bluuebunny/crossref_metadata_2025 huggingface dataset:
Leveraging Media for Environmental Empowerment: A Study on PT Indaco Warna Dunia's CSR Initiatives in Fostering a Smart Society
Authors: Pujihartati Sri Hilmi
Published: November 2023

This study examines the role of media as a vital tool in promoting environmental empowerment through the Corporate Social Responsibility (CSR) initiatives of PT Indaco Warna Dunia, a leading paint manufacturer in Indonesia. In the context of the conference theme “The Role of Smart Society in Sustainable and Green Economic Environment,” this paper delves into the effectiveness of media-centric CSR strategies in fostering a smart society that values sustainability and environmental stewardship. The research employs a qualitative case study approach, analyzing PT Indaco Warna Dunia's media-focused CSR programs, which include awareness campaigns, educational content, and digital platforms that encourage community engagement. These media initiatives were evaluated based on their ability to enhance environmental awareness, facilitate stakeholder collaboration, and encourage responsible behavior. Findings reveal that the effective utilization of media in CSR initiatives has significantly contributed to the empowerment of local communities, leading to better environmental management practices and more sustainable lifestyles. The study highlights the importance of multi-stakeholder partnerships, as well as the need for continuous innovation in the development of media tools, to ensure long-term impact and scalability of environmental empowerment efforts. In conclusion, this research emphasizes the potential of media as a catalyst for environmental empowerment within a smart society context.
Social Network Analysis of 17th Jogja-NETPAC Asian Film Festival (JAFF) in Disseminating Films on Twitter
Authors: Dwi Arifianto Budi , Junaedi Fajar , Dewi Utami Citra , Yuni Fadilla Qholiva
Published: November 2023

Jogja-NETPAC Asian Film Festival (JAFF) is a prestigious festival in Indonesia that is a place for filmmakers to distribute their films. Film festivals are held once a year, between October and December. As of 2022, the film festival turns 17. Smart Society utilise social media as reference for making decisons. Hashtags #JAFF17 organizers use to promote events on social media, particularly Twitter. The virtual community enlivened #JAFF17 hashtags with various motivations, such as promoting films shown by JAFF or promoting the JAFF event itself. This study describes the communication dynamics of Twitter account users in interacting and communicating motivation, conducts analysis based on the typology of uploaded content, correlates it with user-generated content, and explains the process of analyzing data using third-party software for crowdsourcing and collecting data from Twitter. This study used social network analysis to analyze participants' observations based on certain keywords or trending topics, such as the use of hashtags from movie-promotion-themed Twitter accounts known as #JAFF17 hashtags. These results can be used to classify the actors involved, including the official accounts of organizers, filmmakers, audiences, and influencers. Their motivation for using #JAFF17 hashtag is to promote their own films, recommend films that are shown, and promote festival programs.
Analyzing the Role of the @sapawarga_jabar Twitter Account in Advancing Digital-Based Public Services towards Smart City Development in West Java Province, Indonesia
Authors: Michel Diana , Jorgi Sutan Arissy
Published: November 2023

This study analyzes the impact of the @sapawarga_jabar Twitter account on digital-based public services for smart city development in West Java, Indonesia. Using a qualitative approach, the study examines the content and effectiveness of the Twitter account in delivering public services. Data analysis is conducted using the @sapawarga_jabar Twitter account and Nvivo 12 Plus software. Findings demonstrate that the account provides services related to car tax payments, employment, health information, and regional infrastructure development. Engagement rates peaked in March 2022, indicating active user participation and information dissemination. The study also identifies both positive and negative impacts, highlighting improved access to services and limitations due to internet access. Overall, the research contributes insights into the role of social media in enhancing digital public services for smart city initiatives in West Java. These findings can guide policymakers in optimizing social media platforms for effective public service delivery and smart city development.
Analyzing Joko Widodo's Pandemic Rhetoric on Instagram: Insights into Political Communication, Populism, and Crisis Management
Authors: Annisa Firly , Yulianti Frizki , Amalia Ayu , Sofian Muhammad Raqib Bin Mohd , Sabri Safiyyah Ahmad
Published: November 2023

This study examines Joko Widodo's rhetoric on Instagram during the pandemic. This study is significant for several reasons; social media has become an indispensable channel for political leaders to communicate with their constituents, particularly during crises such as the Covid-19 pandemic. By analyzing the language, tone, and themes of President Widodo's Instagram posts from January to December 2021, researchers can gain insight into his communication strategy and the extent to which it may have influenced public opinion and behavior. In addition, by analyzing President Widodo's Instagram posts, we can better understand populism's role in political communication during the pandemic. Populist rhetoric frequently makes emotional appeals and aims to create a sense of “us versus them,” which can effectively mobilize support but can also lead to polarization and division. President Jokowi consciously refrained from portraying himself as a hero or savior, contrary to what is commonly observed in the communication patterns of some leaders during crises. Instead, Jokowi emphasized the importance of unity, community cohesion, and adherence to public health regulations. By doing so, President Jokowi intended to cultivate a sense of shared responsibility and encourage individuals to participate in the fight against the pandemic.
Smart Mobility Development in Lampung Province? Analysis based on Medium Term Development Plan 2019-2024
Authors: Sukarno Mohamad
Published: November 2023

This study aims to determine the development of smart mobility in Lampung province with an analysis based on the Medium-Term Development Plan 2019-2024. The method used is qualitative with analysis using Computer Assigned Data Qualitative Software Nvivo 12plus. Data visualization using theme identification analysis and crosstab analysis. The results showed that the Lampung provincial government is concerned in building smart mobility based on the Medium-Term Development Plan 2019-2024 with the classification of Information Communication and Technology (ICT) Infrastructure, Innovative and Safe Transportation System, Local Accessibility, and Sustainable. Of the four indicators, local accessibility is the main program of Lampung Province in building local networks and inter-regional transportation because access to social mobility is still difficult as many as 252 KM of roads are still in damaged condition. Then ICT infrastructure which is due to the still very minimal network and telecommunications by positioning ICT Lampung to 30 of the total provinces in Indonesia. Furthermore, Innovative and safe sustainable transportation is less detailed in the Medium-Term Development Plan document because the main focus is physical infrastructure.
Effectiveness of Handling Cartel Cases by the Business Competition Supervisory Commission (KPPU)
Authors: Murjiyanto R. , Wibawanti Erna Sri , Syahrin Savira Alfi
Published: November 2023

One of the prohibitions in Law Number 5 of 1999 concerning the Prohibition of Monopolistic Practices and Unfair Competition is “cartel.” The impact caused by the cartel can not only lead to unfair competition between business actors. However, it can also cause consumer losses due to price increases resulting from the cartel of a product or service. This study aims to analyze the problem regarding the effectiveness of handling cartel cases by the Business Competition Supervisory Commission (KPPU) and what factors impede the handling of cartel cases by the Business Competition Supervisory Commission. This research was conducted using the Juridical method by reviewing applicable laws and regulations, and documents such as case decisions. From the results of studies and interpretations, the handling of the Cartel by the Business Competition Supervisory Commission is still not effective because several cases of business actors were finally decided not to have committed violations. The court annulled several decisions of the Business Competition Supervisory Commission. In contrast, the factors hindering the handling of cartel cases are the lack of public awareness to report the activities of several business actors that lead to cartel indications, the difficulty of obtaining evidence, and several KPPU decisions being annulled by the court at the objection level. This research is intended to produce recommendations to improve the process of handling cases of violations of monopoly practices and unfair business competition, especially cartels.
Legislative Corruption: Criticism of the Omnibus Law Policy in the Mineral and Mining Sector in Indonesia
Authors: Sulaiman King Faisal
Published: November 2023

The practice of state capture corruption (legislative corruption) commonly occurs when the process of drafting a law is very short, not transparent, lacks public participation, and violates a number of legal norms and formal and material principles. The process of drafting laws, which tends to be closed from public access, is often accompanied by the practice of abuse of power or transactions of legislative authority, leading to the poor quality of legislation products. In the mineral and coal mining sector, sectoral laws exposed to state capture corruption will open up space for corruption practices (administration corruption) by corporations or a handful of people by taking advantage of opportunities or material weaknesses or the articles in the law. This study examined the polemic of state capture corruption related to the material of Law No. 11/2020 on Job Creation, especially clusters of material related to the simplification of permits and investment requirements in the land sector and the abolition of the AMDAL obligation and opens up space for corruption practices. Also, it included the strategy of strengthening legislative policies to support the prevention of corruption in the mineral and coal mining sector. This research was normative-empirical, including: First, library research, identifying and analysing secondary data related to the polemic of legislative corruption on a number of materials on the Omnibus Law and other relevant sectoral regulations; Second, field research to obtain primary data by seeking expert opinion/legal expert through observation and in-depth interviews based on purposive sampling; Third, analysis of the results by identifying a number of polemics on corruption in the legislation on the work creation law based on the problem formulation. Finally, formulation of the right legislative policy (UU) rule model is necessary for supporting the prevention of corruption in the mineral and coal mining sector in Indonesia.
Reconstruction of Legal Protection of Justice Collaborators in Narcotic Criminal Cases
Authors: Widowaty Yeni , Purwanto Heri , Savitri Niken , Setiawan Adi
Published: November 2023

Justice Collaborator aims to facilitate evidence and prosecution as well as fully reveal a crime, especially those related to organized crime. However, not everyone who commits a crime as a perpetrator wants to become a justice collaborator for various reasons, including a lack of legal protection. The formulation of the problem is 1. What is the legal protection for justice collaborators in narcotics crimes so far? 2. What is the ideal concept of legal protection for justice collaborators in the criminal justice process, especially narcotics, in the future? This research uses a type of normative research with statutory, comparative and conceptual approaches. The research results show that in Indonesia, only a few perpetrators of narcotics crimes are willing to become justice collaborators, one of the reasons is the lack of legal protection. The ideal concept of legal protection for justice collaborators in the criminal justice process, especially narcotics, in the future is carried out by reconstructing regulations regarding justice collaborators. Reconstruction can be carried out using two alternatives, namely: reconstructing the Witness and Victim Protection Law, or creating separate regulations regarding justice collaborators in the form of a law.
The Use of Ome-TV Application as a technological medium to Practice English Speaking Skills
Authors: Suryanto Suryanto , Fitrawan Muhammad Yanuar
Published: November 2023

In this modern moment, a plethora of applications are available to students seeking to enhance their English-speaking proficiency. One such platform is Ome-TV, which facilitates students' engagement with individuals from various regions around the English-speaking world. The objectives of this study were to investigate the benefits of utilizing the Ome-TV program as a tool for students to enhance their English-speaking abilities. Additionally, the study attempted to uncover any limitations associated with the use of the Ome-TV application for students' English-speaking practice. The present study employed a qualitative approach utilizing a descriptive qualitative design, with a sample size of six English Language Education Department (ELED) students who served as participants. The researchers employed interviews as a method for data collection. The findings revealed that the benefits of utilizing the Ome-TV application for English Language Education Department (ELED) students' English oral proficiency include becoming effective media for practicing English speaking skills, providing a supportive and entertaining environment for language exposure, meeting mutually respectful fellows to speak English with, providing interactive pronunciation drills in real-time, enhancing lexical proficiency, and receiving a substantial amount of input on grammatical knowledge. Meanwhile, the limitations of utilizing the Ome-TV application for English Language Education Department (ELED) students' English oral proficiency consist of inappropriate use of English as a formal language, substantial use of unfavorable language, and utilizing diverse ethnic accents.
First Stage Evaluation of ISSuFiRs: Partners’ Financial Report Monitoring System by Islamic Financial Cooperatives (BMT) in Indonesia
Authors: Martiana Andri , Yunita Ani , Jauhari Sobar M. , Kassim Salina , Wong Wing-Keung
Published: November 2023

Most MSMEs, especially micro-enterprises, do not have good business accounting records, making it difficult for owners/managers to measure the profitability of their companies. Internal control management has a significant influence in reducing fraud in Micro Enterprises. The more principles-based accounting rules, the shorter the delay in annual reporting disclosures. It is important to have a good financial reporting system that can be utilized by Micro Enterprises and its cooperation partners who provide and distribute funds. ISSuFiRs is a web-based application that enables Islamic Financial Cooperatives to track the business progress of their financing partners. With this application, micro businesses can disclose their business activities in these financial records in accordance with the SAK-ETAP national accounting standards. Reporting on this system includes balance sheet, profit and loss, cash flow, sources, use of ZIS funds, and comments on financial reports. This study presents a prototyping framework that enables user value perception, evaluation, and continuous improvement of ISSuFiR design quality through co-creation methods. It is hoped that a simple and effective financial reporting system, ISSuFiRs, will be useful for Micro Enterprises and Islamic Financial Cooperatives to monitor business developments. This study proposes a prototyping framework that enables the user's perception of value. The framework is expected to be implemented in industrial product service systems, evaluated and then concluded. This research is ongoing, with a new prototype being rebuilt based on the evaluation results.
Application of Nanotechnology in Waste Water Treatment
Authors: Liang Yingshan
Published: November 2023

In the past few years, there has been a growing concern about the pollution caused by fossil fuels, leading to a significant interest in photovoltaic power generation due to its clean and environmentally friendly features. However, suppressing leakage currents is a major problem for Non-isolated PV inverters. This paper focuses on the leakage current suppression methods, summarises three main leakage current suppression paths and systematically analyses and classifies the DC-bypass topology, the H5 topology and the Neutral Point Clamped (NPC) three-level topology. In order to address the issue mentioned above, several approaches can be taken. Firstly, a suitable sinusoidal pulse width modulation strategy is implemented. Additionally, alterations are made to the common mode impedance Z. Furthermore, efforts are made to ensure a proper match of circuit parameters. The analyses in this paper are all carried out based on bridge-type inverters to provide a reference for the study of leakage current suppression in Non-isolated Inverter. Future studies will be more efficient when similar issues arise.
Exploring the Optimizations for Main Harmonic Filtering for Power Systems
Authors: Zhao Yushuo
Published: November 2023

As the global demand for sustainable and environmentally friendly energy supply continues to increase, photovoltaic technology, as an important form of new energy, has received extensive attention. Photovoltaic grid-connected system is currently the most widely used form of photovoltaic power generation system. It converts direct current into alternating current and injects it into the grid to meet the power demand of users. However, the power grid imposes a series of requirements on grid-connected photovoltaic systems, one of which is the handling of harmonic problems. This article will focus on harmonic generation and how to perform THD (Total Harmonic Distortion) mitigation. As the key equipment of photovoltaic grid-connected system, inverter plays an important role in harmonic filtering. With a brief introduction to inverter-related THD. In this paper, by exploring how to optimize harmonic filtering to improve the performance and reliability of grid-connected photovoltaic systems, it is found that the method of suppressing THD by changing the PMW modulation is simple in calculation, easy to implement, and has high output waveform quality. And the method of suppressing THD by changing the equipment can reduce the harmonic quality.
Comprehensive Analysis of Short circuit Protections for Silicon-Carbide MOSFET
Authors: Zhao Jialin
Published: November 2023

Silicon carbide (SIC) Metal-Oside-Semi-conductor Field-Effect Transistor (MOSFET) have excellent performance compared to traditional silicon components. The short circuit protection of SIC MOSFET plays an important role in ensuring the reliability and performance of SIC MOSFET. Due to the high internal heat flux and short short-circuit endurance time of SIC components, the short-circuit stability of SIC components is lower than that of silicon components. The paper briefly introduces two main types of SIC short circuit: hard switch short circuit and load short circuit and their characteristics, discusses the main types of contact and non-contact short circuit protection methods such as desaturation detection, parasitic inductance detection, gate voltage detection, shunt detection, instantaneous power consumption detection and Rogowski coil detection and compares their advantages and disadvantages. The desaturation detection method is the most widely used short-circuit protection method. Although the cost is low and the structure is simple, The desaturation detection has the inherent disadvantage of detecting the blind spot. The other detection methods overcome the defect of detection blind area, and the detection speed and accuracy are obvious advantages, but they also have their own limitations to limit their popularization.
Comparative Study of Leakage Current Suppression Schemes for Five-Level Photovoltaic Inverters
Authors: Gu Miaomiao
Published: November 2023

Solar photovoltaic power generation is crucial for combating climate change and promoting sustainable development. As the demand for renewable energy continues to rise, photovoltaic power generation offers a viable solution. This paper focuses on suppressing leakage currents in five-level photovoltaic inverters. By comparing and analyzing two types of inverters – the single-phase T-type five-level transformerless inverter and the single-phase asymmetric five-level transformerless inverter – using simulation and experimental data, the study reveals the effective suppression of leakage currents in both designs. The T-type inverter's unique configuration and advanced control algorithms significantly reduce leakage currents, while the asymmetric inverter's optimized design and operational parameters show notable proficiency in suppressing leakage currents. This research contributes to improving the performance and reliability of multi-level transformerless photovoltaic inverters, thereby supporting the widespread adoption of solar photovoltaic power generation as a sustainable energy solution.
Enhancing Interoperability and Harmonisation of Nuclear Medicine Image Data and Associated Clinical Data
Authors: Fuchs Timo , Kaiser Lena , Müller Dominik , Papp Laszlo , Fischer Regina , Tran-Gia Johannes
Published: November 2023

Nuclear imaging techniques such as positron emission tomography (PET) and single photon emission computed tomography (SPECT) in combination with computed tomography (CT) are established imaging modalities in clinical practice, particularly for oncological problems. Due to a multitude of manufacturers, different measurement protocols, local demographic or clinical workflow variations as well as various available reconstruction and analysis software, very heterogeneous datasets are generated. This review article examines the current state of interoperability and harmonisation of image data and related clinical data in the field of nuclear medicine. Various approaches and standards to improve data compatibility and integration are discussed. These include, for example, structured clinical history, standardisation of image acquisition and reconstruction as well as standardised preparation of image data for evaluation. Approaches to improve data acquisition, storage and analysis will be presented. Furthermore, approaches are presented to prepare the datasets in such a way that they become usable for projects applying artificial intelligence (AI) (machine learning, deep learning, etc.). This review article concludes with an outlook on future developments and trends related to AI in nuclear medicine, including a brief research of commercial solutions.
Trochlear Ridge Prostheses for Reshaping Femoral Trochlear Ridges in Dogs with Patellar Luxation
Authors: Nicetto Tommaso , Longo Federico
Published: November 2023

Objectives To describe the implant characteristics and surgical application of a custom-made trochlear ridge prosthesis (TRP) and to report clinical outcomes in dogs affected by patellar luxation treated with TRP.

Study design Dogs affected by patellar luxation underwent computed tomography. A specific canine bone anatomical replica, a cutting guide, and a TRP were designed and provided for surgery. Surgical records, clinical and radiographic reassessments, complications, pre- and postoperative lameness, type and degree of patellar luxation, and TRP and patellar position after surgery were reviewed. Clinical outcomes were defined as full, acceptable, or unacceptable function.

Results The TRP was implanted in 60 femoral trochleae: 48 unilateral and 12 bilateral. Successful correction of patellar luxation was achieved in 59/60 cases. TRP was applied with other surgical techniques in 36/60 of the cases and as the only surgical procedure in 24/60 cases. Overall, three complications were observed: two minor and one major (patellar luxation recurrence). Neither implant loosening nor infection was observed. The mean radiographic follow-up was 3.8 months. At the time of the final follow-up, 57/60 cases were scored as fully functional.

Conclusion The TRP application either alone or in combination with other surgical techniques allowed for correction of patellar luxation and improvement in preoperative lameness with nominal complications. TRP could represent a potentially reliable alternative to trochleoplasty.
A Scoping Review of the Oral Microbiome in Preterm Infants
Authors: Koerner Rebecca , Bendixen Marion M. , Monk Angela , Lamberti Monica F.T. , Lorca Graciela L. , Neu Josef , Parker Leslie A.
Published: November 2023

The purpose of this scoping review was to examine the oral microbiome composition in preterm infants, sampling and collection methods, as well as exposures associated with oral microbiome composition and health implications. We conducted a scoping review of the literature using the Arskey and O'Malley framework. We identified a total of 13 articles which met our inclusion criteria and purpose of this scoping review. Articles included in this review compared the oral microbiome in preterm infants to term infants, examined alterations to the oral microbiome over time, compared the oral microbiome to different body site microbiomes, and explored associations with clinically relevant covariates and outcomes. Exposures associated with the diversity and composition of the oral microbiome in preterm infants included delivery mode, oral feeding, oropharyngeal care, skin-to-skin care, and antibiotics. Day of life and birth weight were also associated with oral microbiome composition. The oral microbiome may be associated with the composition of the tracheal and gut microbiomes, likely due to their proximity. Alpha and beta diversity findings varied across studies as well as the relative abundance of taxa. This is likely due to the different sampling techniques and timing of collection, as well as the wide range of infant clinical characteristics. Multiple factors may influence the composition of the oral microbiome in preterm infants. However, given the heterogeneity of sampling techniques and results within this review, the evidence is not conclusive on the development as well as short- and long-term implications of the oral microbiome in preterm infants and needs to be explored in future research studies.

Key Points
Testing Race Differences in Risk of Gestational Diabetes Mellitus Associated with Household Food Insecurity (Using NHANES 2007–2018)
Authors: Gonzalez-Canas Carolina , Ding Qinglan , Simpson Vicki L. , Hass Zachary
Published: November 2023

Objective This study aimed to estimate the association of household food insecurity with gestational diabetes mellitus (GDM) risk by race and ethnic group.

Study Design The study was a secondary analysis from the National Health and Nutrition Examination Survey from 2007 to 2018. A survey-weighted logistic regression model was constructed with self-reported GDM as the response. The primary independent variable was a four-level food security indicator, defined as the inability to obtain food in a socially acceptable way due to the lack of financial resources and controlled for several established risk factors. Analyses were stratified by race (White and Black) and ethnicity (Hispanic) to provide insight into how gestational diabetes risk differs by subpopulation.

Results Results indicated that family history of diabetes is a risk factor across all races (adjusted odds ratio [aOR]: 4.22–16.26), while household food insecurity is a significant risk factor for only Hispanic women living with a partner (aOR: 8.50 for very low food security).

Conclusion In the United States, Hispanic women's GDM risk may be uniquely impacted by food insecurity.

Key Points
Measurement of risk spillover effect based on EV-Copula method
Authors: Zhao Yuexu , Xu Weiqi
Published: November 2023

Based on the extreme value theory, copula function, and conditional value at risk (Abbreviated as CoVaR) model, an extreme value copula CoVaR (EV-Copula CoVaR) model is established. In application, the risk spillover effect of the carbon trading market on the stock market of China is investigated. Firstly, using the index synthesis method, the carbon trading price index is synthesized through the price data of the test area of carbon emission, then the risk spillover effect of the carbon market is measured by the EV-Copula CoVaR, and the dynamic risk spillover ΔCoVaR of the carbon market to each stock market is investigated. Finally, the downside ΔCoVaR under different significance levels is measured, and the relationship between the self-risk and spillover risk of the carbon market is explored, the largest risk spillover effect to the stock market is the electricity market. The smaller the significance level, the greater the carbon market self-risk, and the greater the risk spillover of the carbon market to the stock market, which shows that there is a positive correlation between them.
What makes deceptive online reviews? A linguistic analysis perspective
Authors: Zhang Wen , Wang Qiang , Li Jian , Ma Zhenzhong , Bhandari Gokul , Peng Rui
Published: November 2023

With the rapid development of e-commerce, online reviews have become an important information source for consumers and e-commerce businesses. While the negative impact of deceptive online reviews has been well recognized, more research has to be done to help understand the linguistic manifestations of deceptive online reviews in order to help identify deceptive reviews and help increase the value and sustainability of e-commerce businesses. This study explores the linguistic manifestations of deceptive online reviews based on the reality monitoring theory, and then uses the data from Amazon.com online product reviews to examine perceptual cues, affective cues, detail cues, relevance cues, and cognitive cues of various deceptive online reviews. The results show that reviews for emotional catharsis are more extreme with affective cues, while perfunctory reviews often lack details with fewer prepositions and adjectives. In addition, deceptive reviews often lack relevance cues when these reviews are made to obtain the rewards provided by the vendors while paid posters tend to use more cognitive cues in deceptive reviews. Moreover, deceptive online reviews under all motives often lack perceptual cues. These findings provide a deeper understanding of the linguistic manifestations of deceptive online reviews and provide significant managerial implications for e-commerce businesses to employ high-quality online reviews for sustainable growth.
Democratizing the discourse on criminal justice in social media: the activity for justice for Roman Zadorov as a case study
Authors: Lev-On Azi
Published: November 2023

The outcomes of police investigations and legal proceedings frequently remain shielded from public scrutiny, leaving ordinary individuals devoid of access to these results and devoid of platforms for discourse. As a result, the general public’s ability to access legal materials and partake in informed discussions about them remains constricted, often reliant on processed information disseminated through mainstream media channels. However, what unfolds when materials become accessible and discussion platforms attain viability? This article studies the conditions that lead to more meaningful and extensive participation by non-state actors in criminal investigations. It also examines the attributes and consequences of the “democratization of knowledge” concerning legal cases, exemplified by the expansive public discourse surrounding the Zadorov trial on Israeli social media platforms. The paper highlights three conditions of such democratization processes: (1) the digitization of investigative materials, (2) the transparency of investigative materials to the public, and (3) the existence of discursive arenas in which people can discuss the case. I proceed to outline several ramifications stemming from the previously discussed traits of these democratization processes: (1) The preservation of materials related to individuals implicated in specific troublesome situations; (2) The utilization of “raw materials” to articulate stances and viewpoints; (3) The employment of materials to construct narratives that diverge significantly from those embraced by the establishment; and (4) The recurrent references to private individuals or public officials who might be deemed unprofessional or even corrupt.
Insight into alkali cation effect on CO2 electroreduction catalyzed by monodispersed Cu-N-C under applied potential
Authors: Zhao Gang , Zhang Guozhen
Published: November 2023

Atomically dispersed copper and nitrogen-doped carbon (Cu-N-C) materials are promising electrodriven CO2 reduction (CO2RR) catalysts. A comprehensive mechanistic understanding of Cu-N-C towards systematic improvement, however, is hampered by the complexity of electrode-electrolyte interface around Cu. Here, we adopted an electric double layer model to investigate the impact of alkali metal cations on the two-electron CO2RR catalyzed by Cu-N4-C under applied potential. The grand canonical density functional theory calculations show that, at U=−1.2 V vs. SHE, hydrated Na+ ions near the surface facilitate formation of bent CO2− bonding with Cu; with an increasingly negative potential, the electrosorption of CO2 (Cu+CO2+e−→Cu-CO2−) instead of the formation of COOH becomes the presumable rate determining step for Na+-aided CO formation. Further, a possible Cu(I) may be vital for the adsorption of anionic COOH. Our study demonstrates the crucial role of alkali metal ion in the early stage of CO2RR on Cu-N4-C and the importance of explicit consideration of the applied potential in simulation for a better understanding of the reaction mechanism.
Surface chemistry and photochemistry of cyclohexane on rutile TiO2(110)
Authors: Wang Wenyuan , Wu Longxia , Fu Cong , Xu Hong , Wu Zongfang , Huang Weixin
Published: November 2023

Cyclohexane is a high-valued chemical rece1vmg significant interest in liquid hydrogen storage technology. TiO2-based catalysts show high performance in the photocatalytic dehydrogenation of cyclohexane under mild conditions, but the detailed reaction mechanism is not well understood. With the surface science approaches, we have studied the adsorption and surface chemistry of cyclohexane on rutile TiO2(110). The thermal desorption spectroscopy and X-ray photoelectron spectroscopy results both demonstrate the molecular adsorption of cyclohexane on rutile TiO2(110). Upon the UV Hg light irradiation, photodesorption of cyclohexane occurs from both the chemisorbed monolayer and the multilayer. No decomposition nor dehydrogenation of cyclohexane occurs on rutile TiO2(110). These results deepen the fundamental understanding of the surface chemistry of cyclohexane on the TiO2 surface.
Fine-structure branching ratios N(2D5/2)/N(2D3/2) above threshold N(2D5/2.3/2)+N(2D5/2.3/2) for 14N2 and 15N2
Authors: Lu Liya , Jiang Pan , Cheng Min , Gao Hong
Published: November 2023

Accurate measurements of the product spin-orbit finne-structure branching ratios are important for understanding the detailed photodissociation dynamics of small molecules. In this study, the atomic spin-orbit fine-structure branching rar tio N(2D5/2)/N(2D3/2) to the dissociation channel N(2D5/2,3/2)+N(2D5/2,3/2) is measured for the c4′1Σu+(υ′=6) and b′1Σu+(υ′=21) states of 14N2, and the b′1Σu+(υ′=20) and b′1Σu+(υ′=21) states of 15N2 by using the vacuum ultraviolet (VUV)pump VUV-probe time-sliced velocity-mapped ion imaging setup. The measurements show that the fine-structure branching ratio N(2D5/2)/N(2D3/2) is independent of the rotational level of the parent molecule (14N2 or 15N2) in each vibronic state, while it does show dependence on the vibronic characteristics. It is ~1.35 for the c4′1Σu+(υ′=6) state of 14N2 and b′1Σu+(υ′=20) state of 15N2, which are both close to the dissociation threshold N(2D5/2,3/2)+N(2D5/2,3/2); while it becomes ~1.00 for the b′1Σu+(υ′=21) state of both 14N2 and 15N2, which are relatively far above the dissociation threshold. A possible change from a statistical process near the threshold to a diabatic process far above the threshold might have occurred to be responsible for the observed vibronic dependence of the branching ratio. Detailed informations on the potential energy curves and their mutual couplings near the dissociation threshold are highly desired for understanding the present experimental measurement.
Global efficiency and network structure of urban traffic flows: A percolation-based empirical analysis
Authors: Kwon Yungi , Jung Jung-Hoon , Eom Young-Ho
Published: November 2023

Making the connection between the function and structure of networked systems is one of the fundamental issues in complex systems and network science. Urban traffic flows are related to various problems in cities and can be represented as a network of local traffic flows. To identify an empirical relation between the function and network structure of urban traffic flows, we construct a time-varying traffic flow network of a megacity, Seoul, and analyze its global efficiency with a percolation-based approach. Comparing the real-world traffic flow network with its corresponding null-model network having a randomized structure, we show that the real-world network is less efficient than its null-model network during rush hour, yet more efficient during non-rush hour. We observe that in the real-world network, links with the highest betweenness tend to have lower quality during rush hour compared to links with lower betweenness, but higher quality during non-rush hour. Since the top betweenness links tend to be the bridges that connect the network together, their congestion has a stronger impact on the network’s global efficiency. Our results suggest that the spatial structure of traffic flow networks is important to understand their function.
Experimental investigation on the nodal-shaped oscillation in vortex-induced vibration of a rectangular cylinder
Authors: Lyu Zhen , Lim H. D. , Zhang Weiwei
Published: November 2023

This paper presents a peculiar nodal-shaped oscillation in vortex-induced vibration (VIV). This response is distinct from the commonly observed limit cycle oscillation in VIV and other aeroelastic problems. To gain insight into the dynamics in nodal-shaped oscillation, we conduct wind tunnel tests to investigate the VIV response of a freely oscillating rectangular cylinder with various transverse structural natural frequencies fs and wind speeds. The evolution of the flow field during nodal-shaped oscillation was examined using time-frequency analysis and modal analysis. During the divergent stage of the nodal-shaped oscillation, two modes, namely, the wake mode with a frequency of f = 1.28fs and the structure mode with a frequency of f = fs, were found to dominate the response of the flow. The two modes in VIV are coupled and compete with each other, diverging the oscillation of the structure. As the oscillation diverges and the amplitude increases to the maximum, the wake mode vanishes, which disengages the coupling of the fluid and structure modes. This stops the VIV and the oscillation decays until the wake mode reappears at f = 1.28fs. The above processes cycle over and over again, resulting in nodal-shaped (divergent-decay-divergent-decay) oscillation cycles. This finding explains the underlying dynamical mechanism of nodal-shaped oscillation and demonstrates the strong relationship between the wake mode and VIV.
Proton acceleration with multi-peak energy spectra tailored by vortex laser
Authors: He J. Z. , Wang W. P. , Dong H. , Jiang C. , Shi Z. Y. , Leng Y. X. , Li R. X. , Xu Z. Z.
Published: November 2023

A novel flying cascaded acceleration mechanism is proposed to generate energetic proton beams with multi-peak energy spectra using a circularly polarized (CP) Laguerre–Gaussian (LG) laser pulse in three-dimensional particle-in-cell simulations. Simulations show that the protons are initially accelerated and compressed into the beam center via the radiation pressure of the CP LG (σz = −1) laser pulse. Then, they are tailored by flying dipolar electric fields in this LG laser, resulting in a multi-peak energy spectrum. Each shaped proton peak exhibits a narrow energy spread of ∼5% and high flux of ∼2 × 108 protons/MeV at giga-electron volts energy. Such a flying cascaded acceleration mechanism extends the energy spectra of proton beams from monoenergetic to multi-peak structure, thereby potentially enhancing the generation efficiency of monoenergetic proton beams for various applications, such as proton-induced spallation reactions, proton radiography, and proton therapy.
Electrochemical AFM/STM with a qPlus sensor: A versatile tool to study solid-liquid interfaces
Authors: Auer Andrea , Eder Bernhard , Giessibl Franz J.
Published: November 2023

Atomic force microscopy (AFM) that can be simultaneously performed with scanning tunneling microscopy (STM) using metallic tips attached to self-sensing quartz cantilevers (qPlus sensors) has advanced the field of surface science by allowing for unprecedented spatial resolution under ultrahigh vacuum conditions. Performing simultaneous AFM and STM with atomic resolution in an electrochemical cell offers new possibilities to locally image both the vertical layering of the interfacial water and the lateral structure of the electrochemical interfaces. Here, a combined AFM/STM instrument realized with a qPlus sensor and a home-built potentiostat for electrochemical applications is presented. We demonstrate its potential by simultaneously imaging graphite with atomic resolution in acidic electrolytes. Additionally, we show its capability to precisely measure the interfacial solvent layering along the surface normal as a function of the applied potential.
An alternating continuous integration system for magnetic measurements for experimental advanced superconducting tokamak
Authors: Wei Y. Q. , Wan B. N. , Shen B. , Yang L. , Ji F. , Wang Y. , Chen M. , Liu Z. J.
Published: November 2023

Integrators are critical instruments used for magnetic measurement systems (MMSs) in tokamaks, and, currently, the Experimental Advanced Superconducting Tokamak (EAST) has over 600 deployed. However, these integrators, designed with real-time drift compensation, will not be able to support longer pulse operations in the near future due to saturation and drift. To address these issues, this paper proposes a new alternating integration system combining analog integration with drift digital rectification. This system utilizes a microcontroller unit (MCU) to control two parallel analog integrators to work alternatively, compensate their drifts based on their respective error characteristics, and assemble the two integration segments together. The designed architecture provides highly flexible capabilities in operation modes and error correction, which make the system operation and maintenance highly automated. Performance tests on the EAST experiment site show that the prototype integrator can meet the requirements of real-time plasma control for a duration of hour-level.
Designing jet deflector configuration for a semi-cryogenic rocket engine
Authors: Sandeep Sreelakshmi , Sharma Manish , Krishna Praveen
Published: November 2023

This study deals with the design of a suitable configuration of jet deflector for supersonic exhaust gases from a semi-cryogenic launch vehicle engine using computational fluid dynamics. Computational model of combustion in semi-cryogenic engine, with kerosene as fuel and liquid oxygen as oxidizer, was developed in which exhaust gases from engine were impinged on the deflector surface. Different design configurations of deflector structure, obtained by the combination of various impingement angles of 15°, 20°, 25°, 30°, and 45°, and different exit radii of 5000, 10 000, and 20 000 mm, were used in the developed computational models to analyze impingement, deflection, and associated flow properties of exhaust gases, such as acoustics, force on deflector imparted by jet, temperature, and Mach number of flow field. A new ablation model was developed based on Vieille's law to determine the amount of refractory material ablated from deflector structure for different configurations. The developed models of ablation, combustion, and flow impingement were also validated with existing literature. It was found that the configuration with 20° impingement angle and 10 000 mm exit radius had ablation, acoustics, force, and flow properties in desired limit. Furthermore, to find the optimum uplift angle for designing jet deflector, configurations with uplift angles of 0°, 5°, 15°, and 25° were studied using the computational models developed in the study. It was observed that the configuration with 20° impingement angle, 10 000 mm exit radius, and 15° uplift angle was best suited for impingement and deflection of exhaust jet from the specified semi-cryogenic engine.
An algorithm to couple smoothed particle hydrodynamics and finite element method for fluid–structure interaction problems
Authors: Li Yingchu , Shi Huabin , Zhang Bingyin
Published: November 2023

An algorithm for coupling the smoothed particle hydrodynamics (SPH) method and the finite element method (FEM) is proposed for fluid–structure interaction (FSI) problems. The SPH module solves the fluid motion, and the FEM module describes the deformation of structures. In the algorithm, a structure is considered as a solid boundary in the SPH module and dealt with using the dynamic boundary condition. Only three layers of SPH boundary particles are set to represent the structure surface, and the interaction forces between the SPH boundary and fluid particles, including the water pressure and the viscous shear stress, are quantified in a same way as the inter-fluid particle forces. Further, the computed forces on the SPH boundary particles exerted by the fluid are redistributed to the structure FEM nodes based on a well-defined projection scheme. In the FEM module, the deformation and motion of the structure under the exerted fluid forces are solved, and accordingly, the position and velocity of the SPH boundary particles are updated by interpolation from the new properties at the FEM nodes. The proposed SPH-FEM coupled model is validated in three FSI benchmarks. For the deformation of an elastic plate under hydrostatic water pressure, the relative difference between the computed and the analytical maximum vertical displacement at the plate midpoint is about 1.5%. For the deformation of an elastic gate subjected to a time-varying dam-break flow, the relative root mean squared errors in the computed vertical and horizontal displacement of the gate are, respectively, 5.5% and 2.2%. It is demonstrated that the proposed model performs well in simulating the deformation of structures under both hydrostatic water pressure and dynamic impacts of dam-break flows.