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Introduction: Recurrent episodes of chronic tonsillitis (CT) can affect a patient’s quality of life, physical and mental health. Clinicians often perform surgeries to remove them. Traditional surgical methods are varied, despite their advantages. However, this remains controversial. This study aimed to examine both the safety and efficacy of low-temperature plasma tonsillectomy (LTPT) in the treatment of chronic tonsillitis, which may provide a substitute for clinicians and compensate for the short supply of therapeutic procedures.

Introduction: Glucocorticoids, macrolides, antibiotics and surgical treatment are regularly used for the treatment of chronic rhinosinusitis (CRS), Although these treatments have advantages, however, they and remain controversial. This study aims to examine both the safety and efficacy of traditional Chinese medicine (TCM) Biyuanshu oral liquid (BYSOL) in the treatment of CRS, which may supply a substitute for clinicians and compensate for the short supply of therapeutic procedures. Methods and analysis: The guidance for this protocol is contributed by the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P) in addition to the Cochrane Collaboration Handbook. Furthermore, stringent inclusion and exclusion criteria will be designed in English databases encompassing (PubMed, EMBASE, and Web of Science), in addition to Chinese databases covering (CNKI, Wanfang databases, CBM, and VIP), apart from searching literature in various clinical registration platforms including (Cochrane Library, Chinese Cochrane Centre’s Clinical Trial Registry Platform). For evaluating the article opted, we will employ Cochrane RCT evaluation criteria. Additionally, data analysis will be executed with Stata 15.0. Similarly, subgroup analysis along with sensitivity analysis, in addition to meta-regression will be used for detecting the sources of heterogeneity. In the same vein, publication bias will be identified with the help of Egger’s Test or Begg’s Test in a quantitative manner. Conclusion: BYSOL has the efficacy to curb the symptoms as well as recurrence of CRS in the course of clinical trials, however, it arises the need for adopting evidence-based medicine in order to offer robust evidence for its efficacy and safety. Therefore, we aim to supply the evidence. OSF Registration number: DOI 10.17605/OSF.IO/RNC3J（https://osf.io/rnc3j/）. Abbreviations: CRS = Chronic rhinosinusitis, PRISMA-P = Systematic Review and Meta-Analysis Protocols, TCM = traditional Chinese medicine, BYSOL = Biyuanshu oral liquid.

The aim of this work is to analyze the thermal control performance of the coatings prepared on Ti6Al4V alloys by plasma electrolytic oxidation (PEO) under different electric parameters in zirconate electrolytes. The composition and structure of the coatings were examined by X-ray diffraction (XRD), scanning electron microscopy (SEM), thickness measurement gauge and roughness measuring instrument, respectively. The infrared emissivity and solar absorptance of the ceramic coatings were evaluated by the UV–vis–NIR spectrophotometer and infrared reflectometer. The results show that the coatings have typical porous structure and the main phase composition is KZr2(PO4)3 phase. With the increase of current density, extension of duty ratios and decrease of working frequency, the absorptance (αs) decreases and the emissivity (e) increases, due to the increase of the real surface area for radiating energy of coating and the thicker coating composed of nonmetallic inhibiting the absorptance of solar energy. Besides, the thermal shock tests and repeated experiments show outstanding thermal stability of coatings and satisfactory reusability of the electrolyte. In general, the coatings have better thermal control performance than the other coatings in the previous reports, and the above results indicate that the coatings prepared in this work have significantly promising industrialization potential in spacecraft field.

The needle-type droplet jetting dispenser has wide applications in the field of microelectronic packaging, and for which the good quality of droplet formation and separation is the key to successful dispensing. This paper simulates the droplet jetting process which has been divided into 5 stages named backflow, growth, droplet extension, breakage, and separation, and analyses the combined effects of system parameters, such as pressure, viscosity, needle stroke, and nozzle diameter, on the changes of morphologies of ejected droplets, which is verified by experiments. The simulation and experiment results show that a higher driving pressure is quite suitable for the high-viscosity liquid to form normal droplets by avoiding adhesion. When increasing the needle stroke, the pressure should also be lowered properly to prevent the flow-stream. Besides, the nozzle with a large diameter is much more likely to cause sputtering or satellite-droplet problems. The results have a great significance for guiding the parameter settings of the needle-type dispensing approach.