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纸板拉深工艺的关键特征性对快速运行包装机中应用的检验

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绿色包装 2017年第1期 53-53页

作者： Marek Hauptmann Thomas Kustermann Manfred Schmalholz Hans Haug jens-peter majschak

伺服电机驱动器与弹簧封装在同一试验容器内,实验者使用应用程序,通过深冲技术使包装机周期率达到150,在快速运行的过程中对箱体持续施加精准的压边力。水辊在试验中被用来当做使材料与水分隔离的外力介质。

关键词：包装机商业机械

Male reproductive organs are at risk from environmental hazards

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Asian Journal of Andrology 2010年第2期12卷 152-156页

作者： jens peter Bonde Department of Occupational and Environmental Medicine Bispebjerg University HospitalDK-2400 Copenhagen NVDenmark

Male reproductive disorders that are of interest from an environmental point of view include sexual dysfunction,infertility,cryptorchidism,hypospadias and testicular cancer. Several reports suggest declining sperm counts and increase of these reproductive disorders in some areas during some time periods past 50 years. Except for testicular cancer this evidence is circumstantial and needs cautious interpretation. However,the male germ line is one of the most sensitive tissues to the damaging effects of ionizing radiation,radiant heat and a number of known toxicants. So far occupational hazards are the best documented risk factors for impaired male reproductive function and include physical exposures （radiant heat,ionizing radiation,high frequency electromagnetic radiation）,chemical exposures （some solvents as carbon disulfide and ethylene glycol ethers,some pesticides as dibromochloropropane,ethylendibromide and DDT/DDE,some heavy metals as inorganic lead and mercury） and work processes such as metal welding. Improved working conditions in affluent countries have dramatically decreased known hazardous workplace exposures,but millions of workers in less affluent countries are at risk from reproductive *** data show that environmental low-level exposure to biopersistent pollutants in the diet may pose a risk to people in all parts of the world. For other toxicants the evidence is only suggestive and further evaluation is needed before conclusions can be drawn. Whether compounds as phthalates,bisphenol A and boron that are present in a large number of industrial and consumer products entails a risk remains to be established. The same applies to psychosocial stressors and use of mobile phones. Finally,there are data indicating a particular vulnerability of the fetal testis to toxicants-for instance maternal tobacco smoking. Time has come where male reproductive toxicity should be addressed form entirely new angles including exposures very early in life.

关键词： epidemiology fertility occupation risk factors semen quality

Semen analysis from an epidemiologic perspective

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Asian Journal of Andrology 2010年第1期12卷 91-94页

作者： jens peter Ellekilde Bonde Department of Environmental and Occupational Medicine Copenhagen University Hospital Bispebjerg Bakke 23 2400Copenhagen NV Denmark

The fifth edition of the World Health Organization （WHO） manual for semen analysis includes for the first time reference values for human semen characteristics. This paper considers whether such values will help to resolve the intensely debated data indicating temporal and geographical shifts in sperm counts and hypotheses that anthropogenic activities that result in the release of chemicals into the environment are detrimental to male reproductive health. The reasons that these reference values will not fulfil these purposes are also explained. Although established reference values for semen characteristics are of limited value in analytical epidemiologic research, the WHO guidelines are of utmost importance for supporting the development of appropriate research protocols. Moreover, in spite of its limitations, semen analysis is still a useful research tool in epidemiological research, and no superior alternatives are on the horizon.

关键词： decline epidemiology reference values research semen analysis sperm counts

Environmental xenobiotics and male reproductive health

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Asian Journal of Andrology 2014年第1期16卷 3-4页

作者： jens peter Bonde Aleksander Giwercman Department of Occupational and Environmental Medicine Frederiksberg and Bispebjerg Hospital University of Copenhagen Denmark Reproductive Medicine Centre Skne University Hospital Maim6 Sweden.

Lessons from the occupational arena fdemonstrate the potential of industrial 4chemicals to damage human testicular function. An important but still unresolved question is whether low-level xenobiotic exposure of the general population poses a hazard. In this volume of the Asian Journal of Andrology, this issue is addressed by a series of reviews on xenobiotic exposure profiles, possible biological mechanisms, research methods and knowledge on impact of specific exposures. Interdisciplinary research fields as gene-environment interaction and male-mediated developmental toxicity is also addressed. Papers are cross-linked by answers to questions mutually put forward by the authors.

关键词： xenobiotics chemicals occupational

Barriers to WHO Mental Health Action Plan updates to expand family and caregiver involvement in mental healthcare

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General Psychiatry 2022年第2期35卷 154-156页

作者： jens peter Eckardt Research Unit Bedre PsykiatriCopenhagenDenmark

In 2021,the 74th World Health Assembly endorsed updates to the WHO's Comprehensive Mental Health Action Plan extending to 2030,including revised indicators to measure progress towards reaching defined targets and expa... 详细信息

关键词： expanded revised Action

Persistent organic pollutants and male reproductive health

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Asian Journal of Andrology 2014年第1期16卷 71-80页

作者： Anne Vested Aleksander Giwercman jens peter Bonde Gunnar Toil- Department of Occupational Medicine Danish Ramazzini Centre Aarhus University Hospital Aarhus Denmark Reproductive Medicine Centre Lund University Skane University Hospital Malm6 Sweden Department of Occupational and Environmental Medicine Bispebjerg Hospital of Copenhagen University

Environmental contaminants such as persistent organic pollutants （POPs） are man-made bioaccumulative compounds with long half-lives that are found throughout the world as a result of heavy use in a variety of consumer products during the twentieth century. Wildlife and animal studies have long suggested adverse effects of exposure to these compounds on human reproductive health, which, according to the endocrine disrupter hypothesis, are ascribed to the compounds＇ potential to interfere with endocrine signaling, especially when exposure occurs during certain phases of fetal and childhood development. An extensive number of epidemiological studies have addressed the possible effects of exposure to POPs on male reproductive health, but the results are conflicting. Thus far, most studies have focused on investigating exposure and the different reproductive health outcomes during adulthood. Some studies have addressed the potential harmful effects of fetal exposure with respect to malformations at birth and/ or reproductive development, whereas only a few studies have been able to evaluate whether intrauterine exposure to POPs has long-term consequences for male reproductive health with measurable effects on semen quality markers and reproductive hormone levels in adulthood. Humans are not exposed to a single compound at a time, but rather, to a variety of different substances with potential divergent hormonal effects. Hence, how to best analyze epidemiological data on combined exposures remains a significant challenge. This review on POPs will focus on current knowledge regarding the potential effects of exposure to POPs during fetal and childhood life and during adulthood on male reproductive health, including a critical revision of the endocrine disruption hypothesis, a comment on pubertal development as part of reproductive development and a comment on how to account for combined exposures in epidemiological research.

关键词： endocrine disruption male reproduction persistent organic compounds reproductive hormones semen quality

Availability of elements for heterogeneous catalysis: Predicting the industrial viability of novel catalysts

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Chinese Journal of Catalysis 2018年第1期39卷 16-26页

作者： Anders B. Laursen jens Sehested Ib Chorkendorff peter C. K. Vesborg Department of Physics Technical University of DenmarkFysikvej bygn.307DK‐2800 Kgs.LyngbyDenmark Haldor Topsoe A/S Haldor Topsoe Alle 1DK乚2800 Kgs.LyngbyDenmark

Growing concern regarding the sustainability of the chemical industry has driven the developmentof more efficient catalytic ***‐generation estimates of catalyst viability are based oncrustal abundance,which has severe ***,we propose a second‐generation approachto predicting the viability of novel catalysts prior to industrial implementation to benefit the globalchemical *** this prediction,we found that a correlation exists between catalyst consumptionand the annual production or price of the catalyst element for11representative industrialcatalytic *** on this correlation,we have introduced two new descriptors for catalystviability,namely,catalyst consumption to availability ratio per annum(CCA)and consumed catalystcost to product value ratio per annum(CCP).Based on evaluations of CCA and CCP for selected industrial reactions,we have grouped catalysts from the case studies according to viability,allowing the identification of general limits of viability based on CCA and *** the CCA and CCP and their comparing with the general limits of viability provides researchers with a novel framework for evaluating whether the cost or physical availability of a new catalyst could be *** have extended this analysis to calculate the predicted limits of economically viable production and product cost for new catalysts.?2018,Dalian Institute of Chemical Physics,Chinese Academy of *** by Elsevier *** rights reserved.

关键词： Heterogeneous catalysis Industrial catalysis Sustainability Element availability Catalyst Catalyst design Element abundance Scalability

Misconceptions about falling sperm counts and fertility in Europe

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Asian Journal of Andrology 2013年第2期15卷 195-198,I0005页

作者： Egbert R te Velde jens peter Bonde Department of Public Health Erasmus University MC Rotterdam GE 3015 The Netherlands Reproductive Medicine Utrecht University Utrecht CM 3584 The Netherlands Department of Occupational and Environmental Medicine Bispebjerg Hospital University of Copenhagen Copenhagen NV 24C0 Denmark

The Science Policy Briefing on male reproductive health pubfished by the authoritative European Science Foundation （ESF） in 2010 echoes the views expressed in the famous paper by *** et al, suggesting that mean sperm counts decreased by 50%. The authors are convinced that the male reproductive system in industrialized countries is under attack from envi- ronmental chemicals. This may have farreaching consequences for the reproductive capacity of future generations. Their arguments, however, contain some misconceptions about declining sperm quality and fertifity. Although there is reason for concern about the effect of environmental pollution, the authors＇ pessimism is not justified.

关键词： TIME TRENDS INFERTILITY TREATMENT REGIONAL DIFFERENCES WAITING TIME PREGNANCY SEMEN EPIDEMIOLOGY POPULATION PREVALENCE FECUNDITY

On environmental threats to male infertility

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Asian Journal of Andrology 2013年第2期15卷 199-200,I0005页

作者： Allen J Wilcox jens peter E Bonde Epidemiology Branch National Institute of Environmental Health Sciences Durham NC 27709-2233 USA Department of Occupational and Environmental Medicine University Hospital of Copenhagen Copenhagen NV DK-2400 Denmark

The possibility that environmental pollutants damage human fertility is a topic of both public concern and scientific interest. The effect of environmental factors on male fertility （semen parameters） has been a special focus, stimulated in part by the dramatic damage inflicted by the pcstlcide DBCP on testicular function. Extensive searches for testicular toxicants （in particular, the proposed effects of endocrine-disrupting compounds through fetal exposure） have produced little hard evidence of impairment in humans. This scarcity of evidence may reflect the difficultles of studying human fertility. Future fertifity studies should consider the wide spectrum of environmental exposures that plausibly affect reproduction.

关键词： TESTICULAR DYSGENESIS SYNDROME IN-UTERO EXPOSURE SPERM COUNTS SEMEN QUALITY ENDOCRINE DISRUPTION REPRODUCTIVE-TRACT FERTILITY PREGNANCY PHTHALATE SMOKING