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Energy-aware fuzzy job-shop scheduling for engine remanufacturing at the multi-machine level

Jiali ZHAO, Shitong PENG, Tao LI, Shengping LV, Mengyun LI, Hongchao ZHANG

《机械工程前沿(英文)》 2019年 第14卷 第4期   页码 474-488 doi: 10.1007/s11465-019-0560-z

摘要: The rise of the engine remanufacturing industry has resulted in increased possibilities of energy conservation during the remanufacturing process, and scheduling could exert significant effects on the energy performance of manufacturing systems. However, only a few studies have specifically addressed energy-efficient scheduling for remanufacturing. Considering the uncertain processing time and routes and the operation characteristics of remanufacturing, we used the crankshaft as an illustrative case and built a fuzzy job-shop scheduling model to minimize the energy consumption during remanufacturing. An improved adaptive genetic algorithm was developed by using the hormone modulation mechanism to deal with the scheduling problem that simultaneously involves parallel machines, batch machines, and uncertain processing routes and time. The algorithm demonstrated superior performance in terms of optimal value, run time, and convergent generation in comparison with other algorithms. Computational results indicated that the optimal scheduling scheme is expected to generate 1.7 kW∙h of energy saving for the investigated problem size. In addition, the scheme could improve the energy efficiency of the crankshaft remanufacturing process by approximately 5%. This study provides a basis for production managers to improve the sustainability of remanufacturing through energy-aware scheduling.

关键词: remanufacturing scheduling     adaptive genetic algorithm     energy efficiency     sustainable remanufacturing     hormone modulation mechanism    

Atypical pituitary hormone–target tissue axis

《医学前沿(英文)》 2023年 第17卷 第1期   页码 1-17 doi: 10.1007/s11684-022-0973-7

摘要: A long-held belief is that pituitary hormones bind to their cognate receptors in classical target glands to actuate their manifold functions. However, a number of studies have shown that multiple types of pituitary hormone receptors are widely expressed in non-classical target organs. Each pituitary gland-derived hormone exhibits a wide range of nonconventional biological effects in these non-classical target organs. Herein, the extra biological functions of pituitary hormones, thyroid-stimulating hormone, follicle-stimulating hormone, luteinizing hormone, adrenocorticotrophic hormone, and prolactin when they act on non-classical organs were summarized, defined by the novel concept of an “atypical pituitary hormone–target tissue axis.” This novel proposal explains the pathomechanisms of abnormal glucose and lipid metabolism, obesity, hypertension, fatty liver, and atherosclerosis while offering a more comprehensive and systematic insights into the coordinated regulation of environmental factors, genetic factors, and neuroendocrine hormones on human biological functions. The continued exploration of the physiology of the “atypical pituitary hormone–target tissue axis” could enable the identification of novel therapeutic targets for metabolic diseases.

关键词: thyroid-stimulating hormone     follicle-stimulating hormone     luteinizing hormone     adrenocorticotrophic hormone     prolactin    

Clinical evaluation of recombinant human growth hormone injection in children with growth hormone deficiency

Ling HOU, Xiaoping LUO, Minlian DU, Huamei MA, Chunxiu GONG, Yuchuan LI, Shuixian SHEN, Zhuhui ZHAO, Li LIANG, Guanping DONG, Chaoying YAN, Hongwei DU

《医学前沿(英文)》 2009年 第3卷 第2期   页码 171-176 doi: 10.1007/s11684-009-0027-4

摘要: Recombinant human growth hormone (rhGH) has been widely used in the clinical treatment of growth hormone deficiency. To simplify the injection process and increase drug compliance, application of the GH injection has become a new treatment plan in recent years. The purpose of the current study was to evaluate the efficacy and safety of rhGH injection for the treatment of growth hormone deficiency (GHD) in children in China. In a nationwide, noncomparative, prospective, randomized, open trial, 31 children with confirmed complete GHD received subcutaneous injection of rhGH at 0.25 mg/kg·wk (0.107 IU/kg·d). The injection was given daily and the total weekly amount was separated into 6-7 injections. The patients were followed up at 3-month intervals and the treatment duration was 12 months. The height (HT), annual growth velocity (GV), mean height standard deviation score (HT SDS), blood serum insulin-like growth factor I (IGF-I), insulin-like growth factor binding protein 3 (IGFBP-3), and bone maturity before and after treatment were compared, and the safety of the treatment was analyzed. The mean HT, GV, and HT SDS were increased from 109.0±14 cm, 2.7±0.9 cm/yr, and -4.62±1.46 at baseline to 121.8±13.4 cm, 12.9±3.3 cm/yr, and -2.47±1.86 after 12 months of treatment, respectively ( <0.001). At the same time, blood IGF-I and IGFBP-3 were increased significantly [41.27±64.43 μg/L 159.21±167.92 μg/L and 1540.00±1325.11 mg/L 3533.93±1413.82 mg/L, respectively ( <0.001)]. The bone age assessments performed 6 and 12 months after the treatment showed that no advanced bone maturation was noted. No serious adverse events occurred during the treatment, and the drug-related adverse events were mainly decreased thyroid function. We conclude that rhGH injection is a safe and effective drug for treatment of growth hormone deficiency in children.

关键词: recombinant human growth hormone     injection     growth hormone deficiency    

How to judge the association of postmenopausal hormone therapy and the risk of breast cancer

Ling XU

《医学前沿(英文)》 2010年 第4卷 第3期   页码 290-293 doi: 10.1007/s11684-010-0093-7

摘要: The relevance of postmenopausal hormone therapy (HT) for breast cancer risk has been long debated, although it is one of the most important barriers for women to accept HT. Various opinions have been reported from recent randomized clinical trials and epidemiological studies. These unanswered questions include: whether HT has a positive impact on breast cancer; whether risks of therapy with unopposed estrogen and combined estrogen-progestin are different; and whether different types and routes of estrogen and progestogens, as well as the duration and cessation of HT use, have different impacts on this disorder. Recently, there has been some good news such as the following: the currently available data do not provide sufficient evidence to prove a causal relationship between postmenopausal HT and breast cancer; breast cancer in postmenopausal women using HT usually has better prognosis than that of nonusers. In conclusion, HT is still the most effective method of relieving climacteric symptoms for many postmenopausal women. However, a possible risk of breast cancer associated with long-term HT usage should not be ignored. With respect to prevention of breast cancer, regular evaluation of individual breast cancer susceptibility and close follow-up through mammography and/or breast sonography are necessary strategies for the safety of HT use.

关键词: breast cancer     postmenopausal hormone therapy     unopposed estrogen therapy     combined estrogen-progestin therapy    

Sensitivity of supplementation of thyroid hormone on treatment of idiopathic short-stature children duringtherapy with recombinant human growth hormone

Wei Wang, Shuqin Jiang, Zhirui Cui, Xiangyang Luo, Lingli Shi, Heli Zheng

《医学前沿(英文)》 2018年 第12卷 第5期   页码 580-585 doi: 10.1007/s11684-017-0585-9

摘要:

This study aimed to evaluate the effects of thyroid hormone supplementation on growth rate of children with idiopathic short stature (ISS) and low-normal serum free thyroxine FT4 who were receiving growth hormone therapy. We selected 64 prepubertal children with FT4 levels in the lowest third of the normal range as the lower FT4 group, and these children were divided randomly into two subgroups: L-thyroxine (L-T4)-treated subgroup was treated with L-T4 (0.5–3.0 g/(kg·d)) from the beginning of the study, and the non-L-T4-treated subgroup received placebo. We also selected 39 ISS children with FT4 in the upper two-thirds of the normal range as the higher FT4 group. During the first year, the lower FT4 group featured lower FT3, FT4, thyroid stimulating hormone (TSH), and insulin-like growth factor-I standard deviation score (IGF-I SDS) and significantly lower height velocity (HV) compared with the higher FT4 group. However, in the lower FT4 group, the L-T4-treated subgroup presented higher FT4, FT3, TSH, and IGF-I SDS concentrations and significantly higher HV compared with children in the non-L-T4-treated subgroup. In children with ISS, the negative effect of thyroid hormone deficiency on growth rate should be considered when FT4 level lies in the low-normal range prior to recombinant human growth hormone treatment.

关键词: therapeutic     idiopathic short-stature children     free T4     the first year     recombinant human growth hormone    

复方口服避孕药对垂体-卵巢轴激素及卵泡发育的影响

黄培,黄勋彬

《中国工程科学》 2015年 第17卷 第6期   页码 16-20

摘要: 但在周期性的COCs的无活性药间期(hormone-free interval, HFI)会有垂体-卵巢轴活性的恢复,其激素水平的变化及卵泡发育的情况与雌激素的剂量、孕激素的剂型、HFI的改变相关。

关键词: 复方口服避孕药     无活性药间期     激素     卵泡    

RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETIC

《农业科学与工程前沿(英文)》 2021年 第8卷 第2期

摘要:

Fruit ripening is a complex developmental process made up of genetically programmed physiological and biochemical activities. It culminates in desirable changes in the structural and textural properties and is governed by a complex regulatory network. Much is known about ethylene, one of the most important metabolites promoting the ripening of climacteric fruits. However, the dynamic interplay between phytohormones also plays an important part. Additional regulatory factors such as transcription factors (TFs) and epigenetic modifications also play vital role in the regulation of climacteric fruit ripening. Here, we review and evaluate the complex regulatory network comprising interactions between hormones and the action of TFs and epigenetic modifications during climacteric fruit ripening.

 

关键词: climacteric fruit ripening / phytohormones / TFs / epigenetic modifications    

基于双正交复序列的高效扩频调制方法

史小红

《中国工程科学》 2012年 第14卷 第3期   页码 108-112

摘要:

提出了一种采用双正交复序列的高效扩频调制与解调方法(DoCS)。输入数据比特流被分割为长度为M的组,每组的M比特作为输入码字,从2M-2个长度为L的DoCS序列中选择一条序列进行发送,被选中的序列以QPSK方式调制在载波上,实现扩频通信。文中还提出了一种前向相位校正(FPC)方法来解决该系统中收发两端的载波同步问题。

关键词: 调制与解调技术     高效扩频调制     前向相位校正     双正交码    

RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETIC

Yinglin JI, Mingyang XU, Aide WANG

《农业科学与工程前沿(英文)》   页码 314-334 doi: 10.15302/J-FASE-2021386

摘要: Fruit ripening is a complex developmental process made up of genetically programmed physiological and biochemical activities. It culminates in desirable changes in the structural and textural properties and is governed by a complex regulatory network. Much is known about ethylene, one of the most important metabolites promoting the ripening of climacteric fruits. However, the dynamic interplay between phytohormones also plays an important part. Additional regulatory factors such as transcription factors (TFs) and epigenetic modifications also play vital role in the regulation of climacteric fruit ripening. Here, we review and evaluate the complex regulatory network comprising interactions between hormones and the action of TFs and epigenetic modifications during climacteric fruit ripening.

关键词: climacteric fruit ripening     phytohormones     TFs     epigenetic modifications    

A driving pulse edge modulation technique and its complex programming logic devices implementation

Xiao CHEN,Dong-chang QU,Yong GUO,Guo-zhu CHEN

《信息与电子工程前沿(英文)》 2015年 第16卷 第12期   页码 1088-1098 doi: 10.1631/FITEE.1500111

摘要: With the continual increase in switching speed and rating of power semiconductors, the switching voltage spike becomes a serious problem. This paper describes a new technique of driving pulse edge modulation for insulated gate bipolar transistors (IGBTs). By modulating the density and width of the pulse trains, without regulating the hardware circuit, the slope of the gate driving voltage is controlled to change the switching speed. This technique is used in the driving circuit based on complex programmable logic devices (CPLDs), and the switching voltage spike of IGBTs can be restrained through software, which is easier and more flexible to adjust. Experimental results demonstrate the effectiveness and practicability of the proposed method.

关键词: Driving pulse edge modulation     Switching voltage spike     Complex programmable logic device (CPLD)     Active gate drive    

Cannabidiol prevents depressive-like behaviors through the modulation of neural stem cell differentiation

《医学前沿(英文)》 2022年 第16卷 第2期   页码 227-239 doi: 10.1007/s11684-021-0896-8

摘要: Chronic stress impairs radial neural stem cell (rNSC) differentiation and adult hippocampal neurogenesis (AHN), whereas promoting AHN can increase stress resilience against depression. Therefore, investigating the mechanism of neural differentiation and AHN is of great importance for developing antidepressant drugs. The nonpsychoactive phytocannabinoid cannabidiol (CBD) has been shown to be effective against depression. However, whether CBD can modulate rNSC differentiation and hippocampal neurogenesis is unknown. Here, by using the chronic restraint stress (CRS) mouse model, we showed that hippocampal rNSCs mostly differentiated into astrocytes under stress conditions. Moreover, transcriptome analysis revealed that the FoxO signaling pathway was involved in the regulation of this process. The administration of CBD rescued depressive-like symptoms in CRS mice and prevented rNSCs overactivation and differentiation into astrocyte, which was partly mediated by the modulation of the FoxO signaling pathway. These results revealed a previously unknown neural mechanism for neural differentiation and AHN in depression and provided mechanistic insights into the antidepressive effects of CBD.

关键词: cannabidiol     depression     radial neural stem cells     neurogenesis    

美洲鲥鱼卵巢发育规律和性类固醇激素变化研究

洪磊,李兆新,陈超,郭正龙,王蔚芳,雷霁霖

《中国工程科学》 2014年 第16卷 第9期   页码 86-92

摘要:

采用组织学、形态学及电化学等技术方法,研究了人工养殖条件下美洲鲥鱼雌性亲鱼卵巢发育和性类固醇激素的周期变化规律。结果表明,美洲鲥鱼属于非同步分批产卵类型;根据卵巢外部形状大小及色泽等的不同,可将美洲鲥鱼卵巢发育过程分为6 个时期;根据卵母细胞的形态结构、卵黄物质的积累和滤泡细胞的变化,将卵子发生划分为6 个时相;卵巢周期变化过程中,肝脏指数(HSI)和肥满度(CF)变化不显著,性腺指数(GSI)与血浆中雌二醇(E2)水平表现出与性腺发育协同一致的变化规律。

关键词: 美洲鲥鱼     卵巢发育     卵子发生     组织学     形态学     性类固醇激素    

Overcoming resistance to endocrine therapy in hormone receptor-positive human epidermal growth factor

Wenjie Zhu, Binghe Xu

《医学前沿(英文)》 2021年 第15卷 第2期   页码 208-220 doi: 10.1007/s11684-020-0795-4

摘要: New targeted therapies have been developed to overcome resistance to endocrine therapy (ET) and improve the outcome of HR /HER2 advanced breast cancer (ABC). We conducted a meta-analysis and systemic review on randomized controlled trials evaluating various targeted therapies in combination with ET in HR /HER2 ABC. PUBMED and EMBASE databases were searched for eligible trials. Hazard ratios (HRs) for progression-free survival (PFS), odds ratios (ORs) for objective response rate (ORR), clinical benefit rate (CBR), and toxicity were meta-analyzed. Twenty-six studies with data on 10 347 patients were included and pooled. The addition of cyclin-dependent kinase 4/6 inhibitors to ET significantly improved median PFS (pooled HR= 0.547, <0.001), overall survival (pooled HR= 0.755, <0.001), and tumor response rates (ORR, pooled OR= 1.478, <0.001; CBR, pooled OR= 1.201, <0.001) with manageable toxicities (pooled OR= 3.280, <0.001). The mammalian targets of rapamycin inhibitors and exemestane were not clinically beneficial for this pooled population including ET-naïve and ET-resistant patients. Moderate improvement in PFS (pooled HR= 0.686, <0.001) yet pronounced toxicities (pooled OR= 2.154, <0.001) were noted in the combination of phosphatidylinositol-4,5-bisphosphate 3-kinase inhibitors with fulvestrant. Future studies are warranted to optimize the population and the dosing sequence of these available options.

关键词: endocrine-resistant     HR+/HER2- advanced breast cancer     randomized clinical trials     meta-analysis     targeted therapy    

病理状态下肠道微生态的调节

王玉兰, 王保红, 吴俊芳, 江向洋, 唐惠儒, Ole H. Nielsen

《工程(英文)》 2017年 第3卷 第1期   页码 83-89 doi: 10.1016/J.ENG.2017.01.013

摘要:

人类微生态是寄居在人体中的微生物聚集体,且主要存在于胃肠道(GIT) 中。肠道微生态随着人体发育而演化,并在人类健康和疾病中起着重要作用。近年来,由于微生态会影响宿主代谢、生理学和免疫系统发育,而且微生态紊乱可能导致许多疾病,其越来越受到人们的关注。肠道微生态可能与恶性肿瘤有一定联系,如胃癌和结直肠癌;也可能与其他一些疾病有关,如非酒精性脂肪肝(NAFLD)、被称为工业化世界“生活方式疾病”的肥胖和糖尿病、冠心病以及中枢神经系统紊乱。虽然分子技术革命为我们更准确地研究肠道微生态提供了必要的工具,但是我们需要更精确地阐明其与某些人类疾病病理变化的关系,明确微生态在不同疾病中的作用是新的治疗策略发展的基础。本文概述了肠道微生态对人类健康的重要影响以及调整肠道菌群结构的潜在用途,如菌群移植用于治疗耐药艰难梭菌(C. difficile) 的感染。通过微生态干预调整肠道区域以改善人类健康的概念虽刚刚兴起,但其治疗意义显著。因此,抑制有害菌、促进有益菌可能会保护人类健康,并且这些努力将为探索发展更加合理的治疗方案打下基础。

关键词: 肠道菌群     疾病     菌群调节    

肠道菌群调节在肝细胞癌和肝移植中的应用 Review

向泽, 吴健, 李佳芮, 郑树森, 魏绪勇, 徐骁

《工程(英文)》 2023年 第29卷 第10期   页码 59-72 doi: 10.1016/j.eng.2022.12.012

摘要:

肝细胞癌(HCC)是最常见的肝脏恶性肿瘤,严重危害公众健康。肝移植(LT)是治疗HCC的有效方法,但缺血再灌注(I/R)损伤、移植排斥反应及各类并发症会大大降低其疗效。近年来,作为外科学、肿瘤学、免疫学及其他相关学科交叉融合而形成的一门综合性学科,移植肿瘤学应运而生。肠道菌群作为一个新兴的研究领域,是移植肿瘤学的重要部分。肠道菌群通过微生物群-肠道-肝脏轴对HCC的发生、发展以及LT疗效产生影响。本文综述了肠道菌群与慢性肝病的双向相互作用及其影响HCC的机制,并且概括了肠道菌群在HCC中的诊断和预后价值。此外,我们还回顾了LT后肠道菌群的变化,并讨论了肠道菌群与肝脏I/R损伤、免疫抑制药物疗效以及LT后并发症之间的关系。在移植肿瘤学时代,肠道菌群在HCC和LT中的作用应得到重视,这可以为临床瓶颈难题的解决提供新的见解。

关键词: 肠道菌群     肝细胞癌(HCC)     肝移植(LT)     临床价值     介导机制    

标题 作者 时间 类型 操作

Energy-aware fuzzy job-shop scheduling for engine remanufacturing at the multi-machine level

Jiali ZHAO, Shitong PENG, Tao LI, Shengping LV, Mengyun LI, Hongchao ZHANG

期刊论文

Atypical pituitary hormone–target tissue axis

期刊论文

Clinical evaluation of recombinant human growth hormone injection in children with growth hormone deficiency

Ling HOU, Xiaoping LUO, Minlian DU, Huamei MA, Chunxiu GONG, Yuchuan LI, Shuixian SHEN, Zhuhui ZHAO, Li LIANG, Guanping DONG, Chaoying YAN, Hongwei DU

期刊论文

How to judge the association of postmenopausal hormone therapy and the risk of breast cancer

Ling XU

期刊论文

Sensitivity of supplementation of thyroid hormone on treatment of idiopathic short-stature children duringtherapy with recombinant human growth hormone

Wei Wang, Shuqin Jiang, Zhirui Cui, Xiangyang Luo, Lingli Shi, Heli Zheng

期刊论文

复方口服避孕药对垂体-卵巢轴激素及卵泡发育的影响

黄培,黄勋彬

期刊论文

RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETIC

期刊论文

基于双正交复序列的高效扩频调制方法

史小红

期刊论文

RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETIC

Yinglin JI, Mingyang XU, Aide WANG

期刊论文

A driving pulse edge modulation technique and its complex programming logic devices implementation

Xiao CHEN,Dong-chang QU,Yong GUO,Guo-zhu CHEN

期刊论文

Cannabidiol prevents depressive-like behaviors through the modulation of neural stem cell differentiation

期刊论文

美洲鲥鱼卵巢发育规律和性类固醇激素变化研究

洪磊,李兆新,陈超,郭正龙,王蔚芳,雷霁霖

期刊论文

Overcoming resistance to endocrine therapy in hormone receptor-positive human epidermal growth factor

Wenjie Zhu, Binghe Xu

期刊论文

病理状态下肠道微生态的调节

王玉兰, 王保红, 吴俊芳, 江向洋, 唐惠儒, Ole H. Nielsen

期刊论文

肠道菌群调节在肝细胞癌和肝移植中的应用

向泽, 吴健, 李佳芮, 郑树森, 魏绪勇, 徐骁

期刊论文