Practice of Anticorrosive Protection最新文献_第6页

Research of efficiency of security of cathodic protection from corrosion for pipelines prepared for reconstruction with method «pipe in pipe» “管中管”改造管道阴极保护防腐蚀安全效率的研究

Practice of Anticorrosive Protection Pub Date : 2020-03-01 DOI: 10.31615/j.corros.prot.2020.95.1-1

S. Nikulin, R. Aginey, Viktor A. Seredenok

{"title":"Research of efficiency of security of cathodic protection from corrosion for pipelines prepared for reconstruction with method «pipe in pipe»","authors":"S. Nikulin, R. Aginey, Viktor A. Seredenok","doi":"10.31615/j.corros.prot.2020.95.1-1","DOIUrl":"https://doi.org/10.31615/j.corros.prot.2020.95.1-1","url":null,"abstract":"The questions of organization of cathodic protection against corrosion of pipelines laid by the «pipe in pipe» method are considered. The variants of the organization of the cathodic corrosion system for pipelines laid by this method are determined. A laboratory stand simulating a pipe-in-pipe gasket with the installation of coppersulphate electrodes of comparison of small size between the pipes has been prepared. Laboratory studies to verify the protection of the main pipeline under various schemes of organization of cathodic corrosion protection were carried out. The conditions that must be observed when laying the pipeline to ensure the operation of the cathodic protection system, the main ones are the presence of electrolyte in the medium between the pipelines, as well as the absence of direct electrical contact between the pipelines. Negative features of joint protection of both pipelines are revealed. The optimal schemes of organization of cathodic corrosion protection during pipeline laying by this method, which are schemes with the use of extended anode grounding between pipelines or schemes without cathodic protection of external pipe, are determined. Solutions are proposed to eliminate the «failure» of the protective potential in contact with the metal between the pipelines, which consists in laying an extended anode grounding and local displacement of the potential of the internal pipeline relative to the external one.","PeriodicalId":20323,"journal":{"name":"Practice of Anticorrosive Protection","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74109086","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

Morphology and chemical composition of composite electrochemical coatings Zn-Al2O3 and Zn-PTFE Zn-Al2O3和Zn-PTFE复合电化学镀层的形貌和化学成分

Practice of Anticorrosive Protection Pub Date : 2020-03-01 DOI: 10.31615/j.corros.prot.2020.95.1-8

I. G. Botryakova, A. Aliev, N. A. Polyakov

{"title":"Morphology and chemical composition of composite electrochemical coatings Zn-Al2O3 and Zn-PTFE","authors":"I. G. Botryakova, A. Aliev, N. A. Polyakov","doi":"10.31615/j.corros.prot.2020.95.1-8","DOIUrl":"https://doi.org/10.31615/j.corros.prot.2020.95.1-8","url":null,"abstract":"The effect is studied of addition of hydrophilic aluminum oxide and hydrophobic polytetrafluoroethylene on the morphology and chemical composition of zinc coatings from acidic electrolytes. Inclusion of hydrophobic polytetrafluoroethylene particles into zinc coatings from acidic zinc electrolytes in the absence of any surfactants is more facilitated than that of hydrophilic aluminum oxide particles of various dispersion and phase composition. The formation of composite electrochemical Zn-Al2O3 and Zn-polytetrafluoroethylene coatings is determined by the state of the surface of the growing zinc deposit (its comparative hydrophobicity) that facilitates the adhesion of hydrophobic polytetrafluoroethylene particles. Addition of aluminum oxide particles into the electrolyte causes no fundamental changes in the overall surface morphology of the zinc deposits. However, a relatively large number of inclusions of aggregates of nanosized aluminum oxide particles are observed over the entire coating surface. The concentration of aluminum oxide inclusions in Zn-Al2O3 composite coatings reaches 5...7 wt.%. The surface of Zn-polytetrafluoroethylene deposit is represented by globules. The total polytetrafluoroethylene content in the obtained composite coatings reaches 30 wt.%. An increased oxygen content is found in such coatings. It is probably explained by formation of a relatively larger amount of surface zinc oxide due to the significant development of the surface morphology of the deposits.","PeriodicalId":20323,"journal":{"name":"Practice of Anticorrosive Protection","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76602261","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

Corrosion of the inner surface of the tanks with sulfurous oil and pyrophoric properties of formed deposits 含硫油对储罐内表面的腐蚀和形成的沉积物的焦性

Practice of Anticorrosive Protection Pub Date : 2020-03-01 DOI: 10.31615/j.corros.prot.2020.95.1-6

I. Begishev, I. Reformatskaya, A. Podobayev, I. I. Ascheulova

引用次数: 0

The technology of modeling thermal zones and corridors of the city breeze in a megacity (using the geoecological framework of Moscow as an example) 特大城市热区和城市风廊的建模技术(以莫斯科的地质生态框架为例)

Practice of Anticorrosive Protection Pub Date : 2020-03-01 DOI: 10.31615/j.corros.prot.2020.95.1-5

D. Markelov, N. Mineeva, A. Akolzin, B. Kochurov, M. Grigorieva, E. A. Chukmasova

{"title":"The technology of modeling thermal zones and corridors of the city breeze in a megacity (using the geoecological framework of Moscow as an example)","authors":"D. Markelov, N. Mineeva, A. Akolzin, B. Kochurov, M. Grigorieva, E. A. Chukmasova","doi":"10.31615/j.corros.prot.2020.95.1-5","DOIUrl":"https://doi.org/10.31615/j.corros.prot.2020.95.1-5","url":null,"abstract":"The cartographic image of space is represented by a mosaic of halos of the characteristics of the natural framework. The recognition of the characteristics is become an urgent task of any environmental management, both for the purpose of protecting objects and preventing damage from damaging factors such as corrosion. Any natural-technogenic complex is an interconnected functioning paragenetic geosystem, namely, “natural framework – technogenic constructions – heat capacity – wind flow – humidity-biological effect – chemical reactions (corrosion) – cartographic image”. A city is a functioning anthropogenically transformed geosystem in which flows or corridors are involved, barriers are formed that repel and attract flows, and a thermal cushion is formed at different heights. The dynamics, mechanism, factors and patterns of development of dangerous natural and technologically natural processes, the forecast of their development to ensure environmental safety is carried out by “technologies at a glance” or technologies of the geographical industry, built on the principle of recognition or indication. The basis of the methodology is the provision on the city breeze, a phenomenon that causes the compensating movement of air flows in the surface layers of the atmosphere from the outskirts of the city to the center along the corridors for air movement, such as, river valleys, ravine-beam network, radial transport and engineering communications (railway, highways, power lines). The principle of thermogradient, as the driving force of air exchange in a metropolis, becomes the main indicator of determining the paths in the geo-ecological framework on the territory’s photo portrait: an aerial photograph, map, photograph, which forms the basis of “technologies at a glance”.","PeriodicalId":20323,"journal":{"name":"Practice of Anticorrosive Protection","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83717089","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

Aminomethoxy derivatives of norbornenylmethanol as biocorrosion inhibitors 降冰片烯基甲醇的氨基甲氧基衍生物作为生物缓蚀剂

Practice of Anticorrosive Protection Pub Date : 2020-03-01 DOI: 10.31615/j.corros.prot.2020.95.1-4

G. E. Hajiyeva

{"title":"Aminomethoxy derivatives of norbornenylmethanol as biocorrosion inhibitors","authors":"G. E. Hajiyeva","doi":"10.31615/j.corros.prot.2020.95.1-4","DOIUrl":"https://doi.org/10.31615/j.corros.prot.2020.95.1-4","url":null,"abstract":"Norbornenylmethanol was synthesized by the reaction of cyclopentadiene and allyl alcohol, on the basis of which aminomethoxy derivatives of norbornenylmethanol were synthesized in the presence of formaldehyde and secondary amines by Mannich condensation. The yield of the target products was 43-71%. On the basis of 5-morpholinomethoxymethylbicyclo[2.2.1]-hept-2-ene and hexylbromide (1:1) in the presence of isopropyl alcohol, its complex was obtained. The physic-chemical properties of the synthesized compounds and the resulting complex were determined, their 1% solutions in isopropyl alcohol and 5% solution of 5-morpholinomethoxymethylbicyclo[2.2.1]-hept-2-ene were prepared. Their influence on the vital activity of sulfate-reducing bacteria of the type «Desulfovibrio desulfuricans» in three concentrations (5; 50; 100 mg/L) was studied. Bactericide inhibitors used in industry – AMDOR IK-7 and AMDOR IК-10 were taken as standards. It was determined that all the synthesized compounds and the resulting complex showed high bactericidal properties, moreover, compounds obtained on the basis of cyclic secondary amines showed a higher bactericidal effect against sulfate-reducing bacteria, unlike compounds obtained on the basis of aliphatic secondary amines. Considering that these aminomethoxy derivatives of norbornenylmethanol affect bacteria at very low concentrations, they can be proposed as effective inhibitors against sulfate-reducing bacteria.","PeriodicalId":20323,"journal":{"name":"Practice of Anticorrosive Protection","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74245615","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

Comparative analysis and application area of the main materials of anode groundbeds 阳极基床主要材料的对比分析及应用领域

Practice of Anticorrosive Protection Pub Date : 2020-03-01 DOI: 10.31615/j.corros.prot.2020.95.1-2

V. V. Pershukov

{"title":"Comparative analysis and application area of the main materials of anode groundbeds","authors":"V. V. Pershukov","doi":"10.31615/j.corros.prot.2020.95.1-2","DOIUrl":"https://doi.org/10.31615/j.corros.prot.2020.95.1-2","url":null,"abstract":"Anode groundbeds are intended for use as low-soluble elements of cathodic protection systems against corrosion of main pipelines and other underground metal structures. The classification of Anode groundbeds into deep, subsurface and extended ones indicates the features of their construction and the method of installation. At the time their application area is determined primarily by the material of the working electrode of the Anode groundbed. With the development of modern technologies, as well as the ability to purchase working elements for anodes on the world market, a large number of new Anode groundbeds from different materials have appeared. In this case, the declared technical characteristics of even the same type of materials from different manufacturers may vary greatly. This situation makes it difficult for design organizations and anti-corrosion protection specialists to select the most suitable Anode groundbeds for specific operating conditions. This article provides an analysis of the performance properties of the main materials of Anode groundbeds and, based on the limitations inherent in each material, provides the recommended area of their application. The materials such as mixed metal oxide (MMO), manganese dioxide, graphite, silicon iron alloy and magnetite are reviewed.","PeriodicalId":20323,"journal":{"name":"Practice of Anticorrosive Protection","volume":"383 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76317944","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

Evaluation of the protective efficiency of a volatile corrosion inhibitor of atmospheric corrosion of metals in the presence of aggressive micro impurities of air by impedance spectroscopy method 用阻抗谱法评价一种挥发性缓蚀剂在空气中腐蚀性微杂质存在时对金属大气腐蚀的保护效率

Practice of Anticorrosive Protection Pub Date : 2020-03-01 DOI: 10.31615/j.corros.prot.2020.95.1-3

V. Vigdorovich, L. Tsygankova, L. Knyazeva, N. Shel, A. Uryadnikov, A. V. Dorokhov, A. Dorokhova, O. Alekhina

{"title":"Evaluation of the protective efficiency of a volatile corrosion inhibitor of atmospheric corrosion of metals in the presence of aggressive micro impurities of air by impedance spectroscopy method","authors":"V. Vigdorovich, L. Tsygankova, L. Knyazeva, N. Shel, A. Uryadnikov, A. V. Dorokhov, A. Dorokhova, O. Alekhina","doi":"10.31615/j.corros.prot.2020.95.1-3","DOIUrl":"https://doi.org/10.31615/j.corros.prot.2020.95.1-3","url":null,"abstract":"The protective efficiency of the volatile IFHAN-114 corrosion inhibitor (VCI) was determined by impedance spectroscopy under atmospheric corrosion of St3 steel and copper in livestock buildings containing trace amounts of carbon dioxide, ammonia and hydrogen sulfide in the regulatory allowable concentrations. A 0.1 M NaCl solution was used as the background electrolyte. The effect of the combined presence of NH3 and CO2 corrosion stimulants of metals in the air was modeled by introducing (NH4)2CO3 in concentrations of 10 and 100 mg/L into the background solution. To simulate the combined presence of NH3 and H2S in air, equivalent amounts of Na2S and NH4Cl were introduced into the background electrolyte solution to obtain (NH4)2S (10 and 100 mg/L) at specified concentrations. This resulted in the hydrolysis of NH4+ and S2- ions to form NH4OH and H2S, which are stable in the surface phase film. According to impedance spectroscopy, (NH4)2CO3 at a concentration of 10 mg/L acts as an corrosion inhibitor of steel in a 0.1 M NaCl solution, and IFKHAN-114 (nonequivalent mixture of polyaniline with benzoic acid), introduced into the solution along with this amount of ammonium carbonate, plays the role of a corrosion stimulator. However, with an increase in the concentration of ammonium carbonate, its inhibitory effect is decreased, and for IFKHAN-114, introduced along with the salt, on the contrary, is appeared. A similar pattern is observed for the copper electrode. In the presence of (NH4)2S, almost the same effect of salt and VCI is observed for steel and copper, but with some variation. A comparison of the data obtained by gravimetric tests and impedance measurements showed that in the latter case only qualitative results can be obtained, although they undoubtedly confirm the presence of the inhibitory ability of IFKHAN-114 in a chloride neutral solution.","PeriodicalId":20323,"journal":{"name":"Practice of Anticorrosive Protection","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87054159","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 inhibition of steel corrosion in model pore liquid of the concrete by derivatives of phenol 苯酚衍生物对钢筋在混凝土模型孔隙液中的缓蚀作用

Practice of Anticorrosive Protection Pub Date : 2019-12-01 DOI: 10.31615/j.corros.prot.2019.94.4-2

I. A. Gedvillo, А.S. Zhmakina, N. Andreev

{"title":"The inhibition of steel corrosion in model pore liquid of the concrete by derivatives of phenol","authors":"I. A. Gedvillo, А.S. Zhmakina, N. Andreev","doi":"10.31615/j.corros.prot.2019.94.4-2","DOIUrl":"https://doi.org/10.31615/j.corros.prot.2019.94.4-2","url":null,"abstract":"In the course of corrosion tests, the protective properties of sodium nitrite and phenol derivatives in the electrolyte simulating a pore liquid of concrete contaminated with chlorides were compared. The experiments were carried out not only in hermetically sealed cells but also and in conditions of free access of air. It was found that in hermetically sealed cells phenol and resorcinol inhibit corrosion of steel, but significantly inferior to the protective ability of sodium nitrite. Hydroquinone protects steel more effectively than nitrite under conditions of limited oxygen access to metal. However, there is a significant deformation of plastic cells, which may be due to the absorption of oxygen, and the corresponding inhibition of the cathode process. With natural aeration of the model electrolyte hydroquinone in concentrations (1….2 g/l) inhibits the corrosion process in 2…8 times. In this case, the samples were covered with a gray film with a blue tint, but unlike nitrite, full protection of steel was not observed. Large concentrations of hydroquinone under these conditions significantly activate the corrosion of steel.","PeriodicalId":20323,"journal":{"name":"Practice of Anticorrosive Protection","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87445974","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

Synthesis of complexes of norborn-5-en-2-carboxylic acid amide with hexylchloride and studying of their bactericidal properties in biocorrosion process 诺生-5-烯-2-羧酸酰胺与己氯配合物的合成及其生物腐蚀杀菌性能研究

Practice of Anticorrosive Protection Pub Date : 2019-12-01 DOI: 10.31615/j.corros.prot.2019.94.4-5

V. Babayeva, E. H. Mamedbeyli, D. Agamaliyeva, A.R. Azizbeyli, N. Mamedova

{"title":"Synthesis of complexes of norborn-5-en-2-carboxylic acid amide with hexylchloride and studying of their bactericidal properties in biocorrosion process","authors":"V. Babayeva, E. H. Mamedbeyli, D. Agamaliyeva, A.R. Azizbeyli, N. Mamedova","doi":"10.31615/j.corros.prot.2019.94.4-5","DOIUrl":"https://doi.org/10.31615/j.corros.prot.2019.94.4-5","url":null,"abstract":"The synthesis of norborn-5-en-2-carboxylic acid by the reaction of cyclopentadiene with acrylic acid with 97% yield was carried out. Based on norborn-5-en-2-carboxylic acid and triethylenetetraamine, its amide was synthesized with 83% yield at a temperature of 130…140 °C during 2 h with escape of 1 mole of water. To obtain inorganic anionic complexes of amide of norborn-5-en-2-carboxylic acid at different ratios (1:1, 1:2, 1:3), alkyl halides, in particular hexylchloride, were used. Considering that the boiling point of hexylchloride is 135 °C, the reaction is mainly carried out in the temperature range of 50…60 °C for three hours with stirring. The physicchemical parameters of the compounds obtained and their complexes were determined. The structure and composition of the obtained substances were confirmed using IR- and 1H NMR spectroscopy. In order to study the antimicrobial activity of the obtained complexes, their aqueous solutions were prepared at three different concentrations (25; 50; 100 mg/l) and their effect on the vital activity of sulfate-reducing bacteria (SRB) was studied at a temperature of 30…32 °C for 7…14 days. It was established that complexes with hexylchloride at ratios of 1:1 and 1:2 at a concentration of 100 mg/l (A-25; A-26) exhibit a bactericide-inhibitory effect of 97…98%, and the complex at a ratio of 1:3 almost completely inhibits the growth of SRB (99.3%). It was revealed that the obtained complexes have a relatively higher antimicrobial activity against SRB than industrial bactericide inhibitors AMDOR-IR-7 (standard) and AMDOR-IR-10 (standard). On the basis of the conducted studies, it was established that the complexes synthesized on the basis of alkylamides completely inhibit the growth of SRB at much lower concentrations compared to the industrially used bactericide inhibitors AMDORIR-7 and AMDOR-IR-10 (at a concentration of 25 mg/l 92…96% opposite 40%).","PeriodicalId":20323,"journal":{"name":"Practice of Anticorrosive Protection","volume":"89 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84392312","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

Geoecological frame of the megalopolis – landscape-zonal standard of sustainable development of geosystems 特大城市的地质生态框架——地质系统可持续发展的景观地带性标准

Practice of Anticorrosive Protection Pub Date : 2019-12-01 DOI: 10.31615/j.corros.prot.2019.94.4-4

D. Markelov, N. Mineeva, A. Akolzin, B. Kochurov, M. Grigorieva, E. A. Chukmasova

{"title":"Geoecological frame of the megalopolis – landscape-zonal standard of sustainable development of geosystems","authors":"D. Markelov, N. Mineeva, A. Akolzin, B. Kochurov, M. Grigorieva, E. A. Chukmasova","doi":"10.31615/j.corros.prot.2019.94.4-4","DOIUrl":"https://doi.org/10.31615/j.corros.prot.2019.94.4-4","url":null,"abstract":"The natural-man-made complex is an interconnected paragenetic geosystem that functions: “natural skeleto – technogenic structures – heat capacity – wind flow – moisture – biological effects – chemical reactions (corrosion) – a cartographic image”. The ghosting characteristics of a natural framework, as a cartographic image of space, serve as indicators and guide marks for making decisions in environmental management in order to protect objects and prevent damage from damaging factors, such as corrosion. Sustainable functioning of the geosystem ensures environmental safety and reliability of any territory and structure. The methodology for assessing the geoecological framework of the territory is substantiated and the analysis of the influence of anthropogenically transformed geosystems is performed. Diagnostics of the ecological state of an object or territory is aimed at establishing a deviation from the “norm”, a typical state of the structure and organization of geosystems. The basis of any diagnosis is the availability of a database of etalons, norms or standards.","PeriodicalId":20323,"journal":{"name":"Practice of Anticorrosive Protection","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78692780","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