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Energy and AI 2024年第3期17卷 397-405页

作者： Akihiro Yamashita Sascha berg Egbert figgemeier Helmholtz Institute Münster:Ionics in Energy Storage(IMD-4/HI MS) Forschungszentrum JülichJülichGermany Institute for Power Electronics and Electrical Drives(ISEA) RWTH Aachen UniversityAachenGermany Jülich Aachen Research Alliance JARA-EnergyGermany

Machine learning (ML) is a rapidly growing tool even in the lithium-ion battery (LIB) research field. To utilize this tool, more and more datasets have been published. However, applicability of a ML model to different information sources or various LIB cell types has not been well studied. In this paper, an unsupervised learning model called variational autoencoder (VAE) is evaluated with three datasets of charge-discharge cycles with different conditions. The model was first trained with a publicly available dataset of commercial cylindrical cells, and then evaluated with our private datasets of commercial pouch and hand-made coin cells. These cells used different chemistry and were tested with different cycle testers under different purposes, which induces various characteristics to each dataset. We report that researchers can recognise these characteristics with VAE to plan a proper data preprocessing. We also discuss about interpretability of a ML model.

关键词： Unsupervised learning Dimensionality reduction Inductive bias .Machine learning Variational autoencoder

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单管程空冷器等温冷凝的流动模型

石油化工设备 1985年第8期 57-60页

作者： W.f.berg ,J.L.berg

本文提出了单管程等温冷凝器每排管中流动情况的分析方法,该方法有助于对空冷蒸汽冷凝器有关问题的了解。这些问题中最严重的问题是由于较低管排发生冷凝冻结而使蒸汽流堵塞,以致最终可能造成管子的破裂。 NTU法通常用来推导冷凝器每一... 详细信息

本文提出了单管程等温冷凝器每排管中流动情况的分析方法,该方法有助于对空冷蒸汽冷凝器有关问题的了解。这些问题中最严重的问题是由于较低管排发生冷凝冻结而使蒸汽流堵塞,以致最终可能造成管子的破裂。 NTU法通常用来推导冷凝器每一排管压力降的广义表达式。这些表达式等于用数字方法所解联立方程式的结果,其所提出的图解法表明了流动模型并仅仅是换热器效率的函数。

关键词：方程式方程排管换热器分数值 AP 冷凝率蒸汽冷凝器复水器流动模型管程

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机动目标轨道的估算和预测

系统工程与电子技术 1984年第12期 44-53页

作者： R.f.berg 贺泽膏

卡尔曼滤波器用于反飞机火炮控制是很适合的。在本文中,我们利用卡尔曼滤波器理论发展了一种精确的、在数字上有效的方法,以便估算和预测机动固定翼飞机现在和未来的位置。这个方法已在雷达跟踪器火炮控制系统中实现并对各种固定翼飞机... 详细信息

卡尔曼滤波器用于反飞机火炮控制是很适合的。在本文中,我们利用卡尔曼滤波器理论发展了一种精确的、在数字上有效的方法,以便估算和预测机动固定翼飞机现在和未来的位置。这个方法已在雷达跟踪器火炮控制系统中实现并对各种固定翼飞机目标做了实验。外场实验结果表明,采用这个方法能够得到很高的目标瞄准精度。

关键词：方程式预测器方程自动控制设备机动目标误差传播协方差传播目标轨道

Clean air captures attention whereas pollution distracts:evidence from brain activities

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frontiers of Environmental Science & Engineering 2024年第4期18卷 5-15页

作者： Jianxun Yang Yunqi Liu Berry van den berg Susie Wang Lele Chen Miaomiao Liu Jun Bi State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET) Nanjing University of Information Science&TechnologyNanjing 210044China Nanjing foreign Language School Nanjing 210008China Department of Experimental Psychology University of GroningenGrote Kruisstraat 2/19712 TSGroningenThe Netherlands Department of Social Psychology University of GroningenGrote Kruisstraat 2/19712 TSGroningenThe Netherlands School of Education Science Nantong UniversityNantong 226019China

Awareness of the adverse impact of air pollution on attention-related performance such as learning and driving is rapidly ***,there is still little known about the underlying neurocognitive *** an adapted dot-probe task paradigm and event-related potential(ERP)technique,we investigated how visual stimuli of air pollution influence the attentional allocation *** were required to make responses to the onset of a target presented at the left or right visual *** probable location of the target was forewarned by a cue(pollution or clean air images),appearing at either the target location(attention-holding trials)or the opposite location(attention-shifting trials).Behavioral measures showed that when cued by pollution images,subjects had higher response accuracy in attention-shifting *** analysis results revealed that after the cue onset,pollution images evoked lower N300 amplitudes,indicating less attentioncapturing effects of dirty *** the target onset,pollution cues were correlated with the higher P300 amplitudes in attention-holding trials but lower amplitudes in attention-shifting *** indicates that after visual exposure to air pollution,people need more neurocognitive resources to maintain attention but less effort to shift attention *** findings provide the first neuroscientific evidence for the distracting effect of air *** conclude with several practical implications and suggest the ERP technique as a promising tool to understand human responses to environmental stressors.

关键词： Air pollution Attention Disengagement Performance Event-related potential

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单管程空冷器等温冷凝的流动模型(续)

石油化工设备 1985年第9期 47-50页

作者： W.f.berg ,J.L.berg ,钱辉广哈尔滨空气调节机厂

7.不凝气气阻所有单组元等温冷凝器,几乎都受到少量不凝气积聚的损害。如果换热器设计成单管程多管排冷凝器,那么蒸汽最初将由共同端进入底排管。蒸汽冷凝,冷凝液因重力而流出,但是不凝气开始积聚于最低压力点(a),直至不凝气气囊到达... 详细信息

7.不凝气气阻所有单组元等温冷凝器,几乎都受到少量不凝气积聚的损害。如果换热器设计成单管程多管排冷凝器,那么蒸汽最初将由共同端进入底排管。蒸汽冷凝,冷凝液因重力而流出,但是不凝气开始积聚于最低压力点(a),直至不凝气气囊到达管子出口端,

关键词：管程空冷器空气冷却器流动模型不凝气排管换热器蒸汽冷凝器复水器管箱空气气囊

Determining minimum sample size for the conditioned Latin hypercube sampling algorithm

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Pedosphere 2024年第3期34卷 530-539页

作者： Daniel D.SAURETTE Asim BISWAS Richard J.HECK Adam W.GILLESPIE Aaron A.berg School of Environmental Sciences University of Guelph50 Stone Rd EastGuelph ON N1G 2W1(Canada) Ontario Ministry of Agriculture Food and Rural Affairs1 Stone Rd WestGuelph ON N1G 2Y4(Canada) Geography Environment&GeomaticsUniversity of Guelph50 Stone Rd EastGuelph ON N1G 2W1(Canada)

In digital soil mapping(DSM),a fundamental assumption is that the spatial variability of the target variable can be explained by the predictors or environmental *** to adequately sample the predictors have been well documented,with the conditioned Latin hypercube sampling(cLHS)algorithm receiving the most attention in the DSM *** advances in sampling design,a critical gap remains in determining the number of samples required for DSM *** propose a simple workflow and function coded in R language to determine the minimum sample size for the cLHS algorithm based on histograms of the predictor variables using the freedman-Diaconis rule for determining optimal bin *** preprocessing was included to correct for multimodal and non-normally distributed data,as these can affect sample size determination from the *** on a user-selected quantile range(QR)for the sample plan,the densities of the histogram bins at the upper and lower bounds of the QR were used as a scaling factor to determine minimum sample *** technique was applied to a field-scale set of environmental covariates for a well-sampled agricultural study site near Guelph,Ontario,Canada,and tested across a range of *** results showed increasing minimum sample size with an increase in the QR *** sample size increased from 44 to 83 when the QR increased from 50% to 95% and then increased exponentially to 194 for the 99%*** technique provides an estimate of minimum sample size that can be used as an input to the cLHS algorithm.

关键词： bin width digital soil mapping normal distribution quantile range sampling design

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对机动的目标轨迹的估计和预测

火力与指挥控制 1984年第3期 57-65页

作者： Russell f.berg,高守贵美国通用动力公司

卡尔曼滤波器很适合高炮火控问题。本文应用卡尔曼滤波器理论,提出了一个精确的、在数字上有效的估计和预测机动的固定翼飞机现在位置与未来位置的设计方案。该方案已在采用雷达跟踪器的高炮火控系统中付诸实现,并对各种不同的固定翼飞... 详细信息

卡尔曼滤波器很适合高炮火控问题。本文应用卡尔曼滤波器理论,提出了一个精确的、在数字上有效的估计和预测机动的固定翼飞机现在位置与未来位置的设计方案。该方案已在采用雷达跟踪器的高炮火控系统中付诸实现,并对各种不同的固定翼飞机做了试验。实际的野外试验结果证明,采用本方案可取得高精度的瞄准。

关键词：机动目标方程天线目标跟踪火控系统雷达跟踪器目标位置测量值模拟结果卡尔曼增益火力控制系统军事系统数字滤波器卡尔曼滤波器 Kalman滤波器目标轨迹

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对VR-1000突破的推测

明胶科学与技术 1984年第1期 50-54页

作者： W.f.berg 关建华 ETH-Z Zurich Switzerland 中国科学院感光化学所

美国伊斯曼—柯达公司生产的VR—1000彩色负片投放市场,引起了国际感光实业界和学术界的很大震动。国内感光工业界对T颗粒乳剂的制备技术也深为关注。国际感光协会主席伯尔格(***)教授针对VR—1000写了一篇推测性的文章。鉴于这一课题... 详细信息

美国伊斯曼—柯达公司生产的VR—1000彩色负片投放市场,引起了国际感光实业界和学术界的很大震动。国内感光工业界对T颗粒乳剂的制备技术也深为关注。国际感光协会主席伯尔格(***)教授针对VR—1000写了一篇推测性的文章。鉴于这一课题的急迫性和重要性,以及高质量的明胶对于T颗粒的感光性能的不可忽视的作用,我们把这篇译文刊出,以飨读者。

关键词：颗粒乳剂 VR-1000 潜影中心感光度感光性能彩色负片彩色底片彩色片

聚氨酯橡胶在Caterpillar公司的应用

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润滑与密封 1978年第2期 100-103页

作者： L.f.berg 曾宪森美国履带式拖拉机公司天津市橡胶制品一厂

Caterpillar公司(履带式拖拉机公司)在液压密封、支柱、履带张紧器、臂架和其它部件上都应用了聚氨酯材料。采用这种材料的规格是按照使用要求来确定的。随着液压系统压力的增高,负荷增加和重量减轻,这些筛选试验对于发展新的配方将是... 详细信息

Caterpillar公司(履带式拖拉机公司)在液压密封、支柱、履带张紧器、臂架和其它部件上都应用了聚氨酯材料。采用这种材料的规格是按照使用要求来确定的。随着液压系统压力的增高,负荷增加和重量减轻,这些筛选试验对于发展新的配方将是有用的指南.

关键词：履带拖拉机链轨拖拉机装载机 Caterpillar 密封圈履带式拖拉机链轨式拖拉机试验台试验设备油缸液压缸轮式密封件防尘圈载货车

Building for Bees Designing structures to promote coexistence between humans and nature

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空中英语教室（高级版．彭蒙惠英语） 2024年第10期 6-7,38页

作者： Nate berg 不详

On Governors Island in New York,there will stand an arching structure that might seem likea sculptureoraworkof avant-garde ***'s about 8 feet high with a surface that's perforated with irregular fist-size *** material around each cavity creates the look of entrances to oversize anthills,or perhaps the suction cups of an *** arch itself is like a slice of an igloo,big enough to walk beneath.

关键词： irregular beneath enough