检索结果-南通市图书馆

Apolipoprotein A-I binding protein-mediated neuroprotection in glaucomatous neuroinflammation and neurodegeneration

维普期刊数据库评论

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5期20卷 1414-1415页

作者： Sinwoo Hwang Seunghwan Choi Soo-ho Choi Keun-Young kim Yury I.Miller Won-Kyu Ju Hamilton Glaucoma Center and Shiley Eye Institute The Viterbi Family Department of OphthalmologyUniversity of California San DiegoLa JollaCAUSA Department of Medicine University of California San DiegoLa JollaCAUSA National Center for Microscopy and Imaging Research Department of NeurosciencesUniversity of California San DiegoLa JollaCAUSA

Glaucoma is a multifactorial eye disorder that can cause vision loss and irreversible blindness,affecting individ uals aged 40 to 80 yea rs *** to the aging population,it is expected that the number of people affected by glaucoma will surpass 111 million by 2040 as the disease becomes more *** primarily contributes to optic nerve axon loss and the progressive degeneration of retinal ganglion cells (RGCs),subsequently leading to vision impairment.

关键词： irreversible pass primarily

Influence of sulfides on the tribological properties of composites produced by pulse electric current sintering

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2014年第1期21卷 95-103页

作者： Seung ho kim Department of Electronics Engineering Dankook University

Self-lubricating A1203-15wt% ZrO2 composites with sulfides, such as molybdenum disulfide （MoS2） and tungsten disulfide （WSz） serving as solid lubricants, were fabricated by using the pulse electric current sintering （PECS） technique. The coefficient of friction （COF） of the A1203-15wt% ZrO2 composite without/with sulfides was in the range of 0.37-0.48 and 0.27-0.49, respectively. As the amoant of sul- fides increased, the COF and the wear rate decreased. The reduction in COF and wear rate of the sulfide-containing composite is caused by a reduction in shear stresses between the specimen and the tribological medium due to the formation of a lubricating film resulting from the lamellar structure of sulfides located on the worn surface.

关键词： ceramic composites coefficient of friction solid lubricants sulfides wear of materials

Effects of ethanol on the tonicity of corporal tissue and the intracellular Ca^2＋ concentration of human corporal smooth muscle cells

在线全文

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2010年第6期12卷 890-898页

作者： Sung Chul Kam Mee Ree Chae Ji Young kim Seol ho Choo deok Hyun Han Sung Won Lee Department of Urology Samsung Medical Center Sungkyunkwan University School of Medicine Seoul 135-710 Korea

Heavy alcohol consumption is associated with an increased risk of erectile dysfunction （ED）; however, the acute effects of ethanol （EtOH） on penile tissue are not fully understood. We sought to investigate the effects of EtOH on corporal tissue tonicity, as well as the intracellular Ca^2＋ concentration （[Ca^2＋]i） and potassium channel activity of corporal smooth muscle. Strips of corpus cavernosum （CC） from rabbits were mounted in organ baths for isometric tension studies. Electrical field stimulation （EFS） was applied to strips precontracted with 10 μmol L^-1 phenylephrine as a control. EtOH was then added to the organ bath and incubated before EFS. The [Ca^2＋]i levels were monitored by the ratio of fura-2 fluorescence intensities using the fura-2 loading method. Single-channel and whole-cell currents were recorded by the conventional patch-clamp technique in short-term cultured smooth muscle cells from human CC tissue. The corpus cavernosal relaxant response of EFS was decreased in proportion to the concentration of EtOH. EtOH induced a sustained increase in [Ca^2＋]i in a dose-dependent manner, Extracellular application of EtOH significantly increased whole-cell K^＋ currents in a concentration-dependent manner （P 〈 0.05）. EtOH also increased the open probability in cell-attached patches; however, in inside-out patches, the application of EtOH to the intracellular aspect of the patches induced slight inhibition of Ca^2＋-activated potassium channel （KCa） activity. EtOH caused a dose-dependent increase in cavemosal tension by alterations to [Ca^2＋]i. Although EtOH did not affect KCa channels directly, it increased the channel activity by increasing [Ca^2＋]i. The increased corpus cavemosal tone caused by EtOH might be one of the mechanisms of ED after heavy drinking.

关键词： alcohol Ca^2+-activated potassium channel corporal smooth muscle penile erection

Efficient TE-Selective P-I-i-I-N GaAs/Al_( 0.35)Ga_(0.65)As Waveguide Phase Modulator at λ=1.55μm

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

光学学报 2003年第S1期23卷 341-342页

作者： Sun-Pil kim Sang-Sun Lee Seok Lee deok-Ha Woo Sun-ho kim Photonics Research Laboratory Division of Electrical and Computer Engineering Hanyang University 17 Hangdang-Dong Seongdong-Ku Seoul 133-791 Korea Photonics Research Center KIST P.O.Box 131 Cheongryang Seoul 130-650 Korea

We fabricated a phase modulator with significant phase shift for TE mode but negligible for TM mode. The measured phase shift efficiency was 7.9°/*** for TE mode. No modulation was observed for TM mode.

关键词： phase shift

Some New Inverse-type Hilbert-Pachpatte Integral Inequalities

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2004年第1期20卷 57-62页

作者： Young ho kim Department of Applied Mathematics Changwon National UniversityChangwon 641-773Korea

In this paper, some new generalizations of inverse type Hilbert-Pachpatte integral inequalities are proved. The results of this paper reduce to those of Pachpatte (1998, J. Math. Anal. Appl. 226, 166–179) and Zhao an... 详细信息

关键词： Hilbert’s double integral inequality H(?)lder integral inequality Jensen’s inequality Power mean inequality

A comparative study of totally laparoscopic distal gastrectomy versus laparoscopic-assisted distal gastrectomy in gastric cancer patients: Short-term operative outcomes at a high-volume center

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Cancer Research 2018年第5期30卷 537-545页

作者： Won ho Han Amir Ben Yehuda deok-Hee kim Seung Geun Yang Bang Wool Eom hong Man Yoon Young-Woo kim Keun Won Ryu Center for Gastric Cancer National Cancer Center Department of Surgery Assaf Harofeh Medical Center

Objective： Laparoscopic gastrectomy has been established as a standard treatment for early gastric cancer, and its use is increasing recently. Compared with the conventional laparoscopy-assisted distal gastrectomy （LADG）, totally laparoscopic distal gastrectomy （TLDG） involves intracorporeal reconstruction, which can avoid the additional incision, resulting in pain reduction and early recovery. This study aimed to compare the short-term postoperative outcomes of TLDG vs. LADG in gastric cancer in a high-volume ***： A retrospective cohort study was conducted on 1,322 patients who underwent laparoscopic distal gastrectomy from June 2012 to June 2017 at the National Cancer Center, Korea. LAD G was performed in the early period before July 2015, and TLDG was applied in the later period. Postoperative short-term outcomes were compared in terms of complication and clinical course between the two groups. Pain score was measured by rating the pain intensity from 0 to 10 points on postoperative day （POD） 1 and 3. Results： A total of 667 patients underwent LADG and 655 patients underwent TLDG. Clinieopathologic characteristics were not different in both groups. Intraoperative estimated blood loss （EBL） was significantly lower in the TLDG group （P〈0.001）. Postoperative pain scores were significantly lower in the TLDG group than in the LADG group on POD 1 （5.1±1.5 vs. 4.8±1.4, P=0.015）. First flatus passage after operation was significantly earlier in the TLDG group （3.4±0.8 d vs. 3.2±0.6 d, P〈0.001）. There were no differences in postoperative complications and hospital stay between the two groups. Conclusions： Based on the reported short-term postoperative outcomes, TLDG is safe and feasible as well as LADG. Moreover, compared with LADG, TLDG can reduce intraoperative EBL and postoperative pain and enhance the bowel motility in gastric cancer surgery.

关键词： Distal gastrectomy gastric cancer intracorporeal anastomosis laparoscopic surgery

Maintenance of gut microbiome stability for optimum intestinal health in pigs——a review

在线全文

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2023年第3期14卷 853-863页

作者： Santi Devi Upadhaya In ho kim Department of Animal Resource and Science Dankook UniversityNo.29 AnseodongCheonan31116ChoongnamSouth Korea

Pigs are exposed to various challenges such as weaning,environmental stressors,unhealthy diet,diseases and infections during their lifetime which adversely affects the gut *** inability of the pig microbiome to return to the pre-challenge baseline may lead to dysbiosis resulting in the outbreak of ***,the maintenance of gut microbiome diversity,robustness and stability has been influential for optimum intestinal health after *** human and animal researches have focused on more holistic approaches to obtain a robust gut microbiota that provides protection against pathogens and improves the digestive physiology and the immune *** this review,we present an overview of the swine gut microbiota,factors affecting the gut microbiome and the importance of microbial stability in promoting optimal intestinal ***,we discussed the current understanding of nutritional interventions using fibers and pre/probiotics supplementation as non-antibiotic alternatives to maintain microbiota resilience to replace diminished species.

关键词： Microbial diversity Nutritional intervention Perturbation Resilience Swine gut microbiome stability

Exergetical Analysis of Organic Flash Cycle with Two-Phase Expander for Recovery of Finite Thermal Reservoirs

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 2014年第6期23卷 572-579页

作者： Chul ho Han Kyoung hoon kim Department of Intelligent Mechanical Engineering Kumoh National Institute of TechnologyDaehakro 61GumiGyeongbuk 730-701Korea Department of Mechanical Engineering Kumoh National Institute of TechnologyDaehakro 61GumiGyeongbuk 730-701Korea

In this work exergetical performance analysis is carried out based on the second law of thermodynamics for organic flash cycle(OFC) using a two-phase expander instead of throttle expansion in order to recover efficiently finite thermal *** exergy destructions(anergies) at various components of the system are theoretically investigated as well as the exergy *** show that the anergy of heat exchanger or two-phase expander decreases while the anergy of throttle valve increases with increasing flash temperature,and the exergy efficiency has an optimum value with respect to the flash *** the optimal conditions with respect to the flash temperature,exergy efficiency increases with the heating temperature and the component having the largest exergy destruction varies with the flash temperature or heating temperature.

关键词： organic flash cycle(OFC) low grade heat source exergy anecgy

REVIEW 6G and Internet of Things:a survey

在线全文

学校读者我要写书评

暂无评论

Journal of Management Analytics 2021年第2期8卷 316-332页

作者： Jin ho kim College of Business Lewis UniversityRomeovilleILUSA

The 5G networks which have begun to spread worldwide are expected to contribute to an increase in the use of Internet of Things(IoT)technologies and applications,which require massive connectivity,security,and ultra-low ***,it is known that 5G alone is not sufficient for many IoT devices to exchange various types of data in real *** constraints promote the emergence of 6G technologies which can support higher network capacity,lower latency,and faster data transmission than 5G *** understand the current trends in 6G research and their relation to IoT,this paper introduces the main drivers of 6G technology,describes 6G’s enabling technologies,summarizes current 6G research,and introduces the possible applications of 6G to IoT technologies and service areas.

关键词： 6G Internet of Things IoT terahertz extended reality