scholarly journals Saving Money by Cutting Corners

1976 ◽  
Vol 29 (4) ◽  
pp. 418-420
Author(s):  
J. D. Proctor
Keyword(s):  
Turning Point ◽  
Standard Procedure ◽  
Turning Points ◽  
Operating Costs ◽  
The Difference

This note assesses the savings in (time- and fuel-dependent) direct operating costs that are possible if every turning point on an airway is passed on the inside. Figure 1 shows a route with turning points at A, B and C. If a pilot follows the standard procedure of flying along AB until he is sure that he has passed B, his total track distance is (c + d + a + b).To simplify the mathematics let us assume that he turns instead through half the required angle at a distance d before he reaches B and completes the turn after passing B abeam (and very close). His track distance will be (c + e + f). The difference in distance δ, representing the saving, is therefore (d + a + b) – (e + f).

Effect of Magnetic Fields on the Resistance and Microstructure of Al-Cu Alloy during Solidification Processing

2011 ◽  
Vol 287-290 ◽  
pp. 2916-2920
Author(s):  
Chun Yan Ban ◽  
Peng Qian ◽  
Xu Zhang ◽  
Qi Xian Ba ◽  
Jian Zhong Cui
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Turning Points ◽  
Probe Method ◽  
Solidification Processing ◽  
Ac Magnetic Field ◽  
Dc Magnetic Field ◽  
Cu Alloy ◽  
The Difference ◽  
Good Agreement

The resistance of Al-21%Cu alloy under no magnetic field, DC magnetic field and AC magnetic field from liquid to solid was measured by a four-probe method. The difference of resistance versus temperature curves (R-T curves) was analyzed. It is found that the R-T curves of Al-21%Cu alloy are monotone decreasing and have two obvious turning points. Under DC magnetic field, the liquidus and solidus temperatures of the alloy both decrease, while under AC magnetic field, the liquidus and solidus temperatures both increase. There is a good agreement between the microstructure of quenching sample and R-T curves. The mechanism of the effect of magnetic fields was discussed.

Fragmenting Feminine-Athletic Identities: Identity Turning Points During Girls’ Transition into High School

2021 ◽  
pp. 216747952110129
Author(s):  
Alaina C. Zanin ◽  
Laura V. Martinez ◽  
Lucy C. Niess
Keyword(s):  
High School ◽  
Identity Development ◽  
Turning Point ◽  
Communication Theory ◽  
Sport Participation ◽  
Female Athletes ◽  
Turning Points ◽  
Athletic Identity ◽  
Communication Theory Of Identity ◽  
And Gender

This study employed a turning point analysis to document events that influence the development of athletic identities in female athletes transitioning into high school. All participants ( N = 28), between the ages of 14–15 years old, belonged to a competitive club soccer team located in the southwestern United States. Through an analysis of pre- and post-season interviews and bi-weekly video journal entries, data revealed several fragmenting turning point events related to participants’ athletic identity development. These fragmenting turning points paired with the communication theory of identity (CTI) framework highlighted three identity gaps: (a) athletic-relational, (b) athletic-communal, and (c) athletic-enacted. Theoretical and practical implications are discussed regarding turning points in relation to athletic identity development and gender disparities in sport participation.

scholarly journals Shaftesbury and the Ethical Poets in England, 1700-1760

PMLA ◽  
1916 ◽  
Vol 31 (2) ◽  
pp. 264-325
Author(s):  
C. A. Moore
Keyword(s):  
Eighteenth Century ◽  
Ethical Theory ◽  
Turning Point ◽  
English Literature ◽  
Popular Literature ◽  
General Interest ◽  
Human Interest ◽  
French Philosophy ◽  
History Of ◽  
The Difference

One of the notable changes in English literature during the eighteenth century is a growth in altruism. It is a change which involves not only a breaking down of the old aristocratic indifference to the lower classes of society during the Restoration, but the establishment of a new ethical theory; literature displayed a broader human interest and assigned a new reason for its sympathy. It is usually assumed that the difference is due principally to the influx of French philosophy. This assumption at least minimizes the importance of a development which had taken place in the literature of England itself before the general interest in Rousseau. (The change, especially in poetry, is to be traced largely, I think, to the Characteristics (1711) of Lord Shaftesbury, whose importance as a literary influence in England has never been duly recognized. It has long since been established that his system of philosophy constitutes a turning-point in the history of pure speculation, especially in ethics; it has more recently been shown also that he is responsible for many of the moral ideas which inform the popular literature of Germany from Haller to Herder. But his influence upon the popular writers of his own country has received scant notice.

Judging the stance of the business cycle

2021 ◽  
pp. 222-240
Author(s):  
Jesper Rangvid
Keyword(s):  
Business Cycle ◽  
Turning Point ◽  
Turning Points ◽  
Leading Indicators ◽  
Economic Variables ◽  
Near Term ◽  
The Business Cycle

This chapter describes if and how we can detect business-cycle turning points. What variables should we study if we want to say something about the likelihood that the business cycle will change? The chapter discusses business-cycle ‘indicators’. It distinguishes between lagging, coincident, and leading indicators. Lagging indicators refer to economic variables that react to a change in the business cycle, i.e. variables that react after a business-cycle turning point. Coincident indicators tell us something about where we are right now in the business cycle. Leading indicators, which are probably the most important ones, tell us about the near-term outlook for the business cycle, i.e. forecast the business cycle. The chapter emphasizes that business-cycle turning points are hard to predict, but also that some indicators are more informative than others.

Spectral characteristics of hydromagnetic waves in the magnetosphere

1987 ◽  
Vol 38 (2) ◽  
pp. 235-243 ◽  
Author(s):  
S. P. Kuo ◽  
M. C. Lee ◽  
A. Wolfe
Keyword(s):  
Turning Point ◽  
Spectral Characteristics ◽  
Turning Points ◽  
Resonant Mode ◽  
Period Range ◽  
Plasma Density Profile ◽  
Cavity Modes ◽  
Hydromagnetic Waves ◽  
Radial Axis ◽  
East West

This work is intended to explain why the resonant response of the magnetosphere prefers to have discrete frequencies. Using a cylindrical model for the outer magnetosphere with a plasma density profile proportional to 1/r, we show that the eigenequation characterizing the eigenmodes of the hydromagnetic waves in this model has two turning points along the radial axis. The locations of the turning points depend upon the values of the eigenperiod and the associated east-west wavenumber of the eigenmode. The energy spectrum of the excited cavity modes is seen to have sharp peaks at discrete frequencies when the surface perturbations have a uniform spectrum in the frequency range of interest. We, therefore, have also shown that only the discrete set of the magnetospheric cavity eigenmodes can efficiently couple the perturbations excited on the boundary of the magnetosphere to the field-line resonant mode excited inside the inner turning point of the cavity eigenmode. The most likely values of east-west wavenumbers and wave period range are determined.

(Re)Constructing Relationships with Grandparents: A Turning Point Analysis of Granddaughters' Relational Development with Maternal Grandmothers

1998 ◽  
Vol 46 (4) ◽  
pp. 287-303 ◽  
Author(s):  
Sherry Holladay ◽  
Rita Lackovich ◽  
Margaret Lee ◽  
Mindy Coleman ◽  
David Harding ◽  
...  
Keyword(s):  
Turning Point ◽  
Turning Points ◽  
Transition To College ◽  
Relational Development ◽  
Negative Experiences ◽  
Point Analysis ◽  
The Family ◽  
Relational Closeness ◽  
Geographic Separation ◽  
Interviewing Technique

This study explores how granddaughters account for the development of their relationships with their maternal grandmothers. The retrospective interviewing technique was used to elicit turning points in their relational histories. Analysis of the turning point content revealed several different types of turning points that reflected both normative and idiosyncratic events. Increases in relational closeness resulted from decreases in geographic separation, engaging in shared activities, deaths or serious illnesses in the family, and family disruptions. Decreases in closeness were associated with negative experiences with the grandmother, increases in geographic separation, and the transition to college. Granddaughters reported that turning points related to death or serious illness and participation in shared activities were the most significant ones in their relationships with maternal grandmothers.

Turning Points in Labor Migration: The Case of Hong Kong

1994 ◽  
Vol 3 (1) ◽  
pp. 93-118 ◽  
Author(s):  
Ronald Skeldon
Keyword(s):  
Hong Kong ◽  
Rural Population ◽  
Labor Migration ◽  
Turning Point ◽  
Turning Points ◽  
Emigration And Immigration ◽  
Complex Sequence ◽  
Professional Workers ◽  
Developmental Characteristics ◽  
City State

The Hong Kong experience of emigration and immigration does not fit neatly into models of migration transition. As a city-state with a small rural population, it has exhibited different developmental characteristics from the larger Asian newly industrialized economies. Geopolitical factors have also played a key role in “patterns” of migration, such as restrictive immigration policies in receiving countries. Also significant are individual considerations of political and economic risk, as evidenced by the current rise in the emigration of skilled and professional workers prior to the return of Hong Kong to China. The author concludes that, rather than a simple turning point in labor migration, there may be multiple turning points in a complex sequence of change.

A Procedure for Non-Linear Structural Collapse Analysis

2014 ◽  
Author(s):  
Shengming Zhang ◽  
Lei Jiang
Keyword(s):  
Structural Engineering ◽  
Standard Procedure ◽  
Analysis Procedure ◽  
Structural Collapse ◽  
Element Analysis ◽  
Collapse Analysis ◽  
Non Linear ◽  
Mesh Density ◽  
The Difference ◽  
Offshore Industry

It is a normal practice nowadays in structural engineering, including ships and offshore industry, to perform non-linear finite element analysis to assess the structure’s capacity for design or evaluation purposes. However, experience has shown that the quality and accuracy of the non-linear FE analysis results are highly dependent on the skill of the person performing the analysis and the analysis procedure used. The difference between results obtained by different people can be significant. In some cases, the results can be misleading. It is considered that a unified procedure is necessary. This paper is moving a step further and trying to develop a standard procedure which can provide a guideline for structural collapse analysis of stiffened panels under any load combinations. The paper provides the technical background on the analysis procedure and the key steps such as model extent, mesh density, initial imperfections, and boundary conditions. Analysis examples are provided in the paper for reference and discussions.

scholarly journals A singular perturbation problem with a turning point

1971 ◽  
Vol 5 (1) ◽  
pp. 61-73 ◽  
Author(s):  
A.M. Watts
Keyword(s):  
Singular Perturbation ◽  
Exact Solutions ◽  
Turning Point ◽  
Singular Perturbation Problem ◽  
Positive Parameter ◽  
Perturbation Problem ◽  
Small Positive Parameter ◽  
The Difference ◽  
Asymptotic Forms

We consider the equationεy″ + p(x)y′ + q(x)y = 0, where ε is a small positive parameter and p vanishes in the interval. Two asymptotic forms of solution are obtained and a rigorous estimate is made of the difference between the exact solutions and the asymptotic forms.

scholarly journals The Regularized Trace Formula of the Spectrum of a Dirichlet Boundary Value Problem with Turning Point

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Zaki F. A. El-Raheem ◽  
A. H. Nasser
Keyword(s):  
Boundary Value Problem ◽  
Trace Formula ◽  
Turning Point ◽  
Dirichlet Boundary ◽  
Infinite Sequence ◽  
Boundary Value ◽  
Turning Points ◽  
Dirichlet Boundary Value Problem ◽  
Regularized Trace

We calculate the regularized trace formula of the infinite sequence of eigenvalues for some version of a Dirichlet boundary value problem with turning points.

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