• Title/Summary/Keyword: Wei Qi

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A East Public-Key Cryptography Using RSA and T-invariants of Petri Nets

  • Ge, Qi-Wei;Takako Okamoto
    • Proceedings of the IEEK Conference
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    • 2000.07b
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    • pp.669-672
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    • 2000
  • This paper deals with cryptography by applying RSA and Petri nets. Firstly, we introduce RSA cryptography and a Petri net based private-key cryptography. Then we propose a new public-key cryptography, Petri Net based Public-Key Cryptography dented as PNPKC, by taking the advantages of these two proposed cryptographys and give an example to show how to apply PNPKC. Finally, we do the comparison between RSA cryptography and PNPKC on security as well as computation order. As the results, the security of PNPKC is as strong as RSA cryptography and further the encryption and decryption of PNPKC are in average 210 times as fast as RSA cryptography from our experimental data.

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Diaporthe taoicola and D. siamensis, Two New Records on Citrus sinensis in China

  • Cui, Meng Jiao;Wei, Xin;Xia, Peng Liang;Yi, Ji Ping;Yu, Zhi He;Deng, Jian Xin;Li, Qi Li
    • Mycobiology
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    • v.49 no.3
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    • pp.267-274
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    • 2021
  • Two Diaporthe species isolated from fruit of Citrus sinensis in China were characterized based on morphology and multilocus phylogeny of ITS, tef1, and tub2 gene sequences. The phylogeny indicated that the two species match Diaporthe taoicola and D. siamensis. A critical examination of phenotypic characteristics confirmed the phylogenetic results. Diaporthe taoicola was morphologically characterized by producing Alpha conidia with tapering toward both ends. Meanwhile, D. siamensis produced cylindrical or ellipsoidal Alpha conidia with two oil drops. Pathogenicity tests revealed that both species were pathogenic to fruit of C. sinensis. To our knowledge, the two species were firstly reported on Citrus sinensis in China.

Quickest Spectrum Sensing Approaches for Wideband Cognitive Radio Based On STFT and CS

  • Zhao, Qi;Qiu, Wei;Zhang, Boxue;Wang, Bingqian
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.13 no.3
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    • pp.1199-1212
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    • 2019
  • This paper proposes two wideband spectrum sensing approaches: (i) method A, the cumulative sum (CUSUM) algorithm with short-time Fourier transform, taking advantage of the time-frequency analysis for wideband spectrum. (ii)method B, the quickest spectrum sensing with short-time Fourier transform and compressed sensing, shortening the time of perception and improving the speed of spectrum access or exit. Moreover, method B can take advantage of the sparsity of wideband signals, sampling in the sub-Nyquist rate, and it is more suitable for wideband spectrum sensing. Simulation results show that method A significantly outperforms the single serial CUSUM detection for small SNRs, while method B is substantially better than the block detection based spectrum sensing in small probability of the false alarm.

The diathermy scratch pad: A cheap and efficient tool for chemical and explosion-related burns

  • Wong, Allen Wei-Jiat;Hong, Qi En;Hui, Cheryl Li Yu;Chong, Si Jack
    • Archives of Plastic Surgery
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    • v.46 no.1
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    • pp.88-91
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    • 2019
  • The burn center in our hospital is a national and regional (Southeast Asia) center. Of all admissions, 10% are related to blast explosions, and 8% due to chemical burns. In the acute burn management protocol of Singapore General Hospital, early surgical debridement is advocated for all acute partial-thickness burns. The aim of early surgical debridement is to remove all debris and unhealthy tissue, preventing wound infection and thereby expediting wound healing. In chemical burns, there can be stubborn eschars that are resistant to traditional debridement. We would like to present a novel technique using the diathermy scratch pad as a cheap and efficient tool for the dual purpose of surgical debridement and dermabrasion.

On Two Versions of Cohen's Theorem for Modules

  • Xiaolei Zhang;Wei Qi;Hwankoo Kim
    • Kyungpook Mathematical Journal
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    • v.63 no.1
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    • pp.29-36
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    • 2023
  • Parkash and Kour obtained a new version of Cohen's theorem for Noetherian modules, which states that a finitely generated R-module M is Noetherian if and only if for every prime ideal 𝔭 of R with Ann(M) ⊆ 𝔭, there exists a finitely generated submodule N𝔭 of M such that 𝔭M ⊆ N𝔭 ⊆ M(𝔭), where M(𝔭) = {x ∈ M | sx ∈ 𝔭M for some s ∈ R \ 𝔭}. In this paper, we generalize the Parkash and Kour version of Cohen's theorem for Noetherian modules to S-Noetherian modules and w-Noetherian modules.

Simulating the performance of the reinforced concrete beam using artificial intelligence

  • Yong Cao;Ruizhe Qiu;Wei Qi
    • Advances in concrete construction
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    • v.15 no.4
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    • pp.269-286
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    • 2023
  • In the present study, we aim to utilize the numerical solution frequency results of functionally graded beam under thermal and dynamic loadings to train and test an artificial neural network. In this regard, shear deformable functionally-graded beam structure is considered for obtaining the natural frequency in different conditions of boundary and material grading indices. In this regard, both analytical and numerical solutions based on Navier's approach and differential quadrature method are presented to obtain effects of different parameters on the natural frequency of the structure. Further, the numerical results are utilized to train an artificial neural network (ANN) using AdaGrad optimization algorithm. Finally, the results of the ANN and other solution procedure are presented and comprehensive parametric study is presented to observe effects of geometrical, material and boundary conditions of the free oscillation frequency of the functionally graded beam structure.

Tumor Inhibition Effects and Mechanisms of Angelica sinensis and Sophorae flavescentis ait Decoction Combined with Cisplatin in Xenograft Mice

  • Yan, De-Qi;Liu, Yong-Qi;Li, Ying-Dong;Li, Dou;Cheng, Xiao-Li;Wu, Zhi-Wei
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.11
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    • pp.4609-4615
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    • 2014
  • Background: To investigate tumor inhibition effects and mechanisms of Angelica sinensis and Sophorae flavescentis ait decoction (ASSF) combined with diamine-dichloroplatinum (DDP). Materials and Methods: Bodyweight, tumor inhibition rate and q value were calculated for single ASSF or ASSF combined with DDP on H22 carcinoma xenograft KM mice. Biochemical methods for serum LDH, AST, ALT, and AKP, ELISA method for serum HIF-$1{\alpha}$, pathological assessemnt of thymus, immunohistochemistry detection of tumor tissue caspase3 and mutant p53 protein, and qRT-PCR detection of bax/ bcl-2 mRNA were applied. Results: Compared with DDP control group, the bodyweight increased in ASSF-DDP group (p<0.01). Tumor inhibition rates for DDP, ASSF, ASSF-DDP were 62.7%. 43.7% and 71.0% respectively, with a q value of 0.90. Compared with other groups, thymus of DDP control group had obvious pathological injury (p<0.01), serum LDH, AST, ALT, AKP increased significantly in DDP control group (p<0.01), while serum HIF-$1{\alpha}$ was increased in the model control group. Compared with this latter, the expression of mutant p53 protein and bcl-2 mRNA were decreased in all treatment groups (p<0.01), but there were no statistical difference between DDP control p and ASSF-DDP groups. The expression of caspase3 protein and bax mRNA was increased in all treatment groups, with statistical differences between the DDP and ASSF-DDP groups (p<0.01). Conclusions: ASSF can inhibit bodyweight decrease caused by DDP, can inhibit tumor growth synergistically with DDP mainly through increasing serum HIF-$1{\alpha}$ and pro-apoptotic molecules such as caspase 3 and bax, rather than through decreasing anti-apoptotic mutant p53 and bcl-2. ASSF can reduce DDP toxicity due to decreasing the release of LDH, AST, ALT, AKP into blood and enhancing thymus protection.

Three Cases Report of Anxiety and Depression Disorder in the Traffic Accident Patients Treated with Prescription of Kami-shoyo-san (우울, 불안 증상을 동반한 교통사고 환자의 가미소요산(加味逍遙散) 치험 3례)

  • You, Ju-Yeon;Jang, Chul-Yong;Jeong, Hye-Ryon;Shin, Yong-Jeen;Kim, Seong-Joung;Lee, Un-Jung
    • The Journal of Internal Korean Medicine
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    • v.35 no.4
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    • pp.556-572
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    • 2014
  • Objectives: The purpose of this study was 1. To investigate correlation of subjective stress with patient's prognosis 2. To observe the effect of Kami-shoyo-san on anxiety and depressive disorder. Methods: We investigated 3 cases of in-patients from traffic accidents. Patients were treated with Kami-shoyo-san. The Beck Anxiety Inventory (BAI) and the Beck Depression Inventory (BDI) were used to assess anxiety and depression, respectively. We also used Qi stagnation test and Qi counterflow test according to Terasawa's criteria for diagnosis of anxiety and depression. Pain was evaluated by Numeric Rating Scale (NRS). Results: After treatment, the patient's symptoms improved considerably. Conclusions: 1. There were significant correlations between subjective stress and prognosis. 2. Kami-shoyo-san has good effect on anxiety and depressive disorder.

Liuwansu's 『Fire-Heat』 & 『Warm disease』 -on pathology(pathogenesis)of exterior-contact causes- (유완소(劉完素)의 화열론(火熱論)과 온병학(溫病學) - 외감(外感) 병기(病機)를 중심으로 -)

  • Jin, Jupio;Cha, Wung-Seok;Kim, Nam-Il
    • The Journal of Korean Medical History
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    • v.22 no.1
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    • pp.57-67
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    • 2009
  • The results of analyzing "Shanghanlun-Shanghan examples" of Song Dynasty Text and Liuwansu's writings in the pursuit of comprehending his views written in "Fire-Heat" & "Warm disease" -are as follow. 1.He introduced Exterior-Interior Shanghan and Latent in the Winter & recurrent in the Spring Shanghan concept in the Febrile disease pathology as the link and the bifurcation point. His perception on Febrile disease encompassed Shanghan and Febrile disease on the same plane but actually discriminated in the treatment and medication between the two actually. 2.He suggested Febrile disease pathology in the concept of Shanghan and Febrile disease, which is coherent in the formation of interior heat as the result of the invasion of the lung by warm pathogen described in Warm disease Wei, Qi, Ying and Xue Fen Syndrome differentiation. He expanded the concept of esoteric portal 玄府 of "Suwon Tiaojinglun", to that of the omni-present portal & way of Qi's all directions movement, which is in accordance of invasion of upper energizer 上焦 by warm or hot pathogen via mouth and nose as used in Warm disease three-energizer differentiation. 3.He recognized both exterior-interior febrile disease in the context of both exterior-interior contact cause disease. He prescribed pungent-cool exterior releasing medicinal similar to that of exterior-releasing treatment adopted in warm disease. As lily-talc powder百合散 introduced in "Golden chamber synopsis" dispells heat by promoting excretion of urine and defecation, it is regarded as the original formula of later ikwonsan yiyuansan 益元散.

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Study Of the Zhang Zi-He's XieXue method (장자화(張子和)의 생애(生涯) 및 자혈이론(刺血理論)에 관(關)한 연구(硏究))

  • Jin, Jun;Yoon, Chang-Ryel
    • Journal of Korean Medical classics
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    • v.18 no.2 s.29
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    • pp.205-212
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    • 2005
  • Zhang Zi-He is one of the Jin&Yuan's four masters, and he used Dong-Xia method well, as well as he is one a medical man who contributed to the development of the medicine. He valued the pathogen. He recognized that the pathogen is a great cause of an attack of a disease, so, first, we have to get rid of pathogen, and it makes the Vital essence and energy recovered. He said, we have to get rid of the pathogen thouroughly. He used 'Wei Ci'-using fei zhen and densely puntuating many times and bleeding much, so the pathogen can't remain. He said if we bleed, it is same as the sweating. And about ${\ulcorner}Nei Jing{\lrcorner}$'s meaning, he said that bleeding is same as sweating and after bleeding, diaphoresis is not required, but it is good to bleed after sweating. He said that we removeing the fire and we can circulate Qi and blood. He set count on the body's circulation of our body, and it is the great cause of a disease. So, He quoted the ${\ulcorner}Nei Jing{\lrcorner}$'s sayings, and emphasized the importane of the circulation of qi and blood. And this Zhang Zi-He's way is in relation with 'Liu He Jian's fire and heat theory.

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