bluuebunny/crossref_metadata_2025_split huggingface dataset:
High‐performance self‐healing anticorrosion epoxy coating based on microencapsulated epoxy‐amine chemistry
Authors: Xie Cheng , Cheng Chuanrei , Zhao Peng , Xiao Yuan , Zhang He , Xiong Daoying , Wang Yao , Zhang Chen , Ran Shiyu , Jiang Chuanxia 
Published: December 2023

AbstractAttributed to the merits of excellent material compatibility, healing performance, and long‐term stability, the self‐healing system based on microencapsulated epoxy‐amine chemistry is a potentially practical self‐healing system for both structural and functional materials. Herein, based on the microencapsulated epoxy‐amine chemistry, a self‐healing anticorrosion coating was successfully developed. This self‐healing coating system was modeled theoretically to explore the factors that influence the crack filling and the self‐healing anticorrosion function. The established quantitative relationship shows that the filling depth of the crack in the coating is proportional to the microcapsule parameters and coating thickness, but inversely proportional to the crack width. Based on the above theoretical model, the effects of various parameters on the anticorrosion performance were experimentally studied. The actual filling of small in‐situ cracks (<100 μm) generated by impact damage was semi‐quantitatively characterized using scanning electron microscopy (SEM). The filling behavior is consistent with the theoretical modeling. After being healed at room temperature for 2 days upon impact damage, the formulated self‐healing coatings were subjected to accelerated corrosion tests in 10 wt% sodium chloride (NaCl) solution for 2 days to observe their anticorrosion behavior. Compared to the neat epoxy coating, all the formulated self‐healing epoxy coatings show evident anticorrosion function. Good self‐healing anticorrosion performance was achieved by adding 10.0 wt% microcapsules with a size of 100–150 μm to the coating with a thickness of 300 μm. The results of this investigation laid a theoretical and technical foundation for the further development of both the self‐healing chemistry and the self‐healing anticorrosion coating.
A method to improve the barrier performance of flexible riser internal pressure sheath—Heat transfer experiment and simulation
Authors: Meng Xiaoyu , Wen Jihong , Liu Yulun , Song Hongjie , Wang Mei , Wang Yuanyuan , Zhou Qiong 
Published: December 2023

AbstractA considerable amount of acidic gas penetrates into the annulus between the internal pressure sheath and the outer protective sheath during the service of flexible risers, which will inevitably lead to corrosion of the metal functional layer. Many researchers have modified nanocomposites from the mass transfer perspective to reduce the materials' permeability coefficient. While permeation is an integrated process of heat and mass transfer process, heat distribution directly impacts gas permeation. Herein, the thermal conductivity of flexible riser liner materials is predicted for the first time by a combination of molecular dynamics and experiments, and then the radial temperature distribution under different seawater temperatures and internal fluid temperatures is investigated by finite element analysis. Finally, the effect of temperature distribution on the permeation coefficient was analyzed. The results demonstrate that the thermal conductivity can be predicted by molecular dynamics simulation, and the thermal conductivity of (polyvinylidene difluoride) PVDF/TiO2 decreases, while the thermal conductivity of PVDF/carbon nanotube (CNT) increases compared with pure PVDF. The temperature distribution of the internal pressure sheath material decreases when condensate water is present. As the fluid temperature rises from 30 to 110°C, the maximum increase ratio in the permeability of PVDF/CNT over PVDF increased from 3.6% to 14.8%, and the maximum decrease ratio of PVDF/TiO2 permeability coefficient compared with PVDF is from 1.2% to 4.6%. The results present a new idea to improve the barrier properties of materials by decreasing thermal conductivity.
Effect of powder–liquid ratio and admixture on properties of metakaolin‐based geopolymer coating
Authors: Lv Geyun , Liu Jiesheng , Zhang Man , Tan Xiaoming , Wu Xiaoyu , Gu Zhong , Wang Yuansheng 
Published: December 2023

AbstractProtective coating is one of the effective ways to help concrete structures resist environmental erosion. However, most of the existing coating materials are organic compounds, which have the disadvantages of poor durability and high energy consumption. In this study, metakaolin with excellent durability was used as the main raw material, and a flexible and waterproof ethylene‐vinyl acetate emulsion was added to improve the high brittleness characteristics of metakaolin, resulting in a metakaolin‐based geopolymer coating material. Through tests such as water absorption, hardness, gloss, and tensile properties, we investigated the effects of the powder–liquid ratio and the type and amount of admixture on the properties of the coating. The results show that the coating exhibits better performance when the powder‐to‐liquid ratio is 0.6. Based on this, it was found that the optimal dosage of water‐reducing agent, coupling agent, and defoamer was 0.7%, 0.3%, and 0.3%, respectively.
Thermal resistance of polyurethane adhesives containing aluminum hydroxide and dealkaline or alkaline lignin
Authors: Yi Sujin , Cho Sehyun , Lee Chan‐Ki , Cho Young‐Jun 
Published: December 2023

AbstractFor the sustainability of the polyurethane resin (PUR) industry, petroleum‐based materials must be replaced with renewable resource and economic aspects must be considered. Lignin is a renewable, thermostable biomass consisted with a phenolic polymer. As a thermostable bio‐filler for PUR adhesives, acidic or basic lignin was blended with an amphiprotic inorganic filler, to reduce the resins and product costs due to cheap, unmodified materials. The thermal resistance of the PUR adhesives was evaluated by measuring adhesion before and after heating and with and without a mechanical effect caused by substrate penetration. The results show that after heating at 200°C, the PURs containing 7.5 or 15 wt% of dealkaline lignin or 7.5 wt% of alkaline lignin decomposed more slowly than the lignin‐free PUR. The properties of the PURs were also analyzed using Fourier‐transform infrared spectroscopy and differential scanning calorimetry. Additionally, the PURs containing over 30 wt% of dealkaline lignin show potential as environmentally friendly water‐blown PUR foams.
Influence mechanism of injection process parameters on iridescent pattern defects on optical molded parts
Authors: Yuan Sinan , Qiu Zhongjun 
Published: December 2023

AbstractIridescent patterns are insufferable molding defects during mass manufacturing of polymer optic devices by using injection molding (IM) technique and seriously affect the appearance and imaging performance of parts. However, at present, the research on the factors affecting iridescent pattern defects is lacking, resulting in the difficulty of obtaining effective methods to weaken iridescent pattern defects. This article aims to clarify the correlation mechanism between injection process parameters and iridescent patterns and provide a theoretical basis for reducing iridescent pattern defects. Based on the process characteristics of IM and the optical mechanism of iridescent patterns, the correlation between iridescent patterns and influencing factors such as optical characteristics and the material structure is established. The influence mechanism of process parameters on iridescent patterns is further clarified by experiments. The results show the iridescent pattern color is related to the retardation, while the iridescent pattern brightness is affected by the retardation and transmittance. Process parameters change the retardation and transmittance by varying factors such as the thickness, birefringence, and crystallinity. Higher mold temperature, reasonable melt temperature, injection speed, and holding pressure are conducive to reducing the colorful fringe area and iridescent pattern brightness, thereby weakening the iridescent patterns on the part.
Freedivers harvest thousands of sea turtles a year in the Solomon Islands
Authors: Hamilton Richard , Vuto Simon , Brown Christopher , Waldie Peter , Pita John , Babaua Rose , Masu Rosalie , Peterson Nate , Madden Hof Christine , Limpus Col 
Published: December 2023

Abstract

Sea turtles are harvested in many small‐scale fisheries (SSFs), but few nations have quantified the impacts that SSFs are having on their sea turtle stocks. This study provides the first assessment on the catch composition, national harvest rates, and long‐term trends in sea turtle catches in the Solomon Islands SSFs.
Between October 2016 and May 2018, 10 community monitors located in eight of the nine provinces of the Solomon Islands were trained and employed to work alongside fishers in their respective communities to document, photograph, and georeference the reefs where sea turtles were harvested. Local ecological knowledge (LEK) surveys were then conducted with 32 experienced fishers to infer whether the harvest rates of sea turtles had changed in recent decades.
Community monitors recorded information on 1,132 sea turtles that were harvested on 529 fishing trips: 1,119 sea turtles were identified to species level, with harvests consisting of 73.3% (n = 818) green sea turtles (Chelonia mydas), 25.7% hawksbill sea turtles (n = 291) (Eretmochelys imbricata), and 0.9% (n = 10) olive ridley sea turtles (Lepidochelys olivacea).
The great majority (92.6%) of sea turtles were captured by night‐time and daytime freedivers who use masks, snorkels, fins, hooks, spears, and underwater flashlights to target a wide range of fauna that inhabit coral reefs.
A methodology that accounts for spatial heterogeneity in sea turtle catch rates was used to estimate that the SSFs of the Solomon Islands harvested 11,184 sea turtles per year, with a 95% confidence interval of 5,862–23,717 sea turtles.
Experienced freedivers reported a 4.9‐fold decline in sea turtle harvest rates over the past 30 years, indicating that the sea turtle stocks of the Solomon Islands are being overfished.
The results and recommendations from this study were integrated into the Solomon Islands National Plan of Action for Marine Turtles 2023–2027.
Developments in the chemistry and biology of 1,2,3‐triazolyl‐C‐nucleosides
Authors: Nascimento Sarah Moreira Rodrigues do , Ferry Angélique , Gallier Florian , Lubin‐Germain Nadège , Uziel Jacques , Gonzales Simon , Miranda Leandro Soter de Mariz e 
Published: December 2023

AbstractIn the last 50 years, nucleoside analogs have been introduced to drug therapy as antivirals for different types of cancer due to their interference in cellular proliferation. Among the first line of nucleoside treatment drugs, ribavirin (RBV) is a synthetic N‐nucleoside with a 1,2,4‐triazole moiety that acts as a broad‐spectrum antiviral. It is on the World Health Organization (WHO) list of essential medicines. However, this important drug therapy causes several side effects due to its nonspecific mechanism of action. There is thus a need for a continuous study of its scaffold. A particular approach consists of connecting
d‐ribose to the nitrogen‐containing base with a C–C bond. It provides more stability against enzymatic action and a better pharmacologic profile. The coronavirus disease (COVID) pandemic has increased the need for more solutions for the treatment of viral infections. Among these solutions, remdesivir, the first C‐nucleoside, has been approved by the Food and Drug Administration (FDA) for clinical use against severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2). It drew attention to the study of the C‐nucleoside scaffold. Different C‐nucleoside patterns have been synthesized over the years. They show many important activities against viruses and cancer cell lines. 1,2,3‐Triazolyl‐C‐nucleoside derivatives are a prolific and efficient subclass of RBV analogs close to the already‐known RBV with a C–C bond modification. These compounds are often prepared by alkynylation of the
d‐ribose ring followed by azide‐alkyne cycloaddition. They are reported to be active against the Crimean‐Congo hemorrhagic fever virus and several tumoral cell lines, showing promising biological potential. In this review, we explore such approaches to 1,2,3‐triazolyl‐C‐nucleosides and their evolution over the years.
Asynchronous finite‐time dynamic output feedback control for discrete‐time switched linear systems with admissible edge‐dependent average dwell time
Authors: Wang Mengjiao , Wu Baowei , Wang Yue‐E , Liu Lili , Yan Rongrong 
Published: December 2023

AbstractThis paper is concerned with the problem of asynchronous finite‐time dynamic output feedback (DOF) control for a class of discrete‐time switched linear systems under the admissible edge‐dependent average dwell time (AED‐ADT) switching scheme. The main goal of the paper is to design a DOF controller to ensure that the resulting closed‐loop system is finite‐time bounded with AED‐ADT switching and has a specific
performance. Firstly, some new sufficient conditions for stability criterion and
performance analysis are established based on the multiple Lyapunov functionals technique and the linear matrix inequalities method. Secondly, a type of DOF controllers that guarantee that the closed‐loop system has desired performance is designed. Finally, the effectiveness of the proposed approaches is elaborated with a numerical example.
Finite‐time bipartite synchronization of T–S fuzzy coupled neural networks via quantized adaptive control
Authors: Yang Ting , Chen Meishan , Long Pujun , Zhang Wanli 
Published: December 2023

AbstractBased on the framework of signed graphs, this paper investigates the finite‐time (FET) bipartite synchronization of Takagi‐Sugeno (T–S) fuzzy coupled neural networks with output coupling and state‐dependent parameters. Adaptive control schemes with quantizer are designed, and generalized norm is considered. Based on the framework of bipartite synchronization and FET synchronization, several sufficient conditions are established to realize the goal of synchronization by using Lyapunov functional method. Moreover, some numerical simulations are provided to illustrate the theoretical results.
Erythrocytes' surface properties and stiffness predict survival and functional decline in ALS patients
Authors: Lopes Catarina S. , Pronto‐Laborinho Ana Catarina , Conceição Vasco A. , Freitas Teresa , Matias Gonçalo L. , Gromicho Marta , Santos Nuno C. , de Carvalho Mamede , Carvalho Filomena A. 
Published: December 2023

AbstractErythrocytes play a fundamental role in oxygen delivery to tissues and binding to inflammatory mediators. Evidences suggest that dysregulated erythrocyte function could contribute to the pathophysiology of several neurodegenerative diseases. We aimed to evaluate changes in morphological, biomechanical, and biophysical properties of erythrocytes from amyotrophic lateral sclerosis (ALS) patients, as new areas of study in this disease. Blood samples were collected from ALS patients, comparing with healthy volunteers. Erythrocytes were assessed using atomic force microscopy (AFM) and zeta potential analysis. The patients' motor and respiratory functions were evaluated using the revised ALS Functional Rating Scale (ALSFRS‐R) and percentage of forced vital capacity (%FVC). Patient survival was also assessed. Erythrocyte surface roughness was significantly smoother in ALS patients, and this parameter was a predictor of faster decline in ALSFRS‐R scores. ALS patients exhibited higher erythrocyte stiffness, as indicated by reduced AFM tip penetration depth, which predicted a faster ALSFRS‐R score and respiratory subscore decay. A lower negative charge on the erythrocyte membrane was predictor of a faster ALSFRS‐R and FVC decline. Additionally, a larger erythrocyte surface area was an independent predictor of lower survival. These changes in morphological and biophysical membrane properties of ALS patients' erythrocytes, lead to increased cell stiffness and morphological variations. We speculate that these changes might precipitate motoneurons dysfunction and accelerate disease progression. Further studies should explore the molecular alterations related to these observations. Our findings may contribute to dissect the complex interplay between respiratory function, tissue hypoxia, progression rate, and survival in ALS.
Hsp Inhibitor is Affective Against Adenocarcinomic Human Alveolar Basal Epithelial Cells Through Modulating ERK/MAPK Signaling Pathway
Authors: Tunoğlu Servet , Tutar Lütfi , Gümüş Mehmet , Tunoğlu Ezgi Nurdan Yenilmez , Koca İrfan , Tutar Yusuf 
Published: December 2023

AbstractThe extracellular signal‐regulated kinase (ERK) ‐ mitogen‐activated protein kinase (MAPK) pathway regulates cell proliferation, differentiation, and apoptosis. Heat Shock Protein 90 (HSP90) is required to activate proto‐oncogenic protein kinases and promotes tumor growth through anti‐apoptotic effects on A549‐non‐small cell lung cancer (NSCLC). Therefore, deregulation of the ERK‐MAPK pathway and abnormal expression of HSP90 are reasonably frequent events in NSCLC. In this study, novel perimidine‐pyrazole compounds employed to block ERK‐MAPK deregulation through inhibiting HSP dependent cancer cell survival mechanisms. A set of perimidine‐pyrazole derivatives effects was monitored on NSCLC cell line. Array experiments performed to understand the effect of the compounds on signaling pathways and results were analyzed by gene enrichment analysis. Further, senescence and apoptosis experiments were performed to support the enrichment results along with in silico methods to determine perimidine‐pyrazole/HSP interactions. Treatment of NSCLC cells with perimidine‐pyrazole derivatives displayed cancer‐inhibitory, pro‐senescent and pro‐apoptotic effects on NSCLC cells through ERK/MAPK pathway and these compounds are promising templates for designing anticancer drugs
Efficacy of Rotundic Acid and Its Derivatives as Promising Natural Anticancer Triterpenoids: A Literature‐Based Study
Authors: Bhuia Md. Shimul , Chowdhury Raihan , Sonia Fatema Akter , Biswas Shrabonti , Ferdous Jannatul , El‐Nashar Heba A. S. , El‐Shazly Mohamed , Islam Muhammad Torequl 
Published: December 2023

AbstractRotundic acid (RA) is a naturally occurring pentacyclic triterpene with a multitude of pharmacological activities. The primary emphasis of this study is on summarizing the anticancer properties with the underlying mechanisms of RA and its derivatives, as well as the pharmacokinetic features. Data was collected (up to date as of November 10, 2023) from various reliable and authentic literatures by searching in different academic search engines, including PubMed, Springer Link, Scopus, Wiley Online, Web of Science, ScienceDirect, and Google Scholar. The findings imply that RA and its synthetic derivatives possess promising anti‐cancer properties against breast, colorectal, liver, and cervical cancers in various preclinical pharmacological test systems. The results also indicate that RA and its derivatives demonstrated anticancer effects via a number of cellular mechanisms, including apoptotic cell death, inhibition of oxidative stress, anti‐inflammatory effect, cytotoxicity, cell cycle arrest, anti‐proliferative effect, anti‐angiogenic effect, and inhibition of cancer cell migration and invasion. It has been proposed that RA and its derived compounds have the capability to serve as a hopeful chemotherapeutic agent, so further extensive clinical research is necessary.
Current stage of preclinical and clinical development of guggulsterone in cancers: Challenges and promises
Authors: Ijaz Shumaila , Iqbal Javed , Abbasi Banzeer Ahsan , Tufail Aasma , Yaseen Tabassum , Uddin Siraj , Usman Kiran , Ullah Rafi , Bibi Haseena , Inam Palwasha , Sagindykova Elvira , Gürer Eda Sönmez , Habtemariam Solomon , Calina Daniela , Sharifi‐Rad Javad 
Published: December 2023

AbstractThroughout human history, the utilization of medicinal herbs has been recognized as a crucial defense against various ailments, including cancer. Natural products with potential anticancer properties, capable of inducing apoptosis in cancer cells, have garnered substantial attention. One such agent under investigation is guggulsterone (GS), a phytosterol derived from the gum resin of the Commiphora mukul tree. This review aims to provide a comprehensive summary of recent studies elucidating the anticancer molecular mechanisms and molecular targets of GS, guiding future research and potential applications as an adjuvant drug in cancer therapy. Recent in vivo and in vitro studies have explored the biological activities of the active ingredients in Commiphora mukul. Specifically, GS emerges as a potential cancer chemopreventive and therapeutic agent. The investigations delve into the impact of GS on constitutively activated survival pathways, including Janus kinase/signal transducer and activator of transcription (JAK/STAT), nuclear factor‐kappa B (NF‐kB), and PI3‐kinase/AKT signaling pathways. These pathways regulate antiapoptotic and proinflammatory genes, exerting control over growth and inflammatory responses. The findings highlight the potential of GS in disrupting survival pathways crucial for cancer cell viability. The inhibition of JAK/STAT, NF‐kB, and PI3‐kinase/AKT signaling pathways positions GS as a promising candidate for cancer therapy. The review synthesizes evidence from diverse studies, underscoring the multifaceted biological activities of GS in cancer prevention and treatment. To advance our understanding, future clinical and translational studies are imperative to determine effective doses in humans. Additionally, there is a need for the development of new pharmaceutical forms of GS to optimize therapeutic effects. This comprehensive review provides a foundation for ongoing research, offering insights into the potential of GS as a valuable addition to the armamentarium against cancer.
A Functional Electrolyte Containing P‐Phenyl Diisothiocyanate (PDITC) Additive Achieves the Interphase Stability of High Nickel Cathode in a Wide Temperature Range
Authors: Gao Xiang , Zeng Xueyi , Hu Huilin , Li Haijia , He Xin , Fan Weizhen , Fan Chaojun , Yang Tianxiang , Ma Zhen , Nan Junmin 
Published: December 2023

AbstractThe lithium‐ion batteries (LIBs) with high nickel cathode have high specific energy, but as the nickel content in the cathode active material increases, batteries are suffering from temperature limitations, unstable performance, and transition metal dissolution during long cycling. In this work, a functional electrolyte with P‐phenyl diisothiocyanate (PDITC) additive is developed to stabilize the performance of LiNi0.8Co0.1Mn0.1O2 (NCM811)/graphite LIBs over a wide temperature range. Compared to the batteries without the additive, the capacity retention of the batteries with PDITC‐containing electrolyte increases from 23 % to 74 % after 1400 cycles at 25 °C, and from 15 % to 85 % after 300 cycles at 45 °C. After being stored at 60 °C, the capacity retention rate and capacity recovery rate of the battery are also improved. In addition, the PDITC‐containing battery has a higher discharge capacity at −20 °C, and the capacity retention rate increases from 79 % to 90 % after 500 cycles at 0 °C. Both theoretical calculations and spectroscopic results demonstrate that PDITC is involved in constructing a dense interphase, inhibiting the decomposition of the electrolyte and reducing the interfacial impedance. The application of PDITC provides a new strategy to improve the wide‐temperature performance of the NCM811/graphite LIBs.