检索结果-南通市图书馆

An effective method to reduce residual lithium compounds on Ni-rich Li[Ni0.6Co0.2Mn0.2]O2 active material using a phosphoric acid derived Li3PO4 nanolayer

引用

Nano Research 2015年第5期8卷 1464-1479页

作者： chang-Heum jo Dae-Hyun Cho Hyung-joo Noh Hithshi Yashiro Yang-Kook Sun Seung Taek Myung Department of Nano Engineering Sejong University 98 Gunja-dong Gwangjin-gu Seou1143-747 Republic of Korea Department of Chemical Engineering Iwate University Morioka Iwate 020-8551 Japan Department of Energy Engineering Hanyang University Seongdong-gu Seou1133-791 Republic of Korea

The Ni-rich Li[Ni0.6Co0.2Mn0.2]O2 surface has been modified with H3PO4. After coating at 80 ℃, the products were heated further at a moderate temperature of 500 ℃ in air, when the added H3PO4 transformed to Li3PO4 after reacting with residual LiOH and Li2CO3 on the surface. A thin and uniform smooth nanolayer （〈 10 nm） was observed on the surface of Li[Ni0.6Co0.2Mn0.2]O2 as confirmed by transmission electron microscopy （TEM）. Time-of-flight secondary ion mass spectroscopic （ToF-SIMS） data exhibit the presence of LIP＋, LiPO-, and Li2PO2＋ fragments, indicating the formation of the Li3PO4 coating layer on the surface of the Li[Ni0.6Co0.2Mn0.2]O2. As a result, the amounts of residual lithium compounds, such as LiOH and Li2CO3, are significantly reduced. As a consequence, the LigPO4-coated Li[Ni0.6Co0.2Mn0.2]O2 exhibits noticeable improvement in capacity retention and rate capability due to the reduction of residual LiOH and Li2CO3. Further investigation of the extensively cycled electrodes by X-ray diffraction （XRD）, TEM, and ToF-SIMS demonstrated that the LiBPO4 coating layers have multi-functions： Absorption of water in the electrolyte that lowers the HF level, HF scavenging, and protection of the active materials from deleterious side reactions with the electrolyte during extensive cycling, enabling high capacity retention over 1,000 cycles.

关键词： Li3PO4 coating positive electrode lithium batteries

来源：

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

Spontaneous resolution of gallbladder hematoma in blunt traumatic injury:A case report

引用

World journal of Clinical Cases 2021年第28期9卷 8518-8523页

作者： Hyunseok Jang chang-Hwan Park Yunchul Park Euisung Jeong Naa Lee Jungchul Kim Younggoun jo Division of Trauma Department of SurgeryChonnam National University Medical School and HospitalDong-gu 61469GwangjuSouth Korea Department of Internal Medicine Chonnam National University Medical School and HospitalDong-gu 61469GwangjuSouth Korea

BACKGROUND We report a case of intragallbladder hematoma and biliary tract obstruction caused by blunt gallbladder *** report that the patient was safely treated by conservative treatment after the obstruction was resolved by endoscopic retrograde cholangiopancreatography(ERCP).CASE SUMMARY A 67-year-old man was admitted via the emergency department due to complaints of right-sided abdominal pain that started 2 d *** days prior to presentation,the patient had slipped,fallen and struck his abdomen on a motorcycle *** initial vital signs were *** physical examination,he showed right upper quadrant pain and Murphy’s sign,with decreased bowel ***,he had had a poor appetite for 4 *** had been on aspirin for 2 years due to underlying *** simple radiography revealed a slight *** laboratory findings were as follows:white blood cell count,15.5×103/µL(normal range 4.8×10^(3)–10.8×10^(3));hemoglobin,9.4 g/dL;aspartate aminotransferase/alanine transferase,423/348 U/L;total bilirubin/direct bilirubin,4.45/3.26 mg/dL;-GTP,639 U/L(normal range 5–61 U/L);and C-reactive protein,12.32 mg/dL(0–0.3).Abdominal computed tomography showed a distended gallbladder with edematous wall change and a 55 mm×40 mm *** was observed in both the intrahepatic and common bile duct *** treatment was initiated,and ERCP was performed,with hemobilia found during *** cannulation,the patient’s symptoms were relieved,and after conservative management,the patient was discharged with no further *** 1-month follow-up,the gallbladder hematoma was completely *** In the case of traumatic injury to the gallbladder,conservative treatment is feasible even in the presence of hematoma.

关键词： Gallbladder Trauma Abdomnial injuries,Blunt injuries Cholecystitis Gallstone Case report

来源：

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

Characteristics of environmental factors associated with typhoon Kongrey(1825) over the Eastern Coastal Region of Korea

引用

Tropical Cyclone Research and Review 2020年第3期9卷 162-171页

作者： So-Ra In Baek-jo Kim Hae-Min Kim chang-Geun Park High Impact Weather Research Center Observation and Forecast Research DivisionNational Institute of Meteorological SciencesKMASouth Korea

In this study,the characteristics of environmental factors associated with typhoon Kongrey were examined using radiosonde,wind-profiler,radar,and Automated Surface Observing System(ASOS)data in Uljin,which is located the eastern coast of *** radiosonde data were obtained from intensive observation between 1500 LST 5 to 0000 LST 7 October *** factors such as Total Precipitable Water(TPW)and Strom Relative Environmental Helicity(SREH)were selected to examine their relations to typhoon-accompanied *** TPW peak with 60.54 mm appeared at 1200 LST 6 October,which is 6 h after the peak of typhoon *** was found that the TPW variation is largely associated with the effect of water vapor supply from the typhoon with nearest proximity to Uljin at 1500 LST 6 *** SREH,which indicates mechanical instability,was 761 m2 s-2 during the period in which typhoon precipitation *** environments would provide a good condition for the development of super-cell storms,causing heavy precipitation associated with *** addition,it was found that the correlation coefficient between SREH and typhoon rainfall is 0.8(p-value=0.02).

关键词： Typhoon Kongrey Precipitation TPW SREH

来源：

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

Sonication and grinding pre-treatments on Gelidium amansii seaweed for the extraction and characterization of Agarose

引用

Frontiers of Environmental Science & Engineering 2018年第4期12卷 17-23页

作者： Kit Wayne Chew Pau Loke Show Yee Jiun Yap joon Ching Juan Siew Moi Phang Tau Chuan Ling jo-Shu chang Department of Chemical and Environmental Engineering Faculty of Engineering University of Nottingham Malaysia Campus Jalan Broga 43500 Semenyih Selangor Darul Ehsan Malaysia Bioseparation Research Group Faculty of Engineering University of Nottingham Malaysia Campus Jalan Broga 43500 Semenyih Selangor Darul Ehsan Malaysia Department of Applied Mathematics Faculty of Engineering University of Nottingham Malaysia Campus Jalan Broga 43500 Semenyih Selangor Darul Ehsan Malaysia Nanotechnology & Catalysis Research Centre (NANOCAT) Institute of Postgraduate Studies University of Malaya 50603 Kuala Lumpur Malaysia Institute of Ocean and Earth Sciences University of Malaya 50603 Kuala Lumpur Malaysia Institute of Biological Sciences University of Malaya 50603 Kuala Lumpur Malaysia Department of Chemical Engineering National Cheng Kung University Tainan 701 Taiwan China

Various prctreatments methods including sonication and grinding were perfonned on red seaweed Gelidium amansii for the subsequent extraction ofagarose. The agarose products are usually extracted from agar powder products from seaweeds. In this study, the agarose was extracted using a direct polyethylene glycol （PEG） method without the need to first process the agar from seaweed. The agar extract was frozen then thawed and mixed directly with PEG solution to precipitate the agarose. The quality of agarose obtained was evaluated through physico-chemical properties analysis which includes spectral technique （FTIR）, melting and boiling point, gel strength and sulfate content. These properties were compared with a non-pretreated sample and it was found that the addition of pretreatment steps improved the quality of agarosc but gave a slightly lower yield. The gel strength of pretreated samples was much higher and the sulfate content was lower compared to non-pretreated samples. The best pretreatment method was sonication which gave gel strength of 742 gcm - and sulfate content of 0.63%. The extraction of agarose can be further improved with the use of different neutralizing agents. Pretreating the seaweed shows potential in improving the quality of agarosc from seaweed and can be applied for thture extraction of the agarose.

关键词： AgaroseGe lidium Pretreatment Seaweed Sonication

来源：

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

Gender differences in clinical outcomes of acute myocardial infarction undergoing percutaneous coronary intervention: insights from the KAMIR-NIH Registry

引用

journal of Geriatric Cardiology 2020年第11期17卷 680-693页

作者： Myunhee Lee Dae-won Kim Mahn-won Park Kyusup Lee Kiyuk chang Wook Sung Chung Tae Hoon Ahn Myung Ho Jeong Seung-Woon Rha Hyo-Soo Kim Hyeon Cheol Gwon In Whan Seong Kyung Kuk Hwang Shung Chull Chae Kwon-Bae Kim Young jo Kim Kwang Soo Cha Seok Kyu Oh Jei Keon Chae Ji-Hoon Jung 无 KAMIR-NIH registry investigators Division of Cardiology Daejeon St.Mary’s hospitalCollege of MedicineThe Catholic University of KoreaSeoulSouth Korea Division of Cardiology Seoul St.Mary’s hospitalCollege of MedicineThe Catholic University of KoreaSeoulSouth Korea Gachon University Gil Medical CenterIncheonSouth Korea Chonnam National University Hospital GwangjuSouth Korea d Korea University Korea University Guro Hospital SeoulSouth Korea Seoul National University Hospital SeoulSouth Korea Sungkyunkwan Universtiy Samsung Medical CenterSeoulSouth Korea Chungnam National University Hospital DaejeonSouth Korea Chungbuk National University Hospital CheongjuSouth Korea Kyungpook National University Hospital DaeguSouth Korea Keimyung University Dongsan Medical Center DaeguSouth Korea Yeungnam University Hospital DaeguSouth Korea Pusan National University Hospital BusanSouth Korea wonkwang University Hospital IksanSouth Korea Chonbuk National University Hospital JeonjuSouth Korea Institute of Toxicology DaejeonSouth Korea 不详

Background There are numerous but conflicting data regarding gender differences in outcomes following percutaneous coronary intervention(PCI). Furthermore, gender differences in clinical outcomes with acute myocardial infarction(AMI) following PCI in Asian population remain uncertain because of the under-representation of Asian in previous trials. Methods A total of 13,104 AMI patients from Korea Acute Myocardial Infarction Registry-National Institute of Health(KAMIR-NIH) between November 2011 and December 2015 were classified into male(n = 8021, 75.9%) and female(n = 2547, 24.1%). We compared the demographic, clinical and angiographic characteristics, 30-days and 1-year major adverse cardiac and cerebrovascular events(MACCE) in women with those in men after AMI by using propensity score(PS) matching. Results Compared with men, women were older, had more comorbidities and more often presented with non-ST segment elevation myocardial infarction(NSTEMI) and reduced left ventricular systolic function. Over the median follow-up of 363 days, gender differences in both 30-days and 1-year MACCE as well as thrombolysis in myocardial infarction minor bleeding risk were not observed in the PS matched population(30-days MACCE: 5.3% vs. 4.7%, log-rank P = 0.494, HR = 1.126, 95% CI: 0.800-1.585;1-year MACCE: 9.3% vs. 9.0%, log-rank P = 0.803, HR = 1.032, 95% CI: 0.802-1.328;TIMI minor bleeding: 4.9% vs. 3.9%, log-rank P = 0.215, HR = 1.255, 95% CI: 0.869-1.814). Conclusions Among Korean AMI population undergoing contemporary PCI, women, as compared with men, had different clinical and angiographic characteristics but showed similar 30-days and 1-year clinical outcomes. The risk of bleeding after PCI was comparable between men and women during one-year follow up.

关键词： Acute myocardial infarction Asian population Gender difference Percutaneous coronary intervention

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Inhibitory effect of Cyrtomium falcatum on melanogenesis in α-MSH-stimulated B16F10 murine melanoma cells

引用

Asian Pacific journal of Tropical Biomedicine 2023年第9期13卷 403-410页

作者： Xian-Rong Zhou Jung Hwan Oh Fatih Karadeniz Hyunjung Lee Hyo Eun Kim Migeon jo Youngwan Seo chang-Suk Kong Department of Bioscience Silla UniversityBusan 46958Korea Collaborative Innovation Center for Child Nutrition and Health Development Chongqing University of EducationChongqing 400067China Marine Biotechnology Center for Pharmaceuticals and Foods Silla UniversityBusan 46958Korea Nutritional Education Graduate School of EducationSilla UniversityBusan 46958Korea Department of Food and Nutrition Silla UniversityBusan 46958Korea Division of Convergence on Marine Science Korea Maritime and Ocean UniversityBusan 49112Korea

Objective:To explore the anti-melanogenic potential of Cyrtomium ***:The effects of Cyrtomium falcatum crude extract and its solvent fractions on tyrosinase activity,melanin content,and the expressions of melanogenesis-related genes and proteins were analyzed inα-melanocyte-stimulating hormone(α-MSH)-stimulated B16F10 ***:α-MSH treatment significantly increased tyrosinase activity,and extracellular and intracellular melanin content,as well as the expression levels of tyrosinase,microphthalmia-associated transcription factor(MITF),tyrosinase-related protein(TRP)-1,and TRP-2 in B16F10 *** with Cyrtomium falcatum crude extract and its solvent fractions reduced tyrosinase activity and extracellular and intracellular melanin content and downregulated the expression levels of tyrosinase,MITF,TRP-1,and TRP-2 in a dose-dependent ***:Cyrtomium falcatum has potential anti-melanogenesis effects and can be used as a potential source material in cosmeceutical industry for the research and development of novel lead molecules with whitening properties.

关键词： Cyrtomium falcatum Melanogenesis α-MSH B16F10 melanoma cells

来源：

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

Sex-based differences in histology,staging,and prognosis among 2983 gastric cancer surgery patients

引用

World journal of Gastroenterology 2022年第9期28卷 933-947页

作者： Yonghoon Choi Nayoung Kim Ki Wook Kim Hyeong Ho jo Jaehyung Park Hyuk Yoon Cheol Min Shin Young Soo Park Dong Ho Lee Hyeon Jeong Oh Hye Seung Lee Young Suk Park Sang-Hoon Ahn Yun-Suhk Suh Do joong Park Hyung-Ho Kim Ji-won Kim Jin won Kim Keun-Wook Lee won chang Ji HoonPark Yoon Jin Lee Kyoung Ho Lee Young Hoon Kim Department ofInternal Medicine Seoul National University Bundang HospitalSeongnam 13620South Korea Nayoung Department of Internal Medicine Seoul National University College of MedicineSeoul 03080South Korea Department of Pathology Seoul National University Bundang HospitalSeongnam 13620South Korea Department of Pathology Seoul National University College of MedicineSeoul 03080South Korea Department of Surgery Seoul National University Bundang HospitalSeongnam 13620South Korea Department of Surgery Seoul National University College of MedicineSeoul 03080South Korea Department of Radiology Seoul National University Bundang HospitalSeongnam 13620South Korea Department of Radiology Seoul National University College of MedicineSeoul 03080South Korea

BACKGROUND Few studies have been conducted on sex differences in the incidence, pathophysiology, and prognosis of gastric cancer(GC).AIM To analyze the differences in GC characteristics according to sex in patients who underwent surgical treatment for *** A total of 2983 patients diagnosed with gastric adenocarcinoma who received surgical treatment at the Seoul National University Bundang Hospital between 2003 and 2017 were *** clinicopathological characteristics, histologic type of GC, overall and GC-specific survival rates, and associated risk factors were *** Among the 2983 patients, 2005(67.2%) and 978(32.8%) were males and females, *** average age of the female group(59.36 years) was significantly younger than that of the male group(61.66 years;P < 0.001).Cancer of the gastric body(P < 0.001) and diffuse-type histology(P < 0.001) were more common in females than in *** trend was more prominent in females younger than 60 years of age, with a significantly higher proportion of diffuse-type cancer than in the male *** of sex, diffuse-type GC was more common in younger patients, and the proportion of intestinal-type GC increased with *** overall survival rate was significantly higher in females(P < 0.001).However, this difference disappeared for GC-specific survival(P = 0.168), except for the poor GC-specific survival rate in advanced-stage cancer(stage Ⅲ or above) in females(P = 0.045).The risk factors for GC-related mortality were older age, upper location of GC, and diffuse-or mixed-type *** terms of comorbidities, more males died from diseases other than GC, including other malignancies such as lung cancer, hepatocellular carcinoma, and pancreatic cancer, and respiratory diseases such as interstitial lung disease and chronic obstructive pulmonary disease, while there were relatively more cardiovascular or cerebrovascular deaths in *** Sex-based differences in GC were

关键词： Gastric cancer Histology Prognosis Sex difference Survival

来源：

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

Using Tensilica Xtensa configures a dual-core processor based-on SoC

引用

通讯和计算机（中英文版） 2009年第2期6卷 1-10页

作者： TU Jih -Fu WU chang-jo Department of Electronic Engineering St. John＇s University Taipei 499 Taiwan Department of Electrical Engineering Mingchi University of Technology Taipei 24301 Taiwan

来源：

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

Protein Arginine Methyltransferase 1 Ablation in Motor Neurons Causes Mitochondrial Dysfunction Leading to Age-related Motor Neuron Degeneration with Muscle Loss

引用

Research 2024年第1期2023卷 637-649页

作者： Hyun-Kyung So Hyebeen Kim Jinwoo Lee chang-Lim You Chae-Eun Yun Hyeon-Ju Jeong Eun-Ju Jin Yunju jo Dongryeol Ryu Gyu-Un Bae jong-Sun Kang Department of Molecular Cell Biology Sungkyunkwan University School of MedicineSuwonKorea Single Cell Network Research Center Sungkyunkwan University School of MedicineSuwonKorea Research Institute of Aging-Related Diseases AniMusCureInc.SuwonKorea Drug Information Research Institute Muscle Physiome Research CenterCollege of PharmacySookmyung Women’s UniversitySeoulKorea

Neuromuscular dysfunction is tightly associated with muscle wasting that occurs with age or due to degenerative ***,the molecular mechanisms underlying neuromuscular dysfunction are currently *** studies have proposed important roles of Protein arginine methyltransferase 1(Prmt1)in muscle stem cell function and muscle *** the current study,we set out to determine the role of Prmt1 in neuromuscular function by generating mice with motor neuron-specific ablation of Prmt1(mnKO)using *** exhibited age-related motor neuron degeneration and neuromuscular dysfunction leading to premature muscle loss and ***1 deficiency also impaired motor function recovery and muscle reinnervation after sciatic nerve *** transcriptome analysis of aged mnKO lumbar spinal cords revealed alterations in genes related to inflammation,cell death,oxidative stress,and ***,mnKO lumbar spinal cords of sciatic nerve injury model or aged mice exhibited elevated cellular stress response in motor ***,Prmt1 inhibition in motor neurons elicited mitochondrial *** findings demonstrate that Prmt1 ablation in motor neurons causes agerelated motor neuron degeneration attributing to muscle ***,Prmt1 is a potential target for the prevention or intervention of sarcopenia and neuromuscular dysfunction related to aging.

关键词： degeneration impaired prevention

来源：

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

Clinical outcomes of self-expandable metal stents in palliation of malignant anastomotic strictures caused by recurrent gastric cancer

引用

World journal of Gastroenterology 2009年第28期15卷 3523-3527页

作者： Yu Kyung Cho Sang Woo Kim Kwan Woo Nam Jae Hyuck chang Jae Myung Park Jeong-jo Jeong In Seok Lee Myung-Gyu Choi In-Sik Chung Department of Internal Medicine The Catholic University of Korea

AIM： To examine the technical feasibility and clinical outcomes of the endoscopic insertion of a selfexpandable metal stent （SEMS） for the palliation of a malignant anastomotic stricture caused by recurrent gastric cancer. METHODS： The medical records of patients, who had obstructive symptoms caused by a malignant anastomotic stricture after gastric surgery and underwent endoscopic insertion of a SEMS from January 2001 to December 2007 at Kangnam St Mary＇s Hospital, were reviewed retrospectively. RESULTS： Twenty patients （15 male, mean age 63 years） were included. The operations were a total gastrectomy with esophagojejunostomy （n = 12）, subtotal gastrectomy with Billroth-Ⅰ reconstruction （n = 2） and subtotal gastrectomy with Billroth- Ⅱ reconstruction （n = 8）. The technical and clinical success rates were 100% and 70%, respectively. A small bowel or colon stricture was the reason for a lack of improvement in symptoms in 4 patients. Two of these patients showed improvement in symptoms after another stent was placed. Stent reobstruction caused by tumor ingrowth or overgrowth occurred in 3 patients （15%） within 1 mo after stenting. Stent migration occurred with a covered stent in 3 patients who underwent a subtotal gastrectomy with Billroth-Ⅱ reconstruction. Two cases of partial stent migration were easily treated with a second stent or stent repositioning. The median stent patency was 56 d （range, 5-439 d）. The median survival was 83 d （range, 12-439 d）. CONCLUSION： Endoscopic insertion of a SEMS provides safe and effective palliation of a recurrent anastomotic stricture caused by gastric cancer, A meticulous evaluation of the presence of other strictures before inserting the stent is essential for symptom improvement.

关键词： Stents Surgical anastomosis Stricture Endoscopic gastrointestinal surgery Stomach neoplasms

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：