检索结果-南通市图书馆

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

palm

新潮电子 2005年第17期 24-24页

但凡为PDA发过烧的人．不会不知道palm。在那个充满激情的时代．这四个字母是一个让人一听便热血沸腾的名字。它的蓝色Logo已经成为一种手持文化的象征。然而，一阵寒流吹过，palm变成了palmOne，声音也渐渐弱了下去。当意欲改名的palm... 详细信息

但凡为PDA发过烧的人．不会不知道palm。在那个充满激情的时代．这四个字母是一个让人一听便热血沸腾的名字。它的蓝色Logo已经成为一种手持文化的象征。然而，一阵寒流吹过，palm变成了palmOne，声音也渐渐弱了下去。当意欲改名的palmOne再次成为新闻主角的时候，我们猛然发现palm回来了，也变得更时尚了。然而，我们的疑问也更多了。在凶险的手持设备市场，这位手持文化开创者打算如何经营自己的未来？或许，palm亚太区副总裁Paul Blinkhorn（下文简称Paul）的回答，可以帮我们认知一个全新的palm。

关键词： palm 手持设备掌上电脑手持文化

Recent developments in the application of oil palm fibers in cement composites

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Structural and Civil Engineering 2020年第1期14卷 94-108页

作者： Emmanuel Owoichoechi MOMOH Adelaja Israel OSOFERO School of Engineering University of AberdeenAberdeenAB243UEUK

Fibers obtained from different parts of the oil palm tree(Elaeis guineensis)have been under investigation for possible use in *** have been carried out investigating the engineering properties and possible applications of these ***,the experimental methods employed and the values of mechanical and physical properties recorded by various authors are *** has therefore become necessary to organize information which would be useful in the design of oil palm fiber cement composites and help researchers and engineers make informed decisions in further research and *** review provides information about fibers from different parts of the oil palm,their properties,enhancement techniques,current and potential application in cement composites.

关键词： broom cement composite concrete oil palm fiber Natural fiber-concrete sustainability

High performance electrocoagulation process in treating palm oil mill effluent using high current intensity application

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2019年第1期27卷 208-217页

作者： Mohd Nasrullah A.W.Zularisam Santhana Krishnan Mimi Sakinah Lakhveer Singh Yap Wing Fen Faculty of Engineering Technology Universiti Malaysia Pahang(UMP) Department of Biological and Ecological Engineering Oregon State University Department of Physics Faculty of ScienceUniversiti Putra Malaysia(UPM)

Electrocoagulation process using high current intensity to treat palm oil mill effluent(POME) was investigated in this *** operating parameters such as electrolysis time, inter-electrode distance and initial pH were carried out to determine the efficient process condition on the removal of chemical oxygen demand(COD),biological oxygen demand(BOD) and suspended solids(SS).The highest treatment was achieved at 50 min with the removal efficiencies for COD, BOD and SS obtained as 85%, 83%, and 84%, *** than 50 min treatment showed the fluctuated trends of removal efficiencies which can be considered *** application of higher current resulted in higher removals of organics while the gas bubbles also assisted in removing the pollutant particles by *** an inter-electrode distance study, the removal efficiency decreased when inter-electrode distance was either higher or lower than 10 mm due to the increase of solution resistance and the decrease of anode active surface *** initial pH study, it was found that high removal efficiencies were achieved in slightly acidic POME sample rather than in neutral or basic *** electrocoagulation process by using the optimum operating parameters was able to remove COD, BOD and SS up to 95%, 94% and 96% *** experimental results confirm that application of high current intensity in electrocoagulation provided high treatment efficiency at a reduced reaction time.

关键词： Electrochemistry Environment Electrocoagulation palm oil mill effluent High current intensity

Influence of contact pressure and sliding speed dependence on the tribological characteristics of an activated carbonepoxy composite derived from palm kernel under dry sliding conditions

在线全文

学校读者我要写书评

暂无评论

Friction 2019年第3期7卷 227-236页

作者： Dayang Nor Fatin MAHMUD Mohd Fadzli Bin ABDOLLAH Nor Azmmi Bin MASRIPAN NoreffendyTAMALDIN Hilmi AMIRUDDIN Faculty of Mechanical Engineering Universiti Teknikal Malaysia MelakaHang Tuah JayaDurian TunggalMelaka76100Malaysia Centre for Advanced Research on Energy Universiti Teknikal Malaysia MelakaHang Tuah JayaDurian TunggalMelaka76100Malaysia

The objective of this work is to investigate the influence of contact pressure and sliding speed on the coefficient of friction and wear of an activated carbon-epoxy composite derived from palm kernel under dry sliding conditions.A wear mode map approach was employed to identify the transitions from mild to severe wear of the *** dry sliding test was executed by utilizing a ball-on-disc tribometer at different contact pressures and sliding speeds with a constant sliding distance and operating *** results showed that,regardless of the sliding speed,the friction coefficient and wear rate of the composite increased drastically when a critical limit of contact pressure is *** for the sliding speed,both the friction coefficient and wear rate increased first and thereafter decreased at a higher speed of 500 rpm.A wear mode map is proposed to classify the boundary from mild to severe wear *** predominant wear failures identified include micro-crack,fine grooves,debonding,delamination,debris,broken carbon,and fracture.

关键词： activated carbon agriculture waste palm kernel friction and wear pressure and speed

Modification of Oil palm Empty Fruit Bunch and Sugarcane Bagasse Biomass as Potential Reinforcement for Composites Panel and Thermal Insulation Materials

在线全文

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2019年第1期16卷 175-188页

作者： Nor Azlina Ramlee Mohammad Jawaid Edi Syams Zainudin Shaikh Abdul Karim Yamani Department of Biocomposite Laboratory Institute of Tropical Forestry and Forest Products (INTROP)Universiti Putra Malaysia 43400 SerdangSelangorMalaysia Department of Mechanical and Manufacturing Engineering Faculty of EngineeringUniversiti Putra Malaysia 43400 SerdangSelangorMalaysia Faculty of Applied Science Wood Industry Universiti Teknologi MARA Campus of Jengka 26400 Bandar Tun Abdul Razak JengkaPahangMalaysia

This paper focuses on the study of the effect of modification of Oil palm Empty Fruit Bunch(OPEFB)and sugarcane bagasse(SCB)biomass as potential reinforcement for composites panel and thermal *** fibres were treated with three types of chemicals:2%silane,4%H2O2 and 4%H2O2-2%silane for 3 *** influence of modified fibres content in composites was examined by structural changes using image analyser,Fourier transform infrared(FTIR),Scanning Electron Microscopy(SEM),tensile,interracial shear strength(IFSS)and thermal *** diameter of both fibres was reduced after treatment and showed decreasing of lignin and hemi-cellulose in *** strength has been increased by 2%silane treatment for both fibres and 4%H2O2 treatment displays higher result for *** properties of treated SCB fibre with silane display higher residual content and better thermal *** charac-terization showed that 2%silane treatment removed silica bodies of OPEFB fibre while 4%H2O2 treatment uniformly filled porosity of SCB ***,results revealed that treated OPEFB fibre is enough to improve compatibility and mechanical properties,while treated SCB fibre was effective in thermal stability for fabrication of composite materials.

关键词： oil palm empty fruit bunch sugarcane bagasse fibre treatment tensile properties thermal properties interracial shear strength

Modification of mechanical properties by TiO_2 nano-particle for biodegradable materials made from palm oil sludge and activated sludge cake

在线全文

维普期刊数据库

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 2012年第S3期22卷 697-701页

作者： Panithi YUTHAVISUTHI Lerpong JARUPAN Chiravoot PECHYEN Department of Packaging and Materials Technology Faculty of Agro-IndustryKasetsart University Center for Advanced Studies in Agriculture and Food (CASAF) KU Institute for Advanced Studies Kasetsart University

Titanium dioxide (TiO2) nano-particle is widely used in composite materials to its improved mechanical ***2 nano-particle was used in the composite material that consists of palm oil sludge from the palm oil production and activated sludge cake from a papermaking ***2 was synthesized by a hydrolysis of titanium *** parameter was investigated by the mole ratio of reactant to different solvents (isopropanol and isobutanol).The solution was prepared by adjusting pH to acid solution,resulting in different sizes and distributions of precipitate which was heated at different *** obtained samples were then morphologically and structurally characterized using X-ray diffraction (XRD) and particle size distribution (PSD).The experimental results show that the TiO2 sample from isopropanol solvent with heated temperature of 600 °C exhibits the best ***,different mass fractions of TiO2 (0,0.5%,1.0%,2.0%,4.0% and 8.0%) were used for specimens that were made from palm oil sludge mixed with activated sludge *** samples were later characterized by 3-point bending test and compression *** results indicate that the adding 0.5% and 1.0% TiO2 particles to the composite material outperforms the other fractions in terms of enhancing mechanical ***,mechanical properties tends to decrease when adding 2.0% TiO2.

关键词： titanium dioxide palm oil sludge active sludge cake composite mechanical properties

Effects of palm fat powder and coated folic acid on growth performance, ruminal fermentation, nutrient digestibility and hepatic fat accumulation of Holstein dairy bulls

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2020年第4期19卷 1074-1084页

作者： ZHANG Zhen LIU Qiang WANG Cong GUO Gang HUO Wen-jie ZHANG Yan-li PEI Cai-xia ZHANG Shuan-lin College of Animal Science and Veterinary Medicine Shanxi Agricultural UniversityTaigu 030801P.R.China

This study evaluated the effects of palm fat powder(PFP) and coated folic acid(CFA) on growth performance, ruminal fermentation, nutrient digestibility, microbial enzyme activity, microflora, hepatic lipid content and gene expression in dairy bulls. Forty-eight Chinese Holstein bulls((362±12.4) days of age and(483±27.1) kg of body weight(BW)) were assigned to four groups in a completely randomized design with a 2×2 factorial arrangements. Supplemental PFP(0 or 30 g PFP kg-1 dietary dry matter(DM)) and CFA(0 or 120 mg FA d-1 as CFA) were mixed into the top one-third of a total mixed ration. The study included a 20-day adaptation period and followed by a 90-day collection period. The lower(Ppalmitoyl transferase-1(CPT1), and lower ruminal total volatile fatty acids(VFA) concentration, acetate to propionate ratio, neutral detergent fibre(NDF) digestibility, copies of total protozoa and Ruminococcus flavefaciens, and expression of sterol regulatory element binding protein-1(SREBP1) and acetyl-coenzyme A carboxylase α(ACACA) were observed for PFP addition. Supplementation with CFA increased(P<0.05) ruminal total VFA concentration, acetate to propionate ratio, digestibility of DM, organic matter, crude protein and NDF, activity of cellobiase, pectinase and α-amylase, copies of selected microbial except for total protozoa, as well as expression of PPARα, but decreased(P<0.05) ruminal p H, and expression of SREBP1 and ACACA. The PFP×CFA interaction(P<0.05) was observed for ammonia N, hepatic TG content, and m RNA expression of CPT1 and FAS. There had no significant difference in hepatic TG content when CFA was supplemented in the diet with

关键词： palm fat powder coated folic acid growth performance gene expression dairy bulls

Experimental investigations on wear properties of palm kernel reinforced composites for brake pad applications

在线全文

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2019年第3期15卷 295-299页

作者： Satish Pujari S.Srikiran Department of Mechanical Engineering Lendi Institute of Engineering and Technology

The use of asbestos material is being avoided to manufacture the brake pads as it is harmful and toxic in nature. Further it leads to various health issues like asbestosis, mesothelioma and lung cancers. These brake pads can be replaced by natural fibers like palm kernel (0-50%), Nile roses (0-15%) and Wheat (0-10%) with additives like aluminum oxide (5%-20%) and graphite powder (10%-35%). Phenolic resin of 35% is utilized as a binder. Particulated Nile roses are used to increase the friction coefficient and wheat powder is used to reduce the wear rate. Aluminum oxide and graphite are abrasive in nature. This helps to make brake pads with high friction co-efficient and less wear rate with low noise pollution. The wear of the proposed composites have been investigated at different speeds. Various tests like wear on pin-ondisc apparatus, hardness on the Rockwell hardness apparatus and oil absorption test have been conducted. Phenolic resin produces good bonding nature to fiber. Thus, Fibers found to have performed palatably among all commercial brake pads. The objective of the research indicates that palm kernal shell could be a conceivable alternative for asbestos in friction coating materials.

关键词： Friction materials palm kernel fiber Nile rose Wheat Brake pad Wear test Hardness test Oil absorption test

Phoenix phylogeny, and analysis of genetic variation in a diverse collection of date palm(Phoenix dactylifera) and related species

在线全文

学校读者我要写书评

暂无评论

Plant Diversity 2019年第5期41卷 330-339页

作者： Srinivasa R.Chaluvadi Porter Young Kentrez Thompson Bochra Amina Bahri Bhavesh Gajera Subhash Narayanan Robert Krueger Jeffrey L.Bennetzen Department of Genetics University of GeorgiaAthensGAUSA Institute of Plant Breeding Genetics and Genomics(Department of Crop and Soil Sciences)and Department of Plant BiologyUniversity of GeorgiaAthensGA 30602USA Laboratory of Bioaggressors and Integrated Protection in Agriculture The National Agronomic Institute of TunisiaUniversity of Carthage43 Avenue Charles-NicolleTunis 1082Tunisia Anand Agricultural University AnandIndia USDA-ARS National Clonal Germplasm Repository for Citrus and Dates RiversideCAUSA

Date palm(Phoenix dactylifera),one of the most ancient crops,is grown commercially in>30 *** whole plastome assemblies,phylogenetic analyses revealed that cultivated date palm accessions share the same clade with Phoenix sylvestris,Phoenix pusilla and Phoenix acaulis,which are native to the Indian subcontinent,and Phoenix caespitosa that is native to the Arabian Peninsula and the deserts of *** of genetic diversity and genetic relationships among date palm accessions from 13 producing countries involved 195 date palm accessions that were genotyped at 19 microsatellite *** genetic diversity was observed,with many accessions heterozygous for most markers in this clonally propagated *** average number of alleles per locus(42.1),expected heterozygosity(0.8),observed heterozygosity(0.47)and fixation indices(FST=0.42)demonstrated substantial genetic diversity and population *** accessions were found to have the richest allelic diversity,and the most private *** model-based Bayesian method indicated that these accessions could be broadly divided into two structure groups,one group with predominantly African accessions and another predominantly *** germplasm,especially from Tunisia and Iraq,deviated from this *** accessions in the STRUCTURE-derived groups were found to be genetic admixtures,with gene flow between Asian and African *** and Pakistani date palms were found to be most closely related to North African germplasm.

关键词： Date palm improvement Germplasm dissemination Plastome Simple sequence repeats