Nowadays, the issues such as the thin algorithm, attack sensitivity, narrow applications restrict the development of text watermark technology. This paper purposes to coordinate multi-watermarking algorithms to work collaboratively by polymorphism watermarking algorithm: on the one hand, this paper hopes to seek the positive direction of watermarking development by way of expanding the embedding space, on the other hand, this paper hopes to use polymorphism watermarking to enhance the robustness of the system. At first, we extract the relevant classification characteristics on the basis of summarizing the existing algorithms. Then we discuss the defining polymorphism watermarking algorithm, and focus on the cooperative relations of the watermark information. By algorithm design, implementation and verification, the polymorphism watermarking algorithm proves to be effective to solve the issues including both limitation of the watermark embedding space and the attack sensitivity of a single algorithm.

Robustness

Digital Watermarking Alliance

10.1109/incos.2013.33

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Citations (3)

Research on Active Matrix Electrophoretic Paper Controller

Advanced Display (2010)

Qingcheng Li

Electronic paper display has a closely relationship with the controller.During the localization process of electronic paper,it must have the appropriate controller to cooperate with.This article reseachs how to control the kind of electronic paper display from the perspective of active matrix and its basic structure,with fully analysis of gray scale display on the basis of the principle of electrophoretic display.At the end of the article,it validates the way of gray scale control,and gets a good display effect,which lay the foundation for domestic electronic paper display control in future.

Matrix (chemical analysis)

Gray (unit)

Source

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High-rate nitrogen removal from carbon limited wastewater using sulfur-based constructed wetland: Impact of sulfur sources

The Science of The Total Environment (2020)

Meng Li Rui Duan Hao Wen Qingcheng Li Muhammad Arslan

Constructed wetland

Aerobic denitrification

10.1016/j.scitotenv.2020.140969

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Citations (49)

Using easy-to-biodegrade co-substrate to eliminate microcystin toxic on electrochemically active bacteria and enhance bioelectricity generation from cyanobacteria biomass

The Science of The Total Environment (2020)

Fabrice Ndayisenga Zhisheng Yu Ge Yan Irfan Ali Phulpoto Qingcheng Li

Microcystin-LR

Microbial consortium

10.1016/j.scitotenv.2020.142292

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Citations (14)

USP7 promotes IgA class switching through stabilizing RUNX3 for germline transcription activation

Cell Reports (2024)

Bo Zhao Zhigang Xia Beibei Yang Yao Guo Ruizhi Zhou

Class switch recombination (CSR) diversifies the effector functions of antibodies and involves complex regulation of transcription and DNA damage repair. Here, we show that the deubiquitinase USP7 promotes CSR to immunoglobulin A (IgA) and suppresses unscheduled IgG switching in mature B cells independent of its role in DNA damage repair, but through modulating switch region germline transcription. USP7 depletion impairs Sα transcription, leading to abnormal activation of Sγ germline transcription and increased interaction with the CSR center via loop extrusion for unscheduled IgG switching. Rescue of Sα transcription by transforming growth factor β (TGF-β) in USP7-deleted cells suppresses Sγ germline transcription and prevents loop extrusion toward IgG CSR. Mechanistically, USP7 protects transcription factor RUNX3 from ubiquitination-mediated degradation to promote Sα germline transcription. Our study provides evidence for active transcription serving as an anchor to impede loop extrusion and reveals a functional interplay between USP7 and TGF-β signaling in promoting RUNX3 expression for efficient IgA CSR.

Transcription

10.1016/j.celrep.2024.114194

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The Qc5 Allele Increases Wheat Bread-Making Quality by Regulating SPA and SPR

International Journal of Molecular Sciences (2022)

Zhen‐Ru Guo Qing Chen Jing Zhu Yan Wang Yang Li

Common wheat (

10.3390/ijms23147581

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Citations (5)

High Speed Homework Data Collecting System under K-12 Education Circumstance

Qingcheng Li Heng Cao Haoqiang Yan Ye Lü

With the development of new technologies for data mining and analyzing, many industries are using big data technologies to conduct development of the industry. In education, online resources serve big data analyzing. However, in an offline situation, homework is a key factor that reflecting education qualities. Under K-12 education circumstance, students subimit their handwritten homework through paper. In this manner, the value of homework can be easily ignored due to lacking of methods and tools for recording. Inspired by using high speed scanner to input examination paper into computers, we design a high-speed photographic apparatus based homework record system. In this system we propose a scenario-driven homework submission scheme, which provides high speed homework collection service. For each homework we design a corresponding description file including page information and question information for further data analysis. By using the system, a student can record one piece of homework into a digital image within two seconds. The system meets the demands of daily use.

10.1109/isssr.2016.022

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Investment Decision-Making of Construction Projects Based on Modified Risk-Adjusted Discount Rate

Yihua Mao Yue Liu Qingcheng Li

A fundamental tool used to optimize investment decision-making of projects with different construction periods and risks is risk-adjusted discount rate. However, there are some shortcomings of this method, such as difficulty in adjust the discount rates and exaggeration of long-term risks. The objective of this paper is to modify it and to find a better way to assist investment decision-making of construction projects. Firstly, factors contributing to risks of construction projects will be listed and scored by experts, according to which the total degree of risks that will be determined by Analytic Hierarchy Process. Secondly, risk-adjusted discount rate(r)=risk-free rate of return(i) +unit risk premium(b)×total degree of risks(Q). In addition, the critical point of decision-making will be brought in and there is an real-life example to illustrate this decision-making process.

Investment

Rate of return

Exaggeration

Decision-making

10.1109/icise.2009.696

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A Chinese Text Watermarking Based on Statistic of Phrase Frequency

Qingcheng Li Jin Zhang Zhenhua Zhang Liu Jia-xin

Although tamper and delete attack problem is difficult to overcome, this paper proposes a novel algorithm based on the statistical characteristics of phrase frequency to solve it. The algorithm takes watermark as information entropy and Chinese characters' code as partial probability distribution values. As a result, the problem of sequence absence brought by delete attack is converted into sorting order changing problem. To approximate watermark information entropy, two approximation algorithms are presented, the performance of which were also analyzed. Moreover after being organized in cyclic codes, the rest probability distribution value is embedded in cover text. Not only does cyclic code with redundancy guarantee the overall data safety, but error correction reduces delete attack impact.

Phrase

Statistic

10.1109/iih-msp.2008.156

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Citations (1)