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81篇 您的检索式:作者名="Yingkun"
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1Clinical observation on effect of scalp electroacupuncture for mild cognitive impairment显示文摘OBJECTIVE: To evaluate the therapeutic effect of scalp electroacupuncture for mild cognitive impairment (MCI) in the early stage. METHODS: Two hundred and thirty three MCI patients were randomly divided into three groups: the drug group, the scalp electroacupuncture group, and the syndrome differentiation group. For the scalp electroacupuncture group, the points of Baihui (DU 20), Sishecong (EX-HN1), Fengchi (GB 20), and Shenting (DU 24) were selected. For the syndrome differentiation group, specific acupoints were added on the basis of syndrome differentiation and according to the scale for the differentiation of syndromes in vascular dementia (SDSVD) beside the acupoints used in the scalp electroacupuncture group. For the drug group, nimodipine was orally administered. Each patient was treated for two courses, eight weeks. The score differences in minimental state examination (MMSE), picture recognition, and clock drawing test were observed before and after the treatment. RESULTS: After treatment, the score differences in MMSE and clock drawing test were of obvious statistical significance among three groups (P<0.01, P<0.05). The score differences in picture recognition were of extremely statistical significance between the scalp electroacupuncture group and the syndrome differentiation group (P<0.01), while the difference was not found in the drug group (P>0.05). There were statistical significant differences in therapeutic effects between the scalp electroacupuncture group and the drug group, and between the syndrome differentiation group and the drug group (P<0.05), while no statistical difference was found between scalp electroacupuncture group and the syndrome differentiation group (P>0.05). CONCLUSION: All the three therapies may improve the cognitive function of MCI patients. The therapeutic effects in the scalp electroacupuncture and syndrome differentiation groups were basically the same, but superior to nimodipine.Hong Zhang Ling Zhao Sha Yang Zhigang Chen Yingkun Li Xiaohong Peng Yulong Yang Manjia Zhu 2013Journal of Traditional Chinese Medicine2013,33,1:23
2A Possible Configuration with Motor-generator Pair for Renewable Energy Integration显示文摘High penetration rates of renewable energy will bring stability problems for the future power grid.One of the critical issues is lack of inertia.In this paper,a synchronous motor-generator pair(MGP)system is proposed as a possible solution for renewable energy integration to enhance inertia and improve grid stability.First,feasibility studies of MGP on inertia,damping,efficiency,and cost are presented.Second,an analytical model is established based on its rotor angle relation.An active power control scheme based on voltage phase difference between renewable energy source and grid is then proposed,and state equations of MGP are derived for small signal stability.Next,two experiments are designed and implemented to verify stable operation and active power regulation of the MGP system.A single-machine infinite bus system is tested to investigate small signal stability and frequency response of MGP.The results show that the MGP system has a solid base in physics and is a feasible solution for providing enough inertia and improving small signal performance in the power grid with high penetration of renewable energy.The paper concludes with a discussion on future research directions to gain a better understanding of MGP.Siming Wei Yingkun Zhou Song Li Yongzhang Huang 2017CSEE Journal of Power and Energy Systems2017,3,1:20
3肠系膜上静脉血管鞘内入路在右半结肠切除术中的临床研究(英文)显示文摘Objective: The aim of the study was to investigate the clinical value of superior mesenteric vascular intrathecal approach in right hemicolectomy. Methods: We retrospectively studied the clinical data of 132 patients who had right hemicolectomy from June 2007 to June 2010, including 68 cases with superior mesenteric vascular intrathecal approach to resect specimen, and compared the operation time, blood loss, hospital stay and the number of dissected lymph nodes with patients treated with conventional surgery. Results: Compared the vascular intrathecal approach with conventional approach, the operation time and blood loss were decreased significantly, the number of Dukes C No. 3 lymph node dissection was increased, while the incidence of postoperative complications and hospital stay were equivalent to traditional surgery group. Conclusion: The use of vascular intrathecal approach in right hemicolectomy can significantly shorten the operation time and reduce bleeding and improve surgical radical outcomes.Yuzhou Zhao, Guangsen Han, Yingkun Ren, Yanhui Gu, Chaomin Lu Department of General Surgery, Henan Tumor Hospital Affiliated Tumor Hospital, Zhengzhou University, Zhengzhou 450003, China 2010The Chinese-German Journal of Clinical Oncology2010,9,11:6
4Pore structure and heterogeneity of shale gas reservoirs and its effect on gas storage capacity in the Qiongzhusi Formation显示文摘Fine characterization of pore systems and heterogeneity of shale reservoirs are significant contents of shale gas reservoir physical property research. The research on micro-control factors of low productivity in the Qiongzhusi Formation(Fm.) is still controversial. The lower Cambrian Qiongzhusi Fm. in the Qujing, Yunnan was taken as the object to investigate the influence of mineral compositions on the physical properties of the reservoir and the heterogeneity of shale, using the algorithm to improve the characterization ability of Atomic Force Microscopy(AFM). The results showed that:(1) The pores are mainly wedge-shaped pores and V-shaped pores. The pore diameter of the main pore segment ranges from 5 to 10 nm. Mesopores are mainly developed in the Qiongzhusi Fm. shale in Well QD1, with the average pore diameter of 6.08 nm.(2) Microscopic pore structure and shale surface properties show strong heterogeneity, which complicates the micro-migration of shale gas and increases the difficulty of identifying high-quality reservoirs.(3) The increase of clay mineral content intensifies the compaction and then destroys the pores. Conversely, brittle minerals can protect pores. The support and protection of brittle minerals to pores space depend on their content, mechanical properties and diagenesis.(4)Compression damage to pores, large microscopic roughness and surface fluctuations and strong pore structure heterogeneity are the reasons for the poor gas storage capacity of the Qiongzhusi Fm., which will lead to poor productivity in the Qiongzhusi Fm.Shangbin Chen Zhuo Gong Xueyuan Li Huijun Wang Yang Wang Yingkun Zhang 2021Geoscience Frontiers2021,12,6:5
5Rapid growth of a large-scale(600 mm aperture) KDP crystal and its optical quality显示文摘Potassium dihydrogen phosphate(KDP) single crystals are the only nonlinear crystals currently used for electro-optic switches and frequency converters in inertial confinement fusion research, due to their large dimension and exclusive physical properties. Based on the traditional solution-growth process, large bulk KDP crystals, usually with sizes up to600 × 600 mm2 so as to make a frequency doubler for the facility requirement loading highly flux of power laser, can be grown in standard Holden-type crystallizers, without spontaneous nucleation and visible defects, one to two orders of magnitude faster than by conventional methods. Pure water and KDP raw material with a few ion impurities such as Fe,Cr, and Al(less than 0.1 ppm) were used. The rapid-growth method includes extreme conditions such as temperature range from 60 to 35℃ , overcooling up to 5℃ , growth rates exceeding 10 mm/day, and crystal size up to 600 mm. The optical parameters of KDP crystals were determined. The optical properties of crystals determined indicate that they are of favorable quality for application in the facility.Guohui Li Guozong Zheng Yingkun Qi Peixiu Yin En Tang Fei Li Jing Xu Taiming Lei Xiuqin Lin Min Zhang Junye Lu Jinbo Ma Youping He Yuangen Yao 2014High Power Laser Science and Engineering2014,2,1:3
6Hybrid calibration method for six-component force/torque transducers of wind tunnel balance based on support vector machines显示文摘A hybrid calibration approach based on support vector machines (SVM) is proposed to characterize nonlinear cross coupling of multi-dimensional transducer. It is difficult to identify these unknown nonlinearities and crosstalk just with a single conventional calibration approach. In this paper, a hybrid model comprising calibration matrix and SVM model for calibrating linearity and nonlinearity respectively is built up. The calibration matrix is determined by linear artificial neural network (ANN), and the SVM is used to compensate for the nonlinear cross coupling among each dimension. A simulation of the calibration of a multi-dimensional sensor is conducted by the SVM hybrid calibration method, which is then utilized to calibrate a six-component force/torque transducer of wind tunnel balance. From the calibrating results, it can be indicated that the SVM hybrid calibration method has improved the calibration accuracy significantly without increasing data samples, compared with calibration matrix. Moreover, with the calibration matrix, the hybrid model can provide a basis for the design of transducers.Ma Yingkun Xie Shilin Zhang Xinong Luo Yajun 2013Chinese Journal of Aeronautics2013,26,3:3
7High-voltage 4H-SiC PiN diodes with the etched implant junction termination extension显示文摘This paper presents the design and fabrication of an etched implant junction termination extension(JTE)for high-voltage 4H-SiC PiN diodes. Unlike the conventional JTE structure, the proposed structure utilizes multiple etching steps to achieve the optimum JTE concentration range. The simulation results show that the etched implant JTE method can improve the blocking voltage of SiC PiN diodes and also provides broad process latitude for parameter variations, such as implantation dose and activation annealing condition. The fabricated SiC PiN diodes with the etched implant JTE exhibit a highest blocking voltage of 4.5 kV and the forward on-state voltage of 4.6 V at room temperature. These results are of interest for understanding the etched implant method in the fabrication of high-voltage power devices.Juntao Li Chengquan Xiao Xingliang Xu Gang Dai Lin Zhang Yang Zhou An Xiang Yingkun Yang Jian Zhang 2017Journal of Semiconductors2017,38,2:2
8Geostatistical Analysis of Spatial Distribution and Dynamics of Dead Heart of Sugarcane Seedlings Caused by Borer显示文摘Dead heart of sugarcane is an important symptom caused by borer attack. In the present study, the spatial distribution and dynamics of dead heart of sugarcane in the field were investigated based on geostatistical analysis, and semivariograms were computed in four separate directions(0°, 45°, 90° and 135°) and fitted with various theoretical models to determine the best fitted one. The Ordinary Kriging was used to interpolate spatial data. The results revealed that the density of dead hearts of sugarcane increased in a single-peak pattern, and the degree of spatial aggregation and random variation both decreased with the increase in the density of dead heart. In addition, dead heart of sugarcane caused by borer exhibited spatial aggregation.With the increase in the density of dead heart, the degree of spatial aggregation decreased, while the correlation increased. Kriging interpolation indicated that the correlation between the spatial patches was weak in early seedling stage, and became strong in middle and late seedling stage.Zhiming LUO Jiong YIN Wenfeng LI Rongyue ZHANG Hongli SHAN Xiaoyan WANG Yingkun HUANG 2017Agricultural Science & Technology2017,18,4:2
9MEB-YOLO: An Efficient Vehicle Detection Method in Complex Traffic Road Scenes显示文摘Rapid and precise vehicle recognition and classification are essential for intelligent transportation systems,and road target detection is one of the most difficult tasks in the field of computer vision.The challenge in real-time road target detection is the ability to properly pinpoint relatively small vehicles in complicated environments.However,because road targets are prone to complicated backgrounds and sparse features,it is challenging to detect and identify vehicle kinds fast and reliably.We suggest a new vehicle detection model called MEB-YOLO,which combines Mosaic and MixUp data augmentation,Efficient Channel Attention(ECA)attention mechanism,Bidirectional Feature Pyramid Network(BiFPN)with You Only Look Once(YOLO)model,to overcome this problem.Four sections make up this model:Input,Backbone,Neck,and Prediction.First,to improve the detection dataset and strengthen the network,MixUp and Mosaic data improvement are used during the picture processing step.Second,an attention mechanism is introduced to the backbone network,which is Cross Stage Par-tial Darknet(CSPDarknet),to reduce the influence of irrelevant features in images.Third,to achieve more sophisticated feature fusion without increasing computing cost,the BiFPN structure is utilized to build the Neck network of the model.The final prediction results are then obtained using Decoupled Head.Experiments demonstrate that the proposed model outperforms several already available detection methods and delivers good detection results on the University at Albany DEtection and TRACking(UA-DETRAC)public dataset.It also enables effective vehicle detection on real traffic monitoring data.As a result,this technique is efficient for detecting road targets.Yingkun Song Shunhe Hong Chentao Hu Pingan He Lingbing Tao Zhixin Tie Chengfu Ding 2023Computers, Materials & Continua2023,,6:2
10Three Gorges Dam Controls Sediment Coarsening of the Mud Patch on the Inner East China Sea Shelf显示文摘The well-known Three Gorges Dam(TGD) within the Yangtze catchment launched its operation in 2003. The effect of the TGD operation on the sediment size on the East China Sea shelf is rarely known. High resolution(0.5 cm sampling) grain size analysis and 137 Cs and 210 Pb dating of the DH8-1 core were conducted with core collected from the distal part of a main sink for the modern Yangtze sediment entering the sea, the Min-Zhe Coastal Mud Deposits(MZCMD) on the inner East China Sea shelf. The 137 Cs dating results show that the core DH8-1 formed during 1946–2012 with a mean deposition rate of 0.65 cm yr^(-1), indicating that the 0.5 cm sampling for grain size analysis in this local area could reflect environmental changes generally on a one-year time scale. The mean grain size of DH8-1 core sediment that deposited after 2003 is significantly larger than that deposited during 1988–2002. After ruling out other possible factors, we infer that the sediment coarsening of DH8-1 core after 2003 is attributed to the TGD operation which causes the erosion of the Yangtze subaqueous delta. Specifically, the TGD operation significantly intensifies the declining trend of the Yangtze sediment loads to the sea despite no decreased water discharge, which results in extensive erosion of the Yangtze subaqueous delta. The relatively coarse sediment of the subaqueous delta is eroded and resuspended by ocean dynamics and then transported by coastal current, finally depositing on the MZCMD area. In addition, the general sediment fining of core DH8-1 that deposited during 1988–2002, comparing with 1946–1987, is mainly caused by dam construction and soil and water conservation within the Yangtze catchment. Our findings are helpful for better understanding the effects of such a huge dam as the TGD on a sediment sink like the MZCMD of such a large river as the Yangtze River.MIAO Anyang CHU Zhongxin LI Yingkun 2016Journal of Ocean University of China2016,15,3:2
11Occurrence and Epidemic Dynamics and Accurate Prevention and Control of Important Sugarcane Pests and Diseases in the Sugarcane Areas of Yunnan显示文摘Based on investigation and research,according to the current actual production of sugarcane,the occurrence dynamics and outbreak causes of important pests and diseases that seriously affect sugarcane production were summarized,and accurate and efficient green prevention and control technology was put forward according to the occurrence and damage characteristics of important pests and diseases,such as strengthening sugarcane introduction and quarantine,breeding and selecting varieties resistant to diseases and pests,promoting the use of detoxified healthy seedlings vigorously,applying lamp trapping technology on a large scale,scientifically guiding and promoting biological prevention and control technology,practically promoting the precise and efficient application of slow-release longacting and low toxic pesticides,strengthening field management,spraying pesticides in time at the early stage of a disease,and doing a good job of monitoring and emergency prevention and control of sudden pests.Wenfeng LI Rongyue ZHANG Hongli SHAN Xiaoyan WANG Jiong YIN Zhiming LUO Jie LI Xiaoyan CANG Yingkun HUANG 2018Agricultural Biotechnology2018,7,5:2
12Biodiversity ofyeasts, lactic acid bacteria and acetic acid bacteria in the fermentationof “Shanxi aged vinegar”,a traditional Chinese vinegar显示文摘WU Jiajia MA Yingkun ZHANG Fenfen 2012FoodMicrobiology2012,30,1:1
13Early detection method of all-zero integer transform coefficients 显示文摘WANG YINGKUN ZHOU YUANHUA YANG HUA 2004IEEE Transactions on Consumer Electronics2004,50,3:1
14Two-dimensional counte~current chromatography )< high performance liquid chromatography for preparative isolation of toad venom显示文摘Qiu YingKun Yan Xia Fang MeiJuan 2014J Chromatogr A2014,1331,:1
15Robust face recognition based on illumination invariant in nonsubsam- pled Contourlet transform domain显示文摘Cheng Yong Hou Yingkun Zhao Chunxia 2010Neurocomputing2010,73,10:1
16Early detection method of all-zero integer transform coefficients显示文摘Wang Yingkun Zhou yuanhua Yang Hua 2004IEEETransactions on Consumer Electronics2004,50,3:1
17Control Effect of Slow-release, Long-acting and Multi-functional New Pesticides on Sugarcane Borders and Woolly Aphids显示文摘In order to select the long-acting,low toxic,low-risk and multi-functional new pesticides for the control of sugarcane borders and woolly aphids and precise and efficient application technology,the control effect of 10% monosultap · thiamethoxam granular formulation and 1% Bt · clothianidin granular formulation on sugarcane borders and woolly aphids were studied.The results showed that 10% monosultap·thiamethoxam GR and 1% Bt·clothianidin GR had good control effects on sugarcane borders and woolly aphids.They were ideal slow-release,long-acting,low toxic and multi-functional new pesticides used to control sugarcane borders and woolly aphids.They could be used alternately with other pesticides to delay the emergence and development of pest resistance to pesticides.The best dosage of the two pesticides in the field was 45 kg/hm^2.They could be mixed with fertilizer( 1200-1800 kg/hm^2),scattered in sugarcane ditches or at the base of sugarcane plants,and covered with soil or film from January to July.The control effect on dead heart seedlings damaged by borers could be up to above 79.2%,and the control effect on sugarcane woolly aphids could reach more than 98.8%.In comparison with the control group,the actual yield and sugar content of sugarcane increased by above 41 555 kg/hm^2 and 6.5% respectively.The application of slow-release,long-acting,strong systemic and multi-functional new agents with fertilizer around roots is convenient,precise and efficient,labor-saving,time-saving and environmentally friendly,and is worthy of being widely applied in sugarcane areas.Wenfeng LI Rongyue ZHANG Xiaoyan WANG Hongli SHAN Jiong YIN Yonglei MAO Chao FANG Zhiming LUO Yingkun HUANG 2018Agricultural Biotechnology2018,7,6:1
18A Cross-Layer Cooperative Jamming Scheme for Social Internet of Things显示文摘In this paper,we design a friendly jammer selection scheme for the social Internet of Things(IoT).A typical social IoT is composed of a cellular network with underlaying Device-to-Device(D2D)communications.In our scheme,we consider signal characteristics over a physical layer and social attribute information of an application layer simultaneously.Using signal characteristics,one of the D2D gadgets is selected as a friendly jammer to improve the secrecy performance of a cellular device.In return,the selected D2D gadget is allowed to reuse spectrum resources of the cellular device.Using social relationship,we analyze and quantify the social intimacy degree among the nodes in IoT to design an adaptive communication time threshold.Applying an artificial intelligence forecasting model,we further forecast and update the intimacy degree,and then screen and filter potential devices to effectively reduce the detection and calculation costs.Finally,we propose an optimal scheme to integrate the virtual social relationship with actual communication systems.To select the optimal D2D gadget as a friendly jammer,we apply Kuhn-Munkres(KM)algorithm to solve the maximization problem of social intimacy and cooperative jamming.Comprehensive numerical results are presented to validate the performance of our scheme.Yan Huo Jingjing Fan Yingkun Wen Ruinian Li 2021Tsinghua Science and Technology2021,26,4:1
19Research Progress and Prospect of Sugarcane Smut显示文摘Sugarcane smut disease( Ustilago scitaminea Sydow) is an important fungal disease worldwide,which seriously affects yield and quality of sugarcane and threatens the stability and development of sugarcane industry. This paper reviewed disease occurrence,damage,pathogen,symptoms,genetic diversity and detection methods of sugarcane smut,response of sugarcane to sugarcane smut stress and control measures of sugarcane smut. The in-depth research of sugarcane smut was also prospected,aiming to provide theoretical reference and scientific basis for the effective control of sugarcane smut.Changmi WANG Jie LI Rongyue ZHANG Xiaoyan WANG Hongli SHAN Xiaoyan CANG Jiong YIN Zhiming LUO Yingkun HUANG 2020Agricultural Biotechnology2020,9,3:1
20Magnetic reso- nance image reconstruction from undersampled measure- ments using a patch-based nonlocal operator 显示文摘Qu Xiaobo Hou Yingkun Lain Fan 2014Medical Image Analysis2014,18,6:1
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