scholarly journals Design and implement a new secure prototype structure of e-commerce system

2022 ◽  
Vol 12 (1) ◽  
pp. 560
Author(s):  
Farah Tawfiq Abdul Hussien ◽  
Abdul Monem S. Rahma ◽  
Hala Bahjat Abdul Wahab
Keyword(s):  
System Performance ◽  
System Development ◽  
Electronic Marketplace ◽  
Huge Number ◽  
Internet Technologies ◽  
Prototype Structure ◽  
And Performance ◽  
Client Device ◽  
Prototype Design

<p><br />The huge development of internet technologies and the widespread of modern and advanced devices lead to an increase in the size and diversity of e-commerce system development. These developments lead to an increase in the number of people that navigate these sites asking for their services and products. Which leads to increased competition in this field. Moreover, the expansion in the size of currency traded makes transaction protection an essential issue in this field. Providing security for each online client especially for a huge number of clients at the same time, causing an overload on the system server. This problem may lead to server deadlock, especially at rush time, which reduce system performance. To solve security and performance problems, this research suggests a prototype design for agent software. This agent will play the role of broker between the clients and the electronic marketplace. This is done by providing security inside the client device and converting the client’s order into a special form which is called a record form to be sent to the commercial website. Experimental results showed that this method increase system performance in terms of page loading time, transaction processing and improves the utilization of system resources.</p>

Nonfunctional and Domain Requirements

2003 ◽  
pp. 415-430
Author(s):  
Len Asprey ◽  
Michael Middleton
Keyword(s):  
Information Technology ◽  
System Performance ◽  
System Development ◽  
Mass Storage ◽  
Development Environment ◽  
System Administration ◽  
Performance Requirements ◽  
Operating Environments ◽  
Requirements Determination ◽  
And Performance

In this chapter, we will examine requirements determination and analysis that may be useful for defining the nonfunctional and domain requirements for an IDCM solution, including system sizing, architecture, and performance requirements. We also include a discussion on domain requirements, such as those for information technology and system administration. Our objectives are to do the following: • Document the requirements for system sizing and mass storage. • Consider the types of requirements analysis that enterprises apply to help suppliers of IDCM solutions offer an architecture solution that may meet enterprise requirements. • Define system performance requirements with known caveats and assumptions. • Define the requirements for the IDCM system to integrate with enterprise desktop, server, and network operating environments. • Define the requirements for the system development environment. • Document the system administration requirements for the system.

Trace nanoanalysis

1994 ◽  
Vol 52 ◽  
pp. 940-941
Author(s):  
D. E. Newbury ◽  
R. D. Leapman
Keyword(s):  
High Performance ◽  
Secondary Ion Mass Spectrometry ◽  
Detection Efficiency ◽  
Volume Element ◽  
And Performance ◽  
Trace Constituents ◽  
Secondary Ion ◽  
Concentration Levels ◽  
Structure Properties

Trace constituents, which can be very loosely defined as those present at concentration levels below 1 percent, often exert influence on structure, properties, and performance far greater than what might be estimated from their proportion alone. Defining the role of trace constituents in the microstructure, or indeed even determining their location, makes great demands on the available array of microanalytical tools. These demands become increasingly more challenging as the dimensions of the volume element to be probed become smaller. For example, a cubic volume element of silicon with an edge dimension of 1 micrometer contains approximately 5×1010 atoms. High performance secondary ion mass spectrometry (SIMS) can be used to measure trace constituents to levels of hundreds of parts per billion from such a volume element (e. g., detection of at least 100 atoms to give 10% reproducibility with an overall detection efficiency of 1%, considering ionization, transmission, and counting).

The Relation Between Financial Incentives, Motivation, and Performance

2017 ◽  
Vol 16 (2) ◽  
pp. 61-76 ◽  
Author(s):  
Anaïs Thibault Landry ◽  
Marylène Gagné ◽  
Jacques Forest ◽  
Sylvie Guerrero ◽  
Michel Séguin ◽  
...  
Keyword(s):  
Financial Incentives ◽  
Work Performance ◽  
Autonomous Motivation ◽  
Compensation Plans ◽  
Work Settings ◽  
Path Analyses ◽  
Three Samples ◽  
And Performance ◽  
Performance Results

Abstract. To this day, researchers are debating the adequacy of using financial incentives to bolster performance in work settings. Our goal was to contribute to current understanding by considering the moderating role of distributive justice in the relation between financial incentives, motivation, and performance. Based on self-determination theory, we hypothesized that when bonuses are fairly distributed, using financial incentives makes employees feel more competent and autonomous, which in turn fosters greater autonomous motivation and lower controlled motivation, and better work performance. Results from path analyses in three samples supported our hypotheses, suggesting that the effect of financial incentives is contextual, and that compensation plans using financial incentives and bonuses can be effective when properly managed.

The role of copper ions in hydrogen peroxide bleaching: Their origin, removal, and effect on pulp quality

TAPPI Journal ◽  
2012 ◽  
Vol 11 (7) ◽  
pp. 37-46 ◽  
Author(s):  
PEDRO E.G. LOUREIRO ◽  
SANDRINE DUARTE ◽  
DMITRY V. EVTUGUIN ◽  
M. GRAÇA V.S. CARVALHO
Keyword(s):  
Hydrogen Peroxide ◽  
Copper Ions ◽  
Peroxide Bleaching ◽  
Metals Removal ◽  
Peroxide Decomposition ◽  
Equipment Corrosion ◽  
And Performance ◽  
And Control ◽  
Main Effects

This study puts particular emphasis on the role of copper ions in the performance of hydrogen peroxide bleaching (P-stage). Owing to their variable levels across the bleaching line due to washing filtrates, bleaching reagents, and equipment corrosion, these ions can play a major role in hydrogen peroxide decomposition and be detrimental to polysaccharide integrity. In this study, a Cu-contaminated D0(EOP)D1 prebleached pulp was subjected to an acidic washing (A-stage) or chelation (Q-stage) before the alkaline P-stage. The objective was to understand the isolated and combined role of copper ions in peroxide bleaching performance. By applying an experimental design, it was possible to identify the main effects of the pretreatment variables on the extent of metals removal and performance of the P-stage. The acid treatment was unsuccessful in terms of complete copper removal, magnesium preservation, and control of hydrogen peroxide consumption in the following P-stage. Increasing reaction temperature and time of the acidic A-stage improved the brightness stability of the D0(EOP)D1AP bleached pulp. The optimum conditions for chelation pretreatment to maximize the brightness gains obtained in the subsequent P-stage with the lowest peroxide consumption were 0.4% diethylenetriaminepentaacetic acid (DTPA), 80ºC, and 4.5 pH.

The Role of Research and Innovation in the Transformation of Agri-Food Systems

2018 ◽  
Vol 12 (2) ◽  
pp. 60-63
Author(s):  
Mariana Sandu ◽  
Stefan Mantea
Keyword(s):  
Technological Progress ◽  
Food Systems ◽  
Food System ◽  
Agricultural Research ◽  
Research And Innovation ◽  
And Performance ◽  
The Impact ◽  
Determinant Factor ◽  
Rapid Transformation

Abstract Agri-food systems include branching ramifications, which connect in the upstream the input suppliers with farmers, and downstream farmers, processors, retailers and consumers. In the last decades, at the level of the regions, food systems have undergone rapid transformation as a result of technological progress. The paper analyzes the changes made to the structure, behavior and performance of the agri-food system and the impact on farmers and consumers. Also, the role of agricultural research as a determinant factor of transformation of agri-food system is analyzed. The research objective is to develop technologies that cover the entire food chain (from farm to fork) and meet the specific requirements of consumers (from fork to farm) through scientific solutions in line with the principles of sustainable agriculture and ensuring the safety and food safety of the population.

Supervisi pendidikan

2020 ◽  
Author(s):  
nurul atika
Keyword(s):  
Public Relations ◽  
Educational Administration ◽  
Educational Goals ◽  
Literature Study ◽  
School Officials ◽  
Sourcing Strategies ◽  
Educational Supervision ◽  
Education Personnel ◽  
And Performance

Abstrak- In general, this study aims to determine and analyze the role of supervision in an education. This research uses the literature study method by collecting literature (material materials) sourced from books, journals, and other sources related to the science of Educational Administration. Supervision comes from the word super and vision, which means to see and review from above or view and assess from above, which is carried out by superiors on the activities, creativity and performance of subordinates. In terms of terms, in Carter's Good Dictionary Education, supervision is all the efforts of school officials in leading teachers and other education personnel to improve teaching. These include stimulating, selecting the growth and development of teachers' positions, selecting and revising educational goals, teaching materials and teaching methods, and evaluating teaching. Educational supervision has very important goals and benefits. The scope of educational supervision includes the following: Managerial supervision of the curriculum, Managerial supervision of student affairs, Managerial supervision of educators and education personnel, Managerial supervision of facilities and infrastructure, Managerial supervision of finance, Managerial supervision of public relations, Managerial supervision of administration, Administration supervision academics about learning, related to methods, sourcing strategies, and evaluations.

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