scholarly journals Optimization of connected component labelling

2006 ◽  
Author(s):  
Richard Beare
Keyword(s):  
Connected Component ◽  
Improve Performance ◽  
Improved Performance

The report details some modifications made to the ITK {} in an attempt to improve performance. Some interesting observations were made during this process. A new filter using a different algorithm to perform the same function is also described and improved performance demonstrated.

scholarly journals PSVIII-35 Late-Breaking Abstract: Administration of an appeasing substance at castration improves performance of pre-conditioned beef crossbred steers

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 347-348
Author(s):  
Kelsey Schubach ◽  
Bruno I Cappellozza ◽  
Marcos Renato Burim ◽  
André Velasco ◽  
Fernando Sagrado ◽  
...  
Keyword(s):  
Feed Efficiency ◽  
Minimum Distance ◽  
Descriptive Analysis ◽  
Bos Indicus ◽  
Experimental Unit ◽  
Water Restriction ◽  
Improve Performance ◽  
Treatment Groups ◽  
Improved Performance ◽  
To Receive

Abstract Alternatives that alleviate stress-related responses and improve performance of the beef cattle herd are imperative and deserve further investigation. In previous trials, administration of the bovine appeasing substance (BAS) has improved performance of newly-weaned and feedlot received beef animals, as well as reduced the risk of dark, firm, and dry (DFD) cuts in carcass obtained from Bos indicus cattle. Therefore, this study was designed to evaluate the effects of BAS administration at castration on pre-conditioning performance of crossbred beef animals. On day 0, 390 crossbred Angus × Nellore animals were ranked by initial shrunk BW (255 ± 21.1 kg) and assigned to receive or not (CON) 5 mL/head of BAS (SecureCattle; Nutricorp, Araras, SP, Brazil) immediately before castration. From d 0 to 30, animals within treatments were maintained in 2 feedot pens with a minimum distance (300 m) to avoid contact between treatment groups and received a grass hay-based diet (70:30 roughage:concentrate ratio) ad libitum. On day 30, animals were individually weighed following 16 hours of feed and water restriction. Hence, a descriptive analysis was performed to evaluate pen dry matter intake (DMI) and feed efficiency (FE). Animal was considered the experimental unit and all data were analyzed using the PROC MIXED procedure of SAS (version 9.4; SAS Inst. Inc., Cary, NC). Bovine appeasing substance administration at castration improved ADG and BW change (P < 0.0001) compared with CON cohorts (0.983 vs. 1.155 kg/d and 29.5 vs. 34.6 kg for ADG and BW change, respectively). Total DMI was similar among treatments when reported as kg/d (6.70 vs. 6.75 kg) or % of BW (2.48 vs. 2.48%), whereas FE was dramatically improved in BAS-administered animals (146 vs. 172 g/kg for CON and BAS, respectively). In summary, BAS administration improved performance of crossbred beef animals for 30 days post-castration.

Effect of dietary energy content at different stages of growth on performance of intact male cattle

1976 ◽  
Vol 22 (2) ◽  
pp. 199-206 ◽  
Author(s):  
D. Levy ◽  
Z. Holzer ◽  
D. Ilan
Keyword(s):  
Energy Content ◽  
Live Weight ◽  
Carcass Composition ◽  
Dietary Energy ◽  
Constant Ratio ◽  
Improve Performance ◽  
Intact Male ◽  
Stages Of Growth ◽  
Improved Performance ◽  
Second Period

SUMMARYSix groups of Israeli-Friesian intact male calves were studied over growth periods of 200 to 300 kg, 300 to 400 kg, and 400 to 500 kg live weight. Different ratios (85: 15, 70: 30 and 50: 50) of concentrate to roughage were compared. Two groups received the same ratio (85: 15 or 70: 30) throughout the experiment. In the other groups, the proportion of concentrates was progressively increased or decreased.Live-weight gain in the first period ranged from 759 to 1013 g/day, i n the second period from 1095 to 1239 g/day and in the third period from 831 to 922 g/day. Overall rate of gain was highest in the groups receiving a constant ratio, regardless of the ratio used. Increasing the proportion of concentrates as the calves became heavier, which is common practice in Europe, did not improve performance and decreasing the proportion reduced performance. Only at 200 to 300 and at 400 to 500 kg live weight did a concentrate percentage higher than 50 result in improved performance.Dry-matter intake, relative to live weight, was higher with a ratio of 70: 30 than with one of 85: 15 or of 50: 50 in each period. Animals on a constant ratio of concentrates to roughage gave the most efficient conversion of feed energy to live weight.There were no significant differences in dressing percentage or in carcass composition.

scholarly journals AN OVERVIEW OF TIME-DOMAIN COMPUTATIONAL METHODS FOR AEROELASTIC INSTABILITIES OF MULTI-STAGE COMPRESSOR

2020 ◽  
Vol 4 ◽  
pp. 114-127
Author(s):  
Mehdi Vahdati ◽  
Fanzhou Zhao ◽  
Prathiban Sureshkumar
Keyword(s):  
Time Domain ◽  
Forced Response ◽  
Imperial College ◽  
Aeroelastic Stability ◽  
Improve Performance ◽  
Campbell Diagram ◽  
The Past ◽  
Multi Stage ◽  
Improved Performance ◽  
Turbine Design

Modern gas turbine design continues to move towards improved performance, reduced weight and reduced cost. As turbomachinery blade aerofoils are thinned to improve performance and reduce weight, aeroelastic issues such as flutter, forced response and stall driven vibrations become more predominant. Moreover, as the use of blisks (blade-integrated-disks) with very low mechanical damping becomes more common in modern compressor designs, accurate prediction of compressor aeroelastic stability in a multi-row environment becomes vital. This paper presents a review of aeroelasticity research carried out at Rolls-Royce Vibration University Technology Centre (VUTC) at Imperial College over the past 20 years. The aim is to summarise the unusual aeroelastic issues observed in multi-stage compressors into one document so that it can be used by other researchers in the field. Blade passing forced response is not addressed here as their existence can be detected by a Campbell diagram. The results presented here are based on numerical methods but where possible data from experiments are used to verify the numerical findings.

scholarly journals Method for Improved Performance of Fixed-Gain Self-Alignment in the Temperature Stabilizing State

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2188
Author(s):  
Inseop Lee ◽  
Juhyun Oh ◽  
Haesung Yu ◽  
Cheonjoong Kim ◽  
Sang Jeong Lee
Keyword(s):  
Curve Fitting ◽  
Navigation System ◽  
Inertial Navigation System ◽  
Inertial Sensors ◽  
Initial Alignment ◽  
Improve Performance ◽  
Performance Grade ◽  
Improved Performance ◽  
Initial Attitude ◽  
Navigation Information

Self-alignment (or initial alignment) is the process by which the Inertial Navigation System (INS) is aligned using only measurements from the inertial sensors and the reference navigation information in the stationary state. The main purpose of self-alignment is to calculate the initial attitude of the INS. The accuracy of self-alignment is determined by the performance grade of the inertial sensors, for instance, the accuracy of the horizontal attitude by the horizontal accelerometer and the accuracy of the vertical attitude by the East-axis gyro. Therefore, uncertain errors in the inertial sensors degrade the performance of self-alignment. The focus of this paper is the temperature stabilizing error of accelerometers, a form of uncertain error. An analysis is presented of how the temperature stabilizing error affect the accuracy of self-alignment. From the analysis, a method is proposed to improve performance by curve fitting the horizontal control rates. This is then verified experimentally.

The Influence of Fairness Perceptions and Goal Commitment on Managers' Performance in a Budget Setting

2002 ◽  
Vol 14 (1) ◽  
pp. 247-271 ◽  
Author(s):  
Kristin Wentzel
Keyword(s):  
Structural Equation ◽  
Structural Equation Models ◽  
Goal Commitment ◽  
Questionnaire Data ◽  
Field Site ◽  
Improve Performance ◽  
Direct Path ◽  
Fairness Perceptions ◽  
Improved Performance ◽  
And Performance

Recent budgeting research suggests that fairness perceptions play a role in performance. In particular, prior work demonstrates a positive relation between fairness and performance during budgeting. The process by which fairness perceptions translate into improved performance, however, remains unaddressed. This study contributes to the accounting literature by investigating whether fairness perceptions improve performance via participation by increasing managers' commitment to budgetary goals. Structural equation models are proposed in which both fairness perceptions and goal commitment influence managers' performance during budgeting. Questionnaire data collected from one field site in the midst of downsizing were used to test the models. The results suggest that increased participation during budgeting fosters a sense of fairness, which, in turn, increases managers' commitment to budgetary goals and subsequently enhances performance ratings. The direct path between fairness perceptions and performance, however, appears to be insignificant when goal commitment is considered.

Complications of peripheral nerve stimulation for sacroiliac pain

2021 ◽  
pp. 161-166
Author(s):  
Meghan Cantlon Hughes ◽  
Alaa Abd-Elsayed
Keyword(s):  
Peripheral Nerve ◽  
Hospital Admission ◽  
Nerve Stimulation ◽  
Peripheral Nerve Stimulation ◽  
Background Information ◽  
Improve Performance ◽  
New Device ◽  
Improved Performance

This chapter will look at complications of peripheral nerve stimulation (PNS) by stratifying them into three distinct categories: hardware-related complications (lead migration or fracture, connection issues, and premature battery depletion), biologic complications (infection), and programming or therapy-related complications. Today, the complications related to current PNS procedures are rare and minor. Hospital admission is exceedingly unlikely. Every new device on the market is working not only to improve performance but also to mitigate risks such as lead migration and infection. Also included in this chapter is background information about how the procedure and the hardware have evolved over the years, leading to improved performance and fewer complications.

Dynamics of Attention in Depth: Evidence from Multi-Element Tracking

Perception ◽  
10.1068/p3432 ◽  
2002 ◽  
Vol 31 (12) ◽  
pp. 1415-1437 ◽  
Author(s):  
Lavanya Viswanathan ◽  
Ennio Mingolla
Keyword(s):  
Binocular Disparity ◽  
Spatial Separation ◽  
Three Dimensions ◽  
Moving Targets ◽  
Improve Performance ◽  
Frontoparallel Plane ◽  
Surface Information ◽  
Depth Cues ◽  
Planar Surfaces ◽  
Improved Performance

We examined the allocation of attention in depth using a multi-element tracking paradigm. Observers were required to track a predefined subset of from two to eight elements in displays containing up to sixteen identical moving elements. We first show that depth cues, such as binocular disparity and occlusion through T-junctions, improve performance in a multi-element tracking task in the case where element boundaries are allowed to intersect in the depiction of motion in a single frontoparallel plane. We also show that the allocation of attention across two perceptually distinguishable planar surfaces, either frontoparallel or receding at a slanting angle and defined by coplanar elements, is easier than allocation of attention within a single surface. The same result was not found when attention was required to be deployed across items of two-color populations rather than across items of a single color. Our results suggest that, when surface information does not suffice to distinguish between targets and distractors that are embedded in these surfaces, division of attention across two surfaces aids in tracking moving targets. A final experiment with populations of elements moving within distinct volumes produced similar results, suggesting that spatial separation in three dimensions, rather than confinement to surfaces as such, may explain the improved performance for the two-surface case.

scholarly journals He Dies, He Scores: Evidence That Reminders of Death Motivate Improved Performance in Basketball

2016 ◽  
Vol 38 (5) ◽  
pp. 470-480 ◽  
Author(s):  
Colin A. Zestcott ◽  
Uri Lifshin ◽  
Peter Helm ◽  
Jeff Greenberg
Keyword(s):  
Athletic Performance ◽  
Terror Management Theory ◽  
Terror Management ◽  
Self Esteem ◽  
Management Theory ◽  
Improve Performance ◽  
Basketball Game ◽  
The World ◽  
Improved Performance ◽  
Basketball Shooting

This research applied insights from terror management theory (TMT; Greenberg, Pyszczynski, & Solomon, 1986) to the world of sport. According to TMT, self-esteem buffers against the potential for death anxiety. Because sport allows people to attain self-esteem, reminders of death may improve performance in sport. In Study 1, a mortality salience induction led to improved performance in a “one-on-one” basketball game. In Study 2, a subtle death prime led to higher scores on a basketball shooting task, which was associated with increased task-related self-esteem. These results may promote our understanding of sport and provide a novel potential way to improve athletic performance.

scholarly journals Footwear Affects Conventional and Sumo Deadlift Performance

Sports ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 27
Author(s):  
Kevin A. Valenzuela ◽  
Kellie A. Walters ◽  
Elizabeth L. Avila ◽  
Alexis S. Camacho ◽  
Fany Alvarado ◽  
...  
Keyword(s):  
Vertical Velocity ◽  
Ground Reaction Force ◽  
Reaction Force ◽  
Work Load ◽  
Vertical Displacement ◽  
Improve Performance ◽  
Vertical Ground Reaction Force ◽  
Training Modality ◽  
Vertical Ground ◽  
Improved Performance

Barefoot weightlifting has become a popular training modality in recent years due to anecdotal suggestions of improved performance. However, research to support these anecdotal claims is limited. Therefore, the purpose of this study was to assess the differences between the conventional deadlift (CD) and the sumo deadlift (SD) in barefoot and shod conditions. On day one, one-repetition maximums (1 RM) were assessed for thirty subjects in both the CD and SD styles. At least 72 h later, subjects returned to perform five repetitions in four different conditions (barefoot and shod for both CD and SD) at 70% 1 RM. A 2 × 2 (footwear × lifting style) MANOVA was used to assess differences between peak vertical ground reaction force (VGRF), total mechanical work (WORK), barbell vertical displacement (DISP), peak vertical velocity (PV) and lift time (TIME) during the concentric phase. The CD displayed significant increases in VGRF, DISP, WORK, and TIME over the SD. The shod condition displayed increased WORK, DISP, and TIME compared to the barefoot condition. This study suggests that lifting barefoot does not improve performance as no differences in VGRF or PV were evident. The presence of a shoe does appear to increase the DISP and WORK required to complete the lift, suggesting an increased work load is present while wearing shoes.

Mnemonic Training in Older Adults: Effects of Age, Length of Training, and Type of Cognitive Pretraining

1999 ◽  
Vol 11 (1) ◽  
pp. 75-84 ◽  
Author(s):  
John O. Brooks ◽  
Leah Friedman ◽  
Ann M. Pearman ◽  
Christine Gray ◽  
Jerome A. Yesavage
Keyword(s):  
Proper Names ◽  
Community Dwelling ◽  
Word Recall ◽  
Improve Performance ◽  
Training Time ◽  
Method Of Loci ◽  
Before And After ◽  
Proper Name ◽  
Improved Performance ◽  
Mnemonic Techniques

Objectives: To improve performance with mnemonic techniques for remembering words and proper names. Design: For word recall, a 2 × 2 factorial in which type of pretraining and length of training were between-subjects manipulations. For proper name recall, a two-group design in which type of pretraining was manipulated between subjects. Setting: Community. Participants: 268 community-dwelling adults over the age of 55 years who wished to improve their memory. Measurements: Recall of words and proper names both before and after training in mnemonics. Intervention: Participants received a 2-week training course on two mnemonic techniques, the method of loci for words and a name association technique for proper names. Results: There was no effect of the pretraining manipulation on proper name recall. For word recall, however, a multiple regression that included age indicated that the older-old participants benefited more from a combination of comprehensive pretraining and extended mnemonic training than did the younger-old. Conclusions: Increased training time coupled with a comprehensive pretraining regimen can improve the performance of the older-old in using mnemonics; this improved performance cannot be attributed solely to enhanced knowledge of the mnemonic.

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