维普中文期刊产品整合服务
18篇 您的检索式:作者名="Pakorn"
    题名 作者 年代 出处 被引量
1Determination of Cd, Cu, and Zn in fish and mussel by AAS after ultrasound-assisted acid leaching extraction显示文摘Niwat Manutsewee Wanlapa Aeungmaitrepirom Pakorn Varanusupakul Apichat Imyim 2006Food Chemistry2006,,2:1
2Facile p-toluenesulfonic acid-promoted para-selective monobromination and chlorination of phenoland analogues显示文摘Pakorn Bovonsombat Rameez Ali Chiraphorn Khan 2010Tetrahedron2010,66,2:1
3Manufacturing and Failure Mechanisms of Syntactic Foam Under Compression显示文摘Ho Sung Kim Pakorn Plubrai 2004Com- posites Part A : Applied Science and Manufacturing2004,35,:1
4Facile p- toluenesulfonic acid- promoted para--selective monobromination and chlorination of phenoland analogues显示文摘Pakorn Bovonsombat Rameez Ali Chiraphorn Khan 2010Tetrahedron2010,66,2:1
5Real time adaptive visual surveillance system for tracking low-resolution color targets in dynamically changing scenes显示文摘PAKORN K T P RICHARD B A 2003Image and Vision Computing2003,21,:1
6A real time adaptive visual surveillance system for tracking low-resolution color targets in dynamically changing scenes显示文摘 2003Image and Vision Computing2003,,:1
7Manufacturing and failure mechanisms of syntactic foam under compression显示文摘Ho Sung Kim Pakorn Plubrai 2004Composites Part A :Applied Science and Manufacturing2004,,35:1
8In situ derivatization and hollow fiber membrane microextraction for gas chromatographic determination of haloacetic acids in water显示文摘Pakorn Vatanusupakul Narongchai Vora-adisak Bancha Pulpoka 2007Analytica Chimica Acta2007,598,:1
9Pulmonary arterial hypertension in previously splenectomized patients with β-Thalassemic disorders显示文摘Vichai Atichartakarn Khanchit Likittanasombat Suporn Chuncharunee Pakorn Chandanamattha Surapon Worapongpaiboon Pantep Angchaisuksiri Katcharin Aryurachai 2003International Journal of Hematology2003,,2:1
10Manufacturing and Failure Mechanisms of Syntactic Foam under Compression 显示文摘KIM Ho Sung PLUBRAI Pakorn 2004Composites Part A: Applied Science and Manufacturing2004,,35:1
11Hybrid flow analyzer for automatic hollow-fiber-assisted ionic liquid-based liquidphase microextraction with in-line membrane regeneration显示文摘Sira Nitiyanontakit Pakorn Varanusupakul Manuel Miró 2013Anal Bioanal Chem2013,405,:1
12混凝土比强度的主要影响因素研究显示文摘分别研究了矿物掺合料(粉煤灰、矿渣)、养护方式对普通混凝土比强度的影响;陶粒、橡胶颗粒、聚苯颗粒对轻骨料混凝土比强度的影响以及陶砂、钢纤维对(超)高强混凝土比强度的影响。结果表明:适量掺入矿渣,普通混凝土28 d的比强度提高更大;轻骨料混凝土的比强度分别随陶粒、橡胶颗粒、聚苯颗粒取代率的增加而降低,其中,陶粒对轻骨料混凝土比强度的不利影响相对较小;当掺入1.5%的钢纤维和18%的陶砂时,(超)高强混凝土的比强度提升幅度最大。周倩倩 谢友均 龙广成 张思思 CHAKTRIMONGKOL Pakorn 2021混凝土与水泥制品2021,,11:1
13Manufacturing and failure mechanisms of syntactic foam under compression显示文摘Ho Sung Kim Pakorn Plubrai 2004Composites Part A: Applied Science and Manufacturing2004,,35:1
14Buccal administration of mucoadhesive blend films saturated with propranolol loaded nanoparticles显示文摘The aims of this study were to prepare and characterize hydroxypropyl methylcellulose(HPMC)/polycarbophil(PC) mucoadhesive blend films saturated with propranolol hydrochloride(PNL)-loaded nanoparticles to improve permeability of drugs that undergo firstpass metabolism. An ionic cross-linking method and film casting technique was used to prepare nanoparticles and mucoadhesive blend films, respectively. Increasing concentrations of PNL(70, 80, 90 mg/film) in HPMC/PC blend films containing PNL-loaded nanoparticles(PN-films) and HPMC/PC blend films containing PNL(80 mg/film) without nanoparticles(PPfilms) were prepared to test swelling, mucoadhesiveness, release, permeation and physicochemical properties. Scanning electron microscope(SEM) images showed a partially smooth surface with a wrinkled occurrence and spherically shaped, well-dispersed nanoparticles on the surface of PN-films containing PNL 80 mg/film(PN-films-80). The size of the nanoparticles on the surface of PN-films-80 was around 100 nm, which was similar to the nanoparticle size observed using light scattering technique. The swelling index(SI)of all PN-films and PP-films increased greatly in the first period time(10–20 min) and reached swelling equilibrium at 20 min and 30 min, respectively. For the PN-films, the concentration of PNL influenced the mucoadhesive properties and tended to be higher when the amount of PNL increased. Immediate release of all blend film formulations was found in early time points(10–30 min). After 120 min, the release of PN-films-70 was lower than the other PNfilms. Permeation studies using porcine buccal mucosa showed that inclusion of nanoparticles in the films increased the permeability of PNL compared to PP-films. Therefore, buccal administration of mucoadhesive blend films containing PNL-loaded nanoparticles could be a promising approach for drugs that undergo first-pass metabolism.Pakorn Kraisit Sontaya Limmatvapirat Manee Luangtana-Anan Pornsak Sriamornsak 2018Asian Journal of Pharmaceutical Sciences2018,13,1:1
15Robot Vision System for Coordinate Measurement of Feature Points on Large Scale Automobile Part显示文摘In this paper,we present a robot vision based system for coordinate measurement of feature points on large scale automobile parts.Our system consists of an industrial 6-DOF robot mounted with a CCD camera and a PC.The system controls the robot into the area of feature points.The images of measuring feature points are acquired by the camera mounted on the robot.3D positions of the feature points are obtained from a model based pose estimation that applies to the images.The measured positions of all feature points are then transformed to the reference coordinate of feature points whose positions are obtained from the coordinate measuring machine(CMM).Finally,the point-to-point distances between the measured feature points and the reference feature points are calculated and reported.The results show that the root mean square error(RMSE) of measure values obtained by our system is less than 0.5 mm.Our system is adequate for automobile assembly and can perform faster than conventional methods.Pongsak Joompolpong Pradit Mittrapiyanuruk Pakorn Keawtrakulpong 2016Journal of Electronic Science and Technology2016,14,1:1
16Multi-function adsorbent-photocatalyst MXene-TiO_(2) composites for removal of enrofloxacin antibiotic from water显示文摘MXenes,a new family of two-dimensional transition metal carbides or nitrides,have attracted tremendous attention for various applications due to their unique properties such as good electrical conductivity,hydrophilicity,and ion intercalability.In this work,Ti_(3)C_(2) MXene,or MX,is converted to MX-TiO_(2) composites using a simple and rapid microwave hydrothermal treatment in HCl/NaCl mixture solution that induces formation of fine TiO_(2) particles on the MX parent structure and imparts photocatalytic activity to the resulting MX-TiO_(2) composites.The composites were used for enrofloxacin(ENR),a frequently found contaminating antibiotic,removal from water.The relative amount of the MX and TiO_(2) can be controlled by controlling the hydrothermal temperature resulting in composites with tunable adsorption/photocatalytic properties.NaCl addition was found to play important role as composites synthesized without NaCl could not adsorb enrofloxacin well.Adding NaCl into the hydrothermal treatment causes sodium ions to be simultaneously intercalated into the composite structure,improving ENR adsorption greatly from 1 to 6 mg ENR/g composite.It also slows down the MX to TiO2 conversion leading to a smaller and more uniform distribution of TiO_(2) particles on the structure.MX-TiO_(2)/NaCl composites,which have sodium intercalated in their structures,showed both higher ENR adsorption and photocatalytic activity than composites without NaCl despite the latter having higher TiO2 content.Adsorbed ENR on the composites can be efficiently degraded by free radicals generated from the photoexcited TiO2 particles,leading to high photocatalytic degradation efficiency.This demonstrates the synergetic effect between adsorption and photocatalytic degradation of the synthesized compounds.Siwanat Sukidpaneenid Chamorn Chawengkijwanich Chonlada Pokhum Toshihiro Isobe Pakorn Opaprakasit Paiboon Sreearunothai 2023Journal of Environmental Sciences2023,,2:1
17A High Speed Autofocusing System for Micro System Applications显示文摘In this paper,we present a high speed autofocus system for micro system applications and design a look-up-table based autofocusing algorithm for applications when a target object is always visible,e.g.,manufacturing parts with alignment fiducials.We perform an evaluation of 24 focus measures to verify that which focus measure is the best for the look-up-table based method.From the evaluation,we find that the Chebyshev moments-based focus measure(CHEB) is the most suitable.Furthermore,we also develop a look-up-table based autofocus system that uses CHEB as the focus measure.In training phase,we offline construct a table from training images of an object that are captured at several lens distances.Each entry of table consists of focus measure computed from image and lens distance.In working phase,given an input image,the algorithm first computes the focus measure and then finds the best match focus measure from the table and looks up the corresponding lens position for moving it into the in-focus position.Our algorithm can perform autofocusing within only 2 steps of lens moving.The experiment shows that the system can perform high speed autofocusing of micro objects.Phuchong Sripolsaen Pradit Mittrapiyanuruk Pakorn Keawtrakulpong 2016Journal of Electronic Science and Technology2016,14,1:0
18Modeling temperature and moisture dependent emissions of carbon dioxide and methane from drying dairy cow manure显示文摘Greenhouse gas emissions due to biological degradation processes of animal wastes are significant sources of air pollution from agricultural areas. The major environmental controls on these microbe-induced gas fluxes are temperature and moisture content. The objective of this study was to model the effects of temperature and moisture content on emissions of CO2 and CH4 during the ambient drying process of dairy manure under controlled conditions. Gas emissions were continuously recorded over 15 d with paired fully automated closed dynamic chambers coupled with a Fourier Transformed Infrared gas analyzer. Water content and temperature were measured and monitored with capacitance sensors. In addition, on days 0, 3, 6, 9, 12 and 15, p H, moisture content, dissolved organic carbon and total carbon(TC) were determined. An empirical model derived from the Arrhenius equation confirmed high dependency of carbon emissions on temperature and moisture content. Results indicate that for the investigated dairy manure, 6.83% of TC was lost in the form of CO2 and 0.047% of TC was emitted as CH4.Neglecting the effect of temperature, the moisture contents associated with maximum gas emissions were estimated as0.75 and 0.79 g$g–1 for CO2 and CH4, respectively.Enzhu HU Pakorn SUTITARNNONTR Markus TULLER Scott B.JONES 2018Frontiers of Agricultural Science and Engineering2018,5,2:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费