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| 1 | Effects of culm carbohydrate partitioning on basal stem strength in a high-yielding rice population显示文摘Rice culm carbohydrate transport can simultaneously affect grain filling and stem lodging resistance by regulating non-structural carbohydrate(NSC) and structural carbohydrate(SC) contents. However, the relationship between carbohydrate transposition and culm strength is not well documented. Accordingly, a high-yielding hybrid rice cultivar(Y Liangyou 2) was tested under different N fertilization regimes at two locations, Taoyuan(a special high-yield eco-site), Yunnan province and Danyang(a representative eco-site of the middle and lower Yangtze), Jiangsu province, China. Significantly higher grain yield and basal stem strength were found at Taoyuan than Danyang under all N rates throughout the two-year experiment. At heading stage, soluble sugars, starch, cellulose and lignin contents of the basal culm at Taoyuan were significantly 132.0%, 73.7%, 1.2%, and 62.7% higher than those at Danyang, respectively. At 20 days after heading, soluble sugars and starch content at Taoyuan decreased significantly compared to Danyang, but lignin content remained higher. Culm carbohydrate transport to kernels at Taoyuan was significantly greater than that at Danyang, and the proportion of soluble sugars and starch was correspondingly 62.9%lower. However, the proportion of lignin and cellulose was 22.7% higher at Taoyuan than that at Danyang. Soluble sugars and starch partitioning were significantly reduced under an increased nitrogen application rate, but SC partitioning was little affected. There were significant positive correlations between basal culm bending stress and dry weight and cellulose and lignin proportions at both locations under all N rates, suggesting that the higher SC proportion at 20 days after heading was primarily responsible for culm strength.These results suggest that high-yielding rice populations with greater culm strength require both moderate NSC transport and greater SC accumulation. | Jun Zhang Ganghua Li Qingyu Huang Zhenghui Liu Chengqiang Ding She Tang Lin Chen Shaohua Wang Yanfeng Ding Weijian Zhang | 2017 | The Crop Journal2017,5,6: | 13 |
| 2 | Methane emissions from rice fields under continuous straw return in the middle-lower reaches of the Yangtze River显示文摘A three-year experiment was conducted in the middle-lower reaches of the Yangtze River in China to study the influence of continuous wheat straw return during the rice season and continuous rice straw return in wheat on methane (CH 4 ) emissions from rice fields in which, the rice-wheat rotation system is the most dominant planting pattern. The field experiment was initiated in October 2009 and has continued since the wheat-growing season of that year. The analyses for the present study were conducted in the second (2011) and third (2012) rice growing seasons. Four treatments, namely, the continuous return of wheat straw and rice straw in every season (WR), of rice straw but no wheat straw return (R), of wheat straw but no rice straw return (W) and a control with no straw return (CK), were laid out in a randomized split-plot design. The total seasonal CH 4 emissions ranged from 107.4 to 491.7 kg/ha (2011) and 160.3 to 909.6 kg/ha (2012). The increase in CH 4 emissions for treatments WR and W were 289% and 230% in the second year and 185% and 225% in the third year, respectively, in relation to CK. We observed less methane emissions in the treatment R than in CK by 14%-43%, but not statistically significant. Treatment R could increase rice productivity while no more CH 4 emission occurs. The difference in the total CH 4 emissions mainly related to a difference in the methane flux rate during the first 30-35 days after transplant in the rice growing season, which was caused by the amount of dissolved oxygen in paddy water and the amount of reducible soil materials. | Pengfu Hou Ganghua Li Shaohua Wang Xin Jin Yiming Yang Xiaoting Chen Chengqiang Ding Zhenghui Liu Yanfeng Ding | 2013 | Journal of Environmental Sciences2013,25,9: | 10 |
| 3 | Fiber-shaped organic electrochemical transistors for biochemical detections with high sensitivity and stability显示文摘Precise and continuous monitoring of biochemicals by biosensors assists to understand physiological functions for various diagnostics and therapeutic applications.For implanted biosensors,small size and flexibility are essential for minimizing tissue damage and achieving accurate detection.However,the active surface area of sensor decreases as the sensor becomes smaller,which will increase the impedance and decrease the signal to noise ratio,resulting in a poor detection limit.Taking advantages of local amplification effect,organic electrochemical transistors(OECTs)constitute promising candidates for high-sensitive monitoring.However,their detections in deep tissues are rarely reported.Herein,we report a family of implantable,fiber-shaped all-in-one OECTs based on carbon nanotube fibers for versatile biochemical detection including H2O2,glucose,dopamine and glutamate.These fiber-shaped OECTs demonstrated high sensitivity,dynamical stability in physiological environment and antiinterference capability.After implantation in mouse brain,7-day dopamine monitoring in vivo was realized for the first time.These fiber-shaped OECTs could be great additions to the'life science'tool box and represent promising avenue for biomedical monitoring. | Xiaoying Wu Jianyou Feng Jue Deng Zhichang Cui Liyuan Wang Songlin Xie Chuanrui Chen Chengqiang Tang Zhengqi Han Hongbo Yu Xuemei Sun Huisheng Peng | 2020 | Science China Chemistry2020,63,9: | 3 |
| 4 | Effects of rice or wheat residue retention on the quality of milled japonica rice in a rice–wheat rotation system in China显示文摘In rice–wheat rotation systems, crop straw is usually retained in the field at land preparation in every, or every other, season. We conducted a 3-year-6-season experiment in the middle–lower Yangtze River Valley to compare the grain qualities of rice under straw retained after single or double seasons per year. Four treatments were designed as: both wheat and rice straw retained(WR), only rice straw retained(R), only wheat straw retained(W), and no straw retained(CK). The varieties were Yangmai 16 wheat and Wuyunjing 23 japonica rice. The results showed contrasting effects of W and R on rice quality. Amylopectin content, peak viscosity, cool viscosity, and breakdown viscosity of rice grain were significantly increased in W compared to the CK, whereas gelatinization temperature,setback viscosity, and protein content significantly decreased. In addition, the effect of WR on rice grain quality was similar to that of W, although soil fertility was enhanced in WR due to straw being retained in two cycles. The differences in protein and starch contents among the treatments might result from soil nitrogen supply. These results indicate that wheat straw retained in the field is more important for high rice quality than rice straw return, and straw from both seasons is recommended for positive effects on soil fertility. | Pengfu Hou Yanfeng Ding Guofa Zhang Quan Li Shaohua Wang She Tang Zhenghui Liu Chengqiang Ding Ganghua Li | 2015 | The Crop Journal2015,3,1: | 2 |
| 5 | Biomedical polymers: synthesis, properties, and applications显示文摘Biomedical polymers have been extensively developed for promising applications in a lot of biomedical fields, such as therapeutic medicine delivery, disease detection and diagnosis, biosensing, regenerative medicine, and disease treatment. In this review, we summarize the most recent advances in the synthesis and application of biomedical polymers, and discuss the comprehensive understanding of their property-function relationship for corresponding biomedical applications. In particular, a few burgeoning bioactive polymers, such as peptide/biomembrane/microorganism/cell-based biomedical polymers, are also introduced and highlighted as the emerging biomaterials for cancer precision therapy. Furthermore, the foreseeable challenges and outlook of the development of more efficient, healthier and safer biomedical polymers are discussed. We wish this systemic and comprehensive review on highlighting frontier progress of biomedical polymers could inspire and promote new breakthrough in fundamental research and clinical translation. | Wei-Hai Chen Qi-Wen Chen Qian Chen Chunyan Cui Shun Duan Yongyuan Kang Yang Liu Yun Liu Wali Muhammad Shiqun Shao Chengqiang Tang Jinqiang Wang Lei Wang Meng-Hua Xiong Lichen Yin Kuo Zhang Zhanzhan Zhang Xu Zhen Jun Feng Changyou Gao Zhen Gu Chaoliang He Jian Ji Xiqun Jiang Wenguang Liu Zhuang Liu Huisheng Peng Youqing Shen Linqi Shi Xuemei Sun Hao Wang Jun Wang Haihua Xiao Fu-Jian Xu Zhiyuan Zhong Xian-Zheng Zhang Xuesi Chen | 2022 | Science China Chemistry2022,65,6: | 2 |
| 6 | Denitrification removal of nitric oxide in a rotating drum biofilter显示文摘 | Jiade Wang Chengqiang Wu Jianmeng Chen Haijie Zhang | 2006 | Chemical Engineering Journal2006,,1: | 1 |
| 7 | Productivity Spillovers from Foreign Direct Investment : Evidence from UK Industry Level Panel Data 显示文摘 | LIU XIAMING PAMELA S WANG CHENGQIANG etal | 2000 | Journal of International Business Studies2000,,31: | 1 |
| 8 | Experimental studies on corrosion of cement in CO 2 injection wells under supercritical conditions显示文摘 | Lin Yuanhua Zhu Dajiang Zeng Dezhi Yang Yuanguang Shi Taihe Deng Kuanhai Ren Chengqiang Zhang Deping Wang Feng | 2013 | Corrosion Science2013,,: | 1 |
| 9 | Performance evaluation of biofihers packed with carbon foam and lava for nitric oxide removal显示文摘 | JIANMENG CHEN CHENGQIANG WU JIADE WANG JIANFENG MA | 2006 | Journal of Hazardous Materials2006,137,: | 1 |
| 10 | Observation of electron–phonon coupling and linear dichroism in PL spectra of ultra-small CsPbBr3 nanoparticle solution显示文摘Blue-emission(~480 nm)CsPbBr3 nanoparticles with ultra-small size(~2.1 nm)are synthesized using the liquid nitrogen freezing with the ligand of dodecylbenzene sulfonic acid(DBSA).Asymmetric narrow emissions at the low energy side,with the full width at half-maximum of~20 nm,are observed in solution and film at room temperature.The spectral asymmetry is mainly ascribed to phonon vibronic replica with averaged phonon energy of~40 meV.Moreover,exciting this CsPbBr3 nanoparticles solution using linearly polarized 6 ns pulsed laser at 355 nm,we observe polarized emission with polarization degree(PPL)of~7%,and PPL decreases more than 20%in the vibronic progression.However,the PPL goes to zero in frozen solutions as well as in films.Thus we speculate the polarized emission is due to the photoinduced re-alignment of nanoparticles,and the diminished PPL at the phonon side band may be due to the non-adiabatic electronic-to-vibronic transitions.The novel phenomena from the ultra-small CsPbBr3 nanoparticle demonstrated in this work may provide fundamental insights into its photophysics with direct implications for optoelectronics. | Chengqiang Wang Tao Song Pingyuan Yan Shu Hu Chenhong Xiang Zihan Wu Heng Li Haibin Zhao Lili Han Chuanxiang Sheng | 2023 | eScience2023,3,6: | 0 |
| 11 | Long-term In Vivo Monitoring of Chemicals with Fiber Sensors显示文摘Long-term in vivo monitoring of chemicals with implanted sensors has received considerable interests over the past decades owing to their significant contributions in reflecting health conditions and assistance in diagnosing diseases.However,the widely explored chemical sensors outside the body fail to meet the requirements of in vivo applications.This perspective reviews main challenges,recent advances and future directions of long-term in vivo monitoring of chemicals,related to immune response and sensing performance.Challenges in terms of the immune response caused by unstable interfaces between sensors and tissues and improper implanting methods,and the insufficient performance of chemical sensors in complex physiological environment are discussed.Therewith,recent advances in fabricating biocompatible,flexible and thin sensors,developing effective implanting methods with reduced injury and improving the sensitivity,selectivity and stability of chemical sensors for accurate monitoring in vivo are summarized.Finally,we propose the future directions to address these challenges by fiber chemical sensors through the combination of soft fiber configuration,facile implanting methods and new recognition elements,which will provide new platforms for health monitoring and physiological mechanism revealing. | Jiajia Wang Liyuan Wang Jianyou Feng Chengqiang Tang Xuemei Sun Huisheng Peng | 2021 | Advanced Fiber Materials2021,3,1: | 0 |
| 12 | Thermal Resistance Simulation for CoF Packages显示文摘Chip-on-Film(Co F) is a packaging technology that mounts Integrated Circuits(IC) chips directly on a flexible substrate surface. As both power and the number of pins in such packages increase, thermal conditions become more important. In this paper, the thermal resistance of Co F packages is studied using Ansys software to perform finite-element analysis. Because of circuit complexity, two equivalent methods—a length-weighted method and an image-recognition method—are proposed in place of an accurate model to get equivalent thermal conductivity of Co F package devices. In our experiments, the simulated value of thermal resistance based on the length-weighted method was 1.653 K/W, and the value based on the image-recognition method was 1.911 K/W. The real thermal resistance value of the Co F package device is 1.812 K/W. So the error between the real value measured by a tester and the simulated value based on the length-weighted method is 8.8%, and the error between the real value and the simulated value based on the image-recognition method is 5.5%. Hence, both methods can provide effective simulation results, and the image-recognition method is more accurate. In addition, we optimized the Co F package structure. From the simulation results, the drop in thermal resistance after the optimization is obvious. | Chuan Chen Qian Wang Xiaotian Meng Lin Tan Jian Wang Chengqiang Cui Jian Cai | 2015 | Tsinghua Science and Technology2015,20,3: | 0 |
| 13 | Influence of Steam and Sulfide on High Temperature Selective Catalytic Reduction显示文摘The influences of steam and sulfide on the efficiency of NOx reduction using ammonia(NH_(3))over the nanometer-class V-W/Ti catalyst in conditions of high temperature is experimentally investigated using a steady-flow reactor.The results showed that selective catalytic reduction(SCR)is inhibited by H_(2)O at low temperature,but higher NO conversion efficiency is achieved at high temperature since the reaction of NH_(3) oxidized by O_(2) to NOx is inhibited by H_(2)O.The activity of SCR is promoted by SO_(2) in the temperature range of 200~500℃,the NO conversion efficiency was improved to 98%from 94%by adding SO_(2).SCR would be improved at 350~500℃ when H_(2)O and SO_(2) exist at the same time.Furthermore,the positive influence to the NOx conversion was proved in the presence of H_(2)O and SO_(2) as a result of the European Stationary Cycle test. | Jiyuan Zhang Linbo Wang Chengqiang Zhang Shuzhan Bai | 2020 | Fluid Dynamics & Materials Processing2020,16,3: | 0 |
| 14 | A dynamically stable self-healable wire based on mechanical-electrical coupling显示文摘The rise in wearable electronics has witnessed the advancement of self-healable wires,which are capable of recovering mechanical and electrical properties upon structural damage.However,their highly fluctuating electrical resistances in the range of hundreds to thousands of ohms under dynamic conditions such as bending,pressing,stretching and tremoring may seriously degrade the precision and continuity of the resulting electronic devices,thus severely hindering their wearable applications.Here,we report a new family of self-healable wires with high strengths and stable electrical conductivities under dynamic conditions,inspired by mechanical-electrical coupling of the myelinated axon in nature.Our self-healable wire based on mechanical-electrical coupling between the structural and conductive components has significantly improved the electrical stability under dynamic scenarios,enabling precise monitoring of human health status and daily activities,even in the case of limb tremors from simulated Parkinson’s disease.Our mechanical-electrical coupling strategy opens a new avenue for the development of dynamically stable electrodes and devices toward real-world wearable applications. | Shuo Wang Zhaofeng Ouyang Shitao Geng Yan Wang Xiaoju Zhao Bin Yuan Xiao Zhang Qiuchen Xu Chengqiang Tang Shanshan Tang Han Miao Huisheng Peng Hao Sun | 2024 | National Science Review2024,11,3: | 0 |
| 15 | Dose escalation guided by^(18)F-FDG PET/CT for esophageal cancer显示文摘Objective:To assess the feasibility of dose escalation guided by ^(18)F-deoxyglucose positron emission tomography/computer tomography(^(18)F-FDG PET/CT)for esophageal cancer(EC).Methods and materials:Ten random patients treated with definitive chemoradiotherapy and pre-therapeutic ^(18)FFDG PET/CT were included in this study.Retrospectively,a threshold of 50%of SUVmax was used to define the high FDG uptake region of the GTV(GTVPET).Three intensity-modulated radiation therapy(IMRT)plans were generated,delivering three dose levels to three different planning target volumes(PTVs).50.4 Gy delivered to PTV50.4 was defined on computed tomography(CT)as Plan50.4,63 Gy was delivered to PTV63 was defined as GTV plus a uniform margin of 0.5 cm as Plan63,and 70 Gy delivered to PTV70 was defined as GTVPET plus a 0.5 cm margin as Plan70.A dosimetric comparison was performed based on normal tissue complication probability(NTCP)for the lung and heart.Results:Clinically acceptable dose escalation failed for 2 of 10 patients in Plan63 due to heart dose constraints.One patient failed heart dose constraint for Plan70.Two patients failed spinal cord constraint for Plan63.Three patients failed lung dose constraints for both Plan63 and Plan70,two of which were even not suitable for Plan50.4 for the same reason.NTCP modeling for lung showed increased risk for Plan63 and Plan70 compared to Plan50.4.The difference between Plan63 and Plan70 was insignificant.NTCP modeling for heart showed an increased risk from 6.38%of Plan50.4 to 8.88%of Plan70(P=0.009)or 9.79%of Plan63(P=0.007).The risk of heart mortality was significantly higher for Plan63 than Plan70(P=0.047).Conclusions:Selective boosting of sub-volumes based on ^(18)F-FDG PET/CT is feasible way with a modest increase in the risk of cardiac and lung toxicities. | Bingjie Fan Chengqiang Li Fengchun Mu Wenru Qin Linlin Wang Xindong Sun Chunni Wang Bing Zou Shijiang Wang Wanlong Li Man Hu | 2021 | Radiation Medicine and Protection2021,2,2: | 0 |
| 16 | Piezoelectrically Mediated Reactions:From Catalytic Reactions to Organic Transformations显示文摘Recently,piezocatalysis has attracted considerable attention as a new type of renewable mechanical energy conversion technology,which relies on the strain induced polarization of the piezoelectric material.This new technology has been extensively applied in the applications of water splitting,water remediation,gas purification and tumor therapy.Despite the rapid development in the piezo-catalysis,the utilization of piezoelectric materials for synthetic purpose is still under exploration.Piezoelectric means to promote or-ganic reactions expand the scope of piezoelectrically mediated reactions and show successes in both organic and polymer synthesis.Herein,we provide a comprehensive review on recent progress of piezoelectrically mediated reactions,catalytic mechanisms and applications in the last few years.The limitations and future directions of this area are also discussed.We believe this review will provide new insights into the underlying mechanism of piezoelectric mediated electron transfer process and guide the design of new chemistry. | Ziye Ren Yuhao Peng Hanliang He Chengqiang Ding Jialin Wang Zhao Wang Zhengbiao Zhang | 2023 | Chinese Journal of Chemistry2023,41,1: | 0 |
| 17 | Aptasensing biosynthesized phosphatidylserine with a AuNPs nanozyme-based colorimetric aptasensor显示文摘Sensitive monitoring of the target products during the biosynthesis process is crucial,and facile analytical approaches are urgently needed.Herein,phosphatidylserine(PS)was chosen as the model target,a colorimetric aptasensor was developed for the rapid quantitation in biosynthesis samples.A chimeric aptamer was constructed with two homogeneous original PS aptamers.Specific recognition between the chimeric aptamer and PS results in the desorption of aptamer from the surface of the AuNPs nanozyme,and the peroxidase-like enzymatic activity of the AuNPs nanozyme was weakened in a relationship with the different concentrations.The developed aptasensor performed well when applied for analyzing PS in biosynthesis samples.The aptasensor offers good sensitivity and selectivity,under optimal conditions,achieving monitoring and quantitation of PS in the range of 2.5-80.0μmol/L,with a limit of detection at 536.2 nmol/L.Moreover,the aptasensor provides good accuracy,with comparison rates of 98.17%-106.40%,when compared with the HPLC-ELSD.This study provides a good reference for monitoring other biosynthesized products and promoting the development of aptamers and aptasensors in real-world applications. | Sai Wang Rui Ma Chengqiang Li Ling Zhang Haiyang Zhang Xuehan Li Xiangzhao Mao | 2024 | Food Science and Human Wellness2024,13,2: | 0 |
| 18 | Evolution of the North Atlantic Current and Barents Ice Sheet as revealed by grain size populations in the northern Norwegian Sea during the last 60 ka显示文摘The grain size distribution of bulk sediment samples was decomposed in a core to reconstruct paleoceanographic evolution over the past 60 ka in the northern Norwegian Sea.The results show that sediments consisted of 3–4 grain populations derived from the North Atlantic Current(NAC)and Barents Ice Sheet(BIS).The grain size data suggest three palaeoceanographic evolution stages:(1)an environment affected by BIS and NAC and changed with the interstadial/stadial transition in phase with the Greenland ice-core record at 60–31 ka BP,during which discharge of icebergs and the content of the coarsest population containing ice-rafted debris(IRD)in the sediments increased significantly during stadial,while the fine silt population containing volcanic glasses increased with the enhancement of NAC during the interstadial;(2)an extreme environment controlled by BIS at31–13 ka BP.BIS reached to its maximum at about 31 ka BP and the turbid plumes that formed at the leading edge of BIS contributed to a significant increase in the clayey population in sediments.Icebergs drained into the northern Norwegian Sea with periodical calving of the BIS at 31–19 ka BP.Subsequently,the ablation of the BIS discharged massive floods with clayey sediments and icebergs into the Norwegian Sea at 19–13 ka BP,resulting in a constant increase in clay and IRD in sediments;and(3)a marine environment similar to the present one under the strong influence of NAC following the complete melting of the BIS after 13 ka BP,NAC is the dominant transport agent and no IRD occurred in sediments.The fine silt populations containing volcanic glasses transported by NAC significantly increased. | Weiguo Wang Mengwei Zhao Yanguang Liu Min Jiang Chengqiang Wu Yang Liu | 2021 | Acta Oceanologica Sinica2021,40,10: | 0 |
| 19 | Piezoelectric Zinc Oxides with High Polar Facets Ratios for Mechanically Controlled RAFT Polymerization显示文摘Mechanoredox chemistry that uses highly polarized piezoelectric materials as mechanoredox catalysts to promote redox reactions has emerged recently.It provides an alternative approach alongside the existing polymerization methods.Despite recent accomplishments,determining the quantitative relationship between the structure of ZnO and its catalytic performance for polymerization is still challenging.Herein,we prepared various ZnO crystals with different polar facets ratios to achieve efficient mechanically induced reversible addition-fragmentation chain transfer polymerization(mechano-RAFT).ZnO prepared from Zn(NO3)2 showed a high polar facet ratio of 1.66 and offered the highest catalytic activity among all ZnO samples.A near-quantitative initiator efficiency of 99.5%and narrow molecular weight distribution were achieved for the polymerization of n-butyl acrylate.Furthermore,the high chain-end fidelity and chain extension capability were also evidenced by MALDI-TOF MS and GPC analysis.This work highlighted the significant contribution of polar facets in ZnO to its catalytic activity and will guide the design of mechanoredox catalysis with superior catalytic performance in the future. | Chengqiang Ding Ziye Ren Jian Wang Longfei Zhang Yuhan Yan Danming Wu Zhao Wang Zhengbiao Zhang | 2023 | Chinese Journal of Chemistry2023,41,20: | 0 |