KR20200069222A - 물질의 판별 및 분석 방법 - Google Patents
물질의 판별 및 분석 방법 Download PDFInfo
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Abstract
본 발명에 따른 방법은, (a) 2 이상의 원소를 선택하는 단계; (b) 상기 2 이상의 원소로 생성 가능한 것으로 분석된 복수의 화합물의 데이터를 수집하는 단계; (c) 상기 수집된 복수의 화합물 각각에 관한 이미지 또는 스펙트럼 형태의 분석 데이터를 준비하는 단계; (d) 상기 복수의 화합물 중에서, 2종 이상의 화합물을 선택하여 소정의 혼합 비율로 혼합하고, 상기 각각 이미지 또는 스펙트럼 데이터를 상기 소정의 혼합 비율에 맞추어 혼합 가공한 것을 포함하여 훈련 데이터를 만드는 단계; (e) 상기 훈련 데이터를 사용하여 기계 학습을 수행하는 단계; 및 (f) 실제 물질로부터 얻은 이미지 또는 스펙트럼 형태의 분석 데이터를 상기 기계 학습을 통해 수득한 모델을 사용하여 판별 및/또는 분석하는 단계를 포함한다.
Description
도 2는 본 발명의 실시예에서 사용된 화합물을 나타낸 것이다.
도 3은 본 발명의 일 실시형태에 따라, ICSD 결정구조 데이터로부터 XRD 구성 파라미터를 이용하여 특정 화합물의 XRD 데이터를 계산하여 도출하는 단계를 설명하는 도면이다.
도 4는 분석하고자 하는 성분을 포함하는 무기 화합물인 Al2O3, Li2O, SrO 및 SrAl2O4의 실제로 분석한 XRD 패턴과, 상기 방법을 통해 시뮬레이션된 XRD 패턴을 비교한 것이다.
도 5는 각 화합물의 혼합 데이터를 도출하는 과정을 나타낸 것이다.
도 6은 도 5에서 도출된 혼합 비율에 맞추어 XRD 데이터를 가공하는 과정을 나타낸 것이다.
도 7은 혼합 XRD 데이터를 도출하는 구체적인 조건을 나타낸 것이다.
도 8은 본 발명의 실시예에서 딥러닝에 사용한 제1 CNN 아키텍쳐를 나타낸 것이다(a는 CNN2, b는 CNN3).
도 9는 본 발명의 실시예에서 딥러닝에 사용한 제2 CNN 아키텍쳐를 나타낸 것이다.
도 10은 'Dataset_800k_org'를 사용한 경우 학습 코스트 및 정확도를 나타낸 것이다.
도 11은 'Dataset_800k_rand' 및 'Dataset_180k_rand'를 사용한 경우 학습 코스트 및 정확도를 나타낸 것이다.
| CNN 아키텍처 | Dataset_80K_org | ||
| CNN2 | CNN3 | ||
| 상 판별 (2 Epochs) |
시뮬레이션 XRD 테스트 데이터세트 |
||
| 100,000 패턴 | 99.60% | 100% | |
| 실제 XRD 테스트 데이터세트 |
|||
| Li2O_SrO_Al2O3 (50 패턴) |
100% | 100% | |
| SrAl2O4_SrO_Al2O3 (50 패턴) |
97.33% | 98.67% | |
| CNN 아키텍처 | Dataset_80K_rand | Dataset_18K_rand | |
| CNN3 | CNN3 | ||
| 상 판별 (2 Epochs) |
시뮬레이션 XRD 테스트 데이터세트 | ||
| 100,000 패턴 | 100% | (23,000 패턴) 99.76% |
|
| 실제 XRD 테스트 데이터세트 |
|||
| Li2O_SrO_Al2O3 (50 패턴) |
100% | 98.67% | |
| SrAl2O4_SrO_Al2O3 (50 패턴) |
98% | 97.33% | |
Claims (5)
- (a) 2 이상의 원소를 선택하는 단계;
(b) 상기 2 이상의 원소로 생성 가능한 것으로 분석된 복수의 화합물의 데이터를 수집하는 단계;
(c) 상기 수집된 복수의 화합물 각각에 관한 이미지 또는 스펙트럼 형태의 분석 데이터를 준비하는 단계;
(d) 상기 복수의 화합물 중에서, 2종 이상의 화합물을 선택하여 소정의 혼합 비율로 혼합하고, 상기 각각 이미지 또는 스펙트럼 데이터를 상기 소정의 혼합 비율에 맞추어 혼합 가공한 것을 포함하여 훈련 데이터를 만드는 단계;
(e) 상기 훈련 데이터를 사용하여 기계 학습을 수행하는 단계; 및
(f) 실제 물질로부터 얻은 이미지 또는 스펙트럼 형태의 분석 데이터를 상기 기계 학습을 통해 수득한 모델을 사용하여 판별 및/또는 분석하는 단계를 포함하는, 물질의 판별 및 분석방법. - 제1항에 있어서,
상기 복수의 화합물의 분석 데이터는, 기존에 분석되어 있는 화학분석, 물질분석 데이터를 이용하는, 물질의 판별 및 분석방법. - 제1항에 있어서,
상기 복수의 화합물에 관하여 각각의 이미지 또는 스펙트럼 형태의 분석 데이터를 준비하는 단계는, 실제 분석된 결과를 사용하거나, 각각의 화합물에 관한 물질 정보를 이용하여 프로그램을 사용하여 해당 분석 이미지 또는 스펙트럼을 시뮬레이션하여 획득하는, 물질의 판별 및 분석방법. - 제1항에 있어서,
상기 이미지 또는 스펙트럼 형태의 분석 데이터는, XRD 데이터, XPS 데이터, IR 데이터 또는 투과전자현미경 회절 패턴인, 물질의 판별 및 분석방법. - 제1항에 있어서,
상기 기계 학습은 CNN(Convolutional Neural Network)을 통해 수행되는, 물질의 판별 및 분석방법.
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| JP2019221081A JP6925655B2 (ja) | 2018-12-06 | 2019-12-06 | 物質の分析装置 |
| US16/705,890 US11449708B2 (en) | 2018-12-06 | 2019-12-06 | Method of identification and analysis for materials |
| EP19217932.3A EP3671553A1 (en) | 2018-12-19 | 2019-12-19 | Method of identification and analysis for materials |
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| KR102697843B1 (ko) * | 2023-12-06 | 2024-08-22 | 이강록 | 방향화합물 혼합물의 성분 분석 방법 |
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| KR102680207B1 (ko) * | 2023-10-24 | 2024-07-02 | 한국지질자원연구원 | 감마선을 이용한 심해퇴적물의 희토류 자원량 예측 시스템 및 방법 |
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| JP2000516342A (ja) * | 1996-08-22 | 2000-12-05 | イーストマン ケミカル カンパニー | ラマン分光法による化学組成物のオンライン定量分析 |
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Non-Patent Citations (1)
| Title |
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| Felipe Oviedo 등, Fast classification of small X-ray diffraction datasets using physics-based data augmentation and deep neural networks, NIPS 2018, pp1-11, 2018.11.20.* * |
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| KR102697843B1 (ko) * | 2023-12-06 | 2024-08-22 | 이강록 | 방향화합물 혼합물의 성분 분석 방법 |
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