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| 1 | Supplementation with sodium butyrate improves growth and antioxidant function in dairy calves before weaning显示文摘Background: There is increasing research interest in using short-chain fatty acids(SCFAs) including butyrate as potential alternatives to antibiotic growth promoters in animal production. This study was conducted to evaluate the effects of supplementation of sodium butyrate(SB) in liquid feeds(milk, milk replacer, and the mixture of both)on the growth performance, rumen fermentation, and serum antioxidant capacity and immunoglobins in dairy calves before weaning. Forty healthy female Holstein calves(4-day-old, 40 ± 5 kg of body weight) were housed in individual hutches and randomly allocated to 1 of 4 treatment groups(n = 10 per group) using the RAND function in Excel. The control group was fed no SB(SB0), while the other three groups were supplemented with 15(SB15),30(SB30), or 45(SB45) g/d of SB mixed into liquid feeds offered. The calves were initially fed milk only(days 2 to 20), then a mixture of milk and milk replacer(days 21 to 23), and finally milk replacer only(days 24 to 60).Results: The SB supplementation enhanced growth and improved feed conversion into body weight gain compared with the SB0 group, and the average daily gain increased quadratically with increasing SB supplementation. No significant effect on rumen pH;concentrations of NH_3-N, individual and total VFAs;or acetate:propionate(A:P) ratio was found during the whole experimental period. Serum glutathione peroxidase activity increased linearly with the increased SB supplementation, while the serum concentration of maleic dialdehyde linearly decreased. Serum concentrations of immunoglobulin A, immunoglobulin G, or immunoglobulin M were not affected by the SB supplementation during the whole experimental period.Conclusions: Under the conditions of this study, SB supplementation improved growth performance and antioxidant function in pre-weaned dairy calves. We recommended 45 g/d as the optimal level of SB supplementation mixed into liquid feeds(milk or milk replacer) to improve the growth and antioxidant function of dairy calves before weaning. | Wenhui Liu ALa Teng Zhu La Alexander Evans Shengtao Gao Zhongtang Yu Dengpan Bu Lu Ma | 2021 | Journal of Animal Science and Biotechnology2021，12，1： | 10 |
| 2 | Effect of Panax notoginseng saponins on the expression of beta-amyloid protein in the cortex of the parietal lobe and hippocampus, and spatial learning and memory in a mouse model of senile dementia显示文摘BACKGROUND: The pharmacological actions of Panax notoginseng saponins (PNS) lie in removing free radicals, anti-inflammation and anti-oxygenation. It can also improve memory and behavior in rat models of Alzheimer’s disease. OBJECTIVE: Using the Morris water maze, immunohistochemistry, real-time PCR and RT-PCR, this study aimed to measure improvement in spatial learning, memory, expression of amyloid precursor protein (App) and β-amyloid (Aβ), to investigate the mechanism of action of PNS in the treatment of AD in the senescence accelerated mouse-prone 8 (SAMP8) and compare the effects with huperzine A. DESIGN, TIME AND SETTING: A completely randomized grouping design, controlled animal experiment was performed in the Center for Research & Development of New Drugs, Guangxi Traditional Chinese Medical University from July 2005 to April 2007. MATERIALS: Sixty male SAMP8 mice, aged 3 months, purchased from Tianjin Chinese Traditional Medical University of China, were divided into four groups: PNS high-dosage group, PNS low-dosage group, huperzine A group and control group. PNS was provided by Weihe Pharmaceutical Co., Ltd. (batch No.: Z53021485, Yuxi, Yunan Province, China). Huperzine A was provided by Zhenyuan Pharmaceutical Co., Ltd. (batch No.: 20040801, Zhejiang, China). METHODS: The high-dosage group and low-dosage group were treated with 93.50 and 23.38 mg/kg PNS respectively per day and the huperzine A group was treated with 0.038 6 mg/kg huperzine A per day, all by intragastric administration, for 8 consecutive weeks. The same volume of double distilled water was given to the control group. MAIN OUTCOME MEASURES: After drug administration, learning and memory abilities were assessed by place navigation and spatial probe tests. The recording indices consisted of escape latency (time-to-platform), and the percentage of swimming time spent in each quadrant. The number of Aβ1-40, Aβ1-42 and App immunopositive neurons in the brains of SAMP8 mice was analyzed by immunohistochemistry. The mRNA content of App, tau, acetylcholinesterase, and synaptophysin (Syp) was tested by real time PCR and RT-PCR. RESULTS: The PCR results show that PNS can downregulate the expression of the App gene and upregulate the expression of the Syp gene in the parietal cortex and hippocampus of SAMP8 mice. The therapeutic effects of the PNS high-dosage group were greater than those of the PNS low-dosage group and the huperzine A group (P < 0.05). The results of the Morris water maze and immunohistochemistry indicated that PNS can improve the capacity for spatial learning and memory in SAMP8 mice, and reduce the content of Aβ1-40, Aβ1-42 and expression of App in the brains of SAMP8 mice. The therapeutic effects of the PNS high-dosage group were greater than that of the PNS low-dosage group and the huperzine A group (P < 0.05). CONCLUSION: These results support the hypothesis that PNS plays a therapeutic and protective role on the pathological lesions and learning dysfunction of Alzheimer’s disease. The therapeutic effects of PNS for Alzheimer’s disease are possibly achieved through downregulating the expression of the App gene and upregulating the expression of the Syp gene. The therapeutic effects of PNS are dose-dependent and are greater than the effect of huperzine A. | Zhenguo Zhong Dengpan Wu Liang Lu Jinsheng Wang Wenyan Zhang Zeqiang Qu | 2008 | Neural Regeneration Research2008，3，12： | 9 |
| 3 | Milk selenium content and speciation in response to supranutritional selenium yeast supplementation in cows显示文摘The effects of selenium(Se)yeast supplementation on performance,blood biochemical and antioxidant parameters,and milk Se content and speciation were evaluated.Thirty-six mid-lactation Holstein dairy cows were randomly assigned to 1 of 3 treatments:1)control(basal diet containing Se at 0.11 mg/kg DM),2)basal diet+0.5 mg supplemental Se/kg DM(SY-0.5),and 3)basal diet+5 mg supplemental Se/kg DM(SY-5).Selenium was supplemented as Se yeast.The trial consisted of a 1-week pretrial period and an 8-week experimental period.Milk somatic cell score decreased with SY-5 supplementation(P<0.05),but other performance parameters were not affected(P>0.05).The serum Se concentration increased with the increasing levels of Se yeast supplementation(P<0.05),however,blood biochemical parameters showed few treatment effects.The antioxidant capacity of dairy cows was improved with Se yeast supplementation reflected in increased serum glutathione peroxidase activity(P<0.05)and total antioxidant capacity(P=0.08),and decreased malondialdehyde concentration(P<0.05).Milk total Se concentration increased with Se dose(P<0.05).Also,the selenomethionine concentration increased with Se dose from 13.0±0.7 pg/kg in control to 33.1±2.1 pg/kg in SY-0.5 and 530.4±17.5 pg/kg in SY-5 cows(P<0.05).Similarly,selenocystine concentration increased from 15.6±0.9μg/kg in control and 18.9±1.1 pg/kg in SY-0.5 to 22.2±1.5 pg/kg in SY-5 cows(P<0.05).In conclusion,Se yeast is a good organic Se source to produce Se-enriched cow milk with increased Se species including selenomethionine and selenocystine.The results can provide useful information on milk Se species when a high dose Se yeast was supplemented in the cow diet. | Lingling Sun Gentao Liu Dongmei Xu Zhaohai Wu Lu Ma Sanz-Fernandez M.Victoria Lance H.Baumgard Dengpan Bu | 2021 | Animal Nutrition2021，，4： | 6 |
| 4 | Contributions of climate, varieties, and agronomic management to rice yield change in the past three decades in China显示文摘和一个庄稼模拟模型,在四个代表性的 agro 气象学的车站的长期的地实验数据被用来在过去的三十年解开大米收益变化的气候变化,变化更新,和授精管理的贡献。我们发现在 1981-2009 变化期间,更新由 16%-52% 增加了米饭产量,管理改进由产量从 16% ~ 10% 改变了的米饭的气候变化的 0-16% ,和贡献增加了产量。变化更新和气候的否定影响在米饭生产上改变的管理改进偏移量。在主要气候变量之中,在太阳的放射的减少到 0.1%per 年平均减少了米饭产量。温度变化的影响有一个明确的空间模式。它在 Tongcheng 车站在 Xinbin 和 Ganyu 车站并且为迟了的米饭为单个米饭每年由 0.04%-0.4% 增加了产量,由在 Tongcheng 在 Mianyang 车站和早米饭为单个米饭每年由 0.2%-0.4% 对比减少的产量车站。在 1981-2009 期间,米饭变化更新被热要求的增加描绘,谷物数字每尖铁和收获索引。新变化比旧的对气候变化不太敏感。高热的要求,高收益潜力和热的发展和农学的管理的改进,容忍的米饭变化应该被鼓励在未来遇见气候变化和增加的食物需求的挑战。 | He ZHANG Fulu TAO Dengpan XIAO Wenjiao SHI Fengshan LIU Shuai ZHANG Yujie LIU Meng WANG Huizi BAI | 2016 | Frontiers of Earth Science2016，10，2： | 5 |
| 5 | NEXT:a neural network framework for next POI recommendation显示文摘The task of next POI recommendations has been studied extensively in recent years.However,developing a unified recommendation framework to incorporate multiple factors associated with both POIs and users remains challenging,because of the heterogeneity nature of these information.Further,effective mechanisms to smoothly handle cold-start cases are also a difficult topic.Inspired by the recent success of neural networks in many areas,in this paper,we propose a simple yet effective neural network framework,named NEXT,for next POI recommendations.NEXT is a unified framework to learn the hidden intent regarding user's next move,by incorporating different factors in a unified manner.Specifically,in NEXT,we incorporate meta-data information,e.g.,user friendship and textual descriptions of POIs,and two kinds of temporal contexts(i.e.,time interval and visit time).To leverage sequential relations and geographical influence,we propose to adopt DeepWalk,a network representation learning technique,to encode such knowledge.We evaluate the effectiveness of NEXT against other state-of-the-art alternatives and neural networks based solutions.Experimental results on three publicly available datasets demonstrate that NEXT significantly outperforms baselines in real-time next POI recommendations.Further experiments show inherent ability of NEXT in handling cold-start. | Zhiqian ZHANG Chenliang LI Zhiyong WU Aixin SUN Dengpan YE Xiangyang LUO | 2020 | Frontiers of Computer Science2020，14，2： | 5 |
| 6 | Comparison of winter wheat yield sensitivity to climate variables under irrigated and rain-fed conditions显示文摘庄稼模拟模型提供决定庄稼产量的敏感到气候变化的其他、不太费时间、划算的工具。在这研究,二个动态机械学的模型,谷神星(庄稼环境资源合成)和 APSIM (农业生产系统模拟器),被用来在灌溉的井( CFG )下面模仿小麦( Triticum aestivum L.)的收益并且喂雨( YY )在北方中国平原( NCP )在与不同气候变量的关系调节。学习测试了冬季小麦收益敏感到温度,放射,降水,和大气的二氧化碳的不同层次(在在在 NCP 的 Luancheng Agro 生态系统试验性的车站的 CFG 和 YY 条件下面的公司 2) 集中。从 CERES 和 APSIM 小麦庄稼模型的结果大部分是一致的并且建议在气候变量的变化在 NCP 影响了小麦谷物产量。也在到在不同的水(CFG 和 YY ) 下面的气候变量的产量调节的冬季小麦的敏感有重要变化。当时 2 湩漠桴牥瀠潥汰 e 的温度增加? | Dengpan XIAO Yanjun SHEN He ZHANG Juana P. MOIWO Yongqing QI Rende WANG Hongwei PEI Yucui ZHANG Huitao SHEN | 2016 | Frontiers of Earth Science2016，10，3： | 4 |
| 7 | Experimental and numerical investigation on opposing plasma synthetic jet for drag reduction显示文摘Experimental and numerical studies are carried out to validate the potential of opposing Plasma Synthetic Jet(PSJ)for drag reduction for a hemisphere.Firstly,flow field changes of opposing PSJ are analyzed by comparing the experimental schlieren images and simulation results in a supersonic free stream of Mach number 3.As PSJ is a kind of unsteady pulsed jet,the shock standoff distance increases initially and then decreases under the control of PSJ,which corresponds to the change of the strength of PSJ.Accordingly,the amount of drag reduction of the hemisphere increases initially and then decreases.It is found that there is a short period of“drag rise”during the formation of PSJ before the drag reduction,which is induced by the generation of normal shock waves and the area difference of the cavity wall of PSJ Actuator(PSJA).Secondly,the effects of five parameters,including exit diameter,discharge energy of PSJA,Mach number,static pressure of incoming flow and angle of attack,on drag reduction of opposing PSJ were studied in detail by using numerical method.It is found that the Maximum Pressure Ratio(MPR)has a significant impact on the average drag reduction for a configuration-determined PSJA.For the configuration selected in this study,the flow field of opposing PSJ shows typical Short Penetration Mode(SPM)in a control cycle of PSJ when the MPR is less than 0.89.However,the flow field shows typical Long Penetration Mode(LPM)at some time when the MPR is bigger than 0.89.Relatively better drag reduction is achieved in this case. | Wei XIE Zhenbing LUO Yan ZHOU Wenqiang PENG Qiang LIU Dengpan WANG | 2022 | Chinese Journal of Aeronautics2022，35，8： | 4 |
| 8 | A phylogenetic census of global diversity of gut anaerobic fungiand a new taxonomic framework显示文摘Obligate anaerobic fungi of the phylum Neocallimastigomycota play a key role in digesting fibrous feeds in the gut ofherbivores, but little is known about their global diversity. In this study, the collective diversity of gut anaerobic fungi wasexamined using all curated internal transcribed spacer 1 (ITS1) sequences of anaerobic gut fungi available in GenBank.The 262,770 quality-checked fungal ITS1 sequences downloaded from GenBank were assigned to 274 operational taxonomic units (OTUs) at the approximate species level. Of these approximate species-equivalent (Sp-eq) OTUs, 119 wererepresented by at least five ITS1 sequences, with 38 containing known species and 81 containing no known species. Basedon a rarefaction analysis, the currently available ITS1 sequences represent nearly all the major species of gut anaerobicfungi, but much more sequencing effort is needed to assess the actual richness of minor OTUs. One dataset of ITS1reference sequences (referred to as AF-RefSeq) and one comprehensive taxonomic framework are also presented, and theyare shown to be suitable for taxonomic classification of most of the ITS1 sequences in GenBank. The results of the presentstudy may help guide future studies involving taxonomic and phylogenetic analysis of ITS1 sequences of anaerobic fungiand targeted isolation and characterization of new anaerobic fungi. | Shyam Sundar Paul Dengpan Bu Jianchu Xu Kevin D.Hyde Zhongtang Yu | 2018 | Fungal Diversity2018，，2： | 4 |
| 9 | Structural design and parameter determination for fluted-roller fertilizer applicator显示文摘The instability of the motion layer of fertilizer particle influences the precision and the accuracy of the amount of fertilizer application in the working process of fluted-roller fertilizer applicator.The characteristics of the motion layer were investigated,and a systematic scheme was proposed for designing the structures of fertilizer-filling cavity,fertilizer-filling surface and fertilizer-delivery cavity.The key parameters of the structure were studied by discrete element method.It was figured out that to ensure the smooth operation of fertilizer applicator,the fertilizer-filling angle was 105°,fertilizer-contact angle should be large than 100°,and the fertilizer-resistance angle should be smaller than 35°.Moreover,the stability of fertilizer motion morphology was investigated to verify the design.The results showed that when the roll rotational speed was larger than 120 deg/s,compared with the conventional design the CV of the amount of fertilizer application was reduced from 1.5%-3.5%to 0.5%-1.0%,and the accuracy of the fertilizer discharge was improved with the square of the correlation coefficient between the amount of fertilizer application and the roll rotational speed was larger than 0.999.It was deduced from the results that the precision and accuracy of the amount of fertilizer application are improved via eliminating the driving layer and enhancing the stable filling and conveying of the forced layer. | Shan Zeng Yipeng Tan Yu Wang Xiwen Luo Lamei Yao Dengpan Huang Zewen Mo | 2020 | International Journal of Agricultural and Biological Engineering2020，13，2： | 4 |
| 10 | Imaging of the Space-time Structure of a Vortex Generator in Supersonic Flow显示文摘The fine space-time structure of a vortex generator (VG) in supersonic flow is studied with the nanoparticle-based planar laser scattering (NPLS) method in a quiet supersonic wind tunnel. The fine coherent structure at the symmetrical plane of the flow field around the VG is imaged with NPLS. The spatial structure and temporal evolution characteristics of the vortical structure are analyzed, which demonstrate periodic evolution and similar geometry, and the characteristics of rapid movement and slow change. Because the NPLS system yields the flow images at high temporal and spatial resolutions, from these images the position of a large scale structure can be extracted precisely. The position and velocity of the large scale structures can be evaluated with edge detection and correlation algorithms. The shocklet structures induced by vortices are imaged, from which the generation and development of shocklets are discussed in this paper. | WANG Dengpan XIA Zhixun ZHAO Yuxin WANG Bo ZHAO Yanhui | 2012 | Chinese Journal of Aeronautics2012，25，1： | 3 |
| 11 | Dietary energy sources and levels shift the multi-kingdom microbiota and functions in the rumen of lactating dairy cows显示文摘Background: Dietary energy source and level in lactation diets can profoundly affect milk yield and composition.Such dietary effects on lactation performance are underpinned by alteration of the rumen microbiota, of which bacteria, archaea, fungi, and protozoa may vary differently. However, few studies have examined all the four groups of rumen microbes. This study investigated the effect of both the level and source of dietary energy on rumen bacteria, archaea, fungi, and protozoa in the rumen of lactating dairy cows. A 2 × 2 factorial design resulted in four dietary treatments: low and high dietary energy levels(LE: 1.52–1.53;and HE: 1.71–1.72 Mcal/kg dry matter) and two dietary energy sources(GC: finely ground corn;and SFC: steam-flaked corn). We used a replicated 4 × 4 Latin square design using eight primiparous Chinese Holstein cows with each period lasting for 21 d. The rumen microbiota was analyzed using metataxonomics based on kingdom-specific phylogenetic markers [16 S r RNA gene for bacteria and archaea, 18 S r RNA gene for protozoa, and internally transcribed spacer 1(ITS1) for fungi] followed with subsequent functional prediction using PICRUSt2.Results: The GC resulted in a higher prokaryotic(bacterial and archaeal) species richness and Faith's phylogenetic diversity than SFC. For the eukaryotic(fungi and protozoa) microbiota, the LE diets led to significantly higher values of the above measurements than the HE diets. Among the major classified taxa, 23 genera across all the kingdoms differed in relative abundance between the two dietary energy levels, while only six genera(none being protozoal)were differentially abundant between the two energy sources. Based on prokaryotic amplicon sequence variants(ASVs) from all the samples, overall functional profiles predicted using PICRUSt2 differed significantly between LE and HE but not between the two energy sources. Fish Taco analysis identified Ruminococcus and Coprococcus as the taxa potentially contributing to the enriched KEGG pathways for biosynthesis of amino acids and to the metabolisms of pyruvate, glycerophospholipid, and nicotinate and nicotinamide in the rumen of HE-fed cows. The co-occurrence networks were also affected by the dietary treatments, especially the LE and GC diets, resulting in distinct co-occurrence networks. Several microbial genera appeared to be strongly correlated with one or more lactation traits.Conclusions: Dietary energy level affected the overall rumen multi-kingdom microbiota while little difference was noted between ground corn and steam-flaked corn. Some genera were also affected differently by the four dietary treatments, including genera that had been shown to be correlated with lactation performance or feed efficiency.The co-occurrence patterns among the genera exclusively found for each dietary treatment may suggest possible metabolic interactions specifically affected by the dietary treatment. Some of the major taxa were positively correlated to milk properties and may potentially serve as biomarkers of one or more lactation traits. | Tansol Park Lu Ma Ying Ma Xiaoqiao Zhou Dengpan Bu Zhongtang Yu | 2020 | Journal of Animal Science and Biotechnology2020，11，4： | 3 |
| 12 | Separation and recovery of associated rare earths from the Zhijin phosphorite using hydrochloric acid显示文摘The separation and extraction of associated rare earths from the Zhijin phosphorite mine is of great interest. Based on previous studies, the hydrolysis of phosphate ore using hydrochloric acid was systematically studied through extensive testing. Experiments were conducted to separate and recover the rare earths from the hydrolysis solution. Kinetic studies on the acidolysis of phosphorite using hydrochloric acid show that the use of hydrochloric acid in the acidolysis of phosphorite is mainly controlled by a chemical reaction and is also a diffusion-controlled reaction. When 210 L of HCL per 100 kg of phosphorite was used at 30 ℃ for 360 min, 96.1% of the P_2 O_5 and 95.0% of the rare earths are leached from the phosphorite. After defluorination and purification, the pH of the phosphate-acid solution is adjusted to 2.1 using sodium hydroxide, and a rare earth concentrate with rare earth content of 1.76 wt%is obtained; i.e., 90.1% of the rare earths are recovered. The rare earth content is increased to more than5 wt% through multiple enrichment processes, with a total yield of 59.5%. | Dengpan Nie An Xue Mingyang Zhu Yu Zhang Jianxin Cao | 2019 | Journal of Rare Earths2019，37，4： | 3 |
| 13 | Multi-resolution Analysis of Density Fluctuation of Coherent Structures About Supersonic Flow over VG显示文摘The density field around a vortex generator (VG) in supersonic flow is studied with a nanoparticle-based planar laser scattering (NPLS) method. Based on the calibration, i.e., the density distribution of the supersonic flow around a wedge, the density field of a supersonic VG is measured. According to movement characteristics of coherent structure in VG's flow fields and the basic concepts of wavelet, the density fluctuating signals and multi-resolution characteristics of density field images are studied. The multi-resolution characteristics of density fluctuation can be analyzed with wavelet transformation of NPLS images. The wavelet approximate coefficients of density fluctuating signals exhibit their characteristics at different scales, and the corresponding detail coefficients show the difference of diverse layer smooth approximation in some way. Based on 2D wavelet decomposition and reconstruction of density field images, the approximate and detail signals at different scales are studied, and the coherent structures at different scales are extracted and analyzed. | WANG Dengpan ZHAO Yuxin XIA Zhixun WANG Qinghua HUANG Xu | 2012 | Chinese Journal of Aeronautics2012，25，2： | 2 |
| 14 | Nutrient value of wild fodder species and the implications for improving the diet of mithun (Bos frontalis) in Dulongjiang area, Yunnan Province, China显示文摘Wild fodder plants are valuable because they provide an important livestock feed resource globally,especially for smallholder farmers,and have important roles in natural resource management.In-depth knowledge of wild forage plants can motivate local people for feed resource and habitat conservation of threatened herbivores such as Mithun(Bos frontalis).Mithun occur in small patches in the mountains of Dulongjiang,nearby villagers domesticated this animal but left animal to freely graze in the mountains.Many fodder plants occur in these mountains,however,little is known about their nutritional value.We conducted an ethnobotanical survey to document important wild fodder plants consumed by mithun in the Dulongjiang Township.The nutritional content of 21 highly mentioned wild fodder plants in an ethnobotanical survey was examined.Laboratory analysis showed that Fagopyrum dibotrys were the fodder species with the highest crude protein(CP)content(26.89%),followed by Polygonum molle(21.88%)and Hydrangea longipes(21.12%).Synthesis of relative feed value index and grey relational grade,P.molle,H.longipes and Tetrastigma obtectum were ranked the top three nutritional fodders.There was a significant difference between 21 species on their in vitro digestibility and the most highly digestible fodder species was Elatostema hookerianum.Linear model analysis on relationship between frequency of citation of 21 wild forage plants by local farmers and their nutrient composition showed that the frequency was significantly positively correlated with the nutritional value of the feed(R2?0.28,P<0.05).We concluded that these species have high nutritional values to improve mithun production in integrated crop-livestock systems.Fodder species or mixtures of species with useful nutritional characters could be cultivated to improve livestock productivity,habitat conservation including that of mithun and wild forage resource management. | Yanfei Geng Sailesh Ranjitkar Qiaoshun Yan Zhijun He Baqi Su Shengtao Gao Junli Niu Dengpan Bu Jianchu Xu | 2020 | Plant Diversity2020，42，6： | 2 |
| 15 | Impact of thermal time shift on wheat phenology and yield under warming climate in the Huang-Huai-Hai Plain, China显示文摘 | Dengpan XIAO Yongqing QI Zhiqiang LI Rende WANG Juana P. MOIWO Fengshan LIU | 2017 | Frontiers of Earth Science2017，11，1： | 2 |
| 16 | Impacts of climate warming and crop management on maize phenology in northern China显示文摘Climate warming has and will continue to exert a significantly impact on crop phenology in the past and coming decades.Combining observed data of phenology and a crop growth model provides a good approach for quantitating the effects of climate warming and crop management on crop phenology.The purpose of this study is to determine the impacts of temperature change, sowing date(SD) adjustment and cultivar shift on maize phenology in northern China during 1981–2010.Results indicated that climate warming caused anthesis date(AD) and maturity date(MD) of maize to advance by 0.2-5.5 and 0.6-11.1 d/10 a, respectively.Due to climate-driven changes in maize phenology, three growth periods of maize, i.e., vegetative growth period(VGP;from sowing to anthesis), reproductive growth period(RGP;from anthesis to maturity) and whole growth period(WGP;from sowing to maturity) shortened by 0.2-5.5, 0.4-5.6 and 0.6-11.1 d/10 a, respectively.With SD adjustment(i.e., SD advancement), AD and MD occurred early by 0.5-2.6 and 0.1-3.4 d/10 a, respectively.SD adjustment caused duration of VGP of maize to prolong.However, duration of RGP slightly shortened by 0.1-1.3 d/10 a.Furthermore, due to cultivar shift, MD of maize significantly delayed by 4.9-12.2 d/10 a.Durations of VGP, RGP and WGP of maize prolonged by 0.2-4.1, 1.6-8.4 and 4.3-11.8 d/10 a, respectively.In conclusion, our results indicated that cultivar shift, to some extent, could mitigate the negative impact of climate warming on maize phenology. | XIAO Dengpan ZHAO Yanxi BAI Huizi HU Yukun CAO Jiansheng | 2019 | Journal of Arid Land2019，11，6： | 2 |
| 17 | Design and optimization of an integrated MEMS gas chamber with high transmissivity显示文摘Non-Dispersive InfraRed(NDIR)gas sensor is widely used for gas detection in collieries and the gas chemical industry,etc.The performance of the NDIR gas sensor depends on the volume,optical length and transmittance of the gas chamber.However,the existing gas sensor products have problems of large volume,high cost and incapable of integration,which need to develop towards the miniaturized sensor.This paper first presents the theoretical background of the NDIR gas sensor and the novel structure of a fully integrated infrared gas sensor and its micro-machined gas chamber structure.Then,the light structure and the gas flow of the gas chamber are optimized on Tracepro software and Ansys workbench,respectively,and the technological process for preparing the Micro-Electro-Mechanical System(MEMS)gas chamber is designed.Finally,we produce a gas chamber with a small volume and good transmissivity,which would be the most important part of producing the miniaturized NDIR gas sensor. | Yang Jing Cheng Yuhua Yuan Yupeng Li Xiaofei Zhang Zuwei Xu Ming Wang Dengpan Mu Jiangdong Mei Yong Zhang Yuzhe | 2021 | Digital Communications and Networks2021，7，1： | 2 |
| 18 | A fast re- sponse temperature sensor based on fiber Bragg grating显示文摘 | ZHANG Dengpan WANG JIn WANG Yongiie | 2014 | Meas- urement science and technology2014，25，07： | 1 |
| 19 | In vitro culture and characterization of a mammary epithelial cell line from Chinese Holstein dairy eow显示文摘 | HU Han WANG Jiaqi BU Dengpan | 2009 | PLoS One2009，4，11： | 1 |
| 20 | Community Structure Dynamics of the Hermatypic Corals on Luhuitou Fringing Reef,Hainan,China.I.Species Composition and Abundance显示文摘The existing hermatypic coral community is composed of localities in different successional ages.Data sets were selected from original sampling data to deduce the trajectory of community structure in this and subsequent papers.Patterns of species composition and abundance distribution during community succession in the scope of different habitats were described in this paper.It is found that the effect of succession on community structure is closely correlated with the environmental conditions.Each coral assemblage in different habitat has its own distinguishing temporal pattern of species composition and abundance distribution. | YU DENGPAN ZOU RENLINSouth China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301 | 1996 | 生物多样性1996，4，B10： | 1 |
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