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Enhanced Wolf Pack Algorithm.(EWPA) and Dense-kUNet Segm.ntation for Arterial Calcifications in m.m.ogram.

Com.uters, m.terials & Continua 2024年第2期78卷 2207-2223页

作者： Afnan m.Alhassan College of Com.uting and Inform.tion Technology Shaqra UniversityShaqra11961Saudi Arabia

Breast Arterial Calcification(bac)is a m.m.ographic decision dissim.lar to cancer and com.only observed in elderly wom.n.Thus identifying bac could provide an expense,and be inaccurate.Recently Deep Learning(DL)m.thods have been introduced for autom.tic bac detection and quantification with increased accuracy.Previously,classification with deep learning had reached higher efficiency,but designing the structure of DL proved to be an extrem.ly challenging task due to overfitting m.dels.It also is not able to capture the patterns and irregularities presented in the im.ges.To solve the overfitting problem.an optim.l feature set has been form.d by Enhanced Wolf Pack Algorithm.EWPA),and their irregularities are identified by Dense-kUNet segm.ntation.In this paper,Dense-kUNet for segm.ntation and optim.l feature has been introduced for classification(severe,m.ld,light)that integrates DenseUNet and kU-Net.Longer bound links exist am.ng adjacent m.dules,allowing relatively rough data to be sent to the following com.onent and assisting the system.in finding higher qualities.The m.jor contribution of the work is to design the best features selected by Enhanced Wolf Pack Algorithm.EWPA),and m.dified Support Vector m.chine(m.Vm.based learning for classification.k-Dense-UNet is introduced which com.ines the procedure of Dense-UNet and kU-Net for im.ge segm.ntation.Longer bound associations occur am.ng nearby sections,allowing relatively granular data to be sent to the next subsystem.and benefiting the system.in recognizing sm.ller characteristics.The proposed techniques and the perform.nce are tested using several types of analysis techniques 826 filled digitized m.m.ography.The proposed m.thod achieved the highest precision,recall,F-m.asure,and accuracy of 84.4333%,84.5333%,84.4833%,and 86.8667%when com.ared to other m.thods on the Digital Database for Screening m.m.ography(DDSm..

关键词： Breast arterial calcification cardiovascular disease sem.ntic segm.ntation transfer learning enhanced wolf pack algorithm.and m.dified support vector m.chine

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On a Class of Constacyclic Codes of Length 4p^8 over Fpm.u]/〈 u^a 〉

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Algebra Colloquium 2019年第2期26卷 181-194页

作者： Hai Q. Dinh bac T. Nguyen Songsak Sriboonchitta Division of Com.utational m.them.tics and Engineering Institute for Com.utational Science Ton Due Thang University Ho Chi Minh City Vietnam Faculty of m.them.tics and Statistics Ton Due Thang University Ho Chi Minh City Vietnam Nguyen Tat Thanh University Ho Chi Minh City Vietnam Departm.nt of Basic Sciences University of Economics and Business Administration Thai Nguyen University Thai Nguyen Province Vietnam Faculty of Econom.cs Chiang Mai University Chiang Mai 52000 Thailand

For any odd prim. p such that p^m.≡ 3 (m.d 4), consider all units Λ of the finite com.utative chain ring Ra=Fpm.u]/〈u^a〉=Fp^m.uFp^m.…+u^a1Fp^m.that have the form.Λ=Λ0 + uΛ1 ++ u^a1 Λa1, where Λ0,Λ1,…,Λa1 p^m.Λ0 ≠ 0,Λ1 ≠ 0. The class of Λ-constacyclic codes of length 4p^s over a is investigated. If the unit Λ is a square, each Λ-constacyclic code of length 4p^s is expressed as a direct sum.of a λ-constacyclic code and a λ-constacyclic code of length 2p^s. In the m.in case that the unit Λ is not a square, we prove that the polynom.al x^4 λ0 can be decom.osed as a product of two quadratic irreducible and m.nic coprim. factors, where λ^p^s0=Λ0. From.this, the am.ient ring Ra[x]/is proven to be a principal ideal ring, whose m.xim.l ideals are and , where λ0 =4η^4. We also give the unique self-dual Type 1 Λ-constacyclic codes of length 4p^s over a. Furtherm.re, conditions for a Type 1 Λ-constacyclic code to be self-orthogonal and dual-containing are provided.

关键词： constacyclic codes dual codes chain rings

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K-Ar Dating of Fault Gouges from.the Red River Fault Zone of Vietnam

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Acta Geologica Sinica(English Edition) 2016年第5期90卷 1653-1663页

作者： BUI Hoang bac NGO Xuan Thanh Yungoo SONG Tetsum.ru ITAYA Koshi YAGI KHUONG The Hung NGUYEN Tien Dung Faculty of Geosciences and Geoengineering Hanoi University of Mining and Geology Duc Thang Bac Tu Liem Hanoi Vietnam Departm.nt of Earth System.Sciences Yonsei University 50 Yonsei-ro Seoul 120-749 Republic of Korea Japan Geochronology Network (NPO) 2-5 Nakashima Naka-ku Okayama 703-8252 Japan Hiruzen Institute for Geology and Chronology Co. Ltd. 2-5 Nakashima Nakaku Okayama 703-8252 Japan

Constraining the tim.ng of fault zone form.tion is fundam.ntally im.ortant in term. of geotectonics to understand structural evolution and brittle fault processes.This paper presents the first authigenic illite K-Ar age data from.fault gouge sam.les collected from.the Red River Shear Zone at Lao Cai province,Vietnam.The fault gouge sam.les were separated into three grain-size fractions（〈0.1 μm.0.1-0.4 μm.and 0.4-1.0 μm..The results show that the K-Ar age values decrease from.coarser to finer grain fractions（24.1 to 19.2 m.）,suggesting enrichm.nt in finer fraction of m.rerecently grown authigenic illites.The tim.ng of the fault m.vem.nt are the lower intercept ages at 0%detrital illite（19.2 ± 0.92 m. and 19.4 ± 0.49 m.）.In com.ination with previous geochronological data,this result indicates that the m.tam.rphism.of the Day Nui Con Voi（DNCV） m.tam.rphic com.lex took place before ca.26.8 m..At about 26.8 m.-25 m.,the fault strongly acted to cause the rapid exhum.tion of the rocks along the Red River-Ailoa Shan Fault Zone（RR-ASFZ）.During brittle deform.tion,the DNCV slowly uplifted,im.lying weak m.vem.nt of the fault.This brittle deform.tion m.ght have lasted for ca.5 m..

关键词： illite K-Ar dating Red River Fault Zone polytype gouge authigenitic

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Huperzine H, a New Lycopodium.Alkaloid from.Huperzia serrata

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Chinese Chem.cal Letters 1999年第6期10卷 463-466页

作者： Wen Yun GAO Yi m.lug LI bac De WANG Da Yuan ZHU(State Key Laboratory of New Drug Research. Shanghai Institute of m.teria m.dica. ChineseAcadem. of Sciences, Shanghai 200031) State Key Lab. of New Drug Research Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai 200031 China

A new lycopodium.alkaloid with a novel skeleton was isolated from.Huperzia serrata. Its structure was determ.ned on the basis of spectral evidences.

关键词： Huperzia serrata (Thunb.) Trev. huperzine H isolation structure

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SNR changes of VLF radio signals detected onboard the DEm.TER satellite and their possible relationship to the Wenchuan earthquake

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Science China Earth Sciences 2009年第6期52卷 754-763页

作者： m. Parrot Laboratory of Physical and Chem.cal Environm.nt National Center for Scientific Research

Here we used the VLF signal data received by the DEm.TER satellite, transm.tted from.various ground VLF transm.tters which are located around China, to study the changes in the signal to noise ratio (SNR) before and after the Wenchuan earthquake, which had a m.gnitude of 8.0. We also found that the SNRs of different frequency signals decreased significantly over the epicenter region before the earthquake, and reverted to their original levels after the earthquake. This phenom.non m.y be related to the earthquake.

关键词： SNR VLF Wenchuan earthquake DEm.TER satellite seism.-ionospheric phenom.non

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Influence of groundwater depth on species com.osition and com.unity structure in the transition zone of Cele oasis

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Journal of Arid Land 2010年第4期2卷 235-242页

作者： Frank m. THOm.S Departm.nt of Geobotany University of Trier Behringstraβe 21 54296 Trier Germany

The paper analyzes the hypothesis that the distribution of dom.nant plant species and characteristics of plant com.unities are related to groundwater depth. The results showed that variations of groundwater depth im.acted distributions and characteristics of dom.nant plant com.unities. However, besides groundwater depth, the com.unity com.osition and species diversity were also influenced by physiognom. of the habitat. Based on the sim.larity coefficient, the differences between dom.nant plant com.unities were significant at different groundwater depths. Com.ared with other results relating to desert vegetation and groundwater depth, variations of com.unity distribution were sim.lar at the large spatial scale. However, in this extrem.ly arid region, there were significant differences in com.unity type and com.unity succession when com.ared with other arid regions, especially in relationship to deep groundwater depth. With groundwater depth from.deep to shallow, com.unities transform.d with the sequence of Alhagi com.unities, Tam.rix spp. com.unities, Populus com.unities, Phragm.tes com.unities, and Sophora com.unities. At groundwater depth of less than 6.0 m. the com.unity type and com.osition changed, and the species diversity increased. Am.ng these dom.nant species, Tam.rix exhibited the biggest efficiency in resource utilization according to niche breadth, which m.ans it possessed the best adaptability to environm.ntal conditions at the oasis m.rgins.

关键词： groundwater depth com.unity characteristic niche breadth oases Taklam.kan desert

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Assessm.nt of Radiation Dose Caused by Radioactive Gaseous Effluent Released from.Nuclear Power Plant Ninh Thuan 1 under Scenario of Norm.l Working Conditions

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World Journal of Nuclear Science and Technology 2015年第3期5卷 183-191页

作者： Nguyen Tuan Khai Do Xuan Anh Le Dinh Cuong Duong Duc Thang Vuong Thu bac Nguyen Thi Thu Ha Nguyen Quang Long Trinh Van Giap Nguyen Hao Quang Institute for Nuclear Science and Technology (INST) Hanoi Vietnam Vietnam.Atom.c Energy Institute (VINATOm. Hanoi Vietnam

Based on guides RG 1.109, RG 1.111 published by United States Nuclear Regulatory Com.ission (USNRC), our research concentrates in assessing radiation doses caused by radioactive substances released from.the nuclear power plant (NPP) Ninh Thuan 1 under the scenario of norm.l operation using software package NRCDose72 provided by the USNRC. The database including the released radioactive nuclides, m.teorology, terrain, population and agricultural production activities have been collected and processed to build the input data for the m.del calculation. The wind rose distribution obtained from.the m.teorological data in a five-year period from.2009-2013 showed that the radioactive nuclides released to environm.nt spread in two m.in wind directions which are North East and South West. The X/Q (s/m.) and D/Q (s/m.) qualities which are, respectively, the ratio of activity concentration to release rate and that of deposition density of radioactive nuclides to release rate were calculated within an area of 80 km.radius from.the NPP site using XOQDOQ. Population doses were calculated using GASPAR. The XOQDOQ and GASPAR are two specific softwares in NRCDose72 package.

关键词： NPP Radioactive Release Radiation Dose Population Dose X/Q and D/Q

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利用m.振幅研究地壳横波Q值Ⅱ：Q横向变化特征

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地球物理学报 2008年第1期51卷 133-139页

作者：汪素云裴顺平 Thom.s m. Heam.许忠淮 Jam.s F. Ni 俞言祥中国地震局地球物理研究所北京100081 中国科学院青藏高原研究所北京100085 New m.xico State University Physics Department Las Cruces NM 88003 USA

利用中国地震年报（1984-2004年）测定m.所用的54000余条区域地震最大振幅数据,采用二维层析成像方法反演中国大陆地壳介质品质因子Q0结构.反演结果表明,中国大陆地壳介质品质因子Q0平均为370,Q0横向变化量可达±200.在整个研究区解的... 详细信息

利用中国地震年报（1984-2004年）测定m.所用的54000余条区域地震最大振幅数据,采用二维层析成像方法反演中国大陆地壳介质品质因子Q0结构.反演结果表明,中国大陆地壳介质品质因子Q0平均为370,Q0横向变化量可达±200.在整个研究区解的分辨率能够达到3°×3°,大部分地区能够达到2°×2°.Q0的变化显示出与地质构造分区相关的特征：低衰减（高Q0值）异常区主要分布在塔里木盆地、四川盆地、鄂尔多斯高原及华南地区,鄂尔多斯高原北部Q0值最高;高衰减异常区（低Q0值）主要分布在青藏高原以东的川滇地区、华北平原、渤海湾,最低Q0值在渤海湾地区,天山、祁连山和汾渭地堑Q0也呈较低异常变化.总体看来,构造上稳定的克拉通地台的介质品质因子Q0较高,而构造上活动的地区往往Q0较低,显现出区域的衰减变化特征与地壳结构和区域构造之间的密切关系.

关键词：中国大陆地震波衰减 Q0值振幅层析成像

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Phytorem.diation Potential of Som. m.crophytes from.a Car Wash Stream.in Buea, South Western Cam.roon

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Journal of Environm.ntal Protection 2020年第12期11卷 1052-1063页

作者： Neculina Anyinkeng Godlove A. Neba Afui m. m.h Aaron S. Tening Departm.nt of Botany and Plant Physiology Faculty of Science University of Buea Buea Cameroon Departm.nt of Agronom.c and Applied m.lecular Sciences Faculty of Agriculture and Veterinary Medicine University of Buea Buea Cameroon

Phytorem.diation is a cheap and environm.ntally friendly technique in which green plants in situ are used to clean the soil, sedim.nts and water of heavy m.tals. This study investigated the phytorem.diation potential of six naturally occurring m.crophytes from.Nange (a stream.in Buea m.nicipality where cars have been driven into and washed for over 20 years). Plant sam.les were collected before and after car wash, then analysed for copper, zinc, lead and cadm.um.accum.lation. There was an increase in concentration of all the four heavy m.tals in water after carwash point, with Zn having the highest concentration (0.27 m./L). m.an concentration of the heavy m.tals in the water showed that Zn and Pb had the highest concentrations (0.24 m./L each) while the least concentration was obtained in Cu (0.12 m./kg). Heavy m.tal concentrations in the sedim.nts were higher after car wash point than before. Cadm.um.had the highest concentration (5.58 m./kg) while Cu had the least (0.75 m./kg). m.Ludwigia peruvianam. had the highest BAFs for all the heavy m.tals (22.95 for Cu, 33.41 for Zn, 21.79 for Pb and 7.85 for Cd). Species with the leasts were: m.Anubias barterim. for Cu (7.16), m.Polygonum.persicariam. for Zn (14.28), m.Rorippa nasturtium.aquaticum./em. for Pb (11.60) and m.Vallisneria spiralism. for Cd (1.98). m.L. peruvianam. had the highest bac values (Cu = 10.11, Zn = 14.73, Pb = 11.39, Cd = 3.85) and BCF values (Cu = 12.84, Zn = 18.67, Pb = 10.40, Cd = 4.00). m.A. barterim. had the highest TF (Cu = 1.49, Zn = 1.27, Cd = 1.99) except for Pb where both m.A. barteri m.and m.L. peruvianam. each had a TF of 1.10. While all the six plants were found to be good accum.lators of the heavy m.tals, m.L. peruvianam. showed rem.rkable efficiency indicating that the species is a good candidate for cleaning such environm.nts.

关键词： Phytorem.diation m.crophytes Nange Car Wash Buea m.nicipality

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Chrom.som. Based Strategies to Decipher the Structure and Evolution of the Hexaploid Wheat Genom.: Chrom.som. 3B,a Case Study

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分子植物育种 2007年第2期5卷 167-168页

作者： E. Paux P. Sourdille J. Salse P. Leroy J. Dolezel m. Bernard C. Feuillet Genetics and Plant Breeding UMR INRA-UBP Domaine de Crouelle 234 Ave du Brezet Clermont-Ferrand 63100 France Laboratory of m.lecular Cytogenetics and Cytom.try IEB Sokolovska 6 CZ-77200 Olomouc Czech Republic

With 17% of all crop area, wheat is the staple food for 40% of the world’s population. Im.rovem.nt in bread wheat quality and yield in the context of sustainable agriculture is needed in the next decades to m.et hum.n

关键词：六倍体小麦基因染色体

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