浅谈建设项目用地勘测定界工作

结合生产实践对建设项目用地勘测定界工作的含义、工作程序等进行了初步的探讨和总结,并归纳了勘测定界中常见问题及解决对策,以期指导工程实践。     

香型融合是白酒的发展趋势

总结分析中国白酒香型的由来与发展,三大基本香型与其余香型的相互关系;针对消费者对白酒口味要求的变化,预示着香型融合是白酒发展的必然趋势。     

风电联轴器的结构类型及技术特点

风电联轴器用于连接风力电机的风电叶片和齿轮箱,除传递扭矩外,主要实现各向补偿。文中重点介绍目前广泛应用的几种风电联轴器的技术特点和性能参数。     

Fault detection in multi-sensor networks based on multivariate time-series models and orthogonal transformations

We introduce the usage of multivariate orthogonal space transformations and vectorized time-series models in combination with data-driven system identification models to achieve an enhanced performance of residual-based fault detection in condition monitoring systems equipped with multi-sensor networks. Neither time-consuming annotated samples nor fault patterns/models need to be available, as our approach is solely based on on-line recorded data streams. The system identification step acts as a fusion operation by searching for relations and dependencies between sensor channels measuring the state of system variables. We therefore apply three different vectorized time-series variants: (i) non-linear finite impulse response models (NFIR) relying only on the lagged input variables, (ii) non-linear output error models (NOE), also including the lags of the own predictions and (iii) non-linear Box–Jenkins models (NBJ) which include the lags of the predictions errors as well. The use of multivariate orthogonal space transformations allows to produce more compact and accurate models due to an integrated dimensionality (noise) reduction step. Fault detection is conducted based on finding anomalies (untypical occurrences) in the temporal residual signal in incremental manner. Our experimental results achieved on four real-world condition monitoring scenarios employing multi-sensor network systems demonstrate that the Receiver Operating Characteristic (ROC) curves are improved over those ones achieved with native static models (w/o lags, w/o transformations) by about 20–30%.     

Synthetic generation of standard sky types series using Markov Transition Matrices

The paper describes a methodology for creating synthetic time series of the fifteen standard sky types considered by the Commission International d'Eclairage (CIE). Since the measurements of sky luminance and accordingly CIE sky types are limited to a small number of locations, it is important to develop models to generate the time series of these parameters. The method is applied to two different locations [Pamplona (Spain) and Arcavacata di Rende (Italy)] where experimental luminance data are available. Firstly, the standard sky types corresponding to the observed luminance values are determined every 10 min and from these, Markov's Transition Matrices (MTM) are obtained corresponding to the four seasons. Secondly, it is statistically verified that the process follows a Markov's chain of first order and that it is stationary. Thirdly, obtained MTMs are used as a basis for generating the synthetic series of types of sky. Finally, experimental and synthetic time series are compared for the two locations, exhibiting good fitting results. As a conclusion, it is verified that first order MTM method can be used to generate time series of occurrence of CIE standard sky types, for the two locations. To clarify the general applicability, it should be applied to different locations having different climates and in addition with longer data sets.     

Conceptualizing the challenge of reducing interpersonal violence.

Interpersonal violence (IV) has many forms including child maltreatment, domestic violence, sexual assault, gang activity, elder abuse, and others. These are well studied areas often conceptualized, discussed, and investigated separately, in large part to give the fine-grained attention each has shown to warrant as a social problem and area of research. This paper discusses IV more generally, draws on the notion of wicked problems, and applies characteristics of such problems to violence. The broader view as a complement to the more molecular focus on individual areas draws attention to slightly different challenges, including multiplicity of views in formulating the problem or even seeing violence as a “problem,” the need to act in the absence of sufficient data, and fragmentation in research, services, and training in IV. Better integration across areas of IV is warranted in part because different forms of victimization often go together, challenges among the individual areas often overlap, and interventions at societal and cultural levels might have direct and indirect impact on multiple forms of violence. The shared goal is to reduce the incidence and prevalence of violence. Much is to be gained by unifying current efforts with a focus on commonalities that the different types of violence share. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

An empirical analysis of the characteristics of residential location choice in the rapidly changing Korean housing market

This study examines the factors of residential location choice by considering the characteristics of the Korean housing market. From various factors of the residential location choice of a household, this study focuses on the effect of opportunities to engage in other activities, represented by accessibility, and the variety of housing tenure types—i.e., owner-occupied, Chonsei, and monthly rent—and the change of each type’s share of the market. The results of this empirical study indicate that households will most often choose to live in districts with more accessibility (a representative variable of demand-driven market), more permitted housing floor space (that of supply-driven one), higher rents, and lower housing prices in the Seoul Metropolitan Area (SMA). That is to say, the rapidly changing Korean housing market indicates a transition phase from a supply-driven to a demand-driven one. The significance of the variables and their effects were different for each housing tenure type. This means that the tenure type choice of a household is influenced by the level of income and assets. The results of this study are significant in understanding the characteristics of residential location choices of Korea and the countries in the transition as well.     

ANALYSIS OF RECENT PATENT LITERATURE ON DRYING AND DRYERS

ABSTRACT

A preliminary semi-quantitative analysis is made of the recent patent literature related to drying and dryers. United States patents granted in the period January 1998 to June 1999 were examined. For this preliminary study, only the abstracts were used to classify the patents by subject area and arrive at some general conclusions. An in-depth overview covering a larger database and full texts of the patents is required to confirm the results presented.     

全预制装配式变电站考察情况简述

浅析了全预制装配式变电站的制造方式,叙述了对宁波市预制式装配变电站建设情况的考察情况,并通过分析对比,讨论了全预制装配式变电站的优点,阐述了实施全装配式变电站的巨大优势和重要意义。     

区间数多属性决策中属性值规范化方法

属性值的规范化处理是模糊多属性决策中首要的第一步。现有的文献只是把属性的类型分为成本型和效益型两种类型进行规范化处理。在分析6种属性类型的基础上,指出了6种属性之间的关系,并提出了一种适应6种属性类型,可以处理精确数和区间数的一种极值化数据处理方法。进一步分析了极值化处理方法的性质,通过与其它方法比较,说明了该方法计算过程简单。最后将该方法运用于绿色设计中绿色材料的选择。