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World Journal of Clinical Cases 2024年第22期12卷 4940-4946页

作者： Li-Ping Wang Zhong-Hua Hu jun-sheng jiang Jie Jin Department of Pediatrics The First People's Hospital of Linping DistrictHangzhou 310000Zhejiang ProvinceChina Department of Pediatrics Changzhou Children HospitalChangzhou 213100Jiangsu ProvinceChina

BACKGROUND Mycoplasma pneumoniae pneumonia(MPP)significantly impacts pediatric health,necessitating markers for early severe disease *** To investigate the correlation between serum inflammatory marker and the severity of MPP in *** A prospective study was carried out from January 2023 to November 2023.A total of 160 children with MPP who underwent treatment were selected:80 had severe MPP and 80 had mild *** and laboratory data were collected at the time of hospital admission and during *** operating characteristic curves were utilized to assess the diagnostic and prognostic for severe *** Fever duration and length of hospitalization in pediatric patients with severe MPP exceeded those with mild *** incidence of pleural effusion,lung consolidation,and bronchopneumonia on imaging was markedly elevated in the severe MPP cohort compared to the mild MPP *** contrast to the mild cohort,there was a notable increase in C-reactive protein(CRP),procalcitonin(PCT),erythrocyte sedimentation rate,lactic dehydrogenase,D-dimer,and inflammatory cytokines[interleukin(IL)-6,IL-8,IL-10 and tumor necrosis factor(TNF)-α]in the severe MPP group were significantly *** Serum inflammatory markers(CRP,PCT,IL-6,D-dimer,IL-10 and TNF-α)were considered as predictors in children with severe MPP.

关键词： Cytokine Mycoplasma pneumoniae pneumonia Children,Community-acquired pneumonia levels Interleukin-6 D-dimer

Prediction of liquid circulation flow rate in RH degasser:improvement of decarburization at low atmospheric pressure

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Journal of Iron and Steel Research(International) 2024年第7期31卷 1661-1667页

作者： Gu-jun Chen sheng-ping He College of Materials Science and Engineering Yangtze Normal UniversityChongqing 400044China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China

The two-fluid model coupled with population balance model was used for simulating the gas-liquid flow in the Ruhrstahl-Heraeus(RH)*** predicted circulation flow rate was compared with that measured from a water model experiment to validate the mathematical ***,influence of snorkel immersion depth on liquid circulation flow rate was numerically investigated under an atmospheric pressure of 101 and 84 kPa,*** result indicates that the circulation flow rate of the RH degasser in the high-altitude area was severely reduced because of the decrease in atmospheric ***,increasing the snorkel immersion depth from 0.5 to 0.7 m can compensate for the decrease in atmospheric *** test result indicates that decarburization rate is significantly enhanced by increasing the snorkel immersion *** optimization,the percentage of heats with a final carbon content less than 0.002 wt.%is significantly increased from 22.0%to 96.4%.

关键词： RH degasser Two-fluid model Population balance model-Circulation flow rate Decarburization Snorkel immersion depth

Active components of Dengzhan shengmai ameliorate cognitive impairment by facilitating hippocampal long-term potentiation via the NMDA receptor-mediated Ca^(2+)/CaMKII pathway

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Journal of Pharmaceutical Analysis 2024年第3期14卷 435-438页

作者： Congyu Ma Ning sheng jun Wu Lulu Wang Jiandong jiang Haibo Yu Jinlan Zhang State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing100050China Institute of Medicinal Biotechnology Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing100050China

Abnormal synaptic plasticity causes cognitive *** long-term potentiation(LTP)is a critical synaptic plasticity process[1].Rescuing impaired LTP is challenging;hence,novel agents are required for LTP *** medicine Dengzhan shengmai(DzSM)has shown notable clinical efficacy against cognitive deficits[2].However,it remains unclear how DzSM modulates *** previous study[3]revealed the influence of DZSM on glutamatergic and GABAergic synapses following chronic cerebral hypoperfusion(CCH),which motivated us to assess how DzSM affects synaptic functions.

关键词： impaired impairment hence

Exploration of Strong Metal-Support Interaction in Heterogeneous Catalysts by in situ Transmission Electron Microscopy

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Chinese Journal of Chemistry 2024年第9期42卷 1004-1008页

作者： Yongjun jiang sheng Dai Key Laboratoryfor Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Institute of Fine ChemicalsSchool of Chemistry&Molecular EngineeringEast China Universityof Science and TechnologyShanghai 200237China

The phenomenon of strong metal-support interaction(SMSI)observed in supported metal catalysts,usually accompanied by the formation of the encapsulation layer on metal nanoparticles,has attracted extensive research attention due to its significance in heterogeneous ***,great progress has been made in recent years in investigating SMSI by in situ transmission electron microscopy(TEM),along with an enhanced comprehension of the underlying mechanisms governing SMSI *** emerging topic summarizes recent progress utilizing in situ TEM to study the interaction between metal and support and the relationship between the structure and performance of the supported catalyst under reaction conditions.A brief perspective about the use of in situ TEM for further study of SMSI is also presented,showing prospects in this field that will stimulate further upsurging research in promoting the catalytic efficiency of supported catalysts.

关键词： Heterogeneous catalysis In situ TEM Strong metal-support interaction Structure changes Interfaces Structural evolution

Narrowband blue emitter based on fused nitrogen/carbonyl combination with external quantum efficiency approaching 30%

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Science China Chemistry 2024年第1期67卷 351-359页

作者： Long Chen Jia-Heng Cai You-jun Yu Yang-Kun Qu sheng-Yi Yang sheng-Nan Zou Rui-Hong Liu Dong-Ying Zhou Liang-sheng Liao Zuo-Quan jiang Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China Macao Institute of Materials Science and Engineering Macao University of Science and TechnologyMacao 999078China

Multi-resonance thermally activated delayed fluorescence(MR-TADF)emitters can enable narrowband emission with high color purity and electroluminescence ***/carbonyl(N/C=O)system is receiving increasing attention while the nitrogen/boron(N/B)system has been widely *** decoration is an effective approach for N/B type MR-TADF system but always leads to broadening and red-shifting of the emission band in N/C=O MR-TADF *** attribute these unfavorable phenomena to the formation of intramolecular charge transfer between the MR-core and peripheral *** address this issue,we have developed a new strategy by decorating DMQAO(a fused N/C=O MR-core)with a triazine acceptor and a neutral terphenyl group to construct MTDMQAO and MBDMQAO,*** introduction of the triazine acceptor not only realizes efficient narrowband emission in MTDMQAO,but also accelerates the reverse intersystem crossing process through enhanced spin-orbital *** a result,MTDMQAO exhibits a significantly higher external quantum efficiency of 29.4%compared to the referent emitters,validating the rationality of our derivation *** study highlights the potential of the N/C=O system for MR-TADF emitters and provides important insights for understanding the difference between N/B and N/C=O systems.

关键词： carbonyl group narrowband acceptor decoration thermally activated delayed fluorescence OLEDs

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Feedback processing in the primate brain and in AI systems

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Science China Technological Sciences 2024年第8期67卷 2297-2309页

作者： jiang Yong HE sheng Institute of Biophysics Chinese Academy of Sciences University of Chinese Academy of Sciences Institute of Artificial Intelligence Hefei Comprehensive National Science Center

The primate brain and artificial intelligence(AI) can both be conceptualized as information processing systems, each with its own distinct biological and computational architectures. While there are parallels between them, their respective structural and functional connections show significant differences. In this paper, we examine the central role of feedback processing in both the primate brain and AI systems, which has been shown to be crucial in shaping neural processing. By reviewing the key features of feedback processes in the primate brain, which allows the brain to incorporate prior knowledge, contextual information, and taskdemands into early-stage processing, we highlight the divergence in goals and functions between biological and AI *** these differences is crucial for elucidating the cognitive capabilities of the primate brain and for addressing computational challenges in AI. In advocating “Cognition-Inspired-Computation”, we suggest that integrating insights from feedback processing in the primate brain into AI research will offer potentially significant improvements for the advancement of AI systems.

关键词： cognitive neuroscience artificial intelligence feedback processing attention learning

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Cohomology groups of a new class of Kadison-Singer algebras

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Science China Mathematics 2024年第3期67卷 593-606页

作者： Guangyu An Xing Cheng jun sheng School of Mathematics and Data Science Shaanxi University of Science and TechnologyXi’an 710021China

Let N be a maximal discrete nest on an infinite-dimensional separable Hilbert space H,ξ=∑^(∞)_(n=1)en/2n be a separating vector for the commutant N',E_(ξ)be the projection from H onto the subspace[Cξ]spanned by the vectorξ,and Q be the projection from K=H⊕H⊕H onto the closed subspace{(η,η,η)^(T):η∈H}.Suppose that L is the projection lattice generated by the projections(E_(ξ) 0 0 0 0 0 0 0 0),{(E 0 0 0 0 0 0 0 0):E∈N},(I 0 0 0 I 0 0 0 0) and *** show that L is a Kadison-Singer lattice with the trivial ***,we prove that every n-th bounded cohomology group H~n(AlgL,B(K))with coefficients in B(K)is trivial for n≥1.

关键词： Kadison-Singer algebra Kadison-Singer lattice derivation cohomology group

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Volume of fluid simulation of single argon bubble dynamics in liquid steel under RH vacuum conditions

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Journal of Iron and Steel Research(International) 2024年第4期31卷 828-837页

Single argon bubble dynamics in liquid steel under Ruhrstahl-Heraeus(RH)vacuum conditions were simulated using the volume of fluid method,and the ideal gas law was used to consider bubble growth due to heat transfer and pressure *** simulation with a constant bubble density was also performed to validate the numerical method,and the predicted terminal bubble shape and velocity were found to agree with those presented in the Grace diagram and calculated by drag correlation,*** simulation results under RH conditions indicate that the terminal bubble shape and velocity cannot be *** primary bubble growth occurs within a rising distance of 0.3 m owing to heating by the high-temperature liquid steel;subsequently,the bubble continues to grow under equilibrium with the hydrostatic *** the initial diameter is 8-32 mm,the bubble diameter and rising velocity near the liquid surface are 80-200 mm and 0.5-0.8 m/s,*** bubble rises rectilinearly with an axisymmetric shape,and the shape evolution history includes an initial sphere,(dimpled)ellipsoid,and spherical cap with satellite bubbles.

关键词： Bubble dynamics Liquid steel Volume of fluid Bubble growth Bubble shape Rising velocity

Expression of Dickkopf-related Protein 1 in Patients with Temporomandibular Osteoarthritis after Treatment with Hyaluronic Acid

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Current Medical Science 2020年第3期40卷 574-579页

作者： sheng-jun jiang Zhong-zhi JIN You-jian PENG Department of Stomatology Renmin Hospital of Wuhan UniversityWuhan430060China

We previously reported that the increased expression of Dickkopf-related protein 1(DKK1)is positively related to vascular endothelial growth factor in the synovial fluid from patients with temporomandibular joint disorders(TMDs).DKK1 is involved in angiogenic activities in the TMD synovium in vitro,but the expression of DKK1 after treatment of TMD-osteoarthritis(TMD-OA)with hyaluronic acid(HA)remains *** this study,we assessed the expression of DKK1 in the synovial fluid of TMD-OA patients before and after treatment with HA via enzyme-linked immunosorbent *** also investigated the role of DKK1 in TMD-OA via immunohistochemical *** relationship between the expression of DKK1 and the clinicopathological characteristics was determined by Pearson *** results showed that the expression of DKK1 was significantly decreased after treatment with *** analyses indicated that the expression of DKK1 in the TMD-OA samples was closely correlated with mouth opening and *** findings suggest that DKK1 could play an important role in the pathogenesis and treatment of *** of the pain by HA treatment may be correlated with the decreased expression of DKK1.

关键词： Dickkopf-related protein 1 temporomandibular joint disorders hyaluronic acid synovial fluid

Film thickness effect on the performance of small molecular solar cell

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Optoelectronics Letters 2008年第5期4卷 321-323页

作者： LIN Hui YU jun-sheng HUANG jiang jiang Ya-dong State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Information University of Electronic Science and Technology of China （UESTC） Chengdu 610054 China

An efficient organic photovoltaic (OPV) cell with an indium-tin-oxide/CuPc/C60/Ag structure has been investigated by changing the film thickness of organic layers. A high open-circuit voltage (VOC) of 0.5 V,a short-circuit current density (JSC) of 5.81 mA/cm2,and a high power conversion efficiency (ηp) of 1.2% were achieved at an optimum film thickness. The results demonstrate that material thickness is an important factor to cell optimization,especially for maximizing the absorp-tion rate as well as reducing the cell resistance. Experimental results also indicate that the power conversion efficiency increases from 1.2% to 1.54% as a BCP exciton blocking layer of 10 nm is introduced.

关键词：油膜厚度分子太阳能电池有机层 OPV电池

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