户式集中空调在民用住宅中的应用及发展

简单介绍户式集中空调系统的由来,分析了制冷剂系统、风机盘管加新风系统、全空气系统3种类型的优缺点。结合工程实例,总结出全空气系统舒适、节能、低成本的特点。对户式集中空调的发展及其普及要解决的问题提出了自己的见解,最后指出其有着广阔的前景。     

关于民用建筑中湿式喷水灭火系统设置与管理的探讨

随着建筑业的快速发展及消防法规的逐步完善,自动喷水灭火系统也得到了广泛的应用.但在实际配置使用过程中,各级消防监督管理部门也发现了一些新的问题,为充分发挥自动喷水灭火系统的功效,保护人民生命财产安全,就民用建筑中湿式自动喷水灭火系统设置与管理提出了一些建议.     

Dealing with the fast-changing environment in the eastern DRC

This paper is a study of the phenomenon of trans-border ethnic relations and its impact on national integration and citizenship in the countries of West and Central Africa where trans-border ethnic groups exist. Despite the existence of many such groups in these regions, and the numerous problems associated with the continued relations among these groups across their countries of abode, the phenomenon has not been seriously studied, especially as it concerns the identification of members of such groups and how they are viewed by members of other ethnic groups, as citizens of one country or the other. This paper notes that trans-border ethnic solidarity ordinarily presents the relevant African states with two possibilities, namely: enormous benefits accruing from regional integration and cooperation among states harbouring fractions of trans-border ethnic groups; or, debilitating conflicts within and between these states. It is the reality of the latter possibility that this paper examines. The states and the international system are often incapable of containing this phenomenon of trans-border ethnic solidarity and usually respond in hostile ways, ultimately manifesting in citizenship problems. The study shows, however, that what is needed is not conflict but cooperation – within and between states having fractions of a trans-border ethnic group, and within the international system, for the enhancement of national citizenship and development in West and Central Africa.     

The ties that bind

Analysis of the failures of African security forces generally focuses on structural issues such as corruption of senior leadership, insufficient equipment and training, and coup d’état fears driving mistrust of armies that are too strong or effective. However, less examined is the role that sub-state identity plays; using Libya, South Sudan, and Mali as case studies, this paper examines how ethnicity inhibits the development of national armies, divides them, and exposes a critical flaw that adversaries are able to exploit. Given the increasingly ethnic nature of conflict throughout the world, and the rising threat that ethnic conflicts in Africa pose to regional and Western partners, it may be prudent for researchers, policymakers and other stakeholders to examine the critical role that sub-state identity plays in undermining African security forces.     

THE DEMOCRATIC REPUBLIC OF CONGO

The armed conflict in the DRC has been characterised by appalling, widespread and systematic human rights violations. It varies from civil war to a war between national armies. Much of the conflict falls between these two categories due to the involvement of foreign troops in civil strife, as well as foreign rebel groups fighting their home government's troops but on Congolese soil. The most pressing need is to cease hostilities and address the humanitarian situation in the country. Questions of justice and accountability, and issues relating to the rule of law will have to be addressed soon in order to achieve a durable peace in the country and in the region. Since there are links between different conflicts in the region, a broader solution should preferably be found. However, this would further complicate an already difficult proposition. Efforts limited to the DRC would be more feasible and could lead to similar measures in other conflict ridden countries in the region. This essay therefore discusses the available processes for justice.     

Callwell versus Graziani: how the British Army applied ‘small wars’ techniques in major operations in Africa and the Middle East, 1940–41

The period from December 1940 through to the spring of 1941 saw the British Army win a series of rapid and decisive victories over Italian and Vichy French forces in North and East Africa and the Middle East. A key feature of these operations was the extensive British use of fast-moving all-arms mobile formations utilising superior speed and mobility to out-manoeuvre considerably larger Italian formations. A number of reasons have been given for the British Army adopting this mode of warfare, but the paper contends that the best explanation is that they were an organic evolution from methods used by the British Army in ‘small wars’ throughout the early twentieth century, use of mobile ‘frontier columns’ at the operational and tactical level of war being described and recommended by Callwell himself and visible with the Army in practice in operations in India and the Middle East in particular. The inter-war period saw the combination of this model of warfare with post-First World War military technology, notably tanks, close air support and coordination by wireless. Colonial operations in this period also saw some utilisation of what would later be identified as ‘Special Forces’ – also used extensively in the Desert War – the most obvious example being Captain Orde Wingate's Special Night Squads in Palestine in 1938.     

Whatever happened to South America's splendid little wars?

South America has gained international media attention due to its ongoing arms race, with politicians and analysts warning about the possibility of war. Nevertheless, since the Chaco War in the 1930s, the region has seldom faced major inter-state wars, all of which have been short-lived and with relatively few casualties. This article will discuss in greater detail the ongoing arms race in South America, portraying it as a race ‘of levels’, with not all countries carrying out massive weaponry purchases. Finally, I will discuss regional geopolitics, geosecurity and integration as part of an analysis regarding the unlikelihood of war.     

Reassessing private military and security company (PMSC) ‘competition‘ in civil war: lessons from Sierra Leone

ABSTRACT

This paper challenges recent claims that competitive market dynamics incentivize Private Military and Security Companies (PMSCs) to fully commit to providing effective services, thereby reducing the duration of civil war. Our assessment of a most-likely case scenario for this argument – Sierra Leone – reveals four critical problems. First, there is rarely direct competition, even if numerous companies are present. Second, the presence of multiple PMSCs usually represents a collaboration among subsidiaries providing distinct services, often under the same corporate umbrella. Third, data aggregation obfuscates the overlap of PMSC presence, inflating the amount of perceived competition. Finally, we raise concerns regarding how quantitative analyses can conflate conflict intensity with conflict termination.     

From the people's army to the Jewish people's army: the IDF's force structure between professionalization and militarization

The article discusses processes of “religionization” within the institutional identity and ethos of the Israel Defense Forces (IDF) and the connection of these processes with the significant structural changes the IDF has undergone in recent decades. The main argument presented is that since the late 1980s, the IDF has been in a culture conflict, torn between soldiers and civilians who advocate turning the IDF into a professional army “military professionalization,” and others who wish to preserve, and even strengthen, the “people's army” model. The present article shows that the meaning of the term “people” in this phrase has shifted to refer strictly to the Jewish people, and that a national-ethnic perception strongly influenced by religious-national ideology has been adopted.     

Group Concentration and Violence: Does Ethnic Segregation Affect Domestic Terrorism?

This paper examines the link between ethnic segregation and domestic terrorism. The results show that ethnic segregation has a positive and significant effect on the incidence of domestic terrorism, which indicates that countries where ethnic groups are spatially concentrated face a higher risk of suffering this type of violence. This finding is not affected by the inclusion in the analysis of different covariates that may affect both ethnic segregation and domestic terrorism. The observed relationship between the degree of spatial concentration of ethnic groups and domestic terrorism is confirmed by various robustness tests. The results also suggest that the threat of secession is an important transmission channel linking ethnic segregation and domestic terrorism.