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| 1 | Breast milk macronutrient composition and the associated factors in urban Chinese mothers显示文摘 | Yang Titi Zhang Yumei Ning Yibing You Lili Ma Defu Zheng Yingdong Yang Xiaoguang Li Wenjun Wang Junkuan Wang Peiyu | 2014 | Chinese Medical Journal2014，，9： | 17 |
| 2 | Nucleation mechanisms of dynamic recrystallization in Inconel 625 superalloy deformed with different strain rates显示文摘The effects of strain rates on the hot working characteristics and nucleation mechanisms of dynamic recrystallization (DRX) were studied by optical microscopy and electron backscatter diffraction (EBSD) technique. Hot compression tests were conducted using a Gleeble-1500 simulator at a true strain of 0.7 in the temperature range of 1000 to 1150 °C and strain rate range of 0.01 to 10.00 s-1. It is found that the size and volume fraction of the DRX grains in hot-deformed Inconel 625 superalloy firstly decrease and then increase with increasing strain rate. Meanwhile, the nucleation mechanism of DRX is closely related to the deformation strain rate due to the deformation thermal effect. The discontinuous DRX (DDRX) with bulging of original grain boundaries is the primary nucleation mechanism of DRX, while the continuous DRX (CDRX) with progressive subgrain rotation acts as a secondary nucleation mechanism. The twinning formation can activate the nucleation of DRX. The effects of bulging of original grain boundaries and twinning formation are firstly gradually weakened and then strengthened with the increasing strain rate due to the deformation thermal effect. On the contrary, the effect of subgrain rotation is firstly gradually strengthened and then weakened with the increasing strain rate. | Guo, Qingmiao Li, Defu Peng, Haijian Guo, Shengli Hu, Jie Du, Peng | 2012 | Rare Metals2012，31，3： | 8 |
| 3 | Study on round rice straw bale wrapping silage technology and facilities显示文摘Specific to problems of the existing round bale wrapping machine in China,such as small application scope and failing to satisfy the wrapping demands of round bales of different specifications,a tumbler-type round bale wrapping machine based on wrapping silage with stretch film was designed.By theoretical analysis and preliminary experiments of the corresponding wrapping process,revolving speed of tumbler,speed ratio between tumbler and carrier rollers,and pre-load force of stretch film were determined as experimental factors,while wrapping time and consumption of stretch film per unit mass of round bale were determined as evaluation indexes.Furthermore,quadratic regression orthogonal rotational combination experimental design was adopted to carry out the wrapping experiment.The regression models were set up,and influencing rules of experimental factors on evaluation indexes were also analyzed.The optimal parameter combination scheme was revolving speed of tumbler of 31-32 r/min,speed ratio between tumbler and carrier rollers of 2.6,and pre-load force of stretch film of 20-22 N.Under such a circumstance,the corresponding wrapping time required was 37.7-38.9 s and consumption of stretch film per unit mass of round bale was 3.21-3.46 kg/t.The predicted values and the measured values of evaluation indexes basically coincided with each other and the relative error fell below 5%,which indicated that both the optimized regression models acquired through the wrapping experiment and the relevant parameter optimization results were reliable.To guarantee the quality of rice straw silage,the round bale should be wrapped by no less than five layers of stretch films through the utilization of the tumbler-type round bale wrapping machine.The study results could be used as references for research and development of the round bale wrapping machine. | Liqiao Li Defu Wang Xing Yang | 2018 | International Journal of Agricultural and Biological Engineering2018，11，4： | 5 |
| 4 | Engineering practice and economic analysis of ozone oxidation wet denitrification technology显示文摘SO_(2)and NO emitted from coal-fired power plants have caused serious air pollution in China.In this study,a test system for NO oxidation using O_(3)is established.The basic characteristics of NO oxidation and products forms are studied.A separate test system for the combined removal of SO_(2)and NO_(x)is also established,and the absorption characteristics of NO_(x)are studied.The characteristics of NO oxidation and NO_(x)absorption were verified in a 35 t·h^(-1)industrial boiler wet combined desulfurization and denitrification project.The operating economy of ozone oxidation wet denitrification technology is analyzed.The results show that O_(3)has a high rate and strong selectivity for NO oxidation.When O_(3)is insufficient,the primary oxidation product is NO_(2).When O_(3)is present in excess,NO_(2)continues to get oxidized to N_(2)O_(5)or NO_(3).The removal efficiency of NO_(2)in alkaline absorption system is low(only about 15%).NOx removal efficiency can be improved by oxidizing NO_(x)to N_(2)O_(5)or NO_(3)by increasing ozone ratio.When the molar ratio of O_(3)/NO is 1.77,the NOx removal efficiency reaches 90.3%,while the operating cost of removing NO_(x)per kilogram is 6.06 USD(NO_(2)). | Yang Li Defu Che Chenglong Yang Mingyu Yao Tingwen Zhao Kangli Fu Hanchen Zhao | 2021 | Chinese Journal of Chemical Engineering2021，34，1： | 3 |
| 5 | Fuel Spray Dynamic Characteristics of GDI High Pressure Injection System显示文摘In order to improve the fuel consumption and exhaust emission for gasoline engines,gasoline direct injection(GDI) system is spotlighted to solve these requirements.Thus,many researchers focus on the investigation of spray characteristics and the fuel formation of GDI injector.This paper presents a complete numerical and experimental characterization of transient gasoline spray from a high pressure injection system equipped with a modern single-hole electric controlled injector in a pressurized constant volume vessel.The numerical analysis is carried out in a one-dimensional model of fuel injection system which is developed in the AVL HYDSIM environment.The experimental analyses are implemented through a self-developed injection rate measurement device and spray evolution visualization system.The experimental results of injection rate and spray dynamics are taken to tune and validate the built model.The visualization system synchronize a high speed CMOS camera to obtain the spray structure,moreover,the captured images are taken to validate the injector needle lift process which is simulated in the model.The reliability of the built model is demonstrated by comparing the numerical results with the experimental data.The formed vortex structure at 0.8 ms is effectively disintegrated at 6.2 ms and the spray dynamics become rather chaotic.The fuel flow characteristics within injector nozzle extremely influence the subsequent spray evolution,and therefore this point should be reconsidered when building hybrid breakup GDI spray model.The spray tip speed reach the maximum at 1.18 ms regardless of the operation conditions and this is only determined by the injector itself.Furthermore,an empirical equation for the spray tip penetration is obtained and good agreement with the measured results is reached at a certain extent.This paper provides a methodology for the investigation of spray behavior and fuel distribution of GDI engine design. | LI Bo LI Yunqing WANG Defu | 2012 | Chinese Journal of Mechanical Engineering2012，25，2： | 3 |
| 6 | cDNA cloning and expression pattern of two enolase genes from the Chinese oak silkworm, Antheraea pernyi显示文摘在这研究,二 enolase 基因从中国橡树蚕被孤立并且描绘, Antheraea perny,它被指定为 enolase 我和 II 分别地。enolase 我 cDNA 顺序是有编码 433 氨基酸的 1302 bp 的一个开的读物框架(ORF ) 的 1712 bp。enolase II cDNA 顺序是有编码 431 氨基酸的 1296 bp 的 ORF 的 1549 bp。二基因的氨基酸序列分享 enolase 的几个保存特征 / 地点。我显示出的 Antheraea pernyi enolase 93%97% 顺序身份到迄今为止可得到的 lepidopterans 的 enolases,到另外的无脊椎动物的 enolases 的 75%82% 身份,到包括脊椎动物的另外的有机体的 enolases 的 60%72% 身份,植物,和真菌。Antheraea pernyi enolase II 显示出 84% 身份到 Bombyx mori enolase II,而是 60% 身份到 A。pernyi enolase 我。在种系发生的树上, enolase II 从 A 定序。pernyi 和 B。mori 清楚地包括 A 与更高的有机体的 enolase 序列的多数被分开。pernyi 和 B。我定序的 mori enolase。由顺序比较和种系发生的分析,我们从 A 建议那 enolase II。pernyi 和 B。mori 可以是 enolase 总科的一个新成员。Antheraea pernyi enolase 我而 enolase II mRNA 在睾丸和卵巢明确地被表示, mRNA 在所有测试纸巾被发现,建议 enolase II 基因的产品可能与复制有关。抄本许多 A。pernyi enolase 我基因在冷吃惊以后并且显著地是显著地下面调整的在热吃惊以后起来调整,建议那 A。pernyi enolase 我基因可能由温度应力是可诱导的。 | Yanqun Liu Yuping Li Huan Wang Runxi Xia Xisheng Li Haolei Wan Li Qin Defu Jiang Cheng Lu Zhonghuai Xiang | 2010 | Acta Biochimica et Biophysica Sinica2010，42，11： | 2 |
| 7 | Musk secretion in muskrats(Ondatra zibethicus L.):association with lipid and cholesterol metabolism-related pathways显示文摘Male muskrats(Ondatra zibethicus L.)secrete musk from their scent glands during musk secretion season.Musk plays an important role as a communication pheromone during the breeding season.In this study,gas chromatography–mass spectrometry(GC–MS)was used to analyze the main components of musk.The GC–MS results after methyl esterification showed that 71.55%of the musk is composed of fatty acids.The other components of muskrat musk include cholesterol(9.31%)and other organics.Transcriptome comparison between musk secretion and non-secretion seasons showed significant changes in the scent glands for 53 genes involved in fatty acid and cholesterol synthesis and metabolism regulatory pathways,which include fatty acid biosynthesis,elongation,and metabolism;steroid biosynthesis;steroid hormone biosynthesis pathways.A reverse transcription–polymerase chain reaction analysis confirmed these detected changes.Overall,our results indicated that lipid synthesis and metabolism play important roles in musk compound synthesis by providing energy for musk production,and the produced musk provides a mechanism for male muskrats to communicate with females during the breeding season. | TIANXIANG ZHANG MEISHAN ZHANG MINGHUI SHI WEIJIANG JIN SHUMIAO ZHANG MENGYUAN FAN YIMENG LI YUPING MENG XUELIN TIAN SHUQIANG LIU DEFU HU | 2021 | BIOCELL2021，45，2： | 2 |
| 8 | Uncertainty and joint probability of sea ice loads显示文摘Uncertaintyandjointprobabilityofseaiceloads￥LiuDefu;YangYongchun;WangChaoandLiTongkui(OceanUniversityofQingdao,Qingdao266003,... | Liu Defu Yang Yongchun Wang Chao and Li Tongkui(Ocean University of Qingdao, Qingdao 266003, China)(Tianjin University, Tianjin 300072, China)(China Offshore Oil Design Engineering Corporation,Tianjin 300450, China) | 1995 | Acta Oceanologica Sinica1995，14，3： | 2 |
| 9 | Control of static unstable airframes显示文摘The challenge and control problems of static unstable missiles are presented. The steady-state benefits of static instability are illustrated, while the corresponding control challenge is described both by the characteristic lag of airframe and the increment of necessary control usage. Control limitation led by unstable zero-pole pair is analyzed for preliminary design and evaluation. Linear control strategy is examined wherein two and three loop acceleration autopilots with different control usages are developed using an optimal control approach combined with frequency domain constraint. The weights selection and relation with system performance are detailed. Then the nonlinear backstepping recursive method is detailed to determine how well it is able to follow command and its engineering feasibility. The results show that a static unstable missile is controllable, while the actuator bandwidth is the crucial limited factor. There should be a compromise between overall performance and actuator payment. | Junfang Fan Defu Lin Zhong Su Qing Li | 2010 | Journal of Systems Engineering and Electronics2010，21，6： | 2 |
| 10 | 2010 Industrial Report on Small and Medium Size Wind Turbines in China显示文摘The development of small and medium wind turbine industry in 2010 is presented, including the production capability, the mainstream products and the main producers. Suggestions for future's development are also put forward. | Li Defu | 2012 | Electricity2012，23，1： | 1 |
| 11 | Ultrasonic irradiation in the enzymatic extraction of collagen显示文摘 | LI Defu MU Changdao CAI Sumei | 2009 | Ultrasonics Sonochemistry2009，16，5： | 1 |
| 12 | Environmental Capital,Negative Externality and Carbon Finance Innovation显示文摘In the context of global climate change,the internalization of negative externality,which is brought about by the traditional mode of economic growth,has become an inevitable choice.In order to achieve the internalization,it is necessary to make innovations on the market mechanism and system,find the value of environmental capital,establish a new mode of economic growth based on environmental capital,and then transform the environmental capital,an exogenous factor of economic growth,into an endogenous factor.Of this,the key of market mechanism and system innovation is the financial innovation that is based on environmental capital and negative externality;the government defines the initial property right of environmental resources and establishes environment energy trading market,so as to guide enterprises to trade environmental resources(represented by carbon emission permit trading) based on the Clean Development Mechanism,and to vigorously develop environmental finance and carbon finance. | Tang Yuejun Li Defu | 2011 | Chinese Journal of Population,Resources and Environment2011，9，2： | 1 |
| 13 | Exfoliation corrosion of extruded 2024-T4 in the coastal environments in China显示文摘 | Shuangqing Sun Qifei Zheng Defu Li Songqing Hu Junguo Wen | 2011 | Corrosion Science2011，，8： | 1 |
| 14 | The microstructure evolution and nucleation mechanisms of dynamic recrystallization in hot-deformed Inconel 625 superalloy显示文摘 | Defu Li Qingmiao Guo Shengli Guo Haijian Peng Zhigang Wu | 2010 | Materials and Design2010，，2： | 1 |
| 15 | Long-term atmospheric corrosion behaviour of aluminium alloys 2024 and 7075 in urban, coastal and industrial environments显示文摘 | Shuangqing Sun Qifei Zheng Defu Li Junguo Wen | 2009 | Corrosion Science2009，，4： | 1 |
| 16 | Natural anthocyanins from phytoresources and their chemical researches显示文摘 | Xinying Li Hongyan Ma Huilian Huang Defu Li Shun Yao | 2013 | 2013 (4-5)2013，，4： | 1 |
| 17 | Encapsulated ecdysone by internal gelation of alginate microspheres for controlling its release and photostability显示文摘 | Huanan Guan Defu Chi Jia Yu He Li | 2010 | Chemical Engineering Journal2010，，1： | 1 |
| 18 | Temperature In- duced Denaturation of Collagen in Acidic Solution 显示文摘 | Changdao Mu Defu Li Wei Lin | 2007 | Biopolymers2007，86，： | 1 |
| 19 | Long-term atmospheric corrosion behaviour of aluminium alloys 2024 and 7075 in urban, coastal and industrial environments显示文摘 | Shuangqing Sun Qifei Zheng Defu Li Junguo Wen | 2009 | Corrosion Science2009，，4： | 1 |
| 20 | The Mierostruc ture Evolution and Nucleation Mechanisms of Dynamic Recrys- tallization in Hot-Deformed Inconel 625 Superalloy 显示文摘 | Li Defu Guo Qingmiao Guo Shengli | 2011 | Materi- als and Design2011，32，2： | 1 |
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