KCl flux-assisted CaTiO3: Pr3+ red phosphors for temperature sensing

Xin Liu,Xiuying Tian,Huiyan Sheng,Changyan Ji,Zhi Huang,Jin Wen,Hongxia Peng,Ling Zhu,Jing Li,Ping Liu,Yangxi Peng,Guowen Li 한양대학교 청정에너지연구소 2024 Journal of Ceramic Processing Research Vol.25 No.2

The red CaTiO3: Pr3+ phosphors were fabricated by employing a solid-state method using KCl flux, and investigated fortemperature sensing. There were no structural changes observed with increasing KCl concentration, and no impuritieswere detected. The obtained crystal structure was identified as an orthorhombic perovskite, belonging to space group ofPnma(62). The typical sample exhibited spherical particles (1-2 μm). The optical bandgap of the sample was measured to beapproximately 3.62 eV. Notably, when the KCl concentration reached 3%, the sample exhibited the highest photoluminescenceintensity, indicating excellent crystallization strength. They closely resembled the chromaticity coordinates of ideal red lightbased on CIE chromaticity diagram, and the color purity was determined to be 79.51%. Furthermore, the absolute sensitivity(Sa) was approximately as high as 0.148 K-1, while the relative sensitivity (Sr) reached approximately a high value of 6.57% K-1,which highlights the significant potential of optical thermometry.

A Study on method of designing developable surface

Ji-xin YANG,Zhe LIU,Jian LIU 한국멀티미디어학회 2006 한국멀티미디어학회 국제학술대회 Vol.2006 No.-

The paper deals with the principle of envelope of a one-parameter plane family to design developable surface. Three methods of designing developable surface are presented. They are designing a developable surface based on one curve on it and its normal line, designing a developable surface based on two curves on it and designing a developable surface based on one curve and one surface. They meet the requirements of engineering fields.

Distinctions Between Clinicopathological Factors and Prognosis of Alpha-fetoprotein Negative and Positive Hepatocelluar Carcinoma Patients

Xu, Jia,Liu, Chang,Zhou, Lei,Tian, Feng,Tai, Ming-Hui,Wei, Ji-Chao,Qu, Kai,Meng, Fan-Di,Zhang, Ling-Qiang,Wang, Zhi-Xin,Zhang, Jing-Yao,Chang, Hu-Lin,Liu, Si-Nan,Xu, Xin-Shen,Song, Yan-Zhou,Liu, Jun,Z Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.2

Serum alpha-fetoprotein (AFP) is a significant marker for clinical diagnosis and prognosis evaluation in hepatocellular carcinoma (HCC) patients. However, some proportion of liver cancer patients are AFP-negative (AFP ${\leq}$20ng/ml). In order to study the differences between clinicopathological factors and prognosis of alpha-fetoprotein negative and positive patients, a total of 114 cases (41 AFP-negative and 73 AFP-positive) were selected for our research. By systematically statistical analysis, the results demonstrated that compared with AFP-negative patients, AFP-positive examples were more likely to feature cirrhosis nodules, non-complete neoplasm capsules, and a poor Edmondson-steiner grade. Furthermore, AFP-negative patients demonstrated a favorable long-term prognosis. By univariate analysis and multivariate analysis with Cox's proportional hazards model, multiple tumors were found to be independent risk factors for worse survival of AFP negative patients; however, less tumor-free margins, multiple tumors and Edmondson-steiner grades III/IV, proved to be independent risk factors leading to a poor prognosis of AFP positive cases. Finally, we can infer that high levels of AFP signify a highly malignant tumor and unfavorable prognosis.

Adaptive polymorphism of tetrameric alpha-amylase inhibitors in wild emmer wheat

Ji-Rui Wang,Mei Deng,Ya-Xi Liu,Xin Qiao,Zhen-Hong Chen,Qian-Tao Jiang,Zhi-En Pu,Yu-Ming Wei,Eviatar Nevo,You-Liang Zheng 한국유전학회 2011 Genes & Genomics Vol.33 No.4

α-Amylase inhibitors are attractive candidates for the control of seed weevils as these insects are highly dependent on starch as an energy source. Wheat tetrameric α-amylase inhibitor (WTAI) is a mixture (60 kDa) of 3 units: WTAI-CM2 plus 2 WTAI-CM3 plus WTAI-CM16, where none of the subunits is active on its own. A total of 334 gene sequences were obtained from 14 populations (131 accessions= genotypes) of wild emmer wheat. The frequencies of SNPs in WTAI-CM2,WTAI-CM3 and WTAI-CM16 were 1 out of 87.6, 101.4, and 108.0 bases, where 5, 5 and 4 SNPs were detected in the coding sequence, respectively. The nucleotide sequence of each unit of tetrameric α-amylase inhibitors were much more conserved than that of dimeric or monomeric inhibitors. The wild emmer wheat populations showed diversity on three WTAI loci,both between and within populations. It was revealed that WTAI were naturally selected for across populations by a ratio of dN/dS as expected. The results of purifying and positive selection hypothesis (p<0.05) also showed that the sequences of WTAI were contributed by natural selection, which ensures the protein function conservation as well as the inhibition diversity with insects amylase enzyme. Ecological factors, singly or in combination, explained a significant proportion of the variations in the SNPs. Ecological factors have an important evolutionary role in gene differentiation at these loci, and tetrameric α-amylase inhibitors are obviously adaptively selected under different environments.

Safety of Brucea javanica and Cantharidin Combined with Chemotherapy for Treatment of NSCLC Patients

Ji, Zhu-Qing,Huang, Xin-En,Wu, Xue-Yan,Liu, Jin,Wang, Lin,Tang, Jin-Hai Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.20

Objective: To assess the safety of Brucea javanica and Cantharidin combined with chemotherapy in treating patients with non-small-cell lung carcinoma. Method: A consecutive cohort of patients with NSCLC were divided into four groups: experimental group A treated with Brucea javanica injection combined with chemotherapy; experimental group B with Cantharidin injection combined with chemotherapy; experimental group C treated with Brucea javanica and Cantharidin injection combined with chemotherapy; and the control group receiving only chemotherapy. After more than two courses of treatment, safety, quality of life and side effects were evaluated. Results: The incidences of myelosuppression in groups A, B and C were lower than that in Control group (p<0.05), but without significant differences among A, B and C. Adverse effects on the gastrointestinal tract also were lower than in controls (p<0.05) without variation amnog the combined treatment groups. Conclusions: Brucea javanica or Cantharidin combined with chemotherapy could in both cases improve quality of life in our cohort of NSCLC patients without any increase in toxicity. However, further clinical experiments should be conducted to evaluate the efficacy of Brucea javanica and Cantharidin combined with chemotherapy for patients with NSCLC.

<i>In Situ</i> Activation of Nitrogen-Doped Graphene Anchored on Graphite Foam for a High-Capacity Anode

Ji, Junyi,Liu, Jilei,Lai, Linfei,Zhao, Xin,Zhen, Yongda,Lin, Jianyi,Zhu, Yanwu,Ji, Hengxing,Zhang, Li Li,Ruoff, Rodney S. American Chemical Society 2015 ACS NANO Vol.9 No.8

<P>We report the fabrication of a three-dimensional free-standing nitrogen-doped porous graphene/graphite foam by <I>in situ</I> activation of nitrogen-doped graphene on highly conductive graphite foam (GF). After <I>in situ</I> activation, intimate “sheet contact” was observed between the graphene sheets and the GF. The sheet contact produced by <I>in situ</I> activation is found to be superior to the “point contact” obtained by the traditional drop-casting method and facilitates electron transfer. Due to the intimate contact as well as the use of an ultralight GF current collector, the composite electrode delivers a gravimetric capacity of 642 mAh g<SUP>–1</SUP> and a volumetric capacity of 602 mAh cm<SUP>–3</SUP> with respect to the whole electrode mass and volume (including the active materials and the GF current collector). When normalized based on the mass of the active material, the composite electrode delivers a high specific capacity of up to 1687 mAh g<SUP>–1</SUP>, which is superior to that of most graphene-based electrodes. Also, after ∼90 s charging, the anode delivers a capacity of about 100 mAh g<SUP>–1</SUP> (with respect to the total mass of the electrode), indicating its potential use in high-rate lithium-ion batteries.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/ancac3/2015/ancac3.2015.9.issue-8/acsnano.5b03888/production/images/medium/nn-2015-03888k_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/nn5b03888'>ACS Electronic Supporting Info</A></P>

Monte Carlo Method and Quantile Regression for Uncertainty Analysis of Wind Power Forecasting Based on Chaos-LS-SVM

Xin Zhao,Chao Ge,Fangfang Ji,Yajuan Liu 제어·로봇·시스템학회 2021 International Journal of Control, Automation, and Vol.19 No.11

In the paper, the chaos least squares support vector machine algorithm (Chaos-LS-SVM) is applied. To conduct uncertainty analysis of wind power forecasting, two forecasting algorithms of the probabilistic uncertainty analysis based on the Monte Carlo method and the quantile regression analysis based on Chaos-LS-SVM are discussed. The effectiveness and superiority of the two uncertainty analysis methods in the confidence level of 95%, 90%, and 85% are discussed by simulation analysis, and the confidence interval is given in the corresponding confidence level. The prediction interval coverage probability (PICP) and the prediction interval normalized average width (PINAW) of the two uncertainty methods are compared. In the time scale of 1h-ahead, 4h-ahead, and 6h-ahead, the probabilistic uncertainty analysis based on the Monte Carlo method is suitable. In the time scale of 24h-ahead, the quantile regression analysis based on Chaos-LS-SVM is superior.

A Criterion Describing the Dynamic Yield Behavior of PMMA

Ji Qiu,Tao Jin,Buyun Su,Qian Duan,Xuefeng Shu,Erqiang Liu,Xin Li 한국고분자학회 2019 Macromolecular Research Vol.27 No.8

Dynamic uniaxial and multiaxial tests were conducted to characterize the mechanical behavior of poly(methyl methacrylate) (PMMA). In this case, the multiaxial yield behavior of materials can be captured by the shear-compression samples (SCS). The experimental results were compared with different yield criteria, and which does not have a good agreement between theoretical prediction and experimental yield loci of PMMA undergoing combined shear-compression. Therefore, a phenomenological yield criterion is developed, and it notably involves hydrostatic stress sensitivity, lode angle, and one parameter. The parameter can be expressed by the asymmetry of yield strength between the tension and compression. The proposed criterion was verified by the utilization of differently combined shear-compression tests. The investigative results reveal that the proposed criterion can be successfully applied to describe the complex yield behavior of PMMA under dynamic loading conditions. The present study shows an efficient method to develop yield criterion of the reviewed materials.

Identification and Mapping of a Thermo-Sensitive Genic Self-Incompatibility Gene in Maize

Xin Ge Lin,Hui Ling Xie,Zhang Ying Xi,Yan Min Hu,Guang Yuan Zhao,Liu Jing Duan,Zong You Hao,Zong Hua Liu,Ji Hua Tang 한국유전학회 2009 Genes & Genomics Vol.31 No.3

In this study, we describe a novel ecological self-incompatibility (SI) line HE97 in maize. The main environmental factors influencing the inbred line characteristics were identified through field sowing trials during a two-year study period (2001 and 2002). The results showed that daily minimum temperature had the greatest effect on floral morphology and breeding system of the SI line. In staminate floret differentiation, when the daily minimum temperature exceeded 24℃, the line exhibited complete self-compatibility; however SI was observed when the daily minimum temperature was below 20℃. Therefore, we characterized the line as exhibiting thermo-sensitive genic self-incompatibility (TGSI). A set of F2 and F2:3 populations, derived from the inbred lines HE97 and Z58, were evaluated for two years to elucidate the TGSI line patterns of inheritance. Classical genetic analyses and QTL mapping results revealed that HE97 self-incompatibility was governed by a single allele, named here as tgsi1. The tgsi1 gene was mapped to chromosome 2 between SSR markers nc131 and bnlg1633, with a distance of 2.40 cM from nc131 and 2.44 cM from bnlg1633.

Further Study on Pemetrexed based chemotherapy in Treating Patients with Advanced Gastric Cancer (AGC)

Liu, Jin,Huang, Xin-En,Feng, Ji-Feng Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.16

Objective: To further observe the efficacy and safety of pemetrexed, combined with Irinotecan or oxaliplatin or cisplatin in treating patients with advanced gastric cancer as second-line or third-line chemotherapy. Methods: From September 2013 to February 2014 we recruited 50 patients with advanced gastric cancer, with stage IV disease or postoperative recurrence, or unresectable. Then treated with pemetrexed based chemotherapy. After two cycles of treatment, efficacy and toxicity were evaluated. Results: Pemetrexed based chemotherapy was used as second-line in 33 patients, RR(CR+PR) is 41.2%. And achieved 36.4% when used as third-line. Overall response rate of 50 patients treated with Pemetrexed based treatment was 38% (CR+PR). Treatment related side effects were bone marrow suppression, vomiting, hepatic dysfunction and malaise.No treatment related death occurred. Conclusions: Treatment with pemetrexed based chemotherapy is active and is well tolerated in patients with advanced gastric cancer.