Nordic Pulp & Paper Research Journal最新文献

PAE adsorption on polyelectrolyte-grafted pulp fibers. 聚电解质接枝纸浆纤维对PAE的吸附。

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2025-10-14 eCollection Date: 2026-03-01 DOI: 10.1515/npprj-2025-0011

Abdollah Karami, Xiao Wu, Jose Moran-Mirabal, Robert H Pelton

{"title":"PAE adsorption on polyelectrolyte-grafted pulp fibers.","authors":"Abdollah Karami, Xiao Wu, Jose Moran-Mirabal, Robert H Pelton","doi":"10.1515/npprj-2025-0011","DOIUrl":"10.1515/npprj-2025-0011","url":null,"abstract":"The adsorption of cationic polyamide-amine epichlorohydrin (PAE) paper wet-strength resin onto bleached kraft pulp fibers was increased by grafting hydrolyzed poly(ethylene-alt-maleic anhydride) (PEMAc) onto fiber surfaces before PAE adsorption. The highly negatively charged PEMAc increased the sparse negative charge density on untreated fibers, enhancing PAE adsorption. The adsorption isotherm analysis provided estimates of adsorbed PAE on exterior fiber surfaces, Γex, as well as the ideality index, IX, a new measure of isotherm ideality. IX increases when grafting lowers the access of adsorbing polymer to interior surfaces, whereas IX decreases when grafting enhances the adsorption capacity of interior surfaces. A library of 18 adsorption isotherms compares PAE and poly(diallyldimethylammonium chloride) adsorption on unmodified pulps, grafted pulps, and TEMPO-oxidized pulps. The grafted pulps include PEMAc polymers modified with pendent short alkyl or poly(ethylene glycol) chains. A grafted PEMAc content of 4.1 mg PEMAc per g of dry fiber tripled the amount of adsorbed PAE on exterior fiber surfaces. About two anionic PEMAc carboxylic acid groups were required for every adsorbed PAE cationic charge. Modification of the PEMAc with pendent chains had little effect. TEMPO oxidation, at the same total fiber charge content, had no positive impact on PAE adsorption.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"41 1","pages":"139-150"},"PeriodicalIF":1.2,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12912036/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146220660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of mycelium paper sheets and study on their adsorption properties 菌丝纸的制备及其吸附性能研究

4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2025-09-12 DOI: 10.1515/npprj-2025-0042

Weifeng Chen, Xiwen Wang

{"title":"Preparation of mycelium paper sheets and study on their adsorption properties","authors":"Weifeng Chen, Xiwen Wang","doi":"10.1515/npprj-2025-0042","DOIUrl":"https://doi.org/10.1515/npprj-2025-0042","url":null,"abstract":"Abstract With the progression of society, aquatic pollution has intensified, prompting a search for greener materials for wastewater treatment. Here, we present a mycelium-based paper developed via alkaline deacetylation of fungal mycelial fibers to chitosan, followed by vacuum filtration, and reinforcement with long plant fibers to enhance mechanical performance. The resulting mycelium–paper composite exhibits a highly dense structure, with very low air permeability (0.42 mL/min), tensile strength of approximately 14 MPa, and tear resistance up to 1,384 mN. In filtration tests, a single pass of 30 mg/L Cu 2+ solution yielded a removal efficiency of 98 %, corresponding to an adsorption capacity of 8.75 mg/g; for methylene blue dye, the adsorption capacity was 7.42 mg/g. Compared to conventional cellulose-based powder adsorbents, which often suffer from material loss and require post-treatment, the mycelial paper can be formed directly into membrane-like filters, simplifying handling. Furthermore, this mycelial membrane displayed strong adsorption across various heavy metal ions and dyes, underscoring its significant potential for sustainable water purification.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"40 4","pages":"713-725"},"PeriodicalIF":0.0,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147881479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Applications of cationic bamboo fibers for the effective reinforcements of secondary fibers 阳离子竹纤维在二次纤维增强中的应用

4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2025-08-13 DOI: 10.1515/npprj-2024-0089

Tianhao Huang, Yunxia Wang, Yi Hou, X. Liu

{"title":"Applications of cationic bamboo fibers for the effective reinforcements of secondary fibers","authors":"Tianhao Huang, Yunxia Wang, Yi Hou, X. Liu","doi":"10.1515/npprj-2024-0089","DOIUrl":"https://doi.org/10.1515/npprj-2024-0089","url":null,"abstract":"Abstract Bamboo, with its long fibers, fast growth, high abundance, and short harvesting cycle, is a promising alternative to traditional wood pulp, particularly in reinforcing secondary fibers during paper recycling. In this study, different from direct addition with poor combination concerning the negative charge in recycled pulp fibers, bamboo fibers were firstly modified with 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTAC) to get cationic bamboo fibers, the characterizations by FTIR and N contents (maximum 1.05 %) classified that the hydroxyl groups in bamboo fibers were etherified effectively with greater zeta potentials (maximum −13.2 mV) in mixed pulps. The cationic modification of bamboo fibers resulted in a significant increase in the tensile and burst index of the secondary pulp, by 49.75 % and 61.54 % with only 10 %addition, respectively, as compared to the unmodified bamboo fibers, which was contributed to the mutual attraction between positively charged modified bamboo fibers and negatively charged secondary fibers, besides the original hydrogen bonding inside fibers, which leads to the enhancements for secondary fibers strength. These findings provide valuable insights into the effective applications of bamboo fibers for reinforcing recycled paper and offer promising solutions for the sustainable development of the paper industry.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"40 4","pages":"657-665"},"PeriodicalIF":0.0,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147892736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Preparation of MgO/CaCO₃ nanocomposites and their deacidification properties for paper documents MgO/CaCO3纳米复合材料的制备及其对纸质文件的脱酸性能研究

4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2025-04-29 DOI: 10.1515/npprj-2024-0090

Chun Gui, Xiaoguang Jiao, Kun Long, Zhipei Yan, Huanhuan Zhu, Caihong Feng, Qingze Jiao, Yun Zhao, Zhouling Tian

{"title":"Preparation of MgO/CaCO3 nanocomposites and their deacidification properties for paper documents","authors":"Chun Gui, Xiaoguang Jiao, Kun Long, Zhipei Yan, Huanhuan Zhu, Caihong Feng, Qingze Jiao, Yun Zhao, Zhouling Tian","doi":"10.1515/npprj-2024-0090","DOIUrl":"https://doi.org/10.1515/npprj-2024-0090","url":null,"abstract":"Abstract Acidification is an important factor in the damage of paper documents. At present, it is recognized that deacidification is an effective means to solve the problem. In this work, aiming at the problems of the traditional single deacidification agent, such as uncontrollable alkali strength, insufficient alkaline reserve, uneven deacidification effect, and high local alkalinity, MgO/CaCO 3 nanocomposites were prepared as a new paper deacidification agent. The composites combined the immediate and efficient deacidification of MgO and the long-term mild deacidification of CaCO 3 . The morphologies and structures of MgO/CaCO 3 nanocomposites were characterized by TEM and XRD. When applied to the deacidification of paper documents, the MgO/CaCO 3 nanocomposites showed excellent deacidification performances and high alkaline reserve. The alkali strength of the MgO/CaCO 3 nanocomposites can be controlled by adjusting the ratio of MgO to CaCO 3 so that the pH value and alkaline reserve of the paper after deacidification are within a reasonable range.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"40 3","pages":"551-557"},"PeriodicalIF":0.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147892013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-situ construct dynamic bonds between lignin and PBAT by epoxidized soybean oil to improve interfacial compatibility: processing, characterization, and antibacterial activity for food packaging 用环氧大豆油原位构建木质素与PBAT之间的动态键以改善界面相容性：加工、表征和食品包装的抗菌活性

4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2025-03-25 DOI: 10.1515/npprj-2024-0010

Ting Wang, Haitang Liu, Shaoze Wang, Xiaoyuan Liao

引用次数: 0

The in situ green synthesis of metal organic framework (HKUST-1)/cellulose/chitosan composite aerogel (CSGA/HKUST-1) and its adsorption on tetracycline 原位绿色合成金属有机骨架(HKUST-1)/纤维素/壳聚糖复合气凝胶（CSGA/HKUST-1）及其在四环素上的吸附

4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-12-18 DOI: 10.1515/npprj-2024-0053

Tianhao Wang, Luyang Wang, Shun Liu, Lin Chen, Xin Jin, Haitang Liu, Xiaoyuan Liao

{"title":"The in situ green synthesis of metal organic framework (HKUST-1)/cellulose/chitosan composite aerogel (CSGA/HKUST-1) and its adsorption on tetracycline","authors":"Tianhao Wang, Luyang Wang, Shun Liu, Lin Chen, Xin Jin, Haitang Liu, Xiaoyuan Liao","doi":"10.1515/npprj-2024-0053","DOIUrl":"https://doi.org/10.1515/npprj-2024-0053","url":null,"abstract":"Abstract In this work, a strategy of in situ 3D hierarchical porous HKUST-1/cellulose/chitosan (CSGA/HKUST-1) composite aerogels were synthesized using ethylene glycol diglycidyl ether (EGDE) as a cross-linking agent. The effect of EGDE on CSGA/HKUST-1 and the adsorption of tetracycline (TC) was investigated: the composite aerogel (CSGA) was produced by the ring-opening reaction of the epoxy group of EGDE in alkaline solution. The chemical structure of CSGA/HKUST-1 composite aerogel was characterized by FT-IR, XRD and XPS.49.33 % mass loading of CSGA1/HKUST-1 was achieved and N 2 adsorption and desorption experiment showed the BET specific surface area reached 694.514 m 2 g −1 . SEM observed the CSGA/HKUST-1 composite aerogel pores were filled with a large number of octahedral HKUST-1 crystal particles. CSGA/HKUST-1 composite aerogel has excellent tetracycline adsorption capacity (285.7 mg g −1 ), and the removal efficiency remained at 92.7 % after five cycles of adsorption–desorption. The pseudo-second-order kinetic model and Langmuir model adsorption mechanism was successfully concluded. This study can provide ideas for in situ synthesis of MOFs on 3D composite aerogel to prepare adsorption materials, improve the mass loading rate of MOFs and prevent MOFs from falling off, etc., and enrich the application of MOFs materials in the treatment of antibiotic pollutants.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"40 1","pages":"219-233"},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147916293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Comparing classic time series models and state-of-the-art time series neural networks for forecasting as-fired liquor properties. 比较经典时间序列模型和最先进的时间序列神经网络预测烧酒性质。

IF 0.9 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-11-29 eCollection Date: 2025-03-01 DOI: 10.1515/npprj-2024-0025

Jerry Ng, Yuri Lawryshyn, Nikolai DeMartini

{"title":"Comparing classic time series models and state-of-the-art time series neural networks for forecasting as-fired liquor properties.","authors":"Jerry Ng, Yuri Lawryshyn, Nikolai DeMartini","doi":"10.1515/npprj-2024-0025","DOIUrl":"https://doi.org/10.1515/npprj-2024-0025","url":null,"abstract":"The properties of as-fired black liquor dictate kraft recovery boiler operation. If these properties could be forecasted, operations could be adjusted to optimize boiler performance. Here, we compare the performances of classic time series models and two state-of-the-art time series neural networks for forecasting as-fired liquor heating value, viscosity, and boiling point rise at a Canadian mill. Additionally, we show that, like classic time series models, autoregressive neural networks can be regarded as functions of unknown disturbances, which is useful in comparing model complexities. Our results show that classic time series models can accurately forecast as-fired liquor properties and that classic time series models perform comparably to state-of-the-art time series neural networks. We suspect this is due to the high autocorrelation of mill data that results from frequent measurements relative to long residence times. This autocorrelation is suspected to attenuate the cross-correlations between upstream disturbances and as-fired liquor properties. As a result, neural networks, which are useful for accommodating non-linear cross-correlations and dynamics, struggle to outperform classic time series models and may not always be appropriate for forecasting chemical process parameters.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"40 1","pages":"33-45"},"PeriodicalIF":0.9,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11867605/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of three different industrial lignin-based porous carbon electrodes for electrochemical applications 三种不同工业木质素基多孔碳电极的电化学应用比较

4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-11-25 DOI: 10.1515/npprj-2023-0052

Yuyang Ma, Yanjie Yi, Yi Hou, Lirong Lei, Song‐Qing Hu

{"title":"Comparison of three different industrial lignin-based porous carbon electrodes for electrochemical applications","authors":"Yuyang Ma, Yanjie Yi, Yi Hou, Lirong Lei, Song‐Qing Hu","doi":"10.1515/npprj-2023-0052","DOIUrl":"https://doi.org/10.1515/npprj-2023-0052","url":null,"abstract":"Abstract In order to fully utilize industrial lignin, a comparative study was conducted on the properties of porous carbon electrodes prepared by activating different industrial lignin as precursors. The results revealed that carbon electrodes prepared with sodium lignosulfonate (CM-S) exhibited superior specific surface area (SSA) (1,593.5 m 2 g −1 ) and pore volume (PV) (1.03 cm 3 g −1 ) due to the largest relative molecular mass (Mn = 4,539, Mw = 7,290), which is greater than that prepared with alkali lignin (CM-A) and kraft lignin (CM-K), and displayed a well-developed micro-mesoporous macropore hierarchy which was feasible for the efficiency of electron mobility. The electrochemical properties of materials were evaluated, and CM-S showed a mass-specific capacitance of 201 F g −1 at 0.2 A g −1 current density, along with an impressive capacitance retention rate of 54.7 % at 10 A g −1 current density, which is more potential than CM-A and CM-K (specific capacitances: 100 F g −1 and 75 F g −1 respectively). Additionally, maximum energy and power density of CM-S were measured to be 6.98 W h kg −1 and 2306 W kg −1 with excellent retention rate of 95.5 % after 10,000 charge–discharge cycles at a current density of 5 A g −1 . Comparatively, sodium lignosulfonate, compared with alkali lignin and kraft lignin, emerges as a more ideal precursor material for porous carbon electrode.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"39 4","pages":"719-730"},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147914078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of fibre properties in mill scale: high- and low consistency refining of thermomechanical pulp (part 2) – Importance of fibre curl 磨浆机纤维性能的发展：热机械浆的高浓和低浓磨浆（第 2 部分）--纤维卷曲的重要性

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-09-18 DOI: 10.1515/npprj-2024-0049

Rita Ferritsius, Christer Sandberg, Mats Rundlöf, Olof Ferritsius, Geoffrey Daniel, Birgitta A. Engberg, Fritjof Nilsson

{"title":"Development of fibre properties in mill scale: high- and low consistency refining of thermomechanical pulp (part 2) – Importance of fibre curl","authors":"Rita Ferritsius, Christer Sandberg, Mats Rundlöf, Olof Ferritsius, Geoffrey Daniel, Birgitta A. Engberg, Fritjof Nilsson","doi":"10.1515/npprj-2024-0049","DOIUrl":"https://doi.org/10.1515/npprj-2024-0049","url":null,"abstract":"Increased knowledge on the correlation between pulp processing, fibre-properties and paper properties is required to improve fibre-based products. Part 1 of this investigation deals with the effects of HC and LC refining on fibre properties development. LC refining reduced curl and increased tensile index in a manner similar to hot disintegration whereas HC refining increased curl slightly. In this second part, the correlation between fibre curl and handsheet properties of thermomechanical pulp, subjected to low consistency (LC) refining and hot/cold disintegration is examined. Fibre curl decreased by laboratory disintegration and LC refining and showed a linear correlation with increased tensile index and tensile stiffness. Evaluation of fibre property distributions gave a more detailed description of the development of fibre properties. These revealed that disintegration and LC refining gave different fibre curl versus fibre length distributions, even when their average values were similar. These results confirm that analysing fibre property distributions contributes to a more detailed knowledge of the development of pulp quality. Hot disintegration before laboratory testing exaggerated pulp quality and increase internal fibrillation and can therefore be questioned. When hot disintegration is performed before pulp analyses, the impact of LC refining on paper properties may be misjudged.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"187 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142252645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence mechanism of paper mechanical properties: numerical simulation and experimental verification based on a fiber network 纸张机械特性的影响机制：基于纤维网络的数值模拟和实验验证

IF 1.2 4区农林科学

Nordic Pulp & Paper Research Journal Pub Date : 2024-08-30 DOI: 10.1515/npprj-2024-0021

Hao Sun, Yaling Wang, Haojin Li, Lingjun Wei, Yunfeng Zhu, Wanlu Zhang, Wei Wang

{"title":"Influence mechanism of paper mechanical properties: numerical simulation and experimental verification based on a fiber network","authors":"Hao Sun, Yaling Wang, Haojin Li, Lingjun Wei, Yunfeng Zhu, Wanlu Zhang, Wei Wang","doi":"10.1515/npprj-2024-0021","DOIUrl":"https://doi.org/10.1515/npprj-2024-0021","url":null,"abstract":"Paper is a kind of renewable material that exists widely and has important application prospects. However, previous studies have mostly focused on the macromechanical properties of paper but lack micro theory based on paper fiber networks. We present a comprehensive experimental and computational study on the mechanical properties of fibers and fiber networks under the influence of microstructure. A beam-spring model was established based on a beam-fiber network to simulate the behavior of fiber networks. Simulations were performed to demonstrate the influence of fiber microstructural parameters such as fiber bond strength, stiffness, failure strength, size, and network density on mechanical features. Mechanical experiments verified that the fiber bond strength had a greater influence on the paper properties than did the fiber strength. This result is highly consistent with that of the model. All the simulations were validated by experimental measurements. Finally, we provided computational insights into the interfiber bond damage pattern with respect to different fiber microlevels and demonstrated that the proposed beam-spring model can be used to predict the response of fiber networks of paper materials. The above research can be used to optimize the formulation, process, and treatment of paper to meet specific application needs.","PeriodicalId":19315,"journal":{"name":"Nordic Pulp & Paper Research Journal","volume":"2 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142179931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0