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张北±500 kV四端柔直电网工程的送端张北站和康保站作为新能源外送的汇集站，分别连接大规模风电场群，受端北京站和丰宁站分别作为新能源消纳中心和柔直电网的功率平衡节点与华北地区交流电网相连接，丰宁站建有抽蓄机组为系统提供紧急功率支撑。整个工程结构复杂，风电场群出力间歇性、随机性大，柔直系统直流电压对多端有功功率的吞吐平衡量敏感性强，受端负荷中心对电能质量要求高，这为柔直换流器、新能源风电机组和抽蓄机组的控制提出了严峻挑战。针对三者的协调控制展开研究，为柔直送端换流器设计了带频率附加控制的V-f控制，为风电机组引入了以交流系统频率波动量为参考信号的P-f下垂附加控制，为抽蓄机组设置了以受端交流网线路潮流波动量为参考信号的功率附加控制，并在RTDS平台上搭建了硬件在环仿真模型进行了验证。仿真结果表明，在风电场群发生超短期总体出力波动的情况下，送端换流器和风电机组协同控制实现了风电场群超短期总体出力的自平抑，同时抽蓄机组参与控制缓解了受端交流电网潮流的波动，三者协调控制促进了风电场群、柔直电网、受端交流电网三者之间的柔性连接，提高了系统的安全稳定运行能力。

光开关与光开关阵列是 DWDM光网络的关键器件 ,主要用来实现光层的路由选择、波长选择和光交叉连接等功能 .文中全面论述比较了光开关和光开关阵列技术

光开关与光开关阵列是 DWDM光网络的关键器件 ,主要用来实现光层的路由选择、波长选择和光交叉连接等功能 .文中全面论述比较了光开关和光开关阵列技术

近年来,可扩充标记语言（XML）技术的应用越来越广泛,实现XML文件解析的方式也是多种多样。文章参照万维网联盟（W3C）定义的文档对象模型（DOM）标准接口文档,介绍了一种在标准C++语言的基础上实现DOM接口的方案,该方案不仅达到了用DOM接口的方式解析XML文件的目的,还避免了一些常用的XML解析器存在的解析速度慢的问题。

Copyright of Journal of Natural Disasters is the property of Gai Kan Bian Wei Hui 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 Ecology & Rural Environment is the property of Journal of Ecology & Rural Environment 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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目的 总结PDGFRβ基因突变的费城染色体阳性急性淋巴细胞白血病 (Ph+ ALL) 的治疗方法。方法 回 顾性分析 1 例 PDGFRβ 基因突变的 Ph+ ALL 的临床资料。结果 2021 年 1 月 5 月收治的 1 例 PDGFRβ 突变的 Ph+ ALL患者, 2021年1月27日、3月17日、4月16日、5月17日分别给予VDP+达沙替尼治疗 [ 长春新碱2 mg (第1天, 静 滴), 伊达比星10 mg (第1~3天, 静滴), 醋酸泼尼松片60 mg (第1~7天, 口服), 达沙替尼100 mg (口服) ], 检测微小 残留病 (MRD) 持续阳性。2021年6月18日、8月2日分别给予CAM+氟马替尼 [ 环磷酰胺1. 6 g (第1天, 静滴), 阿糖 胞苷 120 mg (第 3~6 天, 第 10~13 天, 静滴), 巯嘌呤片 100 mg (第 1~14 天, 口服), 氟马替尼 600 mg/d (口服) ]和 MTX+VP+氟马替尼［甲氨蝶呤 3. 5 g (第 1 天, 静滴), 长春瑞滨 40 mg (第 1 天, 静滴), 泼尼松片 60 mg 口服 (第 1~7 天, 口服), 氟马替尼 600 mg/d (口服) ］行第 5、6 个疗程的化疗, MRD 转阴。2021 年 9 月 15 日给予贝林妥欧单抗 [5 µg/ (m² ·d), 第1~7天, 15 µg/ (m² ·d), 第8~28天] 清除白血病残留后行allo-HSCT, 移植后氟马替尼600 mg/d维 持治疗至今, 定期监测 MRD。结论 氟马替尼联合 allo-HSCT 对 PDGFRβ 突变的 Ph+ ALL 治疗效果良好, 且安全 性高。 [ABSTRACT FROM AUTHOR]

Copyright of Food & Fermentation Industries is the property of Food & Fermentation Industries 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.)

Computational offloading is an essential technology in Mobile Edge Computing (MEC). To address the shortage of computational offloading strategies in multi-user and multi-MEC server scenarios,this paper proposes a hybrid artificial bee colony approach (Artificial Reverse Sine-Cosine, ARSC). First, the opposition-based learning strategy is used to initialize the population and optimize the initial solution of the population. Then the global optimal bootstrap information of the sine-cosine algorithm is exploited to improve the local search capability in the employed bee stage. Finally, to balance the global and local search capability of the approach, the step size factor is adapted by introducing dynamic perception. Simulation results show that the proposed ARSC approach outperforms offloading strategies based on particle swarm algorithm and artificial bee colony algorithm in convergence, latency, and energy consumption. [ABSTRACT FROM AUTHOR]

Copyright of Acta Prataculturae Sinica is the property of Acta Prataculturae Sinica 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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Copyright of Journal of Hubei Open Vocational College is the property of Journal of Hubei Open Vocational College 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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Copyright of Journal of Geodesy & Geodynamics (1671-5942) is the property of Editorial Board Journal of Geodesy & Geodynamics 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 Geography Teaching is the property of Geography Teaching Editorial Office, East China Normal 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 Electric Power is the property of Electric Power 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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Objective To study the changes in serum autophagy markers in children with retinopathy of prematurity (ROP) and its clinical value. Methods Premature infants who were screened for ROP in our hospital from January 2020 to December 2022 were selected as the study subjects. Those screened out with ROP at 4⁃6 weeks of birth were assigned to the ROP group and those without ROP to the control group. The levels of serum autophagy markers LC3⁃Ⅱ, Beclin⁃1 and P62 were detected at the 3rd day, 1st, 2nd and 3rd weeks of birth. The two groups were compared in terms of serum autophagy markers. The diagnostic efficacy of serum autophagy markers on ROP was analyzed. Results There was no significant difference in serum LC3⁃Ⅱ, Beclin⁃1 and P62 levels between the ROP group and control group at the 3rd day of birth (P > 0.05). At the first, second and third weeks of birth, however, the ROP group showed significantly lower levels of serum LC3⁃Ⅱ and Beclin⁃1 but higher level of P62 compared to the control group (both P < 0.05). The levels of serum LC3⁃Ⅱ, Beclin⁃1 and P62 at the first, second and third weeks of birth had diagnostic value for ROP. The children in the ROP group who did not receive mechanical ventilation and oxygen inhalation, and did not develop with sepsis and bronchopulmonary dysplasia showed lower serum LC3⁃Ⅱ and Beclin⁃1 levels and higher P62 levels at the first, second and third weeks of birth compared to those without the above⁃mentioned treatment as well as those complications (all P < 0.05). In the ROP group, those with severe ROP showed lower serum LC3⁃Ⅱ and Beclin⁃1 levels and higher P62 levels at the 3rd day, and 1st, 2nd and 3rd week of birth (all P < 0.05). Conclusion The levels of serum autophagy markers in children with ROP show significant changes since the first week of birth, so they have diagnostic efficacy for the diseases. [ABSTRACT FROM AUTHOR]

Copyright of Command Control & Simulation / Zhihui Kongzhi yu Fangzhen is the property of Command Control & Simulation 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.)

Aiming at the challenge of defining the subspace dissimilarity in traditional K-means soft subspace clustering techniques, this paper proposed a novel probability distance-based subspace difference representation model as the basis for an adaptive projection clustering algorithm. Firstly, based on the subspace clustering theory, the proposed method formulated a formula to describe the dissimilarities between associated soft subspaces. Secondly, by combining this formula with soft sub-space clustering, it defined a clustering objective optimization function and provided a detailed clustering algorithm process according to a local search strategy. A series of experiments on both synthetic and real-world datasets demonstrate that the introduction of subspace comparison can lead to learning a more optimal soft subspace for clusters. Compared to existing mainstream subspace clustering algorithms, the proposed algorithm significantly improves the clustering accuracy, making it suitable for high-dimensional data clustering analysis. [ABSTRACT FROM AUTHOR]

Copyright of Journal of China Medical University is the property of Journal of China Medical University 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.)

Objective 　We aimed to investigate the inhibitory effect of serum containing Huangqi Jianzhong Decoction on isoproterenol (ISO) induced lipolysis and browning in 3T3-L1 adipocytes and its relationship with the regulation of the cyclic adenosine monophosphate ( cAMP) / protein kinase A (PKA) / cyclic adenosine monophosphate response element binding protein (CREB) signaling pathway by brain and muscle aromatic hydrocarbon receptor nuclear transcription factor like protein-1 (BMAL1). Methods　Blank serum and Huangqi Jianzhong Decoction drug-containing serum were prepared. 3T3-L1 adipocytes were cultured in vitro and induced to differentiate and mature. They were divided into the control group, the blank group, the 2. 5% drug-containing serum group, the 5% drug-containing serum group, and the 10% drug-containing serum group. 10 mmol/ L ISO was given to all groups except for the control group to establish the hypertipolysis and browning model. Oil red O staining and enzyme-linked immunosorbent assay (ELISA) were used to detect the lipid droplet positive area ratio and the content of hydrolyzed products. Real-time PCR and Western blotting were conducted to detect the expression of lipolysis- and browning-related genes and proteins, respectively, to select the optimal volume fraction of drug-containing serum for the lentivirus transfection experiment. Mature adipocytes were transfected with si-BMAL1 to silence BMAL1. Control cells were transfected with si-NC. Then the cells were divided into the si-NC group, the containing serum si-NC group, the si-BMAL1 group, and the drug-containing serum si-BMAL1 group. After incubation with ISO, the lipid droplet positive area ratio in adipocytes was detected by oil red O staining. The contents of triglyceride (TG) and cAMP in adipocytes and free fatty acid (FFA) in medium were detected by ELISA. The protein expression levels of PKA and CREB were determined by Western blotting. The mRNA expression levels of hormone-sensitive lipase ( HSL), triglyceride lipase (ATGL), uncoupling protein 1 (UCP1), and T-box transcription factor 1 (TBX1) were determined by real-time PCR. Results　Compared with the 2. 5% and 5% drug-containing serum groups, the contents of cAMP in adipocytes and FFA in culture medium were decreased (P<0. 05), the content of TG was increased (P<0. 05), the protein expression of PKA was decreased (P<0. 05), and the mRNA expression levels of HSL and ATGL were decreased (P<0. 05) in the 10% drug-containing serum group. The relative protein expression of BMAL1 was significantly lower in 3T3-L1 adipocytes transfected with si-BMAL1 than in the si-NC group (P<0. 05), indicating that BMAL1 was successfully silenced. Compared with the si-NC group, the lipid droplet positive area ratio and TG content were decreased in the si-BMAL1 group (P<0. 05), while the FFA content in culture medium, cAMP content in adipocytes, and PKA and CREB protein expression levels were increased (P<0. 05), and the mRNA expression levels of HSL, ATGL, UCP1, and TBX1 were also increased (P<0. 05). Compared with the si-BMAL1 group, the lipid droplet positive area ratio and TG content were increased in the drug- containing serum si-BMAL1 group (P<0. 05), while the content of FFA in culture medium, the content of cAMP in adipocytes, and the protein expression levels of PKA and CREB were significantly decreased (P<0. 05) and the mRNA expression levels of HSL, ATGL, UCP1, and TBX1 were also decreased (P<0. 05). Conclusion　Drug-containing serum Huangqi Jianzhong Decoction can inhibit ISO-induced lipolysis and browning in 3T3-L1 adipocytes, the mechanism of action may be related to the regulation of the cAMP / PKA/ CREB signaling pathway by BMAL1. [ABSTRACT FROM AUTHOR]