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| 1 | Current Control Strategy of Chain Circuit STATCOM显示文摘在链式静止同步补偿器(static synchronous compen-sator,STATCOM)小信号交流模型的基础上,提出简化的STATCOM电流控制闭环系统;分别对典型Ⅰ型、典型Ⅱ型控制系统的电流调节器进行参数优化及比较,分析表明,对于电流阶跃响应,系统处于线性控制状态时超调量相对百分比不变,处于限幅非线性状态时超调量绝对值不变;采用比例调节器的典型I型系统稳态精度稍差,但动态控制精度较高,适合用于链式STATCOM工程装置;在a-b-c坐标系下仿真表明,应用优化设计的典型Ⅰ型系统控制参数,链式STATCOM输出电流可以快速跟踪参考值变化,具有良好的稳定性和跟踪精度。 | WANG Xuan FU Jian TENG Letian SUN Lijing ZHAO Ruibin WU Shouyuan DENG Zhanfeng | 2012 | 中国电机工程学报2012，32，12： | 15 |
| 2 | Liver transplant recipients with portal vein thrombosis:a single center retrospective study显示文摘BACKGROUND:Portal vein thrombosis(PVT)used to be a contraindication for liver transplantation(LT).This obstacle has been delt with following the improvement of LT-related techniques and therapeutic approaches to thrombosis. But the effect of PVT on LT outcomes is still controversial. We reviewed retrospectively the outcome of LT patients with PVT as well as risk factors and surgical management according to PVT grades. METHODS:A total of 465 adult LTs were performed from December 2002 through December 2006.Operative findings and the result of preoperative ultrasonography and imaging were reviewed for PVT grading(Yerdel grading).Comparison of risk factors,variables associated with perioperative period and prognosis between recipients with and without PVT is based on the grades. RESULTS:In the 465 LTs,42 were operatively confirmed to have PVT(9.0%)(19 recipients with grade 1,14 with grade 2,7 with grade 3,and 2 with grade 4).Increased age and treatment of portal hypertension were associated with PVT.Grade 1 or 2 PVT was treated by direct anastomosis or single thrombectomy.In grade 3 PVT patients,the donor PV was directly anastomosed to the dilated branch of the recipient portal venous system or to the distal open superior mesenteric vein through an interposition vein graft if needed.Grade 4 PVT was managed by our modified cavoportal hemitransposition technique.The comparison between PVT patients and controls showed no significant difference in operative duration and blood transfusion(P>0.05).The flow rate of the PV was lower in the PVT patients(48.881±12.788 cm/s)than in the controls(57.172±21.715 cm/s,P<0.05).The PVT patients had such postoperative complications as renal failure and PV rethrombosis(P<0.05).The 1-year survival rates in PVT and non-PVT patients were 78.6%and 76.4%respectively (P>0.05);the 3-year survival rates were 58.8%and 56.4% respectively(P>0.05). CONCLUSIONS:PVT is not contraindicated for LT if it is graded.PVT recipients may have post-transplantation complications like renal failure and PV rethrombosis,and operative difficulty and patient survival are similar to those in recipients without PVT.Development of therapeutic approaches and accumulation of experience in dealing with PVT further improve the outcomes of LT in PVT recipients. | Tao, Yi-Feng Teng, Fei Wang, Zheng-Xin Guo, Wen-Yuan Shi, Xiao-Min Wang, Gui-Hua Ding, Guo-Shan Fu, Zhi-Ren | 2009 | Hepatobiliary & Pancreatic Diseases International2009，8，1： | 14 |
| 3 | Fabrication of homogeneously dispersed graphene/Al composites by solution mixing and powder metallurgy显示文摘Graphene-reinforced aluminum(Al) matrix composites were successfully prepared via solution mixing and powder metallurgy in this study. The mechanical properties of the composites were studied using microhardness and tensile tests. Compared to the pure Al alloy, the graphene/Al composites showed increased strength and hardness. A tensile strength of 255 MPa was achieved for the graphene/Al composite with only 0.3 wt% graphene, which has a 25% increase over the tensile strength of the pure Al matrix. Raman spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy were used to investigate the morphologies, chemical compositions, and microstructures of the graphene and the graphene/Al composites. On the basis of fractographic evidence, a relevant fracture mechanism is proposed. | Xiang Zeng Jie Teng Jin-gang Yu Ao-shuang Tan Ding-fa Fu Hui Zhang | 2018 | International Journal of Minerals,Metallurgy and Materials2018，25，1： | 13 |
| 4 | Parthenogenetic haploid embryonic stem cells produce fertile mice显示文摘 | Haifeng Wan Zhengquan He Mingzhu Dong Tiantian Gu Guan-Zheng Luo Fei Teng Baolong Xia Wei Li Chunjing Feng Xin Li Tianda Li Ling Shua Rui Fu Liu Wang Xiu-Jie Wang Xiao-Yang Zhao Qi Zhou | 2013 | Cell Research2013，23，11： | 13 |
| 5 | A data-driven method for syndrome type identification and classification in traditional Chinese medicine显示文摘The efficacy of traditional Chinese medicine(TCM) treatments for Western medicine(WM) diseases relies heavily on the proper classification of patients into TCM syndrome types.The authors developed a data-driven method for solving the classification problem,where syndrome types were identified and quantified based on statistical patterns detected in unlabeled symptom survey data.The new method is a generalization of latent class analysis(LCA),which has been widely applied in WM research to solve a similar problem,i.e.,to identify subtypes of a patient population in the absence of a gold standard.A well-known weakness of LCA is that it makes an unrealistically strong independence assumption.The authors relaxed the assumption by first detecting symptom co-occurrence patterns from survey data and used those statistical patterns instead of the symptoms as features for LCA.This new method consists of six steps:data collection,symptom co-occurrence pattern discovery,statistical pattern interpretation,syndrome identification,syndrome type identification and syndrome type classification.A software package called Lantern has been developed to support the application of the method.The method was illustrated using a data set on vascular mild cognitive impairment. | Nevin Lianwen Zhang Chen Fu Teng Fei Liu Bao-xin Chen Kin Man Poon Pei Xian Chen Yun-ling Zhang | 2017 | Journal of Integrative Medicine2017，15，2： | 11 |
| 6 | A Facile Synthetic Route to L-Phosphinothricin显示文摘A convenient and effective method for synthesis of L-phosphinothricin was described.The highlight was involved in a simple access to the key intermediate L-2-amino-4-chlorobutyricacid derivative from the inexpensive L-methionine. | Xue Song XU Han Bing TENG Guo Fu QIU Shu Cai LIANG Xian Ming HU | 2006 | Chinese Chemical Letters2006，17，2： | 9 |
| 7 | Type I interferons promote the survival and proinflammatory properties of transitional B cells in systemic lupus erythematosus patients显示文摘A hallmark of systemic lupus erythematosus(SLE)is the breaking of B-cell tolerance with the generation of high-affinity autoantibodies;however,the antibody-independent features of the B-cell compartment in SLE are less understood.In this study,we performed an extensive examination of B-cell subsets and their proinflammatory properties in a Chinese cohort of new-onset SLE patients.We observed that SLE patients exhibited an increased frequency of transitional B cells compared with healthy donors and rheumatoid arthritis patients.Plasma from SLE patients potently promoted the survival of transitional B cells in a type I IFN-dependent manner,which can be recapitulated by direct IFN-αtreatment.Furthermore,the effect of IFN-αon enhanced survival of transitional B cells was associated with NF-κB pathway activation and reduced expression of the pro-apoptotic molecule Bax.Transitional B cells from SLE patients harbored a higher capacity to produce proinflammatory cytokine IL-6,which was also linked to the overactivated type I IFN pathway.In addition,the frequency of IL-6-producing transitional B cells was positively correlated with disease activity in SLE patients,and these cells were significantly reduced after short-term standard therapies.Thus,the current study provides a direct link between type I IFN pathway overactivation and the abnormally high frequency and proinflammatory properties of transitional B cells in active SLE patients,which contributes to the understanding of the roles of type I IFNs and B cells in the pathogenesis of SLE. | Mei Liu Qiang Guo Chunmei Wu Delphine Sterlin Shyamal Goswami Ying Zhang Teng Li Chunde Bao Nan Shen Qiong Fu Xiaoming Zhang | 2019 | Cellular & Molecular Immunology2019，16，4： | 9 |
| 8 | Effects of Chinese herbal medicine Yiqi Huaju Formula on hypertensive patients with metabolic syndrome:a randomized,placebo-controlled trial显示文摘BACKGROUND:Patients with hypertension coupled with metabolic syndrome(MetS) are among the high risk population in cardiovascular and cerebrovascular diseases.To reduce the prevalence of cardiovascular and cerebrovascular diseases,it is essential to appropriately control blood pressure together with other cardiovascular risk factors. OBJECTIVE:The current study was designed to investigate the therapeutic effects on blood pressure,blood pressure variability and other cardiovascular risk factors by giving Yiqi Huaju Formula,a compound traditional Chinese herbal medicine,in addition to routine treatment to hypertensive patients coupled with MetS. DESIGN,SETTING,PARTICIPANTS AND INTERVENTIONS:A total of 43 patients with hypertension coupled with MetS were recruited into this study.The enrolled patients were randomly divided into the Chinese herbal formula group(anti-hypertensive drugs plus Yiqi Huaju Formula,CHF) and the control group(anti-hypertensive drugs plus placebo).The CHF group enrolled 22 patients while the control group received 21 cases.Treatments were given for 12 weeks in both groups. MAIN OUTCOME MEASURES:Parameters examined include 24-hour ambulatory blood pressure monitoring,body mass index,waist circumference,waist-to-hip ratio,homeostatic model assessment for insulin resistance(HOMA-IR),fasting glycosylated hemoglobin(HbA1c),fasting plasma glucose,2-hour postprandial plasma glucose(PPG),fasting plasma insulin,serum lipid,etc. RESULTS:Compared with the control group,the CHF group had significant improvement (PO.01) in anthropometric parameters,FPG,HOMA-IR,blood pressure amplitude,blood pressure variability and blood pressure load. CONCLUSION:This study showed that integrated traditional Chinese and Western medicine treatment can achieve better results in controlling blood pressure as well as other cardiovascular risk factors.The mechanism of controlling of blood pressure may be associated with the improvement of insulin sensitivity due to the Yiqi Huaju intervention. TRIAL REGISTRATION IDENTIFIER:ChiCTR-TRC-11001633. | Yi Chen De-yu Fu Yu Chen Yan-ming He Xiao-dong Fu Yan-qiu Xu Yi Liu Xiao-tao Feng Teng Zhang Wen-jian Wang | 2013 | Journal of Integrative Medicine2013，11，3： | 9 |
| 9 | Partial Discharge Measurement and Analysis in High Voltage IGBT Modules Under DC Voltage显示文摘Insulation performance of high voltage IGBT modules is one of the key attributes in power system applications.However,the existing standards of IGBT devices and research on the evaluation of insulation performance of high voltage IGBT modules are insufficient;for example,partial discharge resistance under DC voltage blocking condition is not considered.In this paper,a new test was proposed to allow the measurement of partial discharges in all the components of IGBT modules under DC voltage.The topology of the measuring circuit is arranged in the polarity discrimination way to exclude the interference,and the voltage and discharge current waveforms during the partial discharge process are measured by the wideband time domain measurement technique.According to the proposed test,the discharge phenomenon of the IGBT modules below the rating voltage were detected.A comprehensive waveform analysis on the voltage and discharge current was performed,and the influence of the applied voltage on the waveform parameters was obtained.The waveform parameters are influenced by the applied voltage and insulation structure,which enables the discrimination of the causes of the observed partial discharge in the IGBT module under DC voltage by the waveform analysis technique.Based on the waveform analysis technique,the types and causes of the observed partial discharges were discussed and inferred,and the correctness of the inference was further verified by observation.The proposed test and waveform analysis technique provide the possibility to evaluate and distinguish partial discharges in the high voltage IGBT module under DC voltage,which may be helpful to insulation performance evaluation and insulation defect diagnosis in high voltage IGBT module. | Pengyu Fu Zhibin Zhao Xiang Cui Teng Wen Haoyu Wang Xuebao Li Peng Zhang | 2018 | CSEE Journal of Power and Energy Systems2018，4，4： | 9 |
| 10 | Effects of Chinese herbal medicine Yiqi Huaju Qingli Formula in metabolic syndrome patients with microalbuminuria:a randomized placebo-controlled trial显示文摘BACKGROUND:Microalbuminuria(MAU) is a key component of metabolic syndrome(MetS) and is an early sign of diabetic nephropathy as well.Although routine Western medicine treatments are given to MetS patients to control high blood pressure,hyperglycemia and dyslipidemia,some patients still experience progressive renal lesions and it is necessary to modify and improve the treatment strategy for MetS patients. OBJECTIVE:To investigate the efficacy of Yiqi Huaju Qingli Herb Formula,a compound traditional Chinese herbal medicine,in MetS patients with MAU when it is combined with routine Western medicine treatment. DESIGN,SETTING,PARTICIPANTS AND INTERVENTIONS:Sixty patients with MetS were randomized into the Chinese herbal formula group(CHF,Yiqi Huaju Qingli formula treatment in combination with Western medicine) and control group(placebo in combination with Western medicine).All treatments were administered for 12 weeks. MAIN OUTCOME MEASURES:Urinary microalbumin(MA),urinary albumin-to-creatinine ratio (UACR),24-hour total urine protein(24-hTP),body mass index(BMI),waist circumference (WC),waist-to-hip ratio(WHR),fasting plasma glucose(FPG),2-hour postprandial plasma glucose(2-hPPG),glycosylated hemoglobin(HbA1c),homeostasis model assessment for insulin resistance(HOMA-IR),blood lipid profile and blood pressure were observed. RESULTS:Compared with the control group,CHF treatment significantly decreased BMI (P<0.05),WC(P<0.01) and WHR(P<0.01).Both groups had significant decreases in FPG, 2-hPPG,HbA1c,HOMA-IR,MA,and UACR,with CHF treatment showing better effects on these parameters compared with the control treatment(P<0.05).Both treatments significantly reduced the levels of total cholesterol,low-density lipoprotein cholesterol and triacylglycerol(TAG),and a greater reduction in TAG was observed with CHF treatment(P<0.05).The level of high-density lipoprotein cholesterol did not change in the control group after treatment(P>0.05),whereas it significantly increased with CHF treatment(P<0.01).Compared with before the treatment,significant decreases in systolic blood pressure,diastolic blood pressure and mean arterial blood pressure were observed in both groups(P<0.01).However,there was no significant difference between the two groups(P>0.05). CONCLUSION:Combined treatment of Yiqi Huaju Qingli Formula and Western medicine significantly alleviated MAU,which may correlate with the improvement of insulin sensitivity and glucose and lipid metabolism. TRIAL REGISTRATION IDENTIFIER:This trial was registered in the Chinese Clinical Trial Registry with the identifier ChiCTR-TRC-11001633. | Tian-zhan Wang Yu Chen Yan-ming He Xiao-dong Fu Yi Wang Yan-qiu Xu Hong-jie Yang Hong-li Xue Yi Liu Xiao-tao Feng Teng Zhang Wen-jian Wang | 2013 | Journal of Integrative Medicine2013，11，3： | 8 |
| 11 | Allelochemical p-hydroxybenzoic acid inhibits root growth via regulating ROS accumulation in cucumber(Cucumis sativus L.)显示文摘Allelopathy is prevalent in agricultural ecosystems and mediated by plant-derived secondary metabolites(allelochemicals).Allelochemicals are released by donor plants and affect the root growth and development of receptor plants.Allelopathy is responsible for the continuous cropping obstacles in cucumber(Cucumis sativus L.).p-Hydroxybenzoic acid(pHBA),an autotoxin from root exudates of cucumber,has been proposed to be an important allelopathic chemical.However,the molecular mechanism by which pHBA affect root growth and development in cucumber is unknown.Here,we found that pHBA treatment suppressed root growth of cucumber by reducing the meristem activity and cell length.This root growth defect is caused by reduced reactive oxygen species(ROS)accumulation in root tips.After pHBA treatment,the expression levels of several ROS-scavenging-related genes were increased,including peroxidase(POD),catalase(CAT)and metallothionein(MT).Moreover,exogenously application of salicylhydroxamate(SHAM),a peroxidase inhibitor,can partially restore the pHBA treatment induced root growth inhibition.Furthermore,we found that there is natural variation for the inhibitory effect of pHBA on root growth.We also showed that pHBA treatment could maintain higher level of ROS accumulated in the pHBA less sensitive cucumber than that in the pHBA-sensitive cucumber.These results suggest that pHBA inhibits root growth by reducing root tip ROS level in cucumber. | HUANG Cheng-zhen XU Lei Sun Jin-jing ZHANG Zhong-hua FU Mei-lan TENG Hui-ying YI Ke-ke | 2020 | Journal of Integrative Agriculture2020，19，2： | 8 |
| 12 | Tailored classification of portal vein thrombosis for liver transplantation:Focus on strategies for portal vein inflow reconstruction显示文摘Portal vein thrombosis(PVT)is currently not considered a contraindication for liver transplantation(LT),but diffuse or complicated PVT remains a major surgical challenge.Here,we review the prevalence,natural course and current grading systems of PVT and propose a tailored classification of PVT in the setting of LT.PVT in liver transplant recipients is classified into three types,corresponding to three portal reconstruction strategies:Anatomical,physiological and non-physiological.Type I PVT can be removed via low dissection of the portal vein(PV)or thrombectomy;porto-portal anastomosis is then performed with or without an interposed vascular graft.Physiological reconstruction used for type II PVT includes vascular interposition between mesenteric veins and PV,collateral-PV and splenic vein-PV anastomosis.Non-physiological reconstruction used for type III PVT includes cavoportal hemitransposition,renoportal anastomosis,portal vein arterialization and multivisceral transplantation.All portal reconstruction techniques were reviewed.This tailored classification system stratifies PVT patients by surgical complexity,risk of postoperative complications and long-term survival.We advocate using the tailored classification for PVT grading before LT,which will urge transplant surgeons to make a better preoperative planning and pay more attention to all potential strategies for portal reconstruction.Further verification in a large-sample cohort study is needed. | Fei Teng Ke-Yan Sun Zhi-Ren Fu | 2020 | World Journal of Gastroenterology2020，26，21： | 7 |
| 13 | Immunotherapy in liver transplantation for hepatocellular carcinoma:Pros and cons显示文摘Liver transplantation(LT)has emerged as a curative strategy for hepatocellular carcinoma(HCC),but contributes to a higher predisposition to HCC recurrence in the immunosuppression context,especially for tumors beyond the Milan criteria.Although immunotherapy has dramatically improved survival for immunocompetent patients and has become the standard of care for a variety of tumors,including HCC,it is mainly used outside the scope of organ transplantation owing to potentially fatal allograft rejection.Nevertheless,accumulative evidence has expanded the therapeutic paradigms of immunotherapy for HCC,from downstaging or bridging management in the pretransplant setting to the salvage or adjuvant strategy in the posttransplant setting.Generally,immunotherapy mainly includes immune checkpoint inhibitors(ICIs),adoptive cell transfer(ACT)and vaccine therapy.ICIs,followed by ACT,have been most investigated in LT,with some promising results.Because of the complex tumor microenvironment and immunoreactivity when immunosuppressants are combined with immunotherapy,it is difficult to reach formulations for immunosuppressant adjustment and the optimal selection of immunotherapy as well as patients.In addition,the absence of effective biomarkers for identifying rejection and tumor response is still an unresolved barrier to successful clinical immunotherapy applications for LT.In this review,we comprehensively summarize the available evidence of immunotherapy used in LT that is specific to HCC.Moreover,we discuss clinically concerning issues regarding the concurrent goals of graft protection and antitumor response. | Yi Luo Fei Teng Hong Fu Guo-Shan Ding | 2022 | World Journal of Gastrointestinal Oncology2022，14，1： | 7 |
| 14 | Two case reports and literature review for hepatic epithelioid angiomyolipoma: Pitfall of misdiagnosis显示文摘BACKGROUND Hepatic epithelioid angiomyolipoma(HEAML) is a rare liver disease and is easily misdiagnosed. Enhanced recognition of HEAML is beneficial to the differential diagnosis of rare liver diseases.CASE SUMMARY We presented two cases of HEAML in Changzheng Hospital, Naval Medical University, and then collected and analyzed all reports about HEAML recorded in PubMed, MEDLINE, China Science Periodical Database, and VIP database from January 2000 to March 2018. A total of 409 cases of HEAML in 97 reports were collected, with a ratio of men to women of 1:4.84 and an age range from 12 years to 80 years(median 44 years). Among the patients with clinical symptoms mentioned, 61.93%(205/331) were asymptomatic, 34.74%(115/331) showed upper or right upper quadrant abdomen discomfort, while a few of them showed abdominal mass, gastrointestinal symptoms, low fever, or weight loss. The misdiagnosis rate of HEAML was as high as 40.34%(165/409) due to its nonspecific imaging findings. Most of the tumors were solitary and round in morphology, with clear boundaries. Ultrasound scan indicated low echo with internal nonuniformity and rich blood supply in most cases. Computer tomography/magnetic resonance imaging enhanced scan showed varied characteristics. The ratio of fast wash-in and fast wash-out, fast wash-in and slow wash-out, and delayed enhancement was roughly 4:5:1. A definite diagnosis of HEAML depended on the pathological findings of the epithelioid cells in lesions and the expression of human melanoma black 45, smooth muscle actin,melanoma antigen, and actin by immunohistochemical staining. HEAML had a relatively low malignant rate of 3.91%. However, surgical resection was the main treatment for HEAML, due to the difficulty diagnosing before operation.CONCLUSION HEAML is a rare and easily misdiagnosed disease, and it should be diagnosed carefully, taking into account clinical course, imaging, pathological,and immunohistochemical findings. | Jia-Xi Mao Fei Teng Cong Liu Hang Yuan Ke-Yan Sun You Zou Jia-Yong Dong Jun-Song Ji Jun-Feng Dong Hong Fu Guo-Shan Ding Wen-Yuan Guo | 2019 | World Journal of Clinical Cases2019，7，8： | 6 |
| 15 | Dissipation of polycyclic aromatic hydrocarbons and microbial activity in a field soil planted with perennial ryegrass显示文摘 | Dengqiang FU Ying TENG Yuanyuan SHEN Mingming SUN Chen TU Yongming LUO Zhengao LI Peter CHRISTIE | 2012 | Frontiers of Environmental Science & Engineering2012，6，3： | 6 |
| 16 | Serum Gamma-glutamyl Transferase Levels Predict Functional Outcomes after Aneurysmal Subarachnoid Hemorrhage显示文摘Objective We aim to explore the potential association between serum gamma-glutamyl transferase levels and functional outcome after aneurysmal subarachnoid hemorrhage in a Chinese population. Methods A total of 386 aneurysmal subarachnoid hemorrhage patients were included in the study from September 2007 to February 2015. Baseline serum gamma-glutamyl transferase levels and 6-month follow-up functional outcomes were determined. A poor outcome was defined as a modified ranking scale score of ≥ 3. The multivariable logistic model was used to analyze the relationship between serum gamma-glutamyl transferase and clinical outcomes after aneurysmal subarachnoid hemorrhage. Results The adjusted poor outcome rates of patients with gamma-glutamyl transferase levels of < 30 U/L, 30-50 U/L and ≥ 50 U/L were 16.7%, 19.6%, and 34.4%, respectively(P < 0.01). The age-sex and multivariable adjusted odds ratios(95% confidence intervals) of poor prognosis comparing the top group(≥ 50 U/L) with the lowest group(< 30 U/L) were 5.76(2.74-12.13), 6.64(2.05-21.52), and 6.36(1.92-21.02). A significant linear trend existed between gamma-glutamyl transferase level and aneurysmal subarachnoid hemorrhage prognosis. This association was also observed among nondrinkers. Conclusion Patients with higher gamma-glutamyl transferase levels were more likely to have a poor prognosis. Serum gamma-glutamyl transferase can be considered to be an independent predictor of functional outcomes after aneurysmal subarachnoid hemorrhage. | XU Tian WANG Wei ZHAI Lin ZHANG Yun Feng ZHOU Hong Zhi WU Xin Min LI Ai Hong XIE Li Li NING Xiao Jin JI Yu Teng WANG Hong Mei KE Kai Fu | 2017 | Biomedical and Environmental Sciences2017，30，3： | 5 |
| 17 | Approaching the minimum lattice thermal conductivity of p-type SnTe thermoelectric materials by Sb and Mg alloying显示文摘SnTe, as the nontoxic analogue to high-performance PbTe thermoelectric material, has captured the worldwide interest recently. Many triumphant instances focus on the strategies of band convergence, resonant doping, and nano-precipitates phonon scattering. Herein, the p-type SnTe-based materials Sn0.85-xSb0.15MgxTe (x=0-0.10) are fabricated and a combined effect of Sb and Mg is investigated. Sb alloying tunes the hole carrier concentration of SnTe and decreases the lattice thermal conductivity. Mg alloying leads to a nearly hundredfold rise of disorder parameter due to the large mass and strain fluctuations, and as a consequence the lattice thermal conductivity decreases further down to ~0.64Wm^-1K^-1 at 773K, close to the theoretical minimum of the lattice thermal conductivity (~0.50Wm^-1K^-1) of SnTe. In conjunction with the enhancement of the Seebeck coefficient caused by band convergence due to Mg alloying, the maximum zTmax reaches ~1.02 and the device zTdevice of ~0.50 at 773K for Sn0.79Sb0.15Mg0.06Te, suggesting this SnTe-based composition has a promising potential in intermediate temperature thermoelectric applications. | Tiezheng Fu Jiazhan Xin Tiejun Zhu Jiajun Shen Teng Fang Xinbing Zhao | 2019 | Science Bulletin2019，64，14： | 5 |
| 18 | Accelerated flow softening and dynamic transformation of Ti-6Al-4V alloy in two-phase region during hot deformation via coarsening αgrain显示文摘The flow softening is an important phenomenon during hot deformation of metallic materials.In the present work,a more evident flow softening of Ti-6 Al-4 V alloy when deformed in two-phase region was observed in coarser a grain sample,which was attributed to an accelerated dynamic transformation from harder α phase into β phases.Notably,full β microstructure was observed in coarse grain samples at strain of 1.2,while retained a phase was observed in fine a grain specimens.In the views of thermodynamics and crystallographic analysis,the in-depth mechanisms of dynamic transformation were further investigated. | Xiankun Ji Baoqi Guo Fulin Jiang Hong Yu Dingfa Fu Jie Teng Hui Zhang John J.Jonas | 2020 | Journal of Materials Science & Technology2020，36，1： | 5 |
| 19 | The spatial variation of soil bacterial community assembly processes affects the accuracy of source tracking in ten major Chinese cities显示文摘Urban soils harbor billions of bacterial cells and millions of species.However,the distribution patterns and assembly processes of bacterial communities remain largely uncharacterized in urban soils.It is also unknown if we can use the bacteria to track soil sources to certain cities and districts.Here,Illumina MiSeq sequencing was used to survey soil bacterial communities from 529 random plots spanning 61 districts and 10 major cities in China.Over a 3,000 km range,community similarity declined with increasing geographic distance(Mantel r=0.62),and community composition was clustered by city(R^(2)=0.50).Within cities(<100 km),the aforementioned biogeographic patterns were weakened.Process analysis showed that homogenizing dispersal and dispersal limitation dominated soil bacterial assembly at small and large spatial scales,respectively.Accordingly,the probabilities of accurately tracking random soil sources to certain cities and districts were 90.0% and 66.7%,respectively.When the tested samples originated from cities that were more than 1,265 km apart,the soil sources could be identified with nearly 100% accuracy.Overall,this study demonstrates the strong distance-decay relationship and the clear geographic zoning of urban soil bacterial communities among cities.The varied importance of different community assembly processes at multiple spatial scales strongly affects the accuracy of microbial source tracking. | Teng Yang Yu Shi Jun Zhu Chang Zhao Jianmei Wang Zhiyong Liu Xiao Fu Xu Liu Jiangwei Yan Meiqing Yuan Haiyan Chu | 2021 | Science China(Life Sciences)2021，64，9： | 4 |
| 20 | Soil detachment and transport under the combined action of rainfall and runoff energy on shallow overland flow显示文摘Rainfall and runoff energy results in soil erosion. This paper presents new the concepts of rainfall and runoff energy and analyzes the relationship of rainfall energy and runoff energy with sediment transport based on the conversion theory of kinetic and potential energy using artificial rainfall and mechanical calculation. The results show that the ratio of sediment detachment in sloping fallow overland flow increases with the slope gradient,rainfall energy and runoff energy, while the sediment detachment ratio under raindrop impact are significantly higher than those under no raindrop impact. The sediment concentration increases with the slope gradient and rainfall energy; when the slope gradient and rainfall energy are constant, the sediment concentration decreases as the runoff energy increases. Rainfall disturbance coefficients have a logarithmic correlation with the rate of rainfall energy and runoff energy. On the same slope gradient,when the rainfall energy is constant, the disturbance coefficient decreases as the runoff energy increases,while when the runoff energy is constant, the disturbance coefficient increases as the rainfall energyincreases. Rainfall energy results in sediment detachment, and runoff energy is the transportation for erosion sediment. This showed that rainfall energy and runoff energy are important in the sediment detachment and transportation of shallow overland flow. | LI Guang-lu ZHENG Teng-hui FU Yu LI Bai-qiao ZHANG Teng | 2017 | Journal of Mountain Science2017，14，7： | 4 |
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