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Black Bridge: Scatternet Formation Algorithm for Solving a New Emerging Problem
Guo, Minyi,Yang, Yanqin,Zhang, Gongwei,Tang, Feilong,Shen, Yao Korea Information Processing Society 2009 Journal of information processing systems Vol.5 No.4
Nowadays, it has become common to equip a device with Bluetooth. As such devices become pervasive in the world; much work has been done on forming them into a network, however, almost all the Bluetooth Scatternet Formation Algorithms assume devices are homogeneous. Even the exceptional algorithms barely mentioned a little about the different characteristics of devices like computational abilities, traffic loads for special nodes like bridge nodes or super nodes, which are usually the bottleneck in the scatternet. In this paper, we treat the devices differently not only based on the hardware characteristics, but also considering other conditions like different classes, different groups and so on. We use a two-phase Scatternet Formation Algorithm here: in the first phase, construct scatternets for a specified kind of devices; in the second phase, connect these scatternets by using least other kinds of devices as bridge nodes. Finally, we give some applications to show the benefit of classification.
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Miao Xue,Yanqin Wu,Wenzhe Fan,Jian Guo,Jialiang Wei,Hongyu Wang,Jizhou Tan,Yu Wang,Wang Yao,Yue Zhao,Jiaping Li 대한암학회 2020 Cancer Research and Treatment Vol.52 No.3
Purpose This study aimed to investigate the clinicopathologic features and mutational landscape of patients with hepatitis B virus (HBV)–related advanced hepatocellular carcinomas (HCC) undergoing transcatheter arterial chemoembolization (TACE). Materials and Methods From January 2017 to December 2018, 38 patients newly diagnosed with HBV-related advanced HCC were enrolled in the final analysis. Their pathological tissues and corresponding blood samples before TACE treatment were collected for whole-exome sequencing. Response to TACE was evaluated at 1-3 months after two consecutive use of TACE. Predictive factors were analyzed by univariate and multivariate analyses in a bivariate Logistic regression model. Enrichment of related pathways of all driver genes were acquired using the gene set enrichment analysis (GSEA). Results Among 38 patients, 23 (60.5%) exhibited TACE failure/refractoriness. Patients with TACE failure/refractoriness showed higher frequency of TP53 mutation than their counterparts (p=0.020). Univariate and multivariate analyses showed that only vascular invasion and TP53mutation were significantly correlated with TACE failure/refractoriness in HBV-related advanced HCC. Of the 16 patients without vascular invasion, eight (50.0%) had TP53 mutations, and TP53mutation was associated with TACE failure/refractoriness (p=0.041). Moreover, GSEA showed that mitogen-activated protein kinase and apoptosis pathways induced by TP53 mutation were possibly associated with TACE failure/refractoriness. Conclusion Our study suggested that TP53 mutation was independently related with TACE efficacy, which may work via mitogen-activated protein kinase and apoptosis pathways. These findings may provide evidence to help distinguish patients who will particularly benefit from TACE from those who require more personalized therapeutic regimens and rigorous surveillance in HBV-related advanced HCC.
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Zengzan Zhu,Yun Guo,Yanglong Guo,Zhigang Zhang,Yanqin Wang,Guanzhong Lu 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.6
The properties and stabilities of Pd/Al2O3 close-coupled catalysts prepared with different methods and Pd precursors (PdCl2, Pd(NO3)2, and Pd(NH3)2(NO2)2) have been investigated, and characterized by N2adsorption at low temperature, H2 chemical adsorption, X-ray diffraction (XRD), H2 temperature programmed reduction (H2-TPR), transmission electron microscopy (TEM) and three-way catalytic activity testing. The results show that the catalyst prepared by a prefabricate method with Pd(NH3)2(NO2)2 precursor behaves higher catalytic activity and thermal stability for removing HC, CO and NOx, due to its higher BET surface area, higher Pd dispersion, smaller Pd particle sizes. And the prefabricate method can lead to stronger interaction between the Pd active species and the support by means of a strong electrostatic attraction and ion/ligand-exchange between the Pd complexes and the support surface, which restrict the remotion and sintering of Pd active particles at high temperature. Therefore, a prefabricate method is more suited to preparing close-coupled catalysts than a traditional impregnation method.
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Yongxia Miao,Xiaohui Liu,Yanglong Guo,Yanqin Wang,Yun Guo,Guanzhong Lu 한국공업화학회 2010 Journal of Industrial and Engineering Chemistry Vol.16 No.1
The MoO3/SiO2 catalysts containing different surface molybdenum species were prepared by a sol–gel method, and the effects of the preparation condition and MoO3 loading on the surface molybdenum species and property of MoO3/SiO2 were studied. The XRD, FT-IR, UV–vis and Raman spectroscopies were used to characterize the surface molybdenum species, and temperature-programmed desorption of NH3 adsorbed on a catalyst was used to detect the surface acidic properties. The results show that, therewere the dispersed polymolybdate, a-MoO3, b-MoO3, monomeric molybdenum species and silicomolybdic acid on the MoO3/SiO2 catalyst, and their distributions and subsistence states were affected by the preparation condition and MoO3 loading. Different molybdenum species exhibit different catalytic activities for the epoxidation of propylene with cumene hydroperoxide. In the 15 wt% MoO3/SiO2 catalyst synthesized at pH 9.1 and dried appropriately, there are the small size b-MoO3 and monomeric molybdenum species that they are mainly effective catalyst components for the epoxidation of propylene. Using this catalyst, the ~100% conversion of cumene hydroperoxide and ~100% selectivity to propylene oxide can be obtained in the tert-butyl alcohol solvent at 2.6 MPa and 80 8C for 4 h.
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Zheng Lin Zhao,Bong Hyo Lee,Feng Lin,YanQin Guo,Yi Yan Wu,Sang Mi Park,Sunghyeon In,Sang Chan Kim,Chae Ha Yang,Rong Jie Zhao 사단법인약침학회 2014 Journal of Acupuncture & Meridian Studies Vol.7 No.5
The current study investigated the effects of acupuncture at Zu-San-Li (ST36) on the hypothalamicepituitaryeadrenalaxis during ethanol withdrawal in rats. Rats were intraperitoneallytreated with 3 g/kg/day of ethanol or saline for 28 days. Following 24 hours ofethanol withdrawal, acupuncture was applied at bilateral ST36 points or non-acupoints(tail) for 1 minute. Plasma levels of corticosterone (CORT) and adrenocorticotropic hormone(ACTH) were measured by radioimmunoassay (RIA), and the corticotropin-releasingfactor (CRF) protein levels in the paraventricular nucleus of the hypothalamus were alsoexamined by RIA 20 minutes after the acupuncture treatment. RIA showed significantlyincreased plasma levels of CORT and ACTH in the ethanol-withdrawn rats compared withthe saline-treated rats, which were inhibited significantly by the acupuncture at the acupointST36 but not at the non-acupoint. Additionally, ethanol withdrawal promoted CRFprotein expressions in the paraventricular nucleus of the hypothalamus, which were alsoblocked by the acupuncture at ST36. These findings suggest that acupuncture at the specific acupoint ST36 can inhibit ethanol withdrawal-induced hyperactivation of hypothalamicepituitaryeadrenalaxis, and it may be mediated via the modulation of hypothalamicCRF.
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