Research on QoS Guarantee Technology for Intercom System Based on SIP

2014 ◽  
Vol 644-650 ◽  
pp. 2863-2867
Author(s):  
Zhen Li ◽  
Qian Yi Yang ◽  
Yi Chen Zhou ◽  
Hui Ren

Theatre intercom system based on SIP has solved the defects of traditional theater scheduling, but it doesn't guarantee the quality of service (QoS). This paper introduced the key technology for SIP-based theatre intercom system, including the fundamentals of VOIP and signaling technology. We analysed the main factors influencing QoS, summarized correlative techniques improving QoS for theatre intercom system, including QoS relevant protocols and QoS guarantee technology on terminals. These technologies can be synthetically used, so as to improve the reliability of theatre intercom system.

Author(s):  
Kazimi Parviz Firudin Oqlu ◽  
Azad Qurbanov

The article examines the factors influencing the overall satisfaction of readers and the quality of service in order to identify the strengths and weaknesses of the library and information activities of Azerbaijan. The research was carried out on the basis of the "SERVQUAL" model. The Customer Satisfaction Index (CSI) was calculated, evaluated on a 7-point Laykert scale for 5 dimensions and a “threshold” index was determined. Based on the analysis of the results obtained, the ergonomic environment, the provision of new information, the professionalism of the staff and openness to managerial innovations were identified as the main factors influencing the satisfaction of readers and the quality of service.


2021 ◽  
Vol 7 (4) ◽  
pp. 212
Author(s):  
Katarzyna Turoń ◽  
Andrzej Kubik

The market for shared mobility services is growing very quickly. New types of vehicles have been introduced, and the offer of available services and functionalities has expanded, the purpose of which is to improve the quality of service. Despite all the improvements, it is still not possible to speak of achieving full availability of systems that meet the needs of users. This is due to the reluctant involvement of operators of shared mobility systems in joining Mobility as a Service platforms based on the idea of open innovation. The aim of the article is to analyze the factors influencing the limitations in the development of open innovations in the form of Mobility as a Service (MaaS) services. The authors focus on identifying the challenges and concerns faced by shared mobility service providers. The article supports the development of the concept of open innovation in shared mobility services. It also contains practical recommendations for the development of MaaS systems. The results of the developed research can be used by operators of shared mobility services, transport authorities, or IT service providers providing MaaS services to strengthen cooperation and integration using the language of mutual benefit.


Author(s):  
Nataliya Hanych

The historic preconditions of the lodging sites development are analyzed. The historic periods in the hotel sphere development are described. The main factors that lead to the formation and development of the hotel establishments are singled out. The development of services, quality of service, features of hotels architectural planning is characterized. The historic references on the first hotels in Lviv are submitted. The development of accommodation facilities in different time periods is traced. The influence of the historical background on the development of hotel infrastructure is analyzed. The recommendations on the future development of hotel infrastructure in Lviv are worked out. Key words: lodging, accommodation, lodging services.


1949 ◽  
Vol 16 (3) ◽  
pp. 356-362 ◽  
Author(s):  
D. P. Persai ◽  
C. R. Barnicoat

Of the four main factors commonly regarded as influencing keeping properties of ghee, viz. moisture content, acidity, heat treatment and type of bacterial culture used in souring, the heat treatment was found to be the most important.In general, the higher the final temperature (110° C. and higher) attained during evaporation, the better were the keeping properties of the product, providing that the butter had been heated in contact with curd, boiled as rapidly as possible, and given a minimum amount of stirring.The improved keeping properties conferred on ghee heated to 110–150° C. were promoted by antioxidants (apparently phospholipids) extracted from the curd during cooking.Initial acidity and moisture contents had no effect on storage life of ghee at 38° C., and the practice of grading ghee according to its acidity would appear to be of questionable value. Souring of milk to give 2·5–3·0% lactic acid and the accompanying desirable flavour did not detract from the keeping quality of the ghee made from it.The type of bacterial culture used for souring had only slight influence on keeping quality of ghee, but a marked influence on flavour.Storage life of ghee at 38° C. (‘Indian summer temperature’) could be predicted with fair accuracy from its rate of oxidation at 100° C. in a ‘Swift oxidation tester’.


2018 ◽  
Vol 7 (3.13) ◽  
pp. 201
Author(s):  
Mustafa Abdulkadhim ◽  
Salim A.Mohammed Ali ◽  
Sami Hasan

In the recent time, the huge expansion in the application of the real-time applications for smartphones resulted in new difficulties when it is time to develop new protocols for mobile ad-hoc networks (MANETS). Most important within these difficulties is to activate real-time applications for mobile ad-hoc networks which includes quality of service (QoS) support, like bandwidth constraints and stability issues. Adding to this of course the reliability of the nodes as an important factor that has a direct effect on the network performance and data integrity.In this paper we will discussed the QoS main issue that affect several factors in the mobile ad hoc networks, which is the reliability. Because of the fact that the reliability and the availability of the nodes can be interacted made me use both the terms throughout the paper. we will suggest the efficient multi-path Quality of service routing (EMQR), (EMQR) as a QoS guarantee for the stability and reliability issues in the network. Next, we will discuss the availability issues as a QoS guarantee and for this we will suggest the best suitable protocol which is “an efficient warning energy aware Cluster head” WEAC as a solution to the availability issue.The two protocols will guarantee the availability and the reliability in MANETs as it is the new direction for routing algorithms design and it is a way to enhance the availability by controlling the Cluster head based on its power level as a metric for availability as in WEAC protocol and the reliability by increasing the reserved bandwidth for the route as mentioned in EMQR protocol.  


2011 ◽  
Vol 1 (2) ◽  
pp. 80-82 ◽  
Author(s):  
E. D PALAGIN ◽  
P. G BYKOVA ◽  
U. M PAKhOMOVA

Generalizing the data on the quality of surface water run-offs on the territory of Samara the authors reveal the main factors influencing the qualitative composition of water run-offs and define the structure of the links between certain parameters. In the course of research representative diagnostic set of parameters for monitoring the composition of water run-offs has been worked out.


2020 ◽  
Author(s):  
Ying Ni ◽  
Chenye Tong ◽  
Limin Huang ◽  
Wenjie Zhou ◽  
Aijun Zhang

Abstract BackgroundAt present, the incidence of RIF reaches 5% -10% during IVF/ICSI assisted pregnancy treatment. RIF causes heavy financial burden and mental stress on patients and families and affects the quality of their lives. This study is aimed to investigate the current status of fertility quality of life (feritility QOL) and explore the factors influencing in patients with repeated implantation failure (RIF), thereby providing scientific basis for effective clinic interventional measures and helping to improve the feritility QOL of RIF patients.MethodsRIF patients were selected from the Reproductive Medical Center of Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine from January 2019 to December 2019. The General information questionnaire, FertiQoL scale, perceived social support scale (PSSS), self-rating anxiety scale (SAS), self-rating depression scale (SDS) were used to analyze the feritility QOL and related factors of RIF patients. ResultsThe total score of feritility QOL of RIF patients is (60.44 ± 11.60). The results of multivariate regression analysis showed that residence, financial difficulties, male infertility, BMI index, depression, family social support are the main factors that influence the feritility QOL of RIF patients (adjusted R2 = 0.762). ConclusionAmong the factors influencing the feritility QOL of RIF patients, residence, financial difficulties, male infertility, BMI index, depression and family social support are the main factors. Therefore, medical practioners should take specific interventional measures to improve the RIF patients’ feritility QOL.


Author(s):  
Ruslan Skrynkovskyy ◽  
◽  
Sviatoslav Kniaz ◽  
Mariana Khmyz ◽  
Yuriy Tyrkalo ◽  
...  

The article presents the main factors influencing the functioning of hotel-restaurant complexes and tourism in Ukraine. It has been established that hotel and restaurant and tourist complexes are included in the structure of the subjects of tourist activity. It was found that in the period 2013– 2019 the volume of services provided by temporary accommodation and catering companies, travel agencies, travel operators, companies providing other services, in particular, booking and related activities, has an unstable dynamic. It was determined that the dynamics of the total number of inbound (foreign), outbound and domestic tourists who were served by tour operators and travel agents by type of tourism was unstable, since the main reason that negatively affected this trend was the economic crisis of 2013–2015 in Ukraine, caused primarily by the instability of the situation in the political sphere. It was determined that in the species classification of tourism, that is, the distribution of tourists who were served by tour operators and travel agents, the highest is the number of outbound tourists traveling outside Ukraine. It was found that the number of domestic tourists is significantly lower than the number of outbound tourists, since on average for 2011–2020 was 23,6 %, and the lowest was in 2019 – 9,4 %, due to the COVID–2019 pandemic, under the influence of which another economic crisis arose not only in Ukraine, but also in the world as a whole. It was found that the proportion of inbound (foreign) tourists in the period 2011–2020 decreased sharply – from 10,6 % in 2010 to 0,5 % in 2020, the reason for which is the decrease in the attractiveness of the tourism industry of Ukraine for foreign tourists. It is noted that the prospects for further research in this direction are the development of a methodological approach to assessing the quality of tourism and hotel and restaurant services.


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