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| 1 | Features of colorectal cancer in China stratified by anatomic sites:A hospital-based study conducted in university-affiliated hospitals from 2014 to 2018显示文摘Objective:The clinical and biological characteristics of colorectal cancer have been found to differ depending on the anatomic site of the cancer.However,for Chinese patients,there is limited information on the proportion of cases at each site and the related features.In this study,we explored the location,distribution and other features of colorectal cancers at each anatomic site in Chinese patients.Methods:We conducted a hospital-based study using hospitalization summary reports from 10 Peking University-affiliated hospitals from 2014 to 2018;the reports covered a total of 2,097,347 hospitalizations.Incident cases were chosen as the study population,and their epidemiological features were further analyzed.Results:A total of 20,739 colorectal cancer patients were identified.Rectum was the most common location(48.3%)of the cancer,whereas the proportions of patients with distal and proximal colon cancer were 24.5%and18.6%,respectively.Patients with rectal cancer were predominantly male and were the youngest for all anatomical sites(each P<0.001).The highest proportion of emergency admissions,the longest hospital stays and the highest hospitalization costs were found in patients with proximal colon cancer(each P<0.001).The proximal colon cancer subgroup included the highest proportions of patients with medical histories of cholecystectomy,cholecystolithiasis and/or gallbladder polyps and appendectomy(P=0.009,P<0.001 and P<0.001,respectively).The distal colon cancer subgroup included the highest proportions of patients with medical histories of diabetes and hypertension(P<0.001,respectively).Conclusions:The patterns of colorectal cancer observed in this study differ from those reported for Western patients and show a significantly higher proportion of patients with rectal cancer.Different epidemiological features were also found based on anatomic sites.Further studies based on tumor location should be conducted to facilitate more accurate screening and treatment. | Ruize Qu Yanpeng Ma Liyuan Tao Xiaoyuan Bao Xin Zhou Bingyan Wang Fei Li Siyi Lu Lin Tuo Siyan Zhan Zhipeng Zhang Wei Fu | 2021 | Chinese Journal of Cancer Research2021，33，4： | 10 |
| 2 | A novel scalable synthesis process of PPTA by coupling n-pentane evaporation for polymerization heat removal显示文摘In this study,we compared the effect of n-pentane and ice-water bath on removing the thermal effect in the poly(p-phenylene terephthalamide)(PPTA) polymerization process.The results indicate that the n-pentane can help to transfer the reaction heat faster and better.Adding suitable amount of n-pentanes into the PPTA preparation process not only improve the heat transfer,but also reduce the motor power in the polymerization process.Moreover,the introduction of n-pentane properly does not result in decrease of the inherent viscosity(η_(inh)) of polymer.Instead,it leads to increased viscosity of polymer during the PPTA preparation process.The results indicate that n-pentane can effectively transfer the reaction heat and avoid overheating during the polymerization of PPTA. | Tao Zhang Guo Hua Luo Fei Wei Yan Yan Lu Wei Zhong Qian Xin Lin Tuo | 2011 | Chinese Chemical Letters2011，22，11： | 8 |
| 3 | Performances of different efficiency calibration methods of high-purity-germanium gamma-ray spectrometry in an inter-comparison exercise显示文摘This study reports the performances of efficiency calibrations for high-purity-germanium gamma-ray spectrometry using the source-, Laboratory Sourceless Object Calibration Software(LabSOCS)-and ANGLE-based methods in an inter-comparison exercise. Although the results of LabSOCS and ANGLE for ^(241)Am emitting lowenergy gamma rays were not very satisfactory, all of the three efficiency calibration methods passed acceptance criteria. The results confirmed the reliability of the calculation codes ANGLE and LabSOCS as alternative efficiency calibration methods in high-purity-germanium gamma spectrometry. This study is likely to promote the further application of the ANGLE and LabSOCS calculation codes in radioactivity measurements. | Bao-Lu Yang Qiang Zhou Jing Zhang Shuai-Mo Yao Ze-Shu Li Wen-Hong Li Fei Tuo | 2019 | Nuclear Science and Techniques2019，30，3： | 5 |
| 4 | Thrombin induces ACSL4-dependent ferroptosis during cerebral ischemia/reperfusion显示文摘Ischemic stroke represents a significant danger to human beings,especially the elderly.Interventions are only available to remove the clot,and the mechanism of neuronal death during ischemic stroke is still in debate.Ferroptosis is increasingly appreciated as a mechanism of cell death after ischemia in various organs. | Qing-zhang Tuo Yu Liu Zheng Xiang Hong-Fa Yan Ting Zou Yang Shu Xu-long Ding Jin-jun Zou Shuo Xu Fei Tang Yan-qiu Gong Xiao-lan Li Yu-jie Guo Zhao-yue Zheng Ai-ping Deng Zhang-zhong Yang Wen-jing Li Shu-ting Zhang Scott Ayton Ashley I.Bush Heng Xu Lunzhi Dai Biao Dong Peng Lei | 2022 | Signal Transduction and Targeted Therapy2022，7，3： | 2 |
| 5 | Hierarchical Dispatch Method for Integrated Heat and Power Systems Based on a Feasible Region of Boundary Variables显示文摘Fully utilizing the flexibility provided by a district heating system(DHS)can promote wind power accommodation for an electric power system(EPS).However,for privacy or communication reasons,existing power and heat dispatch methods are not suitable for practical application.In this paper,a general math formulation of the hierarchical dispatch method is proposed to coordinate EPS and DHS operators based on the feasible region of boundary variables(FRBV),and a method based on the simplicial approximation approach is proposed to obtain a conservative FRBV approximation of a DHS.A simulation based on a real 41-node DHS is constructed to determine the factors that may impact the boundaries of the FRBV,and then the performance of the simplicial approximation approach is displayed by visualizing the approximation process for the FRBV,and finally three dispatch methods are compared to show the advantages of the proposed hierarchical dispatch method. | Tuo Jiang Yong Min Weichun Ge Lei Chen Qun Chen Fei Xu Huanhuan Luo Guiping Zhou | 2020 | CSEE Journal of Power and Energy Systems2020，6，3： | 2 |
| 6 | Experimental investigation on the radiation background inside body counters显示文摘In vivo measurement of radioactivity based on various body counters is arguably the leading measure used to determine the distribution and activity of radionuclides in human subjects,such as I-131 in the thyroid,Am-241 in the lungs,and Pb-210 in the skull.Throughout the measurements,the radiation background is the key factor that determines the sensitivity of the counter.Therefore,to facilitate in vivo measurements,a well-designed shielding room is required to create a low-background environment.However,because the compositions of the radiation background are quite complicated,the respective contributions from each source remain obscure,which places a considerable burden on seeking an optimized design of shielding rooms that strikes the optimum balance between the construction cost and background suppression effect.In this study,we conducted a systematic experimental investigation on the radiation background outside and inside four representative body counters with assorted designs using a variety of radiation detectors,including high-purity germanium detectors,CdZnTe detector,radon emanometer,and gamma-ray dosimeter.By carefully controlling the experimental conditions and synergetic analysis of the measurement results,in conjunction with previous studies,we separated and determined the relative contributions induced by environmental radiation(4%),airborne radon and its daughters(2%),the normal radioactivity of human subjects arising from K-40(58%),cosmic rays(12%),and radioactivity in shielding materials and measuring instruments(24%).Furthermore,based on these results,we discuss practical guidelines to design a shielding room for body counters. | Yu Wang Yuan-Yuan Liu Bin Wu Xiang-Peng Meng Jian-Ping Cheng Ying Wang Li-Jiao Wang Yun-Shi Xiao Qin-Jian Cao Jian-Feng Zhang Fei Tuo | 2022 | Nuclear Science and Techniques2022，33，2： | 2 |
| 7 | Dispatch Model for Integrated Heat and Power Systems Considering Internal Composition of CHP Plants显示文摘An integrated heat and power system(IHPS)is a promising approach for alleviating wind curtailment problems.In an IHPS,the combined heat and power(CHP)plant is the key component,which supplies both heat and electric loads,and couples the thermal system and power system.However,existing research commonly ignores or simplifies the internal composition of CHP plants,which could lead to some unavoidable errors.This paper focuses on the internal composition of CHP plants,and models the physical processes in different components and flexible resources in the CHP plant.Furthermore,a joint dispatch problem of an IHPS with the above CHP plant models is formulated,and an iterative algorithm is developed to handle the nonlinearity in this problem.Case studies are performed based on a real CHP plant in Northern China,and the results indicate that the synergistic effect of different energy resources in the CHP plant is realized by the joint dispatch model,which promotes wind power accommodation and reduces fossil fuel consumption. | Tuo Jiang Yong Min Guiping Zhou Lei Chen Qun Chen Fei Xu | 2021 | CSEE Journal of Power and Energy Systems2021，7，2： | 1 |
| 8 | Radionuclide content and risk analysis of edible mushrooms in northeast China显示文摘Objective:To explore the concentration level of radionuclide in mushrooms in northeast China,and to analyze the risk of the effective dose of edible mushrooms to the human body.Methods:A total of 68 samples of 18 species of mushrooms from three regions in northeast China and Beijing as control were collected from 2017 to 2020.The activity of radionuclide in mushrooms was measured by gammaspectrometry,and the activity was analyzed by statistical analysis.The relationship between ^(137)Cs and ^(40)K content in mushrooms was explored.Results:^(238)U was undetected in all samples.The activity concentration of ^(226)Ra,^(232)Th,^(40)K,^(137)Cs were in range of 1–34.3,2.26–32.3,208–2,388 and 0.6–130.3 Bq/kg,respectively.The ^(137)Cs and ^(40)K concentrations in mushrooms were not correlated.The risk analysis of radioactivity in the collected mushrooms showed that the highest effective dose of the 18 kinds of mushrooms was 0.042 mSv.Conclusion:The radionuclide content of mushrooms in northeast China is within the normal range.The mushrooms will not cause risk to human health. | Shuo Wang Baolu Yang Qiang Zhou Zeshu Li Wenhong Li Jing Zhang Fei Tuo | 2021 | Radiation Medicine and Protection2021，2，4： | 1 |
| 9 | Measurement of^(134)Xe(n,2n)^(133m),gXe reaction cross sections in 14‑MeV region with detailed uncertainty quantification显示文摘A lead-shielded HPGe detector and offlineγ-ray spectra of the residual product were used to measure the cross section(CS)and ratios of isomeric CS(σm/σg)in^(134)Xe(n,2n)^(133m),gXe reactions at different energies(13.5 MeV,13.8 MeV,14.1 MeV,14.4 MeV,14.8 MeV)relative to the^(93)Nb(n,2n)^(92)mNb reaction CS.The target was high-purity natural Xe gas under high pressure.The T(d,n)4He reaction produces neutrons.TALYS code(version 1.95)for nuclear reactions was used for calculations,with default parameters and nuclear level density models.The uncertainties in the measured CS data were thoroughly analyzed using the covariance analysis method.The results were compared with theoretical values,evaluation data,and previous experimental findings.CS data of the 134Xe(n,2n)133mXe and 134Xe(n,2n)133gXe reactions and the corresponding isomeric CS ratios at 13.5 MeV,13.8 MeV,and 14.1 MeV neutron energies are reported for the first time.This research advances our knowledge of pre-equilibrium emission in the(n,2n)reaction channel by resolving inconsistencies in the Xe data. | Jun‑Hua Luo Jun‑Cheng Liang Li Jiang Fei Tuo Liang Zhou Long He | 2023 | Nuclear Science and Techniques2023，34，1： | 1 |
| 10 | Preparation of polysaccharide glassy microparticles with stabilization of proteins显示文摘 | Weien Yuan Yan Geng Fei Wu Yajun Liu Meiyan Guo Hao Zhao Tuo Jin | 2008 | International Journal of Pharmaceutics2008，，1： | 1 |
| 11 | Preparing polymer-based sustained-release systems without exposing proteins to water–oil or water–air interfaces and cross-linking reagents显示文摘 | Tuo Jin Jiahao Zhu Fei Wu Weien Yuan Lee L. Geng Hua Zhu | 2008 | Journal of Controlled Release2008，，1： | 1 |
| 12 | Characteristics of soil organic carbon andtotal nitrogen storages for differentland-use types in Central Yunnan Plateau显示文摘Two-factor analysis of variance and redundancy analysis were used to analyze the characte-ristics of soil organic carbon total nitrogen storage in garden land,forestland,grassland,farmland,and bare land in the Dachunhe watershed of Jinning District,Kunming City,Yunnan Province,China.The effects of the soil organic carbon,total nitrogen stratification ratio,soil physical and chemical factors on the storage characteristics of organic carbon and total nitrogen of different land-use types were analyzed.The results show that the rates of carbon and nitrogen stratification in soil from 0-20 cm and 40-60 cm of the same land-use types differed are statistically significant(P<0.05).The organic carbon and total nitrogen stratification ratio SR1 of garden land soil are 38.5%and 25.3%,respectively,which are higher than SR^(2).The soil organic carbon and total nitrogen stratification ratio SR^(2) of different land-use types are greater than SR1.There are statistically significant differences in the SR^(2) soil organic carbon and total nitrogen stratification ratios(P<0.05).Soil organic carbon and total nitrogen storage of diffe-rent land-use types gradually decrease with increasing soil depth,with the maximum soil organic carbon and total nitrogen storage in the 0-20 cm soil layer.Soil organic carbon and total nitrogen sto-rage at the same soil depth are significantly different(P<0.05).Soil organic carbon and total nitrogen storage in the garden land are greater than those in the other land-use types.Soil organic carbon and total nitrogen storage in 0-20 cm garden land are 4.96 and 3.19 times than those in bare land,respectively;soil organic carbon and total nitrogen storage are explained by 93.66%and 1.53%in redundancy analysis RDA1 and RDA2,respectively.All physicochemical factors except Available Phosphorus and pH are statistically significance with carbon and nitrogen storage(P<0.05).Soil cationic exchange capacity,Available Phosphorus,C/N ratio,and Moisture Content are positively correlated with organic carbon and total nitrogen storage.In contrast,soil Bulk Density is negatively correlated with organic carbon storage and total nitrogen storage.Available Phosphorus,C/N ratio,and Moisture Content are the main factors promoting soil organic carbon and total nitrogen accumulation. | SHEN Fangyuan TUO Yunfei WANG Qian WANG Fei ZHENG Yang DU Wenjuan XIANG Ping | 2022 | 排灌机械工程学报2022，40，5： | 1 |
| 13 | Zircon Ages of Metasedimentary Rocks in the Wuwamen Ophiolitic Mélange,Chinese South Tianshan:Implications for the Paleozoic Subduction-Accretion in the Southern Central Asian Orogenic Belt显示文摘High-temperature and high-pressure(high-grade)metamorphic complexes of variable ages are common in the Central Asian orogenic belt(CAOB),and their precise geochronology and origin are essential to unravel the orogenic architecture and crust-production rate of the CAOB.Hereby it is essential to differentiate between pre-orogenic Precambrian basement and Paleozoic arc-accretionary complexes.This study provides precise in situ zircon U-Pb ages for the metasedimentary rocks in the Wuwamen ophiolitic mélange,which is traditionally thought to represent the pre-orogenic basement of the southwestern CAOB.A meta-sandstone from the meta-flysch sequence revealed a widespread ca.1.8 Ga high-grade metamorphic overprint similar to that of the underlying orthogneisses and,thus,was interpreted to represent pre-orogenic basement fragments that occur as tectonic blocks in the Paleozoic ophiolitic mélange.In contrast,a schist from the mélange matrix is characterized by a ca.333 Ma high-grade metamorphic overprint,indicating that the northward subduction of the South Tianshan Ocean was still active at this time.The thrust-imbricated high-grade metamorphic rocks of contrasting origins in an accretionary complex have important implications for the understanding the accretionary history and crustal growth of the CAOB.Furthermore,the strongly deformed ophiolitic mélange was intruded by an undeformed granite dyke with an emplacement age younger than ca.294 Ma,thus providing a minimum age limit for the final closure of the South Tianshan Ocean. | Xin-Shui Wang Fei Yang Reiner Klemd Tuo Jiang Jun Gao | 2022 | Journal of Earth Science2022，33，5： | 0 |
| 14 | Advance on monitoring of radioactivity in food in China and Japan after Fukushima nuclear accident显示文摘After the nuclear accident at the Fukushima Daiichi Nuclear Power Plant(Fukushima nuclear accident)in 2011,Japan quickly took emergency measures to reduce radiation hazards posed by the released radioactive materials.As a neighboring country of Japan across the East China Sea,China has also taken some corresponding prevention and control measures.China has continuously strengthened the monitoring of radioactivity in food in recent years.This paper discusses the revision of standards for radioactivity in food,the improvement of methods and equipment,and the updating of monitoring systems performed in China and Japan over the last ten years after the Fukushima Daiichi accident.In addition,this paper outlines the recent problems left over from the nuclear accident,puts forward some views on the progress of important topics,and gives some thoughts and prospects on the further improvement of the monitoring systems of radioactivity in food in China. | Shuying Kong Baolu Yang Fei Tuo Tianxiang Lu | 2022 | Radiation Medicine and Protection2022，3，1： | 0 |
| 15 | Paired quasi-periodic pulsations of hard X-ray emission in a solar flare显示文摘We investigate high time resolution data obtained by the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM)during the flare event on 2022 April 21 at 01:52 UT.Several subpeaks with durations of 4-6 s have been detected in the hard X-ray precursor phase,and the key feature is that they appear in pairs and seem like double-peak struc-tures.These subpeaks are rarely observed in hard X-ray band and confirmed by the microwave obtained by Nobeyama Radio Polarimeters(NoRP)and Radio Solar Telescope Network(RSTN).While an exponential function can describe the continuum component of the time profile from the precursor to part of the impulsive phase.The periods of quasi-periodic pulsations(QPPs)are detected to be about 7.3 and 12.8 s for the precursor and impulsive phase,respectively,with at least 95%confidence level.The paired QPPs are assumed to be double-peak QPPs and then the scenario of current loop coalescence model is found to be in good agreement with our observation.The precursor phase can be interpreted as the oscillating coalescence of two islands,while the impulsive phase can be interpreted as more islands to coalesce one by one to form larger islands. | Hai-Sheng Zhao Dong Li Shao-Lin Xiong Yan-Qiu Zhang Yang Su Wei Chen Yi Zhao Xiao-Bo Li Jia-Cong Liu Wen-Xi Peng Rui Qiao Xin-Qiao Li Xiang-Yang Wen Li-Ming Song Shi-Jie Zheng Xin-Ying Song Xiao-Yun Zhao Yue Huang Shuang-Nan Zhang Shuo Xiao Ce Cai Zheng-Hua An Can Chen Gang Chen Wei Chen Yan-Qi Du Min Gao Ke Gong Dong-Ya Guo Zhi-Wei Guo Jian-Jian He Bin Li Chao Li Chao-Yang Li Gang Li Jian-Hui Li Lu Li Qing-Xin Li Yan-Guo Li Jing Liang Xiao-Hua Liang Jin-Yuan Liao Xiao-Jing Liu Ya-Qing Liu Qi Luo Xiang Ma Bin Meng Ge Ou Dong-Li Shi Jing-Yan Shi Gong-Xing Sun Xi-Lei Sun You-Li Tuo Chen-Wei Wang Hui Wang Jin Wang Jin-Zhou Wang Ping Wang Wen-Shuai Wang Hong Wu Sheng-Lun Xie Yan-Bing Xu Yu-Peng Xu Wang-Chen Xue Sheng Yang Min Yao Jian-Ying Ye Qi-Bin Yi Chao-Yue Zhang Da-Li Zhang Fan Zhang Fei Zhang Hong-Mei Zhang Kai Zhang Peng Zhang Xiao-Lu Zhang Zhen Zhang Guo-Ying Zhao Shi-Yi Zhao Chao Zheng Xing Zhou Yue Zhu | 2023 | Science China(Physics,Mechanics & Astronomy)2023，66，5： | 0 |
| 16 | Progress of Simultaneous Measurement Method显示文摘The ratio of the radioisotopes to the stable isotope is the final result for AMS measurement. So, the beam current of stable isotope and the counts of rare radioisotopes are the important values in | DOU Yu-ling HE Ming TUO Fei JIANG Shan | 2007 | Annual Report of China Institute of Atomic Energy2007，，1： | 0 |
| 17 | Measurement of Negative Ion Current of ^(180)HfF_5^-as a Function of the Ratio of HfF_4 to Ag显示文摘In Accelerator mass spectrometry (AMS) measurement, it usually need mix metal powder into samples. During 182Hf measurement, usually we mix HfF4 with certain silver powder. As we found | TUO Fei JIANG Shan HE Ming BAO Yi-wen YOU Qu-bo HU Yue-ming WANG Wei DOU Yu-ling | 2006 | Annual Report of China Institute of Atomic Energy2006，，1： | 0 |
| 18 | AMS Measurement of “In-Situ Produced Cosmogenic” ^(10)Be in Loess Quartz from Luochuan显示文摘Loess is the most important and the most typical continental clastic sediments of Quaternary. So the measurement of 'In-situ produced cosmogenic' 10Be is expected to be used for the loess stratigraphic age. | DOU Yu-ling LIN Min HE Ming TUO Fei LI Chao-li JIANG Shan | 2007 | Annual Report of China Institute of Atomic Energy2007，，1： | 0 |
| 19 | Mass Resolution Measurement of New Injection System for AMS显示文摘The mass resolution of 80 for the old AMS injection system at CIAE could not satisfy the requirement for 182Hf measurement. Therefore, a new injector dedicated for AMS with a 90° spherical electrostatic deflection and a 112° double-focusing analyzing magnet was built with a designed maximum mass resolution of 430. | TUO Fei JIANG Shan HE Ming BAO Yi-wen YOU Qu-bo HU Yue-ming WANG Wei YU Dou-ling | 2006 | Annual Report of China Institute of Atomic Energy2006，，1： | 0 |
| 20 | Simultaneously Measurement Facility of AMS Inject System on AMS Injection System显示文摘The original HI-13 Tandem AMS measurements were carried out by using slow sequential measurement, this method can not satisfy high-precision measurement with long-lived radio nuclides. | DOU Yu-ling JIANG Shan HE Ming TUO Fei | 2006 | Annual Report of China Institute of Atomic Energy2006，，1： | 0 |
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