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< Page ,Total 8 >
基于Creo的重组竹材圆榫结构有限元分析
期刊论文 | 2025 , 4 (01) , 1-4 | 木工机床
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Abstract :

文章以重组竹为材料,将Creo Simulate有限元分析应用于圆榫的力学性能模拟、计算及参数优化。通过有限元分析对圆榫的抗扭强度进行参数优化,研究不同圆榫榫头间的宽度d1、圆榫直径D、插入长度l等参数对圆榫榫卯抗扭强度的影响。对优化后的圆榫结构进行疲劳分析得到:圆榫抗扭强度最优径长比c=2.4、径厚比d=0.4,容易疲劳损坏的部位为榫头以及榫头与榫眼相接触的区域。方法可为有限元数值模拟榫卯结构的建模以及圆榫的设计和制造提供参考。

Keyword :

圆榫 圆榫 有限元分析 有限元分析 疲劳分析 疲劳分析 结构优化 结构优化 重组竹 重组竹

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GB/T 7714 朱俊杰 , 王纬 , 关鑫 et al. 基于Creo的重组竹材圆榫结构有限元分析 [J]. | 木工机床 , 2025 , 4 (01) : 1-4 .
MLA 朱俊杰 et al. "基于Creo的重组竹材圆榫结构有限元分析" . | 木工机床 4 . 01 (2025) : 1-4 .
APA 朱俊杰 , 王纬 , 关鑫 , 刘学莘 , 林金国 , 李吉庆 . 基于Creo的重组竹材圆榫结构有限元分析 . | 木工机床 , 2025 , 4 (01) , 1-4 .
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智慧林业背景下翅荚木速生材综纤维素含量机器学习预测
期刊论文 | 2024 , 61 (09) , 25-31 | 林产工业
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Abstract :

林产工业自动化和智慧林业的发展对无损检测手段提出了新的要求,本研究以应用潜力巨大的速生材翅荚木为原材料提出了一种综纤维素快速检测方法。该方法利用傅里叶红外光谱技术,并采用不同的光谱数据预处理方法和机器学习模型来测定翅荚木的综纤维素含量。本研究具体采用了傅里叶红外光谱作为试验数据基础,并测量了翅荚木样本的综纤维素含量及光谱数据。经过MCCV剔除异常值后,选择四种光谱预处理技术(FD/SD/SNV/MSC)对光谱数据进行预处理,并采用PCA算法对其进行特征优化。接着采用BPNN和SVR两种机器学习模型建立起综纤维素含量预测模型,并对不同的处理方法和建模方式进行评估。结果表明:采用SNV和MSC预处理的光谱数据具有较高的综纤维素含量预测能力。此外,采用MSC-PCA-SVR预测模型的预测效果最佳,决定系数为0.97,均方根误差为0.004 596,能够很好地实现对翅荚木综纤维素含量的无损检测,总体而言,基于SVR建立的翅荚木综纤维素含量预测模型预测效果最佳。

Keyword :

傅里叶红外光谱 傅里叶红外光谱 无损检测 无损检测 机器学习 机器学习 综纤维素含量 综纤维素含量 翅荚木 翅荚木

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GB/T 7714 詹伟辉 , 万梦佳 , 陈博文 et al. 智慧林业背景下翅荚木速生材综纤维素含量机器学习预测 [J]. | 林产工业 , 2024 , 61 (09) : 25-31 .
MLA 詹伟辉 et al. "智慧林业背景下翅荚木速生材综纤维素含量机器学习预测" . | 林产工业 61 . 09 (2024) : 25-31 .
APA 詹伟辉 , 万梦佳 , 陈博文 , 关鑫 , 李晓凡 , 刘学莘 . 智慧林业背景下翅荚木速生材综纤维素含量机器学习预测 . | 林产工业 , 2024 , 61 (09) , 25-31 .
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一种突围闯关玩具 ipsunlight
专利 | 2023-12-20 | CN202323482847.1
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Abstract :

本实用新型公开了一种突围闯关玩具,包括棋盘、突围棋子、多个大守卫棋子和多个小守卫棋子;所述棋盘包括底盘和边框;所述底盘上设置有网格;所述底盘上端设置有多个纵向滑槽和横向滑槽;所述纵向滑槽和横向滑槽均位于网格格子的中间位置;所述突围棋子、大守卫棋子和小守卫棋子的宽度均与网格的格子宽度相同;所述突围棋子和小守卫棋子的长度是宽度的两倍;所述大守卫棋子的长度是宽度的三倍;所述突围棋子、大守卫棋子和小守卫棋子下端固定有滑块;所述滑块嵌入纵向滑槽或横向滑槽内;所述边框上设置有出口;因此,该实用新型在保持良好的益智性和娱乐性的同时,降低了游戏难度,便于游戏的推广。

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GB/T 7714 田威威 , 杜光耀 , 余欢乐 et al. 一种突围闯关玩具 : CN202323482847.1[P]. | 2023-12-20 .
MLA 田威威 et al. "一种突围闯关玩具" : CN202323482847.1. | 2023-12-20 .
APA 田威威 , 杜光耀 , 余欢乐 , 陈雨茜 , 郭凯 , 刘学莘 . 一种突围闯关玩具 : CN202323482847.1. | 2023-12-20 .
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基于有限元法的竹集成材新中式椅轻量化设计
期刊论文 | 2023 , 60 (05) , 39-44 | 林产工业
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Abstract :

以竹集成材为原料,开发设计了一款新中式椅,并基于有限元分析技术,利用ANSYS Workbench对该椅进行静力学分析,根据所得位移云图与应力云图,针对竹集成材家具产品“自重”大的问题,对该椅进行轻量化设计。在结构优化设计所得参数基础上,综合考虑椅子的整体造型,以及各部件之间尺寸协调性,最终得到耗材最少、质量最轻、结构最优、具有现代感的竹集成材新中式椅设计方案。

Keyword :

ANSYS Workbench ANSYS Workbench 新中式椅 新中式椅 有限元法 有限元法 竹集成材 竹集成材 结构分析 结构分析

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GB/T 7714 杜光耀 , 龚京鸿 , 刘学莘 . 基于有限元法的竹集成材新中式椅轻量化设计 [J]. | 林产工业 , 2023 , 60 (05) : 39-44 .
MLA 杜光耀 et al. "基于有限元法的竹集成材新中式椅轻量化设计" . | 林产工业 60 . 05 (2023) : 39-44 .
APA 杜光耀 , 龚京鸿 , 刘学莘 . 基于有限元法的竹集成材新中式椅轻量化设计 . | 林产工业 , 2023 , 60 (05) , 39-44 .
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Mn/O co-doped Bi2S3 bimetal oxysulfide catalyst for highly efficient reduction of organic and hexavalent chromium pollutants in the dark SCIE
期刊论文 | 2023 , 33 | MATERIALS TODAY CHEMISTRY
WoS CC Cited Count: 23
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Abstract :

Mn and O co-doped Bi2S3 (labeled as BiMnOS) catalyst was synthesized using different amounts of Mn precursor (MnCl2.4H2O) by a simple and feasible method and characterized by various techniques. The doped Mn and O improve the energy band structure and morphology, reduce the charge transfer resistance, increase the electrochemically active surface sites, and the heterovalent Mn3+/Mn2+ states in Mn/O-Bi2S3 enhances the electron lifetime and facilitates fast electron transfer, which accelerates the pollutants reduction reaction. The BiMnOS-3 at n(Mn): n(Bi): n(C2H5NS) = 4: 1: 4 has the best-reducing properties. 10 mg BiMnOS-3 ultimately reduced the 20 ppm 100 mL 4-aminophenol (4-NP) solution in the presence of NaBH4 within 14 min, and the reduction rate constant of 0.3514 min-1 was 12.5 times that of BiOS and 11.7 times that of MnOS. The reduction reactions of methyl orange (MO), methylene blue (MB), Rhodamine B (RhB), and Cr (VI) were also completed within 8, 10, 28, and 24 min, respectively. The catalytic activity of BiMnOS-3 remained above 90.6% after 6 repeated tests for the reduction of 4-NP, which showed good cycling stability. Therefore, this study verified that the suitable ratio of the metal precursors plays a vital role in designing novel, efficient, and synergistically defect-attired bimetal oxysulfide catalysts.

Keyword :

Bi 2 S 3 phase Bi 2 S 3 phase Bimetal oxysulfide Bimetal oxysulfide Mn/O co-doping Mn/O co-doping Organic reduction Organic reduction Under the dark Under the dark

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GB/T 7714 Wu, Binghong , Su, Zhengjie , Wu, Qinhan et al. Mn/O co-doped Bi2S3 bimetal oxysulfide catalyst for highly efficient reduction of organic and hexavalent chromium pollutants in the dark [J]. | MATERIALS TODAY CHEMISTRY , 2023 , 33 .
MLA Wu, Binghong et al. "Mn/O co-doped Bi2S3 bimetal oxysulfide catalyst for highly efficient reduction of organic and hexavalent chromium pollutants in the dark" . | MATERIALS TODAY CHEMISTRY 33 (2023) .
APA Wu, Binghong , Su, Zhengjie , Wu, Qinhan , Kuo, Dong-Hau , Zhang, Pengkun , Chen, Longyan et al. Mn/O co-doped Bi2S3 bimetal oxysulfide catalyst for highly efficient reduction of organic and hexavalent chromium pollutants in the dark . | MATERIALS TODAY CHEMISTRY , 2023 , 33 .
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Co/S co-doped Mn3O4-based sulfur-oxide nano-flakes catalyst for highly efficient catalytic reduction of organics and hexavalent chromium pollutants SCIE
期刊论文 | 2023 , 55 | JOURNAL OF WATER PROCESS ENGINEERING
WoS CC Cited Count: 26
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Abstract :

Co/S co-doped Mn3O4 bimetal sulfur-oxide nano-flakes catalyst, Co/S-Mn3O4 or MnCoOS, with excellent catalytic reducing performance, was successfully prepared via a feasible method and characterized by different testing techniques. The existence of heterovalent Co2+/Co3+ and Mn2+/Mn3+ states in Co/S-Mn3O4 enhances the electron lifetime and facilitates fast electron transfer, which speeds up the chemical pollutant reduction reaction. Likewise, the valence transition between Co2+/Co3+ and Mn2+/Mn3+ makes the Co/S co-doped in Mn3O4 catalyst increase its electrochemically active surface sites. The MnCoOS catalyst labeled as MnCoOS-3 exhibits good long-term stability and electrochemical performance. The Co/S-Mn3O4 catalytic performance was also tested for the reduction of 4-nitrophenol (4-NP), methyl orange (MO), rhodamine (RhB), methylene blue (MB), and hexavalent chromium Cr(VI). The results exhibited that the MnCoOS-3 catalyst prepared with n(Mn):n(Co):n (C2H5NS) = 1:1:1 had the best catalytic activity, with 10 mg it ultimately reduced 100 ml of 10 ppm 4-NP, 20 ppm MO, RhB, and MB, and 50 ppm Cr(VI) within 12, 10, 10, 20, and 24 min, respectively. Therefore, Co/S codoped Mn3O4 catalysts have excellent catalytic potential application merits in reducing chemical pollutants.

Keyword :

Pollutants reduction Pollutants reduction Under dark Under dark

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GB/T 7714 Chen, Longyan , Su, Zhengjie , Wu, Qinhan et al. Co/S co-doped Mn3O4-based sulfur-oxide nano-flakes catalyst for highly efficient catalytic reduction of organics and hexavalent chromium pollutants [J]. | JOURNAL OF WATER PROCESS ENGINEERING , 2023 , 55 .
MLA Chen, Longyan et al. "Co/S co-doped Mn3O4-based sulfur-oxide nano-flakes catalyst for highly efficient catalytic reduction of organics and hexavalent chromium pollutants" . | JOURNAL OF WATER PROCESS ENGINEERING 55 (2023) .
APA Chen, Longyan , Su, Zhengjie , Wu, Qinhan , Kuo, Dong-Hau , Abdeta, Adugna Boke , Wu, Binghong et al. Co/S co-doped Mn3O4-based sulfur-oxide nano-flakes catalyst for highly efficient catalytic reduction of organics and hexavalent chromium pollutants . | JOURNAL OF WATER PROCESS ENGINEERING , 2023 , 55 .
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Oxygen-doped Sn17Sb6S29 bimetal oxysulfide catalysts for efficient reduction of organic pollutants and hexavalent chromium in the dark SCIE
期刊论文 | 2023 , 9 (2) , 410-425 | REACTION CHEMISTRY & ENGINEERING
WoS CC Cited Count: 15
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Abstract :

Novel oxygen-doped Sn17Sb6S29 bimetal oxysulfide catalysts (labeled as SnSbOS) were successfully synthesized by a facile method via adjusting the H2O2 amount. The samples were characterized by XPS, XRD, UV, SEM, FTIR, and BET, and their catalytic performance was evaluated by reducing a toxic organic compound (4-NP), organic dyes (MO, MB, RhB), and heavy metal ions (Cr(vi)) without light illumination. The results showed that adding an appropriate amount of H2O2 could improve the catalytic performance. The SnSbOS-3 catalyst prepared with 0.4 ml H2O2 had the best catalytic performance, i.e., 100 ml of 20 ppm 4-NP solution was completely reduced by 5 mg SnSbOS-3 in 8 min. In addition, 5 mg SnSbOS-3 also completely reduced 100 ml solutions of 50 ppm MO, RhB, MB, and Cr(vi) within 6, 6, 8, and 6 min, respectively. The oxygen doping can adjust the band energy structure and increase the active surface sites of the SnSbOS catalyst. Hydrogen peroxide regulating the various valence states of Sn in the catalyst can promote electron transfer and improve the activity of the catalyst. Therefore, SnSbOS is an effective catalyst for reducing toxic organics, organic dyes, and heavy metal ions and has great potential for industrial applications.

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GB/T 7714 Huang, Ting , Li, Ping , Wu, Qinhan et al. Oxygen-doped Sn17Sb6S29 bimetal oxysulfide catalysts for efficient reduction of organic pollutants and hexavalent chromium in the dark [J]. | REACTION CHEMISTRY & ENGINEERING , 2023 , 9 (2) : 410-425 .
MLA Huang, Ting et al. "Oxygen-doped Sn17Sb6S29 bimetal oxysulfide catalysts for efficient reduction of organic pollutants and hexavalent chromium in the dark" . | REACTION CHEMISTRY & ENGINEERING 9 . 2 (2023) : 410-425 .
APA Huang, Ting , Li, Ping , Wu, Qinhan , Abdeta, Adugna Boke , Kuo, Dong-Hau , Zhang, Hanya et al. Oxygen-doped Sn17Sb6S29 bimetal oxysulfide catalysts for efficient reduction of organic pollutants and hexavalent chromium in the dark . | REACTION CHEMISTRY & ENGINEERING , 2023 , 9 (2) , 410-425 .
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玩具(基于榫卯结构的牛生肖) incoPat ipsunlight
专利 | 2023-04-11 | CN202330191531.3
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1.本外观设计产品的名称:玩具(基于榫卯结构的牛生肖)。2.本外观设计产品的用途:作为玩具使用。3.本外观设计产品的设计要点:在于形状。4.最能表明设计要点的图片或照片:立体图。

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GB/T 7714 杜光耀 , 包新德 , 周宇豪 et al. 玩具(基于榫卯结构的牛生肖) : CN202330191531.3[P]. | 2023-04-11 .
MLA 杜光耀 et al. "玩具(基于榫卯结构的牛生肖)" : CN202330191531.3. | 2023-04-11 .
APA 杜光耀 , 包新德 , 周宇豪 , 杨俊 , 刘学莘 . 玩具(基于榫卯结构的牛生肖) : CN202330191531.3. | 2023-04-11 .
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玩具(基于榫卯结构的兔生肖) incoPat ipsunlight
专利 | 2023-04-11 | CN202330191530.9
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1.本外观设计产品的名称:玩具(基于榫卯结构的兔生肖)。2.本外观设计产品的用途:作为玩具使用。3.本外观设计产品的设计要点:在于形状。4.最能表明设计要点的图片或照片:立体图。

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GB/T 7714 杜光耀 , 周宇豪 , 杨俊 et al. 玩具(基于榫卯结构的兔生肖) : CN202330191530.9[P]. | 2023-04-11 .
MLA 杜光耀 et al. "玩具(基于榫卯结构的兔生肖)" : CN202330191530.9. | 2023-04-11 .
APA 杜光耀 , 周宇豪 , 杨俊 , 刘学莘 . 玩具(基于榫卯结构的兔生肖) : CN202330191530.9. | 2023-04-11 .
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一种俄罗斯巧块拼图玩具 incoPat ipsunlight
专利 | 2023-04-18 | CN202320865869.7
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Abstract :

本实用新型公开了一种俄罗斯巧块拼图玩具,包括多个拼图模组、模具板和承印板;所述拼图模组包括田字型拼块、凸型拼块、“Z”型拼块、“L”型拼块和“一”型拼块;所述田字型拼块、凸型拼块、“Z”型拼块、“L”型拼块和“一”型拼块均分别由四个正方体拼接固定而成,每个正方体的侧壁上均固定有压印凸块;所述模具板放置于承印板上方;所述模具板上设置有网格;所述网格的每个格子内均纵向设置有导向槽;所述承印板上端与网格对应的地方设置有承压槽;所述承压槽内铺设有橡皮泥;所述压印凸块从上到下紧密穿过导向槽并嵌入橡皮泥内;因此,该实用新型可持续挖掘儿童的智力,趣味性强,灵活性高。

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GB/T 7714 杜光耀 , 田威威 , 石梦瑶 et al. 一种俄罗斯巧块拼图玩具 : CN202320865869.7[P]. | 2023-04-18 .
MLA 杜光耀 et al. "一种俄罗斯巧块拼图玩具" : CN202320865869.7. | 2023-04-18 .
APA 杜光耀 , 田威威 , 石梦瑶 , 郭凯 , 李若茜 , 刘学莘 . 一种俄罗斯巧块拼图玩具 : CN202320865869.7. | 2023-04-18 .
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