PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)最新文献_第4页

Effect of solvent to matrix weight ratio and stearic acid treatment on the mechanical properties of Poly (methyl methacrylate)/ palm kernel shell composites 溶剂与基质重量比及硬脂酸处理对聚甲基丙烯酸甲酯/棕榈仁壳复合材料力学性能的影响

PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020) Pub Date : 2021-07-21 DOI: 10.1063/5.0051936

B. Y. Lim, C. Voon, S. F. Lye, P. Teh

{"title":"Effect of solvent to matrix weight ratio and stearic acid treatment on the mechanical properties of Poly (methyl methacrylate)/ palm kernel shell composites","authors":"B. Y. Lim, C. Voon, S. F. Lye, P. Teh","doi":"10.1063/5.0051936","DOIUrl":"https://doi.org/10.1063/5.0051936","url":null,"abstract":"In this study, poly (methyl methacrylate)/palm kernel shell (PMMA/PKS) composites were prepared by solution casting. The effect of solvent to matrix (S/M) weight ratio and stearic acid (SA) treatment on PMMA/PKS composites were studied. PMMA pellets were dissolved and PKS powders were dispersed into acetone, separately. PMMA solution and PKS suspension were then mixed in ultrasonic bath. The mixture was then poured into a glass petri dish to evaporate acetone at room temperature and finally PMMA/PKS composite thin film was obtained. PMMA/PKS composites were characterized by using SEM and were subjected to tensile test. It was found that tensile strength, modulus of elasticity of composite increased but elongation at break decreased with the increasing S/M ratio and with SA treatment. The improvement of the mechanical properties was due to the improved interfacial bonding following the SA treatment and the formation of crystallized PMMA domain in the composite with the increasing S/M ratio. SEM images revealed even fracture surfaces as S/M increased and with the application of SA treatment that indicate better matrix-filler adhesion. It can be concluded that S/M increment and SA treatment improved mechanical properties of PMMA/PKS composite.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125752603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Formation of citizen-centric public service satisfaction model during pandemic crisis in Malaysia: An ideology 马来西亚流行病危机中以公民为中心的公共服务满意度模式的形成:一种意识形态

PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020) Pub Date : 2021-07-21 DOI: 10.1063/5.0053808

S. D. M. Wahid, S. Amin, A. J. M. Ali, A. Abdullah

引用次数: 0

The effectiveness of television in creating awareness towards movement control order (MCO) during Covid-19 2019冠状病毒病期间电视宣传对运动控制秩序(MCO)的有效性

PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020) Pub Date : 2021-07-21 DOI: 10.1063/5.0052008

A. R. Ridzuan, A. Luthfia, R. S. Mohideen, S. N. S. Allam, N. A. K. Zamri, A. Zulkarnain, S. Ismail, M. H. Abdullah, R. A. A. W. Puspokusumo

{"title":"The effectiveness of television in creating awareness towards movement control order (MCO) during Covid-19","authors":"A. R. Ridzuan, A. Luthfia, R. S. Mohideen, S. N. S. Allam, N. A. K. Zamri, A. Zulkarnain, S. Ismail, M. H. Abdullah, R. A. A. W. Puspokusumo","doi":"10.1063/5.0052008","DOIUrl":"https://doi.org/10.1063/5.0052008","url":null,"abstract":"In March 2020, the government had announced for the Movement Control Order due to the outbreak of Covid-19 in Malaysia. COVID-19 is an infectious disease caused by a newly discovered coronavirus. People that infected with COVID-19 will experience mild to moderate respiratory illness and recover without requiring special treatment. As the covid-19 had affected over millions of people across the world, the media have been working overtime in make sure the communities are updated with the news regarding Movement Control Order information to the public. The study aims to identify the effectiveness of media in creating awareness towards the understanding of Movement Control Order (MCO) during Covid-19. The study involves 440 respondents from different backgrounds across Malaysia. The data are collected through Statistical Package of Social Science (SPSS) Version 23. Findings from the SPSS indicated that television has significantly impact on promoting Movement Control Order awareness.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128573375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Suitable habitat and environmental conditions for successful edible bird nest swiftlet houses 适合的栖息地和环境条件，成功的食用燕窝燕屋

PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020) Pub Date : 2021-07-21 DOI: 10.1063/5.0054174

M. Yaacob, W. I. W. Khairy, A. Munirah, A. Nabilah, H. Zulhazman

{"title":"Suitable habitat and environmental conditions for successful edible bird nest swiftlet houses","authors":"M. Yaacob, W. I. W. Khairy, A. Munirah, A. Nabilah, H. Zulhazman","doi":"10.1063/5.0054174","DOIUrl":"https://doi.org/10.1063/5.0054174","url":null,"abstract":"Many entrepreneurs are very interested to start Edible Bird Nest (EBN) production. However, many of them lack knowledge in suitable habitat and environmental conditions for EBN swiftlets. They suffered losses because they are not concerned about providing the management of the suitable habitat and environmental conditions before building their EBN swiftlet house. This study aimed to identify and establish the list of habitat and environmental conditions for successful of edible bird nest swiftlet ranching. This study comprised of interview questions and field study. Questionnaires were distributed 100 players in EBN industry in Terengganu. For the field study, air and surface temperatures, relative humidity, light intensity, and sound level were recorded in nine EBN swiftlet houses in three different areas, the forested, the coastal and the town areas. From the questionnaires, we found that the most popular area (67%) to build EBN swiftlet houses was the forested area. This was followed by, the coastal area (26.7%) and town area (6.7%). Based on field study results, forested areas were the best and most productive to build EBN swiftlet house. The mean EBN and individual swiftlet population from the different areas were as follows: 78 nests and 263 individuals in forested, 51 nests and 133 individuals in the coastal and 25 nests and 65 individuals in the town area. From the environmental parameters collected it was shown that houses built in the forested area had the most suitable range for swiftlet adaptation. Air and surface temperatures were 31°C, relative humidity was 82%, light intensity 0.16LUX, sound level 50dB (internal) and 65dB (external). The results showed that EBN production was significantly higher in swiftlet houses with suitable habitat and environmental conditions. In the management of swiftlet houses, only suitable habitat and environmental conditions can be assured to be productive and profitable ranching venture swiflet.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127082001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Effect of processing conditions on the fracture behavior of Al-5Zn-1.5Mg-1.0Mn-0.35Cu alloy fabricated from recycled beverage cans (RBCs) for bumper beam applications 工艺条件对再生饮料罐Al-5Zn-1.5Mg-1.0Mn-0.35Cu合金保险杠梁断裂行为的影响

PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020) Pub Date : 2021-07-21 DOI: 10.1063/5.0051711

A. Kazeem, M. Rady, N. Badarulzaman, W. F. W. Ali, M. A. Suhaimi, S. S. Jikan, S. Rahim, S. Sharif

{"title":"Effect of processing conditions on the fracture behavior of Al-5Zn-1.5Mg-1.0Mn-0.35Cu alloy fabricated from recycled beverage cans (RBCs) for bumper beam applications","authors":"A. Kazeem, M. Rady, N. Badarulzaman, W. F. W. Ali, M. A. Suhaimi, S. S. Jikan, S. Rahim, S. Sharif","doi":"10.1063/5.0051711","DOIUrl":"https://doi.org/10.1063/5.0051711","url":null,"abstract":"The literature is a deficit of the effect of fractographic and microstructural analyses on the yield strength (δy) of experimental 7xxx alloy fabricated from Recycled Beverage Cans (RBCs). This paper aims at fabricating a novel Al-5Zn-1.5Mg-1Mn-0.35Cu alloy from RBCs and correlate between fractography, microstructures, chemical compositions, and δy with respect to heat treatment (HT) parameters. Both intergranular and intergranular fractures were found predominantly ductile with micro dimples. Prolonged ageing time increased the thickness of boundaries and precipitated free zones (PFZs). Micro-voids and flake-like patterns indicated the formation of secondary phases. Maximum δy of 129 MPa and elongation of 16.3 % were observed in an alloy annealed (o) at 413 °C, artificial aged (T6) at 145 °C, for 6 h. Thus, modifications of HT process has significantly influenced the δy and microstructure of the alloy fabricated from RBCs. Future studies should concentrate on investigating the effect of variations in the wt. % Zn on the mechanical properties.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129954073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance evaluation of nano-enhanced coconut oil as sustainable lubricant 纳米增强椰子油作为可持续润滑剂的性能评价

PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020) Pub Date : 2021-07-21 DOI: 10.1063/5.0051485

Ibrahim Ogu Sadiq, M. A. Suhaimi, S. Sharif, N. Yusof, K. Park, S. Rahim, N. Alias

{"title":"Performance evaluation of nano-enhanced coconut oil as sustainable lubricant","authors":"Ibrahim Ogu Sadiq, M. A. Suhaimi, S. Sharif, N. Yusof, K. Park, S. Rahim, N. Alias","doi":"10.1063/5.0051485","DOIUrl":"https://doi.org/10.1063/5.0051485","url":null,"abstract":"Lubricants are used to reduce friction between contacting surfaces, especially involving mechanical parts. There has been considerable effort to develop a lubricant that will aid sustainable process and efficient performance. Because of their environmental friendliness, biodegradability, less toxic, and good lubricity, vegetable oils are considered a better substitute for mineral oils. However, their thermal and oxidative stability of vegetable needs to be improved for efficient lubrication. This research is aimed at developing and performance evaluation of vegetable oil-based nanolubricants with maghemite nanoparticles at different volume concentrations for sustainable lubrication. Maghemite nanolubricants were prepared by dispersion of the maghemite (γFe2O3) nanoparticles into vegetable oil at a different level of inclusions (0.1, 0.2, and 0.3 vol.%). The result indicated an improvement in the thermophysical properties of the nanolubricants with increased concentration, while an increase in temperature decreases their enhancement. The kinematic viscosity of coconut oil is enhanced with an increase of volume fractions that enable them to form a protective thin film under higher temperature operation. At the temperature of 80 °C, an increase of 30.68% was observed in the viscosity of nanolubricant over the pure base oil. The highest thermal conductivity enhancement over the base fluid is 7.33%, corresponding to a ratio of 1.079 times improved performance at a concentration of 0.3 vol.% inclusion over the pure base oil. The tribological properties showed that the wear scar diameter and coefficient of friction decrease with an increase of concentration. Thus making the addition of maghemite nanaoparticles in biolubricants a promising nanolubricant for sustainable machining.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132373894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Learning style tendencies based on Fleming’s VARK learning style among TVET students 基于弗莱明VARK学习风格的TVET学生学习风格倾向

PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020) Pub Date : 2021-07-21 DOI: 10.1063/5.0053050

N. Razali, F. Ahmad, N. Hamzah, W. Hassan, S. M. Baharudin

引用次数: 0

Potential impacts in the conservation of old shophouse towards its heritage values 保育旧店屋对其文物价值的潜在影响

PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020) Pub Date : 2021-07-21 DOI: 10.1063/5.0053143

Farrah Atikah binti Saari, M. R. M. Nasir, Sahrudin Mohamed Som, A. Awang, Sudirman Kiffli, I. Marzuki

{"title":"Potential impacts in the conservation of old shophouse towards its heritage values","authors":"Farrah Atikah binti Saari, M. R. M. Nasir, Sahrudin Mohamed Som, A. Awang, Sudirman Kiffli, I. Marzuki","doi":"10.1063/5.0053143","DOIUrl":"https://doi.org/10.1063/5.0053143","url":null,"abstract":"Efforts in conserving the architectural inheritance of old shophouses are quite challenging due to the condition and age of the buildings nowdays. In Kota Bharu, there are many old shophouse structures and buildings that are left unattended even though the city is still recognized for its unique cultural values. The factors that led to the negligence of these old shophouses are due to the financial problem, lack of awareness in the importance of heritage conservation, decreasing rate in business prospect, no continuity in heritage ownership and business operation. This situation leads to failure in conserving these buildings where some of the old shophouses started to collapse. Thus, this study aims to identify the unique characteristics in the architectural designs and heritage of the old shophouses for the conservational purpose as well as acknowledging the significance of its heritage values. This is a qualitative research that employs structured observation and structured interview methods. The outcomes from the observation method found that the shophouse buildings in Kota Bharu still exhibit its unique design in architectural heritage and the modifications are still minimum. Meanwhile, the research outcomes from the interview method stated a higher percentage of respondents who agree on the significance and importance of the old shophouse’s architectural structure conservation effort. Therefore, the old shophouses have a high potential to be conserved due to their contribution to heritage values. As the outcome, this research could provide an opportunity to the authorized bodies to see its potential to be recognized as a gazetted city or heritage site as well as improving the Cultural Zone area, Kota Bharu.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131326139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Raised flooring; a traditional designed architectural element as “passive design” system in future building. Case study: Masjid Kampung Laut, Kelantan 活动地板;将传统设计的建筑元素作为“被动设计”系统应用于未来建筑。案例研究:吉兰丹甘榜劳清真寺

PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020) Pub Date : 2021-07-21 DOI: 10.1063/5.0051501

N. Amin, M. R. M. Nasir, I. L. H. Ibrahim, M. Khairuddin

{"title":"Raised flooring; a traditional designed architectural element as “passive design” system in future building. Case study: Masjid Kampung Laut, Kelantan","authors":"N. Amin, M. R. M. Nasir, I. L. H. Ibrahim, M. Khairuddin","doi":"10.1063/5.0051501","DOIUrl":"https://doi.org/10.1063/5.0051501","url":null,"abstract":"Building Industries contributes to a great number of carbon footprint through all these years. Through a proper planning, this industry can reduce the impacts to the earth generally and towards the environment specifically. This study was dedicated to propose an old traditional design found in 400 years building to be reapplied in modern construction as a “passive design” system. Raised timber flooring was commonly applied in South East Asia’s traditional buildings due to the availability of the material and suitability for the climate. Masjid Kampung Laut was chosen as the case study due to its excellent reputation compared to the age period of the building. Till this moment, Masjid Kampung Laut is still function very well and benefit excellently to the community where it was located; Nilam Puri, Kelantan. This study was conducted in qualitative method, involving several types of data collection. The intention of this research whereby proposing towards the architects, designers, developers, engineers, and all the main players in the construction industry to reuse the design element of “raised floor” in modern buildings such as residentials, resorts and hospitality, mosques, retails, transit shelters and terminals, restaurants, schools, office buildings and etc. This revolution in design will at the end push the authorities to consider the design to be used in government buildings, as it also represent our architectural identity, energy sustainable, as well benefits the environment. In conclusion, the traditional architecture element of raised timber flooring could be redesigned and recommercialised to suit the future buildings. This design should be given a chance as it surely can benefit the building itself, the users, and the environment globally.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128991575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From The King’s Speech to the classrooms: Tertiary students’ speaking anxiety and language proficiency 从《国王的演讲》到课堂:大学生的口语焦虑与语言能力

PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020) Pub Date : 2021-07-21 DOI: 10.1063/5.0051949

N. Zabidin, M. Atan, N. F. Dellah, N. Nordin, F. H. Amanah

{"title":"From The King’s Speech to the classrooms: Tertiary students’ speaking anxiety and language proficiency","authors":"N. Zabidin, M. Atan, N. F. Dellah, N. Nordin, F. H. Amanah","doi":"10.1063/5.0051949","DOIUrl":"https://doi.org/10.1063/5.0051949","url":null,"abstract":"Second language or foreign language learners commonly experience anxiety when they have to speak using the target language. This is made even more apparent when they are required to present during a speaking assessment or speak in front of their peers. Thus, this study was done with the aim to measure UiTM students’ speaking anxiety in English oral presentations in relation to their level of language proficiency. 244 students from four different faculties in UiTM Melaka were given a set of questionnaires that consisted of 33 items adapted from Foreign Language Classroom Anxiety Scale (FLCAS). The data collected through the questionnaires was then analysed using statistical analysis (SPSS). The results showed that the participants experienced high level of speaking anxiety in English oral presentations in all three of the speaking anxieties dimensions. Pearson Correlation test also revealed that there was a significant inverse relationship between their level of language proficiency and speaking anxiety, particularly in terms of fear of negative evaluation and test anxiety. Hence, the results from this study concluded that the students’ language proficiency was significant in examining their speaking anxiety and subsequently, can help provide an understanding on how to tackle the issue of language learners’ speaking anxiety.","PeriodicalId":259202,"journal":{"name":"PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129017273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1