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Growth performance,serum parameters,inflammatory responses,intestinal morphology and microbiota of weaned piglets fed 18%crude protein diets with different ratios of standardized ileal digestible isoleucine to lysine

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Animal Nutrition 2024年第1期16卷 313-325页

作者： Jian Wang Sujie Liu Jiayu Ma xiaoli dong Shenfei Long Xiangshu Piao State Key Laboratory of Animal Nutrition College of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China Beijing Jingwa Agricultural Science and Technology Innovation Center Beijing101206China CJ International Trading Co. LtdShanghai 201107China

The present study was to explore the Ile requirement of piglets fed 18%crude protein(CP)*** hundred and fifty 28-day-old Duroc×Landrace×Yorkshire piglets(8.37±1.92 kg)were randomly divided into 5 dietary treatments(10 piglets per replicate,5 barrows and 5 gilts per replicate)with 45%,50%,55%,60%,65%standardized ileal digestible(SID)Ile-to-Lys ratios,and the SID Lys was formulated to1.19%.The experimental design consisted of two phases(d 1 to 14 and d 15 to 28).Results showed that average daily gain(ADG)had a tendency to quadratically increase as the SID Ile-to-Lys ratio increased(P=0.09),and the optimum SID Ile-to-Lys ratios required to maximize ADG were 48.33%and 54.63%for broken-line linear model and quadratic polynomial model,*** SID Ile-to-Lys ratios had no significant effects on average daily feed intake and gain-to-feed *** matter(P<0.01),CP(P=0.01),ether extract(P=0.04),gross energy(P<0.01)and organic matter(P<0.01)digestibility increased *** total cholesterol levels decreased linearly(P=0.01)and quadratically(P<0.01);aspartate aminotransferase(P<0.01),interleukin-1β(P=0.01),and tumor necrosis factor-a(P<0.01)levels decreased quadratically;immunoglobulin G(P=0.03)and immunoglobulin M(P=0.01)concentrations increased *** Ser levels decreased linearly(P<0.01)and quadratically(P=0.01);Glu(P=0.02),Arg(P=0.05),and Thr(P=0.03)levels decreased quadratically;Gly(P<0.01)and Leu(P=0.01)levels decreased linearly;Ile(P<0.01)concentration increased *** villus height(P<0.01)and villus height to crypt depth ratio(P<0.01)increased *** deficiency or excess of Ile decreased short chain fatty acid-producing bacteria abundance and increased pathogenic bacteria ***,taking ADG as the effect index,the optimum SID Ile-to-Lys ratios of piglets offered 18%CP diets were 48.33%and 54.63%based on two different statistical models,respectively,and the deficiency or excess of lle negative

关键词： Weaned piglet Growth performance Intestinal health Isoleucine Reduced crude protein diet

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Learning to represent 2D human face with mathematical model

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CAAI Transactions on Intelligence Technology 2024年第1期9卷 54-68页

作者： Liping Zhang Weijun Li Linjun Sun Lina Yu Xin Ning xiaoli dong AnnLab Institute of SemiconductorsChinese Academy of SciencesBeijingChina Center of Materials Science and Optoelectronics Engineering School of Integrated CircuitsUniversity of Chinese Academy of SciencesBeijingChina Beijing Key Laboratory of Semiconductor Neural Network Intelligent Sensing and Computing Technology BeijingChina

How to represent a human face pattern?While it is presented in a continuous way in human visual system,computers often store and process it in a discrete manner with 2D arrays of *** authors attempt to learn a continuous surface representation for face image with explicit ***,an explicit model(EmFace)for human face representation is pro-posed in the form of a finite sum of mathematical terms,where each term is an analytic function ***,to estimate the unknown parameters of EmFace,a novel neural network,EmNet,is designed with an encoder-decoder structure and trained from massive face images,where the encoder is defined by a deep convolutional neural network and the decoder is an explicit mathematical expression of *** authors demonstrate that our EmFace represents face image more accurate than the comparison method,with an average mean square error of 0.000888,0.000936,0.000953 on LFW,IARPA Janus Benchmark-B,and IJB-C *** results show that,EmFace has a higher representation performance on faces with various expressions,postures,and other ***,EmFace achieves reasonable performance on several face image processing tasks,including face image restoration,denoising,and transformation.

关键词： artificial neural networks face analysis image processing mathematics computing

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Revisiting the sodium-ion storage capability of hard carbon in carbonate-based electrolytes via a sodium-metal-free protocol

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Science China Chemistry 2024年第7期67卷 2240-2247页

作者： Gaopan Liu Yanbing Mo Jiawei Chen Yu Peng Xiao Zhu Fei Wang xiaoli dong Yongyao Xia Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New EnergyLaboratory of Advanced MaterialsFudan UniversityShanghai 200438China

Common evaluation methodology of sodium(Na)-containing two-electrode or three-electrode configurations overlooks the interference from highly reactive Na metal,leading to the underestimation or inconsistent performance of low-potential hard carbon(HC)***,the trap of Na metal was systematically investigated with or without applied current,uncovering its inadequacy as the reference or counter electrode in different configurations.A Na-metal-free three-electrode protocol is proposed for evaluating the actual Na^(+)-storage capability of the typical low-potential HC *** avoiding Na crosstalk and precisely controlling the working electrode's potential,the actual electrochemical performance of HC in the carbonate esterbased electrolyte can be recognized with high capacity of 222 mAh g^(-1)at 2 C and 113 mAh g^(-1)at 5 C,correcting the misunderstanding of the inferior performance of HC in coin-type half cells(68%and 50%undervaluation at 2 C and 5 C,respectively).The advanced protocol is expected to reduce misunderstandings or underestimation due to evaluation methods and to guide the development of high-performance battery materials.

关键词： highly reactive sodium potential drift carbonate ester sodium-metal-free protocol sodium storage capability

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Efficacy and safety of modified medium-chain triglyceride ketogenic diet in patients with drug-resistant epilepsy

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Acta Epileptologica 2024年第1期7卷 44-52页

作者： Hua Li Yao Wang Jing Guo Peiqi Zhang Zheng Xu Kai Peng xiaoli dong Liming Zhao Department of Neurology Guangdong Sanjiu Brain HospitalGuangzhou510510China

Background Medium-chain triglyceride ketogenic diet(MCTKD)is previously less commonly used in *** study was aimed to assess the efficacy and safety of the modified MCTKD in the treatment of drug-resistant epilepsy in Chinese *** Patients with drug-resistant epilepsy were enrolled to receive treatment with modified MCTKD in Guangdong Sanjiu Brain Hospital during December 2020 and September *** modified MCTKD contained fat that provided 50–70%of the total energy,as well as proteins and carbohydrates that provided 20–30%and 20%of energy,*** fat component was composed of 20–30%medium-chain triglycerides(MCTs)and 30–40%long-chain *** efficacy and safety of the diet were assessed at 1,3 and 6 *** A total of 123 patients aged 2.5 to 65 years,were included in this *** response rates at 1,3 and 6 months were 49.6%,43.1%,and 30.9%,*** seizure freedom rates at 1,3 and 6 months were 12.2%,10.6%,and 6.5%,*** retention rates at 1,3 and 6 months were 98.4%,65.0%and 33.3%*** effects occurred in 21.14%of patients,which were predominantly gastrointestinal symptoms such as abdominal pain,diarrhea,vomiting,and constipation,and most of them resolved after dietary adjustments.A total of 82 patients(66.7%)discontinued the treatment with the reason of refusing to eat(8.1%),poor efficacy(35.0%),poor compliance(4.9%),and inability to follow-up(9.8%).Only 4 patients(3.3%)withdrew the diet due to side *** The modified MCTKD with MCTs providing 20–30%of energy has a good safety in patients with drug-resistant epilepsy,but its effectiveness needs to be *** modifications of MCTKD with an optimal energy ratio are required to achieve a better efficacy and safety.

关键词： Medium-chain triglyceride ketogenic diet Ketogenic diet Drug-resistant epilepsy Efficacy Safety

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运用读后续写策略提升习作词语使用适切性研究

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科教导刊 2024年第12期 65-67页

作者：董晓丽西安翻译学院教育学院陕西西安710105

小学生语文习作中存在错别字、词语使用不当、词语乱用和缺少句子成分等普遍现象。文章提出通过读后续写来提升小学生习作中词语使用的适切性。学生进行续写时,有前文所构建的语境和可模仿的语言样板为依托,学生将创作与模仿有机融合,... 详细信息

小学生语文习作中存在错别字、词语使用不当、词语乱用和缺少句子成分等普遍现象。文章提出通过读后续写来提升小学生习作中词语使用的适切性。学生进行续写时,有前文所构建的语境和可模仿的语言样板为依托,学生将创作与模仿有机融合,使得前文的阅读和后续的写作形成协同效应,从而使习作中的词语使用更加准确、流畅。教师在习作教学中要有效使用续写带来的协同效应,引导学生根据语境将语言的模仿和使用有机结合,帮助学生在语境中有效积累词汇量,提升词语使用的适切性。

关键词：小学语文习作词语使用适切性读后续写

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基于有机电极材料的低温电池研究进展

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储能科学与技术 2024年第7期13卷 2259-2269页

作者：王浩天王永刚董晓丽复旦大学上海200433

基于无机嵌入化合物电极材料的锂离子电池在低温(<-20℃)下会失去大部分容量,限制了其在电动汽车、航空航天和国防等关键领域的应用。与传统的无机嵌入化合物电极材料相比,具有氧化还原活性基团的有机电极材料通常表现出较快的电极反应... 详细信息

基于无机嵌入化合物电极材料的锂离子电池在低温(<-20℃)下会失去大部分容量,限制了其在电动汽车、航空航天和国防等关键领域的应用。与传统的无机嵌入化合物电极材料相比,具有氧化还原活性基团的有机电极材料通常表现出较快的电极反应动力学、较强的载流子适应性和优异的低温性能。同时,有机电极材料具有结构可设计性强、资源丰富、环境友好等优点,近年来在二次电池研究领域中受到了广泛关注。本文主要介绍了基于有机电极材料的低温电池体系的研究进展,根据不同氧化还原反应机理对有机电极材料进行了分类,阐述了有机电极材料的储能机制及其特点,结合近几年国内外研究介绍了有机物金属(离子)、非金属离子电池,有机物双离子电池等几类典型的低温有机物电池体系,分析了不同工作机理的有机电极材料在低温下的电化学行为,最后总结了有机电极材料在低温电池中的应用前景和挑战,旨在为未来低温有机物电池中有机电极材料的设计及其与电解液的适配性提供指导。

关键词：有机电极材料储能机制低温电池双离子电池

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Two-fold symmetry of the in-plane resistance in kagome superconductor Cs(V_(1-x)Ta_(x))_(3)Sb_(5) with enhanced superconductivity

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Chinese Physics B 2024年第7期33卷 9-14页

作者：赵振王汝文张宇航祝轲余维琪韩烨超刘家利胡国静郭辉林晓董晓莉陈辉杨海涛高鸿钧 Beijing National Center for Condensed Matter Physics and Institute of Physics Chinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Songshan Lake Materials Laboratory Dongguan 523808China

The kagome superconductor CsV_(3)Sb_(5) has attracted widespread attention due to its rich correlated electron states including superconductivity, charge density wave(CDW), nematicity, and pair density wave. Notably, the modulation of the intertwined electronic orders by the chemical doping is significant to illuminate the cooperation/competition between multiple phases in kagome superconductors. In this study, we have synthesized a series of tantalum-substituted Cs(V_(1-x)Ta_(x))_(3)Sb_(5) by a modified self-flux method. Electrical transport measurements reveal that CDW is suppressed gradually and becomes undetectable as the doping content of x is over 0.07. Concurrently, the superconductivity is enhanced monotonically from T_(c) ~ 2.8 K at x = 0 to 5.2 K at x = 0.12. Intriguingly, in the absence of CDW, Cs(V_(1-x)Ta_(x))_(3)Sb_(5)(x = 0.12) crystals exhibit a pronounced two-fold symmetry of the in-plane angular-dependent magnetoresistance(AMR) in the superconducting state, indicating the anisotropic superconducting properties in the Cs(V_(1-x)Ta_(x))_(3)Sb_(5). Our findings demonstrate that Cs(V_(1-x)Ta_(x))_(3)Sb_(5) with the non-trivial band topology is an excellent platform to explore the superconductivity mechanism and intertwined electronic orders in quantum materials.

关键词： kagome superconductor charge density wave rotation symmetry breaking

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鼻内镜修正性手术联合中鼻甲部分黏膜切除治疗难治性鼻-鼻窦炎的临床效果

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临床医学工程 2024年第6期31卷 649-650页

作者：段明志董晓丽云南省保山市人民医院耳鼻咽喉头颈外科云南保山678000 云南省保山市人民医院肿瘤科云南保山678000

目的探讨鼻内镜修正性手术联合中鼻甲部分黏膜切除治疗难治性鼻-鼻窦炎的临床效果。方法100例难治性鼻-鼻窦炎患者随机分为两组,对照组行鼻内镜修正性手术治疗,研究组行鼻内镜修正性手术联合中鼻甲部分黏膜切除治疗,比较两组的临床效果... 详细信息

目的探讨鼻内镜修正性手术联合中鼻甲部分黏膜切除治疗难治性鼻-鼻窦炎的临床效果。方法100例难治性鼻-鼻窦炎患者随机分为两组,对照组行鼻内镜修正性手术治疗,研究组行鼻内镜修正性手术联合中鼻甲部分黏膜切除治疗,比较两组的临床效果、鼻腔功能、并发症以及复发情况。结果研究组的治疗总有效率高于对照组,复发率低于对照组(P<0.05)。术后6个月,研究组的DCAN小于对照组,NMCA、NCV均大于对照组(P<0.05)。结论鼻内镜修正性手术联合中鼻甲部分黏膜切除治疗难治性鼻-鼻窦炎的临床效果显著,可改善患者的鼻腔功能,降低复发风险。

关键词：难治性鼻-鼻窦炎鼻内镜修正性手术中鼻甲部分黏膜切除术

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一种高承载阻力撑杆多工位柔性装配装置及使用方法

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机械工程师 2024年第7期 127-129,134页

作者：董晓莉白亚玲中航飞机起落架有限责任公司陕西汉中723200

为了避免装配过程中重复定位和迂回运送,介绍了一种高承载阻力撑杆多工位柔性装配装置及使用方法,装置安装架上具有竖直安装工位和水平安装工位,竖直安装工位在外力作用下沿导轨滑动后可转化成水平安装工位,多个工位的装配集中一地,可... 详细信息

为了避免装配过程中重复定位和迂回运送,介绍了一种高承载阻力撑杆多工位柔性装配装置及使用方法,装置安装架上具有竖直安装工位和水平安装工位,竖直安装工位在外力作用下沿导轨滑动后可转化成水平安装工位,多个工位的装配集中一地,可将装配夹具的数量减到最少,提高装配效率。

关键词：阻力撑杆多工位迂回

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消费者预制菜购买意愿及影响因素研究——以西安市为例

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北方经贸 2024年第7期 59-63页

作者：雷鸣东晓莉黄蓉宝鸡文理学院经济管理学院陕西宝鸡721000

近年来,在居民生活水平显著提高、“懒宅经济”盛行、新冠疫情、烹饪便捷性需求逐年提升等多因素影响下,国内预制菜行业迅速发展。本文运用数理统计方法,对西安市居民的预制菜购买意愿及影响因素进行调查分析。结果表明,西安市居民对预... 详细信息

近年来,在居民生活水平显著提高、“懒宅经济”盛行、新冠疫情、烹饪便捷性需求逐年提升等多因素影响下,国内预制菜行业迅速发展。本文运用数理统计方法,对西安市居民的预制菜购买意愿及影响因素进行调查分析。结果表明,西安市居民对预制菜的购买意愿较高,虽然,对于产品质量问题存在担忧,但同时也看重预制菜的便捷。对此,本研究提出以下建议:政府要充分发挥主导作用,健全相关法律法规,加快冷链物流体系建设;预制菜生产企业要加强产品的宣传和推广,增强品牌意识,提高产品的质量和安全性,促进预制菜市场的健康发展。

关键词：预制菜购买意愿主成分分析(PCA) 二元logistic回归模型

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