基于模拟退火的机器人路径规划算法

本文利用模拟退火算法对该模型进行优化求解,为移动机器人寻找到一条最优路径。通过实验得到模拟退火算法有效提高了收敛速度,快速完成了移动机器人路径规划的任务。     

模拟退火混合遗传算法及其实现

传统的基本遗传算法在全局搜索和收敛速度上存在不足,通过把基本遗传算法和模拟退火算法相结合,提出的模拟退火混合遗传算法能够大大提高收敛速度,并采用一个多峰值函数验证了模拟退火混合算法的性能．     

基于模型分块交叉移动的学习型模拟退火算法地震反演

针对地震非线性反演问题,提出一种基于模型分块交叉移动的学习型模拟退火的全局优化地震反演方法.其步骤为:首先,在模拟退火算法及粒子群算法基础上,在算法模型扰动项里面加入1个向目标优化的方向移动的学习项;其次,针对地震反演模型数量多及地震记录为褶积形式的特点,采用模型分块交叉移动的方法来实施模拟退火反演,给出模型分块交叉移动的学习型模拟退火算法流程.研究结果表明:该方法具有收敛速度快、精度高、实现简单、高效的特点,可以用于其他多维多极值的目标函数反演.     

图像增强技术中的智能算法

提出了一种基于粒子群与模拟退火算法相结合的进化算法.该算法利用模拟退火算法全局收敛性好和粒子群算法收敛速度快等优点，通过交换这两种算法的信息得到最优解.将这种新算法应用于灰度图像的自适应增强，实例计算表明该算法稳定性好，在收敛速度和求解精度方面都优于遗传算法等一些其它进化算法.     

一种基于逆模拟退火和高斯混合模型的半监督聚类算法

基于节点标记的半监督高斯混合模型(Semi-supervised Gaussian Mixture Model,SGMM)可利用少量标记样本提高模型参数估计的准确率,但参数估计算法(SGMM Expectation Maximization,SGMM-EM)的准确率和收敛速度受高斯分布之间的重叠度和混和系数差异度影响.为提高SGMM模型参数估计的准确率和收敛速度,将逆模拟退火框架与SGMM模型的EM算法相结合,提出一种基于逆模拟退火框架的半监督高斯混合模型聚类算法(Anti-annealing SGMM-EM,ASGMM-EM).该算法逆温度参数从一个较小且大于0的值逐渐增加到大于1的上界,再逐渐降回1.在每个逆温度参数下执行半监督聚类算法SGMM-EM并迭代至收敛.人工数据和真实数据上实验表明提出的算法ASGMM-EM优于仅用半监督技术或逆模拟退火技术的基于高斯混合模型的EM算法.     

基于HFC-ADM模型对SA的改进及应用

通过分析模拟退火算法（SA）以及利用分等级公平竞争（HFC）模型对SA改进的固有缺陷,提出新的基于自适应输入阀值的HFC模型（HFC-ADM）的模拟退火算法及其算法流程,同时进行详细的数学描述。最后以求证旅行商问题（TSP）为例,通过统计数据验证了改进后的算法较采用同样局部优化的标准退火算法和分等级公平竞争的模拟退火算法具有更好的收敛速度和优化解。     

一类解决作业车间调度问题的遗传退火算法

将遗传算法与模拟退火相结合,提出了一种新调度算法,算法分成两步,首先利用遗传算法快速搜索一组较好解,然后利用模拟退火进行群体寻优,这样,既能克服遗传算法过早收敛的弱点,又能加快模拟退火的收敛速度,实验表明,该算法具有较高的求解质量和效率。     

基于遗传模拟退火算法的QoS组播路由问题求解

提出了一种基于遗传模拟退火算法的带宽时延约束费用最小组播路由选择方法,该方法针对遗传算法的局限性,采用基于备选路径集的整数序列编码机制,对适应度函数进行了调整,改进了交叉和变异操作,并结合了模拟退火算法.实验表明,该算法能够有效地提高收敛速度,避免早熟收敛,能够满足多媒体网络对相应QoS的需求.     

模拟退火-回火算法在原子吸收分光光度多元测定中的应用

提出了反向传播人工神经网络(BP-ANN)参数学习的模拟退火-回火算法。在保持模拟退火算法能收敛于全局最优的特点同时，利用模拟回火过程，加快了算法的收敛速度。建立了原子吸收光谱单波长下多元测定的BP冈络模型。利用干扰效应，用常规火焰原子吸收分光光度法在单波长下同时测定了污水中的痕量镉和砷，方法简便、安全，具有较高的准确度和精密度。     

遗传退火进化算法

提出了一种瓣的将模拟退火和遗传算法相结合的进化算法，避免了遗传算法中存在的早熟收敛的问题，增强了算法的全局收敛性，并且提高了算法的收敛速度。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that