skill

摘要： In recent years, there has been increasing demand for high-resolution seasonal climate forecasts at sufficient lead times to allow response planning from users in agriculture, hydrology, disaster risk management, and health, among others. This paper examines the forecasting skill of the North American Multi-model Ensemble (NMME) over Ethiopia during the June to September (JJAS) season. The NMME, one of the multi-model seasonal forecasting systems, regularly generates monthly seasonal rainfall forecasts over the globe with 0.5 - 11.5 months lead time. The skill and predictability of seasonal rainfall are assessed using 28 years of hindcast data from the NMME models. The forecast skill is quantified using canonical correlation analysis (CCA) and root mean square error. The results show that the NMME models capture the JJAS seasonal rainfall over central, northern, and northeastern parts of Ethiopia while exhibiting weak or limited skill across western and southwestern Ethiopia. The performance of each model in predicting the JJAS seasonal rainfall is variable, showing greater skill in predicting dry conditions. Overall, the performance of the multi-model ensemble was not consistently better than any single ensemble member. The correlation of observed and predicted seasonal rainfall for the better performing models—GFDL-CM2p5-FLOR-A06, CMC2-CanCM4, GFDL-CM2p5-FLOR-B01 and NASA-GMAO-062012—is 0.68, 0.58, 0.52, and 0.5, respectively. The COLA-RSMAS-CCSM4, CMC1- CanCM3 and NCEP-CFSv2 models exhibit less skill, with correlations less than 0.4. In general, the NMME offers promising skill to predict seasonal rainfall over Ethiopia during the June-September (JJAS) season, motivating further work to assess its performance at longer lead times.

摘要： Many people go to school for an education._1__learn languages,history,geography,physics,chemistry and maths.Others go to school to learn a skill so that they can_2_a living.School__3_is very important and useful.

摘要： Background: Simulation-based training is a new strategy in teaching that gives the students good opportunities to learn and apply what they learn in nursing care safely. Aim: This study conducted to evaluate the effects of simulation-based training on nursing students’ communication skill, self-efficacy and clinical competence in practice. Subjects and Methods: Quiz-experimental design was used in this study (pre-posttest intervention), it was carried out on 100 nursing students first semester in 2019 using low and high-fidelity simulators. This study was carried out at College of Applied Medical Sciences-Bshia University. Data Collection: demographic data, communication skill, self-efficacy and clinical competence questionnaires. Analysis is done by SPSS version 20 software. Results: Participants who received the simulation-based training, showed statistical significant improvement in communication skill, self-efficacy, and clinical competence scores after participation in the simulation program (t = −32.64, p = 0.001;t = −19.9, p = 0.001;16.4, p = 0.001). Also, there are significant relation between gender and clinical competency (t = 2.768, p Conclusion: Simulation-based training in medical courses is effective in enhancing communication skill, self-efficacy and clinical competence. Multiple-patient simulations as a teaching-learning strategy in the nursing curriculum are highly recommended.

摘要： Improvements that can be attained in seasonal climate predictions in various parts of Africa using the multimodel supersensemble scheme are presented in this study. The synthetic superensemble (SSE) used follows the approach originally developed at Florida State University (FSU). The technique takes more advantage of the skill in the climate forecast data sets from atmosphere-ocean general circulation models running at many centres worldwide including the WMO global producing centers (GPCs). The module used in this work drew data sets from the Four versions of FSU coupled model system, seven models from the DEMETER project which is the forerun to the current European Ensembles Forecast System, the NCAR Model, and the Predictive Ocean Atmosphere Model for Australia (POAMA), all making a set of 13 individual models. An archive consisting of monthly simulations of precipitation was available over all the 5 regions of Africa, namely Eastern, Central, Northern, Southern, and Western Africa. The results showed that the SSE forecast for precipitation carries a higher skill compared to each of the member models and the ensemble mean. Relative to the ensemble mean (EM), the SSE provides an improvement of 18% in simulation of season cycle of precipitation climatology. In Eastern Africa, during December-February season, a north-south gradient of precipitation prevails between Tropical East Africa and the sector of the region towards Southern Africa. This regional scale climate pattern is a direct influence of the Intertropical Convergence Zone (ITZC) across the African continent during this time of the year. The SSE emerges with superior skill scores such as lowest root mean square error above the EM and the member models, for example in the prediction of spatial location and precipitation magnitudes that characterize the see-saw precipitation pattern in Eastern Africa. In all parts of Africa, and especially Eastern Africa where seasonal precipitation variability is a frequent cause huge human suffering due to droughts and famine, the multimodel superensemble and its subsequent improvements will always provide a forecast that outweighs the best Atmosphere-Ocean Climate Model. This approach and results herein imply that climate services centres worldwide and Africa in particular can make more objective use of model forecast data sets provided by global producing centres (GPCs) for consensus climate outlooks.

摘要： 本文主要研究了如何利用SKILL 汇编语言实现PDK 自动化测试以及操作界面化,列举了在实现PDK 自动化测试以及操作界面化的过程中遇到的难点.文章以华润上华0.13μm LG / MS 工艺中的rnplus 电阻为例,从利用程序提取Pcell CDF 参数信息,到实现multi-config 配置文件的保存与加载,着重介绍了各个环节中的难点以及相关问题的解决方法.PDK 自动化测试功能的实现,大大提高了Pcell测试模型建立的速度与程序的易用性,并且具有良好的适用性,能够广泛用于各个工艺平台的PDK 验证.

摘要： 自英特尔新一代300系主板发布，其内存支持标准频率提升到DDR42666后，各内存厂商就开始大力推广相关产品，如内存厂商G．SKILL芝奇就在近期推出了SniperX狙击系列DDR42666。从外观上看，它与其他狙击系列内存相似，都配备了采用铝合金钻切工艺打造的大型银色散热片.

摘要： 本发明提供一种基于Cadence Skill快速反标文字图形的方法和装置，方法包括以下步骤：设定能够包含住所有文字图形的边框并确定所述边框的左下点的坐标以及右上点的坐标；设定像素格点的边长，根据所述左下点的坐标以及右上点的坐标获得所述边框的长和宽，并根据所述边框的长和宽以及所述像素格点的边长在所述边框范围内划定所有像素格点；扫描所有所述像素格点以获取每个像素格点中的图形的面积大小，并且将每个所述面积与阈值进行比对，将所述面积大于阈值的像素格点与所述面积不大于阈值的像素格点进行图形反标。本发明可以将PCB板上的字体反标成shape形式，在PCB板厂的制程能力不足或PCB板厂制程控制不佳时有助于提高文字的清晰度。

摘要： 本发明提供一种基于Cadence Skill的压接件背钻过孔文件的生成方法与系统，所述方法包括：S1、运行Cadence Skill采集压接件相关信息；S2、输入压接件位号以及压接件鱼眼的长度信息；S3、自动选取符合设置条件的压接件差分对过孔进行添加背钻；S4、生成压接件背钻文件。解决了PCB工厂进行背钻时需要来回确认大量的背钻信息，工作量较大，设计效率较低的问题，实现提高设计效率，避免PCB板厂进行背钻时容易漏钻以及多钻的问题，提高工程师设计的准确性，大大缩短信息确认的时效性，有效提高PCB板厂打板时的质量。

摘要： 本发明公开了一种基于Skill快速查找跨平面走线的方法和系统，涉及服务器板卡技术领域。所述方法通过编写加载自动查找跨平面走线的Skill程序，然后选择需要检查的信号所在层及信号所在层的参考层运行Skill程序，接下来高亮所有选中的信号走线，判断信号走线是否满足检查条件，若是则取消对应线段高亮，若否则框出不满足检查条件的目标线段，并根据检查结果输出检查报告文档。采用本申请方法替代现有的人工检查方式，可解决人工检查过程中存在的耗费时间长及出错率高的问题，实现自动快速准确查找跨平面走线，提高设计人员的工作效率及PCB板的制板准确率，缩短了PCB的设计时间。

摘要： 本发明提供一种基于Cadence Skill快速反标文字图形的方法和装置，方法包括以下步骤：设定能够包含住所有文字图形的边框并确定所述边框的左下点的坐标以及右上点的坐标；设定像素格点的边长，根据所述左下点的坐标以及右上点的坐标获得所述边框的长和宽，并根据所述边框的长和宽以及所述像素格点的边长在所述边框范围内划定所有像素格点；扫描所有所述像素格点以获取每个像素格点中的图形的面积大小，并且将每个所述面积与阈值进行比对，将所述面积大于阈值的像素格点与所述面积不大于阈值的像素格点进行图形反标。本发明可以将PCB板上的字体反标成shape形式，在PCB板厂的制程能力不足或PCB板厂制程控制不佳时有助于提高文字的清晰度。

摘要： 本发明提出了一种基于Cadence Skill搜寻电源瓶颈的检查方法。该方法包括，定义电流量标准；确定待检查的电源和Source‑Recipient电源元件；确定Source‑Recipient电源元件的电流量；定义检查的范围；运行输出低于Source‑Recipient电源元件的电流量的位置，该方法还包括根据需要选择是否输出报告。其中低于Source‑Recipient电源元件的电流量的位置即为电源瓶颈的位置。基于本发明方法，还提出了一种基于Cadence Skill搜寻电源瓶颈的检查系统。本发明可以快速进行Layout Search，大大提高了工作效率和准确度，有利于提高设计质量。

摘要： 本发明公开了一种基于Cadence Skill自动检查修正钻孔的方法和系统，涉及服务器板卡技术领域。所述方法包括：编写自动检查修正钻孔公差的Skill程序；然后将Skill程序放入设计软件安装文件中运行，判断是否需要自动修正钻孔公差，若否则执行下一步，若是则通过程序自动修正钻孔公差，然后执行下一步；接下来自动侦测PCB板上是否有Press fit零件，若否则结束，若是则自动高亮并标注Press fit零件。本发明通过采用上述方法，解决了在PCB设计中，工程师需要花费大量的时间去人工检查钻孔表格的正确性及特殊钻孔的准确性问题，可快速检查钻孔表格的准确性并对特殊钻孔做出标注说明，在提高工程师工作效率和准确度的同时，还可以让工厂端快速准确的对特殊孔径做出处理，提高PCB的制板准确率。

摘要： 本发明提出了基于Cadence skill自动摆放工艺边tooling hole的方法和系统。该方法将PCB电路板放入平面直角坐标系中，记录PCB轮廓的四个顶点的坐标,并根据四个顶点的坐标，标示出PCB轮廓的边；判断边的走向；在平面直角坐标系X轴的方向，向PCB轮廓内部移动2mm,Y轴的方向，向PCB轮廓的外部移动4mm；由此确定出放置定位孔的位置。然后放置料号为MH_H157_48的零件。基于本发明提出的方法，还提出了系统。本发明通过在程序中实现了自动摆放工艺边tooling hole，能够快速完成工艺边tooling hole摆放，提高了绘制效率，同时减少人为错误。

摘要： 本发明提供了一种基于allegro skill的封装管脚丝印标识自动创建方法与系统，包括：获取零件丝印框的最左边X轴坐标值；获取第一列零件管脚的pin number属性值；提取属性值中的字母字符，添加至最左边X轴坐标位置的左侧指定偏移处；获取零件丝印框的最上方Y轴坐标值；获取第一行零件管脚的pin number属性值；提取属性值中的数字字符，添加至最上方Y轴坐标位置的上方指定偏移处；依次添加管脚丝印标识，完成管脚丝印标识创建。通过使用allegro skill程序实现自动创建BGA封装管脚丝印标识，能够快速准确的一键添加，避免了手动逐个添加的繁琐和失误，大大提高了PCB设计的效率和质量，对pcb工程师提高工作效率、减少出错率、保证品质等各方面提供帮助。

摘要： 本发明提供一种基于Cadence skill的自动修正板卡锐角的方法，构建检测区域，在检测区域内获取每条走线信息；监测每条走线是否有夹角，如有夹角，判断每条走线上的夹角角度是否≤90°；将每条走线上的夹角数量及夹角位置生成夹角清单；当走线的夹角角度≤90°时，获取所述夹角的位置，并将≤90°的夹角生成≤90°的夹角数量及位置清单。获取第一夹角角度调整控制指令，第一夹角角度调整控制指令包括：需要调整的走线编码，夹角位置信息及调整的角度信息；根据获取的第一夹角角度调整控制指令，调整所述走线的夹角角度。提高PCB设计效率，减少工程师手动操作的工作量。

摘要： 本发明涉及服务器板卡技术领域，提供一种基于Cadence skill的差分线线宽线距设计方法及系统，方法包括：编写自动调整差分线线宽和线距的Skill程序；选择需要变更线宽和线距的高速信号线，然后运行Skill程序；在当前运行的Skill程序中输入要变更的线宽和线距的数值，通过程序的内置公式运算后，板卡自动更改为变更后的线宽和线距。本发明通过通过编写自动调整线宽线距的程序，设计人员只需要选择信号线输入相应的数值，便可自动输出当前符合设计要求的线宽线距，解决了重新规划布线带来的耗时问题，提高了工作效率及设计质量。