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| 1 | Benzene containing polyhydroxyalkanoates homo-and copolymers synthesized by genome edited Pseudomonas entomophila显示文摘Microbial synthesis of functional polymers has become increasingly important for industrial biotechnology.For the first time,it became possible to synthesize controllable composition of poly(3-hydroxyalkanoate)(P3HA)consisting of 3-hydroxydodecanoate(3HDD)and phenyl group on the side-chain when chromosome of Pseudomonas entomophila was edited to weaken itsβ-oxidation.Cultured in the presence of 5-phenylvaleric acid(PVA),the edited P.entomophila produced only homopolymer poly(3-hydroxy-5-phenylvalerate)or P(3HPhV).While copolyesters P(3HPhV-co-3HDD)of 3-hydroxy-5-phenylvalerate(3HPhV)and 3-hydroxydodecanoate(3HDD)were synthesized when the strain was grown on mixtures of PVA and dodecanoic acid(DDA).Compositions of 3HPhV in P(3HPhV-co-3HDD)were controllable ranging from 3%to 32%depending on DDDA/PVA ratios.Nuclear magnetic resonance(NMR)spectra clearly indicated that the polymers were homopolymer of P(3HPhV)and random copolymers of 3HPhV and 3HDD.Their mechanical and thermal properties varied dramatically depending on the monomer ratios.Our results demonstrated the possibility to produce tailor-made,novel functional PHA using the chromosome edited P.entomophila. | SHEN Rui CAI LongWei MENG DeChuan WU LinPing GUO Kai DONG GuoXing LIU Lei CHEN JinChun WU Qiong CHEN GuoQiang | 2014 | Science China(Life Sciences)2014，57，1： | 4 |
| 2 | Supervised nonlinear dimensionality reduction for visualization and classification显示文摘 | Geug Xin Zhan Dechuan Zhou Zhihua | 2004 | IEEE Trans on SMCB2004，，： | 1 |
| 3 | Textured BaTi2O5 ceramic synthesized by laser rapid solidification method and its dielectric properties显示文摘 | Junji Zhang Jumei Yu Mingju Chao Erjun Liang Mingyu Li Dechuan Li | 2012 | Journal of Materials Science2012，，3： | 1 |
| 4 | Supervised nonlinear dimensionality reduction for visualization and classification显示文摘 | GENG Xin ZHAN Dechuan ZHOU Zhihua | 2005 | IEEE Transactions on Systems Man and Cybernetics-Part B:Cybernetics2005，35，6： | 1 |
| 5 | Experimental research on bidi- rectional vortices in cold wall rocket thruster 显示文摘 | Dechuan Sun Shang Liu | 2012 | Aero- space Science and Technology2012，18，1： | 1 |
| 6 | Supervised nonlinear dimensionality reduction for visualization and classifiication 显示文摘 | Xin Geng Zhan Dechuan Zhou Zhihua | 2005 | IEEE Trans on SMC B2005，35，6： | 1 |
| 7 | A feasi- ble natural hedging strategy for insurance companies 显示文摘 | Wang Chouwen Huang H C Hong Dechuan | 2013 | Insurance: Mathematics and Economics2013，52，3： | 1 |
| 8 | Some Results on Noetherian Warfield Domains显示文摘Let R be a domain.In this paper,we show that if R is one dimensional,then R is a Noetherian Warfield domain if and only if every maximal ideal of R is 2-generated and for every maximal ideal M of R,M is divisorial in the ring(M:M).We also prove that a Noetherian domain R is a Noetherian Warfield domain if and only if for every maximal ideal M of R,M^(2) can be generated by two elements.Finally,we give a sufficient condition under which all ideals of R are strongly Gorenstein projective. | Kui Hu Jung Wook Lim Dechuan Zhou | 2022 | Algebra Colloquium2022，29，1： | 0 |
| 9 | Rapid Access to Polysubstituted Tetrahydrocarbazol-4-ones via Sequential Selective C—H Functionalization from N-Nitrosoanilines显示文摘Comprehensive Summary Herein,we have developed a strategy of Rh(III)-catalyzed C—H activation of N-nitrosoanilines and iodonium ylides to construct novel tetralydrocarbzol-4-one scaffolds,which provided valuable templates for sequential C—H functionalization such as alkylation,alkenylation,amidation and(hetero)arylation at C^(5)-position of tetralydrocarbzol-4-one with different coupling partners.Gram-scale synthesis and further transformations of tetralydrocarbzol-4-one derivatives to Ondansetron and its analogues demonstrated the utility of this protocol,which enabled the concise and diverse construction of biologically active molecules. | Chan Li Yanchen Yang Feifei Fang Chaoyi Liu Chunpu Li Dechuan Wang Hong Liu | 2023 | Chinese Journal of Chemistry2023，41，16： | 0 |
| 10 | Two-dimensional self-adapting fast Fourier transform algorithm for nanoparticle sizing by ultrafast image-based dynamic light scattering显示文摘In nanoparticle sizing using the ultrafast image-based dynamic light scattering (UIDLS)method,larger impurities and dark noise from the complementary metal-oxide-semiconductor (CMOS)detector affect measurement accuracy.To solve this problem,a two-dimensional self-adapting fast Fourier transform (2D-SAFFT)algorithm is proposed for UIDLS.Dynamic light scattering images of nanoparticles are processed using 2D fast Fourier transforms,and a high-frequency threshold and a low-frequency threshold are then set using the self-adapting algorithm to eliminate the effects of the dark noise of the CMOS detector and the impurities.The signals caused by the dark noise of the CMOS detector and the impurities are cut off using the high-frequency threshold and the low-frequency threshold.The signals without the high- and low-frequency components are then processed again using an inverse Fourier transform to obtain new images without the dark noise and impurities signals.The mean diameters of the measured nanoparticles can be obtained from images obtained using UIDLS.Five standard latex nanoparticles (46,100, 203,508,994nm)and commercial nanoparticles (antimony-doped tin oxide,indium tin oxide,TWEEN- 80,nano-Fe,and nano-Al2O3)were measured using this new method.Results show that 2D-SAFFT can effectively eliminate the effects of dark noise from the CMOS detector and the impurities. | Dechuan Zhang Xiaoshu Cai Wu Zhou | 2018 | Particuology2018，16，6： | 0 |
| 11 | Waste sorting and its effects on carbon emission reduction:Evidence from China显示文摘Considering the importance of waste sorting and treatment in the development of an ecological civilization,empirically evaluating the environmental impact of such programs is particularly important.This study uses Xiao'er Township in Gong County,Sichuan Province,China as a case study to analyze and estimate the carbon emission reduction effects of the township's pilot waste sorting program.Using the five-point sampling method,samples of waste are collected,reviewed,and measured for their major components and other key indicators.Additionally,questionnaire surveys and interviews are conducted in the township,along with investigations into existing records and other relevant information.The study adopts the solid waste management-greenhouse gas(SWM-GHG)calculator to study the township data.The case study results imply that proper waste sorting and treatment methods in villages and townships could play a major role in the reduction of carbon emission.Specifically,after implementing waste sorting in Xiao'er,annual carbon emissions were reduced by 2081 tons—equivalent to the electricity consumption of a family of three people for 1718 years,or the amount of CO_(2)emitted by 2641.6L vehicles driving once around the Earth.In the optimal scenario simulation,increasing the recycling of wet waste and recyclable waste further,the level of carbon emission reduction in Xiao'er could reach up to 4482 tons per year.According to the international general carbon trade price,this is equivalent to adding 44,820 US dollars to the GDP,or to an annual saving of 5.71 million kWh.If these waste management methods are expanded to villages and townships across China,then the carbon emissions reduced in a year would be equal to the CO_(2)emitted from electricity generation in Beijing for over a year.Based on these findings,this paper provides three policy recommendations for effective carbon emission reduction:increasing residents'environmental protection awareness over the long term,boosting funding support and enhancing the construction of supporting facilities,and strengthening governance and institutional capacity for waste sorting and treatment. | Hongping Lian Dechuan Wang Hui Li | 2020 | Chinese Journal of Population,Resources and Environment2020，18，1： | 0 |
| 12 | Remarkable enhancement of gas selectivity on organosilica hybrid membranes using urea-modulated metal-organic framework nanoparticles显示文摘Metal-organic framework/organosilica hybrid membranes on tubular ceramic substrates have shown great potential for the implementation of membrane technology in practical gas separation projects due to their higher permeance compared to commercial polymers.However,the selectivities of the reported membranes are moderate.Here,we have incorporated urea-modulated metal-organic frameworks into organosilica membranes to greatly enhance its separation performance.The urea-modulated metal-organic frameworks exhibit less-defined edges of crystallographic facets and high defect density.They can be well-dispersed in the organosilica layer,which substantially suppresses the interfacial defects between metal-organic frameworks and organosilica,which is beneficial for improving the selectivity of membranes for gas separation.The results have shown that the enhanced ideal selectivity of H_(2)/CH_(4) was 165 and that of CO_(2)/CH_(4) was 43,with H_(2) permeance of about 1.25×10^(−6) mol·m^(−2)·s^(−1)·Pa^(−1) and CO_(2) permeance of 3.27×10^(−7) mol·m^(−2)·s^(−1)·Pa^(−1) at 0.2 MPa and 25℃.In conclusion,the high level of hybrid membranes can be used to separate H_(2)(or CO_(2))from the binary gas mixture H_(2)/CH_(4)(or CO_(2)/CH_(4)),which is important for gas separation in practical applications.Moreover,the simple and feasible modulation of metal-organic framework is a promising strategy to tune different metal-organic frameworks for membranes according to the actual demands. | Yayun Zhao Dechuan Zhao Chunlong Kong Yichao Lin Xuezhen Wang Liang Chen | 2024 | Frontiers of Chemical Science and Engineering2024，18，2： | 0 |
| 13 | A Patient-Specific Computational Fluid Dynamic Model of Middle Cerebral Artery Aneurysm Before and One Year After Surgery显示文摘Computational fluid dynamics(CFD)has been widely used for studying intracranial aneurysm hemodynamics,while its use for guiding clinical strategy is still in development.In this study,CFD simulations helped inform treatment decision for a middle cerebral artery(MCA)aneurysm case was investigated.A patient with a 10.4×9.8 mm aneurysm attached with a small aneurysm at the edge of the trifurcation in the left MCA was included in this study.For removing the MCA aneurysm,two scenarios were considered:Plan-A involved clipping the small aneurysm and Plan-B involved clipping the whole aneurysm.A suitable treatment plan was decided by comparing the clinical measurements and CFD analysis between these two plans.One-year after the surgery,the CFD analysis was conducted again on the post-operative aneurysm model to verify the selected surgical plan in terms of morphometric and hemodynamic properties changes in the aneurysm.Based on the CFD simulation and clinical experience,surgical Plan-A was adopted.One-year after the surgery,both the hemodynamic and morphological properties improved in the post-operative aneurysm model,indicating the recovery of the patient.The patient-specific aneurysm CFD analysis can help to determine a better surgical plan for patients with special cerebral aneurysms.This study showed how CFD analysis can be used to aid clinical diagnosis and treatment. | Shicheng He Juhui Qiu Wanling Liu Tieying Yin Dechuan Zhang Donghua Liao Haijun Zhang Yuxia Yin Guixue Wang | 2020 | Molecular & Cellular Biomechanics2020，17，2： | 0 |
| 14 | Longwave infrared multispectral image sensor system using aluminum-germanium plasmonic filter arrays Noor E显示文摘A multispectral camera records image data in various wavelengths across the electromagnetic spectrum to acquire additional information that a conventional camera fails to capture.With the advent of high-resolution image sensors and color filter technologies,multispectral imagers in the visible wavelengths have become popular with increasing commercial viability in the last decade.However,multispectral imaging in longwave infrared(LWIR,8-14μm)is still an emerging area due to the limited availability of optical materials,filter technologies,and high-resolution sensors.Images from LWIR multispectral cameras can capture emission spectra of objects to extract additional information that a human eye fails to capture and thus have important applications in precision agriculture,forestry,medicine,and object identification.In this work,we experimentally demonstrate an LWIR multispectral image sensor with three wavelength bands using optical elements made of an aluminum(Al)-based plasmonic filter array sandwiched in germanium(Ge).To realize the multispectral sensor,the filter arrays are then integrated into a three-dimensional(3D)printed wheel stacked on a low-resolution monochrome thermal sensor.Our prototype device is calibrated using a blackbody and its thermal output has been enhanced with computer vision methods.By applying a state-of-theart deep learning method,we have also reconstructed multispectral images to a better spatial resolution.Scientifically,our work demonstrates a versatile spectral thermography technique for detecting target signatures in the LWIR range and other advanced spectral analyses. | Karishma Shaik Bryce Widdicombe Dechuan Sun Sam E John Dongryeol Ryu Ampalavanapillai Nirmalathas Ranjith R Unnithan | 2023 | Nano Research2023，16，7： | 0 |
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