Publications by authors named "Zhuhua Hu"

Visual Simultaneous Localization and Mapping (VSLAM) is a crucial technology for autonomous mobile vision robots. However, existing methods often suffer from low localization accuracy and poor robustness in scenarios with significant scale variations and low-texture environments, primarily due to insufficient feature extraction and reduced matching precision. To address these challenges, this paper proposes an improved multi-scale local feature matching algorithm based on LoFTR, named MSpGLoFTR.

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Recently, feature relation learning has attracted extensive attention in cross-spectral image patch matching. However, most feature relation learning methods can only extract shallow feature relations and are accompanied by the loss of useful discriminative features or the introduction of disturbing features. Although the latest multi-branch feature difference learning network can relatively sufficiently extract useful discriminative features, the multi-branch network structure it adopts has a large number of parameters.

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Major pests of corn insects include corn borer, armyworm, bollworm, aphid, and corn leaf mites. Timely and accurate detection of these pests is crucial for effective pests control and scientific decision making. However, existing methods for identification based on traditional machine learning and neural networks are limited by high model training costs and low recognition accuracy.

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Background: Blastocystis is ubiquitous presence in animals and humans worldwide and has a high level genetic diversity. The aim of this study was to conduct a summary of Blastocystis prevalence, subtypes (STs) in humans and animals in China and depict their distribution.

Methods: We searched for the articles related to epidemiology of Blastocystis in humans and animals throughout China which published from January 1, 1990, to July 31, 2019 in the following databases: PubMed, China National Knowledge Infrastructure (CNKI) and Wanfang database.

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Aquaculture is an important part of agricultural economy. In the past, major farming accidents often occurred due to subjective experience. There are many factors affecting the water quality of aquaculture.

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An accurate prediction of cage-cultured water quality is a hot topic in smart mariculture. Since the mariculturing environment is always open to its surroundings, the changes in water quality parameters are normally nonlinear, dynamic, changeable, and complex. However, traditional forecasting methods have lots of problems, such as low accuracy, poor generalization, and high time complexity.

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The sampling rate of wideband spectrum sensing for sparse signals can be reduced by sub-Nyquist sampling with a Modulated Wideband Converter (MWC). In collaborative spectrum sensing, the fusion center recovers the spectral support from observation and measurement matrices reported by a network of CRs, to improve the precision of spectrum sensing. However, the MWC has a very high hardware complexity due to its parallel structure; it sets a fixed threshold for a decision without considering the impact of noise intensity, and needs a priori information of signal sparsity order for signal support recovery.

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Objective: To develop a bionic animal skin and evaluate its detective effect of cercariae so as to provide a new technique for the monitoring of the schistosome susceptibility water body.

Methods: A bionic animal skin was made with pigskin and the experiments were carried out for evaluating its detective effects of cercariae in laboratory and simulate fields, and at the same time, the sentinel mouse method was used as the control.

Results: In the laboratory, the cercariae were found in 10-, 30-, 60-cercaria subgroups in the bionic animal skin group after 1 and 2 hours, but the cercariae were found only in the 60-cercaria subgroup in the sentinel mouse group.

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Objective: To understand the present situation of the chronic schistosomiasis patients' knowledge, attitude and practice on schistosomiasis control in Nanchang City.

Methods: The knowledge, attitude and values on schistosomiasis control of 523 chronic schistosomiasis patients in Nanchang County, Jinxian County and Xinjian District in the Poyang Lake District were investigated with questionnaires. And the accuracy rates of the knowledge, attitude and practice among the patient groups of different counties, genders, age groups, occupations and educational levels were analyzed.

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Objective: To investigate the endemic situation of human infection in Nanchang City in 2014 and analyze the influencing factors, so as to provide the evidence for control measures.

Methods: The high-risk population of infection in Nanchang City was collected as an experiment group, and a control group was settled with the ratio of 1∶1. The serum tests and epidemiology surveys were conducted simultaneously, and the influencing factors were analyzed.

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Objective: To evaluate the effect of schistosomiasis control in towns that had reached the criteria of infection controlled in Nanchang City.

Methods: The residents and livestock of 14 towns that had reached the criteria of infection controlled in Nanchang, Xinjian and Jinxian counties of Nanchang City were sampled to investigate the schistosomiasis endemic situation, Oncomelania hupensis snail status, and data of schistosomiasis control work.

Results: The positive rate of serum tests of the residents was 2.

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Article Synopsis
  • The study aimed to understand how the calcium cyanamide synthetic drug affects the morphology of Schistosoma japonicum eggs, with the goal of exploring the drug's mechanism against schistosome eggs.
  • Researchers mixed the drug with cattle feces containing the eggs and monitored changes over a week, comparing treated samples with blank controls.
  • Results showed that the treatment caused significant damage to the eggs, including color changes, atrophy of miracidia, and thickening of egg shells, with the effects worsening over time.
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Objective: To understand the endemic regulation of acute schistosomiasis in Nanchang City of Jiangxi Province from 2005 to 2012 so as to provide the reference for policy-making of schistosomiasis control.

Methods: The data of acute schistosomiasis were collected and analyzed with the descriptive epidemiology method in Nanchang City from 2005 to 2012.

Results: A total of 52 acute schistosomiasis cases were reported in Nanchang City from 2005 to 2012.

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Dechlorinated water (100 ml, 30 degrees C) was put into a plate (diameter 15 cm), and 1% niclosamide spreading oil 5 microl was added, then a ring of Schistosoma japonicum cercariae were picked up to the plate. The time of killing all the cercariae was observed at three time points (immediately, 24, 48 h), and the dechlorinated water was used as control. The results showed that schistosome cercariae were all killed in three minutes by 1% niclosamide spreading oil at the three time points.

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Objective: To explore the influencing factors of the significant decrease of snail densities in Poyang Lake region, Nanchang City, 2011.

Methods: According to the elevation of the environment, 5 grasslands where there were high snail densities and their elevations were from 14 to 17 m were selected as study areas. The data of snails in the past three years and the hydrological information in the past five years were collected and analyzed.

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