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Rare recurrent gallstone ileus: A case report

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World Journal of Clinical Cases 2020年第10期8卷 2023-2027页

作者： Hao Jiang Chong Jin jing-gang mo Lie-Zhi Wang Lei Ma Kun-Peng Wang Department of General Surgery Taizhou Central Hospital(Taizhou University Hospital)Taizhou 318000Zhejiang ProvinceChina

BACKGROUND The management of recurrent gallstone ileus(GSI)is unsatisfactory,and there is no consensus on how to reduce the incidence of recurrent *** SUMMARY A 79-year-old man presented to the Emergency Department of our hospital complaining of abdominal *** abdominal computed tomography(CT)scan revealed cholecystolithiasis,intrahepatic bile duct dilatation,gas accumulation,small intestinal obstruction,and circular high-density shadow in the intestinal *** surgery revealed that the small intestine had extensive adhesions,unclear gallbladder exposure,obvious adhesions,and difficult *** obstruction was located 70 cm between the ileum and the ileocecum,which was incarcerated by gallstones,and a simple enterolithotomy was carried *** the third day after the operation,he had passed gas and defecated and had begun a liquid *** the fifth day after the operation,he suddenly experienced abdominal distension and *** CT examination revealed recurrent GSI,and the diameter of the stone was approximately 2.0 cm(consistent with the shape of cholecystolithiasis on the abdominal CT scan before the first operation).The patient’s symptoms were not significantly relieved after conservative *** the ninth day after the operation,emergency enterolithotomy was performed again along the original surgical *** the twentieth day after the second operation,the patient fully recovered and was discharged from the *** We believe that a thorough examination of the bowel and gallbladder for gallstones based on preoperative imaging during surgery and removal of them as far as possible on the premise of ensuring the safety of patients are an effective strategy to reduce the recurrence of GSI.

关键词： Recurrent gallstone ileus Enterolithotomy Cholecystectomy Cholecystolithotomy Case report

Adult duodenal intussusception with horizontal adenoma: A rare case report

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World Journal of Clinical Cases 2020年第15期8卷 3314-3319页

作者： Kun-Peng Wang Hao Jiang Can Kong Lie-Zhi Wang Guo-Yu Wang jing-gang mo Chong Jin Department of General Surgery Taizhou Central Hospital(Taizhou University Hospital)Taizhou 318000Zhejiang ProvinceChina Department of Radiology Taizhou Central Hospital(Taizhou University Hospital)Taizhou 318000Zhejiang ProvinceChina

BACKGROUND Adult duodenal intussusception rarely occurs,and the majority of duodenal adenomas are located in the descending part of the ***,adenomas in the horizontal part of the duodenum presenting as duodenal intussusception in adults are extremely *** SUMMARY A 36-year-old man complained of abdominal pain for 13 *** analysis showed *** resonance cholangiopancreatography and computed tomography revealed a tumor in the horizontal part of the duodenum as the main finding,leading to duodeno-duodenal *** obvious abnormalities were found on endoscopy or upper gastrointestinal *** was diagnosed with duodenal intussusception secondary to duodenal *** showed duodeno-duodenal intussusception and a tumor in the horizontal part of the duodenum near the ascending *** pathology revealed tubular-villous adenoma with low-grade glandular intraepithelial neoplasia(local high-grade intraepithelial neoplasia).He was discharged without *** This case highlights that rational use of computed tomography,magnetic resonance cholangiopancreatography,endoscopy and upper gastrointestinal radiography for preoperative diagnosis and timely surgery is an effective strategy for the treatment of adult duodenal intussusception with duodenal masses.

关键词： Adult duodenal intussusception Duodenal adenoma Horizontal part of the duodenum Intestinal obstruction Case report

Minimally invasive treatment of hepatic hemangioma by transcatheter arterial embolization combined with microwave ablation:A case report

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World Journal of Clinical Cases 2021年第24期9卷 7154-7162页

作者： Lei-Zhi Wang Kun-Peng Wang jing-gang mo Guo-Yu Wang Chong Jin Hao Jiang Yi-Fu Feng Department of General Surgery Taizhou Central Hospital(Taizhou University Hospital)Taizhou 318000Zhejiang ProvinceChina Department of Radiology Taizhou Central Hospital(Taizhou University Hospital)Taizhou 318000Zhejiang ProvinceChina Department of Hepatobiliary Surgery Taizhou Central Hospital(Affiliated Hospital of Taizhou University)Taizhou 510000Zhejiang ProvinceChina

BACKGROUND Hepatic hemangioma is the most common benign tumor of the ***,patients with large hemangiomas that cause compression symptoms or that are at risk of rupture may need further *** is necessary to explore additional minimally invasive and personalized treatment options for *** SUMMARY A 47-year-old woman was diagnosed with a right hepatic hemangioma for more than 10 *** contrast-enhanced computed tomography(CT)and contrast-enhanced ultrasound revealed that there was a large hemangioma in the right liver,with a size of approximately 95 mm×97 mm×117 *** to the patient's refusal of surgical treatment,hepatic artery embolization was performed in the first *** 25 d of liver protection treatment,the liver function indexes decreased to normal ***,ultrasound-guided microwave ablation of the giant hepatic hemangioma was *** days after the treatment,hepatobiliary ultrasonography showed that the hemangioma of the right liver was smaller than the previous size(the volume was reduced by approximately 30%).Then the patient was discharged from the *** year after discharge,CT showed that the hepatic hemangioma had shrunk by about 80%CONCLUSION Transcatheter arterial embolization combined with microwave ablation is a safe and effective minimally invasive treatment for hepatic hemangioma.

关键词： Hepatic hemangioma Transcatheter arterial embolization Microwave ablation Minimally invasive treatment Case report

Effect of pouring time on microstructure and mechanical properties of centrifugal cast Ti-46Al alloy tubes

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China Foundry 2025年

作者： gang Huang Qian Dang Cong-cong Su jing Zhao Chi Zhang Guo-huai Liu Zhao-dong Wang The State Key Laboratory of Rolling and Automation Northeastern University School of Materials Science and Engineering Shenyang University of Technology

The grain size of TiAl alloy castings prepared by traditional casting process is coarse, thus showing poor mechanical properties. In this study, a new type of high performance Ti-46Al alloy tube prepared by vacuum centrifugal casting technology was introduced. This research comprehensively examined the influence of pouring time on the microstructure and mechanical performance of the castings, employing both experimental approaches and ProCast simulation methodologies. The findings indicate that prolonging the pouring time facilitates a microstructural evolution from coarse columnar grains to refined equiaxed grains. Under the condition of pouring temperature of 1,600 °C, rotation speed of 800 r·min-1and pouring time of 6 s, the tensile strength of Ti-46Al alloy at room temperature reaches 650 MPa, and the tensile strength at 800 °C reaches 705 MPa, which is significantly higher than that of traditional as-cast Ti-Al alloy.

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Optimization study on neutron spectrum unfolding based on the least-squares method

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Nuclear Science and Techniques 2018年第8期29卷 193-200页

作者： Hong-Hu Song Yong-gang Yuan Tai-Ping Peng Yang Yang Yong-gang mo jing Wu Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics

The response functions and pulse height spectrum(PHS) of a 2''×2'' BC501A detector were obtained through a general-purpose monte Carlo simulation toolkit,Geant4.A relatively simple but effective method was adopted to unfold the *** regarding the response matrix were proposed to optimize the unfolding *** results indicate that the accuracy of the unfolding can be greatly improved using many incident neutrons with a wide energy range,a proper energy interval,and an appropriate channel width of the response *** above-mentioned method was verified by unfolding three different types of simulated spectrum,the results of which are in good accord with the simulated distribution.

关键词：优化光谱中子学习平方蒙特卡罗模拟反应矩阵 PHS

Preliminary analysis of tritium fuel cycle in Z-pinch-driven fusion–fission hybrid reactor

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Nuclear Science and Techniques 2018年第7期29卷 171-176页

作者： Yong-gang mo Zhi-Lin Chen Hong-Hu Song Yang Yang jing Wu Dong Zhang China Academy of Engineering Physics Institute of Nuclear Physics and Chemistry

Attaining tritium self-sufficiency is indispensable in a Z-pinch-driven fusion–fission hybrid reactor(ZFFR).In this paper,a conceptual design is presented in which the Z-FFR tritium cycle system was divided into eight subsystems.A theoretical analysis of tritium inventory based on the mean residence time was performed to quantitatively obtain the tritium distribution in each *** self-sufficiency judgment criteria were established using a tritium mass flow analysis *** dependency relationships between the burning rate,tritium breeding ratio,extraction efficiency,and tritium self-sufficiency were also specified for the steady state.

关键词：周期系统反应堆混血儿分裂熔化氢燃料流动分析判断标准

艾灸调节circ Pan3/mi R-667-5p/Ghrelin信号通路减轻膝骨关节炎大鼠的软骨病变

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中国组织工程研究 2025年第12期29卷 2475-2483页

作者：廖晴曾静陈峻袁立霞刘刚南方医科大学中医药学院广东省广州市510000 南方科技大学医院广东省深圳市518000 南方医科大学南方医院康复科广东省广州市510000

背景:既往研究表明艾灸能减轻膝骨关节炎软骨病变,延缓膝骨关节炎进展;课题组前期研究中发现调控circPan3/miR-667-5p/Ghrelin信号通路可增强软骨细胞自噬水平,从而在膝骨关节炎中发挥软骨保护作用。目的:基于circPan3/miR-667-5p/Ghre... 详细信息

背景:既往研究表明艾灸能减轻膝骨关节炎软骨病变,延缓膝骨关节炎进展;课题组前期研究中发现调控circPan3/miR-667-5p/Ghrelin信号通路可增强软骨细胞自噬水平,从而在膝骨关节炎中发挥软骨保护作用。目的:基于circPan3/miR-667-5p/Ghrelin信号通路探究艾灸对大鼠膝骨关节炎软骨的影响。方法:SD大鼠随机分为假手术组、模型组和艾灸组(n=10),对后2组大鼠行右后肢膝关节前交叉韧带横断和内侧半月板部分切除术建立膝骨关节炎大鼠模型;假手术组大鼠仅接受关节囊切开术。6周后,艾灸组大鼠每日艾灸“足三里”“肾俞”穴区20 min,持续4周,其余2组不予以特殊处理。4周后通过组织病理学染色观察膝关节滑膜病变和软骨损伤程度,通过酶联免疫吸附实验检测血清中炎症因子白细胞介素6和肿瘤坏死因子α的变化。此外,取上述3组大鼠右侧膝关节软骨细胞分为:正常对照组、模型组和艾灸组,通过Western blot和qRT-PCR检测各组细胞中软骨基质合成代谢分子(Ⅱ型胶原蛋白和Sox9)、基质降解分子(基质金属蛋白酶13和ADAMTS5)、自噬标志物(ATG5、Beclin-1、微管相关蛋白1轻链3)、Ghrelin、CircPan3以及miR-667-5P的表达水平。结果与结论:①治疗4周后,相对于假手术组,模型组大鼠滑膜显著增厚,炎症细胞浸润显著,关节间隙狭窄,软骨表面粗糙不平,变薄,软骨细胞数量减少,滑膜炎和OARSI评分显著升高,白细胞介素6和肿瘤坏死因子α水平明显上调(P<0.0001);与模型组相比,艾灸组滑膜增厚减轻,炎症细胞浸润减少,关节间隙增宽,软骨更光滑完整、变厚,软骨细胞数量增多,滑膜炎和OARSI评分降低,白细胞介素6和肿瘤坏死因子α水平显著降低(P<0.0001)。②体外实验结果表明,与正常对照组相比,模型组软骨细胞基质金属蛋白酶13、ADAMTS5和miR-667-5P表达增多,Ⅱ型胶原蛋白、Sox9、自噬标志物、Ghrelin和Circpan3表达减少(P<0.01);与模型组相比,艾灸可逆转上述指标改变(P<0.01)。③结果说明艾灸可能通过调节circPan3/miR-667-5p/Ghrelin信号通路增强软骨细胞自噬,抑制膝骨关节炎炎症和软骨破坏,对软骨发挥保护作用。

关键词：膝骨关节炎艾灸 ghrelin 软骨自噬大鼠信号通路

Theoretical investigation on water/metal fuel ramjet motor-thermodynamic cycle and thermodynamic calculation

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航空动力学报 2010年第5期25卷 1129-1138页

作者： YANG Ya-jing HE Mao-gang School of Aerospace Xi'an Jiaotong UniversityXi'an 710049China State Key Laboratory of Multiphase Flow in Power Engineering School of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049China

For achieving high-speed requirement of underwater vehicle,a conceptual engine,which utilizes the hydroreactive characteristic of several metals under supercavitation environment,has been put forward. Especially,in order to obtain specific impulse as great as possible,a dual water injection system is taken into account. Then thermodynamic cycle model,which lead the improvement of power plant and energy system,is introduced in detail,and thermal efficiency is also analyzed. Furthermore,for investigating the performance of this kind of engine system,detailed thermodynamic calculation and analysis are achieved. Especially,regarding hydroreactive metal fuel Mg/AP/HTPB as our target fuel-rich propellant,considering its obvious deficient oxygen property and the energy property of magnesium/water reaction,theoretical calculation method is established by integrating chemical non-equilibrium with chemical equilibrium. Accordingly,low limit of primary water/fuel ratio is determined. In addition,the qualitative and quantitative relationship of performance parameters,such as theoretical specific impulse,nozzle exit temperature,characteristic velocity,etc.,versus water/fuel ratio is investigated respectively.

关键词： hydroreactive metal fuel water ramjet thermodynamic cycle thermal efficiency specific impulse

Theoretical Study on the Catalytic Activity and Sulfur Resistibility of Amorphous Alloy Ni-B-P

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Chinese Journal of Structural Chemistry 2007年第3期26卷 273-280页

作者： FANG Zhi-gang GUO jing-Xue School of Chemical Engineering University of Science and Technology Liaoning Anshan 114051 China

In the present paper, one hundred cluster models NinBP （n = 1-6） have been designed and studied by density functional theory （DFT） to get an insight into the local structure, catalytic properties and sulfur resistibility of amorphous alloy Ni-B-P. The configurations in triplet state are found more stable than those in the singlet state. It is found： that as the content of Ni in the clusters increases, the value of Fermi level in clusters fluctuated, which shows that the content of Ni can influence the Fermi level to a certain extent. Based on the Fermi level and DOS, we consider the activity of catalyst in hydrogenation reaction is the best in cluster Ni3BP. On the basis of the charge of clusters NinBP （n = 1 -6）, we conclude the amorphous alloy Ni-B-P with high Ni content has better sulfur resistibility and the best hydrogenation activity, strong sulfur resistibility appears in clusters Ni3BP, and the amorphous alloy Ni60B20P20 with similar proportion is expected to prepare in the future.

关键词： amorphous alloy Ni-B-P DFT catalytic activity sulfur resistibility