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186篇 您的检索式:作者名="Tane"
    题名 作者 年代 出处 被引量
1Electronic structure of the SrAl_2O_4:Eu^(2+) persistent luminescence material显示文摘The electronic structure of the strontium aluminate (SrAl2O4:Eu2+) materials was studied with a combined experimental and theoretical approach. The UV-VUV synchrotron radiation was applied in the experimental study while the electronic structure of the non-optimized and optimized crystal structure were investigated theoretically by using the density functional theory. The structure of the va- lence and conduction bands as well as the band gap energy of the material together with the position of the Eu2+ 4f7 8S7/2 ground state were calculated. The calculated band gap energy (6.4 eV) agreed well with the experimental value of 6.6 eV. The valence band consisted mainly of oxygen states whereas the bottom of the conduction band of strontium states. In agreement with the experimental results, the calculated 4f7 8S7/2 ground state of Eu2+ lies in the energy gap of the host. The position of the 4f7 ground state depended on the Coulomb repulsion strength. The position of the 4f7 ground state with respect to the valence and conduction bands was discussed using theoretical and experimental evidence available.Jorma Hls Taneli Laamanen Mika Lastusaari Janne Niittykoski Pavel Novák 2009Journal of Rare Earths2009,27,4:9
2鄱阳湖流域综合规划与管理技术显示文摘从80年代开始实施的江西省山江湖工程是一项针对鄱阳湖流域可持续发展的流域综合管理工程。本文回顾了山江湖工程10多年来实施流域管理战略的过程,分析了鄱阳湖流域生态系统恢复的发展阶段和新时期流域综合规划和管理的战略思想,同时提出了建立鄱阳湖综合流域管理信息共享平台和一种对流域生境进行制图以及对景观生态系统进行建模的综合评价方法。戴星照 方豫 陈葵 林联盛 廖国朝 HAIKAI Tane 2003江西科学2003,21,3:7
3Synchrotron radiation investigations of the Sr_2MgSi_2O_7:Eu^(2+),R^(3+) persistent luminescence materials显示文摘The electronic and defect energy level structure of polycrystalline Sr2MgSi2O7:Eu2+,R3+ persistent luminescence materials were studied with thermoluminescence and different synchrotron radiation spectroscopies (UV-VUV emission and excitation, X-ray absorption near-edge spectroscopy (XANES) and extended X-ray absorption fine structure (EXAFS)). Special attention was paid on the effect of the R3+ co-dopants on the persistent luminescence properties of the materials. Theoretical calculations using the density functional theory (DFT) were carried out simultaneously with the experimental work. The experimental band gap energy (Eg) value of ca. 7.1 eV agreed very well with the DFT value of 6.7 eV. The variation of the Eg value was attempted to relate with the trap structure as well as with the different properties of the R3+ co-dopants. The trap level energy distribution depended strongly on the R3+ co-dopant except for the shallowest trap energy above the room temperature remaining practically the same, however. The different processes in the mechanism of persistent luminescence from Sr2MgSi2O7:Eu2+,R3+ were assembled and their contributions discussed.Tuomas Aitasalo Jukka Hassinen Jorma Hls Taneli Laamanen Mika Lastusaari Marja Malkamki Janne Niittykoski Pavel Novák 2009Journal of Rare Earths2009,27,4:5
4Review of oxidative stress and antioxidative defense mechanisms in Gossypium hirsutum L.in response to extreme abiotic conditions显示文摘Oxidative stress occurs when crop plants are exposed to extreme abiotic conditions that lead to the excessive production and accumulation of reactive oxygen species(ROS).Those extreme abiotic conditions or stresses include drought,high temperature,heavy metals,salinity,and ultraviolet radiation,and they cause yield and quality losses in crops.ROS are highly reactive species found in nature that can attack plant organelles,metabolites,and molecules by interrupting various metabolic pathways until cell death occurs.Plants have evolved defense mechanisms for the production of antioxidants to detoxify the ROS and to protect the plant against oxidative damage.Modern researches in crop plants revealed that low levels of ROS act as a signal which induces tolerance to environmental extremes by altering the expression of defensive genes.In this review,we summarized the processes involved in ROS production in response to several types of abiotic stress in cotton plants.Furthermore,we discussed the achievements in the understanding and improving oxidative stress tolerance in cotton in recent years.Researches related to plant oxidative stresses have shown excellent potential for the development of stress-tolerant crops.QAMER Zainab CHAUDHARY Muhammad Tanees DU Xiongming HINZE Lori AZHAR Muhammad Tehsee 2021Journal of Cotton Research2021,4,2:4
5High-sensitivity C-reactive protein in paediatric inflammatory bowel disease显示文摘AIM:To study whether high-sensitivity C-reactive protein(hs-CRP) measurement can aid the assessment of disease activity and glucocorticoid treatment in paediatric inflammatory bowel disease(IBD).METHODS:CRP levels were measured in 39 children with IBD undergoing colonoscopy [median age 12.8 years,Crohn's disease(CD) n=20],in 22 other children with IBD followed for acute response to glucocorticoids,and in 33 paediatric non-IBD patients.When standard CRP level was below detection limit(<5mg/L),hs-CRP was analyzed.RESULTS:Sixty-four percent(25/39) of the children with IBD undergoing colonoscopy displayed undetectable(<5mg/L) standard CRP levels.Of these,the hs-CRP measurement could not differentiate between active(median,0.2 mg/L,range,0.007-1.37,n=17) or quiescent(0.1 mg/L,0.01-1.89,n=8,P=NS) disease.Patients with ileocolonic CD had higher CRP levels(14mg/L,0.06-45,n=13) than patients with no ileal involvement(0.18 mg/L,0.01-9,n=7,P<0.01) or ulcerative colitis(UC)(0.13 mg/L,0.007-23,P<0.05).In children with active IBD treated with systemic glucocorticoids,the standard CRP was undetectable in 59% of the patients.The hs-CRP levels did not differ between patients that responded to steroid therapy and in non-responders.CONCLUSION:The measurement of hs-CRP did not prove useful in the assessment of disease activity or glucocorticoid treatment in paediatric IBD patients that had undetectable standard CRP.Marianne Sidoroff Riitta Karikoski Taneli Raivio Erkki Savilahti Kaija-Leena Kolho 2010World Journal of Gastroenterology2010,16,23:3
6Defect aggregates in the Sr_2MgSi_2O_7 persistent luminescence material显示文摘The crystal and electronic structure of the Eu2+ doped and defect containing Sr2MgSi2O7 persistent luminescence material were studied using the density functional theory(DFT) .The defects may act as energy storage or even luminescence quenching centres in these materials,however their role is very difficult to confirm experimentally.The probability of vacancy formation was studied using the total en-ergy of the defect containing host.Significant structural modifications in the environment of the isolated defects,especially the strontium va-cancy,as well as defect aggregates were found.The experimental band gap energy of Sr2MgSi2O7 was well reproduced by the calculations.The defect induced electron traps close to the host's conduction band were found to act as energy storage sites contributing to its efficient per-sistent luminescence.The interactions between the defects were found to modify both the Eu2+ 4f7 ground state energy as well as the trap structure.The effect of charge compensation induced by the rare earth co-doping on the defect structure and energy storage properties of the persistent luminescence materials was discussed.Jorma Hls Taneli Laamanen Mika Lastusaari Pavel Novák 2011Journal of Rare Earths2011,29,12:2
7Per rectal portal scintigraphy as a useful tool for predicting esophageal variceal bleeding in cirrhotic patients显示文摘AIM: To investigate potential roles of per rectal portal scintigraphy in diagnosis of esophageal varices and predicting the risk of bleeding.METHODS: Fifteen normal subjects and fifty cirrhotic patients with endoscopically confirmed esophageal varices were included. Patients were categorized into bleeder and non-bleeder groups according to history of variceal bleeding. All had completed per rectal portal scintigraphy using 99mTechnetium pertechnetate. The shunt index was calculated from the ratio of 99mTechnetium pertechnetate in the heart and the liver. Data were analyzed using Student’s t-test and receiver operating characteristics.RESULTS: Cirrhotic patients showed a higher shunt index than normal subjects (63.80 ± 25.21 vs 13.54 ± 6.46, P < 0.01). Patients with variceal bleeding showed a higher shunt index than those without bleeding (78.45 ± 9.40 vs 49.35 ± 27.72, P < 0.01). A shunt index of over 20% indicated the presence of varices and that of over 60% indicated the risk of variceal bleeding.CONCLUSION: In cirrhotic patients, per rectal portal scintigraphy is a clinically useful test for identifying esophageal varices and risk of variceal bleeding.Taned Chitapanarux Ong-ard Praisontarangkul Satawat Thongsawat Pises Pisespongsa Apinya Leerapun 2007World Journal of Gastroenterology2007,13,5:2
8Goal setting outcomes: Examining the role of goal interaction in influencing the experience and learning outcomes of video game play for earthquake preparedness显示文摘Tanes Z Cho H 2013Computers in Human Behavior2013,29,3:1
9Antimalarial drug interactions of compounds isolated from Kigelia africana (Bignoniaceae) and their synergism with artemether, against the multidrug-resistant W2mef Plasmodium falciparum strain显示文摘Denis Zofou Mathieu Tene Pierre Tane Vincent P. K. Titanji 2012Parasitology Research2012,,2:1
10Compressive properties of lotus- type porous stainless steel显示文摘IDE T TANE M IKEDA T 2006Journal of Materials Research2006,21,1:1
11Effects of simvastatin on bone mineral density and remodeling parameters in postmenapausal osteopenic subjects: 1-year follow-up study显示文摘Tikiz C Tikiz H Taneli F 2005ClinRheumatol2005,24,5:1
12Girolline, an antitumor compound isolated from a sponge, induces G2/M cell cycle arrest and accumulation of polyubiquitinated p53显示文摘Tsukamoto S Yamashita K Tane K 2004Biol Pharm Bull2004,27,5:1
13Effect of treatment on serum brain--derived neurotrophic /actor levels in depressed patients显示文摘Gonul AS Akdeniz F Taneli F 2005Eur Arch Psychiatry Clin Neurosci2005,255,6:1
14显示文摘Ichitsubo T Tane M 2002Acta Materialia2002,50,:1
15Stigmastane derivatives and isovaleryl sucrose esters from Vernonia guineensis (Asteraceae) 显示文摘Tchinda A T Tane P Ayafor J F 2003Phytochemistry2003,63,:1
16Vibration-damping ca- pacity of lotus-type porous magnesium显示文摘Xie Z K Tane M Hyun S K 2006Mater Sci Eng A2006,417,12:1
17显示文摘Tane M Nakajima H 2006Scripta Materialia2006,54,:1
18显示文摘Tane M Ichitsubo T Nakajiama H 2004Acta Materialia2004,52,:1
19Comparison of the effects of alendronate and risedronate on bone mineral density and bone turnover markers in postmenopausal osteoporosis显示文摘Mengu Sarioglu Cigdem Tuzun Zeliha Unlu Canan Tikiz Fatma Taneli B. Sami. Uyanik 2006Rheumatology International2006,,3:1
20显示文摘Tane M Ichitsubo T Hirao M 2004Materials Letters2004,58,:1
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