Search results for: Kun Ma

Items from 1 to 20 out of 252 results

article

AML cell‐derived exosomes suppress the activation and cytotoxicity of NK cells in AML via PD‐1/PD‐L1 pathway

Dandan Wang, Fanchen Zhou, Leiyu He, Xiaohong Wang, more

Cell Biology International > 48 > 10 > 1588 - 1598

Exosomes are bilayer lipid bodies and contain a variety of bioactive molecules such as proteins, lipids, and nucleic acids, and so forth. Exosomes derived from solid tumors may play critical roles in tumor development and immune evasion. However, the underlying effects of tumor‐derived exosomes on immune function in modulating intercellular crosstalk within the bone marrow niche during acute myeloid...

article

Hierarchical‐Bioinspired MOFs Enhanced Electromagnetic Wave Absorption

Sajid ur Rehman, Shuai Xu, Zehua Li, Tongxiang Tao, more

Small > 20 > 6 > n/a - n/a

Proteins exhibit complex and diverse multi‐dimensional structures, along with a wide range of functional groups capable of binding metal ions. By harnessing the unique characteristics of proteins, it is possible to enhance the synthesis of metal‐organic frameworks (MOFs) and modify their morphology. Here, the utilization of biomineralized bovine serum albumin (BSA) protein as a template for synthesizing...

article

TM‐HOL: Topic memory model for detection of hate speech and offensive language

Jing Chen, Kun Ma, Ke Ji, Zhenxiang Chen

Concurrency and Computation: Practice and Experience > 35 > 14 > n/a - n/a

In the era of the explosion of digital content of large‐scale self‐media, user‐friendly social platforms such as Twitter and Facebook, provide opportunities for people to express their ideas and opinions freely. Due to lack of restrictions, hateful speech and its exposure can have profound psychological impacts on society. Current social networking platform is over‐reliant on the manual check, and...

article

Gram‐Scale Synthesis of Chain‐Deuterated Sphingosine and Its Derivatization to Produce Ceramide, Sphinganine and Sphingosine‐1‐phosphate

Yonghang Mu, Zi Wang, Linhua Song, Kun Ma, more

European Journal of Organic Chemistry > 26 > 20 > n/a - n/a

Sphingosine plays crucial roles in various cellular functions. Deuterated molecules are widely used as the important tools to explore the structure, property, and function of biochemical materials. We here report a gram‐scale synthesis of sphingosines with different deuterated chains. The synthesis started from different protiated fatty acids, which underwent hydrothermal platinum‐catalyzed hydrogen/deuterium...

article

A near‐infrared CO₂ detection system for greenhouse gas based on PCA‐DNN

Guolin Li, Jiarui Li, Yajing Liu, Yimeng Song, more

Microwave and Optical Technology Letters > 65 > 5 > 1468 - 1474

Carbon dioxide (CO₂) gas is one of the main greenhouse gases. The detection of CO₂ gas content is of great significance to the study of the greenhouse effect. The CO₂ detection system based on the principle of tunable diode laser absorption spectroscopy (TDLAS) was demonstrated. A distributed feedback (DFB) laser with a central wavelength of 1580 nm was used as the laser source, multipass gas cell...

article

A near‐infrared trace hydrogen sulfide sensor based on CEEMDAN and PSO‐LSSVM

Guolin Li, Kun Ma, Yue Jiao, Xuena Zhang, more

Microwave and Optical Technology Letters > 65 > 5 > 1047 - 1053

A distribution feedback laser sensor for high precision and high sensitivity detection of the hydrogen sulfide in associated gas from oil fields is developed in this paper. Tunable diode laser absorption spectroscopy and wavelength modulation spectroscopy and were utilized for the H₂S concentration detection in the oilfield. Complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN)...

article

P‐3.2: Research on the Structure and Optical Performance of Reflective Liquid Crystal Display

Kun Ma, Rong Ma, Rui He, Wei Cheng, more

SID Symposium Digest of Technical Papers > 53 > S1 > 675 - 677

In this article, we designed two different Reflective liquid‐crystal displays (RLCD) structures using PDLC with high haze and high transparency, and discussed the influence of dye of liquid crystal and reflective particles in different structures on the display effect. Dye liquid crystals have a bright future in reflective display, but the influence of dye concentration on color gamut still needs...

article

Effects of Added Humic Substances and Nutrients on Photochemical Degradation of Dissolved Organic Matter in a Mesocosm Amendment Experiment in the Gulf of Finland, Baltic Sea

Kun Ma, Leanne C. Powers, Jukka Seppälä, Joanna Norkko, more

Photochemistry and Photobiology > 98 > 5 > 1025 - 1042

Humic substances, a component of terrestrial dissolved organic matter (tDOM), contribute to dissolved organic matter (DOM) and chromophoric DOM (CDOM) in coastal waters, and have significant impacts on biogeochemistry. There are concerns in recent years over browning effects in surface waters due to increasing tDOM inputs, and their negative impacts on aquatic ecosystems, but relatively little work...

article

P‐111: Research on the Structure and Optical Performance of Reflective Liquid Crystal Display

Kun Ma, Rong Ma, Rui He, Wei Cheng, more

SID Symposium Digest of Technical Papers > 53 > 1 > 1439 - 1441

article

A thermomechanical constitutive model for investigating the fatigue behavior of Sn‐rich solder under thermal cycle loading

Zhao Zhang, Sheng Liu, Kun Ma, Tielin Shi, more

Fatigue & Fracture of Engineering Materials & Structures > 45 > 7 > 1953 - 1968

Based on crystal plastic theory, a novel thermomechanical constitutive model was proposed for Sn‐rich solder. Material parameters of the proposed constitutive model were determined by fitting the stress–strain curves under uniaxial tensile testings. Combined with the proposed model and the material parameters, crystal plastic finite element method was used to investigate the effects of the microstructure...

article

Cysteine‐enhanced ultrasound degradation of patulin in acidic solution simulated pH of apple juice

Kun Ma, Hui Zhang, Enjie Diao, Shiquan Qian, more

Journal of Food Processing and Preservation > 46 > 5 > n/a - n/a

Ultrasound was used to degrade patulin in pH 3.5 of solution containing cysteine, and investigated the cysteine‐enhanced effects on ultrasound degradation of patulin. The results showed that ultrasound alone did not efficiently degrade patulin (reduced by 4.96%–8.90%) without adding cysteine, and their synergistic roles were more favorable for patulin degradation (reduced by 17.82%–60.98%). The molar...

article

Regenerating islet‐derived protein 3 gamma (Reg3g) ameliorates tacrolimus‐induced pancreatic β‐cell dysfunction in mice by restoring mitochondrial function

Senlin Li, Hong Zhou, Mengyuan Xie, Zijun Zhang, more

British Journal of Pharmacology > 179 > 12 > 3078 - 3095

Background and Purpose Tacrolimus a first‐line medication used after transplantation can induce β‐cell dysfunction, causing new‐onset diabetes mellitus (NODM). Regenerating islet‐derived protein 3 gamma (Reg3g), a member of the pancreatic regenerative gene family, has been reported to improve type 1 diabetes by promoting β‐cell regeneration. We aim to investigate the role of Reg3g in reversing tacrolimus‐induced...

article

Development of various methods to the investigation of the spectral properties and collision dynamics of H‐like ions taking place in dense and hot plasma environments

Zhan‐Bin Chen, Peng‐Fei Liu, Hua‐Yang Sun, Yue‐Ying Qi, more

International Journal of Quantum Chemistry > 122 > 4 > n/a - n/a

The correct understanding of the behavior of highly stripped ions immersed in a dense plasma environment is a hitherto challenge for theory and it is of importance in various applications. Here, we developed four kinds of novel theoretical models to the determination of the spectral properties and collision dynamics of H‐like ions in dense and hot plasmas by employing the analytical potential [Li...

article

OsEDM2L mediates m⁶A of EAT1 transcript for proper alternative splicing and polyadenylation regulating rice tapetal degradation

Kun Ma, Jingluan Han, Zixu Zhang, Heying Li, more

Journal of Integrative Plant Biology > 63 > 11 > 1982 - 1994

N⁶‐methyladenosine (m⁶A) modification affects the post‐transcriptional regulation of eukaryotic gene expression, but the underlying mechanisms and their effects in plants remain largely unknown. Here, we report that the N⁶‐adenine methyltransferase‐like domain‐containing protein ENHANCED DOWNY MILDEW 2‐LIKE (OsEDM2L) is essential for rice (Oryza sativa L.) anther development. The osedm2l knockout...

article

Supramolecular Pins with Ultralong Efficient Phosphorescence

Xin‐Kun Ma, Wei Zhang, Zhixue Liu, Haoyang Zhang, more

Advanced Materials > 33 > 14 > n/a - n/a

Constructing ultralong organic phosphorescent materials possessing a high quantum yield is challenging. Herein, assemblies of purely organic supramolecular pins composed of alkyl‐bridged phenylpyridinium salts and cucurbit[8]uril (CB[8]) are reported. Different from “one host with two guests” and “head‐to‐tail” binding, the binding formation of supramolecular pins is “one host with one guest” and...

article

Performance enhancement of DFBL based near‐infrared CH₄ telemetry system using a focus tunable lens

Guolin Li, Kun Ma, Yue Jiao, Qingzhi Jiang, more

Microwave and Optical Technology Letters > 63 > 4 > 1147 - 1151

A methane telemetry system for 1653 nm DFB laser based on TDLAS‐WMS technology is developed in this article. The focus tunable lens is used as the collimating system of the telemetry device to solve the problem that the telemetry device cannot be dynamically adjusted under different detection environments. Experimental results show that the root mean square error was 7.6205 and the theoretical limit...

article

Effects of dexamethasone and gamma globulin combined with prednisone on the therapeutic effect and immune function of Henoch‐Schonlein purpura nephritis in children

Lei Chen, Xinning Wang, Liang Yin, Kun Ma, more

Journal of Clinical Laboratory Analysis > 35 > 1 > n/a - n/a

Background Henoch‐Schonlein purpura nephritis (HSPN) is a serious complication of Henoch‐Schonlein purpura (HSP), which is usually treated with immunosuppressant and glucocorticoid. This study was designed to explore the effect of dexamethasone and gamma globulin combined with prednisone in the treatment of pediatric HSPN. Methods According to the treatment plan, 60 children treated with dexamethasone...

article

P‐163: The Optimization of Various Range Voltage in OLED According to Energy Level And Mobility Respectively

Lei Chen, Congcong Jia, Zhengyin Xu, Xiaojin Zhang, more

SID Symposium Digest of Technical Papers > 51 > 1 > 2125 - 2128

In order to well understand the detailed influence factors of the voltage in OLED, we studied the various voltage range in device with different interface energy gap and different material mobility by using current‐ voltage‐ luminance (IVL), impedance spectroscopy (IS) and current‐capacitance(CV). The result shows conversion voltage from ohmic current to trap current(below2V) and the carrier recombination...

article

RSCVC: Row‐based semantic cache with incremental versioning consistency

Zhe Yang, Kun Ma, Xiaoli Zhang, Lizhen Cui, more

Concurrency and Computation: Practice and Experience > 32 > 17 > n/a - n/a

In the mobile computing environment, how to make the data access more efficient is a challenge due to the narrow communication bandwidth, the frequent disconnections of network, and the limited resources. Therefore, it is necessary to cache data on the client side. Besides, a good cache consistency method is essential to ensure the correctness. In this article, a row‐based semantic cache with incremental...

article

Structure and ecological function of the soil microbiome affecting plant–soil feedbacks in the presence of a soil‐borne pathogen

S. Emilia Hannula, Hai‐kun Ma, Juan E. Pérez‐Jaramillo, Ana Pineda, more

Environmental Microbiology > 22 > 2 > 660 - 676

Interactions between plants and soil microbes are important for plant growth and resistance. Through plant–soil‐feedbacks, growth of a plant is influenced by the previous plant that was growing in the same soil. We performed a plant–soil feedback study with 37 grass, forb and legume species, to condition the soil and then tested the effects of plant‐induced changes in soil microbiomes on the growth...

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INFONA - science communication portal

Search results for: Kun Ma

AML cell‐derived exosomes suppress the activation and cytotoxicity of NK cells in AML via PD‐1/PD‐L1 pathway

Hierarchical‐Bioinspired MOFs Enhanced Electromagnetic Wave Absorption

TM‐HOL: Topic memory model for detection of hate speech and offensive language

Gram‐Scale Synthesis of Chain‐Deuterated Sphingosine and Its Derivatization to Produce Ceramide, Sphinganine and Sphingosine‐1‐phosphate

A near‐infrared CO₂ detection system for greenhouse gas based on PCA‐DNN

A near‐infrared trace hydrogen sulfide sensor based on CEEMDAN and PSO‐LSSVM

P‐3.2: Research on the Structure and Optical Performance of Reflective Liquid Crystal Display

Effects of Added Humic Substances and Nutrients on Photochemical Degradation of Dissolved Organic Matter in a Mesocosm Amendment Experiment in the Gulf of Finland, Baltic Sea

P‐111: Research on the Structure and Optical Performance of Reflective Liquid Crystal Display

A thermomechanical constitutive model for investigating the fatigue behavior of Sn‐rich solder under thermal cycle loading

Cysteine‐enhanced ultrasound degradation of patulin in acidic solution simulated pH of apple juice

Regenerating islet‐derived protein 3 gamma (Reg3g) ameliorates tacrolimus‐induced pancreatic β‐cell dysfunction in mice by restoring mitochondrial function

Development of various methods to the investigation of the spectral properties and collision dynamics of H‐like ions taking place in dense and hot plasma environments

OsEDM2L mediates m⁶A of EAT1 transcript for proper alternative splicing and polyadenylation regulating rice tapetal degradation

Supramolecular Pins with Ultralong Efficient Phosphorescence

Performance enhancement of DFBL based near‐infrared CH₄ telemetry system using a focus tunable lens

Effects of dexamethasone and gamma globulin combined with prednisone on the therapeutic effect and immune function of Henoch‐Schonlein purpura nephritis in children

P‐163: The Optimization of Various Range Voltage in OLED According to Energy Level And Mobility Respectively

RSCVC: Row‐based semantic cache with incremental versioning consistency

Structure and ecological function of the soil microbiome affecting plant–soil feedbacks in the presence of a soil‐borne pathogen

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