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Готові списки джерел за темами / Resin yield

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Добірка наукової літератури з теми "Resin yield"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Resin yield"

1

Gajšek, Domen, Miha Brecelj, Kristjan Jarni, and Robert Brus. "Resin yield of Pinus nigra and Pinus sylvestris in the Slovenian Karst." Acta Silvae et Ligni 115 (2018): 21–28. http://dx.doi.org/10.20315/asetl.115.2.

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Анотація:

The aim of our research was to study the impact of various environmental factors on the resin production of pines in the Slovenian Karst. Five plots were established % three in Pinus nigra (Arnold) stands and two in Pinus sylvestris (L.) stands. On each plot, the 19-20 most vigorous dominant or codominant trees with a minimum diameter at breast height (DBH) of 20 cm were selected and their resin yield analysed in 2012. Resin yield in P. nigra was considerably higher than that in P. sylvestris. The average resin yield per tree during the study period of 102 days was 1.144 kg for P. nigra and 0.

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2

Madrigal, Javier, Cristina Carrillo-García, Aida Rodríguez-García, et al. "Prescribed underburning before resin tapping does not affect resin yield in Pinus pinaster Ait. stands." Forest Systems 34, no. 1 (2025): 20952. https://doi.org/10.5424/fs/2025341-20952.

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Aim of study: To assess the effect of prescribed underburning (PB) and tapping on resin yields in maritime pine stands. We hypothesized that PB reduces fire hazard, generates stress at the cambium level and potentially increases the number of resin canals and resin yield after tapping. Area of study: Northern Plateau of the Iberian Peninsula, central-eastern Spain. Material and methods: Six 50 m x 50 m plots were established in a Pinus pinaster Ait. stand, three of which were burned and tapped in 2018 and three controls plots (tapped only). Resin yield was monitored in 90 trees over four years

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3

Yang, Huanxin, Junjie Shi, Lin Chen, et al. "A Study of the Effects of Stimulants on Resin Yield, Resin Duct and Turpentine Chemical Composition in Pinus kesiya var. langbianensis." Forests 15, no. 5 (2024): 748. http://dx.doi.org/10.3390/f15050748.

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This study presents a comprehensive examination of Pinus kesiya var. langbianensis (Pinus kesiya var. langbianensis), the primary resin-extraction tree species in Yunnan Province, China. In this study, we formulated different concentration gradients of 0.25%, 0.5%, 1%, and 2% of diquat solution as tapping stimulant to test the effect of different concentrations on the resin gain rate of Pinus kesiya, and analyzed the relationship between anatomical structure, major chemical composition of turpentine and resin yield by methods such as wood anatomy and chemical composition analysis of turpentine

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4

Palma, Amélia, João Miguel Pereira, and Paula Soares. "Short Communication. Resin tapping activity as a contribution to the management of maritime pine forest." Forest Systems 25, no. 2 (2016): eSC11. http://dx.doi.org/10.5424/fs/2016252-08925.

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Aim of the study: In this work potential resin yield in a region of high forest ability where maritime pine is the main species was estimated in order to understand the viability of promoting resin exploitation.Area of study: This study was conducted in Castro Daire County in central region of Portugal.Material and methods: To quantify the resin yield of trees tapped for the first time two plots were installed in a maritime pine stand with average tree age 65 years. Before the beginning of the resin tapping, dendrometric tree variables were measured. Also, in a neighbouring stand, 25 trees wer

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5

Li, Zhengchun, Zijing Zhou, Qiandong Hou, Luonan Shen, Hong Zhao, and Xiaopeng Wen. "Physiological, Proteomic, and Resin Yield-Related Genes Expression Analysis Provides Insights into the Mechanisms Regulating Resin Yield in Masson Pine." International Journal of Molecular Sciences 24, no. 18 (2023): 13813. http://dx.doi.org/10.3390/ijms241813813.

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Masson pine (Pinus massoniana Lamb.) is an important resin-producing conifer species in China. Resin yield is a highly heritable trait and varies greatly among different genotypes. However, the mechanisms regulating the resin yield of masson pine remain largely unknown. In this study, physiological, proteomic, and gene expression analysis was performed on xylem tissues of masson pine with high and low resin yield. Physiological investigation showed that the activity of terpene synthase, as well as the contents of soluble sugar, jasmonic acid (JA), methyl jasmonate (MeJA), gibberellins (GA1, GA

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6

Tadesse, W., F. J. Auñón, J. A. Pardos, L. Gil, and R. Alía. "Early testing of resin yield in Pinus pinaster Ait." Forest Systems 10, no. 1 (2001): 141–50. http://dx.doi.org/10.5424/717.

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Анотація:

Micro-chipping was carried out in a clonal bank of Pinus pinaster with 17 clones and 69 ramets and 10 control (non grafted trees) trees. The micro-chipping consisted on the tapping of an area of 2.5 square cm above the graft union, every two weeks. Six tapping were made during the 3 months of the maximum resin yield (June, July and August). A high clonal heritability value (h2 = 0,501) for resin yield was computed. This demonstrates that more than 50 % of clonal resin yield variation is due to genetic factors. Moderately strong correlation was recorded between resin yield of the ortets and the

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7

Prasad, Niranjan, S. Sharma, S. Pandey, and Amit Kar. "Effect of Freshening Tools and Freshening Intervals on Resin Yield from Pinus caribaea using Bore Hole Method of Resin Tapping." Journal of Non Timber Forest Products 22, no. 1 (2015): 1–6. http://dx.doi.org/10.54207/bsmps2000-2015-8c66xq.

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Different types of freshening tools developed were evaluated in actual field conditions for resin tapping from Pinus caribaea trees. The developed tools were user friendly. The tools were evaluated for freshening holes made for tapping resin using bore hole technique from P. caribaea. Use of all the developed freshening tools led to increase in resin yield over control. Out of different freshening tools developed and tested, hand operated augur type tool showed appreciable increase in resin yield up to the third freshening and is recommended for use in the resin tapping operation of bore hole

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8

Rawat, Anita, S. Barthwal, and H. S. Ginwal. "Association mapping for resin yield in Pinus roxburghii Sarg. using microsatellite markers." Silvae Genetica 63, no. 1-6 (2014): 253–66. http://dx.doi.org/10.1515/sg-2014-0033.

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Abstract Association mapping is a method for detection of gene effects based on linkage disequilibrium (LD) that complements QTL analysis in the development of tools for molecular plant breeding. A total of 240 genotypes of Pinus roxburghii (Himalayan Chir Pine) from a natural population in Chakrata division (Tiunee range), Uttarakhand (India) were evaluated for resin yield. Based on the phenotypic data and stable resin production in consecutive years, 53 genotypes were selected after excluding the individuals with similar resin production. The selected 53 individuals were best representatives

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9

Martínez-Galván, Fredy, Julio César Buendía-Espinoza, Elisa del Carmen Martínez-Ochoa, Selene del Carmen Arrazate-Jiménez, and Rosa María García-Núñez. "Sustainable Management of Bursera bipinnata: Relationship Between Environmental and Physiological Parameters and Resin Extraction." Forests 16, no. 5 (2025): 801. https://doi.org/10.3390/f16050801.

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Copal is a non-timber forest product of historical, cultural, and industrial significance in Mexico. The use of unsustainable harvesting methods and a lack of understanding of the factors influencing their production have led to a decline in natural populations of resin-producing species. This study aimed to identify the dendrometric, edaphoclimatic, physiological, and resin extraction method variables with the greatest influence on resin yield in Bursera bipinnata using correlation analysis and multiple linear regression. The research was conducted in the Los Sauces micro-watershed, Morelos,

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10

Rawat, Anita, S. Barthwal, H. S. Ginwal, and S. B. Tripathi. "Association mapping for identification of ISSR and AFLP markers linked with resin yield in Himalayan Chir Pine (Pinus roxburghii Sarg." Silvae Genetica 64, no. 1-6 (2015): 220–39. http://dx.doi.org/10.1515/sg-2015-0021.

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Анотація:

AbstractIn Pinus roxburghii, marker-trait associations were studied for resin yield using a set of 238 DNA based markers derived from 9 ISSR and 5 AFLP primer pairs. A total of 240 genotypes of P. roxburghii from a natural population in Chakrata division (Tiunee range), Uttarakhand (India) were evaluated for resin yield. Based on stable resin production in consecutive years, 53 genotypes that were best representatives of the variation in resin yield (0.25 to 8.0 kg/tree/year) were used for genotyping and association analysis. For carrying out the association studies, two approaches were used.

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Більше джерел

Дисертації з теми "Resin yield"

1

Pereira, João Miguel Ramos. "Estimativa do potencial produtivo de resina em pinheiro bravo no concelho de Castro Daire." Master's thesis, ISA/UL, 2015. http://hdl.handle.net/10400.5/9224.

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2

Foyer, Gabriel. "Synthèse de résines phénoliques bio-sourcées sans formaldéhyde pour l’industrie aérospatiale." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2015. http://www.theses.fr/2015ENCM0021/document.

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Анотація:

Les résines phénoliques de type résole présentent des propriétés applicatives et thermiques adaptées à l'élaboration de matériaux composites pour l'industrie aérospatiale. En particulier, ces résines peuvent être polymérisées en plusieurs étapes et présentent des propriétés de charbonnement très élevées. Seulement, ces résines sont principalement synthétisées à partir de formaldéhyde et de phénol. Ces précurseurs sont classés Cancérigène Mutagène Reprotoxique (CMR) respectivement de catégorie 1B et 2 et sont issus de ressources pétrolières. Du fait de cette classification CMR et de la raréfact

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3

Neels, Sabine. "Yield, sustainable harvest and cultural uses of resin from the copal tree (Protium copal: Burseraceae) in the carmelita community forest concession, Petén, Guatemala." Thesis, 2000. http://hdl.handle.net/2429/10724.

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Анотація:

A three-part study was conducted on Protium copal (Burseraceae) in the lowland tropical forests of northern Guatemala with the principle objective of providing preliminary data for the potential exploitation of its resin. Part one investigated the potential resin yield of an area within the Carmelita Community Forest Concession (CCFC), in the department of Peten, by tapping copal trees for sixteen weeks using two tapping methods (Tl and T2). A selection of environmental and biological variables was recorded. Part two monitored the tapped trees and a sample of untapped copal trees within

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Частини книг з теми "Resin yield"

1

Jia, Zehui, Lingwei Xu, Shuangkai Huang, Haoran Xu, Zhimo Zhang, and Xu Cui. "Preparation and Impact Resistance of Carbon Fiber Reinforced Metal Laminates Modified by Carbon Nanotubes." In Lecture Notes in Civil Engineering. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1260-3_27.

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AbstractFiber reinforced metal laminates (FMLs) are a kind of interlaminar hybrid composites made of metal sheets and fibers alternately stacked and cured at a certain pressure and temperature. In this paper, through the simulation of ABAQUS finite element software and recording the change of projectile velocity, the energy loss of projectile is calculated and the impact resistance is judged. Through the comparison of three groups of simulation experimental results, the energy absorbed by carbon fiber reinforced metal laminate is about 300 times that of aluminum alloy plate, which fully shows

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2

Ella, Arsenio B. "The interaction of rainfall, tree diameter and sulphuric-acid treatments on resin yield of Palosapis (Anisoptera thurifera (Blanco) Blume ssp. thurifera)." In Monographiae Biologicae. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1685-2_22.

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3

Webster, Dean C. "Bio-based Polymers and Resins in Paints and Coatings." In Bioplastics and Biocomposites. Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/bk9781788010085-00249.

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Paints and coatings have been used for millennia for decoration and protection of materials. Prior to the advent of the petrochemical industry, binders for paints and coatings were of necessity based on naturally occurring materials such as shellac, oriental lacquers, and vegetable oils. As petrochemicals became available, resins based on vegetable oils such as varnishes and alkyd resins were introduced. Cellulosic materials could also be made that served well as coating materials. While petrochemical resin systems were introduced and quickly grew to supplant many of the bio-based resin system

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4

Brown, Michelle. "Moisture-Related Failure of Plastics." In Characterization and Failure Analysis of Plastics. ASM International, 2022. http://dx.doi.org/10.31399/asm.hb.v11b.a0006929.

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Abstract This article provides an overview of the physics and math associated with moisture-related failures in plastic components. It develops key equations, showing how they are used to analyze the causes and effects of water uptake, diffusion, and moisture concentration in polymeric materials and resins. It explains how absorbed moisture affects a wide range of properties, including glass transition temperature, flexural and shear modulus,creep, stress relaxation, swelling, tensile and yield strength, and fatigue cracking. It provides relevant data on common polymers, resins, and fiber-resi

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5

Tang, Qiuyu, Yahua Chen, Huizhi Gao, et al. "Bio-Based Epoxy Resin from Epoxidized Soybean Oil." In Soybean - Biomass, Yield and Productivity. IntechOpen, 2019. http://dx.doi.org/10.5772/intechopen.81544.

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6

"Cone Yield and Resin Productivity of Siberian." In Pine Forests. CRC Press, 2006. http://dx.doi.org/10.1201/9781482280371-8.

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7

Terrett, Nicholas K. "Other solid phases." In Combinatorial Chemistry. Oxford University PressOxford, 1998. http://dx.doi.org/10.1093/oso/9780198502203.003.0003.

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Abstract Unlike the synthesis of compound libraries on resin beads, the use of other solid phases such as multipoint and laminar solid phases can be generally described as spatially addressable combinatorial methods. Usually, the compounds made on these supports are discrete, single, and made simultaneously by an efficient combinatorial method. During screening, the library will yield information instantly on individual components, the identity of the compounds being determined by their spatial position within the library array. This is not to say that resin bead-based synthesis cannot be used

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8

STIERHOF, YORK-DIETER, HEINZ SCHWARZ, MARKUS DÜRRENBERGER, WERNER VILLIGER, and EDWARD KELLENBERGER. "Yield of Immunolabel Compared to Resin Sections and Thawed Cryosections." In Colloidal Gold. Elsevier, 1991. http://dx.doi.org/10.1016/b978-0-12-333929-4.50010-2.

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9

Srinivasan, Rashmita, and Siraj Sayyed. "Assessment of Thermal Conductivity of M25 Grade Cement Concrete with Wax and Resin Based Curing Compounds." In Frontiers of Advancements in Materials | IoT | Drones | and Innovations in Construction Environment | and Infrastructure. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/nbennurfach20.

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The current research looks at the thermal conductivity of M25 grade cement concrete with wax and resin curing compounds. For the experiment, an M25 grade mixture comprised of cement, sand, and aggregates in a 1:1:2 ratio is used, with the curing chemical purchased locally. The cement concrete specimen is created utilizing the standard thermal conductivity set-up specifications of 25 mm diameter and 28 mm depth. Curing chemicals spread soon after casting and the removal of water from the specimen surface. Upon the successful completion of the experimentation, it has been observed that the wax a

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10

"Cone Yield, Growth, and Resin Productivity of Siberian Stone Pine under Experimentally." In Pine Forests. CRC Press, 2006. http://dx.doi.org/10.1201/9781482280371-9.

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Тези доповідей конференцій з теми "Resin yield"

1

Helfand, D., and K. Barrett. "A Resin Manufacturer’S Use of Accelerated and Field Tests: Methods and Data Utilization." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92326.

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Abstract Raw material suppliers to the coatings industry perform accelerated tests on relatively simple formulations to determine if improvements have been achieved relative to controls. Though these tests yield valid relative rankings among systems, they cannot substitute for long-term testing under actual conditions. Commonly used accelerated test methods and data are discussed in this report.

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2

Darden, Winn, Bob Parker, Naoko Sumi, Isao Kimura, Masakazu Ataku, and Takashige Maekawa. "New Water-Based Fluoropolymer Resins for Ultra-Weatherable Coatings." In Paint and Coatings Expo (PACE) 2009. SSPC, 2009. https://doi.org/10.5006/s2009-00008.

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Abstract Fluoropolymer resins find widespread use as building blocks for ultra-weatherable coatings. Fluoroethylene vinyl ether (FEVE) resins were developed to overcome some of the problems associated with the application of standard fluoropolymer coatings. FEVE resins, which yield topcoats with expected lifetimes exceeding 60 years, can be cured at ambient temperatures for field application, or at elevated temperatures in the shop. In order to allow coating manufacturers to conform to government regulations on solvents, water-based FEVE resins were developed several years ago. The original wa

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3

Vogel, Erin, Gary Wieber, Adam Tomasik, and Yanxiang Li. "Highly Durable Solventborne Silicone Organic Hybrid for Protective Coating Applications." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17537.

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Abstract In high-performance protective coating applications, traditional systems often require three distinct layers of different composition/formulation for optimal protection of the structure against degradation. Polyurethane topcoats have been widely used as high performance and durable coatings in these applications; however, they typically contribute little to corrosion protection and therefore are not useful as primers. In these applications, a two-coat system providing similar performance as the three-coat system would yield labor and material savings as well as reduced environmental i

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4

Stoner, Kevin J., George L. Cahen, and Glenn E. Stoner. "The Cathodic Polarization of Graphite Fiber-Polymer Matrix Composites in Natural Seawater as a Means of Slowing Their Rate of Mechanical Deterioration." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86289.

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Abstract Fiber reinforced composite materials are gradually replacing high strength alloys in specialized applications. Due to their low density, they have a special advantage in air, space and defense applications. Graphite fiber composites containing 40 w/o fiber with an average diameter of 8 m typically have a specific resistivity on the order of 1-10 ohm cm. Such resistivity values are low enough for the composite to be considered for electrochemical applications. Instron universal testing and SEM observational analysis have shown that DC cathodic polarization can effectively slow the rate

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5

Darden, Winn, and Bob Parker. "Advances in Fluoropolymer Resins for Long Life Coatings." In Paint and Coatings Expo (PACE) 2010. SSPC, 2010. https://doi.org/10.5006/s2010-00011.

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Abstract Fluoroethylene vinyl ether (FEVE) resins were developed to overcome some of the problems associated with the use of fluoropolymers in coatings. These resins, which yield topcoats with lifetimes exceeding 60 years, can be cured at ambient temperatures for field applications, or at elevated temperatures in the shop. New FEVE resins have been developed to enable formulators to meet air quality regulations while still producing coatings with excellent durability. These include solid resins, which can be solubilized with VOC and HAPS exempt solvents, water emulsions, and water dispersions.

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6

Kelley, Don, and Rafic Moubarac. "Fiberglass-Reinforced Plastic (FRP) Chemical Resistance in 100°C (212°F) Wet Chlorine Gas and Anolyte." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03615.

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Abstract As manufacturers increase the operating temperature of chlorine production to improve yields, the service life of traditional fiberglass-reinforced plastic (FRP) gas ductwork has decreased by as much as 50%. The purpose of this paper is to report the results of a pilot plant investigation of FRP laminates exposed to chlorine gas and anolyte produced by membrane cells operating at 100°C (212°F). Materials demonstrating potential for longer service life in ongoing case studies were chosen for the pilot plant study. This investigation was conducted to compare laminates made with the vari

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7

Wanat, Stan F., M. D. Rahman, Balaji Narasimhan, Douglas S. McKenzie, and Michelle M. Cook. "High-yield resin fractionation using a liquid/liquid centrifuge." In Microlithography 2000, edited by Francis M. Houlihan. SPIE, 2000. http://dx.doi.org/10.1117/12.388336.

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8

Pandini, Stefano, Fabio Bignotti, A. D’Amore, Domenico Acierno, and Luigi Grassia. "Strain Recovery Behavior Of Post-Yield Deformed Epoxy Resins: Effect Of The Resin∕Hardener Ratio." In V INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP) AND COMPOSITES. AIP, 2010. http://dx.doi.org/10.1063/1.3455600.

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9

GALLEGOS, IVAN, JOSHUA KEMPPAINEN, SAGAR U. PATIL, PRATHAMESH DESHPANDE, JACOB GISSINER, and GREGORY ODEGARD. "MECHANICAL PROPERTIES PREDICTION OF PHENOLIC RESIN: A MOLECULAR DYNAMICS STUDY." In Thirty-sixth Technical Conference. Destech Publications, Inc., 2021. http://dx.doi.org/10.12783/asc36/35850.

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Анотація:

Carbon-carbon composites (CCCs) widely used in the aerospace and automotive industries due to their excellent mechanical and thermal properties. Phenolic resins have a relatively high carbon yield, which makes them a suitable candidate for CCCs manufacturing. Molecular Dynamics (MD) can further reduce costs by predicting properties of a material before manufacturing and testing. In the present work, a Molecular Dynamics (MD) model of a crosslinked phenolic resin was developed to predict mechanical properties by implementing the fix bond/react algorithm in LAMMPS. The predicted mass density (ρ)

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10

Kvasyuk, E. I., Y. N. Gretskaya, V. I. Yaroshevich, and M. А. Khancheuski. "SYNTHESIS OF SECO-DERIVATIVES OF ADENOSINE AND URIDINE." In SAKHAROV READINGS 2022: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2022. http://dx.doi.org/10.46646/sakh-2022-1-212-216.

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The effectiveness of the different methods for transformation of the natural ribonucleosides adenosine 16 and uridine 17 into its nucleoside dialdehydes 18 and 19 was studied. NaIO4 and anion exchange resin Dowex 1x2 (100-200 mesh) in IO4_-form were used as a regents. The nucleoside dialdehydes 18 and 19 were obtained with the yield 70-83%. It was shown that the reaction of periodate oxidizing of ribonucleosides with anion exchange resin in IO4_-form has preference to the method which used NaIO4. Reaction of dialdehydes 18 and 19 with NaBH4 results in formation of nucleosides trioles 20 and 21

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Звіти організацій з теми "Resin yield"

1

Rimdusit, Sarawut. Comparative study on flexibility enhancement of polybenzoxazine using epoxy and urethane prepolymers. Chulalongkorn University, 2004. https://doi.org/10.58837/chula.res.2004.73.

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The flexibility of polybenzoxazine (BA) can substantially be improved by alloying with IPDI-based urethane prepolymers (PU) or with flexible epoxy (EPO732). The experimental results, i.e. flexural testing and dynamic mechanical analysis, reveal that flexibility of the rigid polybenzoxazine and the PU or th EPO732 alloys systematically increases with the amount of both tougheners due to the added flexible molecular segments in the polymer hybrids. The curing temperature of the benzoxazine resin at about 225 degree celcius shifts to a higher value when the fraction of BA in both resin mixtures d

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2

Castellano, Mike J., Abraham G. Shaviv, Raphael Linker, and Matt Liebman. Improving nitrogen availability indicators by emphasizing correlations between gross nitrogen mineralization and the quality and quantity of labile soil organic matter fractions. United States Department of Agriculture, 2012. http://dx.doi.org/10.32747/2012.7597926.bard.

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Анотація:

A major goal in Israeli and U.S. agroecosystems is to maximize nitrogen availability to crops while minimizing nitrogen losses to air and water resources. This goal has presented a significant challenge to global agronomists and scientists because crops require large inputs of nitrogen (N) fertilizer to maximize yield, but N fertilizers are easily lost to surrounding ecosystems where they contribute to water pollution and greenhouse gas concentrations. Determination of the optimum N fertilizer input is complex because the amount of N produced from soil organic matter varies with time, space an

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Rimdusit, Sarawut, Nitinat Suppakarn, and Chanchira Jubsilp. Effect of triphenylphosphate flame retardant on properties of polybenzoxazines : Research Report. Chulalongkorn University, 2011. https://doi.org/10.58837/chula.res.2011.97.

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Анотація:

To enhance flame retardancy of polybenzoxazines, non-halogenated phosphorus compound has been evaluated for its potential flame retardant. In this research, the resulting flame retardanted polybenzoxazines were prepared by mixing phosphorus flame retardant with three types of arylamine-based benzoxazine resins. Their fire resistance, thermal, and mechanical properties were investigated. The weight ratios of benzoxazine resins/TPP were varied to different phosphorus content. DSC results indicated that, in the presence of TPP, the onset and maximum temperature of the exothermic peak due to the r

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