bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of structural, optical and physical properties of polyurethane composites doped with metal alkoxides
Authors: Nadafan Marzieh , Anvari Javid Zamir 
Published: November 2020

Abstract
In this research, polyurethane (PU)/tetraethyl orthosilicate (TEOS) composite was prepared via one-step polymerization method using different concentrations of TEOS in PU. The structural, optical and physical properties of PU composite were characterized by SEM imaging, FT-IR spectroscopy, water uptake, Raman spectroscopy and optical microscopy imaging of synthesized samples. The SEM results showed that by adding TEOS to the PU, the cell and window size of synthesized samples decreased. This result was also observed in the optical micrographs. The bonding characteristics of PU/TEOS composites were analyzed using Raman and FT-IR spectra. According to the FT-IR spectra, the degree of phase separation (DPS) and hydrogen bonding index, R, in 800 μl TEOS/PU had the highest R and DPS factors. By adding different concentrations of TEOS to PU, the apparent density decreased but the real density increased. The total, open and closed porosity of the synthesized samples were calculated. At low loading of TEOS in PU, the open porosity of the samples increased. The PU/TEOS composites may be promising candidates for absorbing sound.
Ablation of single-crystalline cesium iodide by extreme ultraviolet capillary-discharge laser
Authors: Wild Jan , Pira Peter , Burian Tomas , Vysin Ludek , Juha Libor , Zelinger Zdenek , Danis Stanislav , Nehasil Vaclav , Rafaj Zdenek , Nevrly Vaclav , Dostal Michal , Bitala Petr , Kudrna Pavel , Tichy Milan , Rocca Jorge J. 
Published: November 2020

Abstract
Extreme ultraviolet (XUV) capillary-discharge lasers (CDLs) are a suitable source for the efficient, clean ablation of ionic crystals, which are obviously difficult to ablate with conventional, long-wavelength lasers. In the present study, a single crystal of cesium iodide (CsI) was irradiated by multiple, focused 1.5-ns pulses of 46.9-nm radiation delivered from a compact XUV-CDL device operated at either 2-Hz or 3-Hz repetition rates. The ablation rates were determined from the depth of the craters produced by the accumulation of laser pulses. Langmuir probes were used to diagnose the plasma plume produced by the focused XUV-CDL beam. Both the electron density and electron temperature were sufficiently high to confirm that ablation was the key process in the observed CsI removal. Moreover, a CsI thin film on MgO substrate was prepared by XUV pulsed laser deposition; a fraction of the film was detected by X-ray photoelectron spectroscopy.
Variation in rms charge radii of deuteron and helium nuclei with s\sqrt s
Authors: Zahra Sarwat , Shafaq Bushra , Kanwal Bushra , Akbar Nosheen 
Published: November 2020

Abstract
By considering energy-dependent form factors extracted from generalized Chou–Yang model, root mean square (rms) charge radii of deuteron and helium nuclei (alpha) are predicted at different values of center of mass energy which are in good agreement with theoretical predictions and experimental results. The rms radius is inversely proportional to mass of nuclei. Besides, the relationship between radii and energy are also derived.
Body Composition, Physical Fitness and Physical Activity Among Students from Universities in Biala Podlaska
Authors: Popławska Helena , Dmitruk Agnieszka , Hołub Wojciech 
Published: November 2020

Abstract

Introduction. Body composition as well as physical fitness and physical activity are determined by a variety of factors affecting an individual, a social group or population.

Material and methods. The research included 1st- and 2nd-year students from universities located in Biala Podlaska (University of Physical Education – UPE and State School of Higher Education – SSHE). Students were divided into 3 groups. The first group included physical education (PE) students from the UPE, the second group consisted of physiotherapy students from the UPE, while the third group included students from the SSHE. In general, 1107 individuals were examined, including 563 females and 544 males. Body height, body mass, waist circumference, hip circumference and six skinfolds were measured, fat tissue distribution indices such as WHR, TSS, ESS, TER were calculated and body composition was assessed with the use of IOI 353 body composition analyser. Physical activity was assessed using the International Physical Activity Questionnaire (IPAQ). Physical fitness was evaluated by performing EUROFIT tests. Statistical analysis was made on the basis of Shapiro-Wilk and Kruskal-Wallis tests.

Results. PE students manifested the highest values of body height, muscle mass and lean body mass as well as the highest level of physical activity and physical fitness. Physiotherapy students had the highest body mass and the highest level of body fat. Students from the SSHE were characterised by the lowest body height and weight, muscle mass and lean body mass. They also manifested the lowest level of total body water. Participants from this university achieved the lowest results in such physical fitness tests as standing broad jump, 10 x 5 m shuttle run and sit-and-reach. Females from the SSHE also manifested the lowest level of total physical activity.

Conclusion. It was concluded that somatic build, physical fitness and physical activity of the participants differ depending on their field of study.
Prediction of Vortex-Induced Vibration Response of Deep Sea Top-Tensioned Riser in Sheared Flow Considering Parametric Excitations
Authors: Gao Guanghai , Cui Yunjing , Qiu Xingqi 
Published: November 2020

Abstract
It is widely accepted that vortex-induced vibration (VIV) is a major concern in the design of deep sea top-tensioned risers, especially when the riser is subjected to axial parametric excitations. An improved time domain prediction model was proposed in this paper. The prediction model was based on classical van der Pol wake oscillator models, and the impacts of the riser in-line vibration and vessel heave motion were considered. The finite element, Newmark-β and Newton‒Raphson methods were adopted to solve the coupled nonlinear partial differential equations. The entire numerical solution process was realised by a self-developed program based on MATLAB. Comparisons between the numerical calculation and the published experimental test were conducted in this paper. The in-line and cross-flow VIV responses of a real size top-tensioned riser in linear sheared flow were analysed. The effects of the vessel heave amplitude and frequency on the riser VIV were also studied. The results show that the vibration displacements of the riser are larger than the case without vessel heave motion. The vibration modes and frequencies of the riser are also changed due to the vessel heave motion
A New Low SNR Underwater Acoustic Signal Classification Method Based on Intrinsic Modal Features Maintaining Dimensionality Reduction
Authors: Ju Yang , Wei Zhengxian , Huangfu Li , Xiao Feng 
Published: November 2020

Abstract
The classification of low signal-to-noise ratio (SNR) underwater acoustic signals in complex acoustic environments and increasingly small target radiation noise is a hot research topic.. This paper proposes a new method for signal processing—low SNR underwater acoustic signal classification method (LSUASC)—based on intrinsic modal features maintaining dimensionality reduction. Using the LSUASC method, the underwater acoustic signal was first transformed with the Hilbert-Huang Transform (HHT) and the intrinsic mode was extracted. the intrinsic mode was then transformed into a corresponding Mel-frequency cepstrum coefficient (MFCC) to form a multidimensional feature vector of the low SNR acoustic signal. Next, a semi-supervised fuzzy rough Laplacian Eigenmap (SSFRLE) method was proposed to perform manifold dimension reduction (local sparse and discrete features of underwater acoustic signals can be maintained in the dimension reduction process) and principal component analysis (PCA) was adopted in the process of dimension reduction to define the reduced dimension adaptively. Finally, Fuzzy C-Means (FCMs), which are able to classify data with weak features was adopted to cluster the signal features after dimensionality reduction. The experimental results presented here show that the LSUASC method is able to classify low SNR underwater acoustic signals with high accuracy.
Topographic Correction of LAPAN-A3/LAPAN-IPB Multispectral Image: A Comparison of Five Different Algorithms
Authors: Zylshal Zylshal 
Published: November 2020

Abstract
Reflectance variability in mountainous regions caused by steep slopes can decrease the accuracy of landcover mapping. Topographic correction aims to reduce this effect, and various techniques have been proposed to conduct such correction on satellite imagery. This paper presents the initial results of five different topographic correction techniques applied to LAPAN-A3 multispectral images, namely cosine correction, improved cosine correction, Minnaert correction, modified Minnaert correction and two-stage normalization. The widely-available ALOS World 3D 30 meter DEM was employed, with the evaluation made in a mountainous area in South Sulawesi, Indonesia, located in an ancient volcanic region, with slopes ranging from 0 to 60 degrees. The slope aspect was almost equally distributed in all directions. Visual and statistical analysis was conducted before and after the topographic correction to evaluate the results. Standard deviation (SD) and the coefficient variation (CV) were calculated; the results show that the topographic corrections were able to reduce the effect of shadows and relief. Minnaert correction proved to be the best method in terms of visual appearance and spectral variability reduction.
Car Security System Based on Raspberry Pi
Authors: Abdulhamid Mohanad , Matongo Achiki 
Published: November 2020

Abstract
Statistics show that there is an increase in production of cars every year worldwide. Similarly, there is an increase in car theft attempts and carjacking cases worldwide. This paper is meant to increase the user’s situational awareness. The user is able to check for surrounding of the vehicle and judge for himself/ herself before approaching the vehicle. Raspberry Pi is used as the controller in this paper. A Universal Serial Bus (USB) webcam plugged into the Raspberry Pi enables the user to view the images captured in real time by use of an application installed on the user’s smartphone.
Mobile Phone and Barcode Scanner
Authors: Abdulhamid Mohanad , Matongo Achiki 
Published: November 2020

Abstract
With the advancement in microprocessor technology, mobile phones are becoming more preferable in our day to day lives as compared to personal computers since most phones are capable of functionalities as sophisticated as our PC’s or laptops. Mobile phones nowadays have processor speeds as high as 1GHz and can have a storage capacity of about 32Gb and they also have long hours of battery life. In addition to these feature, there is the aspect of great portability. When all these are combined into one, the mobile phones can be viewed as a very powerful device that rivals PC’s. Advancements of hardware also had made mobile phones much smaller and more efficient whereas including an increasing of peripherals number. The scope of this paper is basically to make a mobile phone application and how to interface the mobile phone to the scanner. The mobile application is to be developed in the Linux-based Android platform. An algorithm based on the operation principles is also to be developed during the work.
Open Source Architecture for Iot Based SCADA System for Smart Home
Authors: Grigorescu S. D. , Seritan G. C. , Enache B. A. , Argatu F. C. , Adochiei F. C. 
Published: November 2020

Abstract
The Internet of Things is considered an emerging technology with the potential to penetrate all aspects of our lives. However, with great power comes great responsibility and the privacy and security needed for critical infrastructure or sensitive commercial operations is very different than the needs of a Smart Home. Additionally, the available security resources from the private sector are totally different than the ones available to a homeowner. In this context, we developed an open source architecture for IoT which is based on the advantages of a SCADA system and can be easily applied to a Smart Home. This architecture assures a high-security level, even for low technical skills homeowners, with minimal costs.
Power Control in an Islanded Microgrid Using Virtual Impedance
Authors: Dashtdar Majid , Dashtdar Masoud 
Published: November 2020

Abstract
The common droop method is one of the most effective methods for controlling power-sharing in islanded microgrid. Due to the dependence of the active and reactive power on the voltage and frequency in resistor microgrid, the use of this method in controlling the power-sharing in these types of a microgrid to the undesirable performance of active and reactive power-sharing. In this paper, by applying virtual impedance in the local controller of distributed generation resources, this paper has modified the common droop method and improved power-sharing. The proposed virtual impedance has an adjustable resistor section and a fixed reactance section. Simulation of a typical islanded microgrid in PSCAD / EMTDC software shows that the proposed method is capable of improving the active and reactive power sharing in resistive microgrid controlled by the droop method.
Development and Characterization of EST-SSR Markers for Juniperus squamata (Cupressaceae), an ecologically important conifer in Asian mountains
Authors: Ju Tsam , Farhat Perla , Tao Wenjing , Miao Jibin , Li Jialiang , Fan Xiaoyan , Tso Sonam , Mao Kangshan 
Published: November 2020

Abstract

Juniperus squamata, an endemic conifer of Asia, is an important shrub ecologically and economically. Yet little is known about its genetic diversity and population structure due to lacking of highly polymorphic molecular markers. In this study, expressed sequence tag microsatellite markers (EST-SSR) were developed for Juniperus squamata. Illumina HiSeq data were used to reconstruct the transcriptome of this species by de novo assembly. Based on this transcriptome, 18 SSR markers were designed and successfully amplified. Just one locus was eliminated due to its detection of null alleles and the remaining 17 loci were polymorphic, generating five to 14 alleles per locus in J. squamata. Markers cross-amplification tests were successful in two closely related species of J. squamata. These markers will serve as a basis for further studies to assess the genetic diversity and population structure of J. squamata. As well, they could be useful in promoting sustainable forest management strategies for this species in the face of global climate change.
On the Oscillation of Conformable Impulsive Vector Partial Differential Equations
Authors: Chatzarakis George E. , Logaarasi Kandhasamy , Raja Thangaraj , Sadhasivam Vadivel 
Published: November 2020

Abstract
In this paper, we study the oscillations of a class of conformable impulsive vector partial functional differential equations. For this class, our approach is to reduce the multi-dimensional oscillation problems to that of one dimensional impulsive delay differential inequalities by applying inner product reducing dimension method and an impulsive differential inequality technique. We provide an example to illustrate the effectiveness of our main results.
Necessary and Sufficient Conditions for Oscillation of Solutions to Second-Order Neutral Differential Equations with Impulses
Authors: Santra Shyam Sundar 
Published: November 2020

Abstract
In this work, necessary and sufficient conditions for oscillation of solutions of second-order neutral impulsive differential system

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Kategoryzacja uwarunkowań procesu suburbanizacji w świetle literatury zagranicznej i krajowej
Authors: Mróz Maciej 
Published: November 2020

AbstraktProces suburbanizacji jest zjawiskiem dobrze rozpoznanym w literaturze polskiej oraz zagranicznej. Dzięki temu mamy dostęp do szerokiego wachlarza literatury, który pozwala spojrzeć na problem suburbanizacji z wielu perspektyw badawczych na przestrzeni długiego okresu, a jego uwarunkowania są najchętniej wskazywaną grupą w większości opracowań poświęconych problemowi. Dla potrzeb artykułu dokonano przeglądu i analizy zagranicznych i krajowych opracowań literaturowych poświęconych zagadnieniu suburbanizacji. Rozpoznany obszar badań dotyczy aspektów suburbanizacji na wszystkich zamieszkanych przez człowieka kontynentach, co daje bardzo różnorodny przegląd obszarów badawczych. Kwerenda literatury pozwoliła na wyodrębnienie łącznie 274 różnych szczegółowych przyczyn, które według autorów odpowiadają za powstawanie zjawiska suburbanizacji. Znaczna złożoność uwarunkowań pozwoliła na pogrupowanie i wydzielenie 10 głównych kategorii przyczyn zachodzenia suburbanizacji.
Prawne uwarunkowania peryurbanizacji w Polsce – zagadnienia wybrane
Authors: Fogel Anna 
Published: November 2020

AbstraktPrzedmiotem artykułu jest analiza, na ile obowiązujące prawodawstwo oraz akty planowania strategicznego są adekwatne do narastających wyzwań w zakresie potrzeb polityki przestrzennej związanych z przenikaniem się i mieszaniem przeznaczenia i funkcji terenów związanych z gospodarką rolniczą oraz presją lokalizacji zabudowy mieszkaniowej i usługowej, a także utrzymywaniem w obrębie miast terenów zielonych. Analiza ta dotyczy wybranych zagadnień, w szczególności: adekwatności powiązania ochrony gruntów rolnych z granicami administracyjnymi miast i dopuszczalności określania przeznaczenia wielofunkcyjnego i mieszanego w dokumentach planistycznych, a zwłaszcza miejscowym planie zagospodarowania przestrzennego.
O poszerzenie podejścia do partycypacji społecznej w kształtowaniu przestrzeni
Authors: Siemiński Waldemar , Tarchalska Ewa 
Published: November 2020

AbstraktW ujęciach teoretycznych partycypacji społecznej w planowaniu i kształ-towaniu przestrzeni po inicjującej je koncepcji „drabiny partycypacji” S.R. Arnstein (1968) zapanował zastój. Przykładowo problematyka ta w ogóle nie pojawia się w podręcznikach socjologii miasta i przestrzeni. Jest tak mimo „nadprodukcji” narzędzi i metod partycypacji w praktyce zarządzania publicznego, w tym w planowaniu przestrzennym. Artykuł próbuje nadrobić ten brak. Proponuje istotne dla ujęć teoretycznych: 1) pełniejsze zdefiniowanie partycypacji społecznej; 2) inne niż u S.R. Arnstein (1968) klasyfikacje typów partycypacji; 3) przykłady nowych, innowacyjnych w kształtowaniu przestrzeni narzędzi i metod partycypacji społecznej. Szczupłe objętościowo ramy artykułu każą raczej sygnalizować niż rozwijać problemy.
Miejsce i rola kultury oraz dziedzictwa kulturowego w rewitalizacji na Mazowszu
Authors: Tomczyk Edyta 
Published: November 2020

AbstraktOd połowy XX w. obserwuje się wzrost znaczenia kultury w rozwoju miast, która z czasem stała się też ważnym elementem procesów rewitalizacji zdegradowanych dzielnic. W Europie Zachodniej szczytowym przejawem tej roli były tzw. projekty flagowe, a na niwie naukowej – modele rewitalizacji w mniejszym lub większym stopniu wykorzystujące kulturę. Inaczej wygląda sytuacja w Polsce, gdzie rolę kultury w rewitalizacji określają obowiązujące akty prawne regulujące zasady prowadzenia rewitalizacji na obszarach zdegradowanych gmin. Wyznaczona w nich rola ogranicza właściwie udział kultury do poprawy uczestnictwa w życiu kulturalnym i przeciwdziałania degradacji obiektów dziedzictwa kulturowego. Celem artykułu jest analiza miejsca i roli dziedzictwa kulturowego oraz kultury w obecnie realizowanych programach rewitalizacji w gminach miejskich na Mazowszu. W badaniu skupiono się na identyfikacji wskaźników wykorzystanych w diagnozie delimitacyjnej i pogłębionej pod kątem obecności kultury i dziedzictwa kulturowego. Kwestię tę przeanalizowano również w przypadku celów i kierunków działań oraz zaplanowanych przedsięwzięć analizowanych programów. W podsumowaniu artykułu znalazły się wnioski z przeprowadzonego badania i próba odpowiedzi na pytanie o rolę kultury w procesie rewitalizacji na podstawie modelu zaproponowanego przez G. Ewans (2005).
Dosing interval adjustment of denosumab for the treatment of giant cell tumor of the sphenoid bone: A case report
Authors: Tanikawa Motoki , Yamada Hiroshi , Sakata Tomohiro , Mase Mitsuhito 
Published: November 2020

Background:
In the treatment of giant cell tumor of bone (GCTB), the efficacy and safety of denosumab, a receptor activator nuclear factor κ-B ligand inhibitor, has previously been demonstrated, especially for unresectable tumors. One of the current issues in denosumab treatment for unresectable GCTB is whether it can be discontinued, or whether the dosage or the dosing interval can safely be adjusted, if discontinuation is not possible, to avoid the occurrence of side effects.

Case Description:
A 15-year-old boy with diplopia was referred to our hospital after a space-occupying lesion in the sphenoid bone was found on head CT. Partial removal of the tumor was performed through an endoscopic endonasal approach, and pathological diagnosis was confirmed as GCTB. Thereafter, the patient received 120 mg subcutaneous injections of denosumab every 28 days for the first 2 years. Since bone formation was induced and sustained along with tumor reduction, the dosing interval was gradually extended, with 4 monthly dosing for the next 1 year, followed by 6 monthly dosing for the succeeding 2 years. With the extension of the dosing interval, the ossified tumor has regrown slightly, but within an acceptable range.

Conclusion:
Discontinuation of denosumab treatment for unresectable GCTB was not thought to be possible for the current case due to the nature of the drug, as reported in the literature. Extending the dosing interval up to 6 monthly, as could be done safely in the current case, can be considered a useful and appropriate measure.