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11篇 您的检索式:作者名="Bingfang Zhao"
    题名 作者 年代 出处 被引量
1Remote sensing based monitoring of interannual variations in vegetation activity in China from 1982 to 2009显示文摘Terrestrial vegetation is one of the most important components of the Earth's land surface. Variations in terrestrial vegetation directly impact the Earth system's balance of material and energy. This paper describes detected variations in vegetation activity at a national scale for China based on nearly 30 years of remote sensing data derived from NOAA/AVHRR(1982–2006) and MODIS(2001–2009). Vegetation activity is analyzed for four regions covering agriculture, forests, grasslands, and China's Northwest region with sparse vegetation cover(including regions without vegetation). Relationships between variations in vegetation activity and climate change as well as agricultural production are also explored. The results show that vegetation activity has generally increased across large areas, especially during the most recent decade. The variations in vegetation activity have been driven primarily by human factors, especially in the southern forest region and the Northwest region with sparse vegetation cover. The results further show that the variations in vegetation activity have influenced agricultural production, but with a certain time lag.LI Fei ZENG Yuan LI XiaoSong ZHAO QianJun WU BingFang 2014Science China Earth Sciences2014,57,8:8
2Land Cover Changes and Drivers in the Water Source Area of the Middle Route of the South-to-North Water Diversion Project in China from 2000 to 2015显示文摘The Middle Route of the South-to-North Water Diversion Project(MR-SNWDP)in China,with construction beginning in 2003,diverts water from Danjiangkou Reservoir to North China for residential,agriculture and industrial use.The water source area of the MR-SNWDP is the region that is most sensitive to and most affected by the construction of this water diversion project.In this study,we used Landsat Thematic Mapper(TM)and HJ-1 A/B images from 2000 to 2015 by an object-based approach with a hierarchical classification method for mapping land cover in the water source area.The changes in land cover were illuminated by transfer matrixes,single dynamic degree,slope zones and fractional vegetation cover(FVC).The results indicated that the area of cropland decreased by 31%and was replaced mainly by shrub over the past 15 years,whereas forest and settlements showed continuous increases of 29.2% and 77.7%,respectively.The changes in cropland were obvious in all slope zones and decreased most remarkably(–43.8%)in the slope zone above 25°.Compared to the FVC of forest and shrub,significant improvement was exhibited in the FVC of grassland,with a growth rate of 16.6%.We concluded that local policies,including economic development,water conservation and immigration resulting from the construction of the MR-SNWDP,were the main drivers of land cover changes;notably,they stimulated the substantial and rapid expansion of settlements,doubled the wetlands and drove the transformation from cropland to settlements in immigration areas.GAO Wenwen ZENG Yuan ZHAO Dan WU Bingfang REN Zhiyuan 2020Chinese Geographical Science2020,30,1:2
3Evenness is important in assessing progress towards sustainable development goals显示文摘Sustainable development goals(SDGs)emphasize a holistic achievement instead of cherry-picking a few.However,no assessment has quantitatively considered the evenness among all 17 goals.Here,we propose a systematic method,which first integrates both the evenness and the overall status of all goals,to distinguish the ideal development pathways from the uneven ones and then revisit the development trajectory in China from 2000 to 2015.Our results suggest that,despite the remarkable progress,a bottleneck has occurred in China since 2013 due to the stagnant developments in some SDGs.However,many far-reaching policies in China have been targeting these deficiencies since then,providing a perspective on how a country approaches sustainable development by promoting evenness among all SDGs.Our results also indicate that regions with the slowest progress are the developed provinces,owing to the persistent uneven status of all goals.Our study demonstrates the importance of adopting evenness in assessing and guiding sustainable development.Yali Liu Jianqing Du Yanfen Wang Xiaoyong Cui Jichang Dong Yanbin Hao Kai Xue Hongbo Duan Anquan Xia Yi Hu Zhi Dong Bingfang Wu Xinquan Zhao Bojie Fu 2021National Science Review2021,8,8:1
4Differential diagnosis of cervical nerve compression syndrome of the external intervertebral foramen显示文摘The aim of the present research is to study the mechanism of cervical nerve compression syndrome of the external intervertebral foramen and its differential diagnosis with cervical spondylosis.Diagnostic treatment with muscle relaxant,vasodilator,neurotrophic medicine and celecoxib(COX)-2 inhibitor were performed in 20 patients with cervical nerve compression syndrome of the external intervertebral foramen and 20 patients with cervical spondylosis confirmed by operation.Diagnostic local block therapy was performed additionally in cases showing little effect after diagnostic treatment.All the patients were followed up postoperatively for more than one year.Fifteen cases with cervical nerve compression syndrome of the external intervertebral foramen were healed by the diagnostic treatment.The other five cases had a short-term remission and there was no recurrence after diagnostic local block therapy.Diagnostic treatment led to short-term alleviation of the symptom in 20 cases with cervical spondylosis confirmed by operation,the results of which was far from satisfactory and operation was undertaken finally in all the 20 cases.The etiology of cervical nerve compression syndrome of the external intervertebral foramen lies in the compression of the cervical plexus,brachial plexus and cervical dorsal rami by the tendinous decussating fibers of the scalenus anticus,medius,minimus and the posterior muscles of the neck.Diagnostic treatment was propitious to differentiate cervical nerve compression syndrome of the external intervertebral foramen from cervical spondylosis.WANG Jinwu NI Weifeng LI Qi XU Jianguang ZHU Haibo ZHAO Binghui GUO Shangchun ZENG Bingfang 2007Frontiers of Medicine2007,1,2:1
5Direct stamping multifunctional tactile sensor for pressure and temperature sensing显示文摘Flexible and wearable sensors have broad application prospects in health monitoring and artificial intelligence.Many different single-functional sensing devices have been developed in recent years,such as pressure sensors and temperature sensors.However,it is still a great challenge to design and fabricate tactile sensors with multiple sensing functions.Herein,we propose a simple direct stamping method for the fabrication of multifunctional tactile sensors.It can detect pressure and temperature stimuli signals simultaneously.This pressure/temperature sensor possesses high sensitivity(0.67 kPa^(-1)),large linear range(0.75-5 kPa),and fast response speed(15.6 ms)in pressure sensing.It also has a high temperature sensitivity(1.41%/℃)and great linearity(0.99)for temperature sensing in the range of-30 to 30℃.All these excellent performances indicate that this pressure/temperature sensor has great potential in applications for artificial intelligence and health monitoring.Binghao Liang Bingfang Huang Junkai He Rongliang Yang Chengchun Zhao Bo-Ru Yang Anyuan Cao Zikang Tang Xuchun Gui 2022Nano Research2022,15,4:1
6Challenges and opportunities in remote sensing-based crop monitoring:a review显示文摘Building a more resilient food system for sustainable development and reducing uncertainty in global food markets both require concurrent and near-real-time and reliable crop information for decision making.Satellite-driven crop monitoring has become a main method to derive crop information at local,regional,and global scales by revealing the spatial and temporal dimensions of crop growth status and production.However,there is a lack of quantitative,objective,and robust methods to ensure the reliability of crop information,which reduces the applicability of crop monitoring and leads to uncertain and undesirable consequences.In this paper,we review recent progress in crop monitoring and identify the challenges and opportunities in future efforts.We find that satellite-derived metrics do not fully capture determinants of crop production and do not quantitatively interpret crop growth status;the later can be advanced by integrating effective satellite-derived metrics and new onboard sensors.We have identified that ground data accessibility and the negative effects of knowledge-based analyses are two essential issues in crop monitoring that reduce the applicability of crop monitoring for decisions on food security.Crowdsourcing is one solution to overcome the restrictions of ground-truth data accessibility.We argue that user participation in the complete process of crop monitoring could improve the reliability of crop information.Encouraging users to obtain crop information from multiple sources could prevent unconscious biases.Finally,there is a need to avoid conflicts of interest in publishing publicly available crop information.Bingfang Wu Miao Zhang Hongwei Zeng Fuyou Tian Andries B Potgieter Xingli Qin Nana Yan Sheng Chang Yan Zhao Qinghan Dong Vijendra Boken Dmitry Plotnikov Huadong Guo Fangming Wu Hang Zhao Bart Deronde Laurent Tits Evgeny Loupian 2023National Science Review2023,10,4:1
7Evaluation of the antioxidant activity of blueberry ethanol extracts under microwave extraction显示文摘Blueberry extract contains diversiform monomers of anthocyanins, whose antioxidant activity determines the functionality of anthocyanidins and the efficacy of extraction technology. The evaluation of the antioxidant activity of anthocyanidins of blueberry ethanol extracts (BEE) was investigated by considering the monomers' identification and thermal degradation in microwave-assisted extraction (MAE). Thirteen monomers of anthocyanins were identified from the extracts of blueberry under MAE, where the highest content was for cyanidin glycosides, and the lowest content was for the malvidin glycosides. The onset temperatures of degradation for anthocyanidins monomers in BEE were 41.07°C-48.50°C, and the glycoside contents of delphinidin, cyanidin, petunidin, peonidin, peonidin, and malvidin, in turn, decreased obviously. The degradation of anthocyanidins with extraction temperature improved, other than weakened, its antioxidant activities in BEE under MAE. The research results may provide valuable guidance for the antioxidant application of extracts from blueberries.Chenghai Liu Xinglong Zhao Zhen Wang Xianzhe Zheng Liangliang Xue Chai Liu Zhiying Chen Bingfang Zhang 2022International Journal of Agricultural and Biological Engineering2022,15,4:1
8Enhanced chemosensi tivity of drug-resistant osteosarcoma cells by lentivirus-mediated Bcl 2 silencing 显示文摘Zhao Yao Zhang Chunlin Zeng Bingfang 2009Biochemical and Biophysical Research Communica tions2009,390,3:1
9A Study on the Ultrasonic Extraction and Antioxidant Activity of Lychee Pericarp Polysaccharides显示文摘The aim was to optimize ultrasonic extraction conditions and study antioxidant activities of lychee pericarp polysaccharides. The effects of extraction temperature,time,ultrasonic power,solid-liquid ratio on polysaccharides yield were investigated by single-factor experiment and orthogonal experiment to obtain optimum extraction conditions; the antioxidant activities of lychee pericarp polysaccharides were evaluated by the total antioxidant activity. Optimum extraction process was under extraction temperature of 80 ℃,extraction time of 2. 5 h,ultrasonic power of 180 W,solid-liquid ratio of 1∶ 25 g / m L; the total antioxidant activity was increased with the increasing concentration of polysaccharides. The extraction process is simple and efficient. The extraction rate of lychee pericarp polysaccharides with antioxidant activities is high.Dandan ZHAO Shengyu CHEN Shaoming LING Bingfang SHI Jinlei ZHANG Li LI 2016Asian Agricultural Research2016,8,7:1
10Design Method for Mix Proportion of Hydraulic High Performance Concrete Based on Overall Calculation显示文摘Jun Feng Shuyou Huang Bingfang Zhao Liyu Sun 2014土木工程与技术(中英文版)2014,3,2:0
11Electrochemical Reaction Mechanism of Phenacetin at a Carboxylated Multiwall Carbon Nanotube Modified Electrode and Its Analytical Applications显示文摘ZHANG Jinlei LAN Cuiling SHI Bingfang LIU Fang ZHAO Dandan TAN Xuecai 2014Chemical Research in Chinese Universities2014,30,6:0
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