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Experimental Study for Effect of Multi-Site Spark Ignition on Dedicated Hybrid Engine Performance under High Dilution Condition

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Journal of Thermal Science 2025年第1期34卷 254-267页

作者： YAN Bowen WATERS Benjamin HAINES Andrew MCGHEE mike HU Tiegang DENG Wei PU Yongxian MA Tianyu Powertrain Engineering R&D Center Chongqing Changan Automobile Co.Ltd. Changan UK R&D Centre Limited

In this study,a triple spark ignition scheme was first designed on a three-cylinder 1.5-L dedicated hybrid engine（DHE）.On this basis,the effect of different ignition modes on engine combustion and emission characteristics was studied,especially under high dilution *** results tested at 2000 r/min and 0.8 MPa BMEP（brake mean effective pressure） show that with highly increased in-cylinder flow intensity,using only passive prechamber（PPC） has a lower lean limit than that with single central spark plug（CSP）,thereby leading to slightly higher minimum fuel consumption and nitrogen oxides（NOx） *** side spark plugs（SSP）based on PPC can result in improved capability of lean limit extension and engine performance than ***,the improvement level is lower than that with triple spark plugs（TSP）.As the excess air ratio λincreases,the advantage of PPC and PPC with SSP in improving the combustion phasing compared with CSP gradually ***,the increasing tendency of their ignition delay and combustion duration is more *** added SSP based on PPC can effectively shorten the ignition delay of leaner mixture,but the combustion duration can be only slightly *** a result,under extremely lean condition,the advantage of PPC and PPC with SSP in terms of combustion characteristics over CSP becomes much *** contrast,the TSP ignition can achieve much shorter ignition delay and combustion duration simultaneously under this *** to the highest available dilution level,the TSP ignition achieves the lowest raw ***,it can also reduce the raw carbon monoxide（CO） and hydrocarbons（HC） emissions compared to CSP due to a more thorough combustion of the end gas *** on the excellent performance of TSP,the highest engine brake thermal efficiency（BTE） was further *** results show that with normal RON 92 fuel,the engine finally achieved 43.69% and 45.02% BTE under stochiometric mode with exhaust

关键词： dedicated hybrid engine high dilution condition NOx emissions passive prechamber thermal efficiency triple spark plug scheme

THE SAY HEY KID The life of one of the greatest baseball players of all time

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空中英语教室(高级版.彭蒙惠英语) 2025年第1期 10-11,40,41页

作者： mike Kupper 不详

Willie Mays,who died[last June]at the age of 93,[had]a fabulous career as the flamboyant Say Hey *** consider him the best of the *** spent 22 seasons in the major leagues,most with the Giants in New York and San Fran... 详细信息

关键词： base life greatest

基于大语言模型的科研质量评估：ChatGPT在不同设置与输入条件下的效能分析（英文）

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Journal of Data and Information Science 2025年第1期 7-25+229页

作者： mike Thelwall Information School University of Sheffield

研究目的：学术期刊文章的质量评估是科研评价、职位晋升等场景中耗时但关键的任务，探究大语言模型（LLMs）在此过程中的作用具有重要意义。研究方法：本研究评估不同输入方式（不含表格/图表/参考文献的全文、标题与摘要、仅标题）对C... 详细信息

研究目的：学术期刊文章的质量评估是科研评价、职位晋升等场景中耗时但关键的任务，探究大语言模型（LLMs）在此过程中的作用具有重要意义。研究方法：本研究评估不同输入方式（不含表格/图表/参考文献的全文、标题与摘要、仅标题）对ChatGPT评分质量的影响，并检验模型版本（ChatGPT4o、3.5-turbo、4o-mini）和系统指令对评分的调节作用。研究发现：最优输入为文章的标题与摘要，基于51篇论文数据集进行30次迭代后，ChatGPT评分与人工评分的平均相关系数达0.67（迄今报道的最高相关度）。ChatGPT 4o略优于3.5-turbo(0.66)和4o-mini(0.66)。研究局限：数据为单一作者、单一学科领域的便利样本，评分采用自评体系。实践价值：结果表明，文章全文可能干扰大语言模型的科研质量评估，而复杂系统指令比简单指令更有效；摘要虽不足以评估研究严谨性，但能有效提示原创性与重要性；通过线性回归将模型评分转换为人工评分尺度，准确率较随机猜测提升31%。原创性/价值：首次系统比较ChatGPT科研质量评估中不同指令、参数与输入条件的影响。

关键词： ChatGPT 大语言模型科学计量学科研评估

Environmental rehabilitation of damaged land

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Forest Ecosystems 2020年第2期7卷 247-262页

作者： mike Mentis Postnet 540 Bag X9Benmore 2010South Africa

Background:Much land is subject to damage by construction,development and exploitation with consequent loss of environmental function and *** might the loss be recovered?Results:This article develops principles of environmental *** issues include the *** means restoring the previous *** or not to restore is not a technical but a value *** is subject to adopting the sustainability *** the ethic is followed under rule of law then rehabilitation must be done always to’the high standard’which means handing down unimpaired environmental function and no extra land *** elements of the former condition that it is intended to restore must be *** these in any given case is the purpose of that rehabilitation *** specified restoration elements must be easily measurable with a few simple powerful *** land damage is not fixable so restraint must be exercised in what construction,development and exploitation are *** sustainability is adopted then cost benefit analysis is not a valid form of project appraisal because trading off present benefits against future losses relies on subjectively decided discount rates,and because natural capital is hard to price,indispensable,irreplaceable and *** often to be restored include agricultural land capability,landscape form and environmental *** capability is a widely used convention and,with landscape form,encapsulate many key land factors,and are easily *** soil and thereby environmental function provides the necessary base for an ecological ***:The need for rehabilitation is not to be justified by cost-benefit or scientific and technological proof,but rests on a value judgement to sustain natural capital for present and future *** on what activities and projects to permit should be based on what is physically and financially fixable o

关键词： Cost benefit analysis Environmental function Land capability Landscape form Natural capital Rehabilitation Restoration Sustainability

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国际盆景协会佳作选登(十)

花木盆景 2025年第1期 74-75页

作者：陈昌 [韩国]Jeong I Seuk [美国]Ryan Neil [菲律宾]mike Pena 不详

关键词：

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电动赛车新纪元

环球科学 2025年第2期 58-61页

作者：麦克·詹宁斯不详

肯定有不少人觉得一级方程式赛车代表着赛车这项运动的最高水平,但事实却并非如此。因为在过去的十多年时间里,电动方程式赛车在赛车场上开辟出了一条全新的电气化发展之路。该系列赛事是由前法拉利一级方程式车队的老板让·托德(Jean T... 详细信息

肯定有不少人觉得一级方程式赛车代表着赛车这项运动的最高水平,但事实却并非如此。因为在过去的十多年时间里,电动方程式赛车在赛车场上开辟出了一条全新的电气化发展之路。该系列赛事是由前法拉利一级方程式车队的老板让·托德(Jean Todt)和他的一些政界友人在2011年率先提出的,他们坚信汽车产业的电气化浪潮即将来临,赛车运动也要紧随其后,做出改变。

关键词：一级方程式赛车赛车运动法拉利电动方程式赛车电动赛车汽车产业电气化车队

Managing project risks and uncertainties

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Forest Ecosystems 2015年第1期2卷 31-44页

作者： mike Mentis Business & the environment Postnet Suite 10102 Private Bag X7005 3650 Hillcrest South Africa

This article considers threats to a project slipping on budget,schedule and *** is used here as the collective for risks（quantifiable bad things that can happen）and uncertainties（poorly or not quantifiable bad possible events）.Based on experience with projects in developing countries this review considers that（a）project slippage is due to uncertainties rather than risks,（b）while eventuation of some bad things is beyond control,managed execution and oversight are stil the primary means to keeping within budget,on time and fit-for-purpose,（c）improving project delivery is less about bigger and more complex and more about coordinated focus,effectiveness and developing thought-out heuristics,and（d）projects take longer and cost more partly because threat identification is inaccurate,the scope of identified threats is too narrow,and the threat assessment product is not integrated into overall project decision-making and *** by definition,what is poorly known is likely to cause *** it is not just the unquantifiability and intangibility of uncertainties causing project slippage,but that they are insufficiently taken into account in project planning and execution that cause budget and time *** project performance requires purpose-driven and managed deployment of scarce seasoned *** can be aided with independent oversight by deeply experienced panelists who contribute technical insights and can potentially show that diligence is seen to be done.

关键词： Budget Fit-for-purpose Management Project Risks Schedule Threats Uncertainties

The promising dawn of multimessenger astronomy

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Science Bulletin 2018年第1期63卷 2-4页

作者： mike Guidry Department of Physics and Astronomy University of Tennessee

The observation of a gravitational wave(GW)emitted from the merger of binary black holes[1]won a well-deserved Nobel Prize this year for the leaders of the Laser Interferometry Gravitational-Wave Observatory(LIGO),and raised hopes that future gravitational wave detections involving matter and not just vacuum(black hole)solutions of the Einstein field equations might be made in coincidence with other electromagnetic or neutrino *** viewed as difficult and probably requiring substantial longer-term improvement of technology,such

关键词：天文学爱因斯坦波浪二进制天文台诺贝尔领导人中微子

Graph Computing and Its Application in Power Grid Analysis

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CSEE Journal of Power and Energy Systems 2022年第6期8卷 1550-1557页

作者： mike Zhou Jianfeng Yan Qianhong Wu China Electric Power Research Institute Beijing 100192China

Approaches to apply graph computing to power grid analysis are systematically explained using real-world application *** exploring the nature of the power grid and the characteristics of power grid analysis,the guidelines for selecting appropriate graph computing techniques for the application to power grid analysis are outlined.A custom graph model for representing the power grid for the analysis and simulation purpose and an in-memory computing(IMC)based graph-centric approach with a shared-everything architecture are *** algorithms,including network topology processing and subgraph processing,and graph computing application scenarios,including in-memory computing,contingency analysis,and Common Information Model(CIM)model merge,are presented.

关键词： CIM model merge contingency analysis Graph computing in-memory computing network topology processing power grid analysis subgraph processing