检索结果-南通市图书馆

Advances in Lung Cancer 2015年第1期4卷 1-7页

作者： Doo Yun lee Joon Seok Park Hae Chul Jung Eun Seol Byun Seok Jin Haam sung soo lee Department of Thoracic Cardiovascular Surgery Bundang CHA Medical Center CHA University Kyunggido Korea Department of Thoracic Cardiovascular Surgery Gangnam Severance Hospital College of Medicine Yonsei University Seoul Korea

Lung cancer is one of the most aggressive and lethal form of cancers. Patients with far advanced lung cancer are treated by chemotherapy with or without radiotherapy. However, median survival of these patients is less than 6 months. To increase survival and quality of life for these patients, various forms of complementary treatments have been tried in clinical practices, and oncothermia is supposed to be one of the promising candidates. From May 2008 to November 2013, 4 patients with far advanced lung adenocarcinoma (stages IIIB and IV) were treated with oncothermia in addition to conventional chemotherapy at Gangnam Severance Hospital and Bundang CHA Hospital. All these patients have survived for more than 2 years.

关键词： Lung Cancer Chemotherapy

Regulation of sleep by astrocytes in the hypothalamic ventrolateral preoptic nucleus

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第4期20卷 1098-1100页

作者： Jae-Hong Kim Ruqayya Afridi Il-sung Jang Maan Gee lee Kyoungho Suk Brain Korea 21 four KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of DentistryKyungpook National UniversityDaeguRepublic of Korea Brain Science&Engineering Institute Kyungpook National UniversityDaeguRepublic of Korea

Astrocytes are functionally dynamic cells that support neurons in multiple ways throughout an organism’s *** astrocytic regulation of neuronal activity has been increasingly recognized in recent *** are now recognized as playing a more complex role than mere bystanders in the central nervous ***,their role in regulating the sleep neurocircuitry is not well *** this perspective,we highlight the role of astrocytes in sleep modulation,with a particular focus on regulatory mechanisms related to the ventrolateral preoptic nucleus(VLPO)of the *** briefly discuss recent literature reporting the role of VLPO astrocytes in regulating sleep-associated behaviors.

关键词： sleep ventrolateral astrocytes

Aligned Ion Conduction Pathway of Polyrotaxane‑Based Electrolyte with Dispersed Hydrophobic Chains for Solid‑State Lithium–Oxygen Batteries

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第2期17卷 169-186页

作者： Bitgaram Kim Myeong‑Chang sung Gwang‑Hee lee Byoungjoon Hwang Sojung Seo Ji‑Hun Seo Dong‑Wan Kim Department of Materials Science and Engineering Korea University145 Anam‑RoSeongbuk‑GuSeoul 02841Republic of Korea School of Civil Environmental and Architectural EngineeringKorea University145 Anam‑RoSeongbuk‑GuSeoul 02841Republic of Korea Materials Science and Chemical Engineering Center Institute for Advanced Engineering(IAE)Yongin 17180Republic of Korea

A critical challenge hindering the practical application of lithium–oxygen batteries(LOBs)is the inevitable problems associated with liquid electrolytes,such as evaporation and safety *** study addresses these problems by proposing a modified polyrotaxane(mPR)-based solid polymer electrolyte(SPE)design that simultaneously mitigates solvent-related problems and improves ***-SPE exhibits high ion conductivity(2.8×10^(−3)S cm^(−1)at 25℃)through aligned ion conduction pathways and provides electrode protection ability through hydrophobic chain *** this mPR-SPE into solid-state LOBs resulted in stable potentials over 300 *** situ Raman spectroscopy reveals the presence of an LiO_(2)intermediate alongside Li_(2)O_(2)during oxygen *** situ X-ray diffraction confirm the ability of the SPE to hinder the permeation of oxygen and moisture,as demonstrated by the air permeability *** present study suggests that maintaining a low residual solvent while achieving high ionic conductivity is crucial for restricting the sub-reactions of solid-state LOBs.

关键词： Solid polymer electrolyte Lithium-oxygen batteries Polyrotaxane ion conductivity Hydrophobic chain

Clinical features of strabismus and nystagmus in bilateral congenital cataracts

在线全文

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2018年第5期11卷 813-817页

作者： sung soo Hwang Wan soo Kim soo Jung lee Department of Ophthalmology Haeundae Paik Hospital Inje University College of Medicine Busan 48108 Korea Kim Wan soo Eye Clinic Busan 48266 Korea

AIM：To evaluate the prevalence,clinical features,and the factors affecting onset of strabismus and nystagmus in patients with bilateral congenital ***：This study evaluated 116 eyes of 58 patients who underwent lens removal for the treatment of bilateral congenital cataracts between January 1999 and January *** presence and type of strabismus and nystagmus were determined before and after *** of strabismus and final visual acuity were compared in patients with and without *** were divided into three groups（orthotropia/orthotropia,orthotropia/strabismus,and strabismus/strabismus） according to their preoperative and postoperative ocular *** at cataract surgery and associations of nystagmus and primary intraocular lens（IOL） implantation with strabismus were ***：Six patients（10.3%） had strabismus preoperatively and an additional 11（19.0%） developed postoperative *** was more common than esotropia both preoperatively and *** patients（31.0%） had postoperative nystagmus,with sensory nystagmus being the most common *** the 18 patients with nystagmus,10 had strabismus,with exotropia being more common than *** visual acuity was poor in patients with *** at cataract surgery and rate of primary IOL implantation were significantly lower,and postoperative nystagmus was more common,in the orthotropia/strabismus group than in the other two ***：Exotropia and sensory nystagmus are common in patients with bilateral congenital *** at cataract surgery and rate of IOL implantation are lowerand nystagmus more common in patients with postoperative onset of *** is associated with poor visual prognosis.

关键词： bilateral congenital cataracts strabismus nystagmus

Dynamic deformation behavior and microstructural evolution during high-speed rolling of Mg alloy having non-basal texture

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2019年第4期35卷 473-482页

作者： Sang-Hoon Kim Jeong Hun lee Chong soo lee Jonghun Yoon sung Hyuk Park School of Materials Science and Engineering Kyungpook National University Ulsan Regional Division Korea Institute of Industrial Technology Graduate Institute of Ferrous Technology Pohang University of Science and Technology Department of Mechanical Engineering Hanyang University

The dynamic deformation behaviors and resultant microstructural variations during high-speed rolling(HSR) of a Mg alloy with a non-basal texture are investigated. To this end, AZ31 alloy samples in which the basal poles of most grains are predominantly aligned parallel to the transverse direction(TD) are subjected to hot rolling with different reductions at a rolling speed of 470 m/min. The initial grains with a TD texture are favorable for {10–12} twinning under compression along the normal direction(ND); as a result, {10–12} twins are extensively formed in the material during HSR, and this consequently results in a drastic evolution of texture from the TD texture to the ND texture and a reduction in the grain size. After the initial grains are completely twinned by the {10–12} twinning mechanism, {10–11} contraction twins and {10–11}-{10–12} double twins are formed in the {10–12} twinned grains by further *** the contraction twins and double twins have crystallographic orientations that are favorable for basal slip during HSR, dislocations easily accumulate in these twins and fine recrystallized grains nucleate in the twins to reduce the increased internal strain energy. Until a rolling reduction of 20%, {10–12}twinning is the main mechanism governing the microstructural change during HSR, and subsequently,the microstructural evolution is dominated by the formation of contraction twins and double twins and the dynamic recrystallization in these twins. With an increase in the rolling reduction, the average grain size and internal strain energy of the high-speed-rolled(HSRed) samples decrease and the basal texture evolves from the TD texture to the ND texture more effectively. As a result, the 80% HSRed sample, which is subjected to a large strain at a high strain rate in a single rolling pass, exhibits a fully recrystallized microstructure consisting of equiaxed fine grains and has an ND basal texture without a TD texture component.

关键词： Magnesium alloy High-speed rolling Texture Dynamic recrystallization Twinning

Formation and Characterization of Plasma Sprayed Photocatalytic TiO2- ZnO Nano- Compounded Coatings

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2004年第z2期22卷 162-166页

作者： lee soo Wohn Aum Ho sung Hur Bo Young Chen Huang Division of Materials and Chemical Engineering Sun Moon UniversityAsanChungnam 336708Korea Division of Mechanical and Control EngineeringSun Moon UniversityAsanChungnam 336708Korea Division of Materials EngineeringGyeong Sang National UniversityChinju 660701Korea Division of Materials and Chemical EngineeringSun Moon UniversityAsanChungnam 336708Korea

Two kinds of TiO2-ZnO nano-compounded powders aggregated by spray-drying process and evaporation method were used to deposit photocatalytic coatings by atmospheric plasma spraying technique. The phase compositions, morphologies of the agglomerated TiO2-ZnO powders and the as-sprayed coating were characterized using X-ray diffraction (XRD) and field emission scanning electron microscope (FESEM) respectively. Furthermore, roughness measurements were carried out on their surfaces of the plasma sprayed TiO2-ZnO nano-comPounded coatings. Compared with the TiO2ZnO nano-compounded coating deposited from the spray-dried powder, it was found that the TiO2-ZnO nano-compounded coating deposited from the evaporated powder possesses higher anatase phase. It is ascribed to the existing of partially melted or non-melted microstructure in the TiO2-ZnO coating deposited from the evaporated powder. The partially-meltedor non-melted microstructure was retained from the starting agglomerated powder. This microstructure is beneficial to improve the photocatalytic properties of plasma sprayed TiO2-ZnO nano-compounded coatings.

关键词： plasma spraying spray-drying evaporation characterization TiO2-ZnO rare earths

Microstructure and corrosion resistance of a Mg2Sn-dispersed Mg alloy subjected to pulsed electron beam treatment

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Magnesium and Alloys 2020年第2期8卷 345-351页

作者： Daseul lee Beomcheol Kim soo-Min Baek Jisoo Kim Hyung Wook Park Jung Gu lee sung soo Park School of Materials Science and Engineering Ulsan National Institute of Science and TechnologyUlsan 44919Republic of Korea School of Mechanical Aerospace and Nuclear EngineeringUlsan National Institute of Science and TechnologyUlsan 44919Republic of Korea School of Materials Science and Engineering University of UlsanUlsan 44610Republic of Korea

We report that the corrosion resistance of a Mg-Sn-based alloy with MgzSn precipitates can be considerably improved by surface modification using pulsed electron beam *** alloy subjected to a pulse electron beam treatment showed a modified surface layer with a thickness of〜12 μm,appearing more resistant to corrosion attack than the bare surface of the *** 0.6 M NaCl solution,the alloys with and without the surface modification exhibited average corrosion rates of 4.3 and 8.1 mm y^-1,*** improved corrosion resistance was attributed to reduced cathodic activation,resulting from the surficial reduction of relatively noble Mg2Sn precipitates.

关键词： Magnesium alloy Mg2Sn Intermetallic compound Pulsed electron beam treatment Corrosion

Hyperoxia accelerates progression of hepatic fibrosis by up-regulation of transforming growth factor-β expression

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2014年第11期20卷 3011-3017页

作者： Sang Hwa lee sung-Im Do Hyun-soo Kim Department of Pathology Aerospace Medicine Research CenterAerospace Medical CenterRepublic of Korea Air ForceChungcheongbuk-do 363-849South Korea Department of Pathology Kangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoul 110-746South Korea

AIM: To investigate the effect of hypoxia or hyperoxia on the progression of hepatic fibrosis and to examine the role of transforming growth factor-β (TGF-β) in the livers of rats exposed to hypoxic or hyperoxic con... 详细信息

关键词： Hepatic fibrosis, Cirrhosis, Hypoxia, Hyperoxia, Transforming growth factor-β

Dynamic recrystallization behavior and microstructural evolution of Mg alloy AZ31 through high-speed rolling

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2018年第10期34卷 1747-1755页

作者： Jeong Hun lee Jong Un lee Sang-Hoon Kim Seok Weon Song Chong soo lee sung Hyuk Park Ulsan Regional Division Korea Institute of Industrial Technology School of Materials Science and Engineering Kyungpook National University Technical Research Laboratories POSCO Graduate Institute of Ferrous Technology Pohang University of Science and Technology

High-speed rolling （HSR） is known to improve the workability of Mg alloys significantly, which makes it possible to impose a large reduction in a single pass without fracture. In the present study, dynamic recrystallization （DRX） behavior and microstructural and textural variations of Mg alloy AZ31 dur-ing a HSR process were investigated by conducting rolling with different imposed reductions in the range of 20%-80% at a high rolling speed of 470 m/min and 400℃. High-strain-rate deformation during HSR suppresses dislocation slips but promotes twinning, which results in the formation of numer-ous twins of several types, i.e., {10-12} extension twins, {10-11} and {10-13} contraction twins, and {10-11}-{10-12} double twins. After twinning, high strain energy is accumulated in twin bands because their crystallographic orientations are favorable for basal slips, leading to subsequent DRX at the twin bands. Accordingly, twinning activation and twinning-induced DRX behavior play crucial roles in accommodating plastic deformation during HSR and in varying microstructure and texture of the high- speed-rolled （HSRed） sheets. Area fraction of fine DRXed grains formed at the twin bands increases with increasing rolling reduction, which is attributed to the combined effects of increased strain, strain rate, and deformation temperature and a decreased critical strain for DRX. Size, internal strain, and texture intensity of the DRXed grains are smaller than those of unDRXed grains. Therefore, as rolling reduction increases, average grain size, stored internal energy, microstructural inhomogeneity, and basal texture intensity of the HSRed sheets gradually decrease owing to an increase in the area fraction of the DRXed grains.

关键词： Magnesium alloy High-speed rolling Twinning Dynamic recrystallization Microstructure

Easy calibration method of vision system for in-situ measurement of strain of thin films

在线全文

学校读者我要写书评

暂无评论

中国有色金属学会会刊：英文版 2009年第B09期19卷 243-249页

作者： Jun-Hyub PARK Dong-Joong KANG Myung-soo SHIN sung-Jo LIM Son-Cheol YU Kwang-soo lee Jong-Eun HA sung-Hoon CHOA Department of Mechatronics Engineering Tongmyong University School of Mechanical Engineering Pusan National University Department of Automotive Engineering Hoseo University Department of Automotive Engineering Seoul National University of Technology Department of Nano/IT Engineering Seoul N ational University of Technology

An easy calibration method was presented for in-situ measurement of displacement in the order of nanometer during micro-tensile test for thin films by using CCD camera as a sensing device. The calibration of the sensing camera in the system is a central element part to measure displacement in the order of nanometer using images taken with the camera. This was accomplished by modeling the optical projection through the camera lens and relative locations between the object and camera in 3D space. A set of known 3D points on a plane where the film is located on is projected to an image plane as input data. These points, known as a calibration points, are then used to estimate the projection parameters of the camera. In the measurement system of the micro-scale by CCD camera, the calibration data acquisition and one-to-one matching steps between the image and 3D planes need precise data extraction procedures and repetitive user's operation to calibrate the measuring devices. The lack of the robust image feature extraction and easy matching prevent the practical use of these methods. A data selection method was proposed to overcome these limitations and offer an easy and convenient calibration of a vision system that has the CCD camera and the 3D reference plane with calibration marks of circular type on the surface of the plane. The method minimizes the user's intervention such as the fine tuning of illumination system and provides an efficient calibration method of the vision system for in-situ axial displacement measurement of the micro-tensile materials.

关键词：标定方法视觉系统原位测试应变薄膜松