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| 1 | Numerical Simulation of Nonlinear Three-Dimensional Waves in Water of Arbitrary Varying Topography显示文摘—The numerical simulation is based on the authors'high-order models with a dissipative termfor nonlinear and dispersive wave in water of varying depth.Corresponding finite-difference equations andgeneral conditions for open and fixed natural boundaries with an arbitrary reflection coefficient and phaseshift are also given in this paper.The systematical tests of numerical simulation show that the theoreticalmodels,the finite-difference algorithms and the boundary conditions can give good calculation results forthe wave propagating in shallow and deep water with an arbitrary slope varying from gentle to steep. | Hong, Guangwen Zhang, Hongsheng Feng, Weibing | 1998 | China Ocean Engineering1998，13，4： | 10 |
| 2 | The effect of nanohybrid materials on the pour-point and viscosity depressing of waxy crude oil显示文摘The pipeline transportation of waxy crude oil is a problem both at home and abroad.In this paper,a novel nanohybrid pour-point depressant (PPD) was used to decrease the pour point and viscosity of waxy crude oil.The pour point and apparent viscosity of waxy crude oil was decreased significantly upon addition of the nanohybrid PPD,and the long-term stability of the nanohybrid PPD was superior to that of a conventional ethylene-vinyl acetate copolymer PPD.Polarized optical microscopy and X-ray diffraction were used to study the effect of the nanohybrid PPD on the crystallization of crude oil.Addition of the nanohybrid PPD reduced the amount of wax crystals,prevented their aggregation,and reduced the temperature at which the crude oil started to crystallize.The significant effect of this nanohybrid PPD on the pour point and viscosity depressing of crude oil is of great importance for facilitating the safe,efficient and energy-minimized transportation of waxy crude oil. | WANG Feng ZHANG DongMin DING YanFen ZHANG LiXin YANG MingShu JIANG BaoLiang ZHANG ShiMin AI MuYang LIU GuangWen ZHI ShuJie HUO LianFeng OUYANG Xin LI Li | 2011 | Chinese Science Bulletin2011，56，1： | 9 |
| 3 | Reaction decoupling in thermochemical fuel conversion and technical progress based on decoupling using fluidized bed显示文摘Thermochemical conversion of fuels via pyrolysis/carbonization,cracking,gasification and combustion has to involve a number of individual reactions called attribution reactions to form an intercorrelated reaction network for any conversion process.By separating one or some attribution reactions from the others to decouple their interactions existing in the reaction network,the so-called reaction decoupling enables a better understanding of the complex thermal conversion process and further the optimization of the conditions for attribution reactions as well as the entire conversion process to realize advanced performances.The dual bed conversion and two-stage conversion are the two representative types of fuel conversion technologies developed in recent years based on reaction decoupling.Many technical advantages have been proven for such decoupling fuel conversion technologies,such as poly-generation of products,low-cost production of high-grade products,elimination of undesirable products or pollutants,easy operation and control,and so on.The treated fuels with decoupling conversion technologies mainly include solid biomass and coal,as well as liquid petroleum oil.This paper is devoted to reiteration of the reaction decoupling concept and further to reviewing the research,developments and successful applications of several decoupling fuel conversion technologies of two such types by using fluidized bed as their major reactors. | Zhennan Han Sulong Geng Xi Zeng Shipei Xu a Ping An Jiguang Cheng Jun Yang Feng Li Suyi Zhang Miao Liu Guoqing Guan Guangwen Xu | 2018 | Carbon Resources Conversion2018，1，2： | 8 |
| 4 | Theoretical Model and Random Simulation for Nonlinear Interaction of Irregular Waves with Vertical Wall显示文摘According to the theoretical solutions for the nonlinear three-dimensional gravity surface waves and their interactions with vertical wall previously proposed by the lead author, in this paper an exact second-order random model of the unified wave motion process for nonlinear irregular waves and their interactions with vertical wall in uniform current is formulated, the corresponding theoretical nonlinear spectrum is derived, and the digital simulation model suitable to the use of the FFT (Fast Fourier Tansform) algorithm is also given. Simulations of wave surface, wave pressure, total wave pressure and its moment are performed. The probability properties and statistical characteristics of these realizations are tested, which include the verifications of normality for linear process and of non-normality for nonlinear process; the consistances of the theoretical spectra with simulated ones; the probability properties of apparent characterstics, such as amplitudes, periods, and extremes (maximum and minimum, positive and negative extremes). The statistical analysis and comparisons demonstrate that the proposed theoretical and computing models are realistic and effective, the estimated spectra are in good agreement with the theoretical ones, and the probability properties of the simulated waves are similar to those of the sea waves. At the same time, the simulating computation can be completed rapidly and easily. | Hong, Guangwen Feng, Weibing | 1993 | China Ocean Engineering1993，8，3： | 3 |
| 5 | Structure and Cleavage Specificity of the Chymotrypsin-Like Serine Protease (3CLSP/nsp4) of Porcine Reproductive and Respiratory Syndrome Virus (PRRSV)显示文摘 | Xinsheng Tian Guangwen Lu Feng Gao Hao Peng Youjun Feng Guangpeng Ma Mark Bartlam Kegong Tian Jinghua Yan Rolf Hilgenfeld George F. Gao | 2009 | Journal of Molecular Biology2009，，4： | 1 |
| 6 | Sulfur poisoning resistant mesoporous Mn-base catalyst for low-temperature SCR of NO with NH3显示文摘 | Yu Jian Guo Feng Wang Yingli Zhu Jianhong Liu Yunyi Su Fabing Gao Shiqiu Guangwen Xu | | 0，，： | 1 |
| 7 | Numerical simulation of gas–liquid flow in the bubble column using Wray–Agarwal turbulence model coupled with population balance model显示文摘In this paper,an improved computational fluid dynamic(CFD)model for gas-liquid flow in bubble column was developed using the one-equation Wary-Agarwal(WA)turbulence model coupled with the population balance model(PBM).Through 18 orthogonal test cases,the optimal combination of interfacial force models,including drag force,lift force,turbulent dispersion force.The modified wall lubrication force model was proposed to improve the predictive ability for hydrodynamic behavior near the wall of the bubble column.The values simulated by optimized CFD model were in agreement with experimental data,and the errors were within±20%.In addition,the axial velocity,turbulent kinetic energy,bubble size distribution,and the dynamic characteristic of bubble plume were analyzed at different superficial gas velocities.This research work could provide a theoretical basis for the extension of the CFD-PBM coupled model to other multiphase reactors.. | Hongwei Liang Wenling Li Zisheng Feng Jianming Chen Guangwen Chu Yang Xiang | 2023 | Chinese Journal of Chemical Engineering2023，58，6： | 1 |
| 8 | Application of Laser Mut at ion Technology in Biology Breeding显示文摘 | Feng Guangwen Cheng Hao XU Hui | 2007 | Acta Laser Biology Sinica2007，44，5： | 1 |
| 9 | Human circulating microRNA-1 and microRNA-126 as potential novel indicators for acute myocardial infarction显示文摘 | Guangwen Long Feng Wang Quanlu Duan | 2012 | International Journal biological Sciences2012，8，6： | 1 |
| 10 | Prominent genetic structure across native and introduced ranges of Pluchea indica, a mangrove associate, as revealed by microsatellite markers显示文摘阔苞菊(Pluchea indica)是一种红树林伴生植物,以其在原产地的药用特性和部分引入地的入侵性而闻名。本研究旨在评估阔苞菊在其分布范围内遗传变异的地理分布,确定影响其遗传结构的因素,并利用这些信息对阔苞菊在原产地和引入地的保护和管理策略提出建议。我们以来自阔苞菊原产地(亚洲)和引入地(美国)的31个种群共348个个体的15个核微卫星位点数据对阔苞菊的遗传多样性和种群结构进行了评估。在大尺度范围以及局部区域两种空间尺度上对阔苞菊遗传变异的空间格局进行了探讨,并验证了以下假说:地理距离和自然地理屏障将影响种群结构并在空间尺度上产生不同程度的分化。研究结果表明,与所研究区域内的其它红树林物种的遗传多样性参数相比,我们发现阔苞菊在种群水平上具有相对较高的遗传多样性以及在物种水平上具有明显的遗传分化。大多数阔苞菊种群显示杂合子缺失,这主要是由于近交和有限的基因流所导致。在较大空间尺度上进行的种群结构分析显示,该物种自然分布范围内存在两个主要遗传谱系,中国的种群与印度尼西亚、马来西亚、新加坡、泰国、柬埔寨和菲律宾的种群分别属于不同的谱系,而美国的种群可能来自于中国的谱系。此外,在局部区域范围内也同样检测到种群之间的遗传分化。大部分阔苞菊种群所表现出的遗传瓶颈效应强调了其具有本地灭绝的风险。基于上述研究结果,我们建议采用原位保护策略对阔苞菊进行管理,并开展对优先保护种群的保护行动以维持遗传多样性。 | Yuting Lin Achyut Kumar Banerjee Haidan Wu Fengxiao Tan Hui Feng Guangwen Tan Wuxia Guo Yelin Huang | 2020 | Journal of Plant Ecology2020，13，3： | 0 |
| 11 | APPLICATION OF BEAM SEARCH FOR THE DECODING OF ONE CLASS OF LDPC CODES显示文摘For one class of Low-Density Parity-Check(LDPC)codes with low row weight in theirparity check matrix,a new Syndrome Decoding(SD)based on the heuristic Beam Search(BS),labeledas SD-BS,is put forward to improve the error performance.First,two observations are made andverified by simulation results.One is that in the SNR region of interest,the hard-decision on thecorrupted sequence yields only a handful of erroneous bits.The other is that the true error pattern forthe nonzero syndrome has a high probability to survive the competition in the BS,provided sufficientbeam width.Bearing these two points in mind,the decoding of LDPC codes is transformed into seekingan error pattern with the known decoding syndrome.Secondly,the effectiveness of SD-BS dependsclosely on how to evaluate the bit reliability.Enlightened by a bit-flipping definition in the existingliterature,a new metric is employed in the proposed SD-BS.The strength of SD-BS is demonstrated viaapplying it on the corrupted sequences directly and the decoding failures of the Belief Propagation(BP),respectively. | Li Guangwen Feng Guangzeng | 2008 | Journal of Electronics(China)2008，25，4： | 0 |
| 12 | Gluconate 5-dehydrogenase (Ga5DH) participates in Streptococcus suis cell division显示文摘细菌的房间分割严格地在相等的女儿房间的形成被调整。这个过程被一系列空间、时间的管理者管理,并且这块地感兴趣的几个新因素最近被识别了。这里,我们在 zoonotic 病原体链球菌 suis 的房间分割报导 gluconate 5 脱氢酶(Ga5DH ) 的要求。Ga5DH 催化 5-ketogluconate 的可逆减小到 D-gluconate 并且对房间分割的地点局部性。在 S 的 Ga5DH 的删除。suis 与加入子孙的异常 septa 导致了丰满的形态学。重要增加也在房间长度被观察。这些缺点决心是在 S 的 Ga5DH 剥夺的后果。引起 FtsZ delocalization 的 suis。另外,有在 vitro 的 Ga5DH 的 FtsZ 的相互作用被蛋白质相互作用试金证实。这些结果显示 Ga5DH 可以工作在 S 期间阻止宫外的 Z 戒指的形成。suis 房间分割。 | Zhongyu Shi Chunling Xuan Huiming Han Xia Cheng Jundong Wang Youjun Feng Swaminath Srinivass Guangwen Lu George F. Gao | 2014 | Protein & Cell2014，5，10： | 0 |
| 13 | 在PACS与CT工作站测量恶性孤立肺结节大小及密度的对比研究(英文)显示文摘Objective: The aim of our study was to determine the efficiency and effectiveness of picture archiving and communication system(PACS) workstation in detecting the sizes and attenuation of malignant solitary pulmonary nodules(SPNs). Methods: Forty patients with malignant SPNs(diameter ≤ 3 cm) underwent multidetector-row computed tomography(CT) of the chest in a single-breath-hold technique. The raw data were acquired with a collimation of 0.625 mm. The diameters and attenuation of malignant SPNs were measured on PACS and CT workstation respectively. The diameter was defined as the average value of the anteroposterior, lateral and superoinferior diameters on CT scans obtained with a mediastinal window setting. The superoinferior diameters were measured on MPR image. The diameters and attenuation of malignant SPNs and spending time in measuring were recorded. Results: The diameters of malignant SPNs measured on a PACS and CT workstation were 2.09 cm ± 0.87 cm, 2.07 cm ± 0.79 cm, respectively. There was not statistically significant difference in the diameters of malignant SPNs between that measured on a PACS workstation and that on a CT workstation(t = 1.580, P = 0.210 > 0.05). The attenuation of malignant SPNs measured on a PACS and CT workstation were 40.15 HU ± 7.53 HU, 39.99 HU ± 8.13 HU, respectively. There was not statistically significant difference in the attenuation of malignant SPNs between that measured on a PACS workstation and that on a CT workstation(t = 1.008, P = 0.298 > 0.05). The spending time in measuring on a PACS and CT workstation were 55 s ± 4.03 s, 56 s ± 3.95 s, respectively. No statistically significant difference was found in spending time in measuring between that on a PACS workstation and that on a CT workstation(t = 0.958, P = 0.315 > 0.05). Conclusion: The efficiency and effectiveness of PACS workstation is as same as those of CT workstation in detecting the sizes and attenuation of malignant SPNs. It is suggested that the size and attenuation of malignant SPNs are measured on a PACS and CT workstation. | Shenjiang Li Cui Li Guangwen Jv Wenjie Liang Changcheng Li Debin Liu Feng Zhu Yan Zhu Xuefeng Cui Liguang Zheng | 2014 | The Chinese-German Journal of Clinical Oncology2014，13，1： | 0 |
| 14 | 消化系统肿瘤CT随访中发现的肝脏高灌注异常的转归(英文)显示文摘Objective: The aim of this study was to investigate progression of hepatic hyperperfusion disorders revealed during follow-up contrast material-enhanced multi-slice spiral computed tomography(MSCT) scan of digestive system neoplasm. Methods: Three-phase contrast material-enhanced MSCT were performed during the follow-up in patients with digestive system malignant tumor confirmed histologically. The progression of hepatic hyperperfusion disorders revealed on contrast material-enhanced CT image were investigated at the 2 years follow-up with approximately 6 months interval. Results: The hepatic hyperperfusion disorders were showed in 39 patients on follow-up contrast material-enhanced MSCT scans. Among the 39 patients, initial hyperperfusion disorders were revealed in 6(15.38%), 26(66.67%), and 7(17.95%) patients in 6, 12, and 18 months during follow-up respectively. The initial hyperperfusion disorders revealed in 12 months were more frequent than those revealed in 6 months(χ2 = 14.82, P < 0.05) and 18 months(χ2 = 15.02, P < 0.05). Among the 39 patients, the hyperperfusion disorders progressed into liver metastasis based on typical CT findings in 37(94.87%) patients, and were not obvious changes in 2(5.13%) patients. Among the 37 patients, the hyperperfusion disorders progressed into metastasis in 10(25.64%) patients in 6 months after the hyperperfusion disorders were revealed, and in 27(69.23%) patients in 12 months. The hyperperfusion disorders developing into metastasis were more in 12 months than those in 6 months(χ2 = 14.98, P < 0.05). Conclusion: Most hepatic hyperperfusion disorders revealed at the follow-up of digestive system neoplasm may be early manifestations of liver metastasis. The careful follow-up of hepatic hyperperfusion disorders is necessary. | Shenjiang Li Wenjie Liang Guangwen Ju Cui Li Changcheng Li Debin Liu Feng Zhu Yan Zhu Xuefeng Cui Liguang Zheng | 2014 | The Chinese-German Journal of Clinical Oncology2014，13，1： | 0 |
| 15 | In-situ growth of heterophase Ni nanocrystals on graphene for enhanced catalytic reduction of 4-nitrophenol显示文摘Generating heterophase structures in nanomaterials,e.g.,heterophase metal nanocrystals,is an effective way to tune their physicochemical properties because of their high-energy nature and unique electronic environment of the generated interfaces.However,the direct synthesis of heterophase metal nanocrystals remains a great challenge due to their unstable nature.Herein,we report the in situar direct synthesis of heterophase Ni nanocrystals on graphene.The heterostructure of face-centered cubic(fee)and hexagonal close-packed(hep)phase was generated via the epitaxial growth of hep Ni and the partial transformation of fee Ni and stabilized by the anchoring effect of graphene toward fee Ni nanocrystal and the preferential adsorption of surfactant polyethylenimine(PEI)toward epitaxial hep Ni.Comparing with the fee Ni nanocrystals grown on graphene,the heterophase(fcc/hcp)Ni nanocrystals in situ grown on graphene showed a greatly improved catalytic activity and reusability in 4-nitrophenol(4-NP)reduction to 4-aminophenol(4-AP).The measured apparent rate constant and the activity parameter were 2.958 min^(-1) and 102 min^(-1)·mg^(-1),respectively,higher than that of the best reported non-noble metal catalysts and most noble metal catalysts.The control experiments and density functional theory calculations reveal that the interface of the fee and hep phases enhances the adsorption of substrate 4-NP and thus facilitates the reaction kinetics.This work proves the novel idea for the rational design of heterophase metal nanocrystals by employing the synergistic effect of surfactant and support,and also the potential of creating the heterostructure for enhancing their catalytic reactivity. | Jiahao Zhuang Feng He Xianglin Liu Pengchao Si Fangna Gu Jing Xu Yu Wang Guangwen Xu Ziyi Zhong Fabing Su | 2022 | Nano Research2022，15，2： | 0 |
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