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Enhancement of Penaeus vannamei shrimp growth using nanobubble in indoor raceway pond

Aquaculture and Fisheries 2021年第3期6卷 277-282页

作者： Asri Ifani Rahmawati Rizki Nugraha Saputra Arief Hidayatullah Agus Dwiarto hardi junaedi Dedi Cahyadi Henry Kasman Hadi Saputra Wendy Tri Prabowo Ujang Komarudin Asdani Kartamiharja Hanny Shafira Alfian Noviyanto Nurul Taufiqu Rochman Nanobubble Karya Indonesia Ltd.Jl.Raya SerpongSouth TangerangBanten15314Indonesia Nano Center Indonesia Jl.Raya SerpongSouth TangerangBanten15314Indonesia Department of Agricultural Industry IPB UniversityJl.Raya DramagaBogorWest Java16680Indonesia Department of Aquaculture Vocational SchoolIPB UniversityJl.Kumbang 14BogorWest Java16680Indonesia Aquaculture Center for Brackish Water Situbondo Jl.Raya PecaronEast Java68351Indonesia Department of Mechanical Engineering Faculty of EngineeringMercu Buana UniversityJl.Meruya SelatanKebun JerukJakarta11650Indonesia Research Center for Metallurgy and Materials Indonesian Institute of SciencesPUSPIPTEKSouth TangerangBanten15314Indonesia

The effects of nanobubble on the growth environment,such as dissolved oxygen(DO)and total virus-bacteria,and growth performance,such as growth,feed conversion ratio(FCR),survival rate(SR),total harvest,and productivity,were investigated in Penaeus vannamei shrimp *** present study was carried out in 50 m2 indoor raceway ponds for 81 days with stocking density being set to 680 shrimp m􀀀3 in two types of treatment:nanobubble and diffuser aerator.A paddlewheel was used to distribute the oxygen saturation levels throughout the *** presence of nanoparticles was detected using a dynamic light scattering method and was reported to be 82.38 nm in size and􀀀26 mV for zeta potential *** was significantly higher under nanobubble *** virus-bacteria and FCR decreased,whereas SR,growth(weight and length),total harvest,and productivity increased with increasing *** SR was reported to reach 95%.The average weight and length of *** were 15.1±1.8 g and 13.1±1.1 cm,*** total harvest and productivity have doubled to 436 kg and 8.7 kg/*** results revealed that nanobubble has managed to maintain DO at the optimal range and affected the shrimp growth significantly(P<0.05).

关键词： Nanobubble Penaeus vannamei Growth DO concentration

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Tensile Strain Capacity Prediction of Engineered Cementitious Composites (ECC) Using Soft Computing Techniques

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Computer Modeling in Engineering & Sciences 2024年第3期138卷 2925-2954页

作者： Rabar H.Faraj Hemn Unis Ahmed hardi Saadullah Fathullah Alan Saeed Abdulrahman Farid Abed Civil Engineering Department University of HalabjaHalabjaIraq University of Sulaimani College of EngineeringCivil Engineering DepartmentSulaimaniIraq Civil Engineering Department Komar University of Science and TechnologySulaimaniIraq Department of Engineering Kurdistan Institution for Strategic Studies and Scientific ResearchesSulaimaniIraq Department of Civil Engineering American University of SharjahSharjah26666UAE

Plain concrete is strong in compression but brittle in tension,having a low tensile strain capacity that can significantly degrade the long-term performance of concrete structures,even when steel reinforcing is *** order to address these challenges,short polymer fibers are randomly dispersed in a cement-based matrix to forma highly ductile engineered cementitious composite(ECC).Thismaterial exhibits high ductility under tensile forces,with its tensile strain being several hundred times greater than conventional *** concrete is inherently weak in tension,the tensile strain capacity(TSC)has become one of the most extensively researched *** a result,developing a model to predict the TSC of the ECC and to optimize the mixture proportions becomes ***,the effort required for laboratory trial batches to determine the TSC is *** achieve the research objectives,five distinct models,artificial neural network(ANN),nonlinear model(NLR),linear relationship model(LR),multi-logistic model(MLR),and M5P-tree model(M5P),are investigated and employed to predict the TSCof ECCmixtures containing fly *** from115 mixtures are gathered and analyzed to develop a new *** input variables include mixture proportions,fiber length and diameter,and the time required for curing the various *** model’s effectiveness is evaluated and verified based on statistical parameters such as R2,mean absolute error(MAE),scatter index(SI),root mean squared error(RMSE),and objective function(OBJ)***,the ANN model outperforms the others in predicting the TSC of the ECC,with RMSE,MAE,OBJ,SI,and R2 values of 0.42%,0.3%,0.33%,0.135%,and 0.98,respectively.

关键词： Engineered cementitious composites fly ash curing time tensile strain capacity modeling

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China’s Third Plenum:Implications for Indonesia’s Education

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China Report ASEAN 2024年第8期9卷 28-28页

作者： Antony hardi 不详

The Third Plenum holds a unique place in the Communist Party of China(CPC)’s political calendar because the Party often introduces significant reforms and outlines strategic priorities during the *** instance,the Third Plenary Session of the 11th Central Committee of CPC in 1978 marked the beginning of China’s reform and opening-up drive under Deng Xiaoping,after which the country underwent historic economic development.

关键词： holds instance Third

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Revisiting the formation mechanism for coronal rain from previous studies

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Research in Astronomy and Astrophysics 2021年第10期21卷 135-150页

作者： Le-Ping Li hardi Peter Lakshmi Pradeep Chitta Hong-Qiang Song CAS Key Laboratory of Solar Activity National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Max Planck Institute for Solar System Research D-37077 GottingenGermany Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment and Institute of Space SciencesShandong UniversityWeihai 264209China

Solar coronal rain is classified generally into two categories:flare-driven and quiescent coronal *** latter is observed to form along both closed and open magnetic field ***,we proposed that some of the quiescent coronal rain events,detected in the transition region and chromospheric diagnostics,along loop-like paths could be explained by the formation mechanism for quiescent coronal rain facilitated by interchange magnetic reconnection between open and closed field *** this study,we revisited 38 coronal rain reports from the *** these earlier works,we picked 15 quiescent coronal rain events out of the solar limb,mostly suggested to occur in active region closed loops due to thermal nonequilibrium,to scrutinize their formation *** the extreme ultraviolet images and line-of-sight magnetograms,the evolution of the quiescent coronal rain events and their magnetic fields and context coronal structures is *** find that six,comprising 40%,of the 15 quiescent coronal rain events could be totally or partially interpreted by the formation mechanism for quiescent coronal rain along open structures facilitated by interchange *** results suggest that the quiescent coronal rain facilitated by interchange reconnection between open and closed field lines deserves more attention.

关键词： plasmas instabilities Sun:corona Sun:UV radiation magnetic reconnection Sun:magnetic fields

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Dense core response to forced acoustic fields in oxygen-hydrogen rocket flames

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Propulsion and Power Research 2020年第3期9卷 197-215页

作者： Youhi Morii Scott Beinke Justin hardi Taro Shimizu Hideto Kawashima Michael Oschwald Research and Development Directorate JAXASagamihara.252-5210Japan Institute of Fluid Science.Tohoku University Sendai980-8577Japan Institute of Space Propulsion DLRLampoldshausen74239Germany Research and Development Directorate JAXATsukuba305-0047Japan Institute of Jet Propulsion and Turbomachinery RWTH.Aachen52062Germany

Oscillatory combustion representative of thermo-acoustic instability in liquid rockets is simulated by experiment and LES calculation to investigate the flame behavior in *** particular,we focus on how the velocity and pressure fluctuations affect the behavior of the dense oxygen jet,or‘LOx core’.The test case investigated is a high pressure,multiinjector,oxygen-hydrogen combustor with a siren for acoustic ***,the LES calculation is validated by the resonant frequencies and average flame topology.A precise frequency correction is conducted to compare experiment with *** an unforced case,a pressure fluctuation case,and a velocity fluctuation case are *** can quantitatively reproduce the LOx core shortening and flattening that occurs under transverse velocity excitation as it is observed in the *** the other hand,the core behavior under pressure excitation is almost equal to the unforced case,and little shortening of the core *** LOx core flattening is explained by the pressure drop around an elliptical cylinder using the unsteady Bemoulli ***,it is shown that the shortening of the LOx core occurs because theflattening enhances combustion by mixing and increase of the flame surface area.

关键词： Liquid rocket engine Combustion instability Computational fluid dynamics(CFD) Large eddy simulation(LES) Supercritical fluid

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Correlation between pathogenesis of dampness syndrome and Interleukin-2,Interleukin-8 in rats

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Journal of Traditional Chinese Medicine 2013年第1期33卷 114-118页

作者： Xiaolin Chen Youwu Lin Shijun Zhang Zexiong Chen Carlini Fan hardi Ting Xiang Baoguo Sun Department of Traditional Chinese Medicine The First Affiliated Hospital of SunYat-Sen Universty

OBJECTIVE： To explore the pathogenesis of dampness syndrome by detecting the changes of inter- leukin-2 （IL-2） and interleukin-8 （IL-8） levels. METHODS： Female Sprague Dawley rats were divided randomly into five groups according to the random number table： a normal group （Group Ⅰ ）, an external dampness group （Group Ⅱ ）, an internal dampness group （Group Ⅲ）, and an external and internal dampness group （Group Ⅳ）. Twenty days after the model made, IL-2 and IL-8 levels were detected by radioimmunoassay method. RESULTS： The IL-2 and IL-8 levels among groups were significant （F=3.102, P〈0.05; F=2.657, P〈0.05, respectively）. The level of IL-2 in Group Ⅱ and Group Ⅲ were higher than that in Group Ⅰ （P〈0.05, P〈0.01, respectively）, especially higher in the Group Ⅲ compared with Group Ⅱ （P〈0.05）. The level of IL-8 in Group Ⅲ were higher than those in Group Ⅰ, Group Ⅱ and GroupⅣ （P〈0.05, P〈0.01, P〈 0.05, respectively）. In the Group Ⅲ, the 24-hour water and body weight were higher than that in the Group Ⅱ （all P〈0.05）, and spontaneous movement frequency was higher than those in Group Ⅱ and GroupⅣ （P〈0.05）. CONCLUSION： Immune activation and inflammatory reaction might be easily caused by external danpness other than internal dampness.

关键词： Interior dampness syndrome Excessivedampness syndrome Interleukin-2 Interleukin-8

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Multiplexed grating velocimetry for biomedical applications

Multiplexed grating velocimetry for biomedical applications

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Photonics Asia 2004:Information Processing and Data Storage

作者： hardi Darmawan University of Sriwijaya Faculty of Medicine Department of Physiology and Biophysics Jalan dr.Moh.Ali Kompleks RS Moh.Hoesin Palembang 30126 Indonesia

A novel multiplexed velocimeter using a proprietary grating is proposed for measuring the velocity of particles in blood vessel. Two orthogonal gratings are multiplexed. The specially designed multipl

关键词： Grating velocimetry multiplexed grating blood flow biomedical application

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Current scenario of traditional medicines in management of diabetic foot ulcers:A review

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World Journal of Diabetes 2023年第1期14卷 1-16页

作者： Abhijit S Rayate Basavraj S Nagoba Sachin S Mumbre hardi B Mavani Ajay M Gavkare Advait S Deshpande Department of Surgery Maharashtra Institute of Medical Sciences&Research(Medical College)Latur 413531India Department of Microbiology Maharashtra Institute of Medical Sciences&Research(Medical College)Latur 413531India Department of Community Medicine Ashwini Rural Medical CollegeSolapur 413006India Department of Physiology Maharashtra Institute of Medical Sciences&Research(Medical College)Latur 413531India

Diabetic foot infections and diabetic foot ulcers(DFU)cause significant suffering and are often *** have three important pathogenic factors,namely,microangiopathy causing local tissue anoxia,neuropathy making the foot prone to injuries from trivial trauma,and local tissue hyperglycaemia favouring infection and delaying the wound *** have been the leading cause for non-traumatic amputations of part or whole of the *** medicines focus mainly on euglycaemia,antimicrobials,debridement and wound cover with grafts,and off-loading *** in euglycaemic control,foot care and footwear,systemic antimicrobial therapy,and overall health care access and delivery,have resulted in an overall decrease in ***,the process of wound care after adequate debridement remains a major cost burden globally,especially in developing *** process revolves around two basic concerns regarding control/eradication of local infection and promotion of faster healing in a chronic DFU without *** modulation with various dressings and techniques are often a costly *** aspects of the topical therapy with modern/Western medicines are frequently not *** of and compliance to these therapies are important as both the wounds and their treatment are“chronic.”Naturally occurring agents/medications from traditional medicine systems have been used frequently in different cultures and nations,though without adequate clinical base/*** Chinese medicine involves restoring yin-yang balance,regulating the‘chi’,and promoting local blood *** medicines from India have been emphasizing on‘naturally’available products to control wound infection and promote all the aspects of wound *** is one more group of chemicals which are not pharmaceutical agents but can create acidic milieu in the wound to satisfy the above-mentioned basic *** natural and plant derived products(e.g

关键词： Diabetic foot infections Diabetic foot ulcers Management Traditional medicines Topical agents Wound healing

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全球制造大变局

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作者： (美)hardi Meybaum

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Rooting Potential of Mini-Cuttings for the Production of Potato Plantlets

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American Journal of Plant Sciences 2015年第2期6卷 366-371页

作者： Dilson Antonio Bisognin Mauricio Guerra Bandinelli Paula Kielse hardi Fischer Department of Plant Sciences Federal University of Santa MariaSanta MariaBrazil

The production of mini-tubers under soilless cultivation system increased the availability of pathogen-free seed potatoes. The objective of this study was to evaluate the rooting capability of mini-cuttings of potato clones as a function of the irrigation solution and the physiological age of the mother plant, under soilless cultivation system. Potato mini-cuttings were collected from young and mature plants of the cultivars Asterix and Macaca and the advanced clone SMINIA 793101-3. The young plants were newly acclimatized individuals and the mature plants were at the stage of producing mini-tubers. In the first experiment, mini-cuttings originating from summer pruning of mature plants were grown under closed soilless cultivation system irrigated with a nu- trient solution developed for the production of potato mini-tubers and a solution comprised of tap water only. The experiment was conducted in a 3 × 2 factorial arrangement (clones and irrigation solutions) in the complete random design with four replicates of 15 mini-cuttings. In the second experiment, the young and mature mini-cuttings were established under a closed soilless cultivation system irrigated with nutrient solution. The experiment was conducted in a 3 × 2 factorial arrangement (clones and physiological age of the mother plant) in the complete random design with four replicates of 15 mini-cuttings. In both experiments, the percentage of rooting and survival of mini-cuttings, number of roots and length of the longest root were assessed at 21 days of cultivation. Potato mini-cuttings can be rooted under closed soilless cultivation system irrigated with nutrient solution or tap water. Mini-cuttings of young plants have higher rooting capability compared to the ones taken from mature plants. The loss of rooting capability depends upon the potato cultivar.

关键词： Solanum tuberosum L. Nutrient Solution Physiological Age Mini-Clonal Hedge Mini-Tuber Production

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