bluuebunny/crossref_metadata_2025 huggingface dataset:
Mapping and Monitoring Erosion-Accretion in an Alluvial River Using Satellite Imagery – The River Bank Changes of the Padma River in Bangladesh
Authors: Billah Mohammad Maruf
Published: September 2018

The Padma river is widely known for its dynamic and disastrous behaviour, and the river has been experiencing intense and frequent bank erosion and deposition leading to the changes and shifting of bank line. In this paper, a time series of Landsat satellite imagery MSS, TM and OLI and TIRS images and are used to detect river bank erosion-accretion and bank line shifting during the study period 1975–2015. This study exhibits a drastic increase of erosion and accretion of land along the Padma river. The results show that from 1975 to 2015, the total amount of river bank erosion is 49,951 ha of land, at a rate of 1,249 ha a−1 and the total amount of accretion is 83,333 ha of land, at a rate of 2,083 ha a−1. Throughout the monitoring period, erosion-accretion was more pronounced in the right part of the river and bank line had been shifting towards the southern direction. The paper also reveals that the total area of islands had been increased significantly, in 2015 there was about 50,967 ha of island area increased from 20,533 ha of island area in 1975, and the results evidence consistency of sedimentation in the river bed.
The Socioeconomic Vulnerability of Coastal Communities to Abrasion In Samas, Bantul Regency, Indonesia
Authors: Choirunnisa Audi Karina , Giyarsih Sri Rum
Published: September 2018

This research was conducted in Srigading and Gadingsari Villages, Samas District, Bantul Regency, the Special Region of Yogyakarta. Both of these villages were selected as the study area because of their high vulnerability to coastal erosion. This research aimed to analyse the physical, social, and economic vulnerability and the capacity of communities in both villages to deal with erosion in Samas Coast using primary and secondary database. According to the results of the physical and socioeconomic scenarios, Srigading has a high vulnerability level, whereas Gadingsari has a low vulnerability level. Meanwhile, the equal scenario results in the same spatial distribution of vulnerability as the aforementioned scenarios. This research also finds that the capacity, which was based on knowledge of coastal erosion and its risk reduction measures, is categorized as medium. This capacity level is shaped by the constantly improved preparedness as communities experience coastal erosions directly.
Selected Modern Methods and Tools for Public Participation in Urban Planning – A Review
Authors: Haklay Muki , Jankowski Piotr , Zwoliński Zbigniew
Published: September 2018

The paper presents a review of contributions to the scientific discussion on modern methods and tools for public participation in urban planning. This discussion took place in Obrzycko near Poznań, Poland. The meeting was designed to allow for an ample discussion on the themes of public participatory geographic information systems, participatory geographic information systems, volunteered geographic information, citizen science, Geoweb, geographical information and communication technology, Geo-Citizen participation, geo-questionnaire, geo-discussion, GeoParticipation, Geodesign, Big Data and urban planning. Participants in the discussion were scholars from Austria, Brazil, the Czech Republic, Finland, Ireland, Italy, the Netherlands, Poland, the United Kingdom, and the USA. A review of public participation in urban planning shows new developments in concepts and methods rooted in geography, landscape architecture, psychology, and sociology, accompanied by progress in geoinformation and communication technologies. The discussions emphasized that it is extremely important to state the conditions of symmetric cooperation between city authorities, urban planners and public participation representatives, social organizations, as well as residents.
Pericardial disease after breast cancer radiotherapy
Authors: Marinko Tanja
Published: September 2018

Background

Breast cancer is the second most common cancer worldwide. Thanks to the modern oncological treatments, disease specific survival has improved throughout the last decades. The number of breast cancer survivors has been increasing, and more and more attention has been paid to the breast cancer treatment side effects. Whereas there are many data regarding ischemic heart disease after radiotherapy for breast cancer, there is not much data in the literature about the incidence and clinical meaning of pericardial disease after breast cancer radiotherapy.

Conclusions

Although radiation-induced pericarditis is the earliest form of radiation-induced cardiovascular disease after irradiation of the heart, it seems that in clinical practice, especially by using modern radiotherapy treatment techniques, it is underdiagnosed because patients are mostly asymptomatic. In some cases, especially in its late form and after multimodal systemic oncological treatment in combination with radiotherapy, it could be presented in severe form and life threatening. Treatment modalities for radiation-induced pericardial diseases are the same as in the non-irradiated population, but in the irradiated patients, surgery may be difficult.
Analisis Karakteristik Pemimpin Yang Dikagumi Oleh Bawahan
Authors: Yuliana Baiturrohma , Widayati Isro Ani
Published: September 2018

Pemimpin adalah sosok yang diandalkan dalam suatu organisasi, tetapi tidak dapat dipungkiri banyak pemimpin yang mendapatkan apresiasi yang tidak selayaknya. Tidak perlu heran jika sosok pemimpin dijadikan indikator baik buruknya suatu organisasi. Kebanyakan mereka berpikir bisa saja menjadi pemimpin yang efektif tanpa harus disukai oleh bawahannya, tetapi tidak demikian, ternyata menjadi orang yang menyenangkan penting bagi kepemimpinan. Tujuan dari penelitian ini adalah untuk mengetahui karakteristik-karakteristik pemimpin yang dikagumi oleh bawahan. Hasil yang didapat dari penelitian ini adalah 20 karakteristik yang diambil penulis dari teori-teori kepemimpinan yang dikemukakan oleh para ahli dan sudah diranking oleh bawahan di Surabaya menunjukkan bahwa setiap karakteristik bisa dikatakan penting dimiliki oleh setiap pemimpin. Jawaban serta alasan yang dikemukakan oleh bawahan tak jauh dari pengalaman masing-masing di dalam organisasinya. Namun dari 20 karakteristik tersebut ada 4 karakteristik yang mendapat ranking teratas, yaitu : jujur, kompeten, bertanggung jawab dan berorientasi kedepan, artinya 4 karakteristik inilah yang paling dikagumi oleh sebagian besar bawahan. Ada pula beberapa bawahan yang menambahkan karateristik lain seperti : mudah bergaul dan agamis.  Kata Kunci : Karakteristik, Pemimpin, Dikagumi, Bawahan
Molecular Iodine-Catalyzed Carbonyl-Olefin Metathesis
Authors: Nguyen Thanh Vinh , Tran Uyen P. N. , Oss Giulia , Breugst Martin , Detmar Eric , Liyanto Kevin
Published: September 2018

The carbonyl-olefin metathesis reaction is a synthetically valuable transformation that could facilitate rapid functional group interconversion and construction of new organic structures. Herein we demonstrate that elemental iodine, a very simple and mild catalyst, can efficiently promote this chemical transformation under mild reaction conditions with excellent outcomes. Our mechanistic studies revealed intriguing aspects of iodine activation mode that could change the previously established perception of catalyst and substrate design for the carbonyl-olefin metathesis reaction.
Gallant geese, fearful flocks? Flock size and heterospecifics alter the escape behaviour of an invasive goose
Authors: Deboelpaep Evelien , Keleman Pieter-Jan , Vanschoenwinkel Bram , Koedam Nico
Published: September 2018

While escape responses are shown to differ in areas with varying levels of human disturbance, it is not known to what extent these reactions depend on the composition of local species assemblages. We investigated variation in three flight response metrics for the invasive Canada Goose (Branta canadensis) in Belgium in three locations with different human accessibility. Results indicate that heterospecific birds and flock size affected flight initiation distances of the Canada Goose, but that these effects are location-specific. Escape responses were most pronounced in the nature reserve with the lowest human accessibility, and highly reduced in the recreational park. This study illustrates that, when buffer zones are being developed, generalising escape behaviour of birds may lead to potentially dangerous overestimations of their tolerance to human disturbance.
SZOK – jako kategoria w dyskusji o przemocy wobec dzieci
Authors: Turczyk Małgorzata
Published: September 2018

SHOCK, as a recurring category that has been present for many years in the discourse on the right of the child/human to freedom from all forms of violence, becomes the focal point around which the considerations of this article are focused. The inspiration for the use of the shock category in education was the process of studying Anton Siemionowicz Makarenko’s Pedagogical Poemate and the analysis of the educational system he created along practical directives for parenting and its pedagogical implications. In the text, a fundamental question is raised about how Makarenko used SHOCK as a tool in the educational process? The text presents an analysis of the SHOCK category based on the behavior of violence against a child and analyzes their pedagogical implications.
Umiejętności geometryczne trzecioklasistów w świetle wyników badań
Authors: Czajkowska Monika , Bugajska-Jaszczołt Beata
Published: September 2018

In the article, it was sought to determine the level of third-graders’ geometry skills on the basis of the available test results of OBUT, K3 and Omnibus. It was indicated that not only might some geometry learning difficulties arise from the specific nature of mathematical concepts, but from the culture of mathematics teaching as well as application of a traditional methodology of this subject. It was highlighted that the students have too little opportunities to manipulate objects and to gain geometrical experiences. Beginning geometry education with planimetrics was questioned as well.
Efektywność nauczania w klasach łączonych na poziomie edukacji wczesnoszkolnej
Authors: Pęczkowski Ryszard
Published: September 2018

This elaboration undertakes the subject of the effectiveness of teaching in multi-grade classes on early school education level. This form of organising the education process, despite considerably quantitive contribution to organising work for the Polish school, it never has been and still is not a subject of particular interest of pedagogical theory and practice. The deliberations presented in this article are the result of empirical studies which have been being performed by the author for twenty years in schools environment functioning in multi-grade classroom system. The research results presented, on the one hand constitute, in the author’s opinion, a substantial complement of knowledge regarding functioning of early school education, and on the other hand, they represent an attempt of verification of a widely spread stereotype referred to the multi-grade classroom system, namely, organising the educational process in multi-grade classes determines low level of pupils’ school achievements who are enrolled in this system. Nothing could be further from the truth and it is proven by the analysis of research results presented in this elaboration.
Strategies for teaching English spelling and reading
Authors: Sorádová Daniela
Published: September 2018

Learning English reading and spelling in a non-native speaking environment is generally practised through drill, repetition and learning by heart. However, in the native speaking environment, there are different approaches applied in order to teach English to beginning learners. Based on the continuous one-month observation of the native English learners and their teachers in Northern Ireland and the non-native English young learners and their teachers in Slovakia, we are going to highlight the main differences in teaching how to read and write between native and non-native English learners from various points of view and suggest accommodations that may be beneficial for non-native learners and their teachers. We are predominantly going to focus on the approach “Phonics” used for teaching young learners how to read and write in the native English speaking environment. Furthermore, we are going to stress the importance of the teaching practice by novice teachers as we consider it the first step in their early teaching career.
THE ESSENCE OF THE CONCEPT OF THE YOUTH SOCIAL ACTIVITY
Authors: Stupak Oksana ,   State Higher Educational Establishment «Donbas State Pedagogical University»
Published: September 2018

The article presents the theoretical analysis and systematization of the approaches to the definition of the «social activity» concept. The definition of «activity» is used as an independent concept in various fields of science, and as an additional element in different systems. In scientific thought the concepts of «active person», «initiative» and «social initiative» etc. are used as the derivatives of the term. The analysis of encyclopedic, psychological and pedagogical literature made it possible to distinguish the following approaches to the concept of «social activity»: as a dynamic personality characteristic that reflects the level of orientation of abilities, knowledge, skills, concentration of volitional and creative efforts of the individual to realize his or her urgent needs, interests, goals; as a way of life, characterized by the ability to act on his or her own, performing a personal beginning in new forms and activities; as the connection of the individual with the social environment through conscious, purposeful interaction of the individual and society taking into account the personal reasons for which people are influencing each other and various socially useful activities. The given essential characteristics of the concept of «social activity» certainly do not cover all aspects of terminological foundations, but act as certain guidelines that in the context of studying the problem of forming youth social activity made it possible to determine social activity as an integrated personal activity in order to initiate, plan, implement the socially useful activities in the communicative social environment, taking into account their own needs, the needs of society and personal qualities that contribute to its implementation. Considering the age of participants, young people need the possibility of self-realization in socially meaningful activities, participation in which gives them confidence in their own strength, the opportunity to acquire personal and social status, important social experience, realize their interests and needs.
An Independent Review of Several Successful Hospital Incident Command System (HICS) Implementations and Lessons Learned
Authors: Bulson Julie
Published: September 2018

US hospitals are required by Joint Commission to utilize a command structure that is compliant with the National Incident Management System (NIMS). Most utilized is the Hospital Incident Command System (HICS) which guides any disaster response. Further, hospitals are required to NIMS guidelines when responding to events that predicate the implementation of disaster plans or protocols - especially when hospital leaders will interact with local, state or federal authorities. These mandates have grown in depth and breadth since all first responder disciplines began to update their local policies, procedures, and education requirements in the post-9/11 preparedness environment. This new environment includes ongoing federal grants designed to increase hospital preparedness and capacity, but with the fund are mandates requiring hospitals to educate staff members in NIMS education and its use. As a result, many hospitals have adopted HICS and NIMS as the general frameworks on which they build disaster plans, education sessions, and disaster drills. While federal and state officials continue to track compliance with federal requirements, there seems to be a gap in tracking use and effectiveness of HICS and NIMS in real-life incidents, whether planned or emergent. This article examines the real-life experiences of one 1,000+ bed Michigan hospital system that used HICS and NIMS during responses to a state funeral, a credible bomb threat, and a helicopter crash
Implementation of Steganographic Model using Inverted LSB Insertion
Authors: Kamat Shubhangi D. , Patil Prof. S.S. , Mali Prof. A.S.
Published: September 2018

The most important thing in this insecure world is the secrecy of everything. In today’s world, any important data costs more than money. Steganography is the technique in which one can hide data as a secrete in selected image. In case of spatial domain, LSB approach is most popular in steganography, where all the LSBs of pixels of image are replaced by the bits of secret data. But the problem is that the secrete can be easily guessed by the hacker and the data is obtained by extracting it from direct LSBs. To make the system more robust and to improve the signal to noise ratio, the conventional LSB insertion method is replaced by inverted LSB technic. The decision to invert or not the LSB depends on combination of the 2nd and 3rd LSB. As not each and every LSB is inverted, it makes the steganalysis very difficult.
Multipurpose Energy Saving Manual Compressor for Artisans in African Countries
Authors: Kwasu Dr.Isaac Ali , Tokan Dr.Aje , Bawa Engr.M A
Published: September 2018

This Research work involves the design, fabrication and testing of a manually operated compressor for use of artisans and small scale vulcanizing activities. The developed machine consists of chain sprocket arrangement to a flywheel attached to a pulley which powers the compressor as well as a storage tank to receive air by foot pedaling. The article is an innovative product to meet the needs of rural African Artisans that uses air compressor for their daily activities . The design is such that the chain sprocket provides the compressor with a driving force in conjunction with the flywheel thereby replacing the prime mover. Prototype pilot test carried out on the developed manual air compressor could generates 10 Psi ie 0.69bar-volume of air in 60 seconds. A new design with better parameter of the machine was done to improve it’s proficiency after testing for broad application even for the handicap Artisans.
Individual and Business Environment: How Effective Interaction Affects SME Development
Authors: Das Supriyo , Kundu Amit
Published: September 2018

Exploring and conceptualizing different aspect of entrepreneurship is top priority of policymakers at present days. Importance of entrepreneurial research is increasing day by day in the present complex and changing business environment. In this regard, it has become absolutely
pertinent to re-examine the mechanism of interaction between environment and personality in entrepreneurial ecosystem to understand its impact on entrepreneurial development on MSME perspectives. Perfect interaction of personality characteristics with institutional variables can lead towards sustainable development. Significant personality characteristics or optimum business environment can’t alone make any difference. It is the magnitude of proper interaction between them which can increase the resultant vector in many folds. An attempt has been made in this paper to identify the significant interaction variables that can create impact during different entrepreneurial growth stage. The research is of a dynamic and multiregional structure and was conducted on the target sample based on the longitudinal study of GEDI (Global Entrepreneurship Development Institute report) report 2012-2016. The study confirms that interaction within ecosystem is complex as well as different in nature for different stage of business. The present study also xplores the intricate situation and developed a suitable model for each stage of business development. The most notable part of this study is considering the heteroscedasticity and autocorrelation of the data. Panel Corrected Standard Error (PCSE) model has been used in our paper. The analysis of the present study indicates the positive and negative interaction variables for each stage of business development that can be used for policy making considering the present situation of the country. Notation Used: In equation [1], [2], [3], i indicates individual Country, t indicates year, indicate Nascent Entrepreneurship Rate, Established Business Ownership Rate and Sustainability. α and β are coefficients and € indicate error term. In equation [4] X represents the explanatory variables, whereas Ω is the covariance matrix for all error terms.
Elvis Has Left the Building: Correlational but Not Causal Relationship between Music Skill and Cognitive Ability
Authors: Sala Giovanni , Gobet Fernand
Published: September 2018

Music training is commonly thought to have a positive impact on children’s cognitive skills and academic achievement. This belief relies on the idea that engaging in an intellectually demanding activity helps to foster overall cognitive function. We here present a meta-analysis of music-intervention studies in children (N = 3,780, k = 204, m = 43). Consistent with the substantial findings in the field of cognitive training, the overall effect size was small (g ̅ = 0.117, p < .001). Moreover, when active controls were implemented, the effect was practically null (g ̅ = 0.032, p = .467) and highly homogeneous (ω2 = 0.000 and τ2 = 0.000). Finally, we observe that several independent research groups have concluded that music skills acquired by training do not generalize to non-music skills via different methodologies. Thorndike and Woodworth’s (1901) common elements theory finds thus further support.
Increasing the awareness of palm oil plantation replanting through farmers training
Authors: Syahza Almasdi , Bakce Djaimi , Asmit Brilliant
Published: September 2018

Palm oil plantation in the Province of Riau has reached the unproductive age and need replanting. Private and government-owned plantation has started the replanting, but plantation community owned. The slow replanting process in smallholders’ palm oil plantation caused by poor knowledge of replanting. This community service objective was to increase the awareness of replanting of palm oil plantation run by smallholders, so it can accelerate the replanting process. We used interactive training method to deliver knowledge related to palm oil plantation replanting. The activity combined indoor and field class to give a better understanding of replanting. The community service activity involved academicians, palm oil practitioners, government institution, and palm oil farmers association. The success of this activity measured by the participant's assessment results through the written test. This training successfully delivered the needed knowledge and experience about palm oil plantation replanting. The knowledge and awareness were expected to accelerate the successful replanting process of palm oil plantation in the Province of Riau.
Herbivory damage in native Alnus nepalensis and invasive Ageratina adenophora
Authors: Balami Sujan , Thapa Lal B
Published: September 2018

There are numbers of invasive and naturalized alien species in Nepal but studies related to herbivory effects on such species are scarce. An issue of debate is whether invasive alien species get benefited by less herbivory damage in their introduced range. In this study, we investigated the level of herbivory damage in Alnus nepalensis in an area invaded by Ageratina adenophora in Nepal. The damage was compared between invasive A. adenophora and native Alnus nepalensis. Results showed that A. adenophora experienced lower level of leaf damage by herbivores than that of A. nepalensis. This indicated that the invasive A. adenophora might have benefited from reduced herbivory damage behind its successful invasion in Nepalese forest. Further studies are needed to confirm whether controlling of herbivores to lessen the damage in native Alnus nepalensis could enhance its competitive ability against Ageratina adenophora in native vegetation of Nepal.Botanica Orientalis – Journal of Plant Science (2017) 11: 7–11
Variation of plant species richness at different spatial scales
Authors: Bhattarai Khem Raj
Published: September 2018

It is now realized that the variation in species richness is influenced by spatial and temporal scales. Pattern and scale are a central focus in ecology and biogeography. The species richness relationship depends on the scale of study and their correlated factors. The broad objective of this review is to elucidate how different scales are correlated with different explanatory variables to generate patterns of species richness. Addressing the problem of scale has both fundamental and applied importance in understanding variation in species richness along gradients. The understanding of pattern, its causes, and consequences is central to our understanding of processes such as succession, community development, and the spread and persistence of species. According to the hierarchical theory of species diversity there are mainly three categories of scales: local, landscape and regional. The local species richness or α-diversity is the diversity of individual stands. The β-diversity or species change is turnover between two elevational bands or between two plots or two sites. The regional or γ-diversity is the total richness of whole mountains or study systems and it has a combined influence from α- and β-diversity. The local species richness is affected by both local-scale processes (e.g., internal interactions) and broad-scale processes (e.g., evolutionary). Different explanatory variables according to the scales of study are necessary to explain variation at different spatial scales. Local factors (e.g., disturbance, grazing and tree cover) have been used to detect variation at a local scale. Generally, topographical factors are used to detect variation in species richness at a landscape scale; whereas climate, water-energy dynamics and historical processes are used to detect variation at a regional scale. However, it is not easy to separate strictly one scale from other because there is no clear boundary between them. The study of the whole elevation gradient from tropical to alpine zone or long latitude is a broad-scale study. The intermediate scale is a study on a local mountain, which covers the subtropical to warm temperate zones. To explain patterns of species richness, a pluralistic body of hypotheses, which incorporates historical, biological and climatic factors, is needed. This is depicted by the strong relationship between climate, biological interactions, and historical processes in influencing variation in species richness at different spatial scales.Botanica Orientalis – Journal of Plant Science (2017) 11: 49–62
Descriptive epidemiology of hepatitis C in individuals referred for specialized HCV care in Newfoundland and Labrador, 1996–2014
Authors: Malebranche Mary , King Dawn , Leonard Jennifer
Published: September 2018

BACKGROUND: Despite growing awareness of the significant burden of disease caused by hepatitis C virus (HCV) infection worldwide, understanding of the epidemiology and demographic distribution of HCV infection in Canada, specifically in Atlantic Canada, is limited. Currently, data on the demographic and clinical profile of HCV-infected individuals in Newfoundland and Labrador is limited. The aim of this study is to address this knowledge gap. Methods: A retrospective cohort study of HCV-positive individuals referred for specialized care in St. John’s, Newfoundland, between 1996 and 2014, was conducted. Descriptive data were obtained through chart review and access to a database consisting of individuals referred for specialized HCV care in St. John’s. Results: During the study period, 767 individuals were referred for specialized HCV care, of whom 714 were included in our analysis. These individuals represent 57.5% of HCV-positive cases identified by the province’s public health department during the same time frame. HCV infection was more common among men (68.2%) and urban dwellers (74.8%). The majority of cases were HCV genotype 1 (52.1%). Intravenous and intranasal drug use were the most common self-reported risk factors for HCV transmission. High loss-to-follow-up rates were found among those referred from the province’s correctional system. Conclusions: This study provides important insights into the demographic and clinical profile of individuals referred for HCV-related care in Newfoundland and Labrador and fills a gap in the current understanding of HCV-positive individuals in this Atlantic province. These findings can help inform future directions for HCV-related health policy, resource allocation, and clinical care initiatives in Newfoundland and Labrador and across Canada.
FILM COOLING OVER A FLAT PLATE WITH COOLANT SUPPLY IN TO TRIANGULAR INDENTATION
Authors: Khalatov А.А. , Panchenko N.A. , Petliak О.О.
Published: September 2018

The modern high-performance gas turbine engines operate at the flow temperatures exceeding the melting temperature of materials, which require the blade cooling. However, the traditional scheme of film cooling is characterized by appearance of secondary vortex structures that destroy the coolant film. From the existing alternative schemes of film cooling, which allow protecting the turbine blades from influence of high temperatures, the scheme with triangular dimples has demonstrated good results in the stationary conditions. This cooling scheme was patented and tested in the Institute of Engineering Thermophysics, National Academy of Sciences of Ukraine. In order to determine the feasibility of such a scheme, it is necessary to consider the effect of the blade rotation influencing the film cooling efficiency. The results are given towards theoretical investigation of the film cooling efficiency of this scheme under rotation conditions. The study was performed using the ANSYS CFX package using SST-turbulence model. The blowing ratio was varied from 0.5 to 2.0. Numerical simulation performed for rotation parameters corresponding to the dominant influence of the Coriolis force – 10, 100 rpm, and centrifugal forces – 3000, 5000 and 7000 rpm. Оn the basis of computer simulation, it has been shown that rotation does not affect weakly the average efficiency of film cooling at Coriolis force, but causes a peak displacement of local adiabatic efficiency, at rotation parameter of 7000 rpm, when there is a distortion of the flow lines.
SPECIFICS OF THE FLOW OF SUPERCRITICAL WATER UNDER CONDITIONS OF MIXED CONVECTION
Authors: Fialko N.М , Nosovskyi V.A. , Sherenkovskiy Ju.V. , Meranova N.O. , Sharaevskyi I.G. , Pioro І.L.
Published: September 2018

A study of the specifics of supercritical water flow under conditions of mixed convection was made on the basis of CFD modeling. The results of comparison of the numerical solutions obtained in the presence and absence of the buoyancy forces are given. It is shown that the influence of Archimedean forces on the flow structure is localized in the central region of tube length. The data of computer modeling of supercritical water flow pattern with the variation of heat flux q on the tube wall are obtained. The dependence of the localization of mixed convection zone from the value of q is established. The change of the local Richardson number in the context of the effect of the localization of buoyancy forces action is analyzed. For the conditions under consideration, the dependence of turbulent transfer intensity on the effect of Archimedean forces is investigated. It is shown that this action causes oppression of turbulent transport, which is most significantly manifested near the wall of the tube.
INCREASE THE EFFICIENCY OF COMPLEX HEAT-RECOVERY SYSTEMS FOR HEATING AND HUMIDIFYING OF BLOWN AIR OF GAS-FIRED BOILERS
Authors: Fialko N. M. , Presich G. A. , Gnedash G. A. , Shevchuk S. I. , Dashkovska I. L.
Published: September 2018

The work is devoted to increase of thermal and ecological efficiency of water-heating gas-fired boilers of municipal heat-power engineering. To improve thermal efficiency, heat-recovery technologies are used in which deep cooling of the exhaust-gases from boilers with the realization of the condensation mode of the heat recovery equipment is ensured. To implement this regime throughout the heating period, it is advisable to use complex heat-recovery systems in which several heat transfer agents are heated with sufficiently different thermal potentials. To enhance the environmental effect when using complex systems, it is possible to carry out combustion air humidifying in them, which contributes to the reduction of NOx emissions to the environment by the boiler plants.

The work suggests improvement of the known complex heat-recovery system for heating and humidifying the blown air by introducing into its comprise an additional element - water heater of chemical water-purification system. Such the technological solution will ensure a reduction in the thermal losses of the boiler plant and improve the operating conditions of the gas ducts of the boiler house by preventing the condensate from falling out of the wet exhaust-gases.

The aim of the work is to investigate the operating parameters of the complex heat-recovery system for heating and humidifying the blown air and preheating the water for chemical water-purification and comparing its basic heatly and humidity characteristics with the corresponding complex system without preheating the water.

The results of the investigations are presented in a wide operating range of the load variation of the water-heating boiler respectively the boiler plant temperature graph and are shown graphically.

The analysis of the obtained data showed that due to the proposed modernization by preheating the water of the chemical water-purification system in the complex heat-recovery system for heating and humidifying the blown air, an increase of coefficient the use heat of fuel of boilers is provided, depending on their load from 11% to 17%. For this improved heat-recovery system with preheating the water of the chemical water-purification system in comparison with the system without such preheating, the total heating capacity of the complex system increases by 1.3÷1.6 times, and the coefficient the use heat of fuel of the boiler  increases by 5.2%.
FEATURES OF THE APPLICATION OF THE IQLAB PROGRAM FOR SOLVING THE INVERSE HEAT CONDUCTION PROBLEM FOR CHROMIUM-NICKEL CYLINDRICAL THERMOSONDES
Authors: Zotov E.N. , Moskalenko A.A. , Razumtseva O.V. , Protsenko L.N. , Dobryvechir V.V.
Published: September 2018

The paper presents an experimental-computational study of the results of using the IQLab program to solve inverse heat conduction problem and restore the surface temperature of cylindrical thermosondes from heat-resistant chromium-nickel alloys while cooling them in liquid media. The purpose of this paper is to verify the correct operation of the IQLab program when restoring the surface temperature of thermosondes with 1-3 thermocouples. The IQLab program is also designed to solve one-dimensional nonlinear direct lines and inverse heat conduction problems with constant initial and boundary conditions specified as a function of time in a tabular form with a constant and variable time step. A finite-difference method is used to solve the heat equation. Experiments were carried out on samples D = 10-50 mm in liquids with different cooling capacities such as aqueous solutions of  NaCl and Yukon-E polymer, rapeseed oil and I-20A mineral oil. For the calculation we used the readings of thermocouples installed at internal points of cylindrical thermosondes. The advantages of solving inverse heat conduction problems with the IQLab program include the possibility of restoring the surface temperature for cylindrical samples with a diameter of 10 mm to 50 mm with practical accuracy according to the indications of a single thermocouple located in the geometrical center of the thermosonde, which simplifies the manufacture of the probe. For larger dimensions with a diameter D ≥ 50 mm, it is necessary to install control intermediate thermocouples and perform additional tests. The solution of inverse heat conduction problems and restoration of the surface temperature of the sample makes it possible to calculate other important characteristics of the cooling process: the heat flux density and the heat transfer coefficient.
Nervus intermedius dysfunctions after vestibular schwannoma surgery: a prospective clinical study
Authors: Metwali Hussam , Kniese Katja , Kardavani Babak , Gerganov Venelin , Samii Madjid
Published: September 2018

OBJECTIVE

The purpose of this prospective study was to evaluate the dysfunction of the nervus intermedius (NI) after vestibular schwannoma (VS) surgery. The authors present a clinically feasible method for this purpose.

METHODS

In this prospective study, the authors included 30 patients who underwent surgery at the International Neuroscience Institute between May 2014 and February 2017 for resection of VS. The patients’ taste sensation was examined using taste strips. Lacrimation was tested using the Schirmer I test. The clinical evaluation was performed before surgery and repeated at 2 weeks and at 6 months after surgery as well as during the follow-up, which extended up to 2 years. The authors tested the correlation between the NI dysfunctions and the House-Brackmann grade of facial nerve palsy.

RESULTS

The taste sensation was lost on the side of surgery in 2 patients (6.6%) and decreased in 4 patients (13.3%). The disturbance of taste sensation was not statistically correlated with dysfunctions of the motor portion of the facial nerve. The taste impairment resolved in 4 patients within 6 months, but 2 patients suffered from persistent loss of the taste sensation on the side of surgery during the follow-up. In 23 patients (76.6%), the baseline lacrimation was lower on the side of surgery, and it was significantly correlated with outcome for dysfunctions of the motor portion of the facial nerve. During the follow-up, baseline lacrimation improved in correlation with the improvement in the dysfunctions of the motor portion of the facial nerve. None of the patients reported change in salivation or nasal secretion.

CONCLUSIONS

The NI can be affected after VS surgery. The disturbance of baseline lacrimal secretion was correlated with dysfunctions of the motor portion of the facial nerve. However, the disturbance of the taste sensation was not correlated with the grade of facial nerve palsy. Dysfunctions of the NI should be evaluated and separately reported while analyzing facial nerve outcome after VS surgery.
Direct puncture for diagnosis of intradural spinal arachnoid cyst and fenestration using 3D rotational fluoroscopy: technical note and the “jellyfish sign”
Authors: Moses Ziev B. , Chi John H. , Chavali Ram V. S. R.
Published: September 2018

The authors report on a 47-year-old woman with a symptomatic thoracic spinal arachnoid cyst (SAC) who underwent a novel procedure that involves direct puncture of the SAC to visualize, diagnose, and potentially treat these rare spinal lesions. The method described utilizes 3D fluoroscopy to gain access to the SAC, followed by injection of myelographic contrast into the cyst. A characteristic “jellyfish sign” was observed that represents the containment of the contrast within the superior aspect of the cyst and a clear block of cranial flow of contrast, resulting in an undulating pattern of movement of contrast within the cyst. Following balloon fenestration of the cyst, unimpeded flow of contrast was visualized cranially throughout the thoracic subarachnoid space. The patient was discharged the following day in good condition, and subsequently experienced 1 year free from symptoms. This is the first reported case of a successful direct puncture of an SAC with balloon fenestration, and the first noted real-time fluoroscopic “behavior” of CSF within an arachnoid cyst.
Postoperative translation of the upper instrumented vertebra in thoracic adolescent idiopathic scoliosis
Authors: Yamada Katsuhisa , Sudo Hideki , Kaneda Kiyoshi , Shono Yasuhiro , Abe Yuichiro , Iwasaki Norimasa
Published: September 2018

OBJECTIVE

The aim of this retrospective study was to analyze the influence of upper instrumented vertebra (UIV) translation from the C7 plumb line (C7PL) on the long-term postoperative results of patients with main thoracic (MT) adolescent idiopathic scoliosis (AIS).

METHODS

Twenty-five patients had been treated surgically for AIS with a Lenke type 1 curve and had been followed up for a mean period of 18.2 years. Radiographic parameters, pulmonary function measurements, and clinical outcomes were compared between the patients (n = 15) with UIV translation < 20 mm and those (n = 10) with UIV translation ≥ 20 mm at the final follow-up. Correlations between UIV translation and radiographic or pulmonary function parameters were analyzed.

RESULTS

Patients with ≥ 20 mm UIV translation at the final follow-up had a significantly larger preoperative UIV translation than that in the patients with < 20 mm UIV translation at follow-up. The former group also had a significantly lower correction rate of the MT curve, higher chest cage ratio, and lower radiographic shoulder height (p = 0.01, 0.005, and 0.025, respectively) at the final follow-up. The Scoliosis Research Society (SRS)–30 Questionnaire scores were equivalent between the two groups. Correlation analysis showed that the following parameters were significantly associated with UIV translation: MT curve correction rate (r = -0.481, p = 0.015), chest cage ratio (r = 0.673, p < 0.001), and percent-predicted forced expiratory volume in 1 second (r = -0.455, p = 0.033).

CONCLUSIONS

The UIV translation should be considered an important factor that influences postoperative results. In MT AIS patients whose preoperative upper end vertebra (UEV) is distant from the C7PL, the UIV should be selected above the UEV to prevent large UIV translation at the postoperative follow-up.
Fenomena Thixotropic Pada Lempung Sensitive
Authors: Marzuki Ahmad
Published: September 2018

Prakiraan daya dukung ultimit tiang dilakukan dengan pendekatan teoritis dan aktual dimana pendekatan teoritis dilakukan dengan mengolah data pemeriksaan parameter tanah di lapangan dan atau di laboratorium. Pendekatan daya dukung aktual dilakukan di lapangan dengan menguji langsung kemampuan dukung tiang terhadap penurunannya. Nilai daya dukung dari 2 (dua) pendekatan tersebut tidak selalu sama, hal ini disebabkan perbedaan kondisi parameter tanah pada saat pra-pemancangan dan saat pemancangan. Terjadiya perbedaan kondisi tersebut karena perbedaan tingkat gangguan parameter dukung tanah terhadap beban aplikasi dan fungsi waktu.   

Beberapa eksperimental di lapangan (Herman wahyudi,1999) memperlihatkan bahwa daya dukung tanah lambat laun bertambah seiring dengan bertambahnya waktu atau dengan kata lain kekuatan tanah cenderung akan kembali sebagian  ke keadaan daya dukung sebelum diganggu atau disebut peristiwa thixotropic. Pengamatan peristiwa thixotropic pada lempung, khususnya lempung sensitive sangatlah penting untuk memberi pendekatan dugaan tentang adanya kekuatan lebih dari lempung sensitive setelah diganggu daripada kekuatan lempung sensitive yang mengabaikan pengaruh thixotropic. Pemahaman tentang peranan thixotropi sangat menbantu dalam  pendekatan nilai-nilai Safety Factor untuk menghitung daya dukung desain  yang berpengaruh pada aspek ekomonis dan kemudahan pelaksanaan dilapangan dan menentukan waktu tunggu jika diperlukan setelah pelaksanaan pondasi dan sebelum pondasi dibebani oleh struktur diatasnya agar mendapatkan daya dukung yang optimal..
Identifikasi Dan Pemetaan Morfometri Daerah Aliran Sungai Martapura Menggunakan Teknologi GIS
Authors: Sobatnu Ferry , Irawan Faris Ade , Salim Agus
Published: September 2018

The low location of the Banjar district land from the sea surface causes the flow of water on the soil surface becomes substandard. Consequently some areas always stagnant to reach 29.93 %, some 0.58 % flooded periodically. Almost every year when the rainy season arrives with a high intensity in the Martapura area there is a flood with an altitude of up to ± 1 meter. Based on data of regional disaster management agency (BPBD), there are eight districts that are prone to flooding. Namely, Sungai Pinang district, Sambung Makmur, Pengaron, Astambul, Karang Intan, Martapura, Sungai Tabuk, dan Mataraman. Research was conducted with the help of Arcgis software using a calculate geometry tool to identify morphometry. Watershed morphometry is a quantitative measure of watershed characteristics associated with the geomorphological aspects of a region. These characteristics are related to the rainwater drainage process that falls within the watershed. The research results show watershed Martapura has an area of 453.88 km2, the length of the main river reaches 36,566 meters, the slope (gradient) of 0.022 %. River density level is 0.828 km/km2.The order level of the river reaches 10 level. The pattern of the river is rektangular with the type of watershed in parallel. Based on data mapping and identification of Martapura river basin, so that important. information can be generated. such morphometric data can be used as reference for environmental problem solving and watershed management.
Metode Penalaran Sistem Pakar Menggunakan Model Hibrid Fuzzy Dempster Shafer Untuk Identifikasi Hama dan Penyakit Tanaman Jagung
Authors: Nurmahaludin Nurmahaludin , Cahyono Gunawan Rudi
Published: September 2018

Dempster Shafer merupakan metode yang banyak digunakan dalam penalaran sistempakar. Penarikan kesimpulan atas suatu permasalahan dalam metode tersebut didasarkan padapenggabungan dua buah evidence (fakta) yang ada, dimana masing-masing fakta mempunyaiukuran kepercayaan yang dinyatakan dalam nilai densitas m1 dan m2.Penelitian ini akan menentukan nilai densitas (m) dengan menggunakan logika fuzzy. Inputfuzzy adalah tingkat kemunculan gejala dan tingkat keunikan gejala, sedangkan output fuzzyadalah nilai crisp dari probabilitas densitas. Derajat kepastian dari jawaban pakar berdasarkangejala yang diberikan kemudian dihitung menggunakan aturan kombinasi Dempster.Implementasi dalam penelitian ini adalah sistem pakar untuk identifikasi hama dan penyakittanaman jagung. Aplikasi ini dipilih agar masyarakat tani mampu memanfaatkan sistem pakartersebut dalam rangka memberikan pengetahuan kepakaran mengenai hama penyakit dan carapemberantasannya.Sistem pakar yang dirancang dapat memberikan hasil identifikasi berdasar pada gejalayang diinputkan. Penentuan jenis hama atau penyakit yang menyerang didasarkan pada prosespencarian nilai kepercayaan terhadap suatu diagnosa. Semakin besar nilai kepercayaansemakin besar pula potensi hama/penyakit yang menyerang, begitu pula sebaliknyaPenelitianini bertujuan untuk mengetahui pengaruh beda media pendingin pada proses hardening padakekerasan pegas daun. Proses penelitian adalah dengan jalan memanasan pegas daun sampaisuhu didaerah atau diatas daerah kritis disusul dengan pendinginan yang cepat. Bila kadarkarbon diketahui, suhu pemanasannya dapat dibaca dari diagram fasa besi-carbida . Akan tetapibila komposisi baja tidak diketahui, perlu diadakan percobaan untuk mengetahui daerahpemanasannya. Cara yang terbaik ialah memanaskan dan mencelup beberapa potongan bajapada suhu tertentu disusul dengan pengujian kekerasan. Bila suhu yang tepat telah diperolehakan terjadi perubahan dalam kekerasan dan sifat lainnya.