cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57760/sciencedb.04716
title: Breeding of Escherichia coli by Ion Beam Mutagenesis Combined with RQ On-line Regulation for High-Efficient Production of Polysialic Acid
title: 大肠杆菌离子束诱变结合呼吸商在线实时调控高产聚唾液酸

description: Escherichia coli ATCC13027 is a strain capable of producing polysialic acid (PSA). In order to put it into industrial application, strain mutagenesis combined with optimization of the fermentation process was used to increase the PSA yield. Firstly, low energy nitrogen ion beam injection was performed to obtain different strains with varied PSA yields and three different strains were chosen out. Then the respiration quotient (RQ) curves of the three strains were compared during the fermentation process. Finally, a strategy for feeding corn steep powder (CSP) was formulated based on the effect of pulsed feeding of CSP on the RQ. Results showed that the highest PSA titer attained was 3.94 g/L, which was increased by 36.81% as compared with that of the wild strain when the ion beam dose was set as 10 × 1014 ion/cm2. The RQ value of the strain with the highest yield was the lowest during the rapid synthesis phase of PSA. Considering that pulsed feeding of CSP had a significant effect on RQ (P &lt; 0.01), CSP was fed starting from 16 h to control RQ around 0.8 in a 50 L fermentor and as a result, PSA titer reached 12.83 g/L, which was 45.30% and 88.95% higher than that of the control and the original strain, respectively. The high PSA yield strain and the strategy of real-time online regulation for PSA production presented in this study provide theoretical support for PSA industrialization.
description: Escherichia coli ATCC13027 is a strain capable of producing polysialic acid (PSA). In order to put it into industrial application, strain mutagenesis combined with optimization of the fermentation process was used to increase the PSA yield. Firstly, low energy nitrogen ion beam injection was performed to obtain different strains with varied PSA yields and three different strains were chosen out. Then the respiration quotient (RQ) curves of the three strains were compared during the fermentation process. Finally, a strategy for feeding corn steep powder (CSP) was formulated based on the effect of pulsed feeding of CSP on the RQ. Results showed that the highest PSA titer attained was 3.94 g/L, which was increased by 36.81% as compared with that of the wild strain when the ion beam dose was set as 10 × 1014 ion/cm2. The RQ value of the strain with the highest yield was the lowest during the rapid synthesis phase of PSA. Considering that pulsed feeding of CSP had a significant effect on RQ (P &lt; 0.01), CSP was fed starting from 16 h to control RQ around 0.8 in a 50 L fermentor and as a result, PSA titer reached 12.83 g/L, which was 45.30% and 88.95% higher than that of the control and the original strain, respectively. The high PSA yield strain and the strategy of real-time online regulation for PSA production presented in this study provide theoretical support for PSA industrialization.
DOI: 10.57760/sciencedb.04719
title: Figures
title: Figures

description: The figures in this article.
description: The figures in this article.
DOI: 10.57760/sciencedb.04722
title: Breeding of Escherichia coli by Ion Beam Mutagenesis Combined with RQ On-line Regulation for High-Efficient Production of Polysialic Acid
title: Breeding of Escherichia coli by Ion Beam Mutagenesis Combined with RQ On-line Regulation for High-Efficient Production of Polysialic Acid

description: Escherichia coli ATCC13027 is a strain capable of producing polysialic acid (PSA). In order to put it into industrial application, strain mutagenesis combined with optimization of the fermentation process was used to increase the PSA yield. Firstly, low energy nitrogen ion beam injection was performed to obtain different strains with varied PSA yields and three different strains were chosen out. Then the respiration quotient (RQ) curves of the three strains were compared during the fermentation process. Finally, a strategy for feeding corn steep powder (CSP) was formulated based on the effect of pulsed feeding of CSP on the RQ. Results showed that the highest PSA titer attained was 3.94 g/L, which was increased by 36.81% as compared with that of the wild strain when the ion beam dose was set as 10 × 1014 ion/cm2. The RQ value of the strain with the highest yield was the lowest during the rapid synthesis phase of PSA. Considering that pulsed feeding of CSP had a significant effect on RQ (P &lt; 0.01), CSP was fed starting from 16 h to control RQ around 0.8 in a 50 L fermentor and as a result, PSA titer reached 12.83 g/L, which was 45.30% and 88.95% higher than that of the control and the original strain, respectively. The high PSA yield strain and the strategy of real-time online regulation for PSA production presented in this study provide theoretical support for PSA industrialization.
description: Escherichia coli ATCC13027 is a strain capable of producing polysialic acid (PSA). In order to put it into industrial application, strain mutagenesis combined with optimization of the fermentation process was used to increase the PSA yield. Firstly, low energy nitrogen ion beam injection was performed to obtain different strains with varied PSA yields and three different strains were chosen out. Then the respiration quotient (RQ) curves of the three strains were compared during the fermentation process. Finally, a strategy for feeding corn steep powder (CSP) was formulated based on the effect of pulsed feeding of CSP on the RQ. Results showed that the highest PSA titer attained was 3.94 g/L, which was increased by 36.81% as compared with that of the wild strain when the ion beam dose was set as 10 × 1014 ion/cm2. The RQ value of the strain with the highest yield was the lowest during the rapid synthesis phase of PSA. Considering that pulsed feeding of CSP had a significant effect on RQ (P &lt; 0.01), CSP was fed starting from 16 h to control RQ around 0.8 in a 50 L fermentor and as a result, PSA titer reached 12.83 g/L, which was 45.30% and 88.95% higher than that of the control and the original strain, respectively. The high PSA yield strain and the strategy of real-time online regulation for PSA production presented in this study provide theoretical support for PSA industrialization.
DOI: 10.57760/sciencedb.04726
title: Development of a quartz crystal microbalance diagnostic for measuring material erosion and deposition on the first wall in EAST
title: Development of a quartz crystal microbalance diagnostic for measuring material erosion and deposition on the first wall in EAST

description: A quartz crystal microbalance (QMB) diagnostic system has been established in Experimental Advanced Superconducting Tokamak (EAST) for real-time and in situ measurements of erosion and deposition rates of plasma-facing materials at the first wall. A ∼70 nm aluminum (Al) film has been coated on the QMB crystal surface to measure the erosion rate by charge exchange neutral particles. Dual sensors of the QMB system have been used with a closed sensor for reference. The stability and light sensitivity of the QMB system have been tested in the lab, demonstrating its feasibility on the application of EAST experiments. The QMB system with cooling water has been successfully applied in the 2018 EAST campaign. The net erosion thickness measured by the QMB has been well validated by thickness measurements using the Rutherford backscattering spectrometry. The developed QMB systems can help us to understand the physics processes of material erosion and deposition at main chamber walls for long pulse operations in EAST. 
description: A quartz crystal microbalance (QMB) diagnostic system has been established in Experimental Advanced Superconducting Tokamak (EAST) for real-time and in situ measurements of erosion and deposition rates of plasma-facing materials at the first wall. A ∼70 nm aluminum (Al) film has been coated on the QMB crystal surface to measure the erosion rate by charge exchange neutral particles. Dual sensors of the QMB system have been used with a closed sensor for reference. The stability and light sensitivity of the QMB system have been tested in the lab, demonstrating its feasibility on the application of EAST experiments. The QMB system with cooling water has been successfully applied in the 2018 EAST campaign. The net erosion thickness measured by the QMB has been well validated by thickness measurements using the Rutherford backscattering spectrometry. The developed QMB systems can help us to understand the physics processes of material erosion and deposition at main chamber walls for long pulse operations in EAST.
DOI: 10.57760/sciencedb.04733
title: Real time monitoring of material erosion and deposition for the first wall using quartz crystal microbalance in EAST
title: Real time monitoring of material erosion and deposition for the first wall using quartz crystal microbalance in EAST

description: Two new quartz crystal microbalance (QMB) systems have been installed at different locations in the mid-plane of EAST to measure erosion and deposition of the first wall materials. The two QMBs with different distances from the plasma show complex and distinct erosion and deposition behavior. The QMB in the mid-plane H port closer to the plasma shows a relatively higher net erosion result with an average erosion rate of 1.34 ng/(cm2 s). The normal discharges mainly contribute to the total net erosion and the maximum erosion amount reaches up to 110 ng/cm2 . Contrarily, a slight net deposition of 0.11 ng/(cm2 s) is obtained for the QMB in the mid-plane G port further away from the plasma and the erosion and deposition amount of most discharges are much lower due to lower particle flux. The disruptive discharges lead to a total net deposition rate of 0.48 ng/(cm2 s). Measurement results by the QMBs are demonstrated by a good agreement with the post-mortem analysis by Rutherford Backscattering Spectrometry (RBS). 
description: Two new quartz crystal microbalance (QMB) systems have been installed at different locations in the mid-plane of EAST to measure erosion and deposition of the first wall materials. The two QMBs with different distances from the plasma show complex and distinct erosion and deposition behavior. The QMB in the mid-plane H port closer to the plasma shows a relatively higher net erosion result with an average erosion rate of 1.34 ng/(cm2 s). The normal discharges mainly contribute to the total net erosion and the maximum erosion amount reaches up to 110 ng/cm2 . Contrarily, a slight net deposition of 0.11 ng/(cm2 s) is obtained for the QMB in the mid-plane G port further away from the plasma and the erosion and deposition amount of most discharges are much lower due to lower particle flux. The disruptive discharges lead to a total net deposition rate of 0.48 ng/(cm2 s). Measurement results by the QMBs are demonstrated by a good agreement with the post-mortem analysis by Rutherford Backscattering Spectrometry (RBS).
DOI: 10.57760/sciencedb.04735
title: Adaptive and Maladaptive Cognitive Emotion Regulation Strategies
title: Adaptive and Maladaptive Cognitive Emotion Regulation Strategies

description: These data have been recruited from the study conducted on university female students to evaluate the etiology of procrastination among this population.
description: These data have been recruited from the study conducted on university female students to evaluate the etiology of procrastination among this population.
DOI: 10.57760/sciencedb.04738
title: Fixed-time trajectory tracking control for robotic manipulators with disturbances and input saturation constraints
title: Fixed-time trajectory tracking control for robotic manipulators with disturbances and input saturation constraints

description: All data supporting the results of this study. Includes a sliding mode surface comparison program, a fixed time extended state observer compared with a finite extended state observer, and a position velocity and error tracking program.
description: All data supporting the results of this study. Includes a sliding mode surface comparison program, a fixed time extended state observer compared with a finite extended state observer, and a position velocity and error tracking program.
DOI: 10.57760/sciencedb.04739
title: A detection method applied in narrow bandwidth inter-harmonics of tokamak power supply dataset
title: 托卡马克电源窄带宽近基频间谐波检测方法数据集

description: Code dataset of narrow-bandwidth near fundamental interfrequency harmonic detection method for low-frequency harmonic detection in Tokamak magnet power system
description: Code dataset of narrow-bandwidth near fundamental interfrequency harmonic detection method for low-frequency harmonic detection in Tokamak magnet power system
DOI: 10.57760/sciencedb.04748
title: Phytoplankton photosynthetic rate measurement using tunable pulsed light induced fluorescence kinetics
title: 基于可变光脉冲诱导荧光动力学的浮游植物光合速率测量方法研究

description: The photosynthetic process of phytoplankton is the basis of the material circulation and energy flow of the ecosystem. The rapid and accurate measurement of phytoplankton photosynthesis rate is of great significance to water ecological environment monitoring, marine resource assessment and global climate change prediction. On the basis of “Bio-Optical” model, a photosynthetic rate measurement method based on tunable pulsed light induced fluorescence kinetics was put forward in this paper. The chlorophyll fluorescence was used as the probe of photosynthesis process, and the phytoplankton photosynthetic rate was evaluated by the photosynthetic electron transport rate. Comparative experiment results showed that the photosynthetic electron transport rate measured by fluorescence kinetic method under different conditions of DCMU, culture light and nutrients (nitrogen) were consistent with the photosynthetic oxygen evolution rate measured by oxygen evolution method, and the correlation coefficient R2 were 0.934, 0.957 and 0.955 respectively.
description: The photosynthetic process of phytoplankton is the basis of the material circulation and energy flow of the ecosystem. The rapid and accurate measurement of phytoplankton photosynthesis rate is of great significance to water ecological environment monitoring, marine resource assessment and global climate change prediction. On the basis of “Bio-Optical” model, a photosynthetic rate measurement method based on tunable pulsed light induced fluorescence kinetics was put forward in this paper. The chlorophyll fluorescence was used as the probe of photosynthesis process, and the phytoplankton photosynthetic rate was evaluated by the photosynthetic electron transport rate. Comparative experiment results showed that the photosynthetic electron transport rate measured by fluorescence kinetic method under different conditions of DCMU, culture light and nutrients (nitrogen) were consistent with the photosynthetic oxygen evolution rate measured by oxygen evolution method, and the correlation coefficient R2 were 0.934, 0.957 and 0.955 respectively.
DOI: 10.57760/sciencedb.04741
title: A novel phase-locked loop applied on frequency fluctuation of EAST power supply dataset
title: A novel phase-locked loop applied on frequency fluctuation of EAST power supply dataset

description: The code dataset of a novel composite algorithm of LPF and ANF SRF-PLL (LASRF-PLL)
description: The code dataset of a novel composite algorithm of LPF and ANF SRF-PLL (LASRF-PLL)
DOI: 10.57760/sciencedb.04744
title: The influential factors towards graphene oxides removal by activated carbons: Activated functional groups vs BET surface area-dataset
title: The influential factors towards graphene oxides removal by activated carbons: Activated functional groups vs BET surface area-原始数据

description: Two commercially available different activated carbons (ACs) were used as adsorbents for GO and methyl orange (MO, as a control) elimination. AC1 possesses more oxygen-containing functional groups, while AC2 has much larger Brunauer–Emmett–Teller (BET) surface area. The external factors towards GO removal by ACs were systematically investigated via batch experiments, including the contact time, ionic types and concentration, pH value, temperature. AC1 exhibited a ~4 times higher removal GO efficiency than that of AC2 while AC2 adsorbed ~55 times of MO than AC1.
description: Two commercially available different activated carbons (ACs) were used as adsorbents for GO and methyl orange (MO, as a control) elimination. AC1 possesses more oxygen-containing functional groups, while AC2 has much larger Brunauer–Emmett–Teller (BET) surface area. The external factors towards GO removal by ACs were systematically investigated via batch experiments, including the contact time, ionic types and concentration, pH value, temperature. AC1 exhibited a ~4 times higher removal GO efficiency than that of AC2 while AC2 adsorbed ~55 times of MO than AC1.
DOI: 10.57760/sciencedb.04750
title: Insight into the mechanism of adsorption of phenol and resorcinol on activated carbons with different oxidation degrees-dataset
title: Insight into the mechanism of adsorption of phenol and resorcinol on activated carbons with different oxidation degrees-原始数据

description: The kinetics and isotherms at different temperatures were carried out to evaluate the adsorption rate and thermodynamics. Batch experiment results showed that the removal of phenol and resorcinol by ACs was affected by adsorbent content, contact time, pH, poly (acrylic acid), and temperature. The AC adsorption capacity towards phenol and resorcinol decreased with increasing AC oxidation degree and the adsorption capacity of ACs towards resorcinol was greater than phenol.
description: The kinetics and isotherms at different temperatures were carried out to evaluate the adsorption rate and thermodynamics. Batch experiment results showed that the removal of phenol and resorcinol by ACs was affected by adsorbent content, contact time, pH, poly (acrylic acid), and temperature. The AC adsorption capacity towards phenol and resorcinol decreased with increasing AC oxidation degree and the adsorption capacity of ACs towards resorcinol was greater than phenol.
DOI: 10.57760/sciencedb.04753
title: Adsorption of U(VI) on nonthermal plasma-modified carbon nanotubes-dataset
title: 低温等离子体改性碳纳米管及其对U(VI)的吸附性能研究-原始数据

description: The surface of multi walled carbon nanotubes (MWCNTs) was grafted with O-PEA by low-temperature plasma method. The physicochemical properties of MWCNTs before and after modification were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and Raman spectroscopy The adsorption capacity of modified carbon nanotubes for U (VI) in solution was studied by static adsorption experiment, and the effects of adsorption time, pH, ionic strength and temperature on the adsorption performance were also studied.
description: The surface of multi walled carbon nanotubes (MWCNTs) was grafted with O-PEA by low-temperature plasma method. The physicochemical properties of MWCNTs before and after modification were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and Raman spectroscopy The adsorption capacity of modified carbon nanotubes for U (VI) in solution was studied by static adsorption experiment, and the effects of adsorption time, pH, ionic strength and temperature on the adsorption performance were also studied.
DOI: 10.57760/sciencedb.04755
title: Amidoxime-Functionalized Hollow Carbon Spheres for Efficient Removal of Uranium from Wastewater-dataset
title: Amidoxime-Functionalized Hollow Carbon Spheres for Efficient Removal of Uranium from Wastewater-原始数据

description: Amidoxime-functionalized hollow carbon spheres (C-HCN-AO) were synthesized via amidation cyano-rich hydrothermal carbon (C-HCN) treatment with hydroxylamine hydrochloride. NaOH solution was used to etch SiO2 to achieve hollow structure. The sorption of U(VI) was studied, and the related figures were provided.
description: Amidoxime-functionalized hollow carbon spheres (C-HCN-AO) were synthesized via amidation cyano-rich hydrothermal carbon (C-HCN) treatment with hydroxylamine hydrochloride. NaOH solution was used to etch SiO2 to achieve hollow structure. The sorption of U(VI) was studied, and the related figures were provided.
DOI: 10.57760/sciencedb.04758
title: Insight into the impact of interaction between attapulgite and graphene oxide on the adsorption of U(VI)-dataset
title: Insight into the impact of interaction between attapulgite and graphene oxide on the adsorption of U(VI)-原始数据

description: Attapulgite (APT) as a typical fibrillar mineral was chosen to investigate the impact of interaction between APT and GO on the adsorption of U(VI). The adsorption capacity indicated that adsorption capacity was related with interaction between APT and GO. Then systematical investigation on U(VI) adsorption at various environment factors (time, pH, and ionic strength) were employed on single adsorbent and heterogeneous aggregate. The related figures are plotted.
description: Attapulgite (APT) as a typical fibrillar mineral was chosen to investigate the impact of interaction between APT and GO on the adsorption of U(VI). The adsorption capacity indicated that adsorption capacity was related with interaction between APT and GO. Then systematical investigation on U(VI) adsorption at various environment factors (time, pH, and ionic strength) were employed on single adsorbent and heterogeneous aggregate. The related figures are plotted.
DOI: 10.57760/sciencedb.04760
title: Adsorption and desorption of U(VI) on different-size graphene oxide-dataset
title: Adsorption and desorption of U(VI) on different-size graphene oxide-原始数据

description: The surface chemistry and morphology of LGO and SGO were characterized by spectroscopic and microscopic techniques. Batch experiment was conducted to study the adsorption and desorption of U(VI) on GO as affected by size at different environment conditions (pH, coexisting ions, HA and temperature). The related figures are plotted.
description: The surface chemistry and morphology of LGO and SGO were characterized by spectroscopic and microscopic techniques. Batch experiment was conducted to study the adsorption and desorption of U(VI) on GO as affected by size at different environment conditions (pH, coexisting ions, HA and temperature). The related figures are plotted.
DOI: 10.57760/sciencedb.04765
title: data and figure files for [Zhai, X. M., et al. 2019. "Theoretical analysis of key factors achieving reversed magnetic shear q-profiles sustained with lower hybrid waves on EAST." Plasma Physics and Controlled Fusion]
title: 原始数据与图片数据（论文：Zhai, X. M., et al. 2019. "Theoretical analysis of key factors achieving reversed magnetic shear q-profiles sustained with lower hybrid waves on EAST." Plasma Physics and Controlled Fusion ）

description: This dataset includes data and figure files used in the paper [Zhai, X. M., et al. (2019). "Theoretical analysis of key factors achieving reversed magnetic shear q-profiles sustained with lower hybrid waves on EAST." Plasma Physics and Controlled Fusion 61(4): 045002.].Simulation programs for the data are GENRAY+CQL3D.
description: This dataset includes data and figure files used in the paper [Zhai, X. M., et al. (2019). "Theoretical analysis of key factors achieving reversed magnetic shear q-profiles sustained with lower hybrid waves on EAST." Plasma Physics and Controlled Fusion 61(4): 045002.].Simulation programs for the data are GENRAY+CQL3D.