Results 21 to 30 of about 453 (149)

Planar, Twisted, or Curved Extended Tetrathiafulvalenes with Polycyclic Aromatic Hydrocarbon Cores Featuring Five-Membered Rings. [PDF]

open access: yesChem Asian J
Tetrathiafulvalenes (TTFs) extended by polycyclic aromatic hydrocarbons (PAHs) constitute a class of redox‐active chromophores. This review summarizes PAH‐extended TTFs for which the PAH core features five‐membered rings together with six‐, seven‐, and/or eight‐membered rings.
Pedersen VBR, Nielsen MB.
europepmc   +2 more sources

Semi Automatic Construction of ShEx and SHACL Schemas [PDF]

open access: yesCoRR, 2019
We present a method for the construction of SHACL or ShEx constraints for an existing RDF dataset. It has two components that are used conjointly: an algorithm for automatic schema construction, and an interactive workflow for editing the schema.
Boneva, Iovka   +3 more
core   +3 more sources

Comparison of thermal performance in solution heat exchangers with different chevron angles in absorption system

open access: yesCase Studies in Thermal Engineering, 2023
In this study, a solution heat exchanger (SHEX), one of the components of LiBr–H2O absorption refrigeration, is selected as a 60° and 30° chevron angle brazing-type plate heat exchanger, and its performance is experimentally investigated.
Jeonggyun Ham   +2 more
exaly   +3 more sources

Embedding Metadata Shex and Example RDF

open access: green, 2020
Vector Embedding Metadata Example: TransE embeddings for DrugBank computed using TransE.
Remzi Celebi, Remzi Celebi (8153019)
core   +5 more sources

Using Shape Expressions (ShEx) to Share RDF Data Models and to Guide Curation with Rigorous Validation

open access: green, 2018
We discuss Shape Expressions (ShEx), a concise, formal, modeling and validation language for RDF structures. For instance, a Shape Expression could prescribe that subjects in a given RDF graph that fall into the shape ``Paper'' are expected to have a ...
Thornton, Katherine (5074568)   +13 more
core   +3 more sources

Comparative expressiveness of ShEx and SHACL (Early working draft) [PDF]

open access: green, 2016
Contributions • We propose a simple formal language for graph shapes that subsumes both ShEx and SHACL. The semantics of the language is based on the semantics of Datalog, and also equivalently defined in terms of Monadic Second Order Logic with ...
Boneva, Iovka
core   +2 more sources

Author Correction: A protocol for adding knowledge to Wikidata: aligning resources on human coronaviruses. [PDF]

open access: yesBMC Biol, 2023
The original article [1] contains an incorrect version of Fig. 3. The corrected version can be viewed ahead in this Correction article. (Figure presented.) Overview of the ShEx schemas and the relations between them. All shapes, properties, and items are
Waagmeester A   +9 more
europepmc   +2 more sources

Potential Pharmacological Effects of Sanhuang Erxiang Powder in the Treatment of Ultraviolet-induced Skin Damage: Insights from Network Pharmacology and Experimental Validation

open access: yesNatural Product Communications
Objectives: Prolonged and intense ultraviolet (UV) exposure can cause skin photoaging diseases. Therefore, there is a need for more natural and safe drugs to treat UV skin damage diseases.
Qian Wang   +8 more
doaj   +2 more sources

The Efficacy of Brief School-Based Exercise Programs in Improving Pubertal Bone Mass and Physical Fitness: A Randomized Controlled Trial. [PDF]

open access: yesInt J Environ Res Public Health, 2021
Purpose: To examine the effects of three types of school-based exercises on bone health and physical fitness function in Chinese boys and girls. Methods: One hundred and seventy-four Chinese boys and girls were randomly assigned into four groups: (1 ...
Tian X   +6 more
europepmc   +2 more sources

Validating RDF Data: ShEx and SHACL compared

open access: yes, 2018
Slides about Validating RDF data, comparing ShEx and ...
Jose Emilio Labra Gayo (5239220)
core   +2 more sources

Home - About - Disclaimer - Privacy