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  • Open Access

    ARTICLE

    Comparative Flood Hazard Assessment in Assam’s Belsiri River Basin Using AHP and MaxEnt Models

    Nilotpal Kalita1,*, Ashok Kumar Bora2, Rana Sarmah3, Dhrubajyoti Sahariah2, Manash Jyoti Nath2,*

    Revue Internationale de Géomatique, Vol.34, pp. 37-51, 2025, DOI:10.32604/rig.2024.058265 - 13 January 2025

    Abstract Flooding is a natural event often associated with floodplain areas, characterised by large, sudden and significant rises in river water levels that drastically alters the surrounding landscape. The research employs ArcGIS tools, multi-criteria evaluation techniques and the Maximum Entropy (MaxEnt) model to assess flood hazard zones. The key physical elements of slope, elevation, rainfall, drainage density, land use, and soil types have been integrated to identify areas vulnerable to flooding. Overlay analysis has been used to construct zones specifically designated for flood hazards. Additionally, pairwise comparison using Saaty’s scale was employed to calculate the Eigenvector More > Graphic Abstract

    Comparative Flood Hazard Assessment in Assam’s Belsiri River Basin Using AHP and MaxEnt Models

  • Open Access

    ARTICLE

    Effect of Concentration and Residence Time of Joncryl®ADR4368 on Melt Processability of Poly(3-hydroxybutyrate)

    Jéssica da Silva Chagas1,2, José Elson Soares Filho1,2, Natália Fernanda Inocêncio Silva1,2, Marcelo Massayoshi Ueki3, Eliton Souto de Medeiros1,2, Renate Maria Ramos Wellen1, Mauricio Pinheiro de Oliveira4, Gelsoneide da Silva Gois5, Yêda Medeiros Bastos de Almeida5, Amélia S. F. Santos1,2,*

    Journal of Renewable Materials, Vol.12, No.12, pp. 2079-2094, 2024, DOI:10.32604/jrm.2024.055361 - 20 December 2024

    Abstract Poly(3-hydroxybutyrate) (PHB) is a biothechnological and biodegradable thermoplastic polymer from the polyhydroxyalkanoates (PHAs) family, whose chain regularity, high molecular weight, and physical and mechanical properties comparable to polypropylene (PP) are characteristics that have made PHB a prominent commercial bioplastic. Nevertheless, its susceptibility to thermal degradation and hydrolysis has limited many applications. To address the challenges associated with processing, a random copolymer of 95.86 mol% 3-hydroxybutyrate and 4.14 mol% 3-hydroxyvalerate (referred as PHB) was compounded without (neat PHB) and with 0.25, 0.5, 1, and 1.5 wt% of chain extender (Joncryl®ADR 4368), consisting of multifunctional epoxy groups, and… More >

  • Open Access

    ARTICLE

    An Efficient Plant Regeneration System for Different Explants of Rare and Endangered Plants in Mussaenda anomala

    Gaoyin Wu1,#, Yundou Pang1,#, Ya Tan1, Zhongcheng Peng1, Shuanggui Geng1, Guanglin Tao2, Qiuying Li1, Shuang Wang1, Lihong Zhang1, Quanyan Tian1, Yingliang Liu1,*

    Phyton-International Journal of Experimental Botany, Vol.93, No.10, pp. 2597-2611, 2024, DOI:10.32604/phyton.2024.056875 - 30 October 2024

    Abstract To establish an efficient regeneration method for the rare and endangered plant Mussaenda anomala to address problems regarding its reproductive obstacles and scarce populations. In this study, the terminal buds, axillary buds, stem segments with two axillary buds, stem segments with two axillary buds and one terminal bud, and leaves of M. anomala were used as explants. The effects of different explants and disinfection methods, plant growth regulators and substrates on plant regeneration were explored. The following results were obtained: (1) The terminal bud was a suitable explant for M. anomala tissue culture, and the disinfection method utilized… More >

  • Open Access

    ARTICLE

    Dynamic Networking Method of Vehicles in VANET

    Qingkun Chen, Qinmu Wu*

    CMC-Computers, Materials & Continua, Vol.81, No.1, pp. 1301-1318, 2024, DOI:10.32604/cmc.2024.054799 - 15 October 2024

    Abstract Vehicular Ad-hoc Networks (VANETs) make it easy to transfer information between vehicles, and this feature is utilized to enable collaborative decision-making between vehicles to enhance the safety, economy, and entertainment of vehicle operation. The high mobility of vehicles leads to a time-varying topology between vehicles, which makes inter-vehicle information transfer challenging in terms of delay control and ensuring the stability of collaborative decision-making among vehicles. The clustering algorithm is a method aimed at improving the efficiency of VANET communication. Currently, most of the research based on this method focuses on maintaining the stability of vehicle… More >

  • Open Access

    ARTICLE

    Message Verification Protocol Based on Bilinear Pairings and Elliptic Curves for Enhanced Security in Vehicular Ad Hoc Networks

    Vincent Omollo Nyangaresi1,2, Arkan A. Ghaib3, Hend Muslim Jasim4, Zaid Ameen Abduljabbar4,5,6,*, Junchao Ma5,*, Mustafa A. Al Sibahee7,8, Abdulla J. Y. Aldarwish4, Ali Hasan Ali9,10, Husam A. Neamah11

    CMC-Computers, Materials & Continua, Vol.81, No.1, pp. 1029-1057, 2024, DOI:10.32604/cmc.2024.053854 - 15 October 2024

    Abstract Vehicular ad hoc networks (VANETs) provide intelligent navigation and efficient route management, resulting in time savings and cost reductions in the transportation sector. However, the exchange of beacons and messages over public channels among vehicles and roadside units renders these networks vulnerable to numerous attacks and privacy violations. To address these challenges, several privacy and security preservation protocols based on blockchain and public key cryptography have been proposed recently. However, most of these schemes are limited by a long execution time and massive communication costs, which make them inefficient for on-board units (OBUs). Additionally, some… More >

  • Open Access

    ARTICLE

    Net Effect of Short-Term Smoking Cessation on Mental Health Changes: Inverse Probability of Treatment Weighting and Difference-in-Differences Method

    Ji-Su Park1, Tae-Hyeon Lee2, Il-Su Park3,*

    International Journal of Mental Health Promotion, Vol.26, No.9, pp. 745-755, 2024, DOI:10.32604/ijmhp.2024.054630 - 20 September 2024

    Abstract Background: In response to the need for research clearly demonstrating the net effect of smoking cessation on mental health status, considering the causal relationship between smoking cessation and changes in mental health status, this study was undertaken. Thus, this study aimed to examine the net effect of short-term smoking cessation on five specific mental health metrics and the overall mental health status score. Methods: We used data from the first wave of the Korean Health Panel (KHP) Survey (2011–2013, 2016–2018) and focused on men aged 19 years and older, to explore the effects of smoking… More >

  • Open Access

    ARTICLE

    Blockchain-Based Message Authentication Scheme for Internet of Vehicles in an Edge Computing Environment

    Qiping Zou1, Zhong Ruan2,*, Huaning Song1

    Computer Systems Science and Engineering, Vol.48, No.5, pp. 1301-1328, 2024, DOI:10.32604/csse.2024.051796 - 13 September 2024

    Abstract As an important application of intelligent transportation system, Internet of Vehicles (IoV) provides great convenience for users. Users can obtain real-time traffic conditions through the IoV’s services, plan users' travel routes, and improve travel efficiency. However, in the IoV system, there are always malicious vehicle nodes publishing false information. Therefore, it is essential to ensure the legitimacy of the source. In addition, during the peak period of vehicle travel, the vehicle releases a large number of messages, and IoV authentication efficiency is prone to performance bottlenecks. Most existing authentication schemes have the problem of low… More >

  • Open Access

    ARTICLE

    Cartographie Automatique et Comptage des Arbres Oliviers A Partir de L’Imagerie de Drone par Un Reseau de Neurones Covolutionnel

    Oumaima Ameslek1,*, Hafida Zahir2, Soukaina Mitro2, El Mostafa Bachaoui1

    Revue Internationale de Géomatique, Vol.33, pp. 321-340, 2024, DOI:10.32604/rig.2024.054838 - 03 September 2024

    Abstract L’agriculture de précision (AP) est une stratégie de gestion agricole fondée sur l’observation, la mesure et la réponse à la variabilité des cultures inter/intra-champ. Il comprend des avancées en matière de collecte, d’analyse et de gestion des données, ainsi que des développements technologiques en matière de stockage et de récupération de données, de positionnement précis, de surveillance des rendements et de télédétection. Cette dernière offre une résolution spatiale, spectrale et temporelle sans précédent, mais peut également fournir des informations détaillées sur la hauteur de la végétation et diverses observations. Aujourd’hui, le succès des nouvelles technologies… More >

  • Open Access

    ARTICLE

    Fake News Detection Based on Cross-Modal Message Aggregation and Gated Fusion Network

    Fangfang Shan1,2,*, Mengyao Liu1,2, Menghan Zhang1,2, Zhenyu Wang1,2

    CMC-Computers, Materials & Continua, Vol.80, No.1, pp. 1521-1542, 2024, DOI:10.32604/cmc.2024.053937 - 18 July 2024

    Abstract Social media has become increasingly significant in modern society, but it has also turned into a breeding ground for the propagation of misleading information, potentially causing a detrimental impact on public opinion and daily life. Compared to pure text content, multmodal content significantly increases the visibility and share ability of posts. This has made the search for efficient modality representations and cross-modal information interaction methods a key focus in the field of multimodal fake news detection. To effectively address the critical challenge of accurately detecting fake news on social media, this paper proposes a fake… More >

  • Open Access

    ARTICLE

    A Novel ISSA–DELM Model for Predicting Rock Mass Permeability

    Chen Xing1, Leihua Yao1,*, Yingdong Wang2

    CMES-Computer Modeling in Engineering & Sciences, Vol.140, No.3, pp. 2825-2848, 2024, DOI:10.32604/cmes.2024.049330 - 08 July 2024

    Abstract In pumped storage projects, the permeability of rock masses is a crucial parameter in engineering design and construction. The rock mass permeability coefficient (K) is influenced by various geological parameters, and previous studies aimed to establish an accurate relationship between K and geological parameters. This study uses the improved sparrow search algorithm (ISSA) to optimize the parameter settings of the deep extreme learning machine (DELM), constructing a prediction model with flexible parameter selection and high accuracy. First, the Spearman method is applied to analyze the correlation between geological parameters. A sample database is built by comprehensively… More >

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