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Search Results: 1 - 7 of 7 matches for " Tuerdi Wumaier "
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Silicon with Clusters of Impurity Atoms as a Novel Material for Optoelectronics and Photovoltaic Energetics  [PDF]
M. K. Bakhadyrhanov, U. X. Sodikov, D. Melibayev, Tuerdi Wumaier, S. V. Koveshnikov, K. A. Khodjanepesov, Jiangxiang Zhan
Journal of Materials Science and Chemical Engineering (MSCE) , 2018, DOI: 10.4236/msce.2018.64017
Abstract: The paper presents unique functional capabilities of silicon with nanoclusters of impurity atoms with various characters. It is shown that, depending on the nature of the clusters, it is possible to expand the spectral diapason of sensitivity towards the IR region and obtain silicon with anomalously high negative mag-netoresistance (Δρ/ρ > 100%) at room temperature. The formation of clusters of impurity atoms with different nature and concentration in the lattice of semiconductor materials is a new approach for obtaining bulk-nanostructured silicon with unique physical properties.
Using ICLAS to Absorption Spectrum of Harmonic Transition of 12CO2
ICLAS测定12CO2的谐跃迁吸收光谱

Gulina-WUMAIER,
古丽娜.乌迈尔
,王燕凌

浙江大学学报(农业与生命科学版) , 2001,
Abstract: 激光腔内吸收光谱技术(ICLAS)被发现以来,已被广泛应用于探测气体、液体、火焰以及等离子体中原子和分子的极弱吸收。其中的一个主要应用是研究分子高振动态的高分辨光谱。主要特征是灵敏度极高,可检测出少量分子微弱的光谱吸收,同时又可以对样品的吸收系数进行直接测量。   ICLAS的工作原理是把吸收样品放入一个连续多模的宽带激光腔内时,由于与频率有关的样品的吸收,使得一些模式的损耗增大,模式的强度降低,从而得到了以宽带激光的发射光谱为基线的吸收线。通过解关于光子数和增益介质上态能级布局数的速率方程组,可以得到在激光开始起振后,tg时刻的多次平均的光强表达式:……
Synthesis and Electrochemical Characterizations of Zinc-doped LiFePO4/C by Carbothermal Reduction
HUA Ning, WANG Chen-Yun, KANG Xue-Ya, Tuerdi, HAN Ying
无机材料学报 , 2010, DOI: 10.3724/sp.j.1077.2010.10105
Abstract: Alien atom doping has been adopted to modify the electrochemical performance of olivine type LiFePO4 for cathode material. Here, we report that zinc-doping can improve the performance of LiFePO4/C immensely by a simple method. LiFePO4/C and Zn-doped LiFePO4/C cathode materials were firstly synthesized by carbothermal reduction method. Physical-chemical characterizations were done by X-ray diffraction, scanning electron microscope and transmittance electron microscope. Electrochemical behavior of the cathode materials were analyzed by using cyclic voltammetry, and galvanostatic measurements were employed to characterize the reaction of lithium ion insertion and de-insertion. ICP and XRD analyses indicate that Zn ions were sufficiently doped in LiFePO4 and did not alter its crystal structure. During de-intercalation and intercalation process of lithium ions, the doped zinc atoms protect the LiFePO4 crystal from shrink. Consequently, the conductivity is enhanced after doping. It is noted that zinc ions doping can improve performance of LiFePO4, especially on the aspect of stable cycle-life at higher C rate.
The first principles and experimental study on Mn-doped LiFePO4
Mn掺杂LiFePO4的第一性原理研究

Dou Jun-Qing,Kang Xue-Ya,Tuerdi Wumair,Hua Ning,Han Ying,
窦俊青
,康雪雅,吐尔迪· 吾买尔,华宁,韩英

物理学报 , 2012,
Abstract: The electronic structures of pure and Mn-doped LiFePO4 are studied using density functional theory (DFT). The results demonstrate that the pure LiFePO4 has a band gap of 0.725 eV, while the 25% Mn doped LiFe0.75Mn0.25PO4 has the smallest band gap (0.469 eV), and the weakest Fe---O and Li---O bond, which indicates that the electronic conductivity and the ionic conductivity of the doped LiFePO4 are improved due to doping. On the other hand, the experimental results also show that the LiFe0.75Mn0.25PO4 has the best electrochemical performance and it delivers a very high capacity of 158 mAh? g-1 and a high energy density of 551 Wh·kg-1.
Relationships between aboveground biomass and environmental factors along an altitude gradient of alpine grassland
不同海拔梯度高寒草地地上生物量与环境因子关系

LI Kai-hui,HU Yu-kun,WANG Xin,FAN Yong-gang,WUMAIER Wu-shou,
李凯辉
,胡玉昆,王鑫,范永刚,吾买尔·吾守

应用生态学报 , 2007,
Abstract: In order to analyze the relationships between aboveground biomass and environmental factors along an altitude gradient of Bayanbulak alpine grassland on the southern slope of Tianshan Mountain, nine plots were selected, with each at 100 m interval of altitude. The results showed that Stipa purpurea and Festuca ovina communities distributed at the altitude from 2460 to 2760 m, and the aboveground biomass were 52.2-75.9 g x m(-2). Kobresia capillifolia + S. purpurea communities distributed at altitude 2860 m, and the aboveground biomass was 53.2 g x m(-2). K. capillifolia, Aichemilla tianschanica and Carex stenocarpa distributed at the altitude from 2860 to 3260 m, and the aboveground biomass was 62.1-107.4 g x m(-2). The mean relative humidity in July and August had greater effects on the aboveground biomass. Altitude had a negative correlation with the aboveground biomass of gramineous functional group, but a positive correlation with that of sedge functional group. The mean air temperature in July and August was the key factor affecting the aboveground biomass of gramineous and sedge functional groups, and the stepwise regression equations were Y = 13.467X - 97.284 and Y = 171.699 - 15.331X, respectively (X represented mean air temperature, and Y represented aboveground biomass). Altitude was negatively correlated with mean air temperature and soil pH value (P < 0.01), and positively correlated with mean relative humidity (P < 0.01) and soil available nitrogen and water content (P < 0.05).
The Biomass of Different Species Communities of Alpine Meadow in Bayinbulak Region
巴音布鲁克高寒草甸不同群落类型的生物量

HU Yu-kun,LI Kai-hui,WANG Xin,FAN Yong-gang,ZHANG Xiao-yan,
胡玉昆
,李凯辉,王鑫,范永刚,张晓艳,吾买尔·吾守,HU Yu-kun,LI Kai-hui,WANG Xin,FAN Yong-gang,ZHANG Xiao-yan,Wumaier·wushou

资源科学 , 2007,
Abstract: 生物量是生态系统获取能量能力的集中体现, 对生态系统结构的形成具有十分重要的影响。草地生态系统是陆地生态系统分布最广的生态类型之一, 在全球变化中的作用非常重要。本文以新疆天山中部的巴音布鲁克高寒草甸为研究对象, 选取了黑花苔草(Carex melantha)、鬼见愁锦鸡儿(Caragana jubata)和线叶嵩草(Kobresia capillifolia) 3种典型的群落类型,开展了生物量研究。结果表明:①黑花苔草群落盖度最大, 为100%, 物种数最低, 每平方米拥有植物8种~11种。鬼见愁锦鸡儿群落盖度次之, 为86.14%, 物种组成丰富, 每平方米拥有植物12种~15种。线叶嵩草群落盖度最低, 55.7%, 每平方米拥有植物13种~16种;②各群落内部的物种丰富度与地上生物量之间无显著关系, 而群落间表现出负相关, 差异极显著;③黑花苔草群落的地下生物量最大, 线叶嵩草群落次之, 鬼见愁锦鸡儿群落最低, 分别为13 608.8g/m2、6 097.8g/m2和2 554.74g/m2;④3种群落的地下生物量呈现出“T”形分布的模式, 且集中分布在0cm~10cm的土层中;⑤3种群落的地上生物量与土壤含水量呈极显著正相关, 地下生物量受相对湿度影响较大,二者也呈极显著正相关。
交互式医学图像控制系统(MIMICS)在下颌骨肿瘤切除及缺损重建中的应用
Application of Materialise’s Interactive Medical Image Control System (Mimics) in the Mandibular Tumor Resection and Defect Reconstruction.

张永富, 居来提·吐尔逊, 买买提吐逊·吐尔地, 姚志涛, 阿迪力江·赛买提, 刘杨
ZHANG Yong-fu
, JULAITI Tuerxun, MAIMAITITUXUN Tuerdi, YAO Zhi-tao, ADILIJIANG Saimaiti, LIU Yang.

- , 2016, DOI: 10.13701/j.cnki.kqyxyj.2016.10.018
Abstract: 摘要 目的:探讨交互式医学图像控制系统(MIMICS)在下颌骨肿瘤切除,腓骨瓣修复重建下颌骨缺损的应用价值,为术前进行精确设计手术方案及达到术后良好的重建效果提供可靠依据。方法:选取2014年11月~2015年12月收治的下颌骨肿瘤需重建的10例患者。术前行上下颌骨及供区小腿螺旋CT扫描,将DICOM数据导入交互式医学图像控制系统(MIMICS),观察肿瘤确定安全范围、模拟肿瘤切除、镜像恢复患侧、腓骨瓣模拟重建、预测重建效果。术中按术前设计方案切除肿瘤、腓骨瓣制备塑形、钛板固定、腓骨瓣固定就位。结果:全部手术按术前模拟顺利完成,移植腓骨瓣术后全部成活。术后1、3、6、9、12 个月随访复查,行曲断或CT复查,结果示10例患者腓骨瓣位置良好,开口度2~3指,供区小腿腓骨创面愈合良好未见明显并发症。患者对术后面部外形及小腿功能的恢复均为满意。结论:在下颌骨肿瘤切除及缺损重建中利用CT影像资料,采用交互式医学图像控制系统(MIMICS)实现在计算机屏幕前制定手术方案,进行术前手术评估和术后重建效果预测,提高下颌骨肿瘤切除的准确性及腓骨重建颌骨的连续性和对称性
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