Cosolvency is an intriguing thermodynamic phenomenon. However, the lack of theoretical research restricts its development and further applications. In this work, l-alanine, l-phenylalanine, L-tryptophan were selected as model substances to investigate mechanism cosolvency at molecular level. First, dissolution behaviors three amino acids characterized determine solvent ratios occurrence Furthermore, acid molecules undergo a shift in conformation, which leads changes inter/intramolecular...

Pyrene dimerisation was successfully used to model the beginning of soot nucleation in some simulation models. However, quantum mechanics (QM) calculations proved that binding energy a PAH dimer with three six-member rings similar pyrene dimer. Meanwhile, high concentration phenanthrene at flame conditions indicated probability collisions among them. The small difference and PAHs structurally smaller than also could be involved inception. Hence, binary were simulated find out whether dimers...

The main purpose of this paper is to investigate the dynamic characteristics solenoid valve in an air brake system and as a result decrease response time. To realize objective, research presents development validation analytical model commercial vehicle, which established within multi-domain physical modeling. An experimental test rig implemented data transient pressure are measured verify accuracy. simulation experiment results compared achieve suitable parameter configuration for valve.

In this paper, the bast fibers of Kosteletzkya virginica were degummed and separated into fine fibers, chemical composition, morphology, microstructure mechanical properties characterized by means SEM, ART-FTIR, DSC-TGA, XRD Instron tensile tester. The results showed that surface was smooth, there many visible grooves along vertical section. Typical celluloseⅠin confirmed FTIR analysis.The crystallinity higher than cotton lower castor-oil plant fibers. beginning maximum decomposition...

We propose a concise and consistent network focusing on multi-task learning of Referring Expression Comprehension (REC) Segmentation (RES) within Visual grounding (VG). To simplify the model architecture achieve parameter sharing, we reconstruct task as floating-point coordinate generation problem based both image text inputs. Consequently, rather than separately predicting bounding boxes pixel-level segmentation masks, represent them uniformly sequence tokens output two corner points...

Design and synthesis of high-performance single-molecule magnets (SMMs) have long been a research focus. Inspired by the best dysprosium(III) metallocene SMMs bis(methanediide) SMMs, we assumed dysprosium which had electrical neutrality combining two types ligands. As Dy

Silicon nitride ceramic balls are successfully applied in advanced bearings. In order to improve the performance and precision for ball bearings, research about material properties of Si3N4 is shown this paper. For ball, can be described by following factors: density, hardness, apparent porosity, crushing load fracture toughness. paper, from three different manufacturers tested reveal inherent correlations properties, correlation coefficients calculated. The results indicate that with...

Study the influence of eri-silk degumming process for results 2709 alkaline protease; combined with orthogonal experimental analysis high rate and breaking strength best process, then compare optimized extracted mulberry silk, virgin cotton, wool ramie fibers their fineness, mechanical properties, friction performance comparison. The show that protease can effectively remove silkgum, amount enzyme is main factor affecting rate; pH value factors strength. Comparing other fibers, eri-silks...

While measurement accuracy can be increased through continuously improving instrument precision, certain errors eliminated via data processing using properly devised algorithms. Multi-point roundness error separation methods that are the subjects of study in this paper reviewed, particularly, three-point method and other multi-point based on method, such as two-point mixed four-point summarized. Finally a comparison between each mentioned is made. Our views future development trend presented.

The eri-silk was degummed by Alkaline protease,the chemical composition of the analyzed and internal structure retting infrared spectral, also vertical form tested electron microscopy using thermal analysis to study properties eri-silk. results showed that highest content in alanine, followed acetic acid; heat resistance worse than soybean protein fiber wool, surface degumming smooth, there obvious dents between two silk fibroin; fibroin contain α-helix β-folding which is most main...

Direct detection of long-strand DNA by surface-enhanced Raman scattering (SERS) is a valuable method for diagnosis hereditary diseases, but it currently limited to less than 25-nt strand in pure water, which makes this approach unsuitable many real-life applications. Here, we report 60-nt label-free strategy without pretreatment SERS with polyquaternium-modified Ag microcrystals derived from an AgCl cube. Through the reduction-induced decomposition, size about 3 × μm3 cube reduced Ag, and...

Negative survey is a sensitive data collection method with wide range of application scenarios. Contrary to traditional surveys, participants are asked randomly choose an option which they do not belong to, and thus, their privacy can be protected. After collecting the from participants, overall distribution over different options obtained through reconstruction algorithms. However, existing negative models have considered questionnaire has multiple questions should compute aggregate scores...

With the development of enterprise information technology, category and quantity application system becomes more more. It's a inevitable trend to establish unified identity management provide single sign-on among systems. In this paper, ticket-based protocol design reference implementation are proposed. The new improves limitation classical such as Kerberos. It is easier safer implement for systems with lot legacy accounts.

In this paper through to analyse the sensitivity of several modal parameters about elastic modulus damage such as characteristic frequency, displacement, flexibility matrix and curvature , Combined with Fisher information got on different positions bridge. Computational simulation Jian Tiao bridge is implemented method find Optimum sensor placement schemes parameters. And result numerical analysis we know, most sensitive parameter modulus, less than matrix, third frequency. Sensitivity...

Using virginica stem bark as raw material, extracted with hydrochloric acid, sulfuric and tartaric acid through an orthogonal experiment. Then, the structure of pectin was analyzed compared mulberry pectin. The result showed that extraction rate stable relative high when using diluents extracting solution, pH value at 2 time 90 minutes. There were certain differences about color process different. Infrared spectrum analysis composition in basically same branch bark.

Lead-free (1-x)K0.5Na0.5NbO3–xLiNbO3 piezoelectric ceramics have been prepared by a conventional solid state process. The phase structure and the electrical properties of were studied. A polymorphic transition (PPT) between orthorhombic tetragonal phases was identified in composition range 0.08<x<0.10. near PPT show better properties. At level 10mol% LiNbO3, sample sintered at 1100oC for 1h exhibits optimal