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Related Concept Videos

Accelerators01:17

Accelerators

292
Accelerators in concrete serve as admixtures to speed up the hardening process, enabling the concrete to achieve early strength faster. Although accelerators do not necessarily impact the time it takes concrete to set, they reduce this time in practice. A common accelerator is calcium chloride, which is particularly useful for hastening early strength development in cold weather or for rapid repair jobs that require quick heat generation after mixing.
The effectiveness of calcium chloride can...
292
Average Acceleration01:30

Average Acceleration

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The importance of understanding acceleration spans our day-to-day experiences, as well as the vast reaches of outer space and the tiny world of subatomic physics. In everyday conversation, to accelerate means to speed up. For instance, we are familiar with the acceleration of our car; the harder we apply our foot to the gas pedal, the faster we accelerate. The greater the acceleration, the greater the change in velocity over a given time. Acceleration is widely seen in experimental physics. In...
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Instantaneous Acceleration01:16

Instantaneous Acceleration

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Acceleration is in the direction of the change in velocity, but it is not always in the direction of motion. When an object slows down, its acceleration is opposite to the direction of its motion. Although commonly referred to as deceleration, this causes confusion in our analysis as deceleration is not a vector, and does not point to a specific direction with respect to a coordinate system. Therefore, the term deceleration is not used. For example, when a subway train slows down, it...
23.3K
Acceleration Vectors01:30

Acceleration Vectors

23.2K
In everyday conversation, accelerating means speeding up. Acceleration is a vector in the same direction as the change in velocity, Δv, therefore the greater the acceleration, the greater the change in velocity over a given time. Since velocity is a vector, it can change in magnitude, direction, or both. Thus acceleration is a change in speed or direction, or both. For example, if a runner traveling at 10 km/h due east slows to a stop, reverses direction, and continues their run at 10 km/h...
23.2K
Accelerating Fluids01:17

Accelerating Fluids

2.3K
When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
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What is an Experiment?01:12

What is an Experiment?

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An experiment is a planned activity carried out under controlled conditions. The purpose of an experiment is to investigate the relationship between two variables. When one variable causes change in another, we call the first variable the explanatory or independent variable. The affected variable is called the response or dependent variable. In a randomized experiment, the researcher manipulates values of the explanatory variable and measures the resulting changes in the response variable. The...
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Experiences with Deriva: An Asset Management Platform for Accelerating eScience.

Alejandro Bugacov1, Karl Czajkowski1, Carl Kesselman1

  • 1Information Sciences Institute, Viterbi School of Engineering, University of Southern California, Marina del Rey, CA 90292.

Proceedings ... IEEE International Conference on Escience. IEEE International Conference on Escience
|May 15, 2018
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Summary
This summary is machine-generated.

Scientists can accelerate eScience discovery by using Deriva, a Scientific Asset Management System. This system streamlines data management, allowing researchers to focus more on scientific breakthroughs rather than ad hoc data procedures.

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Area of Science:

  • eScience
  • Data Science
  • Scientific Computing

Background:

  • Scientific discovery increasingly relies on managing large, diverse datasets.
  • Researchers often spend excessive time on manual data management procedures.
  • Ad hoc data handling hinders efficient scientific progress.

Purpose of the Study:

  • To evaluate the application and impact of the Deriva Scientific Asset Management System.
  • To understand the practical challenges and successes of integrating scientific asset management into research workflows.
  • To gather lessons learned from diverse eScience applications.

Main Methods:

  • Deployment of the Deriva system in multiple substantial eScience projects.
  • Analysis of user experiences and workflow integration.
  • Documentation of technical performance and usability.

Main Results:

  • Deriva demonstrated effectiveness in accelerating data-driven discovery across various eScience domains.
  • Successful integration of Deriva into daily scientific workflows was observed.
  • Key lessons were identified regarding technology adoption and user engagement.

Conclusions:

  • Scientific Asset Management systems like Deriva are crucial for modern eScience.
  • The adoption of robust data management tools can significantly reduce researcher overhead.
  • Further development and user support are essential for widespread adoption.