bluuebunny/crossref_metadata_2025 huggingface dataset:
Perspectives of Molecularly Imprinted Polymer-Based Drug Delivery Systems in Ocular Therapy
Authors: Bodoki Andreea E. , Iacob Bogdan-C. , Dinte Elena , Vostinaru Oliviu , Samoila Ovidiu , Bodoki Ede
Published: October 2021

Although the human eye is an easily accessible sensory organ, it remains a challenge for drug administration due to the presence of several anatomical and physiological barriers which limit the access of drugs to its internal structures. Molecular imprinting technology may be considered the avant-garde approach in advanced drug delivery applications and, in particular, in ocular therapy. In fact, molecularly imprinted polymers hold the promise to compensate for the current shortcomings of the available arsenal of drug delivery systems intended for ocular therapy. The present manuscript aims to review the recent advances, the current challenges and most importantly to raise awareness on the underexplored potential and future perspectives of molecularly imprinted polymer-based drug delivery systems intended for the treatment of eye diseases.
4D Printing of Smart Polymer Nanocomposites: Integrating Graphene and Acrylate Based Shape Memory Polymers
Authors: Chowdhury Jaydeep , Anirudh Premnath Vijay , Karunakaran Chandrasekaran , Rajmohan Vasudevan , Mathew Arun Tom , Koziol Krzysztof , Alsanie Walaa F. , Kannan Chidambaram , Balan Arunachalam S. S. , Thakur Vijay Kumar
Published: October 2021

The ever-increasing demand for materials to have superior properties and satisfy functions in the field of soft robotics and beyond has resulted in the advent of the new field of four-dimensional (4D) printing. The ability of these materials to respond to various stimuli inspires novel applications and opens several research possibilities. In this work, we report on the 4D printing of one such Shape Memory Polymer (SMP) tBA-co-DEGDA (tert-Butyl Acrylate with diethylene glycol diacrylate). The novelty lies in establishing the relationship between the various characteristic properties (tensile stress, surface roughness, recovery time, strain fixity, and glass transition temperature) concerning the fact that the print parameters of the laser pulse frequency and print speed are governed in the micro-stereolithography (Micro SLA) method. It is found that the sample printed with a speed of 90 mm/s and 110 pulses/s possessed the best batch of properties, with shape fixity percentages of about 86.3% and recovery times as low as 6.95 s. The samples built using the optimal parameters are further subjected to the addition of graphene nanoparticles, which further enhances all the mechanical and surface properties. It has been observed that the addition of 0.3 wt.% of graphene nanoparticles provides the best results.
Cytocompatibility of Polymethyl Methacrylate Honeycomb-like Pattern on Perfluorinated Polymer
Authors: Hurtuková Klaudia , Juřicová Veronika , Fajstavrová Klára , Fajstavr Dominik , Slepičková Kasálková Nikola , Rimpelová Silvie , Švorčík Václav , Slepička Petr
Published: October 2021

In this study, we present a simple approach for developing a biocompatible polymer scaffold with a honeycomb-like micropattern. We aimed to combine a plasma treatment of fluorinated ethylene propylene (FEP) substrate with an improved phase separation technique. The plasma exposure served for modification of the polymer surface properties, such as roughness, surface chemistry, and wettability. The treated FEP substrate was applied for the growth of a honeycomb-like pattern from a solution of polymethyl methacrylate (PMMA). The properties of the pattern were strongly dependent on the conditions of plasma exposure of the FEP substrate. The physico-chemical properties of the prepared pattern, such as changes in wettability, aging, morphology, and surface chemistry, were determined. Further, we have examined the cellular response of human osteoblasts (U-2 OS) on the modified substrates. The micropattern prepared with a selected combination of surface activation and amount of PMMA for honeycomb construction showed a positive effect on U-2 OS cell adhesion and proliferation. Samples with higher PMMA content (3 and 4 g) formed more periodic hexagonal structures on the surface compared to its lower amount (1 and 2 g), which led to a significant increase in the pattern cytocompatibility compared to pristine or plasma-treated FEP.
Sustainable Functionalization of PAN to Improve Tinctorial Capacity
Authors: Popescu Vasilica , Buciscanu Ingrid Ioana , Pruneanu Melinda , Maier Stelian Sergiu , Danila Angela , Maier Vasilica , Pîslaru Marius , Rotaru Vlad , Cristian Irina Niculina , Popescu Andrei , Istrate Bogdan , Blaga Alexandra Cristina , Ciolacu Florin , Cretescu Igor , Chelariu Petronela , Marin Marina
Published: October 2021

This study may open a new way to obtain the coloration of a polymer during functionalization. Two polyacrylonitrile (PAN) polymers in the form of textile fibers (Melana and Dralon L) were subjected to functionalization treatments in order to improve the dyeing capacity. The functionalizations determined by an organo-hypervalent iodine reagent developed in situ led to fiber coloration without using dyes. KIO3 was formed in situ from the interaction of aqueous solutions of 3–9% KOH with 3–9% I2, at 120 °C. The yellow-orange coloration appeared as a result of the transformations in the chemical structure of each functionalized polymer, with the formation of iodinehydrin groups. The degree of functionalization directly influenced the obtained color. The results of the Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDX), Map and Temogravimetric Analysis (TG) plus Differential Thermal (DTA) analyses indicated the presence of new functional groups, such as iodine-oxime. The X-ray diffraction (XRD) analysis confirmed the change of the crystalline/amorphous ratio in favor of the former. The new groups introduced by functionalization make it possible to dye with classes of dyes specific to these groups, but not specific to PAN fibers, thus improving their dyeing capacity.
Investigation of Hydrogen Content and Dilution Effect on Syngas/Air Premixed Turbulent Flame Using OH Planar Laser-Induced Fluorescence
Authors: Yang Li , Weng Wubin , Zhu Yanqun , He Yong , Wang Zhihua , Li Zhongshan
Published: October 2021

Syngas produced by gasification, which contains a high hydrogen content, has significant potential. The variation in the hydrogen content and dilution combustion are effective means to improve the steady combustion of syngas and reduce NOx emissions. OH planar laser-induced fluorescence technology (OH-PLIF) was applied in the present investigation of the turbulence of a premixed flame of syngas with varied compositions of H2/CO. The flame front structure and turbulent flame velocities of syngas with varied compositions and turbulent intensities were analyzed and calculated. Results showed that the trend in the turbulent flame speed with different hydrogen proportions and dilutions was similar to that of the laminar flame speed of the corresponding syngas. A higher hydrogen proportion induced a higher turbulent flame speed, higher OH concentration, and a smaller flame. Dilution had the opposite effect. Increasing the Reynolds number also increased the turbulent flame speed and OH concentration. In addition, the effect of the turbulence on the combustion of syngas was independent of the composition of syngas after the analysis of the ratio between the turbulent flame speed and the corresponding laminar flame speed, for the turbulent flames under low turbulent intensity. These research results provide a theoretical basis for the practical application of syngas with a complex composition in gas turbine power generation.
A Data-Centric Approach to Design and Analysis of a Surface-Inspection System Based on Deep Learning in the Plastic Injection Molding Industry
Authors: Im Donggyun , Lee Sangkyu , Lee Homin , Yoon Byungguan , So Fayoung , Jeong Jongpil
Published: October 2021

Manufacturers are eager to replace the human inspector with automatic inspection systems to improve the competitive advantage by means of quality. However, some manufacturers have failed to apply the traditional vision system because of constraints in data acquisition and feature extraction. In this paper, we propose an inspection system based on deep learning for a tampon applicator producer that uses the applicator’s structural characteristics for data acquisition and uses state-of-the-art models for object detection and instance segmentation, YOLOv4 and YOLACT for feature extraction, respectively. During the on-site trial test, we experienced some False-Positive (FP) cases and found a possible Type I error. We used a data-centric approach to solve the problem by using two different data pre-processing methods, the Background Removal (BR) and Contrast Limited Adaptive Histogram Equalization (CLAHE). We have experimented with analyzing the effect of the methods on the inspection with the self-created dataset. We found that CLAHE increased Recall by 0.1 at the image level, and both CLAHE and BR improved Precision by 0.04–0.06 at the bounding box level. These results support that the data-centric approach might improve the detection rate. However, the data pre-processing techniques deteriorated the metrics used to measure the overall performance, such as F1-score and Average Precision (AP), even though we empirically confirmed that the malfunctions improved. With the detailed analysis of the result, we have found some cases that revealed the ambiguity of the decisions caused by the inconsistency in data annotation. Our research alerts AI practitioners that validating the model based only on the metrics may lead to a wrong conclusion.
An Alternative Method for the Obtention of Ceramic Foams from Gold and Silver Tailings with High Pyrite Content
Authors: Salazar Cristian , Uribe Lina
Published: October 2021

Mining extraction operations generate a large number of tailings that contain different mineral phases such as quartz (principally), complex silicates, metallic elements, etc. Tailings impose a serious concern as it is possible to have acid mine drainage potential, leaching, and percolation events of heavy metals into the environment under certain conditions. The objective of this work was to evaluate the technical feasibility of producing ceramic foams from gold and silver tailings with high sulfide gangue through a previous flotation process to eliminate impurities associated to this gangue, as it can produce SO2 in the foaming process, and to analyze the effect of the sintering time and the temperature on the characteristics of foams obtained with this type of waste. The results showed that the inverse flotation reduced the presence of impurities associated to sulfides. In addition, it was possible to observe that in the absence of a foaming agent, it was possible to obtain ceramic foams with an apparent density and a mechanical strength near to 1.0 g/cm3 and 0.5 MPa, respectively, when a higher sintering temperature and time were used. On the other hand, the presence of the foaming agent reduced the apparent density to 0.5 g/cm3 without decreasing to a great extent the mechanical strength of ceramic foams at lower sintering temperatures.
Rethinking the Role and Architectural Value of the St. Andrew Kim Dae-Geon Memorial Church in the Mirinae Shrine in Korea
Authors: Seo Myengsoo
Published: October 2021

This paper reconsiders the role and value of the St. Andrew Kim Dae-Geon Memorial Church and his grave site in the Mirinae Shrine, currently recognized as a special place of pilgrimage for Catholics in Korea. The Mirinae area is the place where the remains of Father Kim Dae-Geon were relocated after his martyrdom in 1846. To commemorate this, the St. Andrew Kim Dae-Geon Memorial Church was built in 1928 by his grave, and his relics and image are enshrined within. This research examines the value of the church and his grave site from three perspectives: first, the historical value related to Father Kim Dae-Geon; second, the architectural value of the Memorial Church; and third, value from the sense of place (or genius loci) of the church and environs. The role and architectural value of the building and site were examined through a literature review, an archival investigation, and a visit to the site. This research is about interpretation of the church and Father Kim Dae-Geon’s grave site in the Mirinae Shrine—not only the building itself, but also its sense of place, beyond the historical research focusing on the person.
What the Fall of Angels Tells Us about the Essence of Morality
Authors: Koszkało Martyna , Koszkało Robert
Published: October 2021

The article describes two concepts of the sources of morality present in the evolutionist traditions (Evolution of Ethics and the Veneer Theory). Then, a modal argument against the evolutionist theory of morality is presented, based on the history of the fall of angels present in classical theism. This story is taken in the article as a possible example of the actions of individuals who operate outside of any evolutionary and social context, and of those whose ontic constitution excludes the possession of emotions. In this way, an attempt is made to present the essential features of anyone that is subject to moral evaluation, thus concluding that morality in its essence cannot be defined in biological and evolutionary terms.
Quantifying Soil Moisture Impacts on Water Use Efficiency in Terrestrial Ecosystems of China
Authors: Hao Xingming , Zhang Jingjing , Fan Xue , Hao Haichao , Li Yuanhang
Published: October 2021

Soil moisture (SM) significantly affects the exchange of land surface energy and the stability of terrestrial ecosystems. Although some conclusions have been drawn about the effects of SM on the ecosystem water use efficiency (WUE), the influence mechanism and the quantitative assessment framework of SM on WUE are still unclear. This study provides an analysis framework for the feedback relationship between SM and WUE based on the dependence of the evaporation fraction on SM and output datasets from remote sensing and the Global Land Data Assimilation System. The results show that the range of WUE of terrestrial ecosystems of China was 0.02–19.26 g C/kg H2O in the growing season with an average value of 1.05 g C/kg H2O. They also show a downward trend in 43.99% of the total area. In the evapotranspiration (ET) pathway, SM negatively affected WUE, and the sensitivity coefficient ranged from −18.49 to −0.04. In the net primary production (NPP) pathway, the sensitivity coefficient ranged from −68.66 to 43.19. Under the dual effects of the ET and NPP pathways, the influence of SM on WUE was negative in 84.62% of the area. Variation in SM led to significant WUE variability. Generally, the percentage change in WUE (ΔWUE) ranged from 0% to 190.86%, with an average value of 28.02%. The maximum ΔWUE ranged from 0% to 758.78%, with an average value of 109.29%. The WUE of forest ecosystems showed strong resistance to SM variation, whereas that of non-forest vegetation was more sensitive to SM variation. This analytical framework provides a new perspective on the feedback relationship between WUE and SM in terrestrial ecosystems.
Evaluation of Remote-Sensing Reflectance Products from Multiple Ocean Color Missions in Highly Turbid Water (Hangzhou Bay)
Authors: Xu Yuzhuang , He Xianqiang , Bai Yan , Wang Difeng , Zhu Qiankun , Ding Xiaosong
Published: October 2021

Validation of remote-sensing reflectance (Rrs) products is necessary for the quantitative application of ocean color satellite data. While validation of Rrs products has been performed in low to moderate turbidity waters, their performance in highly turbid water remains poorly known. Here, we used in situ Rrs data from Hangzhou Bay (HZB), one of the world’s most turbid estuaries, to evaluate agency-distributed Rrs products for multiple ocean color sensors, including the Geostationary Ocean Color Imager (GOCI), Chinese Ocean Color and Temperature Scanner aboard HaiYang-1C (COCTS/HY1C), Ocean and Land Color Instrument aboard Sentinel-3A and Sentinel-3B, respectively (OLCI/S3A and OLCI/S3B), Second-Generation Global Imager aboard Global Change Observation Mission-Climate (SGLI/GCOM-C), and Visible Infrared Imaging Radiometer Suite aboard the Suomi National Polar-orbiting Partnership satellite (VIIRS/SNPP). Results showed that GOCI and SGLI/GCOM-C had almost no effective Rrs products in the HZB. Among the others four sensors (COCTS/HY1C, OLCI/S3A, OLCI/S3B, and VIIRS/SNPP), VIIRS/SNPP obtained the largest correlation coefficient (R) with a value of 0.7, while OLCI/S3A obtained the best mean percentage differences (PD) with a value of −13.30%. The average absolute percentage difference (APD) values of the four remote sensors are close, all around 45%. In situ Rrs data from the AERONET-OC ARIAKE site were also used to evaluate the satellite-derived Rrs products in moderately turbid coastal water for comparison. Compared with the validation results at HZB, the performances of Rrs from GOCI, OLCI/S3A, OLCI/S3B, and VIIRS/SNPP were much better at the ARIAKE site with the smallest R (0.77) and largest APD (35.38%) for GOCI, and the worst PD for these four sensors was only −13.15%, indicating that the satellite-retrieved Rrs exhibited better performance. In contrast, Rrs from COCTS/HY1C and SGLI/GCOM-C at ARIAKE site was still significantly underestimated, and the R values of the two satellites were not greater than 0.7, and the APD values were greater than 50%. Therefore, the performance of satellite Rrs products degrades significantly in highly turbid waters and needs to be improved for further retrieval of ocean color components.
Continuous Detection of Surface-Mining Footprint in Copper Mine Using Google Earth Engine
Authors: Zhang Maoxin , He Tingting , Li Guangyu , Xiao Wu , Song Haipeng , Lu Debin , Wu Cifang
Published: October 2021

Socioeconomic development is often dependent on the production of mining resources, but both opencast and underground mining harm vegetation and the eco-environment. Under the requirements of the construction for ecological civilization in China, more attention has been paid to the reclamation of mines and mining management. Thus, it is the basement of formulating policies related to mining management and implementing reclamation that detection of mining disturbance rapidly and accurately. This research carries on an empirical study in the Dexing copper mine, Jiangxi, China, aiming at exploring the process of distance and reclamation. Based on the dense time-series stack derived from the Landsat archive on Google Earth Engine (GEE), the disturbance of surface mining in the 1986–2020 period has been detected using the continuous change detection and classification (CCDC) algorithm. The results are that: (1) the overall accuracy of damage and recovery is 92% and 88%, respectively, and the Kappa coefficient is 85% and 84% respectively. This means that we obtained an ideal detection effect; (2) the surface-mining area was increasing from 1986–2020 in the Dexing copper mine, and the accumulation of mining damage is approximately 2865.96 ha with an annual area of 81.88 ha. We also found that the area was fluctuating with the increase. The detected natural restoration was appraised at a total of 544.95 ha in the 1988–2020 period with an average restoration of 16.03 ha. This means that it just restores less in general; (3) it has always been the case that the Dexing mine is damaged by mining and reclamation in the whole year (it is most frequently damaged month is July). All imageries in the mine are detected by the CCDC algorithm, and they are classified as four types by disturbing number in pixel scale (i.e., 0, 1, 2, more than 2 times). Based on that, we found that the only once disturbed pixels account for 64.75% of the whole disturbed pixels, which is the majority in the four classes; (4) this method provides an innovative perspective for obtaining the mining disturbed dynamic information timely and accurately and ensures that the time and number of surface mining disturbed areas are identified accurately. This method is also valuable in other applications including the detection of other similar regions.
Estimation of the PM2.5 and PM10 Mass Concentration over Land from FY-4A Aerosol Optical Depth Data
Authors: Sun Yuxin , Xue Yong , Jiang Xingxing , Jin Chunlin , Wu Shuhui , Zhou Xiran
Published: October 2021

The purpose of this study is to estimate the particulate matter (PM2.5 and PM10) in China using the improved geographically and temporally weighted regression (IGTWR) model and Fengyun (FY-4A) aerosol optical depth (AOD) data. Based on the IGTWR model, the boundary layer height (BLH), relative humidity (RH), AOD, time, space, and normalized difference vegetation index (NDVI) data are employed to estimate the PM2.5 and PM10. The main processes of this study are as follows: firstly, the feasibility of the AOD data from FY-4A in estimating PM2.5 and PM10 mass concentrations were analysed and confirmed by randomly selecting 5–6 and 9–10 June 2020 as an example. Secondly, hourly concentrations of PM2.5 and PM10 are estimated between 00:00 and 09:00 (UTC) each day. Specifically, the model estimates that the correlation coefficient R2 of PM2.5 is 0.909 and the root mean squared error (RMSE) is 5.802 μg/m3, while the estimated R2 of PM10 is 0.915, and the RMSE is 12.939 μg/m3. Our high temporal resolution results reveal the spatial and temporal characteristics of hourly PM2.5 and PM10 concentrations on the day. The results indicate that the use of data from the FY-4A satellite and an improved time–geographically weighted regression model for estimating PM2.5 and PM10 is feasible, and replacing land use classification data with NDVI facilitates model improvement.
GSS-RiskAsser: A Multi-Modal Deep-Learning Framework for Urban Gas Supply System Risk Assessment on Business Users
Authors: Li Xuefei , Song Liangtu , Liu Liu , Zhou Linli
Published: October 2021

Gas supply system risk assessment is a serious and important problem in cities. Existing methods tend to manually build mathematical models to predict risk value from single-modal information, i.e., pipeline parameters. In this paper, we attempt to consider this problem from a deep-learning perspective and define a novel task, Urban Gas Supply System Risk Assessment (GSS-RA). To drive deep-learning techniques into this task, we collect and build a domain-specific dataset GSS-20K containing multi-modal data. Accompanying the dataset, we design a new deep-learning framework named GSS-RiskAsser to learn risk prediction. In our method, we design a parallel-transformers Vision Embedding Transformer (VET) and Score Matrix Transformer (SMT) to process multi-modal information, and then propose a Multi-Modal Fusion (MMF) module to fuse the features with a cross-attention mechanism. Experiments show that GSS-RiskAsser could work well on GSS-RA task and facilitate practical applications. Our data and code will be made publicly available.
Steered Molecular Dynamics of Lipid Membrane Indentation by Carbon and Silicon-Carbide Nanotubes—The Impact of Indenting Angle Uncertainty
Authors: Raczyński Przemysław , Górny Krzysztof , Bełdowski Piotr , Yuvan Steven , Marciniak Beata , Dendzik Zbigniew
Published: October 2021

Due to the semi-liquid nature and uneven morphologies of biological membranes, indentation may occur in a range of non-ideal conditions. These conditions are relatively unstudied and may alter the physical characteristics of the process. One of the basic challenges in the construction of nanoindenters is to appropriately align the nanotube tip and approach the membrane at a perpendicular angle. To investigate the impact of deviations from this ideal, we performed non-equilibrium steered molecular dynamics simulations of the indentation of phospholipid membranes by homogeneous CNT and non-homogeneous SiCNT indenters. We used various angles, rates, and modes of indentation, and the withdrawal of the relative indenter out of the membrane in corresponding conditions was simulated.
Pultruded FRP Beams with Embedded Fibre Bragg Grating Optical Sensors for Strain Measurement and Failure Detection
Authors: Maldonado-Hurtado Daniel , Madrigal Javier , Penades Antonio , Ruiz Rocío , Crespo Ana Isabel , Sales Salvador
Published: October 2021

Composites have added new dimensions to the design and construction of buildings and structures. One of the wider spread composite applications in the construction industry is composite beams or pillars, which can be manufactured through pultrusion processes. These types of construction elements are usually used to withstand the weight of large loads, so their integrity must be guaranteed. Due to optical sensors’ advantages over their electrical counterparts—small sizes, low weight, non-conductive, and immunity to electromagnetic interference—and FBGs having an outstanding position among optical fibre sensors—due to their multiplexation capability and relatively easy monitoring—in this study, we propose the integration of FBG sensors for the observation and analysis of the integrity of structures made with composite beams over time. The validation test results showed the successful embedding integration of FBG-based fibre optical sensors in an FRP pultrusion beam and strain transmission up to 7500 µɛ from the composite test piece to the sensor. Additionally, we were able to anticipate the piece failure by the FBG spectrum deformation.
Colored Point Cloud Registration by Depth Filtering
Authors: Choi Ouk , Hwang Wonjun
Published: October 2021

In the last stage of colored point cloud registration, depth measurement errors hinder the achievement of accurate and visually plausible alignments. Recently, an algorithm has been proposed to extend the Iterative Closest Point (ICP) algorithm to refine the measured depth values instead of the pose between point clouds. However, the algorithm suffers from numerical instability, so a postprocessing step is needed to restrict erroneous output depth values. In this paper, we present a new algorithm with improved numerical stability. Unlike the previous algorithm heavily relying on point-to-plane distances, our algorithm constructs a cost function based on an adaptive combination of two different projected distances to prevent numerical instability. We address the problem of registering a source point cloud to the union of the source and reference point clouds. This extension allows all source points to be processed in a unified filtering framework, irrespective of the existence of their corresponding points in the reference point cloud. The extension also improves the numerical stability of using the point-to-plane distances. The experiments show that the proposed algorithm improves the registration accuracy and provides high-quality alignments of colored point clouds.
Inquiry into the Temperature Changes of Rock Massif Used in Energy Production in Relation to Season
Authors: Klempa Martin , Latal Jan , Grafova Barbora , Porzer Michal Matloch , Vrtek Mojmir , Kunz Antonin , Siska Petr
Published: October 2021

This research was undertaken to perform and evaluate the temperature measurement in the ground utilized as an energy source with the goal to determine whether significant temperature variations occur in the subsurface during the heating season. The research infrastructure situated on our University campus was used to assess any variations. The observations were made at the so called “Small Research Polygon” that consists of 8 monitoring boreholes (Borehole Heat Exchangers) situated around a borehole used as an energy source. During the heating season, a series of monthly measurements are made in the monitoring boreholes using a distributed temperature system (DTS). Raman back-scattered light is analysed using Optical Frequency Time Domain Reflectometry (OTDR). Our results indicate that no noticeable changes in temperature occur during the heating season. We have observed an influence of long-term variations of the atmospheric conditions up to the depth of a conventional BHE (≈100 m). The resulting uncertainty in related design input parameters (ground thermal conductivity) was evaluated by using a heat production simulation. Production data during one heating season at our research facilities were evaluated against the design of the system. It is possible to construct smaller geothermal installations with appropriate BHE design that will have a minimal impact on the temperature of the surrounding rock mass and the system performance.
The Spatiotemporal Data Fusion (STDF) Approach: IoT-Based Data Fusion Using Big Data Analytics
Authors: Fawzy Dina , Moussa Sherin , Badr Nagwa
Published: October 2021

Enormous heterogeneous sensory data are generated in the Internet of Things (IoT) for various applications. These big data are characterized by additional features related to IoT, including trustworthiness, timing and spatial features. This reveals more perspectives to consider while processing, posing vast challenges to traditional data fusion methods at different fusion levels for collection and analysis. In this paper, an IoT-based spatiotemporal data fusion (STDF) approach for low-level data in–data out fusion is proposed for real-time spatial IoT source aggregation. It grants optimum performance through leveraging traditional data fusion methods based on big data analytics while exclusively maintaining the data expiry, trustworthiness and spatial and temporal IoT data perspectives, in addition to the volume and velocity. It applies cluster sampling for data reduction upon data acquisition from all IoT sources. For each source, it utilizes a combination of k-means clustering for spatial analysis and Tiny AGgregation (TAG) for temporal aggregation to maintain spatiotemporal data fusion at the processing server. STDF is validated via a public IoT data stream simulator. The experiments examine diverse IoT processing challenges in different datasets, reducing the data size by 95% and decreasing the processing time by 80%, with an accuracy level up to 90% for the largest used dataset.
Smart Control and Energy Efficiency in Irrigation Systems Using LoRaWAN
Authors: Sánchez-Sutil Francisco , Cano-Ortega Antonio
Published: October 2021

Irrigation installations in cities or agricultural operations use large amounts of water and electrical energy in their activity. Therefore, optimising these resources is essential nowadays. Wireless networks offer ideal support for such applications. The long-range wide-area network (LoRaWAN) used in this research offers a large coverage of up to 5 km, has low power consumption and does not need additional hardware such as repeaters or signal amplifiers. This research develops a control and monitoring system for irrigation systems. For this purpose, an irrigation algorithm is designed that uses rainfall probability data to regulate the irrigation of the installation. The algorithm is complemented by checking the sending and receiving of information in the LoRa network to reduce the loss of information packets. In addition, two temperature and humidity measurement devices for LoRaWAN (THMDLs) and an electrovalve control device for LoRaWAN (ECDLs) were developed. The hardware and software were also designed, and prototypes were built with the development of the electronic board. The wide coverage of the LoRaWAN allows the covering of small to large irrigation areas.
Situational Awareness: The Effect of Stimulus Type and Hearing Protection on Sound Localization
Authors: Fostick Leah , Fink Nir
Published: October 2021

The purpose of the current study was to test sound localization of a spoken word, rarely studied in the context of localization, compared to pink noise and a gunshot, while taking into account the source position and the effect of different hearing protection devices (HPDs) used by the listener. Ninety participants were divided into three groups using different HPDs. Participants were tested twice, under with- and no-HPD conditions, and were requested to localize the different stimuli that were delivered from one of eight speakers evenly distributed around them (starting from 22.5°). Localization of the word stimulus was more difficult than that of the other stimuli. HPD usage resulted in a larger mean root-mean-square error (RMSE) and increased mirror image reversal errors for all stimuli. In addition, HPD usage increased the mean RMSE and mirror image reversal errors for stimuli delivered from the front and back, more than for stimuli delivered from the left and right. HPDs affect localization, both due to attenuation and to limitation of pinnae cues when using earmuffs. Difficulty localizing the spoken word should be considered when assessing auditory functionality and should be further investigated to include HPDs with different attenuation spectra and levels, and to further types of speech stimuli.
Ensuring the QoE-Related Fairness to Reduce the User Abandonment Ratio
Authors: Mazur Izabela , Rak Jacek , Nowicki Krzysztof
Published: October 2021

Nowadays, it is quite a challenge for app owners to keep users engaged with an app. Currently, the level of user abandonment is one of the key parameters that application owners are interested in. To meet these challenges, we conduct an extended study of a previously proposed solution that significantly reduces the abandonment rate of a given application. The investigated solution is based on the methods of fairness using the QoE and QoS approach. This paper shows that application abandonment ratios can be reduced by using an appropriate approach to fair bandwidth allocation. Adjusting the bandwidth allocation to users, taking into account the quality of the user experience, has a more effective effect on reducing app abandonment ratios than if quality of service is taken into account. This is because the users make the decision to abandon the application based on their feelings rather than technical parameters. In order to effectively reduce application abandonment ratios, a suitable bandwidth allocation algorithm must be used. This paper presents the impact of using different algorithms on the abandonment ratio and compares the popularly used algorithms and the previously proposed bandwidth allocation algorithm.
Determination of Fosetyl-Aluminum in Wheat Flour with Extract-Dilute-Shoot Procedure and Hydrophilic Interaction Liquid Chromatography Tandem Mass Spectrometry
Authors: Li Xianjiang , Wang Sheng , Guo Zhen , Li Xiuqin , Zhang Qinghe , Li Hongmei
Published: October 2021

Fosetyl-aluminum is a widely used ionic fungicide. This pesticide is not amenable to the common multi-residue sample preparation methods. Herein, this paper describes a novel method for the simple and sensitive determination of fosetyl-aluminum residue in wheat flour. The sample preparation method involved extraction with water under ultrasonication and subsequent dilution with six-fold acetonitrile. The fosetyl-aluminum concentration was determined by hydrophilic interaction liquid chromatography tandem mass spectrometry. The limit of detection and quantification were only 5 and 10 ng/g, respectively, which meet the requirement of the current European legislation. Matrix-matched linearity (r2 = 0.9999) was established in the range of 10–2000 ng/g. Satisfactory recoveries were achieved in the range of 95.6% to 105.2% for three levels of spiked samples (10, 50, and 100 ng/g). Finally, the method was applied to analyzing 75 wheat flour samples produced in four provinces in China. Two samples were positive with concentrations over the limit of detection. This is the first method focusing on fosetyl-aluminum determination in wheat flour with an extract-dilute-shoot strategy and is very promising for the routine quality control of fosetyl-aluminum in similar cereal matrices.
Восточная экспедиция Вацлава Серошевского и Бронислава Пилсудского 1903 года: Eastern Expedition of Wacław Sieroszewski and Bronisław Pilsudski in 1903
Authors: BELIAEVA-SACHUK Veronika
Published: October 2021

The article presents the history of the Eastern Expedition of 1903, which was organized by the Imperial Russian Geographical Society. It was organized with the assistance of well-known Russian scientists and public figures. The purpose of the expedition was to conduct basic research in East Asia on the territory of north-eastern Manchuria (Dauria), in Japan, Korea and China. On the ground, the members of the expedition Sieroszewski and Piłsudski were actively supported by Russian officials and official representatives of the authorities. Due to the deterioration of Russian-Japanese relations, as well as the high cost of living in Hokkaido, the expedition ended in the autumn of 1903, having passed only two stages – research in Manchuria and Hokkaido. Three collections were collected during the expedition – on the culture of Barguts, Solons, Ainu and Japanese – which are kept in Kunstkamera.
The Berlin plans of Kamianets-Podilskyi
Authors: OPYRCHAŁ Leszek , OPYRCHAŁ Urszula , NAHNYBIDA Ruslan
Published: October 2021

The article discusses five manuscript plans of Kamianets-Podilskyi which are present in Berlin. Four of them are available in the collections of the Staatsbibliothek zu Berlin (The Berlin State Library) and one – at the Geheimes Staatsarchiv Preußischer Kulturbesits (Secret State Archive of Prussian Cultural Heritage). Despite the fact that the list of maps and plans of areas present in the former socialist countries in Europe was published in 1976, these plans remained unknown to both, Polish and Ukrainian researchers analysing the history of fortification. Three of the discussed four plans are especially important. The first one is the plan by Christian Dahlke, an engineer who fortified Kamianets-Podilskyi, the later commanding officer of this fortress. The second one is an anonymous plan from 1740, most probably created during the inspection of the fortress reinforcements which was carried out by Saxon engineers. The third one is the plan by G. de Hundt. Identical versions of this plan are located in Cracow, in Vienna and in Moscow. Due to the fact that both, Austria as well as Russia, conducted military activities in Podolia in the 18th century, nearly identical plans of the Kamianets-Podilskyi Fortress, present in the capitals of those countries, indicate that G. de Hundt worked not only for the Polish king, but also for foreign intelligences.
Keanekaragaman dan Pola Sebaran Gastropoda di Perairan Juanga Kabupaten Pulau Morotai
Authors: Idrus Sukarmin , Alwi Djainudin , Nurafni Nurafni , Kadafi M
Published: October 2021

Ekosistem padang lamun merupakan habitat penting bagi kelangsungan kehidupan biota laut yang berasosiasi, bahkan menjadi penyokong salah satu alternatif  mata pencaharian dan pendapatan masyarakat yang sudah lama tinggal di wilayah pesisir. Gastropoda banyak dimanfaatkan oleh masyarakat, cangkangnya dapat dijadikan sebagai bahan perhiasan dan dagingnya dapat dijadikan sebagai sumber protein. Gastropoda dan Bivalvia yang dapat dimakan diantaranya Strombus luhuanus, Strombus gibberulus, Nerita maxima dan Gafrarium tumidum. Menelaah pentingnya manfaat gastropoda bagi lingkungan dan sumber daya hayati perairan, maka perlu dilakukan penelitian tentang struktur komunitas dan pola sebaran gastropoda penghuni lamun. Penelitian ini dilaksanakan pada bulan November sampai Desember 2019. Berlokasi di Perairan Pandanga Kecamatan Morotai Selatan Kabupaten Pulau Morotai. Pengambilan sampel menggunakan metode transek kuadrat. Dimana kuadrat yang digunakan berukuran 1x1 m, jarak penempatan kuadrat 10 meter  di mulai dari meteran 0-50 meter sehingga penempatan kuadrat untuk masing-masing transek sebanyak 6 kali, sehingga secara keselurahan kuadrat sebanyak 54 kali penempatan kuadrat  di semua stasiun penelitian. Analisis data yang digunakan adalah keanekaragaman jenis, kemerataan, indeks dominasi, kepadatan dan pola sebaran. Hasil penelitian keanekaragaman jenis (H’) termasuk kategori “sedang’’, indeks kemerataan (E) tergolong “tinggi’’ dan indeks dominansi (C) kategori “rendah’’. Sedangkan analisis pola sebaran gastropoda stasiun I sampai stasiun III termasuk pola sebaran mengelompok.
KONSTRUKSI MAKNA LOVE YOYSELF DAN MENTAL HEALTH AWARNESS BAGI ARMY (KELOMPOK PENGGEMAR BTS) TERHADAP LAGU DAN CAMPAIGN MILIK BTS
Authors: Yasmin Attia Nabilla , Fardani Rhae Ayu
Published: October 2021

ABSTRACTLove yourself / self love is interpreted as a condition when we can accept and appreciate ourselves, accept the advantages and disadvantages. BTS is a Korean boy band that has garnered international success, and is one of the bands that diligently voiced campaigns for ARMY (BTS fans) about self love through an album titled Love Yourself. The purpose of this study was to study how the ARMY had the meaning of Love Yourself and Mental Health Awareness of BTS songs. The method in this study is a qualitative method that addresses descriptive phenomena. The theory used to support this research is Dialogue Theory by Carl Rogers. In this study, it is used to discuss communication interactions that are formed from the actions and interactions of ARMY fans in interpreting self-love from the Love Yourself album series by BTS.Keywords : Love Yourself, Self-Love, Mental Health Awareness, BTS, Konstruksi Makna, ARMY.
KEMUNGKINAN ELABORASI: KUALITAS SEBAGAI PESAN DALAM MEMPENGARUHI KEPUASAN DAN MINAT BERKUNJUNG KEMBALI
Authors: Alhasbi Faruq , Amri Saiful
Published: October 2021

The tourism trend was change, marked by an increased in the exploration of cultural and historical tourism. The government through development program also support this phenomenon since 2014, with aim to increase the income through tourism sector. However, museum as cultural destinations have inverted trend. Quality as a message play important role to attract tourist. This research uses elaboration likelihood perspective to examine how quality as a message affects revisit intention. The result of quantitative process using SmartPLS showed that the effect of quality on tourist satisfaction is higher than quality on revisit intentions and the indirect effect of quality on revisit intention through tourist satisfaction is stronger than direct effect. It described that elaboration using central route is more effective to generating intention to travel back and intention to recommend. These results recommend that managers should improve some existing facilities and provide several supporting facilities or new facilities to increase visitor satisfaction. The elaboration by visitors proves that the use of the central route is more effective for museum marketing.
PRO-KONTRA WACANA PELEGALAN POLIGAMI DALAM ATURAN DAERAH (QANUN) DITANAH RENCONG ACEH
Authors: Husaidi Husaidi , Andika Sulfia , Trisdiani Cindy , Hasan Khairul , Maulida Desi
Published: October 2021

The discourse on the legalization of polygamy that the Aceh Government wishes to set forth in the Family Qanun has become one of the issues that has spread among the community so that it has drawn pros and cons and products. As a special autonomous region that has the authority to carry out Islamic syari'at, of course this is relevant if it is stated in a Qanun, but people's perceptions certainly cannot be ignored. This research was conducted using qualitative methods with secondary data analysis techniques such as literature studies and using the Narative Review scheme. The results showed that although Aceh is an area that practices Islamic Syari’at, if it is in accordance with its wishes regarding domestic life (polygamy) it is not automatically accepted so that the pros and cons cannot be avoided. However, the fact that the practice of polygamy must be regulated in the legal system is important given the many cases of betel marriage which of course are regulated and emphasized the terms and sanctions that polygamy practice will pass.
Cover
Authors: Editorial Tim
Published: October 2021

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PENGALAMAN MENGKONSUMSI BERITA ONLINE: PERSPEKTIF GENERASI MILENIAL DI JAWA TENGAH
Authors: Ikasari Prinisia Nurul , Christiani Lintang Citra
Published: October 2021

Most of the people who access the internet are millennial generation, that is, the generation born between 1982 and 2000.  Digitalization forces the mass media in Indonesia to participate in meeting the demands of society's need for up to date information. This study aims to examine the practices of the millennial generation in consuming online news.  In particular, this study aims to reveal the diversity of meanings that arise from the experiences of audiences when consuming online news. This study applies a qualitative approach to the reception method. The comment column provides a reference space for itself to continue consuming the next news activity on the mass media or not. Comments can even be termed as a filter for news that millennial generation will consume. Storytelling as millennial generation's online news consuming experience. From the point of view of millennials storytelling helps facilitate their imagination through visual means.
PRO DAN KONTRA UNDANG-UNDANG NOMOR 40 TAHUN 1999 TENTANG PERS SEBAGAI LEX SPECIALIS ( Memaksimalkan Profesionalitas Pers dalam Menjalankan Aktifitas Jurnalistik )
Authors: Amri Saiful , Maulina Putri , Zuhri Al
Published: October 2021

The aims of this study is to examine how the pros and cons of Law Number 40 of 1999 concerning the Press as a lex specialis from a legal point of view. This research is a descriptive qualitative study with a literature review approach, which focuses on discussing the substance of the law and the issues under study in accordance with the relevant literature. The results of the study illustrate that there are pros and cons related to the position of the Law. No.40 of 1999 concerning the press as lex specialis. The pro side illustrates that press activities and various disputes that arise in it when referring to the press law that has been specially formulated is used to solve press problems specifically, so that it is considered a lex specialis. On the other hand, it emphasizes that the press law from various sides does not meet the requirements as a lex specialis because there is no clear legal basis for reference from any parent law.
TIC aplicadas a la educación en el Grado de Pedagogía y Educación Primaria. Presentaciones multimedia: principios didácticos y aspectos técnicos para su producción.
Authors: Llorente Cejudo María del Carmen , Barroso Osuna Julio Manuel , Palacios Rodríguez Antonio de Padua , Martín Párraga Lorena
Published: October 2021

Esta colección supone un total de 26 píldoras formativas, a modo de objetos de aprendizaje, fundamentadas en los contenidos que componen la materia de Tecnologías de la Información y la Comunicación Aplicadas a la educación y Tecnología Educativa de los Grados de Educación Primaria y de Pedagogía de la Facultad de Ciencias de la Educación de la Universidad de Sevilla.
La colección es una producción audiovisual con carácter didáctico, y estará compuesta por 26 videos cortos a modo de objeto de aprendizaje, de no más de 4 minutos de duración como máximo cada uno. Los videos se incorporarán en la plataforma de enseñanza telemática Blackboard en los diferentes temas que el alumno irá abordando a lo largo de la asignatura, y el objetivo fundamental que se persigue es:

- Profundizar, reforzar y ejemplificar los contenidos de aprendizaje que los alumnos han trabajado a lo largo de los diferentes bloques temáticos de la asignatura.
- Diseñar y producir un material multimedia online y offline que le permita a los alumnos reforzar los contenidos trabajados en la asignatura.
- Hacer accesible contenido relevante para la docencia que no puede estar presente en el aula de otra manera.