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Leaching toxicity characteristics of municipal solid waste incineration bottom ash

Khamphe PHOUNGTHONG,Yi XIA,Hua ZHANG,Liming SHAO,Pinjing HE

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 399-411 doi: 10.1007/s11783-015-0819-5

Abstract: The continuously increasing production of municipal solid waste incineration bottom ash (MSWIBA) has promoted its utilization as construction material and raised environmental concern. The physico-chemical properties and leaching behavior of MSWIBA were studied, and ecotoxicological testing using a luminescent bacterium bioassay was performed to assess the ecological pollution risks associated with its leached constituents. The MSWIBA was leached by two types of leachants, H SO /HNO and HAc solution, at different liquid to solid ratios and contact times. The concentrations of heavy metals and anions in the leachates were analyzed. Multivariate statistical analyses, including principle component analysis, Pearson's correlation analysis and hierarchical cluster analysis, were used to evaluate the contributions of the constituents to the toxicity ( ) of the MSWIBA leachate. The statistical analyses of the ecotoxicological results showed that the Ba, Cr, Cu, Pb, F and total organic carbon (TOC) concentrations were closely correlated with the value, and these substances were the main contributors to the ecotoxicity of the MSWIBA leachate. In addition, the cluster of these variables indicated similar leaching behaviors. Overall, the research demonstrated that the ecotoxicological risks resulting from MSWIBA leaching could be assessed before its utilization, which provides crucial information for the adaptation of MSWIBA as alternative materials.

Keywords： Municipal solid waste incineration     bottom ash     alternative material     leaching tests     toxicity     <i>Vibrioqinghaiensisi> (Q67)    

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Development of a new method for RMR and Q classification method to optimize support system in tunneling

Asghar RAHMATI,Lohrasb FARAMARZI,Manouchehr SANEI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 448-455 doi: 10.1007/s11709-014-0262-x

Abstract: Rock mass classification system is very suitable for various engineering design and stability analysis. classification method is confirmed by Japan Highway Public Corporation that this method can figure out either strength or deformability of rock mass, further appropriating the amount of rock bolts, thickness of shotcrete, and size of pitch of steel ribs just after the blasting procedure. Based on these advantages of method, in this study, according to data of five deep and long tunnels in Iran, two equations for estimating the value of method from and classification systems were developed. These equations as a new method were able to optimize the support system for and classification systems. From classification and its application in these case studies, it is pointed out that the method for the design of support systems in underground working is more reliable than the and classification systems.

Keywords： <i>JHi> classification     <i>Qi> and <i>RMRi> classification     new method    

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><i>In situi> growth of phosphorized ZIF-67-derived amorphous CoP/Cu2O@CF electrocatalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1430-1439 doi: 10.1007/s11705-023-2320-1

Abstract: Herein, we report an <i>in situi> phosphorization of zeolitic imidazole frameworks (ZIF-67) to generateamorphous cobalt phosphide/ZIF-67 heterojunction on a self-supporting copper foam (CF) substrate withneedle-leaf like copper hydroxide was anchored on CF surface, which acted as implantation to grow ZIF-67, the <i>di>-band center of CoP downshifted after bonding with ZIF-67 and the Gibbs free energy (Δ<i>Gi>H*) changed from –0.18 to –0.11 eV, confirming both decrease in overpotential and excellent

Keywords： CoP/Cu2O@CF     electrocatalyst     phosphorization     HER     DFT    

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R158Q and G212S, novel pathogenic compound heterozygous variants in of Gitelman syndrome

Frontiers of Medicine 2022, Volume 16, Issue 6,   Pages 932-945 doi: 10.1007/s11684-022-0963-9

Abstract: -Cl− cotransporter (NCC) caused by mutations in solute carrier family12, member 3 gene (<i>SLC12A3i>) primarily causes Gitelman syndrome (GS).In identifying the pathogenicity of R158Q and G212S variants of <i>SLC12A3i>, we evaluated the pathogenicityR158Q/G212S.These findings indicated that R158Q and G212S variants of <i>SLC12A3i> were pathogenic variants of

Keywords： Gitelman syndrome     mouse model     compound heterozygous     hypokalemia     <i>Slc12a3i>    

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Standard-independent I/Q imbalance estimation and compensation scheme inOFDM direct-conversion transceivers None

Fang-lin GU, Shan WANG, Wen-wu WANG

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 3,   Pages 388-397 doi: 10.1631/FITEE.1700003

Abstract: However, they suffer from a serious in- and quadrature-phase (I/Q) imbalance problem.The I/Q imbalance can severely limit the achievable operating signal-to-noise ratio (SNR) at the receiver(OFDM) receivers, and then propose a new I/Q imbalance compensation scheme.Q imbalance parameters, and then the I/Q imbalance is corrected in the frequency domain.The results show that the proposed I/Q imbalance compensation method can achieve bit error rate (BER)

Keywords： In- and quadrature-phase (I/Q) imbalance     Orthogonal frequency division multiplexing (OFDM)     Standard-independent    

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Minimax <i>Qi>-learning design for <i>Hi>∞ control of linear discrete-time systems Research Articles

Xinxing LI, Lele XI, Wenzhong ZHA, Zhihong PENG,lixinxing_1006@163.com,xilele.bit@gmail.com,zhawenzhong@126.com,peng@bit.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 3,   Pages 438-451 doi: 10.1631/FITEE.2000446

Abstract: The method is an effective approach for attenuating the effect of disturbances on practical systems, but it is difficult to obtain the ler due to the nonlinear Hamilton–Jacobi–Isaacs equation, even for linear systems. This study deals with the design of an ler for linear discrete-time systems. To solve the related game algebraic Riccati equation (GARE), a novel model-free method is developed, on the basis of an offline algorithm, which is shown to be Newton’s method for solving the GARE. The proposed method, which employs off-policy , learns the optimal control policies for the controller and the disturbance online, using only the state samples generated by the implemented behavior policies. Different from existing -learning methods, a novel gradient-based policy improvement scheme is proposed. We prove that the method converges to the saddle solution under initially admissible control policies and an appropriate positive learning rate, provided that certain persistence of excitation (PE) conditions are satisfied. In addition, the PE conditions can be easily met by choosing appropriate behavior policies containing certain excitation noises, without causing any excitation noise bias. In the simulation study, we apply the proposed method to design an load-frequency controller for an electrical power system generator that suffers from load disturbance, and the simulation results indicate that the obtained load-frequency controller has good disturbance rejection performance.

Keywords： H∞ control     Zero-sum dynamic game     Reinforcement learning     Adaptive dynamic programming     Minimax Q-learning    

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An approach for evaluating fire resistance of high strength Q460 steel columns

Wei-Yong WANG, Guo-Qiang LI, Bao-lin YU

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 26-35 doi: 10.1007/s11709-014-0239-9

Abstract: To develop a methodology for evaluating fire resistance of high strength Q460 steel columns, the loadbearing capacity of high strength Q460 steel columns is investigated.evaluating load bearing capacity of mild steel columns at room temperature is extended to high strength Q460steel columns with due consideration to high temperature properties of high strength Q460 steel.The critical temperature of high strength Q460 steel column is presented and compared with mild steel

Keywords： high strength Q460 steel     load bearing capacity     temperature    

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Simultaneous Screening of 733 Pesticide Residues in Fruits and Vegetables by a GC/LC-Q-TOFMS Combination Article

Guofang Pang, Qiaoying Chang, Ruobin Bai, Chunlin Fan, Zijuan Zhang, Hongyuan Yan, Xingqiang Wu

Engineering 2020, Volume 6, Issue 4,   Pages 432-441 doi: 10.1016/j.eng.2019.08.008

Abstract: chromatography (LC)– and gas chromatography (GC)–quadru pole-time-of-flight mass spectrometry (Q-TOFMSstandard materials as references through one sample preparation and the combination of GC/LC–Q-TOFMStechnique, the combination technique shows an improvement of 51.1% (GC–QTOFMS) and 39.6% (LC–Q-TOFMS

Keywords： Pesticide multi-residues     GC–Q-TOFMS      LC–Q-TOFMS     Accurate mass database      Spectra library      Fruits and    

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A New Type of Q-switched and Frequency-doubling Green Laser

Chen Fei,Huo Yujing,He Shufang,Feng Lichun

Strategic Study of CAE 2000, Volume 2, Issue 4,   Pages 39-42

Abstract:

A new type of LD pumped Nd： YV04- KTP Q-switched green laser is demonstrated.By using the KTP crystal as both an electro-optic Q-switcher and a frequency-doubling crystal in type

Keywords： KTP     green laser     electro-optic Q-switcher     frequency-doubling    

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Application research of Q&P concept in hot rolled AHSS production

Yuan Guo,Kang Jian,Zhang He,Li Yunjie,Hu Hongling and Wang Guodong

Strategic Study of CAE 2014, Volume 16, Issue 1,   Pages 59-65

Abstract: industry，the development of advanced high strength steel obtained using the quenching and partitioning （Q&In the present work，the application of Q&P concept during hot rolling was investigated for wide useof Q&P process on the conventional hot rolling production line.It was shown that introducing thermo-mechanical treatment during the conventional Q&P process wasThe feasibility of producing the hot rolled Q&P steel（DQ（direct quenching）&P steel）was determined

Keywords： advanced high strength steel     Q&P     DQ&P     hot rolling     retained austenite    

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On-Line Supervisory Technology for Q-Factor in the Optical Supervisory Channel of Optical Transport Network

Tang Yong,Sun Xiaohan,Zhang Mingde,Ding Dong

Strategic Study of CAE 2001, Volume 3, Issue 12,   Pages 71-75

Abstract: Basing on the one-to-one correspondence of Q-factor with bit-error-ratio (BER) in data communicationsystems, an on-line supervisory scheme for Q-factor of signals in OSC is presented, and the supervisorymodule by a digital signal processor (DSP) approach is designed to implement on-line supervision for Q-factor

Keywords： optical transport network (OTN)     optical supervisory channel (OSC)     OAM     Q-factor supervision    

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A rare case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24;q32) translocation

Xiaofeng Shi, Rong Ba, Haiyan You, Qian Jiang, Jiansong Huang, Jianhua Mao, Lanxiu Han, Shuo Zhang, Qin Zhuang, Xianqiu Yu, Lixia Wang, Yun Wang, Dongya Li, Wei Zhu, Yong Zhang, Yan Zhu, Xiaodong Xi

Frontiers of Medicine 2018, Volume 12, Issue 3,   Pages 324-329 doi: 10.1007/s11684-017-0558-z

Abstract: At present, only one case of SLVL with t(8;14)(q24;q32) translocation has been reported.study, we report a case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24;q32) chromosome translocation that we inclined to SLVL with a prolymphocytic transformation.The karyotype showed complex abnormality: 46XX,+3,−10, t(8;14)(q24;q32)[11]/46XX[9].described an unusual case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24

Keywords： splenic lymphoma with villous lymphocytes     splenic marginal zone lymphoma     transformation     chromosome translocation    

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Hot deformation behavior of a novel bimetal consisting of BTW1 and Q345R characterized by processing

Pengtao LIU, Lifeng MA, Weitao JIA, Tao WANG, Guanghui ZHAO

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 489-495 doi: 10.1007/s11465-019-0554-x

Abstract: Only a few studies have been conducted on the flow behavior of the novel BTW1/Q345R bimetal, which isIn this work, compression tests were conducted on BTW1/Q345R bimetal at a temperature range of 950 °CThe computed apparent activation energy of the BTW1/Q345R bimetal was 360 kJ/mol, and processing mapsrelationship revealed that work hardening exerted a dominant effect on the thermal deformation of the BTW1/Q345RResults showed that thermal deformation of the BTW1/Q345R bimetal should proceed when the temperature

Keywords： BTW1/Q345R bimetal     constitutive equation     processing map     work hardening    

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A deep Q-learning network based active object detection model with a novel training algorithm for service Research Article

Shaopeng LIU, Guohui TIAN, Yongcheng CUI, Xuyang SHAO

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 11,   Pages 1673-1683 doi: 10.1631/FITEE.2200109

Abstract: The DQN model is designed to fit the Q-values of various actions, and includes state space, feature extraction

Keywords： Active object detection     Deep Q-learning network     Training method     Service robots    

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Title Author Date Type Operation

Leaching toxicity characteristics of municipal solid waste incineration bottom ash

Khamphe PHOUNGTHONG,Yi XIA,Hua ZHANG,Liming SHAO,Pinjing HE

Journal Article

Development of a new method for RMR and Q classification method to optimize support system in tunneling

Asghar RAHMATI,Lohrasb FARAMARZI,Manouchehr SANEI

Journal Article

><i>In situi> growth of phosphorized ZIF-67-derived amorphous CoP/Cu2O@CF electrocatalyst

Journal Article

R158Q and G212S, novel pathogenic compound heterozygous variants in of Gitelman syndrome

Journal Article

Standard-independent I/Q imbalance estimation and compensation scheme inOFDM direct-conversion transceivers

Fang-lin GU, Shan WANG, Wen-wu WANG

Journal Article

Minimax <i>Qi>-learning design for <i>Hi>∞ control of linear discrete-time systems

Xinxing LI, Lele XI, Wenzhong ZHA, Zhihong PENG,lixinxing_1006@163.com,xilele.bit@gmail.com,zhawenzhong@126.com,peng@bit.edu.cn

Journal Article

construction integration technology in Brazil’s superlarge deep-water offshore oil and gas unit project (FPSO P67

Journal Article

An approach for evaluating fire resistance of high strength Q460 steel columns

Wei-Yong WANG, Guo-Qiang LI, Bao-lin YU

Journal Article

Simultaneous Screening of 733 Pesticide Residues in Fruits and Vegetables by a GC/LC-Q-TOFMS Combination

Guofang Pang, Qiaoying Chang, Ruobin Bai, Chunlin Fan, Zijuan Zhang, Hongyuan Yan, Xingqiang Wu

Journal Article

A New Type of Q-switched and Frequency-doubling Green Laser

Chen Fei,Huo Yujing,He Shufang,Feng Lichun

Journal Article

Application research of Q&P concept in hot rolled AHSS production

Yuan Guo,Kang Jian,Zhang He,Li Yunjie,Hu Hongling and Wang Guodong

Journal Article

On-Line Supervisory Technology for Q-Factor in the Optical Supervisory Channel of Optical Transport Network

Tang Yong,Sun Xiaohan,Zhang Mingde,Ding Dong

Journal Article

A rare case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24;q32) translocation

Xiaofeng Shi, Rong Ba, Haiyan You, Qian Jiang, Jiansong Huang, Jianhua Mao, Lanxiu Han, Shuo Zhang, Qin Zhuang, Xianqiu Yu, Lixia Wang, Yun Wang, Dongya Li, Wei Zhu, Yong Zhang, Yan Zhu, Xiaodong Xi

Journal Article

Hot deformation behavior of a novel bimetal consisting of BTW1 and Q345R characterized by processing

Pengtao LIU, Lifeng MA, Weitao JIA, Tao WANG, Guanghui ZHAO

Journal Article

A deep Q-learning network based active object detection model with a novel training algorithm for service

Shaopeng LIU, Guohui TIAN, Yongcheng CUI, Xuyang SHAO

Journal Article