Web Work Research Articles

Rendering optimization method and implementation of power grid WebGIS based on Web Worker

In the power grid WebGIS application, the graphical display of power grid equipment is one of the most basic functions. However, the massive data brought by the growing number of power grid equipment brings difficulties to both server-side storage and client-side rendering. Aiming at the characteristics of power grid GIS data, this paper presents a Web Worker-based grid WebGIS rendering optimization method and uses a program to implement it. The method improves the rendering speed of the client and optimizes the display effect by marking the displaying rules after data vectorization, simplifying the line data, generating vector tiles dynamically, and station label dodging. The result of the test shows that this method can effectively improve the fluency and user experience of existing power grid GIS applications.

LEAVE MANAGEMENT SYSTEM USING WEB SERVICE WORKER AND CHUNKING OF IMAGE SUBMISSION

Filing a leave of absence is typical for any employee. Employees may be required to submit applications which must be fully accomplished before approval. The aim of this project is like a document tracking system for leave applications through a web application. A responsive web application for leave management system where the applicant will know the status of his/her request. The administration will then be notified if there are requests submitted to them. What makes this project efficient is the incorporation of the service worker, a cutting-edge technology, in web development. A service worker is a type of web worker. It is essentially a JavaScript file that runs separately from the main browser thread, intercepting network requests, caching or retrieving resources from the cache, and delivering push messages. [1] Since service workers run separately from the main thread, workers are independent of the application they are associated with. Some parts of the project are usable offline using the HTTP request. Since leave applications may have image attachments, this system will make it possible to submit images by chunks. Chunking of images is important because there are instances where uploading may fail due to large files or slow internet connection. The use of web service workers provides the accessibility of the application even offline. While chunking of images makes it possible to submit images even on slow connectivity. The implementation of online leave management is geared toward making leave applications simple and convenient and is readily accessible for both the management and the employee.

Server-Side Template Injection with Custom Exploit

Cyber attacks are getting progressively incessant, causing a great deal of harm. Attackers take our valuable information by compromising web application security loopholes. Dynamic content that is being incorporated into the html that has been served to the client. assume when you open a site page then you see your name so that is dynamic substance for each client who additionally at any point visits that page. We can inject input fields and they are shipped off the web worker. So ,we need to check for all information handled whose worth is reflected in some structure to get the prepared payload. Then attempt to misuse it dependent on the layouts. This paper discusses the idea of an template injection and its impact on template based web application

WITHDRAWN: Water management using IOT

Abstract Water is a need of life. In our general public, office and similarly framework require water gracefully consistently. Our framework the board of water flexibly utilizing dynamic IP based Embedded Web worker (EWS). In the current territory of systems administration, to keep up EWS with static Internet Protocol (IP) is exorbitant and hard to oversee. An epic way to deal with relegating dynamic IP to the board is created and tried for various powerful IPs. Dynamic IP is acquired for an implanted board by empowering USB information card through UART convention. The inserted framework comprises of microcontroller (in light of RISK), USB information card and a Very secure document move convention (UART). Installed board (EB) having dynamic IP contains in record move to worker. In the proposed strategy we defeat the disadvantage present in the current framework by checking the sculpture of water. Our methodology depends on the improvement of financially savvy sensor hubs for ongoing. The fundamental sensor hub comprises of a level sensor is the natural marker of water modernity. Also, with the assistance of these boundaries, we can screen the water utilization. From the sensor hub, we are sending observed qualities to the Arudino board. The regulator communicates the information to a far off PC through the web by utilizing UART. UART is a convention through which clients can transfer documents from their frameworks to worker.

Multi-Language Real Time Home Appliances Controlling System using Google Assistance

Smart home system is one of the key domains in applications of Internet of things (IoT). This is attracting attention from large tech companies. The fundamental reason for this undertaking is to control home gadgets with voice. There are numerous gadgets available accessible to do that, however, making our own with low cost and friendlier is main aim of proposed system. Our framework utilizes Adafruit account which is a cloud based free IoT web worker used to make virtual switches. Then it is connecting to IFTTT (IF THIS THEN THAT) site shortened as which is utilized to make if else restrictive explanations. The voice orders for Google collaborator have been added through IFTTT site. As the client provides orders to the Google collaborator, Home Appliances like Bulb, Fan and Motor and so on, can be controlled likewise. The gadget associated with the particular hand-off can be turned on or OFF according to the client’s solicitation to the Google Assistant. Our proposed system uses microcontroller Nodemcu (ESP8266).

Scalable Scalable Vector Graphics: Automatic Translation of Interactive SVGs to a Multithread VDOM for Fast Rendering.

The dominant markup language for Web visualizations-Scalable Vector Graphics (SVG)-is comparatively easy to learn, and is open, accessible, customizable via CSS, and searchable via the DOM, with easy interaction handling and debugging. Because these attributes allow visualization creators to focus on design on implementation details, tools built on top of SVG, such as D3.js, are essential to the visualization community. However, slow SVG rendering can limit designs by effectively capping the number of on-screen data points, and this can force visualization creators to switch to Canvas or WebGL. These are less flexible (e.g., no search or styling via CSS), and harder to learn. We introduce Scalable Scalable Vector Graphics (SSVG) to reduce these limitations and allow complex and smooth visualizations to be created with SVG. SSVG automatically translates interactive SVG visualizations into a dynamic virtual DOM (VDOM) to bypass the browser's slow 'to specification' rendering by intercepting JavaScript function calls. De-coupling the SVG visualization specification from SVG rendering, and obtaining a dynamic VDOM, creates flexibility and opportunity for visualization system research. SSVG uses this flexibility to free up the main thread for more interactivity and renders the visualization with Canvas or WebGL on a web worker. Together, these concepts create a drop-in JavaScript library which can improve rendering performance by 3-9× with only one line of code added. To demonstrate applicability, we describe the use of SSVG on multiple example visualizations including published visualization research. A free copy of this article, collected data, and source code are available as open science at osf.io/ge8wp.

RETRACTED: Medical intelligent processor system and traditional Chinese medicine to treat endometriosis

It is viewed as human sickness; an ongoing report shows that it very well might be a significant reason for metastatic malignant growth and barrenness. It additionally has been related to different illnesses identified with the capacity of the invulnerable framework. Hereditary and ecological variables are known to impact the turn of events and side effects of endometriosis. Danger elements of endometriosis in a ladies are a synopsis of the most recent exploration of analysis and treatment. As an effective and novel knowledge management technology, the Knowledge Graph provides a new way to inherit the traditional Chinese medicine development. However, the Traditional Chinese Medicine (TCM) knowledge graph is based on the current configuration data. An inserted Web worker is a blend of installed gadgets and Internet innovation. Focus on the advancement of clinical MSP430 and Acorn RISC Machine (ARM) 11 (Raspberry Pi) inside organization workers. For instance, blood oxygen, pulse, an information obtaining arrangement of the patient endometriosis, circulatory strain plan Utilized as a simple front end and the arm as Linux OS and a leading computerized group of the base station of the organization completely utilitarian In a restricted space worker, the fundamental thought, as specialists realize the medical issue of the patient, to realize the ailment of the patient, is the shading Occasionally, he is likewise a spot that doesn't arrive at the patient, as expected. Traditional Chinese Medication (TCM) is created, including different types of traditional Chinese medication. Needle therapy, just as development, depends on the idea of a typical act of the year and the customary drug stocks in a wide reach sustenance therapy. It, for the most part, is utilized as a reciprocal and elective clinical medicine. Since it is based is consumed into the philosophical hypothesis. Impact of Chinese philosophical works by the greater part of five components and a similar likeness hypothesis microcosm of the universe is grounded.

A Webpage Offloading Framework for Smart Devices

Smart devices such as mobile phones and smart TVs are widely used for enriching our daily activities. Although their power source and processing speed are limited, it is necessary for these devices to provide certain computation power. To enhance computation capability on smart devices, offloading is proposed as one of the effective approaches. However, it requires extra efforts for developers to implement the offloading mechanism for each application. HTML5 standard provides a feature called Web Worker which allows web pages to spawn separate threads as workers. Since each worker holds individual execution environments and contexts, it is appropriate for offloading without complex partition. In this paper, we present a generic offloading framework for JavaScript Web Worker named Web Worker Offloading Framework (WWOF). This framework can offload the workers from browsers to the cloud easily and seamlessly. The Web Worker runs on an offloading server instead of on the browser, and exchanges data with clients via WebSocket. To prove the feasibility of this framework, we evaluated several benchmarks on different platforms including PCs, tablets, mobile phones and smart TVs. It is verified that this framework is able to suppress the devices’ power consumption and to increase the execution speed, while running a heavy workload.

Cloud Computing to Improve JavaScript Processing Efficiency of Mobile Applications

The burgeoning distribution of smartphone web applications based on various mobile environments is increasingly focusing on the performance of mobile applications implemented by JavaScript and HTML5 (Hyper Text Markup Language 5). If application software has a simple functional processing structure, then the problem is benign. However, browser loads are becoming more burdensome as the amount of JavaScript processing continues to increase. Processing time and capacity of the JavaScript in current mobile browsers are limited. As a solution, the Web Worker is designed to implement multi-threading. However, it cannot guarantee the computing ability as a native application on mobile devices, and is not sufficient to improve processing speed. The method proposed in this research overcomes the limitation of resources as a mobile client and guarantees performance by native application software by providing high computing service. It shifts the JavaScript process of a mobile device on to a cloud-based computer server. A performance evaluation experiment revealed the proposed algorithm to be up to 6 times faster in computing speed compared to the existing mobile browser`s JavaScript process, and 3 to 6 times faster than Web Worker. In addition, memory usage was also less than the existing technology.

Dynamic web worker pool management for highly parallel javascript web applications

SummaryJavaScript web applications are improving performance mainly thanks to the inclusion of new standards by HTML5. Among others, web workers API allows multithreaded JavaScript web apps to exploit parallel processors. However, developers have difficulties to determine the minimum number of web workers that provide the highest performance. But even if developers found out this optimal number, it is a static value configured at the beginning of the execution. Because users tend to execute other applications in background, the estimated number of web workers could be non‐optimal, because it may overload or underutilize the system. In this paper, we propose a solution for highly parallel web apps to dynamically adapt the number of running web workers to the actual available resources, avoiding the hassle to estimate a static optimal number of threads. The solution consists in the inclusion of a web worker pool and a simple management algorithm in the web app. Even though there are co‐running applications, the results show our approach dynamically enables a number of web workers close to the optimal. Our proposal, which is independent of the web browser, overcomes the lack of knowledge of the underlying processor architecture as well as dynamic resources availability changes. Copyright © 2015 John Wiley & Sons, Ltd.

Cyclostorm : WAC 기반 모바일 앱의 자바스크립트 처리 효율 향상을 위한 클라우드 컴퓨팅 서비스

WAC (Wholesale Application Community) 기반 모바일 웹 애플리케이션의 보급이 널리 확산됨에 따라 자바스크립트와 HTML (Hyper Text Markup Language)로 구현된 애플리케이션의 처리 성능이 점차 이슈화되고 있다. 단순한 처리 기능만을 갖는 구조라면 현재 통용되는 브라우저에서도 문제가 없지만 자바스크립트의 처리량이 점점 증가 할수록 브라우저의 처리 부담 또한 가중된다. 현재 상용화 되어 있는 모바일 브라우저에서는 자바스크립트의 처리에 시간 및 용량의 제한을 두고 있다. 이러한 문제점의 해결을 위한 대안으로서 HTML 5에서는 기존의 자바스크립트에서는 지원하지 않는 멀티 스레드 구현을 위한 Web Worker를 제공하고 있다. Web Worker는 싱글 스레드에서 처리하는 일정 부분을 별도의 스레드를 통해서 처리하는 메커니즘을 제공한다. 하지만 이는 모바일상의 Native 애플리케이션만큼의 처리 능력을 보장하는 것이 아니며 근본적인 처리 속도 개선 방법으로는 미흡하다. Cyclostorm은 이러한 모바일 상에서의 자바스크립트 처리를 클라우드 상의 컴퓨터 서버에 이전함으로써 모바일 클라이언트로서의 자원적 한계를 극복하고 고성능 처리 서비스를 제공하여 Native 애플리케이션 만큼의 성능을 보장한다. 성능 평가 실험에서 Cyclostorm은 기존의 모바일 브라우저에서의 자바스크립트 처리보다 최대 6배 빠른 처리 속도를 보이고 있고 HTML 5의 Web Worker보다는 3∼6배정도의 빠른 성능을 보이고 있다. 또한 메모리 부분에서도 서버 측에 존재하는 메모리를 사용하기 때문에 전반적으로 기존의 방법보다는 낮은 사용량이 측정 되었다. 본 논문에서는 현재 모바일 산업에서 화두가 되고 있는 WAC 기반에서 모바일 브라우저가 갖고 있는 한계를 극복하고 기존 웹 애플리케이션의 성능을 획기적으로 개선할 수 있는 클라우드 컴퓨팅 서비스인 Cyclostorm을 소개한다.

스마트 TV환경에 적합한 Web Worker 기반의 그리드 컴퓨팅 시스템

스마트TV의 보급이 확대되면서 스마트TV의 여유연산능력을 활용한 그리드 컴퓨팅시스템에 대한 수요가 증가할 것으로 예측하고 있다. 그러나 스마트TV는 PC와 달리 다양한 플랫폼이 존재하고, 또한 사용자들의 스마트 TV사용 패턴이 기존 PC 사용 패턴과 크게 다르기 때문에 PC기반의 그리드 시스템을 적용하기에는 어려움이 있다. 즉, 유휴 상태에서 동작하던 기존 그리드 에이전트가 스마트TV 환경에서는 동작할 기회를 보장 받을 수 없는 상황이 된 것이다. 본 논문에서는 이러한 문제를 극복하기 위하여 스마트TV에 적합한 자바스크립트 기반의 그리드 시스템 및 콘텐츠 시청 중에 남는 CPU자원을 활용하는 에이전트 스케줄링 정책을 제안하고 구현하였다. 그리고 기존 그리드 방식과 제안하는 방식을 비교 실험하여, 그 결과 기존의 그리드가 0.09%, 제안하는 방식은 평균 1.78%의 자원을 제공함을 보였다. In recent years, there has been a popularity rose up on Smart TV (Smart Television) usage at home. Therefore, it is also have increase the demand on grid computing system. Smart TV has a variety of platform and usage compare to PC (Personal computer). Base on this, it is difficult to apply a traditional grid system on Smart TV. One major reason are concerning the small idle time compare to PC. To overcome this problem, this paper will propose a Javascript grid system and introducing a new scheduling policy that best suit for a smart TV. We have conduct an experiment on the proposed method. The result provides an average of 1.78 percent, which is improved compare to the traditional method which is only provides an average of 0.09 percent.