(文档含英文原文和中文翻译)
中英文资料翻译
Paver screed
1.1 Function Fulfilled by the Screed
The screed, the road paver‘s working tool, fulfils the function of uniformly compacting the paving material across the entire pave width and producing a close-textured and level surface. The screed‘s compacting systems shall pre-compact the mix to the greatest possible extent. This is to minimize the influence of layer thickness upon the amount of subsequent compaction by rolling when bringing about the pavement’s final density.
For pre-compaction, different compacting systems are available:
T = Tamper (an eccentric shaft causes the tamper bar to move up and down)
V = Vibrators(vibrations are generated by an eccentric shaft acting on the screed plates at right angles to the direction of motion)
P = Pressure Bar(s)(the pressure bar(s) are hydraulically pressed onto the mix at a
frequency of 68 Hz (approx.) and a maximum pressure of 130 bar)
P1 = Screed equipped with 1 Pressure Bar
P2 = Screed equipped with 2 Pressure Bar
1.2 Extending Screeds and Bolt-on Extensions
For all VOGELE screeds, bolt-on extensions are available. The VOGELE system of bolt-on extensions allows to easily and sturdily build up screeds to any pave width desired. Even when paving in large widths, VOGELE screeds work with highest precision and achieve superb degrees of uniform density right up to the pavement edges. When fitting bolt-on extensions, care must be taken to ensure that the bottom edge of the screed plate is flush with the adjacent units, otherwise a step may be produced in the pavement or the screed planning angle may change. During the paving process, this can have a negative effect on pre-compaction, surface structure and floating behaviour of the screed.
1.3 Set-Up of the Extending Screed
1. Position both extending units in place so that the screed plate of the basic unit and the screed plates of the extending units are roughly level.
2. Slacken the chains connecting the spindles on the extending unit so that each spindle can be adjusted independently.
3. Carefully lower the screed onto the extending units. Timber should be placed under the middle of the two extending units.
4. Now adjust the screed planning angle via the tow point rams so that the screed plate rests on the timber.
5. Remove the locking screw from the threaded bush on all spindles.
6. Adjust all threaded bushes.
7. Refit the locking screws.
8. Raise the screed and secure it so that it cannot sink.
9. Lay a ruler along the inner and outer spindle pairs and then adjust the height of the
extending unit via the front and rear spindles with the aid of a special wrench, so that the screed plate of the basic unit is level with the trailing edge of the extending unit. Now adjust the planning angle of the extending unit via the front spindle.
10. Reconnect the spindle pairs with the chains.
11. Raise the frame of the extending unit by approx. 4mm so that it roughly corresponds to the planning angle of the screed.
12. During the first on-site job, the height of the extending units must be corrected until a longitudinal step is no longer visible.
1.4 Fixed-Width Screeds
1.4.1 Compacting Systems Installed in Fixed-Width Screeds
TV = Tamper and Vibrators
Installed in:
- SB 250 - SB 300
Recommended for:
- All conventional mixes.
- Materials which are easy to compact or thinner pavement layers.
- Jobs where paving can be done in a largely constant width.
-Large radii.
TP2 = Tamper and 2 Pressure Bars
Installed in:
- SB 250 (and Hydraulic Bolt-on Extensions)
- SB 300 (and Hydraulic Bolt-on Extensions)
Recommended for:
- All conventional mixes.
- A screed in TP2 version achieves a high pre-compaction even of thick pavement layers.
- Mixes which are difficult to compact on account of their grain shape and consistency.
- Jobs where paving can be done in a largely constant width.
- Large radii.
- Less effort required for subsequent compaction by rolling.
TP1 = Tamper and 1 Pressure Bar
Installed in:
- SB 250 (and Hydraulic Bolt-on Extensions)
- SB 300 (and Hydraulic Bolt-on Extensions) Recommended for:
- All conventional mixes.
- Pre-compaction by a screed in TP1 version is higher than by a TV screed, but lower than by a screed in TP2 version.
- Jobs where paving can be done in a largely constant width.
- Large radii.
- Less effort required for subsequent compaction by rolling.
TVP2 = Tamper, Vibrators and 2 Pressure Bars
Installed in:
- SB 250 - SB 300 - SB 250 B
Recommended for:
- Jobs where paving can be done in a largely constant pave width.
- Large radii.
- SB 250, SB 300: All conventional mixes.
- SB 250 B: For paving PCC? as this type of job does not include subsequent compaction by rolling.
1.4.2 Fixed-Width Screeds and Bolt-on Extensions
As a general rule, bolt-on extensions should be fitted symmetrically on both sides of the screed, wherever possible. The advantage of a Fixed-Width Screed is a deeper screed plate of 500mm compared to a screed plate of 250mm found on Extending Screeds. This has a positive effect upon the screed‘s floating behaviour. Moreover, the leading edge of the Fixed-Width Screed forms a single line over the entire pave width and different planning angles do not leave marks in the pavement. Fixed-Width Screeds are capable of handling considerably larger pave widths than Extending Screeds, albeit wi th restrictions as regards the screed‘s variability. As a result, Fixed-Width Screeds are particularly suited to paving long sections with a large, unchanging pave width.
1.4.3 Building Up a Fixed-Width Screed with Bolt-on Extensions
Bolt-on extensions are fitted to enlarge the screed’s width. The trailing edges of the screed plates shall be flush across the entire pave width. The leading edges of the screed plates should be set higher towards the outside by roughly 0.5mm.
In order to prevent the bolt-on extensions from bending towards the rear as a result of the pressure exerted by the mix, horizontal braces must be fitted.
Horizontal braces are to be fitted in such a way that the trailing edges of the screed
plates are flush.
To compensate the uplift at the outer edges of the screed, there should be a light sag of the screed when raised. The magnitude of this sag depends on the pave width. The sag can be adjusted by way of the braces over the screed’s basic unit.
1.5 Set-Up of Tamper
The tamper shall be set to an identical stroke length across the entire pave width. The setting can be changed by simply turning the eccentric bush on the shaft driving the tamper bar. The driving shaft is accessible from behind, so that this can easily be done between job site sections. Adjusting the lower reversal point of the tamper bar, however, takes more time. First, the tamper shields need demounting. Then remove the screws on all shaft brackets. After loosening the locking nut (2), the tamper bar can be adjusted via bolt (1). The height to be set depends on the tamper stroke selected.
1.6 Set-Up of Tamper Shield
The tamper (3) must be set so that it rests on the wear strip (1) across the full width. Then adjust the spring steel bar (2) on the tamper shield by means of screw (4) from
the rear of the screed until a gap of 0.5 - 1mm is obtained between tamper bar and the spring steel bar. Release screws (6) and fit various small shims (5) to align the tamper shield. With the tamper shield correctly aligned, the spring steel bar (2) is at least parallel with the tamper or preferably inclined slightly to the front. Check the clearance between tamper and spring steel bar and correct, if necessary.
Tip!
At a stroke length of 2mm, the tamper bar should be flush with the screed plate (check with your hand).
1.7 Set-Up of Pressure Bar(s)
1. Unscrew the nut (2) with anti-twist device (3) on the hydraulic ram (1) for the pressure bar.
2. Turn the hydraulic ram (1) to adjust the height of the pressure bar. The clearance (7) between pressure bar and bottom edge of the screed plate should be at least 4mm.
3. Check that the hydraulic ram for the pressure bar makes contact with metal plate (5) when retracted.
4. Set pre-tension of spring (6) to
5.5mm via nut (4) to yield a distance (8) of 59.5mm.
5. Resecure the hydraulic ram (3) for the pressure bar.
1.8 Bevel Irons
Bevel irons shape and compact the edges of the pavement. They are available with a bevel edge of 45°and 60°. Their size depends on the thickness of the layer to be paved.A heating rod can be installed as an option to improve the sliding properties of the bevel iron.
1.9 Function Check of Screed Heating
All screed components in contact with the hot mix should be heated to approx. 90 °C before starting work. It is recommended to protect the screed against excessive loss of heat to the surroundings so that the heating power can be utilized effectively, for instance by putting down the screed, preferably on hot mix. Asphalt may stick to the tamper bar, screed plates or pressure bar(s) if the screed temperature is too low. This can lead to the formation of strips and an irregular surface texture. The floating behaviour of the screed may vary before it reaches its operating temperature, with the result that layer thickness may also vary and deviate from the desired one. For the “dash 2“ machines, a monitoring unit for screed heating is available as an optional extra. This feature monitors each single heating rod for proper function and indicates any fault without delay.
Should one of the green indicator lights extinguish over a prolonged period of time, then the reason may be:
n Poor insulation
n Asymmetrical power consumption
n Generator temperature too high
Tip!
Directly after switching on screed heating, correct operation of the heating rods can be checked by cautiously touching the tamper bar, screed plates and pressure bar(s). Advantage：
A failure of heating rods is detected immediately. New parts can be procured without delay to promptly restore the screed‘s full functionality.
Parameters Influencing the Paving Process
2.1 Paving Material
Mix Temperature - The mix temperature should be constant and
high enough to prevent the mix from cooling
before it is laid.
- Paving material that has cooled is harder to
compact.
- The load bearing capacity of the mix, too,
depends on its temperature.
- Feed of the paver with mix shall be planned
with a view to an optimal temperature for
paving.
Grain Size - The maximum grain size should not exceed
1/3 of the layer thickness.
Mix Composition - The composition of the mix should remain
constant throughout the paving job.
Properties of the Mix - Properties of the mix have an influence upon
the screed’s floating behaviour.
- Paving materials with a high bearing capacity
confront the screed with a higher resistance
than materials of poor bearing capacity.
- Conveying and compacting systems can be set
up in an optimal manner to match the type of
mix.
2.2 Paving Parameters
Layer Thickness - The larger the layer thickness, the larger the
screed planing angle.
Pave Width - The floating behaviour of the screed changes
in accordance with the pave width.
Paver Stop - The longer the paver stop, the greater the
irregularity to be expected in a longitudinal
direction.
Ambient Conditions - Ambient conditions, such as temperature,
can influence the mix and change the floating
behaviour of the screed.
2.3Relationship Between Tamper Speed and Pave Speed
While paving, when screed tow point rams are not changed in position, an equilibrium of forces comprising pave speed, screed weight and tamper speed is established. If any one of these parameters changes, this immediat ely affects the screed‘s floating behaviour. Tamper speed and pave speed are very strongly dependent on one another. Any change in pave speed without changing the tamper speed and position of the screed tow point rams will affect pre-compaction of the mix. If the pave speed is increased without simultaneously increasing the tamper speed, the load bearing capacity of the mix will be reduced and the screed lay a thinner layer at a steeper planing angle.
Paving with Automated Grade and Slope Control
If Automated Grade and Slope Control is used for paving, the desired elevation of the screed can be maintained by increasing the planning angle, but pre-compaction will not remain constant.
After Compaction by Rolling
When the roller passes over the mix, the amount of extra compaction will differ on account of varying pre-compaction and result in irregularities in the surface.
2.4Functions of the Hydraulic Rams for Raising / Lowering the Screed
Screed Float
Normally, mix is paved with the screed in Screed Float mode. In other words, the piston-side and rod-side valves operating the hydraulic rams are open for free up and down movement.
Screed Assist
If the bearing capacity of the mix is poor, the screed will not reach the desired elevation even when set to a large planing angle. The Screed Assist function allows pressure to be applied separately to the right and left-hand hydraulic rams from below. This pressure counteracts the screed weight and allows it to float up in accordance
译文资料： 机器人 首先我介绍一下机器人产生的背景，机器人技术的发展，它应该说是一个科学技术发展共同的一个综合性的结果，同时，为社会经济发展产生了一个重大影响的一门科学技术，它的发展归功于在第二次世界大战中各国加强了经济的投入，就加强了本国的经济的发展。另一方面它也是生产力发展的需求的必然结果，也是人类自身发展的必然结果，那么随着人类的发展，人们在不断探讨自然过程中，在认识和改造自然过程中，需要能够解放人的一种奴隶。那么这种奴隶就是代替人们去能够从事复杂和繁重的体力劳动，实现人们对不可达世界的认识和改造，这也是人们在科技发展过程中的一个客观需要。 机器人有三个发展阶段，那么也就是说，我们习惯于把机器人分成三类，一种是第一代机器人，那么也叫示教再现型机器人，它是通过一个计算机，来控制一个多自由度的一个机械，通过示教存储程序和信息，工作时把信息读取出来，然后发出指令，这样的话机器人可以重复的根据人当时示教的结果，再现出这种动作，比方说汽车的点焊机器人，它只要把这个点焊的过程示教完以后，它总是重复这样一种工作，它对于外界的环境没有感知，这个力操作力的大小，这个工件存在不存在，焊的好与坏，它并不知道，那么实际上这种从第一代机器人，也就存在它这种缺陷，因此，在20世纪70年代后期，人们开始研究第二代机器人，叫带感觉的机器人，这种带感觉的机器人是类似人在某种功能的感觉，比如说力觉、触觉、滑觉、视觉、听觉和人进行相类比，有了各种各样的感觉，比方说在机器人抓一个物体的时候，它实际上力的大小能感觉出来，它能够通过视觉，能够去感受和识别它的形状、大小、颜色。抓一个鸡蛋，它能通过一个触觉，知道它的力的大小和滑动的情况。第三代机器人，也是我们机器人学中一个理想的所追求的最高级的阶段，叫智能机器人，那么只要告诉它做什么，不用告诉它怎么去做，它就能完成运动，感知思维和人机通讯的这种功能和机能，那么这个目前的发展还是相对的只是在局部有这种智能的概念和含义，但真正完整意义的这种智能机器人实际上并没有存在，而只是随着我们不断的科学技术的发展，智能的概念越来越丰富，它内涵越来越宽。 下面我简单介绍一下我国机器人发展的基本概况。由于我们国家存在很多其
指纹识别方法的综述 摘 要: 对在指纹的预处理和特征提取、指纹分类、指纹的匹配过程中的方向图、滤波器、神经网络等关 键性原理和技术做了详细的说明,并对在各个过程中用到的方法做了进一步的比较,讨论了各种方法的优越性。 0 引 言 自动指纹识别是上世纪六十年代兴起的,利用计算机取代人工来进行指纹识别的一种方法。近年 来,随着计算机技术的飞速发展,低价位指纹采集仪的出现以及高可靠算法的实现,更使得自动指纹识 别技术越来越多地进入到人们的生活和工作中,自动指纹识别系统的研究和开发正在成为国内外学术 界和商业界的热点。相对于其他生物特征鉴别技术例如语音识别及虹膜识别,指纹识别具有许多独到 的优点,更重要的是它具有很高的实用性和可行性,已经被认为是一种理想的身份认证技术,有着十分 广泛的应用前景,是将来生物特征识别技术的主流。 1 指纹取像 图 1 是一个自动指纹识别系统AFIS(Automated Fingerprint Identification System) 的简单流程。 → → → ↓ ↑ ———— 将一个人的指纹采集下来输入计算机进行处理是指纹自动识别的首要步骤。指纹图像的获取主要利用设备取像,方便实用,比较适合AFIS 。利用设备取像的主要方法又利用光学设备、晶体传感器和超声波来进行。光学取像设备是根据光的全反射原理来设计的。晶体传感器取像是根据谷线和脊线皮肤与传感器之间距离不同而产生的电容不同来设计的。超声波设备取像也是采用光波来取像,但由于超声波波长较短,抗干扰能力较强,所以成像的质量非常好。 2 图像的预处理与特征提取 无论采取哪种方法提取指纹,总会给指纹图像带来各种噪声。预处理的目的就是去除图像中的噪 音,把它变成一幅清晰的点线图,以便于提取正确的指纹特征。预处理是指纹自动识别过程的第一步, 它的好坏直接影响着指纹识别的效果。常用的预处理与特征提取( Image Preprocessing and Feature Ex 2 t raction) 方法的主要步骤包括方向图计算、图像滤波、二值化、细化、提取特征和后处理。当然这些步骤 可以根据系统和应用的具体情况再进行适当变化。文献[ 1 ]提出了基于脊线跟踪的方法能够指纹取像 图像预处理 特征提取 指纹识别 数据库管理
加工中心数控技术 出处：数控加工中心的分类以及各自特点 出版社:化学工业出版社; 第1版 (2009年3月16日) 作者：徐衡、段晓旭 加工中心是典型的集高技术于一体的机械加工设备，它的发展代表了一个国家设计制造的水平也大大提高了劳动生产率，降低了劳动成本，改善了工人的工作环境，降低了工人的劳动强度。本文经过对不同运动方案和各部件的设计方案的定性分析比较确定该教立式加工中心的进给传动方案为：采用固定床身，电主轴通过安装座安装在床身导轨的滑座上，床身导轨采用滚动导轨，可以实现Y 方向的进给运动。由X-Y双向精密数控工作台带动工件完成X，Y两个方向的进给运动;X，Y，Z三个方向的进给运动均滚珠丝杠，并由交流伺服电机驱动。导轨、滚珠丝杠有相应的润滑、防护等装置。 加工中心（英文缩写为CNC 全称为Computerized Numerical Control）：是带有刀库和自动换刀装置的一种高度自动化的多功能数控机床。在中国香港，台湾及广东一代也有很多人叫它电脑锣。 工件在加工中心上经一次装夹后，数字控制系统能控制机床按不同工序，自动选择和更换刀具，自动改变机床主轴转速、进给量和刀具相对工件的运动轨迹及其他辅助机能，依次完成工件几个面上多工序的加工。并且有多种换刀或选刀功能，从而使生产效率大大提高。 加工中心数控机床是一种装有计算机数字控制系统的机床，数控系统能够处理加工程序，控制机床完成各种动作。与普通机床相比，数控机床能够完成平面曲线和空间曲面的加工，加工精度和生产效率都比较高，因而应用日益广泛。 数控机床的组成 一般来说，数控机床由机械部分、数字控制计算机、伺服系统、PC控制部分、液压气压传动系统、冷却润滑和排泄装置组成。数控机床是由程序控制的，零件的编程工作是数控机床加工的重要组成部分。伺服系统是数控机床的驱动部分，计算机输出的控制命令是通过伺服系统产生坐标移动的。普通的立式加工中心有三个伺服电机，分别驱动纵向工作台、横向工作台、主轴箱沿X向、Y向、Z向运动。X、Y、Z是互相垂直的坐标轴，因而当机床三坐标联动时可以加工空
零售企业营销策略中英文对照外文翻译文献(文档含英文原文和中文翻译)
译文： 零售企业的营销策略 Philip Kotlor 今天的零售商为了招徕和挽留顾客，急欲寻找新的营销策略。过去，他们挽留顾客的方法是销售特别的或独特的花色品种，提供比竞争对手更多更好的服务提供商店信用卡是顾客能赊购商品。可是，现在这一切都已变得面目全非了。现在，诸如卡尔文·克连，依佐和李维等全国性品牌，不仅在大多数百货公司及其专营店可以看到，并且也可以在大型综合商场和折扣商店可以买到。全国性品牌的生产商为全力扩大销售量，它们将贴有品牌的商品到处销售。结果是零售商店的面貌越来越相似。 在服务项目上的分工差异在逐渐缩小。许多百货公司削减了服务项目，而许多折扣商店却增加了服务项目。顾客变成了精明的采购员，对价格更加敏感。他们看不出有什么道理要为相同的品牌付出更多的钱，特别是当服务的差别不大或微不足道时。由于银行信用卡越来越被所有的商家接受，他们觉得不必从每个商店赊购商品。 百货商店面对着日益增加的价格的折扣店和专业商店的竞争，准备东山再起。历史上居于市中心的许多商店在郊区购物中心开设分店，那里有宽敞的停车场，购买者来自人口增长较快并且有较高收入的地区。其他一些则对其商店形式进行改变，有些则试用邮购盒电话订货的方法。超级市场面对的是超级商店的竞争，它们开始扩大店面，经营大量的品种繁多的商品和提高设备等级，超级市场还增加了它们的促销预算，大量转向私人品牌，从而增加盈利。 现在，我们讨论零售商在目标市场、产品品种和采办、服务以及商店气氛、定价、促销和销售地点等方面的营销策略。 一、目标市场 零售商最重要的决策时确定目标市场。当确定目标市场并且勾勒出轮廓时，零售商才能对产品分配、商店装饰、广告词和广告媒体、价格水平等作出一致的决定。如沃尔玛的目标市场相当明确：
外文资料译文及原文 译文(一) 消费者体验旅游和品牌的结合 米契尔罗伯特 定义消费者体验旅游 制造工厂参观，公司博物馆和公司访客中心表现为被不同名字已知的观光事业片段：制造业观光事业，工业的吸引、工业的观光事业和工业的遗产观光事业。在每一个描述性的长期的共同目标是在消费者学习品牌，其运作，生产过程，历史和历史意义的时候建立一个消费者和品牌之间的纽带。有人建议在这里CET代表一个统一的主题的旅游。这个术语捕捉消费者的消费能力发现更多关于他们所消费的品牌，而制造商可以在与该工厂的客人接触的30-120分钟时间里建立与这些消费者更密切的关系。 参与的品牌 品牌经理寻求解决在三个层次消费者的需求： （1）功能（对消费者提供解决问题的办法）; （2）符号（提供心理欲望满意度）; （3）经历（提供感官快乐，品种，认知，刺激） CET可以通过视觉地介绍品牌，运作，生产工艺，历史和历史意义加强消费者和品牌之间的纽带。这种纽带可以被看作是个人品牌参与和品牌忠诚度的提高。认知参与反映了消费者对产品的兴趣（或学习更多）。CET可以通过刺激消费者对于品牌和生产过程的想象提高消费者的认知水平。此外，积极口碑沟通刺激满足旅客可能会比其他形式的促销更可信。 缺乏现有的直接研究关注 迄今为止，CET已经在行销文学中受到一点注意。米契尔和米契尔（2001年）对此内容这种的旅游网站进行了评估。此外，这些相同的作者已经评估食物和饮料工业中的现象（米契尔和米契尔，2000年），非营利部门（米契尔和米契尔，2001年b），和整体经济（米契尔等， 2001）。米契尔和米契尔（2002）为学者提出了格式，用来评估在当地的服务领域这些设施的地方利益。该主题通常包括对整合营销的简要讨论，但已收到直接研究的关注很有限。
人工智能的形成及其发展现状分析 冯海东 （长江大学管理学院荆州434023） 摘要：人工智能的历史并不久远，故将从人工智能的出现、形成、发展现 状及前景几个方面对其进行分析，总结其发展过程中所出现的问题，以及发展现状中的不足之处，分析其今后的发展方向。 关键词：人工智能，发展过程，现状分析，前景。 一．引言 人工智能最早是在1936年被英国的科学家图灵提出，并不为多数人所认知。 当时，他编写了一个下象棋的程序，这就是最早期的人工智能的应用。也有著名的“图灵测试”，这也是最初判断是否是人工智能的方案,因此，图灵被尊称为“人工智能之父”。人工智能从产生到发展经历了一个起伏跌宕的过程，直到目前为止，人工智能的应用技术也不是很成熟，而且存在相当的缺陷。 通过搜集的资料，将详细的介绍人工智能这个领域的具体情况，剖析其面临的挑战和未来的前景。 二．人工智能的发展历程 1. 1956年前的孕育期 (1) 从公元前伟大的哲学家亚里斯多德(Aristotle)到16世纪英国哲学家培根(F. Bacon)，他们提出的形式逻辑的三段论、归纳法以及“知识就是力量”的警句，都对人类思维过程的研究产生了重要影响。 （2）17世纪德国数学家莱布尼兹(G..Leibniz)提出了万能符号和推理计算思想，为数理逻辑的产生和发展奠定了基础，播下了现代机器思维设计思想的种子。而19世纪的英国逻辑学家布尔（G. Boole）创立的布尔代数，实现了用符号语言描述人类思维活动的基本推理法则。 （3） 20世纪30年代迅速发展的数学逻辑和关于计算的新思想，使人们在计算机出现之前，就建立了计算与智能关系的概念。被誉为人工智能之父的英国天才的数学家图灵（A. Tur-ing）在1936年提出了一种理想计算机的数学模型，即图灵机之后,1946年就由美国数学家莫克利（J. Mauchly）和埃柯特（J. Echert）研制出了世界上第一台数字计算机，它为人工智能的研究奠定了不可缺少的物质基础。1950年图灵又发表了“计算机与智能”的论文，提出了著名的“图灵测试”，形象地指出什么是人工智能以及机器具有智能的标准，对人工智能的发展产生了极其深远的影响。 （4） 1934年美国神经生理学家麦克洛奇(W. McCulloch) 和匹兹(W. Pitts )建立了第一个神经网络模型，为以后的人工神经网络研究奠定了基础。 2. 1956年至1969年的诞生发育期 (1)1956年夏季，麻省理工学院（MIT)的麦卡锡（J．McCarthy）、明斯基（M. Minshy）、塞尔夫里奇（O. Selfridge)与索罗门夫(R. Solomonff)、 IBM的洛
虹膜识别外文翻译文献 虹膜识别外文翻译文献 (文档含中英文对照即英文原文和中文翻译) 外文： The first chapter 1.1 The research background of iris recognition Biometrics is a technology for personal identification using physiological characteristics and behavior characteristics inherent in the human body. Can be used for the biological characteristics of biological recognition, fingerprint, hand type face, iris, retina, pulse, ear etc.. Behavior has the following characteristics: signature, voice, gait, etc.. Based on these characteristics, it has been the development of hand shape recognition, fingerprint recognition, facial recognition, iris recognition, signature recognition and other biometric technology, many techniques have been formed and mature to application of. Biological recognition technology in a , has a long history, the ancient Egyptians through identification of each part of the body size measure to carry out identity may be the earliest human based on the earliest history of biometrics. But the modern biological recognition technology began in twentieth Century 70 time metaphase, as biometric devices early is relatively expensive, so only a higher security level atomic test, production base.due to declining cost of microprocessor and various electronic components, precision gradually improve, control device of a biological recognition technology has been gradually applied to commerce authorized, such as access control, attendance management, management system, safety certification field etc.. All biometric technology, iris recognition is currently used as a convenient and accurate.
Lathes Lathes are machine tools designed primarily to do turning, facing and boring, Very little turning is done on other types of machine tools, and none can do it with equal facility. Because lathes also can do drilling and reaming, their versatility permits several operations to be done with a single setup of the work piece. Consequently, more lathes of various types are used in manufacturing than any other machine tool. The essential components of a lathe are the bed, headstock assembly, tailstock assembly, and the leads crew and feed rod. The bed is the backbone of a lathe. It usually is made of well normalized or aged gray or nodular cast iron and provides s heavy, rigid frame on which all the other basic components are mounted. Two sets of parallel, longitudinal ways, inner and outer, are contained on the bed, usually on the upper side. Some makers use an inverted V-shape for all four ways, whereas others utilize one inverted V and one flat way in one or both sets, They are precision-machined to assure accuracy of alignment. On most modern lathes the way are surface-hardened to resist wear and abrasion, but precaution should be taken in operating a lathe to assure that the ways are not damaged. Any inaccuracy in them usually means that the accuracy of the entire lathe is destroyed. The headstock is mounted in a foxed position on the inner ways, usually at the left end of the bed. It provides a powered means of rotating the word at various speeds . Essentially, it consists of a hollow spindle, mounted in accurate bearings, and a set of transmission gears-similar to a truck transmission—through which the spindle can be rotated at a number of speeds. Most lathes provide from 8 to 18 speeds, usually in a geometric ratio, and on modern lathes all the speeds can be obtained merely by moving from two to four levers. An increasing trend is to provide a continuously variable speed range through electrical or mechanical drives. Because the accuracy of a lathe is greatly dependent on the spindle, it is of heavy construction and mounted in heavy bearings, usually preloaded tapered roller or ball types. The spindle has a hole extending through its length, through which long bar stock can be fed. The size of maximum size of bar stock that can be machined when the material must be fed through spindle. The tailsticd assembly consists, essentially, of three parts. A lower casting fits on the inner ways of the bed and can slide longitudinally thereon, with a means for clamping the entire assembly in any desired location, An upper casting fits on the lower one and can be moved transversely upon it, on some type of keyed ways, to permit aligning the assembly is the tailstock quill. This is a hollow steel cylinder, usually about 51 to 76mm(2to 3 inches) in diameter, that can be moved several inches longitudinally in and out of the upper casting by means of a hand wheel and screw. The size of a lathe is designated by two dimensions. The first is known as the swing. This is the maximum diameter of work that can be rotated on a lathe. It is approximately twice the distance between the line connecting the lathe centers and the nearest point on the ways, The second size dimension is the maximum distance between centers. The swing thus indicates the maximum work piece diameter that can be turned in the lathe, while the distance between centers indicates the maximum length of work piece that can be mounted between centers. Engine lathes are the type most frequently used in manufacturing. They are heavy-duty machine tools with all the components described previously and have power drive for all tool movements except on the compound rest. They commonly range in size from 305 to 610 mm(12 to 24 inches)swing and from 610 to 1219 mm(24 to 48 inches) center distances, but swings up to 1270 mm(50 inches) and center distances up
顾客满意策略与顾客满意营销 原文来源：《Marketing Customer Satisfaction 》自20世纪八十年代末以来, 顾客满意战略已日益成为各国企业占有更多的顾客份额, 获得竞争优势的整体经营手段。 一、顾客满意策略是现代企业获得顾客“货币选票”的法宝随着时代的变迁, 社会物质财富的极大充裕, 顾客中的主体———消费者的需求也先后跨越了物质缺乏的时代、追求数量的时代、追求品质的时代, 到了20世纪八十年代末进入了情感消费时代。在我国, 随着经济的高速发展,我们也已迅速跨越了物质缺乏时代、追求数量的时代乃至追求品质的时代, 到今天也逐步迈进情感消费时代。在情感消费时代, 各企业的同类产品早已达到同时、同质、同能、同价, 消费者追求的已不再是质量、功能和价格, 而是舒适、便利、安全、安心、速度、跃动、环保、清洁、愉快、有趣等,消费者日益关注的是产品能否为自己的生活带来活力、充实、舒适、美感和精神文化品位, 以及超越消费者期望值的售前、售中、售后服务和咨询。也就是说, 今天人们所追求的是具有“心的满足感和充实感”的商品, 是高附加值的商品和服务,追求价值观和意识多元化、个性化和无形的满足感的时代已经来临。 与消费者价值追求变化相适应的企业间的竞争, 也由产品竞争、价格竞争、技术竞争、广告竞争、品牌竞争发展到现今的形象竞争、信誉竞争、文化竞争和服务竞争, 即顾客满意竞争。这种竞争是企业在广角度、宽领域的时空范围内展开的高层次、体现综合实力的竞争。它包括组织创新力、技术创新力、管理创新力、产业预见力、产品研发力、员工向心力、服务顾客力、顾客亲和力、同行认同力、社会贡献力、公关传播沟通力、企业文化推动力、环境适应力等等。这些综合形象力和如何合成综合持久的竞争力, 这就是CSft略所要解决的问题。CS寸代,企业不再以“自己为中心”,而是以“顾客为中心”；“顾客为尊”、“顾客满意”不再是流于形式的口号, 而是以实实在在的行动为基础的企业经营的一门新哲学。企业不再以质量达标, 自己满意为经营理念, 而是以顾客满意, 赢得顾客高忠诚度为经营理念。企业经营策略的焦点不再以争取或保持市场占有率为主, 而是以争取顾客满意为经营理念。因此, 营销策略的重心不再放在竞争对手身上而是放在顾客身上, 放在顾客现实的、潜在的需求上。当企业提供的产品和服务达到了顾客事先的期望值, 顾客就基本满意；如果远远超越顾客的期望值, 且远远高于其他同行, 顾客才真正满意；如果企业能不断地或长久地令顾客满意, 顾客就会忠诚。忠诚的顾客不仅会经常性地重复购买, 还会购买企业其它相关的产品或服务；忠诚的顾客不仅会积极向别人推荐他所买的产品, 而且对企业竞争者的促销活动具有免疫能力一个不满意的顾客会将不满意告诉16-20个人, 而每一个被告知者会再传播给12-15个人。这样, 一个不满意者会影响到二、三百人。在互联网普及的今天, 其影响则更大。据美国汽车业的调查, 一个满意者会引发8笔潜在的生意, 其中至少有一笔会成交。而另一项调查表明, 企业每增加5%的忠诚顾客, 利润就会增长25%-95%。一个企业的80%的利润来自20%的忠诚顾客；而获取一个新顾客的成本是维持一个老顾客成本的6倍。所以,美国著名学者唐?佩 珀斯指出: 决定一个企业成功与否的关键不是市场份额, 而是在于顾客份额。 于是, 企业纷纷通过广泛细致的市场调研、与消费者直接接触、顾客信息反馈等方式来了解顾客在各方面的现实需求和潜在需求。依靠对企业满意忠诚的销售、服务人员, 定期、定量地对顾客满意度进行综合测定, 以便准确地把握企业经营中与“顾客满意” 目标的差距及其重点领域, 从而进一步改善企业的经营活动。依靠高亲和力的企业文化、高效率的人文管理和全员共同努力, 不断地向顾客提供高附加值的产品, 高水准的亲情般的服
旅游品牌定位外文翻译文献(文档含英文原文和中文翻译)
原文： Destination brand positions of a competitive set of near-home destinations Abstract: Although the branding literature commenced during the 1940s, the first publications related to destination branding did not emerge until half a century later. A review of 74 destination branding publications by 102 authors from the first 10 years of destination branding literature (1998–2007) found at least nine potential research gaps warranting attention by researchers. In particular, there has been a lack of research examining the extent to which brand positioning campaigns have been successful in enhancing brand equity in the manner intended in the brand identity. The purpose of this paper is to report the results of an investigation of brand equity tracking for a competitive set of destinations in Queensland, Australia between 2003 and 2007. A hierarchy of consumer-based brand equity (CBBE) provided an effective means to monitor destination brand positions over time. A key implication of the results was the finding that there was no change in brand positions for any of the five destinations over the four year period. This leads to the proposition that destination position change within a competitive set will only
人工智能 【摘要】：人工智能是一门极富挑战性的科学，但也是一门边沿学科。它属于自然科学和社会科学的交叉。涉及的学科主要有哲学、认知科学、数学、神经生理学、心理学、计算机科学、信息论、控制论、不定性论、仿生学等。人工智能(Artificial Intelligence)，英文缩写为AI。它是研究、开发用于模拟、延伸和扩展人的智能的理论、方法、技术及应用系统的一门新的技术科学。人工智能是计算机科学的一个分支，它企图了解智能的实质，并生产出一种新的能以人类智能相似的方式做出反应的智能机器，该领域的研究包括机器人、语言识别、图像识别、自然语言处理和专家系统等1。 【关键词】：人工智能；应用领域；发展方向；人工检索。 1．人工智能描述 人工智能(Artificial Intelligence) ，英文缩写为AI。它是研究、开发用于模拟、延伸和扩展人的智能的理论、方法、技术及应用系统的一门新的技术科学2。人工智能是计 算机科学的一个分支，它企图了解智 能的实质，并生产出一种新的能以人 类智能相似的方式作出反应的智能 机器，该领域的研究包括机器人、语 言识别、图像识别、自然语言处理和 专家系统等。“人工智能”一词最初 是在1956 年Dartmouth学会上提出 的。从那以后,研究者们发展了众多 理论和原理,人工智能的概念也随之扩展。人工智能是一门极富挑战性的科学，从事这项工作的人必须懂得计算机知识，心理学和哲学。人工智能是包括十分广泛的科学，它由不同的领域组成，如机器学习，计算机视觉等等，总的说来，人工智能研究的一个主要目标是使机器能够胜任一些通常需要人类智能才能完成的复杂工作。但不同的时代、不同的人对这种“复杂工作”的理解是不同的。例如繁重的科学和工程计算本来是要人脑来承担的，现在计算机不但能完成这种计算, 而且能够比人脑做得更快、更准确，因之当代人已不再把这种计算看作是“需要人类智能才能完成的复 1.蔡自兴，徐光祐.人工智能及其应用.北京：清华大学出版社，2010 2元慧·议当人工智能的应用领域与发展状态〖Ｊ〗．2008
英文文献 Numerical control laser processing technology and application Pick to: as the main symbol of science and Technology development in the 20th century and the modern information society one of the pillars of optoelectronic Technology, Laser Technology, Laser Technology) and the development of Laser industry attaches great importance to by the advanced countries in the world. Numerical control and integrated the Laser and the optical system of the computer numerical control technology, advanced and high precision and automation of the workpiece positioning, the combination of formation, development and production of machining center has become a Laser machining, Laser Processing) is an important trend of development. Key words: CNC; Laser machining, Laser Processing); Level; application Before: laser is regarded as one of the most important scientific discoveries of the twentieth century, as soon as it was caused the great attention of materials scientists. In November 1971, gm pioneered the use of a 250 w CO2 laser to improve wear resistance materials using laser radiation test and research, and in 1974 successfully completed automobile redirector shell
文献出处: Dalman, M. Deniz, and Junhong Min. "Marketing Strategy for Unusual Brand Differentiation: Trivial Attribute Effect." International Journal of Marketing Studies 6.5 (2014): 63-72. 原文 Marketing Strategy for Unusual Brand Differentiation: Trivial Attribute Effect Dalman, M. Deniz & Junhong Min Abstract This research investigates that brand differentiation creating superior values can be achieved not only by adding meaningful attributes but also meaningless attributes, which is called "trivial attribute effect." Two studies provided empirical evidences as following; first, trivial attribute effect creates a strong brand differentiation even after subjects realize that trivial attribute has no value. Second, trivial attribute effect is more pronounced in hedonic service category compared to the utilitarian category. Last, the amount of willingness to pay is higher when trivial attribute is presented and evaluated in joint evaluation mode than separate evaluation mode. Finally, we conclude with discussion and provide suggestions for further research. Keywords: brand differentiation, evaluation mode, service industry, trivial attribute Introduction Problem Definition Perhaps the most important factor for new product success is to create the meaningful brand differentiation that provides customers with superior values beyond what the competitors can offer in the same industry (Porter, 1985). Not surprisingly, more than 50 percent of annual sales in consumer product industries including automobiles, biotechnology, computer software, and pharmaceuticals are attributed to such meaningful brand differentiation by including new or noble attributes (Schilling &Hill, 1998). However, the brand differentiation that increases consumer preference is not only by introducing meaningful attributes but also meaningless attributes. For
中英文对照外文翻译 (文档含英文原文和中文翻译) Tourism and the Environment: A Symbiotic Relationship Nowadays, with the improvement of people's living standards and the pursuit of higher spiritual life, tourism is developing rapidly, and it has an increasing proportion in the national economy. Tourism is getting more and more people's attention, followed by the impact of tourism on the ecological environment. The vigorous development of the tourism industry has multiple effects on the environment. They are both positive and negative. In order to adapt the development of tourism to the capacity of tourism resources, and promote the coordinated development of environment protection and tourism, and this paper will state the impact of tourism on the environment from three aspects: 1 The negative impact of tourism on the environment; 2 The positive impact of tourism on the environment; 3 The countermeasure to against the negative impact of tourism on the environment. Tourism development can put pressure on natural resources when it increases consumption in areas where resources are already scarce. The negative impact of tourism on the environment