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Challenges Brought about by Rapid Changes in Chinese Diets: Comparison with Developed Countries and Implications for Further Improvement

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Biomedical and Environmental Sciences 2018年第10期31卷 781-786页

作者： zhao Li Yun LIU Dan YU Dong Mei ZHANG Jian WANG Jing Zhong zhao Wen Hua National Institute for Nutrition and Health Chinese Center for Disease Control and Prevention

Given developments in urbanization, agricultural, and technological practices, the diet and lifestyle of developed countries has changed dramatically over the course of the last century[1].

关键词： Challenges Brought about by Rapid Changes in Chinese Diets Comparison with Developed Countries and Implications for Further Improvement

Differences in MITF gene expression and histology between albino and normal sea cucumbers (Apostichopus japonicus Selenka)

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Chinese Journal of Oceanology and Limnology 2012年第1期30卷 80-91页

作者： zhao Heling YANG Hongsheng zhao Huan LIU Shilin WANG Tianming Graduate University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China

Albino Apostichopus japonicus occur both in the wild and in captivity. The offspring of albino A. japonicus also suffer from albinism. The formation of melanin in the melanocytes is dependant on microphthalmia-associated transcription factor (MITF). To investigate the role of MITF in controlling albinism, we cloned the full-length MITF cDNA from A. japonicus and compared MITF mRNA expression in albino and normal A. japonicus. In addition, we used light and electron microscopy to compare histological samples of normal and albino A. japonicus. The body wall of albino adults was characterized by significantly lower levels of MITF expression and lower numbers of epidermal melanocytes, which also contained less melanin. In albino juvenile offspring, MITF expression levels were significantly lower 32 d after fertilization and there were fewer, and less developed, epidermal melanocytes. Thus, we conclude that albino A. japonicus have fewer melanocytes and a reduced ability to synthesize melanin, likely because of lower expression of MITF.

关键词： microphthalmia-associated transcription factor (MITF) melanocyte melanosome melanin Apostichopus japonicus

Aero-optic imaging deviation prediction based on ISSA-ELM

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Optoelectronics Letters 2023年第7期19卷 425-431页

作者： XU Liang zhao Shiwei WANG Tao Tianjin Key Laboratory for Control Theory&Applications in Complicated Systems School of Electrical Engineering and AutomationTianjin University of TechnologyTianjin 300384China School of Intelligent Engineering Sun Yat-sen UniversityGuangzhou 510275China

When the aircraft is moving at high speed in the atmosphere,aero-optical imaging deviation will appear due to the influence of aero-optical *** order to achieve real-time compensation during the flight of the aircraft,it is necessary to analyze and predict the obtained imaging deviation *** order to improve the search speed and accuracy of the prediction algorithm and the ability to jump out of local optimum,in this paper,an improved sparrow search algorithm optimized extreme learning machine(ISSA-ELM) neural network model is proposed to predict the aero-optical imagine ***,the performance of ISSA-ELM,ELM neural network and SSA-ELM neural network was *** results showed that compared with ELM and SSA-ELM algorithms,the convergence speed of ISSA-ELM was significantly enhanced,and the accuracy of data prediction was also significantly improved.

关键词： effect. deviation extreme

Rapid on-line non-destructive detection of the moisture content of corn ear by bioelectrical impedance spectroscopy

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International Journal of Agricultural and Biological Engineering 2015年第6期8卷 37-45页

作者： zhao Pengfei Zhang Hanlin zhao Dongjie Wang Zhijie Fan Lifeng Huang Lan Ma Qin Wang Zhongyi College of Information and Electrical Engineering China Agricultural UniversityBeijing 100083China Modern Precision Agriculture System Integration Research Key Laboratory Ministry of EducationBeijing 100083China Key Laboratory of Agricultural Information Acquisition Technology(Beijing) Ministry of AgricultureBeijing 100083China

Moisture content of corn directly affects its quality and storage time,and the rapid on-line detection of the moisture content of corn ears not threshed or in vivo in the fields is *** of the special shape of corn ear,the rapid,low cost and non-destructive bioelectrical impedance measurement is more suitable for its moisture content *** the four-electrode method with the Agilent E4980A precision LCR meter,the electrical impedance spectroscopies of the sweet corn ears and waxy corn ears at different moisture contents were *** frequency range of the detection was from 20 Hz to 2 MHz and to enhance the contact,the attached-type electrodes were wrapped in cotton soaked with 0.1%NaCl *** impedance data over the frequency range from 300 Hz to 5 kHz were used to obtain the parameters of the bio-impedance Cole-Cole *** results showed a good linear correlation(coefficient of determination R2=0.960)between the equivalent parallel resistance R∞of sweet corn ear and the moisture content value determined by standard chemical *** research proved that the bioelectrical impedance spectroscopy can be used for detecting the moisture content of corn ear.

关键词： moisture content non-destructive detection bioelectrical impedance spectroscopy corn ear

Prognosis prediction and immune microenvironment features of breast cancer indicated by a cuproptosis-associated long non-coding RNA signature

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Genes & Diseases 2024年第5期11卷 66-69页

作者： Siyi Liu Juanchan Huang Wei zhao Department of Radiation Oncology Guangxi Medical University Cancer HospitalNanningGuangxi 530000China Guangxi Medical University NanningGuangxi 530000China Department of Oncology Affiliated Wuming Hospital of Guangxi Medical UniversityNanningGuangxi 530000China

Cuproptosis is a newly discovered type of programmed cell death that involves the depletion of intracellular copper and is not influenced by other inhibitors of programmed cell *** modality was first identified and named by Tsvetkov et al in the previous year.1 To further explore the relationship between cuproptosis,the tumor microenvironment,immunotherapy,and prognosis for breast cancer(BC),the expression patterns of 19 cuproptosis-related long non-coding RNAs(lncRNAs)were determined using data from the Cancer Genome Atlas(TCGA).

关键词： breast cancer microenvironment

Investigation of the oil-seawater mixed flow under an electromagnetic field

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Acta Oceanologica Sinica 2019年第7期38卷 14-21页

作者： Aiwu Peng Lingzhi zhao Xiaoqiang Chen Qingfan Zhang Ciwen Sha Jianping zhao Ran Li zhaolian Wang Institute of Electrical Engineering Chinese Academy of SciencesBeijing 100190China School of Electronic Electrical and Communication EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China China Offshore Environmental Service Ltd. Tianjin 300457China Shandong Huate Magnetism Technology Co. Ltd.Linqu 262600China

The electromagnetic separation method is a new approach to treat ship-based marine oily wastewater,in which oil droplets are dispersed in seawater(oil-seawater mixed flow).In order to clarify the separation process and determine the separation characteristics,the flow field and volume fraction of the oil droplets of the oil-seawater mixed flow under an applied electromagnetic field with different operating conditions were investigated by 2D numerical simulations with the Eulerian *** results show that:(1)the downward Lorentz force causes seawater to flow downwards and the oil droplets to move upwards due to the electromagnetic separation force in the effective section of the separation channel;(2)the volume fraction of the oil droplets at the top of the outlet section increases with the current density,magnetic field,and the diameter of the oil droplet and decreases with the inlet velocity of the oily *** results provide useful guidance for the design of electromagnetic separation devices of the oil-seawater mixed flow.

关键词： oil-seawater mixed flow electromagnetic field oil-seawater separation marine oil pollution

Multiple ultra-wideband signal sources exploiting XPM in SFRL

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Optoelectronics Letters 2022年第2期18卷 77-84页

作者： zhao Zanshan XING Weiguang GAN Weiming Haikou Lab Institute of AcousticsChinese Academy of SciencesHaikou 570100China

A novel scheme for all-optical broadcast ultra-wideband(UWB) monocycle pulses generation based on cross-phase modulation(XPM) in semiconductor fiber ring laser(SFRL) is proposed, in which three UWB positive or negative monocycle pulses can be generated simultaneously. A comprehensive broad-band dynamic model for this kind of all-optical broadcast UWB monocycle sources is established, which is further applied to numerically analyze the impacts of injection current of semiconductor optical amplifier(SOA), the power and wavelength of the signal light on the performance of the UWB positive monocycle pulses with higher power spectral density. The results show that the spectra of the UWB positive and negative monocycle pulses generated by this scheme match the Federal Communications Commission(FCC) definition quite well. Three UWB positive monocycle pulses with better performance can be obtained when the power of signal light is at a high level, and three other UWB positive monocycle pulses with good tolerance to both the injection current of the SOA and the wavelength of the signal light can be obtained. In addition, the powers of the lasing light coupled into the SFRL should not be strong to obtain three UWB positive monocycle pulses with better performance.

关键词： signal wideband amplifier

The synthesis of carbon microspheres film composed of nano-onions and its application as flexible supercapacitors

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Carbon Energy 2021年第3期3卷 509-518页

作者： Miao Zhang Naiqin zhao Xifei Li Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials School of Physics and Materials ScienceTianjin Normal UniversityTianjinChina Tianjin Key Laboratory of Composite and Functional Materials School of Materials Science and EngineeringTianjin UniversityTianjinChina

Flexible electrodes with superior mechanical and electrochemical properties are essential for flexible supercapacitors.A convenient and scalable colloidal film-assisted chemical vapor deposition(CF-CVD)method is developed for the one-step fabrication of the carbon microspheres films composed of carbon nano-onions(CMS-CNO films).The influence of growth conditions(such as growth temperature,time,and gas ratio)during CF-CVD process on the carbon structures and the growth mechanism of the CMS-CNO films have been *** controlling the growth conditions,the controllable preparation of CMS-CNO films is *** binder-free films can be used for the assembly of flexible supercapacitors,and unique architecture can achieve excellent *** from the composite of nano-micro zero dimensional structures,the performance of the film in supercapacitors is remarkably *** the current density of 5 mA cm^(-2),the area-specific capacity can be 903 mF cm^(-2).When the current density is increased to 500 mA cm^(-2),the area-specific capacity can be increased to 729 mF cm^(-2).This simple and low-cost preparation process and the superb electrochemical performance suggest great potential applications of CMS-CNO films in flexible supercapacitors.

关键词： carbon nano-onions composite films flexible supercapacitors

A DFT and TD-DFT study on electronic structures and UV-spectra properties of octaethyl-porphyrin with different central metals(Ni, V, Cu, Co)

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Chinese Journal of Chemical Engineering 2020年第2期28卷 532-540页

作者： XiaoqinWang Shiyi Li Liang zhao Chunming Xu Jinsen Gao College of Science China University of Petroleum(Beijing)Beijing 102249China State Key Laboratory of Heavy Oil Processing China University of Petroleum(Beijing)Beijing 102249China

In this work,the octaethyl-porphyrins with different central metals(M-OEP,M=Ni,VO,Cu,Co)were used to investigate the ground-state molecular structure,electron distribution and UV-spectra properties on molecular level by density functional theory(DFT).The results showed that the calculation structure parameters of metalloporphyrins agreed well with the experimental *** to the Natural Bond Orbital(NBO)analysis,the charge distribution of different metalloporphyrins was found that the charge values of the central metal M decreased with the order of VONi>Co>*** the same time,the frontier molecular orbital calculations showed that the SOMO energy of VO(OEP)molecules in the open-shell system was higher than that of Co(OEP)and Cu(OEP),which means that its UV absorption characteristic peak would be *** addition,the IEFPCM model of Time-dependent Density functional theory(TD-DFT)was further utilized to simulate the four substance in toluene solution:Co(OEP),Ni(OEP),Cu(OEP)and VO(OEP),and the Soret band peaks were calculated respectively as:382 nm,383 nm,391 nm and 401 ***,the quantitative simulation analysis of metalloporphyrins was combined with experimental *** could be found that the location rules of the four kinds of metalloporphyrins calculated absorption characteristic peaks were consistent with the experimental ones,and the relative errors of each peak were within 3%.These methods used above provide a theoretical path for analyzing and identifying unknown porphyrin compounds in petroleum.

关键词： Metallic impurity Metalloporphyrin Asphaltenes Quantum chemistry UV–vis spectrum