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OALib Journal期刊

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Electromagnetic Spider Web Placement in the Southeast Coastal Seismic Belt in China  [PDF]
Min Jiang
Open Access Library Journal (OALib Journal) , 2017, DOI: 10.4236/oalib.1103351
Abstract:
The electromagnetic spider webs will be placed in the southeast coastal seismic belt. Instrument every year to replace the battery life can reach 20 years. After the instrument is placed, each group can absorb the anomaly of the earth’s electromagnetic field about 30 square kilometers. In each device, an electronic compass with a set of magnetic anomalies is detected. Using a special timer, opening 4 times per minute, the opening time is about 5-15 seconds. We found it is abnormal after repeated scanning electric signal through the GPRS network to judge, in a few days before the earthquake can know the earthquake abnormal electromagnetic field signal strength. The focus is on the use of ten kinds of ancient China tactics, further analysis of the quake epicenter. The equipment has low cost and low power consumption, so it is a good short impending earthquake prediction method [1] [2] [3].
Electromagnetic Spider Web Placement in the Longmen Mountain Fault Zone  [PDF]
Min Jiang
Open Access Library Journal (OALib Journal) , 2017, DOI: 10.4236/oalib.1103463
Abstract:
The design of the electromagnetic spider web deployed in the Longmen Mountain fault zone, Sichuan province, is described. Instrument every year to replace the battery life can reach 20 years. In seismically active areas, the principle for deployment is placing multiple groups of wireless transmitting modules. These spider webs of multiple modules are capable of detecting about 30 square kilometers within the scope of magnetotelluric field changes. Each module is usually equipped with an electronic compass for detection of the magnetic anomaly; using a special timer it opens four times per minute for about 5 to 15 s. If the signal is found to be abnormal, it can repeatedly scan many signals per hour. The signal is assessed by the GPRS network, which detects the seismic anomaly in the signal a few days before the earthquake as an early warning. Here, we focus on using ten tactics of ancient China as models for spatially deploying the electromagnetic spider web for further analysis of the quake epicenter. The equipment has low cost and low power consumption, so it is a good method for earthquake prediction.
Three-Point Electromagnetic Spider Web  [PDF]
Min Jiang
Open Access Library Journal (OALib Journal) , 2017, DOI: 10.4236/oalib.1103582
Abstract:
Simple three-point electromagnetic spider web combined with the host and the 30 m, 300 m, 3000 m 3 transmitters and 3 receiver circuits, telluric electricity and magnetic switch. Here the space electric field change by using the designed solenoid spider does not need deep inside the earth, and a seismometer and earthquake prediction control system is simple. After years of testing, with the use of every minute it is four times 5-10 second detection magnetic anomaly, and abnormal situation will be asked after the three behind the road before the earthquake electromagnetic parameters are converted to a digital signal electric parameter. If finding electromagnetic anomaly in 30 square kilometers will start the GSM switch remote alarm, using Maxwell’s equations theory and practice the test showed that this method can not only be used for electromagnetic anomaly before the earthquake prediction, and a plurality of electromagnetic webs can determine epicenter group composition. Before the earthquake changes in the electromagnetic field in a few hours to a few days, we are able to know in time that an earthquake is about to occur, and determine the location of the epicenter. The devices may be detected over stealth aircraft [1] [2] [3].
Urban Electromagnetic Spider Web  [PDF]
Min Jiang
Open Access Library Journal (OALib Journal) , 2017, DOI: 10.4236/oalib.1104007
Abstract:
Here design of electromagnetic spider webs imitating the actual spider web and trigram cropland structure, using the principle of bionics will combine Telluric Current, electricity, Atmospheric electronic, E-compass, 4G-GSM wave Switch, low and high frequency wireless transmitting and receiving devices. WIFI devices Switch. In theory, the electromagnetic spider webs induction method in Maxwell equation is adopted, and simple instruments and equipment are made by combining some software, such as wavelet transform, Mat-Lab simulation and configuration software. At ordinary times, all kinds of abnormal electromagnetic signals are detected at any time before the earthquake. In war, device can be used to detect all kinds of flying objects, such as stealth aircraft and cruise missiles, through the spider webs. Low equipment costs, reliable operation, we have forty years of wisdom crystallization [1].
Using Three Op Amp Simple AM/FM Radio Circuit  [PDF]
Min Jiang
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104334
Abstract:
After nearly a year of probation, the type of AM radio repeater circuit in general can be retrieved in a number of local radio stations; the installation is convenient, the output has a loud voice, and bass is rich, which make it indeed a good choice for beginners’ homemade radio circuit. Beginners can give radio principle about double harvest theory and practice. The whole circuit fabrication costs low. The AM circuit is successful, plus USB, TF playing blocks, FM module circuit without external antenna, and the antenna is surrounded by a large box inside a circle around the wire. The two buttons use to control move, and changing frequencies is very convenient. We usually put the electromagnetic spider web test on the radio and put it all over the country.
Generalized Likelihood Ratio Tests for Varying-Coefficient Models with Censored Data  [PDF]
Rong Jiang, Wei-Min Qian
Open Journal of Statistics (OJS) , 2011, DOI: 10.4236/ojs.2011.11003
Abstract: In this paper, we extend the generalized likelihood ratio test to the varying-coefficient models with censored data. We investigate the asymptotic behavior of the proposed test and demonstrate that its limiting null distribution follows a distribution, with the scale constant and the number of degree of freedom being independent of nuisance parameters or functions, which is called the wilks phenomenon. Both simulated and real data examples are given to illustrate the performance of the testing approach.
An Objective Penalty Functions Algorithm for Multiobjective Optimization Problem  [PDF]
Zhiqing Meng, Rui Shen, Min Jiang
American Journal of Operations Research (AJOR) , 2011, DOI: 10.4236/ajor.2011.14026
Abstract: By using the penalty function method with objective parameters, the paper presents an interactive algorithm to solve the inequality constrained multi-objective programming (MP). The MP is transformed into a single objective optimal problem (SOOP) with inequality constrains; and it is proved that, under some conditions, an optimal solution to SOOP is a Pareto efficient solution to MP. Then, an interactive algorithm of MP is designed accordingly. Numerical examples show that the algorithm can find a satisfactory solution to MP with objective weight value adjusted by decision maker.
A Penalty Function Algorithm with Objective Parameters and Constraint Penalty Parameter for Multi-Objective Programming  [PDF]
Zhiqing Meng, Rui Shen, Min Jiang
American Journal of Operations Research (AJOR) , 2014, DOI: 10.4236/ajor.2014.46032
Abstract: In this paper, we present an algorithm to solve the inequality constrained multi-objective programming (MP) by using a penalty function with objective parameters and constraint penalty parameter. First, the penalty function with objective parameters and constraint penalty parameter for MP and the corresponding unconstraint penalty optimization problem (UPOP) is defined. Under some conditions, a Pareto efficient solution (or a weakly-efficient solution) to UPOP is proved to be a Pareto efficient solution (or a weakly-efficient solution) to MP. The penalty function is proved to be exact under a stable condition. Then, we design an algorithm to solve MP and prove its convergence. Finally, numerical examples show that the algorithm may help decision makers to find a satisfactory solution to MP.
The Recognition of CAPTCHA  [PDF]
Min Wang, Tianhui Zhang, Wenrong Jiang, Hao Song
Journal of Computer and Communications (JCC) , 2014, DOI: 10.4236/jcc.2014.22003
Abstract:

CAPTCHA is a completely automated program designed to distinguish whether the user is a computer or human. As the problems of Internet security are worsening, it is of great significance to do research on CAPTCHA. This article starts from the recognition of CAPTCHAs, then analyses the weaknesses in its design and gives corresponding recognition proposals according to various weaknesses, finally offers suggestions related to the improvement of CAPTCHAs. Firstly, this article briefly introduces the basic steps during the decoding process and their principles. And during each step we choose methods which are better adapted to the features of different CAPTCHA images. Methods chosen are as followings: bimodal method in binarization, improved corrosion algorithm in denoising, projection segmentation method in denoised image processing and SVM in recognition. Then, we demonstrate detailed process through the samples taken from the online registration system of ICBC, show the recognition effect and correct the results according to the statistical data in the process. This article decodes CAPTCHAS from three other large banks in the same way but just provides the recognition results. Finally, this article offers targeted suggestions to the four banks based on the recognition effect and analysis process stated above.

Positive Solutions for Second-Order Nonlinear Ordinary Differential Systems with Two Parameters
Lan Sun,Yukun An,Min Jiang
ISRN Applied Mathematics , 2011, DOI: 10.5402/2011/612591
Abstract:
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