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Search Results: 1 - 10 of 32777 matches for " PENG Bin. "
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Big Data in Chinese Government Governance: Analysis of Decision-Making Model Innovation and Practice  [PDF]
Peng Wang, Bin Lu
Journal of Computer and Communications (JCC) , 2018, DOI: 10.4236/jcc.2018.612013
Abstract:
The 19th National Congress of the Communist Party of China has put forward higher requirements for Chinese government governance. The government governance has developed to a higher stage. Meanwhile, it faces more challenges, like lack of top-level design and information sharing. To develop a government governance decision-making innovation model, we should make good use of big data to mine in the grassroots government data management network. Both the characteristics of the times and the experience of the practice have proven that big data can empower government governance and promote the construction of a service-oriented government.
Medical Image Fusion Based on Wavelet Multi-Scale Decomposition  [PDF]
Huiping Zhu, Bin Wu, Peng Ren
Journal of Signal and Information Processing (JSIP) , 2013, DOI: 10.4236/jsip.2013.42029
Abstract: This paper describes a method to decompose multi-scale information from different source medical image using wavelet transformation. The data fusion between CT image and MRI image is implemented based on the coefficients fusion rule which included choice of regional variance and weighted average wavelet information. The result indicates that this method is better than WMF, LEF and RVF on fusion results, details and target distortion.
Sepsis-related stress response: known knowns, known unknowns, and unknown unknowns
Jinmin Peng, Bin Du
Critical Care , 2010, DOI: 10.1186/cc9103
Abstract: In this issue of Critical Care, Lesur and colleagues [1] report the differential profile of stress response in septic and non-septic patients. Adrenocorticotropic hormone (ACTH) and ACTH/cortisol ratio were lower whereas baseline cortisol, procalcitonin (PCT), and stromal cellderived factor-1-alpha (SDF-1α) were higher in septic patients than in non-septic patients. Furthermore, a probability score incorporating ACTH, cortisol, and PCT by multivariate logistic regression analysis predicted sepsis better than sepsis score or PCT did [1].The response of hypothalamic-pituitary-adrenal (HPA) axis to the sustained stress of severe illness has been the focus of many studies in recent years. In healthy subjects, cortisol secretion by adrenal cortex is regulated by ACTH secretion by the pituitary, which in turn is regulated primarily by hypothalamic secretion of corticotropinreleasing hormone (CRH), whereas cortisol inhibits both ACTH and CRH production through a negative feedback [2-4].However, HPA stress response during sepsis is much more complex and is poorly defined. Plasma cortisol levels may be low, normal, or high in sepsis [2,5] but nonetheless inadequate to control the inflammatory response and meet the elevated metabolic demand [5]. This effect is termed relative adrenal insufficiency (RAI), also known as critical illness-related corticosteroid insufficiency (CIRCI) [2,3,6].Other factors are involved in the HPA stress response during sepsis [6,7]. In rodent models, arginine vasopressin (AVP) was shown to increase endogenous adrenal ACTH secretion [7]. Apelin, a neuropeptide originating from paraventricular and supraopitc nuclei, acts on HPA axis regulation by releasing CRH and ACTH and by reducing AVP [7]. Copeptin, a 39-amino acid glycopeptide, makes up the pre-pro-vasopressin molecule together with neurophysin II and AVP and serves as a surrogate marker to assess AVP plasma concentrations in septic shock [8]. In normal rats, the chemokine SDF-1α and its recepto
In vitro angiogenesis and expression of nuclear factor κB and VEGF in high and low metastasis cell lines of salivary gland Adenoid Cystic Carcinoma
Jiali Zhang, Bin Peng
BMC Cancer , 2007, DOI: 10.1186/1471-2407-7-95
Abstract: Electrophoretic mobility shift assay was used to detect nuclear factor κappa B activity. Semi-quantitative RT-PCR was used to quantify the mRNA level of VEGF. Immuofluorescence double staining and semi-quantitative confocal laser scanning analysis was carried out to detect nuclear factor κappa B nuclear localization and staining intensity of VEGF. The angiogenesis ability of ACC-M and ACC-2 was compared by an in vitro three-dimensional angiogenic model assay. The vector transfection assay was performed to transfect the PCMV-IκBαM vector into ACCs cell lines expressing the phosphorylation defective IκBαM.Nuclear factor κappa B activity and the rate of nuclear factor κappa B nuclear localization in ACC-M was significantly higher than that in ACC-2. Moreover, ACC-M exhibited higher mRNA and protein levels of vascular endothelial growth factor than ACC-2. VEGF mRNA expression was effectively decreased by inhibition of nuclear factor κappa B activity. Furthermore, ACC-M could remarkably stimulate the migration and tube formation of endothelial cells and induce The umbilical vein endothelial cells sprouting into the gel matrix.These results implicated that ACCs cells with higher metastasis feature might present greater angiogenesis ability.Adenoid cystic carcinoma of salivary glands (ACCs) is a high malignant carcinoma characterized by intensive local invasion and insidious distant metastasis to the lung at an early stage, which is responsible for a poor long-term survival rate [1]. Although reasons of the invasiveness and aggressive metastatic dissemination of ACCs remain unclear, angiogenesis might be a possible involving mechanism [2]. Our previous study showed that the ACCs histological type which presented high metastasis tendency exhibited higher microvessel density levels and more intensive expression of angiogenic related factors [3].Angiogenesis, the development of new blood vessels from the pre-existing vascular beds, is an essential pathophysiologic event occur
Precise orbit determination for Jason-1 satellite using on-board GPS data with cm-level accuracy
DongJu Peng,Bin Wu
Chinese Science Bulletin , 2009, DOI: 10.1007/s11434-008-0513-0
Abstract: The joint US/French Jason-1 satellite altimeter mission, launched from the Vandenberg Air Force Base on December 7, 2001, continues the time series of centimeter-level ocean topography observations as the follow-on to the highly successful T/P radar altimeter satellite. Orbit error especially the radial orbit error is a major component in the overall budget of all altimeter satellite missions, in order to continue the T/P standard of observations. Jason-1 has a radial orbit error budget requirement of 2.5 cm. In this work, two cycles (December 19, 2002 to January 7, 2003) of the Jason-1 on-board GPS data were processed using the zero-difference (ZD) dynamic precise orbit determination (POD) technique. The resulting Jason-1 orbit accuracy was assessed by comparison with the precise orbit ephemeris (POE) produced by JPL, orbit overlaps and SLR residuals. These evaluations indicate that the RMS radial accuracy is in the range of 1–2 cm.
Zero-difference and single-difference precise orbit determination for LEO using GPS
DongJu Peng,Bin Wu
Chinese Science Bulletin , 2007, DOI: 10.1007/s11434-007-0264-3
Abstract: Various methods for precise orbit determination (POD) of low earth orbiters (LEO) are briefly introduced in this paper. Based on the software named SHORD-III developed by our institute, single-difference (SD) and zero-difference (ZD) dynamic POD based on LEO carrying an on-board GPS receiver is mainly discussed. The approaches are tested using real GRACE data (November 5–25, 2002) and independently validated with Satellite Laser Ranging (SLR) measurements over the same 21 days. Comparisons with the scientific orbits provided by GFZ indicate that the SD POD RMS accuracy can achieve 5, 10 and 6 cm in radial, along and cross the track, and the ZD POD RMS accuracy can achieve 4, 8 and 4 cm in radial, along and cross the track. SLR validation shows that SD POD accuracy is better than 8 cm in distance, and ZD POD accuracy is better than 6 cm.
Establishment of Real-Time Fluorescent PCR Method for Detection of D Epizootic Hemorrhagic Disease of Deer  [PDF]
Bin Wu, Chao Wan, Liming Su, Peng Guan
Advances in Microbiology (AiM) , 2018, DOI: 10.4236/aim.2018.87032
Abstract: Epizootie hemorrhagic disease of deer virus (EHDV), is a member of the family Reoviridae virus (Orbi virus), and a double-stranded RNA virus from arthropods (mainly Culicoides), which is very similar in morphology and structure to Blue tongue virus (BTV). Serologically, there is a clear cross between the blue tongue virus and EHDV. EHD (caused by EHDV) is a seasonal, non-contact viral infectious disease. Under natural conditions, EHDV can cause infection of cattle, sheep and other domestic animals as well as many domesticated and wild ruminants such as white tail deer, Mi, large horned antelope and so on. The virus has been isolated from white-tailed deer, black-tailed deer, sheep, goats, cattle, bison and Culicoides. White tail deer infection is the most serious, and clinical characteristics are transient elevated body temperature, symptoms of shock, mucosal, serous bleeding and death in a coma [1]. At present, there is no effective vaccine and treatment for this disease. To control and eliminate EHD, it is necessary to spend a lot of manpower and material resources. Export trade is restricted, which brings great economic losses to the countries with EHD epidemic. Moreover, because of the complexity of antigen structure and the diversity of clinical symptoms of EHDV, it is difficult to diagnose in laboratory. Therefore, developing a quick and precise laboratory diagnostic method becomes more and more significant among researchers.
Precise orbit determination for Jason-1 satellite using on-board GPS data with cm-level accuracy

PENG DongJu &,WU Bin,

科学通报(英文版) , 2009,
Abstract: The joint US/French Jason-1 satellite altimeter mission, launched from the Vandenberg Air Force Base on December 7, 2001, continues the time series of centimeter-level ocean topography observations as the follow-on to the highly successful T/P radar altimeter satellite. Orbit error especially the radial orbit error is a major component in the overall budget of all altimeter satellite missions, in order to continue the T/P standard of observations. Jason-1 has a radial orbit error budget requirement of 2.5 cm. In this work, two cycles (December 19, 2002 to January 7, 2003) of the Jason-1 on-board GPS data were processed using the zero-difference (ZD) dynamic precise orbit determination (POD) technique. The resulting Jason-1 orbit accuracy was assessed by comparison with the precise orbit ephemeris (POE) produced by JPL, orbit overlaps and SLR residuals. These evaluations indicate that the RMS radial accuracy is in the range of 1–2 cm. Supported by the National Natural Science Foundation of China (Grant No. 40274006), High-tech Research and Development Program of China (Grant No. 2006AA12A107) and Science & Technology Commission of Shanghai Municipality (Grant No. 06DZ22101)
Retinal Ganglion Cells are Resistant to Photoreceptor Loss in Retinal Degeneration
Bin Lin, Edward Bo Peng
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0068084
Abstract: The rapid and massive degeneration of photoreceptors in retinal degeneration might have a dramatic negative effect on retinal circuits downstream of photoreceptors. However, the impact of photoreceptor loss on the morphology and function of retinal ganglion cells (RGCs) is not fully understood, precluding the rational design of therapeutic interventions that can reverse the progressive loss of retinal function. The present study investigated the morphological changes in several identified RGCs in the retinal degeneration rd1 mouse model of retinitis pigmentosa (RP), using a combination of viral transfection, microinjection of neurobiotin and confocal microscopy. Individual RGCs were visualized with a high degree of detail using an adeno-associated virus (AAV) vector carrying the gene for enhanced green fluorescent protein (EGFP), allowed for large-scale surveys of the morphology of RGCs over a wide age range. Interestingly, we found that the RGCs of nine different types we encountered were especially resistant to photoreceptor degeneration, and retained their fine dendritic geometry well beyond the complete death of photoreceptors. In addition, the RGC-specific markers revealed a remarkable degree of stability in both morphology and numbers of two identified types of RGCs for up to 18 months of age. Collectively, our data suggest that ganglion cells, the only output cells of the retina, are well preserved morphologically, indicating the ganglion cell population might be an attractive target for treating vision loss.
Dielectric dynamics of epitaxial BiFeO3 thin films
Peng Ren,Peng Liu,Bin Xia,Xi Zou
AIP Advances , 2012, DOI: 10.1063/1.4721670
Abstract: We report the detailed study on the low temperature dielectric dynamics of the epitaxial BiFeO3 thin films grown on Nb-doped SrTiO3 substrate. The results indicate that the contributions from the thin film dominate the dielectric response, although it comes from both the thin film and the electrode interface. Furthermore, the origins of the low temperature dielectric anomalies are investigated with electric circuit fittings. A possible phase transition at 210 K is revealed from analysis with dielectric loss tangent. The dielectric constants obtained from the constant phase elements (CPEs) are more than 400 even at low temperatures. Finally, the physical significances of the CPE model are discussed.
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