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| 1 | BPF-based reconstruction algorithm for multiple rotation-translation scan mode显示文摘In industrial CT,it is often required to inspect large objects using short line-detectors. To acquire the complete CT data for the scan-ning slice of large objects using short line-detectors,some multi-scan modes have been developed. But the existing methods reconstruct-ing an image from the data scanned by multi-scan modes have to rebin the data into fan-beam or parallel-beam form via data interpolation. The data rebinning process not only increases great computational cost,but also degrades image resolution. In this paper,we propose a backprojection-filtration (BPF)-based reconstruction algorithm for rotation-translation (RT) multi-scan mode. An impor-tant feature of the proposed algorithm is that data rebinning process is not introduced. The simulation results have verified the validity of the proposed algorithm. | Ming Chen Huitao Zhang Peng Zhang | 2008 | Progress in Natural Science:Materials International2008，18，2： | 8 |
| 2 | Change of Soil Organic Carbon after Cropland Afforestation in ′Beijing-Tianjin Sandstorm Source Control′ Program Area in China显示文摘Land use change is one of the major factors that affect soil organic carbon(SOC) variation and global carbon balance. However, the effects of land use change on SOC are always variable. In this study, using a series of paired-field experiments, we estimated the effects of revegetation types and environmental conditions on SOC stock and vertical distribution after replacement of cropland with poplar(Populus tomentosa) and korshinsk peashrub(Caragana korshinskii) in three climate regions(Chifeng City, Fengning City and Datong City of the ′Beijing-Tianjin Sandstorm Source Control′(BTSSC) program area. The results show that SOC sequestration rate ranges from 0.15 Mg/(ha·yr) to 3.76 Mg/(ha·yr) in the soil layer of 0–100 cm in early stage after cropland afforestation in the BTSSC program area. The SOC accumulation rates are the highest in Fengning for both the two vegetation types. Compared to C. korshinskii, P. tomentosa has greater effects on SOC accumulation in the three climate regions, but significantly greater effect only appears in Datong. The SOC density increases by 20%–111% and 15%–59% for P. tomentosa and 9%–63% and 0–73% for C. korshinskii in the 0–20 cm and 20–100 cm soil layers, respectively. Our results indicate that cropland afforestation not only affects SOC stock in the topsoil, but also has some effects on subsoil carbon. However, the effect of cropland afforestation on SOC accumulation varied with climate regions and revegetation types. Considering the large area of revegetation and relatively high SOC accumulation rate, SOC sequestration in the BTSSC program should contribute significantly to decrease the CO2 concentration in the atmosphere. | ZENG Xinhua ZHANG Wanjun LIU Xiuping CAO Jiansheng SHEN Huitao ZHAO Xin ZHANG Nan-nan BAI Yuru Yi Mei | 2014 | Chinese Geographical Science2014，24，4： | 6 |
| 3 | Comparison of winter wheat yield sensitivity to climate variables under irrigated and rain-fed conditions显示文摘庄稼模拟模型提供决定庄稼产量的敏感到气候变化的其他、不太费时间、划算的工具。在这研究,二个动态机械学的模型,谷神星(庄稼环境资源合成)和 APSIM (农业生产系统模拟器),被用来在灌溉的井( CFG )下面模仿小麦( Triticum aestivum L.)的收益并且喂雨( YY )在北方中国平原( NCP )在与不同气候变量的关系调节。学习测试了冬季小麦收益敏感到温度,放射,降水,和大气的二氧化碳的不同层次(在在在 NCP 的 Luancheng Agro 生态系统试验性的车站的 CFG 和 YY 条件下面的公司 2) 集中。从 CERES 和 APSIM 小麦庄稼模型的结果大部分是一致的并且建议在气候变量的变化在 NCP 影响了小麦谷物产量。也在到在不同的水(CFG 和 YY ) 下面的气候变量的产量调节的冬季小麦的敏感有重要变化。当时 2 湩漠桴牥瀠潥汰 e 的温度增加? | Dengpan XIAO Yanjun SHEN He ZHANG Juana P. MOIWO Yongqing QI Rende WANG Hongwei PEI Yucui ZHANG Huitao SHEN | 2016 | Frontiers of Earth Science2016，10，3： | 4 |
| 4 | Carbon Storage Capacity of Different Plantation Types Under Sandstorm Source Control Program in Hebei Province, China显示文摘Afforestation and reforestation are effective and ecological ways of mitigating elevated atmospheric carbon dioxide(CO2) concentration and increasing carbon(C) storage in terrestrial ecosystems. In this study, we measured the above-ground(tree, herbaceous plants and litter) and below-ground(root and soil) C storage in an aspen plantation(Populus davidiana) monoculture(PD), a larch plantation(Larix pincipis-rupprechtii) monoculture(LP), a pine plantation(Pinus tabulaeformis) monoculture(PT), a larch and birch mixed plantation(L. pincipis-rupprechtii and Betula platyphlla mixed)(MLB), and an apricot plantation(Armeniaca sibirica) monoculture(AS) under the Desertification Combating Program in Hebei Province, the northern China. The objective was to assess the effect of afforestation species on ecosystem C pools of different plantation types. Results showed that C storage of LP stand(258.0 Mg/ha) and MLB(163.4 Mg/ha) were significantly higher than the C storage in PD(45.5 Mg/ha), PT(58.9 Mg/ha) and AS(49.4 Mg/ha), respectively. Soil C was the main carbon pool of the ecosystem C storage in the five plantation stands, ranging from 31.4 Mg/ha to 232.5 Mg/ha, which accounted for 69.0%–90.1% of the total ecosystem C storage. The C storage in tree layer was about 5.2%–23.2% of ecosystem C storage. The herbaceous plants and litter layers contained 1.0%–6.0% and 1.5%–3.3% of ecosystem C storage, respectively. Our results suggest that tree species should be incorporated to accurately develop regional C budget of afforestation program, and also imply that substantial differences in ecosystem C stocks among plantation types can facilitate decision making on C management. | SHEN Huitao ZHANG Wanjun YANG Xue LIU Xiuping CAO Jiansheng ZENG Xinhua ZHAO Xin CHEN Xuexun ZHANG Wenxi | 2014 | Chinese Geographical Science2014，24，4： | 3 |
| 5 | Out-of-time-order correlation for many-body localization显示文摘In this paper we first compute the out-of-time-order correlators(OTOC) for both a phenomenological model and a random-field XXZ model in the many-body localized phase. We show that the OTOC decreases in power law in a many-body localized system at the scrambling time. We also find that the OTOC can also be used to distinguish a many-body localized phase from an Anderson localized phase,while a normal correlator cannot. Furthermore, we prove an exact theorem that relates the growth of the second Rényi entropy in the quench dynamics to the decay of the OTOC in equilibrium. This theorem works for a generic quantum system. We discuss various implications of this theorem. | Ruihua Fan Pengfei Zhang Huitao Shen Hui Zhai | 2017 | Science Bulletin2017，62，10： | 3 |
| 6 | Effect of Dietary Olaquindox on the Growth of Large Yellow Croaker(Pseudosciaena crocea R.) and the Distribution of Its Residues in Fish Tissues显示文摘Olaquindox(OLA), one of quinoxaline-N, N-dioxides, has been put under ban. However it was used as a medicinal feed additive early; it promotes the growth of livestock and prevents them from dysentery and bacterial enteritis. In this study, we evaluated the effect of dietary OLA on the growth of large yellow croaker(Pseudosciaena crocea R.) and the histological distribution of OLA and its metabolite 3-methyl-quinoxaline-2-carboxylic acid(MQCA) in fish tissues. Four diets containing 0(control), 42.5, 89.5 and 277.2 mg kg-1 OLA, respectively, were formulated and tested, 3 cages(1.0 m × 1.0 m × 1.5 m) each diet and 100 juveniles(9.75 ± 0.35 g) each cage. The fish were fed to satiation twice a day at 05:00 am and 17:00 pm for 8 weeks. The survival rate of fish fed the diet containing 42.5 and 89.5 mg kg-1 OLA was significantly higher than that of fish fed the diet containing 0 and 277.2 mg kg-1 OLA(P < 0.05), while the weight gain rate of fish fed the diet containing 42.5 and 89.5 mg kg-1 OLA was significantly higher than that of fish fed the diet without OLA(control)(P<0.05), but similar to that of fish fed the diet with 277.2 mg kg-1 OLA. Fish fed the diet with 277.2 mg kg-1 OLA had the highest content of OLA and MQCA in liver(3.44 and 0.39 mg kg-1, respectively), skin(0.46 and 0.09 mg kg-1, respectively) and muscle(0.24 and 0.06 mg kg-1, respectively). In average, fish fed the diet containing OLA had the highest content of OLA and MQCA in liver which was followed by skin and muscle(P < 0.05), whereas OLA and MQCA were not detectable in control. Our findings demonstrated that OLA and MQCA accumulated in large yellow croaker when it was fed with the diet containing OLA, thus imposing a potential safety risk to human health. | LI Huitao WANG Weifang MAI Kangsen AI Qinghui ZHANG Chunxiao ZHANG Lu | 2014 | Journal of Ocean University of China2014，13，5： | 3 |
| 7 | An Outbreak of the SARS-CoV-2 Omicron Variant BA.1—Zhuhai City,Guangdong Province,China,January 13,2022显示文摘On January 13,2022,Zhuhai CDC received a notification that a coronavirus disease 2019(COVID-19)case was found in the fever clinic in nearby Zhongshan City.Zhuhai CDC promptly carried out large-scale population screening in three nearby counties.A total of 4 COVID-19 cases were found in Nanping County.34 cases were screened from close contacts,and 2 cases were reported from close contacts in other cities of Guangdong Province.The 20 cases were sequenced by Guangdong CDC and identified as the variant of concern(VOC)/Omicron variant BA.1.Since January 14,Zhuhai has carried out 8 rounds of nucleic acid screening for COVID-19 in the county where the cases occurred.Four large-scale nucleic acid screening tests for COVID-19 were conducted across the city,and no new community cases were reported after January 15. | Feng Ruan Xuebao Zhang Songjian Xiao Xihe Ni Xiling Yin Zhongwen Ye Guorong Chen Tingting Zhu Zeling Chen Gang Yao Long Chen Sichen Huang Huitao Huang Yi Zhou Heyan Wu Hui Huang Kejing Zhu Shanzi Huang Xiaoou Tang Min Kang Bosheng Li Wenhua Mei | 2022 | China CDC weekly2022，4，30： | 2 |
| 8 | Effect of electron-withdrawing units on triphenylamine-based small molecules for solution-processed organic solar cells显示文摘Organic small molecules(TPA-BT3T,TPA-PT3T,and TPA-DFBT3T)using triphenylamine as a donor unit,terthiophene as a bridge,and benzo-2,1,3-thiadiazole(BT),[1,2,5]thiadiazolo[3,4-c]pyridine(PT)or 5,6-difluorobenzo[c][1,2,5]thiadiazole(DFBT)as an acceptor unit were designed and synthesized through Suzuki coupling reactions.These molecules exhibited good thermal stability with decomposition temperatures over 380°C and broad absorption from 300 to 700 nm.Photovoltaic devices were fabricated with these small molecules as donors and PC71BM as an acceptor.The TPA-BT3T based devices exhibited a power conversion efficiency of 2.89%,higher than those of the TPA-PT3T-and TPA-DFBT3T-based devices(1.34%and1.54%respectively).The effects of electron-withdrawing units on absorption,energy level,charge transport,morphology,and photovoltaic properties also were investigated. | Yifan Wang Huitao Bai Pei Cheng Mingyu Zhang Xiaowei Zhan | 2015 | Science China Chemistry2015，58，2： | 2 |
| 9 | Spatial variations of throughfall through secondary succession of evergreen broad-leaved forests in eastern China显示文摘 | Shen Huitao Wang Xiaoxue Jiang Yue | 2012 | Hydrological Processes2012，26，11： | 1 |
| 10 | Effects of dietary protein to energy ratios on growth and body composition of juvenile Japanese seabass,Lateolabrax japonicus显示文摘 | QINGHUI AI KANGSEN MAI HUITAO LI | 2004 | Aquaculture2004，230，14： | 1 |
| 11 | Effects of dietary protein to energy ratios on growth and body compo- sition of juvenile Japanese seabass, Lateolabrax japonicus 显示文摘 | AI Qinghui MAI Kangsen LI Huitao | 2004 | Aquaculture2004，230，1： | 1 |
| 12 | Model-based segmentation and tracking of head-and-shoulder video objects for real time multimedia services显示文摘 | Luo Huitao Eleftheriadis Alexandros | 2003 | IEEE Transactions on Multimedia2003，5，3： | 1 |
| 13 | Optical selection of segmentation algorithms based on performance evaluation显示文摘 | Zhang Yujin Luo Huitao | 2000 | Optical Engineering2000，39，6： | 1 |
| 14 | Highly Thermally Conductive Polymer/Graphene Composites with Rapid Room‑Temperature Self‑Healing Capacity显示文摘Composites that can rapidly self-healing their structure and function at room temperature have broad application prospects.However,in view of the complexity of composite structure and composition,its self-heal is facing challenges.In this article,supramolecular effect is proposed to repair the multistage structure,mechanical and thermal properties of composite materials.A stiff and tough supramolecular frameworks of 2-[[(butylamino)carbonyl]oxy]ethyl ester(PBA)–polydimethylsiloxane(PDMS)were established using a chain extender with double amide bonds in a side chain to extend prepolymers through copolymerization.Then,by introducing the copolymer into a folded graphene film(FGf),a highly thermally conductive composite of PBA–PDMS/FGf with self-healing capacity was fabricated.The ratio of crosslinking and hydrogen bonding was optimized to ensure that PBA–PDMS could completely self-heal at room temperature in 10 min.Additionally,PBA–PDMS/FGf exhibits a high tensile strength of 2.23±0.15 MPa at break and high thermal conductivity of 13±0.2 W m^(−1)K^(−1);of which the self-healing efficiencies were 100%and 98.65%at room temperature for tensile strength and thermal conductivity,respectively.The excellent self-healing performance comes from the efficient supramolecular interaction between polymer molecules,as well as polymer molecule and graphene.This kind of thermal conductive self-healing composite has important application prospects in the heat dissipation field of next generation electronic devices in the future. | Huitao Yu Can Chen Jinxu Sun Heng Zhang Yiyu Feng Mengmeng Qin Wei Feng | 2022 | Nano-Micro Letters2022，14，8： | 1 |
| 15 | Modulation format independent blind polarization demultiplexing algorithms for elastic optical networks显示文摘We demonstrate a novel modulation format independent algorithm for adaptive blind polarization demultiplexing for elastic optical networks(EONs). We compare the proposed algorithm with traditional constant modulus algorithm(CMA) and radius-directed algorithm(RDA), in terms of performance in PM-QPSK,PM-16 QAM and PM-64 QAM coherent system, by simulating in back-to-back(BTB) and transmission sceneries.The simulation result shows that the modulation format independent algorithm can achieve universal adaptive blind polarization demultiplexing for PM-m QAM signals and gain slightly better performance in condition of lower optical signal noise ratio(OSNR). Furthermore, we also carry out experiments to investigate the performance of the proposed algorithm in BTB and 800 km transmission scenarios for 16 GBaud PM-QPSK and PM-16 QAM. The experimental results demonstrate the conclusion of the numerical simulations. | Tao YANG Wentao LIU Xue CHEN Erkun SUN Huitao WANG Taili WANG Min ZHANG Jie ZHANG Yuefeng JI | 2017 | Science China(Information Sciences)2017，60，2： | 1 |
| 16 | Use of Experimental Design and Artificial Neural Network in Optimization of Capillary Electrophoresis for the Determination of Nicotinic Acid and Nicotinamide in Food Compared with High-Performance Liquid Chromatography显示文摘 | Guangfen Mu Feng Luan Huitao Liu | 2012 | Food Analytical Methods2012，，5： | 1 |
| 17 | Effects of dietary protein to energy ratios on growth and body composition of juvenile Japanese seabass,Lateolabrax japonicus显示文摘 | Ai Qinghui Mai Kangsen Li Huitao | 2004 | Aquaculture2004，230，： | 1 |
| 18 | Effects of Montmorillonite on Pb Accumulation, Oxidative Stress, and DNA Damage in Tilapia (Oreochromis niloticus) Exposed to Dietary Pb显示文摘 | Wei Dai Linglin Fu Huahua Du Huitao Liu Zirong Xu | 2010 | Biological Trace Element Research2010，，1： | 1 |
| 19 | Tian Matrix Solid- Phase Dispersion Extraction and Capillary Electrophoresis Determination of Tetracycline Residues in Milk显示文摘 | Mu Guangfen Liu Huitao Xu Lina | 2012 | FOOD ANALYTICAL METlqODS2012，5，1： | 1 |
| 20 | Effects of Gear Manufacturing Error on the Dy-namic Characteristics of Planetary Gear Trans-mission System of Wind Turbine 显示文摘 | Chen Huitao Wu Xiaoling Qin Datong | 2011 | AppliedMechanics and Material2011，86，： | 1 |
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