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World Journal of Clinical Cases 2020年第20期8卷 4958-4965页

作者： Hai-Juan Lv hong-wei zhao Department of Radiology The Second Affiliated Hospital of Jiaxing UniversityJiaxing 314000Zhejiang ProvinceChina

BACKGROUND Amiodarone is the drug most commonly used to manage ***-term amiodarone administration causes hepatotoxicity due to iodine accumulation in the ***,we present three cases of amiodarone-induced hepatotoxicity in patients on long-term oral amiodarone therapy who underwent dual-energy computed tomography(DECT).CASE SUMMARY We report the clinical and iodine density in the liver using DECT in three patients with amiodarone-induced *** enzymes were increased in these three patients,and abdominal DECT without contrast medium showed highly increased attenuation in the ***,the iodine concentration in the liver was *** first patient with amiodarone-induced reversible hepatotoxicity,showed a reversible course of liver function and a decrease in CT values after discontinuation of *** second patient on long-term oral amiodarone had increased iodine concentration in the liver and liver damage,the patient eventually developed rapidly progressive pneumonia and died of multiple organ *** third patient,showed an increased iodine concentration in the liver and elevated liver ***,the patient refused radiofrequency ablation for atrial fibrillation and continued oral amiodarone to control atrial fibrillation,and routine liver function tests were required every 3-6 mo in this *** DECT is a potentially noninvasive diagnostic tool for quantifying iodine concentration in the liver and monitoring adverse reactions due to amiodarone.

关键词： Case report Amiodarone Hepatotoxicity Iodine density Computed tomography Dual energy Arrhythmias

COVID-19 pandemic changed the management and outcomes of acute appendicitis in northern Beijing:A single-center study

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World Journal of Clinical Cases 2022年第3期10卷 820-829页

作者： Peng Zhang Qian Zhang hong-wei zhao Department of Gastrointestinal Surgery Beijing Tsinghua Changgung HospitalSchool of Clinical MedicineTsinghua UniversityBeijing 102218China

BACKGROUND Since the outbreak of the coronavirus disease 2019(COVID-19)pandemic,outcomes and management of many diseases have been *** appendicitis is a common acute *** incidence rate is 0.05%-0.5%.Studies reported that the number of patients with appendicitis admitted to emergency department significantly decreased since the *** avoided going to the hospital for fear of being *** countries have different epidemic prevention measures that result in different treatment *** Chinese government also published some temporary measures in order to prevent the *** To explore the changes in management and outcomes of acute appendicitis during the COVID-19 pandemic in the North of *** Patients with acute appendicitis admitted to Beijing Tsinghua Changgung Hospital between February and June 2019 and February and June 2020 were retrospectively *** were grouped according to admission *** demographic characteristics,present illnesses,medical history,symptoms and signs,comorbidities,blood test results,imaging data,appendix pathology,and treatment details were *** Overall,74 patients received nonsurgical treatment and 113 patients underwent surgical treatment in group 2019,whereas 159 patients received nonsurgical treatment and 26 patients received surgical treatment in group ***,thick appendix,nonsurgical management,and uncomplicated appendicitis(simple or supportive appendicitis)were more common in group 2020(P<0.05).Among the nonsurgical management cases,the neutrophil percentage,neutrophil-tolymphocyte ratio,and recurrence rate were higher in group 2020(P<0.05).Among surgically managed cases,there were more cases with gastrointestinal symptoms,peritonitis,ascites in the image,and intraoperative adhesion or ascites in group 2020(P<0.05).The white blood cell count,time from diagnosis to surgery,surgical time,and intraoperative blood loss were higher in group 2020(P<0.0

关键词： COVID-19 Acute appendicitis Case management Treatment outcome Antibiotic treatment Laparoscopic appendectomy

L-priorities Bloom Filter: A New Member of the Bloom Filter Family

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International Journal of Automation and computing 2012年第2期9卷 171-176页

作者： Huang-Shui Hu hong-wei zhao Fei Mi College of Computer Science and Technology Jilin University Changchun 130012 PRC Key Laboratory of Symbolic Computation and Knowledge Engineering for Ministry of Education Jilin University Changchun 130012 PRC

A Bloom filter is a space-efficient data structure used for concisely representing a set as well as membership queries at the expense of introducing false positive. In this paper, we propose the L-priorities Bloom filter （LPBF） as a new member of the Bloom filter （BF） family, it uses a limited multidimensional bit space matrix to replace the bit vector of standard bloom filters in order to support different priorities for the elements of a set. We demonstrate the time and space complexity, especially the false positive rate of LPBF. Furthermore, we also present a detailed practical evaluation of the false positive rate achieved by LPBF. The results show that LPBF performs better than standard BFs with respect to false positive rate.

关键词： Bloom filter bit space matrix false positive L-priorities time and space complexity.

Latest developments in chronic intestinal pseudo-obstruction

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World Journal of Clinical Cases 2020年第23期8卷 5852-5865页

作者： Chang-Zhen Zhu hong-wei zhao hong-wei Lin Feng Wang Yuan-Xin Li Department of Gastrointestinal Surgery Beijing Tsinghua Changgung HospitalSchool of Clinical MedicineTsinghua UniversityBeijing 102218China

Chronic intestinal pseudo-obstruction(CIPO)is a type of intestinal dysfunction presenting as symptoms of intestinal obstruction but without actual mechanical *** extremely low incidence,non-specific clinical symptoms,strong heterogeneity,and no definitive cause in some patients make CIPO very difficult to diagnose *** and gastrointestinal manometry are commonly *** patients have progressive worsening of their symptoms and require intervention,and nutritional assessment and treatment are very important to determine the *** improvements in surgical techniques,small bowel transplantation is a feasible treatment option for patients with advanced CIPO;however,the long-term prognosis for CIPO patients remains ***,the disease is rare and difficult to diagnose,which leads to clinicians’lack of understanding of the disease and results in a high rate of *** review describes the characteristics of CIPO and the latest developments in diagnosis and treatment,in *** goal of our review is to improve clinicians'understanding of CIPO so that the disease is identified quickly and accurately,and treated as early as possible to improve patients’quality of life.

关键词： Chronic intestinal pseudo-obstruction Intestinal obstruction Enteral nutrition Parenteral nutrition Intestinal transplantation

Terahertz Metamaterial Sensor Based on Electromagnetically Induced Transparency Effect

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Journal of Electronic Science and Technology 2015年第2期13卷 117-121页

作者： Shao-Xian Li hong-wei zhao Jia-Guang Han Center for Terahertz wave Key laboratory of Opto-electronic Information Science and TechnologyMinistry of EducationCollege of Precision Instrument and Optoelectronics EngineeringTianjin University Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of Sciences

A terahertz metamaterial sensor adopting the metamaterial-based electromagnetically induced transparency（EIT） effect is presented for determining the 1,4-dioxane concentration in its aqueous solution. The metamaterial sensor, which consists of an EIT element unit with a cut-wire metallic resonator and two split-ring metallic resonators fabricated on a 490-μm thick silicon substrate, operates in a transmission geometry. The EIT peak was red-shifted and decreased with the increase of the water volume. A maximum redshift about 54 GHz of the EIT peak was detected between the 1,4-dioxane and water. The presented linear behavior and high sensitivity of the EIT peak depending on the water concentration pave a novel avenue for sensor applications.

关键词： metallic terahertz resonator transparency determining fabrication split shifted aligned lithography

Heat Transfer and Its Effect on Solidification in Combined Mould

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Journal of Iron and Steel Research International 2005年第6期12卷 20-22,36页

作者： QIU Sheng-tao TAO hong-biao TANG hong-wei ZHANG Hui zhao Pei Central Iron and Steel Research Institute Beijing 100081 China

The nucleation can be enhanced by decreasing the superheat of molten steel, thus reducing temperature gradient on the solidification front can retard the growth of columnar crystals and enlarge the equiaxed zone in continuous casting strand. The billets with equiaxed zone more than 90% were cast with a combined mould and the heat flux was measured. The heat transfer of the combined mould and traditional mould was compared. The resuits show that under same casting conditions, the temperature gradient on the solidification front in the combined mould is smaller than that in traditional mould at a distance within 0-150 mm from the meniscus.

关键词： combined mould heat transfer temperature gradient equiaxed zone

Infrared microspectroscopy beamline BL06B at SSRF

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Nuclear Science and Techniques 2024年第1期35卷 10-17页

作者： Te Ji Hua-Chun Zhu wei-wei Peng Jie Wang hong-wei zhao Ai-Guo Li Min Chen Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210China

The infrared microspectroscopy beamline(BL06B) is a phase Ⅱ beamline project at the Shanghai Synchrotron Radiation Facility(SSRF). The construction and optical alignment of BL06B were completed by the end of 2020. By 2021, it became accessible to users. The synchrotron radiation infrared(SRIR) source included edge radiation(ER) and bending magnet radiation(BMR). The extracted angles in the horizontal and vertical directions were 40 and 20 mrad, respectively. The photon flux, spectral resolution, and focused spot size were measured at the BL06B endstation, and the experimental results were consistent with theoretical calculations. SRIR light has a small divergence angle, high brightness, and a wide wavelength range. As a source of IR microscopy, it can easily focus on a diffraction-limited spatial resolution with a high signal-to-noise ratio(SNR). The BL06B endstation can be applied in a wide range of research fields, including materials, chemistry, biology, geophysics, and pharmacology.

关键词： Synchrotron radiation Infrared beamline Infrared microspectroscopy

Behind-plate overpressure effect of steel-encased reactive material projectile impacting thin aluminum plate

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Defence Technology（防务技术） 2022年第5期18卷 723-734页

作者： Qing-bo Yu Jia-hao Zhang hong-wei zhao Yan-wen Xiao Hai-fu Wang Beijing Institute of Technology State Key Laboratory of Explosion Science and TechnologyBeijing100081China Academy of the Rocket Force Beijing100094China Equipment Project Management Center Army Equipment DepartmentBeijing100072China

Ballistic impact and sealed chamber tests were performed on the steel-encased reactive material projectile(SERMP)to understand its behind-plate overpressure effect when impacting the thin aluminum *** reactive material encased with a 1.5 mm thick 30CrMnSiNi2A steel shell was launched onto the initially sealed test chamber with a 3 mm thick 2024-T3 thin aluminum cover ***,the overpressure signals in the test chamber were recorded by pressure *** experimental results indicate an unusual behind-plate overpressure effect:as the density of the projectile increases from 6.43 g/cm^(3) to 7.58 g/cm^(3) by increasing the content of tungsten powder,although its total chemical energy decreases,it produces a higher behind-target overpressure at a lower impact velocity.A theoretical model is proposed to predict the reaction length of reactive material inside the projectile based on one-dimensional shock wave theory to understand this unexpected *** addition,the deviation between the actual energy release and the theoretical calculation results,also the variation of overpressure rise time are analyzed and *** the analyses show,when the SERMP successfully penetrates the cover plate,an increasing density of the reactive material inside the projectile always means that the delaying rarefaction wave effect,an increase of its internal pressure and strain rate *** factors lead to the increase of the overpressure limit velocity and reaction extent of the reactive material,while the overpressure rise time decreases.

关键词： Reactive materials Steel-encased reactive material projectile Over-pressure effect Overpressure limit velocity Energy release

Micro-porous TiO2 thin films grown on surface of Ti substrate

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中国有色金属学会会刊：英文版 2004年第Z1期14卷 178-181页

作者： WU Xiao-hong QIN wei JIANG zhao-hua HU Xin-guo Li Qing-fen Department of Applied Chemistry Harbin Institute of Technology Harbin 150001 China School of Mechanics and Electronics Engineering Harbin Engineering University Harbin 150001 China Department of Applied Chemistry Harbin Institute of Technology Harbin 150001 China Department of Applied Chemistry Harbin Institute of Technology Harbin 150001 China Department of Applied Chemistry Harbin Institute of Technology Harbin 150001 China School of Mechanics and Electronics EngineeringHarbin Engineering University Harbin 150001 China

Microporous titanium dioxide thin films have been grown on titanium plates by the micro-plasma oxidation method with different current densities (4, 6, 10 and 14 A/dm2). X-ray diffraction, scanning electronic microscopy and UV-Vis spectrophotometry were used to characterize the films. It is found that the films grown are microporous and consist of crystalline titanium dioxide. The micropore size and the content of anatase and rutile TiO2 phase increase with the applied voltage. The relatively higher degradation efficiency for rhodamine B is obtained in the film produced with a current density of 10 A/dm2.

关键词： micro-plasma oxidation TiO2 thin film photo-catalytic activity rhodamine B

Novel Crystallization Behaviors of Zr-Based Metallic Glass Under Thermo-Mechanical Coupled Fatigue Loading Condition

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Acta Metallurgica Sinica(English Letters) 2019年第7期32卷 797-802页

作者： Zhi-Chao Ma Xiao-Xi Ma hong-wei zhao Fu Zhang Li-Ming Zhou Lu-Quan Ren School of Mechanical and Aerospace Engineering Jilin University Changchun 130025 China Key Laboratory of Bionic Engineering Ministry of Education Jilin University Changchun 130025. China

Novel crystallization behaviors of Zr55Cu30Al10Ni5 bulk metallic glass are investigated. On the one hand, mixed oxides, including CuO, CuAlO2, CuA12O4 and ZrO2, show sequential oxidation process determined by coupling effects of specific cyclic load and temperature. On the other hand, at a temperature (100℃) by far lower than Tg of 412 ℃, under cyclic loading condition, non-oxidized binary alloy CuZr2 is precipitated;the thermo-mechanical coupled effects of temperature below Tg, and fatigue accumulation on the non-oxidized crystallization behaviors are revealed. Meanwhile, at a constant temperature of 400 ℃, by comparing among the XRD patterns, respectively, obtained from tensile, creep and fatigue fractures, the dominating effect of cyclic load on the generation of non-oxidized CuZr2 is verified. Furthermore, the crystallization behavior of amorphous phases under cyclic loading condition is observed through TEM micrograph and diffraction pattern at 100℃.

关键词： Bulk metallic glass Fatigue Thermo-mechanical coupling Crystallization