bluuebunny/crossref_metadata_2025 huggingface dataset:
Pessimistic Prospects of the Scientific Worldview: A Potential Islamic Defense for the Future Leadership of Muslim Youths
Authors: Ali Muhammad Mumtaz , Md Maruf Hasan
Published: November 2024

This research paper tries to deal with contemporary concerns of the scientific worldview. In the past, pessimism from the scientific worldview was just a mere dichotomy between Western secular intellectuals and Christian authority as we have learned from the Western history. However, Salaman Rushdi and Ibn Warraq indicated something different. The scientific worldview may affect the attitudes of Muslim youths. After the fall of the Arab spring, Islamic movements may face difficulties in Muslim societies. What went wrong with the Mursi regime when he was elected following Western democracy? This research paved an alternative way to understand the difficulties of Islamic movements. Then, the article tried to provide a feasible solution for the future leadership of Muslim youths. This research also looked into the works of Imam Ghazali, Muhammad Iqbal and Sayyid Qutub for the possible solution against pessimism of the scientific worldview. This article used qualitative methodology. The research found that despite having the dominancy of the scientific worldview in the 21st century, Islam has a unique way of dealing with the pessimistic politics of the scientific worldview. Machiavelli’s notion of Lion and Fox and Nietzsche’s master and slave morality have been explored to understand the problem with contemporary Islamic movements. In addition, the article suggested that Imam Ghazali, Muhammad Iqbal and Sayyid Qutub were able to draw some defense mechanisms against the scientific worldview.
Pengaruh Digitalisasi Dan Pelatihan Entrepreneurship Terhadap Kinerja Bisnis UMKM Peserta Kampus UMKM Shopee Di Kota Jakarta
Authors: Putri Haliza Aisyah , Mulyana Asep , R Indika Deru
Published: November 2024

Kebiasaan belanja masyarakat Indonesia telah mengalami perubahan signifikan dengan meningkatnya preferensi untuk berbelanja online semenjak terjadinya wabah Covid-19. Namun, menurut Indeks Kesiapan Digital UMKM Jabodetabek, kesiapan digital UMKM masih pada tahap menengah. Untuk mengatasi hambatan ini, Shopee Indonesia mendirikan Kampus UMKM Shopee guna membantu UMKM memanfaatkan platform digital untuk mengembangkan usaha mereka. Penelitian ini bertujuan untuk mengetahui pengaruh digitalisasi dan pelatihan entrepreneurship terhadap kinerja bisnis UMKM peserta Kampus UMKM Shopee di Jakarta. Metode penelitian yang digunakan adalah kuantitatif dengan menggunakan kuesioner untuk mengumpulkan data terkait pelatihan, tingkat digitalisasi, dan kinerja bisnis UMKM. Hasil analisis menunjukkan bahwa digitalisasi dan pelatihan entrepreneurship melalui platform Shopee memiliki pengaruh positif yang signifikan terhadap kinerja bisnis UMKM. Digitalisasi melalui Shopee membantu UMKM meningkatkan visibilitas dan kepercayaan konsumen, sementara pelatihan entrepreneurship meningkatkan keterampilan dan efisiensi operasional. Kesimpulan ini menunjukkan bahwa program Kampus UMKM Shopee efektif dalam mendukung pertumbuhan dan keberlanjutan bisnis UMKM di era digital.
Akibat Hukum Penyalahgunaan Surat Kuasa Melampaui Kewenangan yang Diberikan Berdasarkan Hukum Perdata di Indonesia (Putusan Pengadilan Cirebon Nomor 104/PDT.G/2012/PN.Cbn)
Authors: Andryawan Andryawan , Setia N Sakthi Rahayu , Arnold Arnold , Widianto Alfin Prananda
Published: November 2024

In modern life, buying and selling activities typically involve three main parties: the first party as the seller, the second party as the buyer, and the third party, who may act as a witness or guarantor. Given the involvement of multiple parties, it is often necessary to issue a power of attorney to ensure the smoothness and legality of the transaction process. However, abuse of authority under the granted power of attorney frequently occurs, as seen in Cirebon District Court Case No. 104/PDT.G/2012/PN.Cbn. This study explores the legal consequences of abuse of authority under a power of attorney, focusing on the Cirebon District Court Case No. 104/PDT.G/2012/PN.Cbn. The research employs a normative juridical method to examine relevant legal regulations and principles of Indonesian civil law. The findings indicate that acts by an attorney that exceed the scope of the granted authority can render the power of attorney null and void by law, and the defendant’s actions of selling the plaintiff’s land, exceeding the authority of the power of attorney, may be deemed a violation that harms the principal. Furthermore, such abuse also creates legal uncertainty for the parties involved. These findings reinforce the importance of limiting powers in order to maintain legal certainty and protect the principal. In conclusion, there is a need for supervision and regulatory updates in the use of powers of attorney in Indonesia to prevent abuse.
Potensi Pembangkit Listrik Tenaga Mikro Hidro (PLTMH) di Sungai Ciseel
Authors: Hendrasari Ratna Septi , Nurlaeli Maya
Published: November 2024

Pembangkit listrik tenaga mikro hidro (PLTMH) merupakan teknologi yang dapat dikembangkan di daerah-daerah yang jauh dari jangkauan jaringan Listrik.  PLTMH ini menjadi salah satu sumber listrik yang ramah lingkungan. Penelitian ini dilakukan di Sungai Ciseel, Jawa Barat. Tujuan dari penelitian ini adalah untuk mengetahui potensi Sungai Ciseel sebagai tempat pembangkit listrik tenaga hidro mikro, yang diharapkan dapat dimanfaatkan oleh masyarakat di Kota Banjar dalam mencukupi kebutuhan listrik rumah tangganya. Data penelitian berupa data debit dan data kondisi lokasi studi. Data debit diperoleh dari Balai Besar Wilayah Sungai (BBWS) Citanduy, Kota Banjar, Jawa Barat. Data kondisi lokasi studi diperoleh dengan melakukan pengukuran dan tinjauan langsung ke Sungai Ciseel. Penelitian ini dilakukan di sekitar Jembatan Ciseel. Potensi daya listrik yang dapat dihasilkan, didasarkan pada hasil analisis debit andalan dan head.  Analisis debit andalan merupakan suatu analisis untuk memperkirakan besaran debit yang selalu tersedia dalam jangka waktu yang cukup lama dengan keandaan tertentu, di suatu aliran sungai. Sedangkan head merupakan selisih antara elevasi masuknya air ke dalam bangunan pengambilan (intake) sampai dengan lokasi rumah turbin. Dari hasil penelitian diperoleh bahwa potensi daya listrik rerata yang dapat dibangkitkan di Sungai Ciseel adalah 11235,22 kWh. Potensi ini dapat untuk memenuhi kebutuhan listrik masyarakat bagi 97 rumah tangga.
Manajemen Risiko Perencanaan Bangunan Pengaman Pantai di Kabupaten Buleleng Bali
Authors: Ritaka Wangsa Anak Agung Ratu , Praganingrum Tjokorda Istri , Istri Lestari I Gusti Agung Ayu , Mirayani Pradnyadari Ni Luh Made Ayu
Published: November 2024

Kabupaten Buleleng memiliki panjang pantai 128,2 kilometer, dengan 30,56 kilometer (23,84%) di antaranya mengalami kerusakan akibat erosi.  Upaya penanganan erosi pantai telah dilakukan, namun masih terdapat 12,11 kilometer pantai yang belum tertangani. Tujuan penelitian ini adalah menganalisis risiko erosi di Pantai Celukan Bawang dan Pantai Les Tejakula, serta memberikan rekomendasi strategis untuk perencanaan dan desain bangunan pengaman pantai, guna mengurangi dampak erosi dan melindungi infrastruktur serta ekosistem pesisir. Metode penelitian yang digunakan adalah kualitatif untuk identifikasi risiko dan kuantitatif melalui kuesioner kepada 28 responden. Hasil penelitian menunjukkan terdapat 28 risiko yang teridentifikasi dari 8 sumber risiko, dengan risiko yang bersumber dari manusia sebagai sumber risiko dominan. Temuan penelitian ini menunjukkan bahwa mayoritas 23 risiko (80%) dari total 28 risiko yang teridentifikasi dikelola oleh Konsultan Perencana, sementara hanya 5 risiko (20%) berasal dari pemilik pekerjaan. Ini menunjukkan pentingnya penguatan peran konsultan dalam perencanaan dan mitigasi risiko untuk merancang pengelolaan risiko yang lebih terintegrasi dan efisien.
Sistem Monitoring Water Turbidity Aquaculture Pada Budidaya Ikan Lele Bebasis PLTS
Authors: Jamiyanti Eva , Agustini Eka Herlina , Fata Indra
Published: November 2024

Budidaya ikan lele merupakan salah satu sektor perikanan yang memiliki potensi besar di Indonesia. Namun, pada kualitas air khususnya kekeruhan atau turbidity  menjadi tantangan utama yang mempengaruhi pertumbuhan dan kesehatan ikan lele. Sistem yang dirancang terdiri dari sensor kekeruhan, unit kontrol, dan modul komunikasi yang ditenagai oleh Pembangkit Listrik Tenaga Surya (PLTS). Metodologi penelitian mencakup studi literatur, desain sistem, pengembangan prototipe, uji lapangan, analisis data, dan evaluasi sistem. Hasil dari uji lapangan menunjukkan bahwa sistem monitoring  ini dapat memberikan data real-time tentang tingkat kekeruhan air, memungkinkan petani ikan lele untuk mengambil tindakan yang cepat dan tepat. Penggunaan PLTS sebagai sumber energi utama merupakan solusi  inovatif yang efisien dan berkelanjutan. Sistem ini dapat menghemat listrik hingga 45% penggunaan listrik dan dapat mengcover 95% kebutuhan listrik pada system monitoring turbdity aquaculture  untuk meningkatkan kualitas air dalam budidaya ikan lele. Hal menunjukkan pengurangan biaya operasional dan dampak lingkungan yang lebih rendah. Implementasi teknologi ini dapat mengetahui kekeruha yang dapat ditoleransi untuk kualitas hidup ikan lele yaitu 26 NTU dan kekeruhan yang maksimal yaitu kurang dari 50 NTU. Evaluasi sistem menunjukkan peningkatan produktivitas dan kesehatan ikan lele, serta keuntungan ekonomi yang signifikan bagi petani ikan.
Optimizing Induction Motor Fault Detection with Transfer Learning: A Comparative Analysis of Deep Learning Models
Authors: Issah Hakeem , Prince Kwabena Asante , Kelvin Osei Boateng , Afful Elvis , Awuah Norbert , Osumanu Alhassan
Published: November 2024

With the advancements of Industry 4.0, condition monitoring maintenance has become essential for preventing equipment failures and operational disruptions. Motor Current Signature Analysis (MCSA) is commonly utilized for condition monitoring to detect and diagnose various faults in Induction Motors (IMs). Despite its popularity, there is limited research comparing deep learning models for Induction Motor fault detection and classification with traditional approaches. This study explores the detection and classification of Induction Motor faults using three Transfer Learning (TL) models: InceptionV3, ResNet152, and VGG19. The research began by modeling a Squirrel Cage induction motor in MATLAB to simulate healthy, single- phasing, and double-phasing conditions, capturing time- domain stator current signatures (current spectrum) to identify fault characteristics. The data were then used to assess the effectiveness of the TL models in detecting and classifying motor faults. Around 500 datasets were created from these simulated conditions, labeled accordingly, and used to train and validate the TL models, each incorporating additional convolutional layers to enhance performance. Model evaluation utilized metrics such as the multiclass confusion matrix, precision, recall, and F1-score across various fault scenarios. Results indicate that stator current signatures can effectively reveal individual faults, with ResNet152 outperforming the other models in classification accuracy. These findings highlight that applying transfer learning techniques with a limited amount of current signature data can support predictive maintenance in industrial settings, potentially reducing costly equipment shutdowns and disruptions in production.
Remote Environmental Monitoring System Using DHT11
Authors: Zrioual Hajar , Toluwalase Adewale Isogun , Bahaa Eddine Cherkaoui
Published: November 2024

This document proposes the implementation of a remote environmental monitoring system using the DHT11 sensor, NodeMCU microcontroller, and ThingSpeak IoT analytics platform. It emphasizes the importance of temperature and humidity measurements in industrial applications and the value of real-time monitoring for safety and process optimization. The proposed system leverages the DHT11 sensor's capabilities to provide precise and continuous data, which is transmitted to ThingSpeak for visualization and analysis. The methodology section details the system's structural design, analytical approach, and code analysis, highlighting its adherence to IoT principles. The results and discussion section presents the system's performance, demonstrating its accuracy and potential for data-driven decision-making. However, it also acknowledges the limitations of the DHT11 sensor and suggests areas for further analysis and improvement. Overall, the document provides a comprehensive overview of the system's architecture, methodology, and results, showcasing its potential for environmental monitoring in industrial and IoT applications.
Net Zero Energy Residential Homes, the Future of Sustainable Living: A Mixed Method Approach to Examine the Social, Economic and Environmental Impact
Authors: Roderick Ngong Diangha , Charles Bwemba , Lionel Ntamag Jacques
Published: November 2024

The aim of this article is to provide an understanding literature review on net zero energy residential homes, examining their potential to shape a sustainable future. The article will explore the evolution of residential homes, technological advancements driving the adoption of net zero residential homes and the societal benefits and challenges associated with this homes.by synthesizing existing research this study seeks to add to a deeper understanding of net zero residential homes as a promising solution for sustainable living and info future policy and research direction.
Informe del Gerente General 1958
Authors:   Federación Nacional de Cafeteros de Colombia
Published: November 2024

Labores de la Federación Nacional de Cafeteros de Colombia 1937-1957.
Antiviral Flavonoids as a Potential Substitute for Overcoming Antiviral Resistance
Authors: Anand Shubham , Bajhaiya Manoj kumar , Singh Sakshi , Sharma Aman , Patel Hemant Singh , Raj Harshit , Raj Dipanshu , Rajput Ankit , kumar Veerchand , Pandy Vickey
Published: November 2024

Antiviral resistance has emerged as a major global health challenge, undermining the efficacy of conventional antiviral drugs. This has led researchers to explore alternative therapeutic agents, with flavonoids gaining attention due to their potent antiviral properties. Derived from natural sources such as fruits, vegetables, and herbs, flavonoids have demonstrated broad-spectrum antiviral activities across various viral infections, including respiratory, gastrointestinal, exanthematous, hepatic, cutaneous, hemorrhagic, and neurological viral diseases. This review synthesizes current findings on the antiviral mechanisms of flavonoids, highlights their role in combating antiviral resistance, and compares their efficacy with standard antiviral therapies. By focusing on specific molecular targets, we propose flavonoids as viable candidates for overcoming the challenges of viral resistance in modern medicine.
Revisiting the Relationship Between Rocky Exoplanet and Stellar Compositions: Reduced Evidence for a Super-Mercury Population
Authors: Brinkman Casey L. , Polanski Alex S. , Huber Daniel , Weiss Lauren M. , Valencia Diana , Plotnykov Mykhaylo
Published: November 2024

Planets and the stars they orbit are born from the same cloud of gas and dust, and the primordial compositions of rocky exoplanets have been assumed to have iron and refractory abundance ratios consistent with their host star. To test this assumption, we modeled the interior iron-to-rock ratio of 20 super-Earth-sized (1–1.8 R
⊕) exoplanets around stars with homogeneously measured stellar parameters. We computed the core mass fraction (CMF) for each planet and an equivalent “core mass fraction” for each host star based on its Fe and Mg abundances. We then fit a linear correlation using two methods (ordinary least squares and orthogonal distance regression) between planetary and stellar CMF, obtaining substantially different slopes between these two methods (m = 1.3 ± 1.0 and m = 5.6 ± 1.6, respectively). Additionally, we find that 75% of planets have a CMF consistent with their host star to within 1σ, and do not identify a distinct population of high-density super-Mercuries. Overall, we conclude that current uncertainties in observational data and differences in modeling methods prevent definitive conclusions about the relationship between planet and host-star chemical compositions.
KIC 6362386: An Eclipsing Binary with γ Doradus–type Pulsations and Starspots
Authors: Jin Mengqi , Fu Jianning , Zhang Xiaobin , Zong Weikai , Wang Jiaxin , Ma Xiaoyu , Xing Keyu , Wang Haotian
Published: November 2024

KIC 6362386 is an eclipsing binary system that exhibits both γ Doradus (γ Dor)–type pulsations and starspots. In this study, we investigated this binary system using the Kepler photometry and the spectroscopic data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope. After employing the PHOEBE program for light-curve and radial-velocity-curve synthesis, analyses reveal that the binary is a circle (e ∼ 0.0006), has a small mass ratio (q ∼ 0.311), and is a detached system consisting of an F-type primary star and an M-type secondary star with masses and radii of M
1 = 1.43 ± 0.13 M
⊙, R
1 = 1.68 ± 0.08 R
⊙ and M
2 = 0.44 ± 0.18 M
⊙, R
2 = 0.46 ± 0.06 R
⊙, respectively. Utilizing the Padova isochrone, we estimate the age of the binary system to be

1.58

−
0.13

+
0.15

Gyr. By analyzing the out-of-eclipse residuals, we identify variations in the residuals attributed to both starspots and stellar pulsations. The autocorrelation function analysis indicates the decay time of starspots is approximately 37 days with the rotation period aligning with the orbital period. Considering the masses, radii, and positions of the two components on the Hertzsprung–Russell diagram, we deduce that the γ Dor–type g-mode pulsations came from the primary star where the main frequency is 0.1642c/d. Consequently, KIC 6362386 becomes a valuable target for the investigation of γ Dor–type pulsations and asteroseismology in a binary system.
Reflected-light Phase Curves with PICASO: A Kepler-7b Case Study
Authors: Hamill Colin D. , Johnson Alexandria V. , Batalha Natasha , Nag Rowan , Gao Peter , Adams Danica , Kataria Tiffany
Published: November 2024

Examining reflected light from exoplanets aids in our understanding of the scattering properties of their atmospheres and will be a primary task of future flagship space- and ground-based telescopes. We introduce an enhanced capability of Planetary Intensity Code for Atmospheric Scattering Observations (PICASO), an open-source radiative transfer model used for exoplanet and brown dwarf atmospheres, to produce reflected light phase curves from three-dimensional atmospheric models. Since PICASO is coupled to the cloud code Virga, we produce phase curves for different cloud condensate species and varying sedimentation efficiencies (f
sed) and apply this new functionality to Kepler-7b, a hot Jupiter with phase curve measurements dominated by reflected starlight. We model three different cloud scenarios for Kepler-7b: MgSiO3 clouds only, Mg2SiO4 clouds only, and Mg2SiO4, Al2O3, and TiO2 clouds. All our Virga models reproduce the cloudy region west of the substellar point expected from previous studies, as well as clouds at high latitudes and near the eastern limb, which are primarily composed of magnesium silicates. Al2O3 and TiO2 clouds dominate near the substellar point. We then compare our modeled reflected light phase curves to Kepler observations and find that models with all three cloud condensate species and low sedimentation efficiencies (0.03–0.1) match best, though our reflected light phase curves show intensities approximately one-third of those observed by Kepler. We conclude that a better understanding of zonal transport, cloud radiative feedback, and particle scattering properties is needed to further explain the differences between the modeled and observed reflected light fluxes.
A Self-consistent Model of Shock-heated Plasma in Nonequilibrium States for Direct Parameter Constraints from X-Ray Observations
Authors: Ohshiro Yuken , Suzuki Shunsuke , Okada Yoshizumi , Suzuki Hiromasa , Yamaguchi Hiroya
Published: November 2024

X-ray observations of shock-heated plasmas, such as those found in supernova remnants (SNRs), often exhibit features of temperature and ionization nonequilibrium. For accurate interpretation of these observations, proper calculations of the equilibration processes are essential. Here, we present a self-consistent model of thermal X-ray emission from shock-heated plasmas that accounts for both temperature and ionization nonequilibrium conditions. For a given pair of shock velocity and initial electron-to-ion temperature ratio, the temporal evolution of the temperature and ionization state of each element was calculated by simultaneously solving the relaxation processes of temperature and ionization. The resulting thermal X-ray spectrum was synthesized by combining our model with the AtomDB spectral code. Comparison between our model and the nei model, a constant-temperature nonequilibrium ionization model available in the XSPEC software package, reveals a 30% underestimation of the ionization timescale in the nei model. We implemented our model in XSPEC to directly constrain the shock wave’s properties, such as the shock velocity and collisionless electron heating efficiency, from the thermal X-ray emission from postshock plasmas. We applied this model to archival Chandra data of the SNR N132D, providing a constraint on the shock velocity of ∼800 km s−1, in agreement with previous optical studies.
Velocity-resolved Reverberation Mapping of Changing-look Active Galactic Nucleus NGC 4151 during Outburst Stage. II. Results of Four Seasons of Observation
Authors: Feng Hai-Cheng , Li Sha-Sha , Bai J. M. , Liu H. T. , Lu Kai-Xing , Pang Yu-Xuan , Sun Mouyuan , Wang Jian-Guo , Zhang Yang-Wei , Zhou Shuying
Published: November 2024

We present the results of a four-year velocity-resolved reverberation mapping (RM) campaign of the changing-look active galactic nucleus (CL-AGN) NGC 4151 during its outburst phase. By measuring the time lags of the Hα, Hβ, Hγ, He i, and He ii emission lines, we confirm a stratified broad-line region (BLR) structure that aligns with predictions from photoionization models. Intriguingly, we observed an “anti-breathing” phenomenon, where the lags of broad emission lines decreased with increasing luminosity, contrary to the typical expectation. This anomaly may be attributed to the influence of the ultraviolet-optical lag or nonvirialized motions in the BLR gas. Velocity-resolved RM and ionization mapping analyses revealed rapid and significant changes in the BLR geometry and kinematics on timescales of less than a year, which cannot be interpreted by any single mechanism, such as an inhomogeneous BLR, variations in radiation pressure, or changes in the illuminated ionizing field. Additionally, the Hβ lags of NGC 4151 and other CL-AGNs agree with the radius–luminosity relationship established for AGNs with low accretion rates, implying that the CL phenomenon is more likely driven by intrinsic changes in the accretion rate rather than obscuration. These findings provide new insights into the complex internal processes of CL-AGNs and highlight the importance of long-term, multiline RM for understanding BLR structures, geometry, and kinematics.
Quasi-linear Analysis of Proton-cyclotron Instability
Authors: Yoon Peter H. , López Rodrigo A. , Seough Jungjoon , Rashid Muhammad , Salem Chadi S. , Sarfraz Muhammad , Lazar Marian , Shaaban Shaaban M.
Published: November 2024

The proton-cyclotron (PC) instability operates in various space plasma environments. In the literature, the so-called velocity moment-based quasi-linear theory is employed to investigate the physical process of PC instability that takes place after the onset of early linear exponential growth. In this method, the proton velocity distribution function (VDF) is assumed to maintain a bi-Maxwellian form for all time, which substantially simplifies the analysis, but its validity has not been rigorously examined by comparing against the actual solution of the kinetic equation. The present paper relaxes the assumption of the velocity moment-based quasi-linear theory by actually solving for the velocity space diffusion equation under the assumption of separable perpendicular and parallel VDFs, and upon comparison with the simplified velocity moment theory, it demonstrates that the simplified method is largely valid, despite the fact that the method slightly overemphasizes the relaxation of temperature anisotropy when the system is close to the marginally stable state. The overall validation is further confirmed with the results of particle-in-cell and hybrid-code simulations. The present paper thus provides a justification for making use of the velocity moment-based quasi-linear theory as an efficient first-cut theoretical tool for the PC instability.
Modeling the X-Ray Emission of the Boomerang Nebula and Implication for Its Potential Ultrahigh-energy Gamma-Ray Emission
Authors: Chen Xiao-Bin , Liang Xuan-Han , Liu Ruo-Yu , Wang Xiang-Yu
Published: November 2024

The Boomerang Nebula is a bright radio and X-ray pulsar wind nebula (PWN) powered by an energetic pulsar, PSR J2229+6114. It is spatially coincident with one of the brightest ultrahigh-energy (UHE; ≥100 TeV) gamma-ray sources, LHAASO J2226+6057. While X-ray observations have provided radial profiles for both the intensity and photon index of the nebula, previous theoretical studies have not reached an agreement on their physical interpretation, which also leads to different anticipation of the UHE emission from the nebula. In this work, we model its X-ray emission with a dynamical evolution model of PWN, considering both convective and diffusive transport of electrons. On the premise of fitting the X-ray intensity and photon index profiles, we find that the magnetic field within the Boomerang Nebula is weak (∼10 μG in the core region and diminishing to 1 μG at the periphery), which therefore implies a significant contribution to the UHE gamma-ray emission by the inverse Compton (IC) radiation of injected electron/positron pairs. Depending on the particle transport mechanism, the UHE gamma-ray flux contributed by the Boomerang Nebula via the IC radiation may constitute about 10%–50% of the flux of LHAASO J2226+6057 at 100 TeV and up to 30% at 500 TeV. Finally, we compare our results with previous studies and discuss potential hadronic UHE emission from the PWN. In our modeling, most of the spindown luminosity of the pulsar may be transformed into thermal particles or relativistic protons.
A new species of the genus Truncocolumella (Basidiomycota, Boletales) found in the Hengduan Mountains of China
Authors: Li Lin , Wan Shanping , Wang Yun , Thongklang Naritsada , Luo Zonglong , Li Shuhong
Published: November 2024

During surveys of hypogeous fungi in the Hengduan Mountains, south-western China, three specimens of the genus Truncocolumella were discovered in Sichuan Province.

Morphological and molecular analyses revealed that the collections represent a new species, Truncocolumella pseudocolumella. This article describes the new species and discusses its relationship with the other two members of the genus.
New taxonomic and faunistic data on the funnel-weavers (Araneae, Agelenidae) of Turkiye and the Caucasus, with five new species
Authors: Zamani Alireza , Kaya Rahşen S. , Marusik Yuri M.
Published: November 2024

New taxonomic and faunistic data on the agelenid spiders of Turkiye and the Caucasus are provided. Five species are described as new to science: Maimuna antalyensissp. nov. (♂♀; Turkiye: Antalya), Tegenaria ballarinisp. nov. (♂♀; Turkiye: Antalya), T. beyazcikasp. nov. (♂; Turkiye: Antalya), T. egrisianasp. nov. (♂♀; Georgia: Imereti), and T. hoeferisp. nov. (♂♀; Armenia: Kotayk). Tegenaria lazarovi Dimitrov, 2020, syn. nov. is proposed as a new junior synonym of T. averni Brignoli, 1978. Persiscape caucasica (Guseinov, Marusik & Koponen, 2005) is newly reported from Armenia, and T. chumachenkoi Kovblyuk & Ponomarev, 2008 is reported for the first time from Turkiye. New distribution records for T. dalmatica Kulczyński, 1906, T. hamid Brignoli, 1978, T. longimana Simon, 1898 and T. percuriosa Brignoli, 1972, and topotype material for T. tekke Brignoli, 1978 are reported. The record of Eratigena fuesslini (Pavesi, 1873) from Turkiye is found to be based on a misidentification, and is herein attributed to T. hamid. The presence of an embolic spine, unknown in any other species of Tegenaria, is documented in T. anhela Brignoli, 1972 for the first time. Photographs are provided for all treated species.
Boundedness and large time behavior of a signal-dependent motility system with nonlinear indirect signal production
Authors: Tian Ya , Luo Jing
Published: November 2024

In this paper, we study a chemotaxis system with nonlinear indirect signal production

   \begin{document}$ \left\{ {\begin{array}{*{20}{l}} {{u_t} = \Delta \left( {\gamma \left( v \right) u } \right)}+ru-\mu u^l, \quad &x\in \Omega, t>0, \\ {{v_t} = \Delta v - v + w^{\beta}}, \quad &x\in \Omega, t>0, \\ {{w_t} = - \delta w + u}, \quad &x\in \Omega, t>0, \end{array}} \right. $\end{document}

under homogeneous Neumann boundary conditions in a smooth bounded domain $ \Omega \subset {\mathbb{R}^n}(n\geq2) $, where the parameters $ r $, $ \mu $, $ \beta $, $ \delta > 0 $, and $ l > 1 $, the motility function $ \gamma\in C^{3}([0, \infty)) $, $ \gamma(v) > 0 $ is bounded, $ \gamma^{'}(v) < 0 $, and $ \frac{\gamma^{'}(v)}{\gamma(v)} $ is bounded. We show that if $ {\frac{l}{\beta}} > {\frac{n}{2}} $, the system has a unique global classical solution. Moreover, the solution exponentially converges to $ ((\frac{r} {\mu})^{\frac{1}{l-1}}, (\frac{1}{\delta})^{\beta}(\frac{r}{\mu})^{\frac{\beta}{l-1}}, \frac{1}{\delta}(\frac{r}{\mu})^{\frac{1}{l-1}})) $ in the large time limit under some extra hypotheses.
Application of fixed point result to solve integral equation in the setting of graphical Branciari $ {\aleph } $-metric spaces
Authors: Ramaswamy Rajagopalan , Mani Gunaseelan
Published: November 2024

In this present paper, we introduce graphical Branciari $ \aleph $-metric space and prove the fixed point theorem for $ \varOmega $-$ \mathcal{Q} $-contraction on complete graphical Branciari $ \aleph $ -metric spaces. Our result has been supplemented with suitable, non trivial examples. We have applied the derived fixed point result to solve non-linear Fredholm integral equations and fractional differential equation.
NGBoost algorithm-based prediction of mechanical properties of a hot-rolled strip and its interpretability research with ANOVA values
Authors: Wu Hongyi , Jin Jinwen , Li Zhiwei
Published: November 2024

Hot-rolled strip steel is an essential material extensively used in various industrial fields, with its mechanical properties being critical to product quality and engineering design. This article presents a method for predicting the mechanical properties of hot-rolled strip steel using the NGBoost (natural gradient boosting) algorithm. The study focused on predicting tensile strength, yield strength, and elongation of hot-rolled strip steel and compared the predictive results with those obtained from the gradient boosting algorithm, Lasso regression, and decision tree algorithms. The results indicated that the NGBoost algorithm performs well on average coverage error (ACE) and prediction interval absolute width (PIAW) values at different confidence levels, demonstrating strong predictive performance. Furthermore, the analysis of variance (ANOVA) method was employed to identify factors that significantly impact mechanical performance, providing theoretical support for optimizing design schemes and enhancing structural safety and reliability.
Strategy evolution of a novel cooperative game model induced by reward feedback and a time delay
Authors: Gong Haowen , Xiang Huijun , Wang Yifei , Gao Huaijin , Meng Xinzhu
Published: November 2024

Rewarding cooperators and punishing defectors are effective measures for promoting cooperation in evolutionary game theory. Given that previous models treated rewards as constants, this does not reflect real-world dynamics changes. Therefore, this paper focused on the classical payoff matrix and examined the dynamic variable rewards affected by cooperation and defection strategies, as well as the impact of time delays. First, for the system without a time delay, we analyzed the existence and stability of numerous equilibrium points and explored transcritical bifurcations under various conditions. Second, for the time-delay system, we discussed a series of delayed dynamical behaviors including Hopf bifurcation, period, and the stability and direction of bifurcation. Finally, the changes of cooperation strategy were observed by numerical simulation, and some interesting results were obtained: (ⅰ) Under certain circumstances, even if the reward given to the cooperators reaches the maximum, the proportion of cooperators is still zero, which means that increasing rewards does not always promote cooperation. (ⅱ) The initial state can affect the choice of cooperation strategy and defection strategy. (ⅲ) The increase of the time delay makes the stable equilibrium point disappear and forms a stable limit cycle.
Diahroni razvoj frazema solzna dolina / dolina solz v slovenskem knjižnem jeziku
Authors: Trivunović Eva
Published: November 2024

V članku je predstavljen diahroni razvoj frazema solzna dolina / dolina solz, ki je bil v prvih obdobjih slovenskega knjižnega jezika izjemno pogost. Razlog za njegovo izstopajočo frekvenco bi lahko bilo pojavljanje frazema v antifoni Salve regina. Prvi ohranjeni zapis te antifone v slovenskem jeziku je iz 15. stoletja, torej ima na Slovenskem že dolgo tradicijo, kasneje pa je pogosto bila del lekcionarjev in brevirja. Na podlagi raznovrstnih gradivskih in slovarskih virov je predstavljeno spreminjanje oblike, pomena in rabe frazema od 16. stoletja do sodobnega časa.
INFLUENCE OF CLIMATE ON THE COUPLED HEAT AND MOISTURE TRANSFER THERMAL CALCULATION IN CHINA
Authors: Luo Daiwei , Li Yunxi , Liu Jiaping
Published: November 2024

The climate in China varies substantially across its extensive territory. However, the traditional thermal design of buildings is primarily based on pure heat calculation that considers only heat transfer. Therefore, the heat transfer of a building envelope should be clarified under the action of periodic external disturbance circulation. In this study, four different climatic factors were selected for heat transfer simulation, including season, solar radiation, air temperature, and relative humidity. The results indicate that the outdoor relative humidity has a significant impact on the difference between coupled heat and moisture calculation and pure thermal calculation. This influence becomes evident in the cooling conditions in summer but weakens in the winter heating conditions. Accordingly, the meteorological data of 270 cities in China were statistically analyzed using Python programming language. The concept of "cooling high-humidity days" was proposed as a zoning indicator for coupled heat and humidity thermal calculation zoning. The coupled heat and moisture thermal calculation design zoning map of China is provided, which affords the specific calculation method in building thermal design.
Le texte à l’épreuve de la gravure : l’exposition des images dans Les Triomphes de Louis le Juste de Jean Valdor (1649)
Authors: Teyssandier Bernard
Published: November 2024

Les nombreux textes (vers et prose) que rassemble le « livre-galerie » de Jean Valdor sont-ils vraiment à même, comme l’indique la page de titre, d’exposer les images, autrement dit de les décrire ? Ce dont ces textes, dans leur diversité, témoignent, c’est moins de l’aptitude de la poésie à décrire qu’à mettre en récit les actions, à célébrer et à animer. Quant à la gravure, sa fonction n’est pas tant d’exprimer la beauté et la magnificence que de les figurer.
Un Anglais à Paris. L’apprentissage de Walter Dover, et les deux Jacques Granthomme (1601)
Authors: Mathis Rémi
Published: November 2024

À travers l’édition de ce contrat d’apprentissage, nous apportons une pierre à l’édifice de la biographie de Jacques Granthomme, que l’on voit ici travailler à Paris de manière pérenne en 1601 tandis que son père, du même nom, est demeuré à Heidelberg. Originalité, c’est un jeune homme anglais, Walter Dover, qui devient son apprenti pour quatre ans, de manière gratuite. Le contrat ne concerne pas la gravure mais les autres activités de Jacques Granthomme : enluminure, impression et commerce.
Factors Affecting Technology Acceptance of Cloud Computing in ICT Departments of the Jordanian Government Hospitals
Authors: Alnassar Bilal Ali Yaseen , Baashirah Rania Abuzneid
Published: November 2024

This article investigates the technological acceptance of cloud computing in the information and communications technology departments of Jordanian government hospitals. Data was collected from 165 participants (including junior, senior, and managerial staff) in 24 Jordanian hospitals in 2023. For in-depth analysis, Smart PLS 4.1.0.2 was used to evaluate the model and test the hypotheses. The results supported all hypotheses, indicating that performance expectancy, effort expectancy, social influence, cloud risks, and facilitating conditions significantly influence both the behavioral intention and use behavior of cloud computing. Finally, the findings suggest that behavioral intention of cloud computing plays a mediating role in the relationship between the predictors and actual use behavior of cloud computing.
Three new Odonata species (cf. Cephalozygoptera and cf. Dysagrionidae) from the early Eocene Okanagan Highlands of British Columbia, Canada, and Washington, United States of America
Authors: Archibald S. Bruce , Cannings Robert A.
Published: November 2024

Three new species of Ypresian (early Eocene) Odonata are described: Paradysagrion sosbyaegen. and sp. nov. from the Klondike Mountain Formation at Republic, Washington, United States of America, and Dysagrionites allenbyensissp. nov. and Allenby gen. and sp. A from the Allenby Formation near Princeton, British Columbia, Canada. All three are assigned to the Dysagrionidae and Cephalozygoptera but only tentatively, as key diagnostic morphology is missing from their incomplete fossils. The definition of the collective genus Dysagrionites is broadened to include odonates tentatively assigned to the Dysagrioninae (Dysagrionidae) that are distinct as species but have unclear nominal genus affinity.
The effect of silver and calcium fluoride nanoparticles on antibacterial activity of composite resin against Streptococcus mutans: An in vitro study
Authors: Fathi Mehdi , Hosseinali Zahra , Molaei Tina , Hekmatfar Somayeh
Published: November 2024

Background:

Recurrent caries were attributed to the lack of antibacterial properties of the dental materials. Silver nanoparticles (AgNPs) and calcium fluoride nanoparticles (CaF2NPs) are broad-spectrum antibacterial agents. The object of the study was to investigate the antibacterial properties of composite-incorporated AgNPs and CaF2NPs on Streptococcus mutans.

Materials and Methods:

This experimental study forty-eight disks containing 0.5, 1, and 1.5% wt AgNPs s (n = 24) and 5, 10, and 15% wt CaF2NPs were prepared from flowable composite resin (n = 24). The third group consisted of 9 types of the combination of AgNPs and CaF2NPs (n = 72). A field emission scanning electron microscope with an energy-dispersive X-ray spectroscopy analysis system was used to test for the presence of nanoparticles in composite resins. The antibacterial efficacy of dental composite was evaluated by disk diffusion agar test. The minimum inhibitory concentration (MIC) and minimal bactericidal concentration were conducted. Data were analyzed using one-way ANOVA and multiple Tukey HSD (Honestly Significant Difference) tests. Significance level was set at 0.05.

Results:

Nanoparticles added to composite produce bacterial inhibition zone. The greatest inhibition of bacterial growth was recorded in the third group which contained both nanoparticles (P < 0.05). MIC values decreased after adding CaF2 NPs to the AgNPs-containing composite. The results of the FE-SEM test indicate the presence of AgNPs and CaF2NPs in the dental composite resin sample. On the other hand, the formation of AgNPs and their elemental nature were proved using energy dispersive X-ray microanalysis EDX analysis. According to the results, composite resins containing 0.5% of AgNPs s and 15% of CaF2NPs exhibited a significantly lower antibacterial activity compared to the 1.5% and 1% of AgNPs s with 15% of CaF2NPs (P < 0.05).

Conclusion:

Dental composite resins-containing CaF2NPs and AgNPs showed anti-bacterial activity against S. mutans.
Construction and Application Analysis of an Intelligent Distribution Network Identification System Based on Deep Neural Networks
Authors: Ma Yu
Published: November 2024

INTRODUCTION: At present, the communication between measuring data and network topology in the distribution system cannot be accurately established. Therefore, deep neural networks were utilized to learn the mapping relationship between the measurement data and network topology, achieving topology structure discrimination under different working conditions.OBJECTIVES: This study aims to establish a machine learning-based Intelligent Distribution Network (IDN) online topology recognition model to address the limited measurement equipment in distribution networks and improve the accuracy and efficiency of network topology recognition.METHODS: First, light GBM was used for feature selection to reduce computational complexity and improve learning efficiency. Then, a DNN model was constructed for topological identification and enhances the model scalability through incremental and transfer learning mechanisms. In addition, the Cross-Validation Grid Search Algorithm (GSA) was used to optimize the hyperparameters to ensure that the model can achieve the optimal performance on different data sets. Finally, a new intelligent distribution network identification model (Intelligent Distribution Electricity Network Identification System, IDENIS) was constructed.RESULTS: The study was experimentally verified on the distribution system of IEEE 33 and PG&E 69. The experimental results showed that the accuracy of the DNN-based model reached 0.9817 on the test set, while the accuracy after feature selection only decreased by 1.3%, and the features decreased by 81.8%. In the PG&E 69 node system, the features were reduced by 85.5%, while the identification accuracy was decreased by only 0.51%. These results demonstrated that the proposed method maintained high identification accuracy while reducing the computational resource consumption.CONCLUSION: Its efficient computing speed fully meets the real-time requirements in practical applications. This paper provides new ideas and methods for achieving intelligent distribution network topology recognition of high proportion distributed power sources.
The Feasibility of Meeting CARB / EPA 3 Emission Regulations for Small Engines
Authors: Douglas Roy , Glover Stephen
Published: November 2024

With annual worldwide production of over 100 million units, small off-road engines (SORE) have been recognised as a major source of air pollution. It is estimated that non handheld SORE products in circulation annually produce over 1 million tonnes of HC+NOx and over 50 million tonnes of CO2. These SORE did not have to meet any emissions control legislation until its introduction in the USA in 1995. Since then the gradual implementation of several stages of increasingly more severe legislation has resulted in a decade of intensive emissions control development for utility engines. New carburetted stratified charge 2-stroke engines and catalytic after-treatment are being developed for the handheld products where weight and multi-orientation operation are key requirements. For the non-handheld 4-stroke dominated market, manufacturers are looking at improved fuel system design, improved engine design and the use of after-treatment to meet current and future legislative requirements. The bulk of the total 4-stroke SORE engine market, at around 65%, is taken up by single cylinder 4-stroke gasoline engines of under 6hp or under around 160cc. In this, the largest segment of the market, manufacturers must look to more conventional or new technologies that can be applied without significant add on cost or more preferable with a cost reduction. This paper presents the rational for the proposed EPA / CARB approach to meeting Phase 3 legislation with SORE and considers several possible alternative strategies.
Organic Exhaust Analysis from Ethanol Mixture Fueled Small Engines
Authors: LIN Manqun , JIA Bin , YAN Xicheng , ZHANG Shun
Published: November 2024

Ethanol as oxygen additive has potential dangerous that might make poisonous organic compound exhaust more than that from pure gasoline fueled engines. This paper was concerned to methods research of sampling, separating and analysis of unconventional HC exhaust emission. Aimed at the difficult problem of formaldehyde measurement, author enriched formaldehyde by water and then measured by means of ultraviolet-visible spectrometer. The minimum measuring limits of formaldehyde was remarkably promoted to 0.02×10-6 (V/V). Furthermore, Solid-Phase Extraction Column which was pre-coated by dinitrophenylhydrazone (DNPH) was selected to catch aldehyde and ketone by chemical reaction which is so called ramification, and then measured by Liquid-chromatography. Up to now, more than 8 different organic have been determined. It was shown that formaldehyde as high toxicity exhaust emission was much more than that from gasoline fueled engine.
Updating of Analytical Models for Vibration Prediction of Two-Wheelers
Authors: Balla Vamsi Krishna , Marudachalam Kannan , Hegde Mahabaleshwar
Published: November 2024

In this work, a finite element modal analysis of motorcycles in various configurations - frame only, frame with engine, frame with engine and handlebar - is carried out using general purpose FE software. Experimental modal analysis (EMA) is performed on the actual physical systems in the above configurations. The results from the analytical FE models are compared with those derived from the experimental models. Good correlations are demonstrated for the analytical models up to 250 Hz using modal parameters - natural frequencies and mode shapes. Techniques for updating the finite element models that yield improved correlation with test data are explored. Further, it will be shown that good quality component models are necessary, but not sufficient, for realizing full-vehicle models that could predict vibration responses accurately. It is demonstrated that the connector modeling is very essential in building good assembly level models. It is shown that the complete vehicle model of motorcycle that is built with updated assemblies can be effectively used to trouble shoot problems, thus reducing the product development time.
Application of Inverse Boundary Element Method to Vibration Identification of Co-generation System
Authors: UEHARA Hiroshi , SAITO Masahiro , KOIZUMI Takayuki , TSUJIUCHI Nobutaka
Published: November 2024

This paper describes the application of inverse boundary element method (Inverse BEM) to vibration identification on surface of Co-generation System enclosure. This method is a kind of matrix inversion using singular value decomposition. Therefore it is significant to select proper tolerance in order to identify vibration accurately. In this study, the tolerance selection method is proposed. First step, the surface velocity of numerical model with unit input was obtained by Finite Element Method. The sound pressure around the model was obtained by BEM. Second step, random noise was mixed with obtained sound pressure. Third step, by using Inverse BEM, the surface velocity was identified from the sound pressure with noise. Next, the error between the identified velocity and the velocity obtained by FEM were evaluated and the tolerance is selected to minimize the error. Final step, surface velocity in operational condition was identified from measured sound pressure and the selected tolerance by Inverse BEM. As a result, a good agreement was observed between measured velocity and identified velocity.