A regularization method for a Cauchy problem of Laplace's equation in an annular domain

In this paper, we propose a new regularization method based on a finite-dimensional subspace generated from fundamental solutions for solving a Cauchy problem of Laplace's equation in an annular domain. Based on a conditional stability for the Cauchy problem of Laplace's equation, we obtain a convergence estimate under the suitable choice of a regularization parameter and an a-priori bound assumption on the solution. A numerical example is provided to show the effectiveness of the proposed method from both accuracy and stability.     

Effect of display location on control-display stereotype strength for translational and rotational controls with linear displays

Experiments were designed to investigate the effects of control type and display location, relative to the operator, on the strength of control/display stereotypes. The Worringham and Beringer Visual Field principle and an extension of this principle for rotary controls (Hoffmann E.R., and Chan A.H.S. 2013). “The Worringham and Beringer ‘Visual Field’ Principle for Rotary Controls. Ergonomics.” 56 (10): 1620–1624) indicated that, for a number of different control types (rotary and lever) on different planes, there should be no significant effect of the display location relative to the seated operator. Past data were surveyed and stereotype strengths listed. Experiments filled gaps where data are not available. Six different control types and seven display locations were used, as in the Frame of Reference Transformation Tool (FORT) model of Wickens et al. (Wickens, C.D., Keller, J.W., and Small, R.L. (2010). “Left. No, Right! Development of the Frame of Reference Transformation Tool (FORT).” Proceedings of the Human Factors and Ergonomics Society 54th Annual Meeting September 2010, 54: 1022–1026). Control/display arrangements with high stereotype strengths were evaluated yielding data for designers of complex control/display arrangements where the control and display are in different planes and for where the operator is moving. It was found possible to predict display/control arrangements with high stereotype strength, based on past data.

Practitioner Summary: Controls and displays in complex arrangements need to have high compatibility. These experiments provide arrangements for six different controls (rotary and translational) and seven different display locations relative to the operator.     

利用GM（1,1）模型对地下水恢复进行预测分析

沧州市区关停深层自备井后,深层地下水恢复取得了明显的效果。本文采用色系统中GM（1,1）模型对第Ⅴ含水组地下水埋深进行预测。     

Development and validation of a biodynamic model for predicting multi-finger movements in cylinder-grasping tasks †

This article describes the development and validation of a model for predicting multi-finger movements in grasping activities. The model builds upon a newly proposed approach that incorporates forward dynamics and a system identification procedure, and is amenable to empirical tests. A database of multi-fingered grasping movements performed by 28 subjects was established and divided into four sets, one for model development and three for model validation. In the development phase, model parameter values were estimated by the iterative system identification procedure through a physics-based heuristic algorithm. The estimated parameter values were then statistically synthesised and integrated into the prediction model. In the validation phase, the model was applied to three novel datasets containing different grasping movements involving objects of varied sizes and different subjects. The results demonstrated the model's ability to predict hand prehensile movements with error magnitudes comparable to the inter-person variability in performing such movements. New insights into the control of multi-fingered hand prehensile movements at the systems and joint levels emerged from the model development and validation process. The current study contributes to building a foundation for long-term development of realistic biodynamic simulation of multi-finger hand movements. Such simulation capabilities will aid in design of hand-operated tools, devices or hand-intensive work for proactive ergonomics and in evaluation as well as treatment of functional impairment of the hand.     

GM（1,1）在航道驳岸沉降监测中的应用

在施工建设中,实时准确地观测、分析和预报建筑物的沉降变形对最后施工的成功与否有着很大的影响。在变形监测中经常遇到数据信息不完备的情况,而灰色系统理论则是用来解决此问题的有效方法。建立了灰色预测模型,并将其应用于苏南运河整治工程中新建驳岸的沉降监测分析和预测中,预测效果较好。     

树立职业价值观 做好读者服务工作

明确图书馆读者服务工作的内涵以及图书馆读者服务工作存在的问题,了解正确职业价值观对图书馆工作的重要作用,探讨如何以正确的职业价值观来更好地为读者服务,这对图书馆馆员提高自身的读者服务工作水平具有重要的现实意义。     

公共项目公私合作(PPP)控制权配置的决策模型

针对公私合作(PPP)项目,以VFM效果作为政府收益的评价指标,分析控制权为连续变量的情况下投资、成本和收益等变量的取值,在此基础上构建控制权配置与VFM效果的相关关系模型,结果发现,VFM效果与项目公司拥有的控制权呈二次曲线关系,因此,二次项系数、一次项系数及对称轴位置影响VFM的单调性,进而决定着控制权的最佳配置.论文基于上述原理构建控制权配置的决策模型,并通过算例验证所得模型具有较强的适用性.     

氮磷钾高浓度烤烟专用肥

介绍硝酸铵－磷酸－铵－硫酸钾系高浓度烤烟专用复合肥的开发应用，三年的试验推广的实践证明，其肥效可与进口肥相媲美，配方合理，但价格比进口肥每吨低４００元左右。     

塑料瓶贴标用乳液胶的研究

本文分析了塑料瓶的表面结构特性及其对贴标胶的要求，简介乳液胶的合成过程，讨论了聚会温度、搅拌速度、增粘剂和改性剂对贴标胶的影响。     

关于第二积分中值定理渐近性的一个注记

对于第二积分中值定理中的搴，本文给出并证明了比文献[3]更一般的结论，文献[3]的有关定理可以看成本文定理的直接推论．