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| 1 | H7N9 virulent mutants detected in chickens in China pose an increased threat to humans显示文摘 | Jianzhong Shi Guohua Deng Huihui Kong Chunyang Gu Shujie Ma Xin Yin Xianying Zeng Pengfei Cui Yan Chen Huanliang Yang Xiaopeng Wan Xiurong Wang Liling Liu Pucheng Chen Yongping Jiang Jinxiong Liu Yuntao Guan Yasuo Suzuki Mei Li Zhiyuan Qu Lizheng Guan Jinkai Zang Wenli Gu Shuyu Han Yangming Song Yuzhen Hu Zeng Wang Linlin Gu Wenyu Yang Libin Liang Hongmei Bao Guobin Tian Yanbing Li Chuanling Qiao Li Jiang Chengjun Li Zhigao Bu Hualan Chen | 2017 | Cell Research2017，27，12： | 70 |
| 2 | A comparative study of Mn/CeO_2,Mn/ZrO_2 and Mn/Ce-ZrO_2 for low temperature selective catalytic reduction of NO with NH_3 in the presence of SO_2 and H_2O显示文摘Ce-ZrO2 is a widely used three-way catalyst support.Because of the large surface area and excellent redox quality,Ce-ZrO2 may have potential application in selective catalytic reduction(SCR) systems.In the present work,Ce-ZrO2 was introduced into a low-temperature SCR system and CeO2 and ZrO2 supports were also introduced to make a contrastive study.Mn/CeO2,Mn/ZrO2 and Mn/Ce-ZrO2 were prepared by impregnating these supports with Mn(NO3)2 solution,and have been characterized by N2-BET,XRD,TPR,TPD,XPS,FT-IR and TG.The activity and resistance to SO2 and H2O of the catalysts were investigated.Mn/Ce-ZrO2 and Mn/CeO2 were proved to have better low-temperature activities than Mn/ZrO2,and yielded 98.6% and 96.8% NO conversion at 180°C,respectively.This is mainly because Mn/Ce-ZrO2 and Mn/CeO2 had higher dispersion of manganese oxides,better redox properties and more weakly adsorbed oxygen species than Mn/ZrO2.In addition,Mn/Ce-ZrO2 showed a good resistance to SO2 and H2O and presented 87.1% NO conversion,even under SO2 and H2O treatment for 6 hours,and the activity of Mn/Ce-ZrO2 was almost restored to its original level after cutting off the injection of SO2 and H2O.This was due to the weak water absorption and weak sulfation process on the surface of the catalyst. | Boxiong Shen Xiaopeng Zhang Hongqing Ma Yan Yao Ting Liu | 2013 | Journal of Environmental Sciences2013，25，4： | 30 |
| 3 | PandaX: a liquid xenon dark matter experiment at CJPL显示文摘PandaX is a large liquid-xenon detector experiment usable for direct dark-matter detection and 136Xe double-beta decay search.The central vessel was designed to accommodate a staged target volume increase from initially 120 kg(stage I)to 0.5 t(stage II)and eventually to a multi-ton scale.The experiment is located in the Jinping Deep-Underground Laboratory in Sichuan,China.The detector operates in dual-phase mode,allowing detection of both prompt scintillation,and ionization charge through proportional scintillation.In this paper a detailed description of the stage I detector design and performance as well as results established during the commissioning phase are presented. | CAO XiGuang CHEN Xun CHEN YunHua CUI XiangYi FANG DeQing FU ChangBo GIBONI Karl L. GONG HaoWei GUO GuoDong HE Ming HU Jie HUANG XingTao JI XiangDong JU YongLin LI ShaoLi LIN Qing LIU HuaXuan LIU JiangLai LIU Xiang LORENZON Wolfgang MA YuGang MAO YaJun NI KaiXuan PUSHKIN Kirill REN XiangXiang SCHUBNELL Michael SHEN ManBing SHI YuJie STEPHENSON Scott TAN AnDi TARLé Greg WANG HongWei WANG JiMing WANG Meng WANG XuMing WANG Zhou WEI YueHuan WU ShiYong XIAO MengJiao XIAO Xiang XIE PengWei YE Tao YOU YingHui ZEN XiongHui ZHANG Hua ZHANG Tao ZHAO HaiYing ZHAO Li ZHOU XiaoPeng ZHU ZhongHua | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，8： | 9 |
| 4 | Synthesis of growth-type polycrystalline diamond compact (PDC) using the solvent Fe_(55)Ni_(29)Co_(16) alloy under HPHT显示文摘A growth-type polycrystalline diamond compact (PDC) was synthesized under high temperature and high pressure (HPHT). The infiltration technique was used with an Fe55Ni29Co16 (KOV) alloy as the sintering solvent. The morphology and weight ratio of the PDC were investigated through scanning electron microscopy (SEM) and electron dispersion spectroscopy (EDS). Note that the KOV alloy evenly infiltrated throughout the polycrystalline diamond (PCD) layer and WC-Co substrate in a short sintering time due to its low viscosity and high soakage capability. A transition layer confirmed the presence of the MxC phase near the interface of the PDC, which can make the diamond layer and WC-Co substrate combine as a complex material. X-ray diffraction (XRD) performed on the PCD layer confirmed the presence of cubic diamond, WC, cubic CoCx, the high temperature cubic phase of α-Co, the alloy phase of FeNix, and no graphite phase. Besides, a surface residual stress of the PCD layer, measured with reasonable accuracy using micro-Raman spectroscopy, is found to be a homogeneous compressive stress with an average value of 0.16 GPa, much lower than that of the powders-mixing method. | JIA HongSheng JIA XiaoPeng MA HongAn LI HaiBo | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，8： | 9 |
| 5 | Analgesic action of suspended moxibustion in rats with chronic visceral hyperalgesia correlates with enkephalins in the spinal cord显示文摘Rats that modeled chronic visceral hyperalgesia received suspended moxibustion at bilateral Tianshu (ST25) and Shangjuxu (ST37) once daily over a period of 7 days. Results show that suspended moxibustion significantly depressed abdominal withdrawal reflex scores and increased enkephalin concentration in the spinal cord. The experimental findings suggest that spinal enkephalins contributed to the analgesic effect of suspended moxibustion in rats with chronic visceral hyperalgesia. | Tao Yi Li Qi Huangan Wu Xiaopeng Ma Huirong Liu Xiaomei Wang | 2012 | Neural Regeneration Research2012，7，3： | 9 |
| 6 | Effect of additive boron on type-Ib gem diamond single crystals synthesized under HPHT显示文摘The boron-doped type-Ib gem diamond crystals were synthesized successfully by adding amorphous boron into a system of graphite and Kovar catalyst under high pressure and high temperature (HPHT).The effect of additive boron on type-Ib gem diamond was extensively studied including the growth characteristic,morphology and nitrogen concentration.The synthesized boron-doped type-Ib gem diamond crystals were characterized by optical microscope (OM),scanning electron microscope (SEM) and infrared spectrometer (IR).The results show that the growth region of the {111} face becomes wide,whereas the growth region of the {100} face becomes narrow and nearly disappears as increasing additive boron in the sample.The crystal will be opaque and imperfect,and the concentration of nitrogen will be decreased when the boron atoms are incorporated into gem diamond lattice.These techniques are very important and will be widely applied. | MA LiQiu MA HongAn XIAO HongYu LI ShangSheng LI Yong JIA XiaoPeng | 2010 | Chinese Science Bulletin2010，55，8： | 8 |
| 7 | HPHT preparation and Micro-Raman characterization of polycrystalline diamond compact with low residual stress显示文摘High quality grown polycrystalline diamond compact (PDC) with low residual stress was prepared using the infiltration method with nickel based alloys as the solvent under high temperature and high pressure (HPHT). Scanning electron microscopy (SEM) was used to observe the micro morphology of the diamond layer and the diamond/WC substrate interface. It was found that dense and interlaced microstructure with diamond-diamond (D-D) direct bonding formed in the diamond layer of PDC. Micro-Raman spectroscopy was used to measure the Raman shift of diamonds in the polycrystalline diamond (PCD) layer and the residual stress was calculated based on the Raman shift of diamonds. Experimental results show that the residual stress of PCD layer is compressive stress, and the range of the residual stress is from 0.075 to 0.250 GPa in the whole PCD layer, much lower than that of other reports (up to 1.400 GPa). Moreover, the distribution of the residual stress from the diamond surface layer to the inner cross-section is homogeneous. | JIA HongSheng, MA HongAn, GUO Wei & JIA XiaoPeng* National Laboratory of Superhard Materials, Jilin University, Changchun 130012, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，8： | 7 |
| 8 | Active dry yeast supplementation improves the growth performance,rumen fermentation, and immune response of weaned beef calves显示文摘The objective of this experiment was to investigate the potential benefits of active dry yeast(ADY)on the growth performance,rumen fermentation,nutrient digestibility,and serum parameters of weaned beef calves.Thirty Simmental crossbred male calves(body weight=86.47±4.41 kg and 70±4 d of age)were randomly divided into 2 groups:control(CON)(fed basal ration)and ADY(fed basal ration and 5 g/d ADY per calf).The dietary concentrate-to-roughage ratio was 35:65.All the calves were regularly provided rations 3 times a day at 07:00,13:00,and 19:00 and had free access to wate r.The experiment lasted for 60 d.The average daily gain of ADY group was higher(P=0.007)than that of the CON group,and the ratio of feed intake to average daily gain in the ADY group was reduced(P=0.022)as compared to the CON group.The concentration of ruminal ammonia-N was higher(P=0.023)in the CON group than that in the ADY group,but an opposite trend of microbial protein was found between the 2 groups.Also,the ruminal concentrations of propionate and butyrate were higher(P<0.05)in the ADY group than those in the CON group.Calves fed ADY exhibited higher(P<0.05)crude protein and neutral detergent fiber digestibility.Supplementation of ADY increased(P<0.05)the contents of glucose,glutathione peroxidase,superoxide dismutase,immunoglobulin A,immunoglobulin M,and interleukin 10 in the serum of calves,but an opposite trend was observed in malondialdehyde,interleukin 1 beta,and tumor necrosis factor alpha contents between the 2 groups.In conclusion,dietary supplementation with ADY could improve the growth performance,rumen fermentation,nutrient digestibility,antioxidant ability,and immune response of weaned beef calves. | Jian Ma Cheng Wang Zhisheng Wang Guang Cao Rui Hu Xueying Wang Huawei Zou Kun Kang Quanhui Peng Bai Xue Lizhi Wang Yueming Zhu Xiaopeng Zhu | 2021 | Animal Nutrition2021，，4： | 7 |
| 9 | Study on growth of coarse grains of diamond with high quality under HPHT显示文摘The growth of coarse grains of diamond was observed with graphite as carbon source and Fe80Ni20 alloy powder as catalyst at HPHT in a China-type SPD 6×1670T cubic high-pressure apparatus with highly exact control system. To synthesize coarse grains of diamond crystal with high quality,ad-vanced indirect heat assembly,powder catalyst technology and catalyst with optimal granularity were used. Especially the nucleation of diamond and the growth rate were strictly controlled by the opti-mized synthesis craft. At last,diamond crystals (about 0.85 mm) in the perfect hex-octahedron shape were successfully synthesized at ~5.4 GPa and ~1360℃ in 60 min. The characteristic of crystal growth with powder catalyst technology under HPHT was discussed. The results and techniques might be useful for production of coarse grains of diamond. | ZHOU ShengGuo ZANG ChuanYi MA HongAn LI XiaoLei ZHANG HeMin JIA XiaoPeng | 2009 | Chinese Science Bulletin2009，54，1： | 6 |
| 10 | Combination of anti-PD-1 antibody with P-GEMOX as a potentially effective immunochemotherapy for advanced natural killer/T cell lymphoma显示文摘Advanced natural killer/T cell lymphoma(NKTL)has demonstrated poor prognosis with currently available therapies.Here,we report the efficacy of anti-programmed death 1(PD-1)antibody with the P-GEMOX(pegaspargase,gemcitabine,and oxaliplatin)regimen in advanced NKTL.Nine patients underwent six 21-day cycles of anti-PD-1 antibody(day 1),pegaspargase 2000 U/m^(2)(day 1),gemcitabine 1 g/m^(2)(days 1 and 8)and oxaliplatin 130 mg/m^(2)(day 1),followed by anti-PD-1 antibody maintenance every 3 weeks.Programmed death-ligand 1(PD-L1)expression and genetic alterations were determined in paraffin-embedded pretreatment tissue samples using immunohistochemistry and next-generation sequencing(NGS)analysis.Responses were assessed using 18F-fluorodeoxyglucose positron emission tomography(18FDG-PET)and computed tomography or magnetic resonance imaging.Eight patients exhibited significant responses,comprising of seven complete remissions and one partial remission(overall response rate:88.9%).After a median follow-up of 10.6 months,6/9 patients(66.7%)remained in complete remission.The most common grade 3/4 adverse events were anemia(33.3%),neutropenia(33.3%),and thrombocytopenia(33.3%);all of which were manageable and resolved.Immunochemotherapy produced a high response rate in patients with positive PD-L1 expression(5/6,83.3%).NGS analysis suggested that STAT3/JAK3/PD-L1 alterations and ARID1A mutation were associated with immunochemotherapy efficacy.Mutation in DDX3X and alteration in epigenetic modifiers of KMT2D,TET2,and BCORL1 might indicate a poor response to immunochemotherapy.In conclusion,the anti-PD-1 antibody plus P-GEMOX regimen demonstrated promising efficacy in advanced NKTL.PD-L1 expression combined with specific genetic alterations could be used as potential biomarkers to predict therapeutic responses to immunochemotherapy. | Jun Cai Panpan Liu Huiqiang Huang Yajun Li Shuyun Ma Hui Zhou Xiaopeng Tian Yuchen Zhang Yan Gao Yi Xia Xuanye Zhang Hang Yang Lirong Li Qingqing Cai | 2020 | Signal Transduction and Targeted Therapy2020，5，1： | 6 |
| 11 | Efficacy of herb-partitioned moxibustion at Qihai(CV 6) and bilateral Tianshu(ST 25) on colonic damage and the TLR4/NF-κB signaling pathway in rats with Crohn's disease显示文摘OBJECTIVE: To observe the effect of stimulating Qihai(CV 6) and bilateral Tianshu(ST 25) with herb-partitioned moxibustion(HPM) in rats with Crohn's disease(CD), and to investigate the possible anti-inflammatory mechanism of HPM.METHODS: Forty rats were randomly divided into four groups(n = 10 rats per group): normal control(NC), model control(MC), mesalamine(MES), and HPM. The CD rat model was established in the MC,MES, and HPM groups by administering a mixture of trinitrobenzenesulfonic acid and alcohol via enema. The HPM group received HPM on Qihai(CV 6)and bilateral Tianshu(ST 25), while the MES group received intragastric mesalamine. Colonic histomorphological scores, and serum concentrations of tumor necrosis factor α(TNF-α) and interleukin 1β(IL-1β) were assessed to evaluate the effects of HPM on colonic reparation and anti-inflammation.The expressions of Toll-like receptor 4(TLR-4), nuclear factor κB inhibitor α(IκB-α), IκB kinase α/β(IKKα/β), and NF-κB p65 were further analyzed to investigate the regulatory effects of the interventions on the TLR4/NF-κB pathway.RESULTS: CD rats showed inflammatory colonic damage and increased serum concentrations of TNF-α and IL-1β. The expressions of TLR4, IKKα/β,and NF-κB p65 in the colons of CD rats were significantly increased compared with the NC group,while the expression of IκBα(a key negative regulator of NF-κB p65) was decreased. HPM significantly mitigated colonic damage and reduced the serum concentrations of TNF-α and IL-1β. HPM downregulated the expressions of TLR4, IKKα/β, and NF-κB p65 in the colon, and upregulated the expression of IκBα. The effects of HPM in CD rats were similar to those of mesalamine.CONCLUSION: HPM alleviates colonic inflammation in CD rats. This may be achieved through regulation of TLR4, which induces NF-κB signal transduction. | Zhang Dan Wei Kai Ma Xiaopeng Wu Huangan Hong Jue Zhang Cuihong Wu Lingxiang Yan Huang Liu Jie Zhu Yi Yang Ling | 2018 | Journal of Traditional Chinese Medicine2018，38，2： | 6 |
| 12 | Dark matter direct search sensitivity of the PandaX-4T experiment显示文摘The Panda X-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Underground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1-10 keV electron equivalent energy, the total electron recoil background is found to be 4.9 × 10^(-5) kg^(-1) d^(-1) keV^(-1). The nuclear recoil background in the same region is 2.8 × 10^(-7) kg^(-1) d^(-1) keV^(-1). With an exposure of 5.6 ton-years, the sensitivity of Panda X-4 T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10^(-48) cm^2 at a dark matter mass of 40 Ge V/c^2. | HongGuang Zhang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui BinBin Dong DeQing Fang ChangBo Fu Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo ZhiFan Guo Ke Han ChangDa He ShengMing He Di Huang XingTao Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju ShaoLi Li Yao Li Heng Lin HuaXuan Liu JiangLai Liu YuGang Ma YaJun Mao KaiXiang Ni JinHua Ning XiangXiang Ren Fang Shi AnDi Tan AnQing Wang Cheng Wang HongWei Wang Meng Wang QiuHong Wang SiGuang Wang XiuLi Wang XuMing Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu JuMin Yuan JianFeng Yue Dan Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，3： | 6 |
| 13 | Effect of cold rolling process on microstructure and mechanical properties of high strength β titanium alloy thin sheets显示文摘The microstructure and mechanical properties of Ti-3.5Al-5Mo-6V-3Cr-2Sn-0.5Fe high strength titanium alloy sheets prepared by unidirectional cold rolling and two-step cross cold rolling were investigated. Results showed that the β phase grains were refined significantly by cold rolling followed by solution treatment for a short time.Compared to unidirectional cold rolling, the short time solution treatment after two-step cross rolling could significantly reduce the non-uniformity of the microstructure of the alloy sheets. After aging treatment at 550 ℃,the anisotropy of the mechanical properties still existed in the unidirectional rolled sheets, and the tensile strength was highest along the rolling direction. After solution and aging treatment, the anisotropy of the mechanical properties of the two-step cross rolling process sheet was not obvious than unidirectional cold rolling,and alloy had good strength and plasticity matching. | Yan Ma Zhaoxin Du Xiaoming Cui Jun Cheng Guolong Liu Tianhao Gong Huimin Liu Xiaopeng Wang Yuyong Chen | 2018 | Progress in Natural Science:Materials International2018，28，6： | 6 |
| 14 | Effects of Ti additive on HPHT diamond synthesis in Fe-Ni-C system显示文摘Diamond crystals with low nitrogen concentration were synthesized from the Fe-Ni-C system with Ti additive at high pressure and high temperature (HPHT) in a china-type cubic high pressure apparatus (CHPA). The synthesis pressure range was 4.8-5.2 GPa, and the temperature range was 1420-1600 K. The lowest synthesis pressure for diamond fell first and then rose with the increase of Ti additive. The color, shape, surface morphology and nitrogen impurity concentration of the synthesized diamond crystals were characterized using optical microscopy (OM), scanning electron microscopy (SEM) and micro Fourier transform infrared (FTIR) spectrometry. The results show that the Ti additive has significant effects on color, growth rate, crystal shape, surface morphology and nitrogen impurity con- centration of the synthesized diamond crystals. The color of diamond crystals synthesized without Ti additive is yellow, while that with Ti additive becomes light and nearly colorless. The growth rate without Ti additive is higher than that with Ti additive. The crystal shapes of as-grown diamond crystals vary with the increase of Ti additive. The {111} crystal faces become dominant and some {311} crystal faces appear with the increase of Ti additive. The concentration of nitrogen impurity in diamond crystals without Ti additive is higher than that with Ti additive. | HAN Wei JIA XiaoPeng JIA HongSheng HU MeiHua HUANG HaiLiang LIU XiaoBing MA HongAn | 2009 | Chinese Science Bulletin2009，54，17： | 6 |
| 15 | Electroacupuncture at Tianshu (ST 25) for diarrhea-predominant irritable bowel syndrome using positron emission tomography Changes in visceral sensation center显示文摘Previous studies have demonstrated that electroacupuncture therapy is effective in the treatment of irritable bowel syndrome. However, the precise mechanism of this therapy is unknown. The present study served to investigate the effects of electroacupuncture therapy on treatment of patients with diarrhea-predominant irritable bowel syndrome (IBS). We compared brain activation maps based on the changes of cerebral glucose metabolism obtained by 18-fluorodeoxyglucose positron emission tomography scanning under three conditions: resting, rectal balloon distension and rectal balloon distension plus electroacupuncture. Under the resting condition, compared with healthy controls, IBS patients displayed an increasing regional cerebral metabolic rate of glucose over a wide range: bilateral superior temporal gyrus, right middle occipital gyrus, superior frontal gyrus and bilateral middle frontal gyrus. However, there was no significant activity in the visceral pain center. Compared with the resting condition, under the rectal balloon distension condition, patients with IBS had a greater regional cerebral metabolic rate of glucose in the prefrontal cortex, left anterior cingulate cortex, postcentral gyrus, precentral gyrus and temporal gyrus. Under the rectal balloon distension plus electroacupuncture condition, stimulation by electroacupuncture at Tianshu (ST 25) manifested a decreased regional cerebral metabolic rate of glucose in the left cingulate gyrus, right insula, right caudate nucleus, fusiform gyrus and hippocampal gyrus. Electroacupuncture therapy relieved abdominal pain, distension or discomfort by decreasing glucose metabolism in the brain. | Huirong Liu Li Qi Xiaolong Wang Yihui Guan Chuantao Zuo Linying Tan Lingsong Yuan Xiaopeng Ma Xiaomei Wang Enhua Zhou Huangan Wu | 2010 | Neural Regeneration Research2010，5，16： | 6 |
| 16 | Effects of carbon diffusing field in alloy solvent on the growth of tower-shape diamond single crystal显示文摘High-quality type-Ib tower-shape diamond single crystals were synthesized in cubic anvil high pressure apparatus (SPD-6×1200) at 5.4 GPa and 1250-1450°C. The (100) face of seed crystal was used as the growth face, and FeNiMnCo alloy was used as the solvent/catalyst. Two kinds of carbon diffusing fields (type-B and type-G) were simulated by finite element method (FEM). Using the two kinds of carbon diffusing fields, many diamond single crystals were synthesized. The effects of carbon diffusing fields on the crystal quality and β value (the ratio of height to diameter of diamond crystal) were studied. The results show that using type-B diffusing field, considerable inclusions appeared in tower-shape diamond crystals with high β values; however, using type- G diffusing field, inclusions were reduced markedly in high β values tower-shape diamond crystals, and the crystal, up to 0.6 carat in weight and 5.3 mm in size, was synthesized. Experimental phenomena were explained well with the help of the FEM. | XIAO HongYu MA HongAn TIAN Yu LI Rui LI ShangSheng MA LiQiu LI Yong JIA XiaoPeng | 2010 | Chinese Science Bulletin2010，55，1： | 5 |
| 17 | Dependence of nitrogen concentration in type Ib diamonds on synthesis temperature显示文摘Type Ib diamonds were grown by the temperature gradient method (TGM) at 5.5 GPa and 1500-1560 K in a china-type cubic anvil high pressure apparatus using Ni70Mn25Co5 alloy as solvent/catalyst. The concentration of nitrogen (CN) in type Ib diamonds synthesized at different synthesis temperatures was measured by a Fourier transform infrared (FTIR) spectrometer. The dependence of CN in diamond on synthesis temperature was studied. For the type Ib diamonds synthesized using Ni70Mn25Co5 as catalyst, its CN decreases along with the increase of synthesis temperature. | TIAN Yu JIA XiaoPeng ZANG ChuanYi LI ShangSheng XIAO HongYu ZHANG YaFei HUANG GuoFeng LI Rui HAN QiGang MA LiQiu LI Yong CHEN XiaoZhou ZHANG Chong MA HongAn | 2009 | Chinese Science Bulletin2009，54，9： | 5 |
| 18 | FEM analysis on the effect of cobalt content on thermal residual stress in polycrystalline diamond compact(PDC)显示文摘Thermal residual stress in Polycrystalline Diamond Compacts(PDCs) is mainly caused by the mismatch in the Coefficients of Thermal Expansion(CTE) between the polycrystalline diamond(PCD) layer and WC-Co substrate.In the PCD layer,the CTE of cobalt exhibit magnitudes four times larger than those of diamond.Cobalt content in the PCD layer has important effects on the thermal residual stress of PDCs.In this work,the effects of cobalt content on thermal residual stress in PCDs were investigated by the Finite Element Method(FEM).The simulation results show that the thermal residual stress decreases firstly,and then increases with increasing cobalt content(1 vol.%-20 vol.%),which reaches a minimum value when the cobalt content is about 10 vol.%.The FEM analysis results are in agreement with our experimental results.It will provide an effective method for further designing and optimizing PDC properties. | LI ZhanChang JIA HongSheng MA HongAn GUO Wei LIU XiaoBing HUANG GuoFeng LI Rui JIA XiaoPeng | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，4： | 5 |
| 19 | Construction of an intrahepatic portosystemic shunt using the magnetic compression technique: preliminary experiments in a canine model显示文摘Portal hypertension caused by liver cirrhosis due to hepatitis is a common clinical condition that can cause bleeding from esophageal and gastric varices in severe cases.In 1969,Rösch et al.first described a successful transjugular intrahepatic portosystemic shunt(TIPS)in animal experiments(1).In 1989,Richter et al.first used this technology in clinical practice(2). | Miaomiao Zhang Jia Ma Yingfeng An Yi Lyu Xiaopeng Yan | 2022 | Hepatobiliary Surgery and Nutrition2022，11，4： | 5 |
| 20 | Mechanism of diamond-to-graphite transformation at diamond-stable conditions显示文摘The diamond-to-graphite transformation at diamond-stable conditions is studied by temperature gradient method (TGM) under high pressure and high temperature (HPHT), although it is unreasonable from the view of thermodynamic considerations. It is found that, at diamond-stable conditions, for example, at 5.5 GPa and 1550 K, with fine diamond grits as carbon source and NiMnCo alloy as metal solvent assisted, not only large diamond crystals, but metastable regrown graphite crystals would be grown by layer growth mechanism, and the abundance of carbon source in the higher temperature region is indispensable for the presence of metastable regrown graphite crystals. From this transformation, it is concluded that, with metal solvent assisted, although the mechanism of crystal growth could be understood by the macro-mechanism of solubility difference between diamond and graphite in metal solvents, from the point of micro-mechanism, the minimum growth units for diamond or graphite crystals should be at atomic level and unrelated to the kinds of carbon source (diamond or graphite), which could be accumulated free-selectively on the graphite with sp2π or diamond crystals with sp3 bond structure. | ZANG ChuangYi CHEN XiaoZhou HU Qiang MA HongAn JIA XiaoPeng | 2009 | Chinese Science Bulletin2009，54，14： | 4 |
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