Results 11 to 20 of about 53,720 (293)
Energies, 2022 Because of the limitations of traditional refrigerants, the application of trans-critical CO2 technology in domestic gas conditioners and other fields is becoming increasingly popular.
Benlin Shi +6 more
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Introduction: Expanding media, expanding histories
, 2023 This chapter distributed under the terms of the Creative Commons Attribution + Noncommercial + NoDerivatives 4.0 license.
Sune Bechmann Pedersen +2 more
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Modern Small and Microcogeneration Systems—A Review
Energies, 2021 Small and micro energy sources are becoming increasingly important in the current environmental conditions. Especially, the production of electricity and heat in so-called cogeneration systems allows for significant primary energy savings thanks to their
Marcin Wołowicz +2 more
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Research Progress of Small-scale CO2 Two-phase Expanders
Zhileng xuebao, 2023 With the increased awareness in the international community, the problems of ozone depletion and greenhouse effect have received extensive attention, more and more scholars are focusing on environmental-friendly refrigerants.
Qin Pengwei +6 more
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Structured Mesh Generation and Numerical Analysis of a Scroll Expander in an Open-Source Environment
Energies, 2020 The spread of the organic rankine cycle applications has driven researchers and companies to focus on the improvement of their performance. In small to medium-sized plants, the expander is the component that has typically attracted the most attention ...
Ettore Fadiga +3 more
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Organic Letters, 2021 Cyclobenzoins are shape-persistent macrocycles of interest in the preparation of optoelectronic and porous materials. New cyclotetrabenzoins derived from biphenyl, naphthalene, and tolane skeletons were synthesized using N-heterocyclic carbene-catalyzed benzoin condensation. Their preparation proceeded with different regioselectivity than that observed
Andrew M. Eisterhold +7 more
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High-Dimensional Expanders from Expanders [PDF]
, 2019 We present an elementary way to transform an expander graph into a simplicial complex where all high order random walks have a constant spectral gap, i.e., they converge rapidly to the stationary distribution.
Liu, Siqi +2 more
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High Risk Patient with ADM Breast Reconstruction [PDF]
Modern MedicineBreast reconstruction following mastectomy plays a vital role in many individuals’ recovery, symbolizing a shift from loss back to wholeness. Yet, this path can be complex, particularly in instances involving complicating factors such as radiotherapy and
Teodor MARES +2 more
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Expanders and right-angled Artin groups
, 2021 The purpose of this article is to give a characterization of families of expander graphs via right-angled Artin groups. We prove that a sequence of simplicial graphs $\{\Gamma_i\}_{i\in\mathbb{N}}$ forms a family of expander graphs if and only if a ...
Flores, Ramón +2 more
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Advances and applications of the maxillary expansion technique
口腔疾病防治, 2020 Transverse maxillary deficiency is a common malocclusion in the clinic. Palatal expansion techniques are commonly used in the treatment of maxillary transverse deficiency.
LIU Conghua, MAO Qin, WANG Chunlin
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