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Characteristics and Main Points of the Theory and Technology of Hypobaric Storage and Preservation of Fresh Agricultural Products: Insights Gained from Two Monographs by Stanley P. Burg
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作者 Xianzhang ZHENG 《Asian Agricultural Research》 2025年第3期27-39,共13页
In 2004 and 2014,two monographs on hypobaric storage(LP)were published by Stanley P.Burg.Based on his theoretical framework and technological advancements,as well as the research and development of equipment conducted... In 2004 and 2014,two monographs on hypobaric storage(LP)were published by Stanley P.Burg.Based on his theoretical framework and technological advancements,as well as the research and development of equipment conducted under his guidance,alongside customer practices and reflections on various scientific literature both domestically and internationally,it is posited that,as articulated in the monograph,misconceptions regarding his theory and technology in Western scientific literature prior to 1985 continue to persist.This ongoing dissemination of misunderstandings has resulted in a near stagnation of research and has adversely impacted the Chinese academic community as well.Consequently,it is essential to delineate the characteristics and main points of its theory and technology,with the aim of offering guidance to individuals seeking to comprehend its foundational purpose.LP technology is a dynamic physical technology that continuously and uninterruptedly extracts air from a closed container and simultaneously introduces fresh,low-pressure moist air from the external environment,while maintaining specific levels of humidity and/or temperature within the container and upholding a predetermined pressure value.Preservation technology is the collective term for the set of various technical parameters associated with preservation,including pressure,relative humidity,and other relevant factors,to which LP equipment is specifically designed.The theory of LP is characterized by the enhanced diffusion of gases and vapors that enter and exit the commodity in a dynamic manner under low pressure conditions.The theoretical points involve equipment performance,low pressure,the impact of trace concentrations of gases such as O_(2),CO_(2) and C_(2)H_(4) that naturally occur at low pressure,diffusive mass transfer,heat transfer,and impacts on the activity of enzymes associated with maturation and senescence.The technology is characterized by dynamic low pressure,and the range of commodities preserved is comparable to that of refrigeration.However,certain commodities exiting the hypobaric environment possess subsequent preservation advantages that are not available through refrigeration.The main points of the technology encompass an extended sotrage life,a postponement of quality degradation,minimized water loss,the suppression of pathogen growth,and the killing of both internal and external insects of the commodity under dynamic low pressure conditions.The core advantage of LP technology lies in its ability to significantly reduce water loss,inhibit respiration and C_(2)H_(4) action,and pathogen growth,killing insects and modulate the activity of enzymes associated with maturation and senescence in post-harvest fresh horticultural products.Consequently,this technology plays a crucial role in prolonging the post-harvest lifespan of these commodities and mitigating quality degradation.Over the past decade,researchers in China have developed a hypobaric short period treatment technology,grounded in LP theory and technical practice,which is commonly referred to as hypobaric treatment.This method has garnered significant attention,leading to an increase in both domestic and international research.A growing body of literature categorizes LP as hypobaric treatment,while some studies also consider vacuum packaging and modified atmosphere packaging(MAP)as LP or hypobaric treatment.Misunderstandings are exacerbated by confusion surrounding nomenclature,which,in conjunction with pre-existing misconceptions,represents a significant barrier to both the research and practical application of the technology.The successful commercial implementation of a vacuum cold fresh chain,centered on LP or hypobaric treatment technology,may be the sole solution to the prevailing misunderstandings associated with LP. 展开更多
关键词 Hypobaric storage Stanley P.Burg Hypobaric treatment preservation THEORY Technology Characteristics and main points Vacuum cold fresh chain
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CAS 132-2006 Standard for Flat Panel Display TV Set Installation Service Formulating and Enforcing Main Point Explanation and Analysis
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作者 TCL group, TTE China Business Center Technical Service Depart-ment. 《China Standardization》 2007年第4期26-31,共6页
  CAS 132-2006 formulation background and work courses   Flat panel display technology is maturing alongside the development of science and technology. The prices of flat panel display TV sets are becoming lower ...   CAS 132-2006 formulation background and work courses   Flat panel display technology is maturing alongside the development of science and technology. The prices of flat panel display TV sets are becoming lower and lower. Flat panel display TV sets have begun entering the mainstream and are now the first choice of some consumers when making new TV purchases.Display TV Set Installation Service Point Explanation and AnalysisRepair, Retreat and Change Duty Stipulations. Peculiar use conditions, usage environments, and the practical circumstances of user consumption service requirements, etc., were also taken into account on the basis of extensive investigation, testing, and verification.…… 展开更多
关键词 TV In CAS 132-2006 Standard for Flat Panel Display TV Set Installation Service Formulating and Enforcing main point Explanation and An
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The State Power Corporation issued the annual main points of works
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《Electricity》 2001年第1期42-42,共1页
关键词 well The State Power Corporation issued the annual main points of works
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The proposed main points of the revision of the Chinese Maritime Code
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作者 HU Zhengliang SUN Siqi 《海大法律评论》 2017年第1期1-20,共20页
The main points of the revision in the near future of the Chinese Maritime Code are discussed,which include extension of the scope of application of the Code to the transport and vessels in inland navigable waters adj... The main points of the revision in the near future of the Chinese Maritime Code are discussed,which include extension of the scope of application of the Code to the transport and vessels in inland navigable waters adjacent to the sea,modernization of the law on the contracts of carriage of goods by sea,establishment of legal regime governing compensation for marine pollution from ships,improvement of provisions regarding shipmasters and crew in order to provide them with more protections,and the increase of the global limits of liability and the limit of liability of carrier for death of or personal injuries to passengers especially in the domestic trade. 展开更多
关键词 CHINESE MARITIME CODE REVISION main pointS
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关于水环境监测技术分析与监测质量控制的要点研究
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作者 孙珊珊 《皮革制作与环保科技》 2026年第1期62-63,72,共3页
本文围绕水环境监测展开,梳理了物理、化学、生物以及智能化等多种监测技术的应用,深入解析各自的特点和适用场景。结合目前的监测实践,着重探讨了确保监测数据准确可靠的几项关键原则,包括数据质量保障、设备校准、标准化采样和实验室... 本文围绕水环境监测展开,梳理了物理、化学、生物以及智能化等多种监测技术的应用,深入解析各自的特点和适用场景。结合目前的监测实践,着重探讨了确保监测数据准确可靠的几项关键原则,包括数据质量保障、设备校准、标准化采样和实验室分析流程的规范化。通过实例和实际问题剖析,指出了每个环节若松懈都可能影响水质判定和环境管理,旨在为水环境监测工作的流程优化和风险管控提供更有针对性的技术参考和经验总结。 展开更多
关键词 水环境监测技术 质量控制 要点
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Analysis and Exploration on Key Points of Engineering Cement Testing
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作者 MA Xiao 《外文科技期刊数据库(文摘版)工程技术》 2021年第2期604-609,共6页
With the rapid development of Chinese economy, Chinese construction industry has also been more significant progress and development. As one of the most commonly used building materials in engineering project construc... With the rapid development of Chinese economy, Chinese construction industry has also been more significant progress and development. As one of the most commonly used building materials in engineering project construction, the quality of cement directly determines the quality of the whole construction project and the safety of users. The construction unit shall select the appropriate test and detection method according to the actual situation and strictly control the material quality. This paper focuses on the analysis of the test and detection of cement materials and expounds the specific methods for reference. 展开更多
关键词 construction engineering CEMENT TESTING main points
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Analysis of Design Points and Development Trend of Prefabricated Building Structure System
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作者 XUEJing ZHANGDonghui 《外文科技期刊数据库(文摘版)工程技术》 2022年第7期040-043,共4页
Nowadays, China is promoting the urbanization construction in an all-round way, which puts forward higher requirements for the quality and structure of construction projects. In the past, the control methods caused gr... Nowadays, China is promoting the urbanization construction in an all-round way, which puts forward higher requirements for the quality and structure of construction projects. In the past, the control methods caused great pollution to the natural environment, and extensive control also caused various problems in the quality of construction projects. In recent years, many new technologies and methods have been applied to the architectural design industry in China, especially the application of BIM technology in the design of prefabricated buildings, which has attracted the general attention of technical experts and staff. It can not only improve the efficiency of architectural design, but also ensure the quality of architectural engineering. This paper explores the design and application of prefabricated buildings, hoping to provide reference for practitioners. 展开更多
关键词 prefabricated buildings structure design TREND main points
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Research on the Planning and Architectural Design Points of Antique Commercial Street
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作者 XUELinxin 《外文科技期刊数据库(文摘版)工程技术》 2022年第9期187-190,共4页
With the continuous development of social economy and the improvement of peoples living standard, experiential consumption has gradually become the main appeal of modern customers, and shopping space has become the ca... With the continuous development of social economy and the improvement of peoples living standard, experiential consumption has gradually become the main appeal of modern customers, and shopping space has become the carrier of a brand-new lifestyle. Commercial blocks are gradually favored by urban residents, and a large number of commercial blocks are built in cities, among which the commercial blocks with the theme of "antique" are the most representative. The application of antique architectural design in commercial street, which carries modern urban life and embodies the charm of traditional culture, is of positive significance for excavating urban culture and enhancing its connotation and value. 展开更多
关键词 antique commercial street PLANNING architecture design main points
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Research and Practice on Soft Soil Foundation Treatment Technology and Control Points in Highway Construction
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作者 NIU Xibing 《外文科技期刊数据库(文摘版)工程技术》 2021年第11期1160-1164,共8页
Scientific treatment of soft soil foundation can make the foundation structure more stable, effectively control all links in highway soft soil foundation construction, ensure the smooth progress of subsequent highway ... Scientific treatment of soft soil foundation can make the foundation structure more stable, effectively control all links in highway soft soil foundation construction, ensure the smooth progress of subsequent highway engineering construction and ensure the construction quality of highway engineering. Therefore, it is very important to strengthen the construction management of highway construction soft soil foundation. In the process of expressway construction, the highway construction unit also needs to pay more attention to the soft soil foundation, and take targeted soft soil foundation treatment technology on the basis of combining the local geological and climatic characteristics, so as to lay a good foundation for the subsequent expressway construction. By taking targeted treatment measures, the construction results of highway soft soil subgrade are maintained, which provides a reliable guarantee for the overall construction of highway. 展开更多
关键词 highway construction soft soil subgrade TECHNOLOGY main points
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Discussion on Design Principles and Key Points in the Process of Architectural Scheme Design
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作者 YUXiaoting 《外文科技期刊数据库(文摘版)工程技术》 2022年第8期092-095,共4页
Since the establishment of the socialist economic market, the construction industry has won an important milestone in the development history and gained sufficient development momentum. However, at the same time, many... Since the establishment of the socialist economic market, the construction industry has won an important milestone in the development history and gained sufficient development momentum. However, at the same time, many construction enterprises have to face more intense market competition. Adapting to the market trend and meeting the actual demand of the people for housing construction has become the key point for construction enterprises to occupy the market position. In the new era, people no longer only pay attention to the usability of architectural design, but pay more attention to the coordination among architectural aesthetics, practicality and stability. Therefore, construction enterprises must optimize the design of housing construction schemes, and optimize housing construction projects from the actual situation and cost of the project. Then, as an architectural designer, to do a good job in architectural design, there must be a basic design principle. Then, this paper analyzes the design principles and key points in the process of architectural scheme design, so as to provide reference for relevant people. 展开更多
关键词 house building design scheme specific principles main points
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Discussion on Key Points of Building Steel Structure Construction Technology
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作者 ZHAOChengwei 《外文科技期刊数据库(文摘版)工程技术》 2022年第6期144-148,共5页
Scientific and reasonable application of steel structures in construction projects can not only promote the rapid development of the construction industry, but also help to improve the economic benefits of other indus... Scientific and reasonable application of steel structures in construction projects can not only promote the rapid development of the construction industry, but also help to improve the economic benefits of other industries in our country. Therefore, relevant construction engineering units must fully grasp the technical points of steel structure construction. 展开更多
关键词 house building steel structure construction technology main points
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The Construction and Key Points of Refined Management of Enterprise Financial Internal Control
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作者 ZHOUJing 《外文科技期刊数据库(文摘版)经济管理》 2022年第6期226-229,共4页
With the rapid development of economy, the scale of enterprises is constantly expanding, the market situation and competitive pressure are gradually increasing, and enterprise managers are gradually aware of the impor... With the rapid development of economy, the scale of enterprises is constantly expanding, the market situation and competitive pressure are gradually increasing, and enterprise managers are gradually aware of the importance of financial internal control. The traditional financial management model can no longer meet the development needs of enterprises under the new situation. In order to further improve the financial management level of enterprises, it is necessary to change the traditional financial internal control management model, apply the refinement concept to the financial internal control management of enterprises, increase the attention to each link in financial management, standardize the financial internal control management and give full play to its value in enterprise management. Based on this, this paper focuses on the analysis of the practical application of refined management concept in the current financial internal control of Chinese enterprises, for reference. 展开更多
关键词 internal control of corporate finance refined management CONSTRUCTION main points
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Analysis of Key Points of Channel Design in Small Irrigation and Water Conservancy Project
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作者 REN Xiongzhang 《外文科技期刊数据库(文摘版)工程技术》 2021年第1期644-648,共5页
For the rapid development of irrigation channel engineering, it is imperative to improve the standardization of irrigation channel engineering design, which is not only related to the quality of irrigation channel eng... For the rapid development of irrigation channel engineering, it is imperative to improve the standardization of irrigation channel engineering design, which is not only related to the quality of irrigation channel engineering, but also closely related to the sustainable development of agriculture in China. Therefore, the relevant departments should attach great importance to the design of irrigation channel engineering, and take effective measures to give full play to the function of irrigation channel engineering. 展开更多
关键词 small scale irrigation and water conservancy channel design main points
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Analysis of Clinical Points of General Surgery for Thyroid Tumor
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作者 SHIHaiqing 《外文科技期刊数据库(文摘版)医药卫生》 2022年第3期033-036,共4页
Objective: To study the clinical effect of general surgical treatment of thyroid tumor. Methods: Patients with thyroid cancer treated in our hospital from March 2017 to March 2021 were taken as observation objects, an... Objective: To study the clinical effect of general surgical treatment of thyroid tumor. Methods: Patients with thyroid cancer treated in our hospital from March 2017 to March 2021 were taken as observation objects, and the data of research samples were provided by relevant departments of our hospital. In order to ensure the authenticity and effectiveness of the project, 60 patients were divided into control group and observation group, with 30 patients in each group, and different treatment methods were adopted in the research samples. The control group was treated with conventional conservative treatment, while the observation group was treated with general surgery. The total effective rate, treatment satisfaction, disease recurrence rate and complication rate of the two groups were compared. Results: Through relevant calculation and statistical analysis, the total effective rate of the two groups was significantly higher in the observation group than that of the control group, with the observation group (96.67%) being higher than that of the control group (73.33%). In terms of treatment satisfaction, the treatment satisfaction of the observation group was significantly higher than that of the control group, P<0.05. The results also showed that the recurrence rate and complication rate of the observation group were lower than those of the control group, P<0.05. Conclusion: The summary and analysis results show that the integration of general surgical treatment scheme into the treatment of thyroid tumor can improve the treatment effect of patients to a certain extent, reduce the occurrence of complications and the possibility of disease recurrence. It is a modern clinical treatment method, and is worthy of clinical application. 展开更多
关键词 thyroid tumor surgical treatment main points
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Analysis of Key Points of Construction Cost Pre-settlement Audit
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作者 ZHAO Lifang 《外文科技期刊数据库(文摘版)工程技术》 2021年第10期1372-1376,共8页
Budget and settlement audit is a kind of symbol, which is not only related to the effect of resource allocation, but also has a close impact on the comprehensive benefit. It is one of the ways to solve the cost proble... Budget and settlement audit is a kind of symbol, which is not only related to the effect of resource allocation, but also has a close impact on the comprehensive benefit. It is one of the ways to solve the cost problem at present. Secondly, intervention control should be carried out in the contract signing process according to the composition of the project, so as to better complete the budget and settlement audit work, reduce the burden of work in terms of data accuracy and project audit, and complete the work transformation according to the characteristics of digital technology. Therefore, when discussing such problems, we should study the key and difficult links, optimize the composition of the work, and improve the method. 展开更多
关键词 PRE-SETTLEMENT AUDIT analysis the main points
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Research on the Key Points of Supervision and Management in the Construction Process of Construction Engineering
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作者 XU Ke 《外文科技期刊数据库(文摘版)工程技术》 2021年第11期874-877,共6页
In the field of construction, due to the fierce competition caused by market demand, construction companies must reform their management model if they want to achieve development in the future industry. Under the back... In the field of construction, due to the fierce competition caused by market demand, construction companies must reform their management model if they want to achieve development in the future industry. Under the background of the current new era, the traditional management mode of construction companies has a negative impact on the efficiency and quality of project completion. Therefore, how to reform the construction management level, apply mature engineering management skills and effectively improve the efficiency and quality of engineering construction is very important for the healthy development of the whole society and the civil engineering industry. 展开更多
关键词 construction of construction projects supervision management main points
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Discussion on the Key Points of Fruit Tree Cultivation Technology and Cultivation Management Measures
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作者 JIANG Lihua 《外文科技期刊数据库(文摘版)自然科学》 2020年第2期121-125,共5页
With the progress of the society, the relevant departments of agricultural technology in our country attach great importance to the variety selection and management measures of fruit tree cultivation, especially in th... With the progress of the society, the relevant departments of agricultural technology in our country attach great importance to the variety selection and management measures of fruit tree cultivation, especially in the remote mountainous areas of our country, the management level of fruit tree cultivation should be improved. The cultivation technology of fruit trees is continuously optimized to ensure that the fruit trees can grow more healthily, and the growth environment is also optimized, thereby improving the economic benefits of fruit tree cultivation and increasing the economic income of people. Next, the article discusses the key points of fruit tree cultivation techniques and cultivation management measures. 展开更多
关键词 fruit tree cultivation technique main points cultivation management
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基于全站仪的长焦相机指向激光轴线调整方法
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作者 任鹤猛 黄喆 +1 位作者 李佳雄 张岚清 《天津科技大学学报》 2026年第1期69-72,80,共5页
针对煤矿巷道掘进导向系统中测量相机与指向激光轴线需保持严格共轴这一需求,提出一种基于全站仪的长焦相机主光轴线与指向激光轴线平行度调整方法。基于全站仪分别在相机轴线和激光轴线上各测量两个点的坐标,利用空间几何关系解算激光... 针对煤矿巷道掘进导向系统中测量相机与指向激光轴线需保持严格共轴这一需求,提出一种基于全站仪的长焦相机主光轴线与指向激光轴线平行度调整方法。基于全站仪分别在相机轴线和激光轴线上各测量两个点的坐标,利用空间几何关系解算激光轴线和相机轴线方位角和俯仰角,得出激光轴线相对相机轴线的水平、垂直偏差角度,以完成轴线调整操作。实验结果表明,两条轴线的俯仰角和方位角偏差角度均低于0.001°,该方法可以实现两条空间轴线的精确调整,满足指向激光对相机轴线的高精度映射要求。 展开更多
关键词 平行性 相机主光轴线 指向激光轴线 方位角 俯仰角 全站仪
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往复式压缩机管道系统振动响应测试与动力特性分析
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作者 王浩然 《石油工业技术监督》 2026年第3期13-20,共8页
为揭示天然气流体对集输站场往复式压缩机管道振动的影响,基于流固耦合理论建立含天然气介质和压缩机的管道系统动力学方程。以某集输管道为对象,构建有无流体介质的有限元模型,提取前10阶固有频率并分析前3阶振型,同时结合工艺流程在... 为揭示天然气流体对集输站场往复式压缩机管道振动的影响,基于流固耦合理论建立含天然气介质和压缩机的管道系统动力学方程。以某集输管道为对象,构建有无流体介质的有限元模型,提取前10阶固有频率并分析前3阶振型,同时结合工艺流程在现场布置80组传感器,选取10个关键测点分析振动信号频谱特性,并进行数值结果对比。研究表明:空管与流固耦合模型固有频率差异显著,流体效应使振动频率最高提高了173.05%,且振型由局部集中转为沿线连续分布;实测数据显示悬空阀门X向振动剧烈,分离器罐体Z向主导振动明显,出口段振动衰减,系统主频为130~170 Hz,在200~275 Hz存在次峰,与模态结果吻合。该研究为管道振动诊断与安全优化提供了理论及实测依据。 展开更多
关键词 往复式压缩机 管道结构系统 多点振动测试 主频特性 流固耦合 有限元分析
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Analysis of Technical Key Points in Mechanical and Electronic Engineering Design
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作者 WANG Shuai 《外文科技期刊数据库(文摘版)工程技术》 2021年第7期219-221,共5页
The electronic information engineering industry of construction machinery industry is an important high-tech pillar industry in contemporary China. It also has important strategic significance in continuously improvin... The electronic information engineering industry of construction machinery industry is an important high-tech pillar industry in contemporary China. It also has important strategic significance in continuously improving the international technology influence level of contemporary Chinese enterprises. In order to effectively promote the further and healthy development of electronic machinery and electronic components engineering, many domestic experts and related experts have carried out more in-depth research on its application. 展开更多
关键词 MECHATRONICS engineering design main technical points
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