A PID Controller of Fish Pond Aerator Based on Optimal Smith Predictor Algorithm

Daping Liang 보안공학연구지원센터 2016 International Journal of Multimedia and Ubiquitous Vol.11 No.2

In the process of freshwater fish farming in pond, the levels of dissolved oxygen must be monitored by creating a closed loop PID control system. But traditional PID controller has weak stability and slow response speed, because dissolved oxygen changes with delay. In this paper, a PID control algorithm with optimal Smith predictor is proposed, to eliminate negative effects caused by delay component. The result of experiment data indicates that the optimal algorithm can reduce settling time and overshoot, and has better robustness and disturbance rejection performance than traditional PID controller. Meanwhile, a hardware circuit design plan based on ARM Cortex-M3 embedded processor is supposed, which gets stronger performance than C51 MCU control system with traditional PID algorithm. The hardware selection and plan design realize high cost performance, it is valuable to small and medium freshwater aquaculture enterprises.

Redox-active 2D porous organic polymers for high-performance supercapacitor

Daping Hu,Yuhang Jia,Shaopei Yang,Fuyao Huang,Yuman Dong,Pengcheng Du 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.123 No.-

Porous organic polymers (POPs) have been received considerable attention due to their advantages oflarge surface areas, good stability and functionalities, which are considered an ideal electrode materialfor the energy storage device that has been developed and applied in lithium batteries, zinc ion batteriesand supercapacitors. Here we describe the synthesis of four kinds of redox-active 2D POPs via solvothermalSchiff base condensation using aniline oligomers with different chain lengths as building units thatexhibit reversible electrochemical processes. Among them, the Tp-AT-POP based on 1,3,5-triformylphloroglucinol (Tp) and aniline trimer (AT) deliver high electrochemical performance mainlycontributed by redox units exhibiting high specific capacitance up to 348.3 F/g at a current density of0.5 A/g and possessing excellent cycling stability of 71% after 5000 cycles. In addition, the Tp-AT-POPis developed to assemble a symmetric supercapacitor with specific capacitances of 167 F/g at 0.3 A/gand good cycling stability. This work provides an efficient strategy for developing the redox-active 2DPOPs with aniline oligomer structure for the next-generation advanced high-performance energy storagedevice.

論孫悟空性格的來源

肖大平(XIAO, DAPING) 한국중어중문학회 2015 中語中文學 Vol.61 No.-

손오공은 오승은의 《서유기》에서 심혈을 기울여 창조한 선명한 개성을 지닌 캐릭터이다. 《서유기》에서 묘사된 손오공은 개성이 강하고, 스스로의 탁월한 능력을 통해 만물을 부리며, 고집스럽고 사나운 성격을 가진 형상으로 나타난다. 손오공의 이런 성격이 가장 두드러지게 나타나는 부분이 바로 <大?天?> 이야기이다. 또한, 그의 성격 중에는 유머러스하고 골계미가 넘치며 익살스러운 부분도 찾아볼 수 있다. 이는 《서유기》에서 수 없이 보이는 손오공의 우스개와 다른 사람을 놀리거나 짖궂은 장난을 치는 대목을 통해 엿볼 수 있다. 마지막으로 그의 성격 중 총명하고 뛰어난 능력이 드러나는 부분도 있다. 요괴를 제압하는 취경 과정에서 손오공은 降妖除魔 의 책략과 전술을 항상 중시하고 또 많이 활용했는데, 여기서 그의 총명함과 능력이 가장 뚜렷하게 드러난다. 학계에서 손오공에 대한 많은 연구성과가 있었으나, 손오공 인물 성격의 기원문제에 대해서는 지금까지도 주목을 받지 못한 상태인 것 같다. 필자의 의견으로는 손오공의 이런 성격은 물론 오승은의 소설 《서유기》가 나오기 전에 이미 나타났던 수 많은 취경고사의 텍스트에 등장한 ?行者(《대당삼장취경시화》)나 ?行者(양경현의 잡극 《서유기》)의 성격을 계승한 것도 있지만, 그의 성격의 두 가지 來源(즉 동방삭과 오승은)은 사람들이 주목하지 못한 것 같다. 본 논문에서 분석된 손오공의 성격, 즉 강한 개성과 고집센 성격, 유머러스함과 골계미, 총명함과 기지가 넘치는 등의 성격은 동방삭과 오승은이 모두 가진 성격이다. 다시 말하면 손오공, 동방삭, 오승은 세 인물의 경력과 성격의 측면에서 볼 때 많은 공통점을 발견할 수 있는 것이다. 즉 경력의 측면에서 볼 때 모두가 높은 재능을 가졌지만 重用를 못 받았으며, 성격의 측면에서 보면 탁월한 능력을 가졌기에 강한 개성과 함께 고집스러우며, 자유롭고 유머러스하며 조소를 좋아하는 성격이 이 세 인물에 모두 존재하는 것이다. 이 세 가지 인물들의 경력과 성격 측면의 유사점과 공통점은 우연한 것이 아니고 작가 오승은의 동방삭에 대한 심리적 기호와 관계가 있는 것이다. 소설《서유기》에서 오승은은 손오공의 이미지를 형상화 하는 과정에서 동방삭과 관한 세 이야기를 활용하였다. 동방삭의 ?桃일화를 맨 처음에 차용한 취경이야기 텍스트는 《취경시화》이다. 하지만 “射覆 ”와 “小遺” 이야기는 오승은이 독창적으로 활용한 것이고 《서유기》에서만 볼 수 있는 줄거리이다. 오승은이 동방삭에 대한 기호를 가진 것, 그리고 《서유기》가 나오기 전에 등장한 다른 취경 고사 텍스트에서 ,?方朔의 ?桃 이야기를 이미 활용한 것 등으로 인해 저자 오승은이 《서유기》를 창작할 때 동방삭의 다른 이야기(“射覆 ”와 “小遺”)를 그의 작품 《서유기》에서 활용하는 것을 쉽게 이해하게 되는 것이다. 오승은은 동방삭의 이야기를 《서유기》에서 활용하는 범위을 확장하는 것 뿐만 아니라 심지어 동방삭의 성격도 손오공에게 융합하였다. 《서유기》에서만 등장한 동방삭은 소설의 줄거리에 큰 영향이 없는 것으로 보인데 꼭 등장할 필요가 없는 인물인 동방삭이 소설에서 등장하는 것은 저자가 동방삭의 성격과 일화를 손오공 인물 형상 창조에 활용하며 남아있는 흔적이라고 본다. 뿐만 아니라 손오공의 형상에서 작가 오승은 본인의 성격도 투입되었다. 한마디로 손오공의 이미지에서 동방삭과 오승은 두 인물의 그림자를 엿볼 수 있다. 즉 어느 정도에서 말하자면 동방삭과 오승은의 성격은 손오공의 성격의 기원이라고 본다. 본 연구의 관점이 학계의 손오공 성격의 문제에 대한 연구에 한 가지 참고가 될 수 있기를 바란다. Sunwukong is a image with a distinct character in the novel《Journey to the west(西游?)》by Wu Chengen(?承恩). In the novel ,Sun Wukong is a proud, arrogant and unruly image. Sun Wukong’s this kind of character is described in the novle very distinctly. Besides,he is also very humorous and whimsy. In the novel,we can find so many evidences to prove this kind of character,such as his humorous discourse and whimsy behaviors. Additionally,Sun Wkong is also very wit and resourceful. On the way to the west,the success of surrenderring different kinds of devils depends on the his resourceful stratagems. Although up to now,the academia did so many studies on the image of Sun Wukong,including the study on Sun Wukong’s personalities, people paid no attention to the study on the source of Sun Wukong’s personalities In my opinion, when the writer of the novel 〈Journey to the west〉 wrote this novle ,of course he referred the characters which is from the text before Wu Chengen’s 〈Journey to the west〉, such as Hou xingzhe(?行者) from 〈qujing shihua(取???)〉 and Sun xingzhe(?行者)from Yuan drama〈Journey to the west〉. But besides this,the more important sources is Dong Fangshuo(?方朔) and the writer Wu Chengen’ characters. While up to now poeple didn’t pay attention to it. After figuring out Sun Wukong’s characters, according to the documents, the characters of Dong Fangshuo and Wu Chengen’s characters have also been summarized in the paper. By summarizing we find that there are so many common grounds among Sun Wukong, Dong Fangshuo and Wu Chengen. Firstly their experiences are the same. The three figures are all talented and conceit, but they did not get the recognition from the subordinates. Secondly, because of this kind of experiences, they are all wild and unconstraint. Additinally, all of them are humorous and like kidding others. The similarity among the three figures are not by chance, but there is something with Wu Chengen’s complex about Dong Fangshuo. In the novel 〈Journey to the west〉, three short stories about Dong Fangshuo are used for reference in the novel <Journey to the west> by Wu Chengen. One is the sotry of stealing peaches(?桃),one is the sotry of cover shooting(射覆),and the other is the story of urinating in the imperial palace(小?大殿).The sotry of stealing peachs(?桃)is firstly refered in 《Qujing Shihua (取???)》,but referring the sotry of cover shooting(射覆)and the story of urinating in the imperial palace can be found just in Wu Chengen’ 《Journey to the west》. Becauese of Wu Chengen’complex about Dong Fangshuo and the existence of Dong Fangshuo’s sotry of Stealing peachs (?桃)’s having been referred in the texts before Wu Chengen’《Journey to the west》,it’s easy to comprehend the referrence of Dong Fangshuo’s other sotries, such as the sotry of cover shooting(射覆)and the story of urinating in the imperial palace. When the writer Wu Chengen wrote this novel ,he not only referred Dong Fangshuo’s stories, but also referred Dong Fangshuo’s characters in shaping the image of Sun Wkong .All in all, we an find Dong Fangshuo and Wu Chengen’s shadows from Sun Wkong’S image. I wish this opinion could be a reference of comprehending the question of the source of Sun Wkong’s characters.

淸代戱曲≪雲石會≫中人物原型考論

초대평 ( Xiao Daping ) 중국어문연구회 2017 中國語文論叢 Vol.0 No.83

Yunshihui (雲石會) is a unique traditional opera written by the opera writer Bao Xie (包燮) who lived from Ming dynasty to Qing dynasty. This opera is included in Guben Xiqu Congkan (古本戱曲叢刊) No.5 which is edited by Zheng Zhenduo (鄭振鐸) and Wu Xiaoling (吳曉玲). Under its influence of the operas about the moralistic dram(神仙度脫劇) of Ming and Qing dynasties, there are also many fairy characters coming on stages, besides these, there are also many miraculous events happened in the opera. But what is enjoyable is that besides these fairy characters, there are also many real characters who actually existed in the history, such as Du Yan (杜言), the dumb blonde (啞女), Qiao Yinfu (喬因阜), Mi Yuanzhang (米元章) and so on. In this paper we did a research on the prototype of these characters and by doing the research we also did a investigation and analysis on the writer’s ability on how to deal with the relationship between the real characters. The real historical events and the virtual creation. But until recently, the scholars paid not enough attentions on the traditional opera Yunshihui (雲石會). We can just find that the details of the author of Yunshihui (雲石會)―Bao Xie’s (包燮) life is mentioned in the Mingqing Xiqujia Kaolue (明淸戱曲家考略) by Deng Changfeng (鄧長風). The study on Yunshihui (云石會) can help us to understand the whole feature of the traditional opera creation of Qing dynasty.

Computational load reduction by avoiding the recalculation of angular redundancy in computer‐generated holograms

Jia Jia,Jhensi Chen,Daping Chu 한국전자통신연구원 2019 ETRI Journal Vol.41 No.1

A fast hologram calculation approach is proposed to reduce computational load by avoiding the recalculation of redundancy information. In the proposed method, the hologram is divided into several sub‐holograms that record and reconstruct different views of 3D objects. The sub‐hologram is generated from its adjacent calculated sub‐holograms by only adding the holograms of difference images between an adjacent pair of views. The repetitive information of two adjacent views is called angular redundancy. Therefore, avoiding the recalculation of this angular redundancy can considerably reduce the computational load. Experimental results confirm that the proposed method can reduce the computational time for the statue head, rabbits, and car to 4.73%, 6.67%, and 10.4%, respectively, for uniform intensity, and to 56.34%, 57.9%, and 66.24%, respectively, for 256 levels intensity, when compared to conventional methods.

Sparstolonin B suppresses lipopolysaccharide-induced inflammation in human umbilical vein endothelial cells

Qiaoli Liang,Fang Yu,Xiaodong Cui,Jin-ao Duan,Qinan Wu,Prakash Nagarkatti,Daping Fan 대한약학회 2013 Archives of Pharmacal Research Vol.36 No.7

Sparstolonin B (SsnB) is an isocoumarin compoundisolated from the tubers of both Sparganium stoloniferumand Scirpus yagara. We previously demonstratedthat SsnB blocked the Toll-like receptor (TLR) 2- andTLR4-triggered inflammatory signaling in macrophages byinhibiting the recruitment of MyD88 to the TIR domains ofTLR2 and TLR4. The present study was designed toexamine the effects of SsnB on vascular inflammatoryresponses in human umbilical vein endothelial cells (HUVECs)challenged by lipopolysaccharide (LPS, a TLR4ligand). We found that SsnB dose-dependently attenuatedthe LPS-induced expression of interleukin (IL)-1b andmonocyte chemoattractant protein 1 both at the transcriptionand translation levels in HUVEC. LPS-inducedendothelial cell adhesion molecules, intercellular adhesionmolecular-1 and vascular cell adhesion molecule-1expressions were also reduced by treatment with SsnB. Inaddition, co-incubation with SsnB attenuated THP-1monocyte adhesion to LPS-activated HUVECs. Furthermore,SsnB efficiently suppressed LPS-induced phosphorylationof extracellular -signal-regulated kinase (Erk1/2)and Akt in HUVECs. These findings show that SsnB cansuppress endothelial cell inflammation, suggesting thatSsnB might be suitable for development as a therapeuticagent for inflammatory cardiovascular disease.

Update of|Vcb|from theB¯→D*ℓν¯form factor at zero recoil with three-flavor lattice QCD

Bailey, Jon A.,Bazavov, A.,Bernard, C.,Bouchard, C. M.,DeTar, C.,Du, Daping,El-Khadra, A. X.,Foley, J.,Freeland, E. D.,Gá,miz, E.,Gottlieb, Steven,Heller, U. M.,Kronfeld, A. S.,Laiho, J.,Levkova American Physical Society 2014 PHYSICAL REVIEW D - Vol.89 No.11

B→Dℓνform factors at nonzero recoil and|Vcb|from2+1-flavor lattice QCD

Bailey, Jon A.,Bazavov, A.,Bernard, C.,Bouchard, C. M.,DeTar, C.,Du, Daping,El-Khadra, A. X.,Foley, J.,Freeland, E. D.,Gá,miz, E.,Gottlieb, Steven,Heller, U. M.,Komijani, J.,Kronfeld, A. S.,Laih American Physical Society 2015 PHYSICAL REVIEW D - Vol.92 No.3

B→Kl+l−decay form factors from three-flavor lattice QCD

Bailey, Jon A.,Bazavov, A.,Bernard, C.,Bouchard, C. M.,DeTar, C.,Du, Daping,El-Khadra, A. X.,Foley, J.,Freeland, E. D.,Gá,miz, E.,Gottlieb, Steven,Heller, U. M.,Jain, R. D.,Komijani, J.,Kronfeld American Physical Society 2016 Physical Review D Vol.93 No.2

<P>We compute the form factors for the B --> Kl(+)l(-) semileptonic decay process in lattice QCD using gauge-field ensembles with 2 + 1 flavors of sea quark, generated by the MILC Collaboration. The ensembles span lattice spacings from 0.12 to 0.045 fm and have multiple sea-quark masses to help control the chiral extrapolation. The asqtad improved staggered action is used for the light valence and sea quarks, and the clover action with the Fermilab interpretation is used for the heavy b quark. We present results for the form factors f(+)(q(2)), f(0)(q2), and f(T)(q2), where q(2) is the momentum transfer, together with a comprehensive examination of systematic errors. Lattice QCD determines the form factors for a limited range of q(2), and we use the model-independent z expansion to cover the whole kinematically allowed range. We present our final form-factor results as coefficients of the z expansion and the correlations between them, where the errors on the coefficients include statistical and all systematic uncertainties. We use this complete description of the form factors to test QCD predictions of the form factors at high and low q(2).</P>

B→πllForm Factors for New Physics Searches from Lattice QCD

Bailey, Jon A.,Bazavov, A.,Bernard, C.,Bouchard, C. M.,DeTar, C.,Du, Daping,El-Khadra, A. X.,Freeland, E. D.,Gá,miz, E.,Gottlieb, Steven,Heller, U. M.,Kronfeld, A. S.,Laiho, J.,Levkova, L.,Liu, American Physical Society 2015 Physical Review Letters Vol.115 No.15