bluuebunny/crossref_metadata_2025 huggingface dataset:
The Study of Movement of the Wide Span Tractor-Based Field Machine Unit with Power Method of its Control
Authors: Bulgakov Volodymyr , Kuvachov Volodymyr , Nozdrovický Ladislav , Findura Pavol , Smolinskyi Stanislav , Ihnatiev Yevhen
Published: January 2019

Recently, rapid development of controlled traffic farming convincingly demonstrates the broad prospects of using the wide span tractor-based field machines throughout the world. The issue at hand lies in the fact that having a wide span tractor-based machine with steering-wheel system moving along the tracks of a constant technological track is not a rational option. According to the concept of bridge and rutting agriculture, it is advisable to subordinate the automated means of mechanization to the principles of the functioning of the coordinate transport system in which machines can move only in two mutually perpendicular directions and for implementation of which the field must have strictly defined dimensions. Therefore, a method of power steering similar to a crawler tractor (track-type tractor) can be more efficient in the automatic driving of bridge means of mechanization within the coordinate-transport system than a kinematic control. Furthermore, methodology utilized for selection of design schemes, parameters and operating modes of machine-tractor aggregates can not be used for study of dynamics of the wide span tractor-based field machine. Theoretical study is based on theoretical mechanics, theory of mobile energy facilities, statistical dynamics and theory of automatic control of linear dynamical systems with reproduction of statistically random control and disturbing input effects. Purpose of the research lies in development of a dynamic model of plane parallel motion in the horizontal plane of a wide span tractor-based field machine unit using a power (onboard) method of control, which would allow investigation of impacts of the control parameters and disturbing influences on the controllability and stability of its motion. Mathematical models have been developed and new regularities of the straightforward parallel movement of the wide span tractor-based field machine unit for controlled traffic farming have been obtained. The results obtained allow the validation of new schemes, design parameters and modes of operation with acceptable controllability and stability of movement in the horizontal plane with a power control method of the chassis.
Comparative Study About Different Experimental Layouts Used on Single Point Incremental Forming Process
Authors: Oleksik Mihaela
Published: January 2019

The present paper proposes a comparative study between two of the most used experimental layouts on the single point incremental forming with the advantages and disadvantages of these experimental layouts. After a short presentation of the newest technological opportunities on single point incremental forming, the paper presents a classification of the experimental layouts used on this kind of forming process. The comparative study highlights the advantages and the disadvantages of using the universal milling machines and the industrial robots on single point incremental forming. There are presented the results focused on thinning and forces in the SPIF process.
Development Overview of a Smart Customizable Product
Authors: Stanciu Sergiu Gabriel , Petruse Radu Emanuil , Pîrvu Bogdan-Constantin
Published: January 2019

This paper presents the development phases of a smart product that can be manufactured on a cyber physical production system. The intelligent product’s requirements are defined from the manufacturing perspective and then converted into technical product characteristics. Finally, we refined the technical characteristics to create a functional tablet with customizable hardware functionalities as a customizable product.
Constructive Variants for Personalised Formwork
Authors: Raluca Diaconu
Published: January 2019

The aim of this paper is to explore the possibility of working with a personalized reusable composite formwork in order to obtain architectural shapes for roof and wall elements without material loss. Starting with the analysis of the market needs, the definition of the functions and continuing with the conceptual and technical solution proposals, we created a formwork variant that can be reused for different complex shapes. The researches set on sight different variations of the material used, their thickness and the contact surface given by the support elements.
Production of prebiotics via reactions involving lactose as well as malic acid and citric acid
Authors: Csapó J. , Kiss D. , Albert Cs.
Published: January 2019

Prebiotics are such indigestible food ingredients that enter the colon and serve as nutrient for bifidobacteria and lactobacilli. Since fibres and oligosaccharides are the typical prebiotics, we produced prebiotics in our experiments with the reaction of lactose and malic acid as well as citric acid, where these reactions made use of an appropriate concentration of these substances, had an adequate duration, and were carried out under optimal temperature conditions. We determined the optimal parameters of the reaction, measured the loss of the starting materials as well as the increase in concentration of the end-product, and analysed the total sugar content of the hydrolysed prebiotics after hydrolysis by hydrochloric acid. In vitro experiments were performed to demonstrate our end-product’s resistance to carbohydrate-degrading enzymes, which is a fundamental requirement for a prebiotic so that upon reaching the colon it can serve as nutrient for the probiotic bacteria found there.
A Continuous–Time Markov Chain Modeling Cancer–Immune System Interactions
Authors: Burini Diletta , Angelis Elena De , Lachowicz Miroslaw
Published: January 2019

In the present paper we propose two mathematical models describing, respectively at the microscopic level and at the mesoscopic level, a system of interacting tumor cells and cells of the immune system. The microscopic model is in terms of a Markov chain defined by the generator, the mesoscopic model is developed in the framework of the kinetic theory of active particles. The main result is to prove the transition from the microscopic to mesoscopic level of description.
A particle model reproducing the effect of a conflicting flight information on the honeybee swarm guidance
Authors: Bernardi Sara , Colombi Annachiara
Published: January 2019

The honeybee swarming process is steered by few scout individuals, which are the unique informed on the location of the target destination. Theoretical and experimental results suggest that bee coordinated flight arises from visual signals. However, how the information is passed within the population is still debated. Moreover, it has been observed that honeybees are highly sensitive to conflicting directional information. In fact, swarms exposed to fast-moving bees headed in the wrong direction show clear signs of disrupted guidance. In this respect, we here present a discrete mathematical model to investigate different hypotheses on the behaviour both of informed and uninformed bees. In this perspective, numerical realizations, specifically designed to mimic selected experiments, reveal that only one combination of the considered assumptions is able to reproduce the empirical outcomes, resulting thereby the most reliable mechanism underlying the swarm dynamics according to the proposed approach. Specifically, this study suggests that (i) leaders indicate the right flight direction by repeatedly streaking at high speed pointing towards the target and then slowly coming back to the trailing edge of the bee cloud; and (ii) uninformed bees, in turn, gather the route information by adapting their movement to all the bees sufficiently close to their position.
The Catching up Processes of the Regions of the Visegrad Group Countries
Authors: Lengyel Imre , Kotosz Balázs
Published: January 2019

The majority of Central and Eastern European post‑socialist countries acceded to the European Union in 2004. The integration of these economies to the Union had begun earlier, which was strengthened by grants from the Structural Funds after the accession. One of their aims is to facilitate the catching up processes of less developed regions and their convergence to the average of older member states. In our study1, we examine the success of the catching up processes of the NUTS3 regions in the four Visegrad Group countries (V4), i.e., the Czech Republic, Hungary, Poland and Slovakia, between 2000 and 2014 to the average of the 15 initial member states of the European Union. Is there a process of catching up in each region, and if so, is it at a similar or a highly different rate? We analyze the development of GDP per capita at Purchasing Power Parity, and we examine disparities in the level of catching up using entropy‑based Theil indexes. We provide a detailed analysis of two of the influencing factors of the catching up process of regions. Firstly, we look at whether the catching up process of the regions took place in a similar or very different way compared to the national average. Secondly, we examine how the size of the biggest city of the regions affected catching up, and whether the role of the biggest city of region can be shown.
Government Support and Firm Profitability in Vietnam
Authors: Nguyen Thanh Minh , Tran Tuyen Quang , Do Long Thanh
Published: January 2019

Existing studies on the linkage between government subsidies and firm financial performance often use a mean regression approach and focus mainly on developed countries. To fill the gap, this study, for the first time, considers the impact of government support activities on the profitability of manufacturing SMEs in a developing country, Vietnam. Using an unbalanced panel dataset covering the period 2009–2015, government financial supports show an insignificant linkage with firm profitability when using OLS. However, a fixed‑effect quantile approach reveals that government financial support is negatively related for firms with low profit but is positively related for firms in the high profitability percentile. Our findings also suggest that policymakers should focus on helping start‑ups instead of ineffective, informal firms.
Efficiency of regional innovation policy tools: Support of innovative business in the South Moravian Region
Authors: Kostić Miroslav
Published: January 2019

During 15 years of implementation of the Regional Innovation Strategy of South Moravia, the support of innovative business evolved into a set of interconnected programmes for startups and innovative companies with a potential of growth and foreign expansion. Programmes of the South Moravian Innovation Centre (JIC) facilitate creation and development of technology oriented companies in the region, highly concentrated in prioritised high-tech branches corresponding with specialisation of the regional economy (IT, mechanical engineering etc.). Growth of highly qualified jobs (mainly in R&D) in these companies contributes to the increasing orientation of the region on knowledge intensive branches of economy. Emerging companies supported by the JIC show in average a longer lifespan and growth dynamics than comparable newly established companies in the region without this support. Realisation of the programmes also significantly contributes to building of high quality business environment in the region. Problematic aspects of support to innovative business in the South Moravian Region are linked mainly with poor network of investors able to stimulate faster growth of startups, with low motivation of university students to start their own business or with emerging dichotomy in the support of knowledge intensive businesses concentrated in Brno and insufficiently supported businesses with lower knowledge intensity, also operating in priority branches of the regional economy.
Efficiency of regional innovation policy tools: Support to incoming talents and specialists in the South Moravian Region
Authors: Kostić Miroslav
Published: January 2019

Highly qualified and creative people are the key prerequisite of innovation development of every region. Orientation at the development of talents and inflow of qualified people from abroad gained importance during 15 years of implementation of the South Moravian Regional Innovation Strategy. Through the Internationalisation programme, realised since 2006, the regional authority awards scholarships to students from non-EU countries studying at universities in Brno. A substantial part of supported students remains in the region after graduation, working at highly qualified positions. The SoMoPro programme – a unique support tool from Czech but also from European perspective – contributes to the increase of internationalisation and quality of research conducted in South Moravia. Recognised foreign researchers are motivated to move to Brno especially thanks to the newly built top quality research infrastructure. However, turning their short to mid-term stays into a long-term residence is rather difficult given not sufficiently motivating wages in public R&D in Czechia. The needs of increasing number of foreign researchers and other specialists mainly in private sector are addressed by the Brno Expat Centre. In the last years, the number of clients and consultations provided by the organisation grew continuously. Despite more significant impact of national and international mobility schemes and other influences, the aggregate effect of regional activities supporting inflow and maintaining of foreign talents and specialists leads to the increasing attractiveness of the region and the development of a competitive advantage above the other regions of Czechia. Thus the described regional activities contribute to high shares of foreign students and researchers in the region, placing South Moravia on leading positions among Czech regions.
Parity as a Property of Integers
Authors: Ziobro Rafał
Published: January 2019

Even and odd numbers appear early in history of mathematics [9], as they serve to describe the property of objects easily noticeable by human eye [7]. Although the use of parity allowed to discover irrational numbers [6], there is a common opinion that this property is “not rich enough to become the main content focus of any particular research” [9].

On the other hand, due to the use of decimal system, divisibility by 2 is often regarded as the property of the last digit of a number (similarly to divisibility by 5, but not to divisibility by any other primes), which probably restricts its use for any advanced purposes.

The article aims to extend the definition of parity towards its notion in binary representation of integers, thus making an alternative to the articles grouped in [5], [4], and [3] branches, formalized in Mizar [1], [2].
Anti-Atopic Dermatitis of Purified Bee Venom on Keratinocytes Via Suppression of PAR2, ICAM-1, and IL-6 Expression
Authors: Han Sang Mi , Kim Se Gun , Jang Hye Ri , Woo Soon Ok , Pak Sok Cheon
Published: January 2019

Emerging evidence indicates that inflammation in atopic dermatitis (AD) is associated with immune-mediated abnormalities in the skin. The history and severity of AD are risk factors for dust mite allergy. Bee venom (BV) is used in a complementary medicine to treat various diseases and skin disorders. Purified BV is obtained through electric stunning with a BV collector, without the harming of honeybees, followed by the removal of impurities from the collected BV and lyophilization of the final product. To evaluate the therapeutic potential of purified BV for AD, we investigated the anti-inflammatory effects of BV on house dust mite (Dermatophagoides farinae) antigen-stimulated HaCaT keratinocytes. The results showed that D. farinae induced significant increased levels of protease-activated receptor 2 (PAR2), intercellular adhesion molecule-1 (ICAM-1), and interleukin-6 (IL-6) compared to those in the normal control. However, purified BV inhibited the elevated expression of PAR2, ICAM-1 and IL-6 at the gene and protein levels. Thus, purified BV may have a therapeutic potential for the treatment and management of AD.
Contribution to Bee Fauna (Hymenoptera: Apoidea: Anthophila) of Poland. VI. The Genus Andrena Fabricius, 1775. PART 2
Authors: Wiśniowski Bogdan , Motyka Ewelina , Celary Waldemar , Szczepko Katarzyna
Published: January 2019

The paper presents new records of the following six very rare or scarcely recorded species of short-tongued bees of the genus Andrena Fabricius, 1775 in Poland: A. (Simandrena) congruens Schmiedeknecht, 1883; A. (Taeniandrena) lathyri Alfken, 1899; A. (Simandrena) lepida Schenck, 1861; A. (Poliandrena) polita Smith, 1847; A. (Suandrena) suerinensis Friese, 1884 and A. (Poliandrena) tarsata Nylander, 1848. This is the second contribution concerning the rare species of the genus Andrena Fabricius, 1775 in Poland. The studies were based on museum collections as well as the author’s own collections. During the research, approximately 21,000 specimens of mining bees of the genus Andrena from Poland were identified representing ninety-five taxa. The species discussed in the paper are known from just a few records in the country. The following information is provided for each species: short diagnosis, remarks on general distribution, bionomics, published records from Poland and confirmed Polish records based on studied collections. The text is accompanied by SEM micrographs showing diagnostic characters and distribution maps.
Varroacidal Efficiency of Treatment with Amitraz in Honey Bee Colonies with Brood
Authors: Pohorecka Krystyna , Skubida Piotr , Semkiw Piotr
Published: January 2019

Field trials were conducted to evaluate the effectiveness of amitraz fumigation against Varroa destructor in honey bee colonies with brood. Within this project the following aspects were taken into consideration: strength of colony, the number of treatments, time intervals between treatments and way of its performance. Honey bee colonies with brood were fumigated four times with one tablet of Apiwarol® per each treatment every four, six, eight and ten days. The tablets with amitraz were burned in the electrical device Wakont or directly in hives. In case of amitraz fumigation with Wakont even four treatments reduced infestations of V. destructor to a limited extent, on average from 40 to 61% of mite populations. A similar effectiveness among the treatments has been ascertained regardless of intervals between them. The efficacy of amitraz combustion in hives was slightly higher and statistically significant only after four treatments. Moreover, beyond brood area, the population of worker bees turned out to determine treatment efficacy with amitraz in this form and modes of administration. In honey bee colonies with brood, even four amitraz fumigations do not decrease the level V. destructor infestation to the extent that it is safe for wintered bees.
The Nature of Theology and the Extent of the Atonement
Authors: Holmes Stephen R.
Published: January 2019

This article considers the post-Reformation debates over the extent of the Atonement. It traces the origins of these debates from the articles of the Arminian Remonstrance of 1610 through the declarations of the supporters of the Synod of Dort in 1618-19. The debate is then considered in relation to an English Baptist context, and specifically the exegetical dispute over the meaning of the word ‘all’ in 2 Corinthians 5:14-15 and Romans 3:23-4. Three options are examined and the various difficulties in arbitrating between these various interpretations. Recognising these difficulties, the article goes on to explore the relationship between scriptural exegesis and theology with reference to the formulation of the ecumenical doctrine of the Trinity in the fourth century. It argues that while theology should always attempt to be consistent with the exegetical data on occasion it proves inconclusive, as in the case of the debate over the extent of the atonement. In such cases the role of theology becomes one of mediation as it seeks a way of reading the texts of Scripture that allows them to be heard without contradicting each other. Again, this is illustrated from the fourth century and the Christology of Basil of Caesarea and Gregory of Nyssa. Returning to the question of atonement with this understanding of the task of theology the article seeks to propose a way to reconcile the biblical texts which speak of the atonement as both universal and limited.
The Balfour Declaration: Scottish Presbyterian Eschatology and British Policy Towards Palestine
Authors: Black Alasdair
Published: January 2019

This article considers the theological influences on the Balfour Declaration which was made on the 2 November 1917 and for the first time gave British governmental support to the establishment of a Jewish homeland in Palestine. It explores the principal personalities and political workings behind the Declaration before going on to argue the statement cannot be entirely divested from the religious sympathies of those involved, especially Lord Balfour. Thereafter, the paper explores the rise of Christian Restorationism in the context of Scottish Presbyterianism, charting how the influence of Jonathan Edwards shaped the thought of Thomas Chalmers on the role of the Jews in salvation history which in turn influenced the premillennialism of Edward Irving and his Judeo-centric eschatology. The paper then considers the way this eschatology became the basis of John Darby’s premillennial dispensationalism and how in an American context this theology began to shape the thinking of Christian evangelicals and through the work of William Blackstone provide the basis of popular and political support for Zionism. However, it also argues the political expressions of premillennial dispensationalism only occurred in America because the Chicago evangelist Dwight L. Moody was exposed to the evolving thinking of Scottish Presbyterians regarding Jewish restoration. This thinking had emerged from a Church of Scotland ‘Mission of Inquiry’ to Palestine in 1839 and been advanced by Alexander Keith, Horatius Bonar and David Brown. Finally, the paper explores how this Scottish Presbyterian heritage influenced the rise of Zionism and Balfour and his political judgements.
A review on the dosimetrical and radiobiological prediction of radiation-induced hypothyroidism in radiation therapy of head-and-neck cancer, breast cancer, and Hodgkin’s lymphoma survivors
Authors: Namdar Aysan Mohammad , Mohammadzadeh Mohammad , Okutan Murat , Mesbahi Asghar
Published: January 2019

A review on the radiobiological modeling of radiation-induced hypothyroidism after radiation therapy of head-and-neck cancers, breast cancer, and Hodgkin’s lymphoma is presented. The current review is based on data relating to dose-volume constrains and normal tissue complication probability (NTCP) as a function of either radiobiological or (pre)treatment-clinical parameters. Also, these data were explored in order to provide more helpful criteria for radiobiological optimization of treatment plans involving thyroid gland as a critical normal organ.
Implementation of compensator-based intensity modulated radiotherapy with a conventional telecobalt machine using missing tissue approach
Authors: Tagoe Samuel N. A. , Mensah Samuel Y. , Fletcher John J.
Published: January 2019

Objectives: The present study aimed to generate intensity-modulated beams with compensators for a conventional telecobalt machine, based on dose distributions generated with a treatment planning system (TPS) performing forward planning, and cannot directly simulate a compensator.

Materials and Methods: The following materials were selected for compensator construction: Brass, Copper and Perspex (PMMA). Boluses with varying thicknesses across the surface of a tissue-equivalent phantom were used to achieve beam intensity modulations during treatment planning with the TPS. Beam data measured for specific treatment parameters in a full scatter water phantom with a 0.125 cc cylindrical ionization chamber, with a particular compensator material in the path of beams from the telecobalt machine, and that without the compensator but the heights of water above the detector adjusted to get the same detector readings as before, were used to develop and propose a semi-empirical equation for converting a bolus thickness to compensator material thickness, such that any point within the phantom would receive the planned dose. Once the dimensions of a compensator had been determined, the compensator was constructed using the cubic pile method. The treatment plans generated with the TPS were replicated on the telecobalt machine with a bolus within each beam represented with its corresponding compensator mounted on the accessory holder of the telecobalt machine.

Results: Dose distributions measured in the tissue-equivalent phantom with calibrated Gafchromic EBT2 films for compensators constructed based on the proposed approach, were comparable to those of the TPS with deviation less than or equal to ± 3% (mean of 2.29 ± 0.61%) of the measured doses, with resultant confidence limit value of 3.21. Conclusion: The use of the proposed approach for clinical application is recommended, and could facilitate the generation of intensity-modulated beams with limited resources using the missing tissue approach rendering encouraging results.
Olympus: Sensor Privacy through Utility Aware Obfuscation
Authors: Raval Nisarg , Machanavajjhala Ashwin , Pan Jerry
Published: January 2019

Personal data garnered from various sensors are often offloaded by applications to the cloud for analytics. This leads to a potential risk of disclosing private user information. We observe that the analytics run on the cloud are often limited to a machine learning model such as predicting a user’s activity using an activity classifier. We present Olympus, a privacy framework that limits the risk of disclosing private user information by obfuscating sensor data while minimally affecting the functionality the data are intended for. Olympus achieves privacy by designing a utility aware obfuscation mechanism, where privacy and utility requirements are modeled as adversarial networks. By rigorous and comprehensive evaluation on a real world app and on benchmark datasets, we show that Olympus successfully limits the disclosure of private information without significantly affecting functionality of the application.
Tithonus: A Bitcoin Based Censorship Resilient System
Authors: Recabarren Ruben , Carbunar Bogdan
Published: January 2019

Providing reliable and surreptitious communications is difficult in the presence of adaptive and resourceful state level censors. In this paper we introduce Tithonus, a framework that builds on the Bitcoin blockchain and network to provide censorship-resistant communication mechanisms. In contrast to previous approaches, we do not rely solely on the slow and expensive blockchain consensus mechanism but instead fully exploit Bitcoin’s peer-to-peer gossip protocol. We develop adaptive, fast and cost effective data communication solutions that camouflage client requests into inconspicuous Bitcoin transactions. We propose solutions to securely request and transfer content, with unobservability and censorship resistance, and free, pay-per-access and subscription based payment options. When compared to state-of-the-art Bitcoin writing solutions, Tithonus reduces the cost of transferring data to censored clients by 2 orders of magnitude and increases the goodput by 3 to 5 orders of magnitude. We show that Tithonus client initiated transactions are hard to detect, while server initiated transactions cannot be censored without creating split world problems to the Bit-coin blockchain.
Cross-Coupled Heat and Moisture Transport Part 2/1: Applications in Mechanics
Authors: Andras Szekeres , Balazs Fekete
Published: January 2019

Based on the theory laid down in the Part 1 [1] in this paper we are going to display applications in physics and especially in mechanics. After a short summary on coupled fields in mechanics, we generally analyze the analogies in mechanics. As the most important, the electrical analogy is discussed in details. By the electrical analogy based analytical solution we display the results of the coupled thermo-hygro problem with second sound. Finally, a few experiments are discussed, eg. experiments by electrical analogy, experiment on diffusivities, experiment on relaxation time, experiment on hydroglobe. This latter one leads to the engineering application of the problem.
The Finite Element Analysis of High Precision Positioning System
Authors: František Trebuňa , Jozef Bocko , Miroslav Pástor , Pavol Lengvarský , Erik Prada
Published: January 2019

The paper deals with design and computation of precise positioning mechanism. The aim of mechanism is to transfer applied load without any change of position of parts in question. The stabilization of position is assured by elastic elements connected to reductor which is adjusted into correct position by an actuator. The functionality of mechanism and its stiffness and strength characteristics were checked by the finite element method. The computations were accomplished for prescribed displacement of reductor. On the base of this type of loading the behaviour of the structure was evaluated.
Wave Coupling Analysis in the Elastic Waveguides of Quarter Wavelength Noise Absorbers
Authors: Radoslav Darula , Sergey Sorokin
Published: January 2019

The analytical model of a fluid filled cylindrical shell is used to analyse the wave propagation in the quarter wavelength absorbers. It has been found, that due to the strong fluid-structure interaction, the considerable wave speed reduction can be reached using a compliant shell. Thus via parametric studies, the dimensions of the absorbers are assessed to reach more efficient and compact design. Furthermore, the use of the compliant materials allows treating the fluid to be incompressible, which helps to simplify the calculations.
Seismic Vulnerability Assessment of Single-Story Masonry Buildings in Kurdistan Region - Iraq
Authors: Yaseen Abdulhameed A. , Ahmed Mezgeen S.
Published: January 2019

Although the Kurdistan Region (KR) of Iraq lies in a relatively active seismic zone, most of its buildings have not been designed to resist seismic loads. So, the need to assess the vulnerability of the building stock to damage due to seismic loads will always be a demand. The building environment in the KR had extensively utilized low-rise unreinforced masonry (URM) buildings having one- to two-stories. The single-story buildings constitute about 67% of the total buildings in the region. The study aims to assess these types of buildings (single-story URM buildings) using the analytical fragility analysis approach. For that purpose, buildings in the region were classified and a typical single-story URM building was analytically modelled in TREMURI software. Seismic characteristics of KR were reviewed and based on it, 59 un-scaled ground motion time histories were selected from all parts of the world. Using incremental dynamic analysis, time histories applied to the analytical model and fragility curves were then developed for the different states of damage. The results show that the single-story buildings in the region are highly susceptible to slight and moderate damages under seismic loads; extensive as well as the very heavy damage states are likewise expected to happen in these types of buildings especially in the eastern part of the KR.
School Management Application Using iOS
Authors: Asaad Renas R. , Segerey Rasan Ismael
Published: January 2019

Recently, the mobile application become a big service that’s make users easy manage the data over the server. The Application consist several sections. First section the Front End used is Swift Language in Xcode platform with MySQL and web server. Second section the Back End used is MySQL.  In this paper there are several modules such as Data Entry module, Data Records module. These modules are further divided in to sub modules. That is Class Setup, Student Setup, Teacher Setup, Student Attendance, Subject Setup, Examination Setup and Exam Details are in Data Entry module. Student Details, Teacher Records, Student Attendance are in the Data Records module. These modules give way in managing the organization efficiently. So, this project helps in efficient management of human resource inside the organization. Also, it consumes less time consumption. The main and important benefit of this proposed Application is that it is very much user friendly and accurate. So the employees and the administrators feel so much comfortable to work with it. Also in all the modules the regularly updated information are very much useful when they are extracted.
U-Turning Ant Colony Algorithm for Solving Symmetric Traveling Salesman Problem
Authors: Almufti Saman M. , Shaban Awaz A.
Published: January 2019

This paper provides a new Ant based algorithms called U-Turning Ant colony optimization (U-TACO) for solving a well-known NP-Hard problem, which is widely used in computer science field called Traveling Salesman Problem (TSP). Generally U-Turning Ant colony Optimization Algorithm makes a partial tour as an initial state for the basic conventional Ant Colony algorithm. This paper provides tables and charts for the results obtained by U-Turning Ant colony Optimization for various TSP problems from the TSPLIB95.
Saving Energy Using Local Available Insulation Materials in Erbil
Authors: Ibrahim Ali M. , Ibraheem Ramzi R. , Weli Rizgar B.
Published: January 2019

An experimental study has been carried out to investigate how much energy may be saved through the use of thermal insulation in the walls and roofs of buildings, experimental tests were done to show percentage of saving energy in walls and roofs. The experimental result shows that the maximum energy saving for the walls when using Rockwool as insulation is75.1% but when using of extruding polystyrene (XPS), it is 73.9%. Similarly, for the roof the results are 66.6% and 61.1% respectively. A theoretical method based on annual energy saving using Degree-Day Method, has been employed for Erbil city. The percentage of energy saving using Rockwool, in case of walls is 77.9% for heating, and it is 78% for cooling. In the similar manner the percentage of energy saving for Erbil city is 77.3% for heating, and cooling when using xps, in case of walls but for the roofs the percentage of energy saving is 80.5%  for heating  and cooling when using rock wool and 80.1% when using XPS.
An Improvement of Three Leg Signalized Intersections in Duhok City Kurdistan-Iraq
Authors: Omer Baran R. , Khalid Sherzad W.
Published: January 2019

Nowadays, number of cars increases in Iraqi Kurdistan. Duhok is one of the Iraqi Kurdistan cities where an enormous increase in the number of cars and population is noticed during the last decade. Roads were been mended according to the 1970s plans where the city was small and number of cars was few. Although the city geographically is located in a hilly area and between two mountains, mending roads is a problem of area. Roads in the mentioned city are quite busy due to the high number of cars, traffic jams can be noticed in every corner of the city especially in signalized intersections. The level of service (LOS) in most of the signalized intersections is F or E. in order to lower the high (LOS), a three leg signalized intersection has been chosen to do an improvement on. During the study the number of the cars (Volume) have been enumerated in all lane groups and the results showed that the (LOS) was E in the intersection. As a result, some solutions have been provided according to the site area and the traffic flow. Solutions were geometric changes, cycle time changes or combination in both geometric and cycle time changes. According to the collected data, it was found that level of service was E for WB and SB and for EB was D. Based on data analysis it was found that LOS has not been improved when only one of the mentioned solutions is applied. In order to have the best improvement, the combination between geometric and cycle time length changes are applied. Analysis showed that there was a remarkable improvement in LOS and changed from E to D.
Uji Kelayakan Mesin Frais Type Schaublin 13 Menggunakan Metoda Pengujian Ketelitian Geometrik
Authors: Rikosa Siska Angraini Rikosa , Sumiati Ruzita , Yetri Yuli
Published: January 2019

Mesin Frais termasuk mesin perkakas yang mampu  melakukan banyak variasi bentuk pekerjaan dibandingkan dengan mesin perkakas lainnya. Di bengkel Politeknik Negeri Padang mesin tersebut digunakan untuk keperluan praktek mahasiswa dan untuk proses produk sudah berumur 30 tahun. Benda kerja dari hasil praktek milling mahasiswa kualitasnya kurang baik yaitu adanya penyimpangan dari karakteristik geometri (ukuran, bentuk dan kehalusan). Keakuratan kinerja mesin perkakas sangat penting dalam proses manufaktur sehingga dapat menghasilkan produk yang berkualitas tinggi. Tujuan dilakukan pengujian ini adalah untuk mengetahui besarnya penyimpangan geometrik yang terjadi pada keadaan statik pada mesin perkakas Frais Type Schaublin 13. Penyimpangan ketelitian geometrik suatu mesin dapat diketahui melalui pengujian yang mengacu pada standar yang baku. Pengujian dilakukan dengan membandingkan nilai penyimpangan hasil pengujian yang telah diambil dengan nilai penyimpangan izin menurut standar ISO 1710. Penyimpangan terjadi pada pengukuran kelurusan dan pengukuran kesejajaran. Pada pengukuran kelurusan diperoleh rata-rata penyimpangan ketelitian geometris adalah 0,0267 dan 0,0228 sedangkan penyimpangan maksimum yang diizinkan adalah 0,02 dengan jarak 300 mm. Sedangkan pengukuran kesejajaran didapatkan rata-rata penyimpangan ketelitian geometris mesin adalah 0,0741 dan 0,0783 dan penyimpangan maksimum yang diizinkan adalah 0,025 dengan jarak 300 mm. Pengukuran kesejajaran ketelitian geometris mesin melebihi batas penyimpangan maksimum yang diizinkan. Berdasarkan hasil pengukuran kelurusan dan kesejajaran didapatkan penyimpangan yang melebihi batas yang diizinkan pada mesin yang digunakan. Mesin tersebut seharusnya tidak dipakai untuk pekerjaan-pekerjaan yang memiliki kepresisian yang tinggi, dan sebaiknya diganti dengan mesin yang baru.
A ordem econômica no Brasil: contrariedades a defesa do meio ambiente
Authors: Paffarini Jacopo , Silveira Alexandre Marques
Published: January 2019

O presente estudo tem por objetivo analisar a compatibilidade da ordem econômica no Brasil com o principio da defesa do meio ambiente que está presente no inciso V do artigo 170 da Constituição Federal de 1988. A pergunta que orientará a pesquisa proposta é: como a ordem econômica no Brasil atua sobre a defesa do meio ambiente. Como forma de responder a presente questão, se explorará os desdobramentos da ordem econômica e da crise ambiental a partir das contribuições do sociólogo de Ulrich Beck e por fim se fará um estudo crítico usando como aporte teórico a criminologia crítica e criminologia verde. Para tanto, o método a ser utilizado é o dedutivo que parte de observações gerais para chegar a um objetivo de pesquisa específico. Quanto ao método de procedimento este será o monográfico. Conclui-se que a partir de um estudo crítico, que os mecanismos da ordem econômica e de livre iniciativa no Brasil continuam sendo incompatíveis com a justiça social e a proteção do meio ambiente.
Pemanfaatan Air Limbah Wet Scrubber Flue Gas Desulphurization (FGD) Industri Kertas sebagai Medium Pertumbuhan Spirulina platensis
Authors: Khairunnissa Isni Nur , Asthary Prima Besty , Saepulloh Saepulloh , Mulyani Rahmaniar
Published: January 2019

Proses flue gas desulohurization (FGD) dengan wet scrubber adalah suatu proses untuk menurunkan konsentrasi SOx gas buang hasil pembakaran. Proses inidapat mengatasi polusi udara dengan cara menurunkan emisi gas dan partikel debu sehingga menghasilkan gas buangan yang lebih bersih. Air limbah wet scrubber bersifat asam. Salah satu alternatif pemanfaatan air limbah wet scrubber adalah untuk budidaya mikroalga. Spirulina platensis merupakan mikroalga yang berwarna hijau kebiruan yang mempunyai nilai gizi tinggi. Penelitian ini bertujuan untuk mengetahui potensi air limbah wet scrubber sebagai medium pertumbuhan S. platensis dan untuk mengetahui konsentrasi air limbah yang optimum bagi pertumbuhan S. platensis. Metode yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 5 ulangan. Air limbah wet srubber dengan konsentrasi 0%, 25%, 50%, 75%, dan 100% digunakan sebagai medium pertumbuhan S. platensis. Selama kultivasi, dilakukan pengamatan pH, produksi biomassa, dan kandungan fikosianin. Hasil menunjukkan bahwa air limbah wet scrubber dapat dimanfaatkan sebagai medium pertumbuhan S. platensis. Konsentrasi optimum bagi pertumbuhan S. platensis adalah campuran dari 75% air limbah  wet scrubber dan 25% medium Zarrouk.Kata kunci : air limbah, flue gas desulphurization, wet scrubber, Spirulina platensis Utilization of Wet Scrubber Wastewater from Flue Gas Desuphurization (FGD) of Paper Industry as a Growth Medium for Spirulina platensisAbstractThe flue gas desulohurization (FGD) withwet scrubber is a process to reduce the concentration of SOx of the flue gas from combustion. This process can resolve the air pollution by reducing gas emission and the dust particles in the liquid droplets to produce cleaner flue gas. The wet scrubber wastewater is acidic. An alternative utilization of wet scrubber wastewater is for cultivation of microalgae. Spirulina platensis is bluish-green microalgae containing high nutritional value. The objective of this research is to determine the potential and the optimum concentration of wastewater from wet scrubber as growth medium of Spirulina. platensis. The research method was observation in the laboratory with a completely randomized design (CRD) with 5 treatments and 5 repetitions. The wastewater from wet scrubber with a concentration of 0 %, 25 %, 50 %, 75 %, and 100 % was used as growth medium of S. platensis. During cultivation, pH, biomass production, and pigment phycocyanin were measured. The results indicated that the wastewater of wet scrubber can be utilized as a growth medium of S. platensis. The optimum concentration for the growth of S. platensis is the mixture of 75% of the wastewater from wet scrubber and 25% of medium Zarrouk.Keywords : wastewater, flue gas desulphurization, wet scrubber, Spirulina platensis
Hubungan Asupan Energi, Pengetahuan Gizi dan Aktivitas Fisik dengan Kejadian Overweight pada Anggota Polisi di Polsek Tampan Pekanbaru Tahun 2017
Authors: Rany Novita , Putri Sinta Yuni , Nurlisis Nurlisis
Published: January 2019

Overweight adalah akumulasi lemak yang abnormal atau berlebihan yang berpeluang akan menyebabkan berbagai penyakit dan menimbulkan efek buruk pada seseorang. Kelebihan berat badan (overweight) merupakan faktor resiko penyebab kematian ke-5 di dunia. Overweight dapat menjadi masalah kesehatan individu dari pekerjaan yang berbeda, termasuk polisi, yang bertanggung jawab untuk keamanan publik. Penelitian ini bertujuan untuk mengetahui hubungan asupan energi, pengetahuan gizi dan aktivitas fisik dengan kejadian overweight pada anggota Polisi di Polsek Tampan Pekanbaru tahun 2017. Jenis penelitian yang digunakan dalam penelitian ini adalah cross sectional study. Populasi dalam penelitian ini adalah seluruh anggota Polisi Polsek Tampan Pekanbaru tahun 2017 yang berjumlah 98 orang polisi. Sampel penelitian sebanyak 74 orang. Analisis yang digunakan adalah analisis univariat dan bivariat dengan uji chi-squere. Hasil penelitian menunjukkan nilai untuk asupan energi yaitu (p-value=0,011), pengetahuan gizi (p-value=0,000) dan aktivitas fisik (p-value= 0,015) artinya Hasil penelitian menunjukkan ada hubungan yang bermakna antara asupan energi, pengetahuan gizi, dan aktivitas fisik dengan kejadian overweight (p value <0,05). Sebaiknya instansi Kepolisian Polsek Tampan Pekanbaru memperhatikan kegiatan yang berhubungan dengan aktivitas fisik dan sebaiknya diadakan konsultasi gizi secara rutin.
Determinan Masturbasi pada Remaja di SMA Negeri 3 Tapung Kabupaten Kampartahun 2017
Authors: Warlenda Sherly Vermita , Wahyudi Arief , Siregar Zahra Sumayah
Published: January 2019

Masturbation is the activity of stimulate with touch or sex organs own up and down my leg . It is influenced by a factor of the development of the reproductive organs of growth that occurs in adolescents. Due to change sexual maturity is biologically experienced by teenager is one of the things that can cause teenagers experienced confusion in the face of sexual impulse is by masturbates. This study aims to analyze determinan of masturbation in adolescents public SMA Negeri 3 Tapung Kampar district in 2017. Method this study used a cross sectional. The sample collection in this research be conducted by way of technique stratified random sampling namely high school students which is going to be based on the number of sample were randomly selected a total of desired many as 87 students . Analysis done in univariat and bivariat by test statistic chi-square aimed at independent and to connect between variable. The research results show that 75,9 % of respondents exposed to mass media, 78.2 % of respondents knowledge low, 60,9 % of respondents have people parents are not had a role, 77 % of respondents have leverage their peers an influential.From the test chi-square shows that there are meaningful relations between the media mass (pvalue = 0,001 and or = 6,591 2,126-20,429), knowledge (pvalue = 0,018 and or = or = 4,200 1,405-12,558 ), the role of parents (pvalue = 0,001 and or = 8,533 2,726-26,708 ), and influence their peers (pvalue = 0,005 and or = 5,091 1,713-15,128). The conclusion the results of research 4 variables studied (mass media, knowledge, parent role and peer influence) 4 variable have significant relationship with masturbation and suggestions to make parents more able to establish more intensive communicate with adolescents
Aerosol route to TiO2–SiO2 catalysts with tailored pore architecture and high epoxidation activity
Authors: Smeets Valentin , Boissière Cédric , Sanchez Clément , Gaigneaux Eric M. , Peeters Elise , Sels Bert F. , Dusselier Michiel , Debecker Damien
Published: January 2019

We present the aerosol-assisted sol-gel preparation of hierarchically porous TiO2–SiO2 catalysts having a sphere-like shell morphology and a high Ti dispersion. In order to control the porosity at the micro-, meso- and macro- levels, we use the evaporation-induced self assembly (EISA) of a surfactant, possibly combined with polymer beads as hard templates. These catalysts are tested for the epoxidation of cyclohexene with cumene hydroperoxide as oxidant, and their performance is compared to the reference TS-1 zeolite. The high catalytic performance observed with the catalysts prepared by aerosol stems from their high specific surface area, but also from the short diffusion path length generated by the meso-/macro-pore architecture which provide entryways for bulky reactants and products.
UNSUR SEKSUALITAS YANG DIREPRESENTASIKAN TOKOH NOVEL PASUNG JIWA KARYA OKKY MADASARI: ANALISIS WACANA KRITIS TEUN A. VAN DIJK
Authors: Nurlaily Alfaratna Septi
Published: January 2019

Novel Pasung Jiwa karya Okky Madasari menggambarkan dinamika kehidupan seseorang yang penuh polemik dan selalu diperlakukan tidak adil di dalam kehidupannya, terutama saat dihubungkan dengan seksualitas perempuan. Penelitian ini bertujuan untuk mengungkapkan adanya diskriminasi terhadap nasib perempuan yang berhubungan dengan seksualitas di dalam masyarakat sebagaimana yang direpresentasikan dalam novel Pasung Jiwa. Untuk mewujudkan hal tersebut, penelitian ini menggunakan studi diskursif dan pendekatan kualitatif dengan analisis wacana kritis yang dikembangkan oleh Teun A. van Dijk, terutama dengan melihat tiga dimensi, yaitu dimensi teks, kognisi sosial, dan konteks sosial. Masalah penelitian ini adalah bagaimana unsur seksualitas direpresentasikan dalam novel Pasung Jiwa. Hasil penelitian menemukan bahwa novel Pasung Jiwa adalah sarana kritik pengarangnya terhadap perilaku masyarakat dalam hubungannya dengan seksualitas. Selain itu, wacana seksualitas dimunculkan dalam novel menggambarkan upaya memarjinalkan perempuan.