scholarly journals Enhancement the Efficiency of Work with P2P System

2020 ◽  
Vol 06 (09) ◽  
pp. 68-72
Author(s):  
Abhilisha Pandurang Bhalke
Keyword(s):  
High Efficiency ◽  
Peer Group ◽  
Bloom Filter ◽  
File Sharing ◽  
Common Interest ◽  
Experimental Result ◽  
Physical Proximity ◽  
Exchange Performance ◽  
Hierarchical Topology ◽  
P2p System

The P2P system should be used Proximity information to minimize the load of file request and improve the efficiency of the work .Clustering peers for their physical proximity can also rise the performance of the request file. However, very few currently work in a peer group based on demands as peers on physical proximity. Although structured P2P provides more efficient files requests than unstructured P2P, it is difficult to apply because of their strictly defined topology. In this work, we intending to introduce a system for exchange a P2P file for proximity and level of interest based on structured P2P nodes that form physically block in the cluster and other groups physically close and nodes of public interest in sub-cluster based on the hierarchical topology. Querying an effective file is important for the overall P2P file exchange performance. Clustering peers from their common interests can significantly enhance the efficiency of the request file PAIS use an intelligent file replication algorithm to further rise the efficiency of the request file .Create a copy file that is often requested by a group of physically close nodes in their position. In addition, PAIS improves the search for files within the intra-system sub-cluster through various approaches. First, it further classifies interest in the sub-cluster to a number of subsections of interests and groups with common interest-free sub nodes in the group for file sharing. Secondly PAIS creates an over for each group that connects nodes of less node capacity to a higher throughput for the distributed node overload prevention request file. Third, in order to reduce the search for late files, PAIS uses a set of proactive information so that applicant can file knowledge if its requested file is in the neighboring nodes. Fourth, reduce the overhead of collecting information about files using the PAIS, collection of file information based on the Bloom Filter and the corresponding search for files distributed. Fifth, in order to improve the efficiency of file sharing, PAIS ranks the results with a blob of filters in order. Sixth, while the newly visited file is usually re-visited approach, based on the Bloom filter is improved only through the management of new information flowering filter is added to reduce the delay of file search. The experimental result of the Real-world Planet Lab Experiment shows that PAIS significantly reduces overhead and improves the efficiency of scrolling and without sharing files. In addition, the experimental results show high efficiency within the sub-research cluster of file approaches to improve file search efficiency.

scholarly journals Route Prefix Caching Using Bloom Filters in Named Data Networking

2020 ◽  
Vol 10 (7) ◽  
pp. 2226
Author(s):  
Junghwan Kim ◽  
Myeong-Cheol Ko ◽  
Jinsoo Kim ◽  
Moon Sun Shin
Keyword(s):  
Bloom Filter ◽  
Bloom Filters ◽  
Experimental Result ◽  
Named Data Networking ◽  
Next Generation Internet ◽  
Complex Process ◽  
Caching Scheme ◽  
Name Lookup ◽  
Cache Miss ◽  
Data Networking

This paper proposes an elaborate route prefix caching scheme for fast packet forwarding in named data networking (NDN) which is a next-generation Internet structure. The name lookup is a crucial function of the NDN router, which delivers a packet based on its name rather than IP address. It carries out a complex process to find the longest matching prefix for the content name. Even the size of a name prefix is variable and unbounded; thus, the name lookup is to be more complicated and time-consuming. The name lookup can be sped up by using route prefix caching, but it may cause a problem when non-leaf prefixes are cached. The proposed prefix caching scheme can cache non-leaf prefixes, as well as leaf prefixes, without incurring any problem. For this purpose, a Bloom filter is kept for each prefix. The Bloom filter, which is widely used for checking membership, is utilized to indicate the branch information of a non-leaf prefix. The experimental result shows that the proposed caching scheme achieves a much higher hit ratio than other caching schemes. Furthermore, how much the parameters of the Bloom filter affect the cache miss count is quantitatively evaluated. The best performance can be achieved with merely 8-bit Bloom filters and two hash functions.

Effect of Shock Loading on Food Processing

2006 ◽  
Author(s):  
Toshiaki Watanabe ◽  
Hironori Maehara ◽  
Asuka Oda ◽  
Shigeru Itoh
Keyword(s):  
Shock Wave ◽  
Pressure Vessel ◽  
Food Processing ◽  
Food Industry ◽  
Shock Loading ◽  
High Efficiency ◽  
The Other ◽  
Experimental Result ◽  
Shock Wave Loading ◽  
Wave Loading

In the food industry, it is hoping high value-aided product and the increase in efficiency of food processing. On the other hand, we get an experimental result that the load of the shock wave improves an extraction of food, and soften food. But, the safe and high efficiency pressure vessel for the processing is necessary to apply these technologies to the food processing field actually. Therefore, we are planning the development of the pressure vessel for food processing. The fundamental data of the shock loading to food are necessary in order to make suitable vessel. As for these data, it is variety the specifications required by the kind of food and effect to expect. We report the result that shock wave loading was done to various food.

scholarly journals Investigation on the Impact of Protrusion Parameter on the Efficiency of Converting Additional Windage Loss for Ingress Alleviation in Rotor–Stator System

2016 ◽  
Vol 138 (11) ◽  
Author(s):  
Dongdong Liu ◽  
Zhi Tao ◽  
Xiang Luo ◽  
Wenwu Kang ◽  
Hongwei Wu ◽  
...  
Keyword(s):  
Reynolds Number ◽  
Flow Rate ◽  
High Efficiency ◽  
Co2 Concentration ◽  
Experimental Result ◽  
Cavity Pressure ◽  
Air Flow Rate ◽  
System Experiment ◽  
The Impact ◽  
Proper Setting

This paper presents a detailed investigation on the impact of protrusion parameter including both radial position and amount on the efficiency of cavity with protrusion converting additional windage loss for ingress alleviation in rotor–stator system. Experiment is conducted to explore the effect of protrusion parameter on ingress, and the corresponding additional windage loss is also calculated. During the experiment, rotor-mounted protrusions are circumferentially assembled at three different radial positions (0.9b, 0.8b, and 0.7b) each with four different amounts (32, 24, 16, and 8). Measurements of CO2 concentration and pressure inside turbine cavity are conducted. In the experiment, the annulus Reynolds number and rotating Reynolds number are set at 1.77 × 105 and 7.42 × 105, respectively, while the dimensionless sealing air flow rate ranges from 3047 to 8310. Experimental result shows that the cases of protrusion set at 0.8b achieve higher sealing efficiency than other cases as the cavity pressure is enhanced. The effect of protrusion amount on ingress could be obviously seen when CW is small or protrusion set in 0.7b. Furthermore, a parameter to evaluate which case obtains higher efficiency of converting additional windage loss for ingress alleviation, or alleviates ingress more efficiently for short, is applied for discussion. It is found that the case “C, N = 8” alleviates ingress most efficiently among all the cases. Therefore, proper setting of the protrusion could lead to high efficiency of converting additional windage loss for ingress alleviation in rotor–stator system.

IMPLEMENTATION OF A PURE P2P COLLABORATION MULTIPLATFORM AND ITS APPLICATIONS

2005 ◽  
Vol 06 (03) ◽  
pp. 229-244 ◽  
Author(s):  
NOBUHIRO NAKAMURA ◽  
LEONARD BAROLLI ◽  
SOUICHIROU TAKAHAMA ◽  
KAORU SUGITA ◽  
JIANHUA MA ◽  
...  
Keyword(s):  
General Framework ◽  
Peer Group ◽  
Virtual Network ◽  
Self Organization ◽  
Peer Communication ◽  
P2p Computing ◽  
Space Management ◽  
Communication Support ◽  
P2p System ◽  
Windows Xp

Peer-to-Peer (P2P) computing offers many attractive features, such as collaboration, self-organization, load balancing, availability, fault tolerance and anonymity. However, it also faces many serious challenges. In our previous work, we implemented a synchronous P2P collaboration platform called TOMSCOP. Based on the elementary peer group services offered by the JXTA general framework, TOMSCOP provides four types of services: synchronous message transportation, peer room administration, peer communication support and application space management. By using the four services, different kinds of shared applications for various specific purposes can be relatively easily developed and associated collaborative cyber spaces or communities can be quickly built across the JXTA virtual network overlaid on top of the existing physical networks. However, the TOMSCOP was implemented only in Windows XP OS. In this paper, we extend our previous work and present the implementation of a Multi-Platform P2P System (MPPS). The proposed system operates very smoothly in UNIX Solaris 9 OS, LINUX Suse 9.1 OS, Mac OSX, Windows XP and NetBSD.

The Design and Realization of Airborne Electrical Equipments’ Online Test System in the Environments of Mechanics

2014 ◽  
Vol 687-691 ◽  
pp. 1038-1043
Author(s):  
Yong Tao Yu ◽  
Ming Chen ◽  
Feng Tian ◽  
Ying Ji Shan
Keyword(s):  
High Efficiency ◽  
Dynamic Test ◽  
Digital Signal ◽  
Test System ◽  
Experimental Result ◽  
Signal Acquisition ◽  
Online Test ◽  
Development Tool ◽  
The Stability ◽  
Software Development Tool

Current OTS (Online Test System, OTS) of airborne electrical equipments in the environments of mechanics is only able to test statically but dynamically. To solve the problem, a new kind of dynamic test system based on PXI bus is designed. In the design, modular instrument resources that used in the third generation of ATE (Auto Test System, ATE) commonly is adopted to prove the system’s reusability, extensibility and standard ability, digital signal acquisition is replaced with analog signal acquisition to realize dynamic test, support from the method of process monitoring is drew to get the capability to detect the reversible failure in UUT (Unit Under Test, UTT), VC++ language is used as the software development tool to control the system and record test data. In the special mechanics environment such as centrifuge, drawing lessons from the experience of the new concept dynamic test, the system architecture of remote control acquisition is used to prove the stability and efficiency of the test system greatly. The experimental result shows that the system runs well and has more advantages such as high efficiency of auto-test and reliability of failure diagnosis results, meeting new demand of the airborne electrical equipments’ online test in the environments of mechanics.

scholarly journals SE-PSI: Fog/Cloud server-aided enhanced secure and effective private set intersection on scalable datasets with Bloom Filter

2021 ◽  
Vol 19 (2) ◽  
pp. 1861-1876
Author(s):  
Shuo Qiu ◽  
◽  
Zheng Zhang ◽  
Yanan Liu ◽  
Hao Yan ◽  
...  
Keyword(s):  
Big Data ◽  
Experimental Evaluation ◽  
High Efficiency ◽  
Bloom Filter ◽  
Medical System ◽  
Set Intersection ◽  
Cloud Server ◽  
Private Set Intersection ◽  
Enhance Efficiency ◽  
Application Requirements

<abstract><p>Private Set Intersection (PSI), which is a hot topic in recent years, has been extensively utilized in credit evaluation, medical system and so on. However, with the development of big data era, the existing traditional PSI cannot meet the application requirements in terms of performance and scalability. In this work, we proposed two secure and effective PSI (SE-PSI) protocols on scalable datasets by leveraging deterministic encryption and Bloom Filter. Specially, our first protocol focuses on high efficiency and is secure under a semi-honest server, while the second protocol achieves security on an economic-driven malicious server and hides the set/intersection size to the server. With experimental evaluation, our two protocols need only around 15 and 24 seconds respectively over one million-element datasets. Moreover, as a novelty, a <italic>multi-round</italic> mechanism is proposed for the two protocols to improve the efficiency. The implementation demonstrates that our <italic>two-round</italic> mechanism can enhance efficiency by almost twice than two basic protocols.</p></abstract>

scholarly journals Enhancement the Agglutination of Erythrocytes in Blood Typing Test by Acousto-Optic Technique

2020 ◽  
Vol 23 (4) ◽  
pp. 365-370
Author(s):  
Farah Mohammed Ali ◽  
Jamal A. Hasan ◽  
Eman Ghadhban Khalil
Keyword(s):  
Blood Group ◽  
Digital Image ◽  
High Efficiency ◽  
Digital Camera ◽  
Experimental Result ◽  
Optical Technique ◽  
Microscope Slide ◽  
Blood Group Typing ◽  
Different Color ◽  
Short Time

A proposed modern technique for determination the blood group typing by monitoring the agglutination of red blood cells using acousto-optical technique and digital camera. The method based on analysis the digital image of the agglutination process by MATLAB software. We present an overview of two acousto-optic sensing approaches; the first demonstrates the cuvette approach while the second is the microscope slide approach. The cuvette approach digital image analyzing depends on the green channel distribution of the original image and count the brighten pixels, while the microscope slide approach passes through series of algorithms started with grayscale filter and end with edge detection it counts the different color pixels. The experimental result shown that it is possible to enhance the determination of blood group typing by using acousto-optical technique in both cases of using isohemagglutinating sera as well as the crossmatch test in a short time and high efficiency compared with the traditional methods.

scholarly journals Performance Comparison of Weak Filtering in HEVC and VVC

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 960
Author(s):  
Junghyun Lee ◽  
Jechang Jeong
Keyword(s):  
Video Coding ◽  
High Efficiency ◽  
Performance Comparison ◽  
Video Codec ◽  
Experimental Result ◽  
Test Model ◽  
High Efficiency Video Coding ◽  
Loop Filter ◽  
Filtering Method ◽  
Filter Process

This study describes the need to improve the weak filtering method for the in-loop filter process used identically in versatile video coding (VVC) and high efficiency video coding (HEVC). The weak filtering process used by VVC has been adopted and maintained since Draft Four during H.265/advanced video coding (AVC) standardization. Because the encoding process in the video codec utilizes block structural units, deblocking filters are essential. However, as many of the deblocking filters require a complex calculation process, it is necessary to ensure that they have a reasonable effect. This study evaluated the performance of the weak filtering portion of the VVC and confirmed that it is not functioning effectively, unlike its performance in the HEVC. The method of excluding the whole of weak filtering from VVC, which is a non-weak filtering method, should be considered in VVC standardization. In experimental result in this study, the non-weak filtering method brings 0.40 Y-Bjontegaard-Delta Bit-Rate (BDBR) gain over VVC Test Model (VTM) 6.0.

Study on Chemical Grout Permeation Mechanism Based on Experiment of Mud and Sand Medium

2012 ◽  
Vol 608-609 ◽  
pp. 1809-1813
Author(s):  
Duo Tian ◽  
Hao Yu Shi ◽  
En Jun Fu
Keyword(s):  
Permeability Coefficient ◽  
Single Phase ◽  
High Efficiency ◽  
Simulation Experiment ◽  
Main Type ◽  
Seepage Flow ◽  
Experimental Result ◽  
Phase Permeability ◽  
Grouting Pressure ◽  
Collapse Column

In order to fully mechanized caving face bypass collapse column on safety and high efficiency, this paper do similarity simulation experiment, and obtained experimental result that main type of seepage flow includes finger seepage and surface seepage, the grout enter into around pore and occupy it’s space in grouting pressure. Moisture content of mud and sand medium is lower, grouting process can be regarded as single-phase permeability, analysis on the relation between grouting diffusion radius and other parameters. may know that grouting diffusion radius is increased with the increase of permeability coefficient and grouting pressure and grouting time, and is decreased with the increase of Porosity and grout viscosity.

Numerical Simulation on Efficient Spinning Technology Based on Multi-Point Adjusting Principle

2011 ◽  
Vol 189-193 ◽  
pp. 2993-2996
Author(s):  
Xue Peng Gong
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Plastic Deformation ◽  
Finite Element ◽  
Flexible Manufacturing ◽  
High Efficiency ◽  
Equivalent Stress ◽  
Experimental Result ◽  
Element Analysis ◽  
Fea Model

In order to realize high efficiency and flexible manufacturing for rotary surfaces, efficient spinning technology (EST) is researched. It is the combination of multi-point forming and traditional spinning. Principle of EST is described, traditional spinning method is compared with it, and characteristics of it are analyzed. Finite element analysis (FEA) model of disc-shape part is established, EST process is analyzed, equivalent stress and plastic strain distributions are analyzed. EST equipment is developed, and the experiments are made. Results indicate: EST process consists of four stages; equivalent stress in sheet metal’s center region and bendable rollers active region exceeds yield stress, and plastic deformation is generated; experimental result accords with simulation result. Feasibility of EST is validated by simulation and experimental results.

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