A hybrid (visual/natural) controlled language

We define the notion of controlled hybrid language that allows information share and interaction between a controlled natural language (specified by a context-free grammar) and a controlled visual language (specified by a Symbol-Relation grammar). We present the controlled hybrid language INAUT, used to represent nautical charts of the French Naval and Hydrographic Service (SHOM) and their companion texts (Instructions nautiques).     

基于Adams的列车碰撞三维动力学模型和仿真

为研究列车碰撞性能,用Adams创建由车体、车钩缓冲装置、端部吸能结构、防爬器、转向架和轮轨力等组成的单节车厢三维动力学模型,并创建6节车厢列车的三维动力学模型,模拟列车以15 m/s的速度与2节静止车厢碰撞的过程.通过分析各节车厢的速度、加速度和每个车钩缓冲装置的相对偏移量在碰撞过程中的变化情况,重现列车碰撞过程,进而分析影响列车垂向爬车和横向屈曲稳定性的因素.仿真结果表明,碰撞过程中每个车钩缓冲装置的相对偏移量和列车各节车厢的加速度最大值均沿列车运行向不断变小;列车前三节车厢的垂向爬车和横向屈曲最严重,转向架发生出轨现象.     

Monte Carlo randomization tests for large-scale abundance datasets on the GPU

Statistical tests are often performed to discover which experimental variables are reacting to specific treatments. Time-series statistical models usually require the researcher to make assumptions with respect to the distribution of measured responses which may not hold. Randomization tests can be applied to data in order to generate null distributions non-parametrically. However, large numbers of randomizations are required for the precise p-values needed to control false discovery rates. When testing tens of thousands of variables (genes, chemical compounds, or otherwise), significant q-value cutoffs can be extremely small (on the order of 10⁻⁵ to 10⁻⁸). This requires high-precision p-values, which in turn require large numbers of randomizations. The NVIDIA^® Compute Unified Device Architecture^® (CUDA^®) platform for General Programming on the Graphics Processing Unit (GPGPU) was used to implement an application which performs high-precision randomization tests via Monte Carlo sampling for quickly screening custom test statistics for experiments with large numbers of variables, such as microarrays, Next-Generation sequencing read counts, chromatographical signals, or other abundance measurements. The software has been shown to achieve up to more than 12 fold speedup on a Graphics Processing Unit (GPU) when compared to a powerful Central Processing Unit (CPU). The main limitation is concurrent random access of shared memory on the GPU. The software is available from the authors.     

基于STM8的红外与超声波测距仪设计

介绍了一种基于STM8单片机的红外和超声波相结合的距离继电器的应用设计。阐述了该距离继电器的测距原理。经实际应用证明,该距离继电器的测量距离远大于10 m,克服了普通超声波测量距离只能达到5 m左右的问题,并且消除了测量的盲区。测量精度可以精确到1 cm,符合并超过实际应用要求。     

Understanding the outsourcing learning curve: A longitudinal analysis of a large Australian company

Outsourcing continues to capture the attention of researchers as more companies move to outsourcing models as part of their business practice. Two areas frequently researched and reported in the literature are the reasons why a company decides to outsource, and outsourcing success factors. This paper describes an in-depth, longitudinal case study that explores both the reasons why the company decided to outsource and factors that impact on success. The paper describes how Alpha, a very large Australian communications company, approached outsourcing and how its approach matured over a period of 9 years. The paper concludes that although a number of reasons are proposed for a company's decision to outsource, lowering costs was the predominant driver in this case. We also describe other factors identified as important for outsourcing success such as how contracts are implemented, the type of outsourcing partner arrangement, and outsourcing vendor capabilities.

Method of imaging low density lipoproteins by atomic force microscopy

This short paper reports a simple method to image low density lipoproteins (LDL) using atomic force microscopy (AFM). This instrument allows imaging of biological samples in liquid and presents the advantage of needing no sample preparation such as staining or fixation that may affect their general structure. Dimensions (diameter and height) of individual LDL particles were successfully measured. AFM imaging revealed that LDL have a quasi-spherical structure on the x and y axis with an oblate spheroid structure in the z axis (i.e., height). LDLs were found to have an average diameter of 23 +/- 3 nm. The obtained mean height was 10 +/- 2 nm.     

一类轧机的板形最优化控制方法

分析了常规四辊CVC轧机板形控制的原理,结合生产实际给出了板形的最优化控制策略及其数学模型,该方法具有不需对板形缺陷进行识别,不用基于最小二乘法的曲线拟合的方法进行板形缺陷的识别的特点.对调节装置的调节量及多个调节装置的调节量采用联合求解方法,具有快速达到最佳优点,可推广到其它同类轧机的板形控制中去.     

Whatever happened to neurosis? An overview.

Discusses the decision to eliminate the term "neurosis" from the DSM-III. The history of the term is traced; weaknesses of DSM-II pertaining to neurosis are presented; theoretical and political processes in the deletion procedure are described; and an overview is given of the current resolution as presented in DSM-III. Instead of neurosis, "neurotic disorder" and "neurotic process" were distinguished to reduce potential theoretical bias. The process may or may not be seen by the clinician as causal in the disorder, but those of all theoretical persuasions should be able to agree on what the disorder is. (13 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)