bluuebunny/crossref_metadata_2025_split huggingface dataset:
Loss reduction technical measures for DG-containing distribution networks based on maximizing loss reduction benefits
Authors: Chen Xin , Wang Guo 
Published: October 2024

Abstract
Loss reduction renovation of distribution networks is an important measure to improve the economic operation of distribution networks. The proportion of installed capacity of distributed generation (DG) in distribution networks will have an impact on the solutions of loss reduction measures, and the benefits generated by different solutions of loss reduction measures will differ to a greater or lesser extent. In order to maximize the loss reduction benefits, various loss reduction measures such as distribution network reconfiguration, distribution substation replacement, conductor replacement, and reactive power compensation, etc. were combined in this paper. The objective function of maximizing the loss reduction benefits after 10 years was used for mathematical modeling, and the Coati Optimization Algorithm (COA) was used to select and optimize the loss reduction technical measures. Finally, a distribution network with a distributed power supply was analyzed as an example to verify the effectiveness of the model.
Research on data processing of 3D modeling by images based on helicopter oblique photogrammetry
Authors: Mu Daocheng , Guo Shanchuan , Sun Jinquan , Zeng Lingsha 
Published: October 2024

Abstract
The use of tilting photogrammetry technology to build a refined urban 3D model has become the industry research hotspot with the rapid development of China’s “digital city.” To investigate and analyze the methodology of 3D data modeling using helicopter oblique photogrammetry, a 3D model was generated for a study area covering approximately 34 km2. This paper delves into the technical process of 3D modeling data processing utilizing helicopter oblique photogrammetry, and it examines the precision of the model results alongside a comprehensive technical analysis. The results show that the results of the process are consistent with the relevant specifications of the first-order 3D model landscape. Compared with the traditional 3D model, the method has obvious progress in efficiency and has a very wide application prospect.
Exploring the drag reduction caused by a combined spike and jet setup for a hypersonic blunt object at low elevations
Authors: Zhang Lingyun , Lei Juanmian , Guo Jian 
Published: October 2024

Abstract
When hypersonic vehicles fly at low altitudes during the end of the trajectory, they often face extremely high dynamic pressure and greater resistance. Studying the drag reduction features of the hypersonic vehicle at low altitudes is highly important. The Reynolds-averaged N-S equations are solved using the finite-volume method with the SST k-ω turbulence model. Numerical simulations are conducted on three-dimensional hypersonic flow fields involving spike and combined spike and jet configurations at low altitudes with hypersonic speeds to investigate drag reduction effects and analyze flow field characteristics. The data indicates that the presence of a spike can effectively reduce drag during low-altitude hypersonic flight. Enhancing the spike length, its drag reduction efficiency first increases and then slightly decreases. Enhancing the Mach number, the length of the spike that achieves the best drag reduction efficiency becomes longer. A spike and jet combination can enhance drag reduction efficiency when flying at an angle of attack. Enhancing the spike length or the pressure ratio in this configuration can enhance its effectiveness in reducing drag. The findings of this study provide practical guidance for developing drag-reduction strategies for hypersonic aircraft flying at low altitudes.
Multi-model strategies estimation and active intercept control of spacecraft via a zonotopic estimation approach
Authors: Che Haochi 
Published: October 2024

Abstract
This paper further explores the challenge of spacecraft interception games under incomplete information. The pursued spacecraft can change multiple evasive strategies, posing a pursuit problem for the interceptor that involves adapting to these changing strategies. A combination of interacting multiple model approach and zonotopic H
∞ observer is proposed to estimate the target’s unknown information. The interception strategies are then updated based on the estimated information. A simulation is given for comparison and to show their effectiveness.
Research on dangerous flight weather prediction based on machine learning
Authors: Liu Haoxing , Xie Renjie , Qin Haoshen , Li Yizhou 
Published: October 2024

Abstract
With the continuous expansion of the scale of air transport, the demand for aviation meteorological support also continues to grow. The impact of hazardous weather on flight safety is critical. How to effectively use meteorological data to improve the early warning capability of flight dangerous weather and ensure the safe flight of aircraft is the primary task of aviation meteorological services. In this work, support vector machine (SVM) models are used to predict hazardous flight weather, especially for meteorological conditions with high uncertainty such as storms and turbulence. SVM is a supervised learning method that distinguishes between different classes of data by finding optimal decision boundaries in a high-dimensional space. To meet the needs of this study, we chose the radial basis function (RBF) as the kernel function, which helps to deal with nonlinear problems and enables the model to better capture complex meteorological data structures. During the model training phase, we used historical meteorological observations from multiple weather stations, including temperature, humidity, wind speed, wind direction, and other meteorological indicators closely related to flight safety. From this data, the SVM model learns how to distinguish between normal and dangerous flight weather conditions.
Separation of measurement uncertainty into quantum and classical parts based on Kirkwood–Dirac quasiprobability and generalized entropy
Authors: Budiyono Agung 
Published: October 2024

Abstract
Measurement in quantum mechanics is notoriously unpredictable. The uncertainty in quantum measurement can arise from the noncommutativity between the state and the measurement basis which is intrinsically quantum, but it may also be of classical origin due to the agent’s ignorance. It is of fundamental as well as practical importance to cleanly separate the two contributions which can be directly accessed using laboratory operations. Here, we propose two ways of decomposition of the total measurement uncertainty additively into quantum and classical parts. In the two decompositions, the total uncertainty of a measurement described by a positive-operator-valued measure (POVM) over a quantum state is quantified respectively by two generalized nonadditive entropies of the measurement outcomes; the quantum parts are identified, respectively, by the nonreality and the nonclassicality—which captures simultaneously both the nonreality and negativity—of the associated generalized Kirkwood–Dirac quasiprobability relative to the POVM of interest and a projection-valued measure and maximized over all possible choices of the latter; and, the remaining uncertainties are identified as the classical parts. Both decompositions are shown to satisfy a few plausible requirements. The minimum of the total measurement uncertainties in the two decompositions over all POVM measurements are given by the impurity of the quantum state quantified by certain generalized quantum entropies, and are entirely classical. We argue that nonvanishing genuine quantum uncertainty in the two decompositions are sufficient and necessary to prove quantum contextuality via weak measurement with postselection. Finally, we suggest that the genuine quantum uncertainty is a manifestation of a specific measurement disturbance.
Dynamic facade potential for indoor lighting uniformity
Authors: Purnama M S S , Rahayu R L 
Published: October 2024

Abstract
The facade is an important part of a building. Its existence affects the comfort of the users. the situation outside the building is often unfavorable for the users, so the facade must be reliable as a protective element. the tropical climate receives an abundance of sunlight throughout the year. its rays can be used for natural lighting. But the rays also carry heat, which makes it uncomfortable. the entry of sunlight can be controlled. one possibility is to make the facade elements move following the sun’s movement. The aim of this research is to compare the performance of static and dynamic facades in terms of the uniformity of light entering the room. The value of lighting uniformity in condition 1 has a relatively small. This is due to the high intensity of light entering the room without obstruction resulting in high contrast Condition 2 uses a static facade. The value obtained is higher in comparison with condition 1. This is due to the presence of a shade that makes the light contrast not occur too large. Condition 3 uses a shade that rotates with the sun movement every hour. The comparison value tends to decrease but, when viewed, the value of the decrease is not as fast as condition 2. Judging from the three facade conditions, condition 3, namely the dynamic facade, has the smallest decrease in lighting uniformity. This demonstrated that the longest lighting uniformity occurs in condition 3
Enhancing Outdoor Thermal Comfort with Shade-giving Trees in Humid Tropical Public Spaces: A Case Study of Alun-alun Bandung
Authors: Priandani Imas Nurrahmah , Bachtiar Amira Nuha , Arbadiennaya Tsalsa , Noviana Nur Zastri , Hasanah Arifatul , Rania Putri , Ningtyas Amelia Dewi Safitra , Koerniawan Mochamad Donny 
Published: October 2024

Abstract
Public spaces in urban areas function as places for visitors to socialize. These spaces are vital to the success of urban public activities. Adjustments to the microclimate in outdoor spaces have a significant impact on the thermal comfort of visitors. This research aims to assess visitors’ level of thermal comfort experienced in public areas, specifically in Alun-alun Kota Bandung and its surroundings. The site is divided into four distinct locations: (1) the central area; (2) the tree-shaded area; (3) the building-shaded area; and (4) the area with small vegetation. This study uses tools and simulation to analyze the relationship between outdoor activities and thermal comfort in its existing public space using quantitative methods. The study’s findings show that, while respondent responses vary across typologies, an analysis of the ENVI-met simulation reveals that they are nearly identical, indicating that it is generally warm. Furthermore, the slightly cool (-1 > PMV > -0.5) and neutral (-0.5 > PMV > 0.5) categories in typologies 2 and 4 produce distinct results. More shade-giving trees and the use of environmentally friendly materials that don’t reflect sunlight are two suggestions for enhancing the microclimate conditions for pedestrians’ thermal comfort in Alun-alun Kota Bandung.
Comparing the Effectiveness of Dynamic Facades for Natural Daylight and Energy Usage in Buildings
Authors: Budhiman N H N , Koerniawan M D 
Published: October 2024

Abstract
In this research, we explore the integration of dynamic facades to enhance both aesthetics and energy efficiency in buildings. The study introduces two dynamic facade designs, one employing a triangular shape and the other inspired by origami folds, aiming to compare their effectiveness in optimising natural daylight and overall energy usage. The triangular facade features movable wings that dynamically regulate natural light, balancing visual appeal and practical functionality. Similarly, the origami-inspired design adapts to external conditions, creating a symbiotic relationship between form and function. The research employs Python and Rhino 7 with Honeybee and Pollination plug-ins for a comparative analysis. The evaluation includes Spatial Daylight Autonomy (sDA300,50) exceeding 55%, Annual Sunlight Exposure (ASE1000,250) no more than 10%-20%, and optimal facade opening angles based on daylight factor (df) values. The dynamic facades are examined for their impact on energy efficiency, encompassing factors like natural daylight, and operational energy. Through this analysis, the study aims to determine which dynamic facade design, triangular or origami-inspired, proves superior in optimising natural daylighting and overall energy usage. This research contributes valuable insights into the balance of innovative architectural designs and sustainable energy practices, potentially influencing future building designs.
The density effect on disposable mask waste as an acoustic absorber material
Authors: Febriyanti Dinda , Arifa Sakha Lunalaylia , Aryani Silfia Mona , Priliana Silmi Cahya Pradini 
Published: October 2024

Abstract
Mask ability in absorbing sound has been proven as it increases in line with thickness adding. Another characteristic that can optimize the absorption is density. This article aims to study the effect of mask density on the sound-absorption capability. This research was conducted by making absorber material models made of masks from two different brands. In the model making, this research uses two types of masks, the folded peach-colored folded face mask black duckbill type which are arranged up to 2.5 cm in thickness. In that thickness, the folded peach mask has 254 kg/m3 density and the black mask has 305 kg/m3 density. The analysis is carried out using the tube method. The research results show that at a frequency of 400 Hz, the folded peach mask has the highest absorption coefficient of 0.70, whereas the black mask has an absorption coefficient of 0.48. There is a significantly reduced absorption coefficient at the 600 Hz frequency that makes the mask not meet the standard. It can be concluded that the mask material can be used as an acoustic material as it meets the acoustic standard on absorption coefficient of at least 0.3. These findings support previous research on the potency of mask waste as an acoustic material. Therefore, the absorber material from used mask could be a solution to reduce non-degradable waste.
The Design Strategy for Youth Center in Medan Using Combination of Green Building and Contemporary Tropical Architectural Concept
Authors: Devira S , Fitri I 
Published: October 2024

Abstract
Medan currently lacks a Youth Centre, which forces young people to use inappropriate facilities. Therefore, the government should construct a facility to address the issue. The government prioritizes building facilities that are inexpensive to operate and maintain. The study investigates a youth centre concept in Medan by combining the green building concept and contemporary tropical architecture achieved through literature studies, interviews, and the distribution of a questionnaire to local experts and young people. The paper highlights the advantages of the green building concept and the design strategy that contributes to reducing negative impacts on the natural environment by using less energy, renewable energy sources, and environmentally friendly materials. Based on the results of interviews and questionnaires, the design should provide opportunities for young people to engage in both academic and non-academic activities that cater to their talents and interests. The research found eco-friendly technologies such as a hybrid cooler air conditioning system, solar panels, rainwater harvesting systems, floating boxes, and lighting devices that utilize motion sensors. Furthermore, it was combined to feature contemporary tropical architecture, with an overhanging roof, a double facade facing north and west, and the longest side facing south.
Comparison of Indoor Climate between Wooden wall Construction and Concrete Wall Construction during Winter Season
Authors: Nursiam T M , Kusuma Y , Syaudina A , rong J , Nabila D R , Nastiti K S 
Published: October 2024

Abstract
This research aims to determine the importance of thermal comfort in buildings, especially residential houses, with a focus on two types of houses that have different structures as a comparison. The research also focuses on productive rooms that are frequently used every day, considering the long duration of use. Data collection methods include distributing questionnaires to residents, as well as a quantitative approach using experiments and thermal measurements of temperature and humidity in each room, including surface measurements to compare the two types of buildings. The analysis results show that there are differences in thermal comfort between the two types of houses. Houses with wooden construction show relative humidity that reaches a comfortable point (45-65%), while houses with concrete construction tend to move cold temperatures from outside to indoors more quickly. Although efforts have been made to achieve thermal comfort in every room, the main challenge remains related to the energy consumption of artificial comfort systems. The study location in Japan took into account the different outdoor temperature variations each season. The findings we got were that houses with wooden construction walls tend to be warmer due to several factors, one of which is that this building is an apartment type with openings that tend to be smaller compared to buildings with wooden construction walls which are a traditional Japanese house type with wide openings. The measurement results using PMV analysis for both buildings were measured at 2 times at the same time, namely during the day and at night. Measurements were carried out in the living room as a comparison room with the function of a room that has the same user interaction between the two buildings. Honjo Nishi Danci Apartment (concrete wall construction) has a comfort level in the quite comfortable category compared to the living room in the apartment. Kitakyushu Islamic Cultural Center (wooden wall construction). Data was taken when both buildings did not turn on the air conditioner so that the data taken could be comparable. At night, the conditions in the living room have a slightly warm sensation because the user uses air conditioning in the room because the user sleeps in this room. the conditions in the living room at the Islamic Cultural Center have a cold sensation due to the lack of activity and use of this room. So the sensation at night tends to be cold. These findings can guide building designers in developing architectural solutions that are sustainable and focused on indoor comfort in winter.
Development of Guidelines for Edutourism Facilities through Research Instrument Preparation Based on Ecological Architecture
Authors: Jannah Mawar Zahratun , Tazkia Salsabella , Mahfudz Ihsan Nurul , Nuradji Alifia Dewi , Hanifah Sarah Rasyida , Minggra Restu 
Published: October 2024

Abstract
Sustainable tourism development is an important issue in maintaining environmental sustainability and providing economic and social benefits for society. Ecological architecture and educational tourism have similar concepts, namely, complementing each other to create harmony between humans and the environment. This study investigates the integration of environmental architecture principles into sustainable tourism, mainly focusing on educational tourism (edutourism) development in Indonesia. It seeks to establish eco-friendly edutourism standards by analyzing ecological architecture, educational tourism principles, and Sustainable Development Goals (SDGs). Utilizing a literature review, questionnaires, and interviews with edutourism managers, the research assesses infrastructure and educational aspects while emphasizing alignment with sustainability, stakeholder collaboration, and environmental awareness. Findings underscore edutourism’s potential in promoting sustainability and community welfare, contributing to setting standards for managers and enhancing visitor experiences. Recommendations include improving stakeholder communication and ongoing research for refined edutourism standards, highlighting the importance of integrating ecological architecture into edutourism for environmental sustainability and responsible tourism practices.
Investigation on Thermal Performance in Japan’s Local Station and Shopping District during Cold Season: Study Case of Kurosaki Arcade
Authors: Sumanti A E , Pipatrattanathaworn S , Dewi S P , Adnan M R , He H , Gao W , Dewancker B 
Published: October 2024

Abstract
This research delves into the spatial and thermal comfort conditions within the Kurosaki Shopping District, a market with a century-long history in Kitakyushu, Fukuoka. Despite the existing uncomfortable thermal conditions during winter, users actively engage in outdoor activities such as selling and opening stores. This research aims to understand the condition that the local user had to frequently withstand in the semi outdoor and outdoor area of Kurosaki District station and market’s urban area. Identifying issues related to thermal comfort in the outdoor areas, the study focuses on measuring and analyzing crucial parameters including air velocity, humidity, temperature, and spatial conditions. The method of data gathering uses Anemometer, Thermal recorder, and Globe Thermometer are utilized in 5 selected public areas that is actively frequented by local users. The research employs a comparative analysis method, juxtaposing the collected data with findings from literature reviews on standards and general comfort temperatures. The analysis reveals that temperature fluctuations are influenced by geographical factors and activity levels. The lack of building density contributes significantly to deviations in temperature and humidity from established standards. The study highlights the importance of addressing climatic conditions to enhance comfort in open spaces, especially in historically significant markets with extended operational histories. This research is expected to help policy makers understand the conditions of the local users and gather data for further research in the future.
Analysis of Embodied Energy and Carbon Emissions of Column Structure by Using Life Cycle Assessment (LCA) Technique - Case study: School of Dentistry Brawijaya University Construction Project
Authors: Hajji Apif M , Pahlevi M Reza , Ariestadi Dian 
Published: October 2024

Abstract
All Concrete contributes to approximately 2/3 of total CO2 emissions in construction, which mostly associated with the large amount of energy consumption required for processing concrete materials. Since a high-rise building has a large volume of concrete work, it will be directly proportional to the energy consumption used. The objectives of this research is to determine the energy consumption used and carbon dioxide emissions during the life cycle of concrete material for the construction of column structure by using Life Cycle Assessment (LCA). The LCA is conducted by the following steps: determining the dimensions and volume of concrete structure, calculating the energy consumption and CO2 emissions, and analysing the possible improvements to reduce the magnitude of the resulting impacts of concrete works. By using the School of Dentistry Building construction at the Brawijaya University campus in Malang as the case study, the results showed that: the total electrical energy consumption was 13.126 kWh and total fuel consumption was 12.26 litres; the total CO2 emissions produced were 44.4 kg with the highest percentage at the distribution stage (64%), while the production stage produced the lowest percentage (10%). Following the results, the study recommends that the contractors should prioritize using batching plants that are closest to the construction site, and replace diesel fuel with biodiesel for concrete material distribution.