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91.
Romero-Canyas Rainer; Downey Geraldine; Reddy Kavita S.; Rodriguez Sylvia; Cavanaugh Timothy J.; Pelayo Rosemary 《Canadian Metallurgical Quarterly》2010,99(5):802
Societies and social scientists have long held the belief that exclusion induces ingratiation and conformity, an idea in contradiction to robust empirical evidence linking rejection with hostility and aggression. The classic literatures on ingratiation and conformity help resolve this contradiction by identifying circumstances under which rejection may trigger efforts to ingratiate. Jointly, findings from these literatures suggest that when people are given an opportunity to impress their rejecters, ingratiation is likely after rejection experiences that are harsh and that occur in important situations that threaten the individual's self-definition. Four studies tested the hypothesis that people high in rejection sensitivity and therefore dispositionally concerned about rejection will utilize opportunities to ingratiate after harsh rejection in situations that are self-defining. In 3 studies of situations that are particularly self-defining for men, rejection predicted ingratiation among men (but not women) who were high in rejection sensitivity. In a 4th study, harsh rejection in a situation particularly self-defining for women predicted ingratiation among highly rejection-sensitive women (but not men). These findings help identify the specific circumstances under which people are willing to act in socially desirable ways toward those who have rejected them harshly. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
92.
We outline a model for security investment that reflects dynamic interaction between a defender, who faces uncertainty, and an attacker, who repeatedly targets the weakest link. Using the model, we derive and compare optimal security investment over multiple periods, exploring the delicate balance between proactive and reactive security investment. 相似文献
93.
Jegatheswaran Ratnasingam Rainer Grohmann Frieder Scholz 《Holz als Roh- und Werkstoff》2010,5(2):115-116
In this study, the kiln drying yield of 30 mm Rubberwood (Hevea brasiliensis)
used for the furniture manufacturing industry in South East Asia was evaluated. The results showed that
the average yield loss was 10%, and end-checks, splits and warping were the most common drying defects.
It was found that sawn timber from older trees (> 21 years) were less prone to drying defects,
and the use of stress relieving treatments significantly reduced the incidence of drying defects. 相似文献
94.
95.
This paper considers the inverse 1-center location problem with edge length augmentation on a tree network T with n + 1 vertices. The goal is to increase the edge lengths at minimum total cost subject to given modification bounds such that
a predetermined vertex s becomes an absolute 1-center under the new edge lengths. Using a set of suitably extended AVL-search trees we develop a combinatorial algorithm
which solves the inverse 1-center location problem with edge length augmentation in O(n log n) time. Moreover, it is shown that the problem can be solved in O(n) time if all the cost coefficients are equal. 相似文献
96.
Gawronski Bertram; LeBel Etienne P.; Peters Kurt R.; Banse Rainer 《Canadian Metallurgical Quarterly》2009,135(3):369
J. De Houwer, S. Teige-Mocigemba, A. Spruyt, and A. Moors’s (see record 2009-05290-001) normative analysis of implicit measures provides an excellent clarification of several conceptual ambiguities surrounding the validation and use of implicit measures. The current comment discusses an important, yet unacknowledged, implication of J. De Houwer et al.’s analysis, namely, that investigations addressing the proposed implicitness criterion (i.e., does the relevant psychological attribute influence measurement outcomes in an automatic fashion?) will be susceptible to fundamental misinterpretations if they are conducted independently of the proposed what criterion (i.e., is the measurement outcome causally produced by the psychological attribute the measurement procedure was designed to assess?). As a solution, it is proposed that experimental validation studies should be combined with a correlational approach in order to determine whether a given manipulation influenced measurement scores via variations in the relevant psychological attribute or via secondary sources of systematic variance. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
97.
Stefan Linsinger Matthias Eul Christian Schwickert Rodolphe Decourt Bernard Chevalier Ute Ch. Rodewald Jean-Louis Bobet Rainer Pöttgen 《Intermetallics》2011,19(10):1579-1585
New ordered Laves phases RENi4Mg (RE = Sc, Sm, Tb–Lu) were synthesized from the elements in sealed tantalum ampoules in an induction furnace. Six of the structures were refined on the basis of X-ray single crystal data. The diffraction experiments gave hint for small homogeneity ranges RE1+xNi4Mg1?x. Magnetic susceptibility measurements show Curie–Weiss behavior for RE = Gd, Dy, Ho, Tm, Yb and the resulting effective magnetic moments suggest both stable trivalent states for all RE and a non-magnetic state for Ni. Gd1+xNi4Mg1?x (x ≈ 0.12) orders antiferromagnetically at a Néel temperature of TN = 4.6(5) K. Resistivity measurements reflect the metallic nature of these compounds. 相似文献
98.
Rainer Dudek Ralf Doering Christine Bombach Bernd Michel 《Microelectronics Reliability》2009,49(8):839-845
Secondary effects on thermal fatigue of solder joints, which frequently have been neglected, were studied by means of the finite element method (FEM). Based on a semi-empirical approach to predict fatigue life by evaluating the cyclic accumulated equivalent creep strain or energy density, effects of organic boards intrinsic properties on solder joint fatigue were investigated. Aspects of more realistic FR-4 board modelling were studied, in particular concerning its in-plane anisotropy and intrinsic warpage behaviour. Intrinsic board warpage was measured on test board level as well as for boards from series production. High intrinsic warpage was in particular found for several test boards. The effects for the worst case scenario observed so far were analysed for both first level and second level interconnects. The change in predicted fatigue life varied between 30% and 500%, the latter most critical effects were found at large QFN components. Another secondary effect studied was to include the frequently neglected interfacial intermetallics into FEM. It turned out that for components with relatively large standoff like LFBGAs the effects were actually negligible, but for the highly miniaturized components like chip resistors CR0201 they are the decisive factor. 相似文献
99.
On measuring the accuracy of SLAM algorithms 总被引:1,自引:0,他引:1
Rainer Kümmerle Bastian Steder Christian Dornhege Michael Ruhnke Giorgio Grisetti Cyrill Stachniss Alexander Kleiner 《Autonomous Robots》2009,27(4):387-407
In this paper, we address the problem of creating an objective benchmark for evaluating SLAM approaches. We propose a framework
for analyzing the results of a SLAM approach based on a metric for measuring the error of the corrected trajectory. This metric
uses only relative relations between poses and does not rely on a global reference frame. This overcomes serious shortcomings
of approaches using a global reference frame to compute the error. Our method furthermore allows us to compare SLAM approaches
that use different estimation techniques or different sensor modalities since all computations are made based on the corrected
trajectory of the robot.
We provide sets of relative relations needed to compute our metric for an extensive set of datasets frequently used in the
robotics community. The relations have been obtained by manually matching laser-range observations to avoid the errors caused
by matching algorithms. Our benchmark framework allows the user to easily analyze and objectively compare different SLAM approaches. 相似文献
100.
The aim of the current study was to investigate the effect of oxidation on abrasive wear behaviour of TiC based cermets at temperatures ranging from 20 to 900 °C. Three types of material performance maps were constructed: oxidation rate maps, wear rate maps and maps showing the effect of oxidation on abrasion. Discussion on the performance of different cermet grades is supported by the SEM images combined with EDS and XRD analysis. The results should facilitate the selection of TiC-based cermets providing optimum composition of cermets for high temperature applications. 相似文献