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Application of Magnetic Treatment in Hot Water Boilers for Preventing Scale

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Journal of Materials Science & Technology 1999年第6期15卷 575-577页

作者： Geng, dy Zhang, ZD Cui, BZ Guo, ZJ Liu, W Zhao, XG Liu, JW Chinese Acad Sci Inst Met Res Shenyang 110015 Peoples R China Tianjin Inst Technol Tianjin 300191 Peoples R China

The application of magnetic treatment technology to hot water recirculating systems resulted in a reduction in scale deposited on the inside pipe walls by changing the formation of scale from its solid form to slag. T... 详细信息

关键词： exp Application of Magnetic Treatment in Hot Water Boilers for Preventing Scale

Diagnostic value of amino acid consumption test on exocrine pancreatic insufficiency

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World Journal of Gastroenterology 2000年第2期6卷 290-292页

作者： Lei ZM Li dy Li J Wang Q He K Zheng SL Gan YG Luzhou Med Coll Affiliated Hosp Dept Hepatobiliary Surg Luzhou 646000 Sichuan Peoples R China

INTRODUCTIONAmino acid consumption test (AACT) has a highsensitivity and specificity in evaluating exocrinepancreatic insufficiency,but its diagnostic valueto exocrine pancreatic insufficiency in Chinese hasnot been well *** this study,the oralreagent stimulating pancreatic secretion (O-AACT)was used instead of cerulein(I-AACT) for amidoacid consumption test and the dignostic efficiency ofO-AACT was evaluated and compared with I-AACTon the exocrine pancreatic insufficiency in Chinese.

关键词： pancreatic insufficiency/diagnosis aminoacid consumption test cerulein cholelithiasis

Active oxygen radical scavenging ability of water-soluble fullerenols

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Chinese Science Bulletin 1997年第9期42卷 748-752页

作者： Sun, dy Zhu, YS Liu, ZY Liu, GZ Guo, XH Zhan, RY Liu, XY State Key Laboratory of Applied Spectroscopy Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun China

THE bioactivity study of C60 and its relative derivatives is of considerable ***60 itself is a non-polar molecule and very difficult to dissolve in common polar solvents,its ap-plication in biochemistry field is greatly *** preparation of some water-solubleC60 derivatives will be *** found that a water-soluble C60 derivative,[HOCO-

关键词： C60 fullerenols active-oxygen-radical ESR spin trapping.

Methylene green-mediated sensor highly sensitive to hydrogen peroxide based on entrapment of horseradish peroxidase in composite membrane of regenerated silk fibroin and poly(vinyl alcohol)

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Chinese Journal of Chemistry 1996年第4期14卷 359-366页

作者： Wu, YX Liu, HY Qi, dy Liu, YC Qian, JH Liu, SH Yu, TY Deng, JQ SHANGHAI UNIV DEPT CHEM & CHEM ENGNSHANGHAI 200072PEOPLES R CHINA FUDAN UNIV DEPT MACROMOL SCI & CHEMSHANGHAI 200433PEOPLES R CHINA

A novel composite membrane of poly(vinyl alcohol) and regenerated silk fibroin was employed to immobilize horseradish peroxidase (HRP) and IR was used to give a useful insight into the structure of the composite membrane before and after ethanol treatment. A methylene green-mediated sensor sensitive to hydrogen peroxide was fabricated, based on the composite membrane as immobilization matrix for HRP. Cyclic voltammetry and amperometric measurement were for the first time utilized to demonstrate the suitability of methylene green as an electron transfer mediator between immobilized HRP and a glassy carbon electrode in bioelectrocatalytic reduction of hydrogen peroxide. Performance and characteristics of the sensor were evaluated in respect to response time, detection limit, applied potential and concentration of the mediator. The sensor possesses a variety of characteristics including good sensitivity, rapid response time and low detection of limit of 0.1 mu mol/L.

关键词： sensor poly(vinyl alcohol) regenerated silk fibroin methylene green horseradish peroxidase hydrogen peroxide

Harnessing the Power of GPUs to Speed Up Feature Selection for Outlier Detection

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Journal of Computer Science & Technology 2014年第3期29卷 408-422页

作者： Fatemeh Azmandian Member, IEEE, Ayse Yilmazer Student Member, IEEE, Jennifer G. dy Member, IEEE Javed A. Aslam IEEE, Jennifer G. dy Member, ACM David R. Kaeli Fellow, IEEE, Member, ACM Department of Electrical and Computer Engineering Northeastern University Boston 02115-5096 U.S.A. College of Computer and Information Science Northeastern University Boston 02115-5096 U.S.A.

Acquiring a set of features that emphasize the differences between normal data points and outliers can drastically facilitate the task of identifying outliers. In our work, we present a novel non-parametric evaluation criterion for filter-based feature selection which has an eye towards the final goal of outlier detection. The proposed method seeks the subset of features that represent the inherent characteristics of the normal dataset while forcing outliers to stand out, making them more easily distinguished by outlier detection algorithms. Experimental results on real datasets show the advantage of our feature selection algorithm compared with popular and state-of-the-art methods. We also show that the proposed algorithm is able to overcome the small sample space problem and perform well on highly imbalanced datasets. Furthermore, due to the highly parallelizable nature of the feature selection, we implement the algorithm on a graphics processing unit （GPU） to gain significant speedup over the serial version. The benefits of the GPU implementation are two-fold, as its performance scales very well in terms of the number of features, as well as the number of data points.

关键词： feature selection outlier detection imbalanced data GPU acceleration

Subzonal insemination with primary spermatocytes in mouse

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Chinese Science Bulletin 1997年第15期42卷 1304-1308页

作者： Liu, L Sun, QY Duan, CW Liu, H Song, XF Qian, JF Chen, dy CHINESE ACAD SCI INST ZOOLSTATE KEY LAB REPROD BIOLBEIJING 100080PEOPLES R CHINA

IT is well known that oocytes, in general condition, can be penetrated by sperm rather thanround spermatids. In 1993, Ogura injected round spermatid nuclei into hamster oocytes anddemonstrated that the spermatid nuclei could transform into pronuclei with DNA synthesis andthat their chromosomes mingled with oocyte chromosomes immediately. In order to avoid themechanical damage to the oocytes, an alternative method, cell-to-cell fusion, was used. Ap-proximately 20%—40% and 30% of round spermatids could be fused with oocytes by

关键词： primary spermatocyte subzonal insemination electrofusion mouse.

Ab initio theory of the negatively charged boron vacancy qubit in hexagonal boron nitride

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npj Computational Materials 2020年第1期6卷 1332-1337页

作者： Viktor Ivády Gergely Barcza GergőThiering Song Li Hanen Hamdi Jyh-Pin Chou Örs Legeza Adam Gali Wigner research Centre for Physics PO Box 49Budapest 1525Hungary Department of Physics Chemistry and BiologyLinköping University58183 LinköpingSweden J.HeyrovskýInstitute of Physical Chemistry Academy of Sciences of the Czech RepublicDolejškova 318223 Prague 8Czech Republic Department of Mechanical Engineering City University of Hong KongKowloon TongHong KongChina Department of Atomic Physics Budapest University of Technology and EconomicsBudafokiút 8.Budapest 1111Hungary

Highly correlated orbitals coupled with phonons in two-dimension are identified for paramagnetic and optically active boron vacancy in hexagonal boron nitride by first principles methods which are responsible for recently observed optically detected magnetic resonance ***,we report ab initio analysis of the correlated electronic structure of this center by density matrix renormalization group and Kohn-Sham density functional theory *** establishing the nature of the bright and dark states as well as the position of the energy levels,we provide a complete description of the magneto-optical properties and corresponding radiative and non-radiative routes which are responsible for the optical spin polarization and spin dependent luminescence of the *** findings pave the way toward advancing the identification and characterization of room temperature quantum bits in two-dimensional solids.

关键词： boron hexagonal vacancy

Jupiter^(TM)采用精密星历、钟差修正和电离层格网模型的GPS定位结果

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测绘通报 1997年第3期 33-39页

作者： Gao,dy 赫建忠

在过去几年里，人们开始注意采用精密ＧＰＳ卫星星历、卫星钟修正和电离层模型作为替代传统的ＤＧＰＳ经济实用的方法。精密星历和卫星钟修正可用于消除广播星历和卫星钟的误差影响，还包括克服ＳＡ的影响。另一方面，精确的电离层模型... 详细信息

在过去几年里，人们开始注意采用精密ＧＰＳ卫星星历、卫星钟修正和电离层模型作为替代传统的ＤＧＰＳ经济实用的方法。精密星历和卫星钟修正可用于消除广播星历和卫星钟的误差影响，还包括克服ＳＡ的影响。另一方面，精确的电离层模型对单频用户很重要。它比只采用标准广播电离层模型能得到更好的电离层延迟。本文研究了采用从加拿大现行的控制系统获得的精密星历、卫星钟修正以及电离层格网模型所获得的定位精度。采用了在ＡｌｇｏｎｑｕｉｎＰａｒｋ，Ｏｎｔａｒｉｏ和Ａｌｂｅｒｔａ的卡尔加里大学所采集的数据组进行了一些试验，并运用Ｐｕｌｓｅａｒｃｈ开发的ＧＰＳ后处理软件包ＪｕｐｉｔｅｒＴＭ进行全部数据处理及管理。计算非平滑连续的最小二乘定位结果，结果再与测站的已知坐标相比较。结果显示：采用精密星历和钟修正可以获得１ｍ～３ｍ的定位精度。采用由加拿大地学信息大地测量分部开发的精密的电离层格网模型能提高点的平面定位精度。

关键词：测量 GPS 定位星历钟差修正格网模型

Geographical clines in the size of the herb field mouse(Apodemus uralensis)

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Integrative Zoology 2020年第1期15卷 55-68页

作者： Linas BALČIAUSKAS Albina AMSHOKOVA Laima BALČIAUSKIENĖ Ana Maria BENEDEK Jan CICHOCKI Alexander CSANÁdy Philippe Gil DE MENDONÇA Victoria NISTreANU Nature research Centre VilniusLithuania Tembotov Institute of Ecology of Mountain Territories RAS NalchikRussia Lucian Blaga University of Sibiu SibiuRomania University of Zielona Góra Zielona GóraPoland Department of Biology Faculty of Humanities and Natural SciencesUniversity of PrešovPrešovSlovakia CESAM University of LisbonLisbonPortugal Institute of Zoology Academy of Sciences of MoldovaChisinauMoldova

Patterns of body size variation along geographical gradients have long been searched for and generalized into eco-geographical ***,no rodent species has yet been analyzed in relation to the 3 dimensions of latitude,longitude and *** analyzed geographical clines and dimorphism of body and skull size in the herb field mouse(Apodemus uralensis)across the species range,based on field data and on data from the liter*** dimorphism in adult *** was not expressed at a large scale,while local patterns were in***-dependent size changes were most expressed in adult individuals:most characters of adults exceeded in size those of subadults,while subadult-juvenile size differences were only significant in body weight and length,zygomatic skull width,length of cranial diastema and breadth of *** central morphological niches along the clines being separated,*** populations showed a high degree of size overlap in morphological *** found the species to be characterized by high size variability,with the largest individuals inhabiting the eastern and southern edges of the distribution ***,hind foot and ear lengths were largest in the southern part of the range,in agreement with Allen’s *** main measurements that we analyzed,namely body mass,zygomatic skull width and condylobasal skull length,show the presence of 3 clines in the size of adult ***:(i)a decreasing south-north cline,opposing Bergmann’s rule;(ii)an increasing west-east cline,in accordance with Murphy’s rule;and(iii)an increasing altitudinal cline.

关键词： altitudinal cline Apodemus uralensis east-west cline south-north cline species range