搜索到59293篇“ PILOT“的相关文章
飞行员校企合作人才培养模式研究
2025年
随着中国“十四五”民用航空发展规划的提出,中国航空业引来了飞速发展的时期。但制约民航业发展的一个重要因素是飞行员的短缺,而飞行员短缺的根本原因是培养成本高、培养周期长。本文通过对国内外飞行员培养方式的分析比较,构建飞行员培养成本模型,计算飞行员培养成本,总结国内飞行员校企合作人才培养模式的优势与不足。针对目前飞行员培养环节中存在的多元化需求不足、实践风险问题以及培养过程中高成本问题等,提出相应的对策建议,以期提高飞行员的培养质量,助力中国航空业飞速发展。
熊曼辰张越
关键词:飞行员校企合作民航业
先导液控单向阀动态特性研究
2025年
介绍了一种用于液压支架的先导液控单向阀。首先,对比了先导液控单向阀与二级卸载液控单向阀的结构差异,说明了先导液控单向阀提高卸载速度的原理;然后,通过试验对这2种液控单向阀的动态特性进行了测试。基于AMESim软件搭建了先导液控单向阀和试验系统的仿真模型,模拟了降柱过程2种液控单向阀的动态特性,试验数据和AMESim仿真结果一致,证明先导液控单向阀能够缩短从小阀芯开启到大阀芯开启的时间差,在提高大缸径支架移架速度方面具备显著优势。提供了一种新的思路来提高液压支架的移架速度和采煤效率,并为立柱液控单向阀的动态特性研究提供了方法。
牛国贤王伟
关键词:卸载AMESIM动态特性
基于Fluent的矿用电磁先导阀内部流场的仿真与分析
2025年
在使用中,电磁先导阀存在一些如能耗、渗漏和气蚀等问题,导致关键零部件的耐久性和可靠性不足。利用计算流体力学仿真技术对某新型电磁先导阀在高压高速工况时容易出现的冲击、能耗和气蚀现象,在不同压差条件下完成了流场仿真,展示了流体在模拟区域内的压力分布情况、流体在不同位置的速度分布情况、湍流在流体中的分布情况以及流体中气相的体积分数分布情况,对比不同条件下的云图,发现提高出口压力对先导阀结构存在的问题有一定的改善作用。
潘占仁王义毛道义王兆霆刘小龙
关键词:电磁先导阀球阀流场模拟FLUENT
Efficacy,safety and treatment satisfaction of transition to a regimen of insulin degludec/aspart:A pilot study
2025年
BACKGROUND There is a lack of clinical evidence on the efficacy and safety of transitioning from a thrice-daily pre-mixed insulin or basal-prandial regimen to insulin degludec/aspart(IDegAsp)therapy,with insufficient data from the Chinese population.AIM To demonstrate the efficacy,safety,and treatment satisfaction associated with the transition to IDegAsp in type 2 diabetes mellitus(T2DM).METHODS In this 12-week open-label,non-randomized,single-center,pilot study,patients with T2DM receiving thrice-daily insulin or intensive insulin treatment were transitioned to twice-daily injections of insulin IDegAsp.Insulin doses,hemoglobin A1c(HbA1c)levels,fasting blood glucose(FBG),hypoglycemic events,a Diabetes Treatment Satisfaction Questionnaire,and other parameters were assessed at baseline and 12-weeks.RESULTS This study included 21 participants.A marked enhancement was observed in the FBG level(P=0.02),daily total insulin dose(P=0.03),and overall diabetes treatment satisfaction(P<0.01)in the participants who switched to IDegAsp.There was a decrease in HbA1c levels(7.6±1.1 vs 7.4±0.9,P=0.31)and the frequency of hypoglycemic events of those who switched to IDegAsp decreased,however,there was no statistically significant difference.CONCLUSION The present findings suggest that treatment with IDegAsp enhances clinical outcomes,particularly FBG levels,daily cumulative insulin dose,and overall satisfaction with diabetes treatment.
Na YangLu LvShu-Meng HanLi-Yun HeZi-Yi LiYu-Cheng YangFan PingLing-Ling XuWei LiHua-Bing ZhangYu-Xiu Li
城市住宅更新路径探索:低层住宅自主更新试点的可行性与推广策略
2025年
本文通过梳理城市住宅更新的背景与现状,分析了房屋日趋老旧的自然规律与居民不断提升的居住需求之间的天然矛盾。在当前城镇化率逐渐接近理论峰值、人口总量趋于下降以及房地产市场转型等宏观背景下,指出业主主导的自主更新是解决这一矛盾的必然选择。文章进一步指出,低层住宅小区在自主更新中的意见统一、规划设计灵活性、资金平衡以及组织实施等方面具有相对优势,是自主更新试点的优先选项。基于此,本文提出了政策支持、法律规制、社区组织强化和多元化资金筹集等推广策略,为实现城市住宅的可持续更新和品质化发展提供了可行的探索路径和思路。
赵庆远赵立冲王艺燃
关键词:低层住宅可持续发展
Healthcare providers’perspectives on factors influencing their critical care decision-making during the COVID-19 pandemic:An international pilot survey
2025年
BACKGROUND Understanding a patient's clinical status and setting priorities for their care are two aspects of the constantly changing process of clinical decision-making.One analytical technique that can be helpful in uncertain situations is clinical judgment.Clinicians must deal with contradictory information,lack of time to make decisions,and long-term factors when emergencies occur.AIM To examine the ethical issues healthcare professionals faced during the coronavirus disease 2019(COVID-19)pandemic and the factors affecting clinical decision-making.METHODS This pilot study,which means it was a preliminary investigation to gather information and test the feasibility of a larger investigation was conducted over 6 months and we invited responses from clinicians worldwide who managed patients with COVID-19.The survey focused on topics related to their professional roles and personal relationships.We examined five core areas influencing critical care decision-making:Patients'personal factors,family-related factors,informed consent,communication and media,and hospital administrative policies on clinical decision-making.The collected data were analyzed using theχ2 test for categorical variables.RESULTS A total of 102 clinicians from 23 specialties and 17 countries responded to the survey.Age was a significant factor in treatment planning(n=88)and ventilator access(n=78).Sex had no bearing on how decisions were made.Most doctors reported maintaining patient confidentiality regarding privacy and informed consent.Approximately 50%of clinicians reported a moderate influence of clinical work,with many citing it as one of the most important factors affecting their health and relationships.Clinicians from developing countries had a significantly higher score for considering a patient's financial status when creating a treatment plan than their counterparts from developed countries.Regarding personal experiences,some respondents noted that treatment plans and preferences changed from wave to wave,and that there was a rapid
Sonali VadiNeha SanwalkaPramod Thaker
关键词:SURVEY
Enhancing China's Pilot Free Trade Zones
2024年
TVhe China(Shanghai)Pilot Free Trade Zone(hereinafter“Shanghai FTZ”)was the country's first FTZ.From its initial establishment to the systematic reforms and improvements of its institutions,in just 10 years the Shanghai FTz has achieved remarkable results.On the new journey ahead,it will continue to strive for high-standard opening up and focus on institutional innovations.We will coordinate development and security considerations,ensure close alignment with international economic and trade rules.
关键词:TRADEZONEPILOT
某企业汽车试制开发管理流程简介
2024年
汽车试制开发作为整车产品开发中的重要一环,其进度、成本、全过程质量管理有着严苛的要求;试制开发过程的顺畅性将直接影响各关联工序工作的顺利开展,同时也是考量试制经理工作质量的关键指标。本文基于项目管理思维模式,从试制开发计划、试制生产计划、试制需求输入、试制开发输出、试制准备、试制验证和试制质量管控等几个方面对试制开发管理流程进行了概括介绍。
陈金辉高林林段鹏勇
Adverse Pregnancy Outcomes Following Cryotherapy, Thermal Ablation and Loop Electrosurgical Excision Procedure for Cervical Intraepithelial Neoplasia Treatment: A Pilot Study among Zambian Women
2024年
Background: Cervical Intraepithelial neoplasia treatments have become essential interventions to manage cervical lesions. Majority of the recipients of these treatments are women within the reproductive age group, who according to literature may be at risk of adverse pregnancy outcomes. This pilot study is part of a study investigating adverse pregnancy outcomes among women who received Cryotherapy, Thermal ablation and Loop Electrosurgical Excision Procedure compared to the untreated women in Zambia. Materials and Methods: This descriptive study analyzed records of 886 (n = 443 treated and n = 443 untreated) women aged 15 - 49 years. The women were either screened with Visual Inspection with Acetic Acid or treated for Cervical Intraepithelial neoplasia at the Adult Infectious Disease Centre between January 2010 and December 2020. Women meeting the criteria were identified using the Visual Inspection with Acetic Acid screening records and telephone interviews to obtain the adverse pregnancy outcome experienced. Data were analysed using STATA version 16 to determine the prevalence and obtain frequency distribution of outcomes of interest. Univariate and multivariable binary logistic regression estimated odds of adverse pregnancy outcomes across the three treatments. Results: The respondents were aged 15 to 49 years. Adverse pregnancy outcomes were observed to be more prevalent in the treatment group (18.5%) compared to the untreated group (5.4%). Normal pregnancy outcomes were lower in the treated (46.3%;n = 443) than the untreated (53.7%;n = 443). The treated group accounted for the majority of abortions (85.2%), prolonged labour (85.7%) and low birth weight (80%), whereas, the untreated accounted for the majority of still births (72.7%). Women treated with cryotherapy (aOR = 2.43, 95% CI = 1.32 - 4.49, p = 0.004), thermal ablation (aOR = 6.37, 95% CI = 0.99 - 41.2, p = 0.052) and Loop Electrosurgical Excision Procedure (aOR = 9.67, 95% CI = 2.17 - 43.1, p = 0.003) had two-, six- and ten-times higher odds of adve
Victoria Mwiinga-KalusopaJohanna E. MareeConcepta KwaleyelaPatricia Katowa-Mukwato
关键词:PILOT
环境规制对建筑业节能减排的影响机制——以低碳试点政策与碳排放权交易试点政策为例
2024年
科学地评估环境规制对建筑业的节能减排效应对实现中国“双碳”目标意义重大,低碳试点政策与碳排放权交易试点政策是中国应对气候变化、减少温室气体排放的重要政策工具。基于2005—2018年中国各区域建筑业全生命周期碳排放及绿色能源效率等指标,通过双重差分模型实证检验了环境规制对建筑业的节能减排效应,同时还探究了环境规制对中国建筑业节能效应的空间溢出效应,并通过了一系列稳健性检验。研究表明:中国环境规制对建筑业有显著的节能效应,但对建筑业的减排效应不显著;低碳试点政策对邻近地区全生命周期绿色能源效率存在显著正向空间溢出效应;环境规制对建筑业全生命周期绿色能源效率的正向显著作用主要集中在建筑业发展水平高、建筑产业占比高及建筑业全生命周期碳排放量高的地区。基于研究发现,提出应将有关试点地区的成功经验推广到其他城市、利用试点政策的空间溢出效应推动试点地区的周边地区人才和资源共享、环境规制应根据试点地区不同特性制定差异化的实施方案等相关建议。
张铮燕武照奇蔡彬清
关键词:建筑业

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