|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Numerical simulation to evaluate gas diffusion of turbulent flow in mine ventilation system显示文摘Tracer gas technique is a method to analyze the airflow path, measure the airflow quantity, and detect any recirculation or leakages in underground mine. In addition, it is also possible to evaluate the axial gas diffusion of gas in turbulent bulk flow by utilizing the tracer gas data. This paper discussed about the measurement using tracer gas technique in Cibaliung Underground Mine, Indonesia and the evaluation of effective axial diffusion coefficient, E, by numerical simulation. In addition, a scheme to treat network flow in mine ventilation system was also proposed. The effective axial diffusion coefficient for each airway was evaluated based on Taylor's theoretical equation. It is found that the evaluated diffusion coefficient agrees well with Taylor's equation by considering that the wall friction factor, f, is higher than those for smooth pipe flow. It also shows that the value of effective diffusion coefficient can be inherently determined and the value is constant when matching with other measurements. Furthermore, there are possibilities to utilize the tracer gas measurement data to evaluate the airway friction factors. | Arif Widiatmojo Kyuro Sasaki Nuhindro Priagung Widodo Yuichi Sugai Johannes Sinaga Haris Yusuf | 2013 | International Journal of Mining Science and Technology2013，23，3： | 8 |
| 2 | Pediatricians lack knowledge for the diagnosis and management of functional constipation in children over 6 mo of age显示文摘AIM To assess the knowledge of general pediatricians througout Indonesia about the diagnosis and treatment of childhood constipation.METHODS A comprehensive questionnaire was distributed to general pediatricians from several teaching hospitals and government hospitals all over Indonesia.RESULTS Data were obtained from 100 pediatricians, with a mean of 78.34 ± 18.00 mo clinical practice, from 20 cities throughout Indonesia. Suspicion of constipation in a child over 6 mo of age arises when the child presents with a decreased frequency of bowel movements(according to 87% of participants) with a mean of one bowel movement per 3.59 ± 1.0 d, hard stools(83%), blood in the stools(36%), fecal incontinence(33%), and/or difficulty in defecating(47%). Only 26 pediatricians prescribe pharmacologic treatment as first therapeutic approach, while the vast majority prefers nonpharmacologic treatment, mostly(according to 68%) The preferred nonpharmacologic treatment are high-fiber diet(96%), increased fluid intake(90%), toilet training(74%), and abdominal massage(49%). Duration of non-pharmacological treatment was limited to 1 to 2 wk. Seventy percent of the pediatricians recommending toilet training could only mention some elements of the technique, and only 15% was able to explain it fully and correctly. Lactulose is the most frequent pharmacologic intervention used(87% of the participants), and rectal treatment with sodium citrate, sodium lauryl sulfo acetate, and sorbitol is the most frequent rectal treatment(85%). Only 51% will prescribe rectal treatment for fecal impaction. The majority of the pediatricians(69%) expect a positive response during the first week with a mean(± SD) of 4.1(± 2.56) d. Most participants(86%) treat during one month or even less. And the majority(67%) stops treatment when the frequency and/or consistency of the stools have become normal, or if the patient had no longer complaints.CONCLUSION These data provide an insight on the diagnosis and management of constipation in childhood in Indonesia. Although general pediatricians are aware of some important aspects of the diagnosis and mangement of constipation, overall knowledge is limited. Efforts should be made to improve the distribution of existing guidelines. These findings highlight and confirm the difficulties in spreading existing information from guidelines to general pediatricians. | Ariani Widodo Badriul Hegar Yvan Vandenplas | 2018 | World Journal of Clinical Pediatrics2018，7，1： | 6 |
| 3 | Val279Phe variant of Lp-PLA2 is a risk factor for a subpopulation of Indonesia patients with acute myocardial infarction显示文摘Lipoprotein-associated phospholipase A2(Lp-PLA2),a member of the phospholipase A2 superfamily,is an enzyme that hydrolyses phospholipids,is found in blood circulation as a sign of inflammation,and takes a role in atherogenesis.There is an epidemiologic relation between increased Lp-PLA2 levels and coronary heart disease.Lp-PLA2 is an enzyme that is produced by macrophages and takes a role as an independent predictor of a coronary event.A genetic variant of Val279Phe on the Lp-PLA2 gene has been reported with various results in Japan,China,Korea,and Caucasian populations.This study aims to analyse the influence of the Val279Phe genetic variant on acute myocardial infarction(AMI)at Saiful Anwar Hospital,Indonesia.This study was conducted on 151 patients(111 AMI patients and 40 non-AMI patients).The genetic variant of Val279Phe was identified through a genotyping method.There were no significant differences in age,total cholesterol level,LDL-C(low-density lipoprotein cholesterol)level,and family history data between AMI and non-AMI patients.However,AMI patients had low HDL-C(high-density lipoprotein cholesterol),triglyceride levels,dyslipidaemia,and hypertension risk factors compared to non-AMI patients.The frequency of the GG genotype(279Val)was dominant in both AMI and non-AMI groups.Further analysis suggested that the GG genotype has a 2.9 times greater risk of AMI compared to the GT/TT genotype(279Phe).This study concluded that the Val279Phe genetic variant undoubtedly influenced AMI risk,which is a warrant for further development of early detection and improving strategy to prevent AMI in patients. | Miryanti Cahyaningtias Mohammad Saifur Rohman Widodo Andi Wahjono Adi Rina Yuda Yanna Indrayana Jayarani Fatimah Putri Rusdianto Mifetika Lukitasari Dadang Hendrawan | 2016 | Genes & Diseases2016，3，4： | 3 |
| 4 | Anti-diabetic potential of Urena lobata leaf extract through inhibition of dipeptidyl peptidase IV activity显示文摘Objective: To evaluate the anti-diabetic potential of leaf extract from Urena lobata(U. lobata) through dipeptidyl peptidase IV(DPP-IV) inhibitory activity.Methods: U. lobata leaf was extracted in hot water and ethanol. The activity of DPPIV inhibitor was tested by in vitro study using gly-pro-p-nitroanilide as substrat of DPPIV and vildagliptin, as standard reference. A product of the reactions between gly-pro-pnitroanilide and DPP-IV, was observed by microplate readers with λ = 405 nm. All data were expressed as mean ± SD and the IC50 value was determined by non linear regression curve fit. Active substances in leaf extract of U. lobata was analyzed by liquid chromatography-mass spectrometry. DPP-IV inhibitory activity of active compounds was evaluated in silico using docking server. Results: The ethanolic extract of U. lobata showed stronger DPP-IV inhibitor activity than water extract with the IC50 values of 1 654.64 and 6 489.88 μg/mL, respectively. Vildagliptin, based on standard reference for DPP-IV inhibitor activity, has IC50 value of 57.44 μg/mL. Based on in silico analysis, mangiferin, stigmasterol and β-sitosterol in U. lobata extract have a strong inhibitory activity on DPP-IV. Conclusions: The results showed that DPP-IV inhibitory activity of U. lobata is related to its active compounds such as mangiferin, stigmasterol and β-sitosterol. | Yudi Purnomo Djoko Wahono Soeatmadji Sutiman Bambang Sumitro Mochammad Aris Widodo | 2015 | Asian Pacific Journal of Tropical Biomedicine2015，5，8： | 2 |
| 5 | Microreactor for the Catalytic Partial Oxidation of Methane显示文摘为甲烷的部分氧化的改正床反应堆仍然提出热点问题生产合成气。一个其他的反应堆,它作为 shell-and-tube-typed 被知道微反应堆,被开发了解决这些问题。微反应堆由 1 厘米组成外面直径, 0.8 厘米里面直径和 11 厘米长度试管,和 1.8 厘米里面直径轰炸。试管用稠密的氧化铝做的,壳用石英做的。二不同方法剧降和喷涂被执行与 LaNixOy 催化剂衬里管程。燃烧和重整反应在这个反应堆同时发生。甲烷在管程被氧化生产流动阻止当前的烟道气体(CO2 和 H2O ) 并且在壳方与留下的甲烷反应产出合成气。用高装载的催化剂的甲烷变换水花涂的试管在 700 点到达 97%??6 号元素碳的化学符号,而因为在催化剂电影和氧化铝之间的差的粘附,那仅仅用降低装载的催化剂 dip-coated 试管到达 7.78% ,支持。用催化剂的周转频率(TOF ) 喷洒 -- 并且 dip-coated 试管是 5.75 ?á 1 0 (? 5 ) 并且 2.24 ?á 1 0 (? 5 ) mol/gcat ? ¤ s 分别地。在 900 点水花涂的催化剂 ??6 号元素碳的化学符号在 1250 点比那提供更好的性能 ??6 号元素碳的化学符号因为 sintering 减少表面区域。到水花涂的催化剂生产的一氧化碳比率的氢比 stoichiometric 大,它被碳沉积通过甲烷裂开或 Boudouard 反应引起。给词调音:微反应堆;催化部分氧化;甲烷; | Widodo Wahyu Puwanto Yuswan Muharam | 2006 | Journal of Natural Gas Chemistry2006，15，4： | 2 |
| 6 | Analysis of explosion risk factor potential on coal reclaim tunnel facilities by modified analytical hierarchy process显示文摘 | Nuhindro Priagung Widodo Budi Sulistianto Ahmad Ihsan | 2018 | International Journal of Coal Science & Technology2018，5，3： | 2 |
| 7 | Tracer gas measurement and simulation of turbulent diffusion in mine ventilation airways显示文摘The effective diffusion coefficients in mine ventilation-flows had been obtained as 4 to 200 m^2/s by matching the measured concentration-time curves with the advec- tion-diffusion equation.The turbulent diffusion coefficients in the simple airways have good agreement with the equation proposed by Taylor.However,for complex airways in operat- ing mines,the evaluated effective diffusion coefficients in the mines show higher values than that calculated by the Taylor's equation.A numerical simulation model using with movements of discrete particles dosed into ventilation flows has been developed to simu- late diffusion phenomena of gas or dust in mine airways.Numerical simulations had been conducted on distribution of tracers in single airways with ordinary profiles of mean velocity velocity fluctuations and Reynolds stress.As one of results,long band of diffused particles is obtained at the single airway of 600 m in length,and large effective diffusion coefficient is evaluated as 20 m^2/s. | ARPA Gabriel WIDIATMOJO Arif WIDODO Nuhindro Priagung SASAKI Kyuro | 2008 | Journal of Coal Science & Engineering(China)2008，14，4： | 2 |
| 8 | HBS pulping(2)-pulping of hardwood and annual plants显示文摘 | Widodo E W Kajimoto J Sano Y | 2000 | Kam Pa Gikyoshi/Japan Tappi Journal2000，54，10： | 1 |
| 9 | Support vector machine in machine condition monitoring and fault diagnosis显示文摘 | WIDODO A YANG B S | 2007 | Mechanical Systems and Signal Processing2007，21，： | 1 |
| 10 | Application of relevance vector machine and logistic regression for machine degradation assessment 显示文摘 | Caesarendra W Widodo A Yang B S | 2010 | Mechanical Systems and Signal Processing2010，24，4： | 1 |
| 11 | Support vector machine in machine condition monitoring and fault diagnosis显示文摘 | Widodo A Yang B S | 2007 | Mechanical Systems and Signal Processing2007，21，6： | 1 |
| 12 | Epithelial mesenchymal transition traits in human breast cancer cell lines显示文摘 | T. Blick E. Widodo H. Hugo M. Waltham M. E. Lenburg R. M. Neve E. W. Thompson | 2008 | Clinical & Experimental Metastasis2008，，6： | 1 |
| 13 | HBS pulping( 1 ) -pulping of softwood显示文摘 | Kajimoto J Sano Y Widodo | 2000 | J Kamipakyokaishi ( in Japanese)2000，54，9： | 1 |
| 14 | Decision-level fusion based on wavelet decomposition for induction motor fault diagnosis using transient current signal显示文摘 | Niu G Widodo A Son J D | 2008 | Expert Systems with Applications2008，35，3： | 1 |
| 15 | Rockburst Prediction of a Cut and Fill Mine by Using Energy Banalance and Induced Stress 显示文摘 | Bagaraja Sirait Ridho Kresna Wattimena Nuhindro Priagung Widodo | 2013 | Procedia Earth and Planetary Science2013，，6： | 1 |
| 16 | Breast cancer stem cells and epithelial mesenchymal plasticity - Implications for chemoresistance显示文摘 | Pinto CA Widodo E Waltham M | 2013 | Cancer Lett2013，341，1： | 1 |
| 17 | Support vector machine in machine condition monitoring and fault diagnosis显示文摘 | Achmad Widodo Bo-Suk Yang | 2007 | Mechanical Systems and Signal Processing2007，21，6： | 1 |
| 18 | Applica- tion of relevance vector machine and logistic regression for machine degradation assessment显示文摘 | CAESARENDRA W WIDODO A YANG B | 2010 | Mechanical Sys- tems and Signal Processing2010，24，4： | 1 |
| 19 | Vehicle fuel consumption and emission estimation in environmental-adaptive driving with or without intervehicle communications显示文摘 | WIDODO A HASEGAWA T TSUGAWA S | 2000 | IEEE Intelligent Vehicles Symposium Dearborn MI USA2000，，： | 1 |
| 20 | Application of Nonlinear Feature Extraction and Support Vector Machines for Fault Diagnosis of Induction Motors显示文摘 | Achmad Widodo Bo-Suk Yang | | 0，，33： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员