivery because of its properties like self-assembly, mechanical toughness, processing flexibility, biodegradability and biocompatibility. Silkworm silk has been widely used as biomedical sutures, 3D- silk fibroin scaffolds, films, nanofibers, nanoparticles, microspheres, for coatings, microneedles etc. Present review article covers these with sufficient information. © 2011 IGJPS. All rights reserved.

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Vaidya, Shubhangi, e Ulka Yadav. "Rearing performance of Philosamia ricini (Eri silkworm) in different seasons of Ujjain district". Environment Conservation Journal 15, n. 3 (20 dicembre 2014): 109–13. http://dx.doi.org/10.36953/ecj.2014.15317.

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India has the unique distinction of being only country producing all the five commercially traded varieties of natural silk namely Mulberry, Eri, Muga, Temperate tasar and Tropical tasar. The silk produced by Philosama ricini is called Eri silk. Eri silk is known as Non Violence silk or Piece silk. It is also said to be Poor Person’s silk. The Eri silkworm (Philosamia ricini) is multivoltine, holometabolus, non-mulberry, completely domesticated and feed on castor (Ricinus communis) leaves.We observed the effect of different seasons on rearing performance of Eri silkworm in respect of different larval parameters (larval weight, larval length, ERR% and pupation) and cocoon parameter (cocoon weight, pupae weight, shell weight & shell %). Our findings clearly indicated that the rearing performance of Eri silkworm was better in spring season than winter and autumn season of Ujjain district M.P.

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Kusurkar, Tejas Sanjeev, Anamika Gangwar, Mangesh Bawankar, Anupam Mandal, Dattatraya Dethe, Ashwani Kumar Thakur, Sushil Kumar Singh et al. "A glowing antioxidant from tasar silk cocoon". RSC Advances 5, n. 126 (2015): 104563–73. http://dx.doi.org/10.1039/c5ra14148f.

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In this study, a fluorophore can be easily localized inside animal cell line H9c2 using a novel N-TER™ based strategy, and the internalized fluorophore acts both as a fluorescent dye and as an antioxidant.

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Più fonti

Tesi sul tema "TASAR SILK"

Dávila, Rabanal Carolina, e Aranda Danilo Edwards Sánchez. "Propuesta de reducción del costo de despacho de cereales a granel". Bachelor's thesis, Universidad Ricardo Palma, 2015. http://cybertesis.urp.edu.pe/handle/urp/1299.

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La presente investigación denominada “Propuesta de reducción del costo de despacho de cereales a granel” tiene el objetivo de determinar una propuesta de reducción del costo de despacho de cereales a granel de la empresa objeto de estudio. Se realizó un estudio de causa - efecto, análisis de datos cuantitativos y observaciones instantáneas para identificar la actividad donde se tiene un sobre costo en el servicio de despacho. Identificando como problemas los altos costos que significan las actividades de liberación de paneles y barredura de silos metálicos que se realizan de manera manual. Se presentó el estudio económico de dos propuestas de solución, de las cuales se optó que la mejor propuesta tiene una inversión que asciende a S/.232,700.49 nuevos soles; el cual será asumido al 100% por la misma empresa. La evaluación económica muestra un Valor Actual Neto (VAN) mayor a cero y una Tasa Interna de Retorno (TIR) mayor al costo de oportunidad del accionista por lo que se concluye que el proyecto genera valor y es económicamente viable, al implementar dicha propuesta las actividades de liberación de paneles y barredura de silos metálicos se realizaran de manera semiautomática. This research entitled "Proposal for reducing the cost of bulk grain exports" aims to determine a method for reducing the cost of bulk grain dispatch of the company under study. A cause and effect study was conducted using quantitative analysis of data and instant feedback to identify where the activity has a cost overrun on the dispatch service. As problems identifying significant than the high costs brought Activities Liberation panels and metal silo sweep carried out manually. An economic study of two proposed solutions, of which it was decided that the best proposal is an investment amounting to S/. 232,700.49 was presented; which shall be provided 100% by the same company. The economic assessment shows a higher Net Present Value (NPV) of zero and a Internal Rate of Return (IRR) greater than the opportunity cost of shareholders. Therefore, it is concluded that the project creates value and is economically feasible to implement this proposal, the proposal to implement activities and sweep release panels were held metal silo semi-automatically.

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Das, Subrata. "Studies on Tasar silk". Thesis, 1996. http://localhost:8080/xmlui/handle/12345678/3862.

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KUMAR, NARENDRA. "STUDIES OF TASAR SILK FIBROIN/ BIOACTIVE CLAY NANOCOMPOSITE FILMS". Thesis, 2019. http://dspace.dtu.ac.in:8080/jspui/handle/repository/17060.

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The purpose of our research is creating a new nanocomposite material using tasar silk fibroin and modified montmorillonite (MMT) clay. Generally, the silk fibroin is starred as a promising base material for biomedical applications. The incorporation of montmorillonite (MMT) into silk fibroin would improve physical properties of the silk fibroin and impart antibacterial properties. We investigated tasar silk fibroin with MMT for the different types of physical properties. Specifically, tasar silk fibroin were dissolved in ionic liquid and by mixing certain amounts of modified MMT clay to obtain a bionanocomposite. Their ultrastructure were successfully visualized by transmission electron microscopy. The morphology and particle size of modified MMT clay was examined using scanning electron microscopy and particle size analyzer. This nanocomposite was comprised of intercalated thin layers of MMT, each with a thickness of about 1.66nm which is confirmed by XRD results. We also performed TGA and FTIR analysis in conjunction with morphological data for characterization. Convincingly we obtained a new bionanocomposite of tasar silk firboin and MMT, which has never been reported. This unique nanocomposite possess antibacterial properties which can make it be useful as scaffold for biological tests in tissue engineering.

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Libri sul tema "TASAR SILK"

N, Panday P., a cura di. Silk production: Role of feed on tasar silk and egg production. New Delhi: APH Pub. Corp., 2004.

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Vohra, Gautam. Women in Bihar: A study of their role in tasar silk production. New Delhi: Vikas Pub. House, 1988.

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Garifullin, V. Z. Kalăm Kȯche: Tatar zhurnalistlarynyn︠g︡ tekst tȯzu̇ ostalygy = Sila pera. Kazan: Dău̇lăt Universitety Năshrii︠a︡ty, 2008.

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Aleksandr, Perevozchikov, a cura di. Armii mongolo-tatar X-XIV vekov: Voinskoe iskusstvo, snari︠a︡zhenie, oruzhie. Moskva: Vostochnyĭ Gorizont, 2002.

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Jacobson, Svetlana. Golden Silk. Eri, Muga, Tassar. Independently Published, 2019.

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Jacobson, Svetlana. Golden Silk. Eri, Muga, Tassar. Russian Edition. Independently Published, 2019.

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Capitoli di libri sul tema "TASAR SILK"

Vootla, Shyam Kumar, Cho Chong Su e Syed Iqbal Masanakatti. "Self-assembled Nanoparticles Prepared from Tasar Antherea mylitta Silk Sericin". In Biomedical Applications of Natural Proteins, 65–77. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2491-4_5.

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Raju, P. J., D. M. Mamatha e S. V. Seshagiri. "Sericulture Industry". In Environmental and Agricultural Informatics, 366–87. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-9621-9.ch017.

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India has a huge potential for sericulture development unlike other agro industries since sericulture is a unique agro-based industry comprising of several components such as mulberry cultivation, silkworm rearing, silk reeling and other connected activities. Each of these components appear to be independent but closely linked with one another having intricacies of their own. The major activities of these components comprises of mulberry food-plant cultivation to feed the silkworms which spin silk cocoons and reeling the cocoons for unwinding the silk filament for manufacturing silk goods, subjecting them to the process of degumming, bleaching, dyeing, weaving and printing. Thus sericulture industry provides employment to approximately 7.85 million in rural and semi urban areas in India. Of these, a sizeable number belongs to the economically weaker sections of the society, including women. In addition to this, India has the unique credibility of producing all the five known commercial silk viz., mulberry, tropical tasar, oak tasar, eri and muga of which muga with its golden yellow glitter is unique and prerogative of India. Though silk is a luxury item, it is produced by the rural populace and purchased by urban rich, causing money to flow from urban to rural. It also prevents rural people to migrate to urban areas. The United Nation's recent endeavor “Millennium Development Goals” has an eight point programme to make our earth more healthy wealthy and free from inequalities by 2015. Sericulture being a rural and women friendly business aligns well with many of these ideas which are explained in detail in the chapter.

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Atti di convegni sul tema "TASAR SILK"

Pal, Abhra, Amitava Akuli, Tamal Dey e Nabarun Bhattacharyya. "Development of machine vision solution for grading of Tasar silk yarn". In 2013 IEEE Second International Conference on Image Information Processing (ICIIP). IEEE, 2013. http://dx.doi.org/10.1109/iciip.2013.6707547.

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