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| 1 | 基于A位元素置换策略合成新型MAX相材料Ti_3ZnC_2显示文摘MAX相材料是一类兼具金属和陶瓷特性的三元层状材料,在高温导电、耐磨、耐腐蚀和耐辐照损伤等方面性能优异。目前已经合成出的MAX相材料已有70余种,但A位元素一直局限在ⅢA和ⅣA主族元素,如Al、Si、Ga等,而以副族元素占据A位的MAX相鲜有报道。本研究以Ti_3AlC_2为前驱体,利用熔盐中的A位置换反应,制备出了A位为Zn元素的全新MAX相材料Ti_3ZnC_2。结合X射线衍射、扫描电子显微镜和透射电子显微镜等分析手段对Ti_3ZnC_2的成分和结构进行了确认,并通过密度泛函理论对Ti_3ZnC_2的结构稳定性和晶格参数进行了确定。进一步通过热力学计算对Fe、Co、Ni、Cu等几种元素的A位置换反应进行了预测,发现采用这几种元素的氧化物进行置换反应在热力学上也都具有可行性。本研究所提出的元素置换策略是在保持MAX相六方层状晶体结构的基础上,利用Al、Zn在高温下形成共晶产物实现Zn原子向A层内的迁移,而熔盐介质的存在促进了反应动力学。本方法巧妙地避免了MAX相传统合成过程中竞争相的形成,如M-A合金相,因此可以用于探索更多未知的MAX相材料。 | 李勉 李友兵 罗侃 LU Jun EKLUND Per PERSSON Per ROSEN Johanna HULTMAN Lars 都时禹 黄政仁 黄庆 | 2019 | 无机材料学报2019，34，1： | 14 |
| 2 | A review of road extraction from remote sensing images显示文摘As a significant role for traffic management,city planning,road monitoring,GPS navigation and map updating,the technology of road extraction from a remote sensing(RS) image has been a hot research topic in recent years.In this paper,after analyzing different road features and road models,the road extraction methods were classified into the classification-based methods,knowledge-based methods,mathematical morphology,active contour model,and dynamic programming.Firstly,the road features,road model,existing difficulties and interference factors for road extraction were analyzed.Secondly,the principle of road extraction,the advantages and disadvantages of various methods and research achievements were briefly highlighted.Then,the comparisons of the different road extraction algorithms were performed,including road features,test samples and shortcomings.Finally,the research results in recent years were summarized emphatically.It is obvious that only using one kind of road features is hard to get an excellent extraction effect.Hence,in order to get good results,the road extraction should combine multiple methods according to the real applications.In the future,how to realize the complete road extraction from a RS image is still an essential but challenging and important research topic. | Weixing Wang Nan Yang Yi Zhang Fengping Wang Ting Cao Patrik Eklund | 2016 | Journal of Traffic and Transportation Engineering(English Edition)2016，3，3： | 9 |
| 3 | Classification of Short Time Series in Early Parkinson’s Disease With Deep Learning of Fuzzy Recurrence Plots显示文摘There are many techniques using sensors and wearable devices for detecting and monitoring patients with Parkinson’s disease(PD).A recent development is the utilization of human interaction with computer keyboards for analyzing and identifying motor signs in the early stages of the disease.Current designs for classification of time series of computer-key hold durations recorded from healthy control and PD subjects require the time series of length to be considerably long.With an attempt to avoid discomfort to participants in performing long physical tasks for data recording,this paper introduces the use of fuzzy recurrence plots of very short time series as input data for the machine training and classification with long short-term memory(LSTM)neural networks.Being an original approach that is able to both significantly increase the feature dimensions and provides the property of deterministic dynamical systems of very short time series for information processing carried out by an LSTM layer architecture,fuzzy recurrence plots provide promising results and outperform the direct input of the time series for the classification of healthy control and early PD subjects. | Tuan D.Pham Karin Wardell Anders Eklund Goran Salerud | 2019 | IEEE/CAA Journal of Automatica Sinica2019，6，6： | 8 |
| 4 | A Research-Based Teacher Education in Finland --A Dilemma for the Students显示文摘 | Gunilla Eklund | 2014 | Psychology Research2014，4，7： | 3 |
| 5 | 作为发展中国家热带环境毒理学生物测定的浮萍(Lemna aequinoctialis)显示文摘在泰国和菲律宾采集了热带浮萍Lemna aequinoctialis Wel-witsch(Lemnaceae),以便发展一种有效的热带环境毒理学生物测定法。调查了生态毒理学生长试验的最佳条件,并且采用结果试验手册检验了重金属(Cd^(2+)、Cr^(6+)、Cu^(2+)、Hg^(2+)、Zn^(2+))、ClO^(3-)、3,5-二氯苯酚及苯酚对两种浮萍生长的影响。对生长的影响通过单位面积生物量和产生的叶片数量(类叶过程)96小时EC50值来检测。两种浮萍对所检验化合物的敏感性非常相似。Cd^(2+)、Cu^(2+)和Hg^(2+)的毒性最大,ClO^(3-)和苯酚的毒性最弱,Cr^(6+)和Zn^(2+)具有中等毒性。 | Bengt-Erik Bengtsson Britta Eklund Juvy P.Bongo 王宏 | 1999 | 人类环境杂志1999，28，2： | 2 |
| 6 | Determination of basal ileal endogenous losses and standardized ileal digestibility of amino acids in barley fed to growing pigs显示文摘Background: Basal ileal endogenous amino acid(AA) losses(IAA_(end)) and standardized ileal digestibility(SID) values of cereal grains, such as barley, are apparently underestimated when determined according to the nitrogen(N)-free method. Regression analysis between the dietary apparent ileal digestible content(c AID) and total crude protein(CP) and AA can be considered as alternative approach to obtain more accurate values for IAA_(end)and SID of AA in cereal grains.Methods: Eight hulled barley genotypes were used, with barley being the only source of CP and AA in the assay diets. The diets contained 95 % as-fed of these eight barley genotypes each, ranging in CP content between 109.1 and 123.8 g/kg dry matter(DM). Nine ileally T-cannulated barrows, average body weight(BW) 30 ± 2 kg, were allotted to a row-column design comprising eight periods with 6 d each and nine pigs. On d 5 and the night of d 6 of every period, ileal digesta were collected for a total of 12 h. The IAA_(end) and the SID were determined by linear regression analysis between c AID and total dietary CP and AA.Results: There exist linear relationships between cA ID and total CP and AA(P < 0.001). The IAA_(end) of CP, Lys, Met, Thr and Trp amounted to 35.34, 1.08, 0.25, 1.02 and 0.38 g/kg DM intake(DMI), respectively, which are greater compared to average IAA_(end) determined previously under N-free feeding conditions. The SID of CP, Lys, Met, Thr and Trp was 90,79, 85, 79 and 86 %, respectively, and was greater when compared to tabulated values. Moreover, these SID values were greater than those reported in literature, based on correction of apparent ileal digestibility(AID) of CP and AA for their IAA_(end)values. Summarized, the results of the present regression analysis indicate greater IAA_(end)in barley-based diets compared to those obtained by N-free feeding.Conclusions: For low-protein feed ingredients like barley the regression method may be preferred over correction of AID values for their IAA_(end)determined under N-free feeding conditions, as intercepts and slopes of the linear regression equations between cA ID and total dietary CP and AA provide direct estimates of IAA_(end)and SID of CP and AA in the presence of the assay feed ingredient. | Hanna Katharina Spindler Rainer Mosenthin Pia Rosenfelder Henry J?rgensen Knud Erik Bach Knudsen Meike Eklund | 2017 | Journal of Animal Science and Biotechnology2017，8，1： | 2 |
| 7 | Electrochemical Lithium Storage Performance of Molten Salt Derived V_(2)SnC MAX Phase显示文摘MAX phases are gaining attention as precursors of two-dimensional MXenes that are intensively pursued in applications for electrochemical energy storage.Here,we report the preparation of V_(2)SnC MAX phase by the molten salt method.V_(2)SnC is investigated as a lithium storage anode,showing a high gravimetric capacity of 490 mAh g−1 and volumetric capacity of 570 mAh cm^(−3) as well as superior rate performance of 95 mAh g^(−1)(110 mAh cm^(−3))at 50 C,surpassing the ever-reported performance of MAX phase anodes.Sup-ported by operando X-ray diffraction and density functional theory,a charge storage mechanism with dual redox reaction is proposed with a Sn-Li(de)alloying reaction that occurs at the edge sites of V_(2)SnC particles where Sn atoms are exposed to the electrolyte followed by a redox reaction that occurs at V_(2)C layers with Li.This study offers promise of using MAX phases with M-site and A-site elements that are redox active as high-rate lithium storage materials. | Youbing Li Guoliang Ma Hui Shao Peng Xiao Jun Lu Jin Xu Jinrong Hou Ke Chen Xiao Zhang Mian Li Per OÅPersson Lars Hultman Per Eklund Shiyu Du Zhifang Chai Zhengren Huang Na Jin Jiwei Ma Ying Liu Zifeng Lin Qing Huang | 2021 | Nano-Micro Letters2021，13，10： | 2 |
| 8 | Reliability and reproducibility issues in DNA microarray measurements显示文摘 | Draghici S Khatri P Eklund AC | 2006 | Trends Genet2006，22，2： | 1 |
| 9 | Review on toxicity testing with marine macroalgae and the need for method standardization-exemplified with copper and phenol显示文摘 | Eklund B T Kautsky L | 2003 | Mar Pollut Bull2003，46，2： | 1 |
| 10 | A signature of chromosomal instability inferred from gene expression profiles predicts clinicaloutcome in multiple human cancers 显示文摘 | Carter SL Eklund AC Kohane IS | 2006 | Nat Genet2006，38，9： | 1 |
| 11 | Cloning of a cDNAencoding a human DNA-binding protein similar to ribosomalprotein S1显示文摘 | EKLUND E A LEE S W SKALNIK D G | 1995 | Gene1995，155，2： | 1 |
| 12 | The use of a fixative in combination with cationic starch in peroxide - bleached TMP显示文摘 | Bobacka V Kreutznm N Eklund D | 1999 | Journal of Pulp and Paper Science1999，25，3： | 1 |
| 13 | Tie receptors and their angiopoietin ligands are context-dependent regulators of vascular remodeling 显示文摘 | Eklund L Olsen BR | 2006 | Exp Cell Res2006，312，5： | 1 |
| 14 | VEGF and angiopoietin signaling in tumor angiogenesis and metastasis 显示文摘 | Saharinen P Eklund L Pulkki K | 2011 | Trends Mol Med2011，17，7： | 1 |
| 15 | Both long and brief maternal separation produces persistent changes in tissue levels of brain monoamines in middle - aged female rats 显示文摘 | ARBOREL1US L EKLUND M B | 2007 | Neuroscienee2007，145，2： | 1 |
| 16 | Electromyographic latency changes in the ankle musculature during inversion moments 显示文摘 | Lynch SA Eklund U Gottlieb D | 1996 | Am J Sports Med1996，24，3： | 1 |
| 17 | Notable relationship between the level of tumor marker TPS in serum and survival in breast cancer 显示文摘 | Bremer K Eklund G Bjorklund B | 1996 | Anticancer Res1996，16，： | 1 |
| 18 | Comparison of esomeprazole 40mg once daily for the healing of reflux esophagitis 显示文摘 | Labenz J Naucler E Eklund A | 2003 | Gut2003，52，1： | 1 |
| 19 | Peritoneal dialysis ac- cess: a comparison of peritoneosccpic and surgical insertion techniques 显示文摘 | Eklund B Groop PH Halme L | 1998 | Scand Urol Nephro!1998，32，6： | 1 |
| 20 | VEGF and angiopoietin sig- naling in tumor angiogenesis and metastasis显示文摘 | Saharinen P Eklund L Pulkki K | 2011 | Trends in Molecular Medicine2011，17，7： | 1 |
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