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| 1 | Protective effects of a new metalloporphyrin on paraquat-induced oxidative stress and apoptosis in N27 cells显示文摘Paraquat (PQ, 1,1'-dimethyl-4,4'-bipyridinium ) ,使用得广泛地的除草剂,为 Parkinson 的疾病的发展作为一个潜在的 etiologic 因素被建议了。在最近的年里,许多研究集中于 PQ neurotoxicity 的机制。在这研究,我们检验了锰( III )的 neuroprotective 效果 meso-tetrakis ( N , N'-diethylimidazolium )卟啉( MnTDM ),超级氧化物 dismutase/catalase 模仿,在在 1RB ( 3 )的 导致PQ 的氧化应力和 apoptosis 上一( 27 )( N27 )房间,一根 dopaminergic neuronal 房间线。结果显示 MnTDM 显著地稀释了房间生存能力,谷胱甘肽弄空,和反应的氧种类生产的导致 PQ 的损失。MnTDM 也改善了 apoptosis 的导致 PQ 的词法原子变化和 apoptosis 的增加的率。另外,我们的数据提供 MnTDM 压制了导致 PQ 的 caspase-3 劈开的直接证据,可能 PQ neurotoxicity 的一个关键事件。这些观察建议了那个氧化压力, apoptosis 在导致 PQ 的 neurotoxicity 被含有,这毒性能被 MnTDM 阻止。这些调查结果也为 Parkinson 与氧化应力联系的疾病和另外的混乱建议了一条新奇治疗学的途径。 | Ping Chen Ang Li Mengjie Zhang Meilan He Zhen Chen Xiaokang Wu Chunjun Zhao Shilong Wang Liping Liang | 2008 | Acta Biochimica et Biophysica Sinica2008,40,2: | 4 |
| 2 | International trade,carbon leakage,and CO_2 emissions of manufacturing industry显示文摘Foreign trade drives China's growth,but as the trade scale continues to expand,the carbon emissions also increase quickly.Based on the industry panel data from 1996 to 2010,this paper calculates carbon emissions of 27manufacturing industries.According to the intensity of carbon emissions,this paper divides the manufacturing sectors into low carbon and high carbon manufacturing industry and then analyzes the carbon emission trends.Next,the paper uses the feasible generalized least square regression to verify the existence of environmental Kuznets curve(EKC)of the manufacturing industry's carbon.In order to investigate the carbon leakage problem,the regression also includes the interaction term between trade and industrial value added.Our findings are as follows:the carbon emissions of the whole manufacturing industry and low carbon manufacturing industry accord with the EKC curve,but have a linear relationship with the high carbon manufacturing industry;trade reduces the carbon emissions of the whole manufacturing industry and low carbon manufacturing industry,but it increases those of the high carbon manufacturing industry;for the whole manufacturing industry and low carbon manufacturing industry,there is no carbon leakage,but it exists in the high carbon manufacturing industry.On the whole,pollution haven hypothesis does not hold up in China,and China does not need to limit industry foreign trade to reduce the emission of CO_2.But the manufacturing industry will still be the main engine of the economic growth,and therefore our country should make an effective low-carbon policy,introduce advanced technology,increase R&D investment into lowcarbon technologies,and upgrade and transform the original equipment to change the backward mode of production. | Jingyan Fu Chunjun Zhang | 2015 | Chinese Journal of Population,Resources and Environment2015,13,2: | 3 |
| 3 | A highlyconfigurable cache for low energy embedded systems显示文摘 | Zhang Chunjun Vahid F Najjar W | 2005 | ACM TECS2005,4,2: | 1 |
| 4 | Simulation and optimization of dynamic characteristics of intelligent ac contactor显示文摘 | Zhang Guogang Chen Wei Ke Chunjun | 2010 | International Journal of Applied Electromagnetics and Mechanics2010,33,12: | 1 |
| 5 | The skew-symmetric orthogonal solutions of the matrix equa-tion AX- B显示文摘 | Chunjun Meng Xiyan Hu Lei Zhang | 2005 | Linear Algebra and its Applica-tions2005,402,1: | 1 |
| 6 | Synthesis of a bis-(N-butyl-dithiocarbamato)-nitrido ^99mTc complex:a potential newbrain imaging agent显示文摘 | Zhang Junbo Wang Xuebin Tian Chunjun | 2007 | J Radioaral Nucl Chem2007,273,1: | 1 |
| 7 | The skew-sym- metric orthogonal solutions of the matrix equation AX B显示文摘 | Meng Chunjun Hu Xiyan Zhang Lei | 2005 | Linear Algebra and its Applications2005,402,1: | 1 |
| 8 | Study of the Modeling of Incentive Air Pressure Waves to the Human Ear 显示文摘 | CHEN Chunjun NIE Xicheng ZHANG Min | 2012 | Advanced Materials Research2012,,: | 1 |
| 9 | Simulation and optimization of dynamic characteristics of intelligent AC contactor显示文摘 | Zhang Guogang Chen Wei Ke Chunjun Zheng Peng Geng Yingsan | 2010 | International Journal of Applied Electromagnetics and Mechanics2010,33,: | 1 |
| 10 | A high-density intervarietal map of the wheat genome enriched with markers derived from expressed sequence tags显示文摘 | Shulin Xue Zhengzhi Zhang Feng Lin Zhongxin Kong Yong Cao Chunjun Li Hongying Yi Mingfeng Mei Huilan Zhu Jizhong Wu Haibin Xu Dongmei Zhao Dagang Tian Caiqin Zhang Zhengqiang Ma | 2008 | Theoretical and Applied Genetics2008,,2: | 1 |
| 11 | A high-density intervarietal map of the wheat genome enriched with markers derived from expressed sequence tags显示文摘 | Shulin Xue Zhengzhi Zhang Feng Lin Zhongxin Kong Yong Cao Chunjun Li Hongying Yi Mingfeng Mei Huilan Zhu Jizhong Wu Haibin Xu Dongmei Zhao Dagang Tian Caiqin Zhang Zhengqiang Ma | 2008 | Theoretical and Applied Genetics2008,,2: | 1 |
| 12 | The skew-symmetric orthogonal solutions of the matrix equation AX=B显示文摘 | Meng Chunjun Hu Xiyan Zhang Lei | 2005 | Linear Algebra and its Applications2005,402,1: | 1 |
| 13 | Mapping QTLs associated with Fusarium-damaged kernels in the Nanda 2419?×?Wangshuibai population显示文摘 | Chunjun Li Huilan Zhu Caiqin Zhang Feng Lin Shulin Xue Yong Cao Zhengzhi Zhang Lixia Zhang Zhengqiang Ma | 2008 | Euphytica2008,,2: | 1 |
| 14 | 季节性放牧改变大针茅养分回收和根系养分储存并影响其翌年春季返青生长显示文摘秋季养分回收是草地多年生植物保存和高效利用养分的关键机制。放牧对植物养分回收的影响可能改变根系养分储存,进一步影响植物在翌年春季的返青生长。多数研究关注于放牧草地植物养分回收和保存,而其对植物在翌年春季返青生长的影响研究则较少。本研究以半干旱草原多年生优势禾草——大针茅(Stipa grandis)为模式植物,具体评估了4种季节性放牧管理下(不放牧、春季放牧、夏季放牧和秋季放牧)大针茅植株水平的养分回收特征(养分回收度、回收效率和回收通量)、根系养分动态,以及翌年植物返青状况,旨在探究植物养分回收、根系养分储存和翌年返青生长对不同季节放牧的响应。研究结果显示,(i)大针茅氮回收效率为51%–66%、磷回收效率为58%–80%,养分回收通量在秋季放牧下最低,在春季放牧下最高。(ii)大针茅根系养分储存特征在夏季放牧下显著降低,在春季放牧下轻微下降,而在秋季放牧下则无变化。(iii)翌年春季大针茅返青生长状况在早春放牧下最佳,在秋季放牧下最差,这一现象主要受土壤水分的影响,而与根系养分储存无关。本研究为深入了解植物养分循环过程,建立草原保护和合理放牧管理制度提供了理论依据。 | Tongrui Zhang Frank Yonghong Li Lin Wu Hao Wang Yanlong Li Chunjun Shi | 2023 | Journal of Plant Ecology2023,16,2: | 0 |
| 15 | 去叶时间对半干旱草原植物养分回收和干草生产的影响显示文摘养分回收是植物养分保存的重要策略,其对环境和管理变化的响应关系到生态系统的养分循环和生产。去叶(刈割)是影响草地植物养分回收和生产的重要途径,而去叶时间的影响尚不清楚。本研究以内蒙古典型草原生态系统为对象,设置早期去叶(生物量高峰期之前)、峰期去叶(生物量高峰期)、晚期去叶(养分回收开始后)和不去叶(对照)4个处理,探讨了去叶时间对植物养分回收和生产的影响。通过测定植物物种和群落水平氮(N)和磷(P)回收特征,量化了植物N、P回收通量以及凋落物归还通量和干草输出通量,并评估了不同去叶时间处理下割草草地系统干草产量和质量。研究结果显示,峰期和晚期去叶降低植物群落N、P回收度,而早期去叶则对二者无影响;不同去叶时间处理下植物N、P回收效率相对稳定,仅晚期去叶降低N回收效率。峰期和晚期去叶降低植物群落N、P回收通量和凋落物N、P归还通量,而早期去叶并不影响这些参数。去叶时间降低植物群落养分回收通量,但未改变植物根系养分储存,说明根系养分吸收增加可补偿养分回收通量的降低。草地干草产量和质量在峰期去叶处理下最高,晚期去叶处理下最低。本研究结果为割草草地生态系统养分循环提供了新见解,通过调整刈割时间可以平衡草原的保护与生产,在植物生物量高峰期之前割草可实现保护和可持续生产的双重目标。 | Tongrui Zhang Frank Yonghong Li Hao Wang Lin Wu Chunjun Shi Yanlong Li Jie Hu | 2021 | Journal of Plant Ecology2021,14,1: | 0 |
| 16 | Bionics-based Optimization of Step-climbing Gait in a Novel Mini-RHex Robot显示文摘RHex-style robots can perform manifold moving gaits in different applications,but they have always faced a challenge of climbing up high obstacles.In this paper,the bionics-based gait optimization in an RHex-style robot is proposed for climbing steps at different heights,which even enables the robot to climb up the step with 4.2 times of the leg length.First,a thoracic flexion is designed in the robot,and an algorithm of adjusting body inclination is proposed to perform the rising stage after placing front legs on top of step,which can be applied in different RHex-style robots with different sizes.Especially,when the thoracic flexion is implemented,the robot can climb the higher step with the proposed algorithm.Second,to climbing the higher steps,a claw-shape legs-based algorithm is proposed for robot reaching the higher step and climbing it up.During the vital rising stage,when the front legs of the robot have reached the top of the step,the robot can bend the front body downward with its thoracic flexion like a cockroach,and then lift the front and middle legs alternately to move COM up and forward onto the step.The simulation analysis is utilized to verify the feasibility of the proposed algorithms.Finally,the step-climbing experiments at different heights are performed in our robot to compare with the existing works.The results of simulations and experiments show the superiority of the proposed algorithms for the improved robot due to climbing up the higher steps. | Xingguo Song Jiajun Pan Xiaolong Zhang Chunjun Chen Danshan Huang | 2022 | Journal of Bionic Engineering2022,19,3: | 0 |
| 17 | Cockroach-inspired Traversing Narrow Obstacles for a Sprawled Hexapod Robot显示文摘Inspired by the cockroach’s use of a pitch-roll mode traverses through narrow obstacles,we improve the RHex-style robot by adding two sprawl joints to adjust the body posture,and propose a novel pitch-roll approach that enables an RHex-style robot to traverse through two cylindrical obstacles with a spacing of 90 mm,about 54%body width.First,the robot can pitch up against the obstacle on the one side by the cooperation of its rear and middle legs.Then,the robot rotates one side rear leg to kick the ground fast,meanwhile the sprawl joint on the other side rotates inward to make the robot roll and fall forward.Finally,the robot can rotate the legs on the ground to move the body forward until it crosses the obstacles.In this article,both cylinder and rectangular columns are considered as the narrow obstacles for traversing.The experiments are demonstrated by using the proposed approach,and the results show that the robot can smoothly traverse through different narrow spaces. | Xingguo Song Jiajun Pan Faming Lin Xiaolong Zhang Chunjun Chen Danshan Huang | 2022 | Journal of Bionic Engineering2022,19,5: | 0 |