| Existence and characterization of optimal control in mathematics model of diabetics population AH Permatasari, RH Tjahjana, T Udjiani Journal of Physics: Conference Series 983, 012069, 2018 | 19 | 2018 |
| Joint decision on integrated supplier selection and stock control of inventory system considering purchase discount W Widowati, S Sutrisno, R Tjahjana International Journal of Supply Chain Management 6 (4), 61-69, 2017 | 16 | 2017 |
| Piecewise objective optimisation model for inventory control integrated with supplier selection considering discount Sutrisno, Widowati, RH Tjahjana International Journal of Logistics Systems and Management 38 (1), 65-78, 2021 | 11 | 2021 |
| Forecasting retail sales based on cheng fuzzy time series and particle swarm optimization clustering algorithm R Ariyanto, RH Tjahjana, T Udjiani Journal of Physics: Conference Series 1918 (4), 042032, 2021 | 9 | 2021 |
| Global stability for linear system and controllability for nonlinear system in the dynamics model of diabetics population AH Permatasari, RH Tjahjana, T Udjiani Journal of Physics: Conference Series 1025 (1), 012086, 2018 | 9 | 2018 |
| Pengaruh penggunaan binder terhadap densitas dan kalor pembakaran briket dari limbah sagu H Widiyandari, W Setiabudi, A Subagio, S Haryanti, P Siahaan, ... Indonesian Journal of Applied Physics 3 (2), 188, 2013 | 8 | 2013 |
| Single Product Inventory Control Considering Unknown Demand Using Linear Quadratic Gaussian RH Tjahjana 2018 IEEE International Conference on Robotics, Biomimetics, and Intelligent …, 2018 | 6 | 2018 |
| Fuzzy expected value based model to solve integrated supplier selection and inventory control problem in fuzzy environment W Sutrisno, RH Tjahjana International Journal Supply Chain Management 7 (3), 24-30, 2018 | 6 | 2018 |
| Modeling cd4+ t cells and ctl response in hiv-1 infection with antiretroviral therapy S Sutimin, S Sunarsih, R Tjahjana Communication in Biomathematical Sciences 1 (2), 100-109, 2018 | 6 | 2018 |
| Optimal strategy for supplier selection problem integrated with optimal control problem of single product inventory system with piecewise holding cost RH Tjahjana Journal of Physics: Conference Series 893 (1), 012067, 2017 | 6 | 2017 |
| Multi flying vehicle control for saving fuel RH Tjahjana, PS Sasongko Applied Mathematical Sciences 8 (15), 733-742, 2014 | 6 | 2014 |
| The cross-association relation based on intervals ratio in fuzzy time series E Vianita, M Sam’an, AN Haikal, IS Mufaricha, RH Tjahjana, T Udjiani International Journal of Electrical and Computer Engineering 13 (2), 2040-2051, 2023 | 5 | 2023 |
| Local stability analysis for tuberculosis epidemic with SI1I2R model FA Taqiya, RH Tjahjana, RHS Utomo, R Herdiana, AH Permatasari Journal of Physics: Conference Series 1943 (1), 012132, 2021 | 5 | 2021 |
| Optimal control modelling of COVID-19 outbreak in semarang city Indonesia D Mahardika, RH Tjahjana, S Sunarsih Journal of Fundamental Mathematics And Applications (JFMA) 3 (2), 158-169, 2020 | 5 | 2020 |
| Some methods for identifying redundant constraints in linear programming Y Estinmgsih, RH Tjahjana Journal of Physics: Conference Series 1321 (2), 022073, 2019 | 5 | 2019 |
| Modified Stojkovic-Stanimirovic method to find redundant constrains in linear programming problems Y Estiningsih, RH Tjahjana Journal of Physics: Conference Series 1321 (2), 022074, 2019 | 5 | 2019 |
| Expected value analysis for integrated supplier selection and inventory control of multi-product inventory system with fuzzy cost S Sutrisno, W Widowati, R Tjahjana AIP Conference Proceedings 1913 (1), 2017 | 5 | 2017 |
| On The Optimal Control Computation of Linear Systems H Tjahjana, I Pranoto, H Muhammad, J Naiborhu Journal of the Indonesian Mathematical Society, 13-20, 2009 | 5 | 2009 |
| Application of Robust Linear Quadratic Control for Inventory System with Unknown Demand: Single Product Case RH Tjahiana 2018 2nd International Conference on Informatics and Computational Sciences …, 2018 | 4 | 2018 |
| Dynamic optimization approach for integrated supplier selection and tracking control of single product inventory system with product discount RH Tjahjana IOP Conference Series: Materials Science and Engineering 166 (1), 012028, 2017 | 4 | 2017 |
WidowatiUniversitas Negeri Semarang在 mail.unnes.ac.id 的电子邮件经过验证
