Physical Sciences and Engineering

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Chinese food cultureina bite of china: a multi-model discourse analysis

The study of monomodal language in discourse linguistics needs to be combined with other fields, such as visual, auditory and media studies. Diet is closely related to culture, and diet culture is an important part of the splendid culture of China, which is the concentrated expression of people's production and lifestyle for thousands of years. It reflects people’s attitude towards life, and also represents the spirit and temperament of a nation. Chinese culture is of long standing and well established, and cultures in different fields have their own particularities.

Effect of high voltage stimulation on pressure ulcers healing: (systematic review)

Background: The use of High voltage stimulation in patients with pressure ulcers is very important, and thus the scientific evidence for its effectiveness needs to be evaluated through a systematic review. Objective: To provide updated evidence-based guidance for High voltage stimulation effects on the healing of pressure ulcers.

Design of lithium battery control system based on single chip microcomputer

Charging and discharging of lithium batteries and their safety performance are one of the key indicators to determine their working ability. The state monitoring system of lithium battery pack designed in this paper not only fully meets the requirements of production, but also fully reflects the characteristics of reliability and cost-effective ratio. The system is based on single chip computer control, and fully considers charge and discharge signal monitoring, temperature signal monitoring, discharge maintenance and charge equalization in the design.

Identification of the advantages of laser ablation method for preparing the Nanomaterials: efficient, reliable and cost-effective

Laser ablation mechanism focuses a laser beam on a substrate for the removal of any surface material. The removed mass relies on the material itself, pulse length, intensity power and laser wavelength. Numerous benefits of laser ablation as compared to the traditional nanomaterials’ processes are utilized for the determination of chemical’s concentration level, their incidence or more specifically of the surface material. However, the substitute solutions go through a procedure of multiple steps which is hazardous for environment, time taking, obstinate and expensive.

Information And Communication Technologies In Education: Availability And Uptake In Yenagoa Metropolis, Bayelsa State Of NIGERIA

The importance of Information and Communication Technologies (ICT) has become so strong in contemporary times. A descriptive survey, the research assessed availability of ICT devices and uptake by teachers in secondary schools in Yenagoa metropolis and make recommendations.43 mathematics teachers were purposively selected for the study; data were collected by questionnaire that has a reliability co-efficient of 0.73 and structured interview. These were cross-tabulated and analyzed using descriptive statistics. Mean scores cum percentages were reported.

Effect of manual versus mechanical lymphatic drainage on total lymphocytic count in healthy subjects

Background: lymphocytes are a main component of the immune system, reaching an optimum level of lymphocytic count may improve immunity in healthy subjects or fasten recovery from diseases; therefore manual lymphatic draining effects were compared to mechanical lymphatic draining. Purpose: This study was conducted to investigate manual lymphatic drainage versus mechanical lymphatic drainage effects on total lymphocytic count in healthy subjects.

Strength characteristic analysis of key components of hydraulic-viscous friction coupler based on ANSYS

Teaching Friction coupler has an important application in the field of mechanical transmission. As typical wet friction transmission equipment, the strength characteristics of key components of the liquid-viscous friction coupler have a key impact on the reliability and service life of the whole friction coupler. Based on the finite element software ANSYS, the stress and deformation fields of the pump wheel and sector are calculated, and the response characteristics under different loads are obtained, which provides a basis for the optimal design of friction couplers.

Review and study on common vibration faults of gear pairs

There are many factors causing gear failure, which has an important impact on the working life of rotating machinery. The causes and characteristics of common faults of gears are analyzed, and different types of faults are detected by means of vibration waves. Aiming at the contact faults of gear pairs, the vibration testing equipment is used to diagnose the faults. The results show that there are significant differences among different types of fault waveforms. This method has high reliability and good economic and social benefits.

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