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作者： Deleena johnson 上海交通大学

学位级别：硕士

Economic globalization has entered the era of *** the face of a more complex and ever-changing market environment,companies must lead their employees to adapt to the *** the context of the knowledge economy,the most important assets of enterprises are human resources and intellectual *** ability of enterprise innovation has replaced resources as the decisive factor of the core competitiveness of *** the enterprise,the leaders are the decision-makers and implementers of innovation activities,and the employees are the main body and performers of innovation *** behavior of employees is bound to be influenced by *** influence of *** one of the most important leadership styles that influence employee behavior,this research focuses on the impact of transformational leadership on employee innovation behavior and uses employee organizational identity as a mediator to explore whether it can transform leadership and employee *** behavioral relationship plays a mediating role,and at the same time introduces the organizational innovation atmosphere to explore whether it can play a regulatory role in the relationship between organizational identity and employee innovation ***,carry out literature review and theoretical review,and propose theoretical conceptual models and research ***,analyze the data,empirically analyze the relevant variables,and verify the ***,the data analysis results are discussed,the conclusions are drawn,and the modern enterprise managers are provided with suggestions worthy of reference,and the limitations of this study and the future development direction are pointed *** empirical analysis results of this study show that:(1)The main effect of transformational leadership on employee innovation behavior is significant,employees' innovation behavior needs to be stimulated by external force,transformational leadership can effectively stimulate emplo

关键词： Transformational leadership Organizational innovation atmosphere Organizational identity Employee innovation behavior

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Diagnosis and Treatment of Tolosa-Hunt Syndrome in the Emergency Department

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Open Journal of Emergency Medicine 2017年第1期5卷 1-7页

作者： Kevin Olsen Andrew johnson Sarah Castillo-Jorge Jeffrey Bennett matthew F. Ryan Department of Anaesthesiology University of Florida Gainesville FL USA Department of Emergency Medicine University of Florida Gainesville FL USA Department of Radiology University of Florida Gainesville FL USA

we describe herein a patient who presented with painful ophthalmoplegia and was ultimately diagnosed via magnetic imaging resonance studies and successfully treated for Tolosa-Hunt syndrome. Tolosa-Hunt syndrome is a rare, reversible and painful ophthalmoplegia characterized by recurrent unilateral orbital pain, ipsilateral oculomotor paralysis and prompt response to steroids. Specific criteria for its diagnosis exist and are discussed herein. Individuals affected may display signs of select cranial nerve palsies, ptosis, facial numbness, diplopia, midrosis, and proptosis. Appropriate recognition of the disease can allow for immediate intervention and thus decrease the length and severity of symptoms especially as symptoms may not spontaneously resolve without treatment which leads to unnecessary suffering through pain, anxiety, and decreased vision. we describe the case presentation and keys for diagnosis emergency medicine that physicians should know for this potentially devastating condition.

关键词： Tolosa-Hunt Syndrome Ophthalmoplegia Vision Loss MRI MRA Cranial Nerve Deficits

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Simulation of mode conversion at the magnetopause

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Chinese Science Bulletin 2012年第12期57卷 1375-1383页

作者： LIN Yu johnson Jay wANG XueYi LU QuanMing Physics Department Auburn University Auburn 36849 USA Department of Geophysics and Planetary Science University of Science and Technology of China Hefei 230026 China princeton Plasma Physics Laboratory Princeton University Princeton 08543 USA

Two-dimensional(2-D)and three-dimensional(3-D)hybrid simulations are carried out for mode conversion from fast mode compressional wave to kinetic Alfvn waves(KAws)at the inhomogeneous magnetopause *** cases in which the incident fast wave propagates in the xz plane,with the magnetopause normal along x and the background magnetic field pointing along z,the 2-D (xz)simulation shows that KAws with large wave number kxρi～1 are generated near the Alfve′n resonance surface,whereρi is the ion Larmor *** nonlinear wave properties are manifest in the mode conversion *** of the driver frequency are *** a result of nonlinear wave interaction,the mode conversion region and its spectral width are *** the 3-D simulation,after this first stage of the mode conversion to KAws with large kx,a subsequent generation of KAw modes of finite ky is observed in the later stage,through a nonlinear parametric decay *** the nonlinear cascade to ky can lead to massive transport at the magnetopause,the simulation results provide an effective transport mechanism at the plasma boundaries in space as well as laboratory plasmas.

关键词：模拟模式磁层顶等离子体边界模式转换非线性波非线性参数波动力学混合模拟

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Ignition and combustion of pyrotechnics at low pressures and at temperature extremes

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Defence Technology（防务技术） 2017年第3期13卷 119-126页

作者： Clive woodley R.Claridge N.johnson A.Jones QinetiQ MOD Fort Halstead

Rapid and effective ignition of pyrotechnic countermeasure decoy flares is vitally important to the safety of expensive military platforms such as aircraft. Qineti Q is conducting experimental and theoretical research into pyrotechnic countermeasure decoy flares. A key part of this work is the development and application of improved models to increase the understanding of the ignition processes occurring for these flares. These models have been implemented in a two-dimensional computational model and details are described in this paper. Previous work has conducted experiments and validated the computational model at ambient temperature and pressure. More recently the computational model has been validated at pressures down to that equivalent to 40,000 feet but at ambient temperature(~290 K).This paper describes further experimental work in which the ignition delays of the priming material in inert countermeasure decoy flares were determined for pressures down to 40,000 feet and at temperature extremes of -40℃ and 100℃ Also included in this paper is a comparison of the measured and predicted ignition delays at low pressures and temperature extremes. The agreement between the predicted and measured ignition delays is acceptable.

关键词：压力下降极端温度点火过程烟火二维计算模型燃烧实验工作点火延迟

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Pushover and Time History Analysis of Steel Frames Using SAP2000

Pushover and Time History Analysis of Steel Frames Using SAP...

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作者： ABAYI johnson 湖南大学

学位级别：硕士

本研究的主要目的是测试在自定义荷载下的五层钢框架的模态静力弹塑性分析和时程分析,采用一种强大的结构分析软件工具--SAP2000。本研究对两个五层钢框架进行比较分析,以观察其响应差异,其中一个是完整的5层框架,另一个是相同的仅移除... 详细信息

本研究的主要目的是测试在自定义荷载下的五层钢框架的模态静力弹塑性分析和时程分析,采用一种强大的结构分析软件工具--SAP2000。本研究对两个五层钢框架进行比较分析,以观察其响应差异,其中一个是完整的5层框架,另一个是相同的仅移除其中一个梁和一个柱的五层框架。这项研究由于两个主要原因变得必要:第一个原因是创新结构设计需求的不断增长,要求取消一些梁和柱以达到更优的形状和空间;第二个原因是实现经济效益,以避免浪费。在8度罕遇地震下,拆除了一根梁构件后的钢框架结构Pushover分析得到的基底剪力最大值比完整的钢框架结构基底剪力最大值要小8%左右,而在顶点位移最大值方面,是否拆除梁构件对该结果相对误差为0.1%,几乎没影响。进一步的比较最终的性能点,拆除梁构件后钢框架结构比完整结构结果大1%左右,影响不大。拆除梁构件后,钢框架结构第一振型在第1～3层及第5层振型位移方面没有变化,而其第4层振型位移增大了7.1%。梁的拆除与否对该钢框架结构第1、2、3层的层间位移角没有影响较小,而对第4、5层的层间位移角影响明显。时程分析结果:拆除梁与否对第4层和第5层的层间位移的影响较第1～3层层间位移要大。拆除梁构件后得到层间位移角均值除第2层比拆除前计算结果要小之外,其余楼层的层间位移角结果均要大于拆除前计算结果。

关键词： Pushover分析时间程分析钢框架性能点能力谱

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Experimental Study on the Mechanical Properties,water Resistance and Shrinkage of Basic Magnesium Sulphate Cement Based-RPC

Experimental Study on the Mechanical Properties,water Resist...

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作者： Daniel johnson 西南科技大学

学位级别：硕士

活性粉末混凝土(RPC)是一种新型的水泥基材料,通过提高混凝土的密实度和火山灰活性,并降低水灰比来实现。它具有超高强度、高韧性、高耐用性,现已用于道路、桥梁等。碱式硫酸镁水泥(BMSC)是由轻烧氧化镁粉、七水硫酸镁、水和改性剂制成... 详细信息

活性粉末混凝土(RPC)是一种新型的水泥基材料,通过提高混凝土的密实度和火山灰活性,并降低水灰比来实现。它具有超高强度、高韧性、高耐用性,现已用于道路、桥梁等。碱式硫酸镁水泥(BMSC)是由轻烧氧化镁粉、七水硫酸镁、水和改性剂制成的三元体系胶凝材料,其主要水化产物是5·1·7相。本文设想使用外加剂和钢纤维来改善碱式硫酸镁RPC的耐水性、流动性、强度,并探讨了不同养护制度的效果(常温养护(ATC)、水养护(wC)、标准养护(SC)、热养护(TC))。结果表明,综合考虑其力学性能、耐水性和流动性,5%的CFBC和0.75%的减水剂用量制备的碱式硫酸镁水泥基RPC的效果最佳。碱式硫酸镁水泥基RPC(未掺入钢纤维)的28d抗压强度达到最大值为99.2MPa,而28d抗折强度的最高值为23.2MPa。进一步分析了钢纤维对碱性硫酸镁水泥基RPC流动性和力学参数的影响。结果表明,流动性随着钢纤维掺量的增加而降低,但强度不断提高。钢纤维掺量为2%时,28d抗折强度为25.3MPa,28d抗压强度为119.1MPa,流动性为189.7mm。通过比较浸入水中后的抗压强度和软化系数变化来测试碱式硫酸镁水泥基RPC的耐水性。使用XRD和SEM来分析试样浸水前后的微观结构,碱式硫酸镁水泥基RPC中Mg O水化成片状Mg(OH)的量大幅减少。碱式硫酸镁水泥基RPC显示出良好的耐水性,没有掺入纤维的试样软化系数为0.88,掺入2%钢纤维的试样软化系数为0.95。碱式硫酸镁水泥基RPC的最佳养护制度为:先常温养护7d,然后70℃热养护7 d,最后标准养护14 d,此时试样28d抗折强度为22.0MPa,28d抗压强度为108.8MPa。

关键词： BMSC 防水力学收缩密度 pH

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High resolution imaging using scanning ion conductance microscopy with improved distance feedback control

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Progress in Natural Science:Materials International 2008年第6期18卷 671-677页

作者： Nicholas johnson Victor Ostanin Andrew Shevchuk Yuri Korchev David Klenerman Department of Chemistry University of CambridgeLensfield RoadCambridge CB2 1EWUnited Kingdom Division of Medicine Imperial College LondonMRC Clinical Sciences CentreHammersmith CampusLondon W12 0NNUnited Kingdom

Microscopy is an essential technique for observation on living *** is currently great interest in applying scanning probe microscopy to image-living biological cells in their natural environment at the nanometer *** ion conductance microscopy is a new form of scanning probe microscopy,which enables non-contact high-resolution imaging of living biological *** on a scanned nanopipette in physiological buer,the distance feedback control uses the ion current to control the distance between the pipette tip and the sample ***,this feedback control has diculties over slopes on convoluted cell surfaces,which limits its *** this study,we present an improved form of feedback control that removes the contribution of up to the third-order slope from the ion current signal,hence providing a more accurate signal for controlling the *** show that this allows faster and lower noise topographic high-resolution imaging.

关键词： Living biological cells Scanning ion conductance microscopy Distance feedback control

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Histamine_2-receptor antagonists: Rapid development of tachyphylaxis with repeat dosing

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world Journal of Gastrointestinal Pharmacology and Therapeutics 2014年第2期5卷 57-62页

作者： johnson w McRorie James A Kirby Philip B Miner Quantitative Sciences Procter and GambleMasonOH 45040United States Corporate Pharmacy The Kroger CompanyCincinnatiOH 45246United States Oklahoma Foundation for Digestive Research Oklahoma CityOK 73104United StatesPresident

Histamine_2-receptor antagonists(H_2RAs) are availableover-the-counter (OTC) for the treatment and prevention of heartburn, but more than occasional, singledose use can lead to rapid development of tachyphylaxis. The aim of this review is to assess the publishedevidence regarding the development of tachyphylaxiswith repeat usage of H_2RAs. PubMed and SCOPUS were searched across all years to identify clinical studies thatexamined the development of tachyphylaxis with repeated dosing of H_2RAs. Although a single (first) doseof an H_2RA can be effective for controlling gastric acidand preventing or relieving food-related heartburn, numerous studies confirm that tachyphylaxis, also knownas tolerance, is consistently detected at the first timepoint assessed after the first dose, including the second day and/or second dose. Even if symptom relief isachieved with an H_2RA, it may be due to desensitizationof the esophagus to acid exposure, potentially providingsymptom relief without significantly decreasing esophageal acid exposure. when recommending OTC drugsfor treatment of frequent heartburn, clinicians shouldbe aware of the potential for rapid development oftachyphylaxis in patients who use H_2RAs for 2 or more consecutive days. Even if symptom relief is achieved, it may be due to desensitization of the esophagus to acid by the H_2RA, potentially providing symptom relief without significantly decreasing esophageal acid exposure. Other strategies, such as an OTC proton pump inhibitor, may be needed to optimize management of frequent heartburn.

关键词： Histamine2-receptor antagonist Tachyphylaxis Tolerance Gastric pH

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Plant glycosylphosphatidylinositol anchored proteins at the plasma membrane-cell wall nexus

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Journal of Integrative Plant Biology 2018年第8期60卷 649-669页

作者： Trevor H.Yeats Antony Bacic Kim L.johnson School of Integrated Plant Sciences Section of Plant Biology Cornell University Robert w.Holley Center for Agriculture and Health USDA-ARS Cornell University Australian Research Council Centre of Excellence in Plant Cell walls School of Bio Sciences University of Melbourne La Trobe Institute for Agriculture & Food Department of Animal Plant and Soil Sciences La Trobe University

Approximately 1% of plant proteins are predicted to be post-translationally modified with a glycosylphospha- tidylinositol （GPI） anchor that tethers the polypeptide to the outer leaflet of the plasma membrane. whereas the synthesis and structure of GPI anchors is largely conserved across eukaryotes, the repertoire of functional domains present in the GPl-anchored proteome has diverged substantially. In plants, this includes a large fraction of the GPl-anchored proteome being further modified with plant-specific arabinogalactan （AG） O-glycans. The impor- tance of the GPl-anchored proteome to plant development is underscored by the fact that GPI biosynthetic null mutants exhibit embryo lethality. Mutations in genes encoding specific GPl-anchored proteins （GAPs） further supports their contribution to diverse biological processes, occurring at the interface of the plasma membrane and cell wall, including signaling, cell wall metabolism, cell wall polymer cross-linking, and plasmodesmatal transport. Here, we review the literature concerning plant GPl-anchored proteins, in the context of their potential to act as molecular hubs that mediate interactions between the plasma membrane and the cell wall, and their potential to transduce the signal into the protoplast and, thereby, activate signal transduction pathways.

关键词： GPI Plant glycosylphosphatidylinositol anchored proteins at the plasma membrane-cell wall nexus

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Effect of Laser Injection Seeder on Rotationally Resolved Spectra of Benzonitrile

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Chinese Physics Letters 2010年第8期27卷 77-79页

作者：徐海峰 johnson Philip M. SEARS Trevor J. Institute of Atomic and Molecular Physics 3ilin University~ Changchun 130012 Chemistry Department Stony Brook University Stony Brook NY 11974 USA Department of Chemistry Brookhaven National Laboratory Upton NY 11973 USA

High resolution lasers are necessary to derive the most information from molecular spectra. However, their use uncovers some photophysical processes that compromise the ability to resolve rotational structure. we study the influence of laser optical mode structure on the high resolution spectra of the S1 states of benzonitrile in a supersonic molecular beam using an Ar^＋ pumped cw ring dye laser which is amplified by a pulsed Nd： YA G laser. The latter could be operated either in one optical mode by injecting （seeding） its oscillator with a single mode diode laser, or with many optical modes by not using the seeder. Rotationally resolved lines are obtained when the oscillator of the YAG laser are operated in one single optical mode, but only a continuum is seen when the YAG laser has multiple modes. It is argued that the ac Stark effect is the most probable reason for broadening and blurring the rotational lines.

关键词： Lasers Uses Thinning

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