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| 1 | Effect of C/N ratio,aeration rate and moisture content on ammonia and greenhouse gas emission during the composting显示文摘Gaseous emission (N2O,CH4 and NH3) from composting can be an important source of anthropogenic greenhouse gas and air pollution.A laboratory scale orthogonal experiment was conducted to estimate the effects of C/N ratio,aeration rate and initial moisture content on gaseous emission during the composting of pig faeces from Chinese Ganqinfen system.The results showed that about 23.9% to 45.6% of total organic carbon (TOC) was lost in the form of CO2 and 0.8% to 7.5% of TOC emitted as CH4.Most of the nitrogen was lost in the form of NH3,which account for 9.6% to 32.4% of initial nitrogen.N2O was also an important way of nitrogen losses and 1.5% to 7.3% of initial total nitrogen was lost as it.Statistic analysis showed that the aeration rate is the most important factor which could affect the NH3 (p=0.0189),CH4 (p=0.0113) and N2O (p=0.0493) emissions significantly.Higher aeration rates reduce the CH4 emission but increase the NH3 and N2O losses.C/N ratio could affect the NH3 (p=0.0442) and CH4 (p=0.0246) emissions significantly,but not the N2O.Lower C/N ratio caused higher NH3 and CH4 emissions.The initial moisture content can not influence the gaseous emission significantly.Most treatments were matured after 37 days,except a trial with high moisture content and a low C/N ratio. | Tao Jiang Frank Schuchardt Guoxue Li Rui Guo Yuanqiu Zhao | 2011 | Journal of Environmental Sciences2011，23，10： | 67 |
| 2 | Effect of phosphogypsum and dicyandiamide as additives on NH_3,N_2O and CH_4 emissions during composting显示文摘A laboratory scale experiment of composting in a forced aeration system using pig manure with cornstalks was carried out to investigate the effects of both phosphogypsum and dicyandiamide (DCD, C2 H4 N4 ) as additives on gaseous emissions and compost quality. Besides a control, there were three amended treatments with different amounts of additives. The results indicated that the phosphogypsum addition at the rate of 10% of mixture dry weight decreased NH3 and CH4 emissions significantly during composting. The addition of DCD at the rate of 0.2% of mixture dry weight together with 10% of phosphogypsum further reduced the N20 emission by affecting the nitrification process. Reducing the phosphogypsum addition to 5% in the presence of 0.2% DCD moderately increased the NH3 emissions but not N20 emission. The additives increased the ammonium content and electrical conductivity significantly in the final compost. No adverse effect on organic matter degradation or the germination index of the compost was found in the amended treatments. It was recommended that phosphogypsum and DCD could be used in composting for the purpose of reducing NH3 , CH4 and N20 emissions.0ptimal conditions and dose of DCD additive during composting should be determined with different materials and composting systems in further study. | Yiming Luo Guoxue Li Wenhai Luo Frank Schuchardt Tao Jiang Degang Xu | 2013 | Journal of Environmental Sciences2013，25，7： | 28 |
| 3 | Effects of aeration method and aeration rate on greenhouse gas emissions during composting of pig feces in pilot scale显示文摘The aim of this study was to uncover ways to mitigate greenhouse gas(GHG) emissions and reduce energy consumption during the composting process. We assessed the effects of different aeration rates(0, 0.18, 0.36, and 0.54 L/(kg dry matter(dm)·min)) and methods(continuous and intermittent) on GHG emissions. Pig feces and corn stalks were mixed at a ratio of 7:1. The composting process lasted for 10 weeks, and the compost was turned approximately every 2 weeks. Results showed that both aeration rate and method significantly affected GHG emissions. Higher aeration rates increased NH3 and N2O losses,but reduced CH4 emissions. The exception is that the CH4 emission of the passive aeration treatment was lower than that of the low aeration rate treatment. Without forced aeration,the CH4 diffusion rates in the center of the piles were very low and part of the CH4 was oxidized in the surface layer. Intermittent aeration reduced NH3 and CH4 losses, but significantly increased N2 O production during the maturing periods. Intermittent aeration increased the nitrification/denitrification alternation and thus enhanced the N2 O production. Forced aeration treatments had higher GHG emission rates than the passive aeration treatment. Forced aeration accelerated the maturing process, but could not improve the quality of the end product. Compared with continuous aeration, intermittent aeration could increase the O2 supply efficiency and reduced the total GHG emission by 17.8%, and this reduction increased to 47.4% when composting was ended after 36 days. | Tao Jiang Guoxue Li Qiong Tang Xuguang Ma Gang Wang Frank Schuchardt | 2015 | Journal of Environmental Sciences2015，27，5： | 21 |
| 4 | Use of additive and pretreatment to control odors in municipal kitchen waste during aerobic composting显示文摘The effects of adding a bulking agent and chemically pretreating municipal kitchen waste before aerobic composting were studied using a laboratory-scale system. The system used20-L reactors and each test lasted 28 days. The objective was to decrease NH3 and H2S emissions during composting. The bulking agent, dry cornstalks, was mixed with the kitchen waste to give a mixture containing 15%(wet weight) bulking agent. A combined treatment was also conducted, in which kitchen waste mixed with the bulking agent was pretreated with ferric chloride(FeC l3). Less leachate was produced by the composted kitchen waste mixed with bulking agent than by the kitchen waste alone, when the materials had reached the required maturity. The presence of cornstalks also caused less H2 S to be emitted, but had little impact on the amount of NH3 emitted. The FeC l3 was found to act as an effective chemical flocculant,and its presence significantly decreased the amounts of NH3 and H2S emitted. Kitchen waste mixed with cornstalks and treated with FeC l3 emitted 42% less NH3 and 76% less H2 S during composting than did pure kitchen waste. | Jing Yuan Qingyuan Yang Zhiye Zhang Guoxue Li Wenhai Luo Difang Zhang | 2015 | Journal of Environmental Sciences2015，27，11： | 21 |
| 5 | A multicenter hospital-based diagnosis study of automated breast ultrasound system in detecting breast cancer among Chinese women显示文摘Objective: The automated breast ultrasound system(ABUS) is a potential method for breast cancer detection;however, its diagnostic performance remains unclear. We conducted a hospital-based multicenter diagnostic study to evaluate the clinical performance of the ABUS for breast cancer detection by comparing it to handheld ultrasound(HHUS) and mammography(MG).Methods: Eligible participants underwent HHUS and ABUS testing; women aged 40–69 years additionally underwent MG. Images were interpreted using the Breast Imaging Reporting and Data System(BI-RADS).Women in the BI-RADS categories 1–2 were considered negative. Women classified as BI-RADS 3 underwent magnetic resonance imaging to distinguish true-and false-negative results. Core aspiration or surgical biopsy was performed in women classified as BI-RADS 4–5, followed by a pathological diagnosis. Kappa values and agreement rates were calculated between ABUS, HHUS and MG.Results: A total of 1,973 women were included in the final analysis. Of these, 1,353(68.6%) and 620(31.4%)were classified as BI-RADS categories 1–3 and 4–5, respectively. In the older age group, the agreement rate and Kappa value between the ABUS and HHUS were 94.0% and 0.860(P<0.001), respectively; they were 89.2% and0.735(P<0.001) between the ABUS and MG, respectively. Regarding consistency between imaging and pathology results, 78.6% of women classified as BI-RADS 4–5 based on the ABUS were diagnosed with precancerous lesions or cancer; which was 7.2% higher than that of women based on HHUS. For BI-RADS 1–2, the false-negative rates of the ABUS and HHUS were almost identical and were much lower than those of MG.Conclusions: We observed a good diagnostic reliability for the ABUS. Considering its performance for breast cancer detection in women with high-density breasts and its lower operator dependence, the ABUS is a promising option for breast cancer detection in China. | Xi Zhang Xi Lin Yanjuan Tan Ying Zhu Hui Wang Ruimei Feng Guoxue Tang Xiang Zhou Anhua Li Youlin Qiao | 2018 | Chinese Journal of Cancer Research2018，30，2： | 13 |
| 6 | Effects of adding bulking agents on the biodrying of kitchen waste and the odor emissions produced显示文摘The effects of adding a bulking agent on the performance and odor emissions(ammonia and eight sulfur-containing odorous compounds) when biodrying kitchen waste were investigated. Three treatments were considered: the addition of either cornstalks(CS) or wood peat(WP) to kitchen waste as a bulking agent before biodrying, and a control treatment(CK). The water-removal rates for CK, CS, and WP treatments were 0.35, 0.56, and0.43 kg/kg, respectively. Addition of bulking agents to kitchen waste produced less leachate,higher moisture-removal rates, and lower consumption of volatile solids. The CS treatment had the highest biodrying index(4.07), and those for the WP and CK treatments were 3.67 and 1.97, respectively. Adding cornstalks or wood peat decreased NH3 emissions by 55.8%and 71.7%, respectively. Total sulfur losses were 3.6%–21.6% after 21 days biodrying, and H2 S and Me2 SS were the main(> 95%) sulfur compounds released. The smallest amounts of sulfur-containing odorous compounds were emitted when cornstalks were added, and adding cornstalks and wood peat decreased total sulfur losses by 50.6%–64.8%. | Jing Yuan Yun Li Hongyu Zhang Difang Zhang David Chadwick Guoxue Li Guoying Wang Menghao Chi Fan Yang | 2018 | Journal of Environmental Sciences2018，30，5： | 7 |
| 7 | Environmental monitoring and fuzzy synthetic evaluation of municipal solid waste transfer stations in Beijing in 2001-2006显示文摘Transfer station(TS)is an integral part of present-day municipal solid waste(MSW)management systems.To provide information for the incorporation of waste facilities within the current integrated waste management system,the authors measured the existing environmental quality at five MSW TSs.Discharged wastewater,air,and noise were monitored and assayed at the five TSs in Beijing in 2001-2006 during rainy seasons(RSs)and dry seasons(DSs).Except Ammonia(NH_3)and hydrogen sulfide(H_2S),the analytical results... | LI, Chunping LI, Guoxue LUO, Yiming LI, Yanfu HUANG, Jian | 2008 | Journal of Environmental Sciences2008，20，8： | 7 |
| 8 | SIMULTANEOUS SHAPE AND TOPOLOGY OPTIMIZATION OF TRUSS UNDER LOCAL AND GLOBAL STABILITY CONSTRAINTS显示文摘A new approach for the solution of truss shape and topology optimization problem sunder local and global stability constraints is proposed. By employing the cross sectional areas of each bar and some shape parameters as topology design variables, the difficulty arising from the jumping of buckling length phenomenon can be easily overcome without the necessity of introducing the overlapping bars into the initial ground structure. Therefore computational efforts can be saved for the solution of this kind of problem. By modifying the elements of the stiffness matrix using Sigmoid function, the continuity of the objective and constraint functions with respect to shape design parameters can be restored to some extent. Some numerical examples demonstrate the effectiveness of the proposed method. | GuoXu LiuWei LiHongyan | 2003 | Acta Mechanica Solida Sinica2003，16，2： | 5 |
| 9 | Characteristics of the Large Area Surface Dielectric Barrier Discharge with a Multi-electrode Configuration显示文摘Surface gas discharge(SGD)plasmas have potential applications in the fields of active flow control,gas purification,heat transfer enhancement,etc.In order to obtain a uniform,stable and large-area SGD at atmosphere,a multi-electrode SGD plasma generator is designed in this paper.The major features of this newly-designed SGD plasma generator is as follows:the air-exposed upper grounded electrodes are made of nine tungsten wires and flush mounted on the dielectric PTFE barrier layer,while the lower powered electrode is made of a copper foil and encapsulated inside the PTFE material to avoid the ignition of the gas discharges below the dielectric barrier layer.The measurements on the electrical characteristics,fast imaging of discharges and the preliminary numerical analysis on the electric field distributions suggest that the multi-electrode configuration of the plasma generator plays a crucial role in enhancing the local electrical field,and subsequently,leads to the stable,quasi-uniform and large-area surface discharges. | LI Heping CHEN Guoxu WANG Zhibin GE Nan BAO Chengyu | 2013 | 高电压技术2013，39，9： | 4 |
| 10 | Intrinsically Stretchable Organic-Tribotronic-Transistor for Tactile Sensing显示文摘Stretchable electronics are of great significance for the development of the next-generation smart interactive systems.Here,we propose an intrinsically stretchable organic tribotronic transistor(SOTT)without a top gate electrode,which is composed of a stretchable substrate,silver nanowire electrodes,semiconductor blends,and a nonpolar elastomer dielectric.The drain-source current of the SOTT can be modulated by external contact electrification with the dielectric layer.Under 0-50%stretching both parallel and perpendicular to the channel directions,the SOTT retains great output performance.After being stretched to 50%for thousands of cycles,the SOTT can survive with excellent stability.Moreover,the SOTT can be conformably attached to the human hand,which can be used for tactile signal perception in human-machine interaction and for controlling smart home devices and robots.This work has realized a stretchable tribotronic transistor as the tactile sensor for smart interaction,which has extended the application of tribotronics in the human-machine interface,wearable electronics,and robotics. | Junqing Zhao Tianzhao Bu Xiaohan Zhang Yaokun Pang Wenjian Li Zhi Zhang Guoxu Liu Zhong Lin Wang Chi Zhang | 2020 | Research2020，，1： | 4 |
| 11 | Preparation and Tribological Properties of Lanthanum-doped Muscovite Composite Particles as Lubricant Additives in Lithium Grease显示文摘Lanthanum-doped muscovite(MC) composite particles(hereinafter abbreviated as La-MC) were prepared by the mechanical solid-state-chemistry-reaction method, followed by surface modification with oleic acid. The microstructure of materials was characterized by SEM, XRD, EDS and FTIR. Furthermore, the friction-reduction and anti-wear properties of MC and La-MC as lubricant additives in lithium grease were evaluated using a four-ball friction and wear tester. The results showed that La(OH)_3 nanoparticles were coated on the surface of muscovite. Both MC and La-MC can effectively improve the friction-reduction and anti-wear properties of lithium grease and La-MC presents better tribological properties than MC. The excellent tribological properties of La-MC can be attributed to the formation of the adsorbed La-MC film and the chemical reaction film mainly composed of Fe_2O_3 and SiO_2 on the worn surface, as well as the catalysis of lanthanum element during the friction process. | Du Pengfei Chen Guoxu Song Shiyuan Zhao Litao Wu Jiang Cheng Peng Yang Xiao | 2016 | China Petroleum Processing & Petrochemical Technology2016，18，2： | 4 |
| 12 | Multi-variable grey model (MGM(1,n,q)) based on genetic algorithm and its application in urban water consumption显示文摘Urban water consumption has some characteristics of grey because it is influenced by economy, population, standard of living and so on. The multi-variable grey model (MGM(1,n)), as the expansion and complement of GM(1,1) model, reveals the relationship between restriction and stimulation among variables, and the genetic algorithm has the whole optimal and parallel characteristics. In this paper, the parameter q of MGM(1,n) model was optimized, and a multi-variable grey model (MGM(1,n,q)) was built by using the genetic algorithm. The model was validated by examining the urban water consumption from 1990 to 2003 in Dalian City. The result indicated that the multi-variable grey model (MGM(1,n,q)) based on genetic algorithm was better than MGM(1,n) model, and the MGM(1,n) model was better than MGM(1,1) model. | Yan Han Shi Guoxu | 2007 | Agricultural Science & Technology2007，8，1： | 3 |
| 13 | Non-orthogonal joint diagonalization with diagonal constraints显示文摘Joint diagonalization has attracted much attention and many algorithms have been presented so far.However,some ambiguities still exist in the objective functions for joint diagonalization.In this paper,some criterions are proposed to eliminate the above ambiguities at first,and then a new objective function which satisfies these criterions is presented.The new objective function introduces diagonal con-straints for joint diagonalization,thus the trivial and unbalance solutions are excluded easily.Exactly jointly diagonalizable theorem is built to interpret the reasonableness of the new objective function and the conjugate gradient method is used to provide fast and reliable convergence.Finally,non-orthogonal joint diagonalization algorithm with diagonal constraints(DDiag)is developed.Simulations show that DDiag is ecient and robust. | Guoxu Zhou Zuyuan Yang Zongze Wu Jinlong Zhang | 2008 | Progress in Natural Science:Materials International2008，18，6： | 3 |
| 14 | Challenges,interface engineering,and processing strategies toward practical sulfide-based all-solid-state lithium batteries显示文摘All-solid-state lithium batteries have emerged as a priority candidate for the next generation of safe and energy-dense energy storage devices surpassing state-of-art lithium-ion batteries.Among multitudinous solid-state batteries based on solid electrolytes(SEs),sulfide SEs have attracted burgeoning scrutiny due to their superior ionic conductivity and outstanding formability.However,from the perspective of their practical applications concerning cell integration and production,it is still extremely challenging to constructing compatible electrolyte/electrode interfaces and developing available scale processing technologies.This review presents a critical overview of the current underlying understanding of interfacial issues and analyzes the main processing challenges faced by sulfide-based all-solid-state batteries from the aspects of cost-effective and energy-dense design.Besides,the corresponding approaches involving interface engineering and processing protocols for addressing these issues and challenges are summarized.Fundamental and engineering perspectives on future development avenues toward practical application of high energy,safety,and long-life sulfide-based all-solid-state batteries are ultimately provided. | Yuhao Liang Hong Liu Guoxu Wang Chao Wang Yu Ni Ce-Wen Nan Li-Zhen Fan | 2022 | InfoMat2022，4，5： | 3 |
| 15 | Implantable sandwich PHBHHx film for burst-free controlled delivery of thymopentin peptide显示文摘Sustained release and non-parental formulations of peptides and protein drugs are highly desirable because of enhanced therapeutic effects as well as improved patient compliance. This is especially true for small peptides such as thymopentin(TP5). To this end, implantable sandwich poly(hydroxybutyrate-co-hydroxyhexanoate)(PHBHHx) films were designed to prolong release time and to inhibit burst release phenomenon of TP5 by a simple volatilization method. In vitro release studies revealed that sandwich films had nearly no burst release. In vivo release time of sandwich films was prolonged to 42 days. Pharmacodynamic evaluation demonstrated that TP5 sandwich films significantly increased survival rates in a rat immunosuppressive model and normalized CD4^+/CD8^+ values. These results suggest that TP5 released from sandwich films can attenuate cyclophosphamide's immunosuppressive activity, and possibly achieve results comparable to daily TP5 injection therapy. Thus, sandwich PHBHHx films show excellent potential as a sustained, burst-free release system for small molecular weight, hydrophilic peptide drugs. | Ke Peng Chengyu Wu Guoxu Wei Jinghui Jiang Zhirong Zhang Xun Sun | 2018 | Acta Pharmaceutica Sinica B2018，8，3： | 2 |
| 16 | Online blind source separation based on joint diagonalization显示文摘A new algorithm is proposed for joint diagonalization. With a modified objective function, the new algorithm not only excludes trivial and unbalanced solutions successfully, but is also easily optimized. In addition, with the new objective function, the proposed algorithm can work well in online blind source separation (BSS) for the first time, although this family of algorithms is always thought to be valid only in batch-mode BSS by far. Simulations show that it is a very competitive joint diagonalization algorithm. | Li Ronghua Zhou Guoxu Yang Zuyuan Xie Shengli | 2009 | Journal of Systems Engineering and Electronics2009，20，2： | 2 |
| 17 | MXene based mechanically and electrically enhanced film for triboelectric nanogenerator显示文摘The development of triboelectric nanogenerator(TENG)technology which can directly convert ambient mechanical energy into electric energy may affect areas from green energy harvesting to emerging wearing electronics.And,the material of triboelectric layer is critical to the mechanical robustness and electrical output characteristics of the TENGs.Herein,a MXene enhanced electret polytetrafluoroethylene(PTFE)film with a high mechanical property and surface charge density is developed.The MXene/PTFE composite film was synthesized by spraying and annealing treatment.With the doping of MXene,the crystallinity of composite film could be tuned,leading to an enhancement in the tensile property of 450%and reducing the wear volume about 80%in the friction test.Furthermore,the as-fabricated TENG with this composite film outputs 397 V of open-circuit voltage,21µA of short-circuit current,and 232 nC of transfer charge quantity,which are 4,6,and 6 times higher than that of the TENG made by pure PTFE film,respectively.Therefore,this work provides a creative strategy to simultaneously improve the mechanical property and electrical performance of the TENGs,which have great potential in improving device stability under a complex mechanical environment. | Yuyu Gao Guoxu Liu Tianzhao Bu Yaoyao Liu Youchao Qi Yanting Xie Shaohang Xu Weili Deng Weiqing Yang Chi Zhang | 2021 | Nano Research2021，14，12： | 2 |
| 18 | Raindrop energy-powered autonomous wireless hyetometer based on liquid-solid contact electrification显示文摘Triboelectric nanogenerators(TENGs)can directly harvest energy via solid-liquid interface contact electrification,making them very suitable for harvesting raindrop energy and as active rainfall sensors.This technology is promising for realizing a fully self-powered system for autonomous rainfall monitoring combined with energy harvesting/sensing.Here,we report a raindrop energy-powered autonomous rainfall monitoring and wireless transmission system(R-RMS),in which a raindrop-TENG(R-TENG)array simultaneously serves as a raindrop energy harvester and rainfall sensor.At a rainfall intensity of 71 mm/min,the R-TENG array can generate an average short-circuit current,open-circuit voltage,and maximum output power of 15 pA,1800 V,and 325 pW,respectively.The collected energy can be adjusted to act as a stable 2.5 V direct-current source for the whole system by a power management circuit.Meanwhile,the R-TENG array acts as a rainfall sensor,in which the output signal can be monitored and the measured data are wirelessly transmitted.Linder a rainfall intensity of 71 mm/min,the R-RMS can be continuously powered and autonomously transmit rainfall data once every 4 min.This work has paved the way for raindrop energy-powered wireless hyetometers,which have exhibited broad prospects in unattended weather monitoring,field surveys,and the Internet of Things. | Chaoqun Xu Xianpeng Fu Chengyu Li Guoxu Liu Yuyu Gao Youchao Qi Tianzhao Bu Yuanfen Chen Zhong Lin Wang Chi Zhang | 2022 | Microsystems & Nanoengineering2022，8，2： | 2 |
| 19 | Slope reliability analysis based on Monte Carlo simulation and sparse grid method显示文摘In order to solve the problem of the reliability of slope engineering due to complex uncertainties, the Monte Carlo simulation method is adopted. Based on the characteristics of sparse grid, an interpolation algorithm, which can be applied to high dimensional problems, is introduced. A surrogate model of high dimensional implicit function is established, which makes Monte Carlo method more adaptable. Finally, a reliability analysis method is proposed to evaluate the reliability of the slope engineering, and is applied in the Sau Mau Ping slope project in Hong Kong. The reliability analysis method has great theoretical and practical significance for engineering quality evaluation and natural disaster assessment. | WU Guoxue PENG Yijin LIU Xuesong HU Tao WU Hao | 2019 | Global Geology2019，22，3： | 2 |
| 20 | New method for signal encryption using blind source separation based on subband decomposition显示文摘A novel cryptosystem based on subband decomposition independent component analysis(SDICA)is proposed in this work,where no assumption of independence for the ciphers and the plaintexts is required.In the proposed cryptosystem,the encryption is asynchronous,i.e.the plaintexts are mixed mutually firstly and then mixed with the ciphers.In addition,the decryption is asynchronous,such that the decryption accuracy of the plaintexts can be enhanced.Some special information about the original mixing matrix is used for solving the indeterminacy of the permutation and scale of columns of the recovered mixing matrix in SDICA,instead of the characteristics of the plaintexts.Simulations are given to illustrate security and availability of our cryptosystem. | Zuyuan Yang Guoxu Zhou Zongze Wu Jinlong Zhang | 2008 | Progress in Natural Science:Materials International2008，18，6： | 2 |
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