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Neuroscience & Medicine 2016年第2期7卷 74-82页

作者： M. Nadeem O. Mufti I. Ahsan R. Naheed S. M. faheem muhammad Nadeem MBBS SUNY Buffalo NY USA Owais Mufti MD SUNY Buffalo NY USA Irfan Ahsan MD Abington Memorial Hospital Abington PA USA Rabia Naheed MBBS Fatima Memorial Hospital Lahore Pakistan Sheikh muhammad faheem MBBS University of IOWA Hospital Iowa City IA USA

Background: A new method of immune-based therapies has been made and applied on multiple sclerosis patients in last decades. Some of these treatments have a high efficacy and reasonable side effects. In slowing disease progression, present treatments have significant limitations, but often associated with significant adverse effects of immunosuppression, with having a bit low capability to counter the disability. Methods: This is a review meta-analysis of treatment of multiple sclerosis. Results: Thus a valuable aim for multiple sclerosis clinical research is to introduce more effective therapies. Conclusion: It is absolutely necessary to increase the individualized therapy planes development in respect to make better planes to disease-modifying treatments.

关键词： Immune Sequestration Multiple Sclerosis Non-Specific Immune Modulation Lymphocyte-Targeted Therapy

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AtDREB2A-CA Influences Root Architecture and Increases Drought Tolerance in Transgenic Cotton

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Agricultural Sciences 2017年第10期8卷 1195-1225页

作者： Maria Eugenia Lisei-de-Sa Fabricio B.M.Arraes Giovani G.Brito Magda A.Beneventi Isabela T.Lourenco-Tessutti Angelina M.M.Basso Regina M.S.Amorim Maria C.M.Silva muhammad faheem Nelson G.Oliveira Junya Mizoi Kazuko Yamaguchi-Shinozaki Maria Fatima Grossi-de-Sa Embrapa Recursos Genéticos e Biotecnologia BrasíliaBrazil Empresa de Pesquisa Agropecuária de Minas Gerais UberabaBrazil Universidade Federal do Rio Grande do Sul Porto AlegreBrazil Embrapa Clima Temperado PelotasBrazil Universidade de Brasília BrasíliaBrazil Embrapa Agroenergia BrasíliaBrazil Japan International Research Center for Agricultural Sciences(JIRCAS) TsukubaJapan Universidade Catolica de Brasilia BrasiliaBrazil

Drought is a major environmental factor limiting cotton (Gossypium hirsutum L.) productivity worldwide and projected climate changes could increase their negative effects in the future. Thus, targeting the molecular mechanisms correlated with drought tolerance without reducing productivity is a challenge for plant breeding. In this way, we evaluated the effects of water deficit progress on AtDREB2A-CA transgenic cotton plant responses, driven by the stress-inducible rd29 promoter. Besides shoot and root morphometric traits, gas exchange and osmotic adjustment analyses were also included. Here, we present how altered root traits shown by transgenic plants impacted on physiological acclimation responses when submitted to severe water stress. The integration of AtDREB2A-CA into the cotton genome increased total root volume, surface area and total root length, without negatively affecting shoot morphometric growth parameters and nor phenotypic evaluated traits. Additionally, when compared to wild-type plants, transgenic plants (17-T0 plants and its progeny) highlighted a gradual pattern of phenotypic plasticity tosome photosynthetic parameters such as photosynthetic rate and stomatal conductance with water deficit progress. Transgene also promoted greater shoot development and root robustness (greater and deeper root mass) allowing roots to grow into deeper soil layers. The same morpho-physiological trend was observed in the subsequent generation (17.6-T2). Our results suggest that the altered root traits shown by transgenic plants are the major contributors to higher tolerance response, allowing the AtDRE2A-CA-cotton plants to maintain elevated stomatal conductance and assimilate rates and, consequently, reducing their metabolic costs involved in the antioxidant responses activation. These results also suggest that these morpho-physiological changes increased the number of reproductive structures retained per plant (26% higher) when compared with its non-transgenic cou

关键词： Dehydration Responsive Element Binding Factors Water Deficit Tolerance Gossypium hirsutum Physiological Phenotyping Transcription Factor Stress-Inducible Promoter

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机器人收获后的快速运送过程中实现葡萄簇低振动的悬挂力分析

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农业工程技术 2021年第33期41卷 89-89页

作者： muhammad faheem 刘继展常国政 Ibrar Ahmad 彭赟江苏大学教育部现代农业装备与技术重点实验室巴基斯坦农业大学农业机械与动力系

在收获期间和收获后期的处理过程中,振动引起的机械损伤会降低鲜葡萄簇的质量、数量和保存期限。在目前的机器人采摘系统中,新鲜葡萄簇是通过从主轴抓取和切割来采摘的,然后在后期处理过程中传送到篮子中。然而,在机器人运输葡萄簇的过... 详细信息

在收获期间和收获后期的处理过程中,振动引起的机械损伤会降低鲜葡萄簇的质量、数量和保存期限。在目前的机器人采摘系统中,新鲜葡萄簇是通过从主轴抓取和切割来采摘的,然后在后期处理过程中传送到篮子中。然而,在机器人运输葡萄簇的过程中,可能会发生严重的簇振动和相应的浆果掉落。因此,该研究旨在进行试验和理论悬挂力分析,以探索机器人运输过程中悬挂葡萄簇的振动机理。使用带有线性致动器的丝杠车床,研究了四种不同速度(0.4,0.6,0.8,1.0m/s)和四种加速度水平(6,8,10,12m/s2)对悬挂葡萄簇振动的影响。通过试验,使用单轴力传感器记录了葡萄簇在致动器启动、恒速和停止阶段的最大悬挂力,并使用数码相机测量了葡萄簇的摆动角度。试验结果表明,在致动器的启动和停止阶段,组件的摆角和悬挂力之间呈线性关系。观察了机器人运输过程中多级集群的振动,发现了执行器突然停止后的循环阻尼行为。在最佳加速度为10米/秒时,葡萄簇在阻尼阶段的悬挂力模拟结果与试验结果一致,R2大于0.90。综上所述,该研究为了解机器人快速运输作业中,浆果掉落损失较低的情况下,悬挂果实的复杂振动机理提供了理论基础。

关键词：葡萄簇振动机构悬挂力力传感器机器人运输机器人搬运

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