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A high-power narrow-linewidth 1018 nm fiber laser based on a single-mode–few-mode–single-mode structure

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High Power Laser Science and Engineering 2015年第3期3卷 71-74页

作者： man jiang Pu Zhou Hu Xiao Pengfei Ma College of Optoelectronic Science and Engineering National University of Defense Technology

We demonstrate an all-fiber high-power Yb-doped 1018 nm fiber laser with a Gaussian-shaped output beam profile based on a mismatched structure, which consists of a pair of single-mode fiber Bragg gratings and a section of few-mode double-cladding gain fiber. The output power is up to 107.5 W with an optical-to-optical efficiency of 63%, and the 3 d B band is 0.26 nm at this power level. Such a structure of single-mode–few-mode–single-mode fiber oscillator can be used to generate high-power narrow-linewidth lasing with excellent beam quality in other spectral ranges.

关键词： fiber laser 1018 nm laser

A novel cationic collector for silicon removal from collophane using reverse flotation under acidic conditions

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International Journal of Minerals,Metallurgy and Materials 2023年第6期30卷 1038-1047页

作者： Zhongxian Wu Dongping Tao Youjun Tao man jiang Patrick Zhang School of Resources and Environmental Engineering Shandong University of TechnologyZibo 255049China Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education China University of Mining&TechnologyXuzhou 221116China School of Chemical Engineering and Technology China University of Mining&TechnologyXuzhou 221116China Florida Industrial and Phosphate Research Institute Florida Polytechnic UniversityFlorida 33830USA

We analyzed a novel cationic collector using chemical plant byproducts,such as cetyltrimethylammonium bromide(CTAB)and dibutyl phthalate(DBP).Our aim is to establish a highly effective and economical process for the removal of quartz from collophane.A microflotation test with a 25 mg·L^(−1)collector at pH value of 6-10 demonstrates a considerable difference in the floatability of pure quartz and *** tests for a collophane sample subjected to the first reverse flotation for magnesium removal demonstrates that a rough flotation process(using a 0.4 kg·t−1 new collector at pH=6)results in a collophane concentrate with 29.33wt%P_(2)O_(5)grade and 12.66wt%SiO2 at a 79.69wt%P_(2)O_(5)recovery,providing desirable *** studies using Fourier transform infrared spectroscopy,zeta potential,and contact angle measurements show that the adsorption capacity of the new collector for quartz is higher than that for *** synergistic effect of DBP increases the difference in hydrophobicity between quartz and *** maximum defoaming rate of the novel cationic collector reaches 142.8 mL·min−*** is considerably higher than that of a conventional cationic collector.

关键词： cationic collector collophane defoaming quartz reverse flotation

Beneficial effects of antidepressant mirtazapine in functional dyspepsia patients with weight loss

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World Journal of Gastroenterology 2016年第22期22卷 5260-5266页

作者： Shu-man jiang Lin Jia Jing Liu man-man Shi Ming-Zhi Xu Department of Gastroenterology Guangzhou First People’s Hospital Guangzhou Medical University Department of Gastroenterology Guangzhou Nansha Central Hospital Department of Psychology Guangdong General Hospital

AIM: To explore the effects and mechanism of action of antidepressant mirtazapine in functional dyspepsia(FD) patients with weight ***: Sixty depressive FD patients with weight loss were randomly divided into a mirtazapine group(MG), a paroxetine group(PG) or a conventional therapy group(CG) for an 8-wk clinical trial. Adverse effects and treatment response were recorded. The Nepean Dyspepsia Index-symptom(NDSI) checklist and the 17-item Hamilton Rating Scale of Depression(HAMD-17) were used to evaluate dyspepsia and depressive symptoms, respectively. The body composition analyzer was used to measure body weight and fat. Serum hormone levels were measured by ***:(1) After 2 wk of treatment, NDSI scores were significantly lower for the MG than for the PG and CG;(2) After 4 or 8 wk of treatment, HAMD-17 scores were significantly lower for the MG and PG than for the CG;(3) After 8 wk of treatment, patients in the MG experienced a weight gain of 3.58 ± 1.57 kg, which was significantly higher than that observed for patients in the PG and CG. Body fat increased by 2.77 ± 0.14kg, the body fat ratio rose by 4%, and the visceral fat area increased by 7.56 ± 2.25 cm2; and(4) For the MG, serum hormone levels of ghrelin, neuropeptide Y(NPY), motilin(MTL) and gastrin(GAS) were significantly upregulated; in contrast, those of leptin, 5-hydroxytryptamine(5-HT) and cholecystokinin(CCK) were significantly downregulated. CONCLUSION: Mirtazapine not only alleviates symptoms associated with dyspepsia and depression linked to FD in patients with weight loss but also significantly increases body weight(mainly the visceral fat in body fat). The likely mechanism of mirtazapine action is regulation of brain-gut or gastrointestinal hormone levels.

关键词： Mirtazapine Functional dyspepsia weight loss Depression

Behavioral gastroenterology: An emerging system and new frontier of action

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World Journal of Gastroenterology 2017年第33期23卷 6059-6064页

作者： Lin Jia Shu-man jiang Jing Liu Department of Gastroenterology Guangzhou First People’s HospitalGuangzhou Medical University Department of Gastroenterology The Second Affiliated HospitalSouth China University of Technology

Behavioral gastroenterology is a new interdisciplinary science that explores the influence of unhealthy lifestyles and psychological factors on the digestive system and addresses the prevention,diagnosis,treatment,and rehabilitation of digestive diseases. Moreover,the concept of whole-course intervention with a focus on disease prevention and a new model of integrated therapy based on alterations of lifestyle and psychology are being gradually established. This paradigm may substantively impact the prevention and treatment of digestive diseases.

关键词： Behavioral gastroenterology Lifestyle Psychological factors

Intervention of Mirtazapine on gemcitabine-induced mild cachexia in nude mice with pancreatic carcinoma xenografts

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World Journal of Gastroenterology 2012年第22期18卷 2867-2871页

作者： Shu-man jiang Jian-Hua Wu Lin Jia Department of Gastro-enterology Guangzhou Nan Sha Center HospitalGuangzhouFirst Municipal People's Hospital Affiliated with the GuangzhouMedical CollegeGuangzhou 510180Guangdong ProvinceChina

AIM: To investigate the effect of Mirtazapine on tumor growth, food intake, body weight, and nutritional status in gemcitabine-induced mild cachexia. METHODS: Fourteen mice with subcutaneous xenografts of a pancreatic cancer cell line (SW1990) were randomly divided into Mirtazapine and control groups. Either Mirtazapine (10 mg/kg) or saline solution was orally fed to the mice every day after tumor implantation. A model of mild cachexia was then established in both groups by intraperitoneal injection of Gemcitabine (50 mg/kg) 10 d, 13 d, and 16 d after tumor implanta- tion. Tumor size, food intake, body weight, and nutritional status were measured during the experiment. All mice were sacrificed at day 28. RESULTS: (1) After 7 d of gemcitabine administration, body-weight losses of 5%-7% which suggested mild cachexia were measured; (2) No significant difference in tumor size was detected between the Mirtazapine and control groups (P > 0.05); and (3) During the entire experimental period, food intake and body weight were slightly greater for the Mirtazapine group compared with controls (although these differences were not statistically significant). After 21 d, mice in the Mirtazapine group consumed significantly more food than control mice (3.95 ± 0.14 g vs 3.54 ± 0.10 g, P = 0.004). After 25 d, mice in the Mirtazapine group were also significantly heavier than control mice (17.24 ± 0.53 g vs 18.05 ± 0.68 g, P = 0.014). CONCLUSION: Mild cachexia model was successfully established by gemcitabine in pancreatic tumor-bearing mice. Mirtazapine can improve gemcitabine-induced mild cachexia in pancreatic tumor-bearing mice. It was believed to provide a potential therapeutic perspective for further studies on cachexia.

关键词： Pancreatic carcinoma Cachexia Mirtazap-ine Gemcitabine Antidepressant

Non-glomerular Tip Lesion Focal Segmental Glomerulosclerosis as a Negative Predictor in Idiopathic Membranous Nephropathy

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Current Medical Science 2022年第5期42卷 1007-1014页

作者： Hui WANG Cheng WAN man jiang Chun ZHANG Department of Nephrology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China Renal Division University of Freiburg Medical CenterFreiburg 79106Germany

Objective To assess the significance of focal segmental glomerulosclerosis(FSGS)variants on clinicopathological characteristics and short-term outcomes in idiopathic membranous nephropathy(IMN)*** The clinicopathological data of 146 IMN patients diagnosed between December 2016 and March 2019 in our center were collected and *** patients were divided into the pure IMN group,IMN with glomerular tip lesion(GTL)group,and IMN with non-GTL FSGS *** The IMN with non-GTL FSGS and IMN with GTL groups both had higher proportions of patients with hypertension,lower serum albumin,and severe proteinuria,while the IMN with non-GTL FSGS group additionally showed higher blood pressure and serum cholesterol,and lower serum IgG than the IMN group(all Pmanagement of IMN.

关键词： idiopathic membranous nephropathy focal segmental glomerulosclerosis glomerular tip lesion

The rise of two-dimensional tellurium for next-generation electronics and optoelectronics

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Frontiers of physics 2023年第3期18卷 27-50页

作者： Tao Zhu Yao Zhang Xin Wei man jiang Hua Xu State Key Laboratory of Photon-Technology in Western China Energy International Collaborative Center on Photoelectric Technology and Nano Functional MaterialsInstitute of Photonics&Photon TechnologySchool of PhysicsNorthwest UniversityXi’an 710069China Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education Shaanxi Key Laboratory for Advanced Energy DevicesSchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119China

Single-element two-dimensional(2D)tellurium(Te)which possesses an unusual quasi-one-dimensional atomic chain structure is a new member in 2D materials family.2D Te possesses high carrier mobility,wide tunable bandgap,strong light-matter interaction,better environmental stability,and strong anisotropy,making Te exhibit tremendous application potential in next-generation electronic and optoelectronic ***,as an emerging 2D material,the research on fundamental property and device application of Te is still in its ***,this review summarizes the most recent research progresses about the new star 2D Te and discusses its future development ***,the structural features,basic physical properties,and various preparation methods of 2D Te are systemically ***,we emphatically summarize the booming development of 2D Te-based electronic and optoelectronic devices including field effect transistors,photodetectors and van der Waals heterostructure ***,the future challenges,opportunities,and development directions of 2D Te-based electronic and optoelectronic devices are prospected.

关键词： two-dimensional materials tellurium van der Waals heterostructure electronic optoelectronic

Wheat straw-derived magnetic carbon foams: In-situ preparation and tunable high-performance microwave absorption

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Nano Research 2019年第6期12卷 1423-1429页

作者： Guangjun Gou Fanbin Meng Huagao Wang man jiang Wei Wei Zuowan Zhou Key Laboratory of Advanced Technologies of Materials(Ministry of Education) School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China

Recently,biomass-derived three-dimensional (3D) porous carbon materials have been gaining more interest as promising microwave absorbers due to their low cost,vast availability,and ***,a novel 3D interconnected porous magnetic carbon foams are in-situ synthesized via a combination of sol-gel and carbonization process with wheat straw as the carbon source and FeCl3·6H2O as the magnetic regulating *** the process of foams formation,the lignocelluloses from the steam-exploded wheat straw are converted into interconnected carbon sheet networks with hierarchical porous structures,and the precursor FeCl3·6H2O is converted into magnetic nanoparticles uniformly embedded in the porous carbon *** generated magnetic nanoparticles are benefit to enhance the interface polarization and magnetic loss ability to improve the efficient complementarities between the dielectric and magnetic loss,thus increasing the impedance *** obtained sample treated at 600 ℃ displays the best microwave absorption (MA) *** presents a minimal reflection loss (RL) of-43.6 dB at 7.1 GHz and the effective bandwidth (RL mance.

关键词： wheat straw magnetic biomass carbon foams microwave absorption interface polarization impedance matching

Effects of proton pump inhibitors on inflammatory bowel disease:An updated review

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World Journal of Gastroenterology 2024年第21期30卷 2751-2762页

作者： Yu Liang Zhen Meng Xue-Li Ding man jiang Department of Pharmacy The Affiliated Hospital of Qingdao UniversityQingdao 266003Shandong ProvinceChina Department of Intervention The Affiliated Hospital of Qingdao UniversityQingdao 266003Shandong ProvinceChina Department of Gastroenterology The Affiliated Hospital of Qingdao UniversityQingdao 266003Shandong ProvinceChina

Inflammatory bowel disease(IBD)is believed to be caused by various factors,including abnormalities in disease susceptibility genes,environmental factors,immune factors,and intestinal *** pump inhibitors(PPIs)are the primary drugs used to treat acid-related *** are also commonly prescribed to patients with *** studies have suggested a potential association between the use of certain medications,such as PPIs,and the occurrence and progression of *** this review,we summarize the potential impact of PPIs on IBD and analyze the underlying *** findings may provide insights for conducting further investigations into the effects of PPIs on IBD and serve as an important reminder for physicians to exercise caution when prescribing PPIs to patients with IBD.

关键词： Drug safety Proton pump inhibitor Inflammatory bowel disease Ulcerative colitis Crohn’s disease