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FLOW－INJECTION　ON－LINE　COLUMN　PRECONCENTRATION　IN　MICROWAVE　PLASMA　TORCH　ATOMIC　EMISSION　SPECTROMETRY

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Chinese Chemical Letters 1994年第3期5卷 237-238页

作者： Deng Mei YE Jing Hong ZHAO han qi zhang qin han JIN(Department of Chemistry, Jilin University, Changchun, 130023)

In this paper the analytical performance of now-injection on-line column preconcentration in microwave plasma torch atomic emission spectrometry (MPT-AES ) was studied. The experimental results indicated that the anal... 详细信息

关键词： TORCH ATOMIC COLUMN LINE

High Resolution Microwave B-Field Imaging Using a Micrometer-Sized Diamond Sensor

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Chinese Physics Letters 2019年第12期36卷 70-73页

作者： Wen-Hao He Ming-Ming Dong Zhen-Zhong Hu qi-han zhang Bo Yang Ying Liu Xiao-Long Fan Guan-Xiang Du College of Telecommunication&Information Engineering Nanjing University of Posts and TelecommunicationsNanjing 210000 School of Physical Science and Technology Lanzhou UniversityLanzhou 730000

We propose a diamond-based micron-scale sensor and perform high-resolution B-field imaging of the near-field distribution of coplanar *** sensor consists of diamond crystals attached to the tip of a tapered fiber with a physical size on the order of *** amplitude of the B-field component B is obtained by measuring the Rabi oscillation *** result of Rabi sequence is fitted with a decayed *** apply the modulation-locking technique that demonstrates the vector-resolved field mapping of the micromachine coplanar waveguide structure(CPW).B-field line scan was performed on the CPW with a scan step size of 1.25μ*** demonstrate vector resolved rf field sensing,a full field line scan acts(was performed)along four NV axes at a height of 50μm above the device *** simulations are compared with the experimental results by vector-resolved *** technique allows the measurement of weak microwave signals with a minimum resolvable modulation depth of 20 *** sensor will have great interest in micron-scale resolved microwave B-field measurements,such as electromagnetic compatibility testing of microwave integrated circuits and characterization of integrated microwave components.

关键词： microwave resolved Diamond

STUDY ON ANALYTICAL PERFORMANCE OF LOW-POWERED ArMPT-AES

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Chinese Chemical Letters 1993年第10期4卷 917-920页

作者： Ying WANG Xiang Lin YUAN han qi zhang Wen Jun YANG qin han JIN Department of Chemistry,Jilin University,Changchun,130023

In this paper the analytical performance of the low-powered Ar microwave plasma torch atomic emission spectrometry(MPT-AES) was *** experimental results indicate that the analytical performance of low-powered ArMPT-AE... 详细信息

关键词： STUDY ON ANALYTICAL PERFORMANCE OF LOW-POWERED ArMPT-AES HCI

FOXP3 expression and clinical characteristics of hepatocellular carcinoma

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World Journal of Gastroenterology 2010年第43期16卷 5502-5509页

作者： Wei-Hua Wang, Jun-Zhi Wang, National Center for Safety Evaluation of Drugs, National Institute for the Control of Pharmaceutical and Biological Products, Beijing 100050, China Wei-Hua Wang, Chang-Li Jiang, Cun zhang, Bo Yan, Wei zhang, Wei han, Ying-qi zhang, Biotechnology Center, School of Pharmacy, the Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China Wei-Hua Wang, Chang-Li Jiang, Cun zhang, Bo Yan, Wei zhang, Wei han, Ying-qi zhang, State Key Laboratory of Cancer Biology, Xi’an 710032, Shaanxi Province, China Wei Yan, Department of Pathology, Xijing Hospital, The Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China Yu-Hai zhang, Department of Health Statistics, The Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China Jiang-Tao Yang, Department of Pathology, Xi’an Gaoxin Hospital, Xi’an 710032, Shaanxi Province, China Biotechnology Center School of Pharmacy the Fourth Military Medical University 17 Changle West Road Xi'an 710032 Shaanxi Province China. zhangyqh@***

AIM: To study the biological and clinical characteristics of transcription factor forkhead box protein 3 (FOXP3) in hepatocellular carcinoma (HCC). METHODS: We analyzed the expression and localization of FOXP3 in HCC tissues and cell lines to evaluate its biological features. The relationship between FOXP3 staining and clinical risk factors of HCC was assessedto identify the clinical characteristics of FOXP3 in HCC. RESULTS: The mRNA and protein expression of FOXP3 were found in some hepatoma cell lines. Immunohistochemical (IHC) analysis of HCC sections revealed that 48% of HCC displayed FOXP3 staining, but we did not find any FOXP3 staining in normal liver tissues and para-tumor tissues. IHC and Confocal analysis showed that the expressions of FOXP3 were mainly present in the nucleus and cytoplasm of tumor cells in tissues or cell lines. In HCC, the distribution of FOXP3 was similar to that of the cirrhosis, but not to the hepatitis B virus. Those findings implicate that FOXP3 staining seems to be associated with the high risk of HCC. CONCLUSION: The clinical characteristics of FOXP3 in HCC warrants further studies to explore its functions and roles in the cirrhosis and development of HCC.

关键词： Forkhead box protein 3 Hepatocellular carcinoma Tumor differentiation Cirrhosis Hepatitis B virus

Ammonia pyrolysis oxidation excited by nanosecond pulsed discharge:Global/fluid models hybrid solution

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Journal of Energy Chemistry 2025年第1期100卷 385-396页

作者： Mingming zhang hanyu Wu qi Chen Jiaxin Yang Bonan Liu School of Mechanical Electronic and Control Engineering Beijing Jiaotong University China University of Petroleum

The kinetic characteristics of plasma-assisted oxidative pyrolysis of ammonia are studied by using the global/fluid models hybrid solution ***,the stable products of plasma-assisted oxidative pyrolysis of ammonia are *** results show that the consumption of NH3/O2and the production of N2/H2change linearly with the increase of voltage,which indicates the decoupling of nonequilibrium molecular excitation and oxidative pyrolysis of ammonia at low ***,the detailed reaction kinetics mechanism of ammonia oxidative pyrolysis stimulated by a nanosecond pulse voltage at low pressure and room temperature is *** on the reaction path analysis,the simplified mechanism is *** detailed and simplified mechanism simulation results are compared with experimental data to verify the accuracy of the simplified ***,based on the simplified mechanism,the fluid model of ammonia oxidative pyrolysis stimulated by the nanosecond pulse plasma is established to study the pre-sheath/sheath behavior and the resultant consumption and formation of key *** results show that the generation,development,and propagation of the pre-sheath have a great influence on the formation and consumption of *** consumption of NH3by the cathode pre-sheath is greater than that by the anode pre-sheath,but the opposite is true for OH and O（1S）.However,within the sheath,almost all reactions do not ***,by changing the parameters of nanosecond pulse power supply voltage,it is found that the electron number density,electron current density,and applied peak voltages are not the direct reasons for the structural changes of the sheath and ***,the discharge interval has little effect on the sheath structure and gas mixture *** research results of this paper not only help to understand the kinetic promotion of non-equilibrium excitation in the process of oxidative pyrolysis but also help to explore th

关键词： Nanosecond pulsed discharge Ammonia Oxidative pyrolysis Fluid model Global model

Potential role of tanycyte-derived neurogenesis in Alzheimer's disease

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Neural Regeneration Research 2025年第6期20卷 1599-1612页

作者： Guibo qi han Tang Jianian Hu Siying Kang Song qin Department of Anatomy Histologyand EmbryologySchool of Basic Medical SciencesFudan UniversityShanghaiChina State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science Fudan UniversityShanghaiChina

Tanycytes, specialized ependymal cells located in the hypothalamus, play a crucial role in the generation of new neurons that contribute to the neural circuits responsible for regulating the systemic energy balance. The precise coordination of the gene networks controlling neurogenesis in naive and mature tanycytes is essential for maintaining homeostasis in adulthood. However, our understanding of the molecular mechanisms and signaling pathways that govern the proliferation and differentiation of tanycytes into neurons remains limited. This article aims to review the recent advancements in research into the mechanisms and functions of tanycyte-derived neurogenesis. Studies employing lineage-tracing techniques have revealed that the neurogenesis specifically originating from tanycytes in the hypothalamus has a compensatory role in neuronal loss and helps maintain energy homeostasis during metabolic diseases. Intriguingly,metabolic disorders are considered early biomarkers of Alzheimer's disease. Furthermore,the neurogenic potential of tanycytes and the state of newborn neurons derived from tanycytes heavily depend on the maintenance of mild microenvironments, which may be disrupted in Alzheimer's disease due to the impaired blood–brain barrier ***, the specific alterations and regulatory mechanisms governing tanycyte-derived neurogenesis in Alzheimer's disease remain unclear. Accumulating evidence suggests that tanycyte-derived neurogenesis might be impaired in Alzheimer's disease, exacerbating neurodegeneration. Confirming this hypothesis, however, poses a challenge because of the lack of long-term tracing and nucleus-specific analyses of newborn neurons in the hypothalamus of patients with Alzheimer's disease. Further research into the molecular mechanisms underlying tanycyte-derived neurogenesis holds promise for identifying small molecules capable of restoring tanycyte proliferation in neurodegenerative diseases. This line of investigation could pro

关键词： Alzheimer's disease blood–brain barrier ependymoglial cells hypothalamus metabolic diseases neural stem cells neurogenesis neuroinflammatory diseases neurons tanycyte

Viral and inflammatory factors determine the occurrence of hepatitis B virus-related hepatocellular carcinoma

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Viral and inflammatory factors determine the occurrence of h...

Flexible molecules dedicate to release strain of inverted inorganic perovskite solar cell

全国肿瘤流行病学和肿瘤病因学学术会议

作者： Yi-Fang han,qi zhang,Guang-Wen Cao Department of Epidemiology,Second Military Medical University,Shanghai 200433,China

Primary liver cancer in men is the second most frequent cause of cancer death and hepatocellular carcinoma(HCC) accounts for 70%to 85%of the total liver cancer burden *** infection with hepatitis B virus(HBV) contributes to more than three quarters of all HCC cases *** serum viral load(≥10 copies/mL) is the most reliable indicator of viral replication in predicating the development of *** genotype C(C2) can predict HCC in the HBV-infected subjects,especially in the cirrhotic patients over 50 years,whereas genotype B(B2) is associated with the development of HCC in the non-cirrhotic young patients and relapse of HCC after surgical *** HBV subgenotype has distinct pattern of *** mutations including C1653T, T1753V,A1762T/G1764A,T1674C/G,C1766T,T1768A,G1899A,C2002T, A2159G,A2189C,G2203A/T,T53C,preS2 start codon mutation,preS1 deletion, C2964A,A2962G,C3116T,and C7A are clearly associated with an increased risk of *** mutations in combinations are specifically associated with *** mutations accumulate during the progression of chronic HBV infection and can predict the occurrence of *** inflammation,possibly initiated by HBV and maintained by imbalance either between Th1 and Th2 cells or between Th17 and Treg cells,may lead to an increase in the frequency of viral mutation via induction of cellular cytidine *** HBV mutations may be selected by immune reaction,whereas the escaped HBV mutants might in turn play an active role in *** inflammatory pathways including nuclear factor-κB, the signal transducer and activator of transcription 3,Wnt/β-catenin,and transforming growth factor-β1 signaling pathways contribute,at least partially,to the inflammation-necrosis- regeneration process,ultimately *** hallmark molecules including serum IL-6 can predict the occurrence of this malignancy in the hepatitis B *** factors are of importance for developing active

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Journal of Energy Chemistry 2025年第1期100卷 87-93页

作者： Hongrui Sun Sanlong Wang Pengyang Wang Yali Liu Shanshan qi Biao Shi Ying Zhao Xiaodan zhang Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage Center State Key Laboratory of Photovoltaic Materials and CellsNankai University Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Haihe Laboratory of Sustainable Chemical Transformations Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)

The tensile strain in inorganic perovskite films induced by thermal annealing is one of the primary factors contributing to the inefficiency and instability of inorganic perovskite solar cells （IPSCs）,which reduces the defect formation ***,a flexible molecule 5-maleimidovaleric acid （5-MVA） was introduced as a strain buffer to release the residual strain of *** anhydride and carboxyl groups in 5-MVA interact strongly with the uncoordinated Pb2+through Lewis acid-base reaction,thus tightly“pull”the perovskite *** in-between soft carbon chain increased the structural flexibility of CsPbI2.85Br0.15perovskite materials,which effectively relieved the intrinsic internal strain of CsPbI2.85Br0.15,resisted the corrosion of external strain,and also reduced the formation of defects such as VIand *** addition,the introduction of 5-MVA improved crystal quality,passivated residual defects,and narrowed energy level ***,power conversion efficiency （PCE） of NiOxbased inverted IPSCs increased from 19.25% to 20.82% with the open-circuit voltage enhanced from 1.164 V to 1.230 *** release of strain also improved the stability of CsPbI2.85Br0.15perovskite films and devices.

关键词： Inverted inorganic perovskite solar cells Flexible molecules Strain release Crystallization Energy barrier High PCE

Viral and host factors predict the prognosis of hepatitis B virus-related hepatocellular carcinoma

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Viral and host factors predict the prognosis of hepatitis B ...