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| 1 | UAV Online Path Planning Algorithm in a Low Altitude Dangerous Environment显示文摘UAV online path-planning in a low altitude dangerous environment with dense obstacles, static threats(STs)and dynamic threats(DTs), is a complicated, dynamic, uncertain and real-time problem. We propose a novel method to solve the problem to get a feasible and safe path. Firstly STs are modeled based on intuitionistic fuzzy set(IFS) to express the uncertainties in STs. The methods for ST assessment and synthesizing are presented. A reachability set(RS) estimator of DT is developed based on rapidly-exploring random tree(RRT) to predict the threat of DT. Secondly a subgoal selector is proposed and integrated into the planning system to decrease the cost of planning, accelerate the path searching and reduce threats on a path. Receding horizon(RH) is introduced to solve the online path planning problem in a dynamic and partially unknown environment. A local path planner is constructed by improving dynamic domain rapidly-exploring random tree(DDRRT) to deal with complex obstacles. RRT* is embedded into the planner to optimize paths. The results of Monte Carlo simulation comparing the traditional methods prove that our algorithm behaves well on online path planning with high successful penetration probability. | Naifeng Wen Lingling Zhao Xiaohong Su Peijun Ma | 2015 | IEEE/CAA Journal of Automatica Sinica2015，2，2： | 15 |
| 2 | Effects of weaning age on growth, nutrient digestibility and metabolism,and serum parameters in Hu lambs显示文摘This study was conducted to investigate the effect of weaning age on growth performance, nutrient digestion and metabolism, and serological indicators, and to obtain an optimal weaning age in Hu lambs.Forty-eight newborn Hu lambs(birth weight, 2.53 ± 0.14 kg) were randomly divided into 4 groups. The lambs in control group(ER) suckled their dams. The lambs in other three experimental groups were weaned on milk replacer at 10.20, and 30 days of age(EW10, EW20, and EW30 groups),respectively. The results were as follows: 1) lambs in EW10 and EW30 groups had a lower(P < 0.05) ADG than those in ER group within 10 days post-weaning; the weaned lambs began to show a higher(P < 0.05) ADG than those in ER group after 20 days post-weaning. 2) EW10 and EW20 groups had a higher(P < 0.05) creep feed intake than EW30 and ER groups from 15 to 60 days of age. 3) The apparent digestibility of dry matter, organic matter, gross energy, nitrogen, ether extract and phosphorus, and the deposition of nitrogen and phosphorus did not differ(P > 0.05) among groups; however, the apparent digestibility and deposition of calcium in early weaned lambs were lower(P < 0.05) than those in ewe-reared lambs. 4)The albumin content in EW30 group was lower(P < 0.05) than that in ER group; the globulin content in EW30 group was higher(P < 0.05) than that in other groups; the content of serum insulin-like growth factor-1 in weaned lambs tended to increase compared with lambs in ER group. Finally, the growth rate of lambs decreased within 10 days post-weaning, but early weaning boosted creep feed intake, leading to better growth and health later in life. The Hu lambs can be weaned on milk replacer and creep feed at 10 days of age. | Jianmin Chai Qiyu Diao Haichao Wang Yan Tu Xiaojing Tao Naifeng Zhang | 2015 | Animal Nutrition2015，，4： | 10 |
| 3 | Effect of supplementation of allicin on methanogenesis and ruminal microbial flora in Dorper crossbred ewes显示文摘Background: Garlic extracts have been reported to be effective in reducing methanogenesis. Related mechanisms are not well illustrated, however, and most studies have been conducted in vitro. This study investigates the effects of supplementary allicin(AL) in sheep diet on in vivo digestibility, rumen fermentation, and shifts of microbial flora.Methods: Two experiments were conducted using Dorper × thin-tailed Han crossbred ewes. In experiment 1,eighteen ewes(60.0 ± 1.73 kg BW) were randomly assigned for 29 days to either of two dietary treatments: a basal diet or the basal diet supplemented with 2.0 g AL/head?day to investigate supplementary AL on nutrient digestibility and methane emissions. In experiment 2, six ewes(65.2 ± 2.0 kg BW) with ruminal canulas were assigned to the same two dietary treatments as in experiment 1 for 42 days to investigate supplementary AL on ruminal fermentation and microbial flora. The methane emissions were determined using an open-circuit respirometry system and microbial assessment was done by q PCR of 16 S r RNA genes.Results: Supplementary AL increased the apparent digestibility of organic matter(P < 0.001), nitrogen(P = 0.006),neutral detergent fiber(P < 0.001), and acid detergent fiber(P = 0.002). Fecal nitrogen output was reduced(P = 0.001)but urinary nitrogen output was unaffected(P = 0.691), while nitrogen retention(P = 0.077) and nitrogen retention/nitrogen intake(P = 0.077) tended to increase. Supplementary AL decreased methane emissions scaled to metabolic bodyweight by 5.95 %(P = 0.007) and to digestible organic matter intake by 8.36 %(P = 0.009). Ruminal p H was unaffected(P = 0.601) while ammonia decreased(P = 0.024) and total volatile fatty acids increased(P = 0.024) in response to supplementary AL. Supplementary AL decreased the population of methanogens(P = 0.001) and tended to decrease that of protozoans(P = 0.097), but increased the populations of F. succinogenes(P < 0.001), R. flavefaciens(P = 0.001), and B. fibrisolvens(P = 0.001).Conclusions: Supplementation of AL at 2.0 g/head?day effectively enhanced OM, N, NDF, and ADF digestibility and reduced daily methane emissions(L/kg BW0.75) in ewes, probably by decreasing the population of ruminal protozoans and methanogens. | Tao Ma Dandan Chen Yan Tu Naifeng Zhang Bingwen Si Kaidong Deng Qiyu Diao | 2016 | Journal of Animal Science and Biotechnology2016，7，2： | 9 |
| 4 | Diversity and conservation of Chinese wild begonias显示文摘Begonia, one of the most diverse plant taxa and the fifth or sixth largest angiosperm genus, consists of over1800 accepted species. The number of species recognized within this genus has greatly increased over the past 20 years, rising from 80 to 200 species in China alone. Based on recent field surveys, the number of begonia species in China is predicted to be between 250 and 300. Given the large number of begonia species that still remain to be described, further taxonomical work is urgently required. This is especially true for Chinese Begonia, in which there is a huge diversity of habitat, habit, plant size, leaf type, flower and fruit morphology, and most species are narrowly distributed in isolated habitats that are subject to negative disturbances from climate change, as well as agricultural and industrial activities. Although the conservation status for the majority of species has been evaluated using the standards of the International Union for Conservation of Nature, the results don't represent the truth in many species, and also about11.5% of which are data-absent. In addition, illegal collection and over-harvesting of wild begonias for ornamental or medicinal use has increased due to the rapid development of internet commerce. Far more often than predicted, these species should be categorized as rare and endangered and require immediate protection. Ex situ conservation of Chinese begonias started in 1995 and over 60% of the total species have been so far introduced into cultivation by several major botanical gardens in China. However, only few research institutions, limited funds and human resources have been involved in Begonia conservation;moreover, no project has conducted reintroduction. Therefore, more conservation-based work remains to be done. Improved conservation of Chinese begonias in the future depends on further field survey, an improved understanding of population diversity, and integrative approaches, including in situ and ex situ conservation, seed banking, and plant reintroduction. Species-targeted conservation zones should be established for endangered species excluded from the existing nature reserves. Additionally, laws pertaining to plant protection should be extended to prevent the illegal collection and transaction of wild plants, particularly for those species with unique habitats and small populations. | Daike Tian Yan Xiao Yi Tong Naifeng Fu Qingqing Liu Chun Li | 2018 | Plant Diversity2018，40，3： | 4 |
| 5 | Role of methionine on epigenetic modification of DNA methylation and gene expression in animals显示文摘DNA methylation is one of the main epigenetic phenomena affecting gene expression.It is an important mechanism for the development of embryo,growth and health of animals.As a key nutritional factor limiting the synthesis of protein,methionine serves as the precursor of S-adenosylmethionine(SAM) in the hepatic one-carbon metabolism.The dietary fluctuation of methionine content can alter the levels of metabolic substrates in one-carbon metabolism,e.g.,the SAM,S-adenosylhomocysteine(SAH),and change the expression of genes related to the growth and health of animals by DNA methylation reactions.The ratio of SAM to SAH is called ‘methylation index' but it should be carefully explained because the complexity of methylation reaction.Alterations of methylation in a specific cytosine-guanine(Cp G)site,rather than the whole promoter region,might be enough to change gene expression.Aberrant methionine cycle may provoke molecular changes of one-carbon metabolism that results in deregulation of cellular hemostasis and health problems.The importance of DNA methylation has been underscored but the mechanisms of methionine affecting DNA methylation are poorly understood.Nutritional epigenomics provides a promising insight into the targeting epigenetic changes in animals from a nutritional standpoint,which will deepen and expand our understanding of genes,molecules,tissues,and animals in which methionine alteration influences DNA methylation and gene expression. | Naifeng Zhang | 2018 | Animal Nutrition2018，，1： | 4 |
| 6 | Advanced glycation end-product N ? -carboxymethyl-Lysine accelerates progression of atherosclerotic calcification in diabetes显示文摘 | Zhongqun Wang Yicheng Jiang Naifeng Liu Liqun Ren Yinghong Zhu Yanli An Dengyu Chen | 2012 | Atherosclerosis2012，，2： | 2 |
| 7 | Pioglitazone suppresses advanced glycation end product-induced expression of plasminogen activator inhibitor-1 in vascular smooth muscle cells显示文摘在糖尿病的脉管的复杂并发症预付 glycation 结束产品(年龄) 玩一个重要角色,包括 fibrinolytic 畸形。Pioglitazone, peroxisome 激活 proliferator 的受体 gamma (PPAR ) 收缩筋,最近被显示了减少传播 plasminogen 使活跃之物 inhibitor-1 (PAI-1 ) 在糖尿病 mellitus 的层次。在现在的学习,我们在脉管的光滑的肌肉房间(VSMC ) 到年龄和内在的机制导致了的老鼠在本地 PAI-1 的表示上调查了 pioglitazone 的效果。结果证明年龄能在蛋白质水平在 mRNA 和 2.7 褶层由 5.1 褶层提高 PAI-1 表示,作为由即时 RT-PCR 并且分别地的西方的弄污评估了。Pioglitazone 在 VSMC 被发现刺激年龄的 PAI-1 表示到下面调整。然而,这些禁止的效果被 PPAR 对手部分稀释, GW9662。而且,我们发现年龄在细胞外的调整信号的蛋白质 kinase 1/2 (ERK1/2 ) 的 phosphorylation 和激活导致了快速的增加。英皇家空军之阶级最低之兵 kinase 禁止者, U0126,部分到年龄阻止了 PAI-1 的正式就职。而且, pioglitazone 也被发现禁止 ERK1/2 的 phosphorylation。一起拿, pioglitazone 能禁止导致年龄的 PAI-1 表示,这被结束,它被 ERK1/2 和 PPAR 小径调停。我们的调查结果建议 pioglitazone 在改进 fibrinolytic 活动,并且因而阻止糖尿病和心血管的疾病的 thromboembolic 复杂并发症有一个治疗学的潜力。 | Xiaochen Yuan Naifeng Liu | 2011 | Journal of Genetics and Genomics2011，38，5： | 2 |
| 8 | The relationship between microbial N synthesis and urinary excretion of purine derivatives in Dorper<ce:hsp sp='0.25'/>×<ce:hsp sp='0.25'/>thin-tailed Han crossbred sheep显示文摘 | Tao Ma Kaidong Deng Chenggang Jiang Yan Tu Naifeng Zhang Jie Liu Yiguang Zhao Qiyu Diao | 2012 | Small Ruminant Research2012，，： | 1 |
| 9 | Effects of N ε -carboxymethyl-Lysine on ERS-mediated apoptosis in diabetic atherosclerosis显示文摘 | Zhongqun Wang Jinchuan Yan Lihua Li Naifeng Liu Yi Liang Wei Yuan Xiaojie Chen | 2014 | International Journal of Cardiology2014，，： | 1 |
| 10 | Growth and characterization of Yb:BaWO4 single crystal显示文摘 | Lin Xinsang Chen Jingling Zlmang Naifeng Zhao Bin Chen Jianzhong | 2005 | Journal of Crystal Growth2005，277，： | 1 |
| 11 | Geochemistry and tectonic significance of Early Cretaceous granites in Highland 1248 of Daxing'anling显示文摘The Early Cretaceous granitic complex in Highland 1248 of Daxing'anling successively consists of intruded granodiorite,monzonite granite and syenite granite. Through test analysis on the major,trace and rare earth elements of the intrusive complex,this study focuses on the source characteristics and tectonic environment of the original magma of intrusive complex. The results show that the intrusive rocks in Highland 1248 are meta-aluminous-peraluminous rocks in calc-alkaline series with homologous characteristics in δEu negative anomalies; the complex is enriched in LILE( Rb,Cs and K) and depleted in HFSE( lanthanide,Sc,Y,U,Nb and Ta),displaying the geochemical characteristics of I-type granites in active continental-margin subduction zones. The complex also has the characteristics of granites after the collision of plate with rich aluminum and high potassium,but significantly depleted Nb,Ta,Ti,P and other elements,i. e. in the orogenic evolutionary stage. The zircon U-Pb SHRIMP isotopic apparent age of the complex in Highland 1248 is 140. 0--141. 0Ma,and the formation time is in Early Cretaceous. | YANG Naifeng YANG Liting WANG Chunguang | 2014 | Global Geology2014，17，2： | 1 |
| 12 | Rapid growth of Fe3O4 nanowires with oxide assisted vapor-solid process显示文摘 | Chang Ming Hsu Naifeng Chung Chinchun | 2010 | Mater Lett2010，64，9： | 1 |
| 13 | The determination of AGE-peptides by flow injection assay, a practical marker of diabetic nephropathy 显示文摘 | Zilin S Naifeng L Bicheng L | 2001 | Clin Chim Aeta2001，313，12： | 1 |
| 14 | Identification of a- mino acid residues involved in the binding of Huperzine A to cho- linesterases显示文摘 | Saxena A Qian Naifeng Kovach I M | 1994 | Protein Sci1994，3，： | 1 |
| 15 | TRANSPORT-EM-a program used for calculating beam line 显示文摘 | Mao Naifeng Xiao Meiqin Li Zenghai | 1986 | Atomic Energy Science and Technology1986，20，6： | 1 |
| 16 | 显示文摘 | Zhuang Naifeng Lina Zhoubin Hu Zushu | 2005 | Journal of Crystal Growth2005，277，： | 1 |
| 17 | 显示文摘 | Lin Xinsong Chen Jingling Zhuang Naifeng | 2005 | Journal of Crystal Growth2005，277，： | 1 |
| 18 | Net protein and metabolizable protein requirements for maintenance and growth of early-weaned Dorper crossbred male lambs显示文摘Background: Dorper is an important breed for meat purpose and widely used in the livestock industry of the world.However, the protein requirement of Dorper crossbred has not been investigated. The current paper reports the net protein(NP) and metabolizable protein(MP) requirements of Dorper crossbred ram lambs from 20 to 35 kg BW.Methods: Thirty-five Dorper × thin-tailed Han crossbred lambs weaned at approximately 50 d of age(20.3 ± 2.15 kg of BW) were used. Seven lambs of 25 kg BW were slaughtered as the baseline animals at the start of the trial. An intermediate group of seven randomly selected lambs fed ad libitum was slaughtered at 28.6 kg BW. The remaining 21 lambs were randomly divided into three levels of dry matter intake: ad libitum or 70% or 40% of ad libitum intake. Those lambs were slaughtered when the lambs fed ad libitum reached 35 kg BW. Total body N and N retention were measured.Results: The daily NP and MP requirements for maintenance were 1.89 and 4.52 g/kg metabolic shrunk BW(SBW0.75).The partial efficiency of MP utilization for maintenance was 0.42. The NP requirement for growth ranged from 12.1 to 43.5 g/d, for the lambs gaining 100 to 350 g/d, and the partial efficiency of MP utilization for growth was 0.86.Conclusions: The NP and MP requirements for the maintenance and growth of Dorper crossbred male lambs were lower than the recommendations of American and British nutritional systems. | Tao Ma Kaidong Deng Yan Tu Naifeng Zhang Bingwen Si Guishan Xu Qiyu Diao | 2017 | Journal of Animal Science and Biotechnology2017，8，3： | 1 |
| 19 | A study on the growth of Yb: YVO4 single crystal显示文摘 | Chen Jianzhong Guo Feiyun Zhuang Naifeng | 2002 | Journal of Crystal Growth2002，243，： | 1 |
| 20 | Growth and spectrum properties of Yb: GdVO4 single crystal显示文摘 | Hu Xiaolin Chen Jianzhong Zhuang Naifeng | 2003 | Journal of Crystal Growth2003，256，： | 1 |
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