Zhiwen Hu

Zhejiang Gongshang University · School of Computer Science and Technology

Background: In the context of the COVID-19 infodemic, the global profusion of monikers and hashtags for COVID-19 have found their way into daily communication and contributed to a backlash against China and the Chinese people. Objective: This study examines public engagement in crisis communication about COVID-19 during the early epidemic stage an...

Background: China is at the forefront of global efforts to develop COVID-19 vaccines and has five fast-tracked candidates at the final-stage, large-scale human clinical trials testing phase. Vaccine-promoting policymaking for public engagement is a prerequisite for social mobilization. However, making an informed and judicious choice is a dilemma f...

In the context of the COVID-19 pandemic, global vaccine campaigns are a mass vaccination intervention conducted through routine service provision for individuals who have reached a specified age. However, obtaining a high uptake rate to reach herd immunity may be undermined by various social motivations. To scrutinize the practical and dynamic stra...

COVID-19 pandemic is fueling digital health transformation-accelerating innovations of digital health services, surveillance, and interventions, whereas hastening social contagion of deliberate infodemic. The USA and many other countries are experiencing a resurgent wave of the COVID-19 pandemic with vaccination rate slowdown, making policymaking f...

Understanding naming conventions for strengthening the integrity of naming human diseases remains nominal rather than substantial in the medical community. Since the current nosology-based criteria for human diseases cannot provide a one-size-fits-all corrective mechanism, numerous idiomatic but erroneous names frequently appear in scientific liter...

The coronavirus disease 2019 (COVID-19) pandemic significantly impacts people's sentiment and mental health, threatening their health and lives. We gathered 4.17 million geotagged social media posts from Weibo and scrutinized the nuances of the collective sentiments of netizens in four megacities in China during the first pandemic wave (from 1 Dece...

Steganography is an important technology for ensuring the security of cyberspace and the privacy of communications. In the last decade, emerging biotechnology has made it possible for DNA to be used as a promising steganographic carrier with high hidden capacity, high imperceptibility and high feasibility. However, severe statistical distortion mig...

COVID-19 pandemic over the past years has revealed shortfalls in achieving rapid and reliable on-site detection of SARS-CoV-2, while limitations persist when polymerase chain reaction based nucleic acid tests (NATs) are performed, such as the low accuracy, the difficulty in virus quantification, and long analysis time. Therefore, efforts are being...

BACKGROUND With the outbreak of the pandemic, the mental health status of many countries in the world has been significantly negatively affected. If the psychological impact of COVID-19 is not taken seriously, it may further lead to depression, bipolar disorder, schizophrenia, and other psychoses, affecting immune ability to the coronavirus. Object...

The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has lasted for almost 2 years. Stemming its spread has posed severe challenges for clinical virus detection. A long turnaround time, complicated operation, and low accuracy have become bottlenecks in developing detection techniques. Adopting a direct antigen detecti...

BACKGROUND Scientists placed less aligned emphasis on naming the emerging SARS-CoV-2 variants, and yet a holistic standard nomenclature scheme for viral variants remains to be fleshed out and full-fledged. In the context of the COVID-19 infodemic, the global profusion of stigmatizing geographical names for those variants have found their way into d...

Medical image fusion can effectively combine different images with different parts and complements each other, which is a hotspot in image processing. However, the medical image acquisition equipment usually obtains single image, so it is unable to use dataset to train convolutional neural network to extract stable image features. This paper propos...

BACKGROUND China is at the forefront of global efforts to develop COVID-19 vaccines and has five fast-tracked candidates in the final-stage, large scale human clinical trials tests. Layered on top of public engagement, making an informed and judicious choice is a catch-22 for the Chinese government in the context of COVID-19 vaccination promotion....

In recent years, linguistic steganography based on text auto-generation technology has been greatly developed, which is considered to be a very promising but also a very challenging research topic. Previous works mainly focus on optimizing the language model and conditional probability coding methods, aiming at generating steganographic sentences w...

BACKGROUND In the context of the COVID-19 infodemic, the global profusion of monikers and hashtags for COVID-19 have found their way into daily communication and contributed to a backlash against China and the Chinese people. OBJECTIVE This study examines public engagement in crisis communication about COVID-19 during the early epidemic stage and...

Most of the existing text generative steganographic methods are based on coding the conditional probability distribution of each word during the generation process, and then selecting specific words according to the secret information, so as to achieve information hiding. Such methods have their limitations which may bring potential security risks....

Materials and Methods (Zhiwen Hu, Jian Zhang, Yongfeng Huang, Xun Wang. Origins of Terminology Pending Further Discovery, Science, 2019, http://science.sciencemag.org/content/291/5501/39.2/tab-e-letters.)

Background: In the context of the COVID-19 infodemic, the global profusion of monikers and hashtags for COVID-19 have found their way into daily communication and contributed to a backlash against China and the Chinese people. Objective: This study examines public engagement in crisis communication about COVID-19 during the early epidemic stage and...

The earliest usage track-down of a target terminology of the humanities, social sciences, and natural science could provide an insightful and compelling argument for rigorous historical story, and finally help us penetrate to the essence of reality.

Less aligned emphasis has been given to the COVID-19 infodemic coordinating with the COVID-19 outbreak. Global profusion of tangled monikers and hashtags has found their ways in daily communication and contributed to backlash against Chinese. Official naming efforts against infodemic should be meet with a fair share of identification. Based on brie...

Less aligned emphasis has been given to naming the 2019 novel coronavirus and pathogenic disease. Global profusion of squab names has found their ways in daily communication, and our survey promises to articulate that many of them may have contributed to backlash against Chinese people. Here, based on brief critical reviews on the naming of coronav...

Background: In the context of the COVID-19 infodemic, the global profusion of monikers and hashtags for COVID-19 have found their way into daily communication and contributed to a backlash against China and the Chinese people. Objective: This study examines public engagement in crisis communication about COVID-19 during the early epidemic stage and...

Materials and Methods (Zhiwen Hu, Jian Zhang, Yongfeng Huang, Xun Wang. Origins of Terminology Pending Further Discovery, Science, 2019, http://science.sciencemag.org/content/291/5501/39.2/tab-e-letters.)

Less aligned emphasis has been given to the COVID-19 infodemic coordinating with the COVID-19 outbreak. Global profusion of tangled monikers and hashtags has found their ways in daily communication and contributed to backlash against Chinese. Official naming efforts against infodemic should be meet with a fair share of identification. Based on brie...

With increasing industrialization of food production, residues of organophosphorus pesticides (OPs) are more frequently found in the environment including rivers, lakes and soils. Extended exposure to OPs, even at a level below 1 nM, may lead to liver and central nervous system damages in humans and animals, while existing detection methods are not...

With the advent of personal computers, mathematicians and PC team up with each other in the scientific sphere, wherein one sheds light on the significance of the other. However, hitherto PC rarely appears in publications to meet with a fair share of identification, and even its unique contribution has only been flirted with. For this underrepresent...

Citation: Zhiwen Hu, Jian Zhang, Yongfeng Huang, Liang Chen, Chuhan Wu, Zhongliang Yang. Named nonhumans crossing the line, Science, 2019, https://science.sciencemag.org/content/365/6452/426/tab-e-letters.

JoAnne Stubbe is an American chemist best known for her work on ribonucleotide reductases, for which she was awarded the National Medal of Science in 2009. In 2017, she retired as the Professor of Chemistry & Biology at the Massachusetts Institute of Technology. The emeritus biochemist JoAnne Stubbe had enrolled her pet dog named Dr. McEnzyme Stub...

This year marks the 150 th celebration of Nature. However, the understanding of the way the army of unsung editors-in-chief has strengthened and enriched the integrity and quality of the journal under the umbrella of its original mission remains nominal rather than substantial. This paper scrutinizes the chief vehicle guided by Nature's doctrine wi...

This year marks the 150th celebration of Nature. However, the understanding of the way the army of unsung editors-in-chief has strengthened and enriched the integrity and quality of the journal under the umbrella of its original mission remains nominal rather than substantial. This paper scrutinizes the chief vehicle guided by Nature's doctrine wit...

The origins of terminology of the humanities, social sciences, and natural science are still pending further discoveries. The earliest usage track-down of a target term could provide an insightful and compelling argument for rigorous historical story, and finally help us penetrate to the essence of reality. However, many empirical extrapolated theo...

Chinese President Xi Jinping conceives Xiongan New Area as a millennium engine of China’s ecological civilization, following Shenzhen and Pudong mapped out by Deng Xiaoping. The brain child is reliably correlated with sociotechnical standards of Internet of City Things (IoCT) and Chinese philosophy. (Citation: Zhiwen Hu, Yiping Cui, Yong Wei. Chin...

Yan Li, Zhiwen Hu. Scientometrical analysis of the Chinese Prosimetric Oral Narrative: Guci. Chinese Music, No. 2, pp. 186-192, 2018. DOI: 10.13812/j.cnki.cn11-1379/j.2018.02.024 (in Chinese) (李燕, 胡智文. 中国民间说唱艺术鼓词知识图谱研究. 《中国音乐》, No. 2, pp. 186-192, 2018.)

Historical and cultural towns and villages (HCTVs) in China homes to a large variety of fascinating tangible heritage, intangible heritage and natural landscapes. These legacies characterised from ancient history, architecture, society, humanity, aesthetics, philosophy and folk custom, are significantly undervalued. The conservation and protection...

With the full swing of computer technology, evacuation models are constructed and simulated via computers to study the various phenomena and behaviors during the evacuation process. They open unique potential opportunity to evaluate the architectural design and provide the decision support for the emergency evacuation plans. This paper details a ca...

The problem of optimal power constrained distributed detection over a noisy multiaccess channel (MAC) is addressed. Under local power constraints, we define the transformation function for sensor to realize the mapping from local decision to transmitted waveform. The deflection coefficient maximization (DCM) is used to optimize the performance of p...

Linear network coding can achieve the network capacity in the single source multicast case. For the single source multicast network with wiretap adversary, Cai and Yeung (2002) suggest an information-secure linear coding which tightly achieves the transmitting rate upper bound C – t, where C is the capacity of the network and t is the maximum numbe...

Today, many television viewers are also experienced internet users. People often post reviews of television programs on social networks and have created influential and powerful opinions. To strengthen the monitoring and analysis of these opinions, this paper developed a cloud computing-based internet public opinion monitoring and analysis system f...

Portable Network Graphics (PNG) is a bitmapped image format that employs lossless data compression. PNG is created to improve upon and replace GIF (Graphics Interchange Format) as an image-file format not requiring a patent license. The PNG file is widely used in embedded systems. In this paper, the PNG file structure and decoding process is introd...

With the improvement and maturity of 3G network, the wireless communication rate for the users has become more and more high. Every research institution will focus gradually shift to long term evolution Version (LTE) of 3G network. In this paper, 3GPP LTE security mechanisms are introduced in detailed; the security architecture of LTE/SAE is presen...

With the popularity of mobile devices and wireless technologies, mobile social network systems are increasingly available. In this paper we propose a new algorithm called Community Detection algorithm for mining interesting communities or groups in a Campus Mobile Social Network (CMSN). The proposal algorithm is composed of two main components, an...

We in the paper discuss a problem on query optimization for multimedia data management systems, i.e., how to optimize queries with expensive multimedia restrictions. Because of the low expenses, selections have typically been handled in traditional query optimization schemes by the "pushdown" strategy so as to reduce subsequent join costs. In a mul...

The rapid increase of multimedia data makes multimedia query more and more important. To better satisfy users' query requirements, developing a functional multimedia query language is becoming a promising and interesting task. In this paper, we propose a graphical multimedia query language called GMQL, which is developed based on a semi-structured...

At present, it is urgent for us to build fully functional information security laboratory. In this paper, the function and requirements of a new information security lab are analyzed. And a construction scheme for information security laboratory is put forward. The lab not only provides services for teaching and training , but also provides securit...

As a prevalent type of Web advertising, contextual advertising refers to the placement of the most relevant ads into a Web page, so as to increase the number of ad-clicks. However, some problems of homonymy and polysemy, low intersection of keywords etc., can lead to the selection of irrelevant ads for a page. In this paper, we present a new contex...

Based on the particularities of illumination optical systems, the design of light-emitting diode (LED) primary optical system is performed by using optical modeling and Monte Carlo non-sequence ray tracking method. The intensity distributions of LEDs with different material and packaging parameters are obtained to get optimum values of reflector cu...

Scientific CCD cameras with high sensitivity have been widely used for low-light-level quantitative fluorescence microscopy (QFM) in cell biology. These state-of-the-art scientific CCDs offer several advantages over others, but what's new is not always the best choice for every application, and their specifications don't always tell the whole story...

Single-Particle Microbeam (SPM) is uniquely capable of precisely delivering a predefined number of charged particles (precise doses of radiation) to individual cells or sub-cellular targets in situ. Here, we scrutinize and formulate the application of calibration and cell registration, image stitching, standard irradiation protocols, and give a cri...

Recently, research on Web services composition has attracted a lot of attentions from both academic and industry. Related research projects and prototype platforms are also been developed. We have implemented the semi-automatic services composition with workflow technology which combines Business Process Execution Language for Web Services with pro...

Cellular micro-irradiation is now recognized as a powerful technique to unveil the mechanisms of interaction between ionizing radiation and living cells or tissues. The single-ion microbeam (SIM) is uniquely capable of delivering precisely the predefined number of charged particles (precise doses of radiation) to specific individual cells or sub-ce...

Regarding software-hardware as the whole system, Markov reliability model of programmable logic control system was established by Markov theory and mathematical statistics principle based on repairable characteristics of Programmable Logic Control (PLC) system. Important indexes such as availability, reliability and meantime-to-failure were derived...

This work investigates the stopping power of V79 cells for low energy ions. An energy equation for the incident ion, E, has been constructed in order to establish the stopping powers of mammalian cell for low energy ion implantation. Based on the biological structure of the mammalian cell, a physical structural model is proposed in which the attach...

Single-Ion Microbeam (SIM) is uniquely capable of precisely delivering a predefined number of charged particles (precise doses of radiation) to individual cells or sub-cellular targets in situ. Since the early 1990's, there has been an ever-increasing interest in developing and applying the SIM technique to problems in radiobiology for studies of c...

In this paper, two automatically calculated thresholds based on a statistical analysis of the histogram were used to apply binary segmentation to the bitmap. When the CCD and the microscope have been properly configured and the raw image is preprocessed, the Otsu's method can meet the need of the control program on the whole.

The proposed multi-dimensional quantitative fluorescence microscopy for the CAS-LIBB single-particle microbeam II endstation is a CCD-based imaging system. We systematically analyse the theoretical and the practical considerations pertinent to choosing the right CCD camera and unveiling the principles underlying multifarious parameters. Therefore,...

Single-particle microbeam as a powerful tool can open a research field to find answers to many enigmas in radiobiology. A single-particle microbeam facility has been constructed at the Key Laboratory of Ion Beam Bioengineering (LIBB), Chinese Academy of Sciences (CAS), China. However there has been less research activities in this field concerning...

It has been demonstrated that characters can be written by proton beams in various materials. In contributing to the rapid development of proton beam writing technology, we introduce a new method for binary code storage and data encryption by writing binary codes of characters (BCC) in substrates with single proton beam writing technology. In this...

Single-particle microbeam is uniquely capable of precisely delivering a preset number of charged particles to individual cells or sub-cellular targets to be determined in vitro. It is crucial to find a reference point that relates the microbeam's location to the microscope's plane and align individual targets at this reference point for cell irradi...

Single-particle microbeam is uniquely capable of delivering precisely a predefined number of charged particles to determined individual cells or sub-cellular targets in vitro. It is crucial to providing high-speed precision for living cell irradiation. This paper demonstrates high-localized single cell irradiation by using high-speed micropositioni...

High resolution scattergrams of China map profile are etched on the CR-39 film within a small area of hundreds of microns × hundreds of microns by the AS-LIBB single proton microbeam, according to the coordinates of the standard images, which are acquired by the home-developed image-processing program. The testing results show that the single parti...

A single-particle microbeam facility has been constructed at the Key Laboratory of Ion Beam Bioengineering (LIBB), Chinese Academy of Sciences (CAS). The system was designed to deliver a defined number of hydrogen ions produced by a Van de Graaff accelerator, in an energy range of 2.0–3.0MeV, into an area smaller than the nuclei of individual livin...

Ratiometric fluorescent calcium indicator dyes have been widely used for the study of the role of Ca2+ in cell physiopathology. Although these ratiometric dyes offer several advantages over others, they suffer some drawbacks which cause serious errors in measurement of intracellular Ca2+ concentration, [Ca2+]i. The present study systematically anal...

A single-particle microbeam facility has been constructed at the Laboratory of Ion Beam Bioengineering (LIBB), Chinese Academy of Sciences. The system is designed to deliver the defined number of hydrogen ions, covering a range of energy from 1.0 to 3.5 MeV, into an area smaller than the nuclei of individual living cells. Accuracy of the particle d...