Fundamentals of Monitoring Condensation and Frost/Ice Formation in Cold Environments Using Thin-Film Surface-Acoustic-Wave Technology.

Moisture condensation, fogging, and frost or ice formation on structural surfaces cause severe hazards in many industrial components such as aircraft wings, electric power lines, and wind-turbine blades. Surface-acoustic-wave (SAW) technology, which is based on generating and monitoring acoustic waves propagating along structural surfaces, is one of the most promising techniques for monitoring, predicting, and also eliminating these hazards occurring on these surfaces in a cold environment. Monitoring condensation and frost/ice formation using SAW devices is challenging in practical scenarios including sleet, snow, cold rain, strong wind, and low pressure, and such a detection in various ambient conditions can be complex and requires consideration of various key influencing factors.

sp. nov. and sp. nov. isolated from .

Four Gram-stain-positive, facultatively anaerobic, non-motile, non-spore-forming and rod-shaped bacteria (lx-72, lx-45, ZJ784 and ZJ955) were isolated from the respiratory tract or faeces of marmot () from the Qinghai-Tibet Plateau in China. Analysis of the 16S rRNA gene sequences showed that all strains belong to the genus and are more related to CCUG 64069 (95.1-97.

Effects of the Yaw Angle on Air Drag Reduction for Various Riblet Surfaces.

Biomimetic riblet surfaces, such as blade, wavy, sinusoidal, and herringbone riblet surfaces, have widespread applications for drag reduction in the energy, transportation, and biomedicine industries. The drag reduction ability of a blade riblet surface is sensitive to the yaw angle, which is the angle between the design direction of the riblet surface and the average flow direction. In practical applications, the average flow direction is often misaligned with the design direction of riblet surfaces with different morphologies and arrangements.

The Threat of Potentially Pathogenic Bacteria in the Feces of Bats.

Bats have attracted global attention because of their zoonotic association with severe acute respiratory syndrome coronavirus (SARS-CoV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Previous and ongoing studies have predominantly focused on bat-borne viruses; however, the prevalence or abundance of bat-borne pathogenic bacteria and their potential public health significance have largely been neglected. For the first time, this study used both metataxonomics (16S rRNA marker gene sequencing) and culturomics (traditional culture methods) to systematically evaluate the potential public health significance of bat fecal pathogenic bacteria.

sp. nov. and sp. nov., new members in the genus .

Four novel bacterial strains (zg-ZUI122/zg-ZUI10 and zg-ZUI227/zg-ZUI100) were isolated from the intestinal contents of and characterized using a polyphasic approach. Cells were Gram-stain- and catalase-positive, urease- and oxidase-negative. Strains grew optimally at 28-30 °C, pH 7.

Morphological and genomic characteristics of two novel halotolerant actinomycetes, Tomitella gaofuii sp. nov. and Tomitella fengzijianii sp. nov. isolated from bat faeces.

Four white-pigmented, Gram-staining-positive, strictly aerobic, non-spore-forming, irregular rod-shaped bacteria were isolated from the faeces of bats collected from Guangxi autonomous region (22°20'54″N, 106°49'20″E; July 28, 2011) and Chongqing city (30°02'15″N, 107°07'4″E; September 1, 2011) of South China. The strains shared 99.3-99.

sp. nov. isolated from trachea of , sp. nov. and sp. nov. from human faeces.

Six novel facultatively anaerobic, Gram-stain-positive, rod-shaped, non-haemolytic bacteria (zg-320/zg-336, zg-917/zg-910 and zg-913/zg-915) isolated from animal tissues and human faeces were found to belong to the genus based on the phylogenetic analyses of 16S rRNA gene and 262 core genes set. Based on the greatest degree of 16S rRNA similarity, zg-320/zg-336 had the highest 16S rRNA gene similarity to DSM 44353 (97.51 %), zg-917/zg-910 to DSM 44184 (98.

Reduction of Ice Adhesion Using Surface Acoustic Waves: Nanoscale Vibration and Interface Heating Effects.

Ice accumulation causes great risks to aircraft, electric power lines, and wind-turbine blades. For the ice accumulation on structural surfaces, ice adhesion force is a crucial factor, which generally has two main sources, for exampple, electrostatic force and mechanical interlocking. Herein, we present that surface acoustic waves (SAWs) can be applied to minimize ice adhesion by simultaneously reducing electrostatic force and mechanical interlocking, and generating interface heating effect.

sp. nov. and sp. nov. isolated from wild animals and reclassification of and as comb. nov. and comb. nov., respectively.

Four Gram-stain-positive, catalase-negative, non-spore-forming, rod-shaped bacterial strains (zg-325, zg329, dk561 and dk752) were isolated from the respiratory tract of marmot () and the faeces of Tibetan gazelle () from the Qinghai-Tibet Plateau of PR China. The results of 16S rRNA gene sequence-based phylogenetic analyses indicated that strains zg-325 and dk561 represent members of the genus , most similar to DSM 20671 and B71, respectively. The DNA G+C contents of strains zg-325 and dk561 were 71.