不可靠的的

The influences of the shock thickness and Alfven waves on the particle acceleration by diffusive shock waves are numerically studied through solving one-dimensional diffusive equation including the second-order Fermi effect. It is shown that the spectral index of the energetic particles strongly depends on the shock thickness. For example, the spectral index increases from 2.1 to 3.7 in the low energy range of 3-10 MeV and from 2.5 to 5.0 in the high energy range of 20-60 MeV as the thickness increases. The spectral index decreases from 4.3 to 3.1 as the particle injection energy increases. The spectral index decreases from 4.0 to 1.8 at the quasi-steady stage with the enhancement of the compression ratio from 2 to 4. The results indicate that under the influence of Alfven waves, the energetic particle spectrum at lower energy becomes flat and the spectral index decreases from 2.5 to 0.6 in the low energy range of 3-10 MeV and from 11.6 to 5.0 in the high energy range of 20-60 MeV. At the same time, the rollover energy reaches 19.6 MeV. The spectral index decreases from 5.8 to 2.9 as the energy density of Alfven waves increase. All these results are basically consistent with the theoretical models, as well as the observations of typical energetic particle events.

通过数值求解包含二阶费米加速的一维扩散方程，探讨在准平行激波条件下激波厚度和级联阿尔芬波对粒子加速的影响，研究粒子分布函数的演化与激波厚度和阿尔芬波强度的内禀关系，计算结果表明：(1)考虑激波厚度时，谱指数明显依赖于激波厚度，随着厚度从0.32增大到2.56，低能端(3-10MeV)谱指数逐渐从2.1增加到3.7，高能端(20-60MeV)谱指数从2.4增大到5.0，能谱逐渐变软；当初始注入粒子动量增大1.3倍，质子能谱指数从4.3减小到3.1，且与零厚度激波加速的谱指数差值缩小；厚度不变时，随着压缩比从2增加到4，准稳态分布时低能端(3-10MeV)粒子能谱指数逐渐从4.0减小到1.8谱变硬；(2)在级联阿尔芬波的影响下，随着时间的增大，粒子在低能处(3-10MeV)的谱指数从2.5减小到0.6高能端(20-60MeV)谱指数从11.6减小到5.0，能谱变硬，拐点能量值从7.5MeV增大到为19.6MeV；随着波的能量密度增大，谱指数从5.8减小到2.9，这表明阿尔芬波强度越大，加速效率越高，通过与激波厚度解析结果和高能粒子事件的观测能谱比较发现两者是一致的，说明数值模拟结果是可靠的。

As one part of the project, the dissertation is developed with thelocalization problem in mobile robot navigation. Combined with "MobileRobot 1 of Central South university (MORCS-1)", a mobile robot designed byus that equipped with a 2D laser measurement system to sense the environmentand the proprioceptive sensors such as the odometry, gyroscope to calculate itsdead reckoning, the approach about the four kind uncertainty factors of mobilerobot localization is studied. These researches include that the error analysisand calibration of position sensors is implemented to reduce the measurementnoise, the 3D kinematic model of mobile robot is built to gain the accuratepose in complex terrain, some work on the automatic detection of static ordynamic obstacles based on laser scanner is investigated to eliminate thedynamic influence of the environment and to realize the reliably absoluteposition, and lastly a robust algorithm is presented to involve the incrementalenvironment mapping and self-localization of mobile robot with unknown dataassociation and to improve the self-localization performance of mobile robotunder unknown environment.

作为该项目研究的一部分，本论文以移动机器人导航中的定位问题为研究内容，利用自行研制的装配有二维激光雷达环境感知系统，并通过里程计、陀螺仪等内部传感器来实现航迹推测的移动机器人"中南移动1号MORCS-1"，重点围绕影响移动机器人系统定位的四类不确定性处理展开研究：通过移动机器人定位传感器的误差分析及校准，旨在消除传感器噪声所带来的测量误差；通过建立移动机器人的三维运动学模型进行航迹推测，以期实现复杂地形下精确的移动机器人本体姿态感受；通过基于激光雷达的动静态障碍的自主检测等相关研究，尽量消除环境的不确定因素影响进而实现可靠的移动机器人绝对定位；通过以上研究，针对未知数据关联下移动机器人增量式环境建图与自定位的研究提出一种鲁棒的滤波算法，改善未知环境中移动机器人自定位的性能。

Equal and exact justice to all men, of whatever state or persuasion, religious or political; peace, commerce, and honest friendship with all nations, entangling alliances with none; the support of the Statein all their rights, as the most competent administrations for our domestic concerns and the surest bulwarks against antirepublican tendencies; the preservation of the General Government in its whole constitutional vigor, as the sheet anchor of our peace at home and safety abroad; a jealous care ofthe right of election by the people -- a mild and safe corrective of abuses which are lopped by the sword of revolution where peaceable remedies are unprovided; absolute acquiescence in the decisions of the majority, the vital principle of republics, from which is no appeal but to force, the vital principleand immediate parent of despotism; a well-disciplined militia, our best reliance in peace and for the first moments of war till regulars may relieve them; the supremacy of the civil over the military authority; economy in the public expense, that labor may be lightly burthened; the honest payment ofour debts and sacred preservation of the public faith; encouragement of agriculture, and of commerce as its handmaid; the diffusion of information and arraignment of all abuses at the bar of the public reason; freedom of religion; freedom of the press, and freedom of person under the protection of the habeas

实行人人平等和真正的公平，而不论其宗教或政治上的地位或派别；同所有国家和平相处、商务往来、真诚友好，而下与任何国家结盟，维护备州政府的一切权利，将它们作为我国最有权能的内政机构，和抵御反共和趋势的最可靠屏障；维持全国政府在宪制上的全部活力，将其作为国内安定和国际安全的最后依靠；忠实地维护人民的选举仅——将它作为一种温和而稳妥的矫正手段，对革命留下的、尚无和平补救办法的种种弊端予以矫正；绝对同意多数人的决定，因为这是共和制的主要原则，反之，不诉诸舆论而诉诸武力乃是专制的主要原则和直接根源；建立一支训练有来的民兵，作为平时和战争初期的最好依靠，直到正规军来接替；实行文职权高于军职权；节约政府开支，减轻劳工负担；诚实地偿还债务，庄严地维护政府信誉；鼓励农业，辅之以商业；传播信息，以公众理智力准绳补偏救弊；实行宗教自由；实行出版自由和人身自由，根据人身保护法和公正选出陪审团进行审判来保证人身自由。

Equal and exact justice to all men, of whatever state or persuasion, religious or political; peace, commerce, and honest friendship with all nations, entangling alliances with none; the support of the State governments in all their rights, as the most competent administrations for our domestic concerns and the surest bulwarks against antirepublican tendencies; the preservation of the General Government in its whole constitutional vigor, as the sheet anchor of our peace at home and safety abroad; a jealous care of the right of election by the people -- a mild and safe corrective of abuses which are lopped by the sword of revolution where peaceable remedies are unprovided; absolute acquiescence in the decisions of the majority, the vital principle of republics, from which is no appeal but to force, the vital principle and immediate parent of despotism; a well-disciplined militia, our best reliance in peace and for the first moments of war till regulars may relieve them; the supremacy of the civil over the military authority; economy in the public expense, that labor may be lightly burthened; the honest payment of our debts and sacred preservation of the public faith; encouragement of agriculture, and of commerce as its handmaid; the diffusion of information and arraignment of all abuses at the bar of the public reason; freedom of religion; freedom of the press, and freedom of person under the protection of the habeas corpus, and trial by juries impartially selected.

实行人人平等和真正的公平，而不论其宗教或政治上的地位或派别；同所有国家和平相处、商务往来、真诚友好，而下与任何国家结盟，维护备州政府的一切权利，将它们作为我国最有权能的内政机构，和抵御反共和趋势的最可靠屏障；维持全国政府在宪制上的全部活力，将其作为国内安定和国际安全的最后依靠；忠实地维护人民的选举仅——将它作为一种温和而稳妥的矫正手段，对革命留下的、尚无和平补救办法的种种弊端予以矫正；绝对同意多数人的决定，因为这是共和制的主要原则，反之，不诉诸舆论而诉诸武力乃是专制的主要原则和直接根源；建立一支训练有来的民兵，作为平时和战争初期的最好依靠，直到正规军来接替；实行文职权高于军职权；节约政府开支，减轻劳工负担；诚实地偿还债务，庄严地维护政府信誉；鼓励农业，辅之以商业；传播信息，以公众理智力准绳补偏救弊；实行宗教自由；实行出版自由和人身自由，根据人身保护法和公正选出陪审团进行审判来保证人身自由。

Labor vanquishes all---not inconstant, spasmodic, or ill-directed labor; but faithful, unremitting, daily effort toward a well-directed purpose. Just as truly as eternal vigilance is the price of liberty, so is eternal industry the price of noble and enduring success.

英国工党征服了一切，不是易变的，间断的，错方向的努力，而是可靠的，持续的，对于一个正确的目标不断的尝试，自主权的价值所在就是像永久的失眠一样真实，所以，坚持不懈的勤奋就是高贵的不朽成就的价值所在。

Through 2D axial symmetrical and 3D scarfed reversal nozzle calculating, the main flowfield characters were given, and compared with the experiment data for validation. Then, the program was given, which can well predict the performance of the scarfed reversal nozzle. In this paper, the flowfields of open cavities with different structures and different parameters were calculated. Some new, full and more reasonable mechanism interprets were given. We think that the essential cause of pressure oscillatory is coherent effect of wave, eddy and cavity structure, but the procedure is different with different cavity structure, it can not use single procedure to described.

通过对二维轴对称和三维斜切反喷管的计算分析，本文给出了流场的主要特征，并采用实验数据进行了验证，形成了分析斜切反喷管可靠的应用方法；本文通过对不同结构形式、不同参数的二维、三维非定常超声速开式空腔流动进行的计算分析，提出了较为全面、合理的空腔压力振荡循环机理的解释，本文认为压力脉动本质上是波、涡以及结构之间相互的干扰和耦合，但干扰的具体过程随空腔结构的不同差别较大，不能采用单一的规律进行描述。

This is the sum of good government, and this is necessary to close the circle of our felicities.

实行人人平等和真正的公平，而不论其宗教或政治上的地位或派别；同所有国家和平相处，商务往来，真诚友好，而下与任何国家结盟，维护备州政府的一切权利，将它们作为我国最有权能的内政机构，和抵御反共和趋势的最可靠屏障；维持全国政府在宪制上的全部活力，将其作为国内安定和国际安全的最后依靠；忠实地维护人民的选举仅——将它作为一种温和而稳妥的矫正手段，对革命留下的，尚无和平补救办法的种种弊端予以矫正；绝对同意多数人的决定，因为这是共和制的主要原则，反之，不诉诸舆论而诉诸武力乃是专制的主要原则和直接根源；建立一支训练有来的民兵，作为平时和战争初期的最好依靠，直到正规军来接替；实行文职权高于军职权；节约政府开支，减轻劳工负担；诚实地偿还债务，庄严地维护政府信誉；鼓励农业，辅之以商业；传播信息，以公众理智力准绳补偏救弊；实行宗教自由；实行出版自由和人身自由，根据人身保护法和公正选出陪审团进行审判来保证人身自由。

A magnificent specimen of manhood he was truly augmented obviously by gifts of a high order, as compared with the other military supernumerary that is (who was just the usual everyday farewell, my gallant captain kind of an individual in the light dragoons, the 18th hussars to be accurate) and inflammable doubtless (the fallen leader, that is, not the other) in his own peculiar way which she of course, woman, quickly perceived as highly likely to carve his way to fame which he almost bid fair to do till the priests and ministers of the gospel as a whole, his erstwhile staunch adherents, and his beloved evicted tenants for whom he had done yeoman service in the rural parts of the country by taking up the cudgels on their behalf in a way that exceeded their most sanguine expectations, very effectually cooked his matrimonial goose, thereby heaping coals of fire on his head much in the same way as the fabled ass's kick.

与另外那个预备役陆军军官（即轻骑兵，说得确切些，第十八骑兵队的一员；是&再见吧，我豪侠的上尉&那样一种极其平庸的类型）相形之下，他确实是位男子大丈夫中的杰出楷模，加以禀赋极高，更是相得益彰。毫无疑问，他（这里指的是已垮台的领袖，而不是另外那个人）有着独特的火暴性子，而她作为一个女人，当然一眼就看得出，并认为惟其如此，他才名扬天下。正当大功即将告成之际，全体司铎、牧师，往昔那些坚定可靠的拥护者，以及他所爱护过的被剥夺了土地的佃户们——他曾在本国乡村以超过其任何乐观期望的劲头替这些佃户辩护，勇往直前为之效劳，而这些人却为了婚姻问题一举把他搞垮，犹如把炭火堆在他的头上，简直就像寓言中那头被踢上一脚的驴而今回顾一下往事，追想事情的整个经过，一切都恍如一场梦。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。