1000-2006
1980 Issue 4
A PRELIMINARY REPORT ON SEX PHEROMONE OF CLANIA VARIEGATA SNELLEN
Insect hormones research group;Nanjing TechnologicalCollege of Forest ProductsInsect hormones;research group;Shanghai Institute of Organic Chemistry;Academia Sinica
Insect hormones research group;Nanjing TechnologicalCollege of Forest ProductsInsect hormones;research group;Shanghai Institute of Organic Chemistry;Academia Sinica
..............page:1-7
..............page:8-15
STUDIES ON THE ANTHRACNOSE OF CHINESE FIRIII. Epiphytotics of the Disease
South China Forest-Plant Quarantine Service;MFPRCNanjing Technological College of Forest Products Beling Forestry Station;Jinxian County;Jiangxi Province
South China Forest-Plant Quarantine Service;MFPRCNanjing Technological College of Forest Products Beling Forestry Station;Jinxian County;Jiangxi Province
..............page:16-22
STUDIES ON THE GENOTYPE x ENVIRONMENT INTERACTION AND GENOTYPIC STABILITY OF CHINESE FIR II Analysis of the Multiplantation Progeny Test
Ye Peizhong;Chen Yuewu and Chen Jin Ruan Yichu;Chen Shibin;Liu Dalin;Guo Muchun and Lin Qiyang Zheng Yuhuang and Zhou Caigong Chen Xunlei
Ye Peizhong;Chen Yuewu and Chen Jin Ruan Yichu;Chen Shibin;Liu Dalin;Guo Muchun and Lin Qiyang Zheng Yuhuang and Zhou Caigong Chen Xunlei
..............page:23-34
GENETIC VARIATIONS OF CHINESE FIR IN ELEVEN PROVENANCES
Chen Yuewu Euan Yichu;Chen Shibin;Liu Dalin and Lin Qiyang
Chen Yuewu Euan Yichu;Chen Shibin;Liu Dalin and Lin Qiyang
..............page:35-45
A PRELIMINARY STUDY ON THE CROWN STRUCTURE OF CHINESE FIR (CUNNINGHAMIA LANCEOLATA)
Jiang Zhilin and Ye Jingzhong
Jiang Zhilin and Ye Jingzhong
..............page:46-52
A STUDY ON FURFURAL REFINING PROCESS AT PRODUCTIVE SCALE
Ding Zhensen;Tan Baiqi and Hu jianhua
Ding Zhensen;Tan Baiqi and Hu jianhua
..............page:53-61
A TEST ON THE PHYSICAL AND MECHANICAL PROPERTIES OF PINUS MASSONIANA AFTER RESIN TAPPING
Chen Guanghua
Chen Guanghua
..............page:62-70
A NEW TYPE HIGH-TEMPERATURE DRYING KILN FOR LUMBER
Gu Lianbai and Jin XianzhangA new type high-temperature drying kiln for lumber has been designed in 1977. The Characteristics of this kiln are that side wall are tilted along the length and a fan and radiators are put at the back end of the kiln;its drying medium may be either superheated vapour or high-temperature wet air. The construction of the kiln is simple and economical.One of this kind of kiln was built at Zhongshan Furniture Factory in Nanjing. The capacity of this kiln is 8.5 m3 and its annual output is 2100 m3 of softwood lumber in 2.2 cm thickness. It is found that the velocity of circulation of drying medium through load is over 2 m/s;as compared with 1~2 rn/s in the conventional kilns in our country. The velocity of medium circulation through load is uniform along the height of the load but is not so uniform along the length. The drying period for the 2.2 cm-thick Pinus massoniana Lamb;lumber with an initial moisture content of 39.1; and a final moisture content of 3.7; is only 14 hours;whearas in the conventional kiln in our country it takes over two days. Final moisture contents of samples put in different parts of the load are uniform though their initial moisture contents may vary greatly. The drying quality is good.On the whole;this kiln is suitable for small and medium lumber mills and if built with double tracks;it will be applicable to larger mills.
Gu Lianbai and Jin XianzhangA new type high-temperature drying kiln for lumber has been designed in 1977. The Characteristics of this kiln are that side wall are tilted along the length and a fan and radiators are put at the back end of the kiln;its drying medium may be either superheated vapour or high-temperature wet air. The construction of the kiln is simple and economical.One of this kind of kiln was built at Zhongshan Furniture Factory in Nanjing. The capacity of this kiln is 8.5 m3 and its annual output is 2100 m3 of softwood lumber in 2.2 cm thickness. It is found that the velocity of circulation of drying medium through load is over 2 m/s;as compared with 1~2 rn/s in the conventional kilns in our country. The velocity of medium circulation through load is uniform along the height of the load but is not so uniform along the length. The drying period for the 2.2 cm-thick Pinus massoniana Lamb;lumber with an initial moisture content of 39.1; and a final moisture content of 3.7; is only 14 hours;whearas in the conventional kiln in our country it takes over two days. Final moisture contents of samples put in different parts of the load are uniform though their initial moisture contents may vary greatly. The drying quality is good.On the whole;this kiln is suitable for small and medium lumber mills and if built with double tracks;it will be applicable to larger mills.
..............page:71-83
..............page:84-98
CHARACTERISTICS OF WOOD-BASED PANELS UNDER X-RAYII A Direct Ditching Method for Evaluating the Internal Bond
Strength of Thick ParticleboardsLaboratory of Wood-based Panels
Strength of Thick ParticleboardsLaboratory of Wood-based Panels
..............page:99-102
MECHANICAL PROPERTY MEASUREMENT AND METALLOGRAPHICAL ANALYSIS OF THEBANDSAW WELD
Wang Wenhua and Wu Yongqing Mei Qingdong
Wang Wenhua and Wu Yongqing Mei Qingdong
..............page:103-111
PREPARATION AND APPLICATION OF MALEATED ROSIN FROM MALEIC ACID FOR FORTIFIED PAPER SIZING
Huang Xiba;Wu Zhongmeng and Wang Qingliu
Huang Xiba;Wu Zhongmeng and Wang Qingliu
..............page:112-120
PREPARATION OF CHLORINATED ROSIN AND ITS USE IN THE COLD PROCESSING OF METALS
Huang Jianling and Zhang Kangfu
Huang Jianling and Zhang Kangfu
..............page:121-125
..............page:126-131
..............page:132