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设计了3个足尺模块化钢框架模块间内套筒连接节点试件，针对节点试件的抗震性能开展了拟静力低周往复加载试验，研究了节点试件的滞回曲线、骨架曲线、延性、耗能、刚度退化、层间位移角和转动刚度等抗震性能指标，并对影响节点试件的抗震性能参数进行分析。研究结果表明：节点试件的滞回环呈梭形，且形状较为饱满，其具有较强的耗能能力；3个节点试件均出现明显的刚度退化现象且下降坡度平缓；3个节点试件的层间位移角分别为0.085 rad、0.082 rad和0.096 rad，节点试件均具有良好的转动能力和延性性能且满足节点抗震设计要求。试件破坏特征表明，在模块柱内梁的上、下翼缘对应位置设置内隔板对节点的抗震性能有显著改善作用。

提出一种第三代合作伙伴（3GPP）长期演进（LTE）上行共享信道中传输预编码的实现方案,即基于现场可编程门阵列（FPGA）的多种混合基离散傅里叶变换/离散傅里叶逆变换（DFT/IDFT）处理器。这种DFT/IDFT处理器根据不同的输入数据长度进行动态配置,使硬件资源得到共享,处理速度及数据精度满足LTE系统测试要求。采用Verilog HDL语言在Xilinx公司的Virtex-5系列FPGA芯片内成功对该处理器模块进行了验证,并对其进行了优化。

文章主要介绍了利用单根光纤同时进行数据双向发送与接收功能的收发模块设计,它所能达到的最大传输速率为650Mbit/s,传输距离15km.文中给出了整个模块的设计过程及其测试结果.

Copyright of Journal of Anhui Agricultural Sciences is the property of Journal of Anhui Agricultural Sciences Editorial Office 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.)

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In order to clarify the combined acute toxic effects of the fungicide fenbuconazole and copper to zebrafish, the acute toxicity of fenbuconazole and copper alone, as well as their combination at equaltoxicity ratio or at different mass concentration ratios to zebrafish during different life stages were determined. The combined acute toxic effects were evaluated using the additional index (AI) method and co-toxicity coefficient (CTC) method. The results showed that the 96 h-LC50 values of fenbuconazole for adults, embryos, and larvae of zebrafish were 2.615, 4.121 and 4.140 mg/L, respectively, while that of copper were 0.235, 0.353, and 0.429 mg/L, respectively. The order of the acute toxicity was adult > embryo > larvae. The toxic effects of the mixtures on both zebrafish larvae and embryos showed an enhancement tendency. At equitoxicity ratio, the 96 h-LC50 of the mixed fenbuconazole and copper for larvae and embryos was 2.051 and 2.207 mg/L, respectively, and the evaluation results with AI and CTC methods were both additive; while the 96 h-LC50 of the mixture for adults was 1.755 mg/L, and the evaluation results of the two methods were different, which were antagonistic and additive effects, respectively. At different mass concentration ratios, the 96 h-LC50 values of fenbuconazole and copper mixed at 2 : 8, 5 : 5, and 8 : 2 were 0.272, 0.378 and 0.785 mg/L for embryos, respectively, which showed synergistic effects; the 96 h-LC50 values were 0.532, 0.621 and 0.934 mg/L for larvae, respectively, which showed either synergistic or additive effects. The results of the two methods were consistent for the embryos and larvae. As for the adults zebrafish, the 96 h-LC50 values were 0.434、0.653 and 1.053 mg/L, respectively, and the mixtures showed antagonistic effects except that it showed antagonistic and additive effects at 8:2 ratio with the two different methods. The results suggested that the acute toxicity of the mixture of fenbuconazole and copper was stronger to zebrafish at early life stages. This finding will help us to better evaluate the impact of contamination of fenbuconazole and copper on aquatic organisms. [ABSTRACT FROM AUTHOR]

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Objective To explore the clinical efficacy of intrathoracic injection of thrombin combined with drainage tube suspension in the treatment of refractory pneumothorax, and to observe the effect of this treatment scheme on the closure time of leakage and the incidence of fever. Methods From June 2020 to June 2022, 106 patients with refractory pneumothorax were prospectively selected and divided into a control group (53 cases) and a study group (53 cases) according to random number table. The control group was treated with intrathoracic injection of thrombin+conventional closed thoracic drainage, while the study group was treated with intrathoracic injection of thrombin+drainage tube suspension. The clinical efficacy, retention time, leakage closure time, hospitalization time, complications (fever, pleural adhesion, mediastinal emphysema) of the 6MWT groups were observed, and the lung function indexes [vital capacity (VC), residual volume (RV), pulmonary carbon monoxide diffusion (DLCO), total lung volume (TLC)] and blood gas analysis indexes [arterial oxygen partial pressure (PCO2) before and after the treatment were compared. Results After the treatment, the total effective rate of the study group was higher than that of the control group (P < 0.05). The retention time, leakage closure time and hospitalization time of the study group were shorter than those of the control group (P < 0.05). The complications in the study group were less than those in the control group (P < 0.05). After the treatment, the levels of VC, RV, DLCO and TLC in the two groups were higher than those before the treatment, and higher in the study group than in the control group (P < 0.05). After the treatment, PaO2, PaO2/FiO2, and SaO2 in the two groups were higher than those before the treatment, PaCO2 and Borg dyspnea index were lower than those before the treatment, and 6MWT was longer than that before the treatment, and compared with the control group, the change range in the study group was greater (P < 0.05). Conclusion Thoracic injection of thrombin combined with drainage tube suspension is effective in the treatment of refractory pneumothorax, which can improve the pulmonary function index and blood gas index, relieve dyspnea symptoms, improve exercise tolerance, shorten the recovery time, and will not increase complications. [ABSTRACT FROM AUTHOR]

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Copyright of Chinese Journal of Osteoporosis is the property of Chinese Journal of Osteoporosis 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.)

CGAS-STING signaling pathway is a novel and important innate immune signaling pathway, which is activated by nucleic acid substances and interacts with other immune responses, and plays an important role in various pathological processes such as inflammation, infection and cancer. It has recently been found that cGAS-STING is involved in the occurrence and development of various age-related musculoskeletal diseases and affects bone metabolism. However, the exact mechanism of action in osteoporosis (OP) remains unclear. Therefore, this paper summarizes the action mechanism of cGAS-STING and its downstream in OP, so as to provide new ideas for the treatment of OP [ABSTRACT FROM AUTHOR]

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The activation of the P2X7 receptor as an ATP-gated ion channel, triggers the release of pro-inflammatory cytokines in tumor carring individuals and stimulate excitation of injury-causing neurons, thereby exacerbating the transmission of pain. In preclinical cancer pain models, it has the potential to serve as a new therapeutic target for cancer pain management. [ABSTRACT FROM AUTHOR]

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Copyright of Machine Tool & Hydraulics is the property of Guangzhou Mechanical Engineering Research Institute (GMERI) 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.)

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Copyright of Steel Pipe is the property of Steel Pipe Magazine 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.)