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2020

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Turnover Of Stochastic Inventory Systems., Hassan Ali Soltan Dec 2020

Turnover Of Stochastic Inventory Systems., Hassan Ali Soltan

Mansoura Engineering Journal

Evaluating performance of real inventory systems by using the conventional methods is a complex task because of disengagement of decision variables, especially for networks. Therefore, managers resort to the turnover role (TOR) as a local and aggregate tool. Analytic models of TOR seem to be scarce in the literature. This study developed several TOR models, based on stochastic continuous-review system, starting from completely structured objective functions. Two novel philosophies are highlighted to justify rushing TOR from cost and profitable views. The models include short ones that can be practically applied to abstract stochastic and sophisticated features of the system, The …

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Solar Powered Air Conditioning System Using Rotary Honeycomb Desiccant Wheel., Abdelnabi Bayoumi Kabeel Dec 2020

Solar Powered Air Conditioning System Using Rotary Honeycomb Desiccant Wheel., Abdelnabi Bayoumi Kabeel

Mansoura Engineering Journal

A solar powered air conditioning system using a liquid desiccant is proposed to overcome the latent heat part of the cooling load in the air conditioning system. A solar air heater containing a porous material is used as a heat absorber. In addition, a rotating wheel containing a honeycomb clothes saturated with Calcium Chloride solution, is utilized for the regeneration and absorption processes. Different system parameters are investigated. The effect of airflow rate and solar radiation intensity on the system regeneration and absorption abilities are studied. The obtained results show that the system is highly effective in the regeneration process. …

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Impact Of The Emergency Use Authorization On Ventilator Innovation, Krista Stanislow Dec 2020

Impact Of The Emergency Use Authorization On Ventilator Innovation, Krista Stanislow

Theses

Innovation in the medical device industry is crucial to continuously improve the health and wellbeing of society. The U.S. Food and Drug Administration (FDA) is responsible for ensuring the safety and effectiveness of medical devices on the market while balancing the need for continuous innovation. One way the FDA has tried to support innovation is through the development of the 510(k) pathway, which does not require clinical testing as the safety of the device is determined based on a predicate device. Many companies choose to develop products that can obtain approval through the 510(k) pathway. While the 510(k) pathway is …

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Implementation And Effectiveness Of Extended Monetary Policy Tools: Lessons From The Literature, Grahame Johnson, Sharon Kozicki, Romanos Priftis, Lena Suchanek, Jonathan Witmer, Jing Yang Dec 2020

Implementation And Effectiveness Of Extended Monetary Policy Tools: Lessons From The Literature, Grahame Johnson, Sharon Kozicki, Romanos Priftis, Lena Suchanek, Jonathan Witmer, Jing Yang

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No abstract provided.

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Evaluating Instructional Designs With Mental Workload Assessments In University Classrooms, Luca Longo, Giuliano Orru' Dec 2020

Evaluating Instructional Designs With Mental Workload Assessments In University Classrooms, Luca Longo, Giuliano Orru'

Articles

Cognitive cognitive load theory (CLT) has been conceived for improving instructional design practices. Although researched for many years, one open problem is a clear definition of its cognitive load types and their aggregation towards an index of overall cognitive load. In Ergonomics, the situation is different with plenty of research devoted to the development of robust constructs of mental workload (MWL). By drawing a parallel between CLT and MWL, as well as by integrating relevant theories and measurement techniques from these two fields, this paper is aimed at investigating the reliability, validity and sensitivity of three existing self-reporting mental workload …

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A Bibliographic Survey On Detection Of Covid-19 Patients Using Various Sensors In The Field Of Iot, Rutuja Patil, Akshay Sharma, Divya Bhatia, Mugdha Kulkarni, Yashika Patl Dec 2020

A Bibliographic Survey On Detection Of Covid-19 Patients Using Various Sensors In The Field Of Iot, Rutuja Patil, Akshay Sharma, Divya Bhatia, Mugdha Kulkarni, Yashika Patl

Library Philosophy and Practice (e-journal)

Due to a pandemic situation arising from the past few decades and the covid -19 patients are increasing at the rapid rate. Looking in the near future an IOT model is build which can be useful for people in coming years and allows rapid testing and efficient testing methodologies using various sensors such as Temperature, Respiration, RFID etc which takes various parameters. The study focuses around 412 scientific documents such as Journals, articles, book chapters and Patents in various papers. These documents are extracted from the scopus databases after querying with the keywords related to covid patients and IOT. The …

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The Indian Child Welfare Act’S Application To Civil Commitments Of Indian Children In State Court Proceeding, Courtney Lewis Dec 2020

The Indian Child Welfare Act’S Application To Civil Commitments Of Indian Children In State Court Proceeding, Courtney Lewis

American Indian Law Journal

Currently there is no clear guidance on the Indian Child Welfare Act’s (ICWA) application in the context of a civil commitment proceeding, which generally occurs at the state level. This Article argues that ICWA applies to any state court proceeding for civil commitment of an Indian child if the Indian parent cannot have their child returned upon demand. The plain language of ICWA provides for this reasonable interpretation. ICWA enacts rights for Indian children, their parents, and their tribes when a party seeks the removal of the Indian child for placement in an institution. Without adherence to these rights, an …

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Effect Of Aggregates On Early Age Flexural Strength And Maturity Predictions., A. Heniegal Dec 2020

Effect Of Aggregates On Early Age Flexural Strength And Maturity Predictions., A. Heniegal

Mansoura Engineering Journal

This article discusses early age flexural strength development in concrete, specifically investigating the role of aggregates and their impact in maturity predictions. The maturity method is becoming more widely used by the construction industry to signal when certain construction operations (e.g., opening to traffic or removing formwork) can be performed. In addition, the maturity method is used in various computer programs to simulate how physical properties develop during hydration. The maturity method is based on the concept that strength (or mechanical property development is proportional to the extent of chemical reaction (i.e., hydration) that has taken place. It is commonly …

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Water Availability For Cannabis In Northern California: Intersections Of Climate, Policy, And Public Discourse, Betsy Morgan, Kaitlyn Spangler, Jacob Stuivenvolt-Allen, Christina N. Morrisett, Mark W. Brunson, Shih-Yu Simon Wang, Nancy Huntly Dec 2020

Water Availability For Cannabis In Northern California: Intersections Of Climate, Policy, And Public Discourse, Betsy Morgan, Kaitlyn Spangler, Jacob Stuivenvolt-Allen, Christina N. Morrisett, Mark W. Brunson, Shih-Yu Simon Wang, Nancy Huntly

Biology Faculty Publications

Availability of water for irrigated crops is driven by climate and policy, as moderated by public priorities and opinions. We explore how climate and water policy interact to influence water availability for cannabis (Cannabis sativa), a newly regulated crop in California, as well as how public discourse frames these interactions. Grower access to surface water covaries with precipitation frequency and oscillates consistently in an energetic 11–17 year wet-dry cycle. Assessing contemporary cannabis water policies against historic streamflow data showed that legal surface water access was most reliable for cannabis growers with small water rights ( < 600 m3) and …

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Water Availability For Cannabis In Northern California: Intersections Of Climate, Policy, And Public Discourse, Betsy Morgan, Kaitlyn Spangler, Jacob Stuivenvolt Allen, Christina N. Morrisett, Mark W. Brunson, Shih-Yu Simon Wang, Nancy Huntly Dec 2020

Water Availability For Cannabis In Northern California: Intersections Of Climate, Policy, And Public Discourse, Betsy Morgan, Kaitlyn Spangler, Jacob Stuivenvolt Allen, Christina N. Morrisett, Mark W. Brunson, Shih-Yu Simon Wang, Nancy Huntly

Environment and Society Faculty Publications

Availability of water for irrigated crops is driven by climate and policy, as moderated by public priorities and opinions. We explore how climate and water policy interact to influence water availability for cannabis (Cannabis sativa), a newly regulated crop in California, as well as how public discourse frames these interactions. Grower access to surface water covaries with precipitation frequency and oscillates consistently in an energetic 11–17 year wet-dry cycle. Assessing contemporary cannabis water policies against historic streamflow data showed that legal surface water access was most reliable for cannabis growers with small water rights (m3) and …

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Laminar Free Convection From An Elliptic Tube Placed In A Microplar Fluid With Vertical Plate As A Special Case., F. Mahfouz Dec 2020

Laminar Free Convection From An Elliptic Tube Placed In A Microplar Fluid With Vertical Plate As A Special Case., F. Mahfouz

Mansoura Engineering Journal

In this paper laminar free convection heat transfer from a horizontal isothermal elliptic tube placed in a micropolar fluid with its major axis vertical is investigated. The governing equations basd on the conservation of mass, linear momentum, angular momentum and energey are numerically solved using the Fourier Spectral method. The main controlling parameters, beside the material parameters of the micropolar fluid, are the Rayleigh number, the Prandil number and the elliptic section axis ratio The micropolar fluid parameters are the vortex Viscosity, micro-inertia density and Spin gradient viscosity The results, which were obtained for a range of these parameters, were …

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Response Of Frp Jacket Under Sustained Load And Low Temperature., W. Fahmy, A. Heniegal Dec 2020

Response Of Frp Jacket Under Sustained Load And Low Temperature., W. Fahmy, A. Heniegal

Mansoura Engineering Journal

FRP materials are now increasingly being used in the construction industry. Confinement of circular concrete members using FRP is a popular application. As such, studying the performance of concrete members confined by FRP jackets, under severe weather conditions is quite important for both rehabilitated and new structures in cold climatic conditions. However, no sufficient data on FRP wrapped cylinders subjected to the two conditions combined, as in actual structures, which may have a synergetic effect. Stress level and temperature are two factors that influence creep-strain in composites. Orientation of the fibres is another factor that needs to be considered when …

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On-Line Fault Detection Of Transmission Line Using Artificial Neural Network., Samah El Safty, Hamdy Ashour, Hesien El Dessouki, Mohamed El Sawaf Dec 2020

On-Line Fault Detection Of Transmission Line Using Artificial Neural Network., Samah El Safty, Hamdy Ashour, Hesien El Dessouki, Mohamed El Sawaf

Mansoura Engineering Journal

As the voltage and current waveforms arc deformed due to transient during faults, their patient changes according to the type of fault. The Artificial Neural Network (ANN) c2 then be used for fault detection due to its distinguished behavior in pattern recognition. In order to minimize the structure and timing of the ANN, preprocessing of the voltage and current waveforms was done, The data delivered from a simulated power system using PSCAD (EMTP with cad system) was used for training and testing the ANN. An experimental setup, consists of a 3 phase power supply module and transmission line module, is …

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Effect Of Initial Sag And Tension In Cables On Outcome Responses In Cable Structures., Mohamed Abou El-Saad Dec 2020

Effect Of Initial Sag And Tension In Cables On Outcome Responses In Cable Structures., Mohamed Abou El-Saad

Mansoura Engineering Journal

The main object of this research is concerned about the effect of both initial sag and initial tension in inclined cables on the outcome responses of sonic cable structures , such as cable stayed bridges and guyed towers. A new technique for the choice of the best initial tension in cables depending on an iterative scheme to give the minimum static responses. This technique is termed " optimum outcome response shape'. The static analysis of cable stayed bridges having three spans with single cables in harp, radiating and fan shapes, which represent the most common bridges, and guyed towers, is …

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Design Of Circularly Symmetric 2-D Fir Filters Using A Novel Technique In Calculating The Coefficients Of Mcclellan Transformation., Omar Alheyasat, Saod Alseyab Dec 2020

Design Of Circularly Symmetric 2-D Fir Filters Using A Novel Technique In Calculating The Coefficients Of Mcclellan Transformation., Omar Alheyasat, Saod Alseyab

Mansoura Engineering Journal

In this paper, a novel analytic technique for the design of 2-D zero phase FIR circularly-symmetric filters is presented using the McClellan transformation. By this technique, a direct computation of the coefficients of McClellan transformation is derived by mapping the 2-D circular cutoff contour onto the /-D passband cut off and defining some deviation function, which is then freed to be zero for that contour. Then by comparing all the parameters in the resulting deviation function, one can easily determine the coefficients of McClellan transformation. This technique is formulated to assure that no scaling is needed. The McClellan coefficients in …

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Analysis Of Stand-Alone Micro-Grid With Photovoltaic, Diesel Generators And Sofc., Abeer Galal, Mokhtar Said Dec 2020

Analysis Of Stand-Alone Micro-Grid With Photovoltaic, Diesel Generators And Sofc., Abeer Galal, Mokhtar Said

Mansoura Engineering Journal

Analysis of a hybrid system, comprising of photovoltaic (PV), diesel engine generators (DEGs) and solid oxide fuel cells (SOFCs) is proposed in this study for a stand-alone micro grid. This proposal system is a source for energy in a typical city in Egypt. The component specifications of the hybrid system were discussed. Ammonia (NH3) is a hydrogen supply for the fuel cell is clarified in this work. The hydrogen generating from synthesizing ammonia from nitrogen and hydrogen separated with renewable energy is applied to generate electrical power from the SOFC. In the present paper, the operation plan of the proposed …

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Two Spans Cable Stayed Bridges., Mohamed Abou El-Saad Dec 2020

Two Spans Cable Stayed Bridges., Mohamed Abou El-Saad

Mansoura Engineering Journal

This paper is concerned about the study of two spans cable stayed bridges. Three common types of these bridges as harp, radiating and fan shapes arc considered. The static analysis considering single plane and double planes of cables as the mathematical models is carried out. The variations of pylon height to span of the bridge in all cases, the influence of connections between pylons and deck floor and the arrangements of cables are the major factors of this work. The effect of symmetrical and asymmetrical loads such as, the own weight of all structural elements, traffic load including impact, and …

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Behaviour Of Rubberized Plain And Reinforced Concrete Under Impact., Walid Safwat, Ashraf Heniegal Dec 2020

Behaviour Of Rubberized Plain And Reinforced Concrete Under Impact., Walid Safwat, Ashraf Heniegal

Mansoura Engineering Journal

Utilization of rubber tire waste products in concrete has attracted attention because of energy crisis and the environmental problems. The concrete are postulated to be a potential material especially for construction applications, which are subjected to impact effects such as crash barriers, bridges and roads. In this study, an analysis of rubberized concrete was done by using various proportions of crumb rubber as a replacement of sand by volume [0 %, 15%, 30%, 50% and 100%). The slump for five different mixes was measured. On the other hand twenty plain and reinforced concrete beams with dimensions (10 x 10 x …

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Experimental Based Method For Sizing Photovoltaic Power System Suitable For Cooling Greenhouses., Saad Eskander, H. Noor Dec 2020

Experimental Based Method For Sizing Photovoltaic Power System Suitable For Cooling Greenhouses., Saad Eskander, H. Noor

Mansoura Engineering Journal

This paper presents new method for designing photovoltaic power system (PVPS) suitable for cooling the greenhouses. The designed PVPS is installed at Serw station at cooling cucumber crop. The greenhouse, under test has the geometrical configuration of, 6m length, 4m width and 2m height. The indoor temperature of the greenhouse is 50oc before cooling. This level of temperature has a harmful effect upon the cucumber. Hence, the cooling system must be installed for increasing the mass production of the crop within the greenhouse. PVPS is designed to operate the cooling system contains one blower and a fan, they require electrical …

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Research Productivity Of Library Philosophy And Practice During The Period Of Covid 19, Anwar Muhammad, Tang Zhiwei Dr Dec 2020

Research Productivity Of Library Philosophy And Practice During The Period Of Covid 19, Anwar Muhammad, Tang Zhiwei Dr

Library Philosophy and Practice (e-journal)

The present research purpose is to investigate the publishing trends of LPP during the COVID-19 from 2020 to 2021. The quantitative research design and survey method have been used to retrieve data from the website of LPP with full-text article. The collected data has been analyzed using quantification tools. The parameters were set for this study is the frequency of publication growth, author’s collaborations, degree of author collaboration, papers length, and most productive regions. The data revealed 860 research papers were collected during the COVID-19 era. Where 844 papers were published in 2020 and 16 were published in 2021 as …

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Ҳар Ҳил Материалларнинг Ейилиш Жараёнини Ўрганувчи Қурилма, Nurilla Karimovich Dadaxanov Dec 2020

Ҳар Ҳил Материалларнинг Ейилиш Жараёнини Ўрганувчи Қурилма, Nurilla Karimovich Dadaxanov

Acta of Turin Polytechnic University in Tashkent

Амалиёт ва илмий - тадқиқот ишлари ўрганилганда, ишқаланувчи ва қўзғалувчан кесишмаларни ишдан чиқишига асосий сабаб, уларни ишқаланишдан ейилиши эканлиги кўрил. Машиналаридаги тишли узатмалар ва сирпанувчи сиртларидаги ейилишни ўрганувчи махсус қурилмалар ўрганилди. Лаборатория шароитида фойдаланиш осон бўлган ейилишни ўрганувчи қурилма тавсия қилинган.

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Mechanism To Speed Up Secure Communication Handshakes In Constrained Conditions, Panos Kampanakis, Rupak Chandra Dec 2020

Mechanism To Speed Up Secure Communication Handshakes In Constrained Conditions, Panos Kampanakis, Rupak Chandra

Defensive Publications Series

It is desirable to speed up secure tunnel negotiations in constrained mediums where numerous clients are "competing" to form secure connections to destination servers or endpoints. In support of that objective, techniques are presented herein that minimize the authentication data that is transferred within encrypted tunnel handshakes under constrained conditions where the data can introduce unacceptable slowness or failures. The techniques may apply to Internet of Things (IoT) constrained environments in which bandwidth is sparse and multiple devices are competing for bandwidth. The techniques may also be used on the Internet with post-quantum algorithms, which can introduce unnecessary slowness due …

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Enhanced Network Slicing For Industrial And Energy Protocols, Pascal Thubert, Patrick Wetterwald, Jonas Zaddach, Eric Levy-Abegnoli Dec 2020

Enhanced Network Slicing For Industrial And Energy Protocols, Pascal Thubert, Patrick Wetterwald, Jonas Zaddach, Eric Levy-Abegnoli

Defensive Publications Series

With the development of industry 4.0 and the recent evolution of the substation automation, as prescribed at least by the International Electrotechnical Commission (IEC) 61850 Standard, the network is becoming one of the key element of these trends. Network design and network architecture are becoming more and more complex and leading to challenging problems and issues, such as network security, multiplication of unmanaged broadcast domains, and bandwidth limitations. Recent tools have been introduced to help network engineers visualize different industrial Internet of Things (IIoT) protocol flows and characterizations for devices connected to the network. However, visualization is not enough and …

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Individualized Lifelong Learning And Career Portal, Krishna Chytanya Ayyagari Dec 2020

Individualized Lifelong Learning And Career Portal, Krishna Chytanya Ayyagari

Defensive Publications Series

This disclosure describes a career portal that provides career and job related information to a user based on insights into the learning style, aptitude, and career goals of the user. A recommendation engine includes modules for learning style determination and aptitude determination that utilize user-permitted data, e.g., from the user’s online activity and other data sources, to provide individualized course and career recommendations. A dominant learning style for the user is determined and is utilized together with their career goals to suggest coursework for the user to upgrade their skills. The recommendation engine also suggests suitable job opportunities. The described …

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Interactive Information Retrieval: An Overview, Chetan Sudhakar Sonawane, Anant Madhav Kulkarni, Dr. P. Muthumari. Dec 2020

Interactive Information Retrieval: An Overview, Chetan Sudhakar Sonawane, Anant Madhav Kulkarni, Dr. P. Muthumari.

Library Philosophy and Practice (e-journal)

Information Retrieval (IR) is deal as the interface between the information handler and the framework and the query thus formulated is matched against a keyword indexed in the system whereas in Interactive Information Retrieval (IIR) Human Computer Interaction (HCI) is involved. Although, Interactive Information Retrieval (IIR) is a multidisciplinary field its broad subject is Computer science. Algorithmic kind of IR is still prevalent in Interactive Information Retrieval (IIR), information seeking and information behavior.

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Design And Control Techniques Of The Open-Circuit Subsonic Wind Tunnel With Closed Testing Section, Jamshid Yakhshilikov, Jamshid Inoyatkhodjaev Dec 2020

Design And Control Techniques Of The Open-Circuit Subsonic Wind Tunnel With Closed Testing Section, Jamshid Yakhshilikov, Jamshid Inoyatkhodjaev

Acta of Turin Polytechnic University in Tashkent

This paper will describe the design and control techniques of the open-circuit subsonic wind tunnel with closed testing section (WT) for study purpose. The goal is to design a WT that can be tested at a wind speed of 30 m/s, where the desired cross-sectional area of the test chamber is 0.5x0.5 m. The pressure drop inside the WT has been calculated in order to select one of the available axial fans from the manufacturer’s catalog, and computational fluid dynamics (CFD) was performed to check the result. In order to obtain a smooth airflow in the test section, a proportional …

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Technique Design Of Filter On Surface-Acoustic Waves, Dilmurod Abdujalilovich Davronbekov, Zafar Tulyaganovich Khakimov Dec 2020

Technique Design Of Filter On Surface-Acoustic Waves, Dilmurod Abdujalilovich Davronbekov, Zafar Tulyaganovich Khakimov

Acta of Turin Polytechnic University in Tashkent

The article describes the design of filters on surface acoustic waves (SAWs), which are selective elements and are widely used in blocks, devices and signal processing systems in telecommunications, including wireless communication systems such as cellular, trunking and others. Designs of filters for surfactants are considered, which are divided into two large groups - by functional purpose and by a systematic approach to the synthesis of performance characteristics of filters for surfactants. Optimization algorithms and methods for synthesizing surfactant filters have been developed and improved. An improved technique for the synthesis of a filter based on surface acoustic waves is …

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Method For Obtaining Resource-Saving Air Filtering Materials, Xurramov Gulovich Muxtor Ph.D Docent, Xurramova Sevara Dec 2020

Method For Obtaining Resource-Saving Air Filtering Materials, Xurramov Gulovich Muxtor Ph.D Docent, Xurramova Sevara

Acta of Turin Polytechnic University in Tashkent

Abstract - The article discusses a method of obtaining air filtering material from natural polymer fruits of the luffa plant. The filtering material has better performance characteristics and can replace imported counterparts. The quality of air purification in the filter can be adjusted by the number of wound layers of filter material.

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Problems And Ways Of Solution In Transit Of Automobile Transport Of The Republic Of Uzbekistan, Aziz S. Khalmukhamedov Dec 2020

Problems And Ways Of Solution In Transit Of Automobile Transport Of The Republic Of Uzbekistan, Aziz S. Khalmukhamedov

Acta of Turin Polytechnic University in Tashkent

Maintaining the transit potential of a country is an integral part of the transport program of any country and vital for the economy. Unsatisfactory transit potential negatively affects the economy. Therefore, it is necessary to survey and establish indicators of the country’s transit potential. The determining factor of the country’s transit potential is the level and condition of the country’s highways. Thus, the indicator of the quality of the road - the flatness of the road - can become the main indicator that can be used for a generalized and quick assessment of the characteristics of the country’s transit potential. …

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Calculation Of The Power Of The Undulating Surface Of The Screw Conveyor For Cleaning Lint, Sabrina Mukhamedjanova Dec 2020

Calculation Of The Power Of The Undulating Surface Of The Screw Conveyor For Cleaning Lint, Sabrina Mukhamedjanova

Acta of Turin Polytechnic University in Tashkent

В статье представлены результаты расчета параметров шнекового конвейера с волнистой длиной шнека для транспортировки и очистки хлопка. Представлен аналитический метод определения силы вытягивания ворса по волнистой поверхности винта. Значения параметров волнообразной поверхности шнекового транспортера рекомендуются.

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