International journal of emerging trends in science and technology最新文献

筛选
英文 中文
PREVENTION OF COAL RAW MATERIALS FREEZING BY MEANS OF ORGANOSILICON COMPOUNDS 用有机硅化合物防止煤原料冻结
International journal of emerging trends in science and technology Pub Date : 2020-11-30 DOI: 10.31435/rsglobal_conf/30112020/7262
E. Shmeltser, M. Kormer, V. Lyalyuk
{"title":"PREVENTION OF COAL RAW MATERIALS FREEZING BY MEANS OF ORGANOSILICON COMPOUNDS","authors":"E. Shmeltser, M. Kormer, V. Lyalyuk","doi":"10.31435/rsglobal_conf/30112020/7262","DOIUrl":"https://doi.org/10.31435/rsglobal_conf/30112020/7262","url":null,"abstract":". This article authors represents the results of search for new reagents to prevent the freezing of coal in winter. Attention focuses on the physicochemical characteristics of silicone polymer, methods of introduction in coal concentrate and influence this reagent on freezing. The results of studies have shown that the use of organosilicon is more effective use of acetates and chlorides of metals. The high activity of organosilicon substances is explained by their elemental composition and structure of molecules.","PeriodicalId":13970,"journal":{"name":"International journal of emerging trends in science and technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89115803","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 ROLE OF THE GOVERNMENT AS A PARTICIPANT IN THE INNOVATIVE AGRICULTURE SYSTEM 政府作为创新农业系统参与者的作用
International journal of emerging trends in science and technology Pub Date : 2020-11-30 DOI: 10.31435/rsglobal_conf/30112020/7266
G. Voskanyan
{"title":"THE ROLE OF THE GOVERNMENT AS A PARTICIPANT IN THE INNOVATIVE AGRICULTURE SYSTEM","authors":"G. Voskanyan","doi":"10.31435/rsglobal_conf/30112020/7266","DOIUrl":"https://doi.org/10.31435/rsglobal_conf/30112020/7266","url":null,"abstract":"Innovation is considered to be the driving force of the whole economy, as well as the development tool of the agrarian sector in particular. Innovation enables us to overcome both local and global challenges. The article presents the innovative capacity in agriculture, models, participants, etc. The main directions of governments' activities in the field of innovation in different countries and the tools with which the governments try to promote innovative development have been studied. Agriculture is one of the most important sectors of the Armenian economy, in which there are many unresolved issues. The best and the most effective way to solve these problems is through innovation. However, the studies show that the process of innovative development of the RA agrarian sphere is very slow, which is partly due to the shortcomings in the field of science. The article presents some indicators of RA science. The conclusion section of the article presents clear recommendations that should be implemented by the RA Government to increase the efficiency and competitiveness of the agricultural sector through innovation.","PeriodicalId":13970,"journal":{"name":"International journal of emerging trends in science and technology","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78397970","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
RESULT STUDY OF DESTINATION AND SATISFACTION OF CHINESE TOURISTS, VISITING MONGOLIA 中国游客赴蒙古旅游目的地及满意度的结果研究
International journal of emerging trends in science and technology Pub Date : 2020-11-30 DOI: 10.31435/rsglobal_conf/30112020/7268
B. Urnult, Badam Ariya
{"title":"RESULT STUDY OF DESTINATION AND SATISFACTION OF CHINESE TOURISTS, VISITING MONGOLIA","authors":"B. Urnult, Badam Ariya","doi":"10.31435/rsglobal_conf/30112020/7268","DOIUrl":"https://doi.org/10.31435/rsglobal_conf/30112020/7268","url":null,"abstract":". With the increasing number of foreign tourists visiting Mongolia, new tourist products and regional destinations are emerging. In recent years, the number of foreign tourists visiting Mongolia has increased, with Chinese tourists accounting for one-third of the market, and this growth is expected to continue. Thus, the results of a sample survey of 750 tourists and residents of Chinese tour operators in Mongolia have compiled 74 (18 groups) indicators reflecting the direction and satisfaction of Chinese tourists visiting Mongolia. The results of the study identified 9 regions where Chinese tourists are more inclined to travel to Mongolia and summarized 9 factors that are necessary to improve Destination management. The results of the study were ranked according to the Gray method, and the satisfaction score was assessed by quantitative and qualitative methods. As a result of this assessment, this paper shows that Ulaanbaatar, Gorkhi-Terelj National Park, and border regions are more satisfied.","PeriodicalId":13970,"journal":{"name":"International journal of emerging trends in science and technology","volume":"861 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82074806","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
ЕОЗИНОФІЛЬНИЙ ГАСТРИТ У ДІТЕЙ: ОСОБЛИВОСТІ МОРФОГЕНЕЗУ
International journal of emerging trends in science and technology Pub Date : 2020-11-25 DOI: 10.31435/rsglobal_conf/30112020/7270
В. І. Боброва
{"title":"ЕОЗИНОФІЛЬНИЙ ГАСТРИТ У ДІТЕЙ: ОСОБЛИВОСТІ МОРФОГЕНЕЗУ","authors":"В. І. Боброва","doi":"10.31435/rsglobal_conf/30112020/7270","DOIUrl":"https://doi.org/10.31435/rsglobal_conf/30112020/7270","url":null,"abstract":"В статті представлена характеристика морфологічних та імуногістохімічних змін слизової оболонки шлунка у дітей з еозинофільним гастритом. Перебіг еозинофільного гастриту у дітей характеризується дисбалансом процесів клітинного відновлення, а саме підвищенням індексу проліферації, зниженням проапоптозного і антиапоптозного показників, що призводить до порушень фізіологічної регенерації з подальшим розвитком деструктивних змін слизової оболонки шлунка. Встановлено, що у більшості дітей були діагностовані крововиливи, мікротромбози, фіброз строми, проліферація фібробластів і колагенових волокон, вогнищева деструкція залоз слизової оболонки шлунка. При імуногістохімічному дослідженні біоптатів шлунка у більшості дітей з еозинофільним гастритом була виявлена нерівномірна експресія рецептора VEGFR 1 в ендотеліальних клітинах шлунка. Експресію колагену IV типу визначали у вигляді окремих фрагментованих вогнищ в базальних мембранах поверхневого епітелію і поодиноких залозистих структурах. Виражену експресію TGFRβ позитивних клітинних елементів діагностували лише у пацієнтів з вираженим фіброзом слизової оболонки шлунка Отримані дані свідчать, що перебіг еозинофільного гастриту супроводжується порушеннями мікроциркуляції і стромально-епітеліальною перебудовою слизової оболонки шлунка.","PeriodicalId":13970,"journal":{"name":"International journal of emerging trends in science and technology","volume":"178 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91554956","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
Nash - Equilibrium solutions for Fuzzy Rough Continuous Static Games 模糊粗糙连续静态博弈的纳什均衡解
International journal of emerging trends in science and technology Pub Date : 2020-11-07 DOI: 10.18535//IJETST/V7I10.01
M. Zidan, Y. A. Abonaga, M. Shokry
{"title":"Nash - Equilibrium solutions for Fuzzy Rough Continuous Static Games","authors":"M. Zidan, Y. A. Abonaga, M. Shokry","doi":"10.18535//IJETST/V7I10.01","DOIUrl":"https://doi.org/10.18535//IJETST/V7I10.01","url":null,"abstract":"Fuzzy rough is used to measure the various uncertainties with high vagueness and imprecision in continuous static games.In this article we develop a new class de ned as fuzzy rough continuous static games (FRGSG) in which the objective functions and the constraints have fuzzy rough nature.The fuzzy part is converted into deterministic ones by utilizing the \u000b-cut methodology and the roughness part is transformed into two problems corresponding to the upper and lower approximation models thus, the result is four cases.The necessary conditions for determining Nash- Equilibrium points of fuzzy rough continuousstatic games are achieved and a numerical example is performed to support the theoretical claims.","PeriodicalId":13970,"journal":{"name":"International journal of emerging trends in science and technology","volume":"29 1","pages":"6950-6965"},"PeriodicalIF":0.0,"publicationDate":"2020-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89563979","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: 2
Review on Heart Water Disease in Ruminants at Suro District 苏洛地区反刍动物心水病研究进展
International journal of emerging trends in science and technology Pub Date : 2020-09-20 DOI: 10.18535/IJETST/V7I9.01
Israel Gammada, Dr.Wayu Jara
{"title":"Review on Heart Water Disease in Ruminants at Suro District","authors":"Israel Gammada, Dr.Wayu Jara","doi":"10.18535/IJETST/V7I9.01","DOIUrl":"https://doi.org/10.18535/IJETST/V7I9.01","url":null,"abstract":"Heart water is a tick borne infectious disease of ruminants affecting cattle, sheep, goats and antelope which is caused by the rickettsia organism cowdria ruminatium. The objective of this seminar is to review on heart water disease (cowdrosis) with the successful control of the disease. Heart water occurs only where vector ticks of the genus amblyomma are active and was limited in its occurrence to Africa, Madagascar and three countries in the West Indies. It is one of the main causes of death in imported breeds of cattle, sheep and goats in Africa south of the Sahara desert. A tentative diagnosis of heart water is based on the presence of amblomma vectors, of clinical nervous signs, and of transudates in the pericardium and thorax at postmortem examination, which must then be confirmed by demonstration of the causative organism or its DNA. Methods of control and prevention of cawdriosis is through chemotherapy, vaccination and vector control. Therefore calves of less than 4 weeks and lambs in the first week of life should be immunized.","PeriodicalId":13970,"journal":{"name":"International journal of emerging trends in science and technology","volume":"10 1","pages":"6943-6949"},"PeriodicalIF":0.0,"publicationDate":"2020-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77927627","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
Jalousie Conflit Matrimoniale Jalousie婚姻冲突
International journal of emerging trends in science and technology Pub Date : 2020-09-10 DOI: 10.18535//ijetst/v6i8.01
Françoise Michelle Ikapi, Isaïe Nizeyimana, Jean Teghonong
{"title":"Jalousie Conflit Matrimoniale","authors":"Françoise Michelle Ikapi, Isaïe Nizeyimana, Jean Teghonong","doi":"10.18535//ijetst/v6i8.01","DOIUrl":"https://doi.org/10.18535//ijetst/v6i8.01","url":null,"abstract":"L’objet de notre étude porte sur la jalousie. Définie comme un sentiment fondé sur le désir de posséder la personne aimée et sur la crainte de la perdre au profit d’un rival, l’objectif ici est de confronter les logiques relationnelles établies entre les partenaires de la relation face à la jalousie dans le couple. \u0000En partant du constat que la jalousie constitue l’une des principales causes des conflits matrimoniaux et des violences conjugales, il s’agit de comprendre d’une part, comment se donne à voir le phénomène de la jalousie au sein du couple, en terme de crises, de conflits et de violences conjugales. \u0000Et d’autre part, pourquoi la jalousie cause-t-elle autant de crimes passionnels au sein de notre société aujourd’hui l’hypothèse stipule que la jalousie est une modalité ambivalente d’interactions conjugales qui induit un déséquilibre du lien affectif excessif dans le fonctionnement du couple. \u0000Autrement dit, il s’agit des modes relationnels interactifs qui engendrent des violences conjugales parce que l’enjeu repose sur des modalités bipolaires. Une enquête de terrain par entretien semi-directifs à été effectuée au quartier Malibé dans la commune d’Akanda auprès de d’un échantillon de dix couples, dont quatre en couples mariées et six vivant maritalement et sous le même toit. En considérant le couple comme le lieu où l’homme et la femme trouvent leur épanouissement, notre modèle d’analyse s’inscrit dans la théorie de l’analyse des comportements individuels de Raymond BOUDON. Toutefois, elle intègre également les paradigmes fonctionnalistes de DURKHEIN (contrôle et contraintes) et ceux de l’interactionnisme symbolique de Goffman (Stigmates). Le traitement qualitatif des données collectées nous a permis de voir comment les comportements individuels, dans une relation amoureuse où alternent passion et peur (c’est-à-dire la jalousie), peuvent conduire aux conflits matrimoniaux et au-delà et aux violences conjugales. \u0000D’où la confirmation de notre hypothèse de recherche fondée sur le déséquilibre d’un lien affectif excessif entre preuve d’amour et crainte de la perte de l’autre, exclusivité affective et émotions destructrices.","PeriodicalId":13970,"journal":{"name":"International journal of emerging trends in science and technology","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81034373","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 Effect of the Ex-Smoker as an Educator on Smoking Behavior and Vital Lung Capacity of the Suspect Lung Cancer Patients 戒烟教育者对疑似肺癌患者吸烟行为及肺活量的影响
International journal of emerging trends in science and technology Pub Date : 2020-06-10 DOI: 10.18535/ijetst/v7i5.01
L. Herawati, Jenita D.T Donsu, Muhammad Raftaz Kayani, Malik Muhammad Ali Awan
{"title":"The Effect of the Ex-Smoker as an Educator on Smoking Behavior and Vital Lung Capacity of the Suspect Lung Cancer Patients","authors":"L. Herawati, Jenita D.T Donsu, Muhammad Raftaz Kayani, Malik Muhammad Ali Awan","doi":"10.18535/ijetst/v7i5.01","DOIUrl":"https://doi.org/10.18535/ijetst/v7i5.01","url":null,"abstract":"The study is aimed at getting information the effect of the ex-smoker as an educator on smoking behaviour and the lung vital capacity of the suspect lung cancer patients. \u0000The study design is quasi experiment. Respondents of the research are 45 suspect lung cancer patients taken from 4 hospitals. The data are analysed by parametric and nonparametric, level of significant 0.05. \u0000The result showed the ex-smoker as an educator able to increase the knowledge score, to decrease the average number of cigarettes smoked per-day and to increase the vital lung capacity, significantly. \u0000  \u0000Keywords: educator; smoking behaviour; suspect lung cancer patients","PeriodicalId":13970,"journal":{"name":"International journal of emerging trends in science and technology","volume":"16 1","pages":"6916-6923"},"PeriodicalIF":0.0,"publicationDate":"2020-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82015233","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
Gasim Alwi THE LAND USE ANALYSIS OF OIL PALM PLANTATION TO INCREASE OF INCOME IN EAST KALIMANTAN PROVINCE 加里曼丹省东部油棕种植增加收入的土地利用分析
International journal of emerging trends in science and technology Pub Date : 2020-05-15 DOI: 10.18535/IJETST/V7I4.01
A. Gasim
{"title":"Gasim Alwi THE LAND USE ANALYSIS OF OIL PALM PLANTATION TO INCREASE OF INCOME IN EAST KALIMANTAN PROVINCE","authors":"A. Gasim","doi":"10.18535/IJETST/V7I4.01","DOIUrl":"https://doi.org/10.18535/IJETST/V7I4.01","url":null,"abstract":"The development of oil palm plantation has been playing important roles in the economic development, which in turn increasing the income of rural community in East Kalimantan. However, this development will trigger the conversion of land function from forest and farming lands to oil palm plantations. This research applies unit analysis of sub-district/village in the region of East Kalimantan Province using pixel format (1 pixel was equivalent to 1.000 ha) through the process of geospatial model during the research period from 2000  to 2011. \u0000            Secondary data were used in the process of regression model analysis of using OLS (Ordinary Least Square) and Probit Estimation to estimate the land use and the income of oil palm farmers. The results of model  shows that (1) land use for oil palm plantation, has a significant positive correlation with variables, deforestation and the area of oil palm plantation, but the area of forest land cover  has a negative correlation. The result also shows that there was a negative correlation between deforestation variable and forest variable. This was because not all of the lands used for plantation were derived from forest lands. (2) In terms of probit panel estimation model, it was found that there was a positive and significant effect of production oil palm plantation on expansion of oil palms and (3) income of households that have  oil palm plantations. \u0000Forest land use and development needs to be controlled by taking economic factor into account; otherwise, it will give a negative impact on the income of the community.","PeriodicalId":13970,"journal":{"name":"International journal of emerging trends in science and technology","volume":"60 1 1","pages":"6895-6915"},"PeriodicalIF":0.0,"publicationDate":"2020-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73394127","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
Outcome of Adolescents and Young Adults with Acute Myeloid Leukemia: A Single-Center Experience 青少年和青年急性髓性白血病的预后:单中心经验
International journal of emerging trends in science and technology Pub Date : 2020-05-06 DOI: 10.18535/IJETST/V7I3.01
Ahmed Embaby, A. Fathy, Mohammad Al-Akkad, A. Baraka, Haitham Elsheikh
{"title":"Outcome of Adolescents and Young Adults with Acute Myeloid Leukemia: A Single-Center Experience","authors":"Ahmed Embaby, A. Fathy, Mohammad Al-Akkad, A. Baraka, Haitham Elsheikh","doi":"10.18535/IJETST/V7I3.01","DOIUrl":"https://doi.org/10.18535/IJETST/V7I3.01","url":null,"abstract":"Abstract \u0000Introduction: Little is known about the outcomes of Adolescent and young adults (AYAs); aged 15-39 years with acute myeloid leukemia (AML) worldwide, so, we evaluated the clinical characteristics, response to therapy, and survival outcomes of these patients. \u0000Patients and Methods: In this observational prospective cohort study, we investigated 64 AYA AML patients, divided by their age at diagnosis into two groups, (AYA 16-29 years) and (AYA 30-39 years); including 26 and 20 patients, respectively. Patient and disease characteristics, in addition to treatment and survival outcomes, were analyzed using statistical package for social science software version 24 \u0000Results: The median age of the whole group was 29 years, with male-to-female ratio 1.3. The most common FAB subtypes were M2 and M4, 30.4% (for each subtype). Normal karyotyping represented the most frequent cytogenetic risk group (65.2%). An intensive induction therapy was given to most patients (82.6%) and a significant difference was found between the 2 patient groups regarding karyotyping and intensive induction therapy, P-value <0.001 and 0.048, respectively. \u0000The complete remission rate was (65.2%) and the relapse rate was 40.0% which was significantly higher in the (AYA 16-29 year) group, P<0.001. \u0000The 3-Year leukemia-free survival (LFS) rate was 23.6% and was significantly better within the (AYA 30-39 years) group, p-value = 0.002. While there was no significant difference in overall survival rates. \u0000Conclusion: AYA patients constitute a unique subset of patients with AML with an improved prognosis especially those aged from 30-39 years, who had better LFS and lower relapse rates. \u0000Keywords: Adolescent and young adults (AYAs), acute myeloid leukemia (AML), survival, prognosis.","PeriodicalId":13970,"journal":{"name":"International journal of emerging trends in science and technology","volume":"6 1","pages":"6888-6894"},"PeriodicalIF":0.0,"publicationDate":"2020-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74265585","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
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
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:481959085
Book学术官方微信