Practicability of TTI application to yogurt quality prediction in plausible scenarios of a distribution system with temperature variations

Jing Jing Meng,Jing Qian,정승원,이승주 한국식품과학회 2018 Food Science and Biotechnology Vol.27 No.5

Yogurt has high temperature sensitivity, resulting in the temperature variations from production to consumption. Cooling capacity of cold chain facilities and product storage height are regarded as factors contributing to temperature variations in this study. To find an effective method to monitor temperature history of every yogurt product, three measurements were used: the set point of a cold chamber, a data logger, and a time–temperature integrator (TTI). The mean measured yogurt quality factor (acidity, T) of 30 samples was 92.1 T, and predicted values were 91.8 T from the set point, 93.3 T from the data logger, and 92.4 T from the TTI. In terms of individual prediction, the SSE of the TTI showed the smallest difference (5.76) followed by 81.5 of the set point and 118.9 of the data logger. Thus, the TTI showed the best performance and can be used to monitor the time–temperature history of yogurt in the cold chain system.

Turbulence-tolerant Manchester On-off Keying Transmission for Free-space Optical Communication

Qian-Wen Jing,Pei-Zheng Yu,Han-Lin Lv,Yanqing Hong 한국광학회 2023 Current Optics and Photonics Vol.7 No.4

We propose a turbulence-tolerant Manchester on-off keying (M-OOK) transmission for free-space optical (FSO) communication. At the transmitter end, a M-OOK signal featuring a spectrum with lowfrequency components absent is modulated and transmitted into a turbulent channel. At the receiver end, a low-pass filter (LPF) -based adaptive-threshold decision (ATD) with LPF-extracted channelstate information (CSI) and a high-pass filter (HPF)-based fixed-threshold decision (FTD) are employed to compensate for the effects of turbulence, owing to the low-frequency spectral characteristics of the turbulent channel. The performance of LPF-based ATD and HPF-based FTD are evaluated for various cutoff frequencies for the LPF and HPF. Besides, the proposed M-OOK transmission is compared to conventional non-return-to-zero OOK (NRZ-OOK) for different data rates. The proposed technique is verified in simulation. The simulation results show that the proposed M-OOK detection with optimized cutoff frequencies of LPF and HPF has better bit-error-rate (BER) performance compared to NRZOOK, and it is close to the theoretical ATD with the knowledge of precise CSI under various degrees of turbulence effects.

Single Logarithmic Amplification and Deep Learning-based Fixed-threshold On-off Keying Detection for Free-space Optical Communication

Qian-Wen Jing,Yanqing Hong 한국광학회 2024 Current Optics and Photonics Vol.8 No.3

This paper proposes single logarithmic amplification (single-LA) and deep learning (DL)-based fixed-threshold on-off keying (OOK) detection for free-space optical (FSO) communication. Multilevel LAs (MLAs) can be used to mitigate intensity fluctuations in the received OOK signal by their nonlinear gain characteristics; however, it is ineffective in the case of high scintillation, owing to degradation of the OOK signal’s extinction ratio. Therefore, a DL technique is applied to realize effective scintillation compensation in single-LA applications. Fully connected (FC) networks and fully connected neural networks (FCNN), which have nonlinear modeling characteristics, are deployed in this work. The performance of the proposed method is evaluated through simulations under various scintillation effects. Simulation results show that the proposed method outperforms the conventional adaptive-thresholddecision, single-LA-based, MLA-based, FC-based, and FCNN-based OOK detection techniques.

SELDI-TOF MS Combined with Magnetic Beads for Detecting Serum Protein Biomarkers and Establishment of a Boosting Decision Tree Model for Diagnosis of Pancreatic Cancer

Qian, Jing-Yi,Mou, Si-Hua,Liu, Chi-Bo Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.5

Aim: New technologies for the early detection of pancreatic cancer (PC) are urgently needed. The aim of the present study was to screen for the potential protein biomarkers in serum using proteomic fingerprint technology. Methods: Magnetic beads combined with surface-enhanced laser desorption/ionization (SELDI) TOF MS were used to profile and compare the protein spectra of serum samples from 85 patients with pancreatic cancer, 50 patients with acute-on-chronic pancreatitis and 98 healthy blood donors. Proteomic patterns associated with pancreatic cancer were identified with Biomarker Patterns Software. Results: A total of 37 differential m/z peaks were identified that were related to PC (P < 0.01). A tree model of biomarkers was constructed with the software based on the three biomarkers (7762 Da, 8560 Da, 11654 Da), this showing excellent separation between pancreatic cancer and non-cancer., with a sensitivity of 93.3% and a specificity of 95.6%. Blind test data showed a sensitivity of 88% and a specificity of 91.4%. Conclusions: The results suggested that serum biomarkers for pancreatic cancer can be detected using SELDI-TOF-MS combined with magnetic beads. Application of combined biomarkers may provide a powerful and reliable diagnostic method for pancreatic cancer with a high sensitivity and specificity.

First Exploration of Printable Time-Temperature Indicator Based on Microcapsule

Jing Qian 한국산업식품공학회 2016 학술대회 및 심포지엄 Vol.2016 No.10

With the development of marketing, time-temperature indicator (TTI) is applied to monitor the storage temperature and time to predict the shelf-life of food by irreversible color change. This study mainly focused on developing the solid-type enzymatic time temperature indicator as a first exploration on printable TTI. It was based on the phenomenon that starch would change its color into blue when meets iodine, and the hydrolysis of enzyme make the color turn to colorless gradually. Combining the microencapsulation technology to immobilize enzyme, several TTIs with different formulas were achieved, and hopefully to be applied on different foods, whose storage temperature is 4 and their shelf-life could be 5-6 days. Chilled pork meat was chosen as an indicating target to figure out a suitable specific TTI by activation energy comparing and lasting time matching.

Single Logarithmic Amplification and Deep Learning-based Fixed-threshold On-off Keying Detection for Free-space Optical Communication

Qian-Wen Jing,Yan-Qing Hong 한국광학회 2024 Current Optics and Photonics Vol.8 No.3

Incidence and risk factors for venous thrombosis among patients with inflammatory bowel disease in China: a multicenter retrospective study

( Jing Liu ),( Xiang Gao ),( Ye Chen ),( Qiao Mei ),( Liangru Zhu ),( Jiaming Qian ),( Pinjin Hu ),( Qian Cao ) 대한장연구학회 2021 Intestinal Research Vol.19 No.3

Background/Aims: Risk of venous thrombosis is increased in patients with inflammatory bowel disease (IBD); data on Asian IBD patients is limited and status quo of thrombosis screening and prophylaxis are unknown. Therefore, we aimed to investigate the incidence, screening, prophylaxis, and risk factors for venous thrombosis among Asian IBD patients. Methods: Medical files of patients with Crohn’s disease (CD) and ulcerative colitis (UC) from 17 hospitals across China between 2011 and 2016 were reviewed for venous thrombosis, use of screening and prophylaxis. A case-control study was performed among hospitalized patients with venous thrombosis and their age-, sex-matched IBD controls hospitalized around the same period; disease characteristics and known provoking factors of venous thrombosis were recorded. Risk factors were analyzed in both univariate and logistic regression analyses. Results: A total of 8,459 IBD patients were followed for 12,373 person-year. Forty-six patients (0.54%) had venous thrombosis, yielding an incidence of 37.18 per 10,000 person-year. Incidence increased with age, especially among CD. Less than 20% of patients received screening tests and 35 patients (0.41%) received prophylaxis. Severe disease flare was an independent risk factor for venous thrombosis (odds ratio [95% confidence interval]: CD, 9.342 [1.813-48.137]; UC, 5.198 [1.268-21.305]); past use of steroids and extensive involvement were 2 additional risk factors in CD and UC, respectively. Conclusions: Incidence of venous thrombosis in China was 37.18 per 10,000 person-year (0.54%). Use of screening and prophylaxis were rare. Severe disease flare was an independent risk factor for thrombosis among hospitalized patients. (Intest Res 2021;19:313-322)

First Exploration of Printable Time-Temperature Indicator Based on Microcapsule

Jing Qian 한국산업식품공학회 2016 식품과 기계 Vol.13 No.1

基于女性视角的南宋界画中庭园造景手法研究以南宋扇面画 『万花春睡图』 与 『仙馆秾花图』 为例

( Qian Jing ),김원경 ( Kim Won Kyung ) 한국동양예술학회 2024 동양예술 Vol.64 No.-

중국의 정원(원림)은 전통적인 주거 형태의 독특한 경관 미학을 표현하며 발전하였다. 정원 조경은 건축, 식물학 등 과학적이고 전문적인 지식을 필요로 하게 되는 한편 주 향유자인 문인과 화가들도 설계와 건설에 참여하여 그들의 심미 취향을 반영하게 되면서 고급한 상층문화를 대표하게 되었다. 특히 남송 시대에 이르러서 중국 정원 건축은 전성기를 누렸을 뿐만 아니라 정원을 소재로 한 계화도 황금기를 맞이하였다. 정원 조경과 계화는 서로간의 예술적 장르가 다르지만 시각적 아름다움을 추구하는 이질적 동형성을 지니고 있어 이 둘은 서로 밀접한 관계를 맺으면서 발전하였다. 본 논문은 남송(南宋) 시대의 두 폭의 부채 그림 『만화춘수도(万花春睡图)』와 『선관농화도(仙倌侬花图)』를 연구 대상으로 하여 정원 조경을 분석하였다. 문헌 연구와 이미지 분석을 통해 『만화춘수도』와 『선관농화도』속에 표현된 정원의 경관 배치와 전통 조경 기법을 건축물의 배치, 바위와 연못의 배치, 산책로, 식물과 꽃 등의 조경 요소를 자세히 분석하고 비교하여 계화와 정원 조경 기법 사이의 예술적 전환을 설명하였다. 이 두 작품은 여성들이 저택에 조성된 정원에서 청한지락(清闲之乐)과 관물지락(观物之乐)의 삶을 향유하는 것을 표현하고 있어서, 당시 여성들의 일상생활을 깊이 있게 들여다 보고 정원 조경 디자인에 그 일상 활동을 배려하여 조경 요소를 배치하고 있는 것을 알 수 있다. 화가가 이런 조경 설계자들의 의도를 정확히 알고 정원을 배경으로 한 여성의 일상생활의 한 단면을 『만화춘수도』와 『선관농화도』에 표현하고 있으며 그림 속 조경의 내용과 형식에 섬세하고 세련된 여성 중심적인 영향을 충분히 반영하고 있다. 당시 계화에 나타난 여성의 정원 속 일상활동을 연결하여 연구함으로써 정원의 용도와 조경 기법의 밀접한 관계를 조명하고 남송시대 정원 조경 예술의 발전과 특성의 한 단면을 규명하였다. This paper examines garden landscaping in the Southern Song dynasty through the analysis of two fan paintings, “Spring Slumber Among a Myriad of Flowers” and “Blooming Flowers in an Immortal's Pavilion”. Traditional Chinese garden aesthetics, a reflection of sophisticated upper- class culture, evolved through the convergence of scientific and professional knowledge in architecture and botany, as well as the aesthetic preferences of literati and painters who participated in the design and construction process. As a result, these gardens became representative of refined high culture. During the Southern Song period, Chinese garden architecture not only reached its peak but also coincided with the golden age of garden painting. Although garden landscaping and garden painting are distinct artistic genres, they share a heterogeneous isomorphism in their pursuit of visual beauty, developing in close relation to each other. Through literature review and image analysis, this study thoroughly examines and compares the garden layouts and traditional landscaping techniques depicted in “Spring Slumber Among a Myriad of Flowers” and “Blooming Flowers in an Immortal's Pavilion”. The analysis focuses on the arrangement of architectural structures, rocks, and ponds, as well as pathways, plants, and flowers, to explain the artistic transition between garden painting and garden landscaping techniques.Both paintings depict women enjoying the pleasures of leisure (清闲之乐) and observation of nature (观物之乐) within the gardens of their residences. These works offer deep insight into the daily lives of women at the time, revealing that garden design carefully incorporated elements that catered to their everyday activities. The painters, fully aware of the intentions of garden designers, vividly capture a slice of women’s daily life against the backdrop of a garden in “Spring Slumber Among a Myriad of Flowers” and “Blooming Flowers in an Immortal's Pavilion”. These paintings subtly and elegantly reflect the influence of female-centric perspectives on the content and form of the garden landscapes depicted. By connecting the depiction of women's daily activities in the garden with garden painting, this study highlights the close relationship between the purpose of the garden and landscaping techniques. It sheds light on a particular aspect of the development and characteristics of garden art in the Southern Song dynasty.

Association Between C1019T Polymorphism in the Connexin 37 Gene and Helicobacter Pylori Infection in Patients with Gastric Cancer

Jing, Yuan-Ming,Guo, Su-Xia,Zhang, Xiao-Ping,Sun, Ai-Jing,Tao, Feng,Qian, Hai-Xin Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.5

Objective: To investigate the association between the connexin 37 C1019T polymorphism and Helicobacter pylori infection in patients with gastric cancer. Methods: 388 patients with gastric cancer (GC), 204 with chronic superficial gastritis (CSG) were studied. H. pylori was detected by gastric mucosal biopsies biopsy dyeing method. Connexin 37 gene polymorphism 1019 site genotypes were determined by gene sequencing technology. Genotypes and alleles frequencies were compared. Results: (1) Connexin37 gene 1019 site distribution frequency (CC type, TC type, TT type) in the CSG group was 18.1%, 45.1% and 36.8%; in the stomach cancer group it was 35.1%, 45.9% and 19.%, conforming to the Hardy-Weinberg euilibrium. (2) In comparison with CSG group, the frequency of Connexin37 C allele was higher in the gastric cancer group (58.0% vs 40.7%, OR = 2.01, 95%CI = 1.58-2.57, P < 0.01). The prevalence of gastric cancer risk was significantly increased in the carriers of C allele (CC+TC) than in TT homozygote (OR = 2.47, 5%CI = 1.68- 3.610. (3) Gastric cancer patients complicated with Hp infection 211 cases, gastric cancer group of the male patients with HP positive patients with 187 cases, 40 cases of female patients with negative patients, 24 cases were HP positive, negative in 137 cases, control group male patients, 28 cases were Hp positive, negative in 95 patients, female patients with Hp positive 6 cases, 75 cases were negative. On hierarchical analysis, the male group OR value was 15.9 (95%CI to 9.22-27.3), and the female OR was 2.19 (95%CI 0.88-5.59), indicating a greater contribution in males (P <0.01). After elimination of gender effects, positive HP and gastric cancer were closely related (OR 8.82, 95% CI: 5.45-14.3). (4) The distribution frequency of C allele in patients with Hp infection was much higher than that in Hp negative cases in the GC group (64.5% vs 47.0%, OR = 2.05, 95%CI = 1.54-2.74, P < 0.01). Compared with TT homozygotes, (CC+TC) genotype prevalence of gastric cancer risk increased significantly (OR = 2.96, 5%CI = 1.76-2.99 ). Conclusion: The T allele in the connexin37 gene might not only be associated with gastric cancer but also with H. pylori infection.