In this paper, we first prove that the heat equation backward in time with Neumann and integral boundary conditions is an ill-posed problem. Then, we establish a stability estimate of Hölder type for...

Author: Duc Duc Van

Keyword: The heat equation backward in time stability estimate ill-posed problem.

The research was conducted to complete technological protocol of biomass production of algae Nannochloropsis oculata with both culture methods in plastic bags and photo-bioreactor systems. The results...

Author: Thiet Chu Chi, Thuy Nguyen Thi Le, Anh Tran Thi Ngoc, Cuong Ho Viet, Dung Pham My, Thanh Nguyen Thi

Keyword: Nannochloropsis sp aquatic food functional foods

The global economy is significantly impacted by changes in the price of primary commodities. As a result, both the academic and professional sectors have paid attention to price predictions for major...

Author: Son Nguyen Thai

Keyword: Primary Commodities Price Forecasting GMDH ANFIS ANN LSTM

The study aimed to develop and validate the quantitative procedure of lead and cadmium in tuberous roots of Rehmannia glutinosa varietes 19 by atomic absorption spectroscopy. Research results show...

Author: Loan Pham Thanh

Keyword: Cadmium lead quantification atomic absorption spectroscopy Rehmannia glutinosa varietes 19.

The Max-Cover is a NP-hard problem. Therefore, the heuristic approach is suitable to solve this problem for large instances. Quantum annealing is a heuristic quantum optimization algorithm that can be...

Author: Uyen Nguyen Thi, An Nguyen Canh, Trang Do Mai, Sang Tran Xuan

Keyword: Quantum computing Quantum Annealing Max-Cover problem