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6篇 您的检索式:作者名="Yuqiang DENG"
    题名 作者 年代 出处 被引量
1Long-term inorganic plus organic fertilization increases yield and yield stability of winter wheat显示文摘An understanding of wheat yield and yield stability response to fertilization is important for sustainable wheat production. A 36-year long-term fertilization experiment was employed to evaluate the yield and yield stability of winter wheat. Five fertilization regimes were compared,including(1) CK, no fertilizer;(2) NPK, inorganic fertilizer only;(3) O, organic fertilizer only;(4)NPKO, 50% of NPK plus 50% of O, and(5) HNPKO, 80% of NPK plus 80% of O. The greatest yield increase was recorded in HNPKO, followed by NPKO, with O producing the lowest mean yield increase. Over the 36 years, the rate of wheat yield increase in fertilized plots ranged from95.31 kg ha-1 year-1 in the HNPKO to 138.65 kg ha-1 year-1 in the O. Yield stability analysis using the additive main effects and multiplicative interactions(AMMI) method assigned 62.3%, 26.3%,and 11.4% of sums of squares to fertilization effect, environmental effect, and fertilization ×environment interaction effect, respectively. The combination of inorganic and organic fertilization(NPKO and HNPKO) appeared to produce more stable yields than O or NPK, with lower coefficients of variation and AMMI stability value. However, wheat grown with O seemed to be the most susceptible to climate change and the least productive among the fertilized plots.Significant correlations of grain yield with soil properties and with mean air temperature were observed. These findings suggest that inorganic + organic fertilizer can increase wheat yield and its stability by improvement in soil fertility and reduction in variability to climate change.Huan Chen Aixing Deng Weijian Zhang Wei Li Yuqiang Qiao Taiming Yang Chengyan Zheng Chengfu Cao Fu Chen 2018The Crop Journal2018,6,6:5
2On-line calibration for line- ar time-base error correction of terahertz spectrometers with echo pulses显示文摘DENG Yuqiang SUN Qing YU Jing 2014Metrologia2014,51,1:1
3Determination of Gabor wavelet shaping factor for accurate phase retrieval with wavelet-transform显示文摘Deng Yuqiang 2005Applied Physics B2005,81,6:1
4Variation Characteristics of Temperature and Influence in Wengyuan County显示文摘Based on the observation data of temperature in Wengyuan County from 1981 to 2021,the changing trends of annual average temperature,annual average maximum and minimum temperature,annual extreme maximum and minimum temperature,seasonal and monthly average temperature in Wengyuan County in the past 41 years were analyzed.The results show that the annual average temperature,annual average maximum and minimum temperature,and annual extreme maximum and minimum temperature in Wengyuan County in the past 41 years showed a fluctuating upward trend,which is consistent with the changing trend of global climate;the temperature rose obviously in winter and spring and slightly in summer;January was the coldest,while July was the hottest,and the average temperature from April to October was above 20.0℃.In general,the annual average temperature in Wengyuan County changed significantly in 1997.It was relatively cold before 1997 and became relatively warm after 1997.Penghui TANG Longmin HE Weijie ZHANG Yuqiang DENG Shaozhong HUANG 2022Meteorological and Environmental Research2022,13,2:0
5Analysis and Assessment on the Health State of International Travellers——An analysis on results of disease surveillance examination of persons entering or leaving the territory via Guangdong ports from 1987 to 1995显示文摘The results of disease surveillance examination of persons entering or leaving the territory via ports in Guangdong province from 1987 to 1995 were collected and the relatively complete data were chosen for statistical analysis in this paper. 4,110,187 examination items were completed from 647,987 persons entering or leaving the territory, 88,522 persons suffering from diseases or being antigen positive have been found and the total detected rate was 2.15%. The detected rates of sexual transmitted diseases such as AIDS, syphilis, gonorrhea are higher in persons from outside the territory than in persons from the interior, 0.10%, 0.25% and 0.30% respectively for the formers and 0.01%, 0.07% and 0.04% respectively for the latters; nevertheless, the detected rate of pulmonary tuberculosis in persons from the interior was higher than that in persons from outside the territory, 0.08% for the former, 0.03% for the latter. The authors discussed the examination results and pointed out that it was of great importance to strengthen the surveillance of sexual transmitted diseases in presons from outside the territory and the tuberculosis surveillance and control in persons from the interior. Once the pulmonary TB cases were found they should be put under strict chemotherapeutic menagement. Attention should also be paid to the detection of malignant tumors in early stage during physical examination, which may contribute to the easly radical cure of malignant tumor and the improvement of people’s health level.Lu Zhiping Zheng Yuqiang Deng Jing Zhou Jianhua Guangdong Health and Quarantine Bureau, P. R. China 1996旅行医学科学1996,2,4:0
6Spiral fractal patterns via hierarchical assembly显示文摘Chirality is ubiquitous in nature and manifested at various scale from subatom to galaxy.Fractal geometry is also very popular and active in the world.However,there are few reports on the concept of combining fractal patterns and chiral structures in self-assembled systems.It was found that tree-shaped fractal patterns could be self-assembled from the N-[(9H-fluoren-9-ylmethoxy)carbonyl]protected glutamic acid(Fmoc-Glu)and zinc-porphyrin(ZnTPyP).The fractal pattern was composed of nanorod aggregate arranged in a spiral fractal way,in which the nanorods were stacked one-by-one in a single direction.The patterns started with the formation of initial nucleon and growing,during which the diffusion limited aggregation(DLA)mechanism led to the fractal patterns.Interestingly,the spiral packing and their branches were closely related to the absolute configuration of Fmoc-Glu that anticlockwise and clockwise arrangement for L-Fmoc-Glu/ZnTPyP and D-Fmoc-Glu/ZnTPyP,respectively.Our work provides a new finding on the spiral fractal pattern via hierarchical self-assembly.Li Zhang Ming Deng Yu Duan Xin Wen Yuqian Jiang Hejin Jiang Yuqiang Ma Minghua Liu 2022Nano Research2022,15,2:0
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