1, there are generally three articles, and one of the two published articles is the core, but it also depends on what level of professional title is being evaluated now, whether it is a lecturer, a subtropical high or a positive high, and each level is different. One intermediate article and three advanced articles are enough. Advanced articles are best accompanied by patents or achievements. Intermediate titles need three papers, and senior titles need five articles, depending on the requirements of title documents. You can send one or two more. Publishing papers is a common phenomenon both during master's degree and after work.
2. Generally speaking, senior professional titles have higher requirements for journals published in papers than journals published in titles of papers. The higher the level of journals, the higher the quality of papers. As far as I know, the general evaluation of senior titles needs to be published in core journals. Different provinces have different regulations, generally more than three. The document stipulates that more than 3 professional papers will be published in academic journals at or above the provincial level after the intermediate level.
3. For senior titles, different industries and enterprises have different requirements for publishing papers, such as universities and hospitals, which are stricter than ordinary units, and state-owned enterprises are stricter than private enterprises. For a senior professional title, if it is an enterprise, generally 2-3 papers in provincial journals are enough, or 2 papers in national journals, or 1 paper in core journals is enough. If it is a university or other strict unit, it may be necessary to publish core journals.