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期刊论文 8

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2022 1

2016 2

2011 1

2007 2

2003 2

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整体穿刺 2

产乙酸菌 1

优化 1

伸长断裂 1

剪切应力 1

加工成型 1

塑化输运 1

塑料 1

弯曲伸长 1

弯曲正应力 1

微生物电化学 1

拉伸形变 1

电发酵 1

电活性微生物 1

碳链延长 1

纤维 1

结构参数 1

针尖半径 1

针尖长度 1

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Analysis of differential expression of genes induced by ethephon in elongating internodes of maize plants

Xiaoyi WEI,Weiqiang ZHANG,Qian ZHANG,Pei SUN,Zhaohu LI,Mingcai ZHANG,Jianmin LI,Liusheng DUAN

《农业科学与工程前沿（英文）》 2016年第3卷第3期页码 263-282 doi: 10.15302/J-FASE-2016103

摘要： Plant growth regulators (PGRs) are commonly used in cereal cropping systems to restrict plant height and control lodging. Ethephon has been reported to shorten internodes and increase grain yield of maize. To analyze the transcriptomic profiles of maize internode elongation following ethephon treatment, differentially expressed genes were compared between the treatment and control samples of inbred line Zong 31 using the Affymetrix Maize Genome Array. According to the microarray data, 326 probe sets showed significant change in expression. Further research revealed that the most remarkable effects of ethephon on maize internodes elongation occurred during a 48 h period, when 89 differentially expressed genes were detected. There were dramatic change in transcript levels at 24 h and six Auxin transport genes and four gibberellin biosynthesis pathway genes were differentially expressed in Zong 31 in response to ethephon treatment. In summary, we showed that gaseous ethylene release is involved in internode meristem cell elongation through the regulation of plant hormone signaling in maize. This work provides a platform for studies in which candidate genes will be functionally tested for involvement in internode elongation.

关键词： maize ethephon internode elongation microarray qPCR

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Elongation distribution between tension leveler and temper mill for pickling line 2030 in Baosteel

LIU Xiancui, SU Lanhai, LI Zhongfu, ZHANG Qingdong, FU Zhilin, HE Chun

《机械工程前沿（英文）》 2007年第2卷第3期页码 297-300 doi: 10.1007/s11465-007-0052-4

摘要： Research into plate elongation distribution between the tension leveler and temper mill for pickling line 2030 at Baosteel is conducted. The study, which involved performance testing of mechanics, is designed at different elongation distributions and analyzed from many aspects. Finally, the optimal elongation of the tension leveler and temper mill is given.

关键词： elongation distribution Baosteel Research different elongation performance

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effects of wastewater from various phases of monosodium glutamate production on seed germination and root elongation

LIU Rui, ZHOU Qixing, ZHANG Lanying, GUO Hao

《环境科学与工程前沿（英文）》 2007年第1卷第1期页码 114-119 doi: 10.1007/s11783-007-0021-5

摘要： To make a comprehensive assessment on monosodium glutamate (MSG) wastewater pollution, a pollution exposure experiment was carried out on the seed germination and root elongation of wheat, Chinese cabbage and tomato by using the wastewater discharged from different processing phases of MSG production. The results showed that there were significantly positive linear relationships between the inhibitory rates of wheat seed germination and root elongation and the COD of the mother liquor scraps. The toxicity of MSG wastewater to the test crops was in the order of tomato > Chinese cabbage > wheat, indicating that tomato was the most sensitive to the wastewater, and could be considered as an ideal toxic bioindicator. The half-effect concentrations (IC) based on the seed germination and root elongation of the test crops exposed to the wastewater discharged from various processing phases of MSG production was 22.0 32 432 and 17.3 3320 mg/L, respectively.

关键词： monosodium glutamate different inhibitory pollution exposure half-effect

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正交叠层机织布整体穿刺工艺的纤维弯曲伸长机理

朱建勋,何建敏,王海燕

《中国工程科学》 2003年第5卷第5期页码 59-62

摘要：

分析了正交叠层机织布整体穿刺工艺机织布与钢针的相互作用，提出并建立了纤维的弯曲伸长及伸长断裂模式，讨论了影响纤维弯曲伸长的结构参数。通过理论分析和试验结果说明，绕针弯曲伸长断裂是Z向钢针直径和Z向距比值X的函数，为减少整体穿刺的纤维伸长断裂应选取较小的X比值。

关键词：整体穿刺纤维弯曲伸长结构参数伸长断裂

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塑料加工成型技术的最新研究进展

瞿金平

《中国工程科学》 2011年第13卷第10期页码 58-68

摘要：

依据塑料工业发展低耗、高效、环保型“绿色”加工成型技术的重大需求，随着塑料塑化输运方法的不断演变与创新，在塑料动态加工成型方法和设备的基础上提出和研究了基于拉伸流变的塑料加工成型方法和技术，着重讨论了拉伸形变支配的叶片挤压系统中塑料塑化输运过程、叶片挤压系统的技术特征和叶片塑化输运技术的应用。研究结果表明，与传统技术及设备相比较，这种新技术及设备具有加工历程缩短50 %以上、加工能耗降低30 %左右、混合混炼效果好、制品质量提高、对物料适应性广等优异的技术性能。同时发现，新技术及设备在多相多组份复合材料、剪切热敏感高分子材料等物料体系的加工方面具有独特优势。

关键词：塑料加工成型拉伸形变塑化输运

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Characterization of the tensile properties of friction stir welded aluminum alloy joints based on axial force, traverse speed, and rotational speed

Biranchi PANDA,A. GARG,Zhang JIAN,Akbar HEIDARZADEH,Liang GAO

《机械工程前沿（英文）》 2016年第11卷第3期页码 289-298 doi: 10.1007/s11465-016-0393-y

摘要：

Friction stir welding (FSW) process has gained attention in recent years because of its advantages over the conventional fusion welding process. These advantages include the absence of heat formation in the affected zone and the absence of large distortion, porosity, oxidation, and cracking. Experimental investigations are necessary to understand the physical behavior that causes the high tensile strength of welded joints of different metals and alloys. Existing literature indicates that tensile properties exhibit strong dependence on the rotational speed, traverse speed, and axial force of the tool that was used. Therefore, this study introduces the experimental procedure for measuring tensile properties, namely, ultimate tensile strength (UTS) and tensile elongation of the welded AA 7020 Al alloy. Experimental findings suggest that a welded part with high UTS can be achieved at a lower heat input compared with the high heat input condition. A numerical approach based on genetic programming is employed to produce the functional relationships between tensile properties and the three inputs (rotational speed, traverse speed, and axial force) of the FSW process. The formulated models were validated based on the experimental data, using the statistical metrics. The effect of the three inputs on the tensile properties was investigated using 2D and 3D analyses. A high UTS was achieved, including a rotational speed of 1050 r/min and traverse speed of 95 mm/min. The results also indicate that 8 kN axial force should be set prior to the FSW process.

关键词： tensile properties ultimate tensile strength tensile elongation friction stir welding tool rotational speed genetic programming welding speed

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基于纤维弯曲伸长模式的Z向钢针针尖形态优化

朱建勋,何建敏,王海燕,周之刚

《中国工程科学》 2003年第5卷第9期页码 18-21

摘要：

分析了整体穿刺过程中纤维弯曲伸长机理，建立了钢针的力学模型，分别讨论了作用在针尖上的最大弯曲正应力、最大剪切应力以及穿刺阻力与针尖半径和针尖长度之间的关系，然后根据获得的结果对钢针针尖的形状进行了优化。

关键词：整体穿刺弯曲正应力剪切应力针尖半径针尖长度优化

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微生物电合成中链脂肪酸 Article

褚娜, 郝雯, 吴清莲, 梁勤军, 蒋永, 梁鹏, 任智勇, 曾建雄

《工程（英文）》 2022年第16卷第9期页码 141-153 doi: 10.1016/j.eng.2021.03.025

摘要：

微生物电合成（MES）使用微生物催化剂和电化学手段促进CO₂生物转化，也应用于有机废物生物炼制。本文总结了MES 利用CO₂ 和有机废物产中链脂肪酸（MCFA）的研究现状与发展趋势，对传统发酵产MCFA的基本原理和研究进展进行了归纳。首先，概述了MES产MCFA的相关报道，重点介绍了多电子供体（ED）策略。其次，讨论了MES利用CO₂产MCFA面临的挑战，并针对产甲烷抑制、产乙酸菌三磷酸腺苷（ATP）限制、产有机溶剂阶段提供ED有限进行了详细阐述。再次，分析了电化学手段促进有机废物生物炼制产MCFA的潜力。最后，从多级反应、底物供应、产物提取、微生物代谢路径等角度展望了未来发展方向。

关键词：电发酵微生物电化学产乙酸菌碳链延长电活性微生物