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Accuracy comparison of dry matter intake prediction models evaluated by a feeding trial of lactating dairy cows fed two total mixed rations with different forage source

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Journal of Integrative Agriculture 2017年第4期16卷 921-929页

作者： PAN Xiao-hua YANG Liang Yves Beckers XIONG Ben-hai jiang lin-shu State Key Laboratory of Animal Nutrition Institute of Animal SciencesChinese Academy of Agricultural SciencesBeijing 100193P.R.China University of Liege Gembloux Agro-Bio TechPrecision Livestock and NutritionB-5030 GemblouxBelgium Beijing Key Laboratory for Dairy Cow Nutrition Beijing University of AgricultureBeijing 102206P.R.China

Dry matter intake （DMI） prediction models of NRC （2001）, Fox et aL （2004） and Fuentes-Pila et aL （2003） were targeted in the present study, and the objective was to evaluate their prediction accuracy with feeding trial data of 32 lactating Holstein cows fed two total mixed rations with different forage source. Thirty-two cows were randomly assigned to one of two total mixed ration groups： a ration containing a mixed forage （MF） of 3.7% Chinese wildrye, 28.4% alfalfa hay and 26.5% corn silage diet and another ration containing 33.8% corn stover （CS） as unique forage source. The actual DMI was greater in MF group than in CS group （P=0.064）. The NRC model to predict DMI resulted in the lowest root mean square prediction error for both MF and CS groups （1.09 kg d-1 vs. 1.28 kg d-1） and the highest accuracy and precision based on concordance correlation coefficient for both MF and CS diet （0.89 vs. 0.87）. Except the NRC model, the other two models presented mean and linear biases in both MF and CS diets when prediction residuals were plotted against predicted DMI values （P〈0.001）. The DMI variation in MF was caused by week of lactation （55.6%）, milk yield （13.9%）, milk fat percentage （7.1%） and dietary neutral detergent fiber （13.3%）, while the variation in CS was caused by week of lactation （50.9%）, live body weight （28.2%）, milk yield （8.4%）, milk fat percentage （5.2%） and dietary neutral detergent fibre （3.8%）. In a brief, the NRC model to predict DMI is comparatively acceptable for lactating dairy cows fed two total mixed rations with different forage source.

关键词： dairy cows dry matter intake model comparison mixed forage corn stover

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Genetic Dissection of Net Effects Between Yield and Its Components in Sea Island Cotton (Gossypium barbadense L.)

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Agricultural Sciences in China 2008年第9期7卷 1052-1060页

作者： YE Zi-hong MEI Yong-jun ZOU Ke-qin FU Xian-shu jiang lin-shu College of Life Sciences China Jiliang University Hangzhou 310018 P.R.China College of Plant Science and Technology Tarim University Alar 843300 P.R.China Department of Animal Science and Technology Beijing University of Agriculture Beijing 102206 P.R.China

The number of bolls, individual boll weight, and lint percentage are three important yield components of lint yield of cotton. In the present study, nine parents, twenty F1, and twenty F2 crosses of intraspecific hybrids of sea island cotton （Gossypium barbadense L.） were grown at Tarim University, Alar, Xinjiang, China, in 2000 and 2001. lint yield and its three component traits were measured and analyzed by an extended conditional mixed linear model approach. lint percentage made the largest contribution to additive, additive x environment, and dominance x environment variations for lint yield. The contribution ratios of number of bolls, individual boll weight, and combined contribution of these two traits to additive x environment and dominance x environment variations for lint yield were not statistically significant. lint yield of different parents could be affected differently by lint percentage. lint yield of some parents was closely correlated with lint percentage, whereas for other parents, the behavior of individual boll weight and number of bolls played much more important roles on lint yield than that of lint percentage. It was shown by the conditional and conventional predicted additive x environment interaction effects of parents that the environment condition could influence different parents with varied effects.

关键词： yield yield components Gossypium barbadense L. conditional analysis

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Impact of Antiretroviral Therapy on the Spread of Human Immunodeficiency Virus in Chaoyang District, Beijing, China： Using the Asian Epidemic Model

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Chinese Medical Journal 2017年第1期130卷 32-38页

作者： Li-Li Tao Min Liu shu-Ming Li Jue Liu shu-lin jiang Li-Juan Wang Feng-Ji Luo Ning Wang Department of Epidemiology and Biostatistics School of Public Health Peking University Beijing 100191 China Department of STD and AIDS Prevention and Control Beijing Chaoyang District Centre for Disease Control and Prevention Beijing 100021 China National Center for AIDS/STD Control and Prevention Chinese Center for Disease Control and Prevention Beijing 102206 China

Background： Successful antiretroviral therapy （ART） has been demonstrated to be effective in reducing the infectivity of human immunodeficiency virus （HIV）. We conducted a study to predict the potential effect of ART on the spread of HIV in Chaoyang District, Beijing, China, using the Asian Epidemic Model （AEM）. Methods： The AEM baseline workbook was used to determine the current infection status and to project the future spread of HIV under current conditions. We changed the input on the ART coverage from 2014 to 2025 and also modified the treatment eligibility in the AEM intervention workbook, in order to allow for analysis of the projected downstream impact of ART. Results： By gradually increasing the ART coverage rate from 29.7% （rate of 2013） to 40.0%, 50.0%, 60.0%, 70.0%, 80.0%, and 90.0% （at CD4＋ ≤350 cells/μl）, and by changing the dates of coverage from 2014 to 2020, the number of new infections showed a cumulative decline of 0.60%, 1.59%, 2.94%, 5.33%, 9.32%, and 14.98%, respectively. After 2020, the projected rates of infection rebounded slightly, so with the exception of the years with very high coverage （90.0%）, new infections continued to decrease. When we changed the initial threshold of therapy to CD4＋ cell counts ≤500 cells/μl, new infections decreased 6.00%, 11.64%, 15.92%, 21.11%, 26.92%, 33.05%, and 38.75%, respectively, under varying ART coverages. Conclusion： Our study demonstrates that the early initiation of ART for people living with HIV/acquired immune deficiency syndrome （AIDS） has a positive effect in slowing the spread of HIV.

关键词： Antiretroviral Therapy Asian Epidemic Model Human Immunodeficiency Virus Impact Transmission

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Effects of different molecular weights of chitosan on methane production and bacterial community structure in vitro

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Journal of Integrative Agriculture 2020年第6期19卷 1644-1655页

作者： TONG Jin-jin ZHANG Hua WANG Jia LIU Yun MAO Sheng-yong XIONG Ben-hai jiang linshu Beijing Key Laboratory for Dairy Cow Nutrition Beijing University of AgricultureBeijing 102206P.R.China Beijing Bei Nong Enterprise Management Co. Ltd.Beijing 102206P.R.China College of Veterinary Medicine Northeast Agricultural UniversityHarbin 150030P.R.China College of Animal Science and Technology Nanjing Agricultural UniversityNanjing 210095P.R.China State Key Laboratory of Animal Nutrition Institute of Animal SciencesChinese Academy of Agricultural SciencesBeijing 100193P.R.China

As a new feed additive,chitosan has been shown in recent years to have a certain role in reducing methane emissions from the gastrointestinal tracts of ***,the effects of chitosan with different molecular weights on rumen ferme ntation,methane production and bacterial comm unity structure are not yet clear.A basal diet without chitosa n served as the control(CTL),and the treatment diets were supplemented with chitosan with different molecular weights:1000(1K),3000(3K),5000(5K),50000(5W)and 200000(20W)dry matter(DM).Six fermentation units per treatment were *** chromatography was used to measure the co nee ntrations of metha ne,H2 and volatile fatty acids(VFAs).The bacterial 16S rRNA genes were sequeneed with an Illumina MiSeq platform and analysed to reveal the relative abunda nces of bacterial community *** results showed that the propi onate proporti on was sign ifica ntly in creased by the addition of chitosan with different molecular weights(P<0.05),while methane production and the acetate proportion were significantly decreased(P<0.05).The relative mbundances of Rikenellaceae_RC9_gut_group and Prevotellaceae_UCG_003 were significa ntly in creased in the 3K chitosa n group compared with the CTL group,whereas the relative abunda nee of Ruminococcaceae_NK4A214_group was significantly decreased(P<0.05).Correlation analyses of the relative abundances of the bacterial genera showed that Prevotella was positively related to propionmte production(Pv0.05).In conclusion,3K chitosan could reduce methane production by replacing fibrolytic bacteria(Firmicutes and Fibrobacteres)with amylolytic bacteria(Bacteroidetes and Proteobacteria)in the bacterial community structure.

关键词： chitosan high-throughput DNA sequencing methane

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Offload Strategy for Edge Computing in Satellite Networks Based on Software Defined Network

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Computers, Materials & Continua 2025年第1期82卷 863-879页

作者： Zhiguo Liu Yuqing Gui lin Wang Yingru jiang Communication and Network Laboratory Dalian UniversityDalian116622China College of Environment and Chemical Engineering Dalian UniversityDalian116622China

Satellite edge computing has garnered significant attention from researchers;however,processing a large volume of tasks within multi-node satellite networks still poses considerable *** sharp increase in user demand for latency-sensitive tasks has inevitably led to offloading bottlenecks and insufficient computational capacity on individual satellite edge servers,making it necessary to implement effective task offloading scheduling to enhance user *** this paper,we propose a priority-based task scheduling strategy based on a Software-Defined Network(SDN)framework for satellite-terrestrial integrated networks,which clarifies the execution order of tasks based on their ***,we apply a Dueling-Double Deep Q-Network(DDQN)algorithm enhanced with prioritized experience replay to derive a computation offloading strategy,improving the experience replay mechanism within the Dueling-DDQN ***,we utilize the Deep Deterministic Policy Gradient(DDPG)algorithm to determine the optimal resource allocation strategy to reduce the processing latency of *** results demonstrate that the proposed d3-DDPG algorithm outperforms other approaches,effectively reducing task processing latency and thus improving user experience and system efficiency.

关键词： Satellite network edge computing task scheduling computing offloading

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微小RNA介导的基因沉默与神经退行性疾病

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中华老年医学杂志 2011年第6期30卷 519-522页

作者：张丽姝姜树林北京交通大学理学院生命科学与生物工程研究院 100044 北京市朝阳区疾病预防控制中心

微小RNA（microRNA，miRNA）是一类内源性的22个核苷酸左右的非蛋白编码单链短序列RNA，介导同源序列依赖的基因沉默。目前，miRNA数据库miRBase（16．0版）已收录了人类miRNA1048个。miRNA及其靶基因构建了细胞内全方位多层次的基因表... 详细信息

微小RNA（microRNA，miRNA）是一类内源性的22个核苷酸左右的非蛋白编码单链短序列RNA，介导同源序列依赖的基因沉默。目前，miRNA数据库miRBase（16．0版）已收录了人类miRNA1048个。miRNA及其靶基因构建了细胞内全方位多层次的基因表达调控网络系统，参与众多生命活动的调节并与人类疾病密切相关。miRNA的功能失常在多种神经退行性疾病的发生发展中均具有重要作用。

关键词：神经退行性疾病微小RNA 基因沉默介导 miRNA 调控网络系统同源序列人类疾病

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Wafer‑Scale Vertical 1D GaN Nanorods/2D MoS_(2)/PEDOT:PSS for Piezophototronic Effect‑Enhanced Self‑Powered Flexible Photodetectors

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Nano-Micro Letters 2025年第3期17卷 102-116页

作者： Xin Tang Hongsheng jiang Zhengliang lin Xuan Wang Wenliang Wang Guoqiang Li State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640People’s Republic of China Department of Electronic Materials School of Materials Science and EngineeringSouth China University of TechnologyGuangzhou 510640People’s Republic of China

van der Waals(vdW)heterostructures constructed by lowdimensional(0D,1D,and 2D)materials are emerging as one of the most appealing systems in next-generation flexible ***,hand-stacked vdW-type photodetectors are not compatible with large-areaarray fabrication and show unimpressive performance in self-powered ***,vertical 1D GaN nanorods arrays(NRAs)/2D MoS_(2)/PEDOT:PSS in wafer scale have been proposed for self-powered flexible photodetectors arrays *** as-integrated device without external bias under weak UV illumination exhibits a competitive responsivity of 1.47 A W^(−1)and a high detectivity of 1.2×10^(11)Jones,as well as a fast response speed of 54/71μs,thanks to the strong light absorption of GaN NRAs and the efficient photogenerated carrier separation in type-II ***,the strain-tunable photodetection performances of device have been ***,the device at−0.78%strain and zero bias reveals a significantly enhanced photoresponse with a responsivity of 2.47 A W^(−1),a detectivity of 2.6×10^(11)Jones,and response times of 40/45μs,which are superior to the state-of-the-art self-powered flexible *** work presents a valuable avenue to prepare tunable vdWs heterostructures for self-powered flexible photodetection,which performs well in flexible sensors.

关键词： Vertical nanorod arrays van der Waals heterostructure Piezophototronic effect Self-powered photodetection Flexible sensors

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循证医学证据在心脏外科中的应用

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中国循证医学杂志 2005年第6期5卷 495-496页

作者：李杰蒋树林哈尔滨医科大学附属第二医院心外科哈尔滨150086

心脏外科作为一门年轻的学科,在近代有了极快的发展,但仍然面临许多问题和争议。循证医学的出现给了心脏外科的发展以新的思维,循证医学强调最佳证据,并结合医师的临床经验做出最佳的判断。发表于Cochrane图书馆2004年第3期的4篇系统评... 详细信息

心脏外科作为一门年轻的学科,在近代有了极快的发展,但仍然面临许多问题和争议。循证医学的出现给了心脏外科的发展以新的思维,循证医学强调最佳证据,并结合医师的临床经验做出最佳的判断。发表于Cochrane图书馆2004年第3期的4篇系统评价在心脏外科的不同领域很好地诠释了循证医学的思想在解决心脏外科实际问题中的重要作用。

关键词：循证医学系统评价心脏外科

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Multi-model ensemble learning for battery state-of-health estimation:Recent advances and perspectives

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Journal of Energy Chemistry 2025年第1期100卷 739-759页

作者： Chuanping lin Jun Xu Delong jiang Jiayang Hou Ying Liang Zhongyue Zou Xuesong Mei State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Shaanxi Key Laboratory of Intelligent Robots School of Mechanical Engineering Xi'an Jiaotong University Department of Electrical Engineering and Automation Luoyang Institute of Science and Technology School of Mechanical Engineering Hangzhou Dianzi University

The burgeoning market for lithium-ion batteries has stimulated a growing need for more reliable battery performance monitoring. Accurate state-of-health(SOH) estimation is critical for ensuring battery operational performance. Despite numerous data-driven methods reported in existing research for battery SOH estimation, these methods often exhibit inconsistent performance across different application scenarios. To address this issue and overcome the performance limitations of individual data-driven models,integrating multiple models for SOH estimation has received considerable attention. Ensemble learning(EL) typically leverages the strengths of multiple base models to achieve more robust and accurate outputs. However, the lack of a clear review of current research hinders the further development of ensemble methods in SOH estimation. Therefore, this paper comprehensively reviews multi-model ensemble learning methods for battery SOH estimation. First, existing ensemble methods are systematically categorized into 6 classes based on their combination strategies. Different realizations and underlying connections are meticulously analyzed for each category of EL methods, highlighting distinctions, innovations, and typical applications. Subsequently, these ensemble methods are comprehensively compared in terms of base models, combination strategies, and publication trends. Evaluations across 6 dimensions underscore the outstanding performance of stacking-based ensemble methods. Following this, these ensemble methods are further inspected from the perspectives of weighted ensemble and diversity, aiming to inspire potential approaches for enhancing ensemble performance. Moreover, addressing challenges such as base model selection, measuring model robustness and uncertainty, and interpretability of ensemble models in practical applications is emphasized. Finally, future research prospects are outlined, specifically noting that deep learning ensemble is poised to advance ens

关键词： Contrastive Learning

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CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： Jin-Peng Wang Guo-Cui Mao Hui-lin jiang Bao-Xia Dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： CO 2 methanation Metal hydride Ni catalysts Carbonate Metal-carbonate interface

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