Hichiriki is a traditional Japanese oboe used for Japanese ancient court music (Gagaku). The vibrating plate (Rozetsu) of the hichiriki is made from a reed (Phragmites australis), and the best reed is believed to be harvested in the Udono area along the Yodogawa river. In this study, we observed the anatomical structure of reeds selected by experts, and measured their density and transverse compressive strength to clarify the basic requirements for quality instruments. Within an internode, the upper part was always thinner and denser than the lower part, depending on the thickness of the low-density parenchyma layer beneath the cortex. Selected reed was slightly thicker and denser than unselected reed, but those differences were not significant. On the other hand, the transverse compressive strength of selected reed was significantly greater than that of unselected reed, and the upper part showed the highest strength. It is considered that sufficient transverse strength is required while the thinner, i.e. deformable upper part is preferred, because an end of the reed culm is compressed to form the closed end of the double-reed. With respect to shape, density and compressive strength, the Mukaijima area along the Uji river is a potential field to harvest reeds for hichiriki.
{"title":"Physical Properties of the Reed ( Phragmites australis ) Used for the Vibrating Plate of the Japanese Oboe (Hichiriki) I: Density variation in the culm and compressive strength in the transverse direction@@@材内の密度分布と稈の横圧縮強度","authors":"Ryotaro Nakanishi, E. Obataya","doi":"10.2488/jwrs.62.259","DOIUrl":"https://doi.org/10.2488/jwrs.62.259","url":null,"abstract":"Hichiriki is a traditional Japanese oboe used for Japanese ancient court music (Gagaku). The vibrating plate (Rozetsu) of the hichiriki is made from a reed (Phragmites australis), and the best reed is believed to be harvested in the Udono area along the Yodogawa river. In this study, we observed the anatomical structure of reeds selected by experts, and measured their density and transverse compressive strength to clarify the basic requirements for quality instruments. Within an internode, the upper part was always thinner and denser than the lower part, depending on the thickness of the low-density parenchyma layer beneath the cortex. Selected reed was slightly thicker and denser than unselected reed, but those differences were not significant. On the other hand, the transverse compressive strength of selected reed was significantly greater than that of unselected reed, and the upper part showed the highest strength. It is considered that sufficient transverse strength is required while the thinner, i.e. deformable upper part is preferred, because an end of the reed culm is compressed to form the closed end of the double-reed. With respect to shape, density and compressive strength, the Mukaijima area along the Uji river is a potential field to harvest reeds for hichiriki.","PeriodicalId":17248,"journal":{"name":"Journal of the Japan Wood Research Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89539319","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}
The equilibrium moisture content of wood in Japan is considered to be 15% and is based on weather and experimental data of past years. With the increase of uninhabited weather observation points, weather data has increased over recent years. The objective of this paper was to investigate the recent values of equilibrium moisture content of wood using weather data from 1981 to 1995 for the entire area of Japan.Therefore, contour line maps were used to denote the equilibrium moisture content for the entire year in Japan. The average value of the equilibrium moisture content of Japan was 15%, and the numerical value range was 12‒19%. This value did not change when compared with that reported previously. However, the average value of the equilibrium moisture content of wood changed to 13.5% when compared for the past year the same meteorological stations that had reported previously. equilibrium moisture contour line map, climate data.
{"title":"Equilibrium Moisture Content of Wood Estimated Using the Climate Data of Japan","authors":"S. Saito, S. Shida","doi":"10.2488/JWRS.62.182","DOIUrl":"https://doi.org/10.2488/JWRS.62.182","url":null,"abstract":"The equilibrium moisture content of wood in Japan is considered to be 15% and is based on weather and experimental data of past years. With the increase of uninhabited weather observation points, weather data has increased over recent years. The objective of this paper was to investigate the recent values of equilibrium moisture content of wood using weather data from 1981 to 1995 for the entire area of Japan.Therefore, contour line maps were used to denote the equilibrium moisture content for the entire year in Japan. The average value of the equilibrium moisture content of Japan was 15%, and the numerical value range was 12‒19%. This value did not change when compared with that reported previously. However, the average value of the equilibrium moisture content of wood changed to 13.5% when compared for the past year the same meteorological stations that had reported previously. equilibrium moisture contour line map, climate data.","PeriodicalId":17248,"journal":{"name":"Journal of the Japan Wood Research Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89688061","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}
Nanoka Komeyama, Masashi Nakamura, Y. Kataoka, M. Sugiyama
Wood has a highly aesthetic appearance. There have been some efforts to elucidate its psychological and/or physiological effects on humans, but quantitative data are still insufficient. This study aimed to examine the effect of contrast change in grain patterns on visual attractiveness and impressions. Three species and ten coating specifications were selected and thirty kinds of fancy veneer overlaid plywood were prepared. Their surface images were captured by the imaging spectroscope system, and were subjected to histogram analysis and multi-resolution contrast analysis to derive contrast values as image characteristics. The specimens were also provided for free observation and sensory evaluation by 27 subjects. During the observation, eye fixations of the subjects were recorded by an eye tracker. The contrast values derived from the image analyses exactly expressed the appearance change by coatings, and showed highly positive correlation to “subjective noticeability of grain patterns.” Moreover, the eye tracking revealed that the visual attractiveness of the specimens was affected by the contrast changes.
{"title":"Effect of Contrast Changes in Wood-grain Patterns by Coating on Visual Attractiveness","authors":"Nanoka Komeyama, Masashi Nakamura, Y. Kataoka, M. Sugiyama","doi":"10.2488/JWRS.62.293","DOIUrl":"https://doi.org/10.2488/JWRS.62.293","url":null,"abstract":"Wood has a highly aesthetic appearance. There have been some efforts to elucidate its psychological and/or physiological effects on humans, but quantitative data are still insufficient. This study aimed to examine the effect of contrast change in grain patterns on visual attractiveness and impressions. Three species and ten coating specifications were selected and thirty kinds of fancy veneer overlaid plywood were prepared. Their surface images were captured by the imaging spectroscope system, and were subjected to histogram analysis and multi-resolution contrast analysis to derive contrast values as image characteristics. The specimens were also provided for free observation and sensory evaluation by 27 subjects. During the observation, eye fixations of the subjects were recorded by an eye tracker. The contrast values derived from the image analyses exactly expressed the appearance change by coatings, and showed highly positive correlation to “subjective noticeability of grain patterns.” Moreover, the eye tracking revealed that the visual attractiveness of the specimens was affected by the contrast changes.","PeriodicalId":17248,"journal":{"name":"Journal of the Japan Wood Research Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84589537","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}
Class III peroxidases (plant peroxidases) exist as large multigene families in higher plants, and most of them are localized in the cell wall. It has been reported that they are involved in lignification, cell elongation, stress defense, phytohormonal regulation, suberization and structural protein formation. However, the underlying mechanisms and the presentation of their functions are not fully understood. Plant peroxidases can function as catalytic enzymes that oxidize phenolic compounds while consuming hydrogen peroxide and/or as generators of reactive oxygen species. Moreover, biochemical approaches to characterize plant peroxidases have revealed the catalytic property of plant peroxidases responsible for lignin biosynthesis. In conclusion, not only spatiotemporal regulation of gene expression and protein distribution, but also differentiated oxidation properties of each plant peroxidase, define the function in the cell wall.
{"title":"Roles of Plant Peroxidases in Cell Wall Formation and Modification","authors":"Jun Shigeto, Y. Tsutsumi","doi":"10.2488/JWRS.62.91","DOIUrl":"https://doi.org/10.2488/JWRS.62.91","url":null,"abstract":"Class III peroxidases (plant peroxidases) exist as large multigene families in higher plants, and most of them are localized in the cell wall. It has been reported that they are involved in lignification, cell elongation, stress defense, phytohormonal regulation, suberization and structural protein formation. However, the underlying mechanisms and the presentation of their functions are not fully understood. Plant peroxidases can function as catalytic enzymes that oxidize phenolic compounds while consuming hydrogen peroxide and/or as generators of reactive oxygen species. Moreover, biochemical approaches to characterize plant peroxidases have revealed the catalytic property of plant peroxidases responsible for lignin biosynthesis. In conclusion, not only spatiotemporal regulation of gene expression and protein distribution, but also differentiated oxidation properties of each plant peroxidase, define the function in the cell wall.","PeriodicalId":17248,"journal":{"name":"Journal of the Japan Wood Research Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80244598","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}
Kumiko Matsumoto, Koji Kawato, M. Imai, Naoto Saito, M. Sasaki, Yasuhiro Kawabata
{"title":"Preference Evaluation Based on Cognitive Psychology of the Quantity of Knots Present in Wood Wall Panels II : Effects of ratio of knot area of todomatsu wall panels and setting on people's preference@@@節の量の違いと使用場所が内装材の評価に及ぼす影響","authors":"Kumiko Matsumoto, Koji Kawato, M. Imai, Naoto Saito, M. Sasaki, Yasuhiro Kawabata","doi":"10.2488/JWRS.62.67","DOIUrl":"https://doi.org/10.2488/JWRS.62.67","url":null,"abstract":"","PeriodicalId":17248,"journal":{"name":"Journal of the Japan Wood Research Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79529273","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}
K. Miura, N. Sekino, K. Kubota, H. Oka, Masahiko Kobayashi, M. Kiguchi, Yushin Ohtomo
In order to provide wood-plastic composites (WPCs) with a GHz electromagnetic wave absorbing function, WPCs were manufactured by adding magnetic powder. The effect of increases in volume fraction of Mn-Zn magnetic powder on bending, hygroscopic, and electromagnetic characteristics of the WPCs were investigated and the electromagnetic wave absorbing performance was estimated, focusing especially on the effects of moisture on performance. The results showed that there was no deterioration in bending performance by either reducing the volume fraction of wood powder or increasing that of magnetic powder. Equilibrium moisture contents (EMC) measured at high humidity were less than 6% even for the specimen with the highest volume fraction of wood powder. Because of such a low hygroscopic property, there was no significant difference in electromagnetic wave absorbing performance, estimated using relative permittivity and permeability between the samples exposed at high humidity and in the bone-dry condition. Furthermore, return losses of double-layered WPCs for practical use were simulated by transmission line theory. As a result, matched frequencies such that return loss reaches more than 40 dB were obtained in the microwave band by optimizing the sample thickness.
{"title":"Wood-Plastic Composites Equipped with an Electromagnetic Wave Absorbing Function by Adding Magnetic Powder","authors":"K. Miura, N. Sekino, K. Kubota, H. Oka, Masahiko Kobayashi, M. Kiguchi, Yushin Ohtomo","doi":"10.2488/JWRS.62.9","DOIUrl":"https://doi.org/10.2488/JWRS.62.9","url":null,"abstract":"In order to provide wood-plastic composites (WPCs) with a GHz electromagnetic wave absorbing function, WPCs were manufactured by adding magnetic powder. The effect of increases in volume fraction of Mn-Zn magnetic powder on bending, hygroscopic, and electromagnetic characteristics of the WPCs were investigated and the electromagnetic wave absorbing performance was estimated, focusing especially on the effects of moisture on performance. The results showed that there was no deterioration in bending performance by either reducing the volume fraction of wood powder or increasing that of magnetic powder. Equilibrium moisture contents (EMC) measured at high humidity were less than 6% even for the specimen with the highest volume fraction of wood powder. Because of such a low hygroscopic property, there was no significant difference in electromagnetic wave absorbing performance, estimated using relative permittivity and permeability between the samples exposed at high humidity and in the bone-dry condition. Furthermore, return losses of double-layered WPCs for practical use were simulated by transmission line theory. As a result, matched frequencies such that return loss reaches more than 40 dB were obtained in the microwave band by optimizing the sample thickness.","PeriodicalId":17248,"journal":{"name":"Journal of the Japan Wood Research Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86380558","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}
Manufacturers of wood flooring products pursue enhancement of a wood-like feeling of their products. However, to numerically evaluate the effect of various treatments to improve the wood-like feeling has been very difficult. This study aims to develop a novel evaluation technique which objectively describes appearances of wood floorings which contribute to a wood-like feeling by certain image characteristics. Forty-seven flooring products were collected. Their surfaces were illuminated at various lighting azimuths, and high-resolution images of the surfaces were captured. The surface images were subjected to multi-resolution contrast analysis and correlation analysis. Four image characteristics of “micro visibility”, “macro visibility”, “contrast anisotropy”, and “gloss shift” were derived from these image analyses, which corresponded well with the reflectance properties of the flooring products. Additional 20 flooring products were prepared for sensory evaluation by 24 ordinary consumers. Multiple regression analysis revealed that the image characteristics computed for the 20 flooring products explained the results of sensory evaluation well.
{"title":"Derivation of Image Characteristics to Describe the Appearance of Wood Flooring Products and Verification of Their Correspondence to Impressions Evaluated by Human Observers","authors":"Masashi Nakamura, Akane Saito, Naoki Okada","doi":"10.2488/JWRS.62.108","DOIUrl":"https://doi.org/10.2488/JWRS.62.108","url":null,"abstract":"Manufacturers of wood flooring products pursue enhancement of a wood-like feeling of their products. However, to numerically evaluate the effect of various treatments to improve the wood-like feeling has been very difficult. This study aims to develop a novel evaluation technique which objectively describes appearances of wood floorings which contribute to a wood-like feeling by certain image characteristics. Forty-seven flooring products were collected. Their surfaces were illuminated at various lighting azimuths, and high-resolution images of the surfaces were captured. The surface images were subjected to multi-resolution contrast analysis and correlation analysis. Four image characteristics of “micro visibility”, “macro visibility”, “contrast anisotropy”, and “gloss shift” were derived from these image analyses, which corresponded well with the reflectance properties of the flooring products. Additional 20 flooring products were prepared for sensory evaluation by 24 ordinary consumers. Multiple regression analysis revealed that the image characteristics computed for the 20 flooring products explained the results of sensory evaluation well.","PeriodicalId":17248,"journal":{"name":"Journal of the Japan Wood Research Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82000339","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}
*1 Received June 1, 2016 ; accepted August 1, 2016. 本研究の一部は第63回日本木材学会大会(2013年3月, 盛岡)で発表した。 *2 地方独立法人 北海道立総合研究機構 林産試験場 Forest Products Research Institute, Hokkaido Research Instiute, Asahikawa 071-0198, Japan *3 国立研究開発法人 森林総合研究所 Forestry and Forest Products Research Institute, Tsukuba 305-8687, Japan Corresponding author : M. Suzuki (suzuki-masaki@hro.or.jp) 木質材料の小形チャンバー法の測定結果を用いた 実大空間におけるアセトアルデヒド気中濃度予測*1
* 1received June 1, 2016;accepted August 1,2016 .本研究的一部分已在第63届日本木材学会大会(2013年3月，盛冈)上发表。*2地方独立法人北海道立综合研究机构林产试验场Forest Products Research Institute, Hokkaido Research Instiute日本国立研究开发法人森林综合研究所Forestry and Forest Products Research InstituteTsukuba 305-8687, Japan Corresponding author:M. Suzuki (suzuki-masaki@hro.or.jp)利用木质材料小仓法测定结果的实际大空间中乙醛气体浓度预测*1
{"title":"Estimate of Acetaldehyde Concentration in a Full-scale Testing Room Based on the Emission Factors of Wood-based Materials Obtained Using the Small Chamber Method","authors":"Masaki Suzuki, H. Akitsu, K. Miyamoto, S. Tohmura","doi":"10.2488/JWRS.62.317","DOIUrl":"https://doi.org/10.2488/JWRS.62.317","url":null,"abstract":"*1 Received June 1, 2016 ; accepted August 1, 2016. 本研究の一部は第63回日本木材学会大会(2013年3月, 盛岡)で発表した。 *2 地方独立法人 北海道立総合研究機構 林産試験場 Forest Products Research Institute, Hokkaido Research Instiute, Asahikawa 071-0198, Japan *3 国立研究開発法人 森林総合研究所 Forestry and Forest Products Research Institute, Tsukuba 305-8687, Japan Corresponding author : M. Suzuki (suzuki-masaki@hro.or.jp) 木質材料の小形チャンバー法の測定結果を用いた 実大空間におけるアセトアルデヒド気中濃度予測*1","PeriodicalId":17248,"journal":{"name":"Journal of the Japan Wood Research Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85808191","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}
{"title":"Greenhouse Gas Emission Reductions in a District Heating and Cooling System by Using Woody Biomass: A study in Shiwa, Iwate Prefecture@@@岩手県紫波町を対象として","authors":"Chihiro Kayo, Ryota Ojimi, M. Iwaoka, K. Yasuda","doi":"10.2488/JWRS.62.172","DOIUrl":"https://doi.org/10.2488/JWRS.62.172","url":null,"abstract":"","PeriodicalId":17248,"journal":{"name":"Journal of the Japan Wood Research Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74328196","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}
Wood has unique reflection properties originating in its anatomical structure. Gloss transition is a typical one of such properties, which appears by changes in the optical geometry of the timber surface, the lighting source, and the observer. Wavy grain or curly grain easily tend to show the gloss transition, and this special appearance directly affects the aesthetic value of various wood products and craftworks. Thus, curly maple has been used as backboards of the violin with fiddleback figures. To elucidate the relationship between the appearance and the attractiveness of the fiddleback figures, image characteristics related to the gloss transition were calculated regarding 10 violin backs, and psychological response and eye movements of observers viewing videos of the gloss transition were measured. Results were summarized as follows: 1) Contrast spectra derived by the image analysis demonstrate the gloss transition effectively. 2) Subjects’ eyes follow the gloss transition, although distribution patterns of eye fixations are different for each fiddleback figure. 3) The fiddleback figures of higher contrast tend to evoke a more “Varied” impression on observers.
{"title":"Relationships between Reflection Properties and Visual Attractiveness of Fiddleback Figures: Evaluation with eye tracking and image analysis@@@視線追跡および画像解析による評価","authors":"M. Kato, Masashi Nakamura","doi":"10.2488/JWRS.62.284","DOIUrl":"https://doi.org/10.2488/JWRS.62.284","url":null,"abstract":"Wood has unique reflection properties originating in its anatomical structure. Gloss transition is a typical one of such properties, which appears by changes in the optical geometry of the timber surface, the lighting source, and the observer. Wavy grain or curly grain easily tend to show the gloss transition, and this special appearance directly affects the aesthetic value of various wood products and craftworks. Thus, curly maple has been used as backboards of the violin with fiddleback figures. To elucidate the relationship between the appearance and the attractiveness of the fiddleback figures, image characteristics related to the gloss transition were calculated regarding 10 violin backs, and psychological response and eye movements of observers viewing videos of the gloss transition were measured. Results were summarized as follows: 1) Contrast spectra derived by the image analysis demonstrate the gloss transition effectively. 2) Subjects’ eyes follow the gloss transition, although distribution patterns of eye fixations are different for each fiddleback figure. 3) The fiddleback figures of higher contrast tend to evoke a more “Varied” impression on observers.","PeriodicalId":17248,"journal":{"name":"Journal of the Japan Wood Research Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75045959","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}
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