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| 1 | Further support for a Cretaceous age for the feathered-dinosaur beds of Liaoning,China:New ^(40)Ar/^(39)Ar dating of the Yixian and Tuchengzi Formations显示文摘We report new 40Ar/39Ar dating results ob-tained from total fusion and incremental-heating analyses of sanidine and biotite from three tuffs found interbedded within the fossil-bearing deposits of Liaoning, northeast China. The first is a new sample of the Bed 6 Sihetun tuff from the Yixian Formation, previously dated by our team as middle Early Cretaceous, and recently considered by Lo et al., partially reset due to metamorphism from a nearby ba-saltic sill. The second is the Yixian Bed 9 tuff from Heng-daozi considered by Lo et al. to be unaffected by metamor-phism and whose age, based on total fusion 40Ar/39Ar dating of biotite, argues for a Jurassic age for the Yixian Formation. The third tuff is a previously undated tuff from the upper part of the underlying Tuchengzi Formation. Single crystal total fusion 40Ar/39Ar analyses of the Sihetun sanidine showed homogeneous radiogenic Ar, Ca/K ratios, excellent reproducibility and gave a mean age of 125.0 ± 0.18 (1SD) ± 0.04 (SE) Ma. Single sanidine | C. C. Swisher III, WANG Xiaolin, ZHOU Zhonghe, WANG Yuanqing, JIN Fan, ZHANG Jiangyong , XU Xing, ZHANG Fucheng & WANG YuanDepartment of Geological Sciences, Wright Labs, Rutgers University, Piscataway, New Jersey 08854, USA (e-mail: cswish@rutgers. rci.e | 2002 | Chinese Science Bulletin2002，47，2： | 83 |
| 2 | PTEN encoding product:a marker for tumorigenesis and progression of gastric carcinoma显示文摘AIM: To detect the expression of PTEN encoding productin normal mucosa, intestinal metaplasia (IM), dysplasia andcarcinoma of the stomach, and to investigate its clinicalimplication in tumorigenesis and progression of gastriccarcinoma.METHODS: Formalin-fixed paraffin embedded specimens from184 cases of gastric carcinoma, their adjacent normal mucosa,IM and dysplasia were evaluated for PTEN protein expressionby SABC immunohistochemistry. PTEN expression wascompared with tumor stage, lymph node metastasis, Lauren'sand WHO's histological classification of gastric carcinoma.Expression of VEGF was also detected in 60 cases of gastriccarcinoma and its correlation with PTEN was concerned.RESULTS: The positive rates of PTEN protein were 100 %(102/102), 98.5 %(65/66), 66.7 % (4/6) and 47.8 %(88/184)in normal mucosa, IM, dysplasia and carcinoma of the stomach,respectively. The positive rates in dysplasia and carcinomawere lower than in normal mucosa and IM (P<0.01).Advanced gastric cancers expressed less frequent PTEN thanearly gastric cancer (42.9 % v567.6 %, P<0.01). The positiverate of PTEN protein was lower in gastric cancer with thanwithout lymph node metastasis (40.3 % v563.3 %, P<0.01).PTEN was less expressed in diffuse-type than in intestinal-type gastric cancer (41.5 % v557.8 %,P<0.05). Signet ringcell carcinoma showed the expression of PTEN at the lowestlevel (25.0 %, 7/28); less than well and moderatelydifferentiated ones (P<0.01). Expression of PTEN was notcorrelated with expression of VEGF (P>0.05).CONCLUSION: Loss or reduced expression of PTEN proteinoccures commonly in tumorigenesis and progression of gastriccarcinoma. It is suggested that PTEN can be an objective markerfor pathologically biological behaviors of gastric carcinoma. | Lin Yang Li-Ge Kuang Hua-Chuan Zheng Jin-Yi Li Dong-Ying Wu Su-Min Zhang Yan Xin No.4 Lab,Cancer Institute,The First Affiliated Hospital,China Medical University,Shenyang 110001,China Ying Chen Shen Yang Gynecology & Obstetrics Hospital,Shenyang 110014,China | 2003 | World Journal of Gastroenterology2003，9，1： | 127 |
| 3 | Changes of gut bacteria and immune parameters in liver transplant recipients显示文摘BACKGROUND: Liver transplantation is one of the most effective therapeutic options for patients with end-stage liver diseases, and gut microbiota is actively involved in potential infections in pretransplant and posttransplant patients. However, the diversity of gut microbiota and its relationship with the immune parameter of liver transplantation recipients are not well understood. METHODS: We collected fresh feces and blood samples from 190 participants in China from November 2004 to May 2008, including 28 healthy volunteers, 51 cirrhotic patients and 111 liver-transplanted patients. Six interesting gut bacteria, plasma endotoxin, serum cytokines (i.e., tumor necrosis factor alpha and interleukin-6) and fecal secretory IgA (SIgA) were investigated by real-time quantitative PCR, chromogenic limulus amoebocyte assay, sandwich-type enzyme-linked immunosorbent assay and radioimmunoassay, respectively. RESULTS: All Eubacteria, Bifidobacterium spp., Faecalibacterium prausnitzii and Lactobacillus spp. were significantly lower in the liver transplantation recipients while Enterobacteriaceae and Enterococcus spp. were significantly higher (P<0.05). Except for Enterococcus spp., other bacteria showed a tendency to restore to normal level along with the time after liver transplantation. Plasma endotoxin, interleukin-6 and fecal SIgA in cirrhotic patients increased significantly, but not in liver transplantation recipients. Plasma endotoxin and interleukin-6 were negatively correlated with all Eubacteria and the Bacteroides-Prevotella group, while tumor necrosis factor alpha was not significantly correlated with these six gut bacteria in cirrhotic patients.CONCLUSIONS: Our study demonstrates that abundant gut bacteria were altered significantly in both cirrhotic and liver transplantation patients, while plasma endotoxin and interleukin-6 increased remarkably in cirrhotic patients, showing significant correlations with gut microbiota. Interestingly, our data show a tendency for these gut bacteria to restore to normal levels in liver transplantation recipients. | Zhong-Wen Wu, Zong-Xin Ling, Hai-Feng Lu, Jian Zuo, Ji-Fang Sheng, Shu-Sen Zheng and Lan-Juan Li State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Diseases Key Lab of Combined Multiorgan Transplantation, Ministry of Public Health, Key Lab of Organ Transplantation and Department of Hepatobiliary and Pancreatic Surgery , First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China | 2012 | Hepatobiliary & Pancreatic Diseases International2012，11，1： | 37 |
| 4 | Neural stem cell markers,nestin and musashi proteins,in the progression of human glioma:correlation of nestin with prognosis of patient survival显示文摘 | Strojnik T R■sland GV Sakariassen PO Kavalat R Lab T | 2007 | 中国神经肿瘤杂志2007，5，3： | 34 |
| 5 | Edge Effect Correction in the S-A Method for Geochemical Anomaly Separation显示文摘Anomaly separation using geochemical data often involves operations in the frequency domain, such as filtering and reducing noise/signal ratios. Unfortunately, the abrupt edge truncation of an image along edges and holes (with missing data) often causes frequency distribution distortion in the frequency domain. For example, bright strips are commonly seen in frequency distribution when using a Fourier transform. Such edge effect distortion may affect information extraction results; sometimes severely, depending on the edge abruptness of the image. Traditionally, edge effects are reduced by smoothing the image boundary prior to applying a Fourier transform. Zero-padding is one of the most commonly used smoothing methods. This simple method can reduce the edge effect to some degree but still distorts the image in some cases. Moreover, due to the complexity of geoscience images, which can include irregular shapes and holes with missing data, zero-padding does not always give satisfactory results. This paper proposes the use of decay functions to handle edge effects when extracting information from geoscience images. As an application, this method has been used in a newly developed multifractal method (S-A) for separating geochemical anomalies from background patterns. A geochemical dataset chosen from a mineral district in Nova Scotia, Canada was used to validate the method. | Ge Yong Department of Earth and Atmospheric Science, York University, Toronto, ON, M3J 1P3, Canada State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences & Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China Cheng Qiuming Department of Earth and Atmospheric Science, York University, Toronto, ON, M3J 1P3, Canada Earth Systems and Mineral Resource Engineering Lab, China University of Geosciences, Wuhan 430074, China Zhang Shenyuan Department of Earth and Atmospheric Science, York University, Toronto, ON, M3J 1P3, Canada Department of Resource and Earth Science, China University of Mining & Technology, Beijing 100083, China | 2004 | Journal of China University of Geosciences2004，15，4： | 28 |
| 6 | Preliminary study on seasonal succession and development pathway of phytoplankton community in the Bohai Sea显示文摘Phytoplankton species composition and species succession were determined in 1998-1999 based on 2 nestle investigation cruises in the Bohai Sea and two monthly monitoring stations at Penglai and Changdao for 15 months. The seasonal succession and pathway of phytoplankton community in the Bohai Sea were discussed complementarily with history data. The main process of Phytoplankton community development in the Bohai Sea was controlled by temperature and nutrient replenishes. There were two cell abundance peaks in an annual variation, the main peak in April and the secondary peak in September. In winter, the cell abundance was low due to the low temperature, the phytoplankton community was mainly made up of small-celled diataoms. In spring, the phytoplankton community was developed very quickly by small-celled diatom in suitable conditions of temperature and nutrients. In summer, the cell abundance decreased and big-celled diatoms became predominated. In autumn, because of the replenish of nutrient, big-celled diatoms and dinoflagellates formed another cell abundance peak. during the annual variation of phytoplankton community in the Bohai Sea, species succession was the main process of community development, the species sequence just occur at special areas and special periods. The evolution of phytoplankton community in the Bohai Sea accords with the hypothesis of Margalef’s phytoplankton community of four stages. But the size feature is contrary to the hypothesis, which may be caused by nutrient replenish in autumn in Bohai Sea and the top to down control. | Sun Jun, Liu Dongyan, Qian Shuben (1. Marine Ecosystem Dynamic Lab, Marine Life Science College, Ocean University of Qingdao, Qingdao 266003, China. ) | 2001 | Acta Oceanologica Sinica2001，20，2： | 24 |
| 7 | Presence of Antibodies to Heat Stress Proteins and its Possible Significance in Workers Exposed to High Temperature and Carbon Monoxide显示文摘Antibodies to the ubiquitous group of stress proteins known as heat shock proteins (Hsps) have been found to be associated with a number of diseases in humans. Hsps are known to be induced by certain xenobiotics, some of which are common in the working environment. The biological significance of the presence of such autoantibodies is presently unclear. In the present study, we used immunoblotting to investigate the presence of antibodies against the different stress proteins, Hsp27, Hsp60, Hsp71, Hse (heat shock cognate ) 73 and Hsp89a and D in groups of workers exposed to high temperature or carbon monoxide. These data were related to a detailed clinical evaluation and to various laboratory measurements including electrocardiogram (ECG), B echogram, white blood cell counts and typing, the activity of alanine aminotransferase (ALT), acid phosphatase (ACP) and alkaline phosphatase (ALP) and lymphocyte DNA damage. Antibodies to Hsp27 and Hsp71 were found more frequently in the high temperature and carbon monoxide-exposed groups than in controls (P (0.05 ). The carbon monoxide-exposed group showed the highest incidence of anti-Hsp antibodies. Anti-Hsp60 antibodies were only detected in workers exposed to high temperature or carbon monoxide. The percentage of workers with abnormal ECG, B echogram changes and displaying hepatitis B antigen (HBsAg ) was higher in the carbon monoxide group than in the control group (P<0.05 ).There was a significant inerease in the activity of ALT in the high temperature and carbon monoxide groups and in the activities of ACP and ALP in the carbon monoxide group (P<0.05 ). The extent of DNA damage measured in lymphoeytes was higher in workers from the high temperature and carbon monoxide-cxposed groups. We suggest that the increased frequeney of antibodies to Hsps is the result of these damages, of the release of denatured Hsps and of a decrease in the phagocytic ability of macrophages in these workers. The data gathered in the present study show a statistical relation between the occurrence of antibodies against Hsps and the frequency of health problems in workers and suggest a potential role for the antibodies as useful biomarkers to assess whether workers are experieneing environmental | WU TANG-CHUN TANGUAY, ROBERT M. WU YANG HE HAN-ZHEN XU DAI-GEN FENG JIA-DE SHI WU-XIANG AND ZHANG GUO-GAO (Institute of Occupational Medicine, Tongji Medical University, Wuhan 430040, China Centre de recherche du CHUL and Lab of Cellular and Develo | 1996 | Biomedical and Environmental Sciences1996，9，4： | 23 |
| 8 | Variations of sulfur and carbon isotopes in seawater during the Doushantuo stage in late Neoproterozoic显示文摘Successive analyses of sulfur and carbon isotopic compositions of carbonates strata in the Doushantuo Formation in the Yangtze area were accomplished through a method of extracting trace sulfate from carbonates. Sulfur and carbon isotopic compositions of coeval seawater were estimated from the samples that show the least diagenetic alteration. A high-resolution age curve of sulfur isotopes in seawater sulfates was obtained in the Doushantuo stage, which reflects the trend of variation in seawater sulfur isotopes after the Neoproterozoic snowball Earth event. Similar characteristics of variation in carbon isotopes were observed in the coeval carbonates. A large positive d 34S excursion over +20?occurs in ancient seawater sulfates in the early Doushantuo stage. Simultaneously, the d 13C values in ancient seawater carbonates exhibit a positive excursion up to 10. The maximum d 34S and d 13C values are +46.4 and +6.9? respectively. In the middle Doushantuo stage, the range of variation in d 34S values of seawater is relatively narrow, but d 13C values are quite high. Then, d 34S values of seawater become oscillating, and the same occurs in d 13C values. Negative excursions in d 34S and d 13C values occur simultaneously at the end of the Doushantuo stage, and the minimum d 34S and d 13C values dropped down to -10.1 and -5.7? respectively. The characteristics of variations in the sulfur and carbon isotopes of ancient seawater imply strong changes in oceanic environment that became beneficial to inhabitation and propagation of organism. The organic productivity and burial rate of organic carbon once reached a quite high level during the Doushantuo stage. However, the state of environment became unstable after the global glaciation. The global climate and environment possibly were fluctuating and reiterating. The negative excursions in d 34S and d 13C values occurring at the end of the Doushantuo stage may represent a global event, which might be related to oxidation of deep seawater. | ZHANG Tonggang, CHU Xuelei, ZHANG Qirui, FENG Lianjun & HUO Weiguo Key Lab of Mineral Resources Exploration and Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China | 2003 | Chinese Science Bulletin2003，48，13： | 21 |
| 9 | Orthotopic transplantation model of human gastrointestinal cancer and detection of micrometastases显示文摘AIM To establish a relevant animal model ofhuman gastrointestinal cancer, which can beused for repetitive investigations, so as toimprove our understanding and management ofcarcinogenesis and cancer metastasis.METHODS Intact tissues of human colorectaland pancreatic cancers were transplanted innude mice. The biological characteristics of theoriginal and the corresponding transplantedtumors were investigated by HE staining, PASstaining and immunostaining. The metastases inthe livers and lungs of nude mice wereinvestigated by immunostaining withbiotinylated mab KL-1 and by RT-PCR using CK20specific primers.RESULTS There were totally 9 of 16 surgicalspecimens growing in nude mice subcutaneouslyand/.or orthotopically (4 of 6 colorectal and 5 of10 pancreatic cancer). Tumor cell content of thespecimens and freezing of tissue specimens areimportant factors influencing the growth oftransplanted tumor. In the group of fresh tumortissues with greater than 50% tumor cellcontent, the success rate of the transplantationwas 100% (3 cases of pancreatic cancer and 3cases of colorectal cancer). The orthotopicallytransplanted tumors resemble the original tumormorphologically and biologically, including TAAexpression such as CEA byimmunohistochemistry, and CEA level in theserum of mice. Ki-67 labeling index and theexpression of TAA especially K-ras, 17-lA andRA-96, are associated with the potential of tumorgrowth in nude mice. Micrometastases in thelungs and livers of tumor bearing mice can bedetected by immunostaining with biotinylatedmab KL-1 and CK20-specific RT-PCR.CONCLUSION An orthotopic transplantationmodel for human colon and pancreatic cancer innude mice has been set up. We have alsoestablished sensitive detection methods withCK-immunohistochemistry and CK20-RT-PCR tostudy xenotransplanted human cancer and itsmetastatic cancer cells in the liver and lung ofnude mice. This study may be helpful inunderstanding the mechanism of cancermetastasis and in developing new diagnosticmethods and therapeutic strategies formetastases including micrometastases. | Jun Hui Cui~1 Uwe Krueger~2 Doris Henne-Bruns~2 Bemd Kremer~2 Holger Kalthoff~2 ~1Department of General Surgery,First Affiliated Hospital,College of Medicine,Zhejiang University,Hangzhou 310003,Zhejiang Province,China ~2Department of General Surgery,Christian-Albrechts-University,Kiel,GermanyDr.Jun Hui Cui graduated from Zhejiang Medical University in 1984,earned master degree in 1990,studied in the Surgical Department of Kiel University and worked in the Lab of Molecular Oncology of Kiel University from 1994-1997achieved M.D.from Kiel University.Germany,now associate professor of surgery,specialized in colorectal oncology.Adviser of graduated student for master degree,having 20 publications published in key Chinese or English journals. | 2001 | World Journal of Gastroenterology2001，7，3： | 19 |
| 10 | Kikuchi-Fujimoto病显示文摘Kikuchi—Fujimoto病,或称组织细胞坏死性淋巴结炎,是一种自限性疾病。其特征是良性的淋巴结肿大,可伴有发热和系统性症状。该病最常累及亚裔人,常为小于40岁的年轻成人患者。受累淋巴结常显示副皮质区凋亡坏死,可见大量核碎片以及组织细胞、浆样树突细胞和CD8阳性的T细胞增生,但缺乏中性粒细胞浸润。Kikuchi—Fujimoto病的病变进程分3期:增生期、坏死期和黄色瘤期。 | Hutchinson C B Wang E.Kikuchi-fujimoto disease Arch Patbol Lab Med 樊祥山(摘译) | 2010 | 临床与实验病理学杂志2010，26，3： | 19 |
| 11 | Research and Application Prospect of Computer Simulation on Heat Treatment Process显示文摘In this paper, a modified temperature-phase transformation-stress/strain field coupled 3D non-linear mathematical model was used in the computer simulation on heat treatment processes of workpieces including catch jaw, anchor ring, cold roller, large-scale bearing roller, nitriding crank shaft, etc. The simulation on complicated technologies such as pre-cooled quenching, double media quenching, self-tempering, difference temperature heating, nitriding distortion was carried out. The optimum design of heat treatment technology has been realized. The successful application of computer simulation on heat treatment have also been demonstrated. | Pan Jiansheng, Li Yongjun, Cu Jianfeng, Hu Mingjuan Open Research Lab for High Temperature Materials & Testing, SJTU, Shanghai, 200030 | 2000 | Journal of Shanghai Jiaotong university(Science)2000，5，1： | 19 |
| 12 | Overexpression of a tobacco small G protein gene NtRop1 causes salt sensitivity and hydrogen peroxide production in transgenic plants显示文摘The small GTPases of Rop/Rho family is central regulators of important cellular processes in plants. Tobacco small G protein gene NtRop1 has been isolated; however, its roles in stress responses were unknown. In the present study, the genomic sequence of NtRop1 was cloned, which has seven exons and six introns, similar to the Rop gene structure from Arabidopsis. The NtRop1 gene was constitutively expressed in the different organs whereas the other six Rop genes from tobacco had differential expression patterns. The expression of the NtRop1 gene was moderately induced by methyl viologen, NaCl, and ACC treatments, but slightly inhibited by ABA treatment, with no significant induction by NAA treatment. The transgenic Arabidopsis plants overexpressing the NtRop1 showed increased salt sensitivity as can be seen from the reduced root growth and elevated relative electrolyte leakage. The hydrogen peroxide production was also promoted in the NtRop1-trangenic plants in comparison with wild type plants. These results imply that the NtRop1 may confer salt sensitivity through activation of H2O2 production during plant response to salt stress. | CAO YangRong1,2, LI ZhiGang1,2, CHEN Tao1,2, ZHANG ZhiGang1, ZHANG JinSong1 & CHEN ShouYi1 1 National Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China 2 Graduate School of Chinese Academy of Sciences, Beijing 100039, China | 2008 | Science China(Life Sciences)2008，51，5： | 18 |
| 13 | On the major proposals for carbon emission reduction and some related issues显示文摘We evaluated and ran simulations for seven proposals for the reduction of global CO2 emissions (e.g.,those of the Intergovernmental Panel on Climate Change (IPCC),United Nations Development Program,and Organization for Economic Cooperation and Development).All the proposals ignored the fact that the cumulative CO2 emissions per capita for developed countries were 7.54 times those for developing countries in the historical period of 1900-2005.These proposals further deliberately allocate 2006-2050 emission quotas to developed countries that are 2.3-6.7 times those to developing countries.This will seriously violate the development rights of developing countries.This paper clearly states that proposals such as that of the IPCC are not suitable references for future international climate change negotiations as they violate the fundamentals of fairness and equity in international relationships and the UNFCCC principle of 'common but differentiated responsibilities'.Comparing estimates of emissions in China in the scenario of rapid development with low-CO2-emission technology in the period 2006-2050 with estimates for other countries and groups,we find that China can logically and morally argue for equivalent emission rights even in the case of the strict CO2 concentration target of 450-470 ppmv. | DING ZhongLi1,DUAN XiaoNan2,GE QuanSheng3 & ZHANG ZhiQiang4 1 CAS Key Lab of Cenozoic Geology and Environment,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China 2 The General Office of Chinese Academy of Sciences,Beijing 100864,China 3 Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China 4 The Lanzhou Branch of the National Science Library,Scientific Information Center for Resources and Environment of CAS,Lanzhou 730000,China | 2010 | Science China Earth Sciences2010，53，2： | 18 |
| 14 | Role of soil rhizobacteria in phytoremediation of heavy metal contaminated soils显示文摘Heavy metal pollution of soil is a significant environmental problem and has its negative impact on human health and agriculture. Rhizosphere, as an important interface of soil and plant, plays a significant role in phytoremediation of contaminated soil by heavy metals, in which, microbial populations are known to affect heavy metal mobility and availability to the plant through release of chelating agents, acidification, phosphate solubilization and redox changes, and therefore, have potential to enhance phytoremediation processes. Phytoremediation strategies with appropriate heavy metal-adapted rhizobacteria have re-ceived more and more attention. This article paper reviews some recent advances in effect and significance of rhizobacteria in phytoremediation of heavy metal contaminated soils. There is also a need to improve our understanding of the mechanisms in-volved in the transfer and mobilization of heavy metals by rhizobacteria and to conduct research on the selection of microbial isolates from rhizosphere of plants growing on heavy metal contaminated soils for specific restoration programmes. | JING Yan-de1,2, HE Zhen-li1,3, YANG Xiao-e1 (1Ministry of Education Key Lab of Environment, Remediation and Ecosystem Health, School of Natural Resource and Environment Science, Zhejiang University, Hangzhou 310029, China) (2Department of Resources and Planning, Qufu Normal University, Jining 273165, China) (3University of Florida Institute of Food and Agricultural Sciences, Indian River Research and Education Center, Fort Pierce, Florida 34945, USA) | 2007 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2007，8，3： | 18 |
| 15 | Developing Linux kernel space device driver显示文摘This thesis introduces how to develop kernel level device driver on Linux platform in detail. On the basis of comparing proc file system with dev file system, we choose PCI device and USB device as instances to introduce the method of writing device driver for char devices by using these two file systems. | Rockwell Automation Lab, Guangdong University of Technology, Guangzhou, China) Zheng,Wei Wang,Qinruo Wu,Naiyou | 2003 | 微计算机信息2003，19，12： | 18 |
| 16 | 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 |
| 17 | DISLOCATION DISSOCIATIONS AND FAULTENERGIES IN Ni_3Al ALLOYS DOPED WITH PALLADIUM显示文摘Dislocation structures in polycrystalline Ni 3Al alloy doped with palladium deformed at room temperature have been investigated by transmission electron microscopy. The structure consists mainly of dislocations dissociated into a /2〈011〉 super partials bounding an anti phase boundary (APB). Dislocations dissociated into a /3〈112〉 super Shockley partials bounding a superlattice intrinsic stacking fault (SISF) are also common debris. The majority of the SISFs are truncated loops, i.e. the partials bounding the SISF are of similar Burgers vector. These faulted loops are generated from APB coupled dislocations, according to a mechanism for formation of SISFs proposed by Suzuki et al , and recently modified by Chiba et al . The APB energies for {111} and {010} slip planes are measured to be 144±20 mJ/m 2 and 102±11 mJ/m 2 respectively, and the SISF energy has been estimated to be 12 mJ/m 2 in this alloy. It is concluded that the dislocation structure in Ni 74.5 Pd 2Al 23.5 alloy deformed at room temperature is similar to that in binary Ni 3Al, and the difference in fault energies between these two alloys is small. Thus, it seems unlikely that the enhancement of ductility of Ni 74.5 Pd 2Al 23.5 results from only such a small decrease of the ordering energy of the alloy. SISF bounding dislocations also have no apparent influence on the ductilization of Ni 74.5 Pd 2Al 23.5 alloy. | J. Sun *# , C. S. Lee # and J. K. L. Lai # * Open Lab for High Temperature Materials & Tests, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China # Department of Physics and Materials | 1999 | 中国有色金属学会会刊:英文版1999，9，S1： | 16 |
| 18 | Geometric construction of energy-minimizing Bézier curves显示文摘Modeling energy-minimizing curves have many applications and are a basic problem of Geometric Modeling.In this paper,we propose the method for geometric design of energy-minimizing B′ezier curves.Firstly,the necessary and sufficient condition on the control points for B′ezier curves to have minimal internal energy is derived.Based on this condition,we propose the geometric constructions of three kinds of B′ezier curves with minimal internal energy including stretch energy,strain energy and jerk energy.Given some control points,the other control points can be determined as the linear combination of the given control points.We compare the three kinds of energy-minimizing B′ezier curves via curvature combs and curvature plots,and present the collinear properties of quartic energy-minimizing B′ezier curves.We also compare the proposed method with previous methods on efficiency and accuracy.Finally,several applications of the curve generation technique,such as curve interpolation with geometric constraints and modeling of circle-like curves are discussed. | XU Gang 1,4,5,WANG GuoZhao 2 & CHEN WenYu 2,3 1 Institute of Graphics and Image,Hangzhou Dianzi University,Hangzhou 310018,China 2 Department of Mathematics,Zhejiang University,Hangzhou 310027,China 3 School of Computer Engineering,Nanyang Technological University,639798,Singapore 4 Galaad,INRIA Sophia-Antipolis,2004 Route des Lucioles,06902,France 5 State Key Lab of CAD & CG,Zhejiang University,Hangzhou 310027,China | 2011 | Science China(Information Sciences)2011，54，7： | 15 |
| 19 | 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 |
| 20 | An efficient ranging method based on Chinese remainder theorem for RIPS measurement显示文摘The radio interferometric positioning system(RIPS) measures the phase difference of the interference signal to provide high accuracy and at the same time maintain simple hardware configuration for wireless sensor networks.However, it suffers from phase ambiguity problem because of the periodicity of phase, which makes it hard to determine the actual distance difference only from a single phase measurement.To solve the problem, RIPS makes multiple measurements at different frequencies so as to determine the distance difference from multiple phases.However, this is a computationally intensive searching process and not suitable for energyconstrained wireless sensor nodes.In this paper, we introduce the Chinese remainder theorem(CRT) to RIPS to solve the phase ambiguity problem.Meanwhile, we utilize some properties of the coefficients in the CRT algorithm to avoid the over-sensitivity of the traditional CRT, which increases the robustness of the algorithm.We apply this robust CRT algorithm to the ranging process which calculates the distance difference directly from a closed-form equation and therefore reduces the response time and the energy consumption of the ranging procedure. | WANG Chen , YIN QinYe & WANG WenJie Ministry of Education Key Lab for Intelligent Networks and Network Security, Xi’an Jiaotong University, Xi’an 710049, China | 2010 | Science China(Information Sciences)2010，53，6： | 13 |
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