Journal of Imaging Science and Technology最新文献

Effects of inorganic fillers on the performance of acrylic emulsion intumescent fire retardant coating 无机填料对丙烯酸乳液膨胀型防火涂料性能的影响

4区计算机科学

Journal of Imaging Science and Technology Pub Date : 2025-12-12 DOI: 10.15625/2525-2518/17649

Nguyen Anh Hiep, Dao Phi Hung, Van Phuc Mac, Nguyen Thien Vuong, Trinh Van Thanh

{"title":"Effects of inorganic fillers on the performance of acrylic emulsion intumescent fire retardant coating","authors":"Nguyen Anh Hiep, Dao Phi Hung, Van Phuc Mac, Nguyen Thien Vuong, Trinh Van Thanh","doi":"10.15625/2525-2518/17649","DOIUrl":"https://doi.org/10.15625/2525-2518/17649","url":null,"abstract":"Lớp phủ chống cháy đầu vào gốc nước có tác dụng bảo vệ chống cháy thụ động hiệu quả. Chất độn chống cháy đã được nghiên cứu và sử dụng để cải thiện hiệu quả chống cháy và tính chất cơ học của lớp phủ. Nghiên cứu này nhằm đánh giá ảnh hưởng của CaCO 3 và bột talc đối với tính năng của lớp phủ chống cháy dạng nước phun vào gốc. Các đặc tính của lớp phủ được khảo sát đã được kiểm tra bằng thử nghiệm chống cháy (thử nghiệm đầu đốt Bunsen), thử nghiệm lò nung, thử nghiệm ngâm nước tĩnh, kính hiển vi điện tử quét (SEM), phân tích nhiệt trọng lượng (TGA), đo nhiệt lượng quét vi sai (DSC) và các tính chất cơ học (độ bám dính, độ cứng của con lắc). Kết quả cho thấy talc hoặc CaCO 3giảm hệ số hút khí I của các lớp phủ. Bột talc được nạp vào lớp phủ có hệ số hút khí I thấp hơn so với lớp phủ chứa đầy CaCO 3 . Tuy nhiên, cả hai chất độn, tức là CaCO 3 và bột talc, có thể tăng cường khả năng chống cháy và tăng độ ổn định nhiệt của lớp phủ chống cháy dạng ống khói. Lớp phủ có tải trọng 5% trọng lượng chất độn thông thường (Al (OH) 3 và TiO 2 ) được thay thế bằng CaCO 3 cho thấy khả năng chống cháy cao nhất trong số các lớp phủ được khảo sát. Nhiệt độ ở mặt sau của tấm thép cuối cùng sau 60 phút đốt thử nghiệm của các mẫu sơn này chỉ là 165 o C. Tuy nhiên, mẫu phủ chứa đầy 5% trọng lượng CaCO 3có khả năng chống nước kém. Sau khi ngâm nước trong 7 ngày, khối lượng của lớp phủ chứa 5% trọng lượng CaCO 3 mất 14,77%, trong khi lớp phủ chứa chất độn thông thường giảm 3,28% trọng lượng.","PeriodicalId":15924,"journal":{"name":"Journal of Imaging Science and Technology","volume":"63 6","pages":"1094-1106"},"PeriodicalIF":0.0,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://vjs.ac.vn/jst/article/download/17649/2543256420","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147885421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of AMPS-based polycarboxylate superplasticizer on early hydration of cement and its mechanism 聚羧酸酯型高效减水剂对水泥早期水化的影响及其机理

4区计算机科学

Journal of Imaging Science and Technology Pub Date : 2025-10-29 DOI: 10.1016/j.jrst.2025.10.004

Chi Zhang, Xiaokai Niu, Wenxiu Li, Xiao Liu, Xinru Sun, Zhitian Xie, Jun Wang, Ming Liu, Minghui Jiang, Simai Wang, Ziming Wang

{"title":"Effect of AMPS-based polycarboxylate superplasticizer on early hydration of cement and its mechanism","authors":"Chi Zhang, Xiaokai Niu, Wenxiu Li, Xiao Liu, Xinru Sun, Zhitian Xie, Jun Wang, Ming Liu, Minghui Jiang, Simai Wang, Ziming Wang","doi":"10.1016/j.jrst.2025.10.004","DOIUrl":"https://doi.org/10.1016/j.jrst.2025.10.004","url":null,"abstract":"2-acrylamide-2-methylpropanesulfonic acid (AMPS) has attracted much attention in the field of admixture design because of its highly electronegative sulfonic acid groups. However, the number of AMPS introduced has different effects on the early strength of cement-based materials, and its role in the early hydration of cement and the mechanism are still unclear. In this study, inducing early strength polycarboxylate superplasticizer (IES-PCEs) was synthesized from 2-hydroxyethyl poly (ethylene glycol) vinyl ether (EPEG), acrylic acid (AA) and AMPS at different molar ratios. The results showed thatIES-PCE-5 % performed excellent water reduction performance and early strengthening effect, which could increase the compressive strength of mortar by 89.93 % at 1 d and increase the cumulative heat release by 43.03 % at 3 d hydration. It was interesting that the appropriate introduction of AMPS could convert the sulfonic acid group (-SO 3 − ) into SO 4 2− in the cement pore solution environment, forming \"secondary gypsum\" with Ca 2+ . This can prolong the induction period and acceleration period of hydration, significantly promote the production of early ettringite (AFt). AFt and hydration products such as calcium hydroxide (CH) and calcium silicate hydrate (C-S-H) form a complex three-dimensional network structure, which promotes the development of early strength of cement-based materials. The aim of this study is to provide the research basis for the development of high-performance polycarboxylate superplasticizer materials that meet the requirements of early strength of cement-based materials in railway engineering construction.","PeriodicalId":15924,"journal":{"name":"Journal of Imaging Science and Technology","volume":"1 2","pages":"135-146"},"PeriodicalIF":0.0,"publicationDate":"2025-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147898824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Suitability of Fobur Biotite – Granite as an Aggregate Construction Material, Jos, North Central Nigeria Fobur黑云母花岗岩作为集料建筑材料的适宜性，尼日利亚中北部乔斯

4区计算机科学

Journal of Imaging Science and Technology Pub Date : 2025-07-30 DOI: 10.64290/bima.v9i2b.1304

Abalaka Isaac Edimeh, Okopi Johnson Odumu

{"title":"Suitability of Fobur Biotite – Granite as an Aggregate Construction Material, Jos, North Central Nigeria","authors":"Abalaka Isaac Edimeh, Okopi Johnson Odumu","doi":"10.64290/bima.v9i2b.1304","DOIUrl":"https://doi.org/10.64290/bima.v9i2b.1304","url":null,"abstract":"The physical properties of the Fobur Granites in Plateau State were examined with the aim of determining their suitability as aggregates for construction. Some rock samples were collected from different points within the study area. Ten (10) samples were collected and their specific gravity values were determined using the pyncometre. Their specific gravity values range from 2.597 to 2.654. Its low percentage measured from the percentage pass indicates that more energy is needed to dislodge or disassemble the rock particle. The energy required to do this is called the comminution energy as compared to the specific gravities of different types of soil / rock aggregates. The average specific gravity of the granites in Fobur falls within the range of the standard specific gravity of rocks. As a result, the granites in Fobur community can be for use as construction aggregates. From literature, granites are composed of quartz, orthoclase, hornblende and biotite. The mineral composition of granites in Fobur gives them a specific gravity that is more than 2.50. The research objective is to determine the suitability of Fobur Biotite Granite as an aggregate construction material in Jos, North Central Nigeria.","PeriodicalId":15924,"journal":{"name":"Journal of Imaging Science and Technology","volume":"9 2B","pages":"335-340"},"PeriodicalIF":0.0,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.journal-academia.com/Ojs/index.php/bimajst/article/download/1304/1233","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147903385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating dynamic tire pressure variations on uneven road surfaces 在不平整路面上评估动态轮胎压力变化

4区计算机科学

Journal of Imaging Science and Technology Pub Date : 2025-06-25 DOI: 10.15625/2525-2518/19409

Quan Huynh van

引用次数: 0

Multimodal Machine Learning-Based Cancer Progression Prediction from Plain Radiographs and Clinical Data 基于x线平片和临床数据的多模态机器学习的癌症进展预测

4区计算机科学

Journal of Imaging Science and Technology Pub Date : 2025-03-20 DOI: 10.64290/bima.v9i1a.900

Hassan Umar, Ali Ahmad Aminu

{"title":"Multimodal Machine Learning-Based Cancer Progression Prediction from Plain Radiographs and Clinical Data","authors":"Hassan Umar, Ali Ahmad Aminu","doi":"10.64290/bima.v9i1a.900","DOIUrl":"https://doi.org/10.64290/bima.v9i1a.900","url":null,"abstract":"This research investigates the use of a multimodal machine learning model to predict cancer progression by integrating radiographs and clinical data. The study addresses the limitations of unimodal approaches, which often overlook the synergistic potential of combining diverse data types. By leveraging deep learning techniques for image analysis and interpretable models for clinical data, the proposed framework enhances prediction accuracy and model interpretability. The multimodal model achieved a high training accuracy of 98.01% and a testing accuracy of 94%, significantly outperforming unimodal models like SVM and CNN. Precision (94.2%) and recall (94%) highlighted the model's ability to accurately identify true positive cases, while the AUC-ROC of 98% underscored its robust diagnostic capability. Comprehensive evaluation demonstrated that the multimodal model effectively integrates complementary data, improving predictive performance and supporting personalised treatment planning. The research contributes to advancing cancer diagnosis and prognosis, offering a promising tool for clinical decision-making.","PeriodicalId":15924,"journal":{"name":"Journal of Imaging Science and Technology","volume":"9 1A","pages":"212-232"},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://journal-academia.com/Ojs/index.php/bimajst/article/download/900/809","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147891523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improvement of Gas Barrier Properties and Antioxidant Activity of PVA/Hemicellulose Active Packaging Films Reinforced by Tea Polyphenols 茶多酚增强PVA/半纤维素活性包装膜阻气性能及抗氧化性能的改善

4区计算机科学

Journal of Imaging Science and Technology Pub Date : 2025-02-18 DOI: 10.2352/j.imagingsci.technol.2025.69.3.030407

Yonghang Niu, Yining Wang, Haonan Chen, Du Jian, Haisong Wang, Yanna Lv

{"title":"Improvement of Gas Barrier Properties and Antioxidant Activity of PVA/Hemicellulose Active Packaging Films Reinforced by Tea Polyphenols","authors":"Yonghang Niu, Yining Wang, Haonan Chen, Du Jian, Haisong Wang, Yanna Lv","doi":"10.2352/j.imagingsci.technol.2025.69.3.030407","DOIUrl":"https://doi.org/10.2352/j.imagingsci.technol.2025.69.3.030407","url":null,"abstract":"The preparation of active food packaging materials with both high gas barrier and antioxidant properties remains a great challenge. Hemicellulose is an abundant raw material with excellent oxygen barrier performance and biodegradability, and tea polyphenols (TPs) are natural antioxidants with the function of reducing water sensitivity of polysaccharide-based films. Herein, a synergistic strategy is reported for the preparation of active-controlled food packaging material by incorporating TP into the poly(vinyl alcohol) hemicellulose (PVA/HC) matrix. The obtained film with 5 wt% addition of TP exhibited the highest tensile strength of 41.09 MPa, which was increased by 84% than that of the PVA/HC film. Meanwhile, water vapor permeability was decreased by 25% to 7.39 × 10−12 g⋅cm/(cm2⋅s⋅Pa) compared to a PVA/HC film. Moreover, the addition of TP improved the thermal stability of the (PVA/HC/TP)n film. The outstanding packaging performances were attributed to the robust hydrogen bonding between TP and the PVA/HC matrix as demonstrated by Fourier transform infrared spectroscopy. The DPPH free radical scavenging of (PVA/HC/TP)15 films reached 87.99%, and the film also exhibited enhanced inhibition efficiency against the microorganism E. coli. Compared with the polyethylene plastic wrap, the film showed excellent food packaging applicability by preventing air oxidation of fresh-cut potato. This study sheds light on a design strategy for active packaging films using a natural substance and easily available biomass.","PeriodicalId":15924,"journal":{"name":"Journal of Imaging Science and Technology","volume":"69 3","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147877465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Paper with Superhydrophobic and Antibacterial Properties Prepared from Silver Nanoparticles and Carnauba Wax 纳米银与巴西棕榈蜡制备具有超疏水性和抗菌性能的纸张

4区计算机科学

Journal of Imaging Science and Technology Pub Date : 2024-11-20 DOI: 10.2352/j.imagingsci.technol.2025.69.3.030402

Fuqiang Chu, Yuhang Fu, Jilei Chao, Chuang Liu

{"title":"Paper with Superhydrophobic and Antibacterial Properties Prepared from Silver Nanoparticles and Carnauba Wax","authors":"Fuqiang Chu, Yuhang Fu, Jilei Chao, Chuang Liu","doi":"10.2352/j.imagingsci.technol.2025.69.3.030402","DOIUrl":"https://doi.org/10.2352/j.imagingsci.technol.2025.69.3.030402","url":null,"abstract":"The problem of bacterial adhesion, bacterial transmission, and bacterial infection in food packaging has serious implications for the global economy and human health. Therefore, in recent decades, research specialists have worked to develop antibacterial materials which inhibit the growth of bacteria or achieve effective sterilization. To address the issues attributed to bacteria, this study created a superhydrophobic and antibacterial paper by adsorbing a layer of tea polyphenols and the FeCl3 reaction product on the surface of kraft paper, immersing it in AgNO3 solution for the in situ reduction of nanosilver, repeating the process four times, and then treating the surface with palm wax to reduce surface energy. The paper created showed excellent antibacterial properties (S. aureus inhibition rate of 99.963%, E. coli inhibition rate of 99.997%), superhydrophobicity (contact angle of water >155∘, sliding angle <5∘), stability, moisture-resistant performance, and reusability. This superhydrophobic antibacterial paper is extremely suitable for application in food packaging.","PeriodicalId":15924,"journal":{"name":"Journal of Imaging Science and Technology","volume":"0 0","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147887332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Method and Performance Study of Preparing Electrochromic Devices by Screen Printing Technology 丝网印刷技术制备电致变色器件的方法及性能研究

4区计算机科学

Journal of Imaging Science and Technology Pub Date : 2024-11-19 DOI: 10.2352/j.imagingsci.technol.2025.69.3.030408

Taolin Zhang, Zhicheng Sun, Ting Wang, Rui Ma, Siying Guan, Ruping Liu

{"title":"Method and Performance Study of Preparing Electrochromic Devices by Screen Printing Technology","authors":"Taolin Zhang, Zhicheng Sun, Ting Wang, Rui Ma, Siying Guan, Ruping Liu","doi":"10.2352/j.imagingsci.technol.2025.69.3.030408","DOIUrl":"https://doi.org/10.2352/j.imagingsci.technol.2025.69.3.030408","url":null,"abstract":"Electrochromic devices possess a sandwich-like structure and can change their color by changing their optical properties such as absorbance and transmittance through the application of voltage. It is currently a hotspot in the field of electrochemical display research and has significant applications in wearable electronics, response sensors, and flexible displays. This study uses tungsten trioxide (WO3) as the cathode color-changing material, zinc foil as anode, and a water-based ink prepared by mixing nano-WO3, solvent, and polyvinylpyrrolidone (PVP) as the thickener in a predetermined ratio to meet the viscosity, surface tension, and particle size requirements of screen printing. The WO3 ink is then transferred onto a fluorine-doped tin oxide (FTO)-coated conductive glass through screen printing, and after sintering at 500∘C, the color-changing layer is encapsulated with VHB tape to obtain an electrochromic device with two electrodes. The properties of the ink at different PVP addition amounts, the morphology of the prepared films, and the performance of the devices were characterized by laser confocal microscope, scanning electron microscope (SEM), viscosity rheometer, surface tension and contact angle tester, fiber spectrometer, and an electrochemical workstation. The results showed that when isopropanol and deionized water were used as solvents, and 8 wt.% PVP as the thickener; the electrochromic device made after sintering had good transparency and could achieve an optical modulation rate of 55.9% within 36 s. This work can significantly impact the industrial application of large-area, low-cost intelligent windows using screen printing technology.","PeriodicalId":15924,"journal":{"name":"Journal of Imaging Science and Technology","volume":"0 0","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147893304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tetraphenylethene-Doped Photocurable Resin for Free-Radical-Promoted Cationic Photopolymerization 自由基促进阳离子光聚合的掺杂四苯乙烯光固化树脂

4区计算机科学

Journal of Imaging Science and Technology Pub Date : 2024-11-11 DOI: 10.2352/j.imagingsci.technol.2025.69.3.030403

Hui Wang, Chang Xu, Xinyuan Wang, Beiqing Huang

引用次数: 0

Effect of graphene on properties of acrylic emulsion intumescent fire retardant coating 石墨烯对丙烯酸乳液膨胀型防火涂料性能的影响

4区计算机科学

Journal of Imaging Science and Technology Pub Date : 2024-04-19 DOI: 10.15625/2525-2518/16894

Mạc Van Phuc, Dao Phi Hung, Nguyen Anh Hiep, Nguyen Thien Vuong, Trinh Van Thanh

{"title":"Effect of graphene on properties of acrylic emulsion intumescent fire retardant coating","authors":"Mạc Van Phuc, Dao Phi Hung, Nguyen Anh Hiep, Nguyen Thien Vuong, Trinh Van Thanh","doi":"10.15625/2525-2518/16894","DOIUrl":"https://doi.org/10.15625/2525-2518/16894","url":null,"abstract":"Nowadays, intumescent paint is one of the most popular fireproof paint products and is widely used in buildings. They can be applied to steel, wood, concrete, etc. This study aimed to enhance the properties of intumescent coating by graphene addition. The effect of graphene (GR) content on fire resistance, thermal and mechanical properties of water-based intumescent coatings were studied. Intumescent coating formulations include acrylic emulsion binder (R4152), flame retardant additives (Ammonium polyphosphate (APP) - acid source, pentaerythritol (PER) - carbon source, melamine (MEL) - foaming source), fire retardant fillers (TiO2, Al(OH)3) were prepared by mixing different graphene content (0.5, 1, 1.5 and 2 wt.% GR). The investigated coating properties were examined by fire protection test, furnace test, static water immersion test, scanning electron microscopy (SEM), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and mechanical properties (adhesion, pendulum hardness). The results showed that the GR could effectively enhance the fire resistance performance (from 13.6 % to 23.4 %), thermal stability (from 2.9 % to 5.2 %), water resistance (from 5.0 % to 11.9 %), and mechanical properties (from 5 % to 12 %) of the coating.","PeriodicalId":15924,"journal":{"name":"Journal of Imaging Science and Technology","volume":"62 2","pages":"267-278"},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://vjs.ac.vn/index.php/jst/article/download/16894/2543255426","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147915985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1