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| 1 | Advances in Optical Fiber Bragg Grating Sensor Technologies显示文摘作者在光纤维布拉格的发展考察他们的最近的进展栅栏(FBG ) 传感器技术。在纤维栅栏传感器的简短评论以后,几个最新发达的 FBG 传感器被描述。与纤维材料,微观结构和 processing 以后技术的连续发展, FBG 传感器三十年以前在永久栅栏的第一示范以后仍然是有创造性的。 | A. Ping ZHANG Shaorui GAO Guofeng YAN Yinbing BAI | 2012 | Photonic Sensors2012，2，1： | 4 |
| 2 | A New Indicator for Global Food Security Assessment: Harvested Area Rather Than Cropland Area显示文摘Cropland area has long been used as a key indicator of food security.However,grain yield is not solely controlled by the area of the cropland.Therefore,we proposed a new indicator to assess food security.Results show that from 1992 to 2004,the global cropland area increased by 840200 km^(2)(99.4%),but the grain yield increased only by 310 million t(29.1%);and from 2004 to 2015,the cropland area decreased by 39000 km^(2)(4.64%),but the grain yield increased by 370 million t(70.84%).This result showed that grain yield was not linearly correlated with cropland area,and delimiting the threshold of cropland protection may not guarantee food security.Combined with further correlation analysis,we found that the increase in the global grain yield was more closely related to the harvested area(R^(2)=0.94),which indicated that the harvested area is a more scientific and accurate indicator than cropland area in terms of guaranteeing food security.Therefore,if governments want to ensure the food security,they should choose a new and more accurate indicator:harvested area rather than cropland area. | SONG Fengjiao WANG Shijie BAI Xiaoyong WU Luhua WANG Jinfeng LI Chaojun CHEN Huan LUO Xuling XI Huipeng ZHANG Sirui LUO Guofeng YAN Mengqi ZHEN Qingqing | 2022 | Chinese Geographical Science2022，32，2： | 2 |
| 3 | Optimization of contact-mode triboelectric nanogeneration for high energy conversion efficiency显示文摘The rapid growth of flexible and wearable electronics makes it an urgent requirement to develop mobile and sustainable energy sources for these devices. Triboelectric nanogenerator(TENG) stands out for its outstanding performance. However, high output performance and energy conversion efficiency TENG still remains one of the most crucial barriers for practical applications. In this paper, we systematically analyze the relationship of maximum instantaneous output power and energy conversion efficiency with the material parameters, structural parameters and experimental parameters. Firstly, we obtain the explicit equations for the transferred charge, output voltage, output current and maximum instantaneous power from the contactmode model and governing equation. Then it is deeply studied how the material parameters, structure parameters and experimental condition can influence the output performance. Finally, the relationship of energy conversion efficiency with the TENG parameters is investigated to provide guidance for rational design of TENG. The high efficiency energy source could greatly promote the development of flexible electronics. | Huamin CHEN Yun XU Lin BAI Jian LI Tong LI Chen ZHAO Jiushuang ZHANG Guofeng SONG | 2018 | Science China(Information Sciences)2018，61，6： | 1 |
| 4 | Clinical application of local ultrasound hyperthermia combined with systemic chemotherapy in oral maxillofacial-head and neck malignant tumors显示文摘 | Guoxin Ren Wei Guo Yazhu Chen Guofeng Shen Dongxia Ye Jingfeng Bai | 2008 | 中国口腔颌面外科杂志2008，6，B05： | 1 |
| 5 | The modification of activated carbons and the pore structure effect on enrichment of coal-bed methane 显示文摘 | Zhao Guofeng Bai Peng Zhu Hongmei | 2008 | Asia-Pac J Chem Eng2008，3，3： | 1 |
| 6 | Effects of different parameters in tb ,' fast scanning method for HIFU treatment显示文摘 | Qiao Shan Shen Guofeng Bai Jingfeng ct al | 2012 | J Med Phys2012，39，10： | 1 |
| 7 | The characterization of an ultrasound spherical phased array for the ablation of deep-seated tissue显示文摘 | Ji Xiang Shen Guofeng Bai Jingfeng | 2012 | Appl Acoust2012，24，5： | 1 |
| 8 | Special focus on deep learning for computer vision显示文摘Deep learning-based computer vision plays an increasingly important role in developing the highperformance intelligent perception systems such as self-driving vehicles,unmanned surface vehicles,robots,intelligent human-machine interactions,and visual surveillance.However,more effort has to be done to improve the performance so that deep learning-based computer vision can satisfy the rigorous demands of the intelligent perception systems.This special focus,which will also appear in next few issues,aims at collecting new ideas about deep learning-based computer vision to improve the performance in terms of accuracy and/or efficiency. | Yanwei PANG Xiang BAI Guofeng ZHANG | 2019 | Science China(Information Sciences)2019，62，12： | 1 |
| 9 | Computer-assisted technique for the design and manufacture of realistic facial prostheses显示文摘 | Zhihong Feng Yan Dong Yimin Zhao Shizhu Bai Bing Zhou Yunpeng Bi Guofeng Wu | 2009 | British Journal of Oral & Maxillofacial Surgery2009，，2： | 1 |
| 10 | The Modi-fication of Activated Carbons and the Pore Structure Effect onEnrichment of Coal-Bed Methane 显示文摘 | Zhao Guofeng Bai Peng Zhu Hongmei | 2008 | Asia-Pac J Chem Eng2008，3，3： | 1 |
| 11 | The role of surface charges in the blinking mechanisms and quantum-confined Stark effect of single colloidal quantum dots显示文摘The two frequently observed phenomena,photoluminescence(PL)blinking and quantum-confined Stark effect(QCSE)-induced spectral diffusion,are not conducive to the applications of colloidal quantum dots(QDs).It remains elusive how these two phenomena are linked to each other.Unraveling the potential link between blinking and QCSE could facilitate the adoption of appropriate strategies that can simultaneously suppress both PL blinking and spectral diffusion.In this work,we investigated the blinking mechanism and QCSE of single CdSe/CdS/ZnS QDs in the presence of positive and negative surface charges using single-dot PL spectroscopy.We found that the negative surface charges can simultaneously suppress PL blinking and spectral diffusion of single QDs.On the other hand,the positive surface charges could change the blinking mechanisms of QDs from Auger-blinking to band-edge carrier(BC)-blinking.Two types of QCSE were observed,and a significant QCSE-induced spectral broadening of 5.25 nm was measured,which could be attributed to the hopping of surface charges between different surface-trap sites.Based on these findings,several theoretical models are proposed to explain various phenomena observed. | Jialu Li Dengfeng Wang Guofeng Zhang Changgang Yang Wenli Guo Xue Han Xiuqing Bai Ruiyun Chen Chengbing Qin Jianyong Hu Liantuan Xiao Suotang Jia | 2022 | Nano Research2022，15，8： | 0 |
| 12 | Chromosome-level assembly and analysis of the Thymus genome provide insights into glandular secretory trichome formation and monoterpenoid biosynthesis in thyme显示文摘Thyme has medicinal and aromatic value because of its potent antimicrobial and antioxidant properties.However,the absence of a fully sequenced thyme genome limits functional genomic studies of Chinese native thymes.Thymus quinquecostatus Celak.,which contains large amounts of bioactive monoterpenes suchas thymol and carvacrol,is an important wild medicinal and aromatic plant in China.Monoterpenoids are abundant in glandular secretory trichomes.Here,high-fidelity and chromatin conformation capture technologies were used to assemble and annotate the T.quinquecostatus genome at the chromosome level.The 13 chromosomes of T.quinquecostatus had a total length of 528.66 Mb,a contig N50 of 8.06 Mb,and a BUSCO score of 97.34%.We found that T.quinquecostatus had experienced two whole-genome duplications,with the most recent event occurring4.34 million years ago.Deep analyses of the genome,in conjunction with comparative genomic,phylogenetic,transcriptomic,and metabonomic studies,uncovered many regulatory factors and genes related to monoterpenoids and glandular secretory trichome development.Genes encoding terpene synthase(TPS),cytochrome P450 monooxygenases(CYPs),short-chain dehydrogenase/reductase(SDR),R2R3-MYB,and homeodomain-leucine zipper(HD-ZIP)IV were among those present in the T.quinquecostatus genome.Notably,Tq02G002290.1(TqTPS1)was shown to encode the terpene synthase responsible for catalyzing production of the main monoterpene product g-terpinene from geranyl diphosphate(GPP).Our study provides significant insight into the mechanisms of glandular secretory trichome formation and monoterpenoid biosynthesis in thyme.This work will facilitate the development of molecular breeding tools to enhance the production of bioactive secondary metabolites in Lamiaceae. | Meiyu Sun Yanan Zhang Li Zhu Ningning Liu Hongtong Bai Guofeng Sun Jinzheng Zhang Lei Shi | 2022 | Plant Communications2022，3，6： | 0 |
| 13 | On acoustic performance for viscoelastic coating containing axisymmetric cavities using the multiple scattering method显示文摘A semi-analytical/numerical model based on the multiple scattering(MS) method has been established for analyzing the effect of acoustic performance on main energy attenuation mechanism in viscoelastic coating containing axisymmetric cavities.The basic functions of stress and displacement of the axisymmetric cavity surface are derived in the system of spherical coordinates.The transition matrix between the incident wave and the scattering wave are obtained by the numerical integral of the basic functions of the cavity surface.The reflection,transmission and absorption performance of viscoelastic materials containing periodic cavities are calculated using the MS method and the wave propagating theory of the multi-layered medium.The results indicate that low frequency energy is mainly attenuated through cavity resonance.The resonant properties are found to be very sensitive to the boundary conditions.The coupling of the double-cavity is capable of extending the absorption to even lower frequencies.The absorption performance of the viscoelastic coating in the high frequency range is independent of the backing material.Its energy attenuation depends mainly on acoustic properties of cavity scattering and mode conversion. | BAI Guofeng LIU Bilong SUI Fusheng LIU Ke YANG Jun | 2013 | Chinese Journal of Acoustics2013，32，4： | 0 |
| 14 | Influence of geometry on the thermal performance of water pit seasonal heat storages for solar district heating显示文摘The aim of the study is to investigate the influence of geometry on the thermal capacity and stratifications of a water pit heat storage for solar district heating.A TRNSYS component model for a truncated cone water pit was developed based on the coordinate transformation method and validated by experimental results from the water pit heat storage in Huangdicheng in 2018.The thermal performance of 26 water pits with different heights and side wall slopes was calculated for 10 consecutive years.It takes four to six years for the water pit to reach steady-state operation.The operation data from the tenth year was selected to evaluate the thermal performance of each configuration.The results show that because of the thermal insulation on top of the water pit,the height to diameter ratio of a water pit with minimum annual heat loss was always smaller than 1.0.The annual storage efficiency of a water pit increases with side wall slope due to the reduced side wall area.There is an almost linear increase in the thermal stratification number of a water pit with height.With an increase in the height,thermal stratification in water pits with a steeper slope increased more gradually than water pits with a lower slope.The findings in this paper are relevant for the design optimization of water pits as seasonal thermal energy storages. | Yakai Bai Ming Yang Jianhua Fan Xiaoxia Li Longfei Chen Guofeng Yuan Zhifeng Wang | 2021 | Building Simulation2021，14，3： | 0 |
| 15 | On the fluid-loaded thin-panel absorbers显示文摘装载液体的薄面板的吸收器的健全吸收被调查。一个一般理论和一个近似理论被给。势能动能的参数,和装载液体的因素被建议。这使吸收机制更清楚,并且比以前简单的计算。薄面板的吸收器的吸收系数和阻抗与一个水疗院听觉的试管被测试。试验性的结果与理论结果同意了很好。 | TONG Xiaopeng BAI Guofeng LIU Ke TIAN Jing | 2009 | Chinese Journal of Acoustics2009，28，1： | 0 |
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