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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-15279</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/15279</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Статьи</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Articles</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Calculation of characteristics for crushing in ball mills</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Расчет характеристик при дроблении на шаровых мельницах</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Zagustin</surname>
            <given-names>A. I.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Загустин</surname>
              <given-names>А. И.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Zagustin</surname>
              <given-names>A. I.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru"> (Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en"> (Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1935-01-01">
        <day>01</day>
        <month>01</month>
        <year>1935</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1935</year>
      </pub-date>
      <volume>10</volume>
      <issue>1</issue>
      <fpage>61</fpage>
      <lpage>70</lpage>
      <history>
        <date date-type="received" iso-8601-date="1934-07-11">
          <day>11</day>
          <month>07</month>
          <year>1934</year>
        </date>
        <date date-type="accepted" iso-8601-date="1934-09-10">
          <day>10</day>
          <month>09</month>
          <year>1934</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1935-01-01">
          <day>01</day>
          <month>01</month>
          <year>1935</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1935 А. И. Загустин</copyright-statement>
        <copyright-statement xml:lang="en">© 1935 A. I. Zagustin</copyright-statement>
        <copyright-year>1935</copyright-year>
        <copyright-holder xml:lang="ru">А. И. Загустин</copyright-holder>
        <copyright-holder xml:lang="en">A. I. Zagustin</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/15279">https://pmi.spmi.ru/pmi/article/view/15279</self-uri>
      <abstract xml:lang="ru">
        <p>Речь идет о тонком измельчении в шаровых мельницах. Приняты две константы, одна из которых относится к структуре вещества и характеризует его распад при ударе, другая - скорость дробления в данных условиях. Мы выводим дифференциальное уравнение для характеристики вещества, решение которого дается. Затем мы переходим к рассмотрению частных случаев и в конечном итоге даем метод определения констант в соответствии с характеристиками материала.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>The subject is fine grinding in ball mills. Two constants are adopted, one of which relates to the structure of the substance and characterizes its disintegration upon impact, the other—the crushing rate under given conditions. We derive a differential equation for the characteristic of the substance, the solution of which is given. We then proceed to consider special cases and ultimately provide a method for determining the constants in accordance with the characteristics of the material.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>-</kwd>
      </kwd-group>
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