scholarly journals A new strategy for linking U.S. historical censuses: A case study for the IPUMS multigenerational longitudinal panel

Author(s):  
Jonas Helgertz ◽  
Joseph Price ◽  
Jacob Wellington ◽  
Kelly J Thompson ◽  
Steven Ruggles ◽  
...  
Keyword(s):  
Author(s):  
Richen Liu ◽  
Hailong Wang ◽  
Chuyu Zhang ◽  
Xiaojian Chen ◽  
Lijun Wang ◽  
...  

Abstract Motivation Narrative visualization for scientific data explorations can help users better understand the domain knowledge, because narrative visualizations often present a sequence of facts and observations linked together by a unifying theme or argument. Narrative visualization in immersive environments can provide users with an intuitive experience to interactively explore the scientific data, because immersive environments provide a brand new strategy for interactive scientific data visualization and exploration. However, it is challenging to develop narrative scientific visualization in immersive environments. In this paper, we propose an immersive narrative visualization tool to create and customize scientific data explorations for ordinary users with little knowledge about programming on scientific visualization, They are allowed to define POIs (point of interests) conveniently by the handler of an immersive device. Results Automatic exploration animations with narrative annotations can be generated by the gradual transitions between consecutive POI pairs. Besides, interactive slicing can be also controlled by device handler. Evaluations including user study and case study are designed and conducted to show the usability and effectiveness of the proposed tool. Availability Related information can be accessed at: https://dabigtou.github.io/richenliu/


2018 ◽  
Vol 3 ◽  
pp. 1-32
Author(s):  
Muhammad Abdul Mannan

Linking Islamic Commercial and Social Finance with Special Reference to Cash-Waqf as New Strategy of Interest-Free Micro-Credit for Family Empowerment of the Poor Towards Establishing World Social Bank: A Case Study Approach


2015 ◽  
Vol 760 ◽  
pp. 671-676
Author(s):  
Traian Mazilu ◽  
Aurel Tarara

This case study describes the transition and the evolution from mass production to mass customization in the case of highly complex engineering products, LED lighting systems, and how can some of the principles of this mass customization`s business strategy may be applied. It is analyzed the capabilities of the existing production systems within a company producing lighting systems, as well as the flexibility and ability to adapt in order to introduce new customized products. The study aims to analyze the strategic principles formed around the company’s core capabilities, the competitive advantages offered by introducing this new strategy as well as its limitations. In the end we will give an overview on the development of mass customization of LED lighting system.


2021 ◽  
pp. 1-11
Author(s):  
A. Alzahabi ◽  
A. Alexandre Trindade ◽  
A. A. Kamel ◽  
A. Harouaka ◽  
W. Baustian ◽  
...  

Summary One of the enduring pieces of the jigsaw puzzle for all unconventional plays is drawdown (DD), a technique for attaining optimal return on investment. Assessment of the DD from producing wells in unconventional resources poses unique challenges to operators; among them the fact that many operators are reluctant to reveal the production, pressure, and completion data required. In addition to multiple factors, various completion and spacing parameters add to the complexity of the problem. This work aims to determine the optimum DD strategy. Several DD trials were implemented within the Anadarko Basin in combination with various completion strategies. Privately obtained production and completion data were analyzed and combined with well log analysis in conjunction with data analytics tools. A case study is presented that explores a new strategy for DD producing wells within the Anadarko Basin to optimize a return on investment. We use scatter-plot smoothing to develop a predictive relationship between DD and two dependent variables—estimated ultimate recovery (EUR) and initial production (IP) for 180 days of oil—and introduce a model that evaluates horizontal well production variables based on DD. Key data were estimated using reservoir and production variables. The data analytics suggested the optimal DD value of 53 psi/D for different reservoirs within the Anadarko Basin. This result may give professionals additional insight into more fully understanding the Anadarko Basin. Through these optimal ranges, we hope to gain a more complete understanding of the best way to DD wells when they are drilled simultaneously. Our discoveries and workflow within the Woodford and Mayes Formations may be applied to various plays and formations across the unconventional play spectrum. Optimal DD techniques in unconventional reservoirs could add billions of dollars in revenue to a company’s portfolio and dramatically increase the rate of return, as well as offer a new understanding of the respective producing reservoirs.


2015 ◽  
Vol 4 (2) ◽  
pp. 123
Author(s):  
Jabbar Alizadeh Asl ◽  
Asghar Zarrabi ◽  
Masoud Taghvaei ◽  
Jamal Mohamadi

<p class="emsd">Electronic cities result from the implication of information and communication technology (ICT) in the contemporary era. Significant ICT development and internet network expansion as well as the need of urban management to new ideas in managing cities lead us toward a new strategy called "electronic cities". The current study aims at investigating the strategic planning of Iranian electronic cities, case study of the metropolitan uremia, Iran. Research method is documentary and survey. Research<strong> </strong>Statistical population consists of all experts located in Uremia, selected through Morgan Table. To collect data, Likert spectrum is employed. Findings indicate that the most important challenges in the way of establishing an electronic city include the lack of strategic document for urban development, high number of decision-making centers and administrative extra parallel works among them, the inclination of the urban managers toward traditional methods, low-speed, high-cost internet connection, the lack of infrastructures for ICT, the lack of digital literacy among citizens and so on. According to the findings, some strategies have been recommended, which they need the serious care of urban managers and planners in the metropolitan Uremia. </p>


2015 ◽  
Vol 17 (45) ◽  
pp. 30292-30299 ◽  
Author(s):  
Jang Ho Joo ◽  
Jae-Seung Lee

A new strategy for reversibly assembling spherical nucleic acids (SNAs) is demonstrated based on the coordinative binding of divalent metal ions, particularly Cu2+, to nucleobases.


Sign in / Sign up

Export Citation Format

Share Document