Tripod Turnstile Machines Performance Analysis for the System Safety and Security without Considering Simultaneous Failures using Reliability Approach

As the crime is increasing day by day around the world. To stop the crime many security gadgets and machines have been developed by various security agencies. The tripod turnstile machine also helps in stopping the crime and restricting the entry of unauthorized person on the premises. In this paper, the aim is to analyze the reliability measures of the two tripod turnstile machines which work in a parallel configuration. In the case of non-functionality of the machine, unauthorized persons may enter into the premises. Due to security and safety reason, organizations install these machines. Hence these machines must be highly reliable in the operation to avoid any unwanted event. In this paper, for the considered system, the transition state diagram has been drawn with the help of the Markov model. The Chapman-Kolmogorov differential equations are developed from the transition state diagram and solved using Laplace transformation. The failure and repair rates are assumed to be constant and follow negative exponential distribution. The system upstate and downstate probabilities are determined. The explicit expression of the system Availability, Reliability and MTTF are also obtained. The sensitivity analysis is also performed to determine which machine affects the system reliability the most.

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A characterization of the negative exponential distribution with application to reliability theory

Journal of Applied Probability ◽

10.2307/3213319 ◽

1981 ◽

Vol 18 (3) ◽

pp. 652-659 ◽

Cited By ~ 2

Author(s):

M. J. Phillips

Keyword(s):

Exponential Distribution ◽

Random Variables ◽

Reliability Theory ◽

The Other ◽

Independent Random Variables ◽

System Availability ◽

Failure Times ◽

Negative Exponential Distribution ◽

Negative Exponential

The negative exponential distribution is characterized in terms of two independent random variables. Only one of the random variables has a negative exponential distribution whilst the other can belong to a wide class of distributions. This result is then applied to two models for the reliability of a system of two modules subject to revealed and unrevealed faults to show when the models are equivalent. It is also shown, under certain conditions, that the system availability is only independent of the distribution of revealed failure times in one module when unrevealed failure times in the other module have a negative exponential distribution.

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A characterization of the negative exponential distribution with application to reliability theory

Journal of Applied Probability ◽

10.1017/s0021900200098442 ◽

1981 ◽

Vol 18 (03) ◽

pp. 652-659 ◽

Cited By ~ 2

Author(s):

M. J. Phillips

Keyword(s):

Exponential Distribution ◽

Random Variables ◽

Reliability Theory ◽

The Other ◽

Independent Random Variables ◽

System Availability ◽

Failure Times ◽

Negative Exponential Distribution ◽

Negative Exponential

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Probabilistic Assessment of Two-Unit Parallel System with Correlated Lifetime under Inspection Using Regenerative Point Technique

10.30699/ijrrs.2.1.2 ◽

2019 ◽

Vol 2 (1) ◽

pp. 5-14

Author(s):

VIJAY VIR SINGH ◽

PRAVEEN KUMAR POONIA

Keyword(s):

Mathematical Formulation ◽

Practical Importance ◽

Joint Probability ◽

General Distribution ◽

Regenerative Point ◽

Negative Exponential Distribution ◽

Parallel Configuration ◽

Regenerative Point Technique ◽

Repair Facility ◽

Negative Exponential

This paper deals with the reliability analysis of a complex system consisting ofa two dissimilar unit’ in a parallel configuration with correlated lifetime distribution. The system stops functioning when both units stop working. Both units are inspected periodically as well as being examined before assigning to repair facility. Under consideration of the system have two states: Normal and failed. Regenerative point technique has been used for the mathematical formulation of the model. The system is analyzed using Laplace transforms to solve the mathematical equations. Reliability, Availability, MTSF, Busy Period of repairmen and Cost-effectiveness of the system has been computed. The computed results have been demonstrated by tables and graphs. The repair time of both the units follows the negative exponential distribution with different parameters in a joint probability density function. The inspection times are assumed to follow the general distribution. Some particular cases of the system have also been derived from seeing the practical importance of the model.

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1989 göçü sonrası Bulgaristan göçmenlerinin yemek kültüründeki değişim

GÖÇ DERGİSİ ◽

10.33182/gd.v4i2.598 ◽

2017 ◽

Vol 4 (2) ◽

pp. 227-245

Author(s):

Cahit Kahraman ◽

İlhan Güneş ◽

Nanae Kahraman

Keyword(s):

Eating Habits ◽

Supply And Demand ◽

Food Culture ◽

Rapid Progress ◽

Canned Food ◽

Product Range ◽

The World ◽

Before And After ◽

Day By Day ◽

Made In

1989 göçü öncesi, dünyada eşzamanlı olarak gittikçe gelişen ve zenginleşen mutfak kültürü, Bulgaristan Türklerini de etkilemiştir. Pazardaki çeşitlilik arttıkça, yemek alışkanlıkları da değişime uğramıştır. Büyük göçten sadece 30-40 sene evvel kısıtlı imkânlar ile sınırlı sayıda yemek çeşidi üretilirken, alım gücünün artmasıyla yemek kültüründe de hızlı gelişmeler olmuştur. Artan ürün çeşitliliği yemeklere de yansımış, farklı lezzetler mutfaklara girmiştir. Göçmen yemekleri denilince hamur işleri, börek ve pideler akla gelir. Ayrıca, göçmenlerin çok zengin turşu, komposto ve konserve kültürüne sahip oldukları da bilinir. Bu çalışma, 1989 öncesi Bulgaristan’ın farklı bölgelerinde yaşayan Türklerin yemek alışkanlıklarına ışık tutmakla birlikte, göç sonrasında göçmen mutfak kültüründe bir değişiklik oluşup oluşmadığını konu almaktadır. Bu amaçla, 1989 yılında Türkiye’ye göç etmiş 50 kişiye 8 sorudan oluşan anket düzenlenmiştir. Bu verilerden yola çıkarak oluşan bulgular derlenmiş ve yeni tespitler yapılmıştır. Ayrıca, Türkiye’nin farklı bölgelerine yerleşen göçmenler, kendi göçmen pazarlarını kurmuşlardır. Bulgaristan’dan getirilen ürünlerin bu pazarlarda satılması böyle bir arz talebin hala devam ettiğine işaret etmektedir.ABSTRACT IN ENGLISHThe Diversity in Cuisine Culture of the Immigrants from Bulgaria After 1989 MigrationThe Cuisine culture that has been developing and getting rich day by day contemporaneously in the world before 1989 migration has also had an impact on Bulgarian Turks. By the increase in diversity in the market, eating habits have changed. While producing a limited number of food types with limited opportunities just some 30 or 40 years before the ‘Big Migration’, there has been a rapid progress in food culture by the help of the increase in purchase power. Enhancing product range has been reflected in food, and different tastes have entered the cuisines. When we say immigrant, the first things that come to our mind are pastry, flan and pitta bread. Moreover, it is also known that immigrants have a very rich cuisine culture of pickle, stewed fruit, and canned food. This study aims both to disclose the eating habits of Turks living in different regions of Bulgaria before 1989 and to determine whether there has been a difference in immigrant cuisine culture before and after the migration. For this purpose, a questionnaire consisting of 8 questions has been administered to 50 people who migrated to Turkey in 1989. The results gathered from these data have been compiled and new determinations have been made. In addition, immigrants that settled in different regions of Turkey have set their own immigrant markets. The fact that the products brought from Bulgaria are being sold in these markets shows that this kind of supply and demand still continues.

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Awareness on Sustainability Perspective among Consumers’ of Tea

Restaurant Business ◽

10.26643/rb.v118i7.7670 ◽

2019 ◽

Vol 118 (7) ◽

pp. 111-116

Author(s):

Dr. M. Ayisha Millath ◽

Dr. K. Malik Ali

Keyword(s):

Sample Size ◽

Positive Relationship ◽

Health Benefits ◽

High Price ◽

Educational Qualification ◽

Lack Of Information ◽

The World ◽

Correlation Result ◽

Day By Day

Tea is an imperative beverage elsewhere in the world. The need and demand for tea are increasing day by day. Tea Association of USA expects continued growth in tea sales due to awareness on its health benefits. There are more than 3000 kinds of tea varieties are there but only four varieties are widely used. The authors investigated the opinion on sustainability perspectives and problems faced by them while they intend to buy. Willing Participants are included in survey with the sample size of 237. The correlation result revealed that there is a positive relationship between educational qualification and sustainability perspectives of tea products among consumers. . It is also found that lack of information and high price were the major problems faced by tea consumers while intend to buy sustainable tea. So the tea manufacturers and processors must throw light on these issues to improve its preference among consumers.

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The Comparison Between the Bayes Estimator and the Maximum Likelihood Estimator of the Reliability Function for Negative Exponential Distribution

Ibn AL- Haitham Journal For Pure and Applied Science ◽

10.30526/2017.ihsciconf.1815 ◽

2018 ◽

pp. 439

Author(s):

Hazim Mansour Gorgees ◽

Bushra Abdualrasool Ali ◽

Raghad Ibrahim Kathum

Keyword(s):

Maximum Likelihood ◽

Maximum Likelihood Estimator ◽

Exponential Distribution ◽

Reliability Function ◽

Bayes Estimator ◽

Likelihood Estimator ◽

Monte Carlo Simulation Technique ◽

Negative Exponential Distribution ◽

Negative Exponential ◽

Better Than

In this paper, the maximum likelihood estimator and the Bayes estimator of the reliability function for negative exponential distribution has been derived, then a Monte –Carlo simulation technique was employed to compare the performance of such estimators. The integral mean square error (IMSE) was used as a criterion for this comparison. The simulation results displayed that the Bayes estimator performed better than the maximum likelihood estimator for different samples sizes.

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The chronicle of COVID-19: possible strategies to curb the pandemic

Current Medicinal Chemistry ◽

10.2174/0929867327666200702151018 ◽

2020 ◽

Vol 27 ◽

Cited By ~ 2

Author(s):

Rajesh Kumar ◽

Seetha Harilal ◽

Abdullah G. Al-Sehemi ◽

Githa Elizabeth Mathew ◽

Simone Carradori ◽

...

Keyword(s):

Life Cycle ◽

Research And Development ◽

Vaccine Development ◽

Therapeutic Strategies ◽

Antiviral Drugs ◽

Limited Data ◽

Social Distancing ◽

The World ◽

Novel Virus ◽

Day By Day

: COVID-19, an epidemic that emerged in Wuhan, has become a pandemic affecting worldwide and is in a rapidly evolving condition. Day by day, the confirmed cases and deaths are increasing many folds. SARS-CoV-2 is a novel virus; therefore, limited data are available to curb the disease. Epidemiological approaches, isolation, quarantine, social distancing, lockdown, and curfew are being employed to halt the spread of the disease. Individual and joint efforts all over the world are producing a wealth of data and information which are expected to produce therapeutic strategies against COVID-19. Current research focuses on the utilization of antiviral drugs, repurposing strategies, vaccine development as well as basic to advanced research about the organism and the infection. The review focuses on the life cycle, targets, and possible therapeutic strategies, which can lead to further research and development of COVID-19 therapy.

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YOGAINTOCLASSROOM PRACTICES:NEED OF THEHOUR

Scholarly Research Journal for Interdisciplinary Studies ◽

10.21922/srjis.v4i36.10001 ◽

2017 ◽

Vol 4 (36) ◽

Author(s):

Jasmeet Bedi

Keyword(s):

21St Century ◽

Mental Stress ◽

Growing Up ◽

Educational Organization ◽

Psychological Performance ◽

The World ◽

Teachers And Students ◽

Classroom Studies ◽

Day By Day

We are living in the world of 21st century which is known as the world of ‘Mental Stress’ in these circumstances, knowledge amplifies day by day. There is a knowledge explosion in the world, hence each and every person tries to get this knowledge by new andmost recent mediasand they also use it. In this direction there is a qualitative growing up in the person for in receipt of knowledge and its use by appreciative. In the same way, we notice the qualitative addition in the educational organization, teachers and students, which are going to get knowledge. In these circumstances teachers and students feel a perplexity. Learner or student of today is not only physically unhealthy but also mentally or emotionally. So it becomes duty or responsibility of a teacher to incorporate such practices in his classroom so that stress, tension, anxiety, frustration etc. of their students reduces which ultimately affect upon their academic as well as socio-psychological performance. The present paper throws light on benefits of yoga into classroom, studies conducted on the same, challenges before a teacher.

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The Indian Yearbook of Comparative Law 2016

10.1093/oso/9780199482139.001.0001 ◽

2018 ◽

Keyword(s):

Environmental Law ◽

Comparative Law ◽

Public Law ◽

Corporate Law ◽

Legal Issues ◽

Reading Materials ◽

The World ◽

Almost All ◽

The Comparative Study ◽

Day By Day

The contributions, by eminent scholars, included in The Indian Yearbook of Comparative Law 2016 discuss the discipline of comparative law in India and is of immense importance for legal scholarship around the globe. Unlike the West, that has covered almost all aspects of law from private to public law matters of national, transnational, and international relevance, not much work has been done in the discipline of Comparative law in India. In view of the countries and people of the world coming closer day by day, the need for the comparative study of law is becoming a sine qua non for participation in almost all transactions among people living across the globe. The attempt made with this volume will not only meet the much-awaited need of having reading materials on comparative law, but will also create a forum for legal scholars around the world to express their views on different aspects of law in comparative perspective. The issues covered her range from comparative legal methods to comparison in different aspects of law in different countries, as well as transnational and international bodies such as European Union and the various bodies of the United Nations. The issues covered include corporate law, constitutional law, human rights, environmental law, globalization, democracy, privatization, and several other contemporary legal issues.

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Ehrenfest urn models

Journal of Applied Probability ◽

10.1017/s0021900200108708 ◽

1965 ◽

Vol 2 (02) ◽

pp. 352-376 ◽

Cited By ~ 25

Author(s):

Samuel Karlin ◽

James McGregor

Keyword(s):

Exponential Distribution ◽

Continuous Time ◽

Random Variables ◽

Independent Random Variables ◽

Urn Models ◽

Time Intervals ◽

Negative Exponential Distribution ◽

Negative Exponential ◽

Random Times

In the Ehrenfest model with continuous time one considers two urns and N balls distributed in the urns. The system is said to be in stateiif there areiballs in urn I, N −iballs in urn II. Events occur at random times and the time intervals T between successive events are independent random variables all with the same negative exponential distributionWhen an event occurs a ball is chosen at random (each of theNballs has probability 1/Nto be chosen), removed from its urn, and then placed in urn I with probabilityp, in urn II with probabilityq= 1 −p, (0 <p< 1).

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