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Design of the Optical System with Large Relative Aperture and Large Linear Field of View

Pan Junye

Strategic Study of CAE 2000, Volume 2, Issue 8,   Pages 89-90

Abstract:

In this paper following discussion the author concluded that the optical system for IR detecting in

Keywords： IR detecting     relative aperture     large field of view     off-axis system     aspheric surface    

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Feature extraction of hyperspectral images for detecting immature green citrus fruit

Yongjun DING, Won Suk LEE, Minzan LI

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 4,   Pages 475-484 doi: 10.15302/J-FASE-2018241

Abstract:

At an early immature growth stage of citrus, a hyperspectral camera of 369–1042 nm was employed to acquire 30 hyperspectral images in order to detect immature green fruit within citrus trees under natural illumination conditions. First, successive projections algorithm (SPA) were implemented to select 677, 804, 563, 962, and 405 nm wavebands and to construct multispectral images from the original hyperspectral images for further processing. Then, histogram threshold segmentation using NDVI of 804 and 677 nm was implemented to remove image backgrounds. Three slope parameters, calculated from the pairs 405 and 563 nm, 563 and 677 nm, and 804 and 962 nm were used to construct a classifier to identify the potential citrus fruit. Then, a marker-controlled watershed segmentation based on wavelet transform was applied to obtain potential fruit areas. Finally, a green fruit detection model was constructed according to Grey Level Co-occurrence Matrix (GLCM) texture features of the independent areas. Three supervised classifiers, logistic regression, random forest and support vector machine (SVM) were developed using texture features. The detection accuracies were 79%, 75%, and 86% for the logistic regression, random forest, and SVM models, respectively. The developed algorithm showed a great potential for identifying immature green citrus for an early yield estimation.

Keywords： hyperspectral     green citrus     image processing     fruit detection     precision agriculture     yield mapping    

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Technical Analysis and Construction of National Lightning Detecting Network

Xu Xiaofeng

Strategic Study of CAE 2002, Volume 4, Issue 5,   Pages 7-13

Abstract: with the developed countries, China has some gaps in the fields of lightning studying, forecasting and detectingThe present situation and the direction of lightning detecting technology at home and abroad are alsoSeveral suggestions and issues have been proposed for constructing the national lightning detecting network

Keywords： lightning detecting     technical analysis     system construction    

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The Interval Extension Assessment Method of Water Environmental Quality and Its Application

Hu Baoqing

Strategic Study of CAE 2001, Volume 3, Issue 6,   Pages 53-56

Abstract:

On the basis of IR distance this paper gives out IR extension assessment method and its application

Keywords： IR distance     IR correlative function     IR extension assessment    

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Generating Available Scheme for Extension Detecting Technology

Yu Yongquan ,Zhang Jiwen

Strategic Study of CAE 2002, Volume 4, Issue 1,   Pages 64-68

Abstract:

This work shows a method to obtain an available scheme for extension detecting technology.Based on the theory of extenics, some definitions and conceptions about extension detecting are described

Keywords： detecting matter-element     detecting element     extension set     extension tree    

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A Study About IC and IR in Principal-gent RelationshipUnder the Engineer Supervision Institution

Qin Xuan

Strategic Study of CAE 2007, Volume 9, Issue 4,   Pages 45-49

Abstract: principal-agent theory, the Incentive compatibility constraint(IC)and the participation constraint (IRdrawn:The incentive compatibility constraint (IC) is more important than participation constraint (IR

Keywords： supervision     employer     engineer     principal-gent     incentive compatibility constraint(IC)     participation constraint(IR    

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Introducing scalable 1-bit full adders for designing quantum-dot cellular automata arithmetic circuits Research Article

Hamideh KHAJEHNASIR-JAHROMI, Pooya TORKZADEH, Massoud DOUSTI,p-torkzadeh@srbiau.ac.ir,h.khajehnasir@srbiau.ac.ir,m_dousti@srbiau.ac.ir

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 8,   Pages 1264-1276 doi: 10.1631/FITEE.2100287

Abstract: Designing logic circuits using complementary metal-oxide-semiconductor (CMOS) technology at the nano scale has been faced with various challenges recently. Undesirable leakage currents, the short-effect channel, and high energy dissipation are some of the concerns. represent an appropriate alternative for possible CMOS replacement in the future because it consumes an insignificant amount of energy compared to the standard CMOS. The key point of designing arithmetic circuits is based on the structure of a 1-bit . A low-complexity block is beneficial for developing various intricate structures. This paper represents scalable 1-bit QCA structures based on cell interaction. Our proposed s encompass preference aspects of QCA design, such as a low number of cells used, low latency, and small area occupation. Also, the proposed structures have been expanded to larger circuits, including a 4-bit , a 4-bit ripple borrow subtractor (RBS), an , and a 2-bit array . All designs were simulated and verified using QCA Designer-E version 2.2. This tool can estimate the energy dissipation as well as evaluate the performance of the circuits. Simulation results showed that the proposed designs are efficient in complexity, area, latency, cost, and energy dissipation.

Keywords： Quantum-dot cellular automata (QCA)     Full adder     Ripple carry adder (RCA)     Add/sub circuit     Multiplier    

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Extension Detecting Technology

Yu Yongquan

Strategic Study of CAE 2001, Volume 3, Issue 4,   Pages 88-94

Abstract:

Detecting is a key technology which has widely been used in almost all fields.However, there are two problems in traditional detecting methods.;extension detecting technology (EDT) , which is totally different from the existing ones is developedIt use the transformation of matter element to study detecting technology.and frame of extension detecting technology are introduced.

Keywords： extension detecting technology     extrinsic     transform of matter element    

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Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 1,   Pages 34-63 doi: 10.1007/s11705-021-2050-1

Abstract: H2S is well-known as a colorless, acidic gas, with a notoriously rotten-egg smell. It was recently revealed that H2S is also an endogenous signaling molecule that has important biological functions, however, most of its physiology and pathology remains elusive. Therefore, the enthusiasm for H2S research remains. Fluorescence imaging technology is an important tool for H2S biology research. The development of fluorescence imaging technology has realized the study of H2S in subcellular organelles, facilitated by the development of fluorescent probes. The probes reviewed in this paper were categorized according to their chemical mechanism of sensing and were divided into three groups: H2S reducibility-based probes, H2S nucleophilicity-based probes, and metal sulfide precipitation-based probes. The structure of the probes, their sensing mechanism, and imaging results have been discussed in detail. Moreover, we also introduced some probes for hydrogen polysulfides.

Keywords： hydrogen sulfide     fluorescent probe     reducibility     nucleophilicity     copper sulfide precipitate     hydrogen polysulfides    

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A dual-function chemical probe for detecting erasers of lysine lipoylation

Yusheng Xie, Jie Zhang, Liu Yang, Qingxin Chen, Quan Hao, Liang Zhang, Hongyan Sun

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 1,   Pages 121-127 doi: 10.1007/s11705-021-2051-0

Abstract: Lysine lipoylation plays vital roles in cell metabolism and redox processes. For example, removal of lipoylation will decrease pyruvate dehydrogenase activity and affect the citric acid cycle. Despite the important functions of lysine lipoylation, the mechanisms for the addition and removal of this modification remain largely unexplored. Very few useful chemical tools are available to study the interactions of lysine lipoylation with its regulatory delipoylation proteins. For example, immunoaffinity purification-mass spectrometry is one of such tools, which highly relies on antibody efficiency and purification techniques. Single-step activity based fluorogenic probes developed by our groups and others is also an efficient method to study the deacylation activity. Affinity-based labeling probe using photo-cross-linker is a powerful platform to study the transient and dynamic interactions of peptide ligands with the interacting proteins. Herein, we have designed and synthesized a dual-function probe KTLlip for studying enzymatic delipoylation (eraser) activity and interaction of lysine lipoylation with the eraser at the same time. We show that KTLlip can be used as a useful tool to detect delipoylation as demonstrated by its ability to fluorescently label the eraser activity of recombinant Sirt2. We envision that the probe will help delineate the roles of delipoylation enzyme in biology.

Keywords： dual-function     fluorescent probe     labeling     photo-cross-linker     lipoylation modification     eraser     sirtuin    

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Detecting

Chengkun WANG, Xiaojian ZHANG, Jun WANG, Chao CHEN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 770-777 doi: 10.1007/s11783-012-0412-0

Abstract: nitrosodimethylamine (NDMA) and several other nitrosamines have been detected as disinfection by-products in drinking waters in many countries around the world. An ultra-performance liquid chromatography-tandem mass spectrometry method with solid phase extraction sample preparation was developed to study the occurrence of nitrosamines in several water treatment plants and distribution systems in China. Isotope labeled nitrosodi- propylamine-d14 (NDPA-d14) was selected as the internal standard for quantification. The solid phase extraction procedures including pH, enrichment process and MS/MS parameters including capillary voltage, cone gas flow, cone voltage, collision energy were optimized to give average recoveries of 26% to 112% for nine nitrosamine species. The instrument detection limits were estimated to range from 0.5 to 5 μg·L for the nine nitrosamine species. NDMA and several other nitrosamines were found at fairly high concentrations in several water treatment plants and distribution systems. NDMA was found in all locations, and the highest concentrations in cities B, G, T, and W were 3.0, 35.7, 21.3, and 19.7 ng·L , respectively. A wide range of nitrosamines concentrations and species were observed in different locations. Higher concentrations of nitrosamines were detected in distribution systems that were further away from the treatment plants, suggesting that the contact time between the residual disinfectant and natural organic matter may play an important role in the formation of these compounds.

Keywords： N-nitrosamines     water treatment plant     distribution system     ultra-performance liquid chromatography-tandem mass spectrometry    

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A creative concept for designing and simulating quaternary logic gates in quantum-dot cellular automata Research Articles

Alireza Navidi, Reza Sabbaghi-Nadooshan, Massoud Dousti,alireza.navidi@srbiau.ac.ir,r_sabbaghi@iauctb.ac.ir,m_dousti@srbiau.ac.ir

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 11,   Pages 1441-1550 doi: 10.1631/FITEE.2000590

Abstract: New technologies such as have been showing some remarkable characteristics that standard complementary-metal-oxide semiconductor (CMOS) in deep sub-micron cannot afford. Modeling systems and designing multiple-valued logic gates with QCA have advantages that facilitate the design of complicated logic circuits. In this paper, we propose a novel creative concept for . The concept has been set in , the new simulator developed by our team exclusively for QCAs’ quaternary mode. Proposed basic gates such as MIN, MAX, and different types of inverters (SQI, PQI, NQI, and IQI) have been designed and verified by . This study will exemplify how fast and accurately works by its handy set of CAD tools. A 1×4 decoder is presented using our proposed main gates. Preference points such as the minimum delay, area, and complexity have been achieved in this work. QQCA main logic gates are compared with based on carbon nanotube field-effect transistor (CNFET). The results show that the proposed design is more efficient in terms of latency and energy consumption.

Keywords： 量子点细胞自动机（QCA）；四值逻辑；量子点细胞自动模拟器（QCASim）；四值QCA（QQCA）；四值译码器；四值门    

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Research on On-line Detecting Method and Key Technologies for Part Quality (Dimension and Surface Roughness

Chen Aidi,Wang Xinyi

Strategic Study of CAE 2000, Volume 2, Issue 12,   Pages 73-77

Abstract:

To research on on-line detecting method and key technologies for part quality, based on the analysisof methods and features of on-line detecting of part dimension and surface roughness, an artificialneural network system for on-line detecting of part dimension and a fuzzy neural network system for on-linedetecting of part surface roughness are developed.The Scheme of on-line detecting method for part quality can detect part dimension and surface roughness

Keywords： on-line detecting     neural network     fuzzy neural network     dimension precision     surface roughness    

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Spin polarization strategy to deploy proton resource over atomic-level metal sites for highly selective CO electrolysis

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1772-1781 doi: 10.1007/s11705-022-2197-4

Abstract: Unlocking of the extremely inert C=O bond during electrochemical CO2 reduction demands subtle regulation on a key “resource”, protons, necessary for intermediate conversion but also readily trapped in water splitting, which is still challenging for developing efficient single-atom catalysts limited by their structural simplicity usually incompetent to handle this task. Incorporation of extra functional units should be viable. Herein, a proton deployment strategy is demonstrated via “atomic and nanostructured iron (A/N-Fe) pairs”, comprising atomically dispersed iron active centers spin-polarized by nanostructured iron carbide ferromagnets, to boost the critical protonation steps. The as-designed catalyst displays a broad window (300 mV) for CO selectivity > 90% (98% maximum), even outperforming numerous cutting-edge M–N–C systems. The well-placed control of proton dynamics by A/N-Fe can promote *COOH/*CO formation and simultaneously suppress H2 evolution, benefiting from the magnetic-proximity-induced exchange splitting (spin polarization) that properly adjusts energy levels of the Fe sites’ d-shells, and further those of the adsorbed intermediates’ antibonding molecular orbitals.

Keywords： sub>2 electrolysis     single-atom catalysts     spin polarization     proton dynamics     in situ IR    

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A perspective on the promoting effect of Ir and Au on Pd toward the ethanol oxidation reaction in alkaline

S. Y. SHEN, Y. G. GUO, G. H. WEI, L. X. LUO, F. LI, J. L. ZHANG

Frontiers in Energy 2018, Volume 12, Issue 4,   Pages 501-508 doi: 10.1007/s11708-018-0586-7

Abstract: architectures of tri-metallic PdIrAu/C electrocatalysts are designed and the promoting effect of Au and IrOn the one hand, the tri-metallic Pd Au Ir/C electrocatalyst with a solid solution alloy architectureis less active relative to Pd Ir/C and Pd/C while the stabilizing effect of Au leads to both a higher/C than those on Pd Ir/C.delivers a much higher activity with an improvement up to 50.4% compared to Pd Ir/C.

Keywords： fuel cells     catalysts     ethanol oxidation     alkaline media     solid solution alloy     near surface alloy    

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Title Author Date Type Operation

Design of the Optical System with Large Relative Aperture and Large Linear Field of View

Pan Junye

Journal Article

Feature extraction of hyperspectral images for detecting immature green citrus fruit

Yongjun DING, Won Suk LEE, Minzan LI

Journal Article

Technical Analysis and Construction of National Lightning Detecting Network

Xu Xiaofeng

Journal Article

The Interval Extension Assessment Method of Water Environmental Quality and Its Application

Hu Baoqing

Journal Article

Generating Available Scheme for Extension Detecting Technology

Yu Yongquan ,Zhang Jiwen

Journal Article

A Study About IC and IR in Principal-gent RelationshipUnder the Engineer Supervision Institution

Qin Xuan

Journal Article

Introducing scalable 1-bit full adders for designing quantum-dot cellular automata arithmetic circuits

Hamideh KHAJEHNASIR-JAHROMI, Pooya TORKZADEH, Massoud DOUSTI,p-torkzadeh@srbiau.ac.ir,h.khajehnasir@srbiau.ac.ir,m_dousti@srbiau.ac.ir

Journal Article

Extension Detecting Technology

Yu Yongquan

Journal Article

Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

Journal Article

A dual-function chemical probe for detecting erasers of lysine lipoylation

Yusheng Xie, Jie Zhang, Liu Yang, Qingxin Chen, Quan Hao, Liang Zhang, Hongyan Sun

Journal Article

Detecting

Chengkun WANG, Xiaojian ZHANG, Jun WANG, Chao CHEN

Journal Article

A creative concept for designing and simulating quaternary logic gates in quantum-dot cellular automata

Alireza Navidi, Reza Sabbaghi-Nadooshan, Massoud Dousti,alireza.navidi@srbiau.ac.ir,r_sabbaghi@iauctb.ac.ir,m_dousti@srbiau.ac.ir

Journal Article

Research on On-line Detecting Method and Key Technologies for Part Quality (Dimension and Surface Roughness

Chen Aidi,Wang Xinyi

Journal Article

Spin polarization strategy to deploy proton resource over atomic-level metal sites for highly selective CO electrolysis

Journal Article

A perspective on the promoting effect of Ir and Au on Pd toward the ethanol oxidation reaction in alkaline

S. Y. SHEN, Y. G. GUO, G. H. WEI, L. X. LUO, F. LI, J. L. ZHANG

Journal Article