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| 1 | An Important Spreading Event of the Neo-Tethys Ocean during the Late Jurassic and Early Cretaceous: Evidence from Zircon U-Pb SHRIMP Dating on Diabase in Nagarze, Southern Tibet显示文摘Widely distributed in Gyangze-Chigu area, southern Tibet, NW- and nearly E-W-trending diabase(gabbro)-gabbro diorite dykes are regarded as the product of the large-scale spreading of the late Neo-Tethys Ocean. In order to constrain the emplacement age of these dykes, zircons of two samples from diabases in Nagarze were dated by using the U-Pb SHRIMP method. Two nearly the same weighted mean 206Pb/238U ages were obtained in this paper, which are 134.9±1.8 Ma (MSWD= 0.65) and 135.5±2.1 Ma (MSWD=1.40), respectively. They not only represent the crystallization age of the diabase, but also documented an important spreading event of the Neo-Tethys Ocean during the late Jurassic and early Cretaceous. This dating result is of great significance to reconstruct the temporal framework of the late Neo-Tethys Ocean in the Qinghai-Tibet Plateau. | JIANG Sihong NIE Fengjun HU Peng LIU Yan | 2006 | Acta Geologica Sinica(English Edition)2006，80，4： | 28 |
| 2 | Effect of impregnation strategy on catalytic hydrogenation behavior of PtCo catalysts supported on La2O2CO3 nanorods显示文摘Small Pt and Pt-Co nanoparticles(NPs) stabilized on La_2 O_2 CO_3 nanorods(LOC) were prepared by wet impregnation method,and probed in liquid-phase chemoselective hydrogenation of crotonaldehyde(CRAL) to crotyl alcohol(CROL).It is found that incorporation of Co atoms into Pt catalyst significantly improves the hydrogenation activity and desired selectivity to CROL as it destroys the Pt-lanthanum interfaces and results into the formation of Pt-Co particles.In addition,a close examination of catalyst surface and reactive performance suggests that the impregnation sequence of Pt and Co exerts great influence on the physicochemical property and the catalytic hydrogenation behavior of PtCo/LOC catalysts.As a result of the interaction between Pt and Co species,high alloying degree of Pt-Co NPs is obtained in the co-impregnated catalyst(Pt-Co/LOC),thus achieving the highest hydrogenation activity.The selective deposit of Co atoms onto the low-coordinated Pt sites leads to the smallest metal particle size and high dispersion of Pt-Co NPs over the Pt/Co/LOC,giving rise to the highest selectivity and yield to CROL. | Fengjun Hou Huahua Zhao Huanling Song Lingjun Chou Jun Zhao Jian Yang Liang Yan | 2018 | Journal of Rare Earths2018，36，9： | 4 |
| 3 | Hybrid Electric Vehicle Model Predictive Control Torque-Split Strategy Incorpora- ting Engine Transient Characteristics 显示文摘 | Yan Fengjun Wang Junmin Huang Kaisheng | 2012 | IEEE Transactions on Vehicular Technology2012，61，16： | 1 |
| 4 | Changing Features of Sunshine Duration and Effects on Greenhouse Production in Shouguang City显示文摘Based on data of monthly sunshine duration in Shouguang City during 1961-2013,changing features of sunshine duration and effects on greenhouse production in Shouguang City were analyzed by using linear tendency method,M-K mutation test and Molet wavelet analysis. The results show that in Shouguang City,sunshine duration in a year and each season reduced obviously from 1961 to 2013,and sunshine duration in a year and autumn changed suddenly in the 1990s,while sunshine duration in winter and spring changed suddenly in the 1980s. There existed obvious periodic variations of sunshine duration in a year and various seasons from 1961 to 2013. The reduction of sunshine duration and the increase of cloudy days resulted in the decrease in the yield of crops in solar greenhouses,so some effective measures should be taken to enhance the light intensity and time in solar greenhouses to promote crop growth. | Wang Xiaoli Yan Fengjun Wang Tianru Xu Tai an Lu Dan Zhang Xiuzhen | 2016 | Meteorological and Environmental Research2016，7，6： | 1 |
| 5 | Study on Luster of Fabrics with Goniophotometric Curves显示文摘The distribution of the light reflected from various fabric surfaces was studied. A series of samples of different fibers, weaves and colors were investigated. The experiments show that the goniophotometric curves of fabrics change with constituent fibers, weave, dyeing and finishing, and experimental condition.The goniophotometric curves for fabrics of same kind with different colors are same in general shape, and the reflectance or the height of the curves are changed to the extent of that they are in proportion with the brightness or the tristimulus value Y of the samples. The goniophotometric curve also varies in form when the incident angle is changed. Discussion and explanation for the above mentioned are given. Luster of the samples was calculated with methods suggested by different indexing systems. | Shi Fengjun(石风俊) Yan Haojing(严灏景) | 2001 | Journal of Donghua University(English Edition)2001，18，1： | 1 |
| 6 | Effect of intracranial hypertension on cerebral hemorrhage induced autonomic nerve imbalance显示文摘BACKGROUND: Cerebral hemorrhage can cause the imbalance of nerve function, whereas its mechanism and main impact factors are still not quite clear. OBJECTIVE: To explore the rules about the changes of intracranial pressure in brainstem hemorrhage and internal capsule hemorrhage, and analyze the role of intracranial hypertension in the changes of nerve function caused by cerebral hemorrhage. DESIGN: A self-controlled trial. SETTING: Department of Physiology, Tianjin Medical University. MATERIALS: Sixty-five healthy male Japanese white rabbits with long ears (1.5–1.8 kg) were supplied and fed by the Department of Animal Experiment of Tianjin Medical University. The RM6240B biological signal collecting and processing system was used. METHODS: The experiments were conducted in the Department of Physiology, Tianjin Medical University from August 2001 to May 2006. ① The rabbits were anesthetized, then fixed onto the brain stereotaxic apparatus, and afterwards fenestration on skull and intubation to lateral ventricle were performed.The dynamic changes of intracranial pressure were monitored continuously. Rabbits were infused with autologous arterial blood (0.3 mL) into midbrain corpora quadrigemina inferior colliculus to induce model of acute brainstem hemorrhage; models of internal capsule hemorrhage were established by infusing autologous arterial blood into internal capsule. ② The dynamic intracranial pressures under the above conditions were recorded continuously with the RM6240B biological signal collecting and processing system. ③ An animal model of persistent intracranial hypertension was established by infusion of physiologic saline into lateral ventricle. ④ The changes of the intensity of autonomic nerve discharge were analyzed, using the biological signal collecting and processing system before and after hemorrhage and under persistent intracranial hypertension. ⑤ Ten animal models of internal capsule hemorrhage and 10 of brainstem hemorrhage were selected respectively, then gross pathological samples were cut open, and the accuracy of hemorrhage models was affirmed. Histological sections in hemorrhage point and around this point were prepared for with hematoxylin and eosin staining, and the pathological changes were observed under light microscope. MAIN OUTCOME MEASURES: ① Changes of intracranial pressures before and after internal capsule hemorrhage and brainstem hemorrhage; ② Changes of the discharge intensity of cervical vagus nerve trunk in animal models of internal capsule hemorrhage, brainstem hemorrhage and persistent intracranial hypertension without hemorrhage; ③ Accuracy of location of internal capsule hemorrhage and brainstem hemorrhage confirmed by gross pathological samples and sections. RESULTS: Totally 65 rabbits were involved in the analysis of results. ① Dynamic state of intracranial pressure: Intracranial pressure increased obviously at 45 minutes after internal capsule hemorrhage and brainstem hemorrhage, the intracranial pressures were (1.31±0.30), (1.82±0.45) kPa, which were obviously higher than those before hemorrhage [(1.04±0.18), ( 1.05±0.19) kPa, P < 0.01]. ② Discharge of vagus nerve: Under intracranial hypertension, the discharge of cervical vagus nerve trunk was enhanced, and the discharge intensity of vagus nerve trunk was significantly different before and after persistent intracranial hypertension [(364.28±78.55), (1252.19±151.75) μV·s, P < 0.01]. The discharges of cervical vagus nerve trunk were significantly enhanced after internal capsule hemorrhage and brainstem hemorrhage (P < 0.01). ③ Validation of hemorrhage sites: The hemorrhage sites were internal capsule and brainstem on histopathological sections. CONCLUSION: Intracranial pressure may play an important role in the pathophysiological process of vagus nerve imbalance caused by cerebral hemorrhage. | Xuelong Jin Wenli Jing Fengxia Yan Zhaoqiang Zhang Fengjun Lǚ Shuiqing Jing Na Sun Kazushige Mizoguchi | 2007 | Neural Regeneration Research2007，2，3： | 0 |
| 7 | Stem cell properties and neural differentiation of sheep amniotic epithelial cells显示文摘This study was designed to verify the stem cell properties of sheep amniotic epithelial cells and their capacity for neural differentiation. Immunofluorescence microscopy and reverse transcription-PCR revealed that the sheep amniotic epithelial cells were positive for the embryonic stem cell marker proteins SSEA-1, SSEA-3, SSEA-4, TRA-1-60 and TRA-1-81, and the totipotency-associated genes Oct-4, Sox-2 and Rex-1, but negative for Nanog. Amniotic epithelial cells expressed β-III-tubulin, glial fibrillary acidic protein, nestin and microtubule-associated protein-2 at 28 days after induction with serum-free neurobasal-A medium containing B-27. Thus, sheep amniotic epithelial cells could differentiate into neurons expressing β-III-tubulin and microtubule-associated protein-2, and glial-like cells expressing glial fibrillary acidic protein, under specific conditions. | Xuemin Zhu Xiumei Wang Guifang Cao Fengjun Liu Yinfeng Yang Xiaonan Li Yuling Zhang Yan Mi Junping Liu Lingli Zhang | 2013 | Neural Regeneration Research2013，8，13： | 0 |
| 8 | Newcastle disease virus suppresses antigen presentation via inhibiting IL-12 expression in dendritic cells显示文摘As a potential vectored vaccine,Newcastle disease virus(NDV)has been subject to various studies for vaccine development,while relatively little research has outlined the immunomodulatory effect of the virus in antigen presentation.To elucidate the key inhibitory factor in regulating the interaction of infected dendritic cells(DCs)and T cells,DCs were pretreated with the NDV vaccine strain LaSota as an inhibitor and stimulated with lipopolysaccharide(LPS)for further detection by enzyme-linked immunosorbent assay(ELISA),flow cytometry,immunoblotting,and quantitative real-time polymerase chain reaction(qRT-PCR).The results revealed that NDV infection resulted in the inhibition of interleukin(IL)-12p40 in DCs through a p38 mitogen-activated protein kinase(MAPK)-dependent manner,thus inhibiting the synthesis of IL-12p70,leading to the reduction in T cell proliferation and the secretion of interferon-(IFN-),tumor necrosis factor-α(TNF-α),and IL-6 induced by DCs.Consequently,downregulated cytokines accelerated the infection and viral transmission from DCs to T cells.Furthermore,several other strains of NDV also exhibited inhibitory activity.The current study reveals that NDV can modulate the intensity of the innate-adaptive immune cell crosstalk critically toward viral invasion improvement,highlighting a novel mechanism of virus-induced immunosuppression and providing new perspectives on the improvement of NDV-vectored vaccine. | Fulong NAN Wenlong NAN Xin YAN Hui WANG Shasha JIANG Shuyun ZHANG Zhongjie YU Xianjuan ZHANG Fengjun LIU Jun LI Xiaoqiong ZHOU Delei NIU Yiquan LI Wei WANG Ning SHI Ningyi JIN Changzhan XIE Xiaoni CUI He ZHANG Bin WANG Huijun LU | 2024 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2024，25，3： | 0 |
| 9 | 超高真空环境中两个超薄碳膜之间的距离测量显示文摘The stability of the magnetic fields is crucial for the precision experiments conducted at the experimental Cooler Storage Ring CSRe.From 2016,sudden changes of dB=B>10−4 of CSRe dipole magnetic fields happened irregularly which made the precision mass measurements at CSRe difficult to proceed.Therefore,a monitoring system have been built and the instabilities of the power supply and field strengths of the CSRe dipole magnets have been investigated in 2017. | Yan Xinliang Wu Fengjun Yang Wenjie Wang Xiaojun Zhou Yunbin Wang Meng Zhou Xu Zhang Min Gao Daqing An Shi Yuan Youjin Zhang Yuhu | 2017 | IMP & HIRFL Annual Report2017，，1： | 0 |
| 10 | System Variable Analysis on Development Stages of Urban Agriculture in Large Cities显示文摘China's urban agricultural development takes on stage evolution,and functional structure,customer structure,industrial organization,innovation activity,spatial form and industrial value of each stage has significant difference. Using the system variable analysis method,this paper established the urban agricultural development system including six types of functional variables. On the basis of summarizing stage characteristics,it analyzed reasons for stage characteristics focusing on four key variables,i. e. cost,efficiency,connection,and risk. Finally,it came up with recommendations for promoting China's urban agricultural development with the aid of stage development rules. | Min ZHANG Fengjun LU Runlian MIAO Yan JIN | 2014 | Asian Agricultural Research2014，6，11： | 0 |
| 11 | Point-defect-driven flattened polar phonon bands in fluorite ferroelectrics显示文摘The scale-free ferroelectric polarization of fluorite MO_(2)(M=Hf,Zr)due to flat polar phonon bands are promising for nonvolatile memories.Defects are also widely introduced to improve the emergent ferroelectricity.However,their roles are still not fully understood at the atomic-level.Here,we report a significant effect of point-defect-driven flattening of polar phonon bands with more polar modes and polarization contribution in doped MO_(2).The polar phonon bands in La-doped MO_(2)(M=Hf,Zr)can be significantly flattened,compared with pure ones.However,the lower energy barrier with larger polarization of VO-only doped MO_(2) compared with La-doped cases suggest that VO and local lattice distortion should be balanced for high-performance fluorite ferroelectricity.The work is believed to bridge the relation between point defects and the generally enhanced induced ferroelectricity in fluorite ferroelectrics at the atomic-level and inspire their further property optimization via defect-engineering. | Pu Ai Fengjun Yan Wen Dong Shi Liu Junlei Zhao Kan-Hao Xue Syed Ul Hasnain Bakhtiar Yilong Liu Qi Ma Ling Miao Mengyuan Hua Guangzu Zhang Shenglin Jiang Wei Luo Qiuyun Fu | 2023 | npj Computational Materials2023，，1： | 0 |
| 12 | Progress of Power Supply System in 2019显示文摘In order to cooperate with the installation and operation of SSC-Linac in 2019,the HIRFL-SSC power system for beam line was updated.The modification includes the update of 148 power supplies in SSC front and rear beam lines. | Gao Daqing Wu Fengjun Yan Hongbin | 2019 | IMP & HIRFL Annual Report2019，，1： | 0 |
| 13 | The Interannual and Interdecadal Variations of Tropical Cyclone Affecting Shandong Province显示文摘Based on tropical cyclone yearbook data from 1949 to 2006,climate characteristics,such as interdecadal variation,period of tropical cyclone frequency,rainstorm and strong wind,intensity characteristics,were analyzed. Main results were as follows: tropical cyclone affecting Shandong Province was mainly from the last ten-day of July to the last ten-day of August,and its interdecadal variation was obvious. The marked periodic variation of every 2. 4 and 5 years was found according to power spectrum analysis. It showed obvious weakening tendency about tropical cyclone's intensity by using Kendall test. It also showed that August was the strongest month among a year for rainstorm frequency and intensity,and flood disaster was more easily to occur during this month. It was distinct for frequency's interdecadal variation of tropical cyclone causing rainstorm and strong wind. Marked period was existed about annual average precipitation and strong wind. At the same time,the cause of the variation was discussed. | Gao Xiaomei Wang Lingjun Ma Jinsong Yan Fengjun Xu Guihua Han Xiao Su Lili | 2014 | Meteorological and Environmental Research2014，5，12： | 0 |
| 14 | A study on hot deformation behaviour of alloy Monel K-500显示文摘Thermal simulation tests were conducted at different deformation temperatures and degrees by a Gleeble simulator.The results show that the alloy has higher resistance to deformation;with an increase of the deformation temperature,the alloy's flow stress and maximum value decrease;with an increase of the deformation degree,both the initial recrystallization temperature and the complete recrystallization temperature decrease sharply.When the deformation degree reaches 30%,60% and 80%,the initial recrystallization temperature is around 950℃,850℃ and 800℃,the complete recrystallization temperature is around 1 100℃,1 050℃ and 1 000℃ respectively.When the deformation temperature is higher than 1100℃,the deformation degree increases and the re-crystalized grains are significantly refined.The forging process parameters were established according to the regular pattern mentioned above.The microstructure of the bar forged in this pattern is uniform and the result is satisfying. | DING Yan,WANG Qingzeng,LIU Fengjun and CHEN Guosheng Special Steel Business Unit,Baoshan Iron & Steel Co.,Ltd.,Shanghai 200940,China | 2012 | Baosteel Technical Research2012，6，1： | 0 |
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