Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap最新文献

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Pengaruh Jenis Limbah Aluminium Pada Proses Pengecoran Menggunakan Tungku Krusibel Terhadap Nilai Kekerasannya 铝废弃物对铸造过程的影响使用了对其刚性价值的关键熔炉
Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1948
David Dwi Putra, Faisal Haqqoni, Mohammad Nurhilal, Ulikaryani Ulikaryani
{"title":"Pengaruh Jenis Limbah Aluminium Pada Proses Pengecoran Menggunakan Tungku Krusibel Terhadap Nilai Kekerasannya","authors":"David Dwi Putra, Faisal Haqqoni, Mohammad Nurhilal, Ulikaryani Ulikaryani","doi":"10.35970/infotekmesin.v14i2.1948","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1948","url":null,"abstract":"Aluminum waste that has accumulated due to the widespread use of aluminum in household needs, daily life, and in the manufacture of industrial material components will have an impact on the environment if not handled properly. It is necessary to utilize aluminum waste in a product that has a sale value through a casting process using a crucible furnace. This research was conducted to determine the hardness differences of waste aluminum from used aluminum cans, used aluminum pots, and used aluminum wires melted in a smelting furnace. This study uses quantitative analysis and experimental research types. Tests carried out on this crucible furnace were carried out to determine the effect of the type of aluminum waste and the length of time it took to smelt the three types of material on the hardness results. The results of the Rockwell hardness test on aluminum can waste have an average value of 71.38 HRB, on aluminum pans waste it has an average value of 71.68 HRB, and on aluminum cable waste it has an average value of 53.02 HRB. \u0000 ","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48601883","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
Perbandingan Nilai Daya Luaran Panel Surya Kapasitas 50Wp Terhadap Posisi Reflektor Cermin Datar 太阳能电池板50Wp功率功率比平面反光镜位置
Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1913
Arif Sumardiono, Fadhillah Hazrina, Arief Syaefulloh
{"title":"Perbandingan Nilai Daya Luaran Panel Surya Kapasitas 50Wp Terhadap Posisi Reflektor Cermin Datar","authors":"Arif Sumardiono, Fadhillah Hazrina, Arief Syaefulloh","doi":"10.35970/infotekmesin.v14i2.1913","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1913","url":null,"abstract":"Solar panel systems are widely used to meet energy needs at this time. Solar panels have optimal power for 4 hours, namely 10:00 to 14:00. but this is still said to be not optimal if the angle of the static solar panels does not follow the movement of the sun. This can also be caused by weather factors that are covered in clouds. Previous research conducted by Tri Wahyu Ardianto used mirror reflectors but was not equipped with sensors and data storage. Based on this, to optimize solar panel energy, a flat mirror reflector design for solar panels has been made, equipped with four flat mirror reflectors on each side to form a large square. The solar panel is placed in the middle between the four flat mirrors. In this study, the measurement of electric power was carried out by carrying 3 variable angles for reflector positions, namely 0°, 60°, and 70°. The decision of the three reflector positions is made to find out the ratio of the maximum output power values. This system is also equipped with current, voltage, and light intensity sensors. The results show that the maximum output power of solar panels is shown at the reflector position of 60° with an average power output of 19.70 Watt followed by a reflector position of 70° with an average output power of 19.18 Watt and finally the reflector position is 0° with an average output power value of 14.87 Watt.","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46791902","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
Simulasi Tegangan (Stress) Pada Komponen Rangka Mesin Uji Tarik Sealent Menggunakan Solidworks 测试引擎机架组件上的压力模拟(压力)使用Solidworks拖动海水
Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1947
Dian Prabowo, Unggul Satria Jati, Ulikaryani Ulikaryani, Probo Hardini
{"title":"Simulasi Tegangan (Stress) Pada Komponen Rangka Mesin Uji Tarik Sealent Menggunakan Solidworks","authors":"Dian Prabowo, Unggul Satria Jati, Ulikaryani Ulikaryani, Probo Hardini","doi":"10.35970/infotekmesin.v14i2.1947","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1947","url":null,"abstract":"A series of processes are carried out in order to obtain the desired product result. One of the processes carried out is testing the strength of polymers by means of tensile testing in this case testing of polymer-based sealants. The method used is the method of simulating frame loading on the tensile testing machine that has been made. The software used to assist the simulation process is SolidWorks. The simulation is carried out in static mode or a fixed loading (no movement or vibration). A stress Analysis Simulation is carried out to get the result of static loading in the form of σ (stress). Loading simulations on the frame of the tensile testing machine for the tensile testing of the sealant are carried out on the components of the frame with different loading variations. Frame components with upward loading are given an average load of 38.5 MPa. Meanwhile, the frame components with downward loading are given an average load of 6.169 MPa. The largest average stress obtained from each component is 0.326 N/mm2. this value does not exceed the yield strength of  235 N/mm2.","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70084570","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
Monitoring of Rice Dryer Machine Using Tray Dryer Method 托盘式干燥机对水稻干燥机的监测
Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1915
Neneng Herani, Saepul Rahmat, Vicky Prasetia
{"title":"Monitoring of Rice Dryer Machine Using Tray Dryer Method","authors":"Neneng Herani, Saepul Rahmat, Vicky Prasetia","doi":"10.35970/infotekmesin.v14i2.1915","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1915","url":null,"abstract":"Indonesia is an agricultural country with 40% of the population's livelihood provided by farmers. Harvested rice typically has a moisture content of 20-27% on a wet basis. The type of artificial dryer that is often used is the tub or rotary type. This research aims to develop a rice dryer using a combined tray and rotary-type method. Based on the result, the higher the speed dryer, the shorter the drying time. The net result of this test is that the relationship between time and engine speed is inversely proportional. The higher the speed, the shorter the drying time. The net result of this test is that the relationship between time and engine speed is inversely proportional. Rice drying results can be described as dry, but not including ready-to-eat rice standards. The higher the speed, the shorter the drying time.","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45959889","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
The Influence of Fillet Step on Backward-Facing Step Flow Characteristics 圆角阶跃对后向阶跃流动特性的影响
Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1919
J. Julian, R. Anggara, F. Wahyuni
{"title":"The Influence of Fillet Step on Backward-Facing Step Flow Characteristics","authors":"J. Julian, R. Anggara, F. Wahyuni","doi":"10.35970/infotekmesin.v14i2.1919","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1919","url":null,"abstract":"Backward-facing step (BFS) is a model that provides several applicative features in engineering. The complex phenomena of BFS flow have a crucial impact on any application. Therefore, this study comprehensively investigates the flow characteristics of BFS with various step shapes. The backward-facing step (F-BFS) fillets were tested at intervals of Reynolds number 50 smaller than Re smaller than 400 using the CFD approach. Based on the computational results, it was found that flow separation is a fundamental phenomenon in BFS flow. Due to sudden expansion, Flow separation forms a recirculation area which continues to increase almost linearly with an increase in the Reynolds number. The recirculation area contains unstable rotating vortexes, which can impact the flow efficiency of BFS. Using a different step shape proves that F-BFS can minimize the recirculation area to increase the efficiency of the BFS flow. \u0000 ","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44750530","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
Evaluasi Efisensi Riser Untuk Bentuk Riser Samping yang Berbeda Menggunakan Metode Simulasi Casting 使用铸造模拟方法对不同侧边Riser的efieffect评估
Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1930
Galuh Bahari, Benidiktus Tulung Prayoga
{"title":"Evaluasi Efisensi Riser Untuk Bentuk Riser Samping yang Berbeda Menggunakan Metode Simulasi Casting","authors":"Galuh Bahari, Benidiktus Tulung Prayoga","doi":"10.35970/infotekmesin.v14i2.1930","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1930","url":null,"abstract":"As the solidification reaches the hot spot area, no molten metal remains and shrinkage is formed. To anticipate the shrinkage, a riser is added to the casting system. An optimal riser design would produce free shrinkage components. One of the factors that affect riser efficiency is the riser shape. This study aims to find the most efficient side riser shape by using simulation software. The riser shape of tubes, tubes with a half sphere on top, hemispheres, conical tubes, tubes with an oval cross-section, and cubes are used in this experiment, with the volume of all risers kept constant. The most efficient shape of the riser is the tube. The tube riser produces a larger modulus. The tube riser generated directional solidification. The same pattern can be seen in the niyama criteria and solidification temperature, where the tube riser has a more continuous pattern compared to other riser shapes. \u0000 ","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48718910","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
Sistem Komunikasi Mikrokontroler dan PLC Berbasis Komunikasi Serial Host Link dan Protokol C-Command RS232 微控制器和一个基于PLC的通信系统,主机连接和C-Command RS232协议
Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1924
Dewi Rizani Ruwahida Ruwahida, I. Rachman, H. A. Widodo, R. Adhitya, Yuda Irawan
{"title":"Sistem Komunikasi Mikrokontroler dan PLC Berbasis Komunikasi Serial Host Link dan Protokol C-Command RS232","authors":"Dewi Rizani Ruwahida Ruwahida, I. Rachman, H. A. Widodo, R. Adhitya, Yuda Irawan","doi":"10.35970/infotekmesin.v14i2.1924","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1924","url":null,"abstract":"The communication between microcontrollers and PLC has become an important technology development that needs to be enhanced. One of the reasons for the communication between these two devices is to facilitate the input process of data or information from sensors, which are responsible for detecting or measuring specific parameters. Not all sensors can be directly read by PLC, as some sensors have their own communication protocols or specific libraries that are not directly supported by PLC. Microcontrollers are often used as intermediaries between sensors and PLC. Microcontrollers can read sensor data and then convert it into a format that can be understood by PLC. Microcontrollers can perform flat processing tasks such as conversion and status evaluation to provide more relevant data, and then send this data to the PLC through a compatible communication protocol. In this study, the communication protocol used is the Host Link serial communication using the C-mode Command method. The communication testing conducted using 10 different data samples resulted in accurate values with an error percentage of 0%.","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44263013","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
Pengaruh Metode Quenching dan Tempering Terhadap Kekerasan Material Hot rolled Plate (HRP) Steel 材料硬度热轧板用调质方法改性剂
Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1927
Akhlis Rahman Sari Nurhidayat, Nur Akhlis Sarihidaya Laksana, Yurianto Yurianto
{"title":"Pengaruh Metode Quenching dan Tempering Terhadap Kekerasan Material Hot rolled Plate (HRP) Steel","authors":"Akhlis Rahman Sari Nurhidayat, Nur Akhlis Sarihidaya Laksana, Yurianto Yurianto","doi":"10.35970/infotekmesin.v14i2.1927","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1927","url":null,"abstract":"Hot rolled plate steel as a material to be used for steel armor needs to have the characteristics of a high hardness value. Medium carbon steel as the basic material is quenched at a temperature of 900 oC and tempering is carried out at a temperature of 125 oC and 175 oC with a holding time of 30 minutes. The Ms value is a benchmark for changes in martensite which is influenced by the constituent elements of the material. The use of water as a quench medium changes the structure of austenite to martensite. The martensite structure that occurs increases the optimum hardness value in HRP Steel material. The tempering process carried out above the Ms value causes a decrease in the hardness value. The highest hardness value was obtained in the quenching process with 542 HV which was influenced by the distribution of martensite. The decrease in hardness value occurs due to the tempering process, the average hardness value at temper 125 oC is 524.4 HV and 175 oC is 524 HV.","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48355105","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
Efek Pencampuran Butanol dan Diethyl Ether (DEE) Pada Pertalite Terhadap Torsi, Daya dan Brake Spesific Fuel Consumpsion Mesin Bensin 160cc 丁醇和二乙醚(DEE)混合对160cc Pertalite汽油机扭矩、功率和制动比油耗的影响
Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1906
F. Sanjaya, M. K. Usman, Faqih Fatkhurrozak, Syarifudin Syarifudin, Andre Budhi Hendrawan
{"title":"Efek Pencampuran Butanol dan Diethyl Ether (DEE) Pada Pertalite Terhadap Torsi, Daya dan Brake Spesific Fuel Consumpsion Mesin Bensin 160cc","authors":"F. Sanjaya, M. K. Usman, Faqih Fatkhurrozak, Syarifudin Syarifudin, Andre Budhi Hendrawan","doi":"10.35970/infotekmesin.v14i2.1906","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1906","url":null,"abstract":"The increase in the volume of vehicles resulted in a crisis of fossil fuels so there is a need for alternative fuels to replace gasoline. Butanol and Diethyl Ether (DEE) are alternative fuels that can be added to gasoline. This is because the Octane Number and high O2 levels optimize combustion in the cylinder and increase torque and power and save fuel. This study compares the addition of butanol and DEE to gasoline on torque, power, and Brake Specific Fuel Consumption (BSFC). The study used a 160cc gasoline engine with a carburetor with engine speeds of 1000, 2000, and 3000 rpm. Variation of fuel mixture 5%, 10%, and 15% on gasoline. The results showed that the DEE15 mixture increased the highest torque by 28% at 3000 rpm compared to other fuel mixtures. Engine power also increases the highest by 28% when using a mixture of DEE15 compared to other fuels. Meanwhile, BSFC experienced the highest decrease of 19% when using the DEE15 mixture compared to other mixtures.","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48176014","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
Uji Performa Model Batam Marine Ambulance Sebagai Armada Pendukung Medis dan Logistik 将巴淡海军救护车模型作为医疗支援和后勤舰队进行测试
Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap Pub Date : 2023-07-31 DOI: 10.35970/infotekmesin.v14i2.1922
N. A. Prasetyo, Rahman Hakim, Sapto Wiratno Satoto, Muliawan Nur Abiyad, Yogantara, Program Studi, Teknologi Rekayasa, Konstruksi Perkapalan, Politeknik Negeri Batam, Program Profesi, Politeknik Insinyur, Negeri Batam, Naufal Abdurrahman, Prasetyo
{"title":"Uji Performa Model Batam Marine Ambulance Sebagai Armada Pendukung Medis dan Logistik","authors":"N. A. Prasetyo, Rahman Hakim, Sapto Wiratno Satoto, Muliawan Nur Abiyad, Yogantara, Program Studi, Teknologi Rekayasa, Konstruksi Perkapalan, Politeknik Negeri Batam, Program Profesi, Politeknik Insinyur, Negeri Batam, Naufal Abdurrahman, Prasetyo","doi":"10.35970/infotekmesin.v14i2.1922","DOIUrl":"https://doi.org/10.35970/infotekmesin.v14i2.1922","url":null,"abstract":"This study aims to test the performance of the Batam Marine Ambulance model as a medical and logistics support fleet using the comparison ship method. A series of stability and motion analysis processes were carried out, then the results were assessed to determine the best design among the proposed design options. Performance tests used three ship models (Model I, Model II, and Model III). It is known that in the stability test, the tilt angle of model III is 33.63° and the maximum GZ value is 4.673 cm. Then, in the resistance test, Model I has a lower resistance of 87.29 N and the required power is 1496.93 W compared to the other proposed models. In the seakeeping test, Model III was found to be more stable or less affected on all surface conditions because the RAO value was relatively lower, namely 90o in terms of heaving, rolling, and pitching at 135o and 180o then had lower additional resistance. The Model III design has good ship stability, drag, and seakeeping characteristics.","PeriodicalId":33598,"journal":{"name":"Infotekmesin Media Komunikasi Ilmiah Politeknik Cilacap","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48711541","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
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