检索结果-南通市图书馆

Full recovery from chronic headache and hypopituitarism caused by lymphocytic hypophysitis:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2022年第3期10卷 1041-1049页

作者： mao-guang Yang Han-Qing cai Si-Si Wang Lin Liu Chun-Mei Wang Department of Endocrinology The Second Hospital of Jilin UniversityChangchun 130000Jilin ProvinceChina Department of Radiology The First Hospital of Jilin UniversityChangchun 130000Jilin ProvinceChina

BACKGROUND Lymphocytic hypophysitis(LYH)is an important condition to consider in the differential diagnosis of patients with a pituitary *** main clinical manifestations of LYH include headache,symptoms related to sellar compression,hypopituitarism,diabetes insipidus and ***,which is a frequent complaint of patients with LYH,is thought to be related to the occupying effect of the pituitary mass and is rapidly resolved with a good outcome after timely and adequate glucocorticoid treatment or *** SUMMARY Here,we report a patient with LYH whose initial symptom was headache and whose pituitary function assessment showed the presence of secondary hypoadrenalism,central hypothyroidism and hypogonadotropic *** magnetic resonance imaging showed symmetrical enlargement of the pituitary gland with suprasellar extension in a dumbbell shape with significant homogeneous enhancement after gadolinium *** size of the gland was approximately 17.7 mm×14.3 mm×13.8 *** pituitary stalk was thickened without deviation,and there was an elevation of the optimal *** lesion grew bilaterally toward the cavernous sinuses,and the parasternal dural caudal sign was *** patient presented with repeatedly worsening and prolonged headaches three times even though the hypopituitarism had fully resolved after glucocorticoid treatment during this *** This rare headache regression suggests that patients with chronic headaches should also be alerted to the possibility of LYH.

关键词： Lymphocytic hypophysitis Magnetic resonance imaging Hypopituitarism Headache Glucocorticoid Case report

A database of spectral energy distributions of progenitors of core-collapse supernovae

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2021年第9期21卷 1-10页

作者： Zhong-Mu Li cai-Yan mao Institute for Astronomy and History of Science and Technology Dali UniversityDali 671003China

This paper presents a database of the spectroscopic-and photometric-spectral energy distributions(spec-SEDs and phot-SEDs respectively)of the progenitors of core-collapse supernovae(CCSNe).Both binary-and single-star progenitors are included in the *** database covers the initial metallicity(Z)range of 0.0001-0.03,mass range of 8-25 M⊙,binary mass ratio range of 0-1,and orbital period range of 0.1-10000 *** low-resolution spec-SEDs and phot-SEDs of single-and binary-star CCSN progenitors are included in the *** data can be used for studying the basic parameters,e.g.,metallicity,age,and initial and final masses of CCSN *** can also be used for studying the effects of different factors on the determination of parameters of CCSN *** the database is utilized for fitting the SEDs of binary-star CCSN progenitors,it is strongly suggested to determine the metallicity and orbital period in advance,but this is not necessary for single-star progenitors.

关键词： (stars:)supernovae:general astronomical databases (stars:)binaries:general

BSEC Method for Unveiling Open Clusters and its Application to Gaia DR3:83 New Clusters

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2024年第5期24卷 169-184页

作者： Zhong-Mu Li cai-Yan mao Institute of Astronomy and Information Dali UniversityDali 671003China

Open clusters(OCs) are common in the Milky Way, but most of them remain undiscovered. There are numerous techniques, including some machine-learning algorithms, available for the exploration of OCs. However, each method has its limitations and therefore, different approaches to discovering OCs hold significant values. We develop a comprehensive approach method to automatically explore the data space and identify potential OC candidates with relatively reliable membership determination. This approach combines the techniques of Hierarchical Density-Based Spatial Clustering of Applications with Noise, Gaussian mixture model, and a novel cluster member identification technique, color excess constraint. The new method exhibits efficiency in detecting OCs while ensuring precise determination of cluster memberships. Because the main feature of this technique is to add an extra constraint(EC) for the members of cluster candidates using the homogeneity of color excess,compared to typical blind search codes, it is called Blind Search-Extra Constraint(BSEC) method. It is successfully applied to the Gaia Data Release 3, and 83 new OCs are found, whose color–magnitude diagrams(CMDs) are fitted well to the isochrones. In addition, this study reports 621 new OC candidates with discernible main sequence or red giant branch. It is shown that BSEC technique can discard some false negatives of previous works, which takes about three percentage of known clusters. It shows that as an EC, the color excess(or twocolor) constraint is useful for removing fake cluster member stars from the clusters that are identified from the positions and proper motions of stars, and getting more precise CMDs, when differential reddening of member stars of a cluster is not large(e.g., ΔE(G_(BP)-G_(RP)) < 0.5 mag). It makes the CMDs of 15% clusters clearer(in particular for the region near turnoff) and therefore is helpful for CMD and stellar population studies. Our result suggests that the color excess con

关键词： Galaxy stellar content-(Galaxy:)open clusters and associations general-stars fundamental parameters

Hierarchically 1D CdS decorated on 2D perovskite-type La_(2)Ti_(2)O_(7) nanosheet hybrids with enhanced photocatalytic performance

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2021年第5期40卷 1067-1076页

作者： Liang mao Xiao-Yan cai Ming-Shan Zhu School of Materials Science and Physics China University of Mining and TechnologyXuzhou 221116China Jiangsu Province Engineering Laboratory of High Efficient Energy Storage Technology and Equipment China University of Mining and TechnologyXuzhou 221116China School of Environment Jinan UniversityGuangzhou 511443China

In this paper,a heterojunction of hierarchically one-dimensional(1D)cadmium sulfide(CdS)nanowires decorated on the two-dimensional(2D) La_(2)Ti_(2)O_(7) (LTO)has been fabricated by a simple two-step hydrothermal *** structure,morphology and surface chemical composition of CdS/LTO were studied by a variety of characterizations,in which the X-ray photoelectron spectroscopy(XPS)results showed a strong interaction between CdS and LTO through S-O *** typeⅡband alignment of CdS/LTO for favorable electron transfer from CdS to LTO and hole transfer from LTO to CdS was clarified by ultraviolet-visible(UV-Vis)diffuse reflectance spectroscopy and Mott-Schottky(M-S)plot *** the absence of any co-catalyst,H2 production from water splitting and Rhodamine B(RhB)decomposition in aqueous solution were carried out to evaluate the photocatalytic activities,showing that the photocatalytic performance of CdS/LTO was superior to that of pure LTO and CdS under visible light and simulated *** optimal CdS content in the CdS/LTO system was determined to be 7.5 wt%.The present results show an effective pathway to design a 1D/2D heterojunction photocatalyst in the face of overwhelming problems of energy crisis and environmental pollution.

关键词： Cadmium sulfide Lanthanum titanium oxide Heterojunction H_(2)production Dyes degradation

Design and Application of a DSP Controller for Giant Magnetostrictive Smart Structure

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Aeronautics 2006年第B12期19卷 220-223页

作者： ZHANG Wen-guang mao Jian-qin School of Mechanical Engineering and Automation Beijing University of Aeronautics and Astronautics Beijing 100083 China

It is proposed a digital signal processing （DSP） controller used in the control system of six degree-of-freedom （DOF） giant magnetostrictive smart structure （GMSS）. Also are presented the controller design and its implementation, the embedded adaptive least mean-square （LMS） control algorithm and the real-time experiments of GMSS. Three programs are embedded in this controller. Of them are the adaptive LMS control algorithm and the other two which are used to search for the optimal values for the initial weight vectors. Moreover, the work flow and the control approach of the GMSS with the DSP controller are introduced. The experimental results indicate that the DSP controller has better control precision and real-time property, and the damping effect is up to 20 dB-30 dB.

关键词： GMSS DSP active vibration control LMS algorithm

Antifeedant Activity and Active Ingredients Against Plutella xylostella from Momordica charantia Leaves

在线全文

学校读者我要写书评

暂无评论

Agricultural Sciences in China 2008年第12期7卷 1466-1473页

作者： LING Bing WANG Guo-cai YA Ji ZHANG mao-xin LIANG guang-wen Laboratory of Insect Ecology South China Agricultural University Guangzhou 510642 P.R.China Institute of Traditional Chinese Medicine ＆ Natural Products Jinan University Guangzhou 510632 P.R.China

With the bioguided fractionation of the ethanol extracts from the leaves of Momordica charantia, we obtained two most active compounds against the feeding of the diamondback moth, Plutella xylostella larvae. The antifeedant activity of momordicine Ⅰ and momordicine Ⅱ against the second and the third instar larvae of Plutella xylostella were tested using leaf discs of cabbage in the laboratory. The results showed that momordicin Ⅰ and momordicin Ⅱ had significant antifeedant activity on the larvae of P. xylostella, and momordicin Ⅱ was more active than momordicin Ⅰ. The concentrations for 50% antifeedant effects （AFC50） of momordicin Ⅱ against the second and the third instar larvae of P. xylostella were 76.69 and 116.24μg mL^-1, whereas that of momordicin I was 144.08 and 168.42μg mL^-1, respectively. In addition, momordicin Ⅰ and momordicin Ⅱ had significant inhibitive effect on the rate of weight gain and survival of P. xylostella larvae.

关键词： Momordica charantia Plutella xylostella antifeedant activities momordicin Ⅰ momordicin Ⅱ

基于回环边残差聚焦权重模型的位姿图优化算法

在线全文

学校读者我要写书评

暂无评论

计算机应用研究 2025年第1期42卷 149-155页

作者：冒凡魏国亮蔡洁郑劲康简单上海理工大学光电信息与计算机工程学院上海200093 上海理工大学管理学院上海200093 上海理工大学理学院上海200093

基于图优化的同时定位与建图(SLAM)系统中含有大噪声的回环边,可能严重阻碍优化器迅速收敛到最优解,显著降低定位精确性和地图一致性。因此,针对大噪声回环边的优化算法的鲁棒性至关重要。引入K-means聚类思想,对回环边残差值进行分类,... 详细信息

基于图优化的同时定位与建图(SLAM)系统中含有大噪声的回环边,可能严重阻碍优化器迅速收敛到最优解,显著降低定位精确性和地图一致性。因此,针对大噪声回环边的优化算法的鲁棒性至关重要。引入K-means聚类思想,对回环边残差值进行分类,进而建立了一种新的残差阈值模型,自适应调整回环边在优化时的权重,减少回环边对优化的影响;然后,基于迭代重加权最小二乘的思想形成了RW-RLSPGO算法(residual weighted enhancement for recursive least squares pose graph optimization algorithm,RWRLSPGO);最后,在模拟和真实的PGO数据集上进行蒙特卡罗实验。实验结果表明,RW-RLSPGO算法在准确性和鲁棒性方面都取得了显著的提高,验证了其在大噪声环境下的有效性。

关键词：同时定位与建图位姿图优化回环边大噪声聚类

IDMA based MAI mitigation scheme with low complexity and low latency

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Systems Engineering and Electronics 2012年第6期23卷 791-801页

作者： Zuoliang Yin Xingpeng mao Jun cai Naitong Zhang School of Electronics and Information Engineering Harbin Institute of Technology Harbin 150001 R R. China Department of Computer and Electrical Engineering University of Manitoba Winnipeg R3T 5V6 Canada

High complexity and high latency are key problems for multiuser detection （MUD） to be applied to a mobile station in cellular networks. To tackle these problems, an interleave division multiple access （IDMA） based multiple access scheme, grouped spread IDMA （GSIDMA）, is proposed. In a GSIDMA system, lower complexity and latency for mobile stations can be achieved by appropriately dividing active users into different groups. The system model of GSIDMA is constructed and followed by analysing on its system capacity, complexity and latency, and bit error rate （BER） performance. The extrinsic information transfer （EXIT） chart is used to analyze the convergence behavior of the iteration process. The grouping method and interleavers-reuse issue for GSIDMA are also discussed preliminarily. The analyses and simulation results indicate that the complexity and latency of the proposed scheme are much lower than those of IDMA, whereas its BER performance is close to the latter. The properties of low complexity and low latency make it more feasible for the practical implementation.

关键词： grouped spread interleave division multiple access(GSIDMA) iterative multiuser detector (IMUD) low complexity lowlatency multiple access interference (MAI) mitigation.

Intelligent interaction system based on multimodal conformal triboelectric nanogenerator patch for disabled sports and life

在线全文

学校读者我要写书评

暂无评论

Science China Technological Sciences 2025年

作者： Yuzhang WEN Mengqi ZHANG Zhenning XIE Zida AN Bing LIU Fengxin SUN Tianming ZHAO Zuojun YU Fei WANG Yupeng mao Physical Education Department Northeastern University(Shenyang) Faculty of Robot Science and Engineering Northeastern University Criminal Investigation Police University of China State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences China Ice Sports College Beijing Sport University

Intelligent interaction technology based on advanced sensing units has become a research hotspot. In this paper, an intelligent interaction system (IIS) based on a multimodal conformal triboelectric nanogenerator patch (MCTP) is reported for sports monitoring and life promotion of the disabled. This IIS consists of a cloud-based smart sports recognition program and a smart life application. The porous micro-reinforced structure of polyurethane (PU) Sponge&Ecoflex, and the surface modification of PTFE by coating it with MXene endows the MCTP with excellent electrical properties. It shows good angle and force sensitivities of 1.1 V/°and 1.61 V/N, respectively, and has an ultra-fast response time of 15 ms, meeting the needs of human motion monitoring. The MCTP can also capture the mechanical energy, producing a maximum output power of 139μ*** with the commercial inertial measuring unit (IMU), the MCTP shows better consistency in human joint angle sensing. A precise analysis of wheelchair curling sports monitoring points is achieved by combining the MCTP and the human anatomy model. The cloud-based smart sports recognition program utilizes machine learning to achieve visual feedback on the three throwing technologies of draw, takeout and clearing. In addition, the developed smart life application uses a highsensitivity MCTP-sensor array design to achieve a variety of smart home interactions through simple finger touches. Overall,the IIS integrates the three major functions of smart sports sensing, energy capture, and smart home control, providing important application prospects in the fields of smart sports and human-computer interaction for the disabled.

关键词：