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| 1 | Catalytic oxidation of low concentration formaldehyde over Pt/TiO_(2) catalyst显示文摘Formaldehyde(HCHO) is an important indoor pollutant.Catalytic oxidize low concentration HCHO is an effective way to eliminate indoor pollution.In this study,a series of Pt/TiO_(2) catalysts are prepared by impregnation and reduced by NaBH_4.The effects of loading amount of Pt and cry stal type of TiO_(2) on the physical and chemical properties and the catalytic performance in HCHO oxidation reaction are investigated.The results show that the quantity of active site and the oxygen vacancy of catalysts increa sed with increasing Pt content,which is beneficial to promote the further performance of catalysts.Nevertheless,with the further rises of Pt content,the specific surface area further decreases,and the proportion of Pt^(2+) species on the catalyst surface which is significant to catalytic properties also decreases,causing catalytic performance decreases.Compared with the catalyst supporting on rutile,the Pt/α-TiO_(2) catalyst supporting on anatase has larger specific surface area,more Pt^(2+) phase and easier to form oxygen vacancy in the support,which cause better catalytic performance.The catalyst with Pt content of0.1 wt% and supported by anatase TiO_(2) has the best catalytic performance.The HCHO conversion efficiency reaches 98% and 100% at 50℃ and 100 ℃, and the stabilization time is longer than 140 h. | Yuan Su Keming Ji Jiayao Xun Kan Zhang Ping Liu Liang Zhao | 2021 | Chinese Journal of Chemical Engineering2021，34，1： | 6 |
| 2 | Reduced dose of Bacillus Calmette-Guérin versus full dose of Bacillus Calmette-Guérin for non-muscle-invasive bladder cancer after transurethral resection bladder tumor: a meta-analysis of randomized controlled trials显示文摘 | Qin Xin Wu Keming Xie Libo Zhao Sixiu Lu Yiping | 2014 | Chinese Medical Journal2014，，22： | 4 |
| 3 | Research on Critical Flow of Water under Supercritical Pressures in Nozzles显示文摘 | Yuzhou Chen Minfu Zhao Chunsheng Yang Keming Bi Kaiwen Du Shuming Zhang | 2012 | Journal of Energy and Power Engineering2012，6，2： | 3 |
| 4 | The geometric simulation and analysis of the blind growth fold in the overthrust belt of the southern section of the frontier Longmen Mt.during Late Triassic显示文摘The seismic profiles processed by high-resolution display that a blind growth fault-bend fold emerges in depth of seismic exploration area in Dayi in the southern section of the frontier Longmen Mt.This paper presents a detailed structural interpretation to seismic section,then describes the deformed geometry related to the pre-growth strata,the growth strata and the post-growth strata on both limbs of the fold.The computer geometric simulation,based on the model of fault-bend fold,is utilized to stimulate the geometry of the blind growth fold at different sedimentation rates in Dayi.These structural features are subsequently extracted and compared with the actual seismic reflection section.Our research suggests that a low angle overthrust formed during Late Triassic also appears in the southern section of the frontier Longmen Mt.The event of structure took place at the depositional stage of a portion of the middle and upper fourth member of Xujiahe Formation(T3x4),which corresponds to thrusting in the northern section of the frontier Longmen Mt.However,the thrusting displacement here is smaller than one of the northern section. | CHEN Wei YANG KeMing LI ShuBin JIAN GaoMing TANG Jin ZHAO Yiao SU Qian | 2009 | Chinese Science Bulletin2009，54，8： | 3 |
| 5 | Ecophysiological responses of two closely related Magnoliaceae genera to seasonal changes in subtropical China显示文摘Aims Plants use a variety of hydraulic strategies to adapt to seasonal drought that differ by species and environmental conditions.The early-diverging Magnoliaceae family includes two closely related genera with contrasting leaf habits,Yulania(deciduous)and Michelia(evergreen),which naturally inhabit temperate and tropi-cal regions,respectively.Here,we evaluate the hydraulic strategy of species from both genera that have been ex situ conserved in a subtropical region to determine how they respond to the novel cool-dry season climatic pattern.Methods We measured ecophysiological traits in five Michelia and five Yulania species conserved in the South China Botanical Garden in both wet and dry season conditions and monitored the whole-year sap flow for four of these species.Important Findings We found that Magnoliaceae species that have been ex situ con-served in a subtropical climate did not suffer from excessive water stress due to the mild drought conditions of the dry season and the ecophysiological adjustments the species made to avoid this stress,which differed by leaf habit.Specifically,deciduous species com-pletely shed their leaves during the dry season,while evergreen species decreased their turgor loss points,dry mass based photo-synthetic rates,stomatal conductance and specific leaf areas(SLAs)compared to wet season measurements.In comparing the two dis-tinct leaf habits during the wet season,the leathery-leaved evergreen species had higher leaf hydraulic conductance and leaf to sapwood area ratios than the papery-leaved deciduous species,while the deciduous species had greater hydraulic conductivity calculated on both a stem and leaf area basis,dry mass based photosynthetic rates,leaf nutrients,SLAs and stomatal sizes than the evergreen species.Interestingly,species from both genera maintained similar sap flow in the wet season.Both photosynthetically active radia-tion and vapour pressure deficit affected the diurnal patterns of sap flow in the wet season,while only vapour pressure deficit played a dominant role in the dry season.This study reveals contrasting hydraulic strategies in Yulania and Michelia species under subtropi-cal seasonal conditions,and suggests that these ecophysiological adjustments might be affected more by leaf habit than seasonality,thus reflecting the divergent evolution of the two closely related genera.Furthermore,we show that Magnoliaceae species that are ex situ conserved in a subtropical climate are hydraulically sound,a finding that will inform future conservation efforts of this ancient family under the threat of climatic change. | Hui Liu Liwei Zhu Qiuyuan Xu Marjorie R.Lundgren Keming Yang Ping Zhao Qing Ye | 2018 | Journal of Plant Ecology2018，11，3： | 2 |
| 6 | Expulsion and primary migration of the oil derived from coal显示文摘 | Zhao Changyi Cheng Keming | 1998 | Science in China: Series D1998，41，4： | 1 |
| 7 | Therapeutic mechanisms of Tongmai Dasheng Tablet on tripterygium glycosides induced rat model for premature ovarian failure显示文摘 | Yu Fu Zhengang Zhao Yeke Wu Keming Wu Xiaouan Xu Yue Liu Chongyi Tong | 2011 | Journal of Ethnopharmacology2011，，1： | 1 |
| 8 | Critical Heat Flux with Subcooled Flowing Water in Tubes for Pressures from Atmosphere to Near-Critical Point显示文摘 | Yuzhou Chen Keming Bi Minfu Zhao Chunsheng Yang Kaiwen Du | 2016 | Journal of Energy and Power Engineering2016，10，4： | 1 |
| 9 | The Relationships of Urbanization to SurfaceWater Quality in Four Lakes of Hanyang, China显示文摘 | Yang Liu Ma Keming Zhao Jingzhu Bai Xue and GuoQinghai | 2007 | In-ternational Journal of Sustainable Development & WorldEcology2007，14，3： | 1 |
| 10 | Development and application of molecular markers for TSW(thousand-seed weight)related gene BnaGRF7.C02 in Brassica napus显示文摘Brassica napus L(rapeseed)is one of the most important oil crops with large cultivated area in China.Seed size and seed weight play crucial roles for yield and harvest.In this study,a type of 15 bp-deletion in BnaGRF7.CO2 coding region was identified through sequence alignment of BnaGRF7.C02 in 42 rapeseed varieties,and associ-ation analysis indicated that the 15 bp-deletion was related to the rapeseed Thousand-Seed Weight(TSW)phenotype.Furthermore,we developed two InDel markers to identify this 15 bp InDel.The tissue-specific expression patterns showed that BnaGRF7.C02 prominently expressed in the late stage of seed development.These findings may assist in InDel markers-based breeding efforts to select higher TWS varieties and improve the crop yield of B.nqpus. | Jing Zhao Chanyu Jin Rui Geng Yixuan Xue Minqiang Tang Keming Zhu Yulong Li Duoduo Wang Shengyi Liu Xiaoli Tan | 2021 | Oil Crop Science2021，6，3： | 0 |
| 11 | Detection of Target Genes in Viable Bacteria and Extracellular DNA Using Loop-Mediated Isothermal Amplification Assay显示文摘When the loop-mediated isothermal amplification(LAMP)assay is used for detecting target genes,DNA extraction is unnecessary in many cases.Simple pretreatment(e.g.heating)is enough to obtain rather sensitive responses.Even test samples without any pretreatment can be used as template.This feature suggests that LAMP is superior to PCR in developing point-of-care test strategies.In this study,using Stx1 gene from E.coli as model,we verified that viable cells,dead cells and extracellular DNA could function as template in the LAMP assay.In the incubation at 63℃,viable bacteria in the LAMP reaction mixture lysed completely within 2 min,providing DNA template for nucleic acid amplification.The Stx1 gene in diluted culture medium,spiked tap water,spiked seawater and real seawater all could be detected,with or without the step of DNA extraction.We found that the complex substances in real sample(e.g.natural seawater)exhibited considerable inhibitory effect on the sensitivity of the LAMP assay.These outcomes are meaningful for building a point-of-care strategy by employing the LAMP assay for environmental monitoring,bio-resource surveys,food safety,etc.in particular those based on environmental DNA. | YANG Qianqian ZHANG Xuzhi JIANG Xiaoyu LI Yang ZHAO Jun HAO Zhihui WANG Pingping QU Keming | 2020 | 渔业科学进展2020，41，2： | 0 |
| 12 | Evolution of Meteorological Conditions during a Heavy Air Pollution Event under the Influence of Shallow Foehn in Urumqi, China显示文摘The air pollution in Urumqi which is located on the northern slope of the Tianshan Mountains in northwestern China,is very serious in winter.Of particular importance is the influence of terrain-induced shallow foehn,known locally as elevated southeasterly gale(ESEG).It usually modulates atmospheric boundary layer structure and wind field patterns and produces favorable meteorological conditions conducive to hazardous air pollution.During 2013-17,Urumqi had an average of 50 d yr-1 of heavy pollution(daily average PM2.5 concentration>150μg m-3),of which 41 days were in winter.The majority(71.4%)of heavy pollution processes were associated with the shallow foehn.Based on microwave radiometer,wind profiler,and surface observations,the surface meteorological fields and boundary layer evolution during the worst pollution episode in Urumqi during 16-23 February 2013 are investigated.The results illustrate the significant role of shallow foehn in the building,strengthening,and collapsing of temperature inversions.There were four wind field patterns corresponding to four different phases during the whole pollution event.The most serious pollution phase featured shallow foehn activity in the south of Urumqi city and the appearance of an intense inversion layer below 600 m.Intense convergence caused by foehn and mountain-valley winds was sustained during most of the phase,resulting in pollutants sinking downward to the lower boundary layer and accumulating around urban area.The key indicators of such events identified in this study are highly correlated to particulate matter concentrations and could be used to predict heavy pollution episodes in the feature. | Xia LI Keming ZHAO Shiyuan ZHONG Xiaojing YU Zhimin FENG Yuting ZHONG Ayitken MAULEN Shuting LI | 2023 | Advances in Atmospheric Sciences2023，40，1： | 0 |
| 13 | Learning Scalable Task Assignment with Imperative-Priori Conflict Resolution in Multi-UAV Adversarial Swarm Defense Problem显示文摘The multi-UAV adversary swarm defense(MUASD)problem is to defend a static base against an adversary UAV swarm by a defensive UAV swarm.Decomposing the problem into task assignment and low-level interception strategies is a widely used approach.Learning-based approaches for task assignment are a promising direction.Existing studies on learning-based methods generally assume decentralized decision-making architecture,which is not beneficial for conflict resolution.In contrast,centralized decision-making architecture is beneficial for conflict resolution while it is often detrimental to scalability.To achieve scalability and conflict resolution simultaneously,inspired by a self-attention-based task assignment method for sensor target coverage problem,a scalable centralized assignment method based on self-attention mechanism together with a defender-attacker pairwise observation preprocessing(DAP-SelfAtt)is proposed.Then,an imperative-priori conflict resolution(IPCR)mechanism is proposed to achieve conflict-free assignment.Further,the IPCR mechanism is parallelized to enable efficient training.To validate the algorithm,a variant of proximal policy optimization algorithm(PPO)is employed for training in scenarios of various scales.The experimental results show that the proposed algorithm not only achieves conflict-free task assignment but also maintains scalability,and significantly improve the success rate of defense. | ZHAO Zhixin CHEN Jie XIN Bin LI Li JIAO Keming ZHENG Yifan | 2024 | Journal of Systems Science & Complexity2024，37，1： | 0 |
| 14 | Experimental Investigation on CHF of Water Flowing in Upward Tube from Subcooled to High Quality Condition显示文摘Critical heat flux experiment is performed in a tube of 8.2mm in inner diameter with 2.4min heated length.The pressure covers the ranges from 3to 21MPa,mass flux from 963to 3 883kg/(m^2·s),and outlet quality from-0.87to 0.78.For all the condition,CHF almost goes up linearly while mass flux or inlet subcooling increases, | YANG Bing ZHAO Minfu BI Keming ZHANG Dongxu DU Kaiwen | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 15 | Contributors and potential of hydrocarbon generation of source rocks by solid-state ^(13)C NMR spectroscopy显示文摘SOLID-STATE 13C nuclear magnetic resonance (NMR) technique is an effective method to study the texture of material. Under the condition of high magnetic field (400 MHz) and by the application of cross polarization, magic angle spinning (CP/MAS), total sideband suppression (TOSS), etc., the content of different textural carbons in kerogen has been quantitatively analyzed by the solid-state 13C NMR spectroscopy of a series of kerogen of thermal simulation samples with Ro value ranging from 0.64% to 1.76%. The results show that | WANGZhaoyun, ZHAO Changyi, CHENG Keming and LU Qinghua1. Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation, Beijing 100083, China:2. University of Petroleum, Beijing, 100083 China | 1997 | Chinese Science Bulletin1997，42，6： | 0 |
| 16 | Tilted Angle Implantation of Xe Ions in potassium Titanyl Phosphate显示文摘200keV Xe ions were implanted in potassium titanyl phosphate(KTP)at deferent angles:0°,45°and 60°.The lateral spread of Xe ions in KTP was studied by Rutherford backscattering of 2.1 MeV He ions.The result is compared with the theoretical prediction.The lateral spread is found in good agreement with calculated value within 17%. | WANG Keming SHI Borong WANG Zhonglie ZHAO Qingtai LIU Xiangdong LIU Jitian LIU Yaogang | 1991 | Chinese Physics Letters1991，8，5： | 0 |
| 17 | The model of hydrocarbon generation and evolution for coal and macerals in the Tuha Basin显示文摘By means of Py-GC, 13C NMR and fluorescent analysis, the properties of hydrocarbon generation of macerals are determined, and the evolution model of hydrocarbon generation is established for macerals and coal of the Tuha Basin. There are two stages of oil generation for the coal of the Tuha Basin, whose R+o values are 0.40-0.80 and 0.90-1.20 respectively. | Changyi Zhao Keming Cheng | 1998 | Chinese Science Bulletin1998，43，21： | 0 |
| 18 | Successful Cultivation of Albino Mauremys mutica for the First Time显示文摘Artificial albino Mauremys mutica was bred by a wild female albino M.mutica(P).F1 progeny was bred by mating between albino female turtle(P)and common male turtle,and F2 progeny was bred by mating between mature F1 male turtle with albino female turtle(P).After 7-8 years of cultivation,the artificial albino M.mutica was successfully produced from the F3 progeny bred in 2007,which was the first artificial breeding of the albino M.mutica.Through the cultivation of 18 batches of 5 generations(F5),the emergence rate of albino M.mutica reached more than 85%,and it could reach 100%in some cases.A stable albino M.mutica gene was produced for the first time. | Zhenming REN Keming REN Shaoming REN Bingjing LIU Yue ZHAO | 2020 | Asian Agricultural Research2020，12，8： | 0 |
| 19 | Clinical Report on Californium-252 Neutron Intraluminal Brachytherapy Combined with External Irradiation for Cervical Carcinoma Treatment显示文摘OBJECTIVE To observe the curative effects and complications of californium-252 (252Cf) neutron intraluminal brachytherapy (IBT) combined with external irradiation (El) for treatment of cervical carcinoma. METHODS From December 2000 to December 2004, 128 cases of cervical carcinoma staged intoⅡA-ⅢB according to the International Federation of Gynecology and Obstetrics (FIGO) standards were treated with 2S2Cf neutron IBT using 8-10 Gy per fraction, once a week. The total dose at reference A point was 36-40 Gy in 4-5 fractions. From the second day after 252Cf neutron IBT treatment, the whole pelvic cavity was treated with 60Coγ-ray El, applying 2 Gy per fraction, 4 times per week. After 20-25 Gy of El, the center of the whole pelvic field was blocked with 4 cm of lead in width. The total dose of El was 45-50 Gy. RESULTS The short-term therapeutic effects were CR 95.3% and PR 4.7%. The 3 and 5-year local control rates were 93.5% and 87.9%. The overall 3-year survival rate was 87.5% and for StagesⅡandⅢ, 90.9% and 81.5% respectively; the overall 5-year survival rate was 70% and for StagesⅡandⅢ, 76.2% and 61% respectively. The rate of radiation complications was 4.7% for radiation cystitis, 7.8% for radiation proctitis, 6.3% for vagina contracture and adhesion and 5.5% for protracted radiation proctitis. CONCLUSION An combination of 252Cf neutron IBT with El for treatment of cervical carcinoma can be well -tolerated by cervical carcinoma patients. The rate of local tumor control is high and radiation complications are few. | Huanyu Zhao Keming Wang Jian Sun Xin Geng Weiming Zhang | 2006 | Chinese Journal of Clinical Oncology2006，3，5： | 0 |
| 20 | High-throughput measurements of ciprofloxacin, clomipramine and fexofenadine hydrochlorides with an 8-channel electrical titrator显示文摘High-throughput measurements of ciprofloxacin, clomipramine and fexofenadine hydrochlorides were performed by employing an automatic 8-channel electrical titrator. Silver nitrate(AgNO_3) and sodium tetraphenylborate(NaTPB) were used as titrants. When AgNO_3 was used for measuring the drugs in pure form, recoveries were 97.6%–102.0% with RSD values 1.0%; for measuring them in pharmaceutical formulations, recoveries were 96.6%–99.1% with RSD values 1.0%. Batch samples of eight could be measured simultaneously and maximally 30 measurements per minute could be completed. When Na TPB was used for measuring the drugs in pure form, the recoveries were 96.8%–102.6% with RSD values 0.8%; for measuring them in pharmaceutical formulations, the recoveries were 97.5%–102.7% with RSD values 0.9%. For all analyses, no auxiliary devices or chemicals were needed and there was no requirement for changing or cleaning working electrodes between measurements. The efficiency,accuracy and precision of the proposed method make it an alternative for routine quality control analyses. | Xuzhi Zhang Qianqian Yang Xuchang Zhang Pingping Wang Zhihui Hao Jun Zhao Keming Qu | 2018 | Chinese Chemical Letters2018，29，9： | 0 |
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