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  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">research-focus</journal-id>
      <journal-title-group>
        <journal-title>Research Focus International Scientific Journal</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Research Focus</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="epub" publication-format="electronic">2181-3833</issn>
      <publisher>
        <publisher-name>Ilm-fan va innovatsiyalar akademiyasi</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.66073/researchfocus.v4i5.1612</article-id>
      <article-id pub-id-type="other" assigning-authority="relibrary.uz">REL-A-012940</article-id>
      <article-categories>
        <subj-group subj-group-type="oak">
          <subject>05.00.00</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">RESPONSE TIME AND RECOVERY TIME OF A SEMICONDUCTOR SENSOR FOR DETECTING METHANE AND NATURAL GAS</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>ВРЕМЯ ОТКЛИКА И ВРЕМЯ ВОССТАНОВЛЕНИЯ ПОЛУПРОВОДНИКОВОГО ДАТЧИКА ДЛЯ ОБНАРУЖЕНИЯ МЕТАНА И ПРИРОДНОГО ГАЗА</trans-title>
        </trans-title-group>
        <trans-title-group xml:lang="uz">
          <trans-title>METAN VA TABIIY GAZNI ANIQLASH UCHUN YARIMO‘TKAZGICHLI SENSORNING JAVOB BERISH VAQTI VA TIKLANISH VAQTI</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group content-type="author">
        <contrib contrib-type="author">
          <string-name>Khodieva Nargiza Djurakulovna</string-name>
          <aff>Assistant at the Samarkand State architectural and civil-engineering university</aff>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Eshkobilova Mavjuda Ergashboyevna</string-name>
          <aff>Associate Professor at the Samarkand State Medical University</aff>
        </contrib>
      </contrib-group>
      <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2025-06-05">
        <day>05</day>
        <month>06</month>
        <year>2025</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2025</year>
      </pub-date>
      <volume>4</volume>
      <issue>5</issue>
      <fpage>46</fpage>
      <lpage>50</lpage>
      <permissions>
        <license xlink:href="https://creativecommons.org/licenses/by/4.0">
          <ali:license_ref>https://creativecommons.org/licenses/by/4.0</ali:license_ref>
          <license-p>This work is licensed under a Creative Commons Attribution 4.0 International License.</license-p>
        </license>
      </permissions>
      <self-uri xlink:href="https://relibrary.uz/REL-A-012940/"/>
      <abstract xml:lang="en">
        <p>The response and recovery times of gas sensors provide insights into their dynamic behavior and are determined through experimental methods. The response time refers to the period needed for the sensor to reach 90% of its final signal value after exposure to a sudden change in gas concentration. This is often labeled as τ₀₉ or τ_response. Conversely, the recovery time, denoted as τ₀₁ or τ_recovery, is the time taken for the sensor to return to 10% of its initial baseline value after the gas is removed and clean air is introduced.</p>
      </abstract>
      <trans-abstract xml:lang="ru">
        <p>Время отклика и время восстановления газовых датчиков дают представление об их динамическом поведении и определяются экспериментальными методами. Время отклика относится к периоду, необходимому для того, чтобы датчик достиг 90% от своего конечного значения сигнала после воздействия внезапного изменения концентрации газа. Это часто обозначается как τ₀₉ или τ_response. Наоборот, время восстановления, обозначаемое как τ₀₁ или τ_recovery, представляет собой время, необходимое для того, чтобы датчик вернулся к 10% от своего начального базового значения после удаления газа и введения чистого воздуха.</p>
      </trans-abstract>
      <trans-abstract xml:lang="uz">
        <p>Gaz sensorlarining javob berish va tiklanish vaqtlari ularning dinamik xatti-harakati haqida tasavvur beradi va eksperimental usullar bilan aniqlanadi. Javob berish vaqti gaz konsentratsiyasining keskin o‘zgarishi ta‘siridan so‘ng sensorning o‘z yakuniy signal qiymatining 90% iga yetishi uchun zarur bo‘lgan davrni bildiradi. U ko‘pincha τ₀₉ yoki τ_response deb belgilanadi. Aksincha, τ₀₁ yoki τ_recovery deb belgilanadigan tiklanish vaqti gaz olib tashlanib, toza havo kiritilgandan keyin sensorning boshlang‘ich bazaviy qiymatining 10% iga qaytishi uchun ketadigan vaqtdir.</p>
      </trans-abstract>
      <kwd-group xml:lang="en">
        <kwd>Nanocomposite metal oxides</kwd>
        <kwd>Gas sensors</kwd>
        <kwd>Methane detection</kwd>
        <kwd>Natural gas sensing</kwd>
        <kwd>Semiconductor sensors</kwd>
        <kwd>SnO₂</kwd>
        <kwd>ZnO</kwd>
        <kwd>WO₃ Sol-gel synthesis</kwd>
      </kwd-group>
      <kwd-group xml:lang="ru">
        <kwd>Нанокомпозитные оксиды металлов</kwd>
        <kwd>Газовые датчики</kwd>
        <kwd>Обнаружение метана</kwd>
        <kwd>Зондирование природного газа</kwd>
        <kwd>Полупроводниковые датчики</kwd>
        <kwd>SnO₂</kwd>
        <kwd>ZnO</kwd>
        <kwd>WO₃ Синтез золь-гель</kwd>
      </kwd-group>
      <kwd-group xml:lang="uz">
        <kwd>Nanokompozit metall oksidlari</kwd>
        <kwd>Gaz sensorlari</kwd>
        <kwd>Metanni aniqlash</kwd>
        <kwd>Tabiiy gazni aniqlash</kwd>
        <kwd>Yarimo‘tkazgichli sensorlar</kwd>
        <kwd>SnO₂</kwd>
        <kwd>ZnO</kwd>
        <kwd>WO₃ Zol-gel sintezi</kwd>
      </kwd-group>
    </article-meta>
  </front>
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