International Journal of Innovation in Mechanical Engineering and Advanced Materials最新文献_第3页

EXPERIMENTAL STUDY OF COMPRESSOR ENCLOSURE WITH PYRAMID ACCOUSTIC FOAM 锥形声学泡沫压气机外壳的实验研究

International Journal of Innovation in Mechanical Engineering and Advanced Materials Pub Date : 2023-04-01 DOI: 10.22441/ijimeam.v5i1.21942

Agus Noviana, Usman Sudjadi

{"title":"EXPERIMENTAL STUDY OF COMPRESSOR ENCLOSURE WITH PYRAMID ACCOUSTIC FOAM","authors":"Agus Noviana, Usman Sudjadi","doi":"10.22441/ijimeam.v5i1.21942","DOIUrl":"https://doi.org/10.22441/ijimeam.v5i1.21942","url":null,"abstract":"This study investigates the performance of compressor enclosures for noise absorption, reverberation, and machine ventilation to ensure a safe and healthy working environment for people. The Multi pro air compressor model BC 150 DMBW 1.5 HP is placed in an enclosure made of wood board, and for absorbing material, use 6 cm thick polyurethane pyramid foam. A fan with a flow rate of 280 CMH is used as a cooling medium and will operate simultaneously with the compressor operation. Flow Air Delivery (FAD) of the compressor is 126 L/min. The Sound Pressure Level (SPL) value is determined using a sound level meter before and after the compressor uses the enclosure. In addition, the enclosure's room temperature is recorded within 30 minutes of operation to determine whether there is a significant increase in heat to ensure that the enclosure for this compressor is still within safe limits. Based on the test results, it is known that after a 30-minute operation, the temperature rises from 29 OC to 65 OC in the inlet on the enclosure with the fan off, and the temperature rises from 29 OC to 51 OC on the enclosure with the fan on. While from the results of measuring the sound noise level, taken at a distance of 1 meter outside the enclosure, there is no significant difference, with or without using a fan, the decrease in sound noise level is only about 10 dB, which is 84 dB before using the enclosure, to 74 dB after using the enclosure. So, it can be concluded that the use of fans as coolers is quite effective in maintaining the temperature of the enclosure space when compared to natural cooling through ventilation, but the use of enclosures using pyramid foam material is not effective for reducing the noise level produced by the compressor when operating.","PeriodicalId":31435,"journal":{"name":"International Journal of Innovation in Mechanical Engineering and Advanced Materials","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135771549","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

ADVANCING ENERGY CONSERVATION AND SUSTAINABLE BUILDING PRACTICES THROUGH COMPREHENSIVE THERMAL-COOLING LOAD ANALYSIS IN AIRPORT BUILDING 通过机场建筑的综合热冷负荷分析推进节能和可持续建筑实践

International Journal of Innovation in Mechanical Engineering and Advanced Materials Pub Date : 2023-04-01 DOI: 10.22441/ijimeam.v5i1.22300

Fayza Yulia, Valeska Harianja, Nathan Bonadharma, Noval Pajri, Naufal Irsan

{"title":"ADVANCING ENERGY CONSERVATION AND SUSTAINABLE BUILDING PRACTICES THROUGH COMPREHENSIVE THERMAL-COOLING LOAD ANALYSIS IN AIRPORT BUILDING","authors":"Fayza Yulia, Valeska Harianja, Nathan Bonadharma, Noval Pajri, Naufal Irsan","doi":"10.22441/ijimeam.v5i1.22300","DOIUrl":"https://doi.org/10.22441/ijimeam.v5i1.22300","url":null,"abstract":"The global discussion on conserving energy's importance has persisted, paralleling the surge in energy use over two decades. This rise presents challenges for local energy supply to diverse buildings. Designing energy-efficient buildings has become crucial in reducing energy usage and promoting sustainability. This research comprehensively analyzed and assessed thermal-cooling loads within an airport building using Panasonic software. The investigation primarily focuses on evaluating cooling load and thermal dynamics within the airport facility, emphasizing enhancing energy efficiency, and ensuring thermal comfort. Additionally, duct sizing design was conducted to achieve a comprehensive HVAC installation. From the result of the investigation, it was found that the highest Cooling Load at the airport occurs at 4:00 PM, aligning with the peak temperature resulting from heat transmitted into the building, reaching 263,591 Watts for the Airport Lounge and 82,202 Watts for the Luggage Room. Building energy management must be undertaken to minimize the energy consumption during that period. By thoroughly examining thermal-cooling loads within an airport building, this research contributes to decision-making for designing and operating HVAC systems, thereby advancing sustainable building practices.","PeriodicalId":31435,"journal":{"name":"International Journal of Innovation in Mechanical Engineering and Advanced Materials","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135771545","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

Evaluating the Shear Strength of Subbase-subgrade Interface Using Large Scale Direct Shear Test 大型直剪试验评价基-路基界面抗剪强度

International Journal of Innovation in Mechanical Engineering and Advanced Materials Pub Date : 2023-03-13 DOI: 10.59615/ijie.3.1.35

Qais Sahib Banyhussan, Ahmed Mancy Mosa, Abdullah Nasser Hussein, Esraa Jasim Sigar

{"title":"Evaluating the Shear Strength of Subbase-subgrade Interface Using Large Scale Direct Shear Test","authors":"Qais Sahib Banyhussan, Ahmed Mancy Mosa, Abdullah Nasser Hussein, Esraa Jasim Sigar","doi":"10.59615/ijie.3.1.35","DOIUrl":"https://doi.org/10.59615/ijie.3.1.35","url":null,"abstract":"The inclusion of geogrid in road pavements can improve pavement performance through increasing the lateral confinement, bearing capacity, and overall rigidity of the pavement, as well as reducing the vertical and lateral pavement deformations. The materials used in the present study are: subbase granular materials Type B, two types of subgrade soil; clay and sandy soil, and two nonwoven biaxial geogrids (G1 and G2) used as reinforcing materials. Direct shear testing was adopted by manufacturing a large-scale direct shear apparatus consisted of an upper, square box of size 20 cm × 20 cm × 10 cm, and a lower, rectangular box of size 200 mm × 250 mm × 100 mm is used in the present study. The results show that, for the four normal stresses equal to 25, 50, 75 and 100 kPa, the interface shear stress curves increased and followed similar trend. For clay-subbase interface, installation of geogrid decreases the apparent cohesion of the material from 16.5 kPa (without reinforcement) to be 8 kPa and 13.5 kPa for G1 and G2, respectively. At sand-subbase interface, using geogrid leads to increase the cohesion of the material from 3.5 kPa to be 15.5 and 16 kPa for G1 and G2, respectively. The friction angle increases slightly from 30o (without reinforcement) to be 35o for G1 and G2 when the interface is subbase over clay. While, it decreased from 35.8o to be 32.1o for G1 and G2 at sand-subbase interface. The interaction coefficient for G1 and G2 increased when the normal strength increased at the clay-subbase interface. Otherwise, the behavior of interaction coefficient of the sand-subbase interface appears deferent trend, where increasing normal stress leads to decrease the interaction.","PeriodicalId":31435,"journal":{"name":"International Journal of Innovation in Mechanical Engineering and Advanced Materials","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85770263","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

A Different Traditional Approach for Automatic Comparative Machine Learning in Multimodality Covid-19 Severity Recognition 多模态Covid-19严重性识别中自动比较机器学习的不同传统方法

International Journal of Innovation in Mechanical Engineering and Advanced Materials Pub Date : 2023-03-13 DOI: 10.59615/ijie.3.1.1

M. Saraei, S. Rahmani, S. Rajebi, Sebelan Danishvar

{"title":"A Different Traditional Approach for Automatic Comparative Machine Learning in Multimodality Covid-19 Severity Recognition","authors":"M. Saraei, S. Rahmani, S. Rajebi, Sebelan Danishvar","doi":"10.59615/ijie.3.1.1","DOIUrl":"https://doi.org/10.59615/ijie.3.1.1","url":null,"abstract":"In March 2020, the world health organization introduced a new infectious pandemic called “novel coronavirus disease” or “Covid-19”, origin dates back to World War II (1939) and spread from the city of Wuhan in China (2019). The severity of the outbreak affected the health of abundant folk worldwide. This bred the emergence of unimodal artificial intelligence approaches in the diagnosis of coronavirus disease but solely led to a significant percentage of false-negative results. In this paper, we combined 2500 Covid-19 multimodal data based on Early Fusion Type-I (EFT1) architecture as a severity recognition model for the classification task. We designed and implemented one-step systems of automatic comparative machine learning (AutoCML) and automatic comparative machine learning based on important feature selection (AutoIFSCML). We utilized our posed assessment method called “Descended Composite Scores Average (DCSA)”. In AutoCML, Extreme Gradient Boost (DCSA=0.998) and in AutoIFSCML, Random Forest (DCSA=0.960) demonstrated the best performance for multimodality Covid-19 severity recognition while 70% of the characteristics with high DCSA were chosen by the internal important features selection system (AutoIFS) to enter the AutoCML system. The DCSA-based designed systems can be useful in implementing fine-tuned machine learning models in medical processes by leveraging the capacities and performances of the model in all methods. As well as, ensemble learning made sounds good among evaluated traditional models in systems.","PeriodicalId":31435,"journal":{"name":"International Journal of Innovation in Mechanical Engineering and Advanced Materials","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82193867","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

Evaluating Blockchain-Based Supply Chain Challenges (A Survey) 评估基于区块链的供应链挑战(一项调查)

International Journal of Innovation in Mechanical Engineering and Advanced Materials Pub Date : 2023-03-13 DOI: 10.59615/ijie.3.1.23

M. Rahmaty

{"title":"Evaluating Blockchain-Based Supply Chain Challenges (A Survey)","authors":"M. Rahmaty","doi":"10.59615/ijie.3.1.23","DOIUrl":"https://doi.org/10.59615/ijie.3.1.23","url":null,"abstract":"Blockchain technology is an emerging technology that will have a significant impact on the business of organizations. One of the influential areas of blockchain technology is the supply chain sector. Supply chain is a network of people and companies that focuses on the production and distribution of a specific product or service from the stage of primary producers to customers and consumers. Most supply and distribution networks face problems with managing all these components together. Many problems of current supply chains can be solved through blockchain technology; Because blockchain offers us very good and pristine ways to record, transfer and share information. The literature in this field is more focused on the technological sector and pays less attention to other sectors. In this research, it is emphasized the need to pay attention to the relationships between supply chain partners and change management when adopting this technology. Also, the current research identifies some of the challenges of adopting blockchain technology with a comprehensive view for the first time and places these challenges in a new classification. These challenges are classified in the groups of organizational challenges, inter-organizational challenges, external/environmental challenges, and technological challenges.","PeriodicalId":31435,"journal":{"name":"International Journal of Innovation in Mechanical Engineering and Advanced Materials","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80473548","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

Machine Learning Research On Breast And Lung Cancer Detection 乳腺癌和肺癌检测的机器学习研究

International Journal of Innovation in Mechanical Engineering and Advanced Materials Pub Date : 2023-03-13 DOI: 10.59615/ijie.3.1.48

D. Rao

引用次数: 0

Business Model of Internet of Things and Blockchain Technology in Developing Countries 发展中国家物联网和区块链技术的商业模式

International Journal of Innovation in Mechanical Engineering and Advanced Materials Pub Date : 2023-03-13 DOI: 10.59615/ijie.3.1.13

Mahmonir Bayanati

{"title":"Business Model of Internet of Things and Blockchain Technology in Developing Countries","authors":"Mahmonir Bayanati","doi":"10.59615/ijie.3.1.13","DOIUrl":"https://doi.org/10.59615/ijie.3.1.13","url":null,"abstract":"The Internet of Things (IoT) and blockchain are new concepts in the world of technology and communication, and communication in them is provided for any creature (human, objects), the ability to send data through communication networks, whether the Internet or intranet. IoT is known as one of the most important axes of future technology and has received considerable attention from all industries. Today, a large number of different parts of the Internet of Things are designed only for specific businesses, which indicates the acceptance of a large number of organizations to use this equipment, and of course, various technologies are also used in this field, including artificial intelligence and cloud computing. The purpose of this research is to investigate the use of Internet of Things in business and its business models. There are also frameworks for the easier development of business models, which this article is the framework of business models in electronic commerce for the program. Internet of Things and Blockchain according to the research/interview literature. These frameworks can be used by developers as a starting point for creating a business model for IoT and blockchain applications in developing countries.","PeriodicalId":31435,"journal":{"name":"International Journal of Innovation in Mechanical Engineering and Advanced Materials","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81638551","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: 6

MECHANICAL STUDY OF 9Cr-316SS-1Mo MATERIALS FOR NUCLEAR FUEL CLADDING MATERIALS POWER REACTORS 动力反应堆燃料包壳材料9Cr-316SS-1Mo材料的力学研究

International Journal of Innovation in Mechanical Engineering and Advanced Materials Pub Date : 2023-02-07 DOI: 10.22441/ijimeam.v4i2.16832

Mayda Purnama, U. Sudjadi

{"title":"MECHANICAL STUDY OF 9Cr-316SS-1Mo MATERIALS FOR NUCLEAR FUEL CLADDING MATERIALS POWER REACTORS","authors":"Mayda Purnama, U. Sudjadi","doi":"10.22441/ijimeam.v4i2.16832","DOIUrl":"https://doi.org/10.22441/ijimeam.v4i2.16832","url":null,"abstract":"Cladding or cladding used for nuclear fuel elements requires special requirements such as good mechanical properties, radiation resistance, corrosion resistance, adequate physical and chemical properties, and low thermal neutron absorption. Materials that are widely used as structural materials for nuclear reactors are beryllium, magnesium, aluminum, zirconium and their alloys. Alloy 9Cr-316-1Mo as Nuclear fuel cladding material. 9Cr-316-1Mo material has been made. The material 9Cr-316-1Mo was chosen as an alternative cladding material because it has good mechanical and chemical properties with a microscopic cross-section of 2.6 barn. At first, the 9Cr-316-1Mo sample was cast withThe composition is 90% 316L Stainless Steel, 9% Chromium (Cr) and 1% Molybdenum (Mo) is added using an electric arc. After casting the alloy,the composition of 9Cr-316-1Mo was tested without heating and then given heat treatment (tempering) starting from 100 0C, 200 0C, 300 0C, 400 0C and 500 0C and allowed to stand for 60 minutes, then tested for hardness (rockwell) , Impact testing, micro structure testing and Chemical composition testing (XRF). The results of the Rockwell hardness test obtained the highest hardness value in the sample without tempering, namely 20.66 HRc and the lowest hardness value in the sample with tempering 500 0C, namely 16.33 HRc. Then the impact test results obtained the highest impact energy value in the sample with tempering 100 0C, which is 0.9996 Joule/mm2 and the lowest impact energy value in the sample with tempering 500 0C, which is 0.9962 Joule/mm2. The results of the microstructure test showed that the structure of 9Cr-316-1Mo still contained ferrite, pearlite and martensite. The testing process is still not fully completed and will be reported later.","PeriodicalId":31435,"journal":{"name":"International Journal of Innovation in Mechanical Engineering and Advanced Materials","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47548142","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

ANALYSIS OF OIL ABSORPTION AND FRICTION COEFFICIENT OF BAMBOO POWDER, COCONUT POWDER, GLASS POWDER, AND COPPER POWDER COMPOSITES FOR CLUTCH PADS 竹粉、椰子粉、玻璃粉、铜粉复合材料离合器片吸油及摩擦系数分析

International Journal of Innovation in Mechanical Engineering and Advanced Materials Pub Date : 2023-02-07 DOI: 10.22441/ijimeam.v4i2.18235

Iqbal Risyuma, Muhamad Fitri

{"title":"ANALYSIS OF OIL ABSORPTION AND FRICTION COEFFICIENT OF BAMBOO POWDER, COCONUT POWDER, GLASS POWDER, AND COPPER POWDER COMPOSITES FOR CLUTCH PADS","authors":"Iqbal Risyuma, Muhamad Fitri","doi":"10.22441/ijimeam.v4i2.18235","DOIUrl":"https://doi.org/10.22441/ijimeam.v4i2.18235","url":null,"abstract":"This study aims to determine the characteristics of the absorption test with SAE 10W-30 and the friction coefficient test with the ASTM D 3702-94 test standard on composite clutch pads made from bamboo powder, coconut powder, glass powder, and copper powder. It is based on the considerations that there are abundance of natural resources of bamboo and coconut with that is still not optimally utilized as well as the discovery of several hazardous clutch lining (asbestos) basic material properties. In each test, each composition variation was tested 3 times and from the data, the average value of the composition variation was taken. Based on this research, the specimen with the highest oil absorption value is specimen combination 3 (BB20KL20CU0KC20) with an absorption value of 17.98% and the specimen with the lowest absorption value is specimen combination 2 (BB20KL20CU5KC15) with an absorption value of 4.88%, and the specimen with the highest percentage change in volume is specimen combination 1 (BB20KL20CU10KC10) with a percentage of 3.30%, and the specimen with the lowest percentage change in volume is specimen combination 2 (BB20KL20CU5KC15) with a percentage of 1.01%. From the results of the combined friction coefficient test, specimen 3 (BB20KL20CU0KC20) has the highest friction coefficient value of 0.54526 and specimen 2 (BB20KL20CU5KC15) has the lowest friction coefficient value of 0.16923.","PeriodicalId":31435,"journal":{"name":"International Journal of Innovation in Mechanical Engineering and Advanced Materials","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44333677","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

MORPHOLOGICAL AND PROPERTIES OF PORTLAND-COMPOSITE CEMENTS WITH CLASS C FLY ASH 含c类粉煤灰硅酸盐复合水泥的形态与性能研究

International Journal of Innovation in Mechanical Engineering and Advanced Materials Pub Date : 2023-02-07 DOI: 10.22441/ijimeam.v4i2.17036

Andrie Harmaji, A. Fadillah

{"title":"MORPHOLOGICAL AND PROPERTIES OF PORTLAND-COMPOSITE CEMENTS WITH CLASS C FLY ASH","authors":"Andrie Harmaji, A. Fadillah","doi":"10.22441/ijimeam.v4i2.17036","DOIUrl":"https://doi.org/10.22441/ijimeam.v4i2.17036","url":null,"abstract":"Portland-composite cements (PCC) were prepared with partial substitution of 5 to 25% of class C fly ash, obtained from East Java steam power plant. Properties of the composite cements was evaluated, through the setting time (initial and final) and compressive strength (3, 7, and 28 days) compared with control PCC. Setting time is retarded in Portland-composite cements with higher fly ash content. The retardation is highest in PCC with substitution of 25% fly ash. Lower compressive strength is obtained after 3 and 7 days of curing for PCC with 5-25% fly ash substitution in comparison with control cement, since pozzolanic reaction still did not show its effect. After 28 days, compressive strength was higher than that for control cement because pozzolanic reaction show its effect, highlighted by compressive strength increase of PCC substituted by 5% and 10% fly ash, 16.48 MPa and 16.52 MPa, respectively. This attributed to the differences in the pozzolanic activity of the applied fly ash. The compressive strength increase was explained by Scanning Electron Microscope (SEM), which shows that PCC with substitution of 10% fly ash had more Tobermorite presented compared to control cement.","PeriodicalId":31435,"journal":{"name":"International Journal of Innovation in Mechanical Engineering and Advanced Materials","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42668830","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