Results 21 to 30 of about 1,511,705 (293)

Combined Effects of Irrigation and Fertilization on Growth and Fertilizer Utilization of Winter Wheat

open access: yesGuan'gai paishui xuebao, 2023
【Objective】 Water and nutrients are interactive in their uptakes by crops. The purpose of this paper is to investigate how fertilization and irrigation combine to modulate winter wheat yield and fertilizer utilization.
CHEN Haiqing   +7 more
doaj   +1 more source

Flexible PCL tube scaffolds by winding of micro-extruded filaments [PDF]

open access: yes, 2011
An important requirement for tissue engineering scaffolds is matching of the functional me-chanical properties to their natural tissue counterpart. Specifically for arteries this comprises the elastic re-sponse of the vessel wall to blood pressure. Human
Cardon, Ludwig   +2 more
core   +1 more source

Drip fertilization improve water and nitrogen use efficiency by optimizing root and shoot traits of winter wheat

open access: yesFrontiers in Plant Science, 2023
Proper irrigation and fertilization measures can not only improve water and fertilizer utilization efficiency, but also have important significance in ensuring agricultural environment security and sustainable development.
Shoutian Ma   +4 more
doaj   +1 more source

Requirements Engineering [PDF]

open access: yes, 2019
Requirements Engineering (RE) aims to ensure that systems meet the needs of their stakeholders including users, sponsors, and customers. Often consid- ered as one of the earliest activities in software engineering, it has developed into a set of activities that touch almost every step of the software development process.
Bennaceur, Amel   +3 more
openaire   +1 more source

A Methodological Approach to Evaluate Security Requirements Engineering Methodologies: Application to the IREHDO2 Project Context

open access: yesJournal of Cybersecurity and Privacy, 2021
An effective network security requirement engineering is needed to help organizations in capturing cost-effective security solutions that protect networks against malicious attacks while meeting the business requirements.
Romain Laborde   +4 more
doaj   +1 more source

An Evaluation of Quantitative Non-Functional Requirements Assurance Using ArchiMate

open access: yesIEEE Access, 2020
Goal-oriented NFR (Non-Functional Requirement) assurance approaches were used to qualitatively evaluate software architectures. Assurance cases using quantitative method have not been applied to evaluate NFR assurance for software architectures.
Zhengshu Zhou   +3 more
doaj   +1 more source

On the Viability of Diagrams and Drawings as System Requirements

open access: yesSystems, 2023
Requirement expression media is an overlooked consideration in requirements innovation. The path to including media other than natural language requirement sentences begins with determining the viability of media to be used as requirement expressions in ...
Jason Kolligs, Lawrence Dale Thomas
doaj   +1 more source

Prioritization of non-functional requirements in a mobile application for panic button system using neutrosophic decision maps [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
Several countries around the world have implemented systems to preserve public safety. Taking advantage of technological advances that are available to all citizens, in Ecuador it has been implemented a system called panic button, which consists of a ...
Marco Antonio Checa Cabrera   +3 more
doaj   +1 more source

A requirement engineering model for big data software [PDF]

open access: yes, 2017
Most prevailing software engineering methodologies assume that software systems are developed from scratch to capture business data and subsequently generate reports. Nowadays, massive data may exist even before software systems are developed. These data
Abd Ghani, Abdul Azim   +4 more
core   +1 more source

Causes and Mitigation Practices of Requirement Volatility in Agile Software Development

open access: yesInformatics
One of the main obstacles in software development projects is requirement volatility (RV), which is defined as uncertainty or changes in software requirements during the development process.
Abdulghafour Mohammad   +1 more
doaj   +1 more source

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