发布求助
文献互助 智能选刊 最新文献

Jurnal Ilmiah SINERGI最新文献

筛选
英文 中文
Selection lead logistics provider in consumer goods using AHP – TOPSIS approach 使用AHP - TOPSIS方法选择领先的消费品物流供应商
Jurnal Ilmiah SINERGI Pub Date : 2023-04-14 DOI: 10.22441/sinergi.2023.2.006
Kuwat Suroto, H. Hasbullah
{"title":"Selection lead logistics provider in consumer goods using AHP – TOPSIS approach","authors":"Kuwat Suroto, H. Hasbullah","doi":"10.22441/sinergi.2023.2.006","DOIUrl":"https://doi.org/10.22441/sinergi.2023.2.006","url":null,"abstract":"Vendor selection is a strategic activity in order to support the achievement of the company`s success and competitiveness. Significantly, the company has some specific standards in the selection. Therefore, evaluation is needed to see which vendors match the company's criteria. The purpose of this study was to evaluate and select the proposed vendor in a decision support system using the AHP and TOPSIS approaches. The AHP method is used to determine the importance of the criteria, while the TOPSIS method is used to rank alternatives. The results show that Provider 1 has the highest score compared to other alternatives with a value of 0.852. Sensitivity analysis shows that the proposed AHP and TOPSIS methods are robust, suitable for this problem, and have a low rate of change.","PeriodicalId":31051,"journal":{"name":"Jurnal Ilmiah SINERGI","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89524779","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
Risk Assessment of Petrol Filling Stations in a Metropolitical City of Kaduna State, Nigeria 尼日利亚卡杜纳州某大都市加油站的风险评估
Jurnal Ilmiah SINERGI Pub Date : 2023-04-14 DOI: 10.22441/sinergi.2023.2.005
L. Kuburi, U. Umar, A. N. Oyedeji
{"title":"Risk Assessment of Petrol Filling Stations in a Metropolitical City of Kaduna State, Nigeria","authors":"L. Kuburi, U. Umar, A. N. Oyedeji","doi":"10.22441/sinergi.2023.2.005","DOIUrl":"https://doi.org/10.22441/sinergi.2023.2.005","url":null,"abstract":"With both their high-risk and high-profit nature, Petroleum filling stations have become a significant subject in risk estimation and assessment studies. Some of the risks associated with this organization include compliance with laid-down standards by monitoring bodies. This study aims to carry out a risk assessment of petroleum filling stations in Kaduna Metropolis, Nigeria. This involved assessing the level of compliance to laid-down standards on environmental conditions and equipment and assessing the awareness of attendants in these petroleum filling stations to the possible risks in their working environment. The design methodology employed for this study was the use of self-administered questionnaires. The study result showed that the respondents were of the perspective that they are exposed to hazards in the petrol filling station. However, risks such as sleeping disorders, memory loss, cancer, etc., due to long-term exposure to hazardous petroleum substances seem to have lots of uncertainty from the attendants.","PeriodicalId":31051,"journal":{"name":"Jurnal Ilmiah SINERGI","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77272689","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
Utilizing waste heat gasoline engine in the design and fabrication of a fin and tube evaporator for the Organic Rankine Cycle (ORC) 余热汽油机在有机朗肯循环(ORC)翅管式蒸发器设计与制造中的应用
Jurnal Ilmiah SINERGI Pub Date : 2023-04-14 DOI: 10.22441/sinergi.2023.2.004
Awaludin Martin, R. Hartono, Reza Asrian
{"title":"Utilizing waste heat gasoline engine in the design and fabrication of a fin and tube evaporator for the Organic Rankine Cycle (ORC)","authors":"Awaludin Martin, R. Hartono, Reza Asrian","doi":"10.22441/sinergi.2023.2.004","DOIUrl":"https://doi.org/10.22441/sinergi.2023.2.004","url":null,"abstract":"The excessive consumption of fossil fuels is causing environmental problems, which can be addressed by utilizing renewable energy sources such as hydro energy, biomass, solar heat, geothermal, and waste heat. In particular, the exhaust gas from gasoline engines presents an opportunity for energy recovery, as only 25% of the energy is utilized while the remaining 75% is wasted. A fin and tube type evaporator was designed, manufactured, and tested to utilize this exhaust gas in an Organic Rankine Cycle (ORC) system. The evaporator was designed with an outer tube diameter of 9.525 mm and a total tube length of 41.4 m, featuring 90 tubes and 135 fins with a total area of 14,325 m2. It achieved an average effectiveness of 94.33%. The results showed that the waste heat from the exhaust gas of a gasoline engine could be used as a source of energy in an ORC system with an efficiency of 2.13%. It results in 7.02 kJ/s of energy absorbed by the evaporator and a net power generated of 0.15 kJ/s. This research demonstrates the potential for utilizing waste heat from gasoline engines as an energy source to generate electricity.","PeriodicalId":31051,"journal":{"name":"Jurnal Ilmiah SINERGI","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90784273","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
Effect of one-year corrosion on steel bridge materials in the maintenance stage with the Charpy impact test method 用夏比冲击试验法研究钢桥材料在维护阶段一年腐蚀的影响
Jurnal Ilmiah SINERGI Pub Date : 2023-02-26 DOI: 10.22441/sinergi.2023.2.002
Fauzri Fahimuddin, Mudiono Kasmuri, Rikki Sofyan, S. Junaidi, Latha Ms
{"title":"Effect of one-year corrosion on steel bridge materials in the maintenance stage with the Charpy impact test method","authors":"Fauzri Fahimuddin, Mudiono Kasmuri, Rikki Sofyan, S. Junaidi, Latha Ms","doi":"10.22441/sinergi.2023.2.002","DOIUrl":"https://doi.org/10.22441/sinergi.2023.2.002","url":null,"abstract":"Corrosion of steel bridges is a major problem because it has the potential to reduce the performance of the structure over its lifetime. One factor that should not be reduced is fracture toughness, so this should be a very important concern in the maintenance program. Existing guidelines do not specify when corrosion conditions are hazardous and when corrosion conditions are not hazardous to structural performance. This study aims to explain how long corrosion does not cause danger, and when corrosion becomes dangerous. The Charpy Impact Test was used in this study to examine the effect of corrosion with a corrosion duration of weekly up to one year on fracture toughness. The series of tests in this research program used SM-490-type specimens which are steel plates commonly used for bridge structures. Specimens with variations in corrosion duration which were the result of immersion in sulfuric acid solution to simulate corrosion growth were then subjected to crack toughness testing. The toughness of each specimen was tested with a corrosion period starting from 1 week and so on up to 1 year to determine the level of fracture toughness. The results obtained from all tests showed that there was no decrease in the toughness of the corroded specimens for up to 1 year. The data presented in this study is very helpful for the designers and maintainers to plan corrosion treatment programs with clearer and more accurate considerations in assessing the structural integrity of steel bridges affected by corrosion.","PeriodicalId":31051,"journal":{"name":"Jurnal Ilmiah SINERGI","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90415860","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
Sentiment Analysis From Twitter About Covid-19 Vaccination in Indonesia Using Naive Bayes and Xgboost Classifier Algorithm 使用朴素贝叶斯和Xgboost分类器算法对Twitter上关于印度尼西亚Covid-19疫苗接种的情绪分析
Jurnal Ilmiah SINERGI Pub Date : 2023-02-26 DOI: 10.22441/sinergi.2023.2.001
Alvin Irwanto, L. Goeirmanto
{"title":"Sentiment Analysis From Twitter About Covid-19 Vaccination in Indonesia Using Naive Bayes and Xgboost Classifier Algorithm","authors":"Alvin Irwanto, L. Goeirmanto","doi":"10.22441/sinergi.2023.2.001","DOIUrl":"https://doi.org/10.22441/sinergi.2023.2.001","url":null,"abstract":"The pandemic that hit the world has greatly impacted our life. But after some time, it seems that it will be going to end because the vaccine has already been made. In response to this, some people expressed their opinions about this vaccination on social media, for example, in the form of tweets on Twitter. The authors use those opinions or tweets as sentiment analysis material to determine the assessment of this vaccination. The tweet data in this study was obtained through data crawling using the Twitter API with the Python programming language. The variables used in this case are public tweets and their sentiments. This sentiment analysis process uses the Classification method with the Naive Bayes Classifier and will be compared with the XGBoost Classifier algorithm. The results of this study indicate that people are more likely to respond positively to this vaccination. In this case, the Naive Bayes Classifier got better performance with 0.95 from ROC - AUC Score and 134 ms in runtime compared to the XGBoost Classifier algorithm with 0.882 in ROC - AUC Score and 1 minute and 59 seconds in runtime.","PeriodicalId":31051,"journal":{"name":"Jurnal Ilmiah SINERGI","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80269840","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
PENGENALAN DAN PELATIHAN PENGGUNAAN INTERNET GURU-GURU PAUD DI WILAYAH KELURAHAN BOJONGKULUR BOGOR
Jurnal Ilmiah SINERGI Pub Date : 2023-02-17 DOI: 10.59134/sinergi.v2i01.190
Riama Sibarani, Nur Chafid
{"title":"PENGENALAN DAN PELATIHAN PENGGUNAAN INTERNET GURU-GURU PAUD DI WILAYAH KELURAHAN BOJONGKULUR BOGOR","authors":"Riama Sibarani, Nur Chafid","doi":"10.59134/sinergi.v2i01.190","DOIUrl":"https://doi.org/10.59134/sinergi.v2i01.190","url":null,"abstract":"Perkembangan teknologi yang sangat cepat membuat sebagian orang terutama guruguru PAUD yang sebagian hanya merupakan lulusan SMA, dan bahkan tadinya hanya ibu rumah tangga biasa kesulitan untuk beradaptasi perkembangan teknologi tersebut.Program kegiatan Pengabdian kepada Masyarakat sebagai bentuk kepedulian lembaga terhadap kegiatan yang ada dimasyarakat untuk mengembangkan keterampilan, serta menambah wawasan dan pengetahuan yang berkaitan dengan perkembangan IPTEK. Dengan adanya perkembangan teknologi informasi di era revolusi industri 4.0, peran TIK (Teknologi Informasi dan Komunikasi) sangat dibutuhkan bagi para guru dalam menghadapi perubahan dan tuntutan zaman. Adapun solusi dari permasalahan tersebut adalah Pelatihan Penggunaan Internet bagi guru-guru PAUD di Kelurahan Jatirasa Bekasi, sehingga guru-guru PAUD tersebut mengetahui dan memahami tentang penggunakan internet. Hasil dari kegiatan ini; secara umum peserta sudah memahami penggunaan internet, yaitu dengan membuat akun email, mengirim berita melalui email, membalas email, dan menforward email ke akun yang lain","PeriodicalId":31051,"journal":{"name":"Jurnal Ilmiah SINERGI","volume":"IA-21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84607867","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
PELATIHAN KOMPUTERISASI GURU PAUD DI KELURAHAN GROGOL SELATAN 保罗在南下坡的教师计算机培训
Jurnal Ilmiah SINERGI Pub Date : 2023-02-17 DOI: 10.59134/sinergi.v2i02.181
Bosar Panjaitan, Riama Sibarani, Hernalom Sitorus
{"title":"PELATIHAN KOMPUTERISASI GURU PAUD DI KELURAHAN GROGOL SELATAN","authors":"Bosar Panjaitan, Riama Sibarani, Hernalom Sitorus","doi":"10.59134/sinergi.v2i02.181","DOIUrl":"https://doi.org/10.59134/sinergi.v2i02.181","url":null,"abstract":"Strategi menciptakan manusia yang bersumber daya unggul dan kebebasan masyarakat untuk mengaktualisasikan dirinya merupakan prasyarat pokok bagi perkembangan masyarakat maju. Dunia pendidikan akan berkembang dengan baik jika sumber daya atau tenaga tenaga pendidik/ guru termasuk guru Paud juga dibekali dengan wawasan yang berorientasi ke masa depan. Orientasi bersifat fleksibel yang mudah menyesuaikan diri dengan perkembangan teknologi untuk menjadi manusia kreatif, produktif, berwawasan ke masa depan dan berdaya unggul, karena bangsa yang maju adalah bangsa yang menguasai teknologi dan informasi","PeriodicalId":31051,"journal":{"name":"Jurnal Ilmiah SINERGI","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90316645","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
PELATIHAN SISTEM INFORMASI PENJUALAN PADA PT. AUTO DAYA KEISINDO - HONDA TENDEAN PT. AUTO power KEISINDO -本田TENDEAN的销售信息系统培训
Jurnal Ilmiah SINERGI Pub Date : 2023-02-17 DOI: 10.59134/sinergi.v2i02.182
Prionggo Hendradi, Agung Priyambodo
{"title":"PELATIHAN SISTEM INFORMASI PENJUALAN PADA PT. AUTO DAYA KEISINDO - HONDA TENDEAN","authors":"Prionggo Hendradi, Agung Priyambodo","doi":"10.59134/sinergi.v2i02.182","DOIUrl":"https://doi.org/10.59134/sinergi.v2i02.182","url":null,"abstract":"Di era globalisasi saat ini, perkembangan perekonomian di dunia yang semakin kompetitif dirasakan menjadi semakin kompleks. Perkembangan ilmu pengetahuan, teknologi, dan informatika telah mewarnai perkembangan kehidupan manusia secara globaldalam bidang perekonomian, pendidikan, pemerintahan dan kehidupan sesehari-hari. PT. Auto Daya Keisindo – Honda Tendean yang bergerak di bidang penjualan mobil dan bertempat di mampang jakarta selatan saat ini mengalami kesulitan dalam mengembangkan penjualan maupun promosi, dikarenakan PT. Auto Daya Keisindo – Honda Tendean masih menggunakan sistem penjualan dan promosi yang masih konvensional (direct selling) dalam arti pelanggan masih harus datang ke tempat penjualannya langsung dan sistem promosi yang hanya dengan menyebarkan brosur, walaupun sudah berjalan baik tetapi ini tidak optimal untuk di zaman sekarang ini, karena tidak semua kalangan dapat menerima informasi mengenai PT. Auto Daya Keisindo – Honda Tendean ini, jelas ini sangat mempengaruhi penjualan mobil PT. Auto Daya Keisindo – Honda Tendean","PeriodicalId":31051,"journal":{"name":"Jurnal Ilmiah SINERGI","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86374881","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
PELATIHAN JASA PENYIAPAN SUMBERDAYA MANUSIA DI PT. PERKASA SATRIA NUSANTARA 在强大的PT.萨马塔拉人体资源训练服务
Jurnal Ilmiah SINERGI Pub Date : 2023-02-17 DOI: 10.59134/sinergi.v2i02.185
Chairun Nisa, Nur Chafid
{"title":"PELATIHAN JASA PENYIAPAN SUMBERDAYA MANUSIA DI PT. PERKASA SATRIA NUSANTARA","authors":"Chairun Nisa, Nur Chafid","doi":"10.59134/sinergi.v2i02.185","DOIUrl":"https://doi.org/10.59134/sinergi.v2i02.185","url":null,"abstract":"PT. Perkasa Satria Nusantara adalah perusahaan yang bergerak dibidang jasa penyiapan dan pengolahan SDM (Sumber Daya Manusia) sebagai pengemudi. Sebagai langkah awal dalam upaya memberikan kontribusi pada dunia bisnis, maka PT. Perkasa Satria Nusantara menyediakan layanan tenaga kerja outsorcing. Kegiatan yang dilakukan oleh PT. Perkasa Satria Nusantara antara lain melakukan perekrutan, menyediakan tenaga kerja yang bekerja langsung dibawah kontrol manajemen perusahaan (outsourcing).","PeriodicalId":31051,"journal":{"name":"Jurnal Ilmiah SINERGI","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77522470","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
PENYULUHAN DAN PELATIHAN HIDUP BERSIH DAN CINTA LINGKUNGAN SEKOLAH MADRASAH DINIYAH AL IKHLAS JATIRASA BEKASI JAWA BARAT 教育和培训清洁生活和热爱学校环境西爪哇省正义的伊斯兰学校
Jurnal Ilmiah SINERGI Pub Date : 2023-02-17 DOI: 10.59134/sinergi.v2i01.191
Nurfajrian Hayati, Yusriani Sapta dewi, B. Sitorus
{"title":"PENYULUHAN DAN PELATIHAN HIDUP BERSIH DAN CINTA LINGKUNGAN SEKOLAH MADRASAH DINIYAH AL IKHLAS JATIRASA BEKASI JAWA BARAT","authors":"Nurfajrian Hayati, Yusriani Sapta dewi, B. Sitorus","doi":"10.59134/sinergi.v2i01.191","DOIUrl":"https://doi.org/10.59134/sinergi.v2i01.191","url":null,"abstract":"Pembangunan kesehatan bertujuan meningkatkan kesadaran, kemampuan dan kemauan hidup sehat bagi setiap penduduk agar dapat mewujudkan derajat kesehatan yang setinggitingginya. Masyarakat diharapkan mampu berperan sebagai pelaku pembangunan kesehatan dalam menjaga, memelihara dan meningkatkan derajat kesehatannya sendiri serta berperan aktifdalam mewujudkan kesehatan masyarakat. Harapan tersebut dapat terwujud apabila masyarakat diberdayakan sepenuhnya dengan sumber daya dimilikinya untuk dapat menerapkan PHBS dalam kehidupannya sehari-hari, baik di rumah, di sekolah, di tempat kerja. Perilaku Hidup Bersih dan Sehat (PHBS) adalah semua perilaku kesehatan yang dilakukan atas kesadaran sehingga anggota keluarga atau keluarga dapat menolong dirinya sendiri di bidang kesehatan dan dapat berperan aktif dalam kegiatan – kegiatan kesehatan dan berperan aktif dalam kegiatan–kegiatan kesehatan di masyarakat.","PeriodicalId":31051,"journal":{"name":"Jurnal Ilmiah SINERGI","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80532525","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信