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多工序机床自动上下料控制系统设计

锻压装备与制造技术 2024年第4期59卷 74-76页

作者：陈尔含郝晓庆刘坤武珊济南和拓自动化科技有限公司山东济南250000

随着科技的发展,机器人因其装卸精度高、免维护、可连续不间断工作等特点在工业生产中得到快速普及应用。本文针对多工位机床上料控制系统的硬件、软件实现进行简要介绍,并对某些功能实现进行了改进优化。

关键词：工业机器人自动上下料控制系统铁屑冲洗

An investigation of gamma ray mass attenuation from 80.1 to 834.86 keV for fabric coating pastes used in textile sector

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Nuclear Science and Techniques 2020年第6期31卷 52-59页

作者： Alev Erenler Tuncay Bayram Yusuf Demirel erhan Cengiz Rıza Bayrak Gerze Vocational School Sinop UniversitySinopTurkey Department of Physics Karadeniz Technical University61080 TrabzonTurkey Department of Engineering Fundamental Sciences Alanya Alaaddin Keykubat UniversityAntalyaTurkey Vocational School of Health Services Sinop UniversitySinopTurkey

In the present study,we investigate several textile coating pastes used in the market based on their radiation protection capability for gamma *** gamma ray mass absorption coefficients of some coating pastes doped with antimony,boron and silver elements have been *** has been determined that the gamma ray mass attenuation coefficient decreases rapidly as the energy of the gamma rays *** was determined that the doping of the main printing paste with silver and antimony considerably increased the gamma ray absorption capability of main ***,the doping of the paste with boron reduces the mass absorption of gamma *** particular,the gamma ray mass absorption power of the main paste doped with silver and antimony was determined to be useful in the gamma energy range from 80 to *** indicates that the newly doped textile material may be considered for radiation protection in the case of low-energy gamma rays.

关键词： Gamma ray absorption Radiation protection Printing pastes antimony silver

Effect of acupuncture therapy on fracture healing in rats with femur fractures

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Journal of Traditional Chinese Medicine 2020年第2期40卷 275-283页

作者： Seval Yilmaz Emre Kaya erhan Yilmaz Ahmet Kavakli Suleyman Gurbuz Mustafa Ozkaraca Firat University Faculty of Veterinary MedicineDepartment of BiochemistryElazig 23119Turkey Firat University Faculty of MedicineDepartment of Orthopedics and TraumatologyElazig 23119Turkey Firat University Faculty of MedicineDepartment of AnatomyElazig 23119Turkey Ataturk University Faculty of Veterinary MedicineDepartment of PathologyErzurum 25240Turkey

OBJECTIVE: To investigate the effect of acupuncture therapy on fracture healing in rats with femur ***: A total of 10 groups were formed;control group, groups sacrificed on 7 th, 14 th, and 21 st days of fracture formation, groups to which acupuncture was applied for 7, 14, and 21 d, groups to which fracture and acupuncture were applied for 7,14, and 21 d. A transverse fracture line was formed in femurs of rats by using a Gigli saw. The Kirschner wire was driven retrograde down from the fracture line to proximal part of the bone and then, the fracture was fixed towards distal part. Acupuncture was applied to the rats for 7, 14, and 21 d as 4 sessions per week after formation of the ***: Malondialdehyde(MDA), reduced glutathione(GSH) levels, catalase(CAT), glutathione-Stransferase(GST), superoxide dismutase(SOD), and glucose-6-phosphate dehydrogenase(G6 PD) activities were measured. Despite the increased MDA levels, G6 PD and SOD activities reduced during the fracture healing. There was a statistically significant increase in MDA, GSH levels, and G6 PD activity in fracture groups compared to control group, but CAT, GST, and SOD activities decreased. The use of acupuncture enhanced callus development and bone mineralization during bone ***: The acupuncture therapy can affect suppression of the effects of free oxygen radicals and regulation of the antioxidant enzyme activity in fracture healing. Thus, it is suggested that acupuncture treatment would be beneficial for fracture healing in order to eliminate the negative effects induced by oxygen free radicals.

关键词： Femur Fracture healing Acupuncture Malondialdehyde Antioxidants

Magnetic-porous microspheres with synergistic catalytic activity of small-sized gold nanoparticles and titania matrix

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Frontiers of Chemical Science and Engineering 2019年第3期13卷 574-585页

作者： Kadriye Ozlem Hamaloglu Ebru Sag Cigdem Kip erhan Senlik Berna Saracoglu Kaya Ali Tuncel Hacettepe University Chemical Engineering DepartmentAnkaraTurkey Cumhuriyet University Chemical Engineering DepartmentSivasTurkey

Fe3O4 nanoparticles immobilized on porous titania in micron-size range were decorated with smallsized gold nanoparticles and used as a plasmonic catalyst for the reduction of 4-nitrophenol. Monodisperse-porous magnetic titania microspheres were synthesized with bimodal pore-size distribution by the sol-gel templating method. Small-sized gold nanoparticles obtained by the Martin method were attached onto the aminated form of the magnetic titania microspheres. A significant enhancement in the catalytic activity was observed using the gold nanoparticle-decorated magnetic titania microspheres compared to gold nanoparticle-decorated magnetic silica microspheres because of the synergistic effect between small-sized gold nanoparticles and titania. The synergistic effect for gold nanoparticle-attached magnetic titania microspheres could be explained by surface plasmon resonance-induced transfer of hot electrons from gold nanoparticles to the conduction band of titania. Using the proposed catalyst, 4-nitrophenol could be converted to 4-aminophenol in an aqueous solution within 0.5 min. The 4-nitrophenol reduction rates were 2.5-79.3 times higher than those obtained with similar plasmonic catalysts. The selection of micron-size, magnetic, and porous titania microspheres as a support material for the immobilization of small-sized gold nanoparticles provided a recoverable plasmonic catalyst with high reduction ability.

关键词： small-sized gold nanoparticles magnetic titania microspheres sol-gel template synthesis plasmonic catalysis 4-nitrophenol

Chronic administration of sildenafil improves erectile function in a rat model of chronic renal failure

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Asian Journal of Andrology 2015年第5期17卷 797-801,I0008-I0009页

作者： Nilgun Gurbuz Arif Kol Tumay Ipekci erhan Ates Asli Baykal Mustafa F Usta Department of Biochemistry Akdeniz University School of Medicine Antalya Turkey Department of Urology Section of Andrology Akdeniz University School of Medicine Antalya Turkey

The relationship between erectile dysfunction （ED） and chronic renal failure （CRF） has been reported in several studies. This study aimed to investigate whether the chronic use of sildenafil could enhance the erectile capacity in CRF-induced rats. In addition, we assessed the effect of that treatment on certain molecules, which have been suggested to play crucial roles in erectile physiology and CRF-related ED as well. Three groups of animals were utilized：（1） age-matched control rats, （2） CRF-induced rats, （3） CRF-induced rats treated with chronic administration of sildenafil （5 mg kg^-1 p.o. for 6 weeks [treatment started after 6 weeks of CRF induction]）. At 3 months, all animals underwent cavernosal nerve stimulation （CNS） to assess erectile function. Penile tissue advanced glycation end products （AGE＇s）/5-hydroxymethyl-2-furaldehyde, malondialdehyde （MDA）, cGMP （ELISA）, inducible nitric oxide synthase （iNOS） and neuronal NOS （nNOS）（Western blot） analyses were performed in all rat groups. CRF-induced rats had a significant decrease in erectile function when compared to control rats （P 〈 0.05）. The increase in both intracavernosal pressure （ICP） and area under the curve of CRF-induced rats treated with sildenafil （Group 3） was greater than CRF-induced rats （Group 2）. Additionally, sildenafil treatment decreased AGE, MDA and iNOS levels, while it preserved nNOS and cGMP contents in CRF-induced penile tissue. Decreased AGE, MDA, iNOS and increased nNOS, cGMP levels at the sildenafil-treated group increased both ICP and Total ICP to CNS, which led to improve erectile function in CRF-induced rats. The results of the present study revealed the therapeutic effect of chronic sildenafil administration on erectile function in CRF-induced rats.

关键词： chronic renal failure erectile function sildenafil

The effect of perirenal fat stranding on infectious complications after ureterorenoscopy in patients with ureteral calculi

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Asian Journal of Urology 2022年第3期9卷 307-312页

作者： erhan Demirelli Ercan Ogreden Cemil Bayraktar Alptekin Tosun Ural Oguz Giresun University Faculty of MedicineDepartment of UrologyGiresunTurkey Ministry of Health Kayseri City HospitalDepartment of UrologyKayseriTurkey Giresun University Faculty of MedicineDepartment of RadiologyGiresunTurkey

Objective:Perirenal fat stranding(PFS)is linear areas of soft-tissue attenuation in the perirenal space on non-contrast computed *** present study aimed to investigate whether PFS is associated with infectious complications after ureterorenoscopy(URS)in patients with ureteral calculi in any ***:The data of 602 patients with ureteral stones who underwent URS were analyzed *** patients were divided into two groups as Group 1(PFS not detected)and Group 2(PFS detected).Gender,and age of patients,size,side,and location of the stone,operation time,double-J stent insertion status,perioperative ureter injury,postoperative infection after URS and related complications,and duration of hospital stay were ***:While PFS was not detected in 530 patients,PFS was detected in 72 *** mean age,male/female ratio,side and localization of the stones,operation time,and perioperative insertion of the double-J after lithotripsy were statistically similar(p>0.05).The median stone diameter was smaller in Group 2(9 mm vs.8 mm)(p=0.033).Fever was observed in 30 and 38 patients in Group 1 and Group 2,respectively(p=0.0001).Urinary tract infection was detected in 24 and 27 patients in Group 1 and Group 2,respectively(p=0.0001).The urosepsis did not occur in any patients in Group 1,whereas 8(11.1%)patients in Group 2 experienced urosepsis(p=0.0001).Conclusion:According to the results of the present study,patients with ureteral stones accompanied by PFS are much more prone to ureteral injuries and infectious complications such as urinary tract infection,fever,and sepsis after URS.

关键词： Perirenal fat stranding Infective complications Ureterorenoscopy Ureteral stones Double-J stent

Chemical Effect on K Shell X-ray Fluorescence Parameters and Radiative Auger Ratios of Co, Ni, Cu, and Zn Complexes

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Chinese Journal of Chemical Physics 2010年第2期23卷 138-144,I0001页

作者： erhan Cengiz Zekeriya Biyiklioglu Nuray Kup Ayhkcl Volkan Aylikci Gokhan Apaydin Engin Tirasglu Halit Kantekin 黑海技术大学理学院物理系特拉布宗61080土耳其黑海技术大学理学院化学系特拉布宗61080土耳其

The production cross-sections, intensity ratios, and radiative Auger intensity ratios of Co, Ni, Cu, and Zn elements in different complexes were measured. The chemical effects on the K shell fluorescence parameters and the radiative Auger intensity ratios of these elements were investigated and the changes in these parameters were interpreted according to the charge transfer process. The samples were excited by 59.5 keV γ-rays from a ^241Am annular radioactive source. K X-rays emitted by samples were counted by an Ultra-LEGe detector with a resolution of 150 eV at 5.9 keV.

关键词： Charge transfer Cross-section Radiative Auger intensity ratio Ultra-LEGe detector Chemical effect

Approaching intermolecular interactions and membrane activity of taxol by FTIR Spectroscopy-implications for anticancer therapeutics

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Health 2010年第8期2卷 832-835页

作者： erhan erhan Süleymanoglu 不详

We studied the incorporation of hydrophobic drug Taxol into a solid lipid matrices by FTIR spectroscopy. Lipid arrays containing different molar fractions of the drug were made and deposited on the spectrometer glass window substrates for obtaining multilayer stacks. The drug induced an alteration of lipid array spacings, indicating the drug-lipid recognition. Using excess amounts of Taxol provide information on extrapolations on its cellular solubility in biomembranes. The data obtained could be used further for developing novel anticancer drug formulations, as well as for elucidating its novel cellular pharmacological targets.

关键词： Antineoplastic Drugs Taxol-Membrane Interactions Structural Changes FTIR Spectroscopy

Cytotoxic, apoptotic and cell migration inhibitory effects of atranorin on SPC212 mesothelioma cells

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Asian Pacific Journal of Tropical Biomedicine 2019年第7期9卷 299-306页

作者： erhan Sahin Sinem Dabagoglu Psav Ilker Avan Mehmet Candan Varol Sahinturk Ayse Tansu Koparal Histology and Embryology Department Medicine SchoolEskisehir Osmangazi UniversityEskisehirTurkey Biology Department Faculty of ScienceEskisehir Technical UniversityEskisehirTurkey Chemistry Department Faculty of ScienceEskisehir Technical UniversityEskisehirTurkey

Objective: To investigate the effects of atranorin, a lichen secondary metabolite, on SPC212 malignant mesothelioma cells in vitro. Methods: SPC212 malignant mesothelioma cell line was used. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used to evaluate cytotoxic effects of atranorin and cisplatin at 24, 48 and 72 h. Hematoxylin-eosin staining and 4’,6-diamidino-2-phenylindole, dihydrochloride staining were used for determining cell and nucleus morphology, respectively. Wound healing assay was used for investigating cell migration. The xCELLigence real-time cell analysis system was used for determining cell ***: Atranorin at 5-450 μM decreased cell viability at 24, 48 and 72 h. IC50 values of atranorin were 300.94, 292.6 and 278.02 μM at 24, 48 and 72 h, respectively;meanwhile, the IC50 values of cisplatin were 128.00, 34.37 and 17.05 μM at 24, 48 and 72 h, respectively. Furthermore, atranorin disrupted cell and nuclear morphology with increasing concentrations. Atranorin significantly reduced cell migration by 38%, 37% and 35% at 300, 250 and 200 μM, respectively(P<0.000). Atranorin at 160-450 μM decreased cell proliferation at 72 h(P<0.000).Conclusions: Atranorin has cytotoxic, antiproliferative, apoptotic and cell migration inhibitory effects on SPC212 malignant mesothelioma cancer cells.

关键词： Atranorin Malignant mesothelioma SPC212 cell line