-
1001
Removal of iron and manganese from acidic aqueous solution by pyrite and pyrite-calcium sulfite
Published 2025-02-01“…After the process of iron removal, calcium sulfite and air were used to remove manganese ions from the solution, and the efficiency of manganese ion removal was larger than 75% in 240 min (with less than 0.05 g/L Fe and 0.5 g/L Mn in the solution). Meanwhile, experiments were conducted to simultaneously remove iron and manganese from artificially simulated acidic leaching solution of laterite nickel ore. …”
Get full text
Article -
1002
RIS-based indoor wireless communication signal enhancement system
Published 2022-12-01“…By utilizing the tunable performances of the reconfigurable intelligent surface (RIS) to manipulate the reflected electromagnetic waves, an indoor wireless communication signal enhancement system was constructed, which could improve the signal quality of the receiving terminal in where the initial wireless signals were weak.First, a RIS unit cell with dynamically tunable phase characteristics was designed, and the dynamic change of the 2 bit reflection phases was realized by switching the working states of the two active diodes.Then, experiments were conducted to verify that the proposed RIS could dynamically reshape the beam direction.Finally, a host computer and field programmable gate array (FPGA) were used to realize the intelligent control of the coding sequences applied onto the proposed RIS.By changing the spatial phase distribution on the RIS aperture, the output beam could be controlled in real-time.By traversing the pre-loaded coding sequences, the enhancement of received signal in indoor wireless environments had been experimentally demonstrated.Both simulation and experiment results verify that the proposed RIS system can effectively and dynamically improve the quality of the indoor wireless signals.The received signal is increased by an average of 8.9 dB, with a maximum of 22 dB.The proposed work may provide basic hardware technical support for the optimization of 5G and the next-generation communication networks.…”
Get full text
Article -
1003
One-Bit Distributed Sparse Spectrum Sensing Based on the DQA-ZA-LMS and DQA-RZA-LMS Algorithms Over Adaptive Networks
Published 2024-01-01“…The sparsity aware feature of the proposed algorithm can help the network to track and estimate sparse random vectors that are shown to be the case with the spectrum of the new generation wireless communication systems such as 4G, 5G, 6G, and beyond. The spectrum sensing is considered in this paper to be performed by small cell eNode Bs (SC-eNBs) for the 4th generation long term evolution (LTE) and the next generation eNB (ng-eNB) networks for the 5th and 6th generation mobile communication systems that are scattered in an area collecting distributed quantized data from the environment and working collaboratively to estimate the sparse spectrum vectors. …”
Get full text
Article -
1004
-
1005
Blood Donor Selection Profile an Important Tool for Blood Safety: An Institutional Experience
Published 2024-05-01“…Out of the reasons for deferral, majority 497/1223 (40.6%) donors were deferred due to hemoglobin <12.5 g/dl, followed by 156/1223 (12.8%) deferrals due to alcohol intake within the past 72 h. …”
Get full text
Article -
1006
Synthesis, antimycobacterial and antifungal evaluation of new 4-(furan-2-ylmethyl)-6-methylpyridazin-3(2H)-ones
Published 2024-01-01“…Amongst the compounds tested, 5e, 5g, 5i and 6e exhibited highest activity against Mycobacterium tuberculosis, while 5h, 6d and 6f showed moderate in vitro antifungal activities against Candida albicans and Candida parapsilosis.…”
Get full text
Article -
1007
A lightweight lattice-based group signcryption authentication scheme for Internet of things
Published 2024-04-01“…The 5G era has brought opportunities for the rapid development of the Internet of things. …”
Get full text
Article -
1008
Isolation of Carrageenan from Eucheuma cottonii by Variying Alkaline Solutions
Published 2025-01-01“…The highest gel strength test results were obtained in an alkaline solution of Ca(OH)2 80%: NaOH 20%, which was 252.5 g bloom, and the lowest was made in a solution of Ca(OH)2 80%: KOH 20%, which was 21.0 g bloom. …”
Get full text
Article -
1009
Homogenized Poly(3-hexylthiophene)/Methanofullerene Film by Addition of End-Functionalized Compatibilizer and Its Application to Polymer Solar Cells
Published 2015-01-01“…Homogeneous and reproducible polymer solar cell with an average of 3.71% power conversion efficiency under AM1.5G irradiation is fabricated with 10% HOC-P3HT-COH in P3HT/PCBM layer.…”
Get full text
Article -
1010
晶状体上皮细胞清除预防后囊混浊
Published 2001-01-01“…晶状体囊袋内超声乳化吸出晶状体皮质, 保留完整囊袋, 胰蛋白酶组向囊袋内注入2.5 g/ L 胰蛋白酶保留1 min , 冲洗清除晶状体上皮细胞, 最后撕去前囊。对照组将胰蛋白酶换为平衡盐水, 其他方法相同, 术后观察 后囊混浊的发生情况。…”
Get full text
Article -
1011
Microwave-Assisted Digestion Using Dilute Nitric Acid and Hydrogen Peroxide for Multielement Determination in Wheat Flour by ICP-MS
Published 2023-01-01“…The optimal conditions for microwave digestion of ground wheat samples were found to be 0.5 g of the sample, 9 mL of 8 mol/L HNO3, and 3 mL of 33% H2O2 at 210°C. …”
Get full text
Article -
1012
Foresight study for addressing megatrends in information and communication technology (ICT)
Published 2025-01-01“…The study highlights emerging megatrends in the ICT sector, such as AI integration, cybersecurity challenges, and the shift toward 5G, underscoring the need for continuous upskilling to remain competitive in the global market. …”
Get full text
Article -
1013
原发性肝癌组织双向电泳技术优化
Published 2010-01-01“…【目的】 优化双向凝胶电泳的实验步骤,总结出一套适用于原发性肝癌组织的双向凝胶电泳技术65377;【方法】 对双向电泳实验中的关键环节:样本处理65380;上样方法65380;聚焦条件等进行研究与优化,考马斯亮蓝染色后进行凝胶图像比较65377; 【结果】 采用7 mmol /L尿素65380;2 mol /L硫脲65380;40 g/L CHAPS65380;100 mmol /L DTT65380;5 g/L (pH 3-10) IPG buffer,1 mmol /L PMSF作为裂解液,丙酮沉淀蛋白,主动水化上样法,聚焦电压达到140 kV可以得到分辨率高65380;重复性好的结果65377; 【结论】 上述改良提高了2-D图谱中蛋白位点的分辨率和重复性,为原发性肝癌组织的蛋白质组学研究奠定了基础65377;…”
Get full text
Article -
1014
Secret sharing-based authentication and key agreement protocol for machine-type communications
Published 2019-04-01“…One of the main challenges for the development of the Internet of Things is the authentication of large numbers of devices/sensors, commonly served by massive machine-type communications, which jointly with long-term evolution has been considered one of the main foundations for the continued growth of Internet of Things connectivity and an important issue to be treated in the development of 5G networks. This article describes some protocols for the group-based authentication of devices/sensors in Internet of Things and presents a new group authentication protocol based on Shamir’s secret and Lagrange interpolation formula. …”
Get full text
Article -
1015
SEASONALITY AND BIOCONTROL OF MAIESTAS KNIGHTI (HEMIPTERA: CICADELLIDAE) ON SOME VEGETABLE PLANTS OF CUCURBITACEAE IN ERBIL PROVINCE, KURDISTAN REGION -IRAQ
Published 2024-12-01“…The bio-pesticides rates were involved (2g/L B. thuriengiensis, 5g/L B. bassiana, and 10 ml/L T. erecta) to be used in fields, then reduction was recorded on the 3rd, the 5th, and 7th days. …”
Get full text
Article -
1016
-
1017
Fingertips Ischemia, Nephroangiosclerosis, and Focal Segmental Glomerulosclerosis: Is Genetic Thrombophilia the Unique Explanation?
Published 2014-01-01“…Case Presentation. 53-years-old-man with essential hypertension and nonnephrotic proteinuria (1.3 gr/24 h) and with normal renal function (eGFR-MDRD 123 mL/min/1.73 m2) was admitted to nephrology department; kidney biopsy showed FSGS; two years later the patient presented with ulceration and ischemic gangrene of the IV and V right-hand fingertips; genetic analysis demonstrated polymorphism of the methylenetetrahydrofolate reductase genes C677T (heterozygote C677T/1298AC with normal value of homocysteine) and mutations of prothrombin gene G20210A and of plasminogen activator inhibitor-1 4G/5G 675 with slight increase of its value. After five years from biopsy, 24-hours proteinuria was still around 1–1.3 g/die; renal function was still normal (eGFR 107 ml/min/1.73 m2). …”
Get full text
Article -
1018
Physicochemical Properties of Tomato Paste Fortified Functional Cheddar Cheese
Published 2023-07-01“…Tomato paste was added at 5 g/L, 10 g/L, and 15 g/L during the first curd formation, together with calcium chloride (CaCl<sub>2</sub>). …”
Get full text
Article -
1019
The Coupling Dynamic Analysis and Field Test of TBM Main System under Multipoint Impact Excitation
Published 2015-01-01“…It also shows that, in normal excavation conditions, the acceleration amplitude of the cutterhead in three directions ranges from 1.5 g to 2 g. These results provide theoretical basis for the antivibration design and structural optimization of TBM.…”
Get full text
Article -
1020
Effects of Organic and Inorganic Fertilizers on the Growth of NH-Ae 47-4 Variety of Okra
Published 2016-05-01“…The fertilizers were weighed and applied at 5g, 10g and 15g and were replicated three times and each having a control. …”
Get full text
Article