检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

论反垄断法实施中的专家参与问题

安徽大学学报（哲学社会科学版） 2010年第1期34卷 128-135页

作者：董新凯郁尊科南京理工大学知识产权学院

反垄断法的一些特点决定了专家参与其实施的重要性。专家参与既可以发生在司法程序中,也可以发生在行政程序中,还可以发生在民间程序中。专家参与的身份可能是案件审理人员,也可能是证人,还可能是咨询人员。在专家参与时,对专家的独立... 详细信息

反垄断法的一些特点决定了专家参与其实施的重要性。专家参与既可以发生在司法程序中,也可以发生在行政程序中,还可以发生在民间程序中。专家参与的身份可能是案件审理人员,也可能是证人,还可能是咨询人员。在专家参与时,对专家的独立性、专家的选择和专家意见的冲突等难题应当有良好的法律对策。我国的《反垄断法》对专家参与问题没能很好地解决,尚需通过其他法律机制解决,但解决问题的最好办法是完善我国的《反垄断法》。

关键词：反垄断法专家参与法律对策

Surface micro-arrays enhancing electromagnetic interference shielding of polydimethylsiloxane/multiwalled carbon nanotubes nanocomposites

在线全文

学校读者我要写书评

暂无评论

Nano Research 2025年第1期18卷 508-519页

作者： ke Jiang Zhi Chen Ji yu Chen Zheng Shan Huang Ming Wang Chongqing key Laboratory of Soft-Matter Material Manufacturing School of Chemistry and Chemical EngineeringSouthwest UniversityChongqing 400715China School of Mechanics Civil Engineering and ArchitecturesNorthwestern Polytechnical UniversityXi’an 710072China Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200China

Herein,the electromagnetic shielding performance of surface concave-convex(SC)and zig-zag micro-arrays was studied by using a simulation prediction and a three-dimensional(3D)printing custom ***,surface stripe concaveconvex(SSC)and surface cylindrical concave-convex(SCC)micro-arrays with or without zig-zag micro-arrays are designed,and their shielding performance is simulated in multi-bands(C-,X-band).The multiwalled carbon nanotubes/polydimethylsiloxane composites(MWCNT/PDMS)with different SC structures and different electrical conductivity are molded in acrylonitrile-butadiene-styrene copolymer(ABS)molds which are printed by a 3D *** results show that the electromagnetic interference shielding effectiveness(EMI SE)of the samples can be enhanced by constructing the SC micro-arrays with zig-zag micro-arrays,and improving with the increase of conductivity and *** addition,the shielding mechanism of the SC-MWCNT/PDMS composites is investigated and discussed by an electromagnetic simulation.

关键词： surface micro-arrays electrical properties electromagnetic interference(EMI)shielding three-dimensional(3D)printing

Actively tunable electromagnetically induced transparency in hybrid Dirac-VO2 metamaterials

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Optoelectronics Letters 2025年第1期21卷 13-20页

作者： DI ke XIE Meng XIA Huarong CHENG Anyu LIU yu DU Jiajia Department of Optoelectronic Engineering Chongqing University of Post and Telecommunications Chongqing key Laboratory of Autonomous Navigation and Microsystem Chongqing University of Posts and Telecommunications Department of Automation Chongqing University of Post and Telecommunications

In this paper, we present a metamaterial structure of Dirac and vanadium dioxide（VO2） and investigate its optical properties using the finite-difference time-domain（FDTD） technique. Using the phase transition feature of VO2, the design can realize active tuning of the plasmon induced transparency（PIT） effect at terahertz frequency, thereby converting from a single PIT to a double-PIT. When VO2is in the insulating state, the structure is symmetric to obtain a single-band PIT effect. When VO2is in the metallic state, the structure turns asymmetric to realize a dual-band PIT effect. This design provides a reference direction for the design of actively tunable metamaterials. Additionally, it is discovered that the transparent window's resonant frequency and the Fermi level in this structure have a somewhat linear relationship. In addition, the structure achieves superior refractive index sensitivity in the terahertz band, surpassing 1 THz/RIU. Consequently, the design exhibits encouraging potential for application in refractive index sensors and optical switches.

关键词： Transparency

Hypoxia-preconditioned bone marrow-derived mesenchymal stem cells protect neurons from cardiac arrest-induced pyroptosis

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第4期20卷 1103-1123页

作者： Xiahong Tang Nan Zheng Qingming Lin Yan You Zheng Gong Yangping Zhuang Jiali Wu yu Wang Hanlin Huang Jun ke Feng Chen Shengli Clinical Medical College of Fujian Medical University Fujian Medical UniversityFuzhouFujian ProvinceChina Department of Emergency Fujian Provincial HospitalFuzhouFujian ProvinceChina Fujian Provincial key Laboratory of Emergency Medicine FuzhouFujian ProvinceChina The Second Department of Intensive Care Unit Fujian Provincial Hospital South BranchFuzhouFujian ProvinceChina

Cardiac arrest can lead to severe neurological impairment as a result of inflammation,mitochondrial dysfunction,and post-cardiopulmonary resuscitation neurological *** preconditioning has been shown to improve migration and survival of bone marrow–derived mesenchymal stem cells and reduce pyroptosis after cardiac arrest,but the specific mechanisms by which hypoxia-preconditioned bone marrow–derived mesenchymal stem cells protect against brain injury after cardiac arrest are *** this end,we established an in vitro co-culture model of bone marrow–derived mesenchymal stem cells and oxygen–glucose deprived primary neurons and found that hypoxic preconditioning enhanced the protective effect of bone marrow stromal stem cells against neuronal pyroptosis,possibly through inhibition of the MAPK and nuclear factor κB ***,we transplanted hypoxia-preconditioned bone marrow–derived mesenchymal stem cells into the lateral ventricle after the return of spontaneous circulation in an 8-minute cardiac arrest rat model induced by *** results showed that hypoxia-preconditioned bone marrow–derived mesenchymal stem cells significantly reduced cardiac arrest–induced neuronal pyroptosis,oxidative stress,and mitochondrial damage,whereas knockdown of the liver isoform of phosphofructokinase in bone marrow–derived mesenchymal stem cells inhibited these *** conclude,hypoxia-preconditioned bone marrow–derived mesenchymal stem cells offer a promising therapeutic approach for neuronal injury following cardiac arrest,and their beneficial effects are potentially associated with increased expression of the liver isoform of phosphofructokinase following hypoxic preconditioning.

关键词： bone marrow–derived mesenchymal stem cells cardiac arrest cardiac resuscitation hypoxic preconditioning liver isoform of phosphofructokinase mitochondria neuroinflammation oxidative stress pyroptosis reactive oxygen species

Role of nutrition in diabetes mellitus and infections

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2025年第3期13卷 1-8页

作者： Xue-Lu yu Li-yun Zhou Xiao Huang Xin-yue Li Ming-ke Wang Ji-Shun Yang Naval Medical Center of PLA Naval Medical UniversityShanghai 200052China

In this editorial,we have commented on the article that has been published in the recent issue of World Journal of Clinical *** authors have described a case of unilateral thyroid cyst and have opined that the acute onset of infection may be linked to diabetes mellitus(DM).We have focused on the role of nutrition in the association between DM and *** with DM are at a high risk of infection,which could also be attributed to nutrition-related *** interventions for patients with diabetes are mainly based on a low-calorie diet,which can be achieved by adhering to a low-carbohydrate ***,dietary fiber supplementation is recommended to maintain the diversity of the gut ***,high-quality protein can prevent the increased risk of infection due to *** of vitamins C,vitamins A,vitamins D,and folic acid improves blood sugar control and facilitates immune *** deficiencies augment the risk of infection,but the relationship with diabetes is mostly U-shaped and a good intake should be maintained.

关键词： Diabetes mellitus Infection Macronutrients Vitamins Minerals

Tunable Luminescence Properties and Elucidating the Electronic Structures of Single-Phase Spherical BaWO 4:Dy^(3+),Tm^(3+),Eu^(3+)Phosphors for Warm-White-Lighting

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Renewable Materials 2022年第2期10卷 431-451页

作者： zun Bi ke Jia yunfei Liu Yinong Lyu State key Laboratory of Materials–Orient Chemical Engineering College of Materials Science and EngineeringNanjing Tech UniversityNanjingChina Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM) NanjingChina Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites NanjingChina

A series of uniform single-phase spherical BaWO 4:Dy^(3+),Tm^(3+),Eu^(3+)phosphors were prepared via a microwave hydrothermal method by using trisodium citrate dehydrate as *** phase structure,morphology and photoluminescence properties were measured by powder X-ray diffraction,scanning electron microscope and fluorescence spectrometer,*** results show that uniform spherical microcrystals with diameters in the range of 2–4μm are *** the phase and morphology of samples are not significantly changed by doping rare earth(RE^(3+))*** the excitation wavelength of 356 and 365 nm,the samples BaWO 4:0.03Dy^(3+),yTm^(3+)can emit cold white *** order to lower the correlated color temperature(CCT)to get a warm white light,the Eu^(3+)ions were doped into BaWO 4:0.03Dy^(3+),0.01Tm^(3+).Especially,under the excitation of 365 nm,BaWO 4:0.03Dy^(3+),0.01Tm^(3+),0.03Eu^(3+)phosphor shew a bright warm white light with color coordi-nate of(0.4013,0.3629)and CCT of 3288 ***,in the BaWO 4:Dy^(3+),Tm^(3+),Eu^(3+)phosphors,the energy transfer mechanism among Dy^(3+),Tm^(3+)and Eu^(3+)ions have been discussed and the change of electron structures have been calculated by first-principles *** results shew that the uniform single-phase spherical BaWO 4:Dy^(3+),Tm^(3+),Eu^(3+)phosphors could be favorable candidates in warm white LEDs.

关键词： Barium tungstate microwave hydrothermal method spherical warm white lighting electron structures

Performance Evaluation of Memory-Centric ARMv8 Many-Core Architectures:A Case Study with Phytium 2000+

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Computer Science & Technology 2021年第1期36卷 33-43页

作者： Jian-Bin Fang Xiang-ke Liao Chun Huang De-zun Dong College of Computer National University of Defense TechnologyChangsha 410073China

This article presents a comprehensive performance evaluation of Phytium 2000+,an ARMv8-based 64-core *** focus on the cache and memory subsystems,analyzing the characteristics that impact the high-performance computing *** provide insights into the memory-relevant performance behaviours of the Phytium 2000+system through *** the help of the well-known roofline model,we analyze the Phytium 2000+system,taking both memory accesses and computations into *** on the knowledge gained from these micro-benchmarks,we evaluate two applications and use them to assess the capabilities of the Phytium 2000+*** results show that the ARMv8-based many-core system is capable of delivering high performance for a wide range of scientific kernels.

关键词： many-core architecture memory-centric design performance evaluation

Congestive heart failure in COX2 deficient rats

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2021年第7期64卷 1068-1076页

作者： Qiangyou Wan Deping Kong Qian Liu Shumin Guo Chenchen Wang Yan Zhao zun-Ji ke Ying yu Academy of Integrative Medicine Shanghai University of Traditional Chinese MedicineShanghai 201203China Department of Pharmacology and Tianjin key Laboratory of Inflammatory Biology Key Laboratory of Immune Microenvironment and Disease(Ministry of Education)School of Basic Medical SciencesTianjin Medical UniversityTianjin 300070China Shanghai Institute of Nutrition and Health Shanghai Institutes for Biological SciencesUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai 200031China

Non-steroidal anti-inflammatory drugs(NSAIDs)inhibit prostaglandin(PG)formation by targeting cyclooxygenase(COX)1 and ***-term use of NSAIDs that selectively inhibit COX2 increases the risk for thrombotic events,cardiac failure,and ***,the underlying mechanisms remain *** this study,COX1-and COX2-deficient rats were created via Cas9/RNA-mediated gene *** genotyping and Western blot analysis confirmed successful generation of COX1^(-/-) and COX2^(-/-) *** COX1^(-/-) rats grew normally,while more than 70%of COX2^(-/-) rats after wean died within 2 *** showed markedly reduced left ventricular ejection fraction and fractional shortening in adult COX2^(-/-) rats compared to those in wildtype(WT)*** analysis revealed accumulation of inflammatory cells and severe interstitial and perivascular fibrosis in COX2^(-/-)cardiac ***,cardiac ATP and acetyl-Co A production was dramatically decreased in COX2^(-/-) ***,the expression of genes related to mitochondrial oxidation,such as those that encode for subunits of pyruvate dehydrogenase complex and acyl Co A dehydrogenases,were downregulated,while glycolytic hexokinase 1(HK1)was upregulated in COX2^(-/-) heart *** observations indicate that COX2-deficient rats developed spontaneously heart failure,likely as a result of dysregulated cardiac energy metabolism.

关键词： NSAID cyclooxygenase prostaglandin heart failure energy metabolism

Sparse Modal Decomposition Method Addressing Underdetermined Vortex-Induced Vibration Reconstruction Problem for Marine Risers

在线全文

学校读者我要写书评

暂无评论

China Ocean Engineering 2024年第2期38卷 285-296页

作者： DU zun-feng ZHU Hai-ming yu Jian-xing State key Laboratory of Hydraulic Engineering Intelligent Construction and Operation School of Civil EngineeringTianjin UniversityTianjin 300350China

When investigating the vortex-induced vibration(VIV)of marine risers,extrapolating the dynamic response on the entire length based on limited sensor measurements is a crucial step in both laboratory experiments and fatigue monitoring of real *** problem is conventionally solved using the modal decomposition method,based on the principle that the response can be approximated by a weighted sum of limited vibration ***,the method is not valid when the problem is underdetermined,i.e.,the number of unknown mode weights is more than the number of known *** study proposed a sparse modal decomposition method based on the compressed sensing theory and the Compressive Sampling Matching Pursuit(Co Sa MP)algorithm,exploiting the sparsity of VIV in the modal *** the validation study based on high-order VIV experiment data,the proposed method successfully reconstructed the response using only seven acceleration measurements when the conventional methods failed.A primary advantage of the proposed method is that it offers a completely data-driven approach for the underdetermined VIV reconstruction problem,which is more favorable than existing model-dependent solutions for many practical applications such as riser structural health monitoring.

关键词： motion reconstruction vortex-induced vibration(VIV) marine riser modal decomposition method compressed sensing