Processes最新文献_第7页

Preparation, Performance Evaluation and Mechanisms of a Diatomite-Modified Starch-Based Fluid Loss Agent 硅藻土改性淀粉基失水剂的制备、性能评价及机理研究

4区工程技术

Processes Pub Date : 2025-07-31 DOI: 10.3390/pr13082427

Guowei Zhou, Xin Zhang, Weijun Yan, Zhengsong Qiu

{"title":"Preparation, Performance Evaluation and Mechanisms of a Diatomite-Modified Starch-Based Fluid Loss Agent","authors":"Guowei Zhou, Xin Zhang, Weijun Yan, Zhengsong Qiu","doi":"10.3390/pr13082427","DOIUrl":"https://doi.org/10.3390/pr13082427","url":null,"abstract":"Natural polymer materials are increasingly utilized in drilling fluid additives. Starch has come to be applied extensively due to its low cost and favorable fluid loss reduction properties. However, its poor temperature resistance and high viscosity limit its application in high-temperature wells. This study innovatively introduces for the first time diatomite as an inorganic material in the modification process of starch-based fluid loss additives. Through synergistic modification with acrylamide and acrylic acid, we successfully resolved the longstanding challenge of balancing temperature resistance with viscosity control in existing modification methods. The newly developed fluid loss additive demonstrates remarkable performance: It remains effective at 160 °C when used independently. When added to a 4% sodium bentonite base mud, it achieves an 80% fluid loss reduction rate—significantly higher than the 18.95% observed in conventional starch-based products. The resultant filter cake exhibits thin and compact characteristics. Moreover, this additive shows superior contamination resistance, tolerating 30% NaCl and 0.6% calcium contamination, outperforming other starch-based treatments. With starch content exceeding 75%, the product not only demonstrates enhanced performance but also achieves significant cost reduction compared to conventional starch products (typically containing < 50% starch content).","PeriodicalId":20597,"journal":{"name":"Processes","volume":"13 8","pages":"2427-2427"},"PeriodicalIF":0.0,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2227-9717/13/8/2427/pdf?version=1753965251","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147885702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Development and Characterization of Modified Biomass Carbon Microsphere Plugging Agent for Drilling Fluid Reservoir Protection 改性生物质碳微球钻井液储层封堵剂的研制与表征

4区工程技术

Processes Pub Date : 2025-07-28 DOI: 10.3390/pr13082389

Miao Dong

{"title":"Development and Characterization of Modified Biomass Carbon Microsphere Plugging Agent for Drilling Fluid Reservoir Protection","authors":"Miao Dong","doi":"10.3390/pr13082389","DOIUrl":"https://doi.org/10.3390/pr13082389","url":null,"abstract":"Using common corn stalks as raw materials, a functional dense-structured carbon microsphere with good elastic deformation and certain rigid support was modified from biomass through a step-by-step hydrothermal method. The composition, thermal stability, fluid-loss reduction performance, and reservoir protection performance of the modified carbon microspheres were studied. Research indicates that after hydrothermal treatment, under the multi-level structural action of a small amount of proteins in corn stalks, the naturally occurring cellulose, polysaccharide organic compounds, and part of the ash in the stalks are adsorbed and encapsulated within the long-chain network structure formed by proteins and cellulose. By attaching silicate nanoparticles with certain rigidity from the ash to the relatively stable chair-type structure in cellulose, functional dense-structured carbon microspheres were ultimately prepared. These carbon microspheres could still effectively reduce fluid loss at 200 °C. The permeability recovery value of the cores treated with modified biomass carbon microspheres during flowback reached as high as 88%, which was much higher than that of the biomass itself. With the dense network-like chain structure supplemented by small-molecule aldehydes and silicate ash, the subsequent invasion of drilling fluid was successfully prevented, and a good sealing effect was maintained even under high-temperature and high-pressure conditions. Moreover, since this functional dense-structured carbon microsphere achieved sealing through a physical mechanism, it did not cause damage to the formation, showing a promising application prospect.","PeriodicalId":20597,"journal":{"name":"Processes","volume":"13 8","pages":"2389-2389"},"PeriodicalIF":0.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2227-9717/13/8/2389/pdf?version=1753675298","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147919081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Novel Fluorescent Probe AP for Highly Selective and Sensitive Detection of Hg2+ and Its Application in Environmental Monitoring 高选择性、高灵敏度检测Hg2+的新型荧光探针AP及其在环境监测中的应用

4区工程技术

Processes Pub Date : 2025-07-19 DOI: 10.3390/pr13072306

Zhicheng Yang, Chaojie Lei, Qian Wang, Yonghui He, Senlin Tian

引用次数: 1

Polyunsaturated Fatty Acid-Rich Waste Vegetable Oil-Derived Bio-Based Zwitterionic Surfactants with High Interfacial Activity for Enhanced Oil Recovery 富含多不饱和脂肪酸的废植物油衍生的高界面活性生物基两性离子表面活性剂，用于提高采收率

4区工程技术

Processes Pub Date : 2025-07-07 DOI: 10.3390/pr13072159

Xuemei Zhang, Shi‐Zhong Yang, Homely Isaya Mtui, Bo‐Zhong Mu

{"title":"Polyunsaturated Fatty Acid-Rich Waste Vegetable Oil-Derived Bio-Based Zwitterionic Surfactants with High Interfacial Activity for Enhanced Oil Recovery","authors":"Xuemei Zhang, Shi‐Zhong Yang, Homely Isaya Mtui, Bo‐Zhong Mu","doi":"10.3390/pr13072159","DOIUrl":"https://doi.org/10.3390/pr13072159","url":null,"abstract":"Recently, vegetable oil-derived monounsaturated fatty acids (MUFAs) have predominantly been utilized in producing bio-based surfactants, resulting in low bioresource utilization and high separation costs. Although polyunsaturated fatty acids (PUFAs) are abundant and often co-exist with MUFAs, bio-based surfactants synthesized from PUFA-rich feedstocks have been less researched due to concerns regarding their interfacial performance. In this study, a novel series of PUFA-based zwitterionic surfactants with strong interfacial activity was synthesized from waste vegetable oils via an eco-friendly three-step process, optimized through an orthogonal experimental design. The structures and conversion rates of the surfactants were confirmed using GC-MS, LC-MS, and ESI-MS. At 0.5 g/L and 3.0 g/L (typical concentrations often used in most oil fields), the bio-based surfactants derived from waste soybean oil (PUFA-to-MUFA ratio ≈ 2.11, C18:2, and C18:1 in large contents) could reduce the interfacial tension between Daqing crude oil and simulated formation groundwater to an ultra-low level of ~10−3 mN/m. These results confirm our hypothesis that bio-based zwitterionic surfactants derived from PUFA-rich feedstocks possess excellent interfacial activity, providing a potential sustainable option to be considered for chemically enhanced oil recovery.","PeriodicalId":20597,"journal":{"name":"Processes","volume":"13 7","pages":"2159-2159"},"PeriodicalIF":0.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2227-9717/13/7/2159/pdf?version=1751885478","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147900409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimized High-Pressure Ultrasonic-Microwave-Assisted Extraction of Gingerol from Ginger: Process Design and Performance Evaluation 高压超声-微波辅助提取姜中姜辣素的工艺设计及性能评价

4区工程技术

Processes Pub Date : 2025-07-06 DOI: 10.3390/pr13072149

Yang Zhang, Siqian Yang, Wensi Li, Xiao-Yan Li, Xing Lai, Xiangdong Li, Wuwan Xiong, Jie Zhang

{"title":"Optimized High-Pressure Ultrasonic-Microwave-Assisted Extraction of Gingerol from Ginger: Process Design and Performance Evaluation","authors":"Yang Zhang, Siqian Yang, Wensi Li, Xiao-Yan Li, Xing Lai, Xiangdong Li, Wuwan Xiong, Jie Zhang","doi":"10.3390/pr13072149","DOIUrl":"https://doi.org/10.3390/pr13072149","url":null,"abstract":"This study employed high-pressure ultrasonic-microwave-assisted extraction (HP-UMAE) to extract gingerols from ginger. The extraction yield and total polyphenol content of the extracts were determined. Their antioxidant activity was assessed by DPPH and ABTS radical scavenging assays, and compared with extracts obtained by leaching extraction, reflux extraction, ultrasonic-assisted extraction (UAE), microwave-assisted extraction (MAE), and ultrasonic-microwave-assisted extraction (UMAE). The results demonstrated that HP-UMAE achieved the highest extraction yield and the strongest ABTS radical scavenging activity among the evaluated methods. Furthermore, HP-UMAE extracts exhibited the highest concentrations of key gingerol constituents: 6-gingerol (14.29 mg/L), 8-gingerol (0.38 mg/L), 10-gingerol (1.95 mg/L), and 6-shogaol (4.32 mg/L). This enhanced efficacy is attributed to the synergistic combination of ultrasonic cavitation and microwave-induced thermal effects under elevated pressure. This synergy creates conditions promoting cellular wall disruption, facilitating the release of intracellular components, while concurrently enhancing solvent penetration and gingerol solubility. Scanning electron microscopy (SEM) analysis confirmed the significant structural damage inflicted on ginger cell walls following HP-UMAE treatment. The process parameters for HP-UMAE were optimized using single-factor experiments. The optimal extraction conditions were determined as follows: microwave power 800 W, ultrasonic power 1000 W, liquid-to-solid ratio 55:1, and temperature 100 °C (corresponding pressure 2 MPa). Under these optimized parameters, the extraction yield and ABTS radical scavenging rate reached their peak performance, yielding values of 4.52% and 43.23%, respectively.","PeriodicalId":20597,"journal":{"name":"Processes","volume":"13 7","pages":"2149-2149"},"PeriodicalIF":0.0,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2227-9717/13/7/2149/pdf?version=1751795872","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147334005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Metal–Organic Framework-Based Membranes with High Selectivity for Non-Aqueous Redox Flow Battery 非水氧化还原液流电池高选择性金属-有机骨架膜

4区工程技术

Processes Pub Date : 2025-07-04 DOI: 10.3390/pr13072127

Lifang Zhu, Donghan Xu, Yongdan Li, Cuijuan Zhang

引用次数: 0

Investigation of the Distribution of 5-Hydroxymethylfurfural in Black Garlic from Different Regions and Its Correlation with Key Process-Related Biochemical Components 不同产地黑蒜中5-羟甲基糠醛的分布及其与关键工艺生化成分的相关性研究

4区工程技术

Processes Pub Date : 2025-07-04 DOI: 10.3390/pr13072133

Heng Yuan, Simin Zhang, Yue-E Sun, Hao Gong, Shuai Wang, Jun Wang

{"title":"Investigation of the Distribution of 5-Hydroxymethylfurfural in Black Garlic from Different Regions and Its Correlation with Key Process-Related Biochemical Components","authors":"Heng Yuan, Simin Zhang, Yue-E Sun, Hao Gong, Shuai Wang, Jun Wang","doi":"10.3390/pr13072133","DOIUrl":"https://doi.org/10.3390/pr13072133","url":null,"abstract":"Black garlic is a thermally processed product derived from fresh garlic through controlled high-temperature and -humidity conditions. During this process, the formation of 5-hydroxymethylfurfural (5-HMF), a potentially harmful byproduct, is a major quality and safety concern in food processing. This study systematically investigated the distributions of 5-HMF and key process-related biochemical components in black garlic samples from three major production regions in China—Jiangsu, Yunnan, and Shandong. Additionally, correlations between 5-HMF and biochemical components—reducing sugars, amino acids, and organic acids—were analyzed to inform process optimization strategies. Results showed significant regional variation in 5-HMF content, with Jiangsu black garlic exhibiting the highest levels, followed by Yunnan and Shandong (p < 0.05). Partial least squares regression analysis (PLSR) indicated that the key biochemical factors regulating 5-HMF accumulation are primarily organic acids. Among them, citric acid was identified as the most important negative regulator (VIP = 3.11). Although acetic acid (VIP = 1.38) and malic acid (VIP = 1.03) showed positive correlations with 5-HMF, aspartic acid (VIP = 0.41) and fructose (VIP = 0.43) exhibited a weak positive correlation, and arginine (VIP = 0.89) showed weak negative correlations, their effects were far less significant than that of citric acid. Based on these findings, we propose a potential strategy for reducing 5-HMF content in black garlic—selecting raw material cultivars with higher endogenous citric acid levels or exploring the exogenous addition and regulation of citric acid during processing. This study provides a theoretical foundation for understanding the accumulation mechanism of 5-HMF in black garlic and suggests new potential regulatory directions for controlling its content.","PeriodicalId":20597,"journal":{"name":"Processes","volume":"13 7","pages":"2133-2133"},"PeriodicalIF":0.0,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2227-9717/13/7/2133/pdf?version=1751636839","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Classification of Acoustic Characteristics of Bubble Flow and Influencing Factors of Critical Gas Flow Velocity 气泡流声学特性分类及临界气体流速影响因素

4区工程技术

Processes Pub Date : 2025-06-28 DOI: 10.3390/pr13072055

Wenbin Zhou, Kunlong Yi, Guangyan Wang, Honghai Wang

{"title":"Classification of Acoustic Characteristics of Bubble Flow and Influencing Factors of Critical Gas Flow Velocity","authors":"Wenbin Zhou, Kunlong Yi, Guangyan Wang, Honghai Wang","doi":"10.3390/pr13072055","DOIUrl":"https://doi.org/10.3390/pr13072055","url":null,"abstract":"To address the unclear coupling mechanism between bubble detachment behavior and acoustic characteristics in gas–liquid two-phase flow, this paper systematically studied bubble behavior and acoustic characteristics under different conditions by building a high-precision synchronous measurement system, combining acoustic signal analysis and bubble dynamics observation. The influence mechanism of liquid surface tension, dynamic viscosity, and orifice diameter on the critical gas flow velocity of bubble flow transition was analyzed, and a flow pattern classification criterion system was established. The experimental results showed that the bubble flow state could be divided into three states according to the characteristics of the acoustic signals: discrete bubble flow, single-chain bubble flow, and dual-stage chain bubble flow. The liquid surface tension and dynamic viscosity had no significant effect on the critical gas flow velocity of the transition from discrete bubble flow to single-chain bubble flow, but significantly increased the critical gas flow velocity of the transition from single-chain bubble flow to dual-stage chain bubble flow. The increase in the orifice diameter reduced the critical gas flow velocity of the two types of flow transition. In addition, the Weber number (We) and Galileo number (Ga) were introduced to construct a quantitative classification system of flow pattern, which provided theoretical support for the optimization of industrial gas–liquid two-phase flow.","PeriodicalId":20597,"journal":{"name":"Processes","volume":"13 7","pages":"2055-2055"},"PeriodicalIF":0.0,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2227-9717/13/7/2055/pdf?version=1751102877","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147885628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient Preparation and Bioactivity Evaluation of Aglycone Soy Isoflavones via a Multi-Enzyme Synergistic Catalysis Strategy 多酶协同催化制备大豆苷元异黄酮及其生物活性评价

4区工程技术

Processes Pub Date : 2025-06-10 DOI: 10.3390/pr13061831

Yating Zhao, Yanhong Fu, Peng Du, Nan Li, Yaru Lv, Lizhen Hao, Wenlong Liu, Jing Xiao

{"title":"Efficient Preparation and Bioactivity Evaluation of Aglycone Soy Isoflavones via a Multi-Enzyme Synergistic Catalysis Strategy","authors":"Yating Zhao, Yanhong Fu, Peng Du, Nan Li, Yaru Lv, Lizhen Hao, Wenlong Liu, Jing Xiao","doi":"10.3390/pr13061831","DOIUrl":"https://doi.org/10.3390/pr13061831","url":null,"abstract":"Aglycone-type soy isoflavones, recognized for their bioactive phytoestrogen properties, face industrial limitations due to their low natural abundance and inefficient conversion. This study optimized a multi-enzyme synergistic catalysis system using soybean sprout powder, achieving high conversion rates and purity through response surface methodology. The optimal enzyme system comprised β-glucosidase (25 U/mL), cellulase (200 U/mL), hemicellulase (400 U/mL), and β-galactosidase (900 U/mL) at pH 5.0, 50 °C, and 3.2 h. This system yielded an aglycone conversion rate of 92% and glycoside hydrolysis rate of 97%, outperforming single-enzyme approaches. Upon post-purification with AB-8 macroporous resin, the product reached a purity of 58.1 ± 0.54% and exhibited strong antioxidant activity, with DPPH and ABTS radical scavenging rates of 81.01 ± 0.78% and 71.37 ± 1.01%, respectively. In a zebrafish central nervous system injury model induced by mycophenolate mofetil, the 500 μg/mL sample group significantly reduced neural apoptosis fluorescence intensity compared to controls (p < 0.05), achieving a neuroprotective rate of 76.58%, which was similar to the effect of L-reducing glutathione. This study offers an efficient, cost-effective enzymatic strategy for producing aglycone soy isoflavones, highlighting their potential in functional foods and neuroprotective applications.","PeriodicalId":20597,"journal":{"name":"Processes","volume":"13 6","pages":"1831-1831"},"PeriodicalIF":0.0,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2227-9717/13/6/1831/pdf?version=1749542968","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Photolytic Formation of Polybrominated Dibenzofurans (PBDFs) in Various Simulated Soil-Washing Solutions Containing Polybrominated Diphenyl Ethers (PBDEs) 多溴二苯醚（PBDEs）在不同模拟土壤洗涤溶液中的光解作用

4区工程技术

Processes Pub Date : 2025-06-06 DOI: 10.3390/pr13061806

Chenyu Zhang, Xiaodong Du, Shaoshan Zeng, Jinghong Wen, Jiafa Luo, Shubin Wu, Qian Zhang, Xueqin Tao, Guining Lu

{"title":"Photolytic Formation of Polybrominated Dibenzofurans (PBDFs) in Various Simulated Soil-Washing Solutions Containing Polybrominated Diphenyl Ethers (PBDEs)","authors":"Chenyu Zhang, Xiaodong Du, Shaoshan Zeng, Jinghong Wen, Jiafa Luo, Shubin Wu, Qian Zhang, Xueqin Tao, Guining Lu","doi":"10.3390/pr13061806","DOIUrl":"https://doi.org/10.3390/pr13061806","url":null,"abstract":"Soil washing is an efficient method to remove polybrominated diphenyl ethers (PBDEs) from contaminated soils. The obtained solutions from soil-washing still contain PBDEs, requiring further treatment before disposal or reuse. Although photolysis is effective for PBDE degradation in solutions, the concurrent formation of toxic polybrominated dibenzofurans (PBDFs) may limit its practical application. In this study, 2,8-dibromodibenzofurans (2,8-BDF) formation rate and mechanisms during 2,4,4′-tribromodiphenyl ether (BDE-28) photolysis in various simulated soil-washing solutions was investigated. Results revealed significant effects of solubilizers on 2,8-BDF formation. The nonionic surfactants polysorbate (TW80), polyoxyethylene octylphenyl ether (TX series), and the cationic surfactant cetyltrimethylammonium bromide (CTAB) resulted in low 2,8-BDF formation rate (1–5%), while the β-cyclodextrin led to the highest 2,8-BDF formation rate (about 28%). The nonionic surfactants polyoxyethylene dodecyl ethers (Brij series), and the anionic surfactants sodium dodecylbenzene sulfonate (SDBS) and sodium dodecyl sulfate (SDS), also showed a high level of 2,8-BDF formation rate (7–17%). Solubilizer structure and its interaction with BDE-28 determined the 2,8-BDF formation. The role of the micelle microenvironment on 2,8-BDF formation was verified via an experiment and molecular dynamics simulation. The organic region of micelle exhibited high hydrogen donation ability, which inhibited 2,8-BDF formation. The results indicated distinct risks of PBDE photolysis in various soil-washing solutions, providing an important reference for solubilizer selection and the application of photolysis on the treatment of soil-washing solutions containing PBDEs.","PeriodicalId":20597,"journal":{"name":"Processes","volume":"13 6","pages":"1806-1806"},"PeriodicalIF":0.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.mdpi.com/2227-9717/13/6/1806/pdf?version=1749211963","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0