Current Chinese Science - Volume 2, Issue 3, 2022

Background: The problems of putting a space robot into a geostationary orbit using a combined scheme and its approach to a geostationary satellite are considered. The authors’ previous results on this topic are briefly analyzed. Objective: The paper deals with three problems: further development of a rational strategy for the robot’s add-launching on geostationary orbit and its approaching target using a plasma electr Read More

Background: Intrinsically disordered proteins (IDPs) are proteins that lack a predetermined 3D structure and play key cellular functions. IDPs are often involved in diseases and have been shown to be attractive targets for drug development. The IDPs have been intensively investigated, revealing important results. Objective: This study aimed to evaluate the latest research bibliography since 2010, including the latest findi Read More

Aromatic nitro compounds are widely used to synthesize medicine, dyes, spices, and other organic synthesis reagents for their wide sources and low cost. One of the most important uses is the synthesis of phenolic compounds. Moreover, the nitro group on the aromatic ring can be converted to hydroxyl after reduction, diazotization, and hydrolysis, which is a traditional method to get hydroxyl. This mini-review describes the m Read More

Objective: The aim was to reconstruct the climatic parameters and ice of the Laptev Sea over the last centuries and identify the causes of their variability. Background: The ice-free water area of the Arctic Ocean has increased considerably during the summer-autumn period in recent decades, which may be attributed to several climatic and oceanographic factors. Methods: The ice-free period duration and mean annu Read More

Programmable DNA nanostructures are excellent modules for preparing artificial cells with complex structures and functions. As a biocompatible building material, DNA nanostructures can mimic cell components on the nanoscale and serve as artificial cell structural units, such as membrane proteins, cytoskeleton, organelles, or even protocell models. The incorporation of DNA strand displacement reactions and functional nuc Read More

Background: Recently, COVID-19 cases have been increasing globally at an alarming rate due to the COVID-19 second wave despite the mass vaccination programs. Search for the potential vaccine for SARS-CoV-2 is still in progress. The epitope-based vaccine is effective and is a cornerstone in vaccine development. The quick prediction of epitopes could be a proficient way of monitoring vaccine development duri Read More

Background: Through the analysis of the relevant data of industrial equipment, faults diagnosis is helpful for system maintenance and reducing economic losses. Objective: This study aimed at reducing the influence of irrelevant features and efficiently training the FIR-XgBoost model. Methods: An Extreme Gradient Boosting (XgBoost) approach based on feature importance ranking (FIR) is proposed in this article for fau Read More