bluuebunny/crossref_metadata_2025_split huggingface dataset:
A multi‐step airport delay prediction model based on spatial‐temporal correlation and auxiliary features
Authors: Zhang Hao , Song Chunyue , Zhang Jie , Wang Hui , Guo Jinlong 
Published: May 2021

AbstractAirport delay prediction system is fundamental to intelligent air traffic management. However, the prediction of airport delay is affected strongly by spatial‐temporal dependencies and other exogenous dependencies, which would bring serious challenges in prediction. In this paper, the APR‐LSTM model is proposed to address these challenges. The model is driven by the real‐world flight operation data. In the proposed prediction model, the dynamic air traffic delay networks are fed into PageRank algorithm to capture the dynamic spatial dependencies. The input sequences of airport delay vector is weighted by spatial dependencies before sending into the long short‐term memory network (LSTM) and sequence to sequence model, which can realise the multi‐step prediction and the joint mining of spatial‐temporal dependencies. Subsequently, the temporal attention mechanism and auxiliary features are introduced to obtain the long‐term temporal dependencies by exploring the relevance of different time steps and improve the accuracy of prediction model. Furthermore, the results of comparative experiments indicated that the proposed model achieve the best performance compared with other benchmark models. Finally, the spatial‐temporal correlation of different airports, the delay characterisations of networks and the application of prediction results are demonstrated in detail, enabling the interpretability of APR‐LSTM model.
A systematic literature review of vehicle speed assistance in intelligent transportation system
Authors: Asadi Mehrdad , Fathy Mahmood , Mahini Hamidreza , Rahmani Amir Masoud 
Published: May 2021

AbstractDue to the emergence of new technologies over the past decade, vehicle speed assistance systems in intelligent transportation systems have frequently been discussed. Up to now, a systematic literature review has not been presented to discover and evaluate the different vehicle speed assistance approaches for on‐road vehicles in intelligent transportation systems. To overcome this issue, this research identified peer‐reviewed articles published in the most well‐known libraries from 2011 to 2020. 79 primary studies were then projected and a systematic analysis of the selected literature was conducted. The findings show different driving goals, namely eco‐driving, safety, comfort, travel time improvement as well as the high‐level objectives addressed by vehicle speed assistance systems. The analytical discussions are provided to show different perspectives, properties and limitations of the existing solutions. This analysis allows to provide future challenges and directions in this field of research.
Design of a switchable microstrip bandstop filter with signal/dual stopbands
Authors: Tang Ching‐Wen , Fan Yang‐Hsin 
Published: May 2021

AbstractA switchable bandstop filter is proposed herein. In order to achieve switchability between a single ultra‐wide stopband and dual wide stopbands, a complex process of coupling synthesis is not necessarily required. By setting two diodes at the input and output port separately, this bandstop filter can be switched between single and dual stopbands. An exemplary bandstop filter with central frequency at 2 GHz is fabricated on Rogers RO4003C, a substrate with a thickness of 0.813 mm and an area occupying 29.3 × 29.7 mm. Agreement between the theoretical and measured results can validate the proposed circuit.
A modified design method of pulse repetition frequency for synthetic aperture radar system based on the single point equivalent squint model
Authors: Liang Yujie , Liang Yi , Zhang Gang , Xing Mengdao 
Published: May 2021

AbstractPulse repetition frequency (PRF) is an essential parameter in synthetic aperture radar (SAR). However, a small PRF value will cause spectrum ambiguity and a large value will increase the computational complexity. In highly squinted SAR imaging with maneuvering platform, the traditional PRF design methods used are airborne and space borne. SAR systems perform with a low precision because of the complex geometric configuration and system deviations. In order to adapt to the maneuvering platform SAR system, a modified design method of PRF is proposed in this paper. First, the azimuth spectrum of echoes is analyzed by establishing the SAR geometry base on the single point equivalent squint (SPES) model. Subsequently, the calculation of azimuth bandwidth is transformed into an optimization problem, and the lower limit of PRF is obtained by the Golden Section Method. Besides, the criteria of spectrum unambiguity and time sequence constraints in PRF design is also discussed in detail. Simulation experiments demonstrate the feasibility and accuracy of the proposed method.
Bioresonanztherapie bei Allergien und Unverträglichkeiten
Authors: Schönenstein Judith 
Published: May 2021

ZusammenfassungDie Bioresonanztestung und -therapie kann oftmals sehr gut dabei helfen, Allergene oder Unverträglichkeiten ausfindig zu machen und die Allergiesymptome zu lindern oder gänzlich verschwinden zu lassen. Von entscheidendem Vorteil dabei ist, dass diese Test- und Therapiemethode schnelle Ergebnisse bringt, schmerzlos und frei von Nebenwirkungen ist und statt standardisierter Behandlungsmethoden einen individuell angepassten Therapieplan ermöglicht.
Failing Memory in Nonaffective Psychosis and Prolactin Response to
12.5 µg i.v. TRH
Authors: Spoov Johan , Bredbacka Per-Erik 
Published: May 2021

Dear EditorThe increase in plasma prolactin at 15 min following administration of 12.5
µg TRH i. v. (∆prol) was introduced in Pharmacopsychiatry as
an inverse estimate of tuberoinfundibular dopamine (TIDA) activity 1. We used the unpublished data set in 20
participants with nonaffective psychosis from our 1991 study utilizing ∆prol
2 and here report new results with its
association with memory.
Analysis of an innovative water-cooling solution for photovoltaic-thermal systems
Authors: Hudişteanu V S , Cherecheş N C , Verdeş M , Ciocan V , Popovici C G , Ţurcanu F E , Balan M C 
Published: May 2021

Abstract
The research is focused on realizing a comparative analysis regarding the parameters of an active water-cooling solution for improving the efficiency of monocrystalline silicon photovoltaic (PV) panels. The efficiency of the photovoltaic panels is dependent on the climatic conditions, varying especially with the change of the intensity of the solar radiation and of the operating temperature. The cooling of the photovoltaic panels is a viable solution for both fixed and variable positions of the system. Numerical modelling was carried out on a photovoltaic panel integrated into the façade of a buildings. The water-cooling solution consist in using a water film heat exchanger attached on the backside of the PV panel. The parameters of the heat agent analysed were the temperature, velocity and width of the water film. The optimal water film heat exchanger solution was obtained for a thickness of 3 mm of water film, a velocity of 0.01 m/s and an operating temperature of 20 °C. In this case, the thermal power extracted by the film exchanger reaches values of 140.8 W, with an overall heat exchange coefficient of 48.6 W/m2.K. During the study, the global heat transfer coefficient and the raise off efficiency is determined for each case.
Removing ammonium from water intended for human consumption. A review of existing technologies
Authors: Radu G , Racoviteanu G 
Published: May 2021

Abstract
Ammonium is an inorganic compound present in water at pH<9. Ammonium has no toxic effects on human health, but its presence in water can indicate a water pollution. The presence of ammonium in groundwater source can be largely determined by the reducing conditions from the aquifer, while in surface water sources it is found only in polluted waters. In water supply systems, the presence of excess ammonium in raw water is not desirable because it can generate problems such as: unpleasant odors, microbial development in the water distribution system, reducing the efficiency of chlorine disinfection and increased chlorine consumption. Over time, several methods have been developed to reduce the concentration of ammonium from water, these being physical, chemical, biological or a combination of these methods. The article presents a review of the technologies currently used to reduce /oxidize ammonium from water. These mainly includes: ion exchange and adsorption, biological filtration, air stripping, breakpoint chlorination and reverse osmosis.
Behaviour of wedge foundations under axial compression
Authors: Ciutina A , Mirea M , Ciopec A , Ungureanu V , Buzatu R , Morovan R 
Published: May 2021

Abstract
Wedge or tapered foundations of buildings, which have greater top cross-sections than bottom ones, are not often considered as a design option due to their shape. However, precast wedge foundations could be considered as “quick foundation systems” in case of light structures which should be rapidly installed. Similar to tapered piles, this foundation shape can offer besides the bottom base resistance, a good lateral contact between the inclined concrete faces and the surrounding soil. The paper presents the experimental results of two wedge foundation specimens subjected to axial compression tests conducted in accordance to actual standards. The results recorded on sites are presented under the form of pressure-settlement diagrams and are compared with similar values recorded for usual prismatic foundations. The study is completed by an environmental impact analysis made on the two systems along with potential benefits and loads, beyond the system boundary, at the foundations’ end-of-life.
Seismic insulation of the base for buildings with masonry structures
Authors: Abdulfattah Abdulfattah Zainulabdeen K. , Draghici Robert 
Published: May 2021

Abstract
The purpose of this application is to see whether or not it is cost-effective to insulate the base of ordinary houses, made of load-bearing masonry. Certainly, the isolation of the base is suitable for structures of high importance, as well as historical monuments, but the common man does not live in a structure of high importance. Is the solution cost-effective for the average person? To test this hypothesis, we proposed a low structure (GF + 1) of confined masonry, located in a seismic area (Bucharest, ag = 0.30g, Tc = 1.6 sec) urban. The example is a multifamily duplex home.
The proposed structure being low, its own vibration period is small enough to be located in the area of maximum dynamic amplification in the response spectrum. For the simplified analysis we analysed starting from the hypothesis of a seismic force represented by the equivalent lateral force, according to the provisions of P100-1/2013. The basic concept of base isolation, respectively the decoupling of the structure from the foundation ground, also implies the increase of the own period sufficiently so that the structure is no longer in the area of maximum dynamic amplification of the response spectrum.
The effects of thermal insulation on the interior noise level during the day. A case study of a 1960 block of flats located in downtown Bucharest
Authors: Toma V.V. , Antonie S. , Catalina T. 
Published: May 2021

Abstract
The issues related to the propagation of outside noise to the occupied spaces are more frequent, especially in urban areas where different types of noises are present (constructions, traffic, etc.). It is medically proven that noise has negative effects on health: anxiety, lower intellectual performances, stress, fatigue or higher blood pressure. With the national refurbishment program of old buildings the constructors are insulating and replace old wood frame windows with more energy efficient ones. Despite the clear benefits in terms of energy reduction there are still some questions about the sound insulation of the facades. If the windows replacement is done in a wrong way the situation can be aggravated as air and noise can overpass. In this paper using experimental measurements it is evaluated the impact of thermal refurbishment of an apartment on the acoustic comfort. The data showed that the windows represent the weak part of the facade and incorrect mounting severely affected the indoor sound pressure level.
GIS, a tool for improving the road network management
Authors: Toma M G , Ungureanu R D , Dicu M 
Published: May 2021

Abstract
Transport is a significant branch of the economy due to its contribution to the creation of gross domestic product. In order to ensure a reliable transport network that boosts trade and economic growth, prior to the construction of new national roads and motorways, it is necessary to ensure a proper technical condition of the road. Therefore, road network administrators have to attain a balance between the program of maintenance / repair / rehabilitation activities and the works that can be executed within the limits of the available funds so that the investment achieves the highest profitability and the road network either viable. There are currently a number of factors that influence the decision-making process in prioritizing maintenance work as well as allocating funds so that the investment achieves the highest return. Therefore, a multi-criteria decision-making approach is needed to ensure a balance between the program of maintenance / repair / rehabilitation activities and the works that can be executed within the limits of available funds. In the present paper, the authors proposes to develop a decision support model based on the principles of the GIS information systems, to help the road network administrators to take decisions that prioritize the maintenance works.
Ecotourism Development Strategies of Pulau Merah Beach, Banyuwangi, Indonesia
Authors: Sumarmi  , Bachri S , Irawan L Y , Sholeha A W , Aliman M 
Published: May 2021

Abstract
The study aimed to explain the development of ecotourism management strategies in Pulau Merah beach, Banyuwangi regency, Indonesia. Various aspects need to be considered by local government to increase tourism visit by monitoring 1) the increasing number of visitors, 2) estimated days of stay, and 3) cultural involvement as a tourist attraction. As natural tourist destination, Pulau Merah beach also are able to support the environment. It needed to be considered by the tour manager, so that ecotourism strategy needs to be applied. The research was used descriptive method with qualitative and quantitative techniques. The data used primary data through in-depth interview and secondary data through literature, documentation, and publication of tourism management. Process Hierarchy Analysis (AHP) was used to measure the implementation of ecotourism strategy in Pulau Merah beach. Through the research, an alternative policy and development should be considered by the local government and communities to support the environment and ensure the sustainability of natural tourism quality. Therefore, ecotourism policy becomes one of the main alternatives as a result of data collection and analysis following the urgency of the field so that it highly recommended to be applied.
Mapping Criminality During A COVID-19 Pandemic in Lumajang District
Authors: Pratama V , Yushardi  , Mutrofin  
Published: May 2021

Abstract
During the Covid-19 pandemic, it’s not just health, but it also creates economic problems. Just as an economic downturn is likely to increase street crimes such as thieves and muggers. The purpose of this study is to discover and map crime in Lumajang district and describe the reasons for the increase in theft during the Covid-19 pandemic. This research is a qualitative research with aphenomological approach. This research method seeks to reveal the universal meaning of thephenomenon experienced by the Lumajang community and is mapped based on the location of street crime using GIS. (Geographic Information System). The research data was taken from various interviews and field observations that focused on the increase in street crime during the Covid-19pandemic in Lumajang Regency by conducting an analysis of criminological theory, which then the results of this study were presented in the form of Mapping through GIS. The benefit of this research is to determine the increase in street crime during a pandemic in the form of mapping through theGeographical Information System.
The land transportation network in Semarang City in the early 20thcentury
Authors: Utama N J , Atno  
Published: May 2021

AbstractSemarang City is a fascinating city to be studied historically through various aspects, including transportation problems. This paper tries to examine the condition of the transportation network in Semarang at least in the first 30 years of the 20th century. The main problem in this paper is how the condition of the transportation network in Semarang and its impact on Semarang people in the early 20th century. So far, the concern about historical studies in Semarang regarding transportation has always been regarding the railway network centered in this city. However, the railway network is only connecting Semarang with other areas in Central Java and beyond. What about the transportation conditions in the city of Semarang itself?. Of course, the train is not the primary mode if we talk about transportation mode inside the city. In the land transportation network in the big cities in the Dutch East Indies at the end of the 19th century, the mode of transportation using animal power played a huge role. However, changes began to occur when modern transportation modes, such as bicycles, motorbikes, cars, and trams, entered the Dutch East Indies, including Semarang City, at the beginning of the 20th century. The significant impact that occurs is that this mode of transportation provides a new network pattern in transportation, especially the land transportation network in Semarang. This study uses the historical method, which consists of four stages: heuristics, source criticism, interpretation, and historiography. The results of this study indicate that there are complex dynamics in the development of land transportation in Semarang, besides that technology plays an essential role in this development.
Identification and Phylogenetic Analysis of Drosophila melanogaster based on ITS 2 rDNA Sequences
Authors: Oktarianti R , Sholihah A , Masruroh D , Wathon S , Senjarini K 
Published: May 2021

Abstract
The Internal Transcribed Spacer 2 (ITS 2) is a small non-coding region located inside the nuclear ribosomal DNA cluster. ITS 2 sequence variability is widely used in taxonomy and molecular phylogeny. Based on this molecular marker, this study aimed to identify and to construct phylogenetic analysis of D. melanogaster from our laboratory. The phylogenetic tree was constructed after analysis on DNA sequence was conducted by encoding its ITS2 using Unweight Pair Group (UPGMA) method. The result showed that our D. melanogaster wild type and all mutant strains have high similiarity to D. melanogaster 28 S ribosomal RNA gene partial sequence (Gene bank Acc GU 597379.1) (identity score up to 99%). Phylogenetic tree showed that D. melanogaster plum mutant was closely related to D. melanogaster 28 S ribosomal RNA gene partial sequence (Gene bank Acc GU 597379.1), they also belonged to one cluster. Next to this cluster are sepia and clot mutant, in addition to the wild type and black mutant in one cluster. All the mutants and wild type belonged to one clade. While the vestigial mutant stayed in the different clade.
Quo Vadis History Textbook (Internalization of Multicultural Values and Nationalism in High School History Subject)
Authors: Fauzan R , Nashar N , Nurhasanah A 
Published: May 2021

Abstract
History textbooks as official history are historiographical works which in their use are permitted for educational purposes. The problem in the study of historical textbooks is that there is a dichotomy in the material orientation of the doctrine of Nationalism and multiculturalism, where these two values should be an integral and inseparable part. The internalization of the values of multiculturalism and nationalism needs to be understood by teachers and students in order to know the national identity without ignoring the sides of pluralism and multiculturalism as a form of socio-historical diversity of students as Indonesian society. The method used in this research is descriptive qualitative method with document study techniques (content analysis). This study aims to describe the process of planting multicultural values and the doctrine of nationalism in textbooks in building national identity (national character building) in learning history in the classroom.
Local Wisdom Values: Human And Nature Relations In The Belu People
Authors: Martoredjo N T , Fios F , Benny  
Published: May 2021

Abstract
Environmental problems have become a huge problem in the world level including for Indonesia. This paper is a study of environmental issues midst the development progress in Indonesia. Environmental problems need serious attention in order to preserve nature for the future of human life. Preserving the environment can be pursued by protecting and preserving the environment through serious attention to the values of local wisdom. With a qualitative descriptive approach, the values of local wisdom that support environmental conservation are explored. As a nation that has many regional cultures, Indonesia has a lot of local wisdom values that thrive in every region as a form of harmony dialectic in human and natural relations. The attention of this research is on the ethical values contained in the local wisdom that grows in the Belu people. These values exist in the traditions of Badu (prohibition) and Sau (reap the harvest) and the tradition of weaving cloth. These local wisdom values need to be maintained and developed so that they can become collective awareness in managing nature in realizing sustainable development goals. The values of local wisdom can become actual guidelines in preserving nature.
Historical learning based on outdoor learning and environmental insight as implementation of the utilization of Gua Suci sites in Tuban
Authors: Khakim M N L , Sulistyo W D , Yuliati  , Hudiyanto R R , Afhimma I 
Published: May 2021

AbstractCultural heritage is an important state asset which becomes the local identity of the region. Tuban is one of the areas with potential historical heritage sites. Utilization of historical heritage sites is often associated with historical learning. The purpose of writing this article is to use historical heritage sites as a learning source that can build student interest and motivation. The research method uses in this article was the literature study method as part of a qualitative method by collecting and analyzing historical source through books, articles, archives, notes and reports. The result of the study based on review literature obtained a discussion of historical heritage sites namely Gua Suci in Tuban with a combination of outdoor learning and environmental insight. Gua Suci is a man-made cave composed of karst rocks. Therefore, the activity of utilizing Gua Suci site based on outdoor learning and environmental insight is expected new atmosphere for the student with the step that has been arranged. The implementation of the outdoor learning method at Gua Suci sites has indirectly carried out environmentally-friendly activities while maintaining historical and cultural values.