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Aufsatz
The political: A view from Jakarta's kampungs
(2024-04-26)
This article is a response to Leitner and Sheppard’s recent publications on Jakarta. I argue that Jakarta’s kampungs and the eviction of their communities is a topic that needs to be situated in the realm of social reproduction. The multidimensional problems in kampungs fall within capitalism’s wider ‘crisis of care’. From this methodological position, we can access the political domain of the kampung, from which a new political agency emerges as collective bodies beyond merely the sum of individual survival tactics.
Aufsatz
Analysis of the Similarity between Injection Molding Simulation and Experiment
(2024-05-01)
In the plastics industry, CFD simulation has been used for many years to support mold design. However, using simulation as a substitute for experimentation remains a major challenge to this day. This is due to the unknown congruence between simulation and experiment. The present work focuses on a comparison between simulation (generated with the software Moldflow Insight Ultimate from Autodesk Inc., San Francisco, CA, USA) and experiment by using molds of different complexity, where, in contrast to a large number of ...
Aufsatz
Peak shaving at system level with a large district heating substation using deep learning forecasting models
(2024-05-20)
The decarbonisation of urban district heating (DH) systems requires increased heating grid flexibility. Therefore, this article examines the optimised operation of a tank thermal energy storage (TTES) on the secondary side of a new DH substation for an industrial site in a German city, in order to shave the peaks of the whole DH system and thus reduce the need for heat-only boilers (HOB). The accuracy of heat load and return temperature forecasts for both the industrial consumer and the DH grid is critical to the ...
Aufsatz
Phospholanes via Twofold C-H-Addition to Phospholes
(2024-05-23)
A synthetic route towards phospholanes via twofold C−H-addition of a DMSO molecule to β-H substituted phospholes is described. The resulting fused phospholane oxothiolane system in case of symmetric α-substitution possesses four stereogenic centers or rather six in case of asymmetric α-substitution. The reaction conditions are shown to be applicable for a variety of phospholes with different P- or α-substituents always leading to stereoselective formation of the fused heterocyclic ring system. All phospholane derivatives ...
Aufsatz
Effect of full-sib and S2-selection on a sweet corn population (Zea mays convar. saccharata)
(2024-04-26)
Sweet corn breeding goals differ from grain or silage corn. Sweet corn goals focus on marketable yield including several quality traits. This study explores the effect of a single cycle of full-sib selection and S2 selection on improving the marketable yield of an open-pollinated sweet corn population. The selected populations were subsequently compared in four environments for several plant-, yield- and quality traits relative to the original population. Analysis of variance was used to detect selection progress and ...
Aufsatz
Fluoropyrimidines trigger decay of hypomodified tRNA in yeast
(2024-06-10)
Therapeutic fluoropyrimidines 5-fluorouracil (5-FU) and 5-fluorocytosine (5-FC) are in long use for treatment of human cancers and severe invasive fungal infections, respectively. 5-Fluorouridine triphosphate represents a bioactive metabolite of both drugs and is incorporated into target cells’ RNA. Here we use the model fungus Saccharomyces cerevisiae to define fluorinated tRNA as a key mediator of 5-FU and 5-FC cytotoxicity when specific tRNA methylations are absent. tRNA methylation deficiency caused by loss of ...
Aufsatz
Optimal photoelectron circular dichroism of a model chiral system
(2024-06-03)
We optimize the internuclear geometry and electronic structure of a model chiral system to achieve a maximal photoelectron circular dichroism (PECD) in its one-photon ionization by circularly polarized light. The electronic structure calculations are performed by the single center method, while the optimization is done using quantum alchemy employing a Taylor series expansion. Thereby, the effect of bond lengths and uncompensated charge distributions on the chiral response of the model is investigated theoretically ...
Aufsatz
Improving acid-stressed anaerobic digestion processes with biochar towards a combined biomass and carbon management system
(2024-03-06)
Interest in biochar as an additive to enhance anaerobic digestion (AD) has grown in the context of biomass cascading use and the 2050 net-zero goal. However, few studies have investigated the effects of biochar on AD from a biochar production perspective, including biomass feedstocks and pyrolysis temperatures. To valorise biomass and better understand the mechanisms and environmental implications of using biochar in AD, this study investigated the effects of distinct biochar types on AD under acid stress-induced ...
Aufsatz
Personal communication as a strategy to improve the quality of household organic waste – Does it work? results from a quasi-experimental study in Northern Hesse, Germany
(2024-04-22)
Household organic waste has great potential for closing nutrient cycles in agriculture. This requires proper waste separation by households. Personal communication at the doorstep potentially improves household waste separation behaviour but it is expensive and findings from existing research are mixed. Based on results of previous studies and from a quasi-experiment with non-equivalent groups design in two German municipalities, this paper argues that efficiency of personal communication depends on its context. It ...
Aufsatz
Integration and evaluation of the high-precision MotionCam-3D into a 3D thermography system
(2024-06-04)
Infrared thermal imaging enables fast, accurate and non-contact measurement of temperature distributions. However, 2D representations of 3D objects often require several images to provide significant information. For such cases, 3D thermograms allow a quick temporal and spatial analysis. In this paper, the integration of an industrial high-precision 3D sensor into a 3D thermography system is presented. The performances of the existing and new systems are assessed and compared by analyzing 3D thermograms of an ...