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| 1 | Red-emitting YAG:Ce,Mn transparent ceramics for warm WLEDs application显示文摘A series of YAG:Ce,Mn transparent ceramics were prepared via a solid-state reaction-vacuum sintering method.The effects of various Mn^2+–Si4+pair doping levels on the structure,transmittance,and luminescence properties were systematically investigated.These transparent ceramics have average grain sizes of 10–16μm,clean grain boundaries,and excellent transmittance up to 83.4%at 800 nm.Under the excitation of 460 nm,three obvious emission peaks appear at 533,590,and 745 nm,which can be assigned to the transition 5 d→4 f of Ce^3+and 4 T1→6 A1 of Mn^2+.Thus,the Mn^2+–Si4+pairs can effectively modulate the emission spectrum by compensating broad orange-red and red spectrum component to yield high quality warm white light.After the optimized YAG:Ce,Mn transparent ceramic packaged with blue light-emitting diode(LED)chips,correlated color temperature(CCT)as low as 3723 K and luminous efficiency(LE)as high as 96.54 lm/W were achieved,implying a very promising candidate for application in white light-emitting diodes(WLEDs)industry. | Junrong LING Youfu ZHOU Wentao XU He LIN Shuai LU Bin WANG Kun WANG | 2020 | Journal of Advanced Ceramics2020,9,1: | 15 |
| 2 | Arabidopsis NIP3;1 Plays an Important Role in Arsenic Uptake and Root-to-Shoot Translocation under Arsenite Stress Conditions显示文摘在 Arabidopsis, nodulin 26-like 内在的蛋白质(捏) aquaporin 蛋白质的亚科由九个成员,组成哪个中的五个(NIP1; 1, NIP1; 2, NIP5; 1, NIP6; 1,并且 NIP7; 1 ) 以前被识别对亚砷酸盐可渗透。然而,角色在植物在亚砷酸盐的 root-to-shoot translocation 捏仍然保持糟糕理解。在这研究,用反向的基因策略, Arabidopsis NIP3; 1 被识别在亚砷酸盐压力条件下面在砷举起和 root-to-shoot 分发起一个重要作用。nip3; 1 loss-of-function 异种在亚砷酸盐忍耐显示了明显的改进为未葬生长和积累的更少砷在野类型的植物比那些射击,而 nip3; 1 nip1; 1 两倍异种显示出强壮的亚砷酸盐忍耐并且在亚砷酸盐压力条件下面改进了根和射击的生长。一个倡导者 -- glucuronidase 分析揭示了那 NIP3; 1 几乎专门在根被表示(与根尖端的异常) ,并且在酵母 Saccharomyces cerevisiae 的 heterologous 表示表明了那 NIP3; 1 能调停亚砷酸盐运输。一起拿,我们的结果建议那 NIP3; 1 在 Arabidopsis 涉及亚砷酸盐举起和 root-to-shoot translocation,可能作为被动、双向的亚砷酸盐 transporter。 | WenzhongXu Wentao Dai Huili Yan Sheng Li Hongling Shen Yanshan Chen Hua Xu Yangyang Sun Zhenyan He Mi Ma | 2015 | Molecular Plant2015,8,5: | 13 |
| 3 | A DELLA protein complex controls the arbuscular mycorrhizal symbiosis in plants显示文摘 | Nan Yu Dexian Luo Xiaowei Zhang Junzhong Liu Wanxiao Wang Yue Jin Wentao Dong Jiyun Liu Huan Liu Weibing Yang Longjun Zeng Qun Li Zuhua He Giles E D Oldroyd Ertao Wang | 2014 | Cell Research2014,24,1: | 9 |
| 4 | Sensitivity-enhanced surface plasmon resonance sensor utilizing a tungsten disulfide (WS_2) nanosheets overlayer显示文摘Tungsten disulfide(WS_2), as a representative layered transition metal dichalcogenide(TMDC) material, possesses important potential for applications in highly sensitive sensors. Here, a sensitivity-enhanced surface plasmon resonance(SPR) sensor with a metal film modified by an overlayer of WS_2 nanosheets is proposed and demonstrated. The SPR sensitivity is related to the thickness of the WS_2 overlayer, which can be tailored by coating a WS_2 ethanol suspension with different concentrations or by the number of times of repeated post-coating.Benefitting from its large surface area, high refractive index, and unique optoelectronic properties, the WS_2 nanosheet overlayer coated on the gold film significantly improves the sensing sensitivity. The highest sensitivity(up to 2459.3 nm∕RIU) in the experiment is achieved by coating the WS_2 suspension once. Compared to the case without a WS_2 overlayer, this result shows a sensitivity enhancement of 26.6%. The influence of the WS_2 nanosheet overlayer on the sensing performance improvement is analyzed and discussed. Moreover, the proposed WS_2 SPR sensor has a linear correlation coefficient of 99.76% in refractive index range of 1.333 to 1.360. Besides sensitivity enhancement, the WS_2 nanosheet overlayer is able to show additional advantages, such as protection of metal film from oxidation, tunability of the resonance wavelength region, biocompatibility, capability of vapor,and gas sensing. | HAO WANG HUI ZHANG JIANGLI DONG SHIQI HU WENGUO ZHU WENTAO QIU HUIHUI LU JIANHUI YU HEYUAN GUAN SHECHENG GAO ZHAOHUI LI WEIPING LIU MIAO HE JUN ZHANG ZHE CHEN YUNHAN LUO | 2018 | Photonics Research2018,6,6: | 8 |
| 5 | Fiber Laser Sensing System and Its Applications显示文摘An overview of fiber laser sensing is presented.The design and the characteristics of distributed feedback(DFB)fiber lasers for high performance sensing applications are described.Demodulation techniques based on unbalanced fiber interferometer are discussed,especially for the noise level,the dynamic range,and the crosstalk in dense-wavelength-division multiplexing.Finally,the fiber laser sensing system configurations and field demonstrations for different applications are illustrated. | Yuliang LIU Wentao ZHANG Tuanwei XU Jun HE Faxiang ZHANG Fang LI | 2011 | Photonic Sensors2011,1,1: | 7 |
| 6 | FUNCTIONAL CHARACTERIZATION OF CADMIUM-RESPONSIVE GARLIC GENE ASMT2B: A NEW MEMBER OF METALLOTHIONEIN FAMILY显示文摘A new gene of metallothionein (MT) family was cloned from garlic (Allium sativum) seed-lings using RACE method and designated AsMT2b. The full length of AsMT2b cDNA was 520 bp encod-ing 80 amino acids. The deduced amino acids of AsMT2b showed that AsMT2b contained the char-acteristic structure of type 2 MT proteins, but the number and arrangement of the cysteine residues in the N- and C-terminal domains was different from other type 2 MT proteins. Semi-quantitative reverse transcriptase-PCR showed that transcript levels of AsMT2b were enhanced only in response to higher concentrations or longer incubation time of Cd. Such an expression pattern of AsMT2b greatly differed from that of other type 2 MT genes. Yeast cells transformed with this gene had improved resistance to Cd. AsMT2b overexpressing Arabidopsis showed stronger Cd tolerance and higher Cd accumulation compared with wild-type plants. These results sug-gest that AsMT2b should be useful in phytoremedia-tion of Cd-polluted soil in the future. | ZHANG Haiyan XUWenzhong DAI Wentao HE Zhenyan MA Mi | 2006 | Chinese Science Bulletin2006,51,4: | 5 |
| 7 | Bioinspired MXene-Based User-Interactive Electronic Skin for Digital and Visual Dual-Channel Sensing显示文摘User-interactive electronic skin(e-skin) that could convert mechanical stimuli into distinguishable outputs displays tremendous potential for wearable devices and health care applications. However, the existing devices have the disadvantages such as complex integration procedure and lack of the intuitive signal display function. Here, we present a bioinspired user-interactive e-skin, which is simple in structure and can synchronously achieve digital electrical response and optical visualization upon external mechanical stimulus. The e-skin comprises a conductive layer with a carbon nanotubes/cellulose nanofibers/MXene nanohybrid network featuring remarkable electromechanical behaviors, and a stretchable elastomer layer, which is composed of silicone rubber and thermochromic pigments. Furthermore, the conductive nanohybrid network with outstanding Joule heating performance can generate controllable thermal energy under voltage input and then achieve the dynamic coloration of silicone-based elastomer. Especially, such an innovative fusion strategy of digital data and visual images enables the e-skin to monitor human activities with evermore intuition and accuracy. The simple design philosophy and reliable operation of the demonstrated e-skin are expected to provide an ideal platform for next-generation flexible electronics. | Wentao Cao Zheng Wang Xiaohao Liu Zhi Zhou Yue Zhang Shisheng He Daxiang Cui Feng Chen | 2022 | Nano-Micro Letters2022,14,7: | 4 |
| 8 | Swelling and thermal properties of porous PNIPAM/PEG hydrogels prepared by radiation polymerization显示文摘In this study,a series of porous intelligent hydrogels were synthesized by radiation exhibiting the lower critical solution temperature(LCST) and fast response involving a combination of A’-isopropyl acrylamideas monomer, polyethylene glycol(PEG) as pore-forming agent and N,N-methylene-bis-acrylamide as crosslinking agent.The hydrogels were analyzed by Fourier transform infrared spectroscopy,and the influence of radiation doses on their swelling and thermal behaviors were studied.Their surface morphologies were examined by scanning electron microscopy.The results showed that PEG molecules only acted as pore-forming agent in the cross-linked polymerization.Their swelling ratios reduced with increasing radiation doses.The LCST was around 37℃,and varied little with the radiation doses.The frozen water content of PNIPAM/PEG6000 hydrogel reduced with increasing the radiation dose,and was greater than that of PN1PAM hydrogel at 15 kGy.Hydrogel macropores were prepared by PEG agent,and the hydrogels without PEG had a dense surface.The porous hydrogels are expected to be applied in the field of artificial intelligence material. | LI Zhihui LIU Wentao LI Zhongyuan YANG Mingcheng GAO Xujing CUI Haitao HE Suqin ZHU Chengshen | 2013 | Nuclear Science and Techniques2013,24,2: | 3 |
| 9 | The development of the 2,4-dienoyl CoA reductase 1 gene(DECR 1) in pig显示文摘2,4-dienoyl CoA reductase gene(DECR 1)is mapped on pig 4 q 1.2,includes ten exons and nine introns of variable size that span 30 kb.DECR 1 gene participates in theβ-oxidation pathway,affects the content of intramuscular fatty acid,especially the percentage of linoleic acid.The expression of DECR 1 gene has important influence on IMF,the pH,and the meat colour of pork, further affects the meat quality. | WANG Wentao YANG Xiuqin HE Xinmiao LIU Di | 2007 | Journal of Northeast Agricultural University(English Edition)2007,14,3: | 3 |
| 10 | Selective laser melting of dense and crack-free AlCoCrFeNi_(2.1) eutectic high entropy alloy: Synergizing strength and ductility显示文摘Additively manufactured high-entropy alloys generally suffer from low strength and/or poor ductility.In this work,by leveraging the good castability of eutectic high entropy alloys and high cooling rate of selective laser melting(SLM),we report a nearly fully dense and crack-free as-SLM AlCoCrFeNi_(2.1) eutectic high entropy alloy with an exceptional strength-ductility synergy,showing an ultrahigh yield strength of 982.1±35.2 MPa and an ultimate tensile strength of 1322.8±54.9 MPa together with an elongation to fracture of 12.3±0.5%.Such strength-ductility enhancement is owing to the heterogeneous eutectic microstructure consisting of the columnar,equiaxed,and“L-shape”cells with much refined sizes down to nanoscales.The morphology of cells in the transition zone is related to the misorientation between the growth direction of adjacent layers.This heterogeneous eutectic microstructure is the result of the graingrowth behavior dominated by the mechanisms of the epitaxial growth and growth of heterogeneous nuclei in SLM.Our current results provide a new methodology for the future design of ultrahigh-strength and ductile SLM-fabricated metallic materials including HEAs,and other printable alloys for various structural applications. | Lin He Shiwei Wu Anping Dong Haibin Tang Dafan Du Guoliang Zhu Baode Sun Wentao Yan | 2022 | Journal of Materials Science & Technology2022,,22: | 2 |
| 11 | Tuning charge density of chimeric antigen receptor optimizes tonic signaling and CAR-T cell fitness显示文摘Tonic signaling of chimeric antigen receptor(CAR),i.e.,the spontaneous CAR activation in the absence of tumor antigen stimulation,is considered to be a pivotal event controlling CAR-T efficacy.However,the molecular mechanism underlying the spontaneous CAR signals remains elusive.Here,we unveil that positively charged patches(PCPs)on the surface of the CAR antigenbinding domain mediate CAR clustering and result in CAR tonic signaling.For CARs with high tonic signaling(e.g.,GD2.CAR and CSPG4.CAR),reducing PCPs on CARs or boosting ionic strength in the culture medium during ex vivo CAR-T cell expansion minimizes spontaneous CAR activation and alleviates CAR-T cell exhaustion.In contrast,introducing PCPs into the CAR with weak tonic signaling,such as CD19.CAR,results in improved in vivo persistence and superior antitumor function.These results demonstrate that CAR tonic signaling is induced and maintained by PCP-mediated CAR clustering.Notably,the mutations we generated to alter the PCPs maintain the antigen-binding affinity and specificity of the CAR.Therefore,our findings suggest that the rational tuning of PCPs to optimize tonic signaling and in vivo fitness of CAR-T cells is a promising design strategy for the nextgeneration CAR. | Jian Chen Shizhen Qiu Wentao Li Kun Wang Yu Zhang Han Yang Baichuan Liu Guangfei Li Li Li Min Chen Junjie Lan Jiahua Niu Peijie He Lei Cheng Gaofeng Fan Xin Liu Xianmin Song Chenqi Xu Haitao Wu Haopeng Wang | 2023 | Cell Research2023,33,5: | 2 |
| 12 | Research Progress on the Effect of Aflatoxin on Poultry Immunization显示文摘Aflatoxins( AFs) are a major pollution source of grain pollution and are secondary metabolites produced by Aspergillus flavus and A.parasiticus,which are one of the most toxic and carcinogenic substances.Feeding animals with aflatoxin-contaminated food can cause toxicosis,acute liver injury or liver cancer in animals,and also can cause multiple organ damage,decline in production performance and disease resistance,even death,which brings great economic losses to animal husbandry.In addition,AFs can do great harm to the human body.When the body ingests large amounts of AFs,it may suffer from acute poisoning and acute liver damage; and AFs can cause chronic poisoning of the body with continuous intake of trace AFs.This paper briefly analyzed the effect of AFs on the structure and function of poultry immune organs,immune gene expression,immunosuppression and so on. | Xiaolong YU Xinmiao HE Wentao WANG Yanzhong FENG Heshu CHEN Ming TIAN Di LIU | 2018 | Agricultural Biotechnology2018,7,6: | 2 |
| 13 | Discovery of carbon-based strongest and hardest amorphous material显示文摘Carbon is one of the most fascinating elements due to its structurally diverse allo tropic forms stemming from its bonding varieties(sp,sp^(2)and sp^(3)).Exploring new forms of carbon has been the eternal theme of scientific research.Herein,we report on amorphous(AM) carbon materials with a high fraction of sp^(3)bonding recovered from compression of fullerene C_(60) under high pressure and high temperature,previously unexplored.Analysis of photoluminescence and absorption spectra demonstrates that they are semiconducting with a bandgap range of 1.5-2.2 eV,comparable to that of widely used AM silicon.Comprehensive mechanical tests demonstrate that synthesized AM-Ⅲ carbon is the hardest and strongest AM material known to date,and can scratch diamond crystal and approach its strength.The produced AM carbon materials combine outstanding mechanical and electronic properties,and may potentially be used in photovoltaic applications that require ultrahigh strength and wear resistance. | Shuangshuang Zhang Zihe Li Kun Luo Julong He Yufei Gao Alexander V.Soldatov Vicente Benavides Kaiyuan Shi Anmin Nie Bin Zhang Wentao Hu Mengdong Ma Yong Liu Bin Wen Guoying Gao Bing Liu Yang Zhang Yu Shu Dongli Yu Xiang-Feng Zhou Zhisheng Zhao Bo Xu Lei Su Guoqiang Yang Olga P.Chernogorova Yongjun Tian | 2022 | National Science Review2022,9,1: | 2 |
| 14 | Glycosyltransferases:Mining,engineering and applications in biosynthesis of glycosylated plant natural products显示文摘UDP-Glycosyltransferases(UGTs)catalyze the transfer of nucleotide-activated sugars to specific acceptors,among which the GT1 family enzymes are well-known for their function in biosynthesis of natural product glycosides.Elucidating GT function represents necessary step in metabolic engineering of aglycone glycosylation to produce drug leads,cosmetics,nutrients and sweeteners.In this review,we systematically summarize the phylogenetic distribution and catalytic diversity of plant GTs.We also discuss recent progress in the identifi-cation of novel GT candidates for synthesis of plant natural products(PNPs)using multi-omics technology and deep learning predicted models.We also highlight recent advances in rational design and directed evolution engineering strategies for new or improved GT functions.Finally,we cover recent breakthroughs in the appli-cation of GTs for microbial biosynthesis of some representative glycosylated PNPs,including flavonoid glycosides(fisetin 3-O-glycosides,astragalin,scutellarein 7-O-glucoside),terpenoid glycosides(rebaudioside A,ginseno-sides)and polyketide glycosides(salidroside,polydatin). | Bo He Xue Bai Yumeng Tan Wentao Xie Yan Feng Guang-Yu Yang | 2022 | Synthetic and Systems Biotechnology2022,7,1: | 2 |
| 15 | An efficient papaya leaf distortion mosaic potyvirus vector for virus-induced gene silencing in papaya显示文摘Papaya(Carica papaya L.)is regarded as an excellent model for genomic studies of tropical trees because of its short generation time and its small genome that has been sequenced.However,functional genomic studies in papaya depend on laborious genetic transformations because no rapid tools exist for this species.Here,we developed a highly efficient virus-induced gene silencing(VIGS)vector for use in papaya by modifying an artificially attenuated infectious clone of papaya leaf distortion mosaic virus(PLDMV;genus:Potyvirus),PLDMV-E,into a stable Nimble Cloning(NC)-based PLDMV vector,pPLDMV-NC,in Escherichia coli.The target fragments for gene silencing can easily be cloned into pPLDMV-NC without multiple digestion and ligation steps.Using this PLDMV VIGS system,we silenced and characterized five endogenous genes in papaya,including two common VIGS marker genes,namely,phytoene desaturase,Mg-chelatase H subunit,putative GIBBERELLIN(GA)-INSENSITIVE DWARF1A and 1B encoding GA receptors;and the cytochrome P450 gene CYP83B1,which encodes a key enzyme involved in benzylglucosinolate biosynthesis.The results demonstrate that our newly developed PLDMV VIGS vector is a rapid and convenient tool for functional genomic studies in papaya. | Decai Tuo Pu Yan Guangyuan Zhao Hongguang Cui Guopeng Zhu Yang Liu Xiukun Yang He Wang Xiaoying Li Wentao Shen Peng Zhou | 2021 | Horticulture Research2021,8,1: | 2 |
| 16 | Endoplasmic reticulum stress mediates homocysteine-induced hypertrophy of cardiac cells through activation of cyclic nucleotide phosphodiesterase 1C显示文摘Although the association of elevated homocysteine level with cardiac hypertrophy has been reported,the molecular mechanisms by which homocysteine induces cardiac hypertrophy remain inadequately understood.In this study we aim to uncover the roles of cyclic nucleotide phosphodiesterase 1(PDE1)and endoplasmic reticulum(ER)stress and their relationship to advance the mechanistic understanding of homocysteine-induced cardiac cell hypertrophy.H9c2 cells and primary neonatal rat cardiomyocytes are exposed to homocysteine with or without ER stress inhibitor TUDCA or PDE1-specific inhibitor Lu AF58027,or transfected with siRNAs targeting PDE1 isoforms prior to homocysteine-exposure.Cell surface area is measured and ultrastructure is examined by transmission electron microscopy.Hypertrophic markers,PDE1 isoforms,and ER stress molecules are detected by q-PCR and western blot analysis.Intracellular cGMP and cAMP are measured by ELISA.The results show that homocysteine causes the enlargement of H9c2 cells,increases the expressions of hypertrophic markers β-MHC and ANP,upregulates PDE1A and PDE1C,promotes the expressions of ER stress molecules,and causes ER dilatation and degranulation.TUDCA and Lu AF58027 downregulate β-MHC and ANP,and alleviate cell enlargement.TUDCA decreases PDE1A and PDE1C levels.Silencing of PDE1C inhibits homocysteine-induced hypertrophy,whereas PDE1A knockdown has minor effect.Both cAMP and cGMP are decreased after homocysteine-exposure,while only cAMP is restored by Lu AF58027 and TUDCA.TUDCA and Lu AF58027 also inhibit cell enlargement,downregulate ANP,β-MHC and PDE1C,and enhance cAMP level in homocysteine-exposed primary cardiomyocytes.ER stress mediates homocysteine-induced hypertrophy of cardiac cells via upregulating PDE1C expression.Cyclic nucleotide,especially cAMP,is the downstream mediator of the ER stress-PDE1C signaling axis in homocysteine-induced cell hypertrophy. | Wentao Sun Yang Zhou Hongmei Xue Haitao Hou Guowei He Qin Yang | 2022 | Acta Biochimica et Biophysica Sinica2022,54,3: | 2 |
| 17 | Effects of different Chinese herbal prescriptions on cytokines in autoimmune prostatitis rats显示文摘OBJECTIVE:To observe and compare the effects of Chinese herbal prescriptions for promoting blood circulation,clearing heat,removing toxicity,and dispersing stagnated liver-Qi on cytokines in model rats with experimental autoimmune prostatitis(EAP) to provide an experimental basis for the use of Chinese herbal prescriptions in the treatment of chronic prostatitis.METHODS:One-hundred and ten male Wistar rats were randomly divided into 11 groups:blank group;model group;Huoxuehuayu(promoting blood circulation to remove blood stasis) high,middle,and low dose groups;Qingrejiedu(clearing heat and removing toxicity) high,middle,and low dose groups;and Shuganliqi(dispersing stagnated liver-Qi) high,middle,and low dose groups.Except the blank group,rats in all groups were injected subcutaneously in multiple points on days 0 and 30 with prostatic protein extractive solution(60 mg/ml_),and intraperitoneally injected with diphtheria-pertussis and tetanus vaccine(DPT vaccine) to establish the EAP model.Model rats were administrated high,middle,and low doses of Chinese herbal prescriptions and were sacrificed after 4 weeks.Pathological changes in the prostate gland were observed with HE staining and changes in serum interleukin-6(IL-6),interleukin-8(IL-8),and prostaglandin E_2(PGE_2) levels were detected with enzyme-linked immunosorbent assay.RESULTS:Compared with the blank group,serum PGE_2,IL-6,and IL-8 levels in the model group were significantly higher(P < 0.05).Compared with the model group,serum PGE_2,IL-6,and IL-8 levels in the Qingrejiedu low dose and middle dose groups were significantly lower(P < 0.05),with the lower dose having a more obvious effect.Serum PGE_2,IL-6,and IL-8 levels in the Huoxuehuayu high dose group(P < 0.05),IL-6 and IL-8 levels in the Huoxuehuayu middle dose group(P < 0.05),and the IL-8level in the Huoxuehuayu low dose group were significantly lower than those in the model group(P < 0.05).There were significant differences in PGE_2 and IL-6 levels among the different dose groups of Shuganliqi drugs(P < 0.05).Compared with the model group,serum PGE_(2/) IL-6,and IL-8levels in the Shuganliqi high dose group(P <0.05) and IL-8 level in the Shuganliqi low dose group were significantly lower(P < 0.05),while the Shuganliqi middle dose group did not change significantly(P > 0.05).CONCLUSION:Therefore,in TCM treatment of autoimmune prostatitis,different treatment methods should select different doses.For prescriptions that clear heat and remove toxicity,low doses should be used.For prescriptions that promote blood circulation to remove blood stasis and for prescriptions that disperse stagnated liver-Qi,high doses should be used. | Song Guohong Zhang Qiumei Pang Baozhen He Lijuan Saimaiti Julaiti Tulahong Aisikeer Gao Xuan You Lina Wuxiuer Reyihan Zhou Wentao Pang Qingyang | 2015 | Journal of Traditional Chinese Medicine2015,35,2: | 2 |
| 18 | Development and optimization of an efficient method to detect the authen-tieity of edible oils 显示文摘 | HE Jing XU Wentao SHANG Yin | 2013 | Food Control2013,31,: | 1 |
| 19 | Experimental study on expansion and cracking properties of static cracking agents in different assembly states显示文摘Rolled static cracking agent(RSCA)can solve the intractable problem of traditional bulk static cracking agent(BSCA)in engineering applications.This paper innovatively studies the rational water-cement ratio of BSCA and the immersion soaking time of RSCA under the condition of controlling temperature.Through the expansion and cracking performance experiments,the development characteristics of expansion pressure,the cracking effect of the single-hole specimen and the performance of hole spraying prevention under the action of BSCA and RSCA were compared and analyzed.The results show that:(1)The volume growth rate of static cracking agent decreases with the increase of water-cement ratio,and the fluidity increases with the increase of water-cement ratio.The rational water-cement ratio for BSCA application is 0.3,and the rational immersion time of RSCA is 2-2.5 min;(2)Under the bore diameters of 30,35,40 and 45 mm,the expansion pressure of BSCA with a water-cement ratio of 0.3 is 38.2,52.3,61.5 and 68 MPa,and the expansion pressure of RSCA immersed in water for 2.5 min is 43.5,58.8,69.5 and 75.1 MPa,respectively.Among them,the development speed of expansion pressure of BSCA is higher than that of RSCA,and the arrival time of the peak expansion pressure of RSCA is 1.7 times that of BSCA;(3)The crack initiation speed of single-hole specimen under the action of RSCA is 10.3%lower than that under the action of BSCA,but the cracking speed of the former is 72.6%higher than that of the latter;(4)The hole spraying occurs in BSCA under the bore diameter of 50,55 and 60 mm,while the hole spraying occurs in RSCA under the bore diameter of 60 mm.In terms of bore diameter,the hole spraying prevention of the RSCA is better than that of BSCA.The research results enrich the static blasting technology and provide data support and theoretical reference for field application. | Chong Li Sifeng He Wentao Hou Dan Ma | 2022 | International Journal of Mining Science and Technology2022,32,6: | 1 |
| 20 | Safety assessmentof Cry 1C protein from genetically modified rice according to thestandards of PR China for a new food resource显示文摘 | CAO Sishuo HE Xiaoyun XU Wentao | 2010 | RegulatoryToxicology and Pharmacology2010,58,3: | 1 |