Performance Changing Regularity of No.70 Road Asphalt with Different Aging Time

2013 ◽  
Vol 723 ◽  
pp. 136-140
Author(s):  
Yi Hua Nie ◽  
Ping Liu ◽  
Li Xin Xu ◽  
Jie Ding
Keyword(s):  
Thin Film ◽  
Aging Time ◽  
Resin Content ◽  
Change Processes ◽  
Road Asphalt ◽  
Performance Indexes ◽  
Before And After ◽  
Asphalt Performance ◽  
Relationship Of ◽  
The Relationship

In this paper, rolling thin film oven is used to heat No.70 road asphalt to simulate asphalt aging. Six aging time tests of 0min, 40min, 85min, 180min, 240min and 300min were carried and the relationship of asphalt performance indexes before and after aging was got as well as four components. The analysis results indicate that: as the aging time increases, change processes of all performance indexes followed curve of index and the correlation coefficient reached significant level. Changing regularity of asphalt four components are also got: the contents of saturate and aromatic both decrease with the aging time increasing, while asphaltene content and resin content increased and the increasing speed of resin is faster. Key words: No.70 road asphalt; four components; performance index; aging.

Richard Scheringer, the KPD and the Politics of Class and Nation in Germany, 1922–1969

2005 ◽  
Vol 14 (3) ◽  
pp. 317-346 ◽  
Author(s):  
TIMOTHY S. BROWN
Keyword(s):  
Interwar Period ◽  
Third Reich ◽  
Radical Right ◽  
High Profile ◽  
Army Officer ◽  
Modern Germany ◽  
Before And After ◽  
The Third Reich ◽  
Relationship Of ◽  
The Relationship

This article examines the life and times of Richard Scheringer, an army officer and supporter of Adolf Hitler who became famous during the early 1930s for his high-profile conversion to communism. Known in the closing years of the Weimar Republic as a point-man for Communist efforts to win support from the radical right, Scheringer survived the Third Reich to become a leading figure in the postwar Communist Party. His well-documented but little-studied career, bridging critical caesurae of modern Germany history, highlights the unique political constellation of the interwar period, demonstrating fundamental continuities in the relationship of German communism to the nation before and after 1945.

Limitations to prediction of maximal oxygen intake

1964 ◽  
Vol 19 (5) ◽  
pp. 919-927 ◽  
Author(s):  
Loring B. Rowell ◽  
Henry L. Taylor ◽  
Yang Wang
Keyword(s):  
Metabolic Rate ◽  
Pulse Rate ◽  
Oxygen Intake ◽  
Physical Conditioning ◽  
Maximal Oxygen Intake ◽  
Before And After ◽  
Normal Men ◽  
Accuracy Of Prediction ◽  
Relationship Of ◽  
The Relationship

The predictability of maximal O2 intake (max Vo2) was studied in four groups of normal men, 18–24 years of age. Prediction of max Vo2 was made from pulse rate and Vo2 at a single submaximal workload at an ambient temperature of 78 F by use of the nomogram of Åstrand and Ryhming (1954) and underestimated actual max Vo2 by 27 ± 7% and 14 ± 7% in a sedentary group, before and after 2frac12–3 months of physical training, and by 5.6 ȁ 4% in a group of ten endurance athletes. Accuracy of prediction in all groups varied with approximation of pulse rate to 128 beats/min at 50% of max Vo2. Nonspecific stresses increased predictive errors in all groups. Constants b (slope) and A (intercept) in the regression equation Vo2 = bP – A (where P is pulse rate), were determined from Vo2 and pulse measured at four submaximal workloads requiring 13–28 ml O2/kg min. Prediction of max Vo2 by extrapolation of the slope to maximal pulse rate resulted in underestimation of 700–800 ml O2/min. Removal of 14% of circulating hemoglobin decreased max Vo2 by 4% but there was no change in pulse rates or predicted max Vo2. The relationship of RQ to V22 during work provided no reliable basis for prediction of max Vo2. exercise pulse rate, oxygen intake, relationship; pulse rate, oxygen intake relationship in exercise; metabolic rate, maximal aerobic prediction of; aerobic metabolic rate, maximal, prediction of; phlebotomy, effect on maximal oxygen intake, pulse rate; blood loss, effect on maximal oxygen intake, pulse rate; training, effect on maximal oxygen intake, pulse rates; physical conditioning, effect on maximal oxygen intake, pulse rates Submitted on October 4, 1963

Impact of cigarette package warnings on attitudes towards sharing and gifting cigarettes in China: a nationwide study of smokers and non-smokers

2021 ◽  
pp. tobaccocontrol-2020-056160
Author(s):  
Yanhui Liao ◽  
Jinsong Tang ◽  
Ann McNeill ◽  
Brian C Kelly ◽  
Joanna E Cohen
Keyword(s):  
Cross Sectional Study ◽  
Social Practices ◽  
Sectional Study ◽  
Health Warnings ◽  
Cross Sectional ◽  
Percentage Points ◽  
Before And After ◽  
Relationship Of ◽  
The Relationship ◽  
Cigarette Package

BackgroundSharing and gifting cigarettes are common in China. These social practices promote cigarette consumption, and consequently may reduce quit rates in China. This study investigated sharing and gifting cigarettes, and the relationship of observing pictorial health warnings to attitudes towards sharing and gifting cigarettes in China.MethodsWe conducted an online nationwide cross-sectional study of 9818 adults in China. Experiences of sharing and gifting cigarettes, and attitudes towards sharing and gifting cigarettes before and after viewing text and pictorial health warnings on the packages were assessed, and compared between smokers and non-smokers.ResultsMost current smokers reported experiences of sharing (97%) and gifting (around 90%) cigarettes. Less than half of non-smokers reported sharing cigarettes and receiving gifted cigarettes, but over half (61.4%) gave cigarettes as a gift to others. More than half of non-smokers but less than 10% of smokers disagreed with sharing and gifting cigarettes. After observing both text and pictorial health warnings on the packages, disagreement with sharing and gifting cigarettes increased by more than 10 percentage points among both smokers and non-smokers.ConclusionHaving pictorial health warnings on cigarette packages may reduce sharing and gifting cigarettes in China.

HRTEM Study of Structure and Evolution of Highly Mismatched Heteroepitaxial Interface, GaSe/GaAs(100)

1998 ◽  
Vol 523 ◽  
Author(s):  
Z.R. Dai ◽  
S. R. Chegwidden ◽  
F. S. Ohuchi
Keyword(s):  
Thin Film ◽  
Intermediate Layer ◽  
Gaas Substrate ◽  
Structural Model ◽  
Rhombohedral Structure ◽  
Lattice Image ◽  
Thin Film System ◽  
Transmission Electron ◽  
Relationship Of ◽  
The Relationship

AbstractThe microstructural evolution of the GaSe/GaAs(100) thin film system was characterized by high resolution transmission electron microscopy (HRTEM). The relationship of crystallographic orientation between the GaSe thin film and the GaAs substrate is [011]GaAs ‖ [1100]GaSe/(100)GaAs ‖ (0001)GaSe, with the dominant polytype for the GaSe thin film being a γ-type which has a 3R-rhombohedral structure with R3m space group. An intermediate layer was observed between the GaAs substrate and the GaSe thin film, with a structure distinct from that of either GaAs or GaSe. The result of a fast Fourier transform (FFT) of the lattice image corresponding to the intermediate layer indicated that its crystal structure was associated with that of α-Ga2Se3. A new vacancy ordered structural model of β-Ga2Se3 was suggested.

Dynamic Aggregation Method of Induction Motors Based on Coherent Characteristics

2014 ◽  
Vol 960-961 ◽  
pp. 1214-1224
Author(s):  
Jian Zhang ◽  
Xiao Dong Yuan
Keyword(s):  
Reactive Power ◽  
Induction Motors ◽  
Power System Simulation ◽  
Aggregation Method ◽  
Before And After ◽  
Fuzzy C Means Clustering ◽  
Equivalent Motor ◽  
The Individual ◽  
Relationship Of ◽  
The Relationship

Parameters of induction motors have crucial effects on power system simulation. This paper proposes a dynamic aggregation method of induction motors. In this method, firstly, starting off the electromechanical models of induction motors, taking the coefficients of the electromechanical equations and steady state slips of motors as the characteristic vectors, motors are grouped with fuzzy C-means clustering method. Then, electromechanical equations of the equivalent motor are obtained by averaging that of the individual motors in the same group. Finally, parameters of equivalent motors are calculated based on the relationship of transient impedance before and after aggregation, and the principle that active and reactive power loads are equal before and after aggregation. Simulation results show that the proposed method can improve the precision of simulation

The Effect of Upper Abdominal Surgery on the Relationship of Airway Closing Point to End Tidal Position

1972 ◽  
Vol 43 (2) ◽  
pp. 137-141 ◽  
Author(s):  
J. I. Alexander ◽  
P. W. Horton ◽  
W. T. Millar ◽  
R. K. Parikh ◽  
A. A. Spence
Keyword(s):  
Abdominal Surgery ◽  
Significant Negative Correlation ◽  
Contributory Factor ◽  
Upper Abdominal Surgery ◽  
Before And After ◽  
End Tidal ◽  
Upper Abdominal ◽  
Relationship Of ◽  
The Relationship ◽  
Arterial Po2

1. The relationship between end tidal position (ETP) and the point of lung emptying at which there is significant airways closure (CP) has been investigated before and after upper abdominal surgery in thirty-one patients. 2. A significant negative correlation between the index (ETP-CP) and the alveolar-arterial Po2 difference (A-ado2) was found. 3. Nineteen of these patients had a vagotomy and drainage operation and, in this group, there was a greater fall in ETP than in CP in the first and second postoperative days. 4. It is suggested that airway closure is a contributory factor to the known hypoxaemia following abdominal surgery.

scholarly journals A Morphometric Study of the Foramen of Diaphragma Sellae and Delineation of Its Relation to Optic Neural Pathways through Computer Aided Superimposition

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Doris George Yohannan ◽  
Renuka Krishnapillai ◽  
Romi Suresh ◽  
Shobha Ramnarayan
Keyword(s):  
Pituitary Tumors ◽  
Morphometric Study ◽  
Neural Pathways ◽  
Optic Chiasma ◽  
Lateral Dimension ◽  
Before And After ◽  
The Mean ◽  
Diaphragma Sellae ◽  
Relationship Of ◽  
The Relationship

The diaphragma sellae (DS) is a fold of dura that forms a partial roof over the pituitary gland. The foramen of the diaphragma sellae (FDS) is thereby a pathway for suprasellar extension of pituitary tumors. The purpose of this study was to describe the anatomical dimensions of the DS and FDS and to understand the relationship of FDS with the overlying optic chiasma. The study was conducted in 100 autopsy cases. Measurements were taken using vernier calipers. Photographs, taken before and after removal of optic pathway, were superimposed using image processing software. The results showed that the mean A-P dimension of DS was 1.17 ± 0.48 cm; the lateral dimension of DS was 1.58 ± 0.60 cm. The mean A-P dimension of FDS was 0.66 ± 0.42 cm; the lateral dimension of FDS was 0.82 cm ± 0.54 cm. The shapes of FDS were irregular (40%), transversely oval (29%), circular (13%), sagittally oval (11%), or trapezoid with posterior dimension more than the anterior one (6%) or anterior dimension more than the posterior one (1%). The margins of FDS were either well defined (31%) or ill defined (69%). The positional relation of FDS to optic chiasma was also found out.

Reaction Time and Psychophysiological Activity

1982 ◽  
Vol 54 (2) ◽  
pp. 379-390 ◽  
Author(s):  
Eugene A. Sersen ◽  
Johs. Clausen ◽  
Arnold Lidsky
Keyword(s):  
Skin Conductance ◽  
Motor Performance ◽  
Reaction Times ◽  
Heart Period ◽  
High Arousal ◽  
Activation Theory ◽  
Before And After ◽  
Complex Relationships ◽  
Relationship Of ◽  
The Relationship

Disjunctive reaction times (RT) involving two interstimulus intervals were obtained from 10 subjects during 4 sessions while recording heart period, skin conductance, and EEG. Multiple regression analysis indicated complex relationships between RT and skin conductance and heart period which varied with session level. The relationship of RT and skin conductance was predominantly linear but positive when level of skin conductance was low and negative when high. Heart period showed a predominantly curvilinear trend which also varied with level during the session. Fastest RTs tended to occur with long heart periods in short heart period sessions and vice versa. Fast RTs were also accompanied by relatively low EEG power before and after stimulation and by higher EEG frequency after the stimulus. The pattern of findings did not fully accord with the expectations of activation theory, and the proportion of RT variance accounted for was small. It is suggested that activation may vary to maintain a constant level of motor performance Faster RT may occur under relaxed conditions and high arousal, and concentrated attentiveness may be an attempt to compensate for boredom or distraction.

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