Volume 7, Number 1 (1961)

Original Articles

Takeshi SADOH
Studies on the Sorption of Water Vapour by Wood Hemicellulose. III. Heat of Adsorption.     1

Takeshi SADOH
Studies on the Sorption of Water Vapour by Wood Hemicellulose. IV. Swelling and Dissolving.     4

Hiroshi MIYAJIMA
Comparison Between Ball and Cylinder Methods for Testing Hardness of Wood. (in English)     8

Akira SAKAKIBARA, Nobuko NAKAYAMA
Hydrolysis of Lignin with Dioxane and Water. I. Formation of Cinnamic Alcohols and Aldehydes. (in English)     13

Akira SAKAKIBARA, Tadashi ARAKI
Studies on Hydrogenolysis of Lignin. III. Selection of Catalysts for Obtaining Phenols.     19

Tsuyoshi FURUYA
Detection of Internal Wood Defects by Radio Isotopes. I . Energy Distribution of Gamma-Rays and Beta-Excited X-Rays Transmitted Through Wood Media. (in English)     24

Sigeru KADITA, Tadashi YAMADA, Masaharu SUZUKI
Studies on Rheological Properties of Wood. I. Effect of Moisture Content on the Dynamic Young’s Modulus of Wood.     29

Sigeru KADITA, Tadashi YAMADA, Masaharu SUZUKI, Kazuo KOMATSU
Studies on Rheological Properties of Wood. II. Effect of Heat-Treating Condition on the Hygroscopicity and Dynamic Young’s Modulus of Wood.     34


Volume 7, Number 2 (1961)

Original Articles

Gen-ichi NAKAMURA, Hitoshi TAKACHIO
An Experiment on the Roughness and Stability of Sanded Surface. (in English)     41

Junichi IMATA and Kentaro SUZUKI
Studies on the Pressure in Particle Board Production. II. Causes Leading to Compressive Stress and an Experimentation on their Establishment     45

Takeshi SADOH
Studies on the Sorption of Water Vapour by Wood Hemicellulose. V. Hysteresis.     51

Ichiro OZAWA, Tsuneo KISHIMA
Observation of the Surface of Exploded Charcoal Manufactured from Domestic Oaks (Quercus sp.). (in English)     54

Ichiro OZAWA
Difference of Bending Strength and Bending Moment Among Black Charcoal, Explosive and Unexplosive White Charcoal. (in English)     59

Tadashi YAMADA, Tomio TAKEMURA, Sigeru KADITA
On the Rheology of Wood. III. The Creep and the Stress Relaxation of Buna.     63

Tomio TAKEMURA, Tadashi YAMADA, Sigeru KADITA
On the Rheology of Wood. IV. The Superposition Tests of Buna.     68

Tomio TAKEMURA, Manjiro FUKUYAMA
On the Relationship Between the Creep and the Early Part of the Load-Deformation Curve of Wood.     72

Jiro TANAKA
Studies of Degradation of Lignin. VI. Further Investigations on Syringyl Ethane. (in English)     77

Hisao ISHIKAWA, Tae OKI
The Enzymatic Conversion of Protocatechuic Acid (PA) to Gallic Acid (GA). (in English)     81


Volume 7, Number 3 (1961)

Original Articles

Hisao ISHIKAWA, Tae OKI, Fumio FUJITA
Hydroxyethylation of Phenolic Hydroxyl Groups in Hard Wood Lignin. (in English)     85

Tsutomu MATSUMOTO
Studies on the Dynamic Modulus E by Transverse Vibration. VI. On the Dynamic Modulus E and the Damping of Vibrations in Compression Wood     90

Moritami YASUE, Mieko HASHI, Makoto MIYAZAKI
Studies on Natural Resins. IX. On the Acidic Constituents of Oleoresin of Picea jezoensis CARR.     96

Mieko HASHI
Studies on Natural Resins. X. Acidic Constituents in Balsam of Abies sacharinensis MAST.     98

Isami TAKAMI, Masao KAWAGUCHI
Studies on the Mechanics of Wooden Box-Beam. I. Stiffness of Bending     101

Juichi TSUTSUMI, Haruto WATANABE
Studies on Variability in Wood Properties in Tree Stem. I. Specific Gravity     107

Takashi KANDA, Hidekuni KAWAKAMI, Noritsugu TAKASHIMA
Polarography of Lignin. VI. On the Properties of Thiolignin Wave     112

Takashi KANDA, Noritsugu TAKASHIMA, Hidekuni KAWAKAMI
Polarography of Lignin. I. On the Active Group of Thiolignin Catalytic Wave. (1)     117

Atsushi ISHIZU, Chiyoko TAKATSUKA, Nobuhiko MIGITA
Effect of Alkaline Cooking on Lignin. II. Determination of Acetovanillone and Detection of Propiovanillone in the Waste Liquor Produced by Cooking of Spruce Wood with Sodium Hydrosulfide. (in English)     121


Volume 7, Number 4 (1961)

Review

Tsunae SHIDEI
Some Requirements from the Silvicultural Standpoint to the Wood Utilization     131

Original Articles

Takashi KANDA, Noritsugu TERASHIMA, Hidekuni KAWAKAMI
Polarography of Lignin. VIII. On the Active Group of Thiolignin Catalytic Wave. (2)     138

Takashi KANDA, Noritsugu TERASHIMA, Hidekuni KAWAKAMI
Polarography of Lignin. IX. On the Active Group of Thiolignin Catalytic Wave. (3)     142

Ekitaro SANO
Effects of Temperature on the Mechanical Properties of Wood. I. Compression Parallel-to-Grain.     147

Goro FUSE
Studies Organic Mercury Compounds and Organic Tin Compounds for Wood Preservatives. On the Fungicidal Properties of Organic Mercuric Compounds and Organic Tin Compounds against Wood-Destroying Fungi     151

Goro FUSE, Koichi NISHIMOTO
Preservation of Wood by Chemical Modification. I. On the Preservative Properties of Cyanoethylated Wood.     157

Tsutomu KAYAMA
Chemical Studies on Decayed Wood as a Raw Material for Pulp. I. The Chemical Composition of Decayed Wood and Some Properties of Resultant Pulps. (in English)     161

Kazuo SUMIYA, Hikoichi SUGIHARA
On the Fluctuation of Bending Strength and Decay of Fracture in Bending of Wood     167

Kuninori USAMI, Yasumasa YONEZAWA
Studies on Sulphate Black Liquor. I. On the Composition of Sulphate Black Liquor.     171


Volume 7, Number 5 (1961)

Original Articles

Goro FUSE, Koichi NISHIMOTO
Studies on the Wood Preservation by the Diffusion Process. I. On the Determination of Arsenic Contained in the Wood.     179

Goro FUSE, Koichi NISHIMOTO
Studies on the Wood Preservation by the Diffusion Process. II. On the Relation between the Concentration of Chemical Agents and Penetration Ratio or Concentration in Wood.     183

Ekitaro SANO
Effects of Temperature on the Mechanical Properties of Wood. II. Tension Parallel-to-Grain     189

Ekitaro SANO
Effects of Temperature on the Mechanical Properties of Wood. III. Tosion Test     191

Kamekichi YAZAWA, Hisayoshi KURATA
Studies on the Measurement of Cell Element of Wood with the “Dimension-Calculator by Facsimile Process”     193

Hiroshi KITAMURA, Jun-ichi IMATA, Motooki SHIRIE
Studies on the Chip-Board Prepared with Low Pressure. II. On the Physical and Mechanical Properties of Chip-Board in Relation     199

Hiroshi KITAMURA, Jun-ichi IMATA, Motooki SHIRIE, Yoshio TORIYA
Studies on the Chip-Board Prepared with Low Pressure. III. On the Mechanical Properties of Chip Board in Relation to Specific Gravity of Board and Resin Content of it     202

Seiji OHKURA, Katsuji OZAWA, Keiko TAKASHIMA, Katsumi TAKEIRI
On the Twisting Warp of Wood.     205

Noritsugu TERASHIMA
Catalitic Wave of Flavonoid Compounds. I.     208

Takeo SHIBAMOTO, Toshio FUKUZUMI
Degradation of Tiolignin by Mycroorganism     212

Tokuo YOKOTA, Harold TARKOW
Hydrothermal Properties of Wood. (in English)     217


Volume 7, Number 6 (1961)

Original Articles

Ekitaro SANO
Effects of Temperature on Mechanical Properties of Wood. IV. Impact Bending Test.     223

Goro FUSE, Koichi NISHIMOTO
Studies on Organic Mercury Compounds and Organic Tin Compounds for Wood Preservatives. III. On the Sand-Block Testing Method for Rapid Evaluation of Preserving Effect     227

Goro FUSE, Atsushi ENDO, Koichi NISHIMOTO
Preservation of Wood by Chemical Modification. III. On the Cyanoethylation of Wood under Sodium Hydroxide Catalyst. (Part 2)     233

Kakuichi KITAHARA, Hiroo MIZUNO
Relationships between Tree Species and Properties of Particleboard. I . Relationships between Acidic Substances of Wood and Delamination Resistance.     239

Motoaki OKUMA, Shitomo MAMADA, Shinji HIRAI
Shearing Modulus of Plywood and Hardboard Measured by the Panel Shear Test. I . Measuring of Shearing Modulus by the ASTM Method.     242

Atsushi ISHIZU, Junzo NAKANO, Nobuhiko NIGITA
Effect of Alkaline Cooking on Lignin. III. Condensed Type of Acetovanillone in Alkaline Lignin. (in English)     247

Masumi NOGUCHI, Hikoichi SUGIHARA
Studies on Static Withdrawal Resistance of Nail. Effect of Shank-Modeficateon. (in English)     252

Takashi KANDA, Noritsugu TERASHIMA, Hidekuni KAWAKAMI
Polarography of Lignin. X. On the Active Group of Thiolignin Catalytic Wave. (4)     258

Isami TAKAMI, Masao KAWAGUCHI
Studies on the Wooden Box-Beam. II. Stiffness and Strength of Bending.     264

Noritsugu TERASHIMA
Catalytic Wave of Flavonoid Compounds. II.     269