Parsing the Security of Bluetooth

Zhen-Ping Lan,Xue-Heng Tao,Xin Zhao 한국멀티미디어학회 2006 한국멀티미디어학회 국제학술대회 Vol.2006 No.-

Bluetooth is very susceptible to attacks for using radio waves to transfer information. This paper is just concerned with the security of Bluetooth system. The safe tasks and system structure of Bluetooth technology are discussed first of all. On the basis of that, the mechanism of authentication and encryption is investigated mainly. In the end, it constructively puts forward some feasible solve measures aiming at these existing flaws and possible security holes.

情態功能: 言語活動的語用動因的類型與建構

방진평 ( Zhen Ping Fang ) 한국중국언어학회 2010 중국언어연구 Vol.0 No.31

Past, Present and Future of Jilin Ginseng Development

Wang, Zhen-Ping The Korean Society of Ginseng 1992 Journal of Ginseng Research Vol.16 No.1

語義結構的槪念化量度範疇與特征

방진평 ( Zhen Ping Fang ) 한국중국언어학회 2011 중국언어연구 Vol.0 No.36

The life today saw lots phenomenon of quantity expression created by people here and there, and we live in the world of semantics "the quota" in time. The language cognition measurement view, namely to speech act`s conformity measure,its core is compared to the difference from the different. This article is the semantic analysis of the view of quantitativeness of language. It mainly focuses category and features of concepts which in all is Conceptual Quantitativeness (Semantic Structure). In other words, it means that meanings of expression mainly come from the concept and changes of it. Here, "concept structure"is not the style, distribution of concept(different from "language structure"), but mean-the semantic structure is conceptual, motivational of thinking. "Conceptstructure" can be the category or unit of semantic analysis of language, it is to measure language righteousness of substantial: The language meaning is various notionstructure. Construct or purchase the mode including Numbervalued Quantitativeness, Quality-changed Quantitativeness, perspective-selected Quantitativeness, Structure-fixed Quantitativeness, etc.

語文學 : 中新兩國"漢語병音敎學方案"的發展及反思

유진평 ( Zhen Ping Liu ) 한국중국학회 2010 國際中國學硏究 Vol.13 No.-

中國小學語文敎材、中國對外漢語敎材和新加坡小學華文敎材中都設計了"漢語병音敎學方案", 但三種敎材中的"漢語병音敎學方案"現狀和發展曆程不盡相同。回避直接敎學大量병寫規則是中國小學漢語병音敎學過程中摸索出的基本經驗, 被新加坡所接受, 但中國對外漢語敎學中對此幷未完全接受。中國和新加坡小學漢語병音敎學中都曾試圖抛棄병讀法, 但最終都沒成功。讓漢語병音行使獨立的讀寫職能、安於現狀不進行"漢語병音敎學方案"的進一步探索以及堅稱《漢語병音方案》最佳而不允許改進等做法, 都是不구科學的。爲探求最佳"漢語병音敎學方案", "如何合理定位漢語병音應該發揮的作用"、"中新兩國選用什마樣的병讀法更能發揮敎學對象自身的優勢"等問題將是今後漢語병音敎學硏究的重點。

논문 : 語言思維; 人主體對物客體觀照方式的선變 (P0 + Q0) <…-> (P1 + Q1)

방진평 ( Zhen Ping Fang ) 중국어문학회 2012 中國語文學誌 Vol.41 No.-

本文論述人類主體對物質存在客體的觀照方式的선變更替與發展進化。 在感知自然、形成自我的基礎上, 原始人類步入思考階段, 産生思維活動。思 維活動凝結爲相對固定的關系模式, 卽思維方式。思維方式運用於人際交流, 産 生人類主體的語言思維以及觀照物質世界的習慣, 包括混同式觀照、替代式觀 照和表現式觀照, 타們體現語言思維與外部世界的聯系。 混同式觀照(P0 = P1), 包含以下細節: 互渗的原始思維方式、無理分類與語 詞互構、無因推理與行爲表達、不達辭意及思維因由; 替代式觀照(P0 -〉P1), 主要內容包含: 語言本文引導思維前行、神話思維的本質卽隱喩; 表現式觀照 (P1 -〉P0), 包含兩個要點: 人主體性的確立、敍事思維總特征。

The Lung Function Impairment in Non-Atopic Patients With Chronic Rhinosinusitis and Its Correlation Analysis

Linghao Zhang,Lu Zhang,Chun-Hong Zhang,Xiao-Bi Fang,Zhen-Xiao Huang,Qing -Yuan Shi,Li-Ping Wu,Peng Wu,Zhen-Zhen Wang,Zhi-Su Liao 대한이비인후과학회 2016 Clinical and Experimental Otorhinolaryngology Vol.9 No.4

Objectives. Chronic rhinosinusitis (CRS) is common disease in otorhinolaryngology and will lead to lower airway abnormality. However, the only lung function in CRS patients and associated factors have not been much studied. Methods. One hundred patients with CRS with nasal polyps (CRSwNP group), 40 patients with CRS without nasal polyps (CRSsNP group), and 100 patients without CRS were enrolled. The difference in lung function was compared. Meanwhile, CRSwNP and CRSsNP group were required to undergo a bronchial provocation or dilation test. Additionally, subjective and objective outcomes were measured by the visual analogue scale (VAS), 20-item Sino-Nasal Outcome Test (SNOT-20), Lund-Mackay score, Lund-Kennedy endoscopic score. The correlation and regression methods were used to analyze the relationship between their lung function and the above parameters. Results. The forced expiratory volume in 1 second (FEV1) and forced expiratory flow between 25% and 75% of forced vital capacity (FEF25-75) of CRSwNP group were significantly lower than other groups (P<0.05). On peak expiratory flow, there was no difference between three groups. In CRSwNP group, FEV1 was negatively correlated with peripheral blood eosinophil count (PBEC) and duration of disease (r=–0.348, P=0.013 and r=–0.344, P=0.014, respectively), FEF25-75 negatively with VAS, SNOT-20 (r=–0.490, P=0.028 and r=–0.478, P=0.033, respectively) in CRSsNP group. The incidence of positive bronchial provocation and dilation test was lower in CRSwNP group (10% and 0%, respectively), with both 0% in CRSsNP group. The multiple linear regression analysis indicated that change ratio of FEV1 before and after bronchial provocation or dilation test were correlated with PBEC in CRSwNP group (β=0.403, P=0.006). Conclusion. CRS leading to impaired maximum ventilation and small airway is associated with the existence of nasal polyp. Lung function impairments can be reflected by PBEC, duration, VAS, and SNOT-20. In CRSwNP patients, PBEC is independent predictor of FEV1 change ratio.

A Novel Form Analysis Method Considering Pretension Process for Suspen-dome Structures

Zhen Zhou,Yu-long Feng,Shao-ping Meng,Jing Wu 대한토목학회 2014 KSCE JOURNAL OF CIVIL ENGINEERING Vol.18 No.5

Suspen-dome is a kind of new prestressed space grid structure which is formed by combing a single-layer reticulated shell andtensegrity system. For the existence of lower flexible cable-strut system, form analysis is crucial for the mechanical performance ofsuspen-domes. This paper develops a novel form analysis method considering the influence of pretension process for suspen-domestructures. Some definitions of form analysis for suspen-dome structures are first expounded. Then an iterative method is presentedfor form analysis, and a sequential analysis method is proposed for pretension process simulation. By combining these two methods,a form analysis method considering pretension process is constructed for suspen-dome structures. Two examples are employed toverify the proposed method. Numerical example results show that both the error of nodal coordinates and cable forces can stablyconverge to set tolerances. According to a scheduled pretension scheme, form analysis results can accurately achieve the expectedinitial state. Engineering example results show that without considering the influence of pretension process, the form analysis wouldbe error and the final state after all cables tensioned deviates greatly from the expected initial state. However, this can be achievedaccurately through the proposed method in this paper.

Construction Process Analysis for a Single-Layer Folded Space Grid Structure in Considering Time-Dependent Effect

Zhen Zhou,Jing Wu,Shao-ping Meng,Qi Yu 한국강구조학회 2012 International Journal of Steel Structures Vol.12 No.2

A new long-span space grid structure system, “single-layer folded space grid” (SFSG), is applied in the Shenzhen Universiade Stadium. Compared with regular single-layer grid, the out-of plane stiffness and bearing capacity of the structure is improved with bending and uplifting of the structural units in SFSG, and the span capacity of the structure is then enhanced. Because of the large structural dimension, the construction process including assembling, closure and brace-unloading should be divided into many stages. As a result, there is very strong time-dependent effect for the structural stress state in construction. In this paper, based on matrix mechanics model of space grid structures, a time-dependent analysis method considering temperature variation during construction is presented based on matrix mechanics model to optimize the closure scheme. A combined brace element is presented to accurately simulate the mechanic character of temporary braces. In this way, the whole construction process of assembling, closure and brace-unloading are effectively and accurately analyzed for the SFSG structure of Shenzhen Universiade Stadium. The displacement state, stress distribution, and force changes in temporary braces are obtained to provide instruction for the design and control of construction process.

Adaptive Event Triggered Optimal Control for Constrained Continuous-time Nonlinear Systems

Ping Wang,Zhen Wang,Qian Ma 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.3

This paper considers the event-triggered optimal control (ETOC) strategy for constrained continuoustime nonlinear systems via adaptive dynamic programming (ADP). First, a novel event-triggering condition is proposed, which can guarantee the stability of the closed-loop system. Meanwhile, the existence of a lower bound for the execution time is proved, which can guarantee that the designed event-trigger scheme avoids Zeno behavior. Then, to solve the partial differential Hamilton-Jacobi-Bellman (HJB) equation,the critic Neural Network (NN) is designed to approximate the cost function. So that the ADP-based ETOC scheme is designed. Moreover, through Lyapunov stability analysis, the stability of the closed-loop system can be ensured. Also, the uniform ultimate boundedness of the states and the weight estimation error can also be guaranteed. Last, a numerical example is given to illustrate the effectiveness and advantages of the proposed control scheme.