Electroconvulsive Therapy on Severe Obsessive-Compulsive Disorder Comorbid Depressive Symptoms

Xiaohui Liu,Hong Cui,Qiang Wei,Ying Wang,Keyong Wang,Chen Wang,Chunyan Zhu,Xinhui Xie 대한신경정신의학회 2004 PSYCHIATRY INVESTIGATION Vol.1 No.2

Electroconvulsive therapy (ECT) is not currently used as a first-line treatment for obsessive-compulsive disorder (OCD). However, several related case reports have demonstrated that ECT seems to be effective for severe OCD, especially when first-line therapies have failed. In this study, we describe the courses, detailed parameters, effects, and follow-up information relating to three patients with severe OCD who were treated by modified bifrontal ECT after their first-line anti-OCD treatments pharmacotherapy, behavioral therapy, and cognitive behavioral therapy failed. The number of ECT procedures administered in each case is as follows: Case 1, eight; Case 2, three; and Case 3, four. In all three cases, the patients’ depressive symptoms improved considerably after the ECT procedures. In addition, the condition of all three patients’ OCD significantly improved and remained stable at regular follow-ups. ECT may play an effective role in treating severe OCD.

Current Review on the Research Status of Cemented Carbide Brazing: Filler Materials and Mechanical Properties

Xiaohui Yin,Qunshuang Ma,Bing Cui,Lei Zhang,Xingyan Xue,Sujuan Zhong,Dong Xu 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.4

Cemented carbides have been widely applied in cutting tools and wear-resistant components due to their ultrahigh hardnessand good wear resistance. However, the disadvantages of limited impact toughness and high cost have restricted their furtherapplication. Consequently, cemented carbides are usually joining with ductile steels to combine the advantages of both. Among various materials joining technologies, brazing have been an effective method to achieve high quality dissimilarcemented carbide joints. In this paper, the research status of cemented carbide brazing is reviewed. The materials utilized asbrazing filler metal in cemented carbide brazing joints are summarized in detail. Researchers have done lots of works utilizingCu based and Ag based brazing filler metals which are the most commonly used interlayers in brazed joints of cementedcarbide and ductile steel. The effects of different filler metal on wettability, microstructure, phase constitution and mechanicalproperties of brazed cemented carbides joints are analysed. Besides, a series of newly developed brazing filler materialsuch as nickel-based high temperature brazing filler metal, amorphous brazing filler metal and high entropy alloy brazingfiller materials are also involved. These newly developed brazing filler metals have shown great potential in fabricating highquality joints. Finally, the current issues of cemented carbide brazing are reviewed and the develop trend is predicted.

Interface damage mechanism of rubber cord composite material

Xiaohui Guo,Xiaojing Yuan,Guangyong Liu,Hefang Qiu,Fanfan Cui 한양대학교 청정에너지연구소 2023 Journal of Ceramic Processing Research Vol.24 No.1

In order to study the interface failure mechanism of rubber cord composites laid at symmetrical angles, a representativevolume element was established by the finite element method to simulate the stress distribution at the mesoscopic level ofrubber cord composites. The energy-based power law is used to simulate the damage evolution of the cord-rubber interface. The results show that the interface damage is caused by the torque that the cord bears during the stretching process, and theinterface assumes the role of transmitting torque in this process, so the failure occurred.The initial interface stiffness is a vitalbonding interface parameter that affects the interface damage evolution, and the initial stiffness is positively correlated withthe interface damage evolution variable. The increase in the included angle of the cord will cause the torque on the cord toincrease, resulting in aggravated interface failure.

A Quick Hybrid Atmospheric-interference Compensation Method in a WFS-less Free-space Optical Communication System

Cui, Suying,Zhao, Xiaohui,He, Xu,Gu, Haijun Optical Society of Korea 2018 Current Optics and Photonics Vol.2 No.6

In wave-front-sensor-less adaptive optics (WFS-less AO) systems, the Jacopo Antonello (JA) method belongs to the model-based class and requires few iterations to achieve acceptable distortion correction. However, this method needs a lot of measurements, especially when it deals with moderate or severe aberration, which is undesired in free-space optical communication (FSOC). On the contrary, the stochastic parallel gradient descent (SPGD) algorithm only requires three time measurements in each iteration, and is widely applied in WFS-less AO systems, even though plenty of iterations are necessary. For better and faster compensation, we propose a WFS-less hybrid approach, borrowing from the JA method to compensate for low-order wave front and from the SPGD algorithm to compensate for residual low-order wave front and high-order wave front. The correction results for this proposed method are provided by simulations to show its superior performance, through comparison of both the Strehl ratio and the convergence speed of the WFS-less hybrid approach to those of the JA method and SPGD algorithm.

The Application of Kalman Filter to the Natural Gamma Spectrum Well Logging

Cui Naigang,Lin Xiaohui,Jin Yongde 대한전자공학회 1995 International Conference on Electronics, Informati Vol.1995 No.8

Electroconvulsive Therapy on Severe Obsessive-Compulsive Disorder Comorbid Depressive Symptoms

Xiaohui Liu,Xinhui Xie,Hong Cui,Qiang Wei,Ying Wang,Keyong Wang,Chen Wang,Chunyan Zhu 대한신경정신의학회 2014 PSYCHIATRY INVESTIGATION Vol.11 No.2

Electroconvulsive therapy (ECT) is not currently used as a first-line treatment for obsessive-compulsive disorder (OCD). However, several related case reports have demonstrated that ECT seems to be effective for severe OCD, especially when first-line therapies have failed. In this study, we describe the courses, detailed parameters, effects, and follow-up information relating to three patients with severe OCD who were treated by modified bifrontal ECT after their first-line anti-OCD treatments pharmacotherapy, behavioral therapy, and cognitive behavioral therapy failed. The number of ECT procedures administered in each case is as follows: Case 1, eight; Case 2, three; and Case 3, four. In all three cases, the patients’ depressive symptoms improved considerably after the ECT procedures. In addition, the condition of all three patients’ OCD significantly improved and remained stable at regular follow-ups. ECT may play an effective role in treating severe OCD.

Facile synthesis of imprinted submicroparticles blend polyvinylidene fluoride membranes at ambient temperature for selective adsorption of methyl p-hydroxybenzoate

Yanhua Cui,Minjia Meng,Dongshu Sun,Yan Liu,Jianming Pan,Xiaohui Dai,Yongsheng Yan 한국화학공학회 2017 Korean Journal of Chemical Engineering Vol.34 No.3

We developed a simple phase inversion technique to prepare molecularly imprinted membrane (MIM) at room temperature for membrane selective adsorption and separation of methyl p-hydroxybenzoate (M4HB). The prepared SMIP-MIM was characterized by SEM, FT-IR, TGA. Compared with non-imprinted membrane (NIM1-5) adsorbent, SMIP-MIM1-5 adsorbent with high specific surface area and showed higher binding capacity, faster kinetic and better selectively adsorption capacity for M4HB. The maximum isotherm adsorption capacity for M4HB of SMIPMIM4 was 3.519mg·g−1, and the experimental data was well fitted to the slips model by multiple analysis. The maximum kinetic adsorption capacity and equilibrium adsorption time for SMIP-MIM4 were 1.335mg·g−1 and 160 min, respectively. The mechanism for dynamic adsorption of M4HB onto SMIP-MIM4 was found to follow pseudo-firstorder model and pseudo-second-order model. Additionally, the permeability separation factor of SMIP-MIM4 for M4HB compared to a structural analogues methyl 2-hydroxybenzoate (M2HB) could reach 2.847. The adsorption capacity of SMIP-MIM4 for M4HB and M2HB was 0.549mg·cm−2 and 1.563mg·cm−2, respectively. The adsorption behavior of M4HB through SMIP-MIM4 followed the retarded permeation mechanism.

Mechanical Properties and Microstructure Evolution of Pre-stretched Aluminum Alloy After Induced Electro-Pulsing Treatment

Shipeng Wang,Xiaohui Cui,Ang Xiao,Lei Zhang,Peng Zhao 대한금속·재료학회 2023 METALS AND MATERIALS International Vol.29 No.3

In this study, the effect of induced electro-pulsing treatment (IEPT) on the microstructure evolution and correspondingchanges in the mechanical properties of pre-stretched 5052-O aluminum alloy was investigated. Microstructural changesin the alloy were observed using electron backscatter diffraction, transmission electron microscopy, and scanning electronmicroscopy. The application of induced current significantly reduced the yield strength of pre-stretched specimens whilethe elongation increased. In terms of microstructure, more uniformly distributed dimples were observed after induced currentapplication, which indicate the increased plasticity of the alloy. The average grain size and number of low angle grainboundaries increased with application of induced current. The texture types did not change, however, the cube-type texturebecame less pronounced, whereas brass-type and copper-type textures were enhanced. Furthermore, the dislocation densitydecreased and dislocation rearrangement occurred. Thus, IEPT provides a new way to alter the microstructure and mechanicalproperties of the deformed components.

Temperature Dependency of Hydrogen Embrittlement in Thermally H-precharged STS 304 Austenitic Stainless Steel

Shipeng Wang,Xiaohui Cui,Ang Xiao,Peng Zhao,Lei Zhang 대한금속ᆞ재료학회 2023 METALS AND MATERIALS International Vol.29 No.2

In this study, the effect of induced electro-pulsing treatment (IEPT) on the microstructure evolution and correspondingchanges in the mechanical properties of pre-stretched 5052-O aluminum alloy was investigated. Microstructural changesin the alloy were observed using electron backscatter diffraction, transmission electron microscopy, and scanning electronmicroscopy. The application of induced current significantly reduced the yield strength of pre-stretched specimens whilethe elongation increased. In terms of microstructure, more uniformly distributed dimples were observed after induced currentapplication, which indicate the increased plasticity of the alloy. The average grain size and number of low angle grainboundaries increased with application of induced current. The texture types did not change, however, the cube-type texturebecame less pronounced, whereas brass-type and copper-type textures were enhanced. Furthermore, the dislocation densitydecreased and dislocation rearrangement occurred. Thus, IEPT provides a new way to alter the microstructure and mechanicalproperties of the deformed components.

Forming Limit and Mechanical Properties of 2024-O Aluminum Alloy Under Electromagnetic Forming

Yuhong Lin,Xiaohui Cui,Kanghua Chen,Ang Xiao,Ziqin Yan 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.10

The effect of electromagnetic forming (EMF) on the forming limit and properties of 2024-O aluminum alloy is studied in thispaper. This was done to address the important problems related to the poor forming limit of aluminum alloy when conventionalstamping is used. The evolution of the microstructure of the alloy during quasi-static stamping (QS) and the dynamicdeformation is analyzed. This was done using mechanical testing, texture analysis, scanning electron microscopy (SEM),fracture analysis, and transmission electron microscopy (TEM). Compared with QS, the forming limit for EMF increases by36.9%. For the same deformation height with 17.6mm, the maximum degree of thickness thinning of the sample for EMF is4.7%, and 6.4% for QS. The thickness distribution of the EMF sample is more uniform than for the QS sample. Numericalsimulation shows the maximum principal stresses at different points were almost same with each other after EMF, whichleads to uniformity plastic deformation of samples. In addition, the grain size of the material decreases, the proportion ofsmall-angle grains increases, and the copper texture increases after EMF. When EMF is used, the dislocation density of thesample is significantly higher than for QS and the dislocation distribution is more uniform. The temperature rise is small,which is not a significant reason for dislocation dispersed in EMF.