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Статті в журналах з теми "Mangium wood"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Purwanto, Djoko. "PEMANFAATAN KAYU AKASIA MANGIUM (Acacia mangium Willd) UNTUK MEBEL." Jurnal Riset Industri Hasil Hutan 4, no. 1 (2012): 1. http://dx.doi.org/10.24111/jrihh.v4i1.1195.

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Анотація:

Timber Acacia mangium (Acacia mangium, Willd) for Furniture. The study aims to determine the mechanical and physical properties and the decorative value (color and fiber) wood of acacia mangium with using finishing materials. This type of finishing material used is ultran lasur natural dof ,ultran lasur classic teak, aqua politur clear dof, aqua politur akasia dan aqua politur cherry. After finishing the wood is stored for 3 months. Test parameters were observed, namely, physical and mechanical properties of wood, adhesion of finishing materials, color and appearance of the fiber, and timber d

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2

Nurhayati, Tjutju, Han Roliadi, and Nurliani Bermawie. "PRODUCTION OF MANGIUM (Acacia mangium) WOOD VINEGAR AND ITS UTILIZATION." Journal of Forestry Research 2, no. 1 (2005): 13–25. https://doi.org/10.20886/ijfr.2005.2.1.13-25.

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Анотація:

Production  of  wood vinegar from mangium <em>(</em><em>Acacia  </em><em>mangium</em><em>) </em>wood bolts/pieces  with their diameter of 3  17 cm, length of 30  67 cm, moisture content of 84.4%, and specific gravity of 0.52 conducted in a dome-shaped kiln with 1.2 m'-capacity afforded a yield of 40.3%.   The mangium wood vinegar was produced  through condensation  (cooling) of  smoke/gas fractions released during the charcoaling (carbonization) process  of  mangium wood.    The  process  could be reg

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3

Rahayu, Istie, Wayan Darmawan, Deded Sarip Nawawi, Esti Prihatini, Rohmat Ismail, and Gilang Dwi Laksono. "Physical Properties of Fast-Growing Wood-Polymer Nano Composite Synthesized through TiO2 Nanoparticle Impregnation." Polymers 14, no. 20 (2022): 4463. http://dx.doi.org/10.3390/polym14204463.

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Анотація:

Mangium (Acacia mangium Willd.) is a fast-growing wood that is widely grown in Indonesia. The impregnation method is needed to improve the qualities of the wood. In this study, TiO2 nanoparticle (79.17 nm) was produced using the hydrothermal method. The purpose of this study was to analyze the effect of TiO2 nanoparticle impregnation on the density and dimensional stability of mangium and the effectiveness of the presence of TiO2 nanoparticle in wood in degrading pollutants. The mangium samples (2 cm × 2 cm × 2 cm) were placed inside impregnation tube. The impregnation solutions included water

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4

Arsad, Effendi. "SIFAT FISIK DAN KEKUATAN MEKANIK KAYU AKASIA MANGIUM (Acacia mangium Willd) DARI HUTAN TANAMAN INDUSTRI KALIMANTAN SELATAN." Jurnal Riset Industri Hasil Hutan 3, no. 1 (2011): 20. http://dx.doi.org/10.24111/jrihh.v3i1.1184.

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Анотація:

Acacia Mangium wood can to used for substitution comercial wood. Materiel Acacia mangium woods was take from HTI at seven age with diameter 30 – 33 cm. The results Physical properties and mechanical strength obtained by the water content of dry air from 13.78 to 14.89%; density of 0.60 to 0.62 gr/cm3; specific gravity of 0.59 to 0.61; compressive strength parallel fibers from 319.54 to 361.70 Kg/cm2; compressive strength perpendicular to fiber 117-197 kg/cm2; bending strength (MOR) from 509.25 to 680.50 kg/cm2; cleave strength 80.25 to 110.90 kg/cm2; tensile strength of 98.27 to 133.03 kg/cm2;

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5

Hidayati, Fanny, Ramadhani Ayu Purnama, Harry Praptoyo, and Sri Sunarti. "Pengaruh Kecepatan Pertumbuhan terhadap Sifat Fisika dan Mekanika Kayu Acacia Mangium Umur 4 Tahun Asal Wonogiri, Jawa Tengah." Jurnal Ilmu Kehutanan 12, no. 2 (2018): 248. http://dx.doi.org/10.22146/jik.40162.

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Анотація:

Kebutuhan masyarakat akan kayu solid yang semakin meningkat, memberikan peluang bagi jenis pohon cepat tumbuh seperti Acacia mangium untuk digunakan sebagai bahan semi konstruksi maupun konstruksi. Secara umum, kualitas kayu dipengaruhi oleh sifat pertumbuhan terutama kecepatan pertumbuhan. Pengaruh kecepatan pertumbuhan terhadap sifat-sifat kayu mangium belum banyak di diteliti. Oleh karena itu, penelitian ini bertujuan untuk mengetahui sifat fisika dan mekanika kayu mangium pada kecepatan tumbuh yang berbeda serta hubungan antara kerapatan dasar dengan sifat-sifat lain yang diuji. Sembilan p

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6

Diba, Farah, and Lolyta Sisillia. "The Effect of Traditional Fumigation on Physical, Mechanical and Anatomical Properties of Wooden Handicraft in West Kalimantan." Wood Research Journal 10, no. 2 (2020): 39–47. http://dx.doi.org/10.51850/wrj.2019.10.2.39-47.

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Анотація:

West Kalimantan wooden craft is internationally well known and its export is increasing. Currently, high durability and attractive color of wood material such as belian (Eusideroxylon zwageri Teysm & Binnend) is rarely available, then alternatively mangium (Acacia mangium Willd.) and laban wood (Vitex pubescens Vahl.) are used for handicraft. Fumigation is one possible way to improve wood service life and color shades. This paper determines the impact of traditional fumigation on wood raw material on physical, mechanical and anatomical properties. The timber fumigation technique was conduc

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7

Hendrik, Jessica, Yusuf Sudo Hadi, Muh Yusram Massijaya, Adi Santoso, and Byung-Dae Park. "Penetration and Adhesion Strength of Phenol-Tannin-Formaldehyde Resin Adhesives for Bonding Three Tropical Woods." Forest Products Journal 68, no. 3 (2018): 256–63. http://dx.doi.org/10.13073/fpj-d-17-00032.

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Abstract Phenol-tannin-formaldehyde (PTF) resins were prepared by adding bark tannin extracts from mangium (Acacia mangium) to phenol-formaldehyde (PF) resin adhesive. The resultant resin was used for bonding wood from three fast-growing tropical species, specifically, mangium, jabon (Anthocephalus cadamba), and mindi (Melia azedarach). The impact of the tannin extract content on the penetration and adhesion strength of PTF resin adhesives was studied for two different tannin contents (10% and 20%). The resin penetration into wood tissues of the three species was quantitatively measured at the

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8

Hadi, Yusuf Sudo, Dede Hermawan, Imam Busyra Abdillah, Mahdi Mubarok, Wa Ode Muliastuty Arsyad, and Rohmah Pari. "Polystyrene-Impregnated Glulam Resistance to Subterranean Termite Attacks in a Laboratory Test." Polymers 14, no. 19 (2022): 4003. http://dx.doi.org/10.3390/polym14194003.

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This study aimed to enhance tropical fast-growing tree species’ resistance to subterranean termite (Coptotermes curvignathus) attacks through the manufacturing of polystyrene glued-laminated timber (glulam). Three young tropical wood species, namely manii (Maesopsis eminii), mangium (Acacia mangium), and rubber-wood (Hevea brasiliensis), were cut into laminae. After drying, the laminae were impregnated with styrene monomer, then polymerized using potassium peroxydisulfate as a catalyst and heat. The polystyrene-impregnated laminae were constructed using isocyanate glue and a cold press for thr

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9

Syahidah and Tekat Dwi Cahyono. "STABILISASI DIMENSI KAYU DENGAN APLIKASI PARAFIN CAIR." PERENNIAL 4, no. 1 (2008): 18. http://dx.doi.org/10.24259/perennial.v4i1.178.

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Wood is a special material which can swell and shrink with the change of environmental humidity. The aim of this research was to enhance the dimensional stability of wood. Clear specimens of jackfruit wood (Artocarpus heterophyllus) ) measuring 15 cm (L) x 2 cm (R) x 2 cm (T) and mangium wood (Acacia mangium Wild.) measuring 5 cm (L) x 5 cm (R) x 5 cm (T) were prepared for treatment. The samples were firstly soaked in a liquid paraffin with 0% concentration (100% kerosene soluble), 33.3 %, 66,6% and 100%. All samples were then vacuumed for 1 hour and soaked in water for 24 hours. Results indic

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10

Pratiwi, Setiani Rahma, Lusyiani Lusyiani, and Trisnu Satriadi. "PRODUKTIVITAS DAN RENDEMEN CUKA KAYU DAN ARANG MANGIUM (Acacia mangium) DI KELOMPOK TANI HUTAN ALIMPUNG DESA TIWINGAN LAMA." Jurnal Sylva Scienteae 3, no. 4 (2020): 747. http://dx.doi.org/10.20527/jss.v3i4.2358.

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This study aimed to analyze the productivity and yield of Mangium Wood Vinegar and Charcoal in the Forest Farmer Group Alimpung in Tiwingan Lama Village. The method used to determine productivity is to calculate the amount of raw materials and total time. The yield is measured by counting the amount of raw material and wood vinegar or charcoal produced. The results showed that the average productivity of acacia wood vinegar was 0.037 kg / hour and acacia wood charcoal was 0.230 kg / hour. The processing process produces a yield 7.500% wood vinegar and 46.089% wood charcoal. The productivity of

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11

Semple, K. E., R. B. Cunningham, and P. D. Evans. "Cement Hydration Tests Using Wood Flour may not Predict the Suitability of Acacia mangium and Eucalyptus pellita for the Manufacture of Wood-Wool Cement Boards." Holzforschung 53, no. 3 (1999): 327–32. http://dx.doi.org/10.1515/hf.1999.053.

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Summary Wood-wool cement boards (WWCBs) are manufactured in many tropical countries which have extensive eucalypt and acacia plantations. Wood from such plantations could act as a potential raw material for WWCBs, but the suitability of most tropical eucalypts and acacias for the manufacture of such products is unknown. This study was undertaken to assess whether the standard laboratory test for wood-cement compatibility, which measures heat of hydration in wood flour-cement mixtures, is an appropriate method for screening tropical eucalypts and acacias for their compatibility with cement and

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12

Hariz, Tengku Muhammad Renzy, Yusuf Sudo Hadi, Muhammad Adly Rahandi Lubis, Muhammad Iqbal Maulana, Rita Kartika Sari, and Wahyu Hidayat. "Physical and Mechanical Properties of Cross-Laminated Timber Made of a Combination of Mangium-Puspa Wood and Polyurethane Adhesive." Jurnal Sylva Lestari 11, no. 1 (2023): 37–65. http://dx.doi.org/10.23960/jsl.v11i1.645.

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Анотація:

This study aimed to evaluate the physical and mechanical properties of cross-laminated timber (CLT) characteristics from mangium (Acacia mangium) and puspa (Schima wallichii) woods and their combination using polyurethane (PU 1.2) adhesives. The manufacture of CLT began with basic adhesive characterization and thermo-mechanical analysis. Wood material’s physical and chemical properties were also tested with its response to the PU 1.2 wettability. The CLT (100 ´ 30 ´ 3.60) cm3 was manufactured with 160 g/m2 glue spread at a pressure of 0.80 MPa for 200 minutes. The CLT panels were characterized

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13

Priadi, T., W. Suhailiyah, and L. Karlinasari. "The Resistance of Heat-Modified Fast Growing Woods Against Decay Fungi." IOP Conference Series: Earth and Environmental Science 891, no. 1 (2021): 012009. http://dx.doi.org/10.1088/1755-1315/891/1/012009.

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Abstract Fast growing woods from plantations forest generally have low quality and require improvement to resist degrading organisms. This study aimed to evaluate the resistance of heat-modified sengon, jabon, mangium, and short rotation teak woods against decay fungi. Heat treatment was applied at two different temperatures (150 °C and 180 °C) and for three different times (0, 2, and 6 hours). The decay resistance test used white rot (Schizophyllum commune Fr) and brown rot (Tyromyces palustris) fungibased on modified SNI 01-7207-2014 standard. The chemical analysis of heat-modified wood used

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14

Karlinasari, Lina, Merry Sabed, Nyoman J. Wistara, Aris Purwanto, and Hari Wijayanto. "Karakteristik Spektra Absorbansi NIR (Near Infra Red) Spektroskopi Kayu Acacia mangium WILLD pada 3 Umur Berbeda." Jurnal Ilmu Kehutanan 6, no. 1 (2014): 45. http://dx.doi.org/10.22146/jik.3310.

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Penelitian mengenai pengujian nondestruktif metode near infrared (NIR) spektroskopi di Indonesia masih sangat terbatas. Penelitian ini bertujuan untuk menentukan karakteristik spektra NIR spektroskopi (panjang gelombang 700 nm – 2500 nm) kayu Acacia mangium dari 3 umur yaitu 5, 6, dan, 7 tahun. Kayu mangium diperoleh dari daerah Maribaya, Parung Panjang, Bogor. Sampel contoh uji spektra terdiri dari bentuk solid atau padatan dan bentuk serbuk kayu. Hasil penelitian menunjukkan spektra absorban NIR sampel padatan kayu lebih tinggi dibandingkan bentuk sampel serbuk. Umur pohon untuk jenis kayu y

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15

Wahab, R., I. N. S. Ahmad Mazalan, M. T. Mustafa, A. R. Mojiol, and M. S. Rasat. "Improvement in Durability of Oil Heat Treated 16-Year-Old Acacia mangium in Laboratory Tests." Journal of Agricultural Science 9, no. 6 (2017): 251. http://dx.doi.org/10.5539/jas.v9n6p251.

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Анотація:

Improvement in the durability of oil heat treated Acacia mangium through accelerated laboratory tests was studied. A. mangium logs of 16-year-old harvested and segregated into the bottom, middle, and top portions. These were oil-heat treated in a stainless steel tank with oil palm oil as a heating medium at temperatures 180, 200 and 220 °C for the duration of 30, 60 and 90 minutes respectively. The wood samples dried and grounded into sawdust, air-dried again before undergoing durability tests. Accelerated 12 weeks laboratory durability studies conducted on the treated A. mangium. Fungi of Pyc

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16

Baskara, Muhammad Iqbal Adi, Doni Hapsoro, Muhammad Iqbal Maulana, et al. "Physical and Mechanical Properties of Oriented Strand Board from Three Species of Plantation Forests at Various Resin Contents." Jurnal Sylva Lestari 10, no. 1 (2022): 49–62. http://dx.doi.org/10.23960/jsl.v10i1.519.

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The objective of this study was to determine the physical and mechanical properties of oriented strand board (OSB) from three wood species of plantation forests, i.e., Afrika (Maesopsis eminii), mangium (Acacia mangium), and sengon (Paraserianthes falcataria) at various resin contents. OSB was made with a shelling ratio (face:core:back) of 1:2:1 and a target density of 0.6 g/cm3. Methylene diphenyl di-isocyanate (MDI) adhesive was used with 3%, 5%, and 7% resin contents. The physical and mechanical properties were evaluated based on JIS A 5908:2003 standard and the values were compared with CS

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17

Nurhayati, Tjutju, Han Roliadi, and Nurliani Bermawie. "Production of Mangium (Acacia mangium) Wood Vinegar and its Utilization." Indonesian Journal of Forestry Research 2, no. 1 (2005): 13–25. http://dx.doi.org/10.20886/ijfr.2005.2.1.13-25.

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18

Tamer, Tabet A., Fauziah Abdul Aziz, and Radiman Shahidan. "A Study of the Nanostructure of the Cellulose of Acacia mangium Wood by X-Ray Diffraction and Small-Angle X-Ray Scattering." Advanced Materials Research 364 (October 2011): 480–84. http://dx.doi.org/10.4028/www.scientific.net/amr.364.480.

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The purpose of this study was to develop practical and reliable small-angle x-ray scattering and x-ray diffraction methods to study the nanostructure of the wood cell wall and to use these methods to systematically study the nanostructure of Acacia mangium wood grown in Sabah, Malaysia. Methods to determine the microfibril angle (MFA) distribution, the crystallinity of wood, and the average size of cellulose crystallites were developed and these parameters were determined as a function of the tree age and the distance from pith towards the bark. The mean MFA in Acacia mangium increases rapidly

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19

Olaga, Thomas Tetteh, Kwaku Antwi, Francis Kofi Bih, and Mark Bright Donkor. "NATURAL DURABILITY OF Acacia mangium WOOD." Nativa 12, no. 1 (2024): 179–83. http://dx.doi.org/10.31413/nat.v12i1.16910.

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ABSTRACT: Expanding the base of wood resources, adoption, and effective use of wood species depend primarily on the knowledge of the properties of the wood and the source from which the wood was obtained. The Acacia mangium wood, whose natural durability was determined to establish its practical uses, was extracted from Ada Technical Institute's compound in the Ada East District of the Greater Accra Region of Ghana. The study adopted an experimental research design. The natural durability test was done using the accelerated laboratory method based on standard. Seventy-two (72) samples were tak

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20

HADI, Yusuf Sudo, Muh Yusram MASSIJAYA, Imam Busyra ABDILLAH, Gustan PARI, and Wa Ode Muliastuty ARSYAD. "Color Change and Resistance to Subterranean Termite Attack of Mangium (Acacia mangium) and Sengon (Falcataria moluccana) Smoked Wood." Journal of the Korean Wood Science and Technology 48, no. 1 (2020): 1–11. http://dx.doi.org/10.5658/wood.2020.48.1.1.

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21

Rahayu, Istie, Wayan Darmawan, Deded Sarip Nawawi, et al. "Surface Modification of Fast-Growing Wood with a Titanium-Dioxide-Based Nanocoating to Improve Weathering Resistance." Coatings 13, no. 11 (2023): 1924. http://dx.doi.org/10.3390/coatings13111924.

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Анотація:

Acacia mangium requires the addition of a finishing material to increase its resistance to weathering. Herein, the effectiveness of a nanocoating containing titanium dioxide nanoparticles (TiO2-NPs) as a finishing material for mangium wood was investigated. The coating material formulations used were oil-based (V1) and water-based (V2) varnishes with TiO2-NP concentrations of 1% (CT1), 5% (CT5), and 10% (CT10) (w/v). The uncoated and coated samples were subjected to weathering periods of 0, 2, and 4 months. The results showed that the addition of TiO2 nanoparticles to the V1 and V2 varnishes r

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22

Priyono, Dwi Joko, Surjono Surjokusumo, Yusuf S. Hadi, and Naresworo Nugroho. "Equations of the Sum of Shear Connector on the Double Shear Connection Strength using Different Connector Materials." Wood Research Journal 4, no. 1 (2017): 81–86. http://dx.doi.org/10.51850/wrj.2012.3.2.81-86.

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Анотація:

Mangium wood from the timber estate have been developed continuously in an effort to reach the fulfilling of wood fiber and construction material needs to replace role of timber from the natural forests which has been decreased. Timber connection requires a connector such as bolt that can distribute both the load of wood to wood and the compression or tensile stress through all the connections. Bearing slip is a connector that is inserted into a hole in the wood, which bears pressure and shear. Bolted connection is the most commonly used because it is easy to apply, even though it is less effi

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23

Savero, Alvin Muhammad, Jong-Ho Kim, Byantara Darsan Purusatama, Denni Prasetia, Se-Hwi Park, and Nam-Hun Kim. "A Comparative Study on the Anatomical Characteristics of Acacia mangium and Acacia hybrid Grown in Vietnam." Forests 13, no. 10 (2022): 1700. http://dx.doi.org/10.3390/f13101700.

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This study aimed to investigate and compare the qualitative and quantitative anatomical characteristics of Acacia mangium and Acacia hybrid in plantation forests in Vietnam. The qualitative and quantitative anatomical characteristics were evaluated according to the International Association of Wood Anatomists list of microscopic features for hardwood identification. In terms of qualitative features, A. mangium had a rough, hard, and fissured bark surface with a golden brown to dark brown color, whereas A. hybrid had a smooth and slightly scaly bark surface with greenish brown to greyish brown

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24

Kardiansyah, Teddy, and Susi Sugesty. "Pengaruh Alkali Aktif terhadap Karakteristik Pulp Kraft Putih Acacia mangium dan Eucalyptus pellita." JURNAL SELULOSA 10, no. 01 (2020): 9. http://dx.doi.org/10.25269/jsel.v10i01.291.

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Анотація:

Industri pulp Indonesia saat ini memiliki masalah dalam penyediaan bahan baku kayu Acacia mangium, karena serangan penyakit tanaman dan hama. Hal ini harus diantisipasi melalui bahan baku alternatif pengganti Acacia mangium, spesies Eucalyptus pellita dipilih karena lebih tahan terhadap hama dan penyakit. Penelitian ini dilakukan untuk mengetahui karakteristik kualitas pulp kraft putih E. Pellita. Penelitian pembuatan pulp kertas dilakukan dengan proses kraft dengan bahan baku A. mangium dan E. pellita. Pemasakan dilakukan dengan variasi alkali aktif 16-20%, sulfiditas 28,7%, pada suhu 165 °C,

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25

JHT, Admin. "POTENSI PEREKAT TANIN FENOL FORMALDEHIDA KULIT KAYU MANGIUM (Potency of Tannin Formaldehyde Adhesive from Acacia mangium Bark)." HUTAN TROPIKA 10, no. 2 (2019): 43–48. http://dx.doi.org/10.36873/jht.v10i2.59.

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Анотація:

ABSTRACTBark waste of Acacia mangium could to produce the tannin formaldehyde adhesive that useful as material to the wood working industrial. These material are produced from timber estate of Acacia mangium that widely planted in Sumatera and Kalimantan, and also in the other place, because this species is the fast growing species and relatively easy to grow at the marginal site. Acacia mangium bark was predicted 10% of the logs. The study was aimed to determine the quantity of tannin formaldehyde from Acacia mangium bark that could be developed for the adhesive. The study showed that potency

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26

De Melo, Loretta Ennes Sabóia, Jhonis Bentes Silva, Claudete Catanhede Do Nascimento, Antonio Gilberto Ferreira, and Maria da Paz Lima. "Identification of phenolic compounds and their relationship to the natural resistance of wood from Dipteryx polyphylla Huber and Acacia mangium Willd." International Journal for Innovation Education and Research 8, no. 12 (2020): 471–80. http://dx.doi.org/10.31686/ijier.vol8.iss12.2860.

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Flavonoids are the phenolic compounds that are predominant in the Fabaceae family, and isoflavonoids are especially recognized for their contribution to the natural resistance of wood from species of this family. Herein, we investigated the phenolic compounds from extracts of wood residues from the Fabaceae species Dipteryx polyphylla Huber and Acacia mangium Willd. A phytochemical study of D. polyphylla led to isolation and identification of isoflavans such as 3’,7-dihydroxy-4'-methoxy-isoflavan (1), 2’,8-dihydroxy-4’,7-dimethoxy-isoflavan (2), 2’,7-dihydroxy-4’-methoxyisoflavan (3) and 3’,8-

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27

Sharma, S. K., S. R. Shukla, and M. Sujatha. "PHYSICAL AND MECHANICAL EVALUATION OF 8-YEARS-OLD ACACIA HYBRID (Acacia mangium x A. auriculiformis) CLONES FOR VARIOUS END USES." Indonesian Journal of Forestry Research 5, no. 2 (2018): 95–102. https://doi.org/10.59465/ijfr.2019.5.2.95-102.

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Анотація:

Currently, clonal of forest tree is gaining importance due to the yield improvement and low variability in different wood characteristics. Hybrid trees from clonal forest are importantly characterized in term of wood quality for finding suitable uses. Accordingly, three clones (HD3, K47, H4) of 8-year-old Acacia hybrid (Acacia mangium × A. auriculiformis) were evaluated for inter-clonal comparison of its wood quality by evaluating their physical and mechanical properties as per Indian Standards. All tree clones were studied at breast high including diameter, heartwood content, and physical and

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Sharma, S. K., S. R. Shukla, and M. Sujatha. "PHYSICAL AND MECHANICAL EVALUATION OF 8-YEARS-OLD ACACIA HYBRID (Acacia mangium x A. auriculiformis) CLONES FOR VARIOUS END USES." Indonesian Journal of Forestry Research 5, no. 2 (2018): 95–102. https://doi.org/10.59465/ijfr.2018.5.2.95-102.

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Анотація:

Currently, clonal of forest tree is gaining importance due to the yield improvement and low variability in different wood characteristics. Hybrid trees from clonal forest are importantly characterized in term of wood quality for finding suitable uses. Accordingly, three clones (HD3, K47, H4) of 8-year-old Acacia hybrid (Acacia mangium × A. auriculiformis) were evaluated for inter-clonal comparison of its wood quality by evaluating their physical and mechanical properties as per Indian Standards. All tree clones were studied at breast high including diameter, heartwood content, and physical and

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29

Wahab, Razak, Ros Syazmini M. Ghani, Hashim W. Samsi, and Mohd Sukhairi M. Rasat. "Changes in Colour, Strength and Chemical Properties of Oil Heat Treated 18-Years Old Planted Acacia mangium." International Journal of Biology 9, no. 3 (2017): 12. http://dx.doi.org/10.5539/ijb.v9n3p12.

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Анотація:

This study was carried to investigate changes in the oil heat treated 18-years old of planted Acacia mangium. Harvested trees segregated into bottom, middle and top portions containing heartwood and sapwood were oil heat treated in stainless tank with palm crude oil as heating medium at temperatures of 180oC, 200oC and 220oC for 30, 60 and 90 minutes respectively. The evaluation of the changes in the wood were performed by standards using a Minolta Chroma Meter, TAPPI Standard T204 om-88, TAPPI Standard T203 cm-99, TAPPI Standard T222 cm-02, and BS EN 310:1993 static bending tests. The relatio

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30

Savero, Alvin Muhammad, Jong Ho Kim, Byantara Darsan Purusatama, et al. "Characterization of Anatomical and Non-Anatomical Properties for the Identification of Six Commercial Wood Species from Vietnamese Plantation Forests." Forests 14, no. 3 (2023): 496. http://dx.doi.org/10.3390/f14030496.

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Анотація:

This study investigated the anatomical and non-anatomical characteristics of six wood species, Acacia mangium, Acacia hybrid, Dillenia pentagyna, Anacardium occidentale, Hevea brasiliensis, and Melaleuca cajuputi, from a plantation in Vietnam. The anatomical characteristics and non-anatomical characteristics were observed following the International Association of Wood Anatomists (IAWA) list. All species showed diffuse porosity and non-septate fibers. Exclusively solitary vessels were only observed in M. cajuputi. Vestured pits were observed in A. mangium, A. hybrid, and M. cajuputi, and tylos

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31

Lukmandaru, Ganis, Vendy Eko Prasetyo, and Widyanto Dwi Nugroho. "Inorganic Elements of Mangium Stem (Acacia mangium Willd) from Different Provenanc." Wood Research Journal 6, no. 2 (2021): 54–61. http://dx.doi.org/10.51850/wrj.2015.6.2.54-61.

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Анотація:

This study aimed to investigate the ash content and concentrations of inorganic elements present in the stem of Acacia mangium. The tree samples (24 years) were collected from five different provenances (Sidei, West of Morehead, Daintree, Ellerbeck, and El Arish). Meanwhile, the disc samples were obtained from the trunk of each tree on the lower parts. The samples were collected from four radial positions (bark, sapwood, outer heartwood, inner heartwood), and the ash and insoluble acid contents were determined. Furthermore, the concentration of 5 elements (Ca, Mg, Fe, Mn, K, and Na) was measur

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32

Palle, Ismawati, Valeritta Lodin, Ag Ahmad Mohd Yunus, et al. "Effects of NCO/OH Ratios on Bio-Based Polyurethane Film Properties Made from Acacia mangium Liquefied Wood." Polymers 15, no. 5 (2023): 1154. http://dx.doi.org/10.3390/polym15051154.

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The compatibility between isocyanate and polyol plays an important role in determining a polyurethane product’s performance. This study aims to evaluate the effect of varying the ratios between polymeric methylene diphenyl diisocyanate (pMDI) and Acacia mangium liquefied wood polyol on the polyurethane film properties. A. mangium wood sawdust was liquefied in polyethylene glycol/glycerol co-solvent with H2SO4 as a catalyst at 150 °C for 150 min. The A. mangium liquefied wood was mixed with pMDI with difference NCO/OH ratios to produce film through the casting method. The effects of the NCO/OH

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33

Úrbez-Torres, J. R., F. Castro-Medina, S. R. Mohali, and W. D. Gubler. "Botryosphaeriaceae Species Associated With Cankers and Dieback Symptoms of Acacia mangium and Pinus caribaea var. hondurensis in Venezuela." Plant Disease 100, no. 12 (2016): 2455–64. http://dx.doi.org/10.1094/pdis-05-16-0612-re.

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Several species in the Botryosphaeriaceae family cause wood stain, cankers, and dieback of trunks and branches in a wide range of forest tree species. The aim of this study was to characterize the botryosphaeriaceous fungi associated with decline symptoms observed in Acacia mangium and Pinus caribaea var. hondurensis, two economically important forest tree species grown in commercial plantations in Venezuela. Fungi isolated from symptomatic samples collected from both hosts in commercial sites were identified based on their morphology and DNA sequences of the internal transcribed spacer region

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34

Reyes Moreno, Giovanni, Juan Carlos Barrientos Fuentes, and Enrique Darghan Contreras. "Economic efficiency of biochar as an amendment for Acacia mangium Willd. plantations." Agronomía Colombiana 40, no. 1 (2022): 120–28. http://dx.doi.org/10.15446/agron.colomb.v40n1.96330.

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Biochar is a product of pyrolysis obtained from any type of biomass and can be used as a soil amendment or conditioner, improving the physical, chemical, and biological properties of the soil. Additionally, it can serve as an alternative to the application of synthetic fertilization in forest species such as Acacia mangium Willd. This research was oriented towards the determination of the economic efficiency of the use of biochar in A. mangium compared to the use of synthetic fertilizers. Production costs of wood and by-products, income and profits from forestry, economic efficiency of capital

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35

Hamdan, S., Y. L. Liew, and Z. A. Talib. "STUDIES OF MONOMER IMPREGNATION AND POLYMERIZED “IN-SITU” IN WOOD USING DYNAMIC MECHANICAL THERMAL ANALYZER (DMTA)." ASEAN Journal on Science and Technology for Development 25, no. 1 (2017): 137–47. http://dx.doi.org/10.29037/ajstd.237.

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Анотація:

Some tropical hardwoods (acacia mangium, madhuca utilis, dacrydium spp., dipterocarpus spp.,dyera costulata, shorea spp., shorea gibbosa, shorea macrophylla, endospermum diadenum, cratoxylum arborescens) are selected and impregnated with methyl methacrylate (MMA) and polymerized “in-situ” by using catalyst-heat technique. Treatability of the wood as determinedfrom the fractional volumetric retentions of monomer i.e. fraction of voids filled by the impregnant showed that the mean retention range from 15.03% (acacia mangium) to 56.59% (cratoxylum arborescens). The penetration of monomer evaluate

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36

Masendra, Ikumi Nezu, Futoshi Ishiguri, et al. "Variations of growth and wood traits in standing trees of the third-generation Acacia mangium families in Indonesia." Silvae Genetica 72, no. 1 (2023): 150–62. http://dx.doi.org/10.2478/sg-2023-0016.

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Анотація:

Abstract The breeding of a fast-growing tree species, Acacia mangium Willd. has entered the third-generation cycle in Indonesia. To fulfill timber industry needs, wood traits, as well as growth traits, should be improved by conducting appropriate tree breeding programs for this species. In the present study, growth and wood traits were measured for the 10-year-old third-generation A. mangium from 40 half-sib families originating from four sub-lines from two provenances. The mean values of ten families in each sub-line ranged from 17.7 to 21.8 cm for stem diameter, 14.3 to 16.2 m for tree heigh

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37

Ambrose, Elia, Ismail Jusoh, Alik Duju, and Norsyarina Welman. "Effects of incision, forced-air drying, and pressure pretreatments on wet pockets, drying rate, and drying defects of Acacia mangium wood." BioResources 17, no. 1 (2022): 1643–58. http://dx.doi.org/10.15376/biores.17.1.1643-1658.

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The pretreatment of 7- and 10-year-old Acacia mangium wood using incision, forced-air dying, and pressure were conducted to evaluate the effects on wet pockets, the drying rate, and drying defects. Quarter and rift sawn boards were used in this study. Results showed that the incidence of wet pockets in the incised, forced-air drying, and pressure-treated quarter and rift sawn boards of 7-year-old A. mangium alleviated up to 35% and 79%, 60% and 54%, and 54% and 82%, respectively. In 10-year-old A. mangium, the occurrence of wet pockets was reduced by 68% and 60%, 31% and 73% and 82% and 73% in

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38

Cossid, Rey Naldoza, Jan Michael Ampong Torralba, John Harold Merantes Clemente, Chary Joyce Gabriel Villaflor, Catherine Mhae Buctuan Jandug, and Cornelio Sacquiap Casilac Jr. "Bending Strengths of Large-leaf Mahogany (Swietenia macrophylla King) and Mangium (Acacia mangium Willd) Commercial Lumbers in Northeastern Mindanao, Philippines." Jurnal Sylva Lestari 13, no. 1 (2025): 317–31. https://doi.org/10.23960/jsl.v13i1.1072.

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Анотація:

Large-leaf mahogany (Swietenia macrophylla King) and mangium (Acacia mangium Willd) have been the preferred wood for furniture and cabinets for ages. S. macrophylla is famous around the world for the wood it provides. This study investigated the bending strength (modulus of rupture (MOR) and modulus of elasticity (MOE)) of S. macrophylla and A. mangium commercially available lumbers sold at roadside lumber dealers in northeastern Mindanao (Provinces of Agusan del Norte, Agusan del Sur and Misamis Oriental), Philippines. Four lumbers were acquired for each species in every province. A total of

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39

Sunarti, S., A. Nirsatmanto, J. Brawner, et al. "EFFECT OF GENETIC GAIN IN DIAMETER AND WOOD DENSITY ON ADVANCED GENERATION BREEDING STRATEGY OF ACACIA MANGIUM IN INDONESIA." JOURNAL OF TROPICAL FOREST SCIENCE 34, no. 1 (2022): 92–102. http://dx.doi.org/10.26525/jtfs2022.34.1.92.

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Анотація:

Breeding of Acacia mangium in Indonesia was initially focused on selection for improving growth and stem form. Changes in wood density which resulted from selection for improved growth was impacted by adverse correlation between the both traits. This study aimed to quantify genetic gain in the diameter and wood density from two A. mangium breeding generations and to use this information in developing breeding strategy to improve both traits simultaneously. Materials were obtained from 4.5-year-old trees in a progeny trial consisting of families from first (F-1) and second (F-2) generations alo

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40

SHARMA, ARVIND, GUNJAN DHIMAN, PRITI S. LAL, RAVI D. GODIYAL, and BIPIN P. THAPLIYAL. "CHARACTERISATION OF MORINGA OLEIFERA (DRUMSTICK) WOOD FOR PULP AND PAPER MAKING." Cellulose Chemistry and Technology 55, no. 3-4 (2021): 255–62. http://dx.doi.org/10.35812/cellulosechemtechnol.2021.55.25.

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"Moringa oleifera (drumstick) wood was evaluated in terms of its chemical composition, morphological features, Kraft pulping behavior, ECF bleaching and mechanical strength properties – important parameters for pulp and paper making – in comparison with Acacia mangium. Moringa oleifera was found to have the following composition: holocellulose 65.5%, lignin 20.5%, pentosan 11.6%, -cellulose 40.5% and extractives content of 5.15%, which made it comparable with the Acacia mangium wood sample. The alkali prehydrolysis of Moringa oleifera was carried out using 2% NaOH at 150 °C. The prehydrolysis

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41

Alamsyah, Eka Mulya, Yoyo Suhaya, Sutrisno, Yayat Hidayat, Takashi Tanaka, and Masaaki Yamada. "Investigation of the adhesion performance of some fast-growing wood species based on their wettability." Open Agriculture 6, no. 1 (2021): 392–99. http://dx.doi.org/10.1515/opag-2021-0013.

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Abstract The objective of this study was to investigate the adhesion performance of eight fast-growing wood species, namely, Enterolobium cyclocarpum, Paraserianthes falcataria, Shorea sp., Toona sinensis, Gmelina arborea, Pinus merkusii, Acacia mangium, and Acacia hybrid obtained from the tropical region. The wettability test was conducted by contact angle measurement, while the adhesion performance was expressed by strength retention (SR) and wood failure (WF) percentages through block shear tested under the Japanese Agricultural Standard (JAS). Results showed that smaller contact angle for

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42

Dungani, Rudi, Sulistyono Sulistyono, Tati Karliati, et al. "Analysis Behavior of Openings on Full-Size Cross-Laminated Timber (CLT) Frame Shear Walls Tested Monotonically." Forests 14, no. 1 (2023): 97. http://dx.doi.org/10.3390/f14010097.

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Walls, as components of the lateral-force-resisting system of a building, are defined as shear walls. This study aims to determine the behavior of shear wall panel cross-laminated-timber-based mangium wood (Acacia mangium Willd) (CLT-mangium) in earthquake-resistant prefabricated houses. The earthquake performance of CLT mangium frame shear walls panels has been studied using monotonic tests. The shear walls were constructed using CLT-mangium measuring 2400 mm × 1200 mm × 68 mm with various design patterns (straight sheathing, diagonal sheathing/45°, windowed shear wall with diagonal pattern a

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43

Hadi, Yusuf Sudo, Dede Hermawan, Ignasia Maria Sulastiningsih, et al. "Color Change and Physical-Mechanical Properties of Polystyrene-Impregnated Glulam from Three Tropical Fast-Growing Wood Species." Forests 12, no. 10 (2021): 1420. http://dx.doi.org/10.3390/f12101420.

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The aims of this work were to determine the color change and physical–mechanical properties of polystyrene glulam from three tropical wood species. Wood laminas were cut from logs harvested from a young plantation forest of manii (Maesopsis eminii), mangium (Acacia mangium), and rubber-wood (Hevea brasiliensis). The laminas were impregnated with monomer styrene that was polymerized using potassium peroxy-disulfate as a catalyst and heat. Three-layer glulam was constructed from the polystyrene laminas, using isocyanate glue and cold press. For comparison purposes, three-layer untreated glulam a

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44

Putri, Melysa, and Shalsyabila Poeni. "Perbandingan Kandungan Selulosa dan Lignin dari Kayu Acacia crassicarpa dan Acacia mangium." REACTOR: Journal of Research on Chemistry and Engineering 1, no. 1 (2020): 12. http://dx.doi.org/10.52759/reactor.v1i1.3.

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The development of the pulp & paper industries in Indonesia increase every year. To support the development of industries in Indonesia in order to be able to compete with similar industries from abroad, it is very important to pay attention to the quality of the paper produced. One way to determine the quality of the pulp & paper is by knowing the chemical composition and area where the wood grows. Important chemical compositions that can support the strength of wood and paper quality include cellulose and lignin. Therefore, this study was conducted to compare the levels of cellulose a

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Hadi, Yusuf Sudo, Elis Nina Herliyana, Desy Mulyosari, Imam Busyra Abdillah, Rohmah Pari, and Salim Hiziroglu. "Termite Resistance of Furfuryl Alcohol and Imidacloprid Treated Fast-Growing Tropical Wood Species as Function of Field Test." Applied Sciences 10, no. 17 (2020): 6101. http://dx.doi.org/10.3390/app10176101.

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Анотація:

In general fast-growing tree species harvested at a young age has substantial amount of sapwood. It also contains juvenile wood, which has undesirable inferior physical and mechanical properties. Having sapwood and juvenile wood in the trees makes them very susceptible to be attacked by biological deterioration specifically termites in a tropical environment. The main objective of this study was to investigate the termite resistance of four fast-growing Indonesian wood species treated with furfuryl alcohol and imidacloprid. Wood specimens from sengon (Falcataria moluccana), jabon (Anthocephalu

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46

Longui, Eduardo Luiz, Israel Luiz de Lima, Maurício Ranzini, et al. "Wood chemical characterization of Acacia mangium and Calophyllum brasiliense grown in plantation." Research, Society and Development 13, no. 12 (2024): e147131246685. https://doi.org/10.33448/rsd-v13i12.46685.

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This study aimed to characterize and compare the physical and chemical properties of wood from 15-year-old Acacia mangium and 16-year-old Calophyllum brasiliense plantation trees. Specific data is provided on basic density, extractives, holocellulose, lignin, ash content and the highest heating value, as well as the linear correlations between them were performed. We observed similar mean values of basic density, despite statistical differences were found in lignin and holocellulose contents. The results for the higher heating value (19.5 kJ kg−1) were noteworthy, as they are positively associ

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47

Barros, Samia Valéria dos Santos, Claudete Catanhede do Nascimento, and Celso Paulo de Azevedo. "CARACTERIZAÇÃO TECNOLÓGICA DA MADEIRA DE TRÊS ESPÉCIES FLORESTAIS CULTIVADAS NO AMAZONAS: ALTERNATIVA PARA PRODUÇÃO DE LENHA." FLORESTA 42, no. 4 (2012): 725. http://dx.doi.org/10.5380/rf.v42i4.22514.

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ResumoAs espécies florestais Acacia mangium, Inga edulis e Tachigalia chrysophyllum foram pré-selecionadas para utilização em plantios energéticos. Com o objetivo de caracterizar essas espécies, foram realizados testes a partir das variáveis densidade básica, poder calorífico e análise imediata. O experimento foi implantado na Estação Experimental da EMBRAPA no município de Iranduba/AM. O delineamento foi em blocos ao acaso com três repetições, perfazendo 9 parcelas compostas de 25 plantas cada. Foram retiradas cinco árvores dentre as nove centrais da área útil. Destas, foram retirados os disc

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48

Chu, Tran Van, Pham Thi Thu Thuy, Vu Van Loi, and Francesco Vitali. "Longhorn beetles from postharvest woods in Vietnam." Ecologica Montenegrina 80 (November 28, 2024): 38–45. http://dx.doi.org/10.37828/em.2024.80.4.

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This study surveyed longhorn beetles in harvested woods in Hoa Binh and Vinh Phuc provinces, Vietnam. Seven harvested wood species were examined after having detected the presence of longhorn beetles: Acacia mangium Willd. Acacia hybrid, Chukrasia tabularis A. Juss., Eucalyptus urophylla Blake, Eucalyptus hybrid, Pinus caribaea Morelet and Pinus massoniana Lamb. Eucalyptus hybrid and P. massoniana were the most commonly attacked trees with 23.9–26.7% of damaged logs and 2.36–3.25 holes/log. Eight cerambycid species were reared: viz. Acalolepta vitalisi (Pic, 1925) and Coptops annulipes (Gahan,

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49

Lodin, Valeritta, Paridah Md Tahir, Ag Ahmad Mohd Yunus, and Ismawati Palle. "Effect of isocyanate index on shear strength plywood properties using Acacia mangium polyurethane-based adhesive." BIO Web of Conferences 73 (2023): 05033. http://dx.doi.org/10.1051/bioconf/20237305033.

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Polyurethane adhesive for wood bonding were prepared from the mixture of Acacia mangium (AM) polyol and 4,4’-methylene diphenyl diisocynate (pMDI). In this study, Acacia mangium polyurethane (AMPU) adhesives were prepared by polymerization between pMDI and AM polyol. Various NCO/OH ratios of AMPU adhesives were used to fabricate 3-ply plywood from Eucalyptus wyrai veneers. The effect of different NCO/OH ratios: 1:4, 1:6, 1:8, 2:0, 2:2, 2:4 and 2:6 on lap shear strength and chemical resistance in cold water, hot water, sulfuric acid solution (pH2) and sodium hydroxide solution (pH12) were studi

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50

Abdul Khalil, H. P. S., Irshad-ul-Haq Bhat, and Khairul B. Awang. "Preliminary study on enhanced properties and biological resistance of chemically modified Acacia spp." BioResources 5, no. 4 (2010): 2720–37. http://dx.doi.org/10.15376/biores.5.4.2720-2737.

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Анотація:

A preliminary experimental study was carried out to examine the ability of a chemically modified Acacia spp. to resist biodegradation. The modifications of Acacia mangium and Acacia hybridwere carried out by propionic anhydride and succinic anhydride in the presence of sodium formate as a catalyst. The treated samples were found resistant to microbial attack, while the untreated ones were damaged on 12 months exposure to a soil burial. The appearance grading, mass loss, mechanical properties, and scanning electron microscopy results revealed that chemical modification enhances the resistance o

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