bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation of solution structures in a nonlinear electric transmission network incorporating dissipative elements through physical phenomena analysis
Authors: Cui Qinghua , Sun Yiqun , Qi Jianming 
Published: July 2024

Abstract
This paper presents an innovative approach to solving the voltage equation in a multi-coupled nonlinear transmission network with dissipative elements. By employing the

G
′

G

2

-expansion method and fractional derivatives, we explore the behavior of current and voltage, considering memory effects. Our investigation delves into the impact of fractional calculus on signal transmission, revealing insights into period, amplitude, and propagation direction. Additionally, we analyze the influence of obliqueness angles and various fractional-order derivatives on voltage waveforms Stability analysis demonstrates the significant role of dissipative elements and modulation parameters on signal stability and network resistance to interference. Furthermore, we examine the effects of free parameters on signal transmission characteristics. Our findings highlight the intricate interplay between fractional order, wave obliqueness, and physical parameters on voltage propagation, addressing gaps in previous research.
An effective gauge field theory of the nucleon interactions
Authors: Boos Eduard 
Published: July 2024

Abstract
We discuss the possibility of constructing an effective gauge field theory of the nucleon interactions based on the ideas of isotopic invariance as well as hypercharge invariance as a local gauge symmetry and spontaneous breaking of this symmetry. The constructed effective field theory predicts the structure of interactions of protons and neutrons with ρ- and σ-mesons, and with pi-mesons and photons, as well as interactions of these particles with each other. The Lagrangian of the theory consists of several parts involving dimension 4 and 5 gauge invariant operators. Feynman rules for physical degrees of freedom that follow on from the Lagrangian define the structure of diagrams for one-boson exchanges between nucleons, predicting the internucleon one-boson-exchange potential as well as nucleon scattering amplitudes. The range of applicability of the effective theory is discussed and estimates are made of the resulting coupling constants. The theory predicts the mass of the neutral ρ
0-meson to be about 1 MeV larger than the mass of the charged mesons ρ
±. The vector ω-meson, which is a sterile particle with respect to the considered gauge group SU

I
(2) × U

Y
(1), can be added to the scheme via a gauge-invariant operator of dimension 5, as shown in the appendix.
Level statistics of the one-dimensional dimerized Hubbard model
Authors: Haderlein Karin , Luitz David J , Kollath Corinna , Sheikhan Ameneh 
Published: July 2024

Abstract
The statistical properties of level spacings provide valuable insights into the dynamical properties of a many-body quantum systems. We investigate the level statistics of the Fermi–Hubbard model with dimerized hopping amplitude and find that after taking into account translation, reflection, spin and η pairing symmetries to isolate irreducible blocks of the Hamiltonian, the level spacings in the limit of large system sizes follow the distribution expected for hermitian random matrices from the Gaussian orthogonal ensemble. We show this by analyzing the distribution of the ratios of consecutive level spacings in this system, its cumulative distribution and quantify the deviations of the distributions using their mean, standard deviation and skewness.
Coherent X-ray radiation excited by a relativistic electron in a periodic layered medium
Authors: Noskov A.V. , Blazhevich S.V. 
Published: July 2024

Abstract
The work is devoted to the development of the theory of coherent X-ray radiation near the direction of Bragg scattering of a beam of relativistic electrons crossing a target with a periodic layered structure with three different amorphous layers per period. The coherent X-ray radiation is considered within the two-wave approximation of the dynamic theory of diffraction as a sum of parametric X-ray radiation and diffracted transition radiation excited in the target by a relativistic electron. Expressions describing the spectral-angular and angular densities of PXR and DTR have been obtained and studied.
Designed a photomultiplier tube X-ray framing camera based on pulse dilation technology
Authors: Fu Wenyong , Hu Chenman , Li Ling , Zhou Rongyan , Chen Ping 
Published: July 2024

Abstract
During the past decade, many diagnostic instruments have
been developed that utilize electronic pulse dilation to achieve
temporal resolution in the sub-10 ps range. The motivation behind
these development efforts was the need for advanced diagnostics in
high-density physics experiments around the world. This technology
converts the signal of interest into a free electron cloud, which is
accelerated into a vacuum drift space. The acceleration potential
varies over time and causes axial velocity dispersion in the
electron cloud. This velocity dispersion is converted into time
separation after electrons pass through drift space. Then,
traditional time resolved methods were used to detect free
electrons, and the effective temporal resolution was magnified many
times. A gated microchannel plate (MCP) X-ray framing camera based
on pulse-dilation technology has been designed and manufactured in
the paper. Here, we discuss design details and applications of these
instruments. The temporal resolution measured without using
broadening technology is approximately 78 ps. When the excitation
pulse is applied to the PC, the pulse dilation technique is used to
increase the measured temporal resolution to 9 ps. The propagation
speed of gated pulses in MCP microstrip lines was measured using
fiber bundle method, which is approximately
1.8 × 108 m/s.
Maternal and child health climate change adaptation: a qualitative document analysis of South Asian National Adaptation Plans
Authors: Bhandari Dinesh , Robinson Eddie , Dhimal Meghnath , Borda Ann , Ebi Kristie L , Lokmic-Tomkins Zerina 
Published: July 2024

Abstract
Driven by the existential threats of climate change to planetary health, the United Nations Framework Convention on Climate Change (UNFCCC) established a mandate for National Adaptation Plans (NAPs) to facilitate adaptation planning in low- and middle-income countries. However, the extent to which NAPs consider health risks, particularly those affecting maternal and child health in the adaptation planning process, remains unexplored. Employing the READ approach for document analysis, this study assesses the thoroughness with which these risks were considered during the development and implementation of NAPs in selected Asia-Pacific countries: Cambodia, Nepal, Sri Lanka, and Timor-Leste. The findings reveal health is consistently identified as a high-priority sector vulnerable to climate change. Cambodia, Nepal, and Timor-Leste prioritized maternal and child health issues. Consequently, these countries have outlined a broader gender-based approach in their NAP development and implementation processes, addressing some of the maternal and child health threats posed by climate change. The findings underscore the need for enhanced efforts to prioritize reducing maternal and child health risks associated with climate change through effective interventions in national adaptation planning. This need could be met through evidence generation based on the maternal and child health impacts of climate change in under-represented countries. Additionally, the future development and updating of NAPs should involve a more comprehensive and diverse representation of women from various cultural and geographic backgrounds to prioritize the protection of maternal and child health in the climate change policy discourse.
The frequency of autumn western North Pacific tropical cyclone linking to spring western Pacific SST anomalies
Authors: Ma Xuan , Xie Fei , Chen Xiaosong , Liu Na , Liang Rizhou 
Published: July 2024

Abstract
Autumn typhoons, despite their lower occurrence rate, impose significant, and at times, greater economic impacts on Asia than summer typhoons. Accurately predicting the interannual variations in autumn typhoon frequency remains a persistent challenge. Our finding discovers a pattern of sea surface temperature (SST) anomaly in the western Pacific, termed the horseshoe-shaped mode (HWP), and finds a strong interannual correlation between the February–March SST anomalies in the western Pacific and September–October tropical cyclones (TCs) frequency in the western North Pacific. The February–March warming HWP triggers enhanced easterlies over the equatorial Pacific as a Kelvin wave response, strengthening the east-west SST gradient and, in turn, further intensifying the September–October HWP through positive feedback. The intensified September–October HWP could boost upwelling in the northwestern and southwestern Pacific and induce dynamic subsidence in the equatorial western Pacific, mirroring a localized reversal of Hadley-like circulation. This is accompanied by higher relative humidity, cloud cover, and longwave radiation over the western North Pacific, warming local SST and fostering TC formation. An SST-based statistical linear model could reproduce September–October TCs for both training and testing periods, demonstrating the reliability and stability of this linear model. Our results indicate that HWP could be an important indicator for improving TC prediction level.
Methane gas in breath test is associated with non-alcoholic fatty liver disease
Authors: An Sanggwon , Cho Eui-young , Hwang Junho , Yang Hyunseong , Hwang Jungho , Shin Kyusik , Jung Susie , Kim Bom-Taeck , Kim Kyu-Nam , Lee Wooyoung 
Published: July 2024

Abstract
Although the associations between a patient’s body mass index (BMI) and metabolic diseases, as well as their breath test results, have been studied, the relationship between breath hydrogen/methane levels and metabolic diseases needs to be further clarified. We aimed to investigate how the composition of exhaled breath gases relates to metabolic disorders, such as diabetes mellitus, dyslipidemia, hypertension, and nonalcoholic fatty liver disease (NAFLD), and their key risk factors. An analysis was performed using the medical records, including the lactulose breath test (LBT) data of patients who visited the Ajou University Medical Center, Suwon, Republic of Korea, between January 2016 and December 2021. The patients were grouped according to four different criteria for LBT hydrogen and methane levels. Of 441 patients, 325 (72.1%) had positive results for methane only (hydrogen < 20 parts per million [ppm] and methane ⩾ 3 ppm). BMIs and NAFLD prevalence were higher in patients with only methane positivity than in patients with hydrogen and methane positivity (hydrogen ⩾ 20 ppm and methane ⩾ 3 ppm). According to a multivariate analysis, the odds ratio of only methane positivity was 2.002 (95% confidence interval [CI]: 1.244–3.221, P = 0.004) for NAFLD. Our results demonstrate that breath methane positivity is related to NAFLD and suggest that increased methane gas on the breath tests has the potential to be an easily measurable biomarker for NAFLD diagnosis.
An Infrared based Real-Time Monitoring System of Bees Activities: The Integration of STEM and Enviromental Education
Authors: Almira A , Raffiudin R , Nurhiman A , Maddu A , Rustami E , Priawandiputra W , Sumaryada T I 
Published: July 2024

Abstract
Global climate change has a devastating impact on human life, including the agricultural sector. It is urgent that the environmental education must be taught as early as possible to the younger generation. Bees that play a crucial role in pollination are vulnerable to the environmental change. Observation and detection of the bee’s activity are crucial to inform us the possible occurrence of a Colony Collapse Disorder (CCD) phenomenon, in which the population of bees drops significantly due to many external factors. A real-time monitoring system of bee’s activities based on infrared sensor and Internet of Things (IoT) platform has been designed as a STEM project for undergraduate students. This instrument can monitor the in-and-out activity of bees remotely using internet and website’s interface. In four days of observation, the average activity of bees leaving the hive per minute showed an increasing pattern from 1.00 to 2.00 PM. The result indicates a healthy population of bees and no clear sign of CCD occurred in the area. Other phenomena such as the heat-balling behavior which arises during the observation which also enrich student knowledge about animal behaviour.
Comparison of K-Means and K-Medoids Algorithms for Clustering of Potential Flood-Prone Areas in Bengkulu Province
Authors: Ishak S I , Sitanggang I S , Widodo T 
Published: July 2024

Abstract
This research investigates the likelihood of flooding in Bengkulu Province, an area prone to flood events. Key factors such as heavy rainfall, mountainous terrain, changes in land use, insufficient drainage infrastructure, and the impact of climate change contribute significantly to the occurrence of floods in this region. Utilizing Quantum GIS, this study incorporates rainfall data and river distances from district centers to analyze the potential flood susceptibility of different areas. Employing clustering techniques, specifically K-means and K-medoids, the research identifies areas at higher risk of flooding. The findings indicate that employing K-means with five clusters yields superior outcomes, while K-medoids with two clusters also provide valuable insights. By leveraging Geographic Information Systems (GIS), flood-prone areas can be effectively mapped, enhancing the comprehension and mitigation of flood risks. Recommendations stemming from this study include prioritizing common and pertinent factors related to flood disasters, enhancing website user experience through UI/UX enhancements, and improving online accessibility measures.
Time Series Clustering Analysis Using Dynamic Time Warping Technique of Daily Rainfall in Bengkulu Province
Authors: Fransiska H , Agustina D , Setyorini D , Sumartajaya I M , Kurnia A 
Published: July 2024

Abstract
Climate change is an important issue. The Meteorology, Climatology, and Geophysics Agency indicates that the state of climate change is critical. Climate change, such as high rainfall, can hurt people’s daily lives, causing floods, landslides, and other disasters. As a result, this researcher will use the time series clustering approach to analyze the mapping of rainfall in Bengkulu Province using data from 2001-2020. This work uses Dynamic Time Warping (DTW) and Euclidean to determine the similarity. The best is DTW. The results obtained show that in Bengkulu province, there are 2 clusters. The members of Cluster 1 have one rain station, and Cluster 2 has 14 rain stations. Cluster 1 is included in the low rainfall category. Cluster 2 is a cluster with a high rainfall category.
Flexural Strength of Ceiling Results from Plastic Waste Conversion
Authors: Adinugraha G A , Yuwono A S , Putra H 
Published: July 2024

Abstract
The high development of construction is a factor in accelerating municipal solid waste. The large volume of plastic waste threatens natural ecosystems and human health. Plastic recycling can reduce the negative impact. This study aims to test the performance of a plastic waste melting device, convert plastic waste into a ceiling, and test the quality of plastic ceilings. Plastic waste is converted into ceiling by melting the plastic waste and then printing it on the ceiling mold. The plastic ceiling is tested to measure the material strength and compare it with conventional ceilings. The performance test of plastic melter showed good performance because the device reached the melting temperature of the plastic, which is 160 °C within 4 hours. The process of converting plastic waste into ceilings aims to reduce plastic waste. Density and Modulus of Rupture (MOR) tests were carried out to determine the quality of the ceiling. The density of plastic ceilings has a value of 0.87 g/cm3. The MOR value for plastic ceilings has a value that is not much different from ceiling materials on the market, which is 3 N/mm2. Therefore, plastic ceilings can be an alternative to reduce the distribution of plastic waste.
Initiative Collaboration Tool of Early Warning Systems for Early Action to Mitigate Flood Disaster Impacts in Indonesia
Authors: Perdinan  , Adi R F , Rosya A , Lestari L , Harianto T , Aprilia S , Basit R A , Prihansyah R , Putra A R , Aminingrum  , Jannah N 
Published: July 2024

Abstract
Indonesia is an archipelagic country whose rainfall extremes that can lead to flood events. The Indonesian government initiated the development of the disaster prevention dashboard coordinated by the National Disaster Management Agency that can be accessed at https://dashboardpencegahan.bnpb.go.id/. The dashboard is an online media-based platform that coordinates the flood hazard early warning systems issued by various ministries and/or institutions in Indonesia. The Dashboard provides warnings on possible flood areas covering the sub-district level with a prediction period of two days nationally. Hazard information is generated based on the impact-based forecast analysis from the BMKG-Signature of the Bureau of Meteorology, Climatology, and Geophysics, named in Bahasa Indonesia Badan Meteorologi, Klimatologi, and dan Geofisika (BMKG), and threshold analysis using the river basin approach of the Ministry of Public Works and Housing, named in Bahasa Indonesia Kementerian Pekerjaan Umum dan Perumahan Rakyat (PUPR). The Dashboard offers the related parties to assist in preparedness and mobilization resources. This idea supports the translation of early warning to early action (EWEA), thereby contributing to disaster risk reduction. The goal is to prevent or minimize the casualties and economic impacts of disaster events. The initiative dashboard will also promote the optimal utilization of Early Warning Systems to raise awareness and endorse public participation in emergencies and disaster preparedness. The dashboard development provides insights and lessons on the aspects that contribute to the effectiveness of EWEA related to disaster risk reduction, namely, 1) the required period of prediction (lead time) and accuracy, 2) proper methods for dissemination, and 3) designed plans and actions.
The Production of Waste Cooking Oil Biodiesel by Non-Catalytic Methods
Authors: Yunitasari B , Susila I W , Arsana I M , Drastiawati N S 
Published: July 2024

Abstract
The escalating demand for sustainable and eco-friendly energy sources has intensified the exploration of alternative fuels, among which biodiesel stands out as a promising candidate. This research delves into the synthesis of biodiesel from waste cooking oil (WCO) through a non-catalytic transesterification process. WCO, abundant and inexpensive, serves as a viable feedstock, contributing to both environmental sustainability and economic feasibility. The non-catalytic transesterification method, chosen for its simplicity and cost-effectiveness, involves the reaction of WCO with methanol in the absence of a catalyst. The process parameters, including temperature and methanol-to-oil ratio, are systematically optimized to enhance biodiesel yield and quality. The research was carried out with varying molar ratios of 160, 170, and 180 for the comparison of methanol and used cooking oil. The method used in this research is a non-catalytic batch system method that entails a transesterification reaction, WCO is reacted with methanol to produce biodiesel. 200 mL of WCO into the BCR (Bubble Column Reactor), then set the temperature on heater one to 70 °C, heater two to 170 °C, and heater three to 150 °C. Additionally, the study evaluates the physicochemical characteristics of the produced biodiesel, encompassing parameters like kinematic viscosity, density, and cetane number, to ensure compliance with the standard to the Decree of the Director General of EBTKE No. 195.K/EK.05/DJE/2022 to determine the characteristics of biodiesel. The test results showed that the highest biodiesel yield from used cooking oil was obtained at a molar ratio of 160, 51%. Characteristic testing shows that variations in molar ratios of 160, 170, and 180 for density (at a temperature of 40 °C), kinematic viscosity (at a temperature of 40 °C), and cetane number have met the specified requirements
Optimizing UAV Routes: An Implementation and Evaluation of Ant-Colony Optimization Algorithm on Crazyflie Quadcopter for Solving the Traveling Salesman Problem
Authors: Priandana K , Khairi F , Wulandari  , Hardhienata M K D , Atman M W S 
Published: July 2024

Abstract
The Traveling Salesman Problem (TSP) involves optimizing a route to find the most efficient path. In agricultural scenarios, a practical example of TSP arises when Unmanned Aerial Vehicles (UAVs) are required to traverse multiple locations (nodes) to execute specific tasks such as monitoring or fertilization. One of the algorithms employed for solving TSP is Ant-Colony Optimization (ACO). The ACO algorithm operates by utilizing the “ants” as the virtual agents exploring the potential routes and storing the information in memory to determine the optimal route. This research aims to address the TSP problem using the ACO algorithm and subsequently apply it to the Crazyflie quadcopter. The developed ACO algorithm is designed to identify the most efficient route, guiding the UAV along the obtained path. Test results demonstrate the successful navigation of the Crazyflie quadcopter to the specified points, with mean error of 0.02 meters, 0.02 meters, and 0.01 meters on the x-, y- and z-axes respectively.
Sunda Strait Tsunami’s Impact on SDGs. A Change in The Welfare of The Tsunami Survivor’s Family
Authors: Sunarti E , Fithriyah A F , Novyanti W , Meliano I , Pratama C 
Published: July 2024

Abstract
The devastating Sunda Strait Tsunami of December 2018 has had lasting effects on the lives of affected families. The aims of this research are: (1) analyze the long-term recovery of the affected families in terms of poverty status, food security, and family welfare, and (2) analyze the variables within two distinct family groups, namely refugees and non-refugees. This study tracked changes over four intervals post-tsunami to monitor the progress of recovery. A total of 120 families, divided into refugee and non-refugee categories, participated in the study. Within 20 months post-tsunami, family economic downturn only saw a 40 percent recovery from pre-tsunami levels. Initially, there was a rapid increase in poverty status within the first three months post-tsunami, followed by a gradual decline. Despite this, families persisted in employing food coping strategies as an indicator of food security, albeit with decreasing intensity over time. Across three post-tsunami periods, subjective family welfare did not significantly differ between refugee and non-refugee groups, yet refugee families exhibited notably lower objective welfare compared to non-refugee families. This research underscores the pivotal role of family resilience in effectively integrating disaster risk reduction efforts into Sustainable Development Goals (SDGs).