scholarly journals Cross-Platform Analysis and Development of Online Catering Platform (Kunyahku)

2021 ◽  
Vol 7 (2) ◽  
pp. 79-89
Author(s):  
Indra Swarna ◽  
James Purnama ◽  
Randy Anthony
Keyword(s):  
Coming Out ◽  
Development Time ◽  
Development Cycle ◽  
Start Up ◽  
Code Base ◽  
Cross Platform ◽  
Multiple Platform ◽  
Suitable Framework ◽  
Faster Development ◽  
The Cost

Kunyahku is an online catering platform that provides catalogs of menus from local caterer near the user and become the distributor that will take the order and deliver them. In developing an application, the most important aspect for small start-up companies is to have a development stack that can deliver the app into multiple platform by using a single code base to reduce the cost of developers, improve efficiency and reduce the time to develop the application itself. To provide the necessity of building an application for Kunyahku, this paper is aimed to find the most suitable cross platform framework for developing the Kunyahku application. This research focuses on comparison between existing popular cross-platform and proving the suitable one to be used in development cycle in the case of Kunyahku requirements. Sets of test and comparison were conducted in order to compare the most suitable cross platform between React Native and Flutter such as render test and comparing each advantage coming out from using each of the cross-platform.After all the requirements are gathered and then the most suitable framework will be chosen which is Flutter. Performance analysis and the benefits of using Flutter framework are elaborated and thus proving it is the most suitable development stack to be used in Kunyahku case and the development time can be reduced since it is a cross-platform technology that output the application into three different platform rather than managing separate platform for each different one. Testing shows that flutter also met all the requirements thus proving flutter address the problems of scalability and faster development compared to developing each native platform one by one.

scholarly journals The expression of additive and nonadditive genetic variation under stress.

Genetics ◽  
1995 ◽  
Vol 140 (3) ◽  
pp. 1149-1159
Author(s):  
M W Blows ◽  
M B Sokolowski
Keyword(s):  
Genetic Variation ◽  
Development Time ◽  
Genetic Effects ◽  
Hybrid Breakdown ◽  
Bristle Number ◽  
Gene Complexes ◽  
General Expectation ◽  
Faster Development ◽  
Seven Generations ◽  
Additive Genetic Effects

Abstract Experimental lines of Drosophila melanogaster derived from a natural population, which had been isolated in the laboratory for approximately 70 generations, were crossed to determine if the expression of additive, dominance and epistatic genetic variation in development time and viability was associated with the environment. No association was found between the level of additive genetic effects and environmental value for either trait, but nonadditive genetic effects increased at both extremes of the environmental range for development time. The expression of high levels of dominance and epistatic genetic variation at environmental extremes may be a general expectation for some traits. The disruption of the epistatic gene complexes in the parental lines resulted in hybrid breakdown toward faster development and there was some indication of hybrid breakdown toward higher viability. A combination of genetic drift and natural selection had therefore resulted in different epistatic gene complexes being selected after approximately 70 generations from a common genetic base. After crossing, the hybrid populations were observed for 10 generations. Epistasis contributed on average 12 hr in development time. Fluctuating asymmetry in sternopleural bristle number also evolved in the hybrid populations, decreasing by > 18% in the first seven generations after hybridization.

The Design and Implementation of Code Generation Based on J2EE in the Development of JBPM Workflow System

2012 ◽  
Vol 263-266 ◽  
pp. 1961-1968
Author(s):  
Yong Chao Song ◽  
Bu Dan Wu ◽  
Jun Liang Chen
Keyword(s):  
Software Development ◽  
Code Generation ◽  
System Development ◽  
Source Code ◽  
Design And Implementation ◽  
Workflow System ◽  
Development Cycle ◽  
The Cost ◽  
Static Form

According to the feature of the JBPM workflow system development, the target code generated is determined by analyzing the process of JBPM workflow development and the architecture of J2EE. The code generation tool generates code by parsing the static form source code and loading the code generation template. The code generation tool greatly shortens the JBPM workflow system development cycle and reduces the cost of software development which has the good practicality and scalability.

scholarly journals Business ideas in start-ups

2020 ◽  
Vol 83 ◽  
pp. 01063
Author(s):  
Štefan Slávik
Keyword(s):  
Information And Communication Technologies ◽  
New Technologies ◽  
Legal Protection ◽  
Communication Technologies ◽  
Point Of View ◽  
The Internet ◽  
Development Cycle ◽  
Start Up ◽  
Information And Communication ◽  
Start Ups

Start-up is a modern entrepreneurship form designed to realize original business ideas, mostly based on new technologies and the Internet. It evolves in the development cycle, which is determined by the business idea development cycle and the financing cycle. The purpose of the paper is to describe and analyse the business idea. The business idea is characterized by its content, circumstances of its origin, degree of originality and evidence of this originality. Start-ups are dominated by business ideas based on the application of information and communication technologies, the business idea is most often created by combining professional and business experience, but its originality is from the international point of view only average and the level of legal protection is quite rare.

Analysis on Strength of the Frame of a Mine Dump Truck

2014 ◽  
Vol 590 ◽  
pp. 130-134 ◽  
Author(s):  
Jun Feng Zhang ◽  
Lin Deng
Keyword(s):  
Initial Problem ◽  
Frame Structure ◽  
Dump Truck ◽  
Development Cycle ◽  
New Models ◽  
The Cost ◽  
Mine Dump

This paper, taking a mine dump truck as the research object, analyzes CAE by the principle of the finite element’s inertia and finds out the initial problem of the design, thus optimizing the frame structure reasonably. Thereby it can reduce the cost of the production’s design and shorten development cycle of new models.

Understanding the Barriers to Offshore Green-Hydrogen Production

2021 ◽  
Vol 73 (10) ◽  
pp. 31-34
Author(s):  
Trent Jacobs
Keyword(s):  
Hydrogen Production ◽  
Oil And Gas ◽  
Single Atom ◽  
Carbon Footprints ◽  
Start Up ◽  
Technology Group ◽  
Abundant Supply ◽  
The Cost ◽  
Oil And Gas Companies ◽  
Green Label

The stage is set to begin making “green” hydrogen from the world’s abundant supply of seawater. But whether this niche-within-a-niche can stand on its own and become a competitive energy source remains uncertain. Today, only about 1% of man-made hydrogen is considered to be green, and not a single atom of it is produced offshore. In the offshore concept, the green label will be earned by splitting the hydrogen out of desalinated seawater with electrolyzers that run on renewable wind energy. This represents an opportunity for oil and gas companies to not just lower their carbon footprints, but to leverage billions of dollars’ worth of existing offshore infrastructure. Their platforms can host the electrolyzers. Their pipelines can transfer the product to shore. They may even be able to power their offshore facilities using the hydrogen produced at sea. Offshore producers should also have no problem finding a market. PriceWaterhouseCoopers said in a report from last year that green-hydrogen exports could be worth $300 billion annually by 2050, supporting some 400,000 jobs globally. However, the first set of offshore pilots are still in planning mode. It will take a few more years to assess the results once they start up. That means we may not know if offshore hydrogen is commercially viable until decade’s end. Some of the biggest barriers that must be overcome were highlighted by a panel of leading hydrogen experts at the recent Offshore Technology Conference (OTC) in Houston. Green Hydrogen in the Red “The major hurdle is still the cost,” explained René Peters. “The cost of hydrogen production with electrolysis is still extremely high compared to gray- and blue-hydrogen production.” Peters is the business director at the Dutch technology group TNO which is one of a dozen partners trying to launch PosHYdon, the pilot for offshore hydrogen production. Startup is expected by early 2023 on a normally unmanned oil and gas platform operated by independent oil and gas company Neptune Energy. Peters’ comments on cost were not relegated to the offshore aspect since all green hydrogen is made onshore today. In terms of tipping point for profitability, these are the relevant benchmarks.

Multi-Device RIAs Development

2014 ◽  
pp. 249-268
Keyword(s):  
Comparative Analysis ◽  
Web 2.0 ◽  
Mobile Devices ◽  
Web Applications ◽  
Tablet Computers ◽  
Rich Internet Application ◽  
Device Development ◽  
Code Base ◽  
Cross Platform ◽  
Internet Application

Web 2.0 applications are becoming ubiquitous applications (i.e., applications that can be accessed by anyone, anywhere, anytime, using any device). A key element of these ubiquitous applications is mobile devices. In fact, the involvement of mobile devices such as smartphones and tablet computers in the development of Web 2.0 applications has resulted in a new kind of Rich Internet Application (RIA) that can run on a variety of devices starting from the same code base, and it is known as multi-device RIA. The term multi-device RIA embraces not only mobile applications but also other kinds of out-of-browser applications such as cross-platform desktop applications as well as the traditional cross-browser Web applications. This chapter formalizes the concept of multi-device RIA, and then it presents an overview of the capabilities of several multi-device development frameworks. This review is finally summarized in a comparative analysis.

scholarly journals HEPCon – A Cross-Platform Mobile Application for HEP Events

2019 ◽  
Vol 214 ◽  
pp. 05034
Author(s):  
Martin Vassilev ◽  
Vassil Vassilev ◽  
Alexander Penev ◽  
Petya Vassileva
Keyword(s):  
Mobile Application ◽  
High Energy Physics ◽  
High Energy ◽  
Mobile App ◽  
Android Apps ◽  
Code Base ◽  
Cross Platform ◽  
Sqlite Database ◽  
Energy Physics ◽  
Community Standard

Collaboration in research is essential for saving time and money. The field of high-energy physics (HEP) is no different. The higher level of collaboration the stronger the community. The HEP field encourages organizing various events in format and size such as meetings, workshops and conferences. Making attending a HEP event easier leverages cooperation and dialogue and this is what makes Indico service defacto a community standard. The paper describes HEPCon, a cross-platform mobile application which collects all information available on Indico and makes it available on a portable device. It keeps most of the data locally which speeds up the interaction. HEP-Con uses a shared code base which allows easy multiplatform development and support. There are iOS and Android implementations available for free download. The project is based on C# and we use the Xamarin mobile app technology for building native iOS and Android apps. SQLite database is responsible for retrieving and storing conference data. The app can be used to preview data from past CHEP conferences but the tool is implemented generic enough to support other Indico events.

scholarly journals Evolution of reduced pre-adult viability and larval growth rate in laboratory populations of Drosophila melanogaster selected for shorter development time

2000 ◽  
Vol 76 (3) ◽  
pp. 249-259 ◽  
Author(s):  
N. G. PRASAD ◽  
MALLIKARJUN SHAKARAD ◽  
VISHAL M. GOHIL ◽  
V. SHEEBA ◽  
M. RAJAMANI ◽  
...  
Keyword(s):  
Growth Rate ◽  
Drosophila Melanogaster ◽  
Development Time ◽  
Larval Growth ◽  
Dry Weight ◽  
Relative Reduction ◽  
Larval Growth Rate ◽  
Laboratory Populations ◽  
The Difference ◽  
Faster Development

Four large (n > 1000) populations of Drosophila melanogaster, derived from control populations maintained on a 3 week discrete generation cycle, were subjected to selection for fast development and early reproduction. Egg to eclosion survivorship and development time and dry weight at eclosion were monitored every 10 generations. Over 70 generations of selection, development time in the selected populations decreased by approximately 36 h relative to controls, a 20% decline. The difference in male and female development time was also reduced in the selected populations. Flies from the selected populations were increasingly lighter at eclosion than controls, with the reduction in dry weight at eclosion over 70 generations of selection being approximately 45% in males and 39% in females. Larval growth rate (dry weight at eclosion/development time) was also reduced in the selected lines over 70 generations, relative to controls, by approximately 32% in males and 24% in females. However, part of this relative reduction was due to an increase in growth rate of the controls populations, presumably an expression of adaptation to conditions in our laboratory. After 50 generations of selection had elapsed, a considerable and increasing pre- adult viability cost to faster development became apparent, with viability in the selected populations being about 22% less than that of controls at generation 70 of selection.

Fast-Track Controls Retrofit for a Gas and Steam Turbine Propylene Compressor Drive

1993 ◽  
Author(s):  
James T. Morton ◽  
Joseph M. Drobniak
Keyword(s):  
Control System ◽  
Steam Turbine ◽  
System Reliability ◽  
Fast Track ◽  
Red Deer ◽  
First Year ◽  
System Specification ◽  
Field Instrumentation ◽  
Start Up ◽  
The Cost

This paper chronicles a control system retrofit for a 38,000 horsepower refrigeration compressor drive at Novacor’s Ethylene #1 Plant, Red Deer, Alberta, Canada (Fig. 1). The changes were designed to meet a 3-year continuous operation requirement. When the plant was constructed in the late 1970’s, annual turnarounds were considered normal operating procedure. The project replaced original electronic controls on a 23,500 horsepower G. E. Frame 5, Model R gas turbine and a 18,300 horsepower Elliott 2 NV starter/helper steam turbine. Both turbines are connected at opposite ends of a single compressor drive shaft (Fig. 2). Because of the cost associated with any control system malfunction, a programmable triple modular redundant controller was selected as the replacement. Among the modifications performed to enhance system reliability were wiring dual exhaust thermocouples directly into the system and triplicating critical field devices. Another important aspect of this upgrade was replacing deteriorating underground field instrumentation wiring with cabling in overhead cable trays. The original wiring was over stressed by “frost heaving,” causing several unplanned shutdowns. In April of 1991, the project team initiated a schedule to meet an early August delivery. System specification, checkout, and start-up, as well as its first year of performance are discussed.

scholarly journals RHEEMix in the data jungle: a cost-based optimizer for cross-platform systems

2020 ◽  
Vol 29 (6) ◽  
pp. 1287-1310
Author(s):  
Sebastian Kruse ◽  
Zoi Kaoudi ◽  
Bertty Contreras-Rojas ◽  
Sanjay Chawla ◽  
Felix Naumann ◽  
...  
Keyword(s):  
Open Source ◽  
Data Analytics ◽  
Enumeration Algorithm ◽  
Data Movement ◽  
Order Of Magnitude ◽  
Efficient Data ◽  
Cross Platform ◽  
Platform System ◽  
The Cost ◽  
Data Analytic

AbstractData analytics are moving beyond the limits of a single platform. In this paper, we present the cost-based optimizer of Rheem, an open-source cross-platform system that copes with these new requirements. The optimizer allocates the subtasks of data analytic tasks to the most suitable platforms. Our main contributions are: (i) a mechanism based on graph transformations to explore alternative execution strategies; (ii) a novel graph-based approach to determine efficient data movement plans among subtasks and platforms; and (iii) an efficient plan enumeration algorithm, based on a novel enumeration algebra. We extensively evaluate our optimizer under diverse real tasks. We show that our optimizer can perform tasks more than one order of magnitude faster when using multiple platforms than when using a single platform.

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