bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Stock Market Liquidity on Creating Liquidity of Banks Listed in Tehran Stock Exchange
Authors: Karimi Goran
Published: March 2022

In the banking industry, fidelity is of great importance and it can be related to the risks in banking and the performance of banks. Been paid. The purpose of the study is applied studies and the research method is descriptive-analytical. From all the banks listed in Tehran Stock Exchange according to the inclusion criteria during the years 1977 to 2014, they were selected by systematic elimination method. The results show that the stock market liquidity has a positive and significant effect on the liquidity of the banks listed in Tehran Stock Exchange.
Assessment of Home-Based Telemedicine Systems in human resourse management
Authors: Taymoori Morteza , Hossein Khanli Mahsa
Published: March 2022

Telemedicine is essentially “the use of information and telecommunications technologies to provide and support health care services when distance separates the participants. Many product developments have taken place resulting in various medical devices becoming commercially available which may form part of a telemedicine solution. To foster user acceptance of telemedicine technologies, it is important for healthcare consumers to have a positive attitude toward using such systems. A key factor that influence user acceptance is the usability of the telemedicine system. It is critical, for real-world applicability to situate telemedicine applications within the context-specific needs of the people benefiting from or otherwise affected by them. Limited research is conducted in evaluating the usability of such tools from a home based video telemedicine system perspective has been conducted. To address this situation, this study investigates the usability issues associated with four home-based telemedicine software platforms using task performance metrics, and subjective measures. At-home telemedicine visits are quickly becoming an acceptable alternative for in-person patient visits. However, little work has been done to understand the usability of these home-based telemedicine solutions. It is critical for user acceptance and real-world applicability to evaluate available telemedicine solutions within the context-specific needs of the users of this technology. To address this need, this study evaluated the usability of four home-based telemedicine software platforms: Doxy.me, Vidyo,VSee, and Polycom. Statistically significant differences among the telemedicine software platforms were found for task completion time, total workload, mental demand, effort, frustration, preference ranking and computer system usability scores. Usability problems with installation and account creation led to high mental demand and task completion time, suggesting the participants preferred a system without such requirements. Majority of the usability issues were identified at the telemedicine initiation phase. The findings from this study can be used by software developers to develop user-friendly telemedicine systems.
Optimal Management of the Multimedia Application
Authors: Fathi A. , Abduljabbar N.
Published: March 2022

The need for multimedia applications has increased over the years. Due to this issue, image and video compression becoming an essential problem in reducing time and data storage. Fractal Image Compression (FIC) is a compression technique which results in loss, and we can have large amounts of compression. This scheme works by classifying an image into blocks and uses Contractive Mapping. Some of FICs advantages can be expressed as follows: comparing with other standard compression techniques, it has a good interchange between PNSR and compression ratio and it zooms the image without reducing the quality due to its resolution independent nature. The main FICs drawback, is its complexity in encoding and lack of speed.
A mathematical model for P-hub median location problem to multiple assignments between non-hub to hub nodes under fuzzy environment
Authors: Fakhrzad Mohammad Bagher , Golmohammadi, Amir-Mohammad , Bagheri Farzaneh
Published: March 2022

One group of the optimization problems is Hub location problem. Hub facilities are used in transportation network which are provided transfer of products, information, passengers and postal package through of intermediate node instead of direct transfer. One main group of these problems is discrete hub median location that seeks to minimize total transportation cost. In this paper, we present hub median location problem with multiple allocation of non-hub nodes to hub nodes, moreover it is possible to connect non-hub nodes directly with considering a penalty coefficient. The numerical example for CAB25data set -which is related to flow and distance between 25 cities in America- with establishment cost under fuzzy circumstance solved and presented.
Efficient Method to Identify Islanding Condition for Wind Turbine as Distributed Generation
Authors: Ghadimi Hassan , Ebrahimian Homayoun
Published: March 2022

Distributed generation is increasingly likely to play a major role in electricity supply systems. However, the integration of these units at distribution voltages is a major challenge for utilities. One of the problems of distributed generation working connected to the network is the unwanted islanding phenomenon causing physical or financial losses. Islanding is one important concern for grid connected distributed resources due to personnel and equipment safety. Several methods based on passive and active detection scheme have been proposed. While passive schemes have a large non detection zone (NDZ), concern has been raised on active method due to its degrading power quality effect. Reliably detecting this condition is regarded by many as an ongoing challenge as existing methods are not entirely satisfactory. The main emphasis of the proposed scheme is to reduce the NDZ to as close as possible and to keep the output power quality unchanged. In this paper, a developed algorithm is proposed based on passive methods to detect non-islanding protection for wind turbine which is connected to the network. The proposed algorithm is compared with the widely used rate of change of frequency relays (ROCOF) and total harmonic distortion (THD) and found working effectively in the situations where ROCOF and THD fails. The method is on the basis of the decisions of several parameters. These parameters are voltage changes, frequency changes, and active and reactive power changes. Different scenarios with various loads have been used at different wind conditions and many parameters have been studied in these experiments to propose the algorithm. Simulation results have been obtained using MATLAB/SIMULINK software and the effectiveness of the proposed algorithm is shown for the different performances.
Optimization of carbon nano tube field-effect transistors (CNTFET) and compare them to CMOS silicon
Authors: Salimi Mahdi , Khoddam Kamran , Morakkabatchy Darya , Pornadem Maryam
Published: March 2022

In this paper, a brief review of CNT carbon nanotube transistors will be explained and then the optimization methods will be discussed. Details of AC and DC transistor CNFET and Characteristics of CNFET at high temperature also shows that unlike MOSFET flo below the threshold for this type of component temperature is reduced, thus using CNFET at high temperatures can be more quickly and less leakage current is achieved. Processes for the synthesis of CNT are not complete, a subject of controversy in the field fluctuations of density in CNT growth, as well as an analysis of the credit CNFET because sway density of CNT could lead to complete failure CNFET, so to evaluate it, and we later CNFET applications in comparison with CMOS logic circuits using the latest research, we'll CNFET.
The Effects of Near and Far Fault Accelerograms Modification on Seismic Behaviour of Concentrated Braced Steel Frames
Authors: Azim Raheleh , Ghodrati Amiri Gholamreza
Published: March 2022

Steel braces hasve a growing application in building structural and industrial constructions. In the recent years there has been a lot of research done about performance and behavior of these types of structures in elastic and plastic states whos outcomes have been effective on improvement of design criteria and implementation quality of structures. On the other hand since near fault seisms have different properties from those of far fault seisms and issues related to effects of near and far fault have been recently separated in different regulations, seismic behavior of steel constructions designed on the basis of lateral load resisting concentrated bracing system and regulation of designing resisting constructions to seism (Standard No. 800-3rd edition) has been studied in this research. Frames studied are of 5, 10 and 15-floor structues from which one frame has been selected to be studied and time history non-linear dynamic analysis method and effects of two types of near and far fault accelerogram have been used. Values of displacement and floors reverse anchor and base shear in both modified (with scale) and unmodified (without scale) states of near and far fault accelerograms were calculated and the results were compared.
Flood risk assessment in Ardabil valley Shirvan aquiferous zone
Authors: Zamani Tahereh
Published: March 2022

Many people's lives and property are threatened by annually around the world. Thus, it is necessary to identify   areas with flood risk in order to apply systematic management in urban auriferous zones. First, topographic maps and Si valley Shirvan River aquiferous land use was prepared and river basin border was drawn based on these maps, then the river divided to 3 sub-basins and these sub-basins divided to 5 hydrological unit and these units divided to 4 sub- hydrological units, and flood hydrographs were calculated in return periods of 2, 5, 10, 25, 50, 100, respectively. Within the area of S1-1-1 with a length of 3.5 km in Si valley Shirvan River, geometric information of river was obtained. In the next stage, by introduction of flow characteristics and river geometric information and each profile coefficient in HEC_RAS software, water level profile in different return periods was calculated and average level and depth of flood for risk areas was determined. Finally, using flood damages functions, damages were calculated and level-damage curve was drawn. The results showed that damage increase trend of floods with a return period of more than 25 years and average flooding depth greater than 0.52 m is more intense.
Improving energy consuming in WSN using mobile sink
Authors: Gholizadeh Pajeti Ayoub , Farzaneh  Bahalgardi Nazbanuo
Published: March 2022

Wireless sensor networks (WSN) are consisted of many sensors which often are located in harsh and out-of-reach environments. One of the main challenges in WSNs is the limitation of theenergy consumption. One of applied methods for mitigating the energy consumption in these WSNs is to make use of the mobile sink in order to collect data of the sensor nodes from the network. In this research, a new method based on the Genetic Algorithm and fuzzy logic is proposed for reducing the WSN’s energy consumption using the mobile sink. In proposed procedure, the suitable mobile sink’s routing is determined using GA. GA functions based on stop stations position, stop time period and the coverage radius. The evaluation function in GA calculates the GA responses’ quality with phasing the network’s residual energy, amount of data collected and balance of energy consumption between network nodes. The simulation results indicate that the proposed method in different scenarios provides optimal performance in term of motion rout determination and increase in WSN lifetime relative to other existing methods.
Survey of Edward Syndrome Screening in 25-35 Years Old Women with Polycystic Ovarian Syndrome and Treated in the Ardabil City in 2016
Authors: Aghaei Jafar , Farzaneh Dehkordi Farnaz
Published: March 2022

edward syndrome screening in women 35-25 years old with polycystic ovary syndrome. Methodology: The statistical population is pregnant women in ardabil & sampling method is by census women who referred to a gynecologist. A sample of 100 35-25 year-old pregnant women, 50 pregnant women with no problems and 50 pregnant women with polycystic ovary syndrome were considered. The questionnaire contains information such as age, previous history of trisomy in the family and children, taking folic acid, marriage, parenthood, gestational age, history of smoking or alcohol, or take any other medicines, and was completed using interviews and extraction of office patient records. The results of the experiment answers were analyzed and and for data analysis using kolmogorov-smirnov test for normalization of the distribution of data and using pearson correlation test fir evaluate study  hypotheses , the t test and statistical software , spss22,  used in significance level of  05/0≥p .  Results: The results show that average serum papp-a levels in mothers aged 35-25 with polycystic ovary syndrome under treatment in comparison with serum papp-a levels in the 35-25 year-old women with polycystic ovary syndrome and other mothers had a low level. The results show that average free β-hcg levels in mothers aged 35-25 with polycystic ovary syndrome under treatment in comparison with free β-hcg levels in the 35-25 year-old women with polycystic ovary syndrome and other mothers had a low level. The results show that average crl  of mothers with polycystic ovary syndrome in comparison with crl of unaffected mothers for having a  fetus with edwards syndrome has high level. Conclusion: The results show that none of the test used in this study has no chance for fetus affect by edward syndrome.
Soil Pollution and Ways to prevent it in the Management of Urban Space
Authors: Janipour Somayyeh
Published: March 2022

Soil pollution is one of the types of environmental pollution. Soils are as cathartic in nature. In addition to being suppliers of food, it has also refined property. This property can be obtained due to their physical properties, chemical properties and biological properties. One of the major concerns of today's agriculture is soil contaminated with pollutants harmful to human. Soil pollution is as a major environmental problem in the known world. Various sources of pollution such as agricultural pollution, oil pollution, heavy metals, industrial wastes and so reduce the quality of the soil, spread in groundwater levels and the incidence of other environmental problems. However, the lack of proper management of organic waste can lead to the increase of concentration of salts, heavy metals, pathogenic microorganisms, soil pollution, water pollution, agricultural products, fish etc.
The Effects of Iron Fertilization and sulfuric acid Application in Irrigation water on Root Growth and Chemical composition of Bean cultivars in a Calcareous soil
Authors: Jozdaemi Elham , Golchin Ahmad
Published: March 2022

Legumes are main sources of plant proteins for human and animal nourishment. Beans with 20-25% protein, 55-65% carbohydrates and 1-5% lipid play a major role in nutrition of poor nations which are not able to feed ourselves with animal proteins. Thus, increasing yield and quality of beans is an effective way for reducing protein deficiency in developing countries. One of the factors that reduces yield and quality of beans in calcareous soils of Iran is iron deficiency. High pH and calcium and bicarbonate contents of calcareous soils induce leaf choruses which limits plant growth and yield and reduces the quality of beans. To determine the effects of soil and foliar applied iron fertilizers and sulfuric acid on roots of four spotted bean cultivars, a factorial experiment was conducted using a completely randomized design and three replications. The experimental factors were iron fertilizers and bean cultivars. Fertilizer factor included: (a) soil application of ferrous sulfate (25 and 50 mg/kg) and Fe-EDDHA (3 and 6 mg/kg), (b) foliar application of Fe-EDTA(1 and 2 mg/L) and ferrous sulfate (2 and 4 g/L), (3) soil application of sulfuric acid through the irrigation water (2 and 4 g/L) and (4) control (without iron fertilizer).The spotted bean cultivars used in this study were Tallash, Khomein, COS16 and a Local cultivar. The results of this experiment showed that there were significant differences between the effects of soil and foliar applied iron fertilizers and spotted bean cultivars root with respect to root dry and weights. The bean cultivars responded differently to iron fertilization and the highest and the lowest increase in root dry and weights were measured for the local and Khomain cultivars respectively . The results of  the  experiment  showed  that  application  of   sulfuric  acid by irrigation water  at  the  rate  of 4.mg/l increased  the  fresh  and  dry  weight  of  root. The application of sulfuric acid  also  increased the  root  concentrations  of  N, K, P, Fe, Cu, Mn, and  Zn significantly  . The  application  of  soil  and  foliar  applied  iron also  increased  the  root   concentration of  Fe, K, N, P and decreased  the  root  concentration of Cu, Zn, Mn.
Using optimization methods to reduce traffic in urban areas with Bing Map service
Authors: Jafari Hossein , Taghizadeh Alireza , Jafari Faezeh
Published: March 2022

In this paper, car sharing is introduced as a new method for traffic optimization. Car sharing system is a new subject, which is studied in several recent researches. This method finds the best pathway between drivers and passengers by employing controled optimization techniques. The optimized path results in less traffic jam, more people using a vehicle, and finally cheaper and cleaner transportaion for everyone. Car sharing’s main target is to reduce single-seating vehicles as much as possible. That being said, this method tries to oprimize the pathways to find the closest and the most number of passengers for each driver. Eventhough this method is proven very useful worldwide, there has been limited numbers of researchers in Iran studying its reuirement and employment methods inside the country. So, here, car sharing method is discussed by utilizing optimization algorithm within cloud services such as Bing Map. This paper demonstrates how to use such a cloud service to solve car sharing problems. By using this optimizd system, drivers will provide transportation for more numbers of passengers with much shorter trips.
chains and unions of prime submodules
Authors: Shahvalizadeh Yasoub
Published: March 2022

Abstract. Let R be a commutative ring with identity and let M be a unital R-module. In this paper we study the various properties of prime submodules. Also we give a new equivalent conditions for a minimal prime submodules of an R-module to be a finite set, whenever R is a Noetherian ring. Finally we prove the Prime avoidance Theorem for modules in different states.
Application of Artificial Neural Network in Modeling separation of microalgae
Authors: Seyfi Raziye
Published: March 2022

The economization and commercialization of the bio fuels production from microalgae require solving some problems facing it. One of the most important and expensive stages is the separation of microalgae from the medium culture.  The modelling of Separation biological processes can be used as a safe tool to save the economy and avoid repeated testing. Among the methods of modelling, artificial neural network is accurate and widely used in biotechnological processes. Results of the study showed that correlation coefficient reached 1 indicating that there is a good match between actual values and those predicted by modelling. From a total of 18 data, two-thirds of data was used to train a network and the remaining third was used to assess the modelling accuracy. The middle transition function purelin , output transfer function tansig and the number of neurons (five) were determined as the best parameters to train the network. The error rate of network training was estimated to be 0.0511  and error evaluation of the network accuracy was found to be 0.992.
First and second lining vibration design of urban tunnels in Tehran ABAQUS software
Authors: Kasiri Ghahi Mahdi , Sanaeirad Ali
Published: March 2022

Nowadays, a great portion of transportation is being accomplished through underground structures. As such structures are embedded into the ground and there is a remarkable interaction between them and the surrounding soil, very little attention has been paid to the impact of earthquake on these structures. With respect to the increase in rate of transportation as well as decrease in depth to the ground surface, the safety of these structures against earthquake need to be taken into account much more carefully. Due to the importance and diversity of this issue, design of tunnel linings has been widely investigated so far. In this respect, one of the questions that arises in engineers’ minds is regarding the time duration of stresses release after excavation until execution of the concrete lining. Accounting for the stiffness of the permanent lining, in the beginning of the analyses, is so conservative such that in case of soil or rock mass with high overburden,   irrational results will be obtained. The main objectives of this research is to obtain seismic and dynamic results of metro tunnels supported by concrete linings and specify the significant and effective parameters on seismic design of such underground structures.  By means of applying two types of vibration including periodic loads as well as base excitation using accelerograms, the impact of surcharge on seismic response of the lining was studied. Among the results, the maximum displacement was related to the KN60 surcharge. Regarding the effect of soil elasticity modulus on displacements, it can be concluded that increase in this modulus, reduces the displacements and the considerable reduction takes place when the increase is in the range of 20 to 40 MPa. Moreover, increasing the Poisson ratio led to a little increase in dynamic response of the lining
Predicting Effective Factors in Schizophrenia Using Data Mining
Authors: Mavaluru Dinesh , Ramakrishnan Jayabrabu , Mubarakali Azath
Published: March 2022

Data mining is a technique for discovering new knowledge from databases and the use of data mining in medicine is considered one of the most widely used fields of data mining. Schizophrenia is one of the most common illnesses that cause many financial and social damages to society due to the loss of individual performance. In this study, we will examine the most effective fields of predictor in schizophrenia and then predict the age of occurring schizophrenia. In this study, some common classification methods such as support vector machine, decision tree and neural network have been used. The results show that the support vector machine model has more efficiency than other models.
Economic valuation of Heyran telecabin recreational services
Authors: Keivan Behjou Farshad , Khorram Vahid
Published: March 2022

Poppulation growth and urbanization in recent years caused demand increase to utility of recreational services. Heyran telecabin recreational site is one of the most important place at the region and country due to tourism specification. So the study of Heyran telecabin recreational value can be significant to solve effect of this recreational places and tourism development. The aim of this research is the economic valuation of the Heyran telecabin recreational services. Logit model estimates on the maximum likelihood method to study in the effective factors on the people interest over the payment. Demanded data has been collected through questioner of 384 people of visitors from the corresponding forest by use of random sampling method.  The results shows that 83.9 percent of visitors are interested on the payment in order to current forest. Also aducation variables,family size, sexuality, occupation, recommended price and income, have significant effect on the people willingness to pay but age variable, the importance of nature and marriage statue statically is not significant but it contains expected sign. The average of willingness to pay that it estimated about 32546 Rials for each visit.
Investigation the Interaction of Tunnel Structure and Soil in Encountering Earthquake
Authors: Biglari Esfahani Mehran , Zamani Mehdi , Mohammadi Farsani Arash
Published: March 2022

Importance of subterranean structures in no secret to anyone and tunnels are one of the important factors indicating development of countries which are employed for various applications including transportation, water and waste water conveyance and also as a reservoir of various materials, urban subways and …. Established for water providing with the central salt desert, Golah water conveyance tunnel in the length of 10km has been bored employing the full section boring device and it cover is segmental. Tunnel performance will continue perfectly provided that its coating segment can show strength and stability all during their life span and remain in the allowable modifications. Tunnel structure is influenced by the forces resulting from creep and there is a crushed zone between the stony and coating regions. This model has been studied for the MDL and MCL danger levels and a time history analysis has been done to study the tunnel behavior. Intended responses include maximum tunnel diameter in each zone and plastic strain of the concrete as well as damage parameter proportional to the plastic strain. Obtained results revealed that in the second and third zones structure segments with a thickness of 25cm have been modified beyond the maximum limit and fail and that this structure has suffered unrepeatable damage at the MDL danger level and that the highest damages were relevant to the third zone.
Evaluating Simulation and Development of Algorithms of Energy Consumption Reduction Based on Wireless Sensor Networks
Authors: Mykola Trehub , Valerii Khakhula , Andriy Rubets , Demeshchuk Viktor , Воhdan Khakhula
Published: March 2022

Today, wireless sensor networks have been used in many applications according to their benefits such as simple and inexpensive implementation, low power consumption and high scalability. Designing sustainable wireless sensor networks is a very challenging issue. It is expected that sensors with limit energy to work automatically for a long time. However, replacement of broken batteries may be impossible with high costs or even in hard environments. On the other hand, unlike other networks, wireless sensor networks are designed for specific small-scale applications such as medical monitoring systems and large scale such as environmental monitoring. In this context, many researches have been conducted to propose a wide range of solutions for the problem of energy saving. In this paper, a routing algorithm has been designed to generate the best route between sensor nodes and local aggregate nodes for achieving proper traffic distribution and thus balancing the energy consumption of the middle nodes. Creating such a balance will help to increase the lifetime of the network and it will improve the energy consumption pattern in wireless sensor networks with limited power sources. On the other hand, it is attempted to increase the possibility of load distribution at low-density points using the possibility of changing the range of nodes.
Investigation of the relationship between maintenance of the newborn in the family with some family characteristics in the patients referred to the health 52centers of Ardabil in 2017 year
Authors: Mosavi S.F. , Sadegi N.
Published: March 2022

Introduction and purpose: The infancy is one of the most sensitive stages of life which is requiring the suitable recognition and proper care delivery. Since the family is considered as a valuable element  in determining the goals and determining specific needs and carrying out interventions for providing services to infants, the awareness of parents, especially the mother about how to correct behaviour with infant's problems and provide essential care in this per iod can notable contribute to improving infant's health. Therefore, according to this point, it is necessary to examine the families' awareness about the child care standards. The aim of this study was to determine the relationship between family function in the context of infant care standards with some family specifications in the families referred to clinics of  the city of Ardabil in 2017 year. the research method: in this study, 132 families having newborn children referred to the Ardabil city's clinics were studied, which were selected in the available method. The data were collected through a questionnaire whose validity and reliability were also carried out. The data were analyzed by SPSS software. Findings: Out of 132 studies, 60 people (45 %) were girls and 72 (55 %)were boys. the results showed that as family specifications improve, child care standards will increase. As well as their age in family functioning is ineffective in the context of child care, but economic status and birth order variables have an  not effective role in family function. Discussion and conclusion: This study revealed that family function in the context of infant care standards is closely related to some family specifications as well as family specifications are capable of predicting the infant care standards, so as the family specifications increase, child care standards will also increase. Therefore, the most participation of people in respect of infant care is one of their effective means of empowerment, increasing the quality of child care, as well as raising the community health level. The rate of growth in early childhood is very high. The experiences children receive from their surroundings in these years are used as basis and basis for subsequent cross - learning.
A Comparative Study of the Hardness and Force Analysis Methods Used in Truss Optimization with Metaheuristic Algorithms and Under Dynamic Loading
Authors: Aslanova Fidan
Published: March 2022

Increasing the scarcity of raw materials, and the tendency to have light, efficient and inexpensive structures demonstrates the importance of structural optimization. In the optimization process, truss structures are of particular interest due to their high performance in the construction of a variety of structures. The conducted research in this area has produced a great variety of optimization methods, and the researchers emphasize the effectiveness of their proposed method. Considering this issue, summarize and perform a comparative study between optimization methods (classical methods and Metaheuristic Algorithms), analysis methods used in optimization (hardness and force methods) and different optimization loads (static and dynamic loads) is needed to choose the right method and use them more effectively. By examining the research that has been done, it can be noted that the optimizations mentioned above should be compared from many perspectives. In this paper, a decision was made to make a general comparison of the analysis methods used to trusses optimization to provide the basis for further comparisons. In the present study, 19 articles (from 2003 to 2017) have been studied and compared using Metaheuristic algorithms and under dynamic loading in order to compare two methods (hardness and force methods) of analysis in the field of optimization of trusses in terms of optimization types, target function types, constraints and plane and space truss types, and Large-scale trusses, and finally, these two analysis methods were further scrutinized to optimize the 10-member truss plane. The results of this research can be a useful aid for optimization researchers to identify the gaps and deficiencies of truss optimization research.
Overview of the LTE network and removal of unwanted Handover in the network and how to implement it with the ns3 simulator
Authors: Kashani Elaheh
Published: March 2022

Today, cellular networks, notably LTE, are used in substructure communications because of ease of launch, tranquil maintenance, the movable equipment, the communal accessed, and other services. LTE has superior improvement in efficiency, higher data rates, lower time lag, cost savings, capacity, and coverage. How to categorize BTS antennas and handover at the border points are main consequence in these networks. there is possibility to set unessential handover indoors. Also ability to eliminate unnecessary handovers and optimized the networks structure. As a response, several scenarios, such as using the SOM neural network, the X-means clustering algorithm, ICA colonial competition algorithm , and other innovative and meta-innovative algorithms are introduced. Setting up, testing, and evaluating need to a simulated environment. In this research, we tried to examine this type of the LTE network and the its Handover, by analyze the tools’ feature and network simulation languages such as (NS-2, NS-3, OMNET ++), we can present the right choice. Then, we will examine the possibility of implementing LTE and Handover scenarios in NS-3.
The study of welding requirements during construction and installation of seismic-resistant steel structures
Authors: Dmytro STROIANOVSKYI
Published: March 2022

In the last few decades, several horrible earthquakes have unfortunately caused irreparable damages in different parts of our country. The resulting pathology indicates that the damage to the steel structures is mainly due to insufficient resistance and failure in welding fittings. Therefore, extensive research has begun to study seismic behavior and ways to enhance welding fittings. Studies show that the Metallurgical properties of welding metals and the factors that influence the rate of energy absorption and crack growth in this area strongly influence the behavior of the critical fittings of structures. Factors such as solder geometry, weld metal and base metal specifications and welding technology can be mentioned. Given the lack of attention to these important details in the bylaws, the main purpose of this article is to review and compare the requirements of earthquake-resistant structural systems in modern international standards and research.
Microplane modeling of the elasto-viscoplastic constitution
Authors: Saleem Muhammad
Published: March 2022

In this paper, the elasto-viscoplastic Constitutive model is applied within the Microplane framework. The use of strain-dependent models allows measuring the effect of loading speed on the soil. Additionally, rate-based behavior models in simulation modeling avoid the uniqueness of the ruling equation. The proposed model can plot the stress-strain history on plates with different angles inside the soil. Therefore, valuable information can be obtained about the failure plane. Using the Microplane framework enables this hybrid behavior model to predict local strain.
A Vendor Managed Inventory with FIFO and LIFO Plans
Authors: Lau Yui-yip , Mazaheri Arash
Published: March 2022

Nowadays, the stores always want to find a valid plan for perishable products as a challengeable concern for the management of perishable items. As known, regarding the perishable products which have a limitation for consumption, we cannot force the consumers to buy the products which are close to their shelf-life time. To address this challenge, this paper considers a hybrid of FIFO and LIFO strategies and its impact on the profits of the vendor managed inventory contracts which are very little discussion in the literature. Most importantly, this paper deals with an inventory system for perishable products stochastically with a new optimization model. The proposed problem computes the costs of the order and storage with two different holding costs based on the FIFO and LIFO strategies as well as the profits from selling of the products. With a maximizing optimization model, the goal is to find the optimal order for each store in per period. The model is solved by the dynamic programming with backward strategy. The results confirm the applicability and efficiency of the proposed model in this context and the high impact of products’ shelf-life to use the FIFO or LIFO strategies in the stores.
Some classes of complete permutation polynomials in the form of (xpm

− x + δ )
s
+ axpm

+ bx over F
p

2m
Authors: Xu Xiaofang , Fan Jinmei
Published: March 2022

Several classes of complete permutation polynomials (CPPs) in the form of (xpm

− x+ δ )
s
+ axpm

+ bx over F
p

2m
are described in this paper. For fractional exponent s, the permutation properties of the given polynomials are proved by the AGW criterion and for determining the bijectivity of the corresponding piecewise functions. For exponent ssatisfying s= i(pm
− 1) + pj
, the main proofs here depend on the AGW criterion and the quantity of solutions for certain linearised equations. Several results generalise some earlier results on permutation polynomials (PPs).
Can Micro-Housing Policies Enable Higher Liveability Standard in Urban Areas? Case Study of Cascais Historical Centre, Lisbon, Portugal
Authors: Batista Lidiane , Farias Hugo
Published: March 2022

Liveability within urban planning is a necessary prerequisite to the development of micro-housing. Liveability may contribute to improvement of urban environments where micro-homes are prevalent, notably, in highly populated urban areas. After a brief review of the concept, discussion is focused on whether the historic centre of Cascais has liveability standards to facilitate micro housing. The key metrics highlight if such metrics perform the role of determining whether Cascais fulfils the set liveability criteria.
Vertical Extension of a Multi-Storey Reinforced Concrete Building
Authors: Bahrami A. , Deniz S. , Moalin H.
Published: March 2022

The global population is increasing annually; thus, there is a need for more housing and buildings worldwide. As cities grow outward and buildable lands become scarce, it is necessary to increase the height of existing buildings in cities, especially where the height of the buildings is low. For crowded cities, the storey extension is an increasingly popular measure that can meet market demand for centrally located houses. This paper examines the possibility of the vertical extension of an existing (reference) reinforced concrete building in Gävle in Sweden. The StruSoft FEM-Design program is employed to carry out the research. The building is firstly modelled, analysed and designed completely. Thereafter, a storey extension is conducted vertically. The stresses and utilisation ratios of the load-bearing elements of the reference and extended buildings are assessed. It is found that some of the load-bearing elements of the building after the extension need strengthening. Different practical strengthening solutions are proposed. It is concluded that the building can successfully withstand the vertical extension after applying these proposed solutions. The maximum vertical reaction forces of the reference and extended buildings are obtained and compared. A comparison of the deflections of the buildings is made. The structural stability of the buildings is evaluated as well.
Friction Spot Lap Joining of Aluminum Alloy AA6061 to Pre-Holed and Threaded Carbon Steel AISI 1006
Authors: Ibrahim H.K. , Hussein S.K. , Jadee K.J.
Published: March 2022

This work addresses to joining aluminum alloy AA6061 to carbon steel AISI 1006 sheets using the friction spot joining technique. The steel sheets were pre-holed and threaded with an internal M6 thread. The joining process was carried out by extruding the aluminum through the steel hole and thread using a rotating tool with friction between the tool and aluminum. Three process parameters were used: pre-heating time, rotating speed and plunging depth of the tool, with four levels for each parameter. The results indicated that the two materials joined by a micro-scale mechanical interlock at an interface line of a width ranged between 0.7 to ~ 2.5 mm. The joint’s shear force reached a minimum and maximum value of 2000 and 2500 N, respectively. The plunging depth was the most effective factor affecting the amount of the extruded aluminum and the joint’s shear force.
Thermosensitive Response of a Functionally Graded Cylinder with Fractional Order Derivative
Authors: Lamba Navneet Kumar
Published: March 2022

The present paper deals with thermal behaviour analysis of an axisymmetric functionally graded thermosensitive hollow cylinder. The system of coordinates are expressed in cylindrical-polar form. The heat conduction equation is of time-fractional order 0 < α ≤ 2, subjected to the effect of internal heat generation. Convective boundary conditions are applied to inner and outer curved surfaces whereas heat dissipates following Newton’s law of cooling. The lower surface is subjected to heat flux, whereas the upper surface is thermally insulated. Kirchhoff’s transformation is used to remove the nonlinearity of the heat equation and further it is solved to find temperature and associated stresses by applying integral transformation method. For numerical analysis a ceramic-metal-based functionally graded material is considered and the obtained results of temperature distribution and associated stresses are presented graphically.
Effect of MHD on Unsteady Oscillatory Couette Flow Through Porous Media
Authors: Sharma Bhupendra K. , Sharma Pawan Kumar , Chauhan Sudhir Kumar
Published: March 2022

This paper describes the effects of a magnetic field on unsteady free convection oscillatory systems. When temperature and species concentration fluctuate with time around a non-zero constant, “Couette flow” across a porous medium occurs. The system of non-linear ODEs that governs the flow is solved analytically using the perturbation approach because the amplitude of fluctuations is very tiny. Mean flow and transient velocity, transient concentration, transient temperature, heat transfer, mean skin friction and phase and amplitude of skin friction. All have approximate solutions. The influence of different parameters on flow characteristics has been specified and discussed.
An Extended Finite Difference Method for Singular Perturbation Problems on a Non-Uniform Mesh
Authors: Swarnakar D. , kumar V.Ganesh , Soujanya G.B.S.L.
Published: March 2022

An extended second order finite difference method on a variable mesh is proposed for the solution of a singularly perturbed boundary value problem. A discrete equation is achieved on the non uniform mesh by extending the first and second order derivatives to the higher order finite differences. This equation is solved efficiently using a tridiagonal solver. The proposed method is analysed for convergence, and second order convergence is derived. Model examples are solved by the proposed scheme and compared with available methods in the literature to uphold the method.
‘Per desiderio di farsi onore’: Singers and the Adaptation of Arias in Italian drammi per musica of the Early Eighteenth-Century Italy
Authors: Desler Anne
Published: March 2022

Within the aesthetic framework of the work concept and author-centred approach to music history, the practice of aria substitution in the eighteenth-century Italian dramma per musica has frequently been viewed as hostile interference with the composer’s authorial intention and attributed to singers’ vanity, laziness and ignorance. However, the substitution of both the texts and musical settings of arias constituted the default production practice in a period in which scores were not conceptualised as fixed texts but functioned as performance materials for specific productions. Moreover, the practice of aria substitution was deeply rooted in the socio-cultural context of opera production and the arts consumption practices of the social elite. A manifestation of period preoccupation with displaying and gauging rank and status, it was crucial to singers’ professional success.

Analysing the reasons for the substitution of three specific arias in revivals of settings by both Hasse and Vinci of Metastasio’s Artaserse in 1730 and 1731, this paper accounts for typical scenarios for this practice in opera production. Rather than focusing predominantly on the arias’ musical parameters, it also evaluates their dramatic features, scope for stage action and potential for engaging period audiences. Brief consideration is also given to two unusual drammi per musica of 1734 featuring an exceptionally high number of arie di tempesta.
From ‘insignificant’ bars to significant social relations: Elisabeth Teyber and Laodice's accompagnato in Siroe (1763)
Authors: Pelliccia Emilia , Rzepka Sonia
Published: March 2022

Allowedly, singers of Baroque opera could influence the final musical and dramaturgical shape of the work. In our paper, we will focus on a case study of Hasse's compositional process, which will serve as a platform for presenting the digital outputs of the research project ‘Pasticcio. Ways of Arranging Attractive Operas’. The 1763 version of Hasse's opera Siroe, re di Persia featured the novice Elisabeth Teyber in the role of Laodice, whose dramaturgical weight seems to have been reconsidered several times by the composer, particularly in one instance: The seventh scene of Act I was written out twice by Hasse, once as an accompagnato and once in a secco version. In the first part of this article, the background and reasons for such measures, which carry crucial information regarding compositional practices in Hasse's self-pasticcio, will be discussed. Particular emphasis will be placed on the dramaturgical changes and their presentation in the project's synoptical overview of the textual sources of Siroe. The second part enters into detail about Teyber and her vocal peculiarities, which prompted the composer's new concept of this scene. The third section is devoted to another digital humanities tool, namely the database, which serves to visualise relations between sources, singers and composers and to picture the complexity of 18th-century pasticcio practice.
The Application of the Simplified Speculative Frame Method for Monitoring the Development of the Housing Market
Authors: Brzezicka Justyna
Published: March 2022

This article contributes to research into price dynamics on the real estate market. It proposes a simplified index-based speculative frame method for measuring above-average increases and decreases in real estate prices and monitoring market performance. The theoretical part of the article reviews the literature on the implications of real estate market stability on the economy, monitoring market development, and standard methods for analyzing the housing market with special emphasis on index-based methods. The experimental part of the article presents the results of a study analyzing more than 100,000 transactions on the Warsaw housing market between 2004 and 2015, a period characterized by a considerable increase in house prices. The price dynamics of apartments on the Warsaw real estate market was determined with the use of a time variable. The turning point in the market trend was identified. This article contributes to research into price dynamics on the real estate market.
Banks’ Credit Losses and Provisioning over the Business Cycle: Implications for IFRS
Authors: Malovaná Simona , Tesařová Žaneta
Published: March 2022

This article examines the procyclicality of banks’ credit losses and provisions in the Czech Republic using pre-2018 data and then discusses the implications of the findings for provisioning in stage 3 under IFRS 9. This analysis is possible because the majority of banks seem to have aligned their accounting definitions of default with the regulatory definition before the implementation of IFRS 9. Based on our results, we find significant asymmetries in the Czech banks’ behaviour over the cycle. Firstly, provisioning procyclicality is the strongest in the later contractionary phase and the early recovery phase, while it is non-existent in the early contractionary phase. Secondly, banks with higher credit risk behave more procyclically than their peers with lower credit risk. If this behaviour persists under IFRS 9 and banks do not change their provisioning behaviour from backward to forward-looking, it may lead to a delayed transfer of exposures between stages and aggravate cyclical fluctuations.