98%棉隆在马铃薯原原种生产中对疮痂病的防治效果

[目的]通过田间药效试验明确98%棉隆对马铃薯原原种疮痂病的防治效果,为棉隆在马铃薯生产上的应用提供科学依据。[方法]通过2年的田间试验,分别对土壤和二次用蛭石进行处理,测定了棉隆在马铃薯原原种生产中对疮痂病的防治效果。[结果]98%棉隆对马铃薯疮痂病具有较好的防治效果,45 g/m^2的棉隆可用于土壤或二次用蛭石处理,其防效可达80%以上。[结论]98%棉隆可以作为马铃薯原原种生产土壤或基质消毒剂使用,可有效防除马铃薯疮痂病,推荐使用剂量为45 g/m^2。     

基于AM335X和Android的北斗二代接收机设计

随着北斗二代区域定位的实现,北斗导航的市场日益扩大,因此对于智能北斗导航终端的研究也逐渐成为热点。本文设计的硬件平台核心为基于ARM的高性能低功耗通用微处理器AM335X,射频前端采用国产CCS50D BG高精度北斗二代卫星导航模块,并以Android嵌入式系统作为移动应用开发平台。概述了北斗导航终端的系统硬件构架、Android操作系统的特点及导航终端的功能需求,详细阐述了操作系统移植方法及导航应用的开发,完整介绍了智能导航终端的设计过程,为北斗导航终端的开发提供了一定的参考意义。     

基于模板文件的WINCGI技术在WWW服务中的应用

介绍ＣＧＩ的概念,ＷＩＮＣＧＩ的原理及基于模板文件的ＷＩＮＣＧＩ的特点,介绍采用基于模板文件的ＷＩＮＣＧＩ的方法及其在教务管理系统中的应用,提出了开发ＣＧＩ程序的改进措施。     

Microbeam Irradiation as a Simultaneously Integrated Boost in a Conventional Whole-Brain Radiotherapy Protocol

Microbeam radiotherapy (MRT), an experimental high-dose rate concept with spatial fractionation at the micrometre range, has shown a high therapeutic potential as well as good preservation of normal tissue function in pre-clinical studies. We investigated the suitability of MRT as a simultaneously integrated boost (SIB) in conventional whole-brain irradiation (WBRT). A 174 Gy MRT SIB was administered with an array of quasi-parallel, 50 µm wide microbeams spaced at a centre-to-centre distance of 400 µm either on the first or last day of a 5 × 4 Gy radiotherapy schedule in healthy adult C57 BL/6J mice and in F98 glioma cell cultures. The animals were observed for signs of intracranial pressure and focal neurologic signs. Colony counts were conducted in F98 glioma cell cultures. No signs of acute adverse effects were observed in any of the irradiated animals within 3 days after the last irradiation fraction. The tumoricidal effect on F98 cell in vitro was higher when the MRT boost was delivered on the first day of the irradiation course, as opposed to the last day. Therefore, the MRT SIB should be integrated into a clinical radiotherapy schedule as early as possible.     

Pepper Alkaloid Piperine Increases Radiation Sensitivity of Cancer Cells from Glioblastoma and Hypopharynx In Vitro

In our study, our aim was to examine the cytotoxic and radio-sensitizing effect of the alkaloid piperine, a major pungent of black pepper, on two different human epithelial tumor cell lines in vitro. The growth of the human cell lines T98G (glioblastoma) and FaDu (hypopharyngeal carcinoma) was examined under the influence of piperine in different concentrations. In addition, after combined treatment with ionizing radiation, long-term survival was investigated with a colony formation assay. The proliferation was analyzed using the BrdU-assay, while the DNA repair capacity was examined via the γH2AX assay. Piperine reduced the growth of both cell lines in a concentration-dependent manner as well as a time-dependent one. After combined treatment with piperine and ionizing radiation, an inhibition of clonogenic survival could be proven. A reduced proliferation capacity and an additive effect on DNA damage 24 h after irradiation are possible causal mechanisms, which were also demonstrated for both cell lines. Based on the results presented in this study, piperine was shown to have cytotoxic antitumor activity and a radio-sensitizing effect in micromolar concentrations in the human tumor cells that were tested. Based on these results piperine represents a potential therapeutic option in radio-oncological treatment.     

精密量热系统中计算机实时监测技术的应用

本文根据Ｐｏnｓ－Ｆｌｅｉｓｃｈｍａｎｎ电解水量热模型［１］和模拟实验测得的数据，归纳出更为符合实际情况的经验公式，介绍了利用先进的计算机硬件和基于ＷＩＮＤＯＷＳ９５／９８平台的多线程编程技术，研制成以ＰＣ机实时监测、自动采集、数据处理系统为核心的大功率精密量热系统，进而准确检测发生“冷核聚变”并且记录其“过热”的完整过程。     

The impact of transparency policies on local flexibility markets in electric distribution networks

The energy transition brings various technical, economic, and organizational challenges. One major topic, especially in zonal electricity markets, is the organization of future congestion management. Local flexibility market (LFM) is an often discussed concept of market-based congestion management. Like the whole energy system, the market transparency of LFMs can influence individual bidders' behavior. In this context, the predictability of the network status of distribution networks and an LFM's outcome, depending on a given transparency policy, is investigated in this paper. For this, forecast models based on artificial neural networks (ANN) are implemented on synthetic distribution network and LFM data. Three defined transparency policies determine the amount of input data used for the models. The results suggest that the transparency policy can influence the distribution network status and LFM outcome predictability, but appropriate forecasts are generally feasible. Therefore, the transparency policy should not conceal information but provide a level playing field for all parties involved. Providing semi-disaggregated data on the network area level can be suitable for bidders' decision-making and reduces transaction costs.