检索结果-南通市图书馆

胸腔镜下经剑突肋缘下入路与经肋间入路纵隔肿物切除术近期疗效的比较

在线全文

学校读者我要写书评

暂无评论

河北医学 2024年第4期30卷 603-608页

作者：梁冠标阳诺李昌钤李泳朋广西医科大学第一附属医院心胸外科广西南宁530022

目的:对比分析胸腔镜下经剑突肋缘下入路与经肋间入路纵隔肿物切除术近期疗效。方法:选取广西医科大学第一附属医院心胸外科2019年1月至2022年1月接受胸腔镜下经剑突肋缘下或经肋间入路行纵隔肿物切除术患者157例,按照手术入路不同分为... 详细信息

目的:对比分析胸腔镜下经剑突肋缘下入路与经肋间入路纵隔肿物切除术近期疗效。方法:选取广西医科大学第一附属医院心胸外科2019年1月至2022年1月接受胸腔镜下经剑突肋缘下或经肋间入路行纵隔肿物切除术患者157例,按照手术入路不同分为经剑突组(n=56)或经肋间组(n=102),经倾向性评分匹配后,剑突组与肋间组各纳入52例患者。比较两组手术相关指标(术后胸腔引流量、术中出血量、引流管留置时间、手术时间、卧床时间、自主按压镇痛泵次数及住院费用)、术后并发症发生率、疼痛程度,术前、术后1d、3d及5d采用电化学发光法、酶联免疫吸附法分别测定血清肌红蛋白(Mb)、神经生长因子(NGF)、肌酸磷酸激酶(CPK)、前列腺素E2(PGE2)水平。结果:经剑突组术后引流管留置时间(2.37±1.05)d、卧床时间(1.37±0.65)d、住院时间(6.07±1.82)d、术中出血量(72.26±9.41)mL、胸腔引流量(248.74±80.41)mL、自主按压镇痛泵次数(3.72±0.98)次、住院费用(3.10±0.84)万元均较经肋间组(3.02±1.31)d、(1.92±0.70)d、(7.31±2.13)d、(85.33±12.69)mL、(325.96±95.22)mL、(8.41±2.17)次,(3.76±1.22)万元少(t=2.792、4.152、3.192、5.966、4.468、14.204、3.213,P均<0.05);术后1d、3d及5d,经剑突组Mb、CPK、NGF、PGE2均较经肋间组低(P<0.05);术后1d、7d及1个月、3个月,经剑突组疼痛VAS评分均较经肋间组低(P<0.05);经剑突组术后并发症发生率1.92%(1/52)较经肋间组17.31%(9/52)低(χ^(2)=7.081,P<0.05)。结论:相较于胸腔镜下经肋间入路,经剑突肋缘下入路纵隔肿物切除术可明显减轻患者肌肉损伤及疼痛程度,手术安全、可靠,有助于患者术后恢复,且住院费用相对较少。

关键词：纵隔肿物胸腔镜手术剑突肋缘入路肋间入路倾向性匹配

Emerging theory and phenomena in thermal conduction: A selective review

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2022年第11期65卷 2-17页

作者： Jie Chen Jia He Dongkai Pan Xiaotian Wang nuo yang Jiaojiao Zhu Shengyuan A.yang Gang Zhang Center for Phononics and Thermal Energy Science China-EU Joint Lab for NanophononicsMOE Key Laboratory of Advanced Microstructured MaterialsSchool of Physics Science and EngineeringTongji UniversityShanghai 200092China School of Energy and Power Engineering Huazhong University of Science and Technology(HUST)Wuhan 430074China School of Physical Science and Technology Southwest UniversityChongqing 400715China Research Laboratory for Quantum Materials Singapore University of Technology and DesignSingapore 487372Singapore Institute of High Performance Computing Agency for ScienceTechnology and Research(A*STAR)Singapore 138632Singapore

Recently, emerging phonon phenomena have been discovered and rapidly developed, which have become an active hot research topic. In this review article, we present state-of-the-art advances in several fascinating phonon transport phenomena. First, we summarize the recent progress on the wave nature of phonons, including phonon coherence and its effects on thermal conductivity and the topological properties of phonons. Then, we discuss the particle nature of phonons, including the weak coupling of phonons and the high-order phonon anharmonicity. Finally, we present the summary and a brief outlook. This review presents the advanced understanding of some emerging phonon phenomena in solid materials, which provides new opportunities for further advancement in a wide variety of applications.

关键词： phonon transport coherence topological phonon high-order phonon interaction

在线全文

学校读者我要写书评

暂无评论

微生物对食用菌生长发育影响的研究进展

生物技术通报 2024年第5期40卷 13-22页

作者：崔嫚邵改革杨诺林范庆昊张金威田雨郑素月张瑞颖中国农业科学院农业资源与农业区划研究所北方干旱半干旱耕地高效利用全国重点实验室北京100081 河北工程大学园林与生态工程学院邯郸056038 陕西省西安市农业技术推广中心西安710007

食用菌已经成为我国继粮、油、果、蔬后的第五大种植业。食用菌作为一类大型真菌,目前主要采用纯培养技术进行栽培,然而在自然界中食用菌与各种微生物并存,并且在长期的演化中形成了复杂的相互关系,根据其对食用菌的影响,可分为有害微... 详细信息

食用菌已经成为我国继粮、油、果、蔬后的第五大种植业。食用菌作为一类大型真菌,目前主要采用纯培养技术进行栽培,然而在自然界中食用菌与各种微生物并存,并且在长期的演化中形成了复杂的相互关系,根据其对食用菌的影响,可分为有害微生物和有益微生物,常见的有害微生物包括竞争性杂菌和侵染性病原;有益微生物主要包括覆土微生物、伴生菌、生防类微生物等。在农作物生产中,人们根据土壤微生物和根际微生物的营养、促生、抗病等功能,开发出多种微生物肥料和菌剂,有效的推动了作物的优质高产,而食用菌在菌丝际微生物的研究和开发尚未起步。本文对目前关于食用菌和其他微生物之间相互关系的研究进展进行综述,旨在推动相关研究,为下一步食用菌新种类的驯化,以及高产、稳产、优质、高抗、广适和绿色生产提供新的思路。

关键词：食用菌微生物竞争性杂菌侵染性病原伴生菌覆土微生物生防微生物

同方期刊数据库

Oils with different degree of saturation:effects on ileal digestibility of fat and corresponding additivity and bacterial community in growing pigs

在线全文

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2024年第4期15卷 1657-1668页

作者： Lu Wang Yifan Chen Yuansen yang nuo Xiao Changhua Lai State Key Laboratory of Animal Nutrition Ministry of Agriculture and Rural Affairs Feed Industry CentreChina Agricultural UniversityNo.2 Yuanmingyuan West RoadHaidian DistrictBeijing 100193China College of Animal Science and Technology Hebei Agricultural UniversityHebei 071000China

Background Oils are important sources of energy in pig *** combination of oils with different degree of saturation contributes to improve the utilization efficiency of the mixed oils and may reduce the cost of oil *** experiment was conducted to evaluate the effects of oils with different degree of saturation on the fat digestibility and corresponding additivity and bacterial community in growing *** Eighteen crossbred(Duroc×Landrace×Yorkshire)barrows(initial body weight:29.3±2.8 kg)were surgically fitted with a T-cannula in the distal *** experimental diets included a fat-free basal diet and 5 oil-added *** 5 oil-added diets were formulated by adding 6%oil with different ratio of unsaturated to saturated fatty acids(U:S)to the basal *** 5 oils were palm oil(U:S=1.2),canola oil(U:S=12.0),and palm oil and canola oil were mixed in different proportions to prepare a combination of U:S of 2.5,3.5 and 4.5,*** The apparent and standardized ileal digestibility(AID and SID)of fat and fatty acids increased linearly(P<0.05)as the U:S of dietary oils increased except for SID of fat and C18:*** AID and SID of fat and fatty acids differed among the dietary treatments(P<0.05)except for SID of unsaturated fatty acids(UFA)and C18:*** one-slope broken-line analyses for the SID of fat,saturated fatty acids(SFA)and UFA indicated that the breakpoint for U:S of oil was 4.14(R^(2)=0.89,P<0.01),2.91(R^(2)=0.98,P<0.01)and 3.84(R^(2)=0.85,P<0.01),*** determined SID of fat,C18:1,C18:2 and UFA in the mixtures was not different from the calculated SID of fat,C18:1,C18:2 and ***,the determined SID of C16:0,C18:0 and SFA in the mixtures were greater than the calculated SID values(P<0.05).The abundance of Romboutsia and Turicibacter in pigs fed diet containing palm oil was greater than that in rapeseed oil treatment group,and the two bacteria were negatively correlated with SID of C16:0,C18:0 and SFA(P<0.05).

关键词： Additivity Bacterial community Fat and fatty acids Growing pigs Ratio of unsaturated to saturated fatty acids Standardized ileal digestibility

采用非共沸制冷剂的双喷气增焓两级压缩热泵循环研究

在线全文

学校读者我要写书评

暂无评论

制冷与空调 2024年第4期24卷 67-72,79页

作者：杨锘唐运通陈健勇陈颖罗向龙何嘉诚广东工业大学

提出一种采用非共沸制冷剂的双喷气增焓两级压缩热泵循环(DVIC),该循环在普通喷气增焓循环(VIC)的基础上采用分液冷凝技术,并增加一组闪蒸器,减少系统不可逆损失,改善热力性能。采用R290/R1336mzz(Z)非共沸制冷剂,对DVIC进行研究,并与VI... 详细信息

提出一种采用非共沸制冷剂的双喷气增焓两级压缩热泵循环(DVIC),该循环在普通喷气增焓循环(VIC)的基础上采用分液冷凝技术,并增加一组闪蒸器,减少系统不可逆损失,改善热力性能。采用R290/R1336mzz(Z)非共沸制冷剂,对DVIC进行研究,并与VIC进行比较。结果表明:在设定工况下,DVIC比VIC拥有更优的循环性能,系统COP和(火用)效率分别提高5.82%和8.41%,压缩机功耗降低6.39%;在较低蒸发温度或较高冷凝温度的运行工况下,DVIC性能的改善效果更加明显。

关键词：热泵非共沸制冷剂喷气增焓分液冷凝性能系数 (火用)损

同方期刊数据库

An Organic Small Molecule as a Solid Additive in Non-Fullerene Organic Solar Cells with Improved Efficiency and Operational Stability

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2023年第2期41卷 194-201页

作者： Yi-nuo yang Xiao-Ming Li Shi-Jie Wang Xiao-Peng Duan Yun-Hao Cai Xiao-Bo Sun Dong-Hui Wei Wei Ma Yan-Ming Sun School of Chemistry Beihang UniversityBeijing100191China State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an710049China The College of Chemistry and Molecular Engineering Zhengzhou UniversityZhengzhou450001China

The use of additive is an effective approach to optimize the active layer morphology and improve the power conversion efficiency(PCE)of organic solar cells(OSCs).However,residual solvent additives always lead to undesirably compromise the stability of *** this work,an organic small molecule BBT-Cl was designed and used as a novel solid additive to partly replace solvent additive to fabricate highperformance *** synergistic effect of the dual additives on the optical property,morphology and photovoltaic characteristics of the PM6:Y6 based non-fullerene OSCs have been systematically *** introduction of BBT-Cl could effectively enhance the crystallinity of the blend and promote charge extraction and ***,the OSCs processed by the dual additives exhibit a high PCE of 17.73%,which is obviously higher than OSCs with CN additive(16.48%).Meanwhile,BBT-Cl based dual additives treatment has also been successfully introduced into another two non-fullerene OSCs to verify its general ***,20%PCE aging is significantly prolonged from 720 min to 2880 min for the devices proceeded with the dual *** work highlights the great potential of solid additive in the fabrication of efficient OSCs with excellent stability.

关键词： Organic solid additive Morphology Dual additives Organic solar cells Operational stability

A novel non-invasive identification of genome editing mutants from insect exuviae

在线全文

学校读者我要写书评

暂无评论

Insect Science 2022年第1期29卷 21-32页

作者： Xiao-Xiao Wang Jing Li Tong-Xin Wang Yi-nuo yang Hai-Kang Zhang Meng Zhou Le Kang Li-Ya Wei College of Life Sciences Institute of Life Sciences and Green DevelopmentHebei UniversityBaodingHebei Province071002China State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing100101China

With the wide application of genome editing in insects, a simple and efficient identification method is urgently needed to meet the increasing demand for mutation detection. Here, taking migratory locusts as a model system, we developed a non-invasive method to accurately identify genome-edited mutants by using DNA from insect exuviae. We compared the quantity and quality of genomic DNA from exuviae in five instar hoppers and found that the 1st instar exuviae had the highest DNA yield and content, while the 3rd instar exuviae had the best quality. Consensus genotypes were identified from genomic DNA of hoppers at different developmental stages in the same individuals. Moreover, we demonstrated that the amplification products from DNA extracted from locust exuviae are the consensus sequences with those from the hemolymph and foreleg pre-tarsus. Therefore, non-invasive samples provide the same genotyping results as minimally invasive and invasive samples of the same individuals. Furthermore, this identification method that uses genomic DNA from exuviae can be used for early screening of positive genome-edited individuals in each generation for adult crossing. In our study, the non-invasive identification method was not only simpler and provided results earlier than existing methods, but also had a better reproducibility and accuracy. This non-invasive identification approach using genomic DNA from exuviae can be adapted to meet the growing demand for genetic analysis and will find wide application in insect genome editing research.

关键词： exuviae genome editing identification locusts molt non-invasive

Equilibrium Strategy of the Pursuit-Evasion Game in Three-Dimensional Space

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

IEEE/CAA Journal of Automatica Sinica 2024年第2期11卷 446-458页

作者： nuo Chen Linjing Li Wenji Mao School of Artificial Intelligence University of Chinese Academy of SciencesBeijing 100049 Institute of Automation Chinese Academy of SciencesBeijing 100190China

The pursuit-evasion game models the strategic interaction among players, attracting attention in many realistic scenarios, such as missile guidance, unmanned aerial vehicles, and target defense. Existing studies mainly concentrate on the cooperative pursuit of multiple players in two-dimensional pursuit-evasion games. However, these approaches can hardly be applied to practical situations where players usually move in three-dimensional space with a three-degree-of-freedom control. In this paper,we make the first attempt to investigate the equilibrium strategy of the realistic pursuit-evasion game, in which the pursuer follows a three-degree-of-freedom control, and the evader moves freely. First, we describe the pursuer's three-degree-of-freedom control and the evader's relative coordinate. We then rigorously derive the equilibrium strategy by solving the retrogressive path equation according to the Hamilton-Jacobi-Bellman-Isaacs(HJBI) method, which divides the pursuit-evasion process into the navigation and acceleration phases. Besides, we analyze the maximum allowable speed for the pursuer to capture the evader successfully and provide the strategy with which the evader can escape when the pursuer's speed exceeds the threshold. We further conduct comparison tests with various unilateral deviations to verify that the proposed strategy forms a Nash equilibrium.

关键词： Differential game equilibrium strategy pursuit-evasion game threedegree-of-freedom control

Highly Conductive Ag/pCF/MVQ Composite Rubber for Efficient Electromagnetic Interference Shielding

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2024年第6期42卷 864-873页

作者： yang Chen Xiao-Ming Shao Liang He Yi-nuo Xu Qi-Yuan Yao Ding Feng Wen-Cai Wang State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing100029China Key Laboratory of Beijing City for Preparation and Processing of Novel Polymer Materials Beijing University of Chemical TechnologyBeijing100029China Sino-german School of Engineering Qingdao University of Science and TechnologyQingdao266400China

In this study,flexible and highly conductive composite rubber at low filler content was successfully prepared through polydopamine-assisted electroless silver plating plus mechanical ***,carbon fibers(CF)were activated by polydopamine(PDA)to improve the surface activity by self-polymerization ***,because of the metal chelating ability of PDA,silver layer was firmly deposited on the surface of CF through a facile electroless silver plating ***,flexible silver-plated carbon fibers(Ag/pCF)silicone rubber composites prepared by mechanical *** using X-ray photoelectron spectroscopy(XPS)and X-ray diffraction(XRD),the chemical composition and crystal structure of Ag/pCF were examined,and scanning electron microscopy(SEM)was used to assess the surface morphology of the Ag/*** results showed that a uniform and dense silver layer was formed on the surface of the CF,and the conductivity of the Ag/pCF could reach 7885 S/*** was noteworthy that the composite rubber filled with only 45 phr Ag/pCF had a high electromagnetic interference shielding effectiveness(100 dB)due to the low density and high aspect ratio of Ag/*** composite rubber has excellent potential for application in the field of electromagnetic interference shielding.

关键词： Carbon fibers Polydopamine Electroless plating Silver Electromagnetic interference shielding