Judul: Pengaruh Kombinasi Tebal dan Orientasi Sudut Lamina Terhadap Karakteristik Cross Laminated Timber Kayu Jabon Menggunakan Paku
Abstrak: Cross Laminated Timber is a multi-layer wooden panel made of boards. Each layer of boards is placed cross-wise to the adjacent layers for increased rigidity and stability. The objectives of this research are to determine the effect of lamination board thickness combination and angle orientation to characteristic of Cross Laminated Timber from jabon wood using nails. Value of density, moisture content, and swelling volume Cross Laminated Timber from jabon wood affected by interaction of laminated board thickness combination and angle orientation. While shrinkage volume just affected by thickness combination and angle orientation. Value of density Cross Laminated Timber range from 0,33 g/cm³ to 0,51 g/cm³ and value of moisture content range from 12,88% to 18,25%. Combination of 1,67-1,67-1,67 cm thickness combination and 90° angle orientation had lower value for volume swelling and shrinkage volume, respectively 2,82% and 3,31%. Modulus of elasticity, modulus of rupture, lateral resistance, and shear strength of nails Cross Laminated Timber from jabon wood affected by interaction of laminated board thickness combination and angle orientation. Higher value of Modulus of elasticity present in combination of 2-1-2 cm thickness combination and 0° angle orientation, it was 12121 kg/cm². Modulus of rupture of combination A3B1 had highest value, it was 255 kg/cm². Combination of 1,67-1,67-1,67 cm thickness combination and 60° angle orientation had higher value of lateral resistance and shear strength of nail. Results of dimensional stability, MOE, and MOR, panel of 1,67-1,67-1,67 cm thickness combination and 45° angle orientation are best CLT panel.
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Judul: Pengaruh Kombinasi Tebal dan Orientasi Sudut Lamina Terhadap Karakteristik Cross Laminated Timber Kayu Nangka Menggunakan Perekat Isosianat
Abstrak: Cross Laminated Timber is a multi-layer wooden panel made of lumber. Each layer of boards is placed cross-wise to the adjacent layers for increased rigidity and stability. The objectives of this research are to determine the effect of lamination board thickness combination and angle orientation to characteristic of Cross Laminated Timber from nangka wood (Arthocarpus heterophyllus) using isosianat adhesive. The average of density, moisture content, volumetric swelling , volumetric shrinkage, delamination of cold water, and delamination of hot water are 0.60 g/cm3, 14.59% , 3,63%, 2,84%, 0,50%, 16,00% , respectively. And then for MOE, MOR, Shear Strength, and Compression Strength are 59156 kg/cm2, 274 kg/cm2, 263 kg/cm2, 22,2 kg/cm2 , respectively.
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Judul: Infeksi Virus Parainfluenza Pada Anjing
Abstrak: Virus parainfluenza anjing termasuk famili Paramyxoviridae, berbentuk pleomorf dengan ukuran bervariasi (bergaris tengah antara 100-500 nm), berpembungkus peka ether, berisi genom RNA dan secara serologis mempunyai kesamaan dengan virus SV-5 kera; dikenak sebagai salah satu kausa penting dari sindrom "kennel cough". Infeksinya dapat mengenai anjing semua umur yang belum pernah terinfeksi atau mendapatkan vaksinasi mengakibatkan gejala klinis ringan yang terbatas pada traktus respirasi atu infeksi yang secara klinis tidak memperlihatkan gejala nyata. Gejala klinis yang nampak setelah masa inkubasi (1-5 hari) terlewati berupa batuk yang tidak berat selama beberapa hari, berbagai tingkat tonsilitis dan pharyngitis dan kadang-kadang ditemukan kenaikan temperatur rektal antara 1-2 derajat C dari temperatur normal rat-rata. Anjing terinfeksi mengandung virus pada traktus respirasi bagian atas dan bawah serta limfonoduli sampai hari ke 9 setelah infeksi. Penyebaran virus antar anjing terjadi secara aerogen.
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