Academic literature on the topic 'Lac Resin'

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Journal articles on the topic "Lac Resin"

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Badhani, Gaurav, Shruti Yadav, Elen Reji, and Subbarayappa Adimurthy. "Recovery of Lac Resin from the Aqueous Effluent of Shellac Industry." Sustainable Chemistry 4, no. 1 (2022): 1–7. http://dx.doi.org/10.3390/suschem4010001.

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Shellac and aleuritic acid manufacturing industries generate a lot of alkaline aqueous effluent during the process of manufacture of shellac and aleuritic acid from the seedlac/sticklac. The generated effluent contains lac resin, lac wax, lac dye and other water-soluble organic acids. Shellac industries in India face problems with the disposal of aqueous effluent due to the presence of considerable amounts of natural organic molecules and the dark colour solution. To address these problems, we have developed a novel method for the selective recovery of the lac resin from the alkaline aqueous e
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Yan, Xiaoxing, Wenting Zhao, and Lin Wang. "Preparation and Performance of Thermochromic and Self-Repairing Dual Function Paint Film with Lac Resin Microcapsules and Fluorane Microcapsules." Polymers 13, no. 18 (2021): 3109. http://dx.doi.org/10.3390/polym13183109.

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Microcapsules with lac resin as the core material and urea-formaldehyde resin as the wall material were prepared by in situ polymerization, and then the lac resin microcapsules and fluorane microcapsules were added into a water-based primer or topcoat, respectively, to prepare water-based coatings with dual functions of thermochromic and self-repair. The effects of different methods of adding microcapsules on the optical properties, mechanical properties, self-repairing properties, and the aging resistance of water-based paint film were investigated, so as to prepare water-based paint film wit
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Vikas, yadav, and Sitanshu Dr. "INSECT BIOLOGY, DISTRIBUTION, HOST PLANTS, NATURAL ENEMIES AND BIO-EFFICACY OF PESTICIDES AGAINST MAJOR PREDATORS OF LAC INSECT: A REVIEW." International Research Journal of Modernization in Engineering Technology and Science 5, no. 5 (2023): 7887–93. https://doi.org/10.5281/zenodo.7982628.

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Lac is the valuable Resin secrete by the lac insect. India is major lac producing country about 80% of the total world production. Lac insects are exploited for their products of commerce viz., Resin, dye, and wax. Cultivation of lac not only to provided the livelihood to lac growers it is also helps in conserving vast stretches of forests and biodiversity associated with lac insect complex in India. Lac flourish about 113 varieties of host plants Palas, kusum, ber and khair ,etc for completing their life cycle. During its life cycle the insects spends only few hours of active after that they
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SARITA, PASSEY, SEN (nee MAZUMDAR) SOMDUITA, and B. V. SUBRAMANIAN G. "Some Aspects of the Chemistry of Lac-Resin." Journal of Indian Chemical Society Vol. 75, Oct-Dec 1998 (1998): 575–79. https://doi.org/10.5281/zenodo.5915562.

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Department of Chemistry, University of Delhi, Delhi-110 007 <em>Manuscript received 21 July 1998</em> The native lac-resin was fraetionated to a consistent hard-resin fraetion whieh was subjected separately to periodate fission, permanganate oxidation, borobydride reduction and hydrazinolysis. The statistical results are described. The substitution of the hydroxyl function by halogen of the primary terpene adds is also described.
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Ramani, R., and K. Sharma. "Record of natural infestation of the Indian Lac Insect, Erria Lacca (Kerr) (Coccoidea: Tachardiidae) on Acacia Tortilis (Forsskal) Hayne and Calliandra Surinamensis Benth." Indian Journal of Forestry 33, no. 2 (2010): 189–91. http://dx.doi.org/10.54207/bsmps1000-2010-lf2jlk.

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The Indian lac insect Kerria lacca (Coccoidea: Tachardiidae) is a beneficial insect, exploited commercially for lac, from which economically important resin, dye and wax are obtained. Natural infestations of this species have been recorded on two hitherto unreported host plants, Acacia tortilis (Forsskal) Hayne and Calliandra surinamensis Benth. Both species belong to Fabaceae, the family which comprises of about one-thirds of reported lac host species. Fairly large populations of the lac insects of good density have been observed on these hosts, indicative of good survival of the lac insect.
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SHARMA, S. C., S. K. PANDEY, and N. PRASAD. "Equipments for Manufacturing Lac Based Value Added Products." JOURNAL OF AGRISEARCH 9, no. 03 (2021): 249–54. http://dx.doi.org/10.21921/jas.v9i03.11010.

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Lac, a natural resin of insect origin, yields basically three useful materials i.e.resin, wax and dye and is an important source of livelihood for poor and tribal farmers in the lac growing regions. Lac growers harvest lac in form of lac stick and lac encrustations attached with sticks are then scraped which is known as sticklac. Sticklac contains impurities which need to be removed by converting sticklac in to seedlac through different unit operations under primary lac processing so that seedlac, a semi-refined product, can be further used in making lac based value added products i.e.shellac,
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Wang, Weiwei, Pengfei Liu, Qin Lu, et al. "Potential Pathways and Genes Involved in Lac Synthesis and Secretion in Kerria chinensis (Hemiptera: Kerriidae) Based on Transcriptomic Analyses." Insects 10, no. 12 (2019): 430. http://dx.doi.org/10.3390/insects10120430.

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Lac is a type of natural resin secreted by lac insects and is widely used in the military and other industries because of its excellent adhesion and insulation properties. The main ingredients of lac are lactones and lactides, which are formed from hydroxy fatty acids and sesquiterpene esters. In this study, we measured lac secretion rates by the insect Kerria chinensis at different developmental stages and identified lac secretion-minimum and lac secretion-active stages of the insect. We then analyzed transcriptomes of lac secretion-minimum and lac secretion-active stages of the insect. Based
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Sarkar, P. C., and A. K. Shrivastava. "FTIR spectroscopy of lac resin and its derivatives." Pigment & Resin Technology 26, no. 6 (1997): 378–81. http://dx.doi.org/10.1108/eum0000000004464.

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S.K. Giri, M.F. Ansari, and B. Baboo. "Effect of Storage Methods on Quality of Lac - A Natural Resin." Journal of Agricultural Engineering (India) 47, no. 1 (2024): 26–30. http://dx.doi.org/10.52151/jae2010471.1398.

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A study was carried out to assess the changes in physico-chemical parameters of lac resin during storage for one year. All three forms of lac viz. sticklac, seedlac and shellac were stored following different methods as practiced by lac traders and industries, and some quality parameters of the products were evaluated during storage. Qualitative losses included decrease in flow, heat polymerization time (life) and rate of filtration; and increase in colour index and hot alcohol insolubles of lac resin during storage. In case of sticklac, maximum increase in hot alcohol insolubles (24% in ari a
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Kumar, Arvind, and Manju Rani. "Lac, Kerria lacca rearing on Flemingia macrophylla with NPK fertilizer: impact on plant growth, lac yield, and lac parasitisation." European Journal of Biological Research 9, no. 4 (2019): 259–66. https://doi.org/10.5281/zenodo.3551585.

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Lac insect, <em>Kerria lacca</em> Kerr. is the only commercial lac producing insect in the world. This tiny insect reared commercially on many specific host plants. Lac product is a natural resin of outstanding properties which is utilized in many products worldwide. Lac insects get settled on the host tree and take their nutrition continuously from the same part. Hence, additional fertilizer application becomes most important component for sustainable host plant growth and lac cultivation. Therefore, to determine the effect of chemical fertilizers (NPK) on <em>Flemingia macrophylla</em> and l
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Dissertations / Theses on the topic "Lac Resin"

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Antoncich, Ivan. "Resan med FC Nörd : Gemenskap i utanförskap." Thesis, Linköpings universitet, Institutionen för kultur och kommunikation, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-128123.

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Jag kommer i denna uppsats använda min egen upplevelse och mitt eget perspektiv för att kunna återberätta det som kan vara avgörande för att ett fotbollslag ska klara alla hinder framför sig. Vad det kan innebära för otränade individer att sättas i en grupp och försöka fungera som en grupp. Vad ledarskapets roll kan betyda för en grupp eller vad det kan orsaka för problem om den som blir ledare inte vet hur en ledare ska vara eller vad dess roll innebär inom fotboll.vad det innebär att vara i en grupp och vad som krävs att en grupp ska fungera som ett lag.<br>I will in this paper to use my own
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Antoncich, Ivan. "Resan med FC Nörd : Gemenskap i utanförskap." Thesis, Linköpings universitet, Institutionen för kultur och kommunikation, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-127632.

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I denna uppsats återberättar jag min upplevelse och mitt perspektiv på vad som kan vara avgörande för att ett fotbollslag ska klara av hinder framför sig. Uppsaten fokuserar på hur skilda individer kan skapa en tillhörighet och gemenskap när de försätts i ett sammanhang där de delar ett utanförskap i samhället. Denna gemenskap i utanförskap kopplas till teorier kring etniska grupper och gruppstrukturer.<br>In this essay i will retell my experience and my view on what can be crucial for a soccer team to clear all obstacles in front of a team. The paper focus on how different individuals kan cre
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Franco, Pietro Escobar. "Remoção de metais pesados utilizando resina Amberlite IR-120 em sistema batelada." Universidade Estadual do Oeste do Paraná, 2011. http://tede.unioeste.br:8080/tede/handle/tede/2924.

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Submitted by Marilene Donadel (marilene.donadel@unioeste.br) on 2017-08-23T20:19:47Z No. of bitstreams: 1 Pietro E Franco 2011.pdf: 990760 bytes, checksum: fee1787afa670f26170e23dc070a0075 (MD5)<br>Made available in DSpace on 2017-08-23T20:19:47Z (GMT). No. of bitstreams: 1 Pietro E Franco 2011.pdf: 990760 bytes, checksum: fee1787afa670f26170e23dc070a0075 (MD5) Previous issue date: 2011-02-07<br>This study evaluated the removal of heavy metal íons Zn+2 and Ni+2 through the íon exchange process using a cationic resin Amberlite IR-120/Na+. The characterization of wastewater from an industry of
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Gong, Hua. "3D Printing for Microfluidics." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/7690.

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This dissertation focuses on developing 3D printing as a fabrication method for microfluidic devices. Specifically, I concentrate on the 3D printing approach known as Digital Light Processing stereolithography (DLP-SLA) in which serially projected images are used to sequentially photopolymerize layers to build a microfluidic device. The motivation for this work is to explore a much faster alternative to cleanroom-based microfabrication that additionally offers the opportunity to densely integrate microfluidic elements in compact 3D layouts for dramatic device volume reduction. In the course of
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Ming, LO Win, and 羅文明. "The Research on the Polymeric Resin for Preventing the Pollution of Architectur Stone''s Surface.to study on the lab. test methods." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/93404950533174320966.

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Books on the topic "Lac Resin"

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Eiliazadeh, Edmond. Recovery process of rubber material from industrial waste latex and modification of natural rubber based on natural resin, lac. Brunel University, 1988.

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W, Street Kenneth, Philipp Warren H, and Lewis Research Center, eds. From the chemistry lab to licensing. National Aeronautics and Space Administration, Lewis Research Center, 1998.

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China. The accounting law of the People's Republic of China = b[Zhonghua Remin Gongheguo kuai ji fa]. Foreign Language Press, 2001.

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Demirkol, Selami. Danıştay idari dava daireleri karar özetleri: Vergi, resim ve harçlar ile benzeri mali yükümlülükler dışında kalan uyuşmazlıklar, 1984-2005. 2nd ed. Beta, 2006.

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Demirkol, Selami. Danıştay vergi dava daireleri karar özetleri: Vergi, resim ve harçlar ile benzeri mali yükümlerle ilgili uyuşmazlıklar, 1984-2005. 2nd ed. Beta, 2006.

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Sack, Steven Mitchell. Getting fired: What to do if you're fired, downsized, laid off, restructured, discharged, terminated, or forced to resign. Warner Books, 1999.

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Shellac, Seed Lac The. 2000 World Market Forecasts for Imported Shellac, Seed Lac, Stick Lac, Resins, and Gum-Resins. Icon Group International, 2000.

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Shellac, Seed Lac The, Seed Lac, Stick Lac, Resins, The Shellac, and Gum-Resins Research Group. The 2000 World Forecasts of Shellac, Seed Lac, Stick Lac, Resins, and Gum-resins Export Supplies (World Trade Report). 2nd ed. Icon Group International, 2000.

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Shellac, Seed Lac The, Lac Stick Lac Resins The Shellac Seed, and Gum-Resins Research Group. The 2000 Import and Export Market for Shellac, Seed Lac, Stick Lac, Resins, and Gum-resins in Greece (World Trade Report). 2nd ed. Icon Group International, 2001.

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Shellac, Seed Lac The, Lac Stick Lac Resins The Shellac Seed, and Gum-Resins Research Group. The 2000 Import and Export Market for Shellac, Seed Lac, Stick Lac, Resins, and Gum-resins in Djibouti (World Trade Report). 2nd ed. Icon Group International, 2001.

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Book chapters on the topic "Lac Resin"

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Gooch, Jan W. "Hard Lac Resin." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_5795.

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Namasivaya Naveen, S., and Saumendra K. Bajpai. "Community-Level Process-Design for the Extraction of Lac Resin and Dye." In Design Science and Innovation. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2312-8_13.

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Sugibayashi, Toshio, Kiyomi Mori, Hideki Kyogoku, and Kozo Ikegami. "Strength Evaluation of Scarf and Stepped Lap Joints Bonded with Adhesive Resin." In Applied Stress Analysis. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0779-9_43.

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Catizone, Luigi. "La greffe de rein." In Guide de la dialyse. Springer Paris, 1999. http://dx.doi.org/10.1007/978-2-8178-0768-3_27.

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Bencsik, Péter. "Nagy Imre Gerő Ernő "tiszta lap" politikájáról." In Fontes et Libri. Szegedi Tudományegyetem, 2023. http://dx.doi.org/10.14232/btk.2023.sje.2.

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In July 1956, the situation of Mátyás Rákosi became untenable in Hungary, and he had to resign as first secretary of the Hungarian Working People’s Party (HWPP). He was succeeded by the second man of the regime, Ernő Gerő, who, like his predecessor, was rejected by the Hungarian society. The HWPP made a serious mistake from points of view: not only by appointing Gerő as the head of the party, but also by failing to restore Imre Nagy’s party membership and reinstate him as head of government. (He had been removed from office in the first half of 1955 and expelled from the party in December 1955.) The 20th Congress of the Communist Party of the Soviet Union created a new situation in which even Gerő, previously a committed Stalinist, became an advocate of reform himself. Against all expectations, Gerő, although his rule lasted less than a hundred days, announced and even began to implement significant reforms. In this paper, I examine three questions. Firstly, I compare Imre Nagy’s reforms, the ‘new course’ announced in 1953 with Gerő’s programme, the ‘clean sheet’ policy three years later. Secondly, I will review how Imre Nagy’s request for the reinstatement of his party membership was handled by the old-new party leadership. Finally, I would like to know how Imre Nagy himself assessed the ‘clean sheet’ programme in the late summer and early autumn of 1956, and to what extent his assessment of it changed afterwards, following the 1956 revolution.
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Catizone, Luigi. "Notions d’anatomie du rein et des voies urinaires." In Guide de la dialyse. Springer Paris, 1999. http://dx.doi.org/10.1007/978-2-8178-0768-3_1.

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Pedrinelli, R., A. Clerico, L. Graziadei, S. Taddei, M. Del Chicca, and A. Salvetti. "Lack of Evidence for Na/K ATPase Inhibition as a Cause of Low Renin Human Hypertension." In Diuretics: Basic, Pharmacological, and Clinical Aspects. Springer US, 1987. http://dx.doi.org/10.1007/978-1-4613-2067-8_11.

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Peifer, Karl-Nikolaus. "Schutz ethischer Werte im Europäischen Lauterkeitsrecht oder rein wirtschaftliche Betrachtungsweise?" In MPI Studies on Intellectual Property, Competition and Tax Law. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-05426-6_6.

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Reinhardt, Ilka, Felix Knauer, Micha Herdtfelder, Gesa Kluth, and Petra Kaczensky. "Wie lassen sich Nutztierübergriffe durch Wölfe nachhaltig minimieren? – Eine Literaturübersicht mit Empfehlungen für Deutschland." In Evidenzbasiertes Wildtiermanagement. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65745-4_9.

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ZusammenfassungMit dem anwachsenden Wolfsbestand nehmen auch die Übergriffe auf Nutztiere in Deutschland von Jahr zu Jahr zu. In einem Punkt sind sich Landwirtschaft, Naturschutz und Politik einig: Wolfsübergriffe auf Nutztiere sollen nachhaltig minimiert werden. Darüber, wie dieses Ziel am besten erreicht werden kann, gibt es jedoch unterschiedliche Ansichten. In der öffentlichen Debatte werden Forderungen nach einem vereinfachten Abschuss von Wölfen oder einer generellen Bejagung immer lauter. Dabei wird davon ausgegangen, dass durch solche Maßnahmen Nutztierschäden durch Wölfe nachhaltig minimiert werden könnten.Bevor Maßnahmen des Wildtiermanagements angewandt werden, braucht es klare Zielvorgaben. Die erste Frage muss daher lauten: Was ist das primäre Ziel der Managementmaßnahme? Auf Basis wissenschaftlicher Evidenz muss dann vorab evaluiert werden, ob die in Frage kommenden Maßnahmen geeignet sind, das Ziel zu erreichen. Dies ist zwingend, wenn die Maßnahmen auch das Töten von empfindungsfähigen und noch dazu streng geschützten Tieren beinhalten. Um überprüfen zu können, wie wirksam die gewählten Managementmaßnahmen im konkreten Einsatz sind, werden Kriterien zur Bewertung des Erfolgs benötigt.In diesem Kapitel gehen wir der Frage nach, welche Managementmaßnahmen nach aktuellem Wissensstand geeignet sind, das Ziel, Wolfsübergriffe auf Nutztiere nachhaltig zu minimieren, zu erreichen. Wir erläutern zunächst, warum Wölfe Nutztiere töten und ob es einen Zusammenhang zwischen der Anzahl der Wölfe und der Höhe der Nutztierschäden gibt. Dafür untersuchen wir unter anderem die Daten von Wolfsübergriffen auf Nutztiere in Deutschland. Anhand einer umfangreichen Literaturübersicht analysieren wir, ob die folgenden Managementmaßnahmen geeignet sind, Wolfsübergriffe auf Nutztiere nachhaltig zu minimieren: 1) eine generelle Bejagung von Wölfen, 2) die selektive Entnahme von einzelnen schadensverursachenden Wölfen und 3) nicht-letale Herdenschutzmethoden. Abschließend legen wir Empfehlungen zu einem evidenzbasierten und lösungsorientierten Wolfsmanagement in Bezug auf den Wolf-Nutztierkonflikt vor.In Deutschland steigen mit der Zunahme der Wolfsterritorien auch die Übergriffe auf Schafe und Ziegen. Allerdings unterscheidet sich die Stärke des Anstiegs zwischen den Bundesländern erheblich. Einzelne Bundesländer erreichen bei der gleichen Anzahl an Wolfsterritorien sehr unterschiedliche Schadensniveaus. Dies deutet darauf hin, dass das Ausmaß der Schäden nicht allein durch die Anzahl der Wölfe bestimmt wird. Wir vermuten, dass die Unterschiede im Schadensniveau vor allem in der unterschiedlichen Umsetzung von Herdenschutzmaßnahmen in den einzelnen Bundesländern begründet sind.Die Ergebnisse der Literaturrecherche bezüglich der Wirksamkeit von letalen und nicht-letalen Managementmaßnahmen zum Schutz von Nutztieren zeigen klar: Eine generelle Bejagung von Wölfen führt nicht zu einer Reduktion von Nutztierschäden. Es gibt keine wissenschaftlichen Belege dafür, dass durch eine Bejagung die Schäden deutlich und nachhaltig verringert werden, es sein denn, der Bestand wird drastisch reduziert oder ganz ausgelöscht. Das ist in Deutschland und in der Europäischen Union bei aktueller Rechtslage nicht möglich. Im Gegensatz zu einer undifferenzierten Bejagung des Wolfs kann der gezielte Abschuss von Einzeltieren wirksam sein, wenn es sich tatsächlich um Individuen handelt, die gelernt haben, empfohlene funktionstüchtige Schutzmaßnahmen zu überwinden. Allerdings sind solche Fälle selten, und es ist schwierig in der freien Natur, ein bestimmtes Individuum sicher zu identifizieren und zu töten. Nicht-letale Herdenschutzmaßnahmen sind im Vergleich zu letalen Maßnahmen deutlich besser geeignet, eine nachhaltige Reduktion der Schäden zu erreichen. Der einzige Weg, um in Koexistenz mit Wölfen eine dauerhafte Reduktion von Schäden an Nutztieren zu erreichen, ist die fachgerechte Umsetzung von Herdenschutzmaßnahmen in breiter Fläche. Übergriffe auf Nutztiere lassen sich zwar auch dadurch nicht vollständig verhindern, sie können jedoch durch korrekt angewandte Herdenschutzmaßnahmen deutlich reduziert werden.Das Wissen, wie Schäden an Weidetieren durch Herdenschutzmaßnahmen verringert werden können, ist auch in Deutschland vorhanden. Viele Tierhaltende haben hier inzwischen ein hohes Maß an Fachkompetenz entwickelt. Die Erfahrung aus den vergangenen 20 Jahren zeigt allerdings auch, dass die Auszahlung von Fördergeldern für Herdenschutzmittel allein nicht ausreicht, um die Anzahl der Übergriffe deutlich zu senken. Es muss auch gewährleistet werden, dass die fachliche Expertise für die korrekte Anwendung und Wartung zur Verfügung steht. Vor allem in Gebieten mit Prädations-Hotspots sollte aktiv auf die Tierhaltenden zugegangen werden und sollten die Gründe für die vermehrten Übergriffe analysiert und abgestellt werden.Bisher fehlen aus Deutschland Daten zur Funktionstüchtigkeit der geförderten und im Einsatz befindlichen Schutzmaßnahmen. Solche Daten sind notwendig, um zu verstehen, warum trotz steigender Präventionsausgaben die Nutztierschäden teilweise auch in Gebieten mit jahrelanger Wolfspräsenz nicht zurückgehen. Sie sind zudem die Grundlage für wissenschaftliche Studien zu möglichen Unterschieden in der Wirksamkeit verschiedener Herdenschutzmethoden. Daten zur Funktionstüchtigkeit von geförderten Herdenschutzmaßnahmen sollten zumindest stichprobenartig gesammelt werden, unabhängig davon, ob es in dem jeweiligen Gebiet Wolfsübergriffe gibt. Neben der Untersuchung der rein technischen Aspekte des Herdenschutzes ist es ebenso wichtig herauszufinden, wie die Akzeptanz gegenüber Herdenschutzmaßnahmen bei den Tierhaltenden verbessert und deren Eigenmotivation erhöht werden kann. Hierfür sind Daten zur Umsetzbarkeit und Akzeptanz der eingesetzten Herdenschutzmaßnahmen erforderlich. Nutztierhaltende sollten schon in die Konzeption entsprechender Studien mit eingebunden werden, um sicherzustellen, dass die Fragen untersucht werden, deren Beantwortung für sie am dringendsten ist.Der Weg von einem emotionsbasierten zu einem evidenzbasierten Wolfsmanagement führt über wissenschaftlich robuste Daten und Analysen. Entsprechende Untersuchungen sind nur in enger Zusammenarbeit zwischen Weidetierhaltung und Wissenschaft möglich. Basierend auf der Fachkompetenz und den praktischen Erfahrungen der Weidetierhaltenden kann die Wissenschaft helfen, die Herdenschutzmaßnahmen zu identifizieren und weiterzuentwickeln, die Nutztierübergriffe am effektivsten reduzieren.SummaryAs the wolf population grows, the number of attacks on livestock in Germany also increases from year to year. Agriculture, nature conservation and politics agree on one point: that wolf attacks on livestock should be reduced sustainably. However, there are differing views on how this goal can best be achieved. In the public debate, calls for simplified shooting of wolves or general hunting are becoming louder and louder. The assumption is that such measures could sustainably reduce livestock damage caused by wolves.Before wildlife management measures are applied, clear objectives are needed. The first question, therefore, must be: What is the primary objective of the management measure? Based on scientific evidence, it must be evaluated in advance whether the measures under consideration are suitable for achieving the objective. This is mandatory if the measures include the killing of sentient animals, particularly if they are strictly protected. Criteria for evaluating if the objective was reached are needed in order to be able to verify how effective the selected management measures are when applied.In this chapter, we address the question of which management measures are suitable, based on current knowledge, to achieve the goal of sustainably reducing wolf attacks on livestock. We first explain why wolves kill livestock and whether there is a relationship between the number of wolves and the amount of livestock damage. To do this, we examine, among other things, data on wolf attacks on livestock in Germany. Based on an extensive literature review, we analyse whether the following management measures are suitable to sustainably reduce wolf attacks on livestock: 1) a general hunting of wolves, 2) the selective removal of individual wolves causing damage, and 3) non-lethal livestock protection methods. Finally, we present recommendations for evidence-based and solution-oriented wolf management with respect to wolf-livestock conflict.In Germany, as wolf territories increase, attacks on sheep and goats also increase. However, the magnitude of the increase differs considerably among the federal states. Individual federal states achieve very different levels of damage with the same number of wolf territories. This suggests that the extent of damage is not solely determined by the number of wolves. We suspect that the differences in damage levels are mainly due to the different implementation of livestock protection measures in the individual federal states.The results of the literature review regarding the effectiveness of lethal and non-lethal management measures to protect livestock clearly show that general hunting of wolves does not reduce livestock damage. There is no scientific evidence that hunting significantly and sustainably reduces damage, unless the wolf population is drastically reduced or completely eradicated. This is not possible in Germany and in the European Union under the current legal situation. In contrast to an undifferentiated hunting of the wolf, the targeted shooting of individual animals can be effective if they are actually individuals that have learned to overcome recommended functional livestock protection measures. However, such cases are rare and it is difficult in the field to safely identify and kill a specific individual. Non-lethal livestock protection measures are much better at achieving sustained reductions in damage compared to lethal measures. The only way to achieve a lasting reduction of damage to livestock in coexistence with wolves is the professional implementation of livestock protection measures on a broad scale. Non-lethal livestock protection measures do not completely prevent attacks on livestock. However, if correctly applied they can significantly reduce wolf caused damages on livestock.The knowledge of how to reduce livestock depredation by wolves through herd protection measures is also available in Germany. Many livestock farmers have developed a high level of expertise in this field. However, experience from the past 20 years also shows that the funding of livestock protection measures alone is not enough to significantly reduce the number of wolf attacks. It is also necessary to ensure that technical expertise is available for proper application and maintenance of the measures. Especially in areas with predation hotspots, livestock owners should be actively approached and the reasons for increased attacks analysed and remedied.To date, there is a lack of data from Germany on the functionality of funded and applied protection measures. Such data are necessary to understand why, despite increasing prevention expenditures, livestock damage has not decreased in some cases, even in areas where wolves have been present for years. Moreover, such data are the basis for scientific studies on possible differences in the effectiveness of different livestock protection methods. Data on the functionality of funded protection measures should be collected at least on a random basis, regardless of whether there are wolf attacks in the respective area. In addition to investigating the purely technical aspects of herd protection, it is equally important to find out how the acceptance towards livestock protection measures can be improved among livestock owners and how their self-motivation can be increased. This requires data on the feasibility and acceptance of the applied protection measures. Livestock keepers should be involved already in the conception of appropriate studies to ensure that the investigations will answer the most urgent questions for them.The path from emotion-based to evidence-based wolf management is through scientifically robust data and analysis. Appropriate research is only possible through close collaboration between livestock owners and science. Based on the expertise and practical experience of farmers, science can help identify and improve the livestock protection measures that most effectively reduce wolf attacks on livestock.
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"Hard lac resin." In Encyclopedic Dictionary of Polymers. Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-30160-0_5707.

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Conference papers on the topic "Lac Resin"

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Wood, Kurt. "Use of Accelerated Weathering Testing to Reduce Risk for New Topcoat Standards and Specifications." In SSPC 2018. SSPC, 2018. https://doi.org/10.5006/s2018-00083.

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Abstract Numerous industry studies have shown a lack of correlation between outdoor weathering performance in Florida, and performance in common accelerated weathering tests-- particularly when multiple types of resins are being compared. No single accelerated weathering test exists that can predict the outdoor performance for every type of resin in every color. For this reason, when creating new standards and specifications for long-lived exterior coatings, it is important to critically examine accelerated weathering data, before setting accelerated weathering requirements that will be used t
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Chida, Kota, Heng Yi Teah, Yuichiro Kanematsu, and Yasunori Kikuchi. "Flow Simulation of Plastic Life Cycle Considering Carbon Renewability and Environmental Impact." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.159323.

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Renewable carbon sources, such as biomass and waste, are being explored as alternatives for sustainable plastic production. However, the significant uncertainties surrounding the environmental impact of biomass supply processes raise questions about whether these plastics positively contribute to society. Furthermore, the lack of systematic knowledge about plastics and incomplete understanding among stakeholders pose challenges to conducting comprehensive assessments and designing effective plastic life cycle systems. This study aims to clarify the carbon flow within the life cycle of biomass-
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Guan, Shiwei William. "Advanced 100% Solids Rigid Polyurethane Coatings Technology for Pipeline Field Joints and Rehabilitation." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03043.

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Abstract This paper describes an advanced 100% solids rigid (or structural) polyurethane technology for field-applied coating of pipeline girth welded joints and pipeline rehabilitation for oil/gas and water/wastewater transmission lines. This technology applies either a castable type resin or a sprayable resin in the field, and allows for encapsulating or coating of steel pipeline joints, or sections, in minutes under a wide variety of conditions. The key technical parameters and requirements associated with the technology for such field coating application are discussed. The lab and field-te
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Wittenbaum, M. Bruce. "Prevention and Salvage of Equipment from the Effects of Erosion/Corrosion by the Unconventional Use of Coatings." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87238.

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Abstract Erosion/corrosion (the effect of corrosion in a fluid flow/erosion environment) can be a devastating phenomenon. Usually the selection of materials of construction for a fluid system are made weighing the material performance against the cost; thus few systems are designed to last forever. Systems selected by material corrosion performance without investigation of the erosion contribution to deterioration can fail prematurely. A properly specified system can still deteriorate when the fluid flow becomes too fast or turbulence is present; simple things like surface roughness and lack o
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Makeev, Andrew, Dean Nguyen, Peter Mathews, Guillame Seon, Yuri Nikishkov, and Mark Robeson. "Analysis Methods Improving Confidence in Material Qualification for Laminated Composites." In Vertical Flight Society 72nd Annual Forum & Technology Display. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11598.

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Fiber-reinforced composite materials are increasingly used in rotorcraft structures to reduce weight and improve efficiency. A major challenge, delaying the implementation of recently developed higher-performance materials that offer improved mechanical strength and stiffness at a lower weight, is the lack of efficient common material qualification. The current standard practices are too costly and time-consuming. Due to low confidence in material allowables, the entire material qualification process, including numerous test methods and large test matrices, must be repeated for every seemingly
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Wuehrer, Karl H., and Renee Bynum. "Chemical Resistant Waterborne Polyurethane Topcoats for Flooring." In Paint and Coatings Expo (PACE) 2005. SSPC, 2005. https://doi.org/10.5006/s2005-00064.

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Abstract This paper gives an update on the latest developments of the new generation of waterborne Polyurethane Topcoats (PU topcoats) for flooring which were presented during the annual SSPC meeting October 20031. Topcoats are commonly used in the construction industry over functional floor coatings or as sealers for concrete. For many years solvent-borne polyurethane topcoats are the standard for flooring due to very good properties, mechanical and chemical, and application ease-of-use. However, the significant amounts of solvent act as volatile organic compounds (VOCs) and change in the VOC
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ul Haque, Ebad, Shaj K. Manjalivalapil, Mohammed A. Alrudayni, and Fouad A. Al-Sultan. "New Coating Technology to Resolve External Surface Casing Chronic Corrosion Challenge." In MECC 2023. AMPP, 2023. https://doi.org/10.5006/mecc2023-19874.

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Abstract Surface casing of wellheads encounters chronic external corrosion challenge due to aggressive exposure conditions. The possible causes of the corrosion damage are: a) Seepage of water from associated equipment such as surface piping and wellhead valves during various operations and maintenance on water related wells. b) Presence of highly saline and corrosive water close to surface in “Subkha” environment. c) Impediments to effective cathodic protection at shallow depths. To counter this challenge one of the measures undertaken is to have a robust coating system having good abrasion a
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Baranowski, Lauryn, Jeannine Elliott, Trudy Scholten, et al. "Organic Corrosion Inhibitors for the Prevention of Stress Corrosion Cracking in 5XXX-series Aluminum." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19223.

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Abstract We have developed a new coating to prevent the corrosion and cracking of marine grade aluminum. The key to this approach is a new class of corrosion inhibitors, developed using a combination of computational modeling and performance testing. These additives can prevent stress corrosion cracking (SCC) and intergranular corrosion (IGC) of sensitized 5XXX-series alloys. These additives are incorporated into an existing, commercially available marine-grade coating. This new chemistry uses active organic inhibitors that release slowly and continually from the coating, passivating the sensi
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Tamaronis, Edgardo. "Improvements in the Deflection Angle Allowed for Pipe, with an Operating Temperature below 50 °C, Coated with non-VOC Liquid Resin, at a Lower Thickness than Recommended for High Temperature." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00056.

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Abstract Currently all coat manufacturers show performances and properties of products in a datasheet, which show everyone of test and coating’s behavior under operating conditions related with the environment where it will be buried. This paper describes that client specified a coating thickness that Is below the minimun recommended by the product manufacturer in datasheet. It is crucial to note that this líquid epoxy resin (LBE) Novolac is intented for use at temperatures higher than those expected during operation and round approximately 50°C compared with the 150°C raised by the coating at
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Hassanin, Ahmed, Peter Yancey, Chris Alexander, Glenn Astolfi, Jeffrey Piascik, and Jeff Pavelka. "Surface and Defect Preparation Using Atmospheric Plasma for Non-Metallic Pipe Repair." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-18175.

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ABSTRACT Atmospheric Plasma Solutions Inc. (APS) partnered with ADV Integrity, Inc. to conduct a testing program to evaluate the impact of atmospheric plasma surface preparation on the performance of composite systems used to repair defects in transmission pipelines. The APS surface treatment system provides a portable solution for coating removal and functionalizes surfaces to increase adhesion of resins/epoxy/coatings to the underlying substrate. Composite repair systems’ performance relies heavily on the levels of adhesion between the initial layer of the composite system and the substrate.
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Reports on the topic "Lac Resin"

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Leong-Hau, Kirsty. Outgassing analysis on materials received resin bleed and lay-up. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1630989.

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Nash, C., M. Williams, M. Restivo, L. Hamm, and D. McCabe. SuperLig® 639 Resin Performance using 8 Molar LAW Feed. Office of Scientific and Technical Information (OSTI), 2016. http://dx.doi.org/10.2172/1332668.

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ชอุ่มพฤกษ์, ปิยะศักดิ์, นันทวัน หัตถมาศ, ปาลิตา แปวไธสง та มัลลิกา แก้วดี. โครงการวิจัยเรื่องโมเลกุลดีเอ็นเอเพื่อการพัฒนาการวิเคราะห์คุณภาพและความปลอดภัยแนวใหม่ในวัตถุดิบและอาหารแปรรูป : รายงานการวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 2009. https://doi.org/10.58837/chula.res.2009.40.

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ได้พัฒนาระบบห้องปฏิบัติการสมบูรณ์ที่เป็นนวัตกรรมที่เรียกว่า micro total analysis system (µ-TAS) หรือ Lab-on-a-chip เพื่อใช้ในการตรวจวิเคราะห์และรับรองคุณภาพของอาหารด้วยดีเอ็นเอตัวชิปประกอบไปด้วยส่วนทำปฏิกิริยาสำหรับการสกัดดีเอ็นเอและเพิ่มปริมาณ ส่วนช่องสารเคมีขนาดเล็ก สำหรับให้สารเคมีและตัวอย่างเข้าและออกจากระบบ ปริมาตรของส่วนทำปฏิกิริยา มีขนาด 7 ไมโครลิตร ดีเอ็นเอจะถูกตรึงไว้ในส่วนต้นของส่วนทำปฏิกิริยาด้วยสนามแม่เหล็ก การสกัดดีเอ็นเอจากอาหารอย่างรวดเร็วทำโดยการใช้สารละลายความเข้มข้นของเกลือ chaotopic สูง ควบคู่กับ silicon oxide resin ให้จับอยู่ในส่วนปฏิกิริยา ขณะเดียวกันดีเอ็นเอที่สกัดได้จะเพ
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DUNCAN, J. B. LAB STUDY ON REGENERATION OF SPENT DOWEX 21K 16-20 MESH ION EXCHANGE RESIN. Hanford Site (HNF), Richland, WA, 2007. http://dx.doi.org/10.2172/899762.

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CAIRNS, DOUGLAS S., and JON D. SHRAMSTAD. Evaluation of Hand Lay-Up and Resin Transfer Molding in Composite Wind Turbine Blade Manufacturing. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/760737.

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Medina Bejarano, Edwin Gilberto, Danila Michel Garzón Peralta, and Camilo Romero Espinosa. Caracterización mecánica de propiedades de un material compuesto por resina poliéster y fibras de preferencia natural. Escuela Tecnológica Instituto Técnico Central, 2023. http://dx.doi.org/10.55411/2023.11.

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Tomando conciencia del impacto ambiental generado por el uso de materiales sintéticos y los altos valores de energía involucrados en su extracción y procesamiento, el proyecto busca la caracterización, bajo normas técnicas, de materiales obtenidos por metodología de fabricación de adición de material, específicamente a través de la tecnología de impregnación de reciña y fibras . Para ello, no solo se obtendrá la caracterización de propiedades para el material base (resina poliéster), sino que obtendrán una metodología para elaborar piezas de material compuesto por resinas poliéster y fibras de
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Herrera-Muñoz, Stella María. Elaboración de provisionales de autocurado para prótesis parcial fija o coronas individuales. Ediciones Universidad Cooperativa de Colombia, 2020. http://dx.doi.org/10.16925/gcgp.29.

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Con esta guía para la elaboración de provisionales de autocurado para prótesis parcial fija o coronas individuales se espera tener una ruta clara para las prácticas de preclínica de los alumnos en modelos tipo Odonto, los cuales simulan las arcadas dentales de pacientes edéntulos parciales. La provisional es un dispositivo temporal que brinda a la estructura protección para la pulpa, restaura la función, la estabilidad y da la estética requerida por el paciente, ya que sirve para proyectar el tratamiento definitivo. Para la elaboración de la provisional de autocurado se debe considerar la morf
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Frankelius, Per. Delegationsresa till Israel med fokus foodtech och agtech. Linköping University Electronic Press, 2025. https://doi.org/10.3384/9789179294915.

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Den 15-19 maj 2022 medverkade Agtech 2030, genom undertecknad, i en delegationsresa till Israel. Resan var kulmen på olika aktiviteter under 3 års tid. En milstolpe skedde 2019 då vi fick ett brev från Israels ambassadör Ilan Ben-Dov, som resultat av en artikel vi hade skrivit på DN Debatt. Sedan dess har analyser och dialoger genomförts med tema Israel/Agtech. Syftet med resan som nu äntligen blev av var att ge ett keynoteföredrag, delta i diskussioner med svenska och israeliska företag samt göra studiebesök i innovationsmiljöer. Min roll var inte minst att identifiera samarbetsmöjligheter in
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Herrera-Muñoz, Stella María. Toma de patrones de núcleo de retenedores intrarradiculares. Ediciones Universidad Cooperativa de Colombia, 2023. http://dx.doi.org/10.16925/gcgp.126.

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El propósito de realizar la presente guía para la toma de patrones de núcleo de retenedores intrarradiculares es tener una ruta clara en las prácticas de preclínica de los alumnos en dientes tratados previamente con endodoncia; dichos tratamientos endodónticos se han realizado con anterioridad en la preclínica de endodoncia. El retenedor intrarradicular es un dispositivo definitivo de rehabilitación oral el cual brinda una integración entre el segmento radicular del diente y su reconstrucción coronal; los retenedores intrarradiculares deben tener medidas mínimas para cumplir con la biomecánica
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กาญจนทัต, อภิชาติ. โปรตีนไฮโดรไลเสตจากเมล็ดผลไม้ไทยเพื่อการบำบัดโรค : รายงานวิจัยฉบับสมบูรณ์ (ปีที่ 1). จุฬาลงกรณ์มหาวิทยาลัย, 2014. https://doi.org/10.58837/chula.res.2014.89.

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Blood pressure regulation is partially dependent on the renin-angiotensin system; renin acts on angiotensinogen to release angiotensin-I, which is further converted into the angiotensin II by the angiotensin I-converting enzyme (ACE). ACE plays a key physiological role in the regulation of blood pressure by virtue of two different reactions that it catalyzes: conversion of the inactive angiotensin I to the powerful vasoconstrictor angiotensin II, and inactivation of the vasodilator bradykinin. Crude extract and ammonium sulphate cut protein extracts, and their pepsin-pancreatin hydrolysates, f
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