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Based on the basic idea of deformation decomposition in the force analogy method (FAM), the section deformation is decomposed into elastic and plastic components and the plastic degrees of freedom are introduced. A nonlinear fiber beam element analysis method for building structures is presented through incorporating the FAM into the framework of fiber beam element. The initial stiffness matrix is used and the inelastic behavior of structure can be calculated by using the plastic stiffness matrix. The efficiency of nonlinear analysis is improved due to relatively small plastic stiffness matrix iteration such that the updating and factorization of tangent stiffness matrix of the classical finite element formulation are avoided during iteration process. The numerical results show that the presented method agrees well with the results by software ABAQUS, which verifies the effectiveness of proposed method. [ABSTRACT FROM AUTHOR]

In this paper, a nine-story reinforced concrete frame structure was adopted as example, and modeled by using a program named SAP2000. A series of ground motions were selected, and further scaled to the levels corresponding to frequent and rare earthquakes so that the seismic response of the frame structure could be simulated reasonably. After that, buckling restrained braces and viscous dampers were added respectively to the frame. The parameter of dampers were trial calculated until displacement reduction ratios were controlled at around 40% for frequent earthquake. In this way, the seismic responses, including inter-story drift ratio, floor acceleration, base shear, axial compression force of frame columns, distribution of plastic hinges and damper performance were compared. It is concluded that under frequent earthquakes, buckling restrained braces amplify floor acceleration, whereas viscous dampers can effectively reduce floor acceleration. Both buckling restrained braces and viscous dampers can effectively reduce floor acceleration under rare earthquakes, while buckling restrained braces are more effective in reducing displacement, but less powerful in controlling column axial force. [ABSTRACT FROM AUTHOR]

Copyright of Tourism Tribune / Lvyou Xuekan is the property of Tourism Institute of Beijing Union University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Beijing University of Traditional Chinese Medicine is the property of Journal of Beijing University of Traditional Chinese Medicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the light of local conditions, the author of Practical Path of Rural Revitalization Strategy describes the general requirements of industrial prosperity, ecological livability, rural civilization, effective governance and rich life, and proposes such measures as urban-rural integration development, common prosperity, quality development, green development, cultural prosperity, good governance and characteristic poverty reduction. From the theoretical and practical levels, he answers a series of practical problems such as the significance, strategies and measures of rural revitalization strategy in a plain language. [ABSTRACT FROM AUTHOR]

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Due to large information of multi-DOF structures, there are obvious deficiencies when using decentralized control strategy comparing with using the centralized control strategy. The market-based control (MBC) theory is decentralized control strategy based on the non-classic information only requires the information of discrete floors. As a nonlinear analysis method for engineering structures，the force analogy method (FAM) has the advantages of fast computation speed, small storage space and so on. Combining the FAM with the multi-MBC (MMBC) control strategy can greatly improve the efficiency of nonlinear analysis processes. The nonlinear MMBC decentralized controller design method based on the FAM was proposed, and the logarithmic supply and demand function model was built. The numerical analysis shows that the presented nonlinear MBC controller can achieve good control effect. In addition，the nonlinear MBC control strategy has strong adaptability even when the control device fails and it can achieve optimal real-time control through price mechanism, meanwhile its robustness is strong. [ABSTRACT FROM AUTHOR]

以国家和有关部委的资助项目库为数据来源，检索2014—2016年“一带一路”的相关基金立项，运用文献计量和空间分析的方法从项目的负责人、科研单位、所属地域、学科、研究内容等多个角度进行解析，旨在揭示“一带一路”研究的格局与态势.结果表明：(1)“一带一路”相关基金立项数目总体呈逐年上升趋势，增速平缓，国家社科基金主体地位明显.(2)项目所属单位、省份在空间上呈现集中分布趋势，体现了一定的区位优势、空间关联与地理邻近效应.(3)单个负责人的立项数目差异不大，分布较为平均.(4)“一带一路”、丝绸之路经济带、21世纪海上丝绸之路为目前学者主要的研究对象和议题.(5)各类基金高频词汇基本保持同步，五类基金研究的热门领域大体趋于一致，包括经济学、国际问题研究、民族问题研究和交叉学科研究等.最后，从研究数据、时间、空间及学科与合作前景上，对未来的研究趋势做了总结和展望.

Objective To summarize the clinical treatment experience of carbapenem-resistant Klebsiella pneumoniae (CRKP) infection after renal transplantation in donation after cardiac death (DCD) era. Methods Clinical data of 10 donors and 17 recipients with CRKP infection after DCD renal transplantation from January 2015 to January 2019 were retrospectively analyzed. Both donors and recipients received bacterial culture and drug sensitivity test. Clinical manifestations, treatment and outcome of CRKP-infected recipients were recorded. Results Seven donors were infected with CRKP. After pretreatment, CRKP in 2 cases turned negative, CRKP in 5 donors did not turn negative. All renal grafts were treated with tigecycline+meropenem+voriconazole lavage to prevent infection. Among 17 recipients with CRKP infection, 11 cases were positive for blood culture, 10 positive for urine culture, 3 positive for sputum culture, 3 positive for incisional secretion and 3 positive for retroperitoneal drainage. Clinical manifestations included fever in 8 cases, rupture and hemorrhage of the transplant renal artery in 7 cases or thrombosis in the transplant renal artery in 1 case, bladder irritation sign in 3 cases and cough with brick red jelly-like sputum in 1 case, respectively. Five patients were treated with tigecycline+meropenem, 1 patient suffered from renal graft loss and 4 recipients died. Twelve patients were treated with ceftazidime-avibactam +meropenem, 3 patients presented with renal graft loss and 1 recipient died. Conclusions CRKP-infected donor is not the absolute contraindication of renal transplantation. Pretreatment of donor infection and early administration of sufficient sensitive antibiotics can cure CRKP infection and improve the clinical prognosis of renal transplant recipients. [ABSTRACT FROM AUTHOR]

This paper proposed a method using wind-resistant energy dissipation damper to reduce the wind-induced damages to low-rise buildings with gable roof. In order to study the influence of the wind-resistant energy dissipation devices on the wind pressures applied to the roof, wind tunnel experiments were carried out for the buildings with three types of roofs, namely, roof without energy dissipation devices, vertical-parapets with energy dissipation devices, and vertical-parapets without energy dissipation devices. The experimental results show that the wind-resistant energy dissipation devices can greatly reduce the worst negative pressure over the whole roof. The absolute value of mean negative wind pressure coefficients for the most vulnerable area of the windward roofs, such as that near the ridge and close to the conjunction between the roof and gable, can be decreased by 50 percent. The wind-resistant energy dissipation devices can also affect the wind pressures of the leeward roof area, in which the absolute value of mean negative wind pressure coefficients can be decreased by 15 percent. Finally, the wind pressures of low-rise buildings with gable roof in the wind field were numerically simulated using finite element software. The results show that the distribution of wind pressure on the roof is consistent with the results of wind tunnel experiments. [ABSTRACT FROM AUTHOR]

The seismic performance of reinforced concrete (RC) structure under earthquake is obviously affected by the strain rate effect under high rate loading. Therefore, the strain rate effect should be considered when carrying out seismic performance analysis and design for RC structures. A large number of experiments on RC specimens under various rates of loading were collected and analyzed, and the specimens were used to develop the equivalent mechanical model. The material performance changing rule and trend of RC structure element subjected to various loading rate were investigated such that a database including numerous of test results of RC structural members under dynamic loads with different loading rate was established. The database' s interface is friendly and the retrieval system is efficient. Commonly used structural members, such as beams, columns, joints and shear walls, are included in the established database. [ABSTRACT FROM AUTHOR]

Objective To investigate the effect of body mass index (BMI) on short-term prognosis of patients after renal transplantation. Methods Clinical data of 1 041 adult patients undergoing the first renal transplantation in the Institute of Organ Transplantation of the 309th Hospital of People's Liberation Army from March 2009 to March 2013 were retrospectively studied. According to the Adult Obesity and Overweight Standard commonly used in China, these patients were divided into 4 groups:112 patients in BMI <1 8.5 kg/m2 group (emaciation group), 606 patients in BMI 1 8.5-23.9 kg/m2 group (normal group), 250 patients in BMI 24.0-27.9 kg/m2 group (overweight group)and 73 patients in BMI≥28.0 kg/m2 group (obesity group). The incidence of delayed graft function (DGF) and acute rejection (AR) of the 4 groups one year after renal transplantation were observed and compared. One-year patient and graft survival rates were calculated. The relationship between BMI and DGF was studied by univariate and multivariate Logistic regression analysis to investigate the effect of different BMI on DGF. Results After the follow-up for one year, the incidence of DGF in the obesity group was significantly higher than that in the emaciation group and the normal group(both in P <0.05). The difference in the incidence of acute rejection one year after renal transplantation as well as one-year patient or graft survival rate had no statistical significance (all in P >0.05). Univariate analysis showed that obesity increased the risk of DGF after renal transplantation (OR was 1 .33, P <0.05). Multivariate analysis showed that both overweight and obesity were independent risk factors of DGF after renal transplantation (OR was respectively 1 .56 and 1 .37, both in P <0.05). Conclusions Overweight and obesity increases the risk of DGF after renal transplantation, but do not increase the incidence of AR after renal transplantation and do no influence short-term patient and graft survival rates after renal transplantation. [ABSTRACT FROM AUTHOR]