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'effort go to waste. I listened to my parents and followed my instincts and went back home. Going back home was very tough because it would create a big distance between me and my Chinese girlfriend at that time. I tried to break up with her because I didn’t have enough hope that I would come back to china. But she didn’t give up on me. She told me it doesn’t matter how long it takes , she is going to wait for me because she believed destiny would some how bring us back together. I was very touched by her words and decided to have a distant relationship with her. I remember the day I left china for home was one of the saddest days of my life. The tears in her eyes tore my soul apart. We decided to connect everyday through wechat and it wasn’t easy. We promised each other not to give up and also make a plan for our future.,The plan was to save up money and move to another country with her.,But life back home was very hard. I worked in the hospital for almost two years but I couldn’t save up any amount of money. I still had to live with my mother , drive my fathers old car and take pocket money from my father. I thought about it very well and realised this isn’t the kind of life for me.,Although my family didn’t agree I left my medical career and came back to china to be with the love of my life and look for an opportunity to do something more profitable with my life.,At the beginning it was very hard. I remember renting a very small room which was in a very bad condition. I shared a bathroom and kitchen with strangers and it was very awful. Sometimes I would wake up in the morning to use the toilet and there would be very beautiful parcel waiting for me.I remember spending a hundred rmb a week. Instant noodles was my hero around that time. Things were really tough but I kept on fighting. I kept on looking for opportunities. I tried mcing , I tried rap performances, I tried a live streaming job, I tried music production, I tried tutoring kids, I kept on trying and trying. I always had a cv and an introduction video on stand by .,One day ,a friend posted on wechat that a famous speaker needed some help with his English. This involved a lot of traveling and was really far from my girlfriend. Making decision was a little tough but I kept it at the back of my head that I was coming here not only to help him with English but also gain more experience and also to keep on fighting for an opportunity to do something , something that would influence people in a positive way.,I remember the first day I met hanger, we were at Dongguan, I was very excited to see him. He sent Jeff one of his young assistants to pick me up because he was busy as usual. I remember getting into the hotel. My first thoughts were wow this place is freaking beautiful my first time ever stepping foot into a five star hotel. I took my luggage into my room and met him down stairs at the conference room. I got there and I saw the lady boss herself in front of everyone doing 500 push ups on stage , I remember it was very tough she was sweating , she was in tears and laughing at the same. I didn’t get it at that time and my first impression was , who are these crazy people?,But the moment she completed those 500 push ups and did an extra 36 she gained my complete respect, I started to see her as a completely different person. I ve been with hanger for two months. I can tell you being here has been such a great honour. This experience has had such a great impact on my life. I ve learned how to communicate, I have learned how to understand others more. I ve learned how to perceiver, I ve learned how to dream even bigger.,Meeting successful people and spending time with them is such an eye opener, its such a great opportunity to learn. Quietly observing them, how they live , experiencing sleepless nights with them, listening to their stories , looking at how they grew up and where they are now has had a great impact in my life and has totally changed the way I think in a completely different way.,Its such a great honour being here you all. Its such a great honour learning with you all.,I know and believe with time as I keep on fighting I ll definitely get to my destination. I will get good results , I ll achieve that greatness I ve always been dreaming about.,I have said a lot of things and some of you may wonder what is the point?,And my answer is its ok to be different from everybody, its ok to have your own opinion, its if others see you as a strange person. Its ok. Others might have their own opinion about you and that’s ok. Once you know what youre about and you stay focused and you keep on fighting you ll get good results and that’s when everybody who doubted you , anybody who had a funny impression about you will get to understand why you choose live different. That is how you set a legacy. That is how you become a role model, that is how you influence peoples lives.,My name is George,Am from Ghana west Africa,Thank you'
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努力是浪费。我听从父母的话，听从我的直觉，回家了。回家是非常困难的，因为那会给我和我的中国女友造成很大的距离。我试图和她分手，因为我没有足够的希望回到中国。但她没有放弃我。她告诉我不管花多长时间，她都会等我，因为她相信命运会让我们重归于好。她的话深深打动了我，我决定和她保持一种疏远的关系。我记得我离开中国回家的那一天是我一生中最悲伤的日子之一。她眼中的泪水使我的灵魂四分五裂。我们决定每天都通过微信连接，这并不容易。我们彼此承诺不放弃，也为我们的未来制定了计划。,计划是存钱和她一起搬到另一个国家去。,但是回家的生活很艰难。我在医院工作了将近两年，但我没能存多少钱。我还得和母亲住在一起，开着父亲的旧车，从父亲那里拿零用钱。我想得很好，意识到这不是我的生活。,虽然我的家人不同意，我离开了我的医疗事业，回到中国是为了热爱我的生活，并寻找一个机会，为我的生活做些更有利可图的事情。,一开始很难。我记得我租了一个非常小的房间，这是一个非常恶劣的条件。我和陌生人共用一个浴室和厨房，这很糟糕。有时候我早上起来用厕所，会有一个非常漂亮的包裹等着我，我记得一周花一百元。方便面当时是我的英雄。事情真的很艰难，但我继续战斗。我一直在寻找机会。我尝试过mcing，我尝试过饶舌音乐表演，我尝试过现场流媒体工作，我尝试过音乐制作，我尝试过辅导孩子，我不断尝试。我总是有一份简历和一个介绍视频在待命。,一天，一位朋友在微信上说一位著名的演讲者需要一些英语帮助。这涉及到很多旅行，而且离我女朋友很远。做决定有点困难，但我一直在想，我来这里不仅是为了帮助他学英语，而且为了获得更多的经验，也为了一个机会去做一些事情，一些事情会以积极的方式影响人们。,我记得我第一天见到汉格，我们在东莞，见到他我很兴奋。他派杰夫一个年轻助手来接我，因为他像往常一样忙。我记得我进了旅馆。我的第一个想法是哇，这个地方真是太美了，我第一次踏进一家五星级酒店。我把行李拿到房间里，在会议室的楼梯上碰到了他。我到了那里，看到女老板在台上做了500个俯卧撑，我记得她很难受，出汗了，她哭了，笑了。当时我不明白，我的第一印象是，这些疯子是谁？,但当她完成了500个俯卧撑，又做了36个俯卧撑的时候，我完全尊重了她，我开始把她看作一个完全不同的人。我和汉格在一起已经两个月了。我可以告诉你，能来这里是我的荣幸。这次经历对我的生活产生了很大的影响。我学会了如何沟通，学会了如何更多地理解他人。我学会了感知，学会了做大梦。,与成功人士会面并与他们共度时光是一件令人大开眼界的事，也是一个学习的好机会。静静地观察他们，他们是如何生活的，和他们一起度过了不眠的夜晚，倾听他们的故事，观察他们是如何长大的，以及他们现在在哪里，这对我的生活产生了巨大的影响，完全改变了我以完全不同的方式思考的方式。,你们在这儿真是太荣幸了。和你们一起学习真是太荣幸了。,我知道并相信随着时间的推移，随着我继续战斗，我一定会到达我的目的地。我会取得好的成绩，我会实现我一直梦想的伟大。,我说了很多事情，你们中的一些人可能会想知道这有什么意义？,我的回答是，和每个人不同是可以的，有自己的观点是可以的，如果别人把你看作一个陌生人。没关系。其他人可能对你有自己的看法，没关系。一旦你知道自己在做什么，保持专注，继续战斗，你就会得到很好的结果，当所有怀疑你的人，任何对你有好感的人，都会明白为什么你选择不同的生活。这就是你如何设置遗产的方式。这就是你如何成为一个榜样，这就是你如何影响人们的生活。,我叫乔治,来自加纳-西非,谢谢你。
'Enhancement of phenol degradation under high salinity conditions by Rpf and exploration of highly efficient salt-tolerant phenol-degrading resuscitated strains especially Pseudomonas SAS 26'
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RPF强化高盐度条件下苯酚降解及高效耐盐性酚降解复苏菌株特别是假单胞菌SAS 26的探索。
'Summary, Conclusions and Recommendations,6.1 SUMMARY,This thesis focus on the development of the modern track design especially the floating slab track system FST to investigate the reduction of vibration course by train operation, this is due to the previous researches in dynamic analysis which indicates that it cannot only eliminate noise and vibrations but also it can avoid resonance. In this study, the standard values of a Floating Slab Track system were modeled using two-dimensional (2D) finite element model (FEM). ABAQUS software is used to model and fully populated with key variables such as slab length and thickness, vertical isolator stiffness, and Young’s modulus. Track vibration reduction test was also carried out indoors with fixed rail on the concrete track bed with double-layer nonlinear vibration damping fasteners and elastic strip type III split fasteners respectively. The research results provide a better understanding of several parameters pertinent to floating slab track in control of train vibration, which include the effect of the slab length. A formula for calculating the additional rail stress of a Floating Slab Track system was proposed based on combined use of the improved empirical models and results obtained from the numerical modeling, The merit of the design method is that the slab length can reduce not only the track vibration, but can also reduce resonance, and it has overcome most limitations of the existing design methods. The outcomes of the findings were synthesized into additional stress formula, which facilitate the use of the design method by railway engineers for routine design practice. In the preceding section, the key observations from each chapter are summarized in a sequential order.,Chapter 2 presented a brief an overview of the different components of slam track structure, history and development of different designs of slab track including Tokaido Shinkansen tracks in Japan, Rheda Germany, and CRTS I , CRTS II and CRTS III in China. And their economic benefits was also discussed.,In Chapter 3, a brief literature about the floating slab track (FST) system was introduced including three types, and how to control train vibration using the FST system, the Characteristics of a Floating Slab Track Based on Longitudinal Interaction Analysis Was modeled in using a finite element, and both the methodology Numerical Results and were Discussed, and the Formula for calculating the Maximum Additional Rail Stress was developed. Finally, conclusions based on the simulation were drawn.,Chapter 4 Describes the TRACK VIBRATION REDUCTION TEST and its principal, apparatus, procedures, inspection method and the test results were show in table 4.1.,Chapter 5 discuss the Design and Application Of The Floating Slab System, the theoretical background for numerical simulation of ballasted track, the mathematical model was develop, floating track slab systems for reducing ground- borne noise and vibration from rail vehicles was also discussed, and a single degree-of-freedom model (SDOF) was modeled, the empirical model was develop, and the possible improvements to theoretical models, and results and conclusions was also drawn base on the empirical, mathematical, and theoretical models.,Chapter 6 presents the summary, conclusions and recommendations for further studies based on the current research are given. And finally, a list of references and appendices follow Chapter 6.,6.2. Conclusions,In this study, a Floating Slab Track by means of a track-slab-isolator interaction analysis. Parametric studies were conducted on the geometry and material properties of a Floating Slab Track to investigate the key behaviors of a Floating Slab Track. Many Floating Slab Track system cases were modeled and analyzed from a standard case to investigate the response behavior of a Floating Slab Track. The results from the analysis were used in a proposed formula for additional rail stress of a Floating Slab Track system. The following conclusions were derived from the research. The results of additional rail stresses demonstrate that temperature, bending, and shrinkage produce greater stresses on the Floating Slab Track system than acceleration and breaking. It has been shown that slab length is the most sensitive parameter influencing the additional rail stress; the maximum slab length for a standard FST is 54.5 m with stoppers and 24.5 m without stoppers, a significant difference. For this reason, stoppers should be used and carefully installed to optimize the overall function of the Floating Slab.,From the Track vibration reduction test conducted in chapter 4, the test results shows that the different types of fastener’s can also play a key role in controlling the train vibration by its stiffness and the isolator stiffness can have a key role in observing the track vibration by damping.,And also the stiffness value (SS) obtained from the damping ratio taste and the attenuation curve calculated under free vibration from the vibration isolator taste has both proved that we can reduced the track vibration by both stiffness and damping ration.,6.3. Recommendations for future work,Although the proposed formula for calculating the additional rail stress of a Floating Slab Track system believed to provide excellent approach for modern railway track in controlling not just the vibration, but also the resonance, further studies on the following aspects are recommended:, Since the proposed formula for calculating the additional rail stress of, Floating Slab Track system parameters are taken from table 3.2, which, means any mistake in one parameter can give a wrong results therefore it’s recommended that many calculations are to be done for the Accuracy of the results., The total strain due to concrete shrinkage needs to be calculated separately. Because,UIC code does not include its values., Temperature is one of the important factor that can contribute to the track Vibration due to the expansion of steal during the hot temperature which will cause track irregularity and concrete shrinkage which course cracks in the floating slab track, which will displace the particles of the track due to stress that is Couse by the dynamic load of the train, there further Studies on the effect of temperature in train vibration is need to be study., Although the results obtained from the proposed design method are consistent with the limited field measurements investigated, further verifications of the proposed design method are desirable for more field Measurements.'
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总结、结论和建议,6.1总结,本文以现代轨道设计尤其是浮板轨道系统FST为研究对象，对列车运行时的减振过程进行了研究，这是由于以往的动力学分析研究表明，浮板轨道系统不仅能消除噪声和振动，而且能避免共振。本研究采用二维有限元模型（FEM）模拟浮板轨道系统的标准值。ABAQUS软件用于模拟和充分填充关键变量，如板长和厚度、垂直隔振器刚度和杨氏模量。采用双层非线性减振紧固件和三类弹性条分体式紧固件，在混凝土道床上采用固定轨进行室内轨道减振试验。研究结果为列车振动控制中有关浮板轨道的几个参数，包括板长的影响提供了较好的理解。结合改进的经验模型和数值模拟结果，提出了浮板轨道系统附加轨道应力的计算公式，其设计方法的优点是板长不仅可以减小轨道振动，而且可以减小共振，克服了传统方法的不足。现有设计方法的大多数局限性。结果综合成附加应力公式，便于铁路工程师在常规设计实践中使用设计方法。在前一节中，每个章节的主要观察结果按顺序进行总结。,第二章简要介绍了日本东海道新干线、德国瑞达、中国CRTS I、CRTS II和CRTS III等不同类型板式轨道的结构组成、历史和发展。并对其经济效益进行了探讨。,第三章简要介绍了浮板轨道系统的三种类型，以及如何利用浮板轨道系统控制列车振动，利用有限元方法对基于纵向相互作用分析的浮板轨道的特性进行了建模，并给出了计算结果和仿真结果。讨论了钢轨最大附加应力的计算公式。最后得出了基于仿真的结论。,第4章介绍了轨道减振试验的原理、装置、程序、检验方法，试验结果见表4.1。,第五章讨论了浮板系统的设计与应用，有碴轨道数值模拟的理论背景，建立了数学模型，讨论了降低轨道车辆地面噪声和振动的浮板系统，建立了单自由度模型（SDOF）。开发了经验模型，并在经验模型、数学模型和理论模型的基础上，对理论模型进行了可能的改进，得出了结果和结论。,第六章介绍了本课题的研究概况、结论和进一步研究的建议。最后，参考文献和附录的列表遵循第6章。,6.2。结论,本研究以浮板轨道为研究对象，利用轨道板隔振器之相互作用分析。对浮板轨道的几何和材料特性进行了参数化研究，研究了浮板轨道的关键性能。为了研究浮板轨道的响应特性，对浮板轨道系统的多个实例进行了建模和分析。将分析结果应用于浮板轨道系统附加轨道应力的计算公式中。研究得出以下结论。附加钢轨应力的结果表明，温度、弯曲和收缩对浮板轨道系统产生的应力大于加速度和断裂应力。结果表明，板长是影响钢轨附加应力的最敏感参数；标准fst的最大板长为54.5 m（带挡块），24.5 m（不带挡块），差异显著。为此，应使用塞子并仔细安装，以优化浮板的整体功能。,通过第四章进行的轨道减振试验，试验结果表明，不同类型的紧固件对列车振动的刚度控制也起着关键作用，隔振器刚度对阻尼观测轨道振动起着关键作用。,同时，由阻尼比味觉得到的刚度值（SS）和由隔振器味觉计算的自由振动下的衰减曲线都证明了通过刚度和阻尼比都可以减小轨道振动。,6.3。对今后工作的建议,虽然所提出的浮板轨道系统附加轨道应力计算公式被认为是现代铁路轨道控制振动和共振的极好方法，但建议对以下方面进行进一步研究：,·由于建议的轨道附加应力计算公式,·浮板轨道系统参数见表3.2。,表示一个参数中的任何错误都可能导致错误的结果，,因此，建议对结果的准确性进行许多计算。,混凝土收缩引起的总应变需要单独计算。因为,UIC代码不包括其值。,·温度是引起轨道振动的重要因素之一，因为高温时钢材的膨胀会导致轨道不规则和混凝土收缩，从而在浮板轨道上形成裂缝，从而在动荷载引起的应力作用下使轨道颗粒位移。对列车而言，温度对列车振动的影响有待进一步研究。,·尽管从建议的设计方法中获得的结果与所调查的有限现场测量结果一致，但对于更多的现场测量，建议的设计方法的进一步验证是可取的。。
'3.4. Characteristics of a floating slab track based on longitudinal interaction analysis,3.4.1 Introduction,Numerous high-speed railway tracks have recently been developed and constructed in many countries in the world. The passage of railway vehicles produces mechanical vibrations across an extensive range of frequencies [13] [14]. Thus, the placement of structural vibration isolation systems is required to decrease vibrations and noise. Floating slab track (FST) systems are the most effective for prevention of mechanical vibrations and ground- borne noise generated by passing trains. Floating Slab Track systems (FST) have been successfully installed in various civil structures such as tunnels, high-speed rail lines, bridges, and viaducts. Various different types of Floating Slab Track (FST) systems have been improved and constructed around the world in places such as Japan, Europe, and North America [15]. Floating Slab Track (FST) systems typically consist of simple masses and springs that can isolate vibrations due to wheel-rail interactions. In an FST system, a continuous welded rail (CWR) is fixed to a massive concrete slab through rail pads with isolators under the concrete track. Although a Floating Slab Track FST is costly and requires greater section heights because of the isolator, this relatively high cost is more than compensated for by the reduced noise and vibration.,According to dynamic analysis studied by Grootenhuis [16] on the effects of a Floating Slab Track on noise and vibration, the results shows that the Floating Slab Track system can not only eliminate noise and vibrations but also avoid resonance. Several researchers with various two- and three-dimensional finite element models later studied effects of noise and vibration on railway tracks [17]. Again, significant reductions in noise and vibration were found in various conditions [18]. However, the effect of slab length is an important factor in Floating Slab Track (FST) development, which has not yet been fully researched. Slab length Influences many aspects of a Floating Slab Track (FST) system, such as additional rail stress, tensile slab stress, and slab displacement. The relationships between additional rail stress and other Floating Slab Track (FST) parameters should be considered as particularly significant associations in the design of an FST system [19]. The key purpose of this study is to investigate the behavior of a Floating Slab Track (FST) by a track-slab-isolator interaction analysis. The key behaviors of a Floating Slab Track (FST) considered in this study are additional rail stress, slab stress and displacement. Floating Slab Track parameters include slab length and thickness, isolator stiffness, and longitudinal stiffness. The sensitivity of each parameter to the key response of a Floating Slab Track was examined based on interaction analysis. This study also determines the maximum length of an FST based on the maximum additional rail stress criterion. There are no fully accepted design criteria in Floating Slab Track systems for railway tracks, especially pertaining to recommendations on the length of the slab.'
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3.4。基于纵向相互作用分析的浮板轨道特性,3.4.1简介,世界上许多国家最近开发建设了许多高速铁路。铁路车辆的通过会在很大的频率范围内产生机械振动[13][14]。因此，需要安装结构隔振系统，以减少振动和噪音。浮板轨道（FST）系统是防止列车通过时产生机械振动和地面噪声最有效的系统。浮板轨道系统（FST）已成功地安装在隧道、高速铁路、桥梁和高架桥等各种土木结构中。世界各地在日本、欧洲和北美等地改进和建造了各种不同类型的浮板轨道（FST）系统[15]。浮板轨道（FST）系统通常由简单的质量和弹簧组成，这些质量和弹簧可以隔离轮轨相互作用产生的振动。在FST系统中，连续焊接钢轨（CWR）通过在混凝土轨道下设置隔振器的轨垫固定在大块混凝土板上。虽然浮板轨道FST成本较高，且由于采用了隔振器，因此需要更大的截面高度，但这种相对较高的成本比通过降低噪音和振动来补偿的成本要高。,根据Grootenhuis[16]对浮板轨道对噪声和振动影响的动力学分析，结果表明浮板轨道系统不仅可以消除噪声和振动，而且可以避免共振。一些研究人员利用各种二维和三维有限元模型，后来研究了噪声和振动对铁路轨道的影响[17]。同样，在各种条件下，噪音和振动都有了显著的降低[18]。然而，板长效应是影响浮板轨道发展的一个重要因素，目前尚未得到充分研究。板长影响浮板轨道（FST）系统的许多方面，如附加轨道应力、张拉板应力和板位移。附加钢轨应力与其他浮板轨道（FST）参数之间的关系应被视为FST系统设计中特别重要的关联[19]。本文的主要目的是通过对浮置板轨道（FST）进行隔振器相互作用分析，研究浮置板轨道（FST）的特性。本研究所考虑的浮板轨道的关键行为是附加轨道应力、板应力和位移。浮板轨道参数包括板长和板厚、隔振器刚度和纵向刚度。在相互作用分析的基础上，研究了各参数对浮板轨道关键响应的敏感性。本研究还根据最大附加钢轨应力准则确定了FST的最大长度。在铁路浮板轨道系统中，没有完全可接受的设计标准，特别是关于板长度的建议。。
'2.9.6 The new Chinese Railway Track System – CRTS III,The innovation investigation programmed for ballast-less track, initiated by the Ministry of Transport (MOT) in the beginning of 2007, which is based on the transferred technologies and the experiments gathered by construction of the Sui-Yu line and Wu-Guang Passenger Dedication Line (PDL). The objective of this project is to improve the design theory, the manufacturing technology, the construction equipment, installing technology and maintenance technology. To develop a Slab track systems, which can meet both the Chinese situational constrains and energy saving at the same time. Also construction materials, (e.g. emulsified asphalt and the cement asphalt mortar) has become the focal point for this investigation. Cheng-Guan intercity railway line between Chengdu and Dujiangyan with a design speed of 200km/h is taken as one of the research projects of this investigation program. Whereby the A new slab track system, the CRTS III, is put forward and taken into operation. The CRTS III was developed during 2007 and 2009 and has the following characteristics:,1. Apart from transformed slab track systems, the manufacturing of CRTS III is more unique. With the help of special form boards, the position of rail seats is adjustable in both lateral and vertical directions (see Fig2.18). Also super-elevation and curves can be set during the manufacturing. The adjustment of the form boards is supported by a special computer program, which can calculate the exact position of the rail seats. The fine adjustment can be realized by the fastening system WJ-8C used in this system to ensure the rail evenness additionally.,2. No connection of slabs on bridges: a sliding layer comprised of two layers of geo-textile and a waterproofed film separates the superstructure and substructure. The purpose of this layer is to keep the expanding and contraction of the slabs without constraint from substructure. Another point is to make the maintenance and repair work easier.,3. Longitudinal coupling of slabs on earthwork and in tunnels: The slab track is connected in the longitudinal direction to improve the driving comfort and reduce the dynamic effect.,4. The CRTS III is a pre-stressed slab track system. The new slabs are built with a total length of 49.8km, including 14.3km on earthwork, 29.2km on bridges and 6.3km in tunnels.'
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2.9.6新的中国铁路轨道系统——CRTS III,交通运输部于2007年初启动的无碴轨道创新研究项目，是在随渝线和武广客运专线建设过程中，通过技术转让和试验总结出来的。本项目的目标是改进设计理论、制造技术、施工设备、安装技术和维护技术。开发既能满足我国国情约束又能节能的板式轨道系统。此外，建筑材料（如乳化沥青和水泥沥青砂浆）已成为本次调查的重点。成都至都江堰的城关城际铁路，设计时速200km/h，是本次勘察项目的研究项目之一。由此，一个新的平板轨道系统，即CRTSIII，被提出并投入运行。CRTS III于2007年和2009年开发，具有以下特点：,1。除了改造的平板轨道系统外，CRTS III的制造更为独特。在特殊模板的帮助下，轨道座的位置可在横向和垂直方向上进行调整（见图2.18）。也可以在制造过程中设置超高和曲线。模板的调整由专门的计算机程序支持，该程序可以计算出轨道座的准确位置。该系统采用的紧固系统WJ-8C可实现微调，另外保证了钢轨的平整度。,2。桥上无板连接：由两层土工织物和防水膜组成的滑动层将上部结构和下部结构分开。该层的目的是在不受下部结构约束的情况下，保持板的膨胀和收缩。另一个要点是使维护和维修工作更容易。,三。土石方与隧道板纵向耦合：板轨纵向连接，提高行车舒适性，降低动力效应。,4。CRTS III是预应力板轨道系统。新建板长49.8km，其中土石方14.3km，桥梁29.2km，隧道6.3km。。