Origin软件在光电效应实验数据处理中的应用

首先简要介绍了Origin软件的特点、功能和使用方法,其次以"光电效应"实验为例,给出Origin软件进行实验数据处理的具体方法并说明该方法的有效性。     

Excel和Origin在物理实验数据处理中的应用

本文以物理实验中常见的数据处理为例,说明Excel与Origin计算软件在实验数据处理中的应用。与传统的数据处理方法相比,计算机软件处理数据大大简化了计算过程,提高了计算结果的准确性。     

Origin在大学物理实验数据处理中的应用

首先介绍了Origin软件的特点及功能优势,其次给出了利用Origin处理夫兰克-赫兹实验数据的实例,最后指出了应用Origin对物理实验数据进行处理,具有方法简便、快捷、准确、高效的特点。     

Origin软件在大学生创新项目中的应用实践

与Excel软件相比,Origin不仅可以根据数据绘制出包括条状、线形以及扇形和三维等满意的图形,还可以将几组数据放在同一个图中进行比较处理的同时进行分析。本文结合大学生创新项目实施中遇到的部分数据处理和分析,得出一些有关Origin软件的使用体会。为了给实施大学生创新项目提供更加完美的数据表达,希望最终得出的可视化数据制图和数据分析能够更加科学、直观和美观,因此,大学生在使用该软件的过程中,建议其能够一边学习并一边结合练习进行实践。     

Origin 8软件在弹簧振子和惯性秤中的应用

采用Origin软件研究了惯性称和弹簧振子的振动周期T2和质量m的关系以及不同形状的弹簧修正系数C的关系。通过Origin软件拟合可以得到符合实验要求的光滑曲线,使得实验结果处理更加直观和简便。实验结果表明,弹簧的修正系数C和弹簧的形状有关,不具有普适性。     

民用建筑火灾CFAST模拟及分析

运用CFAST6.0区域火灾模拟软件,针对一个典型的民用建筑起火房间进行火灾模拟计算,得出着火房间上层烟气温度、走廊烟气层高度、走廊下层烟气温度及走廊中CO浓度等随时间变化的火灾参数,运用Origin软件对各参数进行数据处理得出相应的变化曲线,并结合曲线进行了详细分析。     

Origin9.0在肌电图分析处理中的应用初探

Origin是一个多文档界面的应用程序,功能强大,普遍用于数据分析和科研绘图。本文应用Origin对肌电图数据进行处理,并分别比较了IIR和FFT两种处理结果的差异。结果表明Origin软件在信号处理过程中具有上手容易、方便快速的特点。     

MATLAB在化学工程与工艺实验数据处理中的应用探讨

随着科技的不断发展与进步,MATLAB软件开始在化学工程与工艺实验数据处理中应用开来。因为传统的数据处理方式十分繁琐,因此MATLAB软件的出现弥补了传统化工实验数据的数据处理缺陷,提高了化工实验数据的处理效率。文章通过研究MATLAB软件在化学工程与工艺实验数据处理中的应用,分析其处理数据的优势与特点。     

Origin软件在大学物理实验教学中的应用

本文介绍了大学物理实验课程数据处理的现状。以两个实验为例,利用origin软件进行数据处理及作图,说明在大学物理实验课程中引入origin软件辅助教学的优越性。     

牛顿环实验数据的处理方法研究

用牛顿环实验中的实测数据,比较牛顿环实验的两种数据处理方法,通过对这两种方法的理论分析,论证了加权平均法是该实验数据处理的最佳方法,提出了借助计算机用matlab软件处理牛顿环实验的数据将简化加权平均法。     

浅谈或有事项

在企业核算过程中，经常面临某些不确定问题，需要会计人员和出分析和判断，即企业有时发生或有事项，应对此有所准备，并要进行确认、计量、披露。     

Minimax regret treatment choice with covariates or with limited validity of experiments

This paper continues the investigation of minimax regret treatment choice initiated by Manski (2004). Consider a decision maker who must assign treatment to future subjects after observing outcomes experienced in a sample. A certain scoring rule is known to achieve minimax regret in simple versions of this decision problem. I investigate its sensitivity to perturbations of the decision environment in realistic directions. They are as follows. (i) Treatment outcomes may be influenced by a covariate whose effect on outcome distributions is bounded (in one of numerous probability metrics). This is interesting because introduction of a covariate with unrestricted effects leads to a pathological result. (ii) The experiment may have limited validity because of selective noncompliance or because the sampling universe is a potentially selective subset of the treatment population. Thus, even large samples may generate misleading signals. These problems are formalized via a “bounds” approach that turns the problem into one of partial identification.In both scenarios, small but positive perturbations leave the minimax regret decision rule unchanged. Thus, minimax regret analysis is not knife-edge-dependent on ignoring certain aspects of realistic decision problems. Indeed, it recommends to entirely disregard covariates whose effect is believed to be positive but small, as well as small enough amounts of missing data or selective attrition. All findings are finite sample results derived by game theoretic analysis.     

标准化的多维度认识

本文分析了标准化作用认识上的宏观性和间接性问题,从多个维度来讨论标准化,深化对标准化的认识.本文标准化认识的讨论包括:学科、学术、哲学、作用、地位等方面.讨论结果给出了新颖和贴切的标准化认识观点,尤其是提出了新的标准化7个作用.这些认识对标准化的理论研究和标准化的实践工作将提供有益启示和指导,将会增强人们对标准化的关注和信赖.     

Utility of wealth with many indivisibilities

We introduce a class of utility of wealth functions, called knapsack utility functions, which are appropriate for agents who must choose an optimal collection of indivisible goods subject to a spending constraint. We investigate the concavity/convexity and regularity properties of these functions. We find that convexity–and thus a demand for gambling–is the norm, but that the incentive to gamble is more pronounced at low wealth levels. We consider an intertemporal version of the problem in which the agent faces a credit constraint. We find that the agent’s utility of wealth function closely resembles a knapsack utility function when the agent’s saving rate is low.     

Analysis of Covariance with Non-normal Errors

Analysis of covariance techniques have been developed primarily for normally distributed errors. We give solutions when the errors have non-normal distributions. We show that our solutions are efficient and robust. We provide a real-life example.     

Games of chance with multiple objectives

We consider games of chance between two players: Player M can win only by amassing point totals in several categories before player N scores a prescribed total number n of points. Let M have k objectives, with m _i points required in category i and probability q _i of scoring a point in that category. We resolve certain special cases: (a) For all m _i equal, the probabilities of M winning are ordered by majorization of the vectors (q ₁,...,q _k ). (b) For all q _i equal, the probabilities of M winning are ordered by majorization of the vectors (m ₁,...,m _k ). (c) For all m _i equal and all q _i equal, the probability of M winning approaches 0 as n → ∞ or as k → ∞. The results, which follow from inequalities of majorization and Schur convexity, are in accord with intuition.      

On the efficiency of sampling with varying probabilities and the selection of units with replacement

Summary In this paper the efficiency of sampling with varying probabilities is being compared with the efficiency of some alternative methods, such as simple random sampling, ratio estimate, regression estimate, difference estimate, and stratified sampling with proportionate allocation. The variance formula of the estimated arithmetic mean in the case of sampling with varying probabilities (3) was transformed into (5) and (6) by expanding (3) in Taylor series and the comparisons between the above methods are obtained in Table 1. It was also shown that similar comparisons are possible with multi-stage designs.

---

Zusammenfassung Die Wirksamkeit des Stichprobenverfahrens mit ver?nderlichen Wahrscheinlichkeiten wird verglichen mit der Wirksamkeit einiger anderer Verfahren, u.z. der uneingeschr?nkten Zufallsauswahl mit einfacher Hochrechnung und bei Verwendung der Verh?ltnis-, Regressions- und Differenzensch?tzung und der geschichteten Auswahl mit proportionaler Aufteilung. Zu diesem Zweck wurde die Formel für die Varianz des gesch?tzten arithmetischen Mittels im Fall des Verfahrens mit ver?nderlichen Wahrscheinlichkeiten (3) mithilfe einer Taylor-Entwicklung in (5) und (6) transformiert. Die Ergebnisse des Vergleichs sind in Tabelle 1 gegeben. Abschlie?end wird gezeigt, da? ?hnliche Vergleiche auch mit mehrstufigen Verfahren m?glich sind.

     

一例闭合性骨折并发健侧下肢深静脉血栓的护理体会

静脉血栓是静脉血液在血管内不正常的凝结引发的疾病,一旦发生,不仅给患者及家属带来精神上的痛苦和经济上的负担,甚至会造成患者生命危险。早期预防、及时发现、积极治疗至关重要。     

Forecasting with news sentiment: Evidence with UK newspapers

We investigate the performance of newspapers for forecasting inflation, output and unemployment in the United Kingdom. We concentrate on whether the economic policy content reported in popular printed media can improve on existing point forecasts. We find no evidence supporting improved nowcasts or short-term forecasts for inflation. The sentiment inferred from printed media, can however be useful for forecasting unemployment and output. Considerable improvements are also noted when using individual newspapers and keyword based indices.