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Assessing the corrosion protection property of coatings loaded with corrosion inhibitors using the real-time atmospheric corrosion monitoring technique

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 119-126页

作者： Xiaoxue wang Lulu Jin Jinke wang Rongqiao wang Xiuchun Liu Kai gao Jingli Sun Yong Yuan Lingwei Ma Hongchang Qian Dawei Zhang School of Energy and Power Engineering Beihang UniversityBeijing 100191China Beijing Institute of Space Long March Vehicle Beijing 100076China National Materials Corrosion and Protection Data Center University of Science and Technology BeijingBeijing 100083China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China Shanghai Spaceflight Precision Machinery Institute Shanghai 201600China

The atmospheric corrosion monitoring(ACM)technique has been widely employed to track the real-time corrosion behavior of metal ***,limited studies have applied ACM to the corrosion protection properties of organic *** study compared a bare epoxy coating with one containing zinc phosphate corrosion inhibitors,both applied on ACM sensors,to observe their corrosion protection properties over *** with artificial damage via scratches were exposed to immersion and alternating dry and wet environments,which allowed for monitoring galvanic corrosion currents in *** the corrosion tests,the ACM currents of the zinc phosphate/epoxy coating were considerably lower than those of the blank epoxy *** trend in ACM current variations closely matched the results obtained from regular electrochemical tests and surface *** alignment highlights the potential of the ACM technique in evaluating the corrosion protection capabilities of organic *** with the blank epoxy coating,the zinc phosphate/epoxy coating showed much-decreased ACM current values that confirmed the effective inhibition of zinc phosphate against steel corrosion beneath the damaged coating.

关键词： atmospheric corrosion monitoring technology corrosion inhibitor coating carbon steel corrosion protection

The Mechanism of Heating Rate on the Secondary Recrystallization Evolution in Grain Oriented Silicon Steel

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 275-282页

作者： gao Qian LI Jun wang Xianhui CAO Laifu GONG Jian LI Bo Central Iron and Steel Research Institute Group Beijing 100081China Shougang Zhixin Electromagnetic Material R&D(Beijing)Co. Ltd.Beijing 101300China Beijing Shougang Co. Ltd.Qian’an 064404China

Grain-oriented silicon steels were prepared at different heating rates during high temperature annealing,in which the evolution of magnetic properties,grain orientations and precipitates were *** illustrate the Zener factor,the diameter and number density of precipitates of interrupted testing samples were statistically *** effect of precipitate ripening on the Goss texture and magnetic property was *** indicated that the trend of Zener factor was similar under different heating rates,first increasing and then decreasing,and that the precipitate maturing was greatly inhibited as the heating rate *** recrystallization was developed at the temperature of 1010℃when a heating rate of 5℃/h was used,resulting in Goss,Brass and{110}oriented grains growing abnormally and a magnetic induction intensity of ***,increasing the heating rate to 20℃/h would inhibit the development of undesirable oriented grains and obtain a sharp Goss ***,when the heating rate was extremely fast,such as 40℃/h,poor secondary recrystallization was developed with many island grains,corresponding to a decrease in magnetic induction intensity to 1.87 *** a suitable heating rate of 20℃/h,the sharpest Goss texture and the highest magnetic induction of 1.94 T with an onset secondary recrystallization temperature of 1020℃were found among the experimental variables in this *** heating rate affected the initial temperature of secondary recrystallization by controlling the maturation of precipitates,leading to the deviation and dispersion of Goss texture,thereby reducing the magnetic properties.

关键词： high temperature annealing heating rate secondary recrystallization grain oriented silicon steel

Relationship between mismatch repair protein, RAS, BRAF, PIK3CA gene expression and clinicopathological characteristics in elderly colorectal cancer patients

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World Journal of Clinical Cases 2021年第11期9卷 2458-2468页

作者： Jun-Zhen Fan gao-Fei wang Xue-Bin Cheng Zhou-Huan Dong Xin Chen Yu-Jiao Deng Xin Song Department of Pathology First Medical CenterChinese People's Liberation Army General HospitalBeijing 100853China Department of Ultrasound First Medical CenterChinese People's Liberation Army General HospitalBeijing 100853China

BACKGROUND Colorectal cancer(CRC)is common in elderly *** repair(MMR)protein deletion is one of the causes of *** RAS(KRAS/NRAS),BRAF,and PIK3CA genes are important gene targets in CRC treatment and are closely related to the prognosis and survival of ***,little is known regarding the relationship between the expression of MMR,RAS,BRAF,PIK3CA and the clinicopathological features in CRC *** To analyze the relationship between the expression of MMR,RAS,BRAF,PIK3CA and the clinicopathological features in *** A total of 327 elderly patients with CRC were enrolled,and immunohistochemistry was used to detect the MMR ***-time quantitative polymerase chain reaction was used to detect the RAS(KRAS/NRAS),BRAF,and PIK3CA *** clinicopathological data of the patients were recorded and analyzed by SPSS 19.0 statistical *** In 327 elderly patients with CRC,the rate of MMR protein loss was 9.79%(32/327),and the deletion rate of four MMR proteins(MSH2,MSH6,MLH1,PMS2)was 1.83%(6/327),3.06%(10/327),7.65%(25/327),and 7.65%(25/327),*** were no significant differences between MMR protein deletion and sex,pathological type,tumor morphology,differentiation degree or lymph node metastasis(P>0.05),but there was a significant difference between MMR protein deletion and tumor diameter and tumor location(P=0.048/P=0.000).The mutation rates of the KRAS,NRAS,BRAF and PIK3CA genes in elderly CRC patients were 44.95%(147/327),2.45%(8/327),3.36%(11/327)and 2.75%(9/327),respectively;the KRAS gene mutation was closely related to tumor morphology(P=0.002)but not to other clinicopathological features(P>0.05),and there were no significant differences between NRAS gene mutation and clinicopathological features(P>0.05).The BRAF gene mutation showed a significant difference in pathological type,tumor location,differentiation degree and lymph node metastasis(P<0.05),but was not correlated with sex,tumor size and tumor

关键词： Elderly patients Colorectal cancer Mismatch repair protein Gene mutation Expression Diagnosis

In Search of the Ancestors of Chinese People

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Bulletin of the Chinese Academy of Sciences 2010年第2期24卷 111-114页

作者： gao Xing wang Chunxue Institute of Vertebrate Paleontology and Paleoanthropology CAS Beijing 100044 China

Presently, the research on the origin of Chinese ancestors focuses on two issues , namely the origin of the first human populations in Asia

关键词：现代中国人祖先搜索古生物化石起源能人

Comparison of Stretta procedure and toupet fundoplication for gastroesophageal reflux disease-related extra-esophageal symptoms

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World Journal of Gastroenterology 2015年第45期21卷 12882-12887页

作者： Chao Yan Wei-Tao Liang Zhong-gao wang Zhi-Wei Hu Ji-Min Wu Chao Zhang Mei-Ping Chen Department of Gastroesophageal Reflux Disease Second Artillery General Hospital of Chinese People’s Liberation Army Department of Vascular Surgery Xuan Wu Hospital Capital Medical University

AIM: To compare the outcomes between the Stretta procedure and laparoscopic toupet fundoplication(LTF) in patients with gastroesophageal reflux disease(GERD)-related extra-esophageal ***: From January 2011 to February 2012, a total of 98 patients diagnosed with GERD-related extra-esophageal symptoms who met the inclusion criteria were enrolled in this study. All patients who either underwent the Stretta procedure or LTF treatment have now completed the 3-year follow-up. Primary outcome measures, including frequency and severity of extra-esophageal symptoms, proton pump inhibitor(PPI) use, satisfaction, and postoperative complications, were assessed. The results of the Stretta procedure and LTF therapy were analyzed and ***: There were 47 patients in the Stretta group and 51 patients in the LTF group. Ninety patients were available at the 3-year follow-up. The total of the frequency and severity scores for every symptom improved in both groups(P 0.05). However, the score for globus hysterics was different between the Stretta group and the LTF group(4.9 ± 2.24 vs 3.2 ± 2.63, P < 0.05). After the Stretta procedure and LTF treatment, 29 and 33 patients in each group achieved PPI therapy independence(61.7% vs 64.7%, P = 0.835). The patients in the LTF group were more satisfied with their quality of life than those in the Stretta procedure group(P < 0.05). Most complications resolved without intervention within two weeks; however, two patients in the LTF group still suffered from severe dysphagia 2 wk after the operation, and it improved after bougie dilation treatment in both ***: The Stretta procedure and LTF were both safe and effective for the control of GERD-related extra-esophageal symptoms and the reduction of PPI use.

关键词： Gastroesophageal reflux disease Extraesophageal sy

Polymorphism of OAS2 rs739901 C/A Involves the Susceptibility to EV71 Infection in Chinese Children

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Current Medical Science 2018年第4期38卷 640-647页

作者： Yu-xia TAN Hui wang Hua LV Pei-pei LIU Shun-gang XIA Yu wang gao-yan wang Ya GUO Ye-dan LIU Cheng-qing YANG Li-ping CHEN Zong-bo CHEN Department of Pediatrics the Affiliated Hospital of Qingdao University Qingdao 266000 China Department of Pediatrics Zibo Maternal and Child Health Hospital Zibo 255029 China Department of Clinical Laboratory the Affiliated Hospital of Qingdao University Qingdao 266003 China

This study aimed to assess the relationship of OAS2 rs739901 5＇-flanking C/A polymorphisms with the susceptibility to Enterovirus-71 （EV71） infection. We investigated 294 hand-foot-mouth disease （HFMD） Chinese children with EV71 infection （165 mild cases and 129 encephalitis cases）. The improved multiplex ligation detection reaction （iMLDR） technique was used to test the genotypes. In EV71-infected patients, the CA genotype distribution （P=0.007）, A allele frequency （OR 1.32, 95% CI 1.0-1.7, P=0.034） and CA＋AA carriage frequency （P=0.003） of OAS2 rs739901 5＇-flanking were obviously elevated as compared with controls, but there were no statistically significant differences between mild cases and encephalitis cases. In EV71-infected patients, the counts of white blood cells （P=0.034） and blood glucose concentrations （P=0.042） were raised in A carriers （CA＋AA）. Among different genotypes of encephalitis cases, the contents of cerebrospinal fluid （CSF） showed no significant differences. IFN-7 levels in EV71-infected patients were higher than those in controls （mild group vs. control group, P〈0.01; encephalitis group vs. control group, P〈0.001）. In encephalitis cases, IFN-7 levels were reduced （P〈0.05） in A carriers compared to CC genotype, however, there were no significant differences between genotypes CA and AA （ P=0.226）. These findings suggest that OAS2 rs739901 5＇-flanking C/A genetic polymorphisms involve the susceptibility to EV71 infection, and A allele might be a risk factor of the susceptibility to EV-71 infection.

关键词： enterovirus-71 infection OAS2 rs739901 C/A polymorphism

Subsoiling and Ridge Tillage Alleviate the High Temperature Stress in Spring Maize in the North China Plain

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Journal of Integrative Agriculture 2013年第12期12卷 2179-2188页

作者： TAO Zhi-qiang SUI Peng CHEN Yuan-quan LI Chao NIE Zi-jin YUAN Shu-fen SHI Jiang-tao gao wang-sheng College of Agronomy and Biotechnology China Agricultural University Wuqiao Experimental Station China Agricultural University

High temperature stress（HTS） on spring maize（Zea mays L.） during the filling stage is the key factor that limits the yield increase in the North China Plain（NCP）.Subsoiling（SS） and ridge tillage（R） were introduced to enhance the ability of spring maize to resist HTS during the filling *** field experiments were conducted during the 2011 and 2012 maize growing seasons at Wuqiao County,Hebei Province,*** with rotary tillage（RT）,the net photosynthetic rate,stomatal conductance,transpiration rate,and chlorophyll relative content（SPAD） of maize leaves was increased by 40.0,42.6,12.8,and 29.7% under SS,and increased by 20.4,20.0,5.4,and 14.2% under R,***,the treatments reduce the intercellular CO 2 concentration under *** SS and R treatments increased the relative water content（RWC） by 11.9 and 6.2%,and the water use efficiency（WUE） by 24.3 and 14.3%,respectively,compared with *** SS treatment increased the root length density and soil moisture in the 0-80 cm soil profile,whereas the R treatment increased the root length density and soil moisture in the 0-40 cm soil profile compared with the RT *** with 2011,the number of days with temperatures 33°C was more 2 d and the mean day temperature was higher 0.9°C than that in 2012,whereas the plant yield decreased by 2.5,8.5 and 10.9%,the net photosynthetic rate reduced by 7.5,10.5 and 18.0%,the RWC reduced by 3.9,5.6 and 6.2%,and the WUE at leaf level reduced by 1.8,5.2 and 13.1% in the SS,R and RT treatments,*** the root length density and the soil moisture also decreased at different *** yield,photosynthetic rate,plant water status,root length density,and soil moisture under the SS and R treatments declined less than that under the RT *** results indicated that SS and R can enhance the HTS resistance of spring maize during the filling stage,and led to higher yield by directly improving soil moisture and root growth and indirectly improving

关键词： high temperature stress spring maize filling stage subsoiling ridge tillage

Structure and Photoluminescence of Mullite-Ge Nanocomposite

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Journal of Wuhan University of Technology(Materials Science) 2008年第6期23卷 787-790页

作者：高乐王皓 State Key Lab of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Al12Si3.75Ge0.25O26 ceramic powder was prepared by sol-gel method using Al（NO3）3,Si（OC2H5）4 and Cl3GeCH2-CH2COOH as *** structural formation of Al12Si3.75Ge0.25O26 ceramic powder was analyzed by *** reduction by flowing H2/Ar mixture gas,strong room temperature photoluminescence （PL） can be observed at 565 nm,613 nm,682 nm,731 nm and 777 nm,*** PL intensity scarcely depends on the reduction temperature and duration,while the sample reduced at 500 ℃ for A^3 hours has the highest PL *** and after reduction at 500 ℃,the volume of unit cell of mullite solid solution decreases to 0.4699 *** on the analysis of XPS and Raman spectra,it can be approved that the PL phenomenon at room temperature is caused by the embedded Ge nanoparticles with the average size of about 1.95 nm.

关键词： mullite solid solution sol-gel Ge nanoparticles photoluminescence

3 - 17 Molecular Dynamic Simulation of Cu Segregation at Fe Grain Boundary

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IMP & HIRFL Annual Report 2012年第1期 105-106页

作者： wang Dong gao Ning wang Zhiguang