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Fazlina Ahmat Ruslan,Ramli Adnan,Abd Manan Samad,Zainazlan Md Zain 제어로봇시스템학회 2012 제어로봇시스템학회 국제학술대회 논문집 Vol.2012 No.10
Particle filter is a Monte Carlo simulation method that designed to approximate nonlinear problem and tracks the state of the dynamic system. Over the past decade, particle filters have been successfully applied in wide variety of applications. By using geographical information system (GIS) database, particle filter applications involve tracking of underwater (UW) vessels, surface ships, cars and aircraft. Particle filter also contributed in robotics community, where the algorithm can solve the simultaneous localization and mapping (SLAM) problem. Since multiple targets can be tracked from a video stream using particle filter, visual tracking is another interesting application of particle filter. However, particle filter is rarely used in the flood water level prediction and tracking applications. This paper proposes flood water level prediction and tracking using Sampling Importance Resampling (SIR) particle filter which is one of particle filter variations. As the effectiveness of the particle filter depends on the parameters stated in the algorithm, the parameters are varied to analyze the performance result. The parameters are number of particles and number of time step. From the simulation, the performance result of particle filter is quite impressive to look into.
Wang Qiang,Wang Mei‐Na,Jia Zun‐Zun,Ahmat Tursun,Xie Lin‐Jie,Jiang Wei‐Hua 한국곤충학회 2020 Entomological Research Vol.50 No.4
The occurrence of Bemisia tabaci poses an increasingly serious threat to cotton and vegetable crops in Xinjiang, China. Currently, neonicotinoid insecticides are commonly used to control the insect, to which resistance is inevitable due to intensive use. However, the resistance status and mechanism of B. tabaci to neonicotinoid insecticides in Xinjiang are poorly understood. Cytochrome P450 monooxygenases represent a key detoxification mechanism in the neonicotinoid resistance of B. tabaci. In this study, the resistance level to imidacloprid and thiamethoxam was investigated using the leaf dipping method in five field populations of B. tabaci from Turpan (TP, two sampling sites), Shache (SC), Hotan (HT) and Yining (YN) in northern and southern Xinjiang. The expression changes of eighteen cytochrome P450 genes from the select B. tabaci populations were determined by real-time fluorescence quantitative PCR (qPCR). The bioassay revealed that the five populations tested had developed moderate to high levels of resistance to imidacloprid (12.26–46.07- fold), while the populations remained sensitive to thiamethoxam except for HT, which had a low level of resistance. The qPCR results showed that the expression levels of five P450 genes, CYP4G68, CYP6CM1, CYP303A1-like, CYP6DZ7 and CYP6DZ4, were significantly higher in some resistant field populations than in the susceptible strain. Resistance to imidacloprid in field populations of B. tabaci might be associated with the increased expression of these five cytochrome P450 genes. The results are useful for further understanding the mechanism of neonicotinoid resistance and will contribute to the management of insecticide-resistant B. tabaci in Xinjiang.
유성기어 소음을 고려한 pRMC 프로그램 개발 및 적용에 관한 연구
이현구(Lee, Hyun Ku),김무석(Kim, Moo Suk),서현승(Suh, Hyun Seung),김진호(Kim, Jin Ho),칼만아멧(Kahraman, Ahmat),하리안또자니(Harianto, Jonny),권현식(Kwon, Hyun Sik) 한국소음진동공학회 2013 한국소음진동공학회 논문집 Vol.23 No.7
To design the optimized low noise planetary gear sets, a program called pRMC(planetary run many cases) is developed. The pRMC is especially using a combination analysis method for all gear specifications and also able to analyze any type of planetary gear sets. The pRMC is composed of the 5 sections those are generate, setting, evaluate, combine and analysis. After calculating all candidate gear sets, the pRMC could show many results that represent the character of each gear set including the transmission error which is the main gear noise factor, the contact ratios, the bending stress and so on. By comparing the results objectively, user could predict and select the optimized gear set which has quiet noise level and desired durability. The planetary gear designed by pRMC could have reduced noise and vibration level from 5 to 10 dB than previous-designed one.
Kai-Yun Fu,Qing-Wei Meng,Feng-Gong Lüa,Wen-Chao Guo,Tursun Ahmat,Guo-Qing Li 한국응용곤충학회 2015 Journal of Asia-Pacific Entomology Vol.18 No.2
The basic helix–loop–helix (bHLH) transcription factors possess crucial functions in cell proliferation, determination, differentiation, cell cycle maintenance and homeostasis or stress response pathways. Since a few juvenile hormone analogues such as hydroprene, methoprene and pyriproxyfen targeting a bHLH member Met are already registered for pest management, there is a potential to develop more insecticides targeting various bHLHs. The identification of bHLH members is the first step. Based on the transcriptome and the genome of the Colorado potato beetle Leptinotarsa decemlineata, the most important pest in potato, 49 bHLH members were identified. All LdbHLH memberswere defined by their names and families according to various phylogenetic analyses with bHLH homologues of Drosophila melanogaster, Apis mellifera, Bombyx mori and Tribolium castaneum. Among these LdbHLHs, 17, 10, 10, 1, 10 and 1 members belonged to A, B, C, D, E and F high-order groups, respectively. The results would provide useful background information for future studies on functions of bHLH proteins in the regulation of L. decemlineata development. Moreover, the bHLHs could serve as potential insecticide targets. These proteins could be used in small molecule screen, or in the development of RNAi-based pest management methods.
컨셉 단계 유성기어 소음 개발을 위한 pRMC 프로그램 개발 및 적용에 관한 연구
이현구(Hyunku Lee),김무석(Moosuk Kim),이상화(Sanghwa Lee),서현승(Hyunsueng Suh),백상범(Sangbum Baek),칼만아멧(Ahmat Kahraman) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
To predict the optimized planetary gear sets that have quite gear noise in early design stage, Planetary Run Many Cases(here after pRMC) program which is using the combination analysis method of all gear specifications to find out the best planetary gear specification is developed. The pRMC is composed of 5 steps, generate, setting, evaluate, combine and analysis and been also capable of analyzing any number of simple, compound or complex-compound planetary gear set. After calculating of all candidate gear sets, pRMC could show some results likewise transmission errors, sum of forces, contact ratios and so on. By using the pRMC, the best planetary gear sets which have low noise level could be developed easily and successfully in the new automatic transmissions and others.
Two New Flavanones from the Leaves of Flemingia lineata (L.) Aiton
Mulyadi Tanjung,Tjitjik Srie Tjahjandarie,Shola Mardhiyyah,Ghinsha Zakatina Rahman,Muhammad Fajar Aldin,Ratih Dewi Saputri,Norizan Ahmat 한국생약학회 2022 Natural Product Sciences Vol.28 No.1
Three isoprenylated flavanones were isolated from the leaves of Flemingia lineata (L.) Aiton. Among them are two new flavanones, flemilineatins A and B (1-2), along with 6-isoprenyl eridioctyol (3). Their structures were determined using HRESIMS data and NMR spectra. Flavanones 1-3 were assayed in the HeLa cancer cells. Compound 1 showed moderate activity with an IC50 value of 11.2 µM.
Two New Flavanones from the Leaves of Flemingia lineata (L.) Aiton
Tanjung, Mulyadi,Tjahjandarie, Tjitjik Srie,Mardhiyyah, Shola,Rahman, Ghinsha Zakatina,Aldin, Muhammad Fajar,Saputri, Ratih Dewi,Ahmat, Norizan The Korean Society of Pharmacognosy 2022 Natural Product Sciences Vol.28 No.2
Three isoprenylated flavanones were isolated from the leaves of Flemingia lineata (L.) Aiton. Among them are two new flavanones, flemilineatins A and B (1-2), along with 6-isoprenyl eridioctyol (3). Their structures were determined using HRESIMS data and NMR spectra. Flavanones 1 - 3 were assayed in the HeLa cancer cells. Compound 1 showed moderate activity with an IC<sub>50</sub> value of 11.2 μM.