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Effect of counter current gas phase on liquid film

Shujuan LUO, Huaizhi LI, Weiyang FEI, Yundong WANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 135-137 doi: 10.1007/s11705-009-0129-1

Abstract: The effect of counter current gas phase on the liquid film was taken into consideration.increased by 57% because of increasing liquid flow rate, while it decreased by 25% resulting from the countercurrent gas phase.

Keywords： counter current     liquid film     two phases     structured packings    

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Application of high-speed counter-current chromatography coupled with high performance liquid chromatography

Shengguo DENG, Zeyuan DENG, Yawei FAN, Jing LI, Rong LIU, Dongmei XIONG,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 375-382 doi: 10.1007/s11705-009-0247-9

Abstract: D-xylopyranosyl (1→2)-β-D-glucopyranoside was separated and purified by semi-preparative high-speed counter-current

Keywords： two-phase-solvent     flavonoid glycoside     high-speed counter-current     macroporous     counter-current chromatography    

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Development of a cloud condensation nuclei (CCN) counter using a laser and charge-coupled device (CCD

Mikyung PARK, Jinkwan OH, Kihong PARK

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 313-319 doi: 10.1007/s11783-011-0346-y

Abstract: A continuous flow streamwise thermal gradient cloud condensation nuclei (CCN) counter with an aerosolevaluated by comparing its measured number concentrations with those measured with a condensation particle counterThe CCN counter worked well in the particle number concentration range of 0.6–8000 #·cm and the minimumThe supersaturation in the CCN counter with varying temperature difference was determined by using size-selectedThe developed CCN counter was applied to investigate CCN activity of atmospheric ultrafine particles

Keywords： aerosol     cloud condensation nuclei (CCN) counter     ultrafine particle    

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Thermodynamic performance experiment and cooling number calculation of a counter-flow spray humidifier

WANG Yuzhang, LI Yixing, WENG Shilie, WANG Yonghong

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 43-47 doi: 10.1007/s11708-008-0005-6

Abstract: An experimental investigation of the thermodynamic performance of a counter-flow spray humidifier was

Keywords： temperature increment     counter-flow     experimental investigation     temperature     water-gas    

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Finite element modeling of counter-roller spinning for large-sized aluminum alloy cylindrical parts

Dawei ZHANG, Fan LI, Shuaipeng LI, Shengdun ZHAO

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 351-357 doi: 10.1007/s11465-019-0528-z

Abstract: Counter-roller spinning (CRS), where the mandrel is replaced by rollers, is an effective means of manufacturing

Keywords： large-sized cylindrical part     counter-roller spinning     aluminum alloy     finite element method     distributed    

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The Development Situation, Future and Counter Measures of Remanufacturing Industry in China

Wen-qiang Liu,Jun-yuan Mo,Cheng-kui Gu

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 123-131 doi: 10.15302/J-FEM-2016021

Abstract: Currently, resource supply and demand contradiction, and over-loaded environment capacity have become a bottleneck for sustainable economic development in China. Electro-mechanical products are approaching a peak of obsolescence, and massive abandoned electro-mechanical products are causing severe environmental pollution, huge waste of resources and potential safety hazard. Remanufacturing is repairing or modifying worn mechanical products using high-tech method, which buffers the contradiction between wasting and shortage of resources, and brings industry towards a comprehensive utilization of resource and environmental protection. As a new strategic industry, remanufacturing, which is highly coherent with the development strategy of the circular economy, is still in its infancy in China. This paper analyzes the developmental trends and problems of the remanufacturing industry in China, and proposes promoting measures based on the engineering practices of remanufacturing.

Keywords： remanufacturing     industry     measures     development    

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An efficient counter-based Wallace-tree multiplier with a hybrid full adder core for image blending Research Articles

Ayoub SADEGHI, Nabiollah SHIRI, Mahmood RAFIEE, Mahsa TAHGHIGH

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 6,   Pages 950-965 doi: 10.1631/FITEE.2100432

Abstract:

We present a new -based Wallace-tree (CBW) 8×8 . The ‍’‍s s are implemented with a new hybrid (FA) cell, which is based on the (TG) technique. The proposed FA, TG-based AND gate, and hybrid half adder (HA) generate :3 (4≤≤7) digital s with the ability to save at least 50% area occupation. Simulations by 90 nm technology prove the superiority of the proposed FA and digital s under different conditions over the state-of-the-art designs. By using the proposed cells, the CBW exhibits high driving capability, low power consumption, and high speed. The CBW has a 0.0147 mm die area in a pad. The post-layout extraction proves the accuracy of experimental implementation. An mechanism is proposed, in which a direct interface between MATLAB and HSPICE is used to evaluate the presented CBW in image processing applications. The peak signal-to-noise ratio (PSNR) and structural similarity index metric (SSIM) are calculated as image quality parameters, and the results confirm that the presented CBW can be used as an alternative to designs in the literature.

Keywords： Full adder     Transmission gate     Counter     Multiplier     Three-dimensional layout     Image blending    

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Numerical analysis of 3-D unsteady flow in a vaneless counter-rotating turbine

ZHAO Qingjun, WANG Huishe, ZHAO Xiaolu, XU Jianzhong

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 352-358 doi: 10.1007/s11708-007-0053-3

Abstract: To reveal the unsteady flow characteristics of a vaneless counter-rotating turbine (VCRT), a three-dimensional

Keywords： unsteady flow     three-dimensional     pressure distribution     similar result     unsteady simulation    

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Low-power, high-speed, and area-efficient sequential circuits by quantum-dot cellular automata: T-latch and counter Research Article

Mohammad GHOLAMI, Zaman AMIRZADEH

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 3,   Pages 457-469 doi: 10.1631/FITEE.2200361

Abstract:

cellular automata (QCA)%29&ck%5B%5D=abstract&ck%5B%5D=keyword'> is a new nanotechnology for the implementation of nano-sized digital circuits. This nanotechnology is remarkable in terms of speed, area, and power consumption compared to complementary metal-oxide-semiconductor (CMOS) technology and can significantly improve the design of various logic circuits. We propose a new method for implementing a in QCA technology in this paper. The proposed method uses the intrinsic features of QCA in timing and clock phases, and therefore, the proposed cell structure is less occupied and less power-consuming than existing implementation methods. In the proposed , compared to previous best designs, reductions of 6.45% in area occupation and 44.49% in power consumption were achieved. In addition, for the first time, a reset-based and a with set and reset capabilities are designed. Using the proposed , a new 3-bit is developed which reduces 2.14% cell numbers compared to the best of previous designs. Moreover, based on the 3-bit , a 4-bit is designed, which reduces 0.51% cell numbers and 4.16% cross-section area compared to previous designs. In addition, two selective s are introduced to count from 0 to 5 and from 2 to 5. Simulations were performed using and tools in coherence vector engine mode. The proposed circuits are compared with related designs in terms of delay, cell numbers, area, and leakage power.

Keywords： Quantum-dot cellular automata (QCA)     Quantum-dot     T-latch     T-flip-flop     Counter     Selective counter     QCADesigner    

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Effect of current density on groundwater arsenite removal performance using air cathode electrocoagulation

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1399-1

Abstract:

• With the same charge, current density had little effect on As(III)

Keywords： Electrocoagulation     Air cathode     Arsenic     Current density     Energy consumption    

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Facing Challenges and Searching Chances at the Same Time——The Present Status of Chinese Flower Enterprise

Chen Junyu

Strategic Study of CAE 2002, Volume 4, Issue 10,   Pages 17-20

Abstract:

This report points out that the flower enterprise is a promising enterprise, growing up continuously and becoming better and better. The author then compares and analyses differences and commonalities between the Chinese flower enterprise and the world flower enterprise. Using ’99 Kunming International Horticultural Exposition as an example, the author is convinced that Chinese gardens and flowers may reach the first level in the world, but “Chinese Characteristics” ought to be strengthened significantly. At the beginning of China’s becoming a member of WTO, a very good way has been found for facing challenges and utilizing good chances——the so-called “Hua-Hui Xin Si Hua”，viz,①traditional Chinese famous flowers internationalized;②world famous flowers becoming“sinicized” and localized;③ wild flowers introduced and acclimatized;④flower production and management highly specialized and in large-scale. It is possible to reach the present level of flower development in the world in 50 years or more. Then，China will be turned from the “Mother of Gardens” to the “Kingdom of World Flowers”.

Keywords： challenges     searching chances     counter-measure     flowers     ornamentals     flower industry     prospects    

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EGG PRODUCTION IN CHINA: CURRENT STATUS AND OUTLOOK

Ning YANG

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 1,   Pages 25-34 doi: 10.15302/J-FASE-2020363

Abstract: Eggs are one of the most nutritious and affordable animal products worldwide. From 1985, egg production in China has retained the leading place in the world. A total of 33 Mt of eggs were produced in 2019 representing ˃ 40% of the world total production. Egg production in China is characterized by diversity in several aspects, including layer breeds, products and production systems. New breeds and synthetic lines are developed to improve the genetic potentials of egg production and feed efficiency of layers. In the past, layer farms were run mostly by small households with 100 to 1000 layers per farm. Over the past decades, egg production in China has developed toward standardization and expansion of production systems, and many of these modern intensive farms raise millions of layers. Although the Chinese egg products maintain strong competitiveness over other animal products and imported egg products, the egg industry will grow at a slower pace compared to the past. Chinese consumers are more concerned about the quality and safety of eggs and egg products, as well as the environmental issues related to animal production, which presents challenges for the Chinese egg industry.

Keywords： poultry farms     China     diversity     egg production     trends    

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A New Real-time Detecting Method for Harmonic Current Based on Iterative Algorithm in Active Power Filter

Li Zicheng,Sun Yukun

Strategic Study of CAE 2006, Volume 8, Issue 1,   Pages 46-50

Abstract: Based on the foundation of load current analysis, a new real-time detecting method for harmonic current

Keywords： active power filter     harmonics current     active current     reactive current    

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EGG PRODUCTION IN CHINA: CURRENT STATUS AND OUTLOOK

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 1,   Pages 25-34

Abstract:

• China is now the largest egg production country worldwide

• Egg production in China is characterized by diversity in several aspects

• China is now capable of breeding new varieties, with more than 50% of the market share

• Policies have been implemented to ensure sustainable development of egg production

• Integrating crop-chicken-vegetable production system is established

 

Eggs are one of the most nutritious and affordable animal products worldwide. From 1985, egg production in China has retained the leading place in the world. A total of 33 Mt of eggs were produced in 2019 representing ˃ 40% of the world total production. Egg production in China is characterized by diversity in several aspects, including layer breeds, products and production systems. New breeds and synthetic lines are developed to improve the genetic potentials of egg production and feed efficiency of layers. In the past, layer farms were run mostly by small households with 100 to 1000 layers per farm. Over the past decades, egg production in China has developed toward standardization and expansion of production systems, and many of these modern intensive farms raise millions of layers. Although the Chinese egg products maintain strong competitiveness over other animal products and imported egg products, the egg industry will grow at a slower pace compared to the past. Chinese consumers are more concerned about the quality and safety of eggs and egg products, as well as the environmental issues related to animal production, which presents challenges for the Chinese egg industry.

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New method to determine optimum impedance of fault current limiters for symmetrical and/or asymmetrical None

Mahmoud MODARESI, Hamid LESANI

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 2,   Pages 297-307 doi: 10.1631/FITEE.1601689

Abstract: To select the type and value of the impedance of fault current limiters (FCLs) for power network designersoptimization of FCL impedance is based on a goal function that maximizes the reduction of the fault current

Keywords： Fault current limiter (FCL)     FCL impedance     Short circuit current     Fault current     Power system    

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Title Author Date Type Operation

Effect of counter current gas phase on liquid film

Shujuan LUO, Huaizhi LI, Weiyang FEI, Yundong WANG

Journal Article

Application of high-speed counter-current chromatography coupled with high performance liquid chromatography

Shengguo DENG, Zeyuan DENG, Yawei FAN, Jing LI, Rong LIU, Dongmei XIONG,

Journal Article

Development of a cloud condensation nuclei (CCN) counter using a laser and charge-coupled device (CCD

Mikyung PARK, Jinkwan OH, Kihong PARK

Journal Article

Thermodynamic performance experiment and cooling number calculation of a counter-flow spray humidifier

WANG Yuzhang, LI Yixing, WENG Shilie, WANG Yonghong

Journal Article

Finite element modeling of counter-roller spinning for large-sized aluminum alloy cylindrical parts

Dawei ZHANG, Fan LI, Shuaipeng LI, Shengdun ZHAO

Journal Article

The Development Situation, Future and Counter Measures of Remanufacturing Industry in China

Wen-qiang Liu,Jun-yuan Mo,Cheng-kui Gu

Journal Article

An efficient counter-based Wallace-tree multiplier with a hybrid full adder core for image blending

Ayoub SADEGHI, Nabiollah SHIRI, Mahmood RAFIEE, Mahsa TAHGHIGH

Journal Article

Numerical analysis of 3-D unsteady flow in a vaneless counter-rotating turbine

ZHAO Qingjun, WANG Huishe, ZHAO Xiaolu, XU Jianzhong

Journal Article

Low-power, high-speed, and area-efficient sequential circuits by quantum-dot cellular automata: T-latch and counter

Mohammad GHOLAMI, Zaman AMIRZADEH

Journal Article

Effect of current density on groundwater arsenite removal performance using air cathode electrocoagulation

Journal Article

Facing Challenges and Searching Chances at the Same Time——The Present Status of Chinese Flower Enterprise

Chen Junyu

Journal Article

EGG PRODUCTION IN CHINA: CURRENT STATUS AND OUTLOOK

Ning YANG

Journal Article

A New Real-time Detecting Method for Harmonic Current Based on Iterative Algorithm in Active Power Filter

Li Zicheng,Sun Yukun

Journal Article

EGG PRODUCTION IN CHINA: CURRENT STATUS AND OUTLOOK

Journal Article

New method to determine optimum impedance of fault current limiters for symmetrical and/or asymmetrical

Mahmoud MODARESI, Hamid LESANI

Journal Article