For Assessments of Risks and Damages at Nuclear Power Plants (NPP): A Statistic Method Approach | Chapter 2 | Fundamental Research and Application of Physical Science Vol. 9

 This affiliate discuss about detail of action Methods for Assessments of Risks and Damages at Nuclear Power Plants. Given the rapid expansion of risk evaluation on many fronts, one grant permission ask whether risk appraisal really offers entity new as a scientific answer to new demands created by technology, or either it is only a short-term craze, something old in a new pretense which will quickly disappear. The joined treats under NPP exploitation are also increasing as a result of many artificial and natural circumstances, containing serving as aims for potential targeted radical assaults. For any NPP, accurate evaluations of the mixed risks and damages are required continual, including during the preparation, construction, and movement phases of allure intricately integrated emergency administration system. Here we try to resolve some possible means of NPP risk assessments. Early we foresaw the irradiation doses and agreed risks for population under implementation of Russian Federal Program:" Delineation of a change administration process institutionalizes the actions of appendages of NPP professional staff in making administrative changes that impact the various sources of risk. Development of Russian nuclear energy industrial complex on 2007-2020 age at 10 homeland NPP, that operated in rational non disasters regimes all the while two last decades. But such dossier are absent for NPP, that have been or will be under non prognostic dangers. Only after NPP accidents can the necessary information, incompletely or in full, be assembled. When NPP are placed in few risky conflict zones with extreme levels of potential terrorism dangers, they are subject to intensely negative organic reactions (temblors, tsunamis, etc.) as well as affected ones. Here the using of classic designs of expertise risk NPP appraisals are not correct and often impossible by any means. Some needed having a theme data concede possibility be obtained from primary in essence computer tests of individual NPP accompanying imitation of possible accidents. It allows to plan the conduct for NPP operators and distinguished services under serious NPP accidents or may search out prevent them by any means. Utilization of mixed oxides of uranium and plutonium (MOX fuel) in particularly design reactors is considered individual of the promising directions for further growth of nuclear manufacturing, let alone the challenge of peaceful exercise of the stock of military plutonium.

Author(s) Details:

Alexander Valyaev  ,
Division of Ecological Safety and Radiation Risk, Nuclear Safety Institute of Russian Academy of Sciences, Moscow, Russian Federation.

Gurgen Aleksanyan,
Department of Geophysics, Faculty of Geography and Geology, Yerevan State University, Yerevan, Republic of Armenia.

Alexey Valyaev,
Commercial Development and Industry Partnerships, The University of Sydney, Sydney, Australia.

Oleg Arkhipkin,
Spetslabpribor A, LLP, Almaty, Kazakhstan.

Please see the link here: https://stm.bookpi.org/FRAPS-V9/article/view/11759

Load Damaging Effects of Overloaded Trucks on Federal Highway Pavement Structures in Nigeria | Chapter 12 | Research Developments in Science and Technology Vol. 5

 The study's purpose is to establish Nigeria's present serviceability rating as well as the consequences of overloaded vehicles on load damage. The researchers employed AASHTO (American Association of State Highway and Transportation Officials) methodologies. The highway sections of Lokoja-Abuja, Ilorin-Jebba, and Abakiliki-Ogoja through Mbok highways were chosen for this research, and data was acquired using an axle-load survey, an automated traffic count, and secondary sources. Exosphere Nig. Ltd.'s weigh-in-motion facilities were used to collect traffic data during a four-month period commencing in January 2019. A weigh-in-motion device deployed at survey locations provided the gross vehicle weight (G.V.W.) of all vehicle classifications. To evaluate vehicle overloading, a detailed study of vehicle data was conducted. Haracteristics at the research site Over the network evaluated, the proportion of gross vehicle weight violation ranged from 20% to 94 percent of the axle load distribution. When the overloaded vehicle damage factor (V.D.F.) was compared to the normal V.D.F. across the road networks studied, the difference was between 1.2 and 41.34 times, explaining why Nigerian road pavements deteriorate so fast over their service life. The current serviceability ratings for the Lokoja-Abuja, Ilorin-Jebba, and Abakiliki-Ogoja highways were 3.45, 4.41, and 3.35, respectively, showing deterioration from their baseline levels. For Lokoja-Abuja Road, Ilorin-Jebba Road, and Abakili-ki-Ogoja Road, respectively, the damage index g defined the fractional change of serviceability index is 0.30, 0.35, and 0.43. This ratio describes the loss in serviceability at time t in terms of the projected loss at P.T. = 3.0. The Highway Economic Requirements System (HERS) and AASHTO techniques are combined in a more systematic pavement damage estimation approach. The technique will provide a practical method for evaluating the costs of pavement degradation caused by truck traffic on specific stretches of the road.

Author(S) Details

Olufemi Jacob Oyekanmi
Federal Ministry of Works and Housing, Abuja, Nigeria.

Ejem Agwu Ejem
Department of Transport Management Technology, Federal University of Technology, Owerri, Nigeria.

View Book:- https://stm.bookpi.org/RDST-V5/article/view/6873

Risk Assessment in the Analysis of the Quality of Painting Works | Chapter 05 | Innovations in Science and Technology Vol. 2

 The risks associated with paint and varnish coatings on construction products and structures are discussed. The coating itself, the contact layer, and the substrate are shown as three pieces connected in series in a structural diagram of the reliability of protective and ornamental coatings (plaster). Risk was defined as the probability of an occurrence occurring that would have a negative impact on the paintwork. Furthermore, the risk R was computed as the expected damage Y caused by the coating's breakdown. It has been demonstrated that the likelihood of paint coating adhesive failure is quite low. Depending on the kind of coating, the value of risk as a predicted damage as a result of adhesive breakdown of coatings ranges from 0.068 to 11.18 rubles per 1 m2.

Author(S) Details

V. I. Loganina
Penza State University of Architecture and Construction, Russia.

T. V. Uchaeva
Penza State University of Architecture and Construction, Russia.

View Book:- https://stm.bookpi.org/IST-V2/article/view/5425

A Study of the Weather Variability Influence on Occurrence and Damages of Mononychellus tanajoa Bonder (Acarina: Tetranychidae) on Selected Cassava Varieties in the Lake Zone, Tanzania | Chapter 9 | Cutting-edge Research in Agricultural Sciences Vol. 13

During the dry seasons of 2015 and 2016, a study was undertaken in Tanzania's Lake Zone, which is the country's main cassava producer. Its goal was to determine the impact of weather variables on the incidence of Cassava green mites (CGM), Mononychellus tanajoa, on regularly produced cassava types and the damages they inflict. Cassava is a staple food for 200 million Africans living in poverty, as well as a significant source of employment and revenue, particularly for small and medium-sized businesses. The studies were set up in a Split plot design, with subplots representing varieties and main plots representing localities. Ukiruguru, Ng'ombe, and Kishiri were the three places, with the first two in Misungwi and the third in Kwimba districts. The natural occurrence of M. tanajoa infestation was allowed. In both years, the population of mites and the amount of damage caused by them differed significantly (P0.05) among cultivars, data collecting dates, and locations. In general, the highest population of M. tanajoa was found in Kwimba in 2015 and Ukiruguru in 2016, while the lowest was found in N'gombe in both years. Both seasons, Ukiriguru had the highest root yield. The most susceptible kinds in both years were Liongo Kwimba and Naliendele, whereas Suma and Kyaka were reported to have tolerated/resisted the pest. In all seasons, rainfall, relative humidity, and temperature all played a role in M. tanajoa's survival, propagation, and harm.

Author (S) Details

B. S. Wudil
Department Crop Protection, Bayero University, Kano, P.M.B. 3011, Kano, Nigeria and Department of Crop Science and Horticulture, Sokoine University of Agriculture (SUA), P.O.Box 3005, Morogoro, Tanzania.

G. M. Rwegasira
Department of Crop Science and Horticulture, Sokoine University of Agriculture (SUA), P.O.Box 3005, Morogoro, Tanzania.

A. B. Kudra
Department of Crop Science and Horticulture, Sokoine University of Agriculture (SUA), P.O.Box 3005, Morogoro, Tanzania.

S. Jeremiah
Lake Zone Agricultural Research and Development Institute (LZARDI), Ukiruguru, Lake Zone, P.O.Box 1433, Mwanza, Tanzania.

View Book :- https://stm.bookpi.org/CRAS-V13/article/view/3820

Study on Dynamic Detection of Reinforced Concrete Bridge Damage by Finite Element Model Updating | Chapter 11 | Advanced Aspects of Engineering Research Vol. 15

 The purpose of this research is to detect faults in reinforced concrete bridges using an MMUM mathematical model updating approach based on incomplete test data. A suitable finite element model of a repaired bridge is created. The diagnostics can be used to locate and detect problems in a reinforced concrete bridge. As a result, modal testing techniques were employed to monitor the progress of analytical predictions. In addition, a finite time centred space scheme has been created to solve a set of equations in a bridge model that can easily accommodate finite element matrices. The approach is utilised in this study to detect damage and existing cracks in a restored bridge in real time. The method was put to the test on a repaired bridge at Oued Oumazer, Algeria. Identification approaches have been proven to be capable of detecting the precise location of damaged portions that need to be repaired while avoiding the finite element model's mass, stiffness, and loading errors.

Author (S) Details

Mohammed Lamine Moussaoui
Faculty of Mechanical and Chemical Engineering, University of Sciences and Technology Houari Boumediene, Algiers 16111, Algeria.

Mohamed Chabaat
Faculty of Civil Engineering, University of Sciences and Technology Houari Boumediene, Algiers 16111, Algeria.

Abderrahmane Kibboua
National Earthquake Engineering Research Center (CGS), Hussein Dey, Algiers 16000, Algeria.

View Book :- https://stm.bookpi.org/AAER-V15/article/view/1747