Special structures for coherent FBG group and fiber MZI sensors are designed. For weak signals or strongly interferenced signals, winding method, flat layout method, special coated fiber method or spring separation method, solid separation method are proposed, and the recognition ability for object signals is improved. The physical features of the object signals are extracted from various aspects by the parameters analysis such as maximum amplitude, RMS, ringing count, pulse count, event count and duration, by the waveform transform analysis such as Fourier analysis, AR spectrum analysis and joint-time-frequency analysis, and by statistic analysis of the parameters analysis results or waveform transform analysis results. And the features of different object signals are extracted when the optical fiber sensing systems are applied for railway location, axel counter, fence destruction monitoring and pipe destruction monitoring. Auto-recognition of the railway location signals with coherent FBG sensing system is realized by a linear discrimination function based on Fisher criterion. And auto-recognition of the fence destruction signals with a MZI sensing system demodulated by a 3×3 coupler is realized by a LMBP neural network.
对相干FBG组及光纤MZI传感器的具体结构进行了设计，分别针对微弱振动信号及强干扰信号，采用缠绕法、平面法、特殊材料涂覆光纤及弹簧隔离法、整体隔离法等设计光纤传感器，提高了对目标信号的识别能力；通过提取信号最大幅度、有效电平、振铃计数、脉冲计数、事件计数、持续时间等参数，对信号进行傅立叶谱分析、AR谱分析、时频分析，并对不同参数及频谱分析结果再进行分布统计分析，实现了多角度的信号物理特征提取，应用于列车区间定位、列车计轴、围栏破坏性行为监测、管道破坏性行为监测等场合，实现了各种不同目标信号的特征提取；采用基于Fisher准则的线性判别函数，实现了基于相干FBG组传感系统的列车区间空闲或占用的自动识别；采用LMBP人工神经网络，实现了基于3×3耦合器解调的MZI传感系统的围栏破坏性行为的自动识别。
Generalizes three differences between science and engineering, they are:science knowledge correlates with know-why, engineering knowledge correlates with knowhow; the object of science is acquiring knowledge, and is weak correspodingly; the object of engineering is materialization of concept and is strong correspondingly; on the view of value, science is...
文章从认识论上概括出二者之间的三个区别，即科学知识与know-why相关，工程知识与know-how相关；科学的目的在于获得知识，科学的目的性相对较弱；而工程的目的在于观念的物化，工程的目的性相对较强；科学是价值中立的，而工程是与价值相关的。
This research considers the visual characteristics of the object of low luminance and weak contrast based on the mesopic vision.
作为大尺度景观照明对象，其整体环境多具有低亮度、弱对比的特点，亮度水平涵盖在中间视觉范围内。
In our daily practice, if we do not use weak reference, only use strong reference, it happens that we use a largae object and set it to null and let GC collect it, and we need the large object soon later, but there is no way find the original object back, we have to instanciate a new large object. That way we are wasting computer resources to create the old instance, but if we do not set the object to null, it occupies lot of memory.
在实际当中，如果不用弱引用，只用强引用，则用过了该大对象，然后将强引用置null，让GC可以回收它，但是没过多久我们又需要这个大对象了，但是已经没有办法找回原来的对象，只好重新创建实例，这样就浪费了创建实例所需的计算资源；而如果不置null，就会占用很多内存资源。
This steady and undissipated attention to one object, is a sure mark of a superior genius; as hurry, bustle, and agitation, are the never-failing symptoms of a weak and frivolous mind.
的确，全神贯注专心致志是天才的象征；相反，仓促、匆忙和骄躁，就是一个轻浮愚蠢的大脑的典型表现。
Since the long-range capture, GGVF force field can pull the contours lying in or out the object boundary, the model can avoid the weak edges leakage problem which is an annoyance in traditional Level Set methods.
同时，利用水平集方法求解模型曲线的演化，使得基于梯度混合的LBF几何活动轮廓模型能够处理目标的拓扑变化。
In order to meet the demands of the fourth generation integrated bridge system, an electronic chart display and information system with a weak coupling software architecture is established, including chart management, chart display, overlay of chart and radar image, moving object management, tide graph and meteorology graph.
为满足第4代综合船桥对电子海图系统的各种需求，设计了低耦合度的海图软件体系结构，完成了包括海图图库管理、海图显示、海图与雷达图像叠加、动态目标管理、潮汐图与气象图显示等多个软件模块的电子海图应用系统开发。
It is, therefore, that the Pesant Association was disappeared in the rural public stage silently. The nature of transit of the Peasant Association is the real reason of disappearance in the country. The weak of Peasant Association is the object reason of disappearance. The main reason is that the peasants are not interested in political issue, so the Peasant Association had not been existed for a long time.
农民协会的过渡性质是其悄然隐退的根本原因；农民协会自身不足是其悄然隐退的客观原因；农民长期以来不问政治的思想倾向是农民协会悄然隐退的主观原因；而中农化趋势的加强和各种互助组的出现，是导致农民协会悄然隐退的直接原因。
This is a specific form of weak consistency; the storage system guarantees that if no new updates are made to the object, eventually all accesses will return the last updated value.
这是弱一致性的一个特例；存储系统确认一个对象是否有新的更新，最终所有的访问将返回上一次更新后的值。
Academic circles to science and technology policy research has been on for a long time, but the main body and the research object most western developed countries for science and technology, the development trend of national science and technology policy research is weak.
学术界对科技政策的研究由来已久，但其主体和研究对象大部分为西方科技发达国家，对后起发展中国家的科技政策研究比较薄弱。
If a pointer pointing to an object not in the graph, then the object is not a reachable object, and then garbage collector sets the slot to null in the short weak reference table.
如果一个指针指向一个不在图中的对象，那么此对象就是一个不可到达的对象，垃圾收集器就将短弱引用表相应的槽置空。
By Fourier optics method, fiber-optic confocal sensor using a gradient-index (GRIN) lens has been analyzed theoretically as an imaging system upon the weak object approximation.
在弱物体近似下，运用傅立叶光学，从成像系统角度对自聚焦共焦传感技术进行了理论研究。
New concepts of efficient and weak-efficient solutions for multi-objective fuzzy programming are first defined. The relation ship between the solution and the concepts of this paper is shown. Many models to consider the effect of the factor vector of each object are given.
首次提出了多目标模糊规划的有效解及弱有效解概念，证明了本文的解与多目标模糊规划的有效解及弱有效解的关系。
A weak reference is a holder for a reference to an object, called the referent.
弱引用是对一个对象（称为referent）的引用的持有者。
The optical spectrum of this object exhibits rather narrow Hbeta FWHM(Hbeta ~1500 km s–1, weak forbidden lines, and is therefore classified as a narrow-line type I quasar.
该类星体的光谱呈现出很窄的Hbeta线FWHM(Hbeta ~1500 km s–1和弱的禁线，因此被划分为窄线I类类星体。
In this model, an item of series about weak disparity not only demonstrates the weak nonlinear connection between depth information in object space and two-dimensional information in image space but also partially corrects the depth-dependent of lateral scales in object space.
建立了新的显微视觉模型，模型中包含弱视差的级数项，反映出物空间深度信息与图像空间二维信息间存在弱的非线性关系，同时也部分矫正了物空间横向尺度的深度依赖性。
Automatic Locating and Segmenting Algorithm for Object Region of Ultrasound Images with Weak Contour
弱边缘医学超声图像目标区域的自动定位与分割
Moral integration has the features of strong permeability and weak restriction, promotion and openness, progressness and ascent and clearness and singleness of the object.
从道德整合的特征来看，它呈现出强渗透性与弱约束性、提升性与开放性、前进性与上升性以及目标的明确性与唯一性。
Theme? Is the subject and object simple enough? Have you put off the no use things or the things make the subject weak?
主题？主题和陪体足够简化？是否把没必要的或对主题有冲淡作用的景物去掉了？
GC is a thread of very low priority, so a weak reference object may not be collected immediately.
因为垃圾回收器是一个优先级很低的线程，所以弱引用对象也不一定会马上就会被回收。