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Current Status of Soil-transmitted Nematode Infection in China

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Biomedical and Environmental Sciences 2008年第2期21卷 173-179页

作者： YING-DAN chen lin-hua TANG LONG-QI XU National Institute of Parasitic Diseases Chinese Center for Diseases Control and Prevention Shanghai 200025 China

Objective To carry out national surveys for ascertaining the current status and trends of soil-transmitted nematode infections in China, providing scientific basis for further developing control strategies. Methods In 1988-1992 （hereinafter abbreriated as ＂survey in 1990＂）, a stratified cluster random sampling method was used in the survey. In 2001-2004 （hereinafter abbreriated as ＂survey in 2003＂）, in order to compare with the survey in 1990, two-characteristic stratified cluster random sampling method was used and 687 investigation spots were sampled from the 2848 spots selected in the survey in 1990. Kato-Katz thick smear method was used to examine the eggs of soil-transmitted nematodes in fecal samples. Results The prevalence rates were 53.6% and 19.6% for soil-transmitted nematodes, 14.6% and 6.120% for hookworms, 44.6% and 12.7% for Ascaris lumbricoides, 17.4% and 4.630% for Trichuris trichiura in survey 1990 and survey 2003, respectively. The prevalence rates of soil-transmitted nematodes were higher in 13 provinces than the average level in China in the survey in 1990, and higher in 8 provinces than the average level in the survey in 2003. The prevalence of hookworms, Ascaris lumbricoides, Trichuris trichiura and the overall prevalence of soil-transmitted nematodes were higher in females than in males. It is estimated from the results of survey in 2003 that the number of persons with soil-transmitted nematode infections in the country is about 129 million, less than that in the survey in 1990. Conclusion The prevalence of soil-transmitted nematodes has declined considerably but is still relatively high in some provinces and autonomous regions. Control activities and socioeconomic development may have contributed to the decreased prevalence.

关键词： Soil-transmitted nematodes Survey Prevalence

Study on source rock potential and source rocks spatial distribution in the Manghan Faulted Sag, Kailu Basin

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第11期8卷 1872-1878页

作者： YIN Zhi-jun ZHANG Feng ZOU hua-yao WANG Wei-xing ZHOU Lian-min chen hua-lin Faculty of Resource and Information Technology China University of Petroleum Beijing 102249 China School of Energy Resources China University of Geosciences Beijing 100083 China Institute of Exploration and Exploitation Dagang Oilfield Tianjin 300280 China No.1 Production Plant Qinghai OilfieM Branch Company Dunhuang 736202 China Research Institute of Geological Exploration and Development Sichuan Petroleum Company CNPC Chengdu 610051 China

Manghan Faulted Sag is an exploratory target area in Kailu Basin. In order to determine its exploration prospect, the effectiveness of its source rocks is evaluated by organic geochemical behavior analysis of the samples, and their distributions are predicted using trace integration seismic inversion technology. Studies on their organic matter abundance, type and maturity indicate that the source rocks in the Sag have great generating potentials. Furthermore, it is found that, based on the spatial distribution predication, the source rocks in the Sag are well developed. Therefore, the Sag has a promising prospect for exploration.

关键词： Source rocks Hydrocarbon accumulation Organic matter Manghan Faulted Sag

Generating Entangled States o~ Multilevel Atoms through a Selective Atom-Field Interaction

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Chinese Physics Letters 2011年第1期28卷 24-25页

作者： chen Zhi-hua lin Xiu-Min School of Physics and Opto-electronics Technology Fujian Normal University ~uzhou 350007

We present a scheme to generate entangled state of two multilevel atoms in a high-Q, optical cavity. In the protocol, the selective atom-field interaction is highly controlled, which can yield a resonant interaction inside one selected atom-field subspace and leave the others in a highly dispersive regime. The atomic spontaneous emission is efficiently suppressed via the large atom-field detuning. Simultaneously, the proposal only requires commonly addressing on atoms inside the cavity, which reduces the difficulties of experiment.

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Co3O4/reduced Graphene Oxide Composite as An Enhanced Material for Electrochemical Detection of Paracetamol in Human Serum

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Chinese Journal of Structural Chemistry 2020年第6期39卷 1035-1043页

作者： chen hua-lin huaNG Qi-Tong HU Shi-Rong TANG Shu-Li YANG Hao LI Zhan-Ming College of Chemistry Chemical Engineering and EnvironmentMinnan Normal UniversityZhangzhou 363000China College of Pharmacy Gannati Medical UniversityGanzhou 341000China Department of Food Science China Jiliang UniversityHangzhou 310018China Food Science and Technology Programme Department of ChemistryNational University of SingaporeSingapore 117543Singapore

In this paper,we present a novel,reliable and sensitive electrochemical sensor for the determination of paracetamol based on hollow carbon Co3O4 nanosheets/reduced graphene oxide composite(Co3O4/r-GO).The Co3O4/r-GO was prepared via a rapid one-step microwave solvothermal *** series of techniques that included scanning electron microscopy,X-ray diffraction and Raman were carried out to characterize the morphology and structure of as-prepared *** importantly,the developed electrochemical sensor exhibited a wide linear range of 0.05 to 900.0μM and a low detection limit of 14.0 nM(S/N=3)by using differential pulse ***,the selectivity,repeatability,stability and practical applicability were further studied with satisfactory results.

关键词： Co3O4 nanosheets reduced graphene oxide paracetamol electrochemical sensor

Rapid and scalable preparation of highly quaternized polymer networks to achieve efficient simultaneous adsorption of iodide and pertechnetate

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Science China Chemistry 2025年第1期68卷 337-349页

作者： Meiyun Xu Song Gu Fulong chen Zhe Zhao Peng Liu Daoben hua State Key Laboratory of Radiation Medicine and Protection School of Radiological and Interdisciplinary Sciences (RAD-X) Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions Soochow University

The efficient separation of fission products,such as TcO4-and I-,holds strategic significance for the management of radioactive wastes and environmental *** this study,we propose an ultrafast strategy for scalable preparation of a highly quaternized organic network to facilitate efficient and synchronous separation of iodide and *** network can be prepared within a few minutes at room temperature,using polyethylenimine and 1,2,4,5-tetrakis（bromomethyl）benzene as building *** chlorine replacement,the network,abundantly decorated with quaternary ammonium groups （Cl@QPN）,exhibits an ultrahigh positive charge density of 7.6 mmol/*** enables the rapid and efficient enrichment of target anions through strong electrostatic Coulomb *** a result,Cl@QPN exhibits significantly higher adsorption rate constants of 0.830 g/（mg min） for ReO4-（a nonradioactive surrogate of TcO4-） and 0.677 g/（mg min） for I-compared to other ***,it possesses high adsorption capacities,reaching 1,681 mg/g for ReO4-and 917.4 mg/g for I-.Cl@QPN also demonstrates good selectivity towards target ions and shows efficient adsorption for99TcO4-.Additionally,Cl@QPN exhibits high dynamic processing capacities,handling up to 3,100 and 7,400 kg of simulated streams per kilogram of material for I-and ReO4-,respectively.

关键词： quaternized polymer networks adsorption pertechnetate iodide liquid radioactive streams

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蒸发结晶/生化工艺处理脱硝催化剂生产废水

中国给水排水 2014年第22期30卷 123-125页

作者：陈林华浙江东发环保工程有限公司浙江杭州310029

介绍了蒸发结晶/A2O组合工艺处理脱硝催化剂生产废水的工艺流程及技术特点,给出了主要构筑物、设备的技术参数和实际工程运行效果。结果表明,出水水质优于《污水综合排放标准》(GB 8978—1996)一级标准。

关键词：脱硝催化剂废水高氨氮废水蒸发结晶生化处理

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石灰改良泥质粉砂岩路基填料的试验研究

铁道工程学报 2008年第3期25卷 10-14页

作者：陈花林湖南交通工程职业技术学院湖南衡阳421001

研究目的:本文结合武广客运专线的路基填料改良工程,对泥质粉砂岩化学改良进行试验,以研究其作为客运专线铁路路基填料的可行性。研究结论:泥质粉砂岩化学改良后的物理力学性质有明显改善,特别是力学强度及水理性得到较大提高,能满足铁... 详细信息

研究目的:本文结合武广客运专线的路基填料改良工程,对泥质粉砂岩化学改良进行试验,以研究其作为客运专线铁路路基填料的可行性。研究结论:泥质粉砂岩化学改良后的物理力学性质有明显改善,特别是力学强度及水理性得到较大提高,能满足铁路路基填料的要求。因此,用生石灰作为全风化和强风化泥质粉砂岩的改良剂是可行的。

关键词：路基填料泥质粉砂岩石灰化学改良

Glutamate-Induced Biophotonic Activities Show Spectral Blueshift in Aging Mice

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神经药理学报 2019年第Z1期 97-98页

作者： chen lin-hua WANG Zhuo XIA cheng-ming XIAO Fang-yan DAI Jia-pei Wuhan Institute for Neuroscience and Neuroengineering (WINN) South-Central University for Nationalities Department of Neurobiology College of Life SciencesSouth-Central University for Nationalities

Objective:Aging is one of the most important risk factors for Alzheimer’s disease. Previous studies found that neural signal communications and information processing in neural circuits possibly play an important role in neural information communication. Recent study found that glutamate-induced biophotonic activities and transmission in the nervous system present a spectral redshift from animals(in order of bullfrog,mouse,chicken,pig and monkey) to humans,which is consistent with the species evolution tree. This property may be a key biophysical basis for explaining high intelligence in humans because biophoton spectral redshift could be a more effective and economical measure of biophotonic signal communications and information processing in the human brain,However,it is still unclear whether the mechanism may relate to process of aging. Methods:Combining the ultra-weak biophoton imaging system(UBIS) with the improved biophoton spectral analysis device(BSAD),we detected and analyzed the spectral features of glutamate-induced biophotonic emission in brain slices in different age mice. Results:We found that glutamate-induced biophotonic activities and transmission in the brain present a spectral blueshift from young to old mice. This finding suggests that with the increase of age,especially in the process of aging,brain cells need higher energy biophotons to transmit neural information due to the gradual decrease of metabolic activities and the efficiency of nervous system in the process of neural signal transmission and processing. Conclusion:If biophotonic activity is involved in the transmission and coding of neural signals,then the biophoton spectral blueshift could prompt the decrease of signal transmission and processing efficiency with the process of aging,which may possibly be associated with a decline in cognitive ability during aging. This finding may provide new ideas for the prevention and treatment of aging-related diseases such as Alzheimer’s disease.

关键词： biophoton ultraweak photon emissions aging spectral blueshift & These authors contributed equally to this work and should be considered co-first authors

Aerodynamic Optimization and Flow Mechanism for a Compressor Cascade at Low Reynolds Number

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Journal of Thermal Science 2025年第1期34卷 92-109页

作者： LI lin ZHANG Jianshe chen Caiyan TAN Wei ZHANG Yanfeng Key Laboratory of Light-Duty Gas-Turbine Institute of Engineering ThermophysicsChinese Academy of Sciences University of Chinese Academy of Sciences National Key Laboratory of Science and Technology on Advanced Light-duty Gas-turbine

Low-Reynolds-number effect is an important factor affecting the performance of compressors and other main components of high-altitude long-endurance unmanned aerial *** improve the flow condition and reduce flow loss under the condition of high altitude and low Reynolds number(Re),this paper proposes an optimization process based on a surrogate model,which combines the class-shape transformation method(CST),the Latin hypercube sampling(LHS) method,the light gradient-boosting machine algorithm(LightGBM),and a genetic algorithm(GA) to optimize a high-subsonic compressor *** surrogate model is verified to be accurate and can be used in the optimization *** accuracy of the GA is higher than the other algorithms under common test *** optimization results are verified by numerical simulation,and the flow differences before and after optimization are compared,especially the flow within the boundary *** changing the blade shape,the optimization process adjusts the loading distribution to delay the transition of the optimized blade on the suction surface,which changes the turbulent reattachment in the laminar separation bubble(LSB) into laminar ***,the mixing loss induced by the turbulent reattachment of the LSB and the wake loss of turbulent separation at the trailing edge are significantly reduced,and the performance of the compressor profile is finally *** addition,turbulent separation of the optimized profile is delayed reducing the range of the wake region on the suction *** this optimization process,the reduction of total pressure loss coefficient at Re of 2.5×10～5,3.5×10～5,and 4.5×10～5 are 16.32%,20.76%,and 22.16%,respectively.

关键词： Reynolds number