14 research outputs found

    A Review: Analysis of White Space for Designing Communication Module

    Get PDF
    In this paper we propose the literature review related to analysis of White Space for Designing Communication Module. The radio frequency spectrum is an essential factor in communication network. With demand for wireless connectivity increasing, the exploitation of white space is an attractive way of making more efficient use of radio spectrum. This paper is based on the detecting the unutilized spectrum that can safely be used for broadband communication networks

    Mining Query Plans for Finding Candidate Queries and Sub-Queries for Materialized Views in BI Systems Without Cube Generation

    Get PDF
    Materialized views are important for optimizing Business Intelligence (BI) systems when they are designed without data cubes. Selecting candidate queries from large number of queries for materialized views is a challenging task. Most of the work done in the past involves finding out frequent queries from the past workload and creating materialized views from such queries by either manually analyzing workload or using approximate string matching algorithms using query text. Most of the existing methods suggest complete queries but ignore query components such as sub queries for creation of materialized views. This paper presents a novel method to determine on which queries and query components materialized views can be created to optimize aggregate and join queries by mining database of query execution plans which are in the form of binary trees. The proposed algorithm showed significant improvement in terms of more number of optimized queries because it is using the execution plan tree of the query as a basis of selection of query to be optimized using materialized views rather than choosing query text which is used by traditional methods. For selecting a correct set of queries to be optimized using materialized views, the paper proposes efficient specialized frequent tree component mining algorithm with novel heuristics to prune search space. These frequent components are used to determine the possible set of candidate queries for creation of materialized views. Experimentation on standard, real and synthetic data sets, and also the theoretical basis, proved that the proposed method is able to optimize a large number of queries with less number of materialized views and showed a significant improvement in performance compared to traditional methods

    Review of Swarasa Kalpana of Single Drug by Sharangadhara Samhita wsr to Phytochemical Analysis

    No full text
    Sharangadhara Samhita is most important Samhita on Bhaishajya Kalpana (Ayurvedic pharmacy) and considered in Laghutrayee. It consists of three Khand (Division)- Poorva Khand, Madhyam Khand, Uttar Khand. Ayurveda offers personalised treatment according to each patient’s unique Doshavastha. Acharya Charaka has described Chikitsa Chatushpada which includes Bhishak (Physician), Upasthata (Medical Attendant), Rogi (Patient) and Dravya (medicine). The selection of Dravya (medicine) is important step in management of disease. Acharya Charaka has mentioned qualities of Dravya like 1) Bahuta 2) Yogyatam 3) Aanekvidha kalpana 4) Sampat. We use whole drug which contain many chemicals which are separated by Agni (Digestive system). These chemicals are absorbed and move in the body through Rasavaha Strotasa.  They interact with each other and modify gene expression at cellular level. Proper Kalpana (formulations) facilitates better chemical separation, absorption and interaction. Thus, overall efficacy of the drug. Phytochemical analysis includes alkaloids, flavonoids, glycosides, phenols, saponins, sterols, tannins, anthraquinone etc. These are important phytochemicals and termed as active principles responsible for action of drug. Different Bhaishajya Kalpana are used to extract active principles of Dravya with the help of medium like water, oil, alcohol, Ghrita. Panchavidha kashaya Kalpana includes Swarasa (liquid), Kalka (paste), Kwatha (decoction), Hima (cold infusion) and Phanta (hot infusion) and are fundamental Ayurvedic Bhaishajya Kalpana. Churna, Vati, Avaleha, Sneha & Sandhan Kalpana are modified forms of Panchavidha Kashaya Kalpana. Hence review of Swarasa Kalpana of single drug by Sharangadhara Samhita wsr to phytochemical analysis is taken

    Performance analysis of DoS LAND attack detection

    Get PDF
    Nowadays, e-community business, web servers and organizations, mainly suffered by Denial of Service (DoS) attacks. DoS is a common attack causes significant problems in business operations and 65% organizations are suffering over the Internet. This type of attack is created by sending a high rate malicious traffic towards the server and block genuine users using desired network sources and services. In this way this attack consumes the network resources and services which results into degrades the availability of desired services to the valid users. This paper proposes the intrusion detection mechanism for DoS detection such as Local Area Network Denial (LAND), which classified into the Network Traffic Analyzer, Traffic Features Identification and Extraction, IP spoofing based attack detection and Intruder Information. This system efficiently detects DoS LAND based on IP spoofing. This system analyzes the network resources consumed by an attacker. The system is implemented and tested using open source tools. The experimental result shows that, the proposed system produces better performance in comparison with state-of-art existing system and result into a low level of memory and CPU usage

    CPU Load Analysis & Minimization for TCP SYN Flood Detection

    Get PDF
    AbstractDenials of service attacks are well-known as one of the major threats in today's Internet services. Majority VOIP services, DNS servers, online gaming and e-commerce applications are suffering and targeted by hackers using the execution of denial of service attack. Web application attacks and denial of service attacks in distributed architecture is significantly increases day by day. The denial of service attack hampers the load on CPU of web servers during the attack. Therefore, there is a need to minimize the load of CPU after effective attack detection.This paper proposes and implemented denial of service detection framework which consists of packet sniffer, feature extraction, attack detection and output module. The proposed framework detects denial of service attack such as TCP SYN Flood based on threshold and misuse detection. The system is analyzed with the help of CPU load and the load of CPU is minimized after TCP SYN flood attack detection

    MINIMIZATION OF POLLUTANTS OF EXHAUST GAS FROM HIGH TRAFFIC AREA & INDUSTRIAL SECTOR BY USING EXOTHERMIC REACTION

    No full text
    It is today undoubted that humans have to reduce their impact on the environment. IC engines, being the major power source in the transportation sector, play an important role in the man-made emissions. While the mobility in the world is growing, it is important to reduce the emissions that result from transportation, which are believed to be the main cause of global warming. Exhaust by fuel combustion contains toxic gases, various harmful pollutants mainly nitrogen oxides (NOX) and soot particles. These emissions are therefore limited by the authorities in most countries. In heavy traffic area and in industrial sector we find very high Pollution. This research work is carried out to minimize the pollution in our focused area. An unsteady state behaviour of gas absorption column for CO2-NaOH system was carried out using the arm field gas absorption column. A model equation was developed by considering material balance around the system. The concentrations of the inlet and outlet liquid streams and the gas outlet stream varied as functions of time. By Experimental analysis, the percentage of pollutants from exhaust gas is minimized. The test conducted for the duration of 90 minutes showed that 0.2 gram mole/litre of NaOH solution reacts with CO2 to give 0.1 gram mole/litre of Na2CO3.This clearly shows that the results of experiments conducted are in agreement with the model results

    Prolyl hydroxylase inhibitor desidustat improves anemia in erythropoietin hyporesponsive state

    No full text
    Many anemic chronic kidney disease (CKD) patients are refractory to erythropoietin (EPO) effects due to inflammation, deranged iron utilization, and generation of EPO antibodies. This work assessed the effect of desidustat, an inhibitor of hypoxia inducible factor (HIF) prolyl hydroxylase (PHD), on EPO-refractory renal anemia. Sprague Dawley rats were made anemic by cisplatin (5 ​mg/kg, IP, single dose) and turpentine oil (5 ​mL/kg, SC, once a week). These rats were given recombinant human EPO (rhEPO, 1 ​μg/kg) and desidustat (15 or 30 ​mg/kg) for eight weeks. Separately, rhEPO (1–5 ​μg/kg) was given to anemic rats to sustain the normal hemoglobin levels and desidustat (15 ​mg/kg) for eight weeks. In another experiment, the anemic rats were treated rhEPO (5 ​μg/kg) for two weeks and then desidustat (15 ​mg/kg) for the next two weeks. Dosing of rhEPO was thrice a week, and for desidustat, it was on alternate days. Desidustat inhibited EPO-resistance caused by rhEPO treatment, decreased hepcidin, IL-6, IL-1β, and increased iron and liver ferroportin. Desidustat reduced EPO requirement and anti-EPO antibodies. Desidustat also maintained normal hemoglobin levels after cessation of rhEPO treatment. Thus, novel prolyl hydroxylase inhibitor desidustat can treat EPO resistance via improved iron utilization and decreased inflammation

    Coagonist of GLP-1 and glucagon receptors ameliorates non-alcoholic fatty liver disease

    No full text
    Nonalcoholic fatty liver disease (NAFLD) is often associated with obesity and type 2 diabetes. Coagonist of glucagon-like peptide-1 receptor (GLP-1R) and glucagon receptor (GCGR) are under clinical investigation for the treatment of obesity and type 2 diabetes. In this study, we have demonstrated the effect of a balanced coagonist in the treatment of NAFLD using mice models. GLP-1R agonist exendin-4, glucagon, and coagonist (Aib2 C24 Chimera2) were administered to C57BL6/J mice, in which NAFLD was induced by carbon tetrachloride (CCl4) treatment after in high fat diet (HFD) feeding, and CDAHFD (choline-deficient, L-amino acid-defined, HFD). Repeated dose administration of coagonist significantly attenuated liver inflammation and steatosis induced by acute and long-term treatment with CCl4 in HFD-fed mice. Coagonist markedly attenuated the CDAHFD-induced expression of TIMP-1, MMP-9, TNF-ÃŽÄ…, MCP-1, COL1A1 and ÃŽÄ…-SMA. It also inhibited progression of hepatic steatosis and fibrosis in mice. Exendin-4 was better than glucagon, but coagonist was most effective in reduction of hepatic inflammation as well as steatosis. Coagonist of GLP-1R and GCGR improved NAFLD in C57BL6/J mice. This effect is mediated by reduction in lipotoxicity and inflammation in liver.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author
    corecore