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| 1 | FAT10 level in human gastric cancer and its relation with mutant p53 level,lymph node metastasis and TNM staging显示文摘AIM:To investigate the role of FAT10 and mutant p53 in the pathogenesis,severity and prognosis of gastric cancer.METHODS:FAT10,mutant p53 mRNA and protein levels were measured by reverse transcription(RT)-PCR and immunohistochemistry in gastric cancer tissue(n = 62),tumoradjacent tissue(n = 62) and normal gastric tissue(n = 62).Relation of FAT10 and mutant p53 expression with clinicopathological features and clinical outcomes of gastric cancer patients were analyzed.RESULTS:The FAT10,mutant p53 mRNA and protein levels were signif icantly higher in gastric cancer than in its adjacent and normal tissue.The FAT10 and mutant p53 levels in gastric cancer tissue were significantly correlated with lymph node metastasis and tumor,nodes,metastasis(TNM) staging.Moreover,the high FAT10 level was associated with the overall survival rate of patients.Multivariate Cox-proportional hazards model analysis showed that mRNA and protein levels of FAT10 and mutant p53,lymph node metastasis,distant metastasis and TNM stage were the independent prognostic factors for gastric cancer.CONCLUSION:FAT10 may be involved in gastric carcinogenesis,and is a potential marker for the prognosis of gastric cancer patients.FAT10 and mutant p53 may play a common role in the carcinogenesis of gastric cancer. | Feng Ji Xi Jin Chun-Hua Jiao Qin-Wei Xu Zi-Wei Wang Yue-Liang Chen | 2009 | World Journal of Gastroenterology2009，15，18： | 23 |
| 2 | Predictive and prognostic value of serum AFP level and its dynamic changes in advanced gastric cancer patients with elevated serum AFP显示文摘AIM To investigate predictive and prognostic value of serum alpha-fetoprotein(AFP) level and its dynamic changes in patients with advanced gastric cancer with elevated serum AFP(AFPAGC).METHODS One hundred and five patients with AFPAGC were enrolled in the study, and all of them underwent at least one cycle of systemic chemotherapy at our institute and had serum AFP ≥ 20 ng/m L at diagnosis or recurrence. Clinicopathologic features, serum AFP level at diagnosis and changes during treatment, first-line chemotherapy regimens, efficacy and toxicity, and survival information were collected. A Person's χ~2 or Fisher's exact test was used to measure the differences between variables. Survival prognostic factors were investigated using the Kaplan-Meier method and Cox regression.RESULTS Median serum AFP level was 161.7 ng/m L(range, 22.9-2557110 ng/m L). Objective response rates(ORR) was significantly lower in the AFP ≥ 160 ng/m L group than in the AFP < 160 ng/m L group(30.4% vs 68.3%, P < 0.001). ORR to doublet regimens was significantly lower in the AFP ≥ 160 ng/m L group, whereas ORR to triplet regimens was similar between the two groups. Liver metastasis rate was significantly higher in the AFP ≥ 160 ng/m L group than in the AFP < 160 ng/m L(69.8% vs 50.0%, P < 0.001). Overall survival(OS) in the two cohorts did not show any significant difference(P = 0.712). Dynamic changes of AFP were consistent with response to chemotherapy, and median OS of patients with a serum AFP decline ≥ 50% and those with a serum AFP decline < 50% was 17.5 m and 10.0 m, respectively(P = 0.003). Hepatic(P = 0.005), peritoneal(P < 0.001), non-regional lymph node metastasis(P < 0.001), and portal vein tumor thrombus(PVTT)(P = 0.042) were identified as independent prognostic factors for AFPAGC. CONCLUSION Real-time examination of AFP has great predictive and prognostic value for managing AFPAGC. For those with markedly elevated AFP, triplet regimens may be a better choice. | Ya-Kun Wang Lin Shen Xi Jiao Xiao-Tian Zhang | 2018 | World Journal of Gastroenterology2018，24，2： | 17 |
| 3 | Memetic computation based on regulation between neural and immune systems: the framework and a case study显示文摘Lamarckian learning has been introduced into evolutionary computation to enhance the ability of local search. The relevant research topic, memetic computation, has received significant amount of interest. In this study, a novel memetic computational framework is proposed by simulating the integrated regulation between neural and immune systems. The Lamarckian learning strategy of simulating the unidirectional regulation of neural system on immune system is designed. Consequently, an immune memetic algorithm based on the Lamarckian learning is proposed for numerical optimization. The proposed algorithm combines the advantages of immune algorithms and mathematical programming, and performs well in both global and local search. The simulation results based on ten low-dimensional and ten high-dimensional benchmark problems show that the immune memetic algorithm outperforms the basic genetic algorithm-based memetic algorithm in solving most of the test problems. | GONG MaoGuo , JIAO LiCheng, LIU Fang & YANG Jie Key Lab of Intelligent Perception and Image Understanding of Ministry of Education of China, Institute of Intelligent Information Processing, Xidian University, Xi’an 710071, China | 2010 | Science China(Information Sciences)2010，53，8： | 16 |
| 4 | Symmetric-key cryptosystem with DNA technology显示文摘DNA cryptography is a new field which has emerged with progress in the research of DNA computing. In our study, a symmetric-key cryptosystem was designed by applying a modern DNA biotechnology, microarray, into cryptographic technologies. This is referred to as DNA symmetric-key cryptosystem (DNASC). In DNASC, both encryption and decryption keys are formed by DNA probes, while its ciphertext is embedded in a specially designed DNA chip (microarray). The security of this system is mainly rooted in difficult biology processes and problems, rather than conventional computing technology, thus it is unaffected by changes from the attack of the coming quantum computer. The encryption process is a fabrication of a specially designed DNA chip and the decryption process is the DNA hybridization. In DNASC, billions of DNA probes are hybridized and identified at the same time, thus the decryption process is conducted in a massive, parallel way. The great potential in vast parallelism computation and the extraordinary information density of DNA are displayed in DNASC to some degree. | LU MingXin1,2*, LAI XueJia3*, XIAO GuoZhen4,2 & QIN Lei5 1 Department of Information Management, Nanjing University, Nanjing 210093, China 2 State Key Lab of Information Security, Institute of Software of Chinese Academy of Science, Beijing 100049, China 3 Department of Computer Science & Engineer, Shanghai Jiao Tong University, Shanghai 200030, China 4 State Key Lab of ISN, Xidian University, Xi’an 710071, China 5 Cancer Research Institute, Queen’s University, Kingston, Ontario, K7L3N6, Canada | 2007 | Science in China(Series F)2007，50，3： | 14 |
| 5 | Excitation and Detection of Shear Horizontal Waves with Electromagnetic Acoustic Transducers for Nondestructive Testing of Plates显示文摘The fundamental shear horizontal(SH0) wave has several unique features that are attractive for long-range nondestructive testing(NDT). By a careful design of the geometric configuration, electromagnetic acoustic transducers(EMATs) have the capability to generate a wide range of guided wave modes, such as Lamb waves and shear-horizontal(SH) waves in plates. However, the performance of EMATs is influenced by their parameters. To evaluate the performance of periodic permanent magnet(PPM) EMATs, a distributed-line-source model is developed to calculate the angular acoustic field cross-section in the far-field. Numerical analysis is conducted to investigate the performance of such EMATs with different geometric parameters, such as period and number of magnet arrays, and inner and outer coil widths. Such parameters have a great influence on the directivity of the generated SH0 waves that arises mainly in the amplitude and width of both main and side lobes. According to the numerical analysis, these parameters are optimized to obtain better directivity. Optimized PPM EMATs are designed and used for NDT of strip plates. Experimental results show that the lateral boundary of the strip plate has no perceivable influence on SH0-wave propagation, thus validating their used in NDT. The proposed model predicts the radiation pattern of PPM EMATs, and can be used for their parameter optimization. | MA Qingzeng JIAO Jingpin HU Ping ZHONG Xi WU Bin HE Cunfu | 2014 | Chinese Journal of Mechanical Engineering2014，27，2： | 12 |
| 6 | Multicenter Clinical Study for Evaluation of Efficacy and Safety of Transdermal Fentanyl Matrix Patch in Treatment of Moderate to Severe Cancer Pain in 474 Chinese Cancer Patients显示文摘Objective: Although a new matrix formulation fentanyl has been used throughout the world for cancer pain management, few data about its efficacy and clinical outcomes associated with its use in Chinese patients have been obtained. This study aimed to assess the efficacy and safety of the new system in Chinese patients with moderate to severe cancer pain. Methods: A total of 474 patients with moderate to severe cancer pain were enrolled in this study and were treated with the new transdermal fentanyl matrix patch (TDF) up to 2 weeks. All the patients were asked to record pain intensity, side effects, quality of life (QOL), adherence and global satisfaction. The initial dose of fentanyl was 25 ?g/h titrated with opioid or according to National Comprehensive Cancer Network (NCCN) guidelines. Transdermal fentanyl was changed every three days. Results: After 2 weeks. The mean pain intensity of the 459 evaluated patients decreased significantly from 5.63?1.26 to 2.03?1.46 (P<0.0001). The total remission rate was 91.29%, of which moderate remission rate 53.16%, obvious remission rate 25.49% and complete remission rate 12.64%. The rate of adverse events was 33.75%, 18.78% of which were moderate and 3.80% were severe. The most frequent adverse events were constipation and nausea. No fatal events were observed. The quality of life was remarkably improved after the treatment (P<0.0001). Conclusion: The new TDF is effective and safe in treating patients with moderate to severe cancer pain, and can significantly improve the quality of life. | Yu-lin Zhu Guo-hong Song Duan-qi Liu Xi Zhang Kui-feng Liu Ai-hua Zang Ying Cheng Guo-chun Cao Jun Liang Xue-zhen Ma Xin Ding Bin Wang Wei-lian Li Zuo-wei Hu Gang Feng Jiang-jin Huang Xiao Zheng Shun-chang Jiao Rong Wu Jun Ren | 2011 | Chinese Journal of Cancer Research2011，23，4： | 6 |
| 7 | Image Segmentation via Mean Shift and Loopy Belief Propagation显示文摘This paper presents a novel approach that can quickly and effectively partition images based on fully exploiting the spatially coherent property. We propose an algorithm named iterative loopy belief propagation(iLBP) to integrate the homogenous regions and prove its convergence. The image is first segmented by mean shift(MS) algorithm to form over-segmented regions that preserve the desirable edges and spatially coherent parts. The segmented regions are then represented by region adjacent graph(RAG) . Motivated by k-means algorithm,the iLBP algorithm is applied to perform the minimization of the cost function to integrate the over-segmented parts to get the final segmentation result. The image clustering based on the segmented regions instead of the image pixels reduces the number of basic image entities and enhances the image segmentation quality. Comparing the segmentation result with some existing algorithms,the proposed algorithm shows a better performance based on the evaluation criteria of entropy especially on complex scene images. | JIA Jianhua,JIAO Licheng,CHANG Xia Key Laboratory of Intelligent Perception and Image Understanding of Ministry of Education of China/Institute of Intelligent Information Processing,Xidian University,Xi’an 710071,Shaanxi,China | 2010 | Wuhan University Journal of Natural Sciences2010，15，1： | 5 |
| 8 | WGDI:A user-friendly toolkit for evolutionary analyses of whole-genome duplications and ancestral karyotypes显示文摘Evidence of whole-genome duplications(WGDs)and subsequent karyotype changes has been detected in most major lineages of living organisms on Earth.To clarify the complex resulting multi-layered patterns of gene collinearity in genome analyses,there is a need for convenient and accurate toolkits.To meet this need,we developed WGDI(Whole-Genome Duplication Integrated analysis),a Python-based command-line tool that facilitates comprehensive analysis of recursive polyploidization events and cross-species genome alignments.WGDI supports three main workflows(polyploid inference,hierarchical inference of genomic homology,and ancestral chromosome karyotyping)that can improve the detection of WGD and characterization of WGD-related events based on high-quality chromosome-level genomes.Significantly,it can extract complete synteny blocks and facilitate reconstruction of detailed karyotype evolution.This toolkit is freely available at GitHub(http://gffzz188fe103f8f1460asoppkc600boup6w65.ffgz.tsg.suse.edu.cn/SunPengChuan/wgdi).As an example of its application,WGDI convincingly clarified karyotype evolution in Aquilegia coerulea and Vitis vinifera following WGDs and rejected the hypothesis that Aquilegia contributed as a parental lineage to the allopolyploid origin of core dicots. | Pengchuan Sun Beibei Jiao Yongzhi Yang Lanxing Shan Ting Li Xiaonan Li Zhenxiang Xi Xiyin Wang Jianquan Liu | 2022 | Molecular Plant2022，15，12： | 5 |
| 9 | Interfacial behaviors of PMMA-PEO block copolymers at the air/water interface显示文摘Diblock copolymer of PMMA291-b-PEO114 and triblock copolymer of PMMA120-b- PEO227-b-PMMA120 were synthesized and their interfacial properties at the air-water interface were investigated, where both blocks of polyethylene oxide (PEO) and poly(methyl methacrylate) (PMMA) are surface active but the former is soluble in water while the latter is not. Both the block copolymers could form monolayers with two obvious transition regions. The first transition point is around 10 mN/m, which could be assigned to the pancake-brush change of the PEO chains. The other is around 18 mN/m, which could be ascribed to the condensed packing of PMMA. The surface morphological changes during the compression of the Langmuir monolayers are inves-tigated by using the AFM and SEM methods for the films deposited at different surface pressure or molecular areas. At a lower surface pressure, a typical morphology of PEO-con- taining lipopolymers is observed. Upon compression, sphere-dominant morphologies were observed. While the diblock copolymer is easy to folding, the triblock copolymer is in favor of formation of circular domains through vesiculation. | CHENG Caixia1, JIAO Tifeng2, TANG Rupei1, LIU Minghua2 & XI Fu1 1. State Key Laboratory of Polymer Physics and Chemistry, Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China 2. CAS Key Laboratory of Colloid and Interface Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China | 2005 | Science China Chemistry2005，48，6： | 5 |
| 10 | Intelligent multi-user detection using an artificial immune system显示文摘Artificial immune systems (AIS) are a kind of new computational intelligence methods which draw inspiration from the human immune system. In this study, we introduce an AIS-based optimization algorithm, called clonal selection algorithm, to solve the multi-user detection problem in code-division multipleaccess communications system based on the maximum-likelihood decision rule. Through proportional cloning, hypermutation, clonal selection and clonal death, the new method performs a greedy search which reproduces individuals and selects their improved maturated progenies after the affinity maturation process. Theoretical analysis indicates that the clonal selection algorithm is suitable for solving the multi-user detection problem. Computer simulations show that the proposed approach outperforms some other approaches including two genetic algorithm-based detectors and the matched filters detector, and has the ability to find the most likely combinations. | GONG MaoGuo, JIAO LiCheng, MA WenPing & MA JingJing Key Laboratory of Intelligent Perception and Image Understanding of Ministry of Education of China Institute of Intelligent Information Processing, Xidian University, Xi’an 710071, China | 2009 | Science in China(Series F)2009，52，12： | 5 |
| 11 | CONTRACTED EFFECT OF BELL-SHADE SHAPE WELDING ARC AND ACCOMPANIED MAGNETIC FIELD WITH SPIRAL PIPE SHAPE显示文摘CONTRACTEDEFFECTOFBELLSHADESHAPEWELDINGARCANDACCOMPANIEDMAGNETICFIELDWITHSPIRALPIPESHAPE①YuJianrong,ZhangJiaying,JiangLipei,... | Yu Jianrong, Zhang Jiaying , Jiang Lipei, Jiao Xiangdong Beijing Institute of Petrochemical Technology, Beijing 102600 Department of Mechanical Engineering,Tsinghua University, Beijing 100084 Jia Changshen, Shi Yaowu Xi′an Jiaotong University, | 1997 | 中国有色金属学会会刊:英文版1997，7，2： | 4 |
| 12 | Online adaptive Q-learning method for fully cooperative linear quadratic dynamic games显示文摘A model-based offline policy iteration(PI) algorithm and a model-free online Q-learning algorithm are proposed for solving fully cooperative linear quadratic dynamic games. The PI-based adaptive Q-learning method can learn the feedback Nash equilibrium online using the state samples generated by behavior policies, without sending inquiries to the system model. Unlike the existing Q-learning methods, this novel Q-learning algorithm executes both policy evaluation and policy improvement in an adaptive manner.We prove the convergence of the offline PI algorithm by proving its equivalence to Newton’s method while solving the game algebraic Riccati equation(GARE). Furthermore, we prove that the proposed Q-learning method will converge to the Nash equilibrium under a small learning rate if the method satisfies certain persistence of excitation conditions, which can be easily met by suitable behavior policies. Our simulation results demonstrate the good performance of the proposed online adaptive Q-learning algorithm. | Xinxing LI Zhihong PENG Lei JIAO Lele XI Junqi CAI | 2019 | Science China(Information Sciences)2019，62，12： | 4 |
| 13 | Phase boundary engineering of metal-organic-framework-derived carbonaceous nickel selenides for sodium-ion batteries显示文摘Nano Research volume 13,pages2289–2298(2020)Cite this article 347 Accesses 1 Altmetric Metrics details Abstract Sodium-ion batteries(SIBs)are promising power sources due to the low cost and abundance of battery-grade sodium resources,while practical SIBs suffer from intrinsically sluggish diffusion kinetics and severe volume changes of electrode materials.Metal-organic framework(MOFs)derived carbonaceous metal compound offer promising applications in electrode materials due to their tailorable composition,nanostructure,chemical and physical properties.Here,we fabricated hierarchical MOF-derived carbonaceous nickel selenides with bi-phase composition for enhanced sodium storage capability.As MOF formation time increases,the pyrolyzed and selenized products gradually transform from a single-phase Ni3Se4 into bi-phase NiSex then single-phase NiSe2,with concomitant morphological evolution from solid spheres into hierarchical urchin-like yolk-shell structures.As SIBs anodes,bi-phase NiSex@C/CNT-10h(10 h of hydrothermal synthesis time)exhibits a high specific capacity of 387.1 mAh/g at 0.1 A/g,long cycling stability of 306.3 mAh/g at a moderately high current density of 1 A/g after 2,000 cycles.Computational simulation further proves the lattice mismatch at the phase boundary facilitates more interstitial space for sodium storage.Our understanding of the phase boundary engineering of transformed MOFs and their morphological evolution is conducive to fabricate novel composites/hybrids for applications in batteries,catalysis,sensors,and environmental remediation. | Shiyao Lu Hu Wu Jingwei Hou Limin Liu Jiao Li Chris J.Harris Cheng-Yen Lao Yuzheng Guo Kai Xi Shujiang Ding Guoxin Gao Anthony K.Cheetham R.Vasant Kumar | 2020 | Nano Research2020，13，8： | 4 |
| 14 | A Wavelet-Based Fuzzy Neural Network for Interpolation of Fuzzy If-Then Rules显示文摘In this paper, a wavelet-based fuzzy neural network with its structure and a learningalgorithm is proposed and the simulation results are given to prove its feasibility. | Jiao Licheng Liu Fang Wang Ling & Zhang Yanning(State Key Lab. of RSP and Center for Neural Networks, Xidian University, Xi’an 710071, P. R. China) (This project was partly supported by the National Thud of Intercent. Expert and partly supported bythe | 1998 | Journal of Systems Engineering and Electronics1998，9，4： | 3 |
| 15 | A Model for Loadout Analysis and Its Programming Implementation显示文摘- In this paper, the authors use the finite element method to conduct a special static analysis for the loadout procedure of offshore structures. By introducing a variable Xmove (the distance between the relative coordinate system fixed in the moving upper structure and the absolute coordinate system fixed on slideway), adopting substructure to treat the upper structure, and using the elastic foundation beam to model the slideway, the model for the analysis of the loadoul procedure is established. On the basis of this model, DASOS-J loadout program, a program system for the static analysis of loadout offshore structures, is also developed. | Zhong Wanxie , Yao Shizhong Wu Lianyuan and Xi Deyin Professor, Shanghai Jiao Tong University, 200030, Shanghai Engineer, Shanghai Jiao Tong University, 200030, Shanghai Lecturer, Shanghai Jiao Tong University. 200030, Shanghai | 1993 | China Ocean Engineering1993，8，4： | 3 |
| 16 | Short-segment Barrett's esophagus and cardia intestinal metaplasia:A comparative analysis显示文摘AIM:To investigate the endoscopy and histology of short-segment Barrett's esophagus (SSBE) and cardia intestinal metaplasia (CIM),and their correlation with Helicobacter pylori (H. pylori) gastritis and gastroesophageal reflux disease (GERD). METHODS:Biopsy specimens were taken from 32 SSBE patients and 41 CIM patients with normal appearance of the esophagogastric junction. Eight biopsy specimens from the lower esophagus,cardia,and gastric antrum were stained with hematoxylin/eosin,Alcian blue/periodic acid-Schiff,Alcian blue/high iron diamine and Gimenez dye. Results were graded independently by one pathologist. RESULTS:The SSBE patients were younger than the CIM patients (P < 0.01). The incidence of dysplasia and incomplete intestinal metaplasia subtype was higher in SSBE patients than in CIM patients (P < 0.01). H. pylori infection was correlated with antral intestinal metaplasia (P < 0.05),but not with reflux symptomatic,endoscopic,or histological markers of GERD in CIM patients. SSBE was correlated with reflux symptomatic and endoscopic esophagitis (P < 0.01),but not with H. pylori infection and antral intestinal metaplasia. CONCLUSION:Dysplasia risk is significantly greater in SSBE patients than in CIM patients. CIM is a manifestation of H. pylori-associated and multifocal atrophic gastritis,whereas SSBE may result from GERD. | Ying Chang,Digestive Endoscopic Center,Shanghai Sixth Hospital,Shanghai Jiao Tong University,Shanghai 200233,China Bin Liu,Department of Emergence Surgery,Shaanxi Provincial People’s Hospital,Xi’an 710068,Shaanxi Province,China Gui-Sheng Liu,Department of Gastroenterology,Shaanxi Provincial People’s Hospital,Xi’an 710068,Shaanxi Province,China Tao Wang,Department of Gastroenterology,First Hospital of Xi’ an Jiaotong University,Xi’an 710061,Shaanxi Province,China Jun Gong,Department of Gastroenterology,Second Hospital of Xi’an Jiaotong University,Xi’an 710004,Shaanxi Province,China | 2010 | World Journal of Gastroenterology2010，16，48： | 3 |
| 17 | AFM based anodic oxidation and its application to oxidative cutting and welding of CNT显示文摘Probe anodic oxidation by atomic force microscope (AFM) is one of the most important techniques in fabricating nano structures and devices. The technique was further studied in this paper. By analyzing the distribution of the electric field on substrate surface the dependence of oxide characters on field was discussed. The impacts of various parameters on oxide fabrication were experimentally studied. Based on these studies, we realized the oxidative cutting and welding of carbon nanotube (CNT) by the AFM based oxidation technique and provided a novel technique for the assembly and fabrication of CNT based nano devices. | JIAO NianDong WANG YueChao XI Ning DONG ZaiLi | 2009 | Science China(Technological Sciences)2009，52，11： | 3 |
| 18 | Multiuser detection and independent component analysis——Progress and perspective显示文摘The latest progress in the multiuser detection and independent component analysis (ICA) is reviewed systematically. Then two novel classes of multiuser detection methods based on ICA algorithms and feedforward neural networks are proposed. Theoretical analysis and computer simulation show that ICA algorithms are effective to detect multiuser signals in code-division multiple-access (CDMA) system. The performances of these methods are not identical entirely in various channels, but all of them are robust, efficient, fast and suitable for real-time implementations. | JIAO Licheng , MA Haibo and LIU Fang( State Key Laboratory for Radar Signal Processing, Xidian University, Xi’an 710071, China) | 2002 | Progress in Natural Science:Materials International2002，12，7： | 3 |
| 19 | Immunodominance and clonal selection inspired multiobjective clustering显示文摘The biological immune system is a highly parallel and distributed adaptive system. The information processing abilities of the immune system provide important insights into the field of computation. Based on immunodominance in the biological immune system and the clonal selection mechanism, a novel data mining method, Immune Dominance Clonal Multiobjective Clustering algorithm (IDCMC), is presented. The algorithm divides an individual population into three sub-populations according to three different measurements, and adopts different evolution and selection strategies for each sub-population. The update of each sub-population, however, is not carried out in isolation. The periodic combination operation of the analysis of the three sub-populations represents considerable advantages in its global search ability. The clustering task is a multiobjective optimization problem, which is more robust with respect to the variety of cluster structures of different datasets than a single-objective clustering algorithm. In addition, the new algorithm can determine the number of clusters automatically, which should identify the most promising clustering solutions in the candidate set. The experimental results, using artificial datasets with different manifold structure and handwritten digit datasets, show that the IDCMC outperforms the PESA-Ⅱ-based clustering method, the genetic algorithm-based clustering technique and the original K-Means algorithm in solving most of the problems tested. | Wenping Ma , Licheng Jiao, Maoguo Gong Key Laboratory of Intelligent Perception and Image Understanding of the Ministry of Education of China, Institute of Intelligent Information Processing, Xidian University, Xi’an 710071, China | 2009 | Progress in Natural Science:Materials International2009，19，6： | 3 |
| 20 | Controlled synthesis and magnetic properties of Fe_3O_4 walnut spherical particles and octahedral microcrystals显示文摘Magnetite Fe3O4 walnut spherical particles and octahedral microcrystals were suc- cessfully synthesized from K4 [Fe (CN) 6], K3 [Fe (CN) 6] and NaOH reagents via a simple hydrothermal process. And the uniform morphology of octahedral micro- crystals was obtained in the presence of ethylene glycol. The morphology and structure of products were characterized by powder X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The results showed that the Fe3O4 walnut spherical particles and octahedral microcrystals were single crystals with the face-center cubic structure and with size distributions from 2.2 to 8.6 μm and 1.6 to 12.5 μm, respectively. Their magnetic properties were detected by a vibrating sample magnetometer at room temperature. The walnut spherical parti- cles exhibited a ferromagnetic behavior with the coercive force (Hc), saturation magnetization (Ms) and remanent magnetization (Mr) being 150.57 Oe, 97.634 and 12.05 emu/g, respectively. For the octahedral microcrystals they were 75.28 Oe, 101.90 and 6.69 emu/g, respectively. Different sizes of walnut spherical particles were controlled synthesized through adjusting the NaOH concentration. It was found that ethylene glycol molecules have a significant effect on the formation of Fe3O4 octahedra. A possible mechanism was also proposed to account for the growth of these Fe3O4 | JIAO Hua1,2 & YANG HeQing1 1 Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an 710062, China 2 Department of Chemistry and Chemical Engineering, Weinan Teachers University, Wei nan 714000, China | 2008 | Science China(Technological Sciences)2008，51，11： | 3 |
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