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Liu, Kaihua,Choi, Hong Je,Kim, Byeong Kon,Kim, Da Bin,Han, Chan Su,Kim, Seung Won,Kang, Han Byul,Park, Jin-Woo,Cho, Yong Soo Elsevier 2018 Composites science and technology Vol.168 No.-
<P><B>Abstract</B></P> <P>Piezoelectric composite structures have been studied to optimize energy harvesting and charging performance. Here, a specific piezoelectric composition of 0.4Pb(Zn<SUB>1/3</SUB>Nb<SUB>2/3</SUB>)O<SUB>3</SUB>–0.6Pb(Zr<SUB>0.5</SUB>Ti<SUB>0.5</SUB>)O<SUB>3</SUB> (PZN–PZT) has been selected for better energy harvesting performance. Different contents of PZN-PZT nanoparticles of ∼54 nm were embedded into a matrix of poly(vinylidene fluoride–trifluoroethylene) [P(VDF–TrFE)] by a single electrospinning process. The single-phase perovskite nanoparticles were initially prepared by combustion synthesis with the assistance of polyacrylic acid (PAA) as a fuel. The enhanced energy harvesting performance of flexible composite nanogenerators was ascertained by exhibiting ∼3.4 V output voltage and ∼240 nA output current for the 20 vol% nanoparticles-incorporated single sheet. The charging capability was found to be enhanced by designing the stacked nanofiber composite sheets in series, suggesting that the rate of charging and the saturation voltage are dependent on the number of composite sheets in series. For instance, the double stacked sheets exhibited a ∼5.7 V charging capability within ∼150 s.</P>
Li, Da-Ke,Han, Jing,Liu, Ji-Bin,Jin, Guang-Fu,Qu, Jun-Wei,Zhu, Meng,Wang, Yan-Ru,Jiang, Jie,Ma, Hong-Xia Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.1
A recent study summarized several published genome-wide association studies (GWASs) of cancer and reported two pleiotropic loci at 6p21.1 and 7p15.3 contributing to multiple cancers including lung cancer, noncardia gastric cancer (NCGC), and esophageal squamous-cell carcinoma (ESCC) in Han Chinese. However, it is not known whether such genetic variants have similar effects on the risk of gynecologic cancers, such as ovarian cancer. Hence, we explored associations between genetic variants in 6p21.1 and 7p15.3 and ovarian cancer risk in Han Chinese women. We performed an independent case-control study by genotyping the two loci (rs2494938 A > G at 6p21.1 and rs2285947 A > G at 7p15.3) in a total of 377 ovarian cancer cases and 1,034 cancer-free controls using TaqMan allelic discrimination assay. We found that rs2285947 at 7p15.3 was significantly associated with risk of ovarian cancer with per allele odds ratio (OR) of 1.33 [95% confidence interval (CI): 1.08-1.64, P=0.008]. However, no significant association was observed between rs2494938 and ovarian cancer risk. Our results showed that rs2285947 at 7p15.3 may also contribute to the development of ovarian cancer in Han Chinese women, further suggesting pleiotropy of 7p15.3 in multiple cancers.
Common Genetic Variations in the MUC5AC Gene are Not Related to Helicobacter pylori Serologic Status
Zhou, Cheng-Jiang,Zhang, Liu-Wei,Gao, Fang,Zhang, Bin,Wang, Ying,Chen, Da-Fang,Jia, Yan-Bin Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.24
Several lines of evidence suggest that MUC5AC genetic polymorphisms might confer susceptibility to H. pylori infection and therefore gastric cancer risk. We here assessed the association of common polymorphisms in the MUC5AC gene with H. pylori seroprevalence using an LD-based tagSNP approach in a north-western Chinese Han population. A total of 12 tagSNPs were successfully genotyped among 281 unrelated ethnic Han Chinese who had no cancer history, and no identifiable gastric disease or genetic disease. No significant association between any alleles, genotypes or haplotypes and H. pylori seroprevalence was observed. Our results suggest that common genetic variations in MUC5AC gene might not make a major contribution to the risk of H. pylori infection.
Zhou, Cheng-Jiang,Zhang, Liu-Wei,Gao, Fang,Zhang, Bin,Wang, Ying,Chen, Da-Fang,Jia, Yan-Bin Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.10
Several lines of evidence suggest that genetic variation in MUC5AC gene might contribute to the risk of gastric cancer. We conducted a case-control study to evaluate the relationship between common genetic variations in MUC5AC gene and non-cardia gastric cancer using an LD-based tagSNP approach in Baotou, north-western China. We genotyped 12 tagSNPs by TaqMan method among 288 cases with non-cardia gastric cancer and 281 normal controls. Unconditional logistic regression was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs) for non-cardia gastric cancer risk in association with alleles, genotypes and haplotypes. We observed that the frequencies of rs3793964 C allele and rs11040869 A allele were significantly lower in cases than in controls. Meanwhile, minor allele homozygotes of rs3793964 and rs11040869 were significantly associated with a decreased risk of non-cardia gastric cancer when compared with their major allele homozygotes. Furthermore, a statistically significantly protective effect of rs885454 genotypes on non-cardia gastric cancer was also observed (for CT vs. CC: OR=0.581, 95%CI=0.408-0.829; for CT/TT vs. CC: OR=0.623, 95%CI=0.451-0.884). Our results indicated that some common genetic variations in the MUC5AC gene might have effects on the risk of non-cardia gastric cancer in our studied population.
Menglong Wang,Lan Jiang,Qingen Da,Jun Liu,Dongru Feng,Jinfa Wang,Hong-Bin Wang,Hong-Lei Jin 한국식물학회 2017 Journal of Plant Biology Vol.60 No.6
Plastid-encoded plastid RNA polymerase (PEP) isessential for chloroplast development and plastid geneexpression in Arabidopsis thaliana. However, PEP is a largecomplex, and many proteins in this complex remain to beidentified. We previously reported that Delayed Greening238 (DG238) interacts with PEP subunit protein FLN1 andmay function as a PEP-associated protein and participate inearly chloroplast development and PEP-dependent plastidgene expression. DG238 contains Domain of UnknownFunction 143 (DUF143), whose function is currently unknown. Here, we found that a deficiency of the DUF143 domain inDG238 affected its localization, which resulted in abnormalinteractions with PEP-associated proteins in the chloroplast. Furthermore, DG238 lacking the DUF143 domain or DG238with only this domain failed to function. Interestingly, thelack of conserved amino acids 193–217 of the DUF143domain in DG238 also affected its function. In addition toFLN1, DG238 also interacts with other PEP-associatedproteins, including FSD2, FSD3, MRL7-L, and MRL7, toregulate plastid gene expression. These results suggest thatthe DUF143 domain is necessary for the functioning of thePEP-associated protein DG238 in chloroplasts.
Microstructures and nano mechanical properties of the metal tungsten film
Zhu Li-na,Li Guo-lu,Wang Hai-dou,Xu Bin-shi,Zhuang Da-ming,Liu Jia-jun 한국물리학회 2009 Current Applied Physics Vol.9 No.3
The W film was prepared on 1045 steel by magnetron sputtering, with the thickness of 2 ㎛, its surface and cross-section morphologies were investigated with SEM, and the phase structure was analyzed with XRD. X-ray stress determinator was utilized to measure its residual stress, and the nano-hardness and elastic modulus of the film were surveyed by nano-indentation tester. The results show that the surface of W film is very compact and smooth; the particles arranged regularly, the granularity of the thin film is about 1 ㎛. The microcracks, cavities and desquamation were not found in the film and interface, and the bonding between the W film and substrate is well. The XRD results showed that the W film had a body-centered cubic structure, the lattice constant: ɑ = 0.316 nm, the growth preferred orientations are (110) and (220). The compressive stress (-169 MPa) was found on the surface. The average nano-hardness and elastic modulus of W film are 15.22 GPa, 176.64 GPa, respectively, and the mechanical properties of W film are well. The W film was prepared on 1045 steel by magnetron sputtering, with the thickness of 2 ㎛, its surface and cross-section morphologies were investigated with SEM, and the phase structure was analyzed with XRD. X-ray stress determinator was utilized to measure its residual stress, and the nano-hardness and elastic modulus of the film were surveyed by nano-indentation tester. The results show that the surface of W film is very compact and smooth; the particles arranged regularly, the granularity of the thin film is about 1 ㎛. The microcracks, cavities and desquamation were not found in the film and interface, and the bonding between the W film and substrate is well. The XRD results showed that the W film had a body-centered cubic structure, the lattice constant: ɑ = 0.316 nm, the growth preferred orientations are (110) and (220). The compressive stress (-169 MPa) was found on the surface. The average nano-hardness and elastic modulus of W film are 15.22 GPa, 176.64 GPa, respectively, and the mechanical properties of W film are well.