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Karl Blossfeldt, 1865 - 1932

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作者： Adam hans christian. Metzger Rainer.

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基于横向磁通电机的派生能量收集研究

同济大学学报（自然科学版） 2022年第S01期50卷 181-185页

作者： Lukas BRANDL Ralf sAUERWALD hans-christian REUss 斯图加特大学汽车工程学院(IFs) 德国斯图加特70569

为了监测汽车电机的工作情况需要应用各类传感器,其中的挑战之一是为在旋转部件上布置的传感器提供电能。通过使用能量收集器,可以将电机中的寄生能量如电磁能和动能收集、转化为电能并储存,存储的电能可用来操作传感器。因此,本文以电... 详细信息

为了监测汽车电机的工作情况需要应用各类传感器,其中的挑战之一是为在旋转部件上布置的传感器提供电能。通过使用能量收集器,可以将电机中的寄生能量如电磁能和动能收集、转化为电能并储存,存储的电能可用来操作传感器。因此,本文以电机转子为重点,对一台横向磁通机进行研究,其中能量收集器用于收集足够的能量,并为一个温度传感器以及低功耗蓝牙非接触数据传输供电。为此,本文计算了当能量收集器被放置在横向磁通电机转子上时,在运行和生产过程中可望收集到的能量值。

关键词：自供能传感器能量收集电动机

spontaneous bacterial peritonitis: The clinical challenge of a leaky gut and a cirrhotic liver

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World Journal of Hepatology 2015年第3期7卷 304-314页

作者： Philipp Lutz hans Dieter Nischalke christian P strassburg Ulrich spengler Department of Internal Medicine I University of Bonn German Center for Infection Research

spontaneous bacterial peritonitis(sBP) is a frequent, life-threatening bacterial infection in patients with liver cirrhosis and ascites. Portal hypertension leads to increased bacterial translocation from the intestine. Failure to eliminate invading pathogens due to immune defects associated with advanced liver disease on the background of genetic predisposition may result in sBP. The efficacy of antibiotic treatment and prophylaxis has declined due to the spread of multi-resistant bacteria. Patients with nosocomial sBP and with prior antibiotictreatment are at a particularly high risk for infection with resistant bacteria. Therefore, it is important to adapt empirical treatment to these risk factors and to the local resistance profile. Rifaximin, an oral, nonabsorbable antibiotic, has been proposed to prevent sBP, but may be useful only in a subset of patients. since novel antibiotic classes are lacking, we have to develop prophylactic strategies which do not induce bacterial resistance. Farnesoid X receptor agonists may be a candidate, but so far, clinical studies are not available. New diagnostic tests which can be carried out quickly at the patient's site and provide additional prognostic information would be helpful. Furthermore, we need tools to predict antibiotic resistance in order to tailor first-line antibiotic treatment of spontaneous bacterial peritonitis to the individual patient and to reduce mortality.

关键词： Ascites Cirrhosis Farnesoid X receptor Liver Nucleotide-binding oligomerization domaincontaining 2 Rifaximin Prophylaxis spontaneousbacterial peritonitis Toll-like receptor 2

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基于电阻器耦合的电动汽车感应充电定位

同济大学学报（自然科学版） 2022年第S01期50卷 165-169页

作者： Ralf sAUERWALD Lukas BRANDL hans-christian REUss 斯图加特大学汽车工程学院(IFs) 德国斯图加特70569

目前,市场上出现越来越多的以电池为动力的电动汽车,其中大多数电动汽车必须通过有线充电装置进行充电。与之相对应的感应式无线充电系统,可以让充电过程更加舒适。无线充电系统一般由初级线圈和次级线圈组成,其中初级线圈可以建立在停... 详细信息

目前,市场上出现越来越多的以电池为动力的电动汽车,其中大多数电动汽车必须通过有线充电装置进行充电。与之相对应的感应式无线充电系统,可以让充电过程更加舒适。无线充电系统一般由初级线圈和次级线圈组成,其中初级线圈可以建立在停车场,将电能转化为场能;次级线圈安装在车辆中,接收初级线圈能量并转化为电能,为车辆电池充电。为保证充电过程安全有效,初级线圈和次级线圈必须充分耦合,这可通过将车辆准确定位在初级线圈上方来实现。本文提出了一种简单而经济的方法来验证线圈之间的耦合是否足以满足充电条件。通过安装在次级线圈侧的电阻,来模拟在确定工作条件下无线充电系统的电池负载;电阻两端电压可以用来估计线圈之间的耦合度,以反映车辆与初级线圈的相对位置。本文在数学和物理原理的基础上解释了这个概念,并在一个真实的无线电传输线路上进行了试验评估。

关键词：电动汽车无线动力充电联轴器定位

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一种自动驾驶电动汽车线束布局优化方法

同济大学学报（自然科学版） 2022年第S01期50卷 186-191页

作者： Jonas MAIER Benjamin KRüGER hans-christian REUss 斯图加特大学汽车工程学院(IFs) 德国斯图加特70569

近年来,随着汽车自动驾驶、数字化、电动化技术的不断发展,汽车的功能不断增加,车辆内部线束也随之增加。由于过多的线束导致车辆自重增加的问题日益突出。为了实现能源的高效利用和出行方式的可持续性,开发人员需要通过优化线束布置来... 详细信息

近年来,随着汽车自动驾驶、数字化、电动化技术的不断发展,汽车的功能不断增加,车辆内部线束也随之增加。由于过多的线束导致车辆自重增加的问题日益突出。为了实现能源的高效利用和出行方式的可持续性,开发人员需要通过优化线束布置来尽可能多的减轻车辆自重,同时降低成本。由于与线束相连的车辆零件位置固定,因此需要一个算法在车辆零件位置为限制条件下,优化车辆线束布局。之前的研究方法通常只考虑线束设计的部分限制因素,且没有考虑线束三维结构。在本文研究中,开发了一种新型的优化线束布局的方法,该方法考虑了与包装,温度负载以及装配难易相关的各种限制因素。该方法可以根据设计需求来控制线束布置方法,如在沿着车辆纵轴方向布置更多线束,以避免在车辆外围布置线束。通过该方法,可以高效地计算出线束长度、直径,以及精确的布线路径。

关键词：电动汽车汽车线束布线优化 Dijkstra算法

Post-orogenic transients and relict landforms of the Bafoussam–Mamfe region(West-Cameroon Highland margin)

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Journal of Mountain science 2022年第8期19卷 2180-2201页

作者： Pascal Landry WABO DEFO sébastien OWONA Moussa NsANGOU NGAPNA christian BALLA ATEBA christian MWABANUA MUTABI The University of Douala Faculty of ScienceDepartment of Earth SciencesDouala 24157Cameroon The University of Lubumbashi Faculty of ScienceDepartment of GeologyLubumbashi 1825Democratic Republic of Congo

The Bafoussam-Mamfe Region(BMR)belongs to the Western Cameroon Highland margin,an amalgam of transient landscape that evolved from the interactions between tectonics,lithology and climate *** area is tectonically active and shows differential tectonic uplift,contrasting relief,variations in erosion rates,in river incision,and in channel *** order to appraise the BMR tectono-geomorphic evolution,it is essential to understand relationships between internal and external processes and their geomorphic expression at a river basin *** this purpose,we use drainage texture(Dt),stream frequency(Fs),drainage density(Dd),asymmetry factor(AF),the transverse topographic symmetry factor(TTsF),the mean of mountain front sinuosity per unit(smf),concavity factor(Cf),hypsometry integral(HI)and streamlength gradient index(sL-index)based on 30 m Digital Elevation Models(DEM)and field *** results reveal considerable variations in geology,relief,topography and geomorphic indices values differentiated into three geomorphic units;the Mamfe unit developed on the Mamfe Cretaceous basin,the Nguti and Bafoussam high plateau units build up on the Precambrian granito-gneissic basement overlaid by a volcanic *** stepped(longitudinal and normalized)river profiles and complex hypsometric curves show the lithostructural control of the hydrographic ***(from~1.21 to~4.59),Fs(from~0.26 to~1.91),Dd(from~0.66 to~1.71)geomorphic indice values indicate a part of lithologic control on this morphology while the AF(from~1.16to~24.91),TTsF(from~0.20 to~0.71),smf(U2=1.11 and U3=1.19),Cf(from~-20.91 to~78.93),HI(from~0.12 to~0.52)and sL-index designate the active tectonics as the main factor that had controlled the morphology of this same *** results pinpoint the combined post-Pan-African to Recent tectonic features,lithologic heterogeneities and the differential erosion processes as main factors that have controlled the BMR *** results highlight how

关键词： Geomorphic indices Tectonic,Lithology Differential erosion Bafoussam-Mamfe Cameroon

schrodinger and Klein-Gordon theories of black holes from the quantization of the Oppenheimer and snyder gravitational collapse

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Communications in Theoretical Physics 2023年第9期75卷 122-135页

作者： christian Corda sUNY Polytechnic Institute 13502 UticaNew YorkUSAIstituto Livi59100 PratoTuscanyItaly and International Institute for Applicable Mathematics and Information SciencesB M Birla Science CentreAdarshnagarHyderabad 500063India

The schrodinger equation of the schwarzschild black hole(BH) has been recently derived by the author and collaborators. The BH is composed of a particle, the 'electron', interacting with a central field, the 'nucleus'. Via de Broglie's hypothesis, one interprets the 'electron' in terms of BH horizon's modes. Quantum gravity effects modify the BH semi-classical structure at the schwarzschild scale rather than at the Planck scale. The analogy between this BH schrodinger equation and the schrodinger equation of the s states of the hydrogen atom permits us to solve the same equation. The quantum gravitational quantities analogous of the fine structure constant and of the Rydberg constant are not constants, but the dynamical quantities have well-defined discrete spectra. The spectrum of the 'gravitational fine structure constant' is the set of non-zero natural numbers. Therefore, BHs are well-defined quantum gravitational systems obeying schrodinger's theory: the 'gravitational hydrogen atoms'. By identifying the potential energy in the BH schrodinger equation as being the gravitational energy of a spherically symmetric shell, a different nature of the quantum BH seems to surface. BHs are self-interacting, highly excited,spherically symmetric, massive quantum shells generated by matter condensing on the apparent horizon, concretely realizing the membrane paradigm. The quantum BH described as a'gravitational hydrogen atom' is a fictitious mathematical representation of the real, quantum BH, a quantum massive shell having a radius equal to the oscillating gravitational *** consequences emerge from this result:(i) BHs have neither horizons nor singularities;(ii) there is neither information loss in BH evaporation, nor BH complementarity, nor firewall paradox. These results are consistent with previous ones by Hawking, Vaz, Mitra and ***, the special relativistic corrections to the BH schrodinger equation give the BH Klein–Gordon equation and the cor

关键词： quantum black holes information paradox quantum shells quantum levels schrodinger and Klein-Gordon theories

Quantizing Euclidean Motions via Double-Coset Decomposition

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Research 2019年第1期2019卷 525-540页

作者： christian Wülker sipu Ruan Gregory s.Chirikjian Johns Hopkins University BaltimoreMDUSA Department of Mechanical Engineering National University of SingaporeSingapore

Concepts from mathematical crystallography and group theory are used here to quantize the group of rigid-body motions,resulting in a“motion alphabet”with which robot motion primitives are *** these primitives it is possible to develop a dictionary of physical *** with an alphabet of the sort developed here,intelligent actions of robots in the world can be approximated with fnite sequences of characters,thereby forming the foundation of a language in which robot motion is *** particular,we use the discrete handedness-preserving symmetries of macromolecular crystals(known in mathematical crystallography as sohncke space groups)to form a coarse discretization of the space sE(3)of rigid-body *** discretization is made fner by subdividing using the concept of double-coset *** specifcally,a very efcient,equivolumetric quantization of spatial motion can be defned using the group-theoretic concept of a double-coset decomposition of the formΓ\sE(3)/Δ,whereΓis a sohncke space group andΔis a fnite group of rotational symmetries such as those of the *** resulting discrete alphabet is based on a very uniform sampling of sE(3)and is a tool for describing the continuous trajectories of robots and *** efcient coarse-to-fne search algorithm is presented to round of any motion sampled from the continuous group of motions to the nearest element of our *** is shown that our alphabet and this efcient rounding algorithm can be used as a geometric data structure to accelerate the performance of other sampling schemes designed for desirable dispersion or discrepancy ***,the general“signals to symbols”problem in artifcial intelligence is cast in this framework for robots moving continuously in the world.

关键词： robot primitive thereby

Removing trace oxygen to obtain truly intrinsic transport in organic semiconductors

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science China Materials 2024年第5期67卷 1668-1669页

作者： hans Kleemann Dresden Integrated Center for Applied Physics and Photonic Materials Technische UniversitätDresdenGermany

Organic semiconductor is an emerging generation semiconductor material,which has a broad application prospect in the field of flexible and large-area *** now,tens of thousands of organic semiconductor molecules with diverse functions have been developed through elaborate molecular *** molecules are often classified into n-type and ptype,depending on whether the prevalent charge carriers are electrons or holes[1].

关键词： transport intrinsic moving

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