Guilin University Research Articles

Functionalized milk-protein-coated magnetic nanoparticles for MRI-monitored targeted therapy of pancreatic cancer.

Engineered nanocarriers have emerged as a promising platform for cancer therapy. However, the therapeutic efficacy is limited by low drug loading efficiency, poor passive targeting to tumors, and severe systemic side effects. Herein, we report a new class of nanoconstructs based on milk protein (casein)-coated magnetic iron oxide (CNIO) nanoparticles for targeted and image-guided pancreatic cancer treatment. The tumor-targeting amino-terminal fragment (ATF) of urokinase plasminogen activator and the antitumor drug cisplatin (CDDP) were engineered on this nanoplatform. High drug loading (~25 wt%) and sustained release at physiological conditions were achieved through the exchange and encapsulation strategy. These ATF-CNIO-CDDP nanoparticles demonstrated actively targeted delivery of CDDP to orthotopic pancreatic tumors in mice. The effective accumulation and distribution of ATF-CNIO-CDDP was evidenced by magnetic resonance imaging, based on the T2-weighted contrast resulting from the specific accumulation of ATF-CNIO-CDDP in the tumor. Actively targeted delivery of ATF-CNIO-CDDP led to improved therapeutic efficacy in comparison with free CDDP and nontargeted CNIO-CDDP treatment. Meanwhile, less systemic side effects were observed in the nanocarrier-treated groups than that in the group treated with free CDDP. Hematoxylin and Eosin and Sirius Red staining of tumor sections revealed the possible disruption of stroma during the treatment with ATF-CNIO-CDDP. Overall, our results suggest that ATF-CNIO-CDDP can be an effective theranostic platform for active targeting-enhanced and image-guided cancer treatment while simultaneously reducing the systemic toxicity.

Successive lag synchronization on dynamical networks with communication delay**Project supported by the National Natural Science Foundation of China (Grant No. 61004101), the Natural Science Foundation Program of Guangxi Province, China (Grant No. 2015GXNSFBB139002), the Graduate Innovation Project of Guilin University of Electronic Technology, China (Grant No. GDYCSZ201472), and the Guangxi Colleges and Universities Key Laboratory of Data Analysis and Computation,

In this paper, successive lag synchronization (SLS) on a dynamical network with communication delay is investigated. In order to achieve SLS on the dynamical network with communication delay, we design linear feedback control and adaptive control, respectively. By using the Lyapunov function method, we obtain some sufficient conditions for global stability of SLS. To verify these results, some numerical examples are further presented. This work may find potential applications in consensus of multi-agent systems.

Innovative Experiment Platform Design and Teaching Application of the Internet of Things

By analyzing the current situation of experimental platforms which is based on the Internet of Things (IOT) and the cultivation of talents, we established the talents' cultivating orientation and experiment platform for innovation. In accordance with the requirements of a students' practical and creative ability curriculum, the method of modularization was adopted to design this platform. With this, the platform can basically satisfy the needs of the varying teaching experiments, which can increase opportunities for the students on their comprehensive application. The platform was widely used in experimental and practice teaching in the past three years, such as synthetic experiment, graduate programs, and practice project in Zhongkai University of Agriculture and Engineering, Guilin University of Technology etc. Result shows that the innovation experimental platform has broad application prospects, and effectiveness to meet the requirements of students' in-depth learning and research of IOT technologies. Meanwhile, the platform expanded the students' basic understanding of IOT and improved their innovation.

Effect of Zn particles on ductility of the accumulative roll-bonding composites

1 Key Laboratory of New Processing Technology for Nonferrous Metal & Materials, Ministry of Education, Guilin University of Technology, Guilin 541004, China; 2 State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China; 3 Guangxi Key Laboratory of Universities for Clean Metallurgy and Comprehensive Utilization of Non-ferrous Metal Resources, Guilin 541004, China

Effects of R-site compositions on the meta-magnetic behavior of Tb1 – xPrx(Fe0.4Co0.6)1.88C0.05 (x = 0, 0.8, and 1)**Project supported by the National Natural Science Foundation of China (Grant No. 11104091) and the Funds from Provincial Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guangxi Zhuang Autonomous Region, China (Grant No. 1210908-05-K).

We investigate the low-temperature magnetic properties of intermetallic compounds Tb1 − xPrx(Fe0.4Co0.6)1.88C0.05 (x = 0, 0.8, and 1) by detailed magnetization measurements. Obvious temperature- and field-induced irreversibilities suggest the coexistence of multiple magnetic phases. Sharp magnetization jumps across the antiferromagnetic to ferromagnetic transition are observed only in the Pr-containing samples, indicating that the behavior of the avalanche-like growth of ferromagnetic clusters is mainly related to the light lanthanide Pr ions. In addition, the time relaxation, field sweep rate, and cooling field dependence of magnetization jumps in the sample with x = 1 are consistent with those in the martensitic scenario.

First-principles verification of CuNNi3 and ZnNNi3 as phonon mediated superconductors**Project supported by the Scientific Research Fund of Guilin University of Aerospace Technology, China (Grant No. YJ1410).

Very recently, a new Ni-based antiperovskite nitride superconductor CuNNi3 has been successfully synthesized. We investigate the electronic structures, phonon dispersions, and electron–phonon interactions of CuNNi3 and the isostructual ZnNNi3 by first-principles approach. By analyzing the Eliashberg function we obtain the superconducting transition temperature Tc 3.16 K (3.53 K), which is in good agreement with corresponding experimental Tc 3.2 K (3 K) for CuNNi3 (ZnNNi3). They can be verified as conventional phonon-mediated superconductors.

Single Peak Soliton and Periodic Cusp Wave of the Generalized Schrodinger–Boussinesq Equations* *Supported by National Natural Science Foundation of China under Grant Nos. 11361017, 11161013 and Natural Science Foundation of Guangxi under Grant Nos. 2012GXNSFAA053003, 2013GXNSFAA019010, and Program for Innovative Research Team of Guilin University of Electronic Technology

In this paper, we study peakon, cuspon, smooth soliton and periodic cusp wave of the generalized Schrödinger–Boussinesq equations. Based on the method of dynamical systems, the generalized Schrödinger–Boussinesq equations are shown to have new the parametric representations of peakon, cuspon, smooth soliton and periodic cusp wave solutions. Under different parametric conditions, various sufficient conditions to guarantee the existence of the above solutions are given.

Absorption enhancement and sensing properties of Ag diamond nanoantenna arrays**Project supported by the International Scientific and Technological Cooperation Projects of Guizhou Province, China (Grant No. 20117035) and the Program for Innovative Research Team of Guilin University of Electronic Technology, China (Grant No. IRTGUET).

Noble metal nanoantenna could effectively enhance light absorption and increase detection sensitivity. In this paper, we propose a periodic Ag diamond nanoantenna array to increase the absorption of thin-film solar cells and to improve the detection sensitivity via localized surface plasmon resonance. The effect of nanoantenna arrays on the absorption enhancement is theoretically investigated using the finite difference time domain (FDTD) method with manipulating the spectral response by geometrical parameters of nanoantennas. A maximum absorption enhancement factor of 1.51 has been achieved in this study. In addition, the relation between resonant wavelength (intensity reflectivity) and refractive index is discussed in detail. When detecting the environmental index using resonant wavelengths, a maximum detection sensitivity of about 837 nm/RIU (refractive index unit) and a resolution of about 10−3 RIU can be achieved. Moreover, when using the reflectivity, the sensitivity can be as high as 0.93 AU/RIU. Furthermore, we also have theoretically studied the effectiveness of nanoantennas in distinguishing chemical reagents, solution concentrations, and solution allocation ratios by detecting refractive index. From the results presented in this paper, we conclude that this work might be useful for biosensor detection and other types of detections.

The Magnetic Anisotropy and Complete Phase Diagram of CuFeO2 Measured in a Pulsed High Magnetic Field up to 75T**Supported by the National Natural Science Foundation of China under Grant No 11104091, and the Guangxi Key Laboratory of Information Materials of Guilin University of Electronic Technology under Grant No 1210908-05-K.

The magnetization behavior of a CuFeO2 single crystal grown by the floating zone technique is investigated with a pulsed high magnetic field. We observe a series of field-induced multi-step-like transitions with hysteresis, of which the critical magnetic fields are temperature-dependent and show anisotropy. By using a pulsed high magnetic field up to 75 T, the magnetization behavior shows that the critical transition magnetic fields of spin-flip/flop shift to lower field regions with an increase in temperature. According to the magnetization curves, a complete magnetic phase diagram is depicted.

漓江上游典型森林植被对降水径流的调节作用

PDF HTML阅读 XML下载 导出引用 引用提醒 漓江上游典型森林植被对降水径流的调节作用 DOI: 10.5846/stxb201311262814 作者: 作者单位: 桂林理工大学旅游学院 广西 桂林,桂林理工大学旅游学院 广西 桂林,桂林理工大学旅游学院 广西 桂林,桂林理工大学,广西猫儿山国家级自然保护区管理局 广西 兴安,广西猫儿山国家级自然保护区管理局 广西 兴安 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金项目(30860058, 41261006);国家科技支撑计划课题(2012BAC16B04);广西科技攻关计划课题(桂科攻1298006-3) The regulation effect of typical forest on rainfall-runoff in upper reaches of Lijiang River Author: Affiliation: Guilin University of technology,Guilin university of technology,Guilin university of technology,,, Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:利用野外同步长期定位观测林外降雨、地表径流和河川径流的方法,对漓江上游典型森林植被的生态水文过程进行观测研究。结果表明:1)流域降水年内分配极不均匀,50a年降雨量总体变化趋势不明显。林冠截留受林外降雨特征的影响,也与植被类型密切相关。2)地表径流平均滞后时间为70 min。在连续降雨的情况下,降雨滞后效应不再明显,甚至出现地表径流与降雨同步的现象,小降雨可能产生大的地表径流,从而加大流域在雨季发生洪灾的风险。3)湿季径流系数略大于旱季,干季降水量减少,且森林植被消耗大量水分,减少了枯水期径流的产生,增大发生旱灾的风险。森林植被延长河川径流持续时间,使一次持续18 d的降水过程形成的径流,在降水停止后能延续24 d。降雨后退水持续时间与前期降水及后期降水叠加有关。目的为揭示漓江上游森林植被对降水径流的调节作用,客观评估漓江上游水资源潜力、加强流域水资源管理和森林经营提供科学依据。 Abstract:The relationship between forest and water resources has been a main scientific issue in the study of ecological hydrology, which is also an important theoretic foundation for hydrological prediction and regulation. Different forest vegetations create different canopy structure and micro-environment, which affect the distribution of rainfall among canopy, litter and different soil layers through water interception, water retention and transpiration and exert a great impact on surface runoff and river discharge. Recent studies have showed that the function of forest vegetation in reducing flood peaks during the rainy season and increasing the river flow in the dry season might be exaggerated. The relationship between forest vegetation and river flow still needs further confirmation. Lijiang River was a core mountain-water scenic spot in Guilin. Precipitation in Lijiang river basin was abundant, but its distribution within the year was irregular and rainfall mainly happened in rainy season (from March to August). Forest vegetation in the basin plays an important ecological and hydrological regulating function. In this research, data was collected in typical forest vegetation in upper reaches of Lijiang River in Mao'er Mountain National Nature Reserve, Guangxi Province. Hydrological processes, such as rainfall, surface runoff and river flow were monitored and analyzed in typical forests of Mao'er Mountain. The results showed that, 1)The distribution of annual and inter-annual precipitation was irregular revealed by statistical analysis of annual precipitation. The rainfall intensity and the rainfall frequency in the rainy season were heavy and the rainfall in the dry season (from September to February of the following year) accounts for only 17.61% of the annual total precipitation.No significant trend was found for inter-annual precipitation in the last 50 years. The canopy interception was greatly related with rainfall characteristics and forest vegetation. 2)Forest ecosystems had complex canopy structure and exerted a great impact on rainfall redistribution and the average lag time of surface runoff was 70 min. With continuous rainfall, the lagging effect might not be obvious and the surface runoff and the rainfall appeared at the same time, which largely increased the probability of generating heavy runoff after light rain and also the risk of flood in rainy season. 3)The runoff coefficient in dry season was lower than that in rainy season because of less rainfall and more evapo-transpiration, which increased the risk of serious drought. Forest vegetation put off the peak of river flow behind, extended the runoff duration for 24 days with 18 days of continuous rainfall. For a long time, due to the different geographical environment, soil conditions and forest structure has different influence on the redistribution of precipitation, the formation process of surface runoff, underground runoff as well as evaporation, which lead to the relationships of forest vegetation, surface runoff, and river flow are still controversial in the academia. This study would provide scientific basis for better understanding of the relationships between forest vegetation and its hydrological effects, helping to facilitate water resources and achieving wise forest management in upper reaches of Lijiang River. 参考文献 相似文献 引证文献

REE Geochemical Characteristics of Two Granite‐Derived Weathering Profiles, Guangxi, South China: Implications for the Formation of the Ion Adsorption Type REE Deposit

Acta Geologica Sinica - English EditionVolume 88, Issue s2 p. 433-434 Meeting Abstracts REE Geochemical Characteristics of Two Granite-Derived Weathering Profiles, Guangxi, South China: Implications for the Formation of the Ion Adsorption Type REE Deposit Wei FU, Corresponding Author Wei FU Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration, Guilin, Guangxi, 541004 China Department of Earth Sciences, Guilin University of Technology, Guilin, Guangxi, 541004 ChinaCorresponding author. E-mail: fuwei@glut.edu.cnSearch for more papers by this authorXiaodong YAN, Xiaodong YAN The Fourth Geological Team, Guangxi Bureau of Geology and Mineral Exploration, Nanning, Guangxi, 530031 ChinaSearch for more papers by this authorWei LI, Wei LI The Fourth Geological Team, Guangxi Bureau of Geology and Mineral Exploration, Nanning, Guangxi, 530031 ChinaSearch for more papers by this authorYaqian ZHANG, Yaqian ZHANG Department of Earth Sciences, Guilin University of Technology, Guilin, Guangxi, 541004 ChinaSearch for more papers by this authorZeng Xiangwei, Zeng Xiangwei Department of Earth Sciences, Guilin University of Technology, Guilin, Guangxi, 541004 ChinaSearch for more papers by this author Wei FU, Corresponding Author Wei FU Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration, Guilin, Guangxi, 541004 China Department of Earth Sciences, Guilin University of Technology, Guilin, Guangxi, 541004 ChinaCorresponding author. E-mail: fuwei@glut.edu.cnSearch for more papers by this authorXiaodong YAN, Xiaodong YAN The Fourth Geological Team, Guangxi Bureau of Geology and Mineral Exploration, Nanning, Guangxi, 530031 ChinaSearch for more papers by this authorWei LI, Wei LI The Fourth Geological Team, Guangxi Bureau of Geology and Mineral Exploration, Nanning, Guangxi, 530031 ChinaSearch for more papers by this authorYaqian ZHANG, Yaqian ZHANG Department of Earth Sciences, Guilin University of Technology, Guilin, Guangxi, 541004 ChinaSearch for more papers by this authorZeng Xiangwei, Zeng Xiangwei Department of Earth Sciences, Guilin University of Technology, Guilin, Guangxi, 541004 ChinaSearch for more papers by this author First published: 29 December 2014 https://doi.org/10.1111/1755-6724.12373_10AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume88, Issues2Special Issue: Meeting Abstracts: The 14th Quadrennial International Association on the Genesis of Ore Deposits Symposium. August 19–22, 2014, Kunming, ChinaDecember 2014Pages 433-434 RelatedInformation

China's Progress in Prospecting for Concealed Deposits by Applying Geo‐electrochemical Method

Acta Geologica Sinica - English EditionVolume 88, Issue s2 p. 1309-1310 Meeting Abstracts China's Progress in Prospecting for Concealed Deposits by Applying Geo-electrochemical Method Wei YAN, Corresponding Author Wei YAN Guilin University of Technology, Guilin 541004 ChinaCorresponding author. E-mail: zhangyoujun001@126.comSearch for more papers by this authorYoujun ZHANG, Youjun ZHANG Guilin University of Technology, Guilin 541004 ChinaSearch for more papers by this authorXianrong LUO, Xianrong LUO Guilin University of Technology, Guilin 541004 ChinaSearch for more papers by this authorYanwei SONG, Yanwei SONG Guilin University of Technology, Guilin 541004 ChinaSearch for more papers by this authorLi Zhifang, Li Zhifang Guilin University of Technology, Guilin 541004 ChinaSearch for more papers by this authorYang GAO, Yang GAO Guilin University of Technology, Guilin 541004 ChinaSearch for more papers by this author Wei YAN, Corresponding Author Wei YAN Guilin University of Technology, Guilin 541004 ChinaCorresponding author. E-mail: zhangyoujun001@126.comSearch for more papers by this authorYoujun ZHANG, Youjun ZHANG Guilin University of Technology, Guilin 541004 ChinaSearch for more papers by this authorXianrong LUO, Xianrong LUO Guilin University of Technology, Guilin 541004 ChinaSearch for more papers by this authorYanwei SONG, Yanwei SONG Guilin University of Technology, Guilin 541004 ChinaSearch for more papers by this authorLi Zhifang, Li Zhifang Guilin University of Technology, Guilin 541004 ChinaSearch for more papers by this authorYang GAO, Yang GAO Guilin University of Technology, Guilin 541004 ChinaSearch for more papers by this author First published: 29 December 2014 https://doi.org/10.1111/1755-6724.12380_43Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume88, Issues2Special Issue: Meeting Abstracts: The 14th Quadrennial International Association on the Genesis of Ore Deposits Symposium. August 19–22, 2014, Kunming, ChinaDecember 2014Pages 1309-1310 RelatedInformation

Research and Design of Cloud-Based Campus-Plus System on Android Platform

Comply with the development trend of the domestic mobile Internet and mobile devices and boom, in order to improve and optimize the school teachers and students working and life in Guilin University of Technology, to promote the exchange of teachers and students, to enrich the lives of teachers and students, especially research and design of Cloud-based campus-plus system on android platform, the Android client school Education Online system perfect butt, perfect integration with the Kingsoft cloud network disk, docking with the microblogging platform based on the Hadoop technology of cloud and some personalization features. Through the Firebug plug-in for Firefox browser Senate online system packet capture analysis, to get access to the data request URL and request parameters, and then to use HttpClient open source library to encapsulate the URL and parameters, initiates a connection request to the server, the last Jsoup and Gson open source library to parse and filter the data to develop a Senate online system client. Hadoop cloud microblogging server using the HTTPS protocol as well as the Json format for communication to transfer data, and also incorporates Kingsoft cloud network disk, in order to meet the daily lives of teachers and students anytime, anywhere communication, share resources with each other.

Exploring Non-Traditional Machining Training

As a new-emerging force of modern manufacturing technology, non-traditional machining plays an important role in cultivating engineering quality, raising innovation ability and innovative consciousness to students. In order to adapt the development of practice teaching of engineering training in higher education, an innovative training mode is explored and implemented to non-traditional machining combined with the actual situation of the Mechanical and Electrical Engineering Training Center of Guilin University of Electronic Technology. The results show that the exploration is feasible completely.

Research on the Renewable Energy Hot Water System in the Subtropical Region and Comparison of their Effectiveness and Benefits in Northern Guangxi: Take Solar Integrated System Design of Higher Institutions’ Dormitories as an Example

This paper is based on the general condition that renewable energy resources used in buildings in Guangxi subtropical regions. By integrating the case of 9# dormitory building in Bowen College, Guilin University of Technology, making compare and contrast to the effectiveness of using ground source heat pump system, air source heat pump system , solar electric water heaters under such condition, taking the effectiveness of using renewable energy resources in air source heat pump system, the author discuss the issue of renewable energy resources system and the integration of buildings and provides some suggestions.

A Survey on Metacognitive Strategy Use in College Oral English Study under Internet Environment—With a Case Study of Guilin University of Technology

This paper researches on the metacognitive strategies use in oral English study under Internet environment, among the non-English major students of Guilin University of Technology. The writer studies the metacognitive strategy problems existing among the students, which has, to some extent, hindered an efficient and effective improvement or their oral English proficiency. To solve these problems, the writer proposes some suggested solutions on how to develop their metacognitive strategies, in hope that online oral English learning will play a decisive role in improving students’ oral competence.

The 3D Virtual Campus Modeling Based on High Resolution Images from Remote Sensors

With the high resolution remotely sensed image and an old map of the Pingfeng campus of Guilin University of Technology, 3D virtual reconstruction, roaming and buildings management of the campus were accomplished by the usage of ArcGIS to get basic geographic information, applying SketchUp to create 3D models and ArcEngine to develop a management information system. This method takes full advantage of existing data sources and can quickly build a 3D visualization information system.

Research on Control Network of LED Public Lighting and Integration Technology of Managerment and Control

In this paper, a integrated control system based on the LonWorks fieldbus to the application of LED public lighting has developed. Advanced control strategy of lighting energy saving has realized in this integrated control system, in order to improve the effect of lighting energy saving and management level. The control network of LED lighting and the specific techniques of integrated control system are mainly focused, including data acquisition, development of lighting control node based on LonWorks, design of lighting control network, implementation of energy saving and management strategy, monitoring and data management of the lighting system. Finally, to verify energy saving effect of the control integrated system and its high efficiency, three campus’s roadway lighting of GuiLin university of electronic technology is taken as the simulated object.

Chinese CHIM – electro-geochemical survey of extensions to the Challenger Gold Mine, South Australia

Effective surface geochemical techniques to help map buried ore deposits are one means of limiting the high cost of unsuccessful holes drilled to test new targets or to define extensions to known orebodies. With this in mind, a version of the CHIM electro-geochemical prospecting technique developed at Guilin University, China was demonstrated at the Challenger Gold Mine in South Australia to test its suitability under Australian conditions. Two survey lines were completed over the projected extension of ore shoots at the mine. The results were inconclusive. Elevated levels but inconsistent results for Au and As were detected at the surface over shoots projected to depths of between 200 and 400 m. Some modification to the equipment is required to make the system more robust. Ongoing collaboration is planned that will look at improvements to the technique for use in Australian arid conditions.