国家科技图书文献中心 杭州服务站
首页
资源导航
特色服务
知识发现
关于我们
检索
代查代借

检索历史
浏览历史

订阅
收藏
0 申请单

个人中心
账号设置
充值
全部 |
  • 全部
  • 题名
  • 作者
  • 机构
  • 关键词
  • NSTL主题词
  • 摘要
检索 二次检索 AI检索
高级检索
外文文献 中文文献
筛选条件：

共搜索到3677条信息
?

1. Stability Analysis of The SVLI1I2QR Type COVID-19 Spread Model NSTL国家科技图书文献中心

Jonner Nainggolan -  《The 3rd International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology (ICON-SMART2022) : mathematical physics and biotechnology for education, energy efficiency, and marine industries : Kuta, Indonesia, 3-4 June 2022》 -  International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology - 2024, - 020009-1～020009-7 - 共7页

摘要：In this paper, the population was divided into |  seven subpopulations, namely susceptible (S | ), vaccination (V), exposed (L), infected not reported (I_1 | ), infected reported (I_2), quarantine (Q) and recovered (R | ) subpopulations. Analytical study on the COVID-19 model, to
关键词： Stability Analysis |  subpopulation increases |  subpopulation infected
文献传递获取全文
文献传递
收藏

2. Forecasting Indonesian Coal Price Using Hybrid Transfer Function-Machine Learning with Exogenous Variables NSTL国家科技图书文献中心

Ika Nur Laily Fitria... |  Irhamah... -  《The 3rd International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology (ICON-SMART2022) : mathematical physics and biotechnology for education, energy efficiency, and marine industries : Kuta, Indonesia, 3-4 June 2022》 -  International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology - 2024, - 020003-1～020003-8 - 共8页

摘要：An accurate forecasting model for future coal |  prices is crucial because coal is the critical raw |  material for energy production and the primary energy |  source. Forecasting coal prices will assist the |  government in formulating energy policy and achieving
关键词： USD |  IDR |  Exogenous Variables
文献传递获取全文
文献传递
收藏

3. Effect of Calcination Temperature on Size and Adsorption Properties of Magnetite Nanoparticles Synthesized from Iron Sand as Adsorbent for Methylene Blue NSTL国家科技图书文献中心

Henry F. Aritonang |  Lawirna Batawi... -  《The 3rd International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology (ICON-SMART2022) : mathematical physics and biotechnology for education, energy efficiency, and marine industries : Kuta, Indonesia, 3-4 June 2022》 -  International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology - 2024, - 050001-1～050001-10 - 共10页

摘要：The potential and distribution of iron sand in |  Indonesia can be found on various beaches, including Hais |  Beach, which is located in Southeast Minahasa Regency | , North Sulawesi Province. However, the iron sand is not |  used optimally. Therefore, the purpose of this study
关键词： MB |  Effect |  Calcination Temperature
文献传递获取全文
文献传递
收藏

4. Subsurface View of Mount Talang Area Based on Magnetic Data as A Preliminary Geothermal Prospective NSTL国家科技图书文献中心

Ardian Putra |  Hanif Hidayat... -  《The 3rd International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology (ICON-SMART2022) : mathematical physics and biotechnology for education, energy efficiency, and marine industries : Kuta, Indonesia, 3-4 June 2022》 -  International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology - 2024, - 030009-1～030009-8 - 共8页

摘要：This paper depicted the subsurface structure |  in geothermal prospective area in Mount Talang | , West Sumatera, Indonesia. Data were gathered from |  magnetic field yielded from Miligauss Meter at 144 sites |  surrounding Garara Hot Spring. Magnetic anomaly value was
关键词： Subsurface View |  Mount Talang Area |  Magnetic Data
文献传递获取全文
文献传递
收藏

5. Study of Curcumin Degradation Using UV-Vis Spectrophotometry and Density Functional Theory NSTL国家科技图书文献中心

Suprapto Suprapto |  Vicario Baroroh -  《The 3rd International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology (ICON-SMART2022) : mathematical physics and biotechnology for education, energy efficiency, and marine industries : Kuta, Indonesia, 3-4 June 2022》 -  International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology - 2024, - 050014-1～050014-6 - 共6页

摘要：The study of curcumin degradation has been |  carried out by optimizing the effect of pH and solvents |  using the UV-Vis spectrophotometric method. The |  stability of curcumin decreased as pH increased. Curcumin |  was degraded rapidly in alkaline solutions. Curcumin
关键词： DFT |  UV-Vis |  TDDFT
文献传递获取全文
文献传递
收藏

6. Termite Species Diversity and Level of Damage on Tree in Rubber Plantation: A Case Study in West Kalimantan NSTL国家科技图书文献中心

Yuliati Indrayani |  Dina Setyawati... -  《The 3rd International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology (ICON-SMART2022) : mathematical physics and biotechnology for education, energy efficiency, and marine industries : Kuta, Indonesia, 3-4 June 2022》 -  International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology - 2024, - 040008-1～040008-8 - 共8页

摘要：This study was carried out to investigate the |  diversity of termite species and level of damage on tree |  in 25-year-old rubber plantation, Singkawang City | , West Kalimantan, Indonesia. The survey was conducted |  by direct observation of all rubber trees in the
关键词： Termite Species Diversity |  Level |  Damage
文献传递获取全文
文献传递
收藏

7. The Foodstuffs Plants (Wild and Semi-cultivated) Traded in the Kranggan Mas Traditional Market, Bekasi, West Java and Opportunity in Science Learning Implementation NSTL国家科技图书文献中心

Marina Silalahi |  Marisa Christina Tap... -  《The 3rd International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology (ICON-SMART2022) : mathematical physics and biotechnology for education, energy efficiency, and marine industries : Kuta, Indonesia, 3-4 June 2022》 -  International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology - 2024, - 070004-1～070004-11 - 共11页

摘要：Traditional markets are a place for buying and |  selling food plants and a source of local knowledge |  about their use. This study aims to explain food |  plants (wild and semi-cultivated) which are traded in |  traditional markets and their uses. The research method was
关键词： Foodstuffs Plants |  Kranggan Mas Traditional Market |  Bekasi
文献传递获取全文
文献传递
收藏

8. Agronomic Performance and Superior Traits Selection in Indonesian Cowpea (Vigna unguiculata [L.] Walp.) Local Varieties Using Genotype by Yield Trait Biplot NSTL国家科技图书文献中心

Ayda Krisnawati |  M. Muchlish Adie -  《The 3rd International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology (ICON-SMART2022) : mathematical physics and biotechnology for education, energy efficiency, and marine industries : Kuta, Indonesia, 3-4 June 2022》 -  International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology - 2024, - 040012-1～040012-6 - 共6页

摘要：Cowpea is an important legume crop that grows |  throughout the world, primarily in tropical and subtropical |  regions, and has a high potential for food and |  nutritional security. The study aims to identify the |  performance and the relationship between agronomic traits
关键词： GYT |  Agronomic Performance |  Superior Traits Selection
文献传递获取全文
文献传递
收藏

9. Analysis of Reservoir Porosity Calculation Using Log Transform in Alpabeta Field, Bintuni Basin NSTL国家科技图书文献中心

Suwondo |  Warto Utomo... -  《The 3rd International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology (ICON-SMART2022) : mathematical physics and biotechnology for education, energy efficiency, and marine industries : Kuta, Indonesia, 3-4 June 2022》 -  International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology - 2024, - 020022-1～020022-9 - 共9页

摘要：The Alpabeta is an old hydrocarbon field in |  the Bintuni Basin, West Papua. This field was |  discovered in the Dutch era and have been producing oil |  until now. The study target is carbonate reservoir in |  Kais Formation of Bintuni Basin. For field future
关键词： Analysis |  Alpabeta Field |  Bintuni Basin
文献传递获取全文
文献传递
收藏

10. Balinese Script Transliteration: A Preliminary Study NSTL国家科技图书文献中心

Stephanus Felix Sury... |  Anastasia Rita Widia...... -  《The 3rd International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology (ICON-SMART2022) : mathematical physics and biotechnology for education, energy efficiency, and marine industries : Kuta, Indonesia, 3-4 June 2022》 -  International Conference on Natural Sciences, Mathematics, Applications, Research, and Technology - 2024, - 020024-1～020024-8 - 共8页

摘要：A Balinese script is one of the cultural |  relics of our ancestors and can be found in palm leaves | . However, today Balinese script is abandoned along with |  the increasing use of the Roman script. Some efforts |  are needed for continuous socialization by
关键词： Balinese Script Transliteration |  Preliminary Study |  machine learning technique
文献传递获取全文
文献传递
收藏

相关推荐

检索结果集分析
检索结果集分析
结构化综述分析
检索条件出处：education sciences

  • 检索词扩展

NSTL主题词

  • NSTL学科导航

服务站

成员单位

友情链接

NSTL官方微信

官方微信

NSTL安卓APP

安卓APP

服务热线：

4008-161-200 800-990-8900

国家科技图书文献中心

国家科技图书文献中心

京ICP备10027328号

© Copyright(C)2023 NSTL.All Rights Reserved 版权所有

杭州服务站

0571-85112211；0571-85058943zj85112211@163.com

地址：浙江省杭州市滨江区信诚路572号 科技大市场A座318室

页面总访问量：32313446