Journal of the Japan Wood Researh Society最新文献

Energy Consumption at Procurement of Wood Pellets in Japan 日本木屑颗粒采购的能源消耗

Journal of the Japan Wood Researh Society Pub Date : 2010-11-25 DOI: 10.2488/JWRS.56.427

Y. Tsuchiya, K. Karasawa, Toshiki Satoh, Nobuyuki Tsuji

{"title":"Energy Consumption at Procurement of Wood Pellets in Japan","authors":"Y. Tsuchiya, K. Karasawa, Toshiki Satoh, Nobuyuki Tsuji","doi":"10.2488/JWRS.56.427","DOIUrl":"https://doi.org/10.2488/JWRS.56.427","url":null,"abstract":"未利用バイオマスを利用した木質ペレット製造について，エネルギー収支分析を行った。国内の3つのペレット工場を対象に，木材の伐採，輸送，ペレット製造，ペレット流通を評価範囲として，各工程における設備製造のエネルギーと運転エネルギーから，システム全体のエネルギー消費量を算出した。その結果，製造したペレットの発熱量（出力エネルギー）はペレット製造に係るエネルギー（入力エネルギー）を上回り，エネルギー収支はプラスであることが示された。しかし，出力エネルギーに占める入力エネルギーの割合は16～26％に達し，海外のペレット製造に比べて高い比率であることが明らかになった。入力エネルギーの詳細分析から，木材の調達手段や破砕方法，また乾燥用ボイラー燃料の選択等により，エネルギー消費量は大幅に低減する可能性があると考えられた。しかし，国産ペレットが燃料として競争力を持つためには相当な改善が必要であり，今後，林業の活性化を含めたシステム全体の最適化を図っていく必要がある。","PeriodicalId":384926,"journal":{"name":"Journal of the Japan Wood Researh Society","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123363340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Characterization of the Oil Palm Trunk as a Material for Bio-Ethanol Production 油棕树干作为生物乙醇生产原料的特性研究

Journal of the Japan Wood Researh Society Pub Date : 2009-11-25 DOI: 10.2488/JWRS.55.346

宏輔村井, Murai Kosuke, Uchida Ryuichiro, 内田隆一郎, 篤史大久保, Okubo Atsushi, Kondo Ryuichiro, 近藤隆一郎

{"title":"Characterization of the Oil Palm Trunk as a Material for Bio-Ethanol Production","authors":"宏輔村井, Murai Kosuke, Uchida Ryuichiro, 内田隆一郎, 篤史大久保, Okubo Atsushi, Kondo Ryuichiro, 近藤隆一郎","doi":"10.2488/JWRS.55.346","DOIUrl":"https://doi.org/10.2488/JWRS.55.346","url":null,"abstract":"樹齢25年のオイルパーム材樹幹から部位ごとに木片をサンプリングし，それぞれのアルコール・ベンゼン可溶部量，ホロセルロース量，リグニン量，熱水抽出物量及び抽出グルコース量を測定した。その結果，熱水抽出量，抽出グルコース量共に樹幹上部，材中心部ほど増加した。熱水抽出と同時にアミラーゼ処理を行ったところ，可溶性糖としてグルコース，フルクトース，スクロースが検出された。各部位での定量値から，樹幹全体（樹高0.5 m～9.5 m）からの可溶性糖はグルコース63 kg，フルクトース13 kg，スクロース11 kgと算出され，推定エタノール量は51.5 L/本，耕地面積あたりの推定エタノール収量は7.4 kL/haとなった。またオイルパーム木粉から抽出した糖液を木粉共存下でZymomonas mobilisによる発酵試験を行った結果，グルコース溶液を用いたコントロール発酵試験とほぼ同等のエタノール収率が得られ，発酵阻害は見られなかった。以上の点から，オイルパーム材はバイオエタノール製造原料として有望であると予想された。","PeriodicalId":384926,"journal":{"name":"Journal of the Japan Wood Researh Society","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132780518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Evaluation of the Wood Quality of Young Cryptomeria japonica Clones 柳杉幼树无性系木材品质的评价

Journal of the Japan Wood Researh Society Pub Date : 2009-05-25 DOI: 10.2488/JWRS.55.136

Hisaya Miyashita, Haruki Orita, T. Handa

引用次数: 6

Variations of Wood Properties in Forests of Seedlings and Cutting Cultivars of Hinoki (Chamaecyparis obtusa) 红木苗木和扦插品种林分木材特性的变化

Journal of the Japan Wood Researh Society Pub Date : 2006-09-25 DOI: 10.2488/JWRS.52.277

Syunji Tsushima, Yoshie A Fujioka, K. Oda, J. Matsumura, S. Shiraishi

{"title":"Variations of Wood Properties in Forests of Seedlings and Cutting Cultivars of Hinoki (Chamaecyparis obtusa)","authors":"Syunji Tsushima, Yoshie A Fujioka, K. Oda, J. Matsumura, S. Shiraishi","doi":"10.2488/JWRS.52.277","DOIUrl":"https://doi.org/10.2488/JWRS.52.277","url":null,"abstract":"Intra-forest variations of wood properties (radial growth, basic density, green moisture content, heartwood color, tracheid length, dynamic Young’s modulus and mechanical properties) and the difference between those of seedling forests and cutting cultivars of Hinoki (Chamaecyparis obtusa Endl.) were examined, using 60 trees of 3 seedling forests and 40 trees of 2 cutting cultivars of Nangohi. The results are as follows : 1)Intra-forest variations of radial growth of Nangohi were less than those of seedling forests. 2)Intra-forest variations of basic density at breast height, green moisture content of sapwood, tracheid length and mechanical properties of cutting cultivars were signifi cantly less than those of seedling forests, and green moisture content of heartwood, heartwood color and dynamic Young’s modulus of logs were a little less. 3)Heartwood color and tracheid length at breast height, and axial variation pattern of dynamic Young’s modulus of logs differed signifi cantly between seedling forests and cutting cultivars of Nangohi. Thus, intra-forest variations of wood properties of cutting cultivars were signifi cantly less than those of seedlings.","PeriodicalId":384926,"journal":{"name":"Journal of the Japan Wood Researh Society","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130462501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Effects of Initial Spacing on Growth and Wood Properties of Sugi (Cryptomeria japonica) Cutting Cultivars 初始间距对杉木扦插品种生长和木材特性的影响

Journal of the Japan Wood Researh Society Pub Date : 2006-07-25 DOI: 10.2488/JWRS.52.196

Tsushima Syunji, 俊治津島, 信也古賀, Koga Shinya, 一幸小田, Oda Kazuyuki, 進白石, Shiraishi Susumu

{"title":"Effects of Initial Spacing on Growth and Wood Properties of Sugi (Cryptomeria japonica) Cutting Cultivars","authors":"Tsushima Syunji, 俊治津島, 信也古賀, Koga Shinya, 一幸小田, Oda Kazuyuki, 進白石, Shiraishi Susumu","doi":"10.2488/JWRS.52.196","DOIUrl":"https://doi.org/10.2488/JWRS.52.196","url":null,"abstract":"スギさし木品種の成長と木材性質に及ぼす植栽密度の影響を明らかにするため，1500本/ha，3000本/ha，5000本/haの3段階の密度で植栽された6品種54個体（MuPS分析により品種同定したイワオ，ヒノデ，ヤマグチ，ヤイチ，シャカイン，ヤブクグリ）を対象に実験を行い，以下の結果を得た。測定した成長と木材性質において，植栽密度の影響は品種の影響に比べて小さかった。肥大成長と材積成長は，植栽密度の高い試験区ほど小さかった。植栽密度の高い試験区ほど成熟材の容積密度，心材のL＊値，丸太の動的ヤング率，縦圧縮強さおよび曲げヤング率がわずかに高く，逆に心材および辺材の生材含水率と心材のa＊値が低い傾向を示した。ヤブクグリと他の5品種では力学的性質に及ぼす植栽密度の影響が異なった。以上のことから，スギの種々の木材性質は，品種すなわち遺伝的要因に強く影響されるが，植栽密度の影響もわずかながら存在することが明らかとなった。","PeriodicalId":384926,"journal":{"name":"Journal of the Japan Wood Researh Society","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125145387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Effects of Delignifying Treatments on Mechano-sorptive Creep of Wood I. : Instantaneous and total compliance of radial specimens 去木质素处理对木材机械吸附蠕变的影响:径向试样的瞬时和总顺应性

Journal of the Japan Wood Researh Society Pub Date : 2006-01-25 DOI: 10.2488/jwrs.52.19

Wenbo Zhang, M. Tokumoto, T. Takeda, K. Yasue

{"title":"Effects of Delignifying Treatments on Mechano-sorptive Creep of Wood I. : Instantaneous and total compliance of radial specimens","authors":"Wenbo Zhang, M. Tokumoto, T. Takeda, K. Yasue","doi":"10.2488/jwrs.52.19","DOIUrl":"https://doi.org/10.2488/jwrs.52.19","url":null,"abstract":"As an additional step to explain the mechanism of mechano-sorptive （ MS ） creep, radial specimens of hinoki （ Chamaecyparis obtuse Endl. ） were subjected to different levels of deligniﬁ cation, and the effect of deligniﬁ cation on MS creep was investigated. In a previous paper, instantaneous and total creep compliance during ﬁ ve moisture cycles under three loading conditions was discussed. In this study, recovery of set of radial specimens described in the previous paper was investigated, and we also compared the results with recovery of set when subjected to a single adsorption or desorption process. The levels of deligniﬁ cation were three: weak （ W ） , moderate （ M ） , and strong （ S ） as described in the previous paper. Untreated specimens （ C ） were also prepared as controls. The loading conditions during moisture cycling were three : “Ad” cycle, “Da ” cycle, and “AD” cycle under continuous load. For specimens subjected to a single adsorption or desorption process under load, “A” -process specimens were under load during adsorption, and “D”-process specimens were under load during desorption. The range of adsorption or desorption was between 40% to 94%RH. The concentrated bending load was set at midspan of specimens, and deﬂ ections were measured at midspan. For the prepared specimens, recovery of set was obtained during adsorption.","PeriodicalId":384926,"journal":{"name":"Journal of the Japan Wood Researh Society","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123525191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Growth and Wood Properties of Sugi (Cryptomeria japonica) Cultivars Planted in the Kyushu Region 九州地区杉木(Cryptomeria japonica)栽培品种的生长和木材特性

Journal of the Japan Wood Researh Society Pub Date : 2005-11-25 DOI: 10.2488/JWRS.51.394

俊治津島, Tsushima Syunji, Koga Shinya, 信也古賀, 一幸小田, Oda Kazuyuki, Shiraishi Susumu, 進白石

引用次数: 12

Strength Properties of Aged Wood III : Static and impact bending strength properties of aged keyaki and akamatsu woods 老化木材的强度特性III:老化木和赤松木材的静态和冲击弯曲强度特性

Journal of the Japan Wood Researh Society Pub Date : 2005-05-25 DOI: 10.2488/JWRS.51.146

Y. Hirashima, M. Sugihara, Y. Sasaki, K. Ando, M. Yamasaki

引用次数: 29

Dimensional Stabilization of Compressed Wood Using High-Frequency Heating II. 高频加热压缩木材尺寸稳定2。

Journal of the Japan Wood Researh Society Pub Date : 1900-01-01 DOI: 10.2488/JWRS.52.173

Masafumi Inoue, Jun Kodama, Yasuji Yamamoto, M. Norimoto

引用次数: 12