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| 1 | A novel class of tRNA-derived small RNAs extremely en- riched in mature mouse sperm显示文摘 | HongyingPeng JunchaoShi YingZhang HeZhang ShangyingLiao WeiLi LiLei ChunshengHan LinaNing YujingCao QiZhou QiChen EnkuiDuan | 2012 | Cell Research2012,22,11: | 20 |
| 2 | Evaluation of the viability and energy metabolism of canine pancreas graft subjected to significant warm ischemia damage during preservation by UW solution cold storage method显示文摘AIM: To evaluate the viability and energy metabolism of long warm ischemically damaged pancreas during preservation by the UW solution cold storage method. METHODS: The pancreas grafts subjected to 30-120 min warm ischemia were preserved by the UW solution cold storage method for 24 h. The tissue concentrations of adenine nudeotides (AN) and adenosine triphosphate (ATP) and total adenine nucleotides (TAN) were determined by using high performance liquid chromatography (HPLC) and the viability of the pancreas gra~ was tested in the canine model of segmental pancreas autotransplantation. RESULTS: The functional success rates of pancreas grafts of groups after 30 min, 60 min, 90 min, 120 min of warm ischemia were 100%, 100%, 67.7%, 0%, respectively. There was an excellent correlation between the posttransplant viability and tissue concentration of ATP and TAN at the end of preservation. CONCLUSION: The UW solution cold storage method was effective for functional recovery of the pancreas suffering 60-min warm ischemia. The tissue concentration of ATP and TAN at the end of 24 h preservation by the UW solution cold storage method would predict the posttransplant outcome of pancreas gra~ subjected to significant warm ischemia. | Chun-HuiYuan Gui-ChenLi HeZhang YingCheng NingZhao Yong-FengLiu | 2004 | World Journal of Gastroenterology2004,10,12: | 3 |
| 3 | Preparation and thermoelectric properties of Cu1.8S/CuSbS2 composites显示文摘Chalcostibite(CuSbS2)is composed of earth-abundant elements and has a proper band gap(Eg=1.05 eV)as a thermoelectric(TE)material.Herein,we report the TE properties in the CuSbS2 based composites with a mole ratio of(1–x)CuSbS2–x Cu1.8S(x=0,0.1,0.2,0.3),which were prepared by mechanical alloying(MA)combined with spark plasma sintering(SPS).X-ray diffraction(XRD)and back-scattered electron image(BSE)results indicate that a single phase of CuSbS2 is synthesized at x=0 and the samples consist of CuSbS2,Cu3SbS4,and Cu12Sb4S13 at 0.1≤x≤0.3.The correlation between the phase structure,microstructure,and TE transport properties of the bulk samples is established.The electrical conductivity increases from 0.14 to 50.66 S·cm–1 at 723 K and at0≤x≤0.03,while the Seebeck coefficient holds an appropriate value of 190.51μV·K–1.The highest ZT value of 0.17 is obtained at 723 K and at x=0.3 owing to the combination of a high PF183μW·m–1·K–2 and a lowκ0.8 W·m–1·K–1. | Chunmei TANG Doudou LIANG Hezhang LI Kun LUO Boping ZHANG | 2019 | Journal of Advanced Ceramics2019,8,2: | 2 |
| 4 | Serum lipid levels and the risk of biliary tract cancers and biliary stones: A population‐based study in China显示文摘 | GabriellaAndreotti JinboChen Yu‐TangGao AsifRashid Shih‐ChenChang Ming‐ChangShen Bing‐ShengWang Tian‐QuanHan Bai‐HeZhang Kim N.Danforth Michelle D.Althuis Ann W.Hsing | 2008 | Int J Cancer2008,,10: | 1 |
| 5 | Effect of Ni content on high power laser ablation behavior of coatings sprayed by Ni covering graphite/SiO2 powders显示文摘Faced with the challenge of high energy ablation problems, especially for laser ablation, effective energy dissipation protective materials fabricate by efficient preparation method is a feasible solution. The Ni-graphite/Si O2 coatings with different Ni content were prepared by plasma spraying method with optimized plasma spraying parameters. All coatings are pure without oxidation and dense. Their ablation behaviors were investigated by high power continuous wave laser. The results indicate that the Ni-graphite/Si O2 coating with appropriate Ni content could realize the purpose of energy consumption by endothermal reaction of graphite/Si O2 and reflection improvement. High Ni content will block the occurrence of endothermal reaction of graphite/Si O2 and increase the heat diffusion to interior part of coating, which can make the ablation situation of coating more serious. | Wenzhi Li Lihong Gao Zhuang Ma Yanbo Liu Fuchi Wang Jiawei Wang Lijun Wang Hezhang Li | 2020 | Journal of Materials Science & Technology2020,47,12: | 1 |
| 6 | 对话玛雅密码与2012年末世说显示文摘郑筱筠:英国科学家霍金在《时间简史》中说,“从爱因斯坦的广义相对论可以预言,时空在大爆炸奇点处开始,并在大挤压的奇点处结束”。现在我们不必去担心时空的挤压奇点问题。但在今天的流行文化中,世界末日依然是一个热门话题。这一话题甚至使世界各地的一些人有了不同程度的恐慌,尤其是随着2012年12月22日的日益临近,似乎世界进入了一个倒计时的阶段。 | Hezhang 王卡 BertholdRiese 郑筱筠 | 2012 | 世界宗教文化2012,,6: | 1 |
| 7 | Deciphering the leakage conduction mechanism of BiFeO_(3)–BaTiO_(3)lead-free piezoelectric ceramics显示文摘BiFeO_(3)–BaTiO_(3)(BF–BT)based piezoelectric ceramics are a kind of high-temperature lead-free piezoelectric ceramics with great development prospects due to their high Curie temperature(TC)and excellent electrical properties.However,large leakage current limits their performance improvement and practical applications.In this work,direct current(DC)test,alternating current(AC)impedance,and Hall tests were used to investigate conduction mechanisms of 0.75BiFeO_(3)–0.25BaTiO_(3)ceramics over a wide temperature range.In the range of room temperature(RT)−150℃,ohmic conduction plays a predominant effect,and the main carriers are p-type holes with the activation energy(Ea)of 0.51 eV.When T>200℃,the Ea value calculated from the AC impedance and Hall data is 1.03 eV with oxygen vacancies as a cause of high conductivity.The diffusion behavior of thermally activated oxygen vacancies is affected by crystal symmetry,oxygen vacancy concentration,and distribution,dominating internal conduction mechanism.Deciphering the conduction mechanisms over the three temperature ranges would pave the way for further improving the insulation and electrical properties of BiFeO_(3)–BaTiO_(3)ceramics. | Mengping Xue Yucheng Tang Zhihang Shan Yijin Hao Xiaoxiao Zhou Xiaoqi Gao Hezhang Li Jun Pei Boping Zhang | 2023 | Journal of Advanced Ceramics2023,12,10: | 0 |
| 8 | A sound velocity method for determining isobaric specific heat capacity显示文摘Isobaric specific heat capacity(Cp)is an important parameter not only in physics but also for most materials.Its accurate measurement is particularly critical for performance evaluation of thermoelectric materials,but the experiments by differential scanning calorimetry(DSC)often lead to large uncertainties in the measurements,especially at elevated temperatures.In this study,we propose a simple method to determine Cp by measuring the sound velocity(υ)based on lattice vibration and expansion theory.The relative standard error of theυis smaller than 1%,showing good accuracy and repeatability.The calculated Cp at elevated temperature(>300 K)increases slightly with increasing temperature due to the lattice expansion,which is more reasonable than the Dulong–Petit value. | Jun Pei Hezhang Li Hua-Lu Zhuang Jinfeng Dong Bowen Cai Haihua Hu Jing-Wei Li Yilin Jiang Bin Su Li-Dong Zhao Jing-Feng Li | 2022 | InfoMat2022,4,12: | 0 |
| 9 | Climatic Regionalization of Orange Osmanthus in Pucheng County Based on GIS显示文摘[Objectives]This study was conducted to scientifically plan orange osmanthus planting in Pucheng County to promote the development of agricultural economy.[Methods]Two factors,the total number of days with daily average temperature≥15℃from March to August and the total number of days with daily average temperature≥20℃in September were determined as the regionalization index factors using the weather data and geographic information data of Pucheng County,according to the 80%guarantee rate principle,the mean square error method and the actual growth law of orange osmanthus.Then,according to the weighted stack method,comprehensively considering the on-site inspection results and expert opinions,the suitability of orange osmanthus planting layout in Pucheng County was evaluated,and the GIS spatial interpolation technology was applied to complete the refined agroclimatic regionalization.[Results]The growth of Pucheng orange osmanthus has a great relationship with the thermal conditions,and it is clear that the suitable,sub-suitable and unsuitable areas for orange osmanthus planting in Pucheng County have certain applicability and maneuverability.[Conclusions]This study will play a scientific guiding role in the industrialization and development of orange osmanthus planting in Pucheng County. | Da YING Hezhang CAI Junliang ZHENG Gang TANG Dan LI 无 | 2020 | Agricultural Biotechnology2020,9,6: | 0 |
| 10 | Enhanced thermoelectric performance in MnTe due to doping and insitu nanocompositing effects by Ag2S addition显示文摘Extremely low lattice thermal conductivity is always the pursuit of thermoelectric materials research.In this work,we reported an exceptional effect of Ag2S addition in MnTe,an emerging promising midtemperature thermoelectric material,to enable the realization of minimum lattice thermal conductivity,namely-0.4 Wm^(-1) K^(-1).Such a low lattice thermal conductivity is guaranteed by the incorporation of in-situ formed Ag rich phase(Ag2Te)with ultralow lattice thermal conductivity and further scattering of phonons from the partial doping effects induced point defects and boundaries between various phases.Apart from the dramatically decreased lattice thermal conductivity,the partial doping of Ag and S simultaneously enhance the electrical conductivity,further contributing to enhanced thermoelectric performance.Meanwhile,an inverse sign of Seebeck and Hall coefficient was observed and rationalized by the influence of highly electron-conductive Ag_(2)Te phase.Thanks to the synergetic modulation of electrical and thermal transport properties by in-situ formed composite,a high ZT value of 1.1 was achieved in MnTe based thermoelectric materials,which also demonstrates the importance of compositing approaches to design state-of-the-art thermoelectric materials. | Jinfeng Dong Jun Pei Kei Hayashi Wataru Saito Hezhang Li Bowen Cai Yuzuru Miyazaki Jing-Feng Li | 2021 | Journal of Materiomics2021,7,3: | 0 |
| 11 | Enhanced piezoelectricity in 0.7BiFeO_(3)-0.3BaTiO_(3)lead-free ceramics:Distinct effect of poling engineering显示文摘BiFeO_(3)-BaTiO_(3) based ceramics are considered to be the most promising lead-free piezoelectric ceramics due to their large piezoelectric response and high Curie temperature.Since the piezoelectric response of piezoelectric ceramics just appears after poling engineering,in this work,the domain evolution and microscopic piezoresponse were observed in-situ using piezoresponse force microscopy(PFM)and switching spectroscopy piezoresponse force microscopy(SS-PFM),which can effectively study the local switching characteristics of ferroelectric materials especially at the nanoscale.The new domain nucleation preferentially forms at the boundary of the relative polarization region and expands laterally with the increase of bias voltage and temperature.The maximum piezoresponse(Rs),remnant piezoresponse(Rrem),maximum displacement(Dmax)and negative displacement(Dneg)at 45 V and 120C reach 122,69,127 pm and 75 pm,respectively.Due to the distinct effect of poling engineering in full domain switching,the corresponding d33 at 50 kV/cm and 120C reaches a maximum of 205 pC/N,which is nearly twice as high as that at room temperature.Studying the evolution of ferroelectric domains in the poling engineering of BiFeO_(3)-BaTiO_(3)ceramics provides an insight into the relationship between domain structure and piezoelectric response,which has implications for other piezoelectric ceramics as well. | Aizhen Song Yu-Cheng Tang Hezhang Li Ning Wang Lei Zhao Jun Pei Bo-Ping Zhang | 2023 | Journal of Materiomics2023,9,5: | 0 |